Method for generating automatic test case of rail transit signal system

Abstract

The invention discloses a method for generating an automatic test case of a rail transit signal system. The method comprises the following steps of S1, performing case scene analysis; S2, extracting specific influence factors of the scene; S3, orderly combining the influence factors through a CT algorithm, and automatically generating test data covering all scenes and all function points and faultpoints; S4, automatically screening and eliminating the test data; S5, selecting a part of test data results for manual analysis to obtain a data set with labels, carrying out modeling analysis on the obtained data set by using an LSSVM algorithm to obtain an LSSVM model, judging and identifying an expected result of an unknown sample by utilizing the LSSVM model to obtain the expected result ofeach piece of sample data, and combining the expected result with the corresponding sample data to obtain a finished test case. According to the invention, automatic generation of the test cases is realized, and the test cases are completely covered without omission.

Description

technical field [0001] The invention relates to the technical field of rail traffic, in particular to the testing technology of rail traffic signal systems. Background technique [0002] The rail transit signaling system is an important part and key control system of rail transit engineering construction projects. It is the brain and center of the rail transit system and plays a key role in the safety and reliability of the on-board and trackside systems during operation. With the development of the signal system, the complexity of the system is getting higher and higher, and the relationship between the safety function modules tends to be complicated. Therefore, higher and higher requirements are put forward for the integrity and effectiveness of the system test. [0003] At present, the following problems exist in the test of rail transit signal system: [0004] (1) Relying on the tester's experience and understanding of the system, the test cases are written manually, an...

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Problems solved by technology

[0007] Aiming at the defects existing in the prior art, the technical problem to be solved by the present invention is to provide a method for generating automatic test cases of rail transit signaling system, which solves the problem that the results of use cases are difficult to predict through the method of automatically generating use cases at present; After screening, a large number of invalid use cases are obtained; solve the problem that the current use case automatic generation algorithm predictive model establishment requires a large number of data samples as model training samples

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