94Ha Viewpoint
HA VIEWPOINT(94HA.COM): China is developing a new generation of super high-speed rail that will reach speeds of 1,000 kilometers per hour in a near-vacuum maglev tunnel, faster than commercial aircraft, and can use 5G networks while running.
According to the Hong Kong “South China Morning Post” on Sunday (December 1), China’s high-speed rail currently runs at a speed of 350 kilometers per hour and can use 5G networks in long tunnels. However, at near-sonic speeds, it is very challenging to ensure that mobile phones and communication base stations maintain high-speed and unobstructed lines.
This is because when a mobile phone quickly approaches or moves away from a communication base station, the frequency of the received signal will change, and high-speed data communications rely heavily on stable high-frequency signals. It is also very difficult to install and maintain base station operations in a near-vacuum tunnel. When the antenna falls due to vibration, it will pose a serious threat to the fast-moving high-speed train.
According to reports, a research team led by Professor Song Tiecheng of the National Key Laboratory of Mobile Communications at Southeast University found that the base station installation problem can be solved by laying two parallel cables on the inner wall of the tunnel, allowing high-speed trains with a speed of 1,000 kilometers per hour to support 5G networks, and passengers can use smartphones to watch ultra-high-definition videos or play online games.
The above research results were published in the academic journal “Railway Communication Signal” in November.
According to CCTV News Client, the “High-speed Flying Car” project team of China Aerospace Science and Industry Corporation revealed at the science exhibition held in Beijing in April last year that the “high-speed flying car” being developed by China has made new progress and recently completed the first full-scale super-navigation test in the country.
The official WeChat public account of the Magnetoelectric General Department of the Third Academy of China Aerospace Science and Industry Corporation issued a post on January 30 this year, saying that the Third Academy took the lead the day before (January 29) at the high-speed flying car test base in Yanggao County, Datong City, Shanxi Province, and successfully completed the full-scale superconducting electric suspension test of the ultra-high-speed low-vacuum pipeline maglev transportation system (i.e. high-speed flying car).
The high-speed flying car integrates aerospace technology and ground rail transportation technology. It reduces track friction and air resistance through superconducting magnetic levitation and low-vacuum pipes to achieve ultra-high-speed “near-ground flight” with a designed speed of 1,000 kilometers per hour.
