Interlocking system is a key sub-system for metro signaling, which controls the conditional relationship of signals, switches and section occupations. It should be implemented basing on safety critical computer, for the strict requirement on reliability, availability, maintainability and safety. This project does researching a safety critical computer with 2oo2 redundant structure, studying the algorithm of interlocking logic creating automatically, developing a metro interlocking system including interlocking controller, displaying and operating workstation, and simulation test system.
