Dual-network redundant device system and lane communication system

Abstract

The invention discloses a dual-network redundant device system and a lane communication system. The device system comprises: a PRP module; a plurality of packaging modules, wherein the plurality of packaging modules are connected with the PRP module; during data sending, the PRP module is used for copying first message data to be sent and sending a plurality of copied first message data to the packaging modules in a one-to-one correspondence manner, and each packaging module is used for packaging the received first message data and sending the packaged first message data to target equipment; when data are received, each packaging module is used for de-packaging second message data to be sent and transmitting the de-packaged second message data to the PRP module; and the PRP module is used for calculating all the received second message data according to a discarding algorithm to obtain retained second message data, and sending the retained second message data to the target equipment. According to the invention, the reliability of train-ground communication is improved.

Description

technical field [0001] The invention relates to the field of vehicle-ground communication of rail transit signal systems, in particular to a dual-network redundant device system and a lane communication system. Background technique [0002] At present, most domestic rail transits adopt the CBTC (communication-based automatic train control) system. Compared with the traditional fixed-block signal system, the mobile block adopted by the CBTC system can achieve higher operational efficiency. The train-to-ground wireless communication system of the CBTC system is the key system to realize the reliable communication of train control information between the train and the ground. Based on communication, the system realizes two-way transmission of train control information between vehicles and trackside signal equipment, and the reliability of the vehicle-ground communication link is particularly important. The current vehicle-to-ground communication is connected to the wireless ne...

AI Technical Summary

Problems solved by technology

[0003] However, due to the existence of various wireless communication systems in the open environment of vehicle-to-ground communication, the CBTC vehicle-to-ground wireless system will inevitably be interfered by other wireless systems. In severe cases, it will cause communication link failures and affect the availability of the entire CBTC system.

Moreover, the existing train-to-ground communication system only supports a single standard wireless communication system, and cannot make full use of the deployed or other available trackside wireless networks

[0004] Moreover, the vehicle-to-ground communication system does not have a selection mechanism for multi-link data, which must be processed through application layer software. The processing process is complicated, and in the case of changes in the network environment or changes required by the operator, it is necessary to modify the application layer software. Changing and difficult to maintain

Images