Cross-Test Case Design and Suggestions for CBTC System Interconnection

In order to ensure the rapid application of Communication-Based Train Control (CBTC) system interconnection in urban rail transit in China, it is necessary to construct a complete indoor cross-test case system for CBTC system interconnection. Firstly, this paper introduces the development status of interconnection in China, combines the technical route of interconnection, analyzes the defects of the existing test case design methods, and puts forward the idea of case design from the overall perspective of the system. Then, this paper analyzes the test contents of interconnection cases in detail and elaborates the relevant contents of function test, interface test, and data test from two aspects of collinear and cross-line. By summarizing the actual problems in the process of Chongqing interconnection cross-testing, this paper puts forward two suggestions on strengthening the safety awareness and standardization of interconnection test.