Knife switch state remote identification method and system based on multiple sensors

The invention discloses a disconnecting link state remote identification method and system based on multiple sensors, and relates to the technical field of disconnecting link state detection.The method comprises the steps that when a dispatching operation instruction is received, a laser range finder is adopted to conduct range finding on all phases of disconnecting links in three phases of disconnecting links to obtain A-phase disconnecting link range finding results, B-phase disconnecting link range finding results and C-phase disconnecting link range finding results; determining the state of the three-phase disconnecting link according to the A-phase disconnecting link distance measurement result, the B-phase disconnecting link distance measurement result and the C-phase disconnecting link distance measurement result; the states of the three-phase disconnecting link comprise an off-position state, an on-position state and an intermediate state, and the intermediate state is a motion state between the off-p