标签： 武汉生活

　　　　　　 CCTV News:November 4th is Russian People’s Unity Day. Russian President Vladimir Putin said in a speech in the Kremlin that unity, patriotism and not accepting external pressure are the innate qualities and personalities of the Russian people.

　　　　　　 Putin said that the Russian people have always adhered to unity and patriotism, whether in times of severe tests or when solving major development tasks. Loyalty to the motherland and not accepting external pressure are the innate "genetic and cultural codes" of the Russian people.

Putin (data map)

　　　　　　 "People’s Solidarity Day" was set up to commemorate the Russian Rebels’ expulsion of Polish troops from the Principality of Moscow in 1612. This incident promoted the end of the "chaotic era" in Russia in the 17th century and symbolized the unity of the Russian people.

　　　　　　 Russian expert: NATO’s relations with Russia will only deteriorate in the future.

　　　　　　 On October 9, local time, NATO Secretary General Stoltenberg released a heavy news at the NATO parliamentary assembly in Bucharest, saying that a new force would be formed in Romania to contain Russia’s military presence in the Black Sea region.

　　　　　　 This new unit is mainly composed of Romanian soldiers, including soldiers from nine other NATO member countries such as Canada and Italy, with a maximum of 4,000 people. The new troops will complement the 900 American soldiers currently in Romania and strengthen NATO’s military strength in the Black Sea region. In addition, NATO will also increase the frequency of visits to Romanian and Bulgarian ports and increase the number of exercises.

　　　　　　 Stoltenberg said that NATO’s expansion of its military presence in the East Wing aims to adapt to new security challenges and improve its ability to respond to threats. NATO troops in Estonia, Lithuania, Latvia and Poland are all in a "combat state". He also stressed the importance of NATO’s military presence in the Black Sea region.

　　　　　　 However, Stoltenberg also said that NATO does not want to isolate Russia, nor does it want a "new cold war". NATO’s actions are entirely for defense rather than attack.

　　　　　　 NATO will hold a total of 18 military exercises in the Black Sea region this year, and the scale has expanded compared with last year. The largest exercise — — "Saber Guardian 2017" featured about 25,000 soldiers from 22 NATO member countries and partner countries. The Russian side accused NATO of trying to build a siege against Russia and threatening regional stability.

NATO "Saber Guardian" exercise

　　　　　　 Stoltenberg recently stated many times on the relations between NATO and Russia that NATO will continue to work hard to improve relations with Russia. However, Moscow experts believe that Stoltenberg’s remarks about efforts to improve relations with Russia are platitudes, and that’s all. NATO has not taken any practical measures. He predicts that relations between NATO and Russia will only deteriorate in the next few years, and even does not rule out that limited military conflicts may break out between the two sides.

　　　　　　 [US-Russian strategic confrontation reached a high point? 】 US Defense Minister and Vice President visited nuclear arsenals one after another.

　　　　　　 Minot Air Force Base, located in North Dakota, USA, is one of the bases of American B-52 bombers and one of the largest nuclear arsenals in the United States. Following the visit of US Secretary of Defense Matisse on September 13th, US Vice President Burns visited the base again on October 27th.

　　　　　　 Burns said: "Minot Air Force Base has 26 B-52 bombers and 150 intercontinental ballistic missiles, which are in the United States ‘ Nuclear triangle ’ You are the only base where both space-based and land-based nuclear forces are deployed. Minot Air Force Base is crucial to the implementation of the global strike order. It will provide strategic deterrence, global strike and combat support at any time and anywhere. "

Us B-52 bomber

　　　　　　 The "nuclear triangle" mentioned by Burns is the abbreviation of sea-based, land-based and air-based nuclear weapons launching methods, and Minot Air Force Base is the only military base in the United States where strategic bombers and land-based intercontinental ballistic missiles are deployed at the same time, and it is also one of the largest nuclear arsenals in the United States. On the same day, Burns inspected the 91st intercontinental ballistic missile unit of the US Air Force stationed at the base, which was mainly responsible for the launch of the "Militia -3" intercontinental ballistic missile. At present, one-third of the 400 "militia -3" owned by the United States are deployed at this base.

　　　　　　 On September 13th, local time, US Secretary of Defense Matisse also inspected the base. He inspected the missile warning facilities and nuclear arsenal, and personally went to the "Militia -3" missile launch control room. Matisse stressed that in order to ensure nuclear deterrence, the United States must have a trinity nuclear weapons system of land, sea and air. In August this year, Matisse also inspected the Kitshep Naval Base with sea-based nuclear weapons delivery capability and completed the inspection of the "nuclear triangle".

　　　　　　 Regarding the actions of the United States in nuclear weapons, as early as the 23rd of this month, a number of American media suddenly broke the news that the US Air Force was preparing to restart the B-52H strategic bomber and resume the 24-hour alert duty during the Cold War. This news quickly attracted the attention of the outside world, because it was an "unprecedented state" since the end of the Cold War. The US Air Force issued a statement on the 24th, saying that the plan to restore the 24-hour alert of the B-52H does exist, but it is not "imminent".

　　　　　　 [US-Russian strategic confrontation reached a high point? 】 Putin personally led the Russian army’s land, sea and air nuclear weapons exercise

　　　　　　 The United States develops its nuclear arsenal, and Russia does not show weakness. Two days ago, Russia held the first joint exercise of land, sea and air nuclear weapons in five years. Nuclear submarines, land-based intercontinental missiles and strategic bombers tested missiles on the same day, and there was a lot of movement.

　　　　　　 In this "Trinity" nuclear exercise, the main forces of Russia’s nuclear weapons throwing platforms on land, sea and air were all unveiled, and the movement was not small. Russian President Vladimir Putin personally directed and launched four ballistic missiles.

　　　　　　 Land-based nuclear power: The "White Poplar" intercontinental ballistic missile was launched from the Plesetsk space launch site and accurately hit the target of the Kula shooting range in Kamchatka Peninsula.

Russian military test-fired "Baiyang" intercontinental ballistic missile (data map)

　　　　　　 Space-based nuclear forces: Tu -160, Tu -95MS and Tu -22M3 long-range strategic bombers took off from three different airports in eastern, southwestern and western Russia, and fired several cruise missiles at the shooting ranges in kamchatka peninsula, far east Russia, Komi Republic in northwest Russia and western Kazakhstan, respectively, and hit the targets accurately.

　　　　　　 In terms of sea-based nuclear power, the Pacific Fleet nuclear submarine completed two ballistic missiles volley from the waters of Okhotsk Sea to the shooting range of Arkhangelsk State, while the Northern Fleet submarine launched one ballistic missile from the waters of Barents Sea to the shooting range of Kula.

　　　　　　 Peskov, press secretary of the Russian President, said that the nuclear trinity test was a normal and routine process, which had nothing to do with international events.

　　　　　　 In addition to test-firing active intercontinental missiles, Russia is still developing another "deadly weapon". According to relevant sources of Russian Defense Ministry, Russia plans to conduct two drop tests on the heavy liquid fuel RS-28 "sarmat" intercontinental ballistic missile at Plesetsk space launch site before the end of 2017. According to public information, sarmat will be the most powerful nuclear missile in the world after its service — — Its maximum range can reach 16,000 kilometers, and it can carry 10-15 sub-missile heads with a hit accuracy of 150-200 meters. General Karakayev, the Russian strategic missile force, said in December last year that Russia plans to put the "sarmat" intercontinental ballistic missile into service in 2019-2020, which can restrain the anti-missile system of the United States today, in the future and in the further future, and can "tear up" the anti-missile system of the United States.

Porsche China announced that the new Taycan rear-drive version has started pre-sale in China. A total of 1 model was launched this time, with a guide price of 928,000 yuan.

The new Taycan rear-drive version has an acceleration of 4.8s, a maximum speed of 230km/h, and a maximum output power of 380kW (517PS).

The new Taycan rear-drive version comes standard with an 89kWh high-performance battery, with an energy recovery of 400kW and a battery life of 604km under CLTC comprehensive operating conditions; fast charging power of 320kW, from 10% to 80% in 18 minutes.

The official said that the new Taycan rear-drive version is equipped with an adaptive air suspension with dual-chamber dual-valve technology, achieving higher handling accuracy and driving comfort.

The new Taycan rear-drive version comes standard with Porsche Sport Chrono components, BOSE surround sound system, comfortable entry, and parking assistance with panoramic imaging system; it offers localized applications such as QQ Music, and deeply integrates Apple CarPlay into the display and various functions to meet the preferences and habits of different groups of people.

Many car owners often complain that the fuel consumption of their cars is too high or the battery life is too poor. It can be seen that this problem is really a big problem, and everyone is very concerned about it in this respect. Let’s take you to appreciate its style.

Let’s take a look at the appearance of Magotan. The front line of Magotan is simple, and it looks sporty with the multi-spoke mesh. Coupled with the domineering headlights, the overall look is very beautiful. The car is equipped with LED daytime running lights, front fog lights, automatic opening and closing, delayed closing and so on. Coming to the side of the car, the body size of the car is 4866 mm * 1832 mm * 1479 mm. The car adopts simplified lines, and the side circumference looks very solid. With large-sized thick-walled tires, the overall visual effect is very fashionable and dynamic. Looking back, the rear of the car echoes the front of the car, and the taillights are very avant-garde. Coupled with the unique exhaust pipe, the sense of neatness is vivid.

Coming into the Magotan car, the interior of Magotan looks very simple and the visual effect is very good. The steering wheel of the car is very stable in shape and made of leather, which looks a little more fashionable and dynamic. Take a look at the central control. The design of the center console is reasonable, which makes the interior style impressive and looks cute. The dashboard and seats give people a good feeling, too. Let’s take a look. The dashboard design is remarkable and full of technology. The car adopts imitation leather seats, equipped with functions such as electric adjustment of auxiliary seats, electric adjustment of seats, and seat proportion tilting, and it is very comfortable to ride.

Magotan is matched with a wet dual clutch (DCT) gearbox, with an acceleration time of 8.9s seconds per 100 kilometers, which has good power performance and is completely OK for daily use.

Magotan is equipped with driving mode selection, remote control key, interior atmosphere light, engine start and stop, traction control (ASR/TCS, etc.) and other configurations, which is worthy of praise.

This car performs well in terms of space and configuration. As for the design, everyone has everyone’s aesthetics. If you are interested, you might as well take a test drive, which will definitely bring you a different feeling.

　　　　　　　On September 24th, Li Keqiang, Premier of the State Council of the People’s Republic of China presided over the the State Council executive meeting, deployed and improved the accelerated depreciation policy of fixed assets, promoted technological transformation of enterprises, supported the entrepreneurial innovation of small and medium-sized enterprises, and decided to further open the domestic express delivery market and promote fair and orderly competition between domestic and foreign investors.

　　　　 The meeting pointed out that in order to conform to the trend of the new technological revolution and push China’s economy to the middle and high-end level, we must make greater efforts to promote technological transformation of enterprises. It is of great significance for traditional industries to "break through the cocoon", enhance the stamina and vitality of economic development, and achieve quality upgrading, efficiency upgrading and sustained and stable growth by improving the current accelerated depreciation policy of fixed assets, reducing the tax burden, speeding up enterprise equipment renewal, scientific research and innovation, expanding manufacturing investment and promoting mass entrepreneurship. The meeting confirmed that, first, the newly purchased instruments and equipment for R&D in all industries after January 1, 2014, with a unit value of no more than 1 million yuan, are allowed to be included in the current cost at one time and deducted before tax; If it exceeds 1 million yuan, the depreciation period can be shortened by 60%, or the depreciation can be accelerated by methods such as double declining balance. Second, fixed assets with a unit value of no more than 5,000 yuan held by enterprises in all industries are allowed to be included in the current cost at one time and deducted before tax. Third, for the fixed assets newly purchased by enterprises in biopharmaceutical manufacturing, special equipment manufacturing, railway, shipbuilding, aerospace and other transportation equipment manufacturing, computer, communication and other electronic equipment manufacturing, instrumentation manufacturing, information transmission, software and information technology service industries after January 1, 2014, it is allowed to shorten the depreciation period by 60% of the specified period, or adopt accelerated depreciation methods such as double declining balance to promote the expansion of imports of high-tech products. According to the implementation, timely expand the scope of the industry to which the policy applies.The meeting called for speeding up the implementation of the above policies, striving to arm "Made in China" with advanced technology and equipment, and launching products with higher added value and stronger market competitiveness.

　　　　 The meeting held that expanding all-round active opening-up and creating a business environment in which domestic and foreign-funded enterprises are treated equally and compete fairly is a major policy orientation that China has long adhered to. At present, China’s international express delivery business has been basically opened to foreign investment, and domestic express delivery business in major cities has also been opened to some foreign-funded enterprises in batches. According to China’s commitment when it joined the World Trade Organization, further opening up the domestic market and allowing domestic and foreign express delivery enterprises to compete on the same stage will help to force domestic enterprises to improve their management and service level, so that consumers have more choices. At the same time, promoting the express delivery industry to become the "dark horse" of the development of modern service industry can also promote the logistics industry to a higher level, further invigorate circulation, stimulate domestic demand, increase social employment, and actively contribute to stabilizing growth, restructuring and benefiting people’s livelihood. The meeting decided to fully open the domestic parcel delivery market, and issue business licenses to foreign-funded express delivery enterprises that meet the licensing conditions according to the approved business scope and business area. The meeting stressed that it is necessary to adhere to the combination of release and management to ensure the orderly and healthy development of the express delivery industry. First, improve the business licensing procedures and strengthen the qualification review. Simplify procedures and improve efficiency. The second is to promote the joint development of express delivery, e-commerce and manufacturing, smoothly connect with the comprehensive transportation system, and support the solution of problems such as the difficulty of urban express delivery vehicles. Ensure the safety of delivery. The third is to encourage the merger and reorganization of express delivery enterprises, and improve and implement the systems of reorganization filing and review of foreign mergers and acquisitions. Strengthen the management of agents and franchisees, and seriously investigate and deal with illegal business operations, out-of-scope business operations, illegal agency and other acts. Make express delivery, a sunrise industry, more prosperous and create conditions for stimulating residents’ consumption.Convenient for the vast number of businesses and hundreds of millions of people.

　　　　The meeting also studied other matters.

The competition in the automobile market is still very fierce. What Xiaobian brings today is. Let’s take a look at it next.

Let’s take a look at the appearance of Xuanjie Pro EV first. The whole front of Xuanjie Pro EV looks very delicate and sporty. Combined with the headlights, the grade of the whole vehicle is improved. The car is equipped with LED daytime running lights, delayed shutdown and so on. Coming to the side of the car body, the size of the car body is 4400 mm * 1831 mm * 1646 mm. The car adopts spiritual lines, and the side of the car presents a personalized design style. With large-sized thick-walled tires, the overall visual effect is very sharp. In terms of the rear end, the rear end looks very simple and fashionable, and the taillights give people a very sharp feeling, and the overall shape is still very attractive.

In terms of interior, the interior presents a unique design style, which makes people feel very exquisite. The car looks very good outside the steering wheel, and it is equipped with functions such as manual adjustment of the steering wheel up and down, which looks a little more concise. Take a look at the central control, and decorate it with a 10.25-inch central control screen, which makes the interior design quite layered and gives people a feeling of being domineering and stylish. Let Xiaobian introduce the dashboard and seats. The car is equipped with a cold dashboard and the design is softer. The car adopts imitation leather seats, which are spacious and thick, with exquisite materials and comfortable ride.

Xuanjie Pro EV is equipped with a motor with a total power of 120KW and a total torque of 280N.m It has good acceleration, excellent cruising range and good power performance.

Xuanjie Pro EV is equipped with driving mode selection, remote control key, traction control (ASR/TCS, etc.), support for CarLife, Bluetooth /WIFI connection and other configurations, which is worthy of praise.

Many people buy SUVs because of their stronger passability. The car is practical and fully equipped, and it is a good helper for home travel. If you plan to buy a car and the budget is not particularly adequate, this model is worth considering.

　　[car home Information] On July 26th, at the event of Jietu Brand LOGO Rejuvenation Tasting, the official officially released a brand-new LOGO. It is reported that the brand-new logo was jointly created by Jietu users and Professor He Jun of the Central Academy of Fine Arts.

　　The brand-new Jietu LOGO consists of the variant of the word "Xing" in Chinese official script calligraphy and the initials J and T of Jietu Chinese Pinyin, and the+sign of "Travel+"is integrated in the center, which represents that Jietu brand is born for the line and goes far away. The new LOGO incorporates youthful and trendy elements, retaining the simplest lines and colors. In the future, the LOGO will be used on the brand-new model of Jietu.

　　Prior to this, Jetway also announced that in June 2022, Jetway sold 15,036 vehicles, a year-on-year increase of 32.8%; 61,047 vehicles were sold from January to June 2022; In the four years since its establishment, Jetway has 550,000 users and 14.5 million fans, and the development speed of Jetway is obvious to all. In the future, Jietu will "travel+"strategy. In the future product level, Jietu will build a 4+3+N product layout plan, namely SUV series, cross-border series and hybrid series.

　　Among them, the SUV series will grow into four models from the existing (|) and Jetway X90 models, including Jetway Dasheng (code X-1) for young people, which will be launched this year, and Jetway X-2, which is under development, which will be launched in 2023. In the hybrid series, all products of Jietu will plan hybrid models simultaneously. Among them, the upcoming Dasheng will focus on youth, intelligence and technology, and will be equipped with HUD head-up display, umbrella storage, multi-navigation software, environmental awareness screen, combat driving mode, queen’s car, rest mode, advanced driving assistance, privately enjoyed headrest+singing bar, etc.

　　The products in the cross-border series are more abundant, including the Jetway T-1, which has already appeared as a concept car. In addition, Jetway also provides two hard-core off-road vehicles, T-2 and T-3, in the cross-border series; P-2 and P-3 hard-core pickups and V-2 and V-3 MPVs. By then, Jetway’s product line will cover multiple markets.

　　Among them, the mass production version of Jetway T-1 will be launched in the third quarter of 2023, focusing on science and technology, hard-core and tide field. It is built based on the new Kunlun architecture and continues the hard-core design concept of the T-X concept car, providing 5-seat /7-seat options. The power will be equipped with 1.6T and 2.0T engines, and two-wheel drive and four-wheel drive versions are available. In terms of specific configuration, it will provide platform luggage rack, vehicle-mounted drone, second row seat leveling, audio-visual entertainment, 220V power supply, intelligent reminder, multi-driving mode, multi-storage space, travel backpack and so on.

　　Jietu announced that it will complete the renovation and upgrading of 100 4S stores in 2022 and 300 4S stores in 2023. At the same time, the annual sales target will reach 500,000 in 2023 and 1 million vehicles in 2026. In terms of overseas markets, Jietu has become the first camp of China’s automobile export brands, entering many countries including Asia, Africa and South America, and further expanding to 60+ countries or regions around the world in the future, completing 1,200+distribution channels, and achieving the goal of exporting 200,000 vehicles in 2023. (Text/car home Wuyuan)

　　China Meteorological News correspondent Dong Yongchun Wang Ting

　　Recently, the "Guangdong Province Air Pollution Prevention and Control Strengthening Measures and Division of Labor Plan" (hereinafter referred to as the "Strengthening Plan") issued by the General Office of the Guangdong Provincial Government proposed that "all localities should fully consider the long-term impact of climate change when planning, designing and approving urban infrastructure construction and renovation projects, and prohibit the construction of new high-rise buildings on urban ventilation corridors." This is also the first time that urban ventilation corridors have been written into Guangdong’s environmental protection policy.

　　In recent years, Beijing, Hangzhou, Wuhan, Xi ‘an, Chengdu, Guangzhou, Huizhou and other places have brought ventilation corridors into the vision of planning and decision-making. Among them, Guangzhou was listed as the second batch of national urban design pilot cities by the Ministry of Housing and Urban-Rural Development this year. The overall urban design of Guangzhou, which is being compiled, also requires further establishment of a more detailed ventilation corridor scheme.

　　Why do ventilation corridors attract the attention of more and more cities? How should it be planned and constructed, and will the areas along the line face large-scale demolition and construction? With these questions, the author interviewed Wang Chunlin, deputy director of Guangzhou Climate Center and a senior engineer at the research level.

　　Why build it?

　　-It can reduce air pollution and alleviate the urban heat island effect.

　　As early as two or three years ago, urban ventilation corridor has been included in the research field of Guangdong meteorological department. According to Wang Chunlin, the leader of the research team, the urban ventilation corridor is a passage for introducing fresh cold and humid air to the urban area with the purpose of improving the air mobility of the city, alleviating the heat island effect and improving human comfort. Generally speaking, the "ventilation corridor" is just like the "urban air duct", similar to a long and narrow ventilation duct, which can make the urban wind "pass through the hall".

　　"Our ventilation corridor planning is mainly based on the Technical Guide for Urban Ventilation Corridor Planning issued by China Meteorological Bureau at the end of 2015." Wang Chunlin said that many developed countries and regions have already started in this respect. Munich, Germany began the practice of introducing ventilation corridors into urban planning in the 1970s. Tokyo, Japan has long established a five-level ventilation corridor system combining mountains, valleys, sea, land and parks.

　　In 2006, the Hong Kong Planning Standards and Guidelines set out the definition and function of urban ventilation corridors (air ducts) in urban planning for the first time: ventilation corridors should be connected by large open areas, such as main roads, connected open spaces, beautification zones, non-construction sites, construction line backward zones and low-rise buildings. Ventilation corridors should extend in the direction of prevailing winds, and if feasible, other natural gas flows, including ocean, land and valley winds, should be maintained or guided to blow to urban areas.

　　Wang Chunlin believes that ventilation corridors have many advantages. "First, they can effectively alleviate the various impacts caused by urban heat island effect; second, they can help urban air flow and pollution diffusion; and third, they can greatly improve human comfort in terms of temperature and urban air quality."

　　Take Beijing as an example. In 2012, when the heat island area of six districts in the city center was serious, it accounted for 77% of the total area. In recent years, the trend of urban wind speed decreasing is also obvious. In this regard, He Yong, deputy director of the Planning Research Office of Beijing Urban Planning and Design Institute, said that the ventilation corridor is not to "create wind", but to make the cold air in the suburbs flow to the urban area more smoothly and "change" the hot air in the urban area, thus effectively reducing the urban temperature.

　　How to lay out?

　　-big data analysis of wind environment and planning according to local conditions

　　For cities with different geographical conditions, how to set the direction and route of ventilation corridors?

　　At present, the team led by Wang Chunlin is studying and experimenting to analyze the urban wind environment through huge data analysis and computer simulation experiments, which is an important basis for planning urban ventilation corridors. He introduced that at present, the analysis of urban wind environment mainly adopts the Mesoscale Meteorological Model (WRF), which is a new generation of mesoscale forecasting model and assimilation system jointly developed by American meteorological circles. The land surface process model in WRF is coupled with the Urban Canopy Model (UCM). By adjusting the regional urban parameters such as urban reflectivity and roughness, it has a good simulation ability for urban heat storage effect, flow field and precipitation distribution.

　　"To analyze the wind environment, we must first master a large number of urban underlying surface data and wind observation data." Regarding the design principle of urban ventilation corridor, Wang Chunlin said that the data of urban underlying surface include the distribution, height and geometric structure of buildings, as well as the distribution of terrain height, green space and water bodies. Wind observation data include wind force, wind direction and other elements. Taking Guangzhou as an example, the available wind observation data include the data of five national weather stations in Guangzhou in recent 30 years and about 300 regional weather stations in recent 10 years.

　　"Secondly, the fine-grid meteorological dynamic model is an important tool to carry out urban wind environment analysis and ventilation corridor planning effect evaluation." Wang Chunlin said that Guangzhou Meteorological Department has a large number of historical data and 400 trillion supercomputers per second, which can make statistical analysis on the output results of massive models and quantitatively compare the ecological benefits of different ventilation corridor planning schemes.

　　In the planning process, adapting to local conditions is an important principle. On the one hand, the existing ecological cold sources such as green space, parks, forests, rivers and lakes should be included in the wind gallery, which can better protect the ecological cold sources and make them play the role of purifying the air and reducing the urban heat island effect. On the other hand, the existing urban pattern should be fully respected, and the planning of wind corridors should try to avoid the existing large-scale buildings and avoid a large number of demolition.

　　"Just like urban roads have roads and paths, ventilation corridors are divided into first-class corridors and second-class corridors." Wang Chunlin said that the first-class corridor is equivalent to the main road and is the main ventilation corridor; The second-level corridor should be built along the area with great ventilation potential, and try to make up for the "broken" corridor area that the first-level corridor cannot guarantee.

　　At present, there are five or more main ventilation corridors in Beijing, Hangzhou, Chengdu and other cities, and there may be more secondary corridors.

　　On the principle of division of labor and design, the design of the first-class ventilation corridor should be as parallel or nearly parallel as possible to the dominant wind direction of the city, and make full use of the ecological cold sources such as green space, mountains and rivers with large area and good ecological environment. The setting of the secondary corridor should play the role of assisting and extending the ventilation efficiency of the primary ventilation corridor, and communicating and connecting the local ecological cold source and the areas with poor wind environment. With the help of urban trunk roads, squares, water systems and other open spaces, the final "wind corridor network" should be formed. The setting of the width, length, direction and land use control of the wind corridor should be combined with the refined wind and heat distribution characteristics and realistic construction conditions in the urban area.

　　What are the design principles?

　　-determine the direction of the wind corridor according to the prevailing wind direction in the city.

　　During the implementation of urban ventilation corridor planning, the stipulation that "no new high-rise buildings are built on urban ventilation corridors" mentioned in Guangdong’s "Strengthening Plan" has attracted much attention.

　　Does this mean that the existing buildings will be demolished and built? Wang Chunlin believes that the existing high-rise buildings should not be demolished artificially, but should be demolished by natural elimination after reaching the service life, so as not to waste resources.

　　It is forbidden to build new high-rise buildings on urban ventilation corridors for two reasons: first, high-rise buildings will increase the roughness of urban underlying surface and reduce the air circulation efficiency of air corridors, which is the bottleneck area of air flow. Second, the high-rise building on the wind gallery has a large windward wind speed, which has many disadvantages: a large area of quiet wind zone is formed at the back of the high-rise building, which will be extremely stuffy in summer and affect comfort; If there are pollutants in the back of it, it will cause air pollution in the near-surface layer and affect human health.

　　"Even if some buildings are very tall, whether they will have a great impact on the wind gallery requires specific analysis." Wang Chunlin said. It is assumed that the new central axis of Guangzhou, which extends from Tianhe North Road to flower city square, is also set as a ventilation corridor, and the towering small waist (also known as Guang Zhouta) is just in the middle below the central axis. However, due to the slender structure of the small waist building and the hollow design, it will not cause great obstruction to the wind corridor.

　　The prevailing wind direction in the city is the decisive factor affecting the direction of the wind corridor. Wang Chunlin said that taking many cities in the Pearl River Delta, such as Guangzhou, for example, the southeast wind prevails in summer and the northerly wind prevails in winter, and the north-south wind corridor is conducive to utilizing the ecological cold source in Conghua and other places in the north and the ocean cold source in the south.

　　At present, the Master Urban Design of Guangzhou, which is being compiled in Guangzhou, also clearly requires that the main corridors where the dominant wind direction enters the city should be determined, and the strategy of "making wind, gathering wind and ventilating" should be put forward to establish the urban wind corridors, water corridors, green corridors and visual corridors in Guangzhou.

　　How to implement the plan?

　　-there is still a lack of unified standards, and all localities are exploring.

　　When the Eight Immortals crossed the sea, they all showed their magical powers. In fact, at present, there is no uniform standard for urban ventilation corridors in mainland China, and all localities are still groping for it in practice.

　　Wang Chunlin revealed that Guangzhou was listed as the second batch of urban design pilot cities this year. In this year’s overall urban design of Guangzhou, the planning and design department initially planned and designed the ventilation corridor system of Guangzhou based on the numerical simulation of Guangzhou’s wind environment.

　　However, many cities that are more advanced in the research and planning of ventilation corridors also face some confusion in practice. For example, in many ventilation corridors planned and built in Beijing, there are still many high-rise and dense building communities, which will become the bottleneck area of air flow.

　　Wang Chunlin believes that the planning and improvement of urban ventilation corridors need to be fully discussed and communicated with urban planning departments to jointly promote the planning and implementation of ventilation corridors.

　　In fact, in addition to directly planning urban ventilation corridors, many places have also taken some measures to improve urban microclimate. For example, Shenzhen will treat the first floor of real estate as an overhead floor into the overall urban planning, and rationally arrange the layout of urban buildings; Thirty pilot cities, including Xiamen, Chongqing and Nanning, have accelerated the construction of "sponge cities".

　　Wang Chunlin revealed that the changes of local ventilation volume and heat island intensity before and after ventilation corridor planning can be accomplished by means of numerical simulation, field observation or wind tunnel test. Among them, the fine simulation of local wind environment can be carried out by computational fluid dynamics (CFD). He introduced that CFD is a combination of modern fluid mechanics, numerical mathematics and computer science. Using electronic computer as a tool, it applies various discrete mathematical methods to conduct numerical experiments, computer simulations and analytical studies on various problems of fluid mechanics in order to solve various practical problems. However, due to the huge demand for computing resources, CFD technology is usually applied to the simulation and analysis of wind field in residential areas, and a wider range of applications can be tried in the planning of urban ventilation corridors in the future.

　　Link: Controversy about Ventilation Corridor

　　There is a classic line in the movie "Be there or be square": Blast the Himalayas into a 50-kilometer-wide hole, let the warm and humid air from the Indian Ocean blow into the Qinghai-Tibet Plateau through Nepal, completely change the harsh ecological environment there, take off the backward hat there, and turn the Qinghai-Tibet Plateau into a beautiful and rich land of fish and rice. This line is also used to ridicule the ventilation corridor. Indeed, a new engineering design is still in the stage of scientific demonstration, which will cause a lot of controversy.

　　One of the focuses of controversy is whether the smog can be blown away. Opponents believe that the main reason for the smog in winter is that the cold air is weak, and the warm and humid air from the south goes north, and after the stalemate, it forms static weather. If you want to disperse the smog through the ventilation corridor, you must have wind first, but there is no wind in calm weather. Supporters believe that the existing research proves that the formation of ventilation corridor network in the central city is effective in improving the microclimate and has a certain auxiliary role in promoting the diffusion of pollutants.

　　Another focus of controversy is whether successful experiences can be replicated. According to reports, there is a burning wind every year in Munich, Germany, and five urban ventilation corridors are planned and built locally to let the burning wind pass through the city and take out the dirty air in the city. The effect is very good. However, some opponents believe that the wind burning in Munich is caused by the geographical factors on the northern slope of the Alps. Unlike the climate background of many cities, it is still unknown how much the ventilation corridor can play in other cities.

　　There are still some controversies surrounding the practical difficulties in construction. Some people think that urban construction is basically taking shape, and the landing of ventilation corridors in the future depends on urban planning, which is difficult to achieve overnight. Others question whether smog and heat waves will affect the surrounding areas if they are successfully dispersed by ventilation corridors. Supporters said, first, there is no need to "make a big move" on urban construction, just make a slight adjustment; Second, the pollutants carried away by air flow will not only spread to the open areas around the city, but also spread to the sky, and it is a process of gradual dilution, which will not affect the surrounding areas.(bian Ji)

　　(Source: China Meteorological News August 21, 2017 Third Edition Editor: Tang Miao)

OneShot continuity theory and no wake-up

　　There are two "high-frequency words" in the test of car voice control in the past year-one shot continuous theory and no wake-up. Besides "recognition rate", they are also the most attractive voice control functions.

　　Have you ever wondered why you have to wake up words? Because people can easily trigger some functions in voice control in daily communication,Wake-up words are defined as a time period (after waking up to the end of the conversation), during which the speech engine will process the feedback of what you said.. Under the current voice control technology, if there is no wake-up word, you will be disturbed to autism by the voice control in the car.

　　Then why can’t we just call each other by their first names, just like daily communication? For example: Li Xiang, help me turn on the air conditioner. It is also because the names of two or three words are easily mistaken, which leads to false triggering of voice control.Therefore, wake-up words are usually set to "overlapping words", "greeting+name" and "so-and-so classmate" to reduce the probability of false triggering..

　　But this also leads to a problem-the communication mode between people is not like this at all! The picture below is the basic car voice control communication mode. Do you think it is particularly familiar?

　　What does OneShot mean? It’s simple.That is, wake-up words can be said together with instructions, instead of saying wake-up words first and waiting for the system to respond before giving instructions.. With the OneShot continuous speaking function, it is like this.

　　What does the word "no wake-up" mean?As the name implies, even the wake-up words are not needed, and you don’t need to call out the voice control function, just give instructions directly., as follows:

　　Did you find out that this is a process of getting closer and closer to the way people communicate, and it is also a process of getting less and less polite. Right, the way people communicate is rude.

　　The above is the meaning and significance of OneShot and no wake-up. And there are a few more words about wake-up-free words.At this stage, there are two main modes of wakeup-free..

　　Or in the music playing interface, you can just say "pause", "next song" and "increase the volume" without waking up the voice control function first.This is the most widely used wake-up-free scheme at present..

　　This logic is used in some models (|), Chery Arrizo GX Champion Edition, etc.) that use Iflytek voice engine.

　　We also see here that,In the case that most functions can give instructions directly, the system still needs to limit a time. If the time is not limited, the probability of false wake-up is still unacceptable.. Imagine that when you and the co-pilot are chatting happily about the beautiful weather today, suddenly, the system begins to talk to itself: "It’s sunny in Beijing today, and the air quality …" This situation appears twice, and you may turn off the voice control function permanently.

summarize

　　In the first issue of the terminology annotation series of the Internet of Vehicles, we explained several terms of voice control system and talked about their definitions, backgrounds and values. In fact, the communication between people is mostly realized by "speaking" and "listening". Of course, we also have expressions and gestures, etc. In contrast, it is even more difficult for machines to understand the meaning of expressions and gestures. Human-like interaction in the mouth of major car companies, research institutions and voice interaction solution providers is to let machines learn to understand languages, gestures and even emotions. As one of them, voice control is just in its infancy. When will we really turn "processing" into "understanding", and we will enter the next more intelligent stage. (Photo/Text car home Zheng Xu)