Safety fence based on wireless echelette grating technology

The utility model belongs to the technical field of safety protection, and particularly relates to a safety fence based on a wireless echelette grating technology, which comprises a single chip microcomputer, a plurality of echelette gratings and a plurality of supporting structures, each supporting structure comprises a base and a stand column, the bottom surface of each base is fixedly connected with the ground, and the top surface of each base is detachably connected with the corresponding stand column. An emitter and a receiver of the echelette grating are arranged on the stand column in the axial direction of the stand column, the emitter and the receiver are electrically connected with the single-chip microcomputer, the single-chip microcomputer obtains shading signals through the emitter and the receiver, an alarm is arranged on the top of the stand column and electrically connected with the single-chip microcomputer, and the single-chip microcomputer gives an alarm through the alarm. The safety fence