Mu Changchun, director of the digital currency Research Institute of the Central Bank: The central bank must speed up its pace and provide digital currency services

Reporter | Si Linwei
According to the 21st Financial Report, at the Innovation Summit of the Bank for International Settlements (BIS) held on March 25th, Mu Changchun, director of the digital currency Research Institute of the People’s Bank of China, said that in order to provide another backup or backup for the retail payment system, the central bank must speed up the pace and provide digital currency services.
In this meeting, many central bankers around the world, including Federal Reserve Chairman Powell, German central bank governor Weidemann, European Central Bank president Lagarde, current Bank of England governor Bailey and former Bank of England governor Carney, attended the meeting and delivered speeches. Studying the Central Bank digital currency (CBDC) is the core topic of this meeting.
As one of the top spokesmen of the US dollar system, the current Federal Reserve Chairman Powell is not enthusiastic about the attitude of the central bank digital currency. At the meeting of the Bank for International Settlements (BIS), he said: "We don’t have to rush the central bank digital currency, and the Federal Reserve doesn’t need to be the first central bank to launch the digital currency."
In contrast, China’s digital RMB has made rapid progress. On March 25th, as the second batch of pilot cities of digital RMB in China, some banks in Changsha have started to launch related businesses of digital RMB. At present, Changsha has realized a variety of scenarios to support digital RMB transactions, including public payment such as gas, and some consumption scenarios such as supermarkets, restaurants, long-distance passenger transport, gas stations, and postal express delivery and tourism.
Among the major central banks in the world, the layout of digital currency, the Bank of China, is very forward-looking and has made the fastest progress. Since 2014, the People’s Bank of China has set up a special team to conduct special research on digital currency’s distribution framework, key technologies, distribution and circulation environment and related international experience. By the end of August 2020, there were more than 6,700 ten-point scenes in China, with a total transaction volume of over 1.1 billion yuan and more than 3.12 million transactions.
With the continuous opening up of a batch of pilot cities, we can feel that the digital RMB is at the ready-to-go node, but the official launch time of the digital RMB is not clear at present. In May, 2020, Yi Gang, governor of the People’s Bank of China, said that the current pilot test of digital RMB is just routine work in the research and development process, which does not mean that digital RMB is officially launched, and there is no timetable for its official launch.
Digital RMB will coexist with electronic payment, but it will be more anonymous.
Regarding the technical features of digital RMB, Mu Changchun, director of digital currency Research Institute of the Bank of China, said at the China Development Forum on March 20th that in the foreseeable future, paper money, electronic payment and digital RMB will coexist. At the same time, the digital RMB is loosely coupled with the bank account, which can technically realize small anonymity. The protection of users’ privacy by digital RMB is the highest among the existing payment tools.
Mu Changchun said that the current payment tools, whether bank cards, WeChat or Alipay, are all tied to the bank account system, and the bank account is opened in real-name registration system, which cannot satisfy the anonymous appeal. Digital RMB is loosely coupled with bank account, which can technically realize small anonymity.
"The first meaning of controllable anonymity is anonymity, which should meet the needs of reasonable anonymous payment and privacy protection. The digital RMB wallet is designed by classification, and different levels of digital wallets are opened according to the degree of KYC (fully understanding your customers) to meet the different payment needs of the public. Among them, the wallet with the weakest KYC strength is an anonymous wallet, which can be opened only by using the mobile phone number. The balance and daily transaction limit of this kind of wallet are also the lowest, which can only meet the daily small payment needs. If you want to make a large payment, you need to upgrade your wallet, and the wallet balance and payment limit will increase with the strength of KYC. The consideration of this design is to meet the public’s reasonable privacy protection needs on the one hand, and to prevent the risk of large suspicious transactions on the other hand. " Mu Changchun explained.
Digital RMB still needs legal protection.
In addition to the technical pilot, the progress of digital RMB at the legal level has also attracted attention.
At present, regarding the definition of digital RMB, Mu Changchun, director of the digital currency Research Institute of the Central Bank, once explained that digital RMB is legal tender in digital form issued by the People’s Bank of China, operated by designated operating institutions and exchanged for the public. Based on the generalized account system, it supports the loose coupling function of bank accounts, is equivalent to paper money coins, has value characteristics and compensation, and supports controllable anonymity. The concept of digital RMB has two key points. One is that digital RMB is legal tender in digital form; Another point is that it is equivalent to paper money and coins. The digital RMB is mainly located in M0, that is, cash and coins in circulation.
On October 24th, 2020, the People’s Bank of China Law and the Draft for Comment, which were solicited by the People’s Bank of China, intended to expand the scope of RMB to include the digital RMB in the legal tender (Article 19).
In this regard, the special commentator of Phoenix Satellite TV and lawyer Jin Yan of Guangdong Oriental Jinyuan Law Firm told Interface News that there is only a short distance from the legal digital currency to achieve wide application, but there is still a long way to go in terms of laws and regulations. Before the large-scale spread of digital currency, it is inevitable to amend the law. But before that, digital currency needs to go through a lot of checks on legality. In order to circulate on a large scale, we need to solve the problem of its legal basis. "According to my judgment, in the revision of laws and legislation related to digital currency, the relevant departments will also follow the principle of’ equal treatment with real money’." Lawyer Jin Yan said.
First of all, we should solve the problem of correcting the name. For example, the first paragraph of Article 4 of the People’s Bank Law of China authorizes the People’s Bank of China to issue RMB on behalf of the country, manage the circulation of RMB, and exercise the right of currency issuance. Article 2 of the RMB Management Regulations states that the currency issued by the central bank according to law includes paper money and coins, and there is no legal tender in digital form. This means that according to the current law, there are only two physical forms of RMB: paper money and coins, excluding the intangible digital currency. Furthermore, there is no legal support for digital currency’s legal compensation. Therefore, it is urgent for digital currency to be granted legal status, otherwise it will be difficult to implement.
In addition, the issue of inheritance in the Civil Code implemented this year also involves legal digital currency. The inheritance part of the Civil Code has adjusted the scope of inheritable heritage, changing the "citizens’ income, houses, trees, cultural relics and copyrights" stipulated in the previous inheritance law into a "package" formulation-heritage is the personal legal property left by a natural person when he dies. Lawyer Jin Yan said that this general form of legislation made digital currency also classified as inheritable property.
The internationalization of digital RMB has been laid out in advance.
On January 16th, 2021, according to public reports, SWIFT, together with China People’s Bank Clearing Center, Cross-border Inter-bank Payment and Clearing Co., Ltd., digital currency Institute of the Central Bank and China Payment and Clearing Association, established Financial Gateway Information Service Co., Ltd., with Mu Changchun, director of digital currency Institute of the Central Bank, as one of the directors.
The shareholders of Financial Gateway Information Service Co., Ltd. are SWIFT, Clearing Center of China People’s Bank, Cross-border Inter-bank Payment and Clearing Co., Ltd., China Payment and Clearing Association and digital currency Research Institute of China People’s Bank in descending order.
SWIFT is a non-profit cooperative organization among international banks, headquartered in Brussels, Belgium, which mainly provides financial message network services for international financial business. Banks and other financial institutions complete financial transactions by exchanging messages with their peers through SWIFT network. It is the most important institution for international cross-border payment and settlement business at present.
On March 16th, according to the Cailian News Agency, Raymond Yue, President of the Hong Kong Monetary Authority, said that the HKMA and the digital currency Institute of the People’s Bank of China are studying the technical test of using digital RMB for cross-border payment and making corresponding technical preparations.
Reporting/feedback

Aspartame is controversial about cancer. How can I eat it if I want to reduce sugar?

  Recently, "Aspartame Carcinogenic" was listed in Weibo Hot Search. According to media reports, aspartame will be listed as "a substance that may cause cancer to human beings" by the International Agency for Research on Cancer under the World Health Organization in July this year. Aspartame is widely used in China, and it can be added to 12 kinds of food. People can’t help asking, can diet drinks still be drunk? What else can you eat with healthy sugar reduction?

  "In fact, aspartame, as a common synthetic sweetener, has been controversial for a long time and has been questioned about the possible neurotoxicity and cancer risk. However, years of scientific research have not really determined the carcinogenicity of aspartame. " Liu Xuemei, a clinical nutritionist in the Nutrition Department of the First Affiliated Hospital of Tsinghua University, said in an interview with Workers Daily: "We don’t have to panic. The rating of carcinogens is not equal to their risk. Many common food ingredients are listed as carcinogens, but we can still consume normally."

  Which foods contain aspartame?

  At present, according to the probability of cancer, the international agency for research on cancer divides the carcinogenic factors into five categories: category 1, which has confirmed carcinogenicity to human beings; Class 2A is likely to be carcinogenic to humans; Category 2B, which may cause cancer to human beings; Category 3, it is still uncertain whether it is carcinogenic to human body; Category 4, basically no carcinogenic effect on human body. According to the information disclosed by the media, aspartame will be classified as category 2B, which may cause cancer to human beings.

  As a sugar substitute, aspartame is very sweet, about 200 times as sweet as sucrose, and its calorie is only 200~300 times as high as sucrose. Because of its low calorie and high popularity, aspartame is widely used in food fields such as beverages.

  China has approved that aspartame can be used in cola, ice cream, ice cream, candied fruit, jam, bread, cakes, canned aquatic products, vinegar, salad dressing, concentrated soup, carbonated drinks, flavored fermented milk and many other foods. The most common is sugar-free carbonated drinks, and aspartame is also widely used in sugar-free chewing gum and sugar-free mints.

  Can you still drink sugar-free drinks?

  When discussing the safety of aspartame, dosage is an important consideration. The Committee of Scientific Experts (JECFA), jointly managed by FAO and WHO, has previously issued recommendations on the safe dosage of aspartame. According to this suggestion, a 60 kg person will have to drink more than 12 cans of diet coke every day before it will be affected.

  Zuo Xiaoxia, director of the Nutrition Department of the Eighth Medical Center of the General Hospital of the People’s Liberation Army, said that there is no need to be too alarmed and should be treated rationally. It is unscientific to talk about toxicity without dose. Although the mainstream research results have proved that aspartame is safe since it was discovered, it does not mean that aspartame can be eaten at will.

  "If you don’t consume a lot of products containing aspartame, then its risk may not be great." Liu Xuemei said: "In the past, the International Agency for Research on Cancer, a subsidiary of the World Health Organization, listed night shift work and red meat intake as possible carcinogens, and the use of mobile phones as possible carcinogens, similar to aspartame. In fact, aspartame is not used much in the products of many large companies, and there are other alternative sweeteners, so you don’t have to panic too much. "

  Sweeteners are not necessarily healthier than sugar.

  If you really want to drink sugar-free drinks, but you are worried about the carcinogenic problem of aspartame, Liu Xuemei suggested that you can choose to use other natural sweeteners, or fruits instead of artificial sweeteners, or you can give priority to some drinks that use safer natural sugars instead of sweeteners, such as mogrosides, stevioside and erythritol from natural plants.

  Liu Xuemei said that the following kinds of sugars can be safely selected: sugars with "glycosides", such as stevioside and mogroside, are all from natural plants; Sugar with "poly", such as fructooligosaccharide, polyglucose, xylooligosaccharide, yeast β -Dextran, Galactooligosaccharide, Oat β -Dextran, isomaltooligosaccharide, inulin, stachyose; Sugar with "ketone", such as isomaltulose, isomaltulose alcohol and psicose; Sugar with "alcohol", such as erythritol (which exists in plants such as seaweed and mushrooms and is less likely to cause sugar fluctuation in vivo than xylitol), maltitol, isomaltol, lactitol, xylitol and sorbitol. In addition, there are some sugars with special functions, such as L- arabinose, which can inhibit the conversion of sucrose into fructose and glucose, thus reducing the digestion and absorption of sugar.

  Judging whether a food is healthy or not? The key is to learn to look at the ingredient list and nutrient composition list.

  Liu Xuemei said that attention to health should be paid to reducing the intake of various sweets from childhood, and perhaps the best choice is not to drink sugary drinks and sweetening drinks. "From a health point of view, whether it is sugary drinks or sweetening drinks, try to drink as little as possible, and try to choose healthier drinks such as boiled water, moderate coffee, light tea or sugar-free soda water."

  Kai Zhong, director of Kexin Food and Health Information Exchange Center, reminded that sweeteners are not diet pills, but only an option to reduce sugar. Consumers who need to reduce sugar should drink more water, not or less sugary drinks. If they especially like sweet drinks, it is a better choice to choose sugar-free and low-sugar products. However, there is no shortcut to weight control. If you eat too much, you have to exercise more.

  As we all know, too much sugar intake is harmful to health, so sugar substitute is becoming more and more popular. However, with the extensive use and in-depth research of sugar substitute, the potential risks of various sugar substitutes have also been exposed.

  Professionals remind that consumers need to keep a clear head and look at the problem rationally with a scientific eye on the news that aspartame is listed as a carcinogen. Although it has not been confirmed by the official authority and specific suggestions, with the emergence of new research, it is believed that the authority will make corresponding adjustments.

The central bank announced that it would cut interest rates.

On the evening of September 27th, the central bank issued an announcement, lowering the convenient interest rate of standing loan by 20 basis points, and adjusting the convenient interest rates of standing loan overnight, 7 days and 1 month to 2.35%, 2.50% and 2.85% respectively.

Recently, the central bank released a series of good news.

On the morning of September 27th, the central bank announced that the People’s Bank of China adhered to a supportive monetary policy stance, increased the intensity and accuracy of monetary policy regulation, and created a good monetary and financial environment for China’s stable economic growth and high-quality development. The People’s Bank of China has decided to reduce the deposit reserve ratio of financial institutions by 0.5 percentage points from September 27th, 2024 (excluding financial institutions that have implemented the 5% deposit reserve ratio). After this reduction, the weighted average deposit reserve ratio of financial institutions is about 6.6%.

On the same day, the central bank announced that in order to strengthen the countercyclical adjustment of monetary policy and support stable economic growth, the operating interest rate of 7-day reverse repurchase in the open market will be adjusted from the previous 1.70% to 1.50% from September 27.

In addition, the central bank released the financial market operation in August 2024:

August 2024

Operation of financial markets

Bond market issuance

In August, the bond market issued a total of 7,398.39 billion yuan of various bonds. Treasury bonds issued 1,593.27 billion yuan, local government bonds issued 1,199.62 billion yuan, financial bonds issued 1,132.90 billion yuan, corporate credit bonds issued 1,378.91 billion yuan, credit asset-backed securities issued 13.10 billion yuan, and interbank certificates of deposit issued 2,050.39 billion yuan.

73983.9

hundred million yuan

debenture issue

15932.7

11996.2

11329.0

hundred million yuan

hundred million yuan

hundred million yuan

national debt

Local government bonds

financial bonds

13789.1

131.0

20503.9

hundred million yuan

hundred million yuan

hundred million yuan

Corporate credit bonds

Credit asset-backed securities

Interbank deposit slip

By the end of August, the balance of custody in the bond market was 167.9 trillion yuan. Among them, the inter-bank market custody balance was 147.3 trillion yuan, and the exchange market custody balance was 20.6 trillion yuan. In terms of types of bonds, the balance of custody of government bonds was 32.3 trillion yuan, that of local government bonds was 43.2 trillion yuan, that of financial bonds was 40.0 trillion yuan, that of corporate credit bonds was 32.6 trillion yuan, that of credit asset-backed securities was 1.2 trillion yuan, and that of interbank deposit certificates was 17.3 trillion yuan. The balance of over-the-counter bond custody of commercial banks was 89.11 billion yuan.

167.9

Trillion yuan

Bond market custody

32.3

43.2

40.0

Trillion yuan

Trillion yuan

Trillion yuan

national debt

local government

bond

financial bonds

32.6

1.2

17.3

Trillion yuan

Trillion yuan

Trillion yuan

Corporate credit bonds

Credit asset-backed securities

Interbank deposit slip

Counter bond custody of commercial banks

89.11 billion yuan

1. Including non-financial corporate debt financing instruments, asset-backed notes, corporate bonds, corporate bonds, exchange asset-backed securities, etc.

Operation of bond market

In August, the cash transactions in the inter-bank bond market reached 28.8 trillion yuan, with an average daily turnover of 1,310.95 billion yuan, down 1.6% year-on-year and 16.9% quarter-on-quarter. A single transaction with a turnover of 5-50 million yuan accounts for 51.1% of the total turnover, while a single transaction with a turnover of more than 90 million yuan accounts for 42.8% of the total turnover, with an average turnover of 41.588 million yuan. In the bond market of the exchange, the turnover of spot bonds was 3.1 trillion yuan, with an average daily turnover of 142.11 billion yuan. There were 81,000 transactions of bonds in the over-the-counter market of commercial banks, with a turnover of 58.15 billion yuan.

Cash transactions in the inter-bank bond market

28.8

Trillion yuan

Average daily turnover

13109.5

hundred million yuan

Decrease year-on-year

1.6%

Ring reduction

16.9%

Cash transactions in the exchange bond market

3.1

Trillion yuan

Average daily turnover

1421.1

hundred million yuan

Transaction of bonds in over-the-counter market of commercial banks

581.5

hundred million yuan

Number of transactions

81,000 pens

Opening of the bond market to the outside world

By the end of August, the custody balance of overseas institutions in China bond market was 4.56 trillion yuan, accounting for 2.7% of the custody balance in China bond market. Among them, the custody balance of overseas institutions in the inter-bank bond market was 4.52 trillion yuan; In terms of types of bonds, overseas institutions hold 2.28 trillion yuan of government bonds, accounting for 50.4%, 1.12 trillion yuan of interbank deposit certificates, accounting for 24.8%, and 0.95 trillion yuan of policy bank bonds, accounting for 21.0%.

Overseas institutions: 4.56 trillion yuan

Accounting for 2.7%

China bond market

Custody balance

Operation of money market

In August, the interbank lending market traded 9.1 trillion yuan, a year-on-year decrease of 30.4% and a quarter-on-quarter decrease of 4.7%. Bond repurchase transactions reached 143.9 trillion yuan, down 15.5% year-on-year and 2.7% quarter-on-quarter. The repurchase transaction of exchange standard bonds was 44.7 trillion yuan, an increase of 9.7% year-on-year and a decrease of 5.8% quarter-on-quarter.

Interbank

Interbank lending market

9.1

Trillion yuan

30.4%

Decrease year-on-year

Ring reduction

4.7%

Bond repurchase

143.9

Trillion yuan

15.5%

Decrease year-on-year

Ring reduction

2.7%

exchange

Standard bond repurchase

44.7

Trillion yuan

9.7%

Increase year-on-year

Ring reduction

5.8%

In August, the weighted average interest rate of interbank lending was 1.77%, a decrease of 4 basis points from the previous month; The weighted average interest rate of pledged repo was 1.79%, a decrease of 3 basis points from the previous month.

1.77%

Ring reduction

4 basis points

inter-bank borrowing

Weighted average interest rate

1.79%

Ring reduction

3 basis points

Pledged repurchase

Weighted average interest rate

Operation of bill market

In August, the amount of commercial bill acceptance was 2.9 trillion yuan, and the amount of discount was 2.2 trillion yuan. By the end of August, the accepted balance of commercial bills was 18.8 trillion yuan, and the discounted balance was 14.0 trillion yuan.

trade bill

honour

trade bill

discount

August

Amount of occurrence

2.9 trillion yuan

2.2 trillion yuan

As of the end of August

balance

18.8 trillion yuan

14.0 trillion yuan

In August, there were 102,000 small and medium-sized enterprises that issued bills, accounting for 93.1% of all ticket signing enterprises, and the amount of ticket signing by small and medium-sized enterprises was 2.1 trillion yuan, accounting for 71.4% of all ticket signing. There were 111,000 small and medium-sized enterprises discounted, accounting for 96.4% of all discounted enterprises, and the amount of discount was 1.7 trillion yuan, accounting for 77.0% of all discounted enterprises.

102,000 small and medium-sized enterprises issuing bills

All ticket signing enterprises

Accounting for 93.1% of all ticket signing enterprises.

The amount of ticket signing for small and medium-sized enterprises was 2.1 trillion yuan.

Amount of all tickets signed

Accounting for 71.4% of the total ticket signing amount.

Discount 111,000 small and medium-sized enterprises.

All discount enterprises

Accounting for 96.4% of all discount enterprises.

The discount amount of small and medium-sized enterprises is 1.7 trillion yuan.

Total discount amount

Accounting for 77.0% of the total discount amount.

Operation of the stock market

At the end of August, the Shanghai Composite Index closed at 2,842.2 points, down 96.5 points from the previous month or 3.3%. The Shenzhen Component Index closed at 8348.5 points, down 405.6 points from the previous month or 4.6%. In August, the average daily trading volume of Shanghai Stock Exchange was 257.96 billion yuan, a decrease of 12.7% from the previous month. The average daily trading volume in Shenzhen was 337.07 billion yuan, a decrease of 5.6% from the previous month.

Shanghai index

2842.2

point

Drop

3.3%

compare the numbers with the prior period of the same length

Down 96.5 points

Deep syndrome into finger

8348.5

point

Drop

4.6%

compare the numbers with the prior period of the same length

Down 405.6 points

Shanghai stock market

Average daily trading volume

2579.6

hundred million yuan

Ring reduction

12.7%

Shenshi

Average daily trading volume

3370.7

hundred million yuan

Ring reduction

5.6%

Structure of holders in the inter-bank bond market

By the end of August, there were 4,014 corporate members in the inter-bank bond market, all of whom were financial institutions. According to the statistics of corporate institutions, there are 2,094 holders of debt financing instruments of non-financial enterprises. From the scale of debt holding, the top 50 investors hold 50.4% of the debt, mainly concentrated in Public Offering of Fund (asset management), large state-owned commercial banks (self-operated) and trust companies (asset management); The top 200 investors held 83.5% of the debt. The maximum, minimum, average and median number of holders of debt financing instruments of a single non-financial enterprise are 88, 1, 13 and 13 respectively, and the number of debt financing instruments of non-financial enterprises with less than 20 holders accounts for 87%.

Top 50

investor

Debt holding ratio

50.4%

Top 200

investor

Debt holding ratio

83.5%

In August, from the perspective of transaction scale, according to the statistics of corporate institutions, the top 50 investors in debt financing instruments of non-financial enterprises accounted for 60.8%, mainly concentrated in securities companies (self-operated), fund companies (asset management) and joint-stock commercial banks (self-operated), and the top 200 investors accounted for 90.5%.

Top 50

investor

Transaction proportion

60.8%

Top 200

investor

Transaction proportion

90.5%

2. Self-operated investors and valet investors shall be counted separately, the same below.

Original title: "Central Bank Announces: Interest Rate Reduction"

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Realize the benign interaction between high-quality development and high-level security.

  [Thoroughly study and implement the spirit of the Fifth Plenary Session of the 19th CPC Central Committee]

  Since the 18th National Congress of the Communist Party of China, the CPC Central Committee with the Supreme Leader as the core has attached great importance to the issues of development and security, and constantly promoted the same-frequency resonance and benign interaction between them under the top-level design of the overall national security concept. The Central Committee of the Communist Party of China’s Proposal on Formulating the 14th Five-year Plan for National Economic and Social Development and the Long-term Target for the Year 2035, which was deliberated and adopted by the Fifth Plenary Session of the 19th CPC Central Committee, incorporated overall development and security into the guiding ideology of China’s economic and social development during the 14th Five-Year Plan period, and made strategic arrangements in a special chapter. Under the historical background of the great changes in the world in the past century and the strategic overall situation of the great rejuvenation of the Chinese nation, it is increasingly prominent and necessary to make overall plans for the two major events of development and security.

  Overall planning for development and security, which runs through all historical periods of the Communist Party of China (CPC)’s revolution, construction and reform, is an important embodiment of the Communist Party of China (CPC) people’s initial intention and mission, and has clear and profound logical connotation. In 1933, Comrade Mao Zedong pointed out in the article "Must Pay Attention to Economic Work" that "the fierce development of the revolutionary war requires us to mobilize the masses, immediately carry out movements on the economic front, and carry out various necessary and possible economic construction undertakings", profoundly expounded the purpose and significance of economic construction in the red areas during the revolutionary war, and scientifically discriminated "it is impossible to carry out economic construction in the revolutionary war environment" and "it is thought that economic construction is the center of all tasks at present, but neglected" In the mid-1960s, the CPC Central Committee made a major strategic decision of "third-line construction", which was still based on the comprehensive consideration of development and security. Since the reform and opening-up, the CPC Central Committee has always focused on the relationship among reform, development and stability, and put forward that reform, development and stability are the driving force, purpose and premise of socialist modernization respectively, emphasizing the need to persist in unifying the intensity of reform, the speed of development and the degree of social tolerance, promoting reform and development while maintaining social stability, and promoting social stability through reform and development, which highlights the ideological background of overall development and security.

  History illuminates reality. At present, China has entered the stage of high-quality development, and high-quality development is not limited to the economic field, but also covers all fields of the development of the party and the state; The connotation and extension of security are richer than any period in history, the space-time field is broader than any period in history, and the internal and external factors are more complicated than any period in history. At the same time, although China’s development has many advantages and conditions, the problem of insufficient development imbalance is still outstanding. The profound changes in the domestic and international environment have brought a series of new opportunities and challenges. At present and in the future, all kinds of contradictions and risks are prone to occur in China, and all kinds of foreseeable and unpredictable risk factors are obviously increasing. It is against this background that General Secretary of the Supreme Leader pointed out: "Insist on making overall plans for development and security, pay equal attention to development and security, realize the benign interaction between high-quality development and high-level security, not only enhance the national security strength through development, but also deepen the innovation of national security ideas, systems and means, create a security environment conducive to economic and social development, give more consideration to security factors in development, and strive to achieve a dynamic balance between development and security."

  To achieve high-quality development and high-level safety in a broader and deeper level, we need to grasp the following aspects.

  First of all, safety is the premise of development, and a high level of safety guarantees the sustainability of development. Our development adheres to the fundamental position of taking the people as the center. In the final analysis, national security work is also to protect the interests of the people. High-quality development is fundamentally consistent with high-level security. At the same time, promoting innovative development, coordinated development, green development, open development and shared development is based on national security and social stability. Without security and stability, all development is impossible; Any development at the expense of safety is difficult to sustain and is not real development. For quite a long time to come, all kinds of risks we are facing may accumulate and even be exposed in a concentrated way, including domestic economic, political, ideological and social risks and risks from nature, as well as international economic, political and military risks. At the same time, all kinds of contradictory risk challenge sources and contradictory risk challenge points are intertwined and interact with each other. If we fail to prevent and respond effectively, it will be transmitted, superimposed, evolved and upgraded, and even delay the historical process of building a socialist modern country in an all-round way. Therefore, to achieve a high level of security requires us to implement the overall national security concept, adhere to the organic unity of political security, people’s security and the supremacy of national interests, take people’s security as the purpose, take political security as the foundation and economic security as the foundation, defend national sovereignty and territorial integrity, prevent and resolve major security risks, and provide strong security guarantee for realizing the great rejuvenation of the Chinese nation.

  Secondly, development is the guarantee of security, and high-quality development is the greatest security. From a poor and weak country, China has developed into a great country that has created a miracle of rapid economic development and long-term social stability that is rare in the world. Every step forward, it always relies on development to solve various problems encountered in the journey. To enter a new stage of development and achieve high-quality development, we must adhere to the general tone of striving for progress through stability, take promoting high-quality development as the theme, take deepening supply-side structural reform as the main line, take reform and innovation as the fundamental driving force, and take meeting the people’s growing needs for a better life as the fundamental purpose, speed up the construction of a modern economic system, accelerate the construction of a new development pattern with the domestic macro-cycle as the main body and the domestic and international dual-cycle promoting each other, promote the modernization of the national governance system and governance capacity, and achieve economic stability and social stability.

  Thirdly, to realize the benign interaction between high-quality development and high-level safety, we must adhere to the scientific thinking method. On the one hand, we should establish a systematic concept, be good at studying the movement and development of things from the overall situation and the connection and combination of factors, comprehensively consider the relationship between development and security from the holistic perspective, realize that there is neither a pure development problem nor a pure security problem, and focus on consolidating the foundation, promoting advantages, supplementing shortcomings and strong and weak items, so as to realize the unity of development quality, structure, scale, speed, efficiency and security. On the other hand, we should stick to the bottom line thinking, strengthen the risk awareness, estimate the difficulties more fully, think about the risks more deeply, run the safe development through all fields and the whole process of national development, be good at taking precautions and preventing the slow progress, and ensure the smooth progress of socialist modernization.

  (Author: Xiao Bin, Associate Professor of School of Marxism, Xiamen University, and invited researcher of Socialism with Chinese characteristics Theoretical System Research Center, Fujian Province)

"Rock Tibetan Mastiff: Blue Light" Exposes New Preview to Start Music Adventure


1905 movie network news On November 23rd, the parent-child animated film released a "superstar debut" version of the preview and role poster, and Purdy, a dog who loves music, issued a "dream pursuit" declaration. In the film, he and his partners will form a "blue light" band to start a joyful musical adventure, and the film will be released nationwide on December 11th.


In the "Superstar Debut" version of the preview released by the film, Purdy, a dog who loves music, appeared to explain his mental journey. Purdy’s passionate declaration of "chasing dreams" and dynamic music filled the atmosphere of the "music party".


At the same time, the cute shapes of Purdy and his partners also doubled the joy of this feast. As can be seen from the preview, the animation production level of the film is good, and both China’s creation and international operation guarantee the quality of the film, making this film a "benchmark for Chinese parent-child animated films".


In a group of role posters exposed at the same time in the film, all the members of the "Blue Light" band appeared. Purdy, the lead singer, the drummer and the bassist have their own roles. With musical dreams, they vowed to bring an unforgettable "music party" to the audience.


At the same time, there are also "domineering" record company owner Mr. Liang, "star fan" Lily Xiaotian and a lamb wrapped in a bath towel. Many cute characters appeared in unison to add a lot of color to the film.


In addition to "cheerful music", "cute characters" and "super high production level", the most commendable story of the film is "music dream". In the film, Purdy walked with his friends to realize his musical dream, and he had setbacks and lost his mind on the way. However, with the warm persuasion of his father Kangba and the full support of his partners, this dog who loves music finally overcame the difficulties and realized his musical dream.

More importantly, the children watching this movie can learn the importance of "family" and "friendship" and the true meaning of "dream" from Purdy’s story, which not only makes them happy, but also gains growth.


Since its inception, the film has been full of expectations from countless parents on various platforms. Some parents said that the theme of the film "Music Dream" is "novel" in domestic animated films, and they will take their children to see it after it is released. Some parents also said that "the posters and previews of the film are very bright, the characters are cute and cute, and the children are sure to like them"; There are also audiences excited after listening to the music in the preview, saying that it is really worth the money to hear countless beautiful music in a movie.


As the film’s release date is approaching, this "music party exclusively for children" will definitely bring the parent-child audience a super-happy viewing trip, so stay tuned.


What is the reason for the decline in the value of soda ash? What impact will this downward trend bring?

Recently, the sharp drop in the market price of soda ash has aroused widespread concern. Behind this phenomenon is the result of multiple factors. First of all, the slowdown of global economic growth leads to the weakening of industrial demand, and the demand for soda ash as a chemical raw material decreases accordingly. Secondly, the continuous expansion of domestic soda production capacity has made the market oversupply and further depressed the price. In addition, the strict implementation of environmental protection policies has also prompted some high-cost and inefficient production enterprises to withdraw from the market, which has aggravated the oversupply situation in the short term.

The downward trend of soda ash price has a far-reaching impact on related industries. First of all, for soda ash production enterprises, the profit space has been greatly compressed, and some enterprises even face losses. This may lead enterprises to reduce investment, slow down the pace of technology upgrading and capacity expansion, thus affecting the long-term development of the industry. Secondly, for downstream users, such as glass manufacturing, detergent production and other industries, the decline in the price of soda ash means the reduction of production costs and helps to enhance the profitability of enterprises. However, this cost advantage may also lead enterprises to rely too much on low-priced raw materials and ignore technological innovation and product quality improvement.

In order to show the impact of soda ash price decline more intuitively, the following table lists the cost changes of different industries before and after soda ash price changes:

industry Cost before soda ash price change (yuan/ton) Cost of soda ash after price change (yuan/ton) Percentage change in cost glassmaking 1200 900 -25% Detergent production eight hundred 600 -25% Textile printing and dyeing 1000 eight hundred -20%

The drop in the price of soda ash has also had a significant impact on the futures market. Investors’ interest in soda ash futures has weakened, and both trading volume and positions have declined. This change in market sentiment may lead to further fluctuations in soda ash futures prices. For futures investors, it is necessary to pay close attention to changes in market supply and demand, macroeconomic trends and policy trends in order to make more rational investment decisions.

Generally speaking, the decline of soda ash price is the result of many factors, and its influence is not limited to production enterprises and downstream users, but also affects the whole futures market. Faced with this trend, relevant industries and enterprises need to take active measures to reduce the negative impact of price fluctuations and seek new development opportunities.

(Editor: Guo Jiandong)

[Disclaimer] This article only represents the author’s own views and has nothing to do with Hexun. Hexun.com is neutral about the statements and opinions in this article, and does not provide any express or implied guarantee for the accuracy, reliability or completeness of the contents. Readers are requested for reference only, and please take full responsibility. Email: news_center@staff.hexun.com.

Accelerate the deep integration of culture and science and technology.

   "Learn to think and practice"

   Cultural prosperity leads to national prosperity, and strong science and technology leads to strong country. Since ancient times, culture and technology have accompanied each other and promoted each other. Culture is soft power, and science and technology are the primary productive forces; Technology empowers culture, and culture casts soul for technology; Advanced cultural concept is the ideological source of scientific and technological innovation, and scientific and technological innovation is a strong driving force to promote the transformation of cultural production mode. At the Third Plenary Session of the 20th CPC Central Committee, it was proposed to "explore an effective mechanism for the integration of culture and science and technology, and accelerate the development of new cultural formats". This provides a direction for accelerating the deep integration of culture and science and technology.

  Culture is the source of wisdom to promote scientific and technological innovation.

   Cultural bacon casts the soul, and culture enlightens the mind. Culture condenses on a certain material carrier, but also dissociates from the material, which has a reaction to the material. Culture is the soul of a country and a nation, which provides a powerful spiritual force for social development.

   As China’s economy shifts from high-speed growth to high-quality development and from quantitative expansion to qualitative improvement, culture plays an increasingly prominent role in economic activities and plays a key role in some fields and links. Culture is the source of wisdom to promote scientific and technological innovation, and scientific and technological innovation cannot be separated from the cultivation of culture. Advanced culture can empower science and technology from the aspects of value orientation, thinking concept, innovation motivation and moral literacy, and create a cultural environment conducive to scientific and technological innovation, thus promoting the development of science and technology. General Secretary of the Supreme Leader pointed out: "China has a long history and a vast civilization, which is the foundation of our self-confidence and the source of our strength." The profound Chinese civilization is the unique spiritual symbol of the Chinese nation, and it also provides rich content resources, massive demand and application scenarios for the development of science and technology. Culture is being integrated into production and creation in various fields from multiple dimensions, providing a steady stream of inspiration and kinetic energy for scientific and technological innovation. "Culture+"has the characteristics of creative value-added and innovation-driven, and plays an important role in promoting the creation atmosphere and ability improvement of social innovation. Therefore, it is necessary to make full use of cultural resources, better promote the integration and development of culture and science and technology, take culture as an important fulcrum, adhere to cultural empowerment, and add kinetic energy and vitality to the development of scientific and technological innovation. In addition, "man is the most active factor in productive forces", promoting scientific and technological progress must take realistic people as the starting point, aim at realizing people’s all-round development, insist that scientific and technological innovation depends on and serves the people, and the achievements of scientific and technological innovation are shared by the people, which requires comprehensively improving the scientific and cultural quality of the people.Provide profound cultural nourishment and broad social foundation for promoting scientific and technological progress.

  Shaping a new cultural format with technology empowerment

   Science and technology is the primary productive force and always an important driving force to promote cultural innovation and development. The history of the development of human cultural formats is a history of the continuous integration and development of culture and technology. From "lead and fire" to promote the vigorous development of books, newspapers and periodicals, to "light and electricity" to promote radio, television and other industries, and then to "number and network" to bring new formats such as network audio-visual and digital travel, every major progress and breakthrough in technology has brought about a huge leap in cultural communication methods and formats. The General Secretary of the Supreme Leader pointed out: "The integration of culture and science and technology has not only given birth to new cultural formats, extended the cultural industrial chain, but also gathered a large number of innovative talents. It is a sunrise industry with great prospects." In recent years, new cultural formats such as online literature, online live broadcast and online audio have emerged. National Treasures, China in Ancient Books, Classical Poems, and Chinese Poetry Conference have ignited more cultural relics and heritage, provided profound nourishment for the construction of socialist spiritual civilization, and become an important business card to enhance the international influence of Chinese culture; The digital cultural industries, such as Malanshan Video Cultural and Creative Industrial Park in Hunan and Wisdom Mountain Cultural and Creative Industrial Park in Tianjin Binhai New Area, have a remarkable cluster development trend … These are inseparable from the powerful empowerment and support of science and technology.

   To create a new cultural format with scientific and technological empowerment, we must adhere to self-reliance and self-improvement in science and technology, so that scientific and technological innovation can better conform to the development trend of cultural construction and meet people’s more diverse spiritual and cultural needs. On the one hand, we will continue to strengthen basic research, put the promotion of original innovation ability in a more prominent position, gather superior forces, form a joint effort to tackle key problems, increase research and development efforts on core technologies such as digital technology, digital content and secure broadcasting, strive to overcome bottlenecks in high-end cultural equipment technologies such as video recording, high-definition production and broadcasting, and stage performance, improve the efficiency and depth of cultural innovation, and explore new contents and forms of cultural development, new paths and expressions of cultural communication, and new formats and new kinetic energy of cultural industries. On the other hand, focusing on the new trend of digital industrialization and industrial digitalization, we will promote the implementation of the national cultural digitalization strategy, form a Chinese cultural database, build a cultural data service platform, develop new scenes of digital cultural consumption, and speed up the digital layout of cultural industries, so as to empower the panoramic presentation of Chinese culture, promote the sharing of digital achievements of Chinese culture among the whole people, and inject more China cultural elements into the exchange and mutual learning of human civilization.

  Find the right grasp of the deep integration of culture and science and technology

   The vigorous development and wide application of a new generation of information technology has given birth to new quality productivity that can promote the leap-forward development of productivity and the transformation of production mode. The new quality productivity in the cultural field is an advanced productivity form driven by innovation, supported by high technology, guided by high quality and high efficiency, and centered on cultural creation and production. We should identify the connection point of deep integration of culture and science and technology, forge new quality productivity in the cultural field supported by high technology, and provide powerful kinetic energy for enhancing the soft power of national culture and the international influence of Chinese culture.

   Grasp the core element of scientific and technological innovation and build a modern cultural industry chain with diverse contents and broad coverage. General Secretary of the Supreme Leader stressed: "Scientific and technological innovation can give birth to new industries, new models and new kinetic energy, which is the core element of developing new quality productivity." This highlights the leading role of innovation, and clarifies that the revolutionary breakthrough of technology is the key to promote the leap of productivity, the adjustment of production relations and the allocation of innovative resources. At present, the comprehensive ranking of China’s national innovation index has steadily risen to the tenth place in the world, and it is constantly moving towards the forefront of innovative countries. On the new journey, we should continue to strengthen scientific and technological innovation, steadily enhance the ability of innovation and development, and cultivate new kinetic energy for developing new quality productivity in the cultural field; Comply with the trend of mobility and visualization, integrate various new technologies, explore new forms and paths of cultural expression, and build a new highland of cultural development.

   Grasp the cultural industry as an important carrier and continuously enhance the development resilience of new cultural formats. Cultural industry has the characteristics of high added value, low energy consumption and low pollution, and plays an important role in promoting economic development, inheriting Chinese civilization, meeting people’s spiritual and cultural needs, and expanding the international influence of Chinese culture. We should seize the opportunity of scientific and technological innovation, transform and upgrade traditional cultural industries, accelerate the development of new cultural formats, and take this as a traction to cultivate and expand emerging cultural industries, lay out future cultural industries in advance, and promote the digital, networked, intelligent and clustered development of cultural industries. Support and guide large-scale cultural enterprises, small and medium-sized micro-cultural enterprises and other market entities to actively participate in cultural construction, incubate more cultural and creative projects "golden ideas", greatly increase the scale of culture and related industries, and continuously enhance the development resilience of new cultural industries.

   Grasp the strategic support of talent team and build the talent cornerstone of a strong cultural country. Talent is the first resource and the foundation of innovation. Forging new productive forces in the cultural field depends on innovative talents in the final analysis. General Secretary of the Supreme Leader pointed out: "In the history of mankind, technology and talents have always gathered in places with good development momentum, high degree of civilization and the most active innovation." Therefore, we must grasp the strategic initiative, do a good job in the top-level design of talent strategy in the cultural field, focus on building a high-end platform to attract and gather cultural and creative talents, and gather talents from all over the world to use it. Focus on serving the new needs of economic and social development, deepen the reform of the system and mechanism for the development of cultural talents, increase the training of talents in urgent need in the cross-cutting fields of culture and science and technology, and take the road of independent training of talents.

   (Author: Chen Fangfang, a special researcher at Changsha University of Science and Technology Base, Socialism with Chinese characteristics Theoretical System Research Center, Hunan Province)

[Photo] Ge You joined the set of "I Know Women’s Hearts" and was kissed by Gong Li.


Stills of Andy Lau and Gong Li


Andy Lau, Ge You and Gong Li.


Gong Li kissed Ge You.
 

  A fashion blockbuster, which is shot by Bona Film Group with a huge sum of money and integrates multiple elements of magic, love and workplace, will be released nationwide on February 3, 2011 and the first day of the Lunar New Year. A few days ago, the film released a set of behind-the-scenes photos of the film. I know a woman’s heart was being filmed at Huairou Film and Television Base in Beijing, when an old man "Cheng Ying" accidentally crossed time and space to "join in". Instead of being a character in the Spring and Autumn Period and the Warring States Period, his counterpart became "his wife" Gong Li and "his colleague is an enemy" Andy Lau.
 
Fugui and Jiazhen deeply embraced Gong Li through time and space and talked about "I know a man’s heart"
 
  Ge You and Gong Li cooperated in the film very early, and the couple who shared weal and woe in the film in 1994-Fu Gui and Jia Zhen-became classic images in the film industry. Ge You and Gong Li have a deep friendship. During the filming of "I Know Women’s Hearts" in Beijing Huairou Film and Television Base, it happened to be filmed in the same base. Ge You heard that Gong Li was there, braved the high temperature of 37 degrees, and even didn’t hurry to change his costume. He first ran to the set to catch up with Gong Li. Although Fugui was no longer that Fugui, Jiazhen was no longer that precious, and they were dressed in costumes for more than 2,000 years, their feelings remained and they met. "At that time ("alive ") was ‘ I know a man’s heart ’ Unfortunately, he doesn’t know how to cherish it. This time, Hua Zi is very good to me. If he knows how to cherish it, let Grandpa Ge be jealous. " Gong Li talked about the old story of "Living" and did not forget to make fun of Ge You.
 
The two "thieves kings" met and smiled, and Ge You lamented that "the wife was lost and the soldiers were folded."
  Daming Chen, director of I Know Women’s Hearts, said that the role of the advertising company manager in the film is a Beijinger. At first, Ge You was considered as the leading actor in this play. Unfortunately, he has three New Year films to shoot, and he really can’t squeeze out the schedule. In this regard, Ge You "repented" and said humorously at the scene: "Last time I was killed in Andy Lau, this time he got revenge. I missed such a good movie and I was in the same boat ‘ Wife ’ He also took it away, which really lost his wife and soldiers. " Ge You’s punch line came out, and everyone on the set laughed. Andy Lau and Ge You looked at each other and smiled. They ate watermelons and reminisced about the past. It was very rare for two busy people to meet on the set.
 
Director Daming Chen: "I know a woman’s heart" is more local and resonant than ordinary love comedy.
 
  I Know Women’s Hearts is a remake of a classic comedy co-starred by Hollywood movie superstar mel gibson and Oscar-winning actress helen hunt in 2000, which tells a wonderful love story that originated from the office. During a brief conversation with Andy Lau, Gong Li and Ge You, Daming Chen, as the director, did not forget to explain the content of the film to Grandpa Ge: "This is a high-concept comedy, which tells that a man can hear a woman’s heart. Its concept is interesting and its starting point is attractive. The purpose of remaking this film is to be more interesting than the original film, and the parts involving the relationship between the characters and the feelings of the characters are naturally China." Ge You listened with rapt attention, fanned his fan, and communicated with several interested people. He felt that the story was very reliable. If he wasn’t dressed in ancient costume, he couldn’t wait to shoot a film right away.
 

More exciting content on the next page!

What is soda ash that keeps falling? What are the reasons for the decline of soda ash value?

Soda soda, chemically called sodium carbonate, is a chemical raw material widely used in glass manufacturing, detergent production, pulp and paper industry and other fields. Recently, the continuous decline in the price of soda ash futures has aroused widespread concern in the market. This paper will deeply discuss the reasons for the price drop of soda ash to help investors better understand this market phenomenon.

First of all, the change of supply and demand is one of the main factors leading to the decline of soda ash price. In recent years, with the fluctuation of global economy, the demand for soda ash has declined to some extent. Especially in industries such as glass manufacturing and detergent production, the consumption of soda ash has also decreased due to the decrease in market demand. At the same time, the supply of soda ash has remained relatively stable and even increased. This imbalance between supply and demand directly led to the decline in the price of soda ash.

Secondly, the reduction of raw material cost is also an important reason for the decline of soda ash price. The main raw materials of soda ash are salt and limestone, and the price fluctuation of these raw materials has a direct impact on the production cost of soda ash. In recent years, the market prices of salt and limestone are relatively low, which reduces the production cost of soda ash. In order to maintain market share, manufacturers often choose to lower the product price, which further promotes the decline of soda ash price.

In addition, the influence of the international market can not be ignored. As a global commodity, the price of soda ash is influenced by many factors, such as the relationship between supply and demand in the international market, exchange rate fluctuations and so on. In recent years, the supply of soda ash in the international market has increased, while the demand is relatively stable, which has led to the decline of the international price of soda ash. As China is the largest producer and consumer of soda ash in the world, the price fluctuation in the international market has a direct impact on the domestic market.

In order to more intuitively show the reasons for the price drop of soda ash, the following table lists the changes of soda ash supply-demand relationship and raw material cost in recent years:

age Demand (ten thousand tons) Supply (ten thousand tons) Cost of raw materials (yuan/ton) 2018 two thousand and five hundred 2600 1200 2019 2450 2650 1150 2020 2400 2700 1100 2021 2350 2750 1050

As can be seen from the table, the demand for soda ash is decreasing year by year, while the supply is increasing year by year, which leads to the imbalance between supply and demand. At the same time, the decrease of raw material cost year by year also provides space for the decline of soda ash price.

Finally, policy factors also have a certain impact on the price trend of soda ash. In recent years, in order to promote environmental protection and sustainable development, our government has issued a series of policies to restrict the development of industries with high pollution and high energy consumption. These policies have affected the production and consumption of soda ash to a certain extent, thus affecting the price of soda ash.

To sum up, the continuous decline of soda ash price is the result of many factors. When investors pay attention to the soda ash market, they should comprehensively consider the influence of supply and demand, raw material cost, international market and policy factors, so as to make more accurate judgments and decisions.

(Editor: Liu Chang)

[Disclaimer] This article only represents the author’s own views and has nothing to do with Hexun. Hexun.com is neutral about the statements and opinions in this article, and does not provide any express or implied guarantee for the accuracy, reliability or completeness of the contents. Readers are requested for reference only, and please take full responsibility. Email: news_center@staff.hexun.com.

What are the two manifestations of light and backlight? Measuring Geely Xingrui Active Braking

  [car home Active Emergency Braking Test] Looking back on this year, although the number of new cars tested in our program Active Emergency Braking Test declined slightly due to the epidemic situation, several cars tested this year are quite representative, such as the Weilai ES8 with a three-eye camera and millimeter-wave radar, and the brand-new Honda Fit with only a monocular camera. Originally, I thought this year’s test was over, but in last week’s test, the test results of a brand-new Geely (|) surprised me, and almost all of them failed in the rear-end static fake car project. What was the situation? Now listen to me slowly.

Home of the car

◆ Benchmark Civic, Geely Xingrui on the same platform as Volvo XC40.

  This car of Geely Xingrui was mysterious at first, but it has been in a half-hearted situation in the second half of this year. After the official appearance at the Beijing Auto Show, his fame soared, and he once entered the top ten in car home’s attention ranking.

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  The driving quality is excellent, and the technology is also very interesting. From the price point of view, from the official price of 139,700 sub-top models to the top model of 149,700, the driver assistance function has been configured.

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  In terms of configuration coverage, the mainstream L2 driver assistance functions are all configured. Compared with overseas brands, L2 driver assistance functions are generally configured above 200,000, which is full of sincerity.

◆ Introduction of Geely Xingrui Driver Assistance Function

  At present, Geely Xingrui has not given a unified name to its driver assistance function, so we will describe Xingrui’s active safety system with driver assistance function below.

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  From the technical route, this is a very obvious route of sensor fusion. Theoretically speaking, this technical route is more costly than the pure monocular camera route that is common in the middle and low-priced market at present, and at the same time, it has stronger ability to cope with bad weather, and the misjudgment will be reduced because of the double comparison between radar and camera, thus improving the accuracy of judgment.

  Let’s take a look at the actual test.

◆ Simulated rear-end static fake car test

   According to the test flow, we drive the test vehicle to 10km/h, 20km/h, 30km/h, 40km/h and 50km/h respectively, and then keep a certain constant speed to see if the vehicle can stop in front of the simulated vehicle to avoid collision. In the test, below 30km/h simulates the reaction ability of the system in the low-speed driving stage of the community, while above 30km/h tests the system reaction in the daily driving process. Below, let’s learn about the whole test through a video.

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  We first test according to the normal scene in the past. During the test, it was in winter in Beijing, the closed test site was in the north-south direction, and the vehicles were driving from north to south. Therefore, during the test (in the morning), the actual scene would be backlit. In fact, all our previous tests were conducted on sunny mornings, so the light environment of different models was roughly the same.

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More exciting videos are all on the car home video platform.

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  After continuing to improve the test speed, Xingruika finally reached 30km/h, and when the speed exceeded 30km/h, the system could not effectively identify the obstacles ahead.

  Immediately, I consulted the electronic manual of Xingrui. We found that the working range of AEB (active emergency braking) is 4 km/h-150 km/h. Among them, when facing the stationary front vehicle, the working speed is 4-85km/h, and when facing the moving vehicle in front, the working interval can be expanded to 4-150 km/h. Therefore, from the working range, our test conforms to the working range of Xingrui active emergency braking.

Home of the car

  Then, considering the weather conditions of the day, we think it is possible that the angle of direct sunlight (equivalent to the backlight scene) has an impact on the forward-looking camera.In order to verify this conjecture, we conducted a smooth test.

More exciting videos are all on the car home video platform.

  First of all, at low speed, it is still impossible to judge at 10km/h, but since 15km/h, Xingrui’s active emergency braking system has started to work stably, from early warning to automatic braking.

Home of the car

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  In the rear-end collision test, we can obviously find that the light has a great influence on the camera. In the case of backlight in the morning, there is a great chance of "blindness". When facing static objects, camera recognition is the main judgment basis of the system, so the system will default to the obstacle-free vehicles in front, and the automatic braking will not start at this time.

  In the case of smooth lighting, the system will operate well, and the working logic of the whole system is also very clear, and repeated tests have not affected its functional performance. We preliminarily judge that Xingrui has no problem in the algorithm of driver assistance system, but the performance of monocular camera may have a certain drag on the system.

◆ "Pedestrian" collision test article

  In addition to vehicles, Geely Xingrui’s active emergency braking system also introduces the judgment of pedestrians. Compared with vehicles on the road, pedestrians have greater flexibility, smaller size and complex shape, so they have higher requirements for the computing performance of the system and the capture of the camera. The system can neither misjudge the sudden braking nor "turn a blind eye", which will be more difficult. Because the pedestrian test was carried out after the rear-end stationary fake car was completed, the lighting environment of the test site was noon and afternoon, and the backlight situation improved. Therefore, we think that the "pedestrian" test will be relatively stable. The following test results are indeed as we expected:

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Write at the end:

  After this test, we make an analysis and guess on the active emergency braking function of Geely Xingrui. From the overall configuration, Geely Xingrui’s active safety system is rich in functions, and the common L2 driver assistance functions have been covered, which is worthy of recognition. But many functions do not mean that each function can reach a good level, such as active emergency braking function.

  Although this function of Xingrui adopts the technical route of camera+millimeter wave radar with higher cost and higher technical requirements, the function is too sensitive to light, and the backlight scene during the day may cause the camera to be "blind" and the system has no corresponding prompt at this time, which leads to a decrease in the degree of obstacle recognition. On the other hand, the visual range of the camera to the environment also has room for upgrading, and there is a certain chance that the dummy will not be recognized in the ghost probe test.

  Generally speaking, at present, the active emergency braking function of Geely Xingrui has room for upgrading from algorithm to hardware, and it is hoped that Xingrui can continuously improve this system and bring consumers a better product experience. (Photo/Text Photo by car home Leng Xiaoyang/Tang Dynasty)