Track circuit simulation model checking and varification method on basis of hypothesis test

Abstract

The invention relates to a ZPW2000A track circuit simulation model checking and verification method on basis of a hypothesis testing method, and belongs to the technical field of high speed railway signal systems. The method comprises the following steps: firstly, determining a final measurement point of a ZPW2000A track circuit by calculating the relative sensitivity of a probable measurement point of a simulation model, and meanwhile, calculating the amplitude of the probable measurement point of the simulation model by virtue of the monte carlo method so as to acquire an interval distribution function of test statistics probability; then obtaining an ultra-ellipsoid surface accepted domain of the ZPW2000A track circuit; and finally, testing the conformance of the ZPW2000A track circuit and the simulation model by measuring the signal amplitude of the final measurement point of the ZPW2000A track circuit. The method provided by the invention tests the conformance of the simulation model and the physical model through sample data; the method used for testing is simple and effective, and has strict theoretical foundation and good operability; and the conclusion is highly reliable. The checking and verification method established in the invention can be widely applied to checking and verification of the track circuit simulation system of a high speed railway or a common railway.

Description

technical field [0001] The invention belongs to the technical field of high-speed railway signal systems, and in particular relates to a method for checking and verifying a ZPW2000A track circuit simulation model based on hypothesis testing in the high-speed railway signal system. Background technique [0002] The ZPW2000A track circuit is based on the introduction and localization of French UM71 track circuit technology, combined with China's national conditions, and is an important part of the railway signal system. Compared with UM71, its transmission safety, transmission length, The reliability, maintainability and cost performance of the system have been significantly improved. It is an advanced automatic blocking system track circuit with independent intellectual property rights in China. The ZPW2000A track circuit uses two steel rails as conductors to form a circuit, which is used to automatically check the occupancy and emptying of the train to ensure the safety of t...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of lack of effective track circuit simulation model verification and verification, and propose a verification and verification method for the track circuit simulation model based on hypothesis testing, mainly for the verification and verification of the ZPW2000A track circuit simulation model. The inventive method is simple and effective, has rigorous theoretical basis and good operability, and the conclusion is highly reliable

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