On the afternoon of November 21st, the world's first new energy air railway (referred to as "empty iron") test line was successfully put into operation in Chengdu. The new energy empty iron refers to the air-suspended rail train with the lithium battery power pack as the traction power. The world's first new energy empty iron is led by the State Key Laboratory of Traction Power of Southwest Jiaotong University. It is jointly developed by seven large state-owned enterprises including China CRRC, China Railway and Panzhihua Iron and Steel Co., Ltd. It is a new type of China with completely independent intellectual property rights. Modern transportation system. According to Zhongxin.com on November 21, the new energy empty iron test line officially put into operation on that day was 1,461 meters long. This "U"-shaped test line consists of a passenger station, a main line track, a sub-line, a train, a static adjustment library and other related equipment, which can completely simulate the straight line of the new energy empty iron in actual operation. , cornering, climbing and other properties. According to Qi Ming, the chief designer of the New Energy Air Railway and the academician of the Chinese Academy of Sciences, China is the third country to build an empty railway train after Japan and Germany. The difference is that the new energy empty iron developed in Chengdu does not require high-voltage electrical equipment. Power, but the lithium battery pack instead of high-voltage electricity for the traction power of the train, which is the first in the world. "Panda" empty iron successfully put into operation in Chengdu, Sichuan After the new energy empty iron test line was officially put into operation, the train was tested. The reporter saw at the scene that the new energy air-suspended rail train consists of two carriages, the exterior is a giant panda style, and the whole is suspended on a box-shaped track beam. The interiors of the carriages are blue and white, similar to common rail transit trains such as subways and light rails. The new energy empty iron “flights†at a speed of 60 kilometers per hour, opening up an imaginary space to improve urban congestion. “The new energy empty iron has no exhaust pollution and electromagnetic radiation, and the running noise is much lower than the wheel-rail noise. At the same time, the track beam of the new energy empty iron is set in the air, occupying less land, and will not affect the existing road traffic layout on the ground.†Next, the R&D team will conduct operational assessment of the new energy empty iron, continuously optimize the system design parameters, and on this basis, study and formulate new energy empty iron technical standards, and lay the foundation for the future construction of new energy empty iron commercial operation line. "Panda" empty iron compartment interior According to the Huaxi Dushi Bao reported on November 21, the reporter also participated in the test ride. This new energy empty iron test line is a white track that is erected above 5 meters. The train compartment is similar to the subway. The seats are arranged on the left and right sides. Due to the number of passengers on the day, the overall feeling is somewhat crowded. It is said that the maximum carrying capacity of an empty iron is 230 passengers. Standing in the carriage, through the glass window, the line of sight is extremely wide, as if standing on the second floor overlooking the distance. The test line track simulates different road conditions in the city. There are curved roads and uphill slopes. The maximum slope of the line is six thousandths and the minimum turning radius is 30 meters. "Please pay attention to the experience, and now the cornering stage." Wang Kai, the "navigator" on the empty iron, said that the setting of these indicators is designed according to the most complicated situation of urban road conditions. In other words, as long as this situation Under the simulation can be successful, then the city's other road conditions can be adapted. However, the reporter felt that the bumps in the carriage were quite obvious. A passenger placed a bottle of mineral water in the compartment to test its stability. Seeing the water continually pulsing in the bottle, a passenger joked: "The sporty carriage is like a massage." For feedback on bumps in the car, Yan Ming frankly said that this may be related to the weld. Next, they will further collect test parameters, improvements and optimizations. According to the Huaxi Dushi Bao, Yan Ming said that the car has become the daily means of transportation for most urban residents, which makes urban ground traffic overwhelmed and has become an important factor in environmental pollution. He believes that the empty iron is an inevitable choice for the development of three-dimensional transportation in modern cities. What is the speed of the empty iron? This is a matter of public concern. Yan Ming introduced that during the trial operation of the new energy empty iron test line, its speed was set at nearly 60 kilometers per hour compared to the speed of Japan and Germany. He believes that the speed of 60 kilometers per hour is enough for urban traffic. Because there is a site for how far the city traffic can't be separated, it is not realistic to maintain the high speed of the vehicle for a long time. If the empty iron is suitable for use in the suburbs or scenic areas, there is room for speeding up. In the future, it is possible to increase the speed of the empty railway to 70 kilometers or 80 kilometers per hour. Will the track in the air face the risk of derailment and how to ensure its safety? In his speech, Yu Ming particularly emphasized the high security of the operation of the empty railway. He further explained that the vehicle running gear is always enclosed inside the box-shaped track beam and there will never be a derailment event. The train will not collide with other objects on the air line, which fully guarantees the operation safety of the system. Say that the empty iron is so safe, what operational risks may it face? The biggest risk of the analysis is that the battery is exhausted and the empty iron is shut down in the air. If the empty iron stops in the air, how can passengers escape or evacuate? Yan Ming said that the team designed a plan to evacuate passengers. For example, the front and rear windows can be opened, and a 5-meter-high slide can be placed. Passengers can take the slide to leave. You can also use a simple ladder to evacuate passengers, or you can drive another empty iron to pick up the trapped passengers. Cockpit interior According to Yan Ming, the new energy empty railway has the advantages of low investment and short construction period. He revealed that compared with the construction of the subway, the track and beam of the new energy empty iron are prefabricated by the factory, assembled on site, simple in construction, with little impact on the surrounding area and shorter construction period. After calculation, the cost of constructing an empty iron per kilometer is less than 100 million yuan. The construction cost per kilometer is only one-fifth to one-eighth of the subway, and one-half to one-third of the straddle-type monorail traffic. Since the power used by the empty iron is a lithium battery, the operator can charge it in the peak valley, such as charging in the middle of the night. On the one hand, it contributes to the balanced use of electricity, on the other hand, it can also obtain the lowest power cost. Yan Ming introduced that compared with the suspension railways in Japan and Germany, he designed the empty iron to use the new energy lithium battery power package as the power source. The lithium battery life of the new energy empty iron can be up to 4 hours depending on the power required to carry the number of passengers. Empty iron compartment interior Can the emergence of empty iron change the problem of urban congestion? Will it become the mainstream transportation means of the future? In this regard, it is obviously very rational: the empty iron is not a mainstream mode of transportation, but one of many modes of transportation, and is an important supplement to urban rail transit. “There is a subway underground, there are light rails on the ground, and the road becomes more and more crowded. We set up an air railway and add one more to the entire ground and underground transportation mode.†He said that through the formation of urban three-dimensional traffic, to solve the heavy traffic. problem. He believes that the low construction cost of the empty iron and the short construction period make it more suitable for development in the second and third tier cities. In such cities, the empty iron is likely to become the mainstream means of transportation for ordinary people. Going to Shanghai, taking the maglev train has become a standard for many people to travel to Shanghai. Whether the high-profile air railway will also show its strength in the tourism industry? In this regard, Yan Ming believes that in the tourism industry, as long as the scenic spot is intentionally built, this will be a good development direction. If one day, the empty iron out of the laboratory, to the ordinary people's life, take the air of the air, will the charges be as expensive as the Shanghai Maglev train? Is it as close to the people as the subway price? In this regard, Yan Ming believes that if its function is the city's main means of transportation, its price may be like the bus and subway, there are subsidies from the government, the price will be very close to the people. If it is mainly used in scenic spots, then its price may be like a sightseeing car, a cable car, a cableway, and the price will be higher than the daily transportation fee. Test crew In this regard, Academician Yan Ming said that the fastest next year, preferably in Sichuan. He introduced, next, this test line will simulate the normal passenger operation state, and carry out a running test with a total mileage of 10,000 kilometers to test the stability of the system under the condition of “repeated running†and optimize according to the actual situation. Enhance relevant parameters to enhance the corresponding functions, lay a solid foundation for the commercialization of new energy empty iron, enter the daily life of the public, and improve traffic congestion in China's cities. “It also lays the foundation for the next step to determine the implementation standards for new energy empty iron technology.†Since the empty iron has so many advantages, will this innovative product win the favor of the market? According to Tang Tong, Chairman of the Board of Directors of Zhongtang Air Rail Group Co., Ltd., some cities in and outside the province have already thrown olive branches to them. Some cities have clearly expressed their desire to use air rails to open up air travel routes. Yan Ming said that he hopes that the first empty iron used in the market will be born in Sichuan, where vaccination and growth. He believes that if you do it quickly, you can use it on the commercial line next year. However, this needs to be combined with local government planning. On November 21st, the launching ceremony of the world's first new energy empty iron test line was held. ◠As early as 1898, the German Wuppertal built the world's first monorail suspension railway system on the Upa River. In 1903, the entire line was opened to traffic, and the line length was 13.3 kilometers. So far, the world's first monorail suspension railway system has been It has been running for 113 years. ◠New energy empty iron refers to the air-suspended rail train with the lithium battery power pack as the traction power. Yan Ming, an academician of the Chinese Academy of Sciences, introduced the test line to simulate the normal passenger load and conduct a running test with a total mileage of 10,000 kilometers. An Indoor Access Point is a device for wireless local area networks (WLAN) that provides wireless network coverage and connectivity. It can connect to a wired network and transmit data via a wireless signal, allowing users to connect to the network wirelessly within coverage. Indoor Access Point,Access Point Ceiling,Ceiling Wifi Access Point,Ceiling Mounted Wireless Access Point Poe Shenzhen MovingComm Technology Co., Ltd. , https://www.movingcommiot.com
High security, never derailed 
Charge: as city traffic, price or with the subway 
Indoor access points come in a variety of different types and specifications to suit different scenarios and needs. Here are some common types of indoor access points:
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In addition to the types listed above, there are some special purpose indoor access points, such as:
1. Wall-mounted Access Point: A wall-mounted access point can be plugged directly into a Wall power outlet without the need for an additional power cord. This type of access point is suitable for home networks or small offices and can provide easy installation and use.
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To sum up, there are many different types and specifications of indoor access points, which can be selected according to different scenarios and needs. Whether it's a small office, home network or a large enterprise, you can achieve convenient wireless network coverage and connectivity through indoor access points.