Optimization of OCC and BOCC Architecture Design for Urban Rail Transit

Objective Under the existing modes, when a core equipment in the OCC (operation control center) fails, the BOCC (backup operation control center) needs to be activated, which greatly increases the dispatchers′ difficulty in operation command. Therefore, it is necessary to conduct research on optimization of the OCC and BOCC architecture design. Method ATS (automatic train supervision) system is taken as an example for analysis. The configuration of ATS system in OCC and BOCC is introduced. The function positioning of BOCC, the working principle and switching mode of OCC and BOCC before and after OCC and BOCC architecture design optimization are analyzed. Result & Conclusion The optimization of OCC and BOCC architecture design significantly improves the redundancy, greatly reduces the scenarios requiring dispatchers to move to BOCC for operation command, and obviously decreases the impact of ATS system faults on related external interface systems.