ATS main/standby switching method and device

The invention provides an ATS main and standby switching method and device, relates to the technical field of rail transit, and is applied to an ATS main and standby control system, the system comprises two control centers, in the working process, one control center is set as a main control center, the other control center is set as a standby control center, and the two control centers both comprise ATSs running on a cloud server. The method comprises the steps of obtaining a health value or a state of a main device included in an ATS of a main control center in real time, and switching to a first standby device corresponding to a target main device in the main control center or switching to a second standby device included in an ATS of a standby control center when it is determined that the target main device breaks down based on the health value or the state. Redundancy and switching of the main and standby control centers of the ATS system based on the cloud platform are achieved, and compared with a tradi