Control strategy and reliability study of iLOCK high-speed railway interlocking system

To improve the safety and reliability of high-speed Railway interlocking system, a feasible interlocking system automatic control strategy was proposed. Based on two unit redundant model of system architecture, CAN bus communication was used to achieve dual system communication, to ensure proper implementation of high-speed rail operation plan. In order to verify the feasibility of the system, the VLE failure rates were divided into several different parts. According to the effects of each part of the failure rate, this paper utilized Markov model to analyze the reliability and safety. A simulation analysis was performed and the result shows that the strategy is effective.