Recently, the reporter learned from Zhuzhou in China that its self-developed global network of next-generation train control systems with synchronous and deterministic real-time Ethernet as the core technology has successfully tested the 380-kilometer-rated Chinese standard EMU. This means that the standard EMU operation data transfer speed can be increased more than 60 times than the original.
Train network control system is the train's "brain", its upgrading is the realization of "smart high-speed rail" must. At present, the synchronous and deterministic real-time Ethernet, which is supported by software-defined networks, network function virtualization, cloud computing and big data, is the most important technology in the field of high-speed train control and intelligence. It builds on-board information "highway" by improving the bandwidth, sub-microsecond-level clock synchronization and intelligent scheduling technology. It breaks through the influence of transmission bandwidth and transmission speed of the previous generation network control system and can only support basic train control and diagnostic function data Transmission of the short board, greatly improving the level of intelligent train.
"Our newly developed Train Control and Information Services Network System (TCSN) is equivalent to turning the one-way street data transmission into a multi-lane highway in the past, and the operating data transmission speed is increased by more than 60 times." Zhuzhou, Zhuzhou, deputy general manager and chief engineer Feng Jianghua introduced.
The loading test, Zhuzhou on the standard EMU drive control unit, brake control unit, door control unit, passenger information system, fire alarm system, 12 kinds of products, such as communication interfaces were tested and tested, not only to achieve the test The standard requirements, but also for the vehicle TCSN system applications, completed the link aggregation, auto-negotiation and other functional tests, has been highly praised by the expert group. This provides the quality assurance for the interconnection and interoperability of various sub-systems of China's standard EMU independently designed by China and the adoption of the TCSN communication method.
According to another report, Zhuzhou has completed the scientific research of the core technology of TCSN for three years and has the complete set of product R & D, manufacturing, testing and testing capabilities. Beginning in 2014, TCSN products successfully tested the interoperability with the corresponding products of Bombardier and carried out the loading test in Changsha Metro Line.
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