Research And Realization On The Simulated And Test System Of Computer Interlocking Sofeware

With the rapid development of communication technology, network technology, control technology, electronic technology, software & hardware of computer, simulation technology and artificial intelligent technology, computer interlocking system has been widely applied in the world, and becomes the main development direction of the station interlocking system. As being a safety-related system, high safety and reliability are needed for meeting the safety-failure principle of railway signal system. Moreover, interlocking software is the key software for the computer interlocking system resulting in having effect on the safety and reliability of the whole system, so before taking into application the testing of the computer interlocking software is a absolutely necessary and important step.In the foretime, interlocking systems were tested by manual testing, namely, testing cases are designed by the experienced engineers. There exist some faults in this method, such as low efficiency and the testing imperfection .etc, leading to no guarantee for the high safety and reliability of interlocking system. According to the prosperities of the SWJTU-II computer interlocking system developed by our library, a new simulating & testing software for the computer interlocking system has been introduced, by which the computer interlocking software can be auto-tested and continuous loading of the testing cases can be realized, as well as auto-generating and dynamic testing result determination. The faults of the manual testing can be overcome by our proposed software, improving efficiency, cutting the testing time and eliminating the event hidden troubles induced by the failure of the interlocking will achieved at the same time, and then the interlocking testing has been made standardized, programmed and simplified.In this paper, an overall introduction of the simulating & testing of computer interlocking system has been presented, the components of which are described in detail. Firstly, a brief introduction of the SWJTU-II computer interlocking system's hardware and software structure is proposed. The route control process adopted in this system has been modeled through UML method, by which the state change of the route control process was analyzed. Secondly, introduces simulating & testing structure of computer interlocking system, analyzes the function need of simulating & testing system, studies the testing result determination method, and proposes the structure of interlocking simulation software and the general idea on simulating & testing. Next, the design of the simulating & testing has been discussed in detail. Data generation used in simulating & testing has been realized as follows: station topology data files are formed by data structure on station filed shape, then interlocking table data is auto-generated through the routing-searching. Detailed flow of the algorithm implementing has been give for simulating & testing. Finally, the simulating & testing implementing process of simulating & testing system has been introduced.