Abstract
Railway computer interlocking system is the core equipment of station signal control system, which directly affects the reliability and safety of the whole system. It is essential to test the interlocking software comprehensively and strictly [1]. The traditional interlocking test is conducted by testers to control the quality and efficiency of the test. According to the reference railway transportation “Interim Measures for railway signal interlocking test”, combined with the signal interlocking relationship test checklist, compared with the actual station yard of railway station, relying on manual preparation and manual implementation of test items, the test efficiency is relatively low. Therefore, the realization of automatic interlocking test has become a research hotspot at present. Interlocking function test belongs to the research field of black box test. On the premise of ensuring the comprehensiveness of test, generating efficient test sequence is the research focus of this subject.
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