Design and Testing of Platform Screen Door System and Signaling System Interface Based on Urban Rail Transit FAO Technology

Based on urban rail transit FAO (fully automatic operation) technology, from the perspective of critical signal interface and non-critical signal interface, the current status and demand of signaling system and platform screen door system interface is analyzed in-depth. The control signal between signaling system and platform screen door system is gradually transforming to combination of hard-wired signal and communication signal. The design of critical signal interface must meet the SIL4 requirement. The circuit design principle of critical signal interface and non-critical signal interface is expounded, and the implementation details of interface test are discussed.