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Supreme Leader and Mother River

　　On April 24, 2018, the supreme leader was inspecting the Three Gorges Dam. Source: Xinhua News Agency

　　CCTV News:"The Yangtze River is the mother river of the Chinese nation and must be protected."

　　On April 24, 2018, the supreme leader went deep into Hubei to inspect the ecological environment around the Three Gorges Project and the dam area. He looked up and saw the majestic dam, the rippling river and the lush river bank.

　　The Yangtze River, the cradle of the Chinese nation, is the longest river in China and our mother river. For thousands of years, the Yangtze River basin has been linked by water, connecting the upstream and downstream, the left and right banks and the main tributaries, forming a large economic and social system. In addition, the Yangtze River is an important link between the Silk Road Economic Belt and the 21st Century Maritime Silk Road.

　　For a long time, the development and planning of "Mother River" has always touched the heart of the supreme leader.

　　Play the "Yangtze River Concerto"

　　Chart: Schematic Diagram of the Yangtze River Delta Region Source: Xinhua News Agency

　　From Bashan Shushui to Jiangnan Water Town, the Yangtze River basin is outstanding, edifying the elites of past dynasties and nourishing countless people.

　　As early as when he was working in Zhejiang, the Supreme Leader put forward the "Eighth Five-Year Strategy" in view of the natural geographical advantages of Zhejiang’s long delta, explicitly demanding that "Zhejiang’s geographical advantages should be further developed, and Shanghai should take the initiative to participate in exchanges and cooperation in the Yangtze River Delta region, so as to continuously improve the level of opening up at home and abroad".

　　The Supreme Leader emphasized that jumping out of Zhejiang to develop Zhejiang is an inevitable requirement for Zhejiang’s economic development and a strategic choice for Zhejiang to achieve greater development from a high starting point.

　　Under the care and guidance of the supreme leader, Zhejiang Province plans to build an industrial belt and urban agglomeration around Hangzhou Bay, actively promotes regional coordinated development, and accelerates the rise of the Yangtze River Delta urban agglomeration led by Shanghai.

　　Schematic diagram of the Yangtze River Economic Belt Source: China Government Network

　　For more than a decade, the pace of Zhejiang’s comprehensive integration into the Yangtze River Delta has never stopped. In the Yangtze River Economic Belt, capital, commodities, technology, talents and other elements from Zhejiang are surging. From the Yangtze River Delta to the Yangtze River Economic Belt, Zhejiang took the initiative to connect and actively integrate, and played a powerful and distant "Yangtze River Concerto".

　　Shanghai Free Trade Zone Waigaoqiao Container Terminal Source: Xinhua News Agency

　　Plan the Yangtze River estuary

　　The rolling Yangtze River is a golden waterway, and Shanghai, located at the mouth of the Yangtze River, undoubtedly plays a leading role in the cooperation and exchanges in the Yangtze River Delta region.

　　In May, 2007, the Supreme Leader had just been working in Shanghai for two months. When planning the future development of Shanghai, he put forward that we must focus on "four in". One of them is to "think and plan in the overall arrangement of the country for the regional development of the Yangtze River Delta".

　　In August of the same year, the Shanghai Municipal Committee held a study meeting of the Standing Committee. At the meeting, the top leaders pointed out that it is necessary to adhere to regional coordinated development, promote regional cooperation, consciously put the service of the Yangtze River Delta in a more prominent position, strengthen cooperation and exchanges between Jiangsu, Zhejiang and Shanghai, give play to the role of the market in allocating port and shipping resources, and strive to build a Yangtze River Delta port group with clear levels, reasonable division of labor and complementary advantages; Actively promote the construction of the "golden waterway" of the Yangtze River, and make greater contributions to serving the Yangtze River basin, serving the whole country, and promoting the coordinated development of the East, China and the West.

　　Look at the overall situation and plan for the future.

　　Under the leadership of the supreme leader, Shanghai has actively participated in and actively served the development of the Yangtze River Delta region and the construction of the Yangtze River Economic Belt for more than a decade, setting up a free trade zone, deepening reform, expanding opening up and building channels.

　　During the "Thirteenth Five-Year Plan" period, Shanghai will promote the landing of major projects and realize multi-point connection and organic integration with the comprehensive transportation network of the Yangtze River Economic Belt; Strengthen the opening and cooperation of river basins and establish a cooperation mechanism for customs clearance in the Yangtze River Economic Belt; Enhance innovation ability and promote regional industrial transformation and upgrading.

　　On July 21, 2013, the Supreme Leader visited Wuhan. As soon as he got off the plane, he came to Yangluo Container Port Area of Wuhan Xingang in the rain. Source: Xinhua News Agency

　　Visit the port area along the Yangtze River in the rain.

　　Since assuming the post of general secretary, the supreme leader has braved the severe cold and summer heat to inspect the Yangtze River basin many times, held symposiums, reviewed relevant plans, and deployed and implemented the strategy of the Yangtze River Economic Belt.

　　It was an unusual summer-in July of 2013, a torrential rain came unexpectedly in Xingang, Wuhan, and the Yangtze River became more and more misty.

　　As soon as the supreme leader got off the plane, he braved the rain and went straight to Yangluo Container Port Area in Wuhan Xingang, located on the north bank of the Yangtze River. It rained heavily, and the accumulated water didn’t cross the foot. In the storm, he rolled up his trouser legs, held an umbrella and asked while watching. The shirt was wet by the rain, but the supreme leader still focused on the local production situation. He stressed that the Yangtze River basin should strengthen cooperation, give play to the role of inland navigation, and turn the whole basin into a golden waterway.

　　Under the care and guidance of the supreme leader, in March 2014, "Building the Yangtze River Economic Belt by Relying on the Golden Waterway" was written into the Government Work Report. In September 2014, the State Council’s Guiding Opinions on Promoting the Development of the Yangtze River Economic Belt by Relying on the Golden Waterway was officially released.

　　The Yangtze River Economic Belt starts from Shanghai in the east and reaches Yunnan in the west, covering 11 provinces and cities such as Shanghai, Jiangsu, Zhejiang, Anhui, Jiangxi, Hubei, Hunan, Chongqing, Sichuan, Yunnan and Guizhou, radiating about 600 million people and covering an area of about 2.05 million square kilometers, with GDP accounting for 45% of the national total. Promoting the development of the Yangtze River Economic Belt is an important regional development strategy of the country, and it is a new strategic chess game that is balanced vertically and horizontally and related to the coordinated development of the eastern, central and western regions.

　　On April 26, 2018, the Supreme Leader hosted a symposium in Wuhan to further promote the development of the Yangtze River Economic Belt. Source: Xinhua News Agency

　　Planning the future development of the Yangtze River

　　January 5, 2016 is a milestone in the development history of the Yangtze River Economic Belt.

　　Just after New Year’s Day, the mountain city in winter is warm in the cold. From January 4th to 6th, the Supreme Leader came to Orchard Port in Liangjiang New Area of Chongqing, walked to the dock front platform, inspected the Yangtze River shipping and port loading and unloading operations, listened to the construction of the shipping center in the upper reaches of the Yangtze River, and told operators, cargo ship owners and port planning and construction personnel to build, manage and operate the port well.

　　On January 5, 2016, the Supreme Leader held a symposium in Chongqing to promote the development of the Yangtze River Economic Belt, pointing out the direction and setting the tone for the development of the Yangtze River Economic Belt: "At present and for a long time to come, we should put the restoration of the ecological environment of the Yangtze River in an overwhelming position, work together for great protection and not engage in great development."

　　As a basin economy, the Yangtze River Economic Belt involves water, roads, ports, shores, production, cities, biology, wetlands, environment and other aspects. It is a whole and must be comprehensively grasped and planned.

　　In March of the same year, the Political Bureau of the Central Committee held a meeting to review and approve the Outline of the Yangtze River Economic Belt Development Plan. In 2017, "Promoting the development of the Yangtze River Economic Belt with the guidance of joint protection and no development" was solemnly written into the report of the 19th National Congress.

　　In 2018, in the spring and April, the green is full of Jingchu. The supreme leader crossed Jingzhou and entered Yueyang to develop the Yangtze River Economic Belt, further unified his thinking, and investigated whether the requirements of "jointly protecting and not developing" were put in place; Through on-the-spot investigation and classified guidance, it is proposed to correctly grasp the "five major relations" and push the development of the Yangtze River Economic Belt deeper.

　　From Xizi Lake to Zhongnanhai, this affection for the mother river, the Yangtze River, has been lingering in the mind of the Supreme Leader General Secretary. In his mind, it bears the sustainable development of the whole eastern, central and western regions and the coordinated development of the whole Chinese land.

　　The blueprint is clearer and the horn is louder.

　　Under the leadership of the CPC Central Committee with the Supreme Leader as the core, we will protect and make good use of the golden waterway of the Yangtze River, build and develop the Yangtze River Economic Belt, and March forward toward the glorious other side of the great rejuvenation of the Chinese nation. (Text/Yu Xiaoling)

National economic data released in May： China’s economy continues to improve steadily.

　　Mao Shengyong, spokesman of the National Bureau of Statistics of China, said at a recent press conference that in May, China’s national economy continued to maintain a generally stable, stable and positive development trend, production demand was basically stable, employment continued to improve, prices rose moderately, the supply and demand structure and enterprise benefits continued to improve, and the endogenous driving force for economic growth continued to increase. Analysts pointed out that although the current world economy has picked up, there are still many uncertainties. In this context, China’s economy can continue to improve steadily, which not only reflects the correctness of China’s reform and opening-up measures and economic development ideas, but also brings confidence and positive energy to the world economy.

　　There are many bright spots in economic operation

　　In May this year, China’s economy once again continued its previous positive trend in key indicators.

　　According to Mao Shengyong, the current economic operation mainly presents five characteristics:

　　First, the industry grew steadily. The stability of economic operation is increasing day by day, 1-mdash; The added value of industrial enterprises above designated size increased by 6.9% in May; In May, the service industry production index rose by 8.1% year-on-year, 0.1 percentage point faster than last month.

　　The second is the optimization of demand structure. From the consumption point of view, upgrading consumption keeps a relatively fast growth momentum. From the perspective of investment, although the overall investment growth rate has declined, the investment structure is being optimized.

　　The third is the improvement of economic benefits. 1— The profit ratio of industrial enterprises above designated size in April was 1-mdash; 3.4 percentage points faster in March; The operating profit of the service industry above designated size increased by 8.4%, and the fiscal revenue and tax revenue also maintained rapid growth.

　　Fourth, employment and prices are stable. In terms of employment, the national urban survey unemployment rate was 4.8% in May, down 0.1 percentage points from the previous month and the same period last year. From the price point of view, CPI rose by 1.8% year-on-year in May, maintaining a moderate upward trend. PPI rose by 4.1% in May, and remained at a reasonable level on the whole.

　　Fifth, kinetic energy accelerates conversion. From the industrial point of view, in May, the added value of high-tech industries and equipment manufacturing increased by 12.3% and 9.4% respectively, and the growth rate was 5.5 and 2.6 percentage points faster than that of industries above designated size. From the perspective of service industry, the growth momentum of modern service industry is relatively good, 1-mdash; In April, the operating income of strategic emerging service industries increased by more than 18%.

　　"Judging from the comprehensive production indicators, efficiency indicators, structural indicators and people’s livelihood indicators, China’s economy is generally stable and stable, and the development trend is continuing." Mao Shengyong said.

　　Strong increase in domestic demand

　　In the early morning of 14th, the Federal Reserve announced the second rate hike this year, which once again added uncertainty to the global economy. What impact does this have on China’s economy?

　　Mao Shengyong responded by saying that in recent times, major developed economies have withdrawn from quantitative easing, international trade frictions have also intensified, and the imbalance and instability of the world economy have increased. At the same time, we must also see that the growth of major economies is relatively stable, and most economies have a good growth momentum. He said that the impact of the Fed’s interest rate hike on the world economy, including global capital flows, has been partially released. Judging from China’s past experience and reality, the impact of the Fed’s interest rate hike on China’s economy is limited in the short term.

　　"Internally, the contribution of consumption to China’s economic growth has been stable at around 60% in recent years, and its basic role is getting stronger and stronger." Mao Shengyong said that in the internal and external demand contribution of economic growth in 2017, domestic demand contributed more than 90%, and domestic demand contributed more in the first quarter of this year. At this stage of China’s economic development, the expansion of consumption scale, the upgrading of consumption structure and the promotion of consumption contribution are inevitable development trends. Even if there is some trouble outside, it is no problem for China’s economy to maintain steady and rapid growth as long as the article on domestic demand is done well.

　　Zhang Liqun, a researcher in the Macroeconomic Research Department of the State Council Development Research Center, also pointed out in an interview with this reporter that the latest data shows that consumption plays an increasingly important role in enhancing the resilience of China’s economic growth. Consolidating the basic position of consumption driving economic growth requires us to conform to the trend of consumption upgrading and let the demand be released continuously.

　　Reform accumulates new kinetic energy

　　Analysts pointed out that the key to observing China’s economy is to grasp the future evolution logic of supply-side reform, and 2018 is regarded as a crucial year for supply-side reform.

　　According to the data released by the Bureau of Statistics, the micro leverage ratio continued to decline. At the end of April, the asset-liability ratio of industrial enterprises above designated size was 56.5%, down 0.7 percentage points year-on-year; The inventory of commercial housing continued to decrease. At the end of May, the area of commercial housing for sale nationwide was 560.1 million square meters, a decrease of 6.77 million square meters from the end of last month and a year-on-year decrease of 15.2%. Enterprise costs continue to decrease, 1-mdash; In April, the cost per 100 yuan of main business income of industrial enterprises above designated size was 84.52 yuan, a decrease of 0.21 yuan over the same period of last year; Investment in the short-board sector grew rapidly, 1-mdash; In May, the investment in ecological protection and environmental management, agriculture and public facilities management increased by 36.7%, 16.1% and 8.6% respectively, which was 30.6%, 10.0% and 2.5% faster than the total investment respectively.

　　In Zhang Liqun’s view, whether the micro-leverage ratio continues to decline, or the investment in short-board areas grows rapidly, or the output of new energy vehicles increased by 56.7%, integrated circuits increased by 17.2%, and industrial robots increased by 35.1% in May, it means that the effect of supply-side structural reform in China is increasingly manifested.

　　"The economic data in May performed well, reflecting that China’s economy is becoming more and more stable, which contains more factors of high-quality development. But at the same time, we should also see that China still has a lot of ways to climb the hill and cross the ridge to improve the quality of development. To this end, we must benchmark and compare with the requirements of high-quality development, further deepen the structural reform of the supply side, break down the institutional and institutional obstacles that restrict the improvement of the quality of economic development, and strive to consolidate the various foundations of high-quality development. Only in this way can we continue to accumulate momentum for sustained and healthy economic development. " Zhang Liqun said. (Reporter Wang Junling)

　　People’s Daily Overseas Edition (03rd Edition, June 18, 2018)

Persistent high temperature threatens the health of key populations. Experts prompt scientific prevention.

　　Recently, high temperature warnings have been issued continuously in many parts of the country, and the highest temperature in some areas exceeds 40 C. Experts suggest that continuous high temperature weather will bring health risks to some key people, and these people should strengthen health protection and scientifically prevent heatstroke.

　　The "Guidelines for Public Health Protection of High Temperature and Heat Wave" previously issued by the National Bureau for Disease Control and Prevention pointed out that there are three main categories of key people for health protection of high temperature and heat wave. The first category is sensitive people, such as children, pregnant women and the elderly; The second category is patients with chronic basic diseases, such as circulatory system diseases, respiratory system diseases, mental and behavioral disorders, kidney diseases and diabetes; The third category is outdoor workers, such as farmers, construction workers, sanitation workers, couriers and other personnel.

　　"Heatstroke is divided into four stages: threatened heatstroke, mild heatstroke, moderate heatstroke and severe heatstroke." Chi Cheng, deputy director of the emergency department of Peking University People’s Hospital, said that the main manifestations of threatened heatstroke are dizziness, fatigue, sweating, thirst and inattention. After that, the body temperature increased and fever appeared, but there was no change of consciousness, so it entered the stage of mild heatstroke. Without intervention, the body temperature will continue to rise, reaching a high fever of 40℃ to 42℃, accompanied by limb convulsions and disturbance of consciousness, and it will enter the stage of moderate heatstroke and severe heatstroke. The most serious heatstroke is severe heatstroke, that is, heatstroke, which is usually complicated with multiple organ failure.

　　Chi Cheng reminded that people who work and exercise in high temperature and high humidity environment for a long time, the elderly, children, pregnant women and other people with poor health are more prone to heatstroke, and these people should pay special attention.

　　How to prevent heatstroke in key populations? The National Bureau of Disease Control and Prevention reminds that key people should avoid living and working in high temperature and high humidity environment for a long time, have a light diet, pay attention to hydrating and combine work and rest. For sensitive people such as children and pregnant women, children who play outdoors are encouraged to stay in the shade as much as possible, and pregnant women and the elderly are encouraged to stay in the cool room as much as possible. For patients with chronic basic diseases, take the initiative, drink plenty of water, and don’t feel thirsty before drinking water. If you need to take diuretics due to illness, ask your doctor for a reasonable amount of water in time. For outdoor workers, it is necessary to arrange outdoor work time reasonably to prevent occupational heatstroke, and outdoor workers should regularly carry out routine occupational health examination and emergency occupational health examination before and during their posts.

　　What should I do if the key people get heatstroke? Experts suggest that when the symptoms of heatstroke appear, the patient should be moved to a cool and ventilated place, the sleeves and neckline of the patient should be untied, and the skin of the patient’s limbs should be wiped with a cool towel, or the patient’s forehead, armpits, thigh roots and other parts should be iced with an ice pack to speed up the cooling, and the temperature of the environment should be reduced with fans and air conditioners. If the patient is conscious, assist the patient to drink more water to replenish water, preferably a drink containing salt. Once the patient has serious symptoms such as disturbance of consciousness, coma, respiratory and circulatory failure, he should call 120 immediately and seek medical treatment in time.

Introduction of the 2024 Paris Olympic Games： Rowing

CCTV News: Rowing originally existed as a mode of transportation in ancient Egypt, Greece and Rome. Rowing became a competitive sport mainly from the 17th century to the early 18th century. In 1829, Oxford and Cambridge universities began to hold rowing competitions that attracted worldwide attention.

Project rules

In rowing, athletes push the boat forward by rowing fixed blades. Different from other events, rowers have to cross the finish line with their backs to the forward direction.

The rowing track is 2000 meters long, and the number of people on the boat can be single, double, four and eight. Rowing competition can be divided into double oars and single oars. Single paddle competition, that is, athletes hold one paddle in both hands, while double paddles hold one paddle in each hand. The eight-person race will be equipped with a helmsman who is responsible for controlling the ship and giving orders to the crew. One person in the team can steer the rowing boat through the pedal.

Olympic history

Except for the 1896 Athens Olympic Games, rowing was not absent from any Olympic Games. In fact, rowing was also an Olympic event at that time, but due to the weather, the organizing Committee had to cancel the competition. Women’s rowing made its Olympic debut at the 1976 Montreal Olympics.

The United States ranked first in the Olympic rowing medal list with 89 medals, including 33 gold medals. In the history of Olympic rowing, Sir steven redgrave (5 gold and 1 bronze) and Elizabeth Lipper (5 gold, 2 silver and 1 bronze) are recognized as the greatest male and female rowers.

Have you noticed that the QR code scanning boxes of WeChat and Alipay are disappearing？

This article comes from WeChat WeChat official account:Ai faner (id: ifanr), Author: Chen Wenjun, title map from: vision china

We scan the code almost every day, log in to the website, register information, pay for consumption, add friends … As long as we open it and scan it, we can save a lot of tedious steps.

Every time you turn on the tool to scan the code, these tools usually give a 1:1 scanning code box. Align the box with the QR code, and the mobile phone can immediately identify the information in it.

However, I wonder if you have noticed that even if these tools frame the "scanning area", sometimes scanning can be completed without aligning the frame. As long as the QR code is within the camera’s framing range, the system can immediately identify the content.

Then what’s the use of this box?

In fact, this has a lot to do with the purpose of each app scanning function. Looking at the 10 most commonly used apps in our daily life, the design of QR code scanning pages can be divided into several categories:

Fixed-area scanning is the code scanning mode that we are most exposed to at present. Users need to aim their mobile phones at the QR code scanning to make them recognize. If the target QR code is not in the frame, the app cannot recognize the content.

In some of our more commonly used apps, such as WeChat and Alipay, they have changed from "fixed frame scanning" to "full screen scanning", that is, the entire mobile phone screen is a scanning frame.

The mobile phone can recognize without facing the QR code, and the recognition speed is much faster than that of framed scanning. Before the camera is in focus, the system can recognize the information immediately.

The QR code can be recognized even if it is not in the box (the actual speed is faster than GIF).

Of course, there is also an example here. When I turn on Weibo code scanning, the page is designed with a fixed code scanning area, but the scanning mechanism of app is actually full screen scanning. So every time I prepare to scan, the information has been read before the QR code enters the box.

Is the designer lazy? Not necessarily.

It is obviously not enough to pry open the details of the scanned page, but also need to consider from many aspects, such as the hardware used for code scanning and the decoding ability on the software level.

In fact, it is not difficult to make the scanned code page full screen, but it is not unnecessary to vacate a box as the scanning area.

The reason is that when the QR code first entered our life, neither the app itself nor the code scanning equipment was specially optimized, and the success rate of code scanning was often related to the ambient light, distance and clarity of the QR code.

Personally speaking, the code scanning area provides a hint of code scanning recognition, and its task is to tell the user that the camera is ready for scanning, so long as it is aligned, the information can be read. As for the device itself, whether the camera can quickly identify the QR code has something to do with the focusing performance of the camera and the decoding operation ability of the processor.

The history of QR code can be traced back to the 1980s, but it didn’t begin to spread to our daily life until the past decade.

However, in the early days, the focusing response and speed of smart phones were relatively slow, and they were also easily affected by ambient light and lens clarity. Therefore, when developing app scanning pages, developers need to adjust the camera’s framing range to make the camera focus on a specific area, instead of focusing on a wide area.

The code scanning speed of the old mobile phone is slower than that of the new mobile phone (pay attention to the focus bellows and use Meizu MX5 test)

Simply put,Separating the code scanning area is actually to take care of the equipment with relatively slow focusing speed in the early days.. The principle is similar to the fixed-point focusing area of the camera. The camera only measures and focuses on the area within the square frame, thus reducing the interference of other factors around the target QR code, thus improving the camera focusing speed and the success rate of code scanning.

Looking at it from another angle, the code scanning box is not only a way to tell the user that the scanning function is on, but also a way to improve the recognition accuracy. As long as the key elements of the QR code in the box meet the requirements, the recognition accuracy is about 100%.

In order to enable users to scan codes in different environments and conditions, developers will integrate flash, remote automatic zoom, etc. when using scanning code development libraries such as zxing, all of which are aimed at enabling mobile phones to see the QR code information in the box and facilitate users to scan in any use situation.

However, in recent years, the camera focusing speed of smart phones has improved rapidly, and the ability of the core processor to process images has gradually improved. Therefore, modern mobile phone code scanning does not need long-term focusing, even if it does, it can only be completed in less than one second.

At the same time, with the application of QR code becoming mainstream, app developers also improve the speed and success rate of code scanning by creating their own code scanning engine, instead of relying solely on the hardware level to complete the identification process-WeChat is one of them.

Although WeChat is not the first app to use QR code, it has to be admitted that it is the most frequent app to use QR code and scan code, which not only makes users think of WeChat once they mention "scan code", but also indirectly promotes WeChat’s development of scan code technology.

Before QBar came out, there were mainly two kinds of code scanning engines, zxing and zbar. These two engines have different advantages, but both have their own shortcomings. At the same time, these two engines have more restrictions on barcode recognition than QR codes.

In 2016, the WeChat technical team introduced the working principle of QBar code scanning engine in a tweet published by WeChat official account WeChat School.

Compared with the traditional code scanning method, QBar will screen out the barcode/QR code content through the pre-judgment algorithm when scanning the code page, quickly identify the graphic code information in front of the screen through scanning the page, and then decode the image through QBar engine to output the final result.

In other words, when the user opens the code scanning page, as long as there is a barcode or two-dimensional code image in the frame, the system has already started to predict the user’s code scanning target and start to classify and identify it.

GIF can be recognized only in one corner (using WeChat scan function)

And because the QR code itself also has a fault-tolerant mechanism.(Originally designed to make the QR code work normally under damage)In fact, the camera does not need to compare the complete QR code, just find the key points of the QR code within the fault-tolerant range to identify it. Combined with the characteristics of QBar engine, the code scanning camera can identify and decode the QR code and its key information in one second by predicting and screening it.

Flow chart of WeChat code scanning prediction module, picture from: WeChat School

The recognition principle announced by WeChat seems complicated, but in modern smart phones, these tasks can only be completed in a few milliseconds. According to the reference data of "WeChat School",The decoding time of WeChat on iOS client is 5 milliseconds, and that of Android client is 12 milliseconds..

As for why the code scanning speed of iOS devices is faster than that of Android, this may be related to the decoding performance between iOS and Android devices at that time.

IPhone 11 Pro Max uses WeChat code scanning speed (slightly accelerated due to the number of GIF frames).

In the test in the daylight environment, the iPhone using A13 processor has indeed completed the recognition before focusing, and even the iPhone 7 in 2016 can achieve the "one-stroke scanning" response; The Android flagship using Snapdragon 865 also responds very quickly, but there is a slight speed gap compared with iOS.

If the iPhone scan code is "complete identification before you see it clearly", then Android is "complete identification immediately after you see it clearly".

The difference between the two is only in milliseconds.

One plus eight uses the code scanning speed of WeChat (slightly accelerated due to the number of GIF frames)

However, although the scanning speed of Android is slightly lower than that of iOS, compared with the speed difference between the two camps five years ago, the improvement of Android has been very obvious, which is almost the same as the recognition speed of iOS. If you don’t pay attention, you can hardly see the difference between the two.

Therefore, the recognition time of the past 5/12 milliseconds is not absolute, and they will change with the iteration of mobile phone hardware and soft algorithm.

It is worth mentioning that when using Android devices to scan multiple QR codes at the same time, multiple QR codes in the screen will be identified together, and then an entrance will be provided for users to choose their own objects; Although the recognition speed of iOS is faster, when faced with multiple QR codes, the system chooses one more.

Wechat without a fixed scanning frame can identify multiple QR codes at the same time (note: at present, this function is only tested in gray scale in some Android clients)

In addition to WeChat, Alipay also uses a full-screen scan similar to WeChat. Although its recognition speed is slightly slower than WeChat, it can also achieve the level of recognition by raising your hand.

According to the technical documents shared by CSDN users, Alipay’s code scanning function is integrated by libqrencode library. Although it is not Qbar of WeChat, its recognition speed under deep optimization can also be calculated in milliseconds.

With a more perfect algorithm engine and hardware decoding ability, mobile phones have become "sensitive" to the identification of QR codes, and they can quickly identify the contents of the codes without high-definition images.

In this way, the box used to fix the focus in the past will naturally be replaced by full-screen scanning.

Alipay’s recognition speed is also very fast (iPhone 11 Pro Max test).

The changes in the form of code scanning are particularly obvious in the apps with more code scanning behaviors such as WeChat, Alipay and Weibo.

Users can quickly complete code scanning transactions on WeChat and Alipay; Weibo allows users to quickly complete the two-step verification of code scanning.

The change of code scanning speed and accuracy depends on the improvement of code scanning engine and algorithm by several head enterprises, but from the side, it actually benefits from the continuous upgrading of mobile phone hard power. Only a camera with higher resolution and a processor with better computing performance can carry more complex decoding engines and algorithms and realize millisecond scanning code recognition.

IPhone 7 and the old version of WeChat scan box

From the evolution of the code scanning page, it can be seen that the code scanning efficiency of mobile phones is constantly improving, and commonly used apps can complete scanning without aligning codes when scanning codes. Then let’s look back, is the most primitive scanning code box still meaningful?

Actually, there is.

First of all, the current retention rate of old equipment is high, and the service life of smart phones is generally 2 to 3 years, or even 4 to 5 years. The focusing and recognition capabilities of old phones are not as good as those of new phones.

The function of the scanning box, as mentioned above, is convenient for the old mobile phone to quickly find the focus and improve the scanning speed and accuracy of the QR code, and it can also intuitively guide the user to aim the mobile phone at the code scanning, which actually indirectly improves the recognition efficiency of the old mobile phone every time it scans the code.

Although JD.COM and Taobao scan codes are full screen, they still need to be scanned in the frame.

In addition, although WeChat has its own code scanning engine, not all app developers have the ability to develop engines or specially optimize engines.

For the app with little demand for code scanning, the scanning function is mainly to scan the QR code, and the scanning success rate is more important than the speed. Therefore, under the premise of not optimizing the recognition engine, using the original in-frame scanning can ensure that both old and new devices have a high recognition success rate.

The popularity of two-dimensional code greatly simplifies our operation in inquiry, payment and registration, and the mobile phone used to scan it is also becoming efficient and diversified with the upgrading of decoding ability of software and hardware.

Today’s code scanning page can scan more than two-dimensional code, and it can also be combined with neural network to recognize things. According to the introduction of the latest function document of WeChat, based on 850,000 plant image data provided by Kunming Institute of Botany, Chinese Academy of Sciences, at present, the sweeping function can identify more than 36,000 plants, which basically covers the data of flowers and trees we see every day.

It can be seen that the code scanning page is carrying more functions with more meta-algorithms.

For this reason, the scanning code box used to guide users and improve the focusing speed of equipment in the past has gradually withdrawn from the stage with the algorithm upgrade, hardware iteration and the scanning code page supporting more scanning targets. howeverIt didn’t really leave us, just evolved from 1:1 in the past to the same proportion as the mobile phone screen..

This article comes from WeChat WeChat official account:Ai faner (id: ifanr), Author: Chen Wenjun

Shaanxi Unicom： Strive to Improve the ＂Digital Traction＂ of Shaanxi’s High-quality Development

　　Cctv news On January 17th, Shaanxi Unicom held the 2023 Work Conference and the Eighth Workers’ Congress of the Third Session. Chen Jiqiu, deputy of the Provincial People’s Congress, secretary of the Party Committee and general manager of Shaanxi Unicom, conveyed the spirit of the two sessions in Shaanxi Province, summed up the work in 2022 and arranged the tasks in 2023.

　　In 2023, the Shaanxi provincial government work report proposed to increase the traction of the digital economy, build a new generation of national artificial intelligence innovation and development pilot zone, and accelerate the construction of hundreds of billions of industrial clusters such as big data and software information services. A meeting of the 14th National People’s Congress of Shaanxi Province called for vigorously developing county economy, private economy, open economy and digital economy, coordinating development and security, and better serving and integrating into the new development pattern. The words "digital traction", "high-quality development" and "original contribution" were focused on by the deputies.

　　Chen Jiqiu pointed out that it is necessary to closely focus on the objectives and tasks set by the Shaanxi Provincial People’s Congress and the Shaanxi Provincial People’s Congress, perform their duties and take responsibility, plan and grasp the work in 2023, and solidly promote the deployment of relevant work in Shaanxi Unicom.

　　It was made clear at the meeting that in order to do a good job in 2023, Shaanxi Unicom will iteratively upgrade "12358" to "12369" according to the work arrangement of China Unicom in 2023 and the spirit of the two sessions in Shaanxi Province, namely, one goal, two main lines, three guarantees, six major projects and nine measures.

　　Shaanxi Unicom will promote consumption upgrading and industrial upgrading through technological innovation in digital economy, especially cloud computing, big data, Internet of Things, artificial intelligence, blockchain and other technologies, and promote high-quality development in Shaanxi.

One month after the opening of the Sichuan restaurant downstairs, the residents upstairs said that they ＂eat＂ lampblack every day.

　　Mr. Yang complained that the Sichuan restaurant downstairs smoked people.

　　There are several restaurants downstairs in Building 5, Ma ‘anchi East Road. Huang Pan/photo

　　Wenzhou Net News The Sichuan Restaurant downstairs has been open for more than a month, and the residents upstairs in Building No.5, Ma ‘anchi East Road in the urban area report that they "eat" oil smoke almost every day. Mr. Yang said that he had complained to the relevant departments many times and the problem was still difficult to solve.

　　Why is a complaint handled by multiple departments embarrassing? Since last year, the pre-approval of industrial and commercial registration has been changed to post-approval, which greatly facilitates the work of citizens and enterprises, and also tests the cooperative management ability of relevant departments. According to the municipal supervision department, with the introduction of new measures, EIA is no longer a precondition for obtaining a business license, which means that restaurants can take photos first and then EIA. The environmental protection department said that after individual restaurants took photos, they opened without environmental assessment, and the environmental protection department had no right to punish. "There are individuals who exploit the loopholes in the early stage, and our management pressure in the later stage is naturally great." A person from the Municipal Bureau of Urban Management and Administrative Law Enforcement said this.

　　"Representative Online" is concerned today: How to stop the "leaked" lampblack?

　　complain

　　It’s hard to be smoked by "boiled fish" in the restaurant downstairs every day

　　Mr. Yang, a resident, said that the place where he lives was quiet and comfortable. Since the opening of the Sichuan restaurant downstairs, he has been smoked by the smell of "boiled fish" and "fried peppers" every day, which is really hard. "Not to mention the noise of the restaurant, it is this smell that makes us afraid to open the window."

　　Recently, the reporter came to this restaurant downstairs by Mr. Yang as an ordinary customer. The manager revealed that the business license was available, but no environmental assessment was made. When asked about the smell, what should I do if it affects the residents upstairs? The manager said, "The taste is there, but you should understand it when doing business."

　　survey

　　How did the restaurant complained about open?

　　The soot management of catering enterprises from start-up to later stage involves many departments such as municipal supervision, environmental protection, urban management and administrative law enforcement. Then, how did the restaurant complained by Mr. Yang and other residents open, and how should this matter be solved?

　　Lucheng District State Administration for Market Regulation Administrative Examination and Approval Branch Registration Section:

　　Supervise difficult restaurants in advance and get a license before EIA.

　　To open a restaurant for business, you must first obtain a license and a photo (business license and catering service license) from the municipal supervision department.

　　The "Instructions for Individual Industrial and Commercial Households to Apply for Business Licenses" in the Accreditation Hall of State Administration for Market Regulation Shui Xin Prison in Lucheng District lists the materials needed to apply for the above licenses, including the house lease contract or the certificate of free use, the copy or certificate of real estate license, the copy of health certificate, etc., and does not require the provision of "environmental assessment" materials.

　　The staff of the accreditation hall of the Shui Xin Municipal Supervision Office said that after individual industrial and commercial households obtain their licenses, the municipal supervision department will give them a "notice sheet for handling the license first" to remind them to go through relevant procedures with the environmental protection department. "Now the EIA is all post-positioned."

　　The relevant person in charge of the Registration Section of State Administration for Market Regulation Administrative Examination and Approval Branch of Lucheng District said that before, the approval of environmental protection was a prerequisite for obtaining a business license. After the implementation of the new measures, the municipal supervision department only examines the places of catering and employees to see if they have the main qualifications.

　　The person in charge also said that at present, there is no networking between the two departments, which means that if catering enterprises do not go to the environmental protection department to handle the relevant licensing procedures consciously, it is difficult for the environmental protection department to effectively supervise enterprises with possible pollution beforehand.

　　Lucheng District Environmental Protection Bureau Examination and Approval Section:

　　The environmental protection department is responsible for approval and acceptance, but has no law enforcement power.

　　Ni Lujing, chief of the examination and approval section of Lucheng District Environmental Protection Bureau, said that at present, the main basis for the examination and approval of the catering industry by the environmental protection department is the Detailed Rules for the Examination and Approval of Environmental Impact Assessment Documents of Wenzhou Catering and Entertainment Industry, and the EIA application materials of catering enterprises can only pass the examination and approval if they meet the provisions in the Detailed Rules. After the examination and approval, the catering enterprise shall apply to the local environmental protection office for acceptance. Only after the acceptance is qualified can the catering place be officially put into use.

　　However, some people in the environmental protection department admitted frankly that from the submission of EIA materials to the final acceptance, it mainly depends on "corporate consciousness". "The environmental protection department has no law enforcement power, so if catering enterprises don’t take the initiative to do environmental assessment, the environmental protection department can’t punish them."

　　Law Enforcement Supervision Department of Urban Management and Administrative Law Enforcement Bureau:

　　There are many ways for illegal bosses to escape punishment.

　　According to incomplete statistics, at present, there are nearly 3,000 restaurants in Lucheng, Ouhai and Longwan districts, among which small restaurants account for a high proportion.

　　The person in charge of the law enforcement supervision department of the Municipal Bureau of Urban Management and Administrative Law Enforcement said that after receiving complaints about oil fume pollution, law enforcement departments will require catering enterprises to rectify. Law enforcement departments have the right to impose heavy penalties on those who refuse to make rectification or rectification is not in place.

　　"If citizens complain about cooking fume pollution, we need to monitor it, and if the results exceed the standard, we can file a case for investigation." The person in charge said that the soot pollution index needs professional and authoritative testing.

　　In addition, even if a case is filed, many restaurant owners will try their best to escape punishment in law enforcement.

　　"It is often the case that when a restaurant is to be punished, the boss directly closes the store or transfers it, and some even go to the municipal supervision department to change its name." The person in charge said that once the restaurant is transferred or the business owner changes, the law enforcement department can only terminate the investigation procedure.

　　The municipal supervision department revealed that if the materials submitted by individual industrial and commercial households meet the management norms, they must change their names according to law.

　　Discussion on how to stop the "leaked" oil fume.

　　Yesterday, Xu Xudong, a sociologist at Wenzhou University, talked about how to stop the "leaked" lampblack: "The post-EIA procedure gives enterprises more convenience and freedom. At the same time, it also increases the management difficulty of relevant departments. The resolution of this contradiction requires better connection between various departments. "

　　At 10: 00 this morning, Ye Hongkang, deputy director of Lucheng District Market Supervision Administration, Ni Lujing, chief of the examination and approval department of Lucheng District Environmental Protection Bureau, Xie Jianguang, deputy director of Lucheng District Urban Management and Administrative Law Enforcement Bureau, Jiang Yongxiao, a partner and lawyer of Beijing Deheng (Wenzhou) Law Firm, and Chen Yong, a representative of the provincial people’s congress, will be invited to discuss this issue in depth, so please pay attention. You can send Weibo @ Wenzhou. com to represent online, or call the news hotline 56686612 and 88097055 to leave an interactive message.

Face and benefits, which version of Willanda is more worth starting with？

In the exterior part, the front face of the new car is designed with a large polygonal air intake grille, and the interior of the grille is decorated with a black middle net, and an orange decorative strip outlines it to make it look more dynamic. The headlights on both sides are connected with the grille, and the headlights show an inverted "L" shape, which looks very sharp. The raised lines on the hood outline a certain layering, the sunken fog light area outlines a certain three-dimensional sense, and the inside of the through air intake adopts a black middle.

The interior part adopts a "T" center console with a 10.1-inch suspended thin central control large screen in the middle. The interior color is mainly mixed with black and silver, and the design of the whole center console is relatively simple, with a multimedia screen suspended in the middle. The new car is also equipped with electric leather seats, electric sunroof, electric leather seats, intelligent key/one-button start, automatic air conditioning and 7srs airbags.

Willanda’s car is 4665mm long, with a body width of 1855mm and a wheelbase of 2690mm, which is quite satisfactory. In the same class, Willanda’s wheelbase ranks 82nd. As an SUV, its body size does not occupy much advantage in its class, and its internal seating space is only basically enough. After all, it is limited by the length and shape of the body. The skylight of the premium version of the Wilanda dual-engine 2.5L four-wheel drive provides a larger view, which can create a better visual environment and good sensitivity for the rear passengers and increase the light entrance for the whole vehicle. Among the models of the same price and class, the trunk volume of Willanda ranks 13th. The storage space in the car is quite satisfactory and basically sufficient. The interior space of the luggage compartment is relatively regular, with very good longitudinal depth and high expansibility, and the space performance is generally ideal.

Willanda is equipped with a 2.5 engine with a maximum output of 131kW and a maximum torque of 221Nm. 2.5 The power performance of the engine on the Willanda is quite satisfactory, the low torque is weak and the hysteresis can be felt. Ranked 53 rd among 120,000-180,000 SUV models.

Wilanda’s active/passive safety configuration is complete, includingAutomatic parking、Zero tire pressure endurance tire、Automatic parking、Steep slope descent、hill start assist control、knee airbag、HUD head-up display、Anti-lock braking (ABS)、Braking force distribution (EBD/CBC, etc.)、Brake assist (EBA/BAS, etc.)、Traction control (ASR/TCS, etc.)、Active noise reduction、Engine start and stop、Side safety air curtain、Wireless charging of mobile phone、night vision system、LED daytime running lights、Forward reversing radar、Tire pressure monitoring、Steering wheel heating、Body stability control (ESP/DSC, etc.)、Rear reversing radar、Fatigue reminder、Remote parking、Child seat interface、Lane keeping (LKAS)Equal configuration.

Among them,Automatic parkingYou can avoid stepping on the brakes for a long time or needing to pull frequently;Steep slope descentCan safely pass through steep slope road conditions at low speed;knee airbagReduce the injury of the car interior to the occupant’s knees in the secondary collision.

In order to get a more comprehensive and objective understanding of Willanda, you can go to the Easy Car Willanda Forum and browse the messages of users who have bought the car in history.

New Crown Yongjia Toyota launched, priced from 279,800

At 15:00 pm on March 22, a grand launch conference was held in Yongjia. At the event site, the new models were displayed to customers who came to the store, and training instructors were also arranged on site to giveOwners and prospective owners explain the new car. The new car will launch five 2.5L displacement power models in advance, priced from 279,800 – 385,800 yuan. Interested netizens can callCrown Line 400-830-3408Learn about booking a car and buying a car.

Model introduction:

The new car was officially launched on March 12. The new car launched 5 2.5L models in advance, priced at 279,800 – 385,800 yuan. The new 2.0T model is expected to be launched in the second half of the year, with 173kW and 350Nm. The new and unique front face is focused on the low transparent crystal texture stacked wing three-dimensional front grille, supplemented by a new LOGO, forming a striking and clear three-dimensional structure, which looks very atmospheric.

The new crown body size has been fine-tuned on the basis of the old car. The length, width and height of the new car are 5020mm/1805mm/1480mm respectively, and the wheelbase remains unchanged at 2925mm. The body size is similar to the long axis version of the 5 series, but the wheelbase is only at the same level as the 3 series Li.

Interior: Dual touch screen collocation is a highlight, and the package material is delicate

The new car has also undergone drastic changes, aiming to highlight the sense of youth and technology. Among the most eye-catching are the two huge central control LCD screens located above the center console. The touch design replaces most of the physical buttons, and the system’s integration and logic are commendable. At the same time, there have been changes in aspects such as the steering wheel and the configuration of the car. In the current one, the new interior is full of personality.

Power configuration: the same as the current model, with rich safety configuration

The new model will offer 2.5L naturally aspirated and 2.0T power, of which the 2.5L model launched earlier is 142kW with a peak torque of 236Nm. The 2.0T model will not be launched until the second half of this year. In the transmission part, it is matched with 6 speeds.

In terms of safety configuration, the new series comes standard with front knees, front sides and air curtains, which are quite rich. However, like panoramic images, such configurations that are actually very practical in actual driving are only available on top models.

Yongjia’s new listing press conference live report

To get a glimpse of the new face of the new crown, hundreds of car owners came to the Yongjia Toyota 4S store.

Yongjia Toyota sales manager, service manager and new car unveiling guests take a group photo

Yongjia Toyota sales manager held a grand new car delivery ceremony for the first young car owner, and also presented a gold-plated crown model.

Yongjia Toyota sends personalized gifts to customers present

The new crown has changed the style of the old model that is too "moderate", and the new car design is more youthful and fashionable.Younger is also the main design trend of the Toyota brand in recent years. From the new Corolla to the new crown, more revolutionary innovative designs have been adopted. At the same time, it also includes more avant-garde configurations and power systems to satisfy the appetite of younger consumers. From the price point of view, buying 3 series and C class can buy a larger and more business-oriented crown, and it is not old-fashioned. I personally think the crown is more suitable for the social elite in their 30s.

Related reading:

yongjia

Address: No. 202, Yingbin Road, Dashi, Panyu District (500 meters ahead of Xiangjiang Hotel)

Telephone: 400-680-6903

Imported Volvo, which is famous for its safety, rusts in less than half a year!

This Volvo XC90 has a high failure rate!

Mr. Li of Hangzhou bought a Volvo XC90 in November last year, which belongs to the highest grade model of this brand. However, so far, it has appeared one after another.If the co-pilot doesn’t sit, it will give an alarm, the cushion frame below will rust, the skylight will leak, the engine fault light will flash, and the airbag will fail.Wait a series of questions.

Complainant Mr. Li:

First of all, the first problem is that I found that this seat can’t be adjusted. At first, I couldn’t adjust it. I left it in a hurry. When I used it again, I found that it couldn’t be used. When I went to the 4S shop again, I found that there was a missing accessory. Then I found that the seat would automatically alarm.

Mr. Li said that the initial minor problem was solved after one or two repairs, but with the arrival of the rainy season, the skylight leaked again.

Complainant Mr. Li:

When I went to the 4S shop, he measured that the skylight water pipe was not blocked and the running water was very smooth. How can it leak? ) When the corners of the water pipes are overlapped, the rivets may not be firmly combined. The first time I went there, I didn’t check the problem. I asked him to pad the paper, and the second time I suspected it was this place, and then I handled it. (Is it handled now? ) Now who knows, it will take a long time. If it rains for two or three days, there will always be water accumulation, and there will always be water seepage grooves in the skylight.

Two days after the interview, we contacted Mr. Li again. He said that the repaired skylight was leaking again. It seems that the 4S shop didn’t get the idea.

In addition, the trouble that made Mr. Li uneasy also came. When repairing the fault that the co-pilot called the police without sitting, he found that the co-pilot cushion skeleton was badly rusted. Could it be a soaking car?

Complainant Mr. Li:

The car that I haven’t had for half a year is rusted like this. I suspect it is a soaking car. The 4S shop told me that it was by sea. How did it rust like this by sea?

Special technician Zheng Jun:

I just looked at it. It’s unlikely. I suspect that it is not the problem of going by sea or land. I suspect that the paint was not in place when spraying the skeleton.

Complainant Mr. Li:

When the after-sales manager called me, I recorded it. He also admitted that there were many abnormal problems in the car, so you should treat the abnormal problems as abnormal instead of normal. I bought your car for quality. There are 70 to 80 problems in the new car for half a year. How can you let a consumer trust you? The single problem may not be too big, but there are so many problems in the car for half a year.

Special technician Zheng Jun:

Did the 4S shop give you any solutions?

Complainant Mr. Li:

He said he would extend my warranty for two years, and verbally promised to return my car if there were so many failure rates again.

Special technician Zheng Jun:

Then this can’t just be a verbal promise.

Complainant Mr. Li:

I asked him to write a paper certificate and he didn’t agree.

Rust condition of passenger seat skeleton

As for why the seat frame rusts, Manager Bao of the sales department of Hangzhou Zhongwo 4S Store said so.