Security platform beside common rail in field of railway signal

Abstract

The invention relates to a security platform beside common rail in the field of railway signals. The security platform includes a principal subsystem MPS, a diagnosis and maintenance subsystem SDMS, a universal subsystem GGW and a redundant network, wherein the MPS, SDMS, GGW is respectively connected with the redundant network, the MPS is in controlling connection with the GGW which transfers external system data input to MPS, after processing the MPS executes safety verification and decides whether the external system data can pass or not. If the verification cannot pass, the MPS controls GGW to disconnect with the redundant network; if the verification can pass, the MPS sends the processing results to the GGW. Compared with the prior art, the security platform beside common rail in the field of railway signals has the advantages of being high in reliability and security and good in expansibility.

Description

technical field [0001] The invention relates to the field of railway signals, in particular to a general trackside safety platform in the field of railway signals. Background technique [0002] With the development of urban rail transit, the demand for domestic independent research and development of rail transit operation and control systems as key equipment is increasing. At present, the CBTC control system based on wireless communication technology has gradually become the mainstream of the rail transportation control system. In the CBTC control system, the trackside safety subsystem ZC, LC, etc. are the main components of the CBTC control system. ZC and LC mainly control the normal operation of the train through communication with the on-board system of the train, and have high requirements for reliability, safety and maintainability, and the core equipment to ensure these performances is the trackside safety platform. At present, most of the wayside safety platforms us...

AI Technical Summary

Problems solved by technology

Under this type of architecture, all the boards are self-made by the R&D party, and the technical difficulty is high, and the reliability and RAM indicators of the self-made boards are difficult to guarantee.

And the certified version of the operating system is expensive. In order to adapt to the customized board, the BSP package of the operating system needs to be developed. The change of the non-certified version of the operating system also needs to be considered in the security certification of the entire platform, which will undoubtedly increase the related certification workload

In addition, this scheme is the same as the first scheme, and it also has the weakness of a single combination of fail-safe technology, and the security guarantee is relatively complicated.

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