Electronic fence-based mistaken entry early warning method and system

The invention relates to a mistaken entry early warning method and system based on an electronic fence, and relates to the technical field of safety protection, the method comprises the steps that an outer fence and an inner fence are arranged, the pulse transmission state of the outer fence and the pulse transmission state of the inner fence are acquired, and the inner fence is located in the outer fence; outputting an abnormal signal when the pulse transmission state is consistent with a preset abnormal transmission state, and determining an abnormal time point according to the output time point of the abnormal signal; after the inner fence outputs the abnormal signal, a detection interval with the width being the preset detection duration is established with the corresponding abnormal time point as the front end point; whether the outer fence outputs an abnormal signal or not is judged in the detection interval; if the outer fence does not output the abnormal signal, a demand detection alarm signal is outp