Design method of a rail transit train operation control system

Abstract

The invention discloses a method for simplifying a rail transit train operation control system, and belongs to the technical field of rail transit control. The method particularly includes 1), improving a process for designing a universal safety computer platform; 2), simplifying vehicular application or ground application of the rail transit train operation control system. The method has the advantages that the designed universal safety computer platform is implemented on the basis of hardware / software difference design principles and hierarchical diagnosis principles, and functions for simultaneously implementing a plurality of application control logics are supported in the aspect of software on the basis of double-determinacy principles; a plurality of traditional rail transit operation control logic processing functions can be simultaneously supported by a logic processing layer of the universal safety computer platform designed by the process, so that the quantity of equipment of the traditional rail transit train operation control system can be reduced, and the reliability of the operation control system can be improved; the universal safety computer platform designed by the process can be migrated to rail transit train operation control systems with different requirements, so that development and safety assessment workload can be reduced, and the development and safety assessment cost can be lowered.

Description

Technical field [0001] The invention belongs to the technical field of rail transit control, and particularly relates to a design method of a rail transit train operation control system. Background technique [0002] The rail transit system mainly includes railways and urban rail transit (hereinafter referred to as urban rail). In recent years, new rail transit train operation control systems, such as the Chinese Train Control System (CTCS) applied to railways and the Communication-based Train Control System (CBTC) applied to urban rail, have emerged as the times require. The high-speed railway and the high-density and low-interval of urban rail provide a solid technical and safety foundation. [0003] By analyzing the current CTCS and CBTC system structure, it is not difficult to find that these systems follow the design ideas of traditional signal equipment, adopt different subsystems for different operation control functions, and realize the entire system based on the superposi...

AI Technical Summary

Problems solved by technology

[0008] But the shortcoming that realizes rail transit train operation control system in the above-mentioned way is also obvious

First of all, doing so will cause the train operation control system to contain many subsystems with a complex structure and a large number of devices. According to the basic principle of reliability, the more complex the system structure and the more devices, the lower the system MTBF

Even if the entire system complies with the relevant safety standards and meets the corresponding safety integrity level (SIL) requirements, due to the low MTBF of the system, failures will occur more frequently and the system recovery time will be longer, which not only reduces the operating efficiency of the system, but also easily induces other problems. Major accidents. In recent years, many major rail transit accidents occurred during equipment failures, which fully proves this point.

[0009] Secondly, due to the existence of many subsystems, the mutual coordination (through communication) between subsystems will occupy a large amount of software resources of each subsystem. software and hardware resources

[0010] Finally, the more devices there are, the more difficult it is to deal with problems such as space occupation, high energy consumption, and heat dissipation, especially for vehicle-mounted devices.

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