• On the afternoon of October 17, Shanghai Metro Line 18 held a roll-off ceremony at CRRC Zhuji.  The project train is currently the highest level fully automatic driving train (GoA4) unattended during the whole process.Shanghai Metro Line 18 was initially equipped with 50 vehicles and adopted the national standard 6-section A-type car group, with a maximum speed of 80km/h.BEIHAI Communication provided on-board passenger information system for Shanghai Line 18 trains. For the GoA4 level, the passenger information system can adapt to a variety of scenarios for linkage, and it fully considers reliability and redundancy. The passenger information system of this project uses a highly redundant ring Ethernet architecture, with dual switches for each vehicle and power supplied separately...
    2019 - 12 - 26
Solutions Solutions
  • 发布日期: 2022 - 08 - 12
    The performance requirements of 5G posed a challenge to communications industry, with specific demands resulting from use of the millimeter wave (mmWave) radio frequency spectrum for both mobile phones and infrastructure. In order to realize 5G, several system architecture modifications are needed, as C-RAN, edge computing in backhaul, and optical fronthaul. The application scenarios of 5G include extremely high data rates, extremely high connected-device count, extremely low latency, extremely high reliability and security, and long battery life. 5G combines...
  • 发布日期: 2022 - 07 - 29
    With the rapid development of science and technology, we have entered the information age. All over the world, people use computers for work and mobile phones for entertainment to upload and download data all the time. These data contain a lot of information, and most of which should be gathered in the data center, exchanged and processed through the switch, or uploaded to the server for backup storage. In order to prevent the information of individuals, enterprises and governments circulating on the network and stored on the server from being leaked or even stolen, server and networ...
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