Event recording method and equipment based on central control unit

The invention relates to an event recording method and equipment based on a central control unit. The method comprises the following steps: collecting a realtime signal, recording the event, collecting a redundant signal, comparing the two signals, and performing motions according to the comparison result. The equipment comprises a train central control unit, a controller, and a memory. The method and equipment has the advantages of simpleness, reliability, reduced cost, and convenience for maintenance and debugging in the later period.