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Interview with Li yuming, director of hometown stranger: if you choose your feelings, the commercialization of the film will definitely be lost?

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Journal No.3260 on September 1, 2022

In recent years, Chinese art films have shined brilliantly in international film festivals. The film "Hometown Alien" won the amazing FIRST film in the 15th FIRST Youth Film Exhibition, the film specially mentioned by the jury in the 12th Beijing International Film Festival, the best screenwriter in the 8th Chongqing Youth Film Festival, and the special mention of the new honor of the year in the 16th Chinese Youth Film Week, and was selected into the 26th Capri Hollywood International Film Festival and the 6th New era Youth Film Season-New Force Film Project.

(At the premiere of the 15th FIRST Youth Film Exhibition)

Art film is of great significance for developing film art innovation and frontier exploration, and improving audience appreciation level. Here, the first producer talked to Li Songming, the director of Hometown Stranger, and felt the charm of art films.

Fantasy journey of love and growth, ingenious reconstruction of illusion and reality

The chairman of the jury of Beijing International Film Festival commented on "Hometown Stranger" in this way: the film uses a rare gaze to make the spectacular scenery of Guizhou’s deep mountains and rivers become the fulcrum of the whole film. Man’s existence is like a stone and a tree in nature, which gives birth to interest. Comparing with the claustrophobic space of urban life, it causes people to think philosophically about existence and memory.

(The 12th Beijing International Film Festival pays attention to the future unit award ceremony)

As the first feature film, the film Hometown Alien is based on the personal experience of screenwriter and director Li Yuming, which has a strong personal life color. The film tells the story of Xing Gui, a screenwriter who is sick in bed and hemiplegia, and conflicts with his girlfriend Xiao Jie who takes good care of him and his mother, and then falls into the trough of his life. After recovery, he returned to his hometown to write a script, and together with his elderly grandmother, his girlfriend and his mother who came later, he embarked on a fantastic journey of love and growth in a confused and different memory puzzle …

"Hometown Stranger" adopts a two-stage structure of alternating reality and reality, juxtaposes the life of big cities and villages, and shows the multifaceted nature of family life. There are conflicts between different family members’ narratives of the same thing, and even the different narratives of the same person will be inconsistent. This very common but easily overlooked point is well presented in this film.

Li yuming analyzed the narrative structure. "in the movie, the same thing, grandma told xiaojie in bad weather is a good side, but in good weather it told xinggui is a bad side." Does it look like a Tai Chi map? There is white in black and black in white. Does it look like our closest relatives? Those heartfelt words can often be blurted out to the closest relatives. In the face of outsiders, they can take care of each other’s feelings and even tell some white lies! For example, Xing Gui speaks directly to his mother and girlfriend, and sometimes even expresses his love in a harsh tone. But the way he talks to his ex-girlfriend is softer, and he will take care of each other’s feelings … "

"Fish raft" and "old house" contain a lot of symbols and metaphors.

A stranger in my hometown skillfully reconstructs illusion and reality with the structure of "play in play" The highlight "Hometown" was filmed in Bijie, Guizhou, the director’s hometown. In the film, there are many romantic and poetic scenes. Li Yuming shared that "I am from Guizhou, and the Guizhou described in the script is the Guizhou in my memory." Guizhou is a place where there is no sunny day for three days and the ground is not three feet flat. Guizhou itself has a romantic temperament, especially in winter and spring communication. Just like the two comparisons in our movie, it is uncertain, but attractive and thought-provoking. "

The filming and scenery making of Hometown Stranger are meticulous, and a lot of symbols and metaphors are buried. "Mom’s home is arranged on a fish raft, which is my feeling about my hometown and my mother’s home: I am a stranger in my hometown, wandering and have no sense of belonging. Grandma’s home is an abandoned old house we found. This old house didn’t even have doors and windows at first, and all the old things in it were bought or borrowed from the village. We chose this old house because it has a mountain on its back, a path in front and bamboo forests on its side. It has a good sense of space and layering, and it is very landing. This is also my feeling about my grandmother’s home: stable and belonging. "

It is not difficult to see that there is only one shot in each scene of "Hometown Stranger", and they are all fixed seats and large depth of field. The director canceled the scheduling of the camera and the cutting of the lens, which not only reduced the creative burden of non-professional actors, but also made the picture look realistic.

Grandma in her eighties,Contribute the most touching performance to the film

In recent years, more and more directors have begun to boldly use amateur actors to play the leading role. The 79-year-old Yang Taiyi was shortlisted as the best actor for "Crossing Zhao Guan", competing with famous actors such as Wang Jingchun, Xú Zhēng and Duan Long. In addition, in recent years, Toshitabe’s highly acclaimed "Dark Horse" literary films, such as Roadside Picnic, Heart Labyrinth, Gangrenboqi, Red Flowers and Green Leaves, have almost all starring amateurs.

In Hometown Stranger, apart from young actors Ye Linsheng and Ci Wantong, what impressed the audience the most was the performance of my grandmother. My grandmother had two scenes when talking about her childhood. She performed in two different States: sadness and freedom. She contributed to the performance of not losing professional actors in the film, which made the audience shine.

The grandmother in "Hometown Stranger" is over 80 years old and can’t read. All the lines are read to her by others. Director Li Yuming was also playing drums in his heart before filming. "I took out two plays that were difficult to complete. If grandma’s performance fell below the passing line, we would have to change people, even if she was my own grandmother. Producer Xiao Xiao found two retired old professors in Guiyang and Zunyi as alternatives. If grandma can’t control this role, she will adjust it as soon as possible. But my grandmother did a very good job, and she won the trust and respect of her crew members by her own talent. "

Realism is the natural advantage of an amateur actor. Li Yuming shared, "There is a scene to teach my grandmother to do Tai Chi exercises. I learned to teach my grandmother in advance. After she learned it several times, she slipped away. I’ caught’ her back. I said, Grandma, you have to do it with me. Life lies in exercise. Grandma said, nonsense, life lies in labor. Say that finish, grandma walked towards the field with a hoe. At that moment, I began to question my inherent ideas and education. Grandma is an old man who has never read a book. What she said is completely based on her life experience, but it is closer to the essence of life. "

Interpretation of intimate relationship from different perspectives,

Trade-offs and choices are given to the audience

In "Hometown Stranger", both the feelings before men and women, and the emotional descriptions between mothers and children, grandparents and grandchildren are all very real. The feelings between characters spill over the screen, directly hitting the audience’s hearts and making emotional connections with them. The audience can interpret from different perspectives according to their own emotional experience.

In the creation of "Hometown Stranger", it also brought new cognition to the director. "I always thought that my grandmother missed her late grandfather very much. When collecting folk songs, I asked her, do you miss grandpa? She replied that she didn’t want to. The dead old man always quarreled with me when he was alive. I was happier when he died. That moment was hard for me to accept. After speaking, grandma picked up scissors and went to grandpa’s grave 30 meters away from home, and began to repair the weeds in the grave. I said, why did you start mowing the grass before Tomb-Sweeping Day arrived? Grandma said that when your grandfather was alive, his hair was a little long and he clamored for it to be cut. I don’t think he would like the grass on the grave to be too long. At that moment, I was touched. It is true that grandma hates grandpa, and it is also true that she loves grandpa. What kind of intimate relationship is not like this? Mixed with love and hate, swing back and forth between the two! Therefore, most of the plots in Hometown Stranger are ambiguous, and there are many possibilities. The choice depends on the audience themselves.

In Hometown Stranger, there are still some memories about family of origin and intimate relationship. The director tried hard to find the truth, but he could not find it. So, he wrote the memory gap and thinking into the script and made it into a movie, about love and hate, about gain and loss. ……

Choose feelings and accept commercial loss.

Art films pay attention to the director’s personal artistic expression, and director Li Yuming does not deny that "Hometown Stranger" is a bit emotional. "At the beginning of creation, we thought very clearly that we should be emotional, and we can accept the bite of commercial loss caused by excessive feelings. At the same time, excessive commerce will also destroy the quality of the film. For producers or directors, it is necessary to balance the relationship between feelings and business. Movies that are both creative and commercial can often achieve greater success. "

In the face of the current literary film market, Li Yuming also has his own views. "As we all know, the market return rate of literary films is not high, but with the success of literary films such as" Into the Dust ",it can be seen that the audience’s film aesthetics are also improving. A benign film market must be both commercial and artistic. Our film market is very huge, so the evaluation system and the needs of the audience should not and will not always be so single, right? Even if there will be temporary failure due to some uncontrollable factors in the process, we filmmakers should keep looking forward to the future and try to change the parts that can be changed! "

At present, in the art cinema market, literary films are still generally applauded but not popular, but as the director of literary films, Li Yuming doesn’t want to give up the creation of literary films. "Will I make literary films in the future? Of course it will! But I will shoot two genre films first, and then come back to shoot literary films when I have a surplus. I don’t want to put myself or my partners in a dilemma because of my personal feelings. I would like to expect China’s future literary films to perform better and better in the market. Both the author and the audience need to grow up. Although the road is far away, the trip will come. "

How to influence the global creative network with national cultural language?

For centuries, the relationship between blacks inside and outside the African continent has been very complicated, and a history full of pain, slavery, separation and sometimes suspicion has closely linked them. However, this relationship is also developing in a positive direction. In 1964, Malcolm X visited Ghana and gave a speech at a university. At that time, he said, "I don’t feel like a tourist in Ghana or anywhere in Africa. It feels like home to me. It has been 400 years since I left this land, but this is not my intention or my wish. "

Nowadays, the connection between Africa’s growing young population and the black diaspora has become more direct. Driven by a lot of creative attempts and social media platforms such as TikTok, they inspired each other and their inspiration collided with each other. There are many such examples: Black Panther and other films have resonated, but artists such as KehindeWiley and Omar Victor Diop have created spectacular portraits of people, and Nigerian hilarious popular movies are popular in Europe and the Caribbean. There are also African pop songs by Kenyan band Sauti Sol and African beats by singers Tems, Burna Boy and Mr Eazi-in 2022 alone, African beat musicians played more than 13 billion times on Spotify.

The writer Nnedi Okorafor told us: "I will not distinguish the black diaspora from the black people on the African continent. What I am telling is the story of black people, the story of black people all over the world, and the story of this group of black people. Over the years, my personal definition of black expatriates living abroad is: every black person on earth. "

The mixed-race singer and model from Congo and China has 1.6 million fans on Weibo.

??Johnny Chiang

In a country that pays attention to "integration into the collective", Zhong Feifei stands out. The singer and model said in her home in Shanghai: "The world often tells mixed-race people that our existence is’ 50-50 split’-we are incomplete, or incomplete enough. But I feel that I am 100% Congolese and 100% Chinese. As long as you handle your own identity, any hybrid can have great power. "

In recent decades, millions of China workers have moved to the African continent, and about 500,000 African immigrants live in China. Zhong Feifei is 28 years old, her mother is Chinese, and her late father is Congolese. As a new generation in this global economic trend, she spent her childhood in two different countries. After being born in Guangzhou, she spent the first few years in the Republic of Congo. Due to the civil war in Congo, when Zhong Feifei was 5 years old, her parents sent her to Shanghai and raised her by her "very traditional grandmother in China".

At the age of 14, Zhong Feifei left China to live with her mother in Kinshasa, Democratic Republic of Congo. There, she fell in love with African beat musicians such as Burna Boy and Davido and the music of TPOK Jazz. In 2014, at the age of 18, she went to Boston University to study. After the outbreak of COVID-19, she returned to China, studied online and obtained a master’s degree in global security studies from Johns Hopkins University. At the same time, she participated in the popular reality show "Creation Camp 2020". Zhong Feifei didn’t make her debut as a group in the end, but as the first mixed-race black player, her appearance caused a storm on social media and gained the attention of 1.6 million users in Weibo.

Zhong Feifei said: "I used to want to work in a non-governmental organization, but now I think I can play a greater role in the field of pop culture as a representative of’ black Asian’, whether in China or elsewhere-even in Hollywood."

Nkuli Mlangeni-Berg, a South African textile designer

??Patricia Reyes for The New York Times

Nine years ago, when Nkuli Mlangeni-Berg, a South African textile designer, went to South America to study fabrics, he found the imprint from the motherland. She met Mario Quispe, an indigenous craftsman in Lima, Peru. Quespe shared with her his Quechua subculture weaving technology: the geometric patterns woven by weft and warp on the hand loom are very similar to the colorful textiles that Ndebele people like to place at home, and M Langini-Berg is also the descendant of Ndebele people.

After Langini Berg returned to South Africa, he decided to continue their cross-cultural communication.

In search of handmade textiles, she trekked across southern Africa and finally came to a small town on the edge of the Karoo Desert in South Africa. There are a group of women in that small town who, like Quespee, still retain the technology handed down from their ancestors. Langini-Berg brought their works to The Nine Vites, a cooperative studio she founded in 2012, which mainly produces carpets, blankets, pillows, artworks and ceramics. Most of the design of the studio is hand-woven by Peruvian and South African craftsmen with Angora goat hair, alpaca hair and wool. One of their earliest works, Sankara Carpet, was selected as "the most beautiful thing" in South Africa by Design Indaba (a global event held in South Africa every year) in 2017.

Langini-Berg often travels to mansker Raal, where her great-grandmother used to be a traditional psychotherapist in the Ndebele community. Langini-Berg said, "Textiles play a very important role in every ceremony in our family. For example, you will get a blanket when you are born, a blanket when you reach a certain age or adulthood, and the coffin will be wrapped in a blanket after you die. "

Top: carpets made by the Ninevites.

Bottom: the Ninevites cooperative studio members take a group photo.

??the Ninevites

Her design refers to the geometric patterns of Ndebele culture, the traditional beads and fabrics of Swati, and the innovation of her parents’ generation-they decorated their houses with homemade straw mats during apartheid in South Africa and cut their old clothes themselves. Tim Langini-Berg pointed out: "At home, design is to make full use of what you have."

Langini-Berg moved to Sweden in 2020, where she continued her textile research as a master student. She paid special attention to how the African-American art movement in the 20th century pursued its connection with Africa. She said: "I really want to know, apart from the common suffering, what binds us as a nation."

Langini-Berg is now highly sought after by the international market. Despite this, she still focuses on developing new cooperation with Africa. The Ninevites cooperated with Algerian artist Walid Bouchouchi to design two carpets for Swedish home improvement brand Svenskt Tenn. In addition, the pattern designed by Langini Berg has appeared on the cover of the novel Glory by Zimbabwean writer Nova Hollette bulawayo.

Looking back on her journey across the mainland and her creative practice, Ms. Langini-Berg said: "We need to heal ourselves. All the ideas and feelings we received when we grew up, as well as those things that we must identify with as black artists, are stained with strong colonial colors, and now we want to erase them."

The Senegalese photographer reshaped the world’s imagination of Africa through the lens.

??Cédrine Scheidig for The New York Times

Senegalese photographer Omar Victor Diop has a famous portrait selfie. In this photo, he is wearing a suit and a luxurious paisley bow tie, ready to blow a yellow plastic whistle. This well-designed photo can easily arouse people’s memories of Frederick Douglass.

Diop is good at depicting the pain and hope of black people all over the world. He integrated history and costume elements into his works, focusing on the important role of blacks and Africans in world history; Praise the lofty dignity of African immigrants and refugees; The history of black protests from Selma March to Soweto Uprising in South Africa is skillfully woven together. And explore the impact of climate change on Africa and the southern part of the world. Through bold images, Diop interweaves the past and the present, and explores how African life and overseas diaspora experience interact.

One of Diop’s series works "Project Diaspora" (above) imitates the portrait of Frederick Douglass (below). Douglas was an important abolitionist, activist, writer and speaker in the 19th century. He was a fugitive slave and the first African-American to be nominated as the vice president of the United States.

??Omar Victor Diop

Today, Diop lives and works in Dakar and Paris. He said: "Everything African-Americans do is still African, but they may not realize it themselves. I am very surprised and fascinated by this. Sometimes when you see an African-American on a reality TV show, it’s like seeing your sister or aunt-because their way of speaking is just like speaking Wolof in Dakar, only translated into English. "

Diop is keen on creating connections and building communities with his works, and is willing to bridge the experience generation gap between different generations of African-American groups through history. He believes: "There are many inspiring stories on the African continent, which can resonate strongly at home, and they can bring the same effect in other places. We must create more exchanges and interactions, and we don’t know each other well enough. "

Born in Dakar in 1980, Diop studied finance in Senegal and France, and worked in corporate communication departments in Dakar, Nairobi and Lagos for several years. He became a full-time artist more than ten years ago. He inherited the strong tradition of portrait photography in West African studios by artists such as Mama Casset (Senegal), Malick Sidibé (Mali) and Samuel Fosso (Nigeria), but he was not limited to this: whenever he started a project, Diop would read the relevant information of the subject crazily, talk to historians and even try to recreate the theme.

Diop hopes to show how the inspirational stories of black people in different centuries and continents are interrelated and influenced each other. He said: "The fashionable visual experience and symbolic language are my tools to sneak into the audience’s heart. Those eye-catching appearances can help me cover up the heaviness of the topic, and they are also a way for me to actively praise these memories."

Nidi Okolaf is good at finding creative inspiration from African heritage, history and mythology.

??Chanell Stone for The New York Times

In early 2023, Nnedi Okorafor signed a seven-figure contract for her latest novel The Africanfuturist, realizing a dream that had been brewing for 30 years. The book is scheduled to be published in 2025, which is the type of story that 49-year-old Okolaf has always wanted to try. She said that when she first started writing in the early 2000s, it was impossible to sell such stories. At that time, American publishers were at a loss about her stories, because many of them combined African folklore with science fiction, fantasy novels and magical realism. They repeatedly rejected Okolaf’s works on the grounds that they might confuse readers or fail to arouse understanding and resonance.

However, it turns out that as long as the right audience is found, Okolaf’s works will make people want to stop. Under her guidance, a new generation of African-American writers began to seek creative inspiration from their African heritage, history and mythology.

Okolaf, who lives in Phoenix, Arizona, has always regarded himself as a bridge between two cultures. She was born in Cincinnati, Ohio to Nigerian parents. Her parents insisted, "We are Americans, but we will always be Nigerians, and we want to keep this bond forever."

Mami Wata is a good and evil African mythological figure, which means "water god" or "mother of water". The picture shows Mami Wata written by Senegalese artist Zoumana Sane.

Photo by ??Zoumana Sane/Don Cole

From the sci-fi fantasy novel Who Fears Death set in the end of Africa to Marvel Comics’s Panther trilogy, this fetter has always been the core of Kaulaf’s works. She has done extensive research for every book, and rooted her fantasy stories in traditional West African myths: for example, her "Akata" trilogy tells the story of a Nigerian-American albino girl with magical power, and the mermaid-like mythological characters Mami Wata, Oded, trickster Ekwensu and Nsibidi appear in the book.

As more and more publishers begin to accept the artistic and commercial value of African stories, this island, which once lost Okolaf and similar writers, has now become beautiful and lively. Okolav said: "Although my body has been separated from the African continent, I still have close ties with this land. This fetter may be unstable and difficult to grasp; And it is not so clear, but this roundabout and complicated emotion is very powerful. "

Eber’s twin sisters draw inspiration from multi-cultures.

??Ricardo Nagaoka for The New York Times

In Adama Ebo and Adamma Ebo and Adanne Ebo’s first feature film, they aimed at the black church-specifically, the southern black church. In the vibrant cultural and spiritual expression of the church, the twin sisters unexpectedly found that this has an amazing connection with their father’s native Nigeria.

Adama said in a recent interview: "People always say, write what you know." She is the writer and director of Honk For Jesus. Save Your Soul, and her twin sister Adan is the producer of this film. Horn for Jesus, Save Your Soul, starring Sterling K. Brown K. Brown and Regina Hall. Brown plays the fallen priest of a super-large church in Atlanta, and Hull plays his pious and powerful wife. While making people laugh, this satirical mockumentary also conveys sympathy and reflection on the church community and the invisible female labor behind it.

Horn for Jesus, Save Your Soul is full of satire on the large church. Screenshot of the movie.

??Steve Swisher/Focus Features

Adama commented on Nigeria and the southern United States in this way: "There are many differences in culture between the two places, but there are also many similarities." "The church is one of them (similar culture)." She added. The Ebo sisters’ mother is American and their father is Nigerian. They grew up in Atlanta, so they were influenced by the black culture in the southern United States, and at the same time they carried the cultural background of Nigeria.

Adama and Adan fell in love with movies because of the classic animation Kiki’s Delivery Service and the film they called "the classic of African-American community". Like their mothers, they graduated from a black university with a long history in the southern United States. Although they have never been to Nigeria and can’t speak their father’s native language, Igbo, it is undeniable that they grew up in a family full of Nigerian culture. Adama said: "We grew up as African children, but in the eyes of our Nigerian compatriots, we are definitely not’ Africa’."

The Michelin chef always has French, West African and Japanese flavors on his menu.

??Felipe Romero Beltrán for The New York Times

Mory Sacko’s Michelin-starred restaurant MoSuke is located in Paris. The menu includes steamed tea bowls, Attié ?ké poisson (a classic Ivorian fish dish with fermented cassava flour), plantain with foie gras (albufera) and caviar. Although the diners are located in the 14th arrondissement of Paris, they don’t know that the perfect balance of salt, acid, fat and distinctive African elements in the mouth will soon lead them to start a wonderful taste journey-this is the characteristic of this French chef Sacco who claims to be of Malian origin and deeply loves Japanese culture. He said: "When you taste all the dishes on the menu, it’s like completing a trip."

So-the reservation for ——MoSuke restaurant has been arranged for several months. In the first year of its opening in 2020, this restaurant won the first Michelin star of French cuisine in West Africa and Central Africa. In 2021, French President Emmanuel Macron invited Sacco to cook a banquet for African leaders, and his cooking shone brilliantly in the diplomatic field. Sacco is also a frequent visitor to French TV programs: he participated in the French version of "master chef" as a contestant and also appeared in "Cuisine Ouverte" as a host.

Pépé soup produced by Mori Sacco.

??Felipe Romero Beltrán for The New York Times

Sacco, 32, grew up in the suburbs of Paris. He is the sixth child in his family and the first child born in France. But his snacks are still West African dishes from Mali, C? te d ‘Ivoire, Senegal, Guinea and Gabon. He said: "I was born and raised in France. I am a the French, but I also have my roots." In childhood, Sacco found another hobby of his own: Japanese comics. Soon, he discovered his favorite characters’ favorite foods, which were quite exotic to him as a teenager. Attracted by Japanese cooking techniques and traditional cooking norms, 14-year-old Sacco entered cooking school. The name of MoSuke restaurant combines Sacco’s name "Mory Mori" with the name "Yasuke Misuke", the only African-American warrior in Japanese history.

After working in major restaurants in Paris for ten years, Sacco began to think about how to present his identity with food. France has a long tradition of food, and he hopes to record the food in West Africa in the same way. He tried to recreate his mother’s Mali maafé stew, a beef dish simmered in peanut butter with peppers, tomatoes and other vegetables. Unexpectedly, it was not until he added an ingredient that obviously did not belong to Africa-miso, that this dish finally showed his own flavor. Sacco is reluctant to use the term "fusion". He said: "I tend to use more subtle expressions, such as’ communication and dialogue between different cultures’."

Loko hopes to convey through the exhibition that "creativity is not the privilege of the northern hemisphere."

??Ronan McKenzie for The New York Times

Venice is an ancient city with a classical temperament, but the Architecture Biennale in 2023 invited the audience to a "future lab". This is the first time that the Venice Architecture Biennale has focused on African and black expatriates in the past 40 years. The curator of this Biennale is Lesley Lokko, a Scottish architect, scholar and novelist of Ghanaian origin. She is also the first African-American curator of the Venice Architecture Biennale.

Rocco, 61, is the founder of African Futures Institute. African Futures Institute is an architectural institution integrating teaching, research and public activities in Accra, Ghana. Rocco has taught in South Africa, Britain and the United States, and is committed to promoting western institutions to think about African, racial and cultural identities and their relationship with physical space. Rocco said that the core topic around which she planned the Venice Biennale was: What does it mean to be a meaningful change agent in the 21st century?

Loko pointed out: "At present, the mainstream narrative often ignores the perspective from the southern part of the world and regards imagination and creativity as the privilege of the northern world. However, despite the enormous challenges brought by the natural environment, Africa is still a fertile ground full of creativity. This makes Africa an important fulcrum of our research, which helps us to further explore climate, social changes, new forms of governance and many other key issues that will dominate social development in the next century. "

In 2021, only one third of the exhibitors of Venice Architecture Biennale came from outside Europe and the United States. In 2023, from South Africa and Burkina Faso to Nigeria and Rwanda, more than half of the 89 exhibitors came from Africa or were black expatriates. Rocco said that many participants in the Venice Architecture Biennale have one thing in common, that is, they have the ability to "transform"-they can adapt to different cultures and backgrounds and extend the traditional definition of architecture.

She Loko will also "transform". Her childhood was spent in Dundee, Scotland, England and Accra, Ghana: "Scotland makes me tremble with cold, while Ghana is extremely hot." After becoming an architect, she finally had the opportunity to find her own position in the cross-cultural confusion of her childhood. Now, she regards her teaching work as a happy "comfort zone". Loko is full of expectations for the continuous progress in the field of architecture, and in the future, the change will no longer be limited to a binary opposition of the West or the North. She pointed out: "Now the world needs to realize that creativity driven by demand has immeasurable value."

Ruth E. Carter introduced African futurism into mainstream fashion.

?? Gioncarlo Valentine for The New York Times

Ruth E. Ruth E. Carter said: "Fashion designers are storytellers first." Carter is 64 years old. The film Black Panther in 2018 made her the first black man to win the Oscar for Best Fashion Design. In March, 2023, she won the second Oscar again with Panther 2, becoming the first fashion designer to win both the original film and its sequel.

The Wa Kanda world in Black Panther is a fictional African kingdom that has never experienced colonization. Carter’s design draws lessons from indigenous cultures all over the African continent: before making, she collected various tribal cultural relics, including the masks of the Maridogon, the crowns of the Simba people in Namibia, the beadwork of the Masai people in Kenya and the necklaces worn by the Ndebele women in South Africa. Carter also drew inspiration from the ideas of contemporary African fashion designers such as Laduma Ngsocorro, founder of South African knitting brand MaXhosa Africa, and Ozwald Boateng, a Ghanaian-born British tailor. He also went to the African Punk Music Festival in Johannesburg to inspect street clothes and learn about the latest trends with his eyes.

Carter won the Oscar for Best Fashion Design with Black Panther (2018). Her inspiration sources include the artist Romare Bearden (middle picture), whose collage influenced her creation in Spike Lee’s films, and the African Punk Music Festival (lower picture), which contributed to her conception of "Panther" films.

Screenshot of the movie Black Panther

Carter said: "African aesthetics, whether now or in the past, has never been single." Constantly exploring has almost become a habit of this designer. There is no doubt that she shaped the expression of black historical and cultural stories on the big screen. Carter, who lives in Los Angeles, said: "Representing culture and representing yourself (voice) has never been a burden, but a pleasure; I will also feel the pressure, but this’ pressure to do this well’ is more like a sense of mission. "

Carter was raised by his mother alone in Massachusetts, the youngest of eight children. In 1986, she moved to Los Angeles, where she met the director Spike Lee. The first film she participated in was School Daze in 1988, which was one of the many films she collaborated with Spike Lee.

Top: Screenshot of the movie "Do the Right Thing" directed by Spike Lee.

Bottom: Romare Bearden’s 1980 work Morning of the Rooster is famous for his collage depicting city life and the American South.

??Romare Bearden

Even when it is not designed for African futurism, Carter always looks for inspiration from African and black diaspora. When designing clothing styles for time films, she will refer to The Image of the Black in Western Art; Many of her works with Spike Lee refer to the works of the artist Romare Bearden; The costume modeling of Mo’ Better Blues focuses on the personal styles of jazz musicians such as Dexter Gordon, Thelonious Monk and Miles Davis.

Carter said: "It is very important for me to draw inspiration from real people or things. I dug up those tiny humanistic details and applied them to my role. " Carter’s designs not only aggregate the characteristics of black expatriates living abroad, but also promote the African futuristic style into the mainstream fashion world through the costume modeling in Black Panther and other films. Carter said: "We respect culture, and at the same time we are pushing it forward."

Nigerian musician Mr Eazi lets more people see Africa through music.

??Rasaan Wyzard for The New York Times

"Where is home?" For Nigerian musician Mr Eazi, this is not a simple question. "On the plane." When he was interviewed by video in new york, he made a joke and then said with awe, "I think the place where my family is is home, so my home is sometimes in Accra, sometimes in London, Cotonou, Lagos and Dubai."

Mr Eazi, whose original name is Oluwatosin Oluwole Ajibade, is 32 years old and was born in Port Harcourt, Nigeria, but his life and career are closely related to the world outside his motherland. Mr Eazi entered the recording studio for the first time when he was in college, and his stage name "Mr Eazi" came from this. It is said that he would stop fighting in the recording studio: "Relax, don’t be nervous."

In 2016, he was invited by rapper Lauryn Hill to perform in Brooklyn. He also sang the soundtrack of The Lion King in 2019, and worked with Colombian singer J Balvin, Puerto Rican rapper Bad Bunny, Jamaican musicians Popcaan, Nicki Minaj and Diplo. In the middle and late 2010s, Mr Eazi became popular with catchy African Afrobeats such as "Skin Tight" and "Legover".

Above: MV screenshot of Mr Eazi & Major Lazer-Legover (Remix)

Next: Mr Eazi commissioned the artist Sesse Elangwe to create the work "The Way I See It" for the single "Chop Time, No Friend".

??Sesse Elangwe/Choplife

He called his early works "Banku", which is a type of music that combines Ghanaian upper-class music and Nigerian chords. His initial success was when Nigerian musicians such as WizKid entered the western audience’s field of vision, which was partly due to social media and the recommendation of international musicians and black expatriates. Lawrence Burney wrote an article for Vice in 2016: "Many of the hottest African beat musicians use cheerful sound rhythms, and Mr Eazi gives dance music a lyrical quality with his low humming."

The African community in Britain is crucial to the early success of Mr Eazi. Mr Eazi said: "After I left Ghana, the first place to accept my music was England." Young black students were the first audience attracted by his music. He said: "These students defined’ cool’ in their minds and embraced their African identity. This is the cornerstone of the development of African diaspora music. "

Written by Abdi Latif Dahir

Veronica Chambers/Elizabeth Paton

Desiree Ibekwe/Abdi Latif Dahir

Charlie Brinkhurst-Cuff

Lynsey Chutel/Precious Adesina

Editor: Yang Ruiting

Translation: Qian Gongyi @ Panda Translation Agency

Heilongjiang: The farmer’s market shopping "scan code, take temperature, wear a mask" and leave immediately.

Cctv news(Reporter Li Wenxue) The farmer’s market is a place where people and goods flow are relatively concentrated. How can we achieve accurate prevention and control under the situation of normalization of epidemic prevention and control? At the press conference held by the Information Office of Heilongjiang Provincial Government on the evening of July 4, Heilongjiang Provincial Market Supervision Administration introduced the corresponding specific measures.

Yang Rumin, deputy director of the Provincial Market Supervision Administration, said that it is necessary to strengthen the main responsibility of farmers’ market promoters for epidemic prevention and control, and urge farmers’ markets to implement the requirements of "five haves", namely, having a sound prevention and control guide, a prevention and control management system and responsible persons, an appropriate reserve of protective materials, an emergency response plan, guidance and support from local medical and health forces, urging farmers’ markets to implement disinfection and cleaning measures, doing emergency response drills, and improving their epidemic prevention and control capabilities.

For those who enter the market, we should continue to implement anti-aggregation measures such as "scanning code, measuring temperature and wearing masks", control the flow of people in the market, and remind customers to keep a distance from others when shopping, and leave immediately after shopping. Supervise the farmer’s market to implement the management system for employees in high-risk posts, fix posts, avoid cross-operation, and implement prevention and control measures such as closed-loop management, nucleic acid detection, health monitoring and health education.

According to the unified arrangement of the local headquarters, the nucleic acid detection is carried out for the operators, staff and other people in the market. Appropriate sampling inspection and preventive disinfection shall be carried out for imported cold-chain foods and the environment of their processing, transportation, storage and sales places, as well as non-cold-chain items from countries with severe epidemic situation. Through the "first stop coding, one yard to the end, no code ban", the imported cold chain food can be traced, traced and the risk can be controlled. It is strictly forbidden to sell and use imported cold chain food without inspection and quarantine certificate of entry products, nucleic acid test report, preventive disinfection certificate and traceability code.

Market supervision departments at all levels should carry out full coverage of supervision and inspection of the farmer’s market, do a good job in the emergency conversion of epidemic prevention and control in the farmer’s market, improve the emergency response mechanism, and remind consumers to scan the traceability code of "Heilongjiang cold chain" when purchasing imported cold chain foods, and inquire about product information, nucleic acid detection and disinfection information to enhance their self-protection ability.

Guangzhou implements the supervision of controlling dust at the source: on-line measuring dust to protect Guangzhou Blue

  A waste gas treatment tower was installed on the roof of the production workshop of Panyu Yuanmai Jewelry Co., Ltd., located in Daluotang Jewelry Zone, Panyu.

  Keep the original heart, take the mission, find the gap and implement it

  Carry out in-depth education on the theme of "Do not forget your initiative mind, Remember Mission"

  There are more than 2,400 construction sites in Guangzhou, and dust from construction sites is one of the important causes of atmospheric particulate pollution, and it may be difficult to control dust pollution repeatedly. How to supervise it effectively for a long time is a difficult problem. At the same time, the general survey of pollution sources in Guangzhou has entered the stage of data summary and audit, which involves a wide range and a large amount of data. How to ensure the accuracy of the data is very important.

  Therefore, in combination with the theme education of "Do not forget your initiative mind, keep in mind the mission", the Guangzhou Municipal Bureau of Ecology and Environment runs through the whole process of the theme education, implementing source control, standardizing the management of construction sites, implementing the pollution source survey, finding out what the problem is and where the crux lies, sticking to the word "reform" throughout, persisting in the establishment of reform, and resolutely fighting the tough battles of pollution prevention and pollution source survey.

  Text/Guangzhou Daily All-Media Reporter Wang Chuhan and Du Juan

  Correspondent sui huanxuan

  Figure/Guangzhou Daily All-Media Reporter Zhuang Xiaolong

  Li hang Li Gai

  Inspection and supervision: set up full-time environmental protection personnel to supervise the construction site.

  The second phase of hengli town Resettlement Area in Nansha District is under intense construction. But different from people’s impression of dusty and disorderly, the construction site here is orderly: all the undeveloped land is covered with green dust-proof nets, and some land is afforested; Sprinklers are sprinkling water to reduce dust, and a 360-degree rotating spray head can be seen every 2.5 meters on the fence; The PM2.5 displayed on the screen of the 24-hour on-line dust detection system is about 25 μ g/m3. "Sprinklers will spray water regularly every two hours. spray head is basically open from 8 am to 6 pm, and fog cannons will also spray dust. In addition, the construction site is also equipped with 12 cleaning workers to clean the construction site and import and export roads. " The relevant person in charge of the project introduced.

  In addition to consciously equipping the construction site with dust suppression facilities and implementing dust suppression measures, Jiezhen also has full-time environmentalists who use Guangzhou Dust APP to supervise the construction site. Liu Chunke, a full-time environmental protection worker in hengli town, told reporters that the dust on the construction site is inspected every week, including whether the engineering information is perfect, whether the transport vehicle is cleaned and whether the residual mud is covered. During the inspection, it is found that the land is not covered with green nets, the land that has not been constructed for a long time is not afforested, the construction road is not hard-bottomed, and the vehicles are not cleaned.

  "In the process of routine inspection of the second phase project of hengli town resettlement area, it was found that there were problems of road dust emission and some exposed residual mud not covered." Liu Chunke said that he would take photos immediately after discovering the dust problem, and enter the problem into the Guangzhou Dust Supervision APP, and feed it back to the Nansha District Quality Supervision Station, the supervision unit of the construction site, and at the same time issue the Notice Letter on the Prevention and Control of Dust Pollution on the Construction Site to urge the construction unit to carry out rectification. After receiving the rectification notice, the construction unit immediately carried out rectification measures, arranged sprinklers to spray water immediately, and covered the exposed residual mud. "Now the awareness of dust pollution prevention and control in construction sites has also increased. Last year, the green net covering the land was in short supply, and the price has increased!"

  On-line monitoring: the air quality was optimized obviously from January to July.

  Dust is the main source of PM10 and PM2.5 in Guangzhou. In recent years, Guangzhou has vigorously promoted dust pollution control in construction sites, refined the "six hundred percent" requirements for dust pollution control, produced an atlas of guidance for green construction enclosure of construction projects, held on-site meetings, organized publicity training, promoted the installation of dust online monitoring equipment, strengthened law enforcement inspection, and increased notification and punishment. In view of the problem that dust pollution control in construction sites is easy to repeat and difficult to adhere to, since 2019, the regulatory authorities such as housing and construction have stepped up supervision, inspecting about 100 construction sites every day, urging the implementation of the "six hundred percent" requirements for dust pollution control, and at the same time using drones. Conduct inspections. Up to now, a total of 1080 online dust monitoring devices have been installed and networked.

  In addition, in 2018, the municipal ecological and environmental department developed and launched the Dust Supervision APP, organized town and street environmental protection personnel to inspect the construction site, and reported the problems to the regulatory authorities in real time for follow-up. The users of the APP include the Municipal Housing and Urban-Rural Development Bureau, the Transportation Bureau, the Water Affairs Bureau, the Urban Management Comprehensive Law Enforcement Bureau, the Ecological Environment Bureau, the Forestry and Landscape Bureau, the Planning and Natural Resources Bureau, the Guangzhou Port Authority and the quality and safety supervision stations of various construction projects.

  More than 2,400 construction sites in the city, regardless of the size, are all included in the Dust Supervision APP, which can be used to view and count the basic situation of construction projects. The supervision and inspection personnel of the ecological and environmental departments input the inspection and spot check information of the construction sites, and feed back the inspection and spot check information to the supervision units such as housing construction, water supply and transportation, and then the supervision units organize rectification and fill in the handling information, so as to implement the requirements of "establishing banks and reforming them" and form a multi-sectoral supervision mechanism for dust in Guangzhou. Since the beginning of this year, the city’s law enforcement officers have inspected 28,987 construction sites and 2,389 construction sites, and found that 1,304 "six hundred percent" problems have not been implemented, and all the problems found have been followed up and rectified.

  The control effect of dust is also intuitively reflected in the air. From January to July 2019, the comprehensive index of ambient air in Guangzhou decreased by 13.4% year-on-year, and the air quality improved; The air quality reached the standard for 193 days, an increase of 25 days. Among them, the average concentration of PM2.5 was 28 μ g/m3, down 22.2% year-on-year; The average concentration of PM10 was 47 μ g/m3, down 14.5% year-on-year.

  General survey of pollution sources: If you have any questions about filling in the form, you can ask the census taker.

  The once-in-a-decade national pollution source survey has now entered the stage of data summary and audit, which is a major national survey, involving a wide range and a large amount of data. How to ensure the accuracy of the data is very important.

  Guangzhou Panyu Yuanmai Jewelry Co., Ltd., located in Daluotang Jewelry Zone, Panyu, is a leading jewelry processing enterprise in Panyu District, mainly engaged in the processing of gold and silver jewelry and jewelry inlays. The relevant person in charge of the enterprise took out a checklist of dozens of pages and told the reporter: "Because there are differences in production technology and pollution control links, it is really unclear which links need to be filled in when filling out the form, how to fill them out, and some problems involving data unit conversion are also complicated. Fortunately, there are census takers and census instructors to help us fill out the form. "

  According to the relevant person in charge of the Municipal Bureau of Ecology and Environment, the general survey of pollution sources is not as simple as expected. Sometimes a company has to visit several times. "For example, it is found that the company is closed at the scene, but it is uncertain whether the company is temporarily closed or seasonally closed. It takes a few more walks to be sure. " In addition, the general survey of pollution sources involves not only communication, but also technical problems in the form filling. Take shoemaking as an example, one of the two processes needs to be selected, that is, drawing wires and gluing. When filling in the form, some enterprises may mistake the gluing in the drawing wire process for the gluing process, resulting in wrong selection or multiple selection. Because the emission of pollutants is estimated by coefficient method, different processes correspond to different coefficients. If the previous process is not filled in correctly, the results estimated by coefficient method will be quite different. "In view of these situations, not only enumerators guide enterprises to fill in the forms, but also census instructors will further review the data. In addition, we will compare the data with the existing data to ensure the accuracy of the final data."

  Pollution data: a map of pollution sources in the city will be drawn.

  The national pollution source survey is a major national survey conducted by the State Council in accordance with the Regulations on the National Pollution Source Survey, which is conducted once every ten years. From 2007 to 2010, the first national pollution source survey was carried out, and this is the second national pollution source survey. The census time is arranged from 2017 to 2019, which is mainly divided into four stages: preliminary preparation, inventory building, household survey and summary release.

  The relevant person in charge of the Municipal Bureau of Ecology and Environment said that in 2017, Guangzhou started the preparatory work for the general survey of pollution sources, and successfully completed the household survey task in 2018. At present, it has entered the stage of data summary review. After completing the data filling and entry system, Guangzhou was organized to carry out data auditing, on-site verification and data summary auditing in the household survey stage, and seriously carried out rectification and implementation according to the list of questions fed back by the national and provincial census offices.

  In the stage of household survey, Guangzhou organized and carried out the work of reporting and auditing by enterprises, on-site auditing by census takers, on-site rechecking by census instructors, and conducted two rounds of data auditing for key information census forms, feedback from experts and auditing of census systems, to check input data and recheck spatial information.

  Since January this year, two rounds of quality verification have been carried out, and industrial sources, large-scale livestock and poultry farms, centralized pollution control facilities, sewage outlets into rivers (seas), non-industrial source boilers, mobile sources, administrative villages and parks in 44 towns in 11 districts have been selected for on-site verification, and one census community in each district has been selected for pull-net verification.

  After the census and accounting work, Guangzhou immediately transferred to the data summary and audit work. In June, the Municipal Census Office issued the Operational Guidelines for the Data Auditing of the Second National Pollution Source Census in Guangzhou, sent technical teams to all districts to guide the data summarization and auditing, and organized four rounds of data summarization and auditing successively.

  From July to August, Guangzhou received a total of 16 issues of the list of suspected problems summarized and reviewed by the national and provincial census offices. The municipal census office immediately organized all districts to carry out verification work, seriously rectified the problem data, completed the systematic problem verification and rectification on time, and made notes on the verified problems one by one. In the next step, Guangzhou will continue to organize data summary and audit according to the requirements of the national and provincial census offices, so as to further improve the quality of census data and ensure compliance with relevant national requirements.

  "The national pollution source survey is a major national survey once every ten years, and it is the basic work of environmental protection. It is of great significance for accurately judging the current environmental situation, formulating and implementing targeted policies and plans for economic and social development and environmental protection, and improving environmental quality." According to the relevant person in charge of the Municipal Bureau of Ecology and Environment, in the era of big data, the data of pollution source census is also used to make pollution source maps, and relevant management systems are developed, so as to accurately monitor the pollution sources in the city. "The map can show the distribution and types of enterprises in 11 districts of the city, and a management system is developed through the data of pollution source census, so as to accurately monitor the pollution sources in the city."

  Guangzhou strengthens dust control supervision

  Innovative supervision means

  More than 2,400 construction sites in the city, regardless of the size, are all included in the dust supervision APP, which can be used to view and count the basic situation of construction projects;

  Up to now, a total of 1080 online dust monitoring devices have been installed and networked in the city.

  Carry out inspection and law enforcement

  Since the beginning of this year, the city’s law enforcement officers have inspected 28,987 construction sites and 2,389 construction sites, and found that 1,304 "six hundred percent" problems have not been implemented, and all the problems found have been followed up and rectified.

  Optimize air quality

  From January to July 2019, the comprehensive index of ambient air in Guangzhou decreased by 13.4% year-on-year, and the air quality improved; The air quality reached the standard for 193 days, an increase of 25 days.

  PM2.5 decreased by 22.2%

  mean concentration

  28 μ g/m3

  PM10 decreased by 14.5%

  mean concentration

  47 μ g/m3

  Grass-roots sound

  Wu Shuchao, a villager from Nansha hengli town

  There is less dust at home, so I can sleep well at night.

  My home is opposite the construction site. In the past, the dust generated by the construction site, as well as the noise of vehicles entering and leaving, piling and so on, will have some impact on daily life. But now the construction site will sprinkle water regularly, and basically no dust will be felt at home, and the construction site will stop working at 9: 30 every night, so it is more stable to sleep at night.

  Yuan Jianhui, a construction worker of Nansha hengli town Resettlement Area Phase II Project.

  The workers all feel that the working environment is better.

  Construction workers’ daily work, eating and rest are all on the construction site. Now there are not only sprinklers, spray head, fog guns and other dust suppression equipment on the construction site, but also cleaners to clean and control the dust well. The construction workers here feel that the working environment has improved, and the sprinkler operation can also play a certain role in cooling down!

  Lin Weishen, Polluter of Pollution Sources in Panyu District

  Only when the data is accurate can we do a good job of governance.

  The accuracy of the basic data of pollution source census is very important, and about 500 enterprises have been visited since they entered the household last year. In the filling of the census form, a data unit and a decimal point need to be treated strictly. Only by ensuring the accuracy of the data can we truly reflect the production and discharge of pollution sources in enterprises, so as to supervise and control pollution in enterprises more pertinently.

  It is even more essential to have a sense of responsibility and innovative thinking

  In recent years, the air quality in Guangzhou is getting better and better. In the circle of friends, "Guangzhou Blue" often dominates the screen; In the streets and lanes, wherever you go, you bring your own "blue sky and white clouds" background. For two consecutive years, the concentration of PM2.5 has reached the standard, and such an eye-catching achievement cannot be separated from the strong promotion of dust control.

  Construction site dust is one of the important causes of atmospheric particulate pollution, and there are problems that are easy to repeat and difficult to persist. For Guangzhou, the tight construction period and large number of projects under construction also make it more difficult to control dust pollution. However, there are always more ways than difficulties, and the key depends on whether the understanding is in place and whether the action is firm. This means that on the one hand, it is necessary to raise awareness, further enhance supervision consciousness, put the control of dust pollution in a prominent position, and achieve results. On the other hand, we should also innovate methods, make full use of new technologies and means, optimize processes and improve efficiency. For example, launch the dust supervision APP, organize town and street environmentalists to inspect the construction site, and report problems to the regulatory authorities in real time for follow-up; Promote the installation of dust online monitoring equipment and strengthen law enforcement inspection; Using drones to carry out inspections and improve supervision efficiency & HELIP; …

  Driven by a series of measures, the effect of dust supervision is "immediate". From January to July this year, Guangzhou’s air quality reached the standard for 193 days, an increase of 25 days year-on-year, and the concentration of atmospheric particulate matter related to dust showed a downward trend. The feelings of citizens are also intuitive. Many people say that the dust generated by the previous construction site, as well as the noise of vehicles entering and leaving, piling and so on, are annoying. At present, the construction site will be watered regularly, and the work will be finished on time when it arrives. The faster the building is built, the less and less impact it will have on life. It is understood that under the supervision of the regulatory authorities, many construction sites are equipped with sprinklers, spray head, fog guns and other dust suppression equipment. For managing dust pollution, everyone’s initiative and consciousness are constantly improving.

  In the final analysis, it is necessary to turn knowledge into action and goals into reality. It can be seen from the dust control that how to do a good job and achieve results requires a sense of responsibility and innovative thinking.

  (Guangzhou Daily commentator Mao Yuming)

Enhance "new vitality" online and return to "fireworks" offline —— Perspective of current consumer market

Xinhua News Agency, Beijing, June 20th Title: Enhancing "New Vitality" Online and Returning to "Fireworks" Offline —— Perspective of Current Consumer Market

Xinhua News Agency reporters Kong Xiangxin, Yang Na and Ning Ji.

Introduce policies to promote consumption in many places to boost consumer confidence; Merchants distribute gift packages of coupons to drive consumption vitality … Near the middle of the year, with the effective prevention and control of epidemic situation, all parts of China continue to make efforts to promote consumption. What are the positive changes in consumer demand? How much is consumer confidence boosted? Reporters went deep into markets, platforms and enterprises to find answers.

Enhance consumption power: combining short-term and medium-term policies to boost consumer confidence

At the beginning of June, Ms. Zhang, a citizen of Beijing, bought a refrigerator in Suning Store using Beijing’s green energy-saving coupons, saving 400 yuan. Since April, Beijing has launched a policy to promote green and energy-saving consumption for consumers all over Beijing, involving more than 20 kinds of electrical appliances.

Cultural tourism "spree", consumer vouchers "family bucket", green energy-saving consumer vouchers, and new energy vehicles "trade-in" … Recently, various localities have issued consumer vouchers in innovative forms and introduced policies to promote consumption, covering a wide range of categories.

In accordance with the central government’s series of arrangements for promoting stable economic development, in response to the impact of uncertainties such as the epidemic situation, various localities and departments have successively introduced measures to promote consumption, further focused on stabilizing the basic consumption, implemented relief support measures for poor industries such as catering, retail, tourism, civil aviation, highway, waterway and railway transportation, and accelerated the organic integration of online and offline consumption.

The reporter found out that many regions are introducing their own policies to promote consumption. Shanghai made it clear that 40,000 new non-operating bus licenses were added during the year; From May to August in Shenzhen, consumers will be subsidized by 15% of the sales price for purchasing eligible household appliances, with a cumulative maximum of 2,000 yuan per person; Guangdong, Fujian, Shandong and other places rely on their own endowments to support special industries such as prefabricated vegetables; Sichuan, Hainan, Fujian and other major tourist provinces have taken measures such as subsidies, coupons and theme activities to stimulate consumption vitality …

"Consumer vouchers have a significant boost to our sales." Song Huasong, president of CP Lotus Hunan Region, said, "Since June, our online sales have increased by over 250% year-on-year. The combination of government, platform and the brand’s own subsidies has made the brand’s online orders and passenger flow to the store have increased significantly. "

The experts interviewed said that at present, all localities and departments have introduced a new round of policies and measures to promote consumption, which combines short-term and medium-term policies, including the use of consumer vouchers and tax reduction subsidies to promote consumption compensation, focusing on the poor industries and enterprises that have been hit hard by the epidemic, and also using medium-and long-term policy measures to tap the potential of urban and rural consumption.

Active online and offline: promoting consumption in the middle of the year.

At the beginning of June, Zhang Man, an employee of Xtep, a domestic sports brand, looked at the constantly beating figures in the background of the store and knew that the backlog of new products in Shanghai warehouse should be saved. Zhang Man, who is in charge of the flagship store of Pinduoduo Platform, said that the number of store orders has increased by about three times in recent months compared with April and May. With the further recovery of logistics, the current express delivery volume of Shanghai Warehouse has recovered to about 90% before this year’s epidemic.

"Recently, the global consumption of the platform, including beauty, home appliances, clothing, maternal and child, agricultural and sideline products, has ushered in a significant rebound." The relevant person in charge of Pinduoduo said that many brands have accelerated the layout of flagship stores and continued to deepen cooperation with platforms.

The reporter learned that since the beginning of this year, many e-commerce platforms have introduced support policies for some small and medium-sized enterprises that have experienced pressure such as slowing sales and rising costs due to factors such as the epidemic.

JD.COM, together with a number of banks, launched preferential activities in 23 cities including Beijing, Shanghai, Shenzhen and Dalian, and distributed relevant coupons in Beijing, Shenzhen, Chengdu and Changsha.

Just after 0: 00 on the 19th, major consumers showed the "transcripts" of the "618" promotion activities: the accumulated order amount in JD.COM exceeded 379.3 billion yuan, a record high; Xiaomi’s omni-channel cumulative payment amount exceeded 18.7 billion yuan; The total live broadcast of e-commerce in Tik Tok was 40.45 million hours, and the scene of Tik Tok Mall drove sales to increase by 514% year-on-year …

Online consumption continues to be active, and offline "fireworks" are also returning. With the epidemic situation in Shanghai, Beijing and other places gradually stable and controllable, offline market players are gradually recovering.

A BYD 4s shop in Yizhuang, Beijing, has welcomed many consumers who choose to book cars. Chloe Wang, a sales consultant, said: "Recently, Beijing has introduced policies such as trade-in, which has increased the sales of new energy vehicles to a certain extent."

At present, the phased halving of vehicle purchase tax implemented by the state and the coordinated efforts of local policies such as "trade-in" have gradually activated the domestic demand for car purchase. According to the latest data from China Association of Automobile Manufacturers, domestic automobile production and sales increased by 59.7% and 57.6% respectively in May.

Demand gradually improves: strengthen confidence and continuously release consumption potential.

According to the data of the National Bureau of Statistics, the total retail sales of consumer goods in May decreased by 6.7% year-on-year, which was 4.4 percentage points narrower than that of the previous month. With a series of policies to promote consumption taking effect, the domestic market demand is gradually improving.

According to industry analysis, this year’s epidemic fluctuation has put pressure on the supply chain. The superposition of many policies and mid-year promotion activities have increased the consumer demand of residents, reflecting that the foundation of China’s consumption recovery is still there, which has enhanced the confidence of all walks of life in promoting consumption recovery.

"As early as May, I put the things I wanted to buy in the shopping cart. After studying and comparing the prices, I felt that it was very cost-effective to buy during the promotion period, and several purchases were even’ very profitable’." Ms. Hu from Beijing said, "I am used to shopping online now. Although the epidemic has had a certain impact, the consumption needs are still there."

Xu Zhengzhong, deputy director of the Department of Economics of the National School of Administration, believes that under the background of shrinking demand and expected weakening, although the total retail sales of consumer goods in China has declined to a certain extent, the long-term fundamentals of China’s consumer market have not changed. Especially after the epidemic, there is a replenishment period, and the consumer demand suppressed by the interruption of supply chain in the past can be compensated and satisfied to some extent.

Industry analysts pointed out that boosting consumption should take multiple measures and continue to advance. On the one hand, it is necessary to implement a number of policies from the central government to the local government to stabilize growth and employment, and accurately design and implement consumption-related measures according to local conditions to ensure the effect of stimulating consumption. On the other hand, enterprises should further strengthen the research and development of goods and services to provide consumers with more high-quality goods and services. In addition, ensuring the smooth supply chain is the basis for promoting consumption, especially online consumption. It is suggested to further promote the intelligent upgrading of the supply chain of the whole industry.

Double 11 observed: "Quiet" double 11, waiting for an inflection point.

On November 11th, this shopping festival, which started one month in advance, finally ushered in a "positive day". From consumers to businesses, the word that reporters hear the most is: quiet. That’s true. In previous years, shortly after the bell rang at 0: 00 on November 11th, "good news" frequently came from major electric merchants. However, this year, most platforms have chosen not to announce the specific transaction amount of double 11, and a series of late battle reports only tacitly indicate that "sales are still growing"-today’s double 11 seems to have really reached an inflection point.

From "Choose One from Two" to "Lowest Price"

Every year in double 11, it is accompanied by smoke, and this year is no exception.

This year, Tmall declared that "the lowest price of the whole network" is the core goal; Xin Lijun, CEO of JD.COM Retail, said: "It’s really cheap, close your eyes and buy"; Pinduoduo said, "It’s really cheap every day". The smell of smoke is full.

"It is easy to form vicious competition between merchants. I sell 16 pieces and he sells 15 pieces. The platform will definitely give traffic to the low price, but the problem is that the product quality is not necessarily the same, and bad money drives out good money." Some merchants said. In addition, what merchants are most afraid of is the exclusive "floor price agreement".

The so-called "floor price agreement" refers to the merchants.Promise to provide the lowest price of the whole domestic network for a specific platform during a specific promotion period.More than one e-commerce practitioner said that the "floor price agreement" is widespread, and the liquidated damages start from one million yuan.

This scene is a bit familiar. In 2015, on the eve of double 11, JD.COM reported to the State Administration of Market Supervision that Ali disturbed the order of the e-commerce market, saying that Ali asked the merchants on the platform not to participate in the promotion activities in JD.COM at the same time during their stay in double 11 that year, and a series called "Choose One from Two" began.

In 2018, Pinduoduo was also involved in the "two-choice" dispute. Pinduoduo accused Tmall of "choosing between two options" for merchants, which led to many merchants being forced to withdraw from activities in Pinduoduo, take off their goods and close their flagship stores. Tmall said that the "alternative" did not exist, and Pinduoduo was "touching porcelain".

"The e-commerce platform’ two choices one’ actually has no choice." A person in charge of a children’s wear brand said, "If you don’t choose a certain platform, you will be restricted by this platform immediately. We are targeting at brands that specialize in stocking online. This kind of blow is really great. But the fact is that only one platform can’t provide enough traffic. Of course, multi-platform development is the best. "

The turning point appeared in 2021. In that year, the State Administration of Market Supervision said that Alibaba Group abused its dominant position in the market and imposed a penalty of 18.228 billion yuan on the online retail platform service market in China.

When businessmen thought of faithful wife, they never thought that "choose one from two" would become a "bottom price agreement". Amid the smoke, some merchants have figured out an account: the daily operating profit is not high, but double 11 needs to hire anchors, buy traffic, and the platform’s pit fees … It is tantamount to "losing money and earning money". As a result, more and more businesses choose to "lie flat", and double 11 has gradually become the competition of head enterprises, and small and medium-sized businesses are increasingly marginalized.

Consumer: There is no answer to the "lowest price"

For consumers, double 11 is not only a choice between two, three, or even "multiple choices", because the "lowest price" also has a premise.

If you want the lowest price, you need to pay a deposit first and then enjoy the discount. Red envelopes, shopping vouchers and full reduction thresholds must meet the standards; Even the same product of the same merchant at the same time has different coupons, or whether it is a platform member, such as JD.COM Plus or Tmall 88VIP, or even different pages. For example, if you place an order through Taobao’s 10 billion subsidy page, the commodity prices may be different …

Therefore, for consumers, multi-platform price comparison is not enough. "Shuttling between major live broadcast rooms and switching back and forth between Tmall, JD.COM and Pinduoduo is my daily routine after work recently." Some consumers said.

There is also a criticized pre-sale mechanism: pay the deposit first, and then pay the final payment. In the eyes of consumers, each node needs to pay the time cost.In addition to waiting for the pre-sale, you must not forget the time of paying the final payment, otherwise the deposit will be difficult to return; Some consumers have found that the pre-sale price that they are waiting for is not the lowest price, and they feel "cheated".

"The wool is on the sheep. To put it bluntly, double 11 is a business after all. " Some merchants told reporters that the platform has to make money and the merchants have to make money. The thousand-layer "routine" is aimed at consumers’ wallets.

In 2009, Taobao tried "double 11" to create a shopping festival that has been popular for 15 years. Nowadays, double 11 comes earlier every year, but consumers are confused. How to buy the cheapest?

Double 11 needs "new connotation"

Do we still need double 11 today? The answer is still yes.

The 2023 double 11 Report released by Accenture, a consultancy, shows that with the recovery of consumption and the continuous release of consumption potential, China’s consumer market has a bright future. "double 11, as the largest online consumer node in the whole year, is undoubtedly a battleground for global consumer brands".

From the data point of view, as of the afternoon of November 11, Tmall had 402 brands with a turnover of over 100 million yuan, with a year-on-year growth rate of over 38,000 brands exceeding 100%; JD.COM said that the cumulative sales of about 300 brands have exceeded 100 million yuan, and a large number of brands and businesses still maintain a high-speed sales growth trend.

Accenture believes that for brand merchants, double 11 is no longer just a sales peak, but also a special operation node. Stimulating user interest, improving user experience and enhancing user stickiness have become more critical competitive factors. Therefore, brands and platforms should inject new connotations into double 11.

The new connotation of double 11 is obviously not the "lowest price", but the healthy development of the whole industry and the establishment of a positive consumption cycle of "high-quality and low-price goods supply, meeting consumer demand and making money for businesses".

"double 11 has entered a platform period and reached a turning point where everyone wants to seek some kind of change. The dispute over low prices is obviously meaningless. This industry war will ultimately serve the technological and ecological development of the entire e-commerce industry. " Cui Lili, executive director of the Institute of Electronic Commerce of Shanghai University of Finance and Economics, said that today, the digital economy has become a key track for enterprise growth. Double 11, as a key node of online consumption, should perhaps be transformed from a shopping carnival into a testing ground for innovation capability of major platforms.

Common cold Why do you take a lot of medicine and cough or not get better?

  Guangzhou Daily News (all-media reporter Weng Shuxian correspondent Yao Xue, Pan Yingyuan) The common cold is too common. At present, spring and summer alternate, sometimes it rains and sometimes it is sunny, and the damp heat is aggravated. If you are not careful, you will easily be "caught".

  There is no specific medicine for a cold, and it is also a self-limiting disease. Many people can get through it after a few days’ rest, but some people take a lot of medicine, which not only fails to alleviate, but is even more serious. The most common symptoms are fever and cough, and I can’t sleep well all night. What’s even worse is that this cough sometimes lasts for half a month, and the "hands and tails" are very long. Why is it so hard? Let’s listen to Dr. Nie Wenqiang, director of the Department of Traditional Chinese Medicine, Hong Min, the First Affiliated Hospital of Guangdong Pharmaceutical University.

  I believe that many people who suffer from colds have similar experiences: when symptoms appear, they find some medicine to take, which is effective for the first two days, but after two days, they start coughing frequently or even having a fever, but then taking medicine is not effective. Moreover, at first, I only coughed during the day, and there was a little more phlegm. Later, I took expectorant drugs and it didn’t work. I coughed even more at night. Why do people get over a cold without taking medicine for a few days, but you take a lot of medicine and cough is not good?

  In fact, others get better quickly because his body adjusts in time to "stop loss quickly" at the beginning of a cold, and the reason why you "have a long hand and tail" is to drag the disease from "exterior syndrome to interior syndrome" and completely go through the following three stages:

  first stage

  At the beginning of a cold, help "positive" and "stop loss quickly"

  Traditional Chinese medicine believes that exogenous symptoms in the early stage of a cold, such as headache, aversion to cold, stuffy nose and runny nose, heavy or sore body, fever, etc., are mainly caused by the lack of healthy qi. For example, when the resistance drops, exogenous pathogens will invade the human body under the influence of factors such as sudden climate change, abnormal cold and heat, and excessive fatigue.

  In fact, the human body has a self-regulation mechanism. People with mild symptoms in the early stage of a cold and good health can gradually relieve symptoms by traditional methods, such as drinking some onion and black bean soup, or drinking more hot water, sweating and taking more rest to protect the "healthy qi" in the body, and can heal themselves without taking medicine.

  Onion and black bean soup:

  Take 3 inches of scallion and 30 grams of fermented soybean, and decoct the soup twice;

  For patients with slightly severe symptoms, 10 grams of Ramulus Cinnamomi and 15 grams of Gardenia can be added, and the decoction can be taken twice;

  For patients with slight cough, dry throat and itchy throat, 12 grams of cassia twig and 10 grams of almond can be decocted and taken twice.

  Special reminder: the above is the dosage for adults, and children should reduce it as appropriate.

  If the symptoms are more serious, it is necessary to use more pungent and warm prescriptions, such as Mahuang Decoction, Guizhi Decoction and Gegen Decoction in classic prescriptions.

  stage Ⅱ

  From the outside to the inside, the immune "army" can’t stand it.

  In the early stage of a cold, those who can "stop the loss" in time will heal themselves in a week or so, but often many people have not improved for a week and dragged them into the second stage — — The disease "goes from the outside to the inside", and the immune "army" in the body is losing ground, and even starts to have a fever and cough.

  People with chronic pharyngitis, in particular, are more likely to lead to acute attacks of chronic diseases. The "cold and dampness" that was originally lurking in the body and did not dare to act rashly emerged at this time, cooperating with the cold virus and attacking the body together.

  From the perspective of Chinese medicine, the common cold cough is the result of cold virus and cold and dampness in the body. The treatment principle of traditional Chinese medicine is to comprehensively evaluate and treat according to syndrome differentiation by combining everyone’s physique, medical history, predisposing factors and course of disease.

  The third stage

  Cough getting worse? It hurts to take medicine indiscriminately

  To deal with the common cold, many people will buy their own medicine "autonomy". In fact, patients who are not studying medicine generally don’t understand the syndrome differentiation of diseases, and they lack syndrome differentiation when buying their own medicine, so they may take the wrong medicine.

  Many people get worse and have a longer course of disease because of taking drugs indiscriminately. For example, in many cold patients with yellow phlegm and sore throat, TCM syndrome differentiation may be "cold-heat mixed syndrome". If you take a large amount of heat-clearing antidote, the inflammation will be eliminated, but the "righteousness" will also be damaged. In the face of the invasion of cold virus, it will become chronic cough and asthma for a long time.

  People with "cold and heat mixed syndrome" are often "deficiency in the interior" accompanied by heat syndrome. If you just take heat-clearing drugs blindly, you will not only be unable to get rid of "cold and dampness", but also can’t make up for righteousness. If you use a lot of heat-clearing and antidote, it will hurt "righteousness". Therefore, at this stage, it is necessary to help "righteousness" while moderately clearing away heat.

  Hong Min reminded that especially patients who are prone to cough and asthma repeatedly at ordinary times are mostly accompanied by deficiency in the interior (lack of healthy qi), so don’t eat proprietary Chinese medicines without authorization.

  People who are usually weak, easy to sweat and have low immunity and easy to catch a cold, can try Huangqi Jianzhong decoction in flu season or when the weather is changeable to help replenish qi and consolidate exterior.

  Huangqi Jianzhong decoction

  Formula: 10g of Astragalus membranaceus, 3g of Cinnamomum cassia twig, 6g of Radix Paeoniae Alba, 3g of Radix Glycyrrhizae Preparata, 3g of Radix Saposhnikoviae, 3g of red dates and 6g of ginger.

  Usage: decoct soup once a day, and add about 10ml of honey when taking it.

  However, not everyone is suitable for using this preventive prescription. It is recommended to consult a doctor first and make a clear diagnosis before deciding whether to take it.

Changan Automobile used IoTDB to build a 150 million time series vehicle condition data processing scheme, and the query was stable to achieve millisecond return.

This article was interviewed from:Chang’anautomobile

1. Changan Automobile Business Scenario

Chongqing Changan Automobile Co., Ltd. is one of the four groups of China Automobile. It is an automobile company that develops, manufactures and sells a full range of passenger cars and commercial vehicles. Its main products include a full range of passenger cars, small commercial vehicles, light trucks, minivans and large and medium-sized buses, and a full range of engines. Changan Automobile always takes "leading automobile civilization and benefiting human life" as its mission, takes customers as its center and products as its main line, continuously provides high-quality products and services, and strives to promote the third venture-innovative business plan, transform itself into an intelligent low-carbon travel technology company, and strive to achieve world-renowned automobile enterprises.

At present, digital technology has deeply reconstructed the automobile. The automobile has gradually evolved from a mechanical product equipped with electronic functions to an electronic product equipped with mechanical functions. The integration of cloud data and AI technology has gradually turned the automobile into a large intelligent mobile terminal, data acquisition carrier, energy storage unit and a mobile multifunctional space. Generally speaking, the smart car has gradually transformed into a wheeled mobile robot with multi-functional space. In this context, the national policy strongly encourages the development of intelligent vehicles and self-driving driven by Industry-University-Research, and the domestic head and new power OEMs gradually take intelligent networked vehicles or self-driving direction as their core business.

Changan Automobile focuses on the development of intelligent vehicles, and its application panorama includes intelligent vehicle control (remote control analysis), intelligent cockpit (vehicle burial point, vehicle user behavior analysis),IoT Data access (access detection, vehicle activation monitoring) and IoT vehicle condition management (vehicle condition monitoring, power research, vehicle networking big screen), realizing business display including eye-catching system, vehicle remote diagnosis and remote early warning system, remote debugging system, etc.

In order to realize the construction of intelligent vehicles, Changan Automobile has built an intelligent vehicle data platform. This big data processing platform is divided into five layers: data access layer, data storage layer, resource scheduling layer, computing engine layer and business presentation layer. now IoTDB It is mainly used in the data storage layer to cope with the massive Internet of Vehicles.time series dataManagement.

The industrial scene of realizing intelligent automobile direction involves a large number of time series data acquisition of vehicle equipment and sensor layer, which is very important for time seriesData solutionThe perfection and efficiency of the system pose a great challenge. Changan Automobile’s current time series data solution has obvious limitations, so we hope to find a better solution for writing, storing, querying and analyzing the time series data in the field of intelligent automobiles.

Based on the characteristics and advantages of IoTDB time series database, Changan Automobile chose IoTDB as the time series data processing scheme of mass intelligent networked vehicles, which realized flexible expansion of mass data writing and storage, effectively improved query performance and reduced equipment and operation and maintenance costs.

2. Pain points of business requirements

210 million data measuring points, with over 10 million new data points per second.

Changan Automobile, as one of the four major automobile groups in China, has a huge business volume, and it needs to deal with a large number of vehicles and data. At present, Changan Automobile’s networked vehicle mass vehicle condition time series data management system has collected about 570,000 vehicles on the network, with a total of 150 million data measuring points and more than 10 million data points added every second. Therefore, Changan Automobile has high requirements for real-time writing, compression and storage of time series database under this data volume.

2.2 High-speed signal acquisition frequency is high

The vehicle acquisition signals of Changan Automobile can be divided into high-speed signals and conventional signals. High-speed signals need to be acquired in milliseconds, and conventional signals need to be acquired in 3-4 seconds. Changan Automobile’s time series data solution should be able to support these two different acquisition frequencies at the same time, and ensure the continuous operation of real-time low-delay acquisition of high-speed signals.

2.3 Low latency data query

The vehicle data query scenario of Changan Automobile mainly includes the effective query of multiple time series of bicycles and the query of the newest point of the full time series of bicycles, that is, the classic real-time and off-line vehicle condition/historical vehicle condition query scenario in the vehicle networking scenario. Changan Automobile’s time series data solution needs to effectively support real-time real-time query and query with a large amount of stored historical data with low delay.

Based on the previous time series data solution of Changan Automobile, a vehicle condition data entered HBase If you want to do analysis later, you need to completely unload the incremental data from HBase, and this batch of range reading process takes a long time. For example, if HBase wants to do offline processing of yesterday’s data, it needs to unload the operational data and put it into Hadoop for analysis this morning. In addition, with the increase of business volume, it takes longer and longer to use HBase for batch reading, which is not suitable for the rapidly expanding data volume scene.

2.4 High cost and maintenance difficulty

Changan Automobile initially adopted HBase as the solution of time series data management, but faced with tens of millions of data measuring points per second, HBase’s cluster data writing was undertaken by 25 data nodes, so many data nodes directly led to the high maintenance difficulty and cost of the system.

3. reasons for selecting IoTDB

3.1 The data structure ensures high scalability, low cost and high stability.

In view of the huge existing data volume and new data volume processing requirements of Changan Automobile, IoTDB’s exclusive native time series model of the Internet of Things stores time series data in layers of devices, measuring points/sensors. With the continuous increase of data volume, it only needs to directly expand the hardware equipment of the query node without interrupting the normal operation of the system, which can achieve second-level expansion and effectively reduce the management and operation costs.

3.2 to achieve tens of millions of writing speed

In view of Changan Automobile’s demand for frequent writing of time series data, IoTDB can write tens of millions of data points per second and handle multi-device billion-level data points, and the writing rate does not decrease with the increase of data volume, maintaining a stable high-speed level.

3.3 Support valid details and latest value query.

Changan Automobile will use IoTDB for detailed query of massive networked vehicle condition data in the scene of vehicle fault alarm. IoTDB adopts a storage architecture that combines the time stamps of data points from below the root node with multi-level storage paths, so that the time series data of different dimensions can be effectively classified and stored, and then the time series data in IoTDB can be determined quickly and uniquely during the query, so that the query efficiency can still be maintained under the condition of using detailed query.

3.4 Improve the batch reading rate and achieve real-time analysis.

In order to meet the demand of Changan Automobile for fast batch reading of data before data analysis, IoTDB can directly synchronize the underlying data files of IoTDB because of its time index, and use the seamless integration of IoTDB and other big data systems to directly analyze the stored file TsFile in real time with Spark engine, which reduces the number of exported copies required for data analysis and improves the analysis and calculation efficiency compared with the original scheme.

3.5 Timely operation and maintenance, and active verification

Changan Automobile Project believes that when the business scenario brings new challenges to the time series data solution, the efficiency and thinking of dealing with the problem is very important. The team behind an excellent time series data solution needs to be able to solve the problem quickly and make the database cover the performance improvement and rich functions required by the business scenario. When Changan Automobile encounters problems in the production environment, the R&D team of IoTDB will quickly coordinate with relevant R&D resources to help. As a team with more than ten years’ experience in researching and serving industrial users, the team members are particularly willing to use IoTDB to verify the ecological environment in the industrial Internet scene, so that the success of the project and the maturity of the product can achieve mutual benefit and win-win. Changan automobile project expressed its gratitude to the IoTDB development team.

It can be seen that the technical advantages of IoTDB can effectively solve the business pain point of Changan Automobile’s current management of time series data, so Changan Automobile chose IoTDB to build the data storage layer of Changan Smart Car Data Platform. This paper introduces and analyzes the solution architecture, time series model structure setting and query performance effect of large-scale time series data management built by Changan Automobile based on IoTDB.

4. Solution architecture

The Internet of Vehicles is a typical Internet of Things scenario. The main data of the Internet of Things scene is time series data, and the whole life cycle of time series data is divided into six stages: collection, caching, processing, storage, query analysis and visualization application.

In the scene of car networking in Chang ‘an, devices and sensors such as Tbox and THU are used to collect car networking data (such as EFI data of engines, rotational speed, vehicle speed, etc.). After the data goes to the cloud, the message is ingested based on the private TCP protocol of Changan Automobile and the gateway written based on Netty. After entering the TU-GW application of K8s through CLB, the message is parsed. The message is parsed and sent to the message queue, and the time sequence messages required by different services are distributed to different storage terminals. After being written into the storage engine, Changan Automobile TSP business system and APP will query the time series data according to the latest data and historical vehicle conditions.

At present, the architecture of large-scale time series data management of Changan Automobile is divided into 1.0 and 2.0 versions. In version 1.0, the time series storage engine mainly used for car condition scenes is HBase, which realizes the writing of historical car condition data. Due to the huge volume of historical data, 25 HBase data nodes need to write cluster data. At the same time, version 1.0 of HBase cluster is configured with 10 Region Server. Because the storage architecture of HBase cannot independently support the latest vehicle condition query, the latest vehicle condition query needs to be implemented based on Redis.

The architecture of version 2.0 adopts the architecture of writing data into IoTDB through Kafka. The test scenario adopts a single machine with high IO, that is, a cluster configuration with large memory (about 384 g) and full SSD (about 50 T). After the good data schema design of IoTDB, one IoTDB machine replaced the writing function of 25 HBase nodes, and successfully maintained high stability for more than one year. At present, the test data volume is about 1.5 million pieces of data per second, and one time series data involves 16-17 measuring points on average, which stably supports the overall writing data volume of about ten thousand levels.

At the same time, the powerful data query capability of IoTDB enables the version 2.0 based on IoTDB to realize a set of scenarios in which the engine supports the query of bicycle time range (real-time query) and the query of the newest point of bicycle full time series (latest vehicle condition query), and can stably achieve the millisecond return of the results of the two types of queries.

With the improvement of writing and querying ability, the time series data management architecture based on IoTDB greatly reduces the complexity of the original HBase+Redis scheme, and increases the volume of devices and data accessible to IoTDB. At present, Changan Automobile uses about 570,000 IoTDB stand-alone access devices, and the custody time series is about 150 million.

5. Time series model and query application

At present, in the design of the four-level node timing model of the root node, service name, equipment layer and sensor layer of IoTDB, the equipment layer of Changan Automobile adopts the TUID of TBOX, that is, the equipment ID as the third-level node; In the sensor/measuring point layer, except for the signal name, the CANID is connected with an underline as the fourth level node. The reason for the design of this storage structure is that it is convenient to use the select last * from root.CANID command supported by IoTDB to query all the data values of bicycles under a certain CANID, so that IoTDB can simultaneously realize the main query scenario of Changan Automobile: the combined query of real-time vehicle condition and historical vehicle condition.

With the support of this data structure, Changan Automobile uses the following statements to run common query scenarios:

1. Query the time range of a single device

The SQL statement is as follows:

Select canid _ signal from root. can _ condition. tuid where time > t1 and time6. Future prospect.

Since 2020, Changan Automobile and IoTDB have cooperated stably for 2 years, and a stable and effective intelligent networked vehicle remote monitoring system has been built. Because the intelligent networked automobile business is in the initial stage of explosion, it is foreseeable that the number and density of vehicles collected in the vehicle networking scene will greatly expand in the future, and the amount of time series data will also increase exponentially. Big source data is still the main problem that the vehicle networking system will face.

` In the future, Changan Automobile and IoTDB will work together to further expand the volume of vehicle data access, enrich the related applications and functions of IoTDB in vehicle networking scenarios, and realize effective management of more vehicle networking business time series data.

(promotion)

Braille publishing house received CCTV audio-visual copyright.

  A few days ago, Ma Runsheng, assistant to the president of China International Television Corporation and president of China Radio, Film and Television Program Trading Center, and Zhang Wei, president of China Braille Publishing House signed contracts on behalf of both parties, and China Braille Publishing House obtained 60 kinds of copyright of barrier-free programs authorized by CCTV; 100 kinds of excellent programs for browsing and deep processing of professional websites for the disabled; There are 100 kinds of finished audio-visual products of film and television programs, with a total of 6,000 works (episodes) and 200,000 minutes.

  This is the first time that CCTV has authorized the excellent film and television resources for many years to special industries on a large scale and systematically. China Braille Publishing House will deeply process the authorized programs without barriers, and distribute the finished programs and the audio-visual products through special and effective channels such as the Internet and local disabled persons’ federations, so that the disabled can enjoy CCTV’s well-known audio-visual resources as soon as possible.

  (Huang Sheng)


Be 100% good! "My Extraordinary Parents" Kara Wai was affirmed.


Special feature of 1905 film network After 60 years old, I didn’t have a rest, but I was busier. My Extraordinary Parents and Look at a BridgeMe through the darknessI love you! "Save the suspect"… … One new play after another.


Among them, "My Extraordinary Parents" was first released, and Kara Wai played a blind mother in the film. In order to play the role well, she "experienced" it from the inside out.


After the film was released, many viewers praised Kara Wai’s good acting skills. The affirmation of the best actress in the three Hong Kong film awards has already proved Kara Wai’s strength. She has never slackened her efforts in every performance and always strives for perfection.In Kara Wai’s words, every role should be 100% dedicated, and every shot should be 100% good.



01.Play the blind, and make great efforts for both spirit and form.


My Extraordinary Parents, adapted from the director’s true story, tells the family story of a pair of blind parents raising their daughter with normal vision.


Kara Wai, who plays the blind mother, has made great efforts in shaping her appearance and manner.She keeps training to control her eyes, imitating the state that the eyes of the blind keep turning and their eyes are distracted. "I have practiced it, and I can go out and enter. Every time I shoot, I adjust my eyes to certain positions and spend a lot of hard work."



In addition to shaping the appearance, Kara Wai also asked an ophthalmologist to take a pair of copper contact lenses, put them on and carefully ponder the mentality of the blind. "It’s really the same as a blind person. When all the light is completely blocked, you lose your way, and then you can really play a blind person. What is her heart and what kind of dark fear she faces?"


Kara Wai said that every time she knows a role in advance, she will do all her homework well, and when she starts work, she will soon be able to enter the role.



In the movie, the emotional entanglement between mother and daughter also made Kara Wai feel the same way. Kara Wai has replaced many experiences and understanding of the relationship between her and her mother in the past. "When my daughter is rebellious, she can’t get along with her point of view, but they can’t be separated from each other and need each other, but this need sometimes hurts each other. This is the way I used when I played with Qianyu."



"I have to be 100% good in every shot until now." Kara Wai said that the principle of her acting is that if she gets paid, she must do it well, and at the same time, she must respect the actor’s profession. "Every shot should stay forever. If I don’t shoot a shot well, I will miss it for a long time."



02."I’m so strong, I’m afraid Jiang Lang will run out of talent."


Kara Wai, who was born as an action actor, got up from the bottom and struggled all the way to this day in fighting with blood and injuries again and again, and achieved many achievements.


Kara Wai had a hard childhood. At the age of three or four, he peddled with his family in the streets of Wan Chai. As a teenager, he worked as a dancer in a nightclub. Later, he was dug up by the director and made the film Legend of the Condor Heroes as Mu Nianci. Since then, he has entered the film industry and changed his life.


Kara Wai has the personality of a wild child since she was a child, and she has the experience of dancing on the stage, so she was not timid when she made a movie for the first time.


The first scene of The Legend of the Condor Heroes was a contest to get married, and Kara Wai was taught to play opera directly on the spot. The confidence and elan of the newborn calf that was not afraid of tigers made the hero alexander fu mistakenly think that she had been filming for several years.



The movie dream was planted when Kara Wai was young. Like many children at that time, she often sneaked into the cinema to watch movies. The first movie she saw was yes, and her awe of movies and performances was born from then on.


Mu Nianci became famous in World War I, and Kara Wai successfully entered Shaw Pictures as a martial arts actor and studied under the direction. At the age of 22, she won the Best Actress Award in the first Hong Kong Film Awards. In her view, the first Golden Awards trophy was won entirely by fighting and relying on life and health.



"You ask me how many injuries, I don’t know. You ask me where I am not injured, and I can tell you that I am not. " When Shaw made a martial arts film, Kara Wai was viciously punched in the stomach by an opposite actor for more than 40 times. At that time, she had only one thought: "If you didn’t kill me, I would have a chance in the future. I want to cover you up in this scene today. "


Therefore, when Kara Wai won the prize for the first time, all she thought about was bitterness. "I play every day and get hurt every day. Even if I have surgery, the thread has not been removed a few days later, and I still have to shoot with my stomach covered." Even if she became more and more popular later, she would feel a little unbalanced when she saw other actors shooting fashion shows, beautiful and comfortable.


But Kara Wai is an indomitable person by nature. "When you are chosen for the role of martial arts and you need it again, you can only do it best. I must stand in the first place to survive. "



Kara Wai’s perseverance, also have been crushed. At the end of 1990s, with the decline of martial arts films and the change of movie environment from generation to generation, Kara Wai’s career fell into a trough, and she suffered from depression. In the worst case, she even swallowed sleeping pills and gave up herself. Fortunately, with the help of relatives and friends, she rallied.


In 2010, 50-year-old Kara Wai won the Best Actress Award at the Hong Kong Film Awards for the second time for "Devil". I have experienced all kinds of twists and turns from being a popular female star to being neglected and making a comeback. The arrival of this award is of great significance to her and has the deepest feelings.


Kara Wai recalled, "I hold this award, and I said that nothing can be changed, because it was because I suffered a lot of grievances, paid a lot of efforts, and had a chance given to me by many friends and God, so this award is more important than anything."



Later, Kara Wai won the Golden Award for Best Actress for the third time. She plays an elderly person who lives alone with Alzheimer’s disease. Kara Wai’s mother died because of this disease. She wants to use this film to commemorate her mother and make more people pay attention to Alzheimer’s disease.


Kara Wai cares about the disadvantaged groups, and this time he took on My Extraordinary Parents, hoping to use this positive film to appeal to the public to respect and care for the visually impaired.



Kara Wai doesn’t act in action movies now, and she will also worry about her bad state and poor performance when acting in literary plays. "The more I am so strong, the less I can perform, the less I let others know, the more I force myself, and I really can’t perform. The director is sorry to give me two minutes, and I will walk away again. The whole mood will be adjusted. It is psychological pressure to throw away all the feeling of smoking and come back."


Nowadays, Kara Wai likes to cooperate with new directors, trying her best to support young talents, and even working with them at a reduced salary. This is the case with My Extraordinary Parents, and the sincerity of the director made her determined to take over.



Every time acting, Kara Wai wants to find a new way to perform. "How can I act when I have met several bottlenecks?"? I can’t find it. I can only play it in the old way, so I can’t open it. The new directors have new ideas, and they can bring me many new things and new ways of interpretation. "


"I am afraid that people will see that I am exhausted in Jiang Lang." Kara Wai didn’t stop, she was still fighting and rushing.