Fault-tolerant scheduling method of CBTC (Communication-Based Train Control) zone control system application software

Abstract

The invention discloses a fault-tolerant scheduling method of CBTC (Communication-Based Train Control) zone control system application software, comprising the steps of: dividing the CBTC zone control system application software into a plurality of different processes according to function modules; judging whether the execution results of two different versions of CBTC zone control system application software executing the same process at the same time are consistent or not, if so, respectively executing the next process by the two versions of software, or else, performing fault-safety treatment; and if the two execution results of all the processes are consistent, outputting the final execution result. The function modules comprise a mobile authority limit computation function module, a train management function module, a train sequencing function module, an updating rail occupation status function module, a train safety position computation function module and a communication state supervision function module. The invention can better guarantee safety from a software mechanism, thereby improving the safety of the system and enhancing the operation efficiency of the zone control software.

Description

technical field [0001] The invention relates to the technical field of communication train safety control, in particular to a fault-tolerant scheduling method for application software of a CBTC regional control system. Background technique [0002] The area control system is an important part of the CBTC system. It is mainly responsible for the calculation of the communication trains within its control area based on the position information reported by the communication trains and the track occupancy / vacancy information provided by the interlocking routes and trackside equipment. Generate mobile authorization to ensure the safe operation of communication trains in its control area, and have the ability to manage trains under various train control levels and driving modes. Its reliability and availability are related to the smooth operation and operating efficiency of the entire CBTC system. [0003] One of the key technologies to ensure the high security of the regional cont...

AI Technical Summary

Problems solved by technology

[0004] 1. Data processing is only for the final output of the software, and cannot fully detect and verify the intermediate logic process of train control;

[0005] 2. The algorithm is single, which is not conducive to improving the operating efficiency of the application software on the hardware platform, and it is difficult to meet the real-time requirements;

[0006] 3. Once there is a loophole in a single function in the software, it will directly affect the output of the system if it is too late to detect, and there is a potential safety hazard

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