CAN-based train network control system and method

Abstract

The invention provides a CAN-based train network control system and method. The system comprises a first control unit, a CAN train bus, sub control units corresponding to each train carriage and a CANcarriage bus, wherein the CAN train bus is in real-time communication connection with the first control unit, the first control unit is in real-time communication connection with the multiple sub control units through the CAN train bus, each sub control unit is in real-time communication connection with a first unit and a second unit of a belonging carriage through first and second CAN buses of the belonging carriage, real-time communication connection among the sub control units is carried out through the CAN train bus, if the first and / or second CAN bus is detected by each sub control unitto have a fault or the redundancy information, a CAN message of the first and / or second CAN bus is transferred to a third CAN bus. The system is advantaged in that system reliability and signal transmission timeliness can be effectively improved, and cost and hardware development difficulty are reduced.

Description

Technical field [0001] The invention relates to the technical field of train communication, in particular to a CAN-based train network control system and method. Background technique [0002] With the continuous development of CAN (Controller Area Network) network technology, CAN technology has a corresponding international standard in the train field, and the real-time signal transmission is better, and there are large-scale and mature applications in automobiles. , The CAN network data link layer conforms to the ISO 11898-1 standard, and the physical layer conforms to the ISO 11898-2 standard. [0003] In order to solve the network control problem of light rail, in related technologies, for example, in the invention patent with the publication number CN201410232398 and the invention title "train network control system", the main control unit and the network control subsystem corresponding to each vehicle; each; The network control subsystem includes ETBN and an Ethernet interfac...

AI Technical Summary

Problems solved by technology

[0005] Under the first way, because the patent CN201410232398 builds a train control network based on Ethernet, the advantage of Ethernet is that the transmission rate is fast, and the disadvantage is that the real-time performance is poor, and real-time performance is very important for train control; under the second way, due to Patent CN201610003634 builds a train network control system based on TCN, and the advantage of the TCN standard is that the technology is stable and mature, but the core software technology and hardware are only mastered by a few manufacturers, the purchase cost is high, and the future development is easily controlled by others, and the supporting development is difficult bigger

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