Three-dimensional electronic fence

The invention discloses a three-dimensional electronic fence. The three-dimensional electronic fence comprises a trolley positioner fixedly installed on a high-altitude trolley, a reference positionerfixed to the ground and a controller. The trolley positioner and the reference positioner are in communication connection with the controller; the reference positioner serves as an original point ofa three-dimensional coordinate, and coordinate values of the trolley positioner relative to three dimensions of the original point are positions of the high-altitude trolley relative to the referencepositioner. The problem that no safety measure guarantee exists in the high-altitude operation process is solved, three-dimensional safety measure arrangement is carried out, and the effective safetydistance between the device and electrified equipment in the high-altitude operation process is kept. The distance between the electrified equipment and the high-altitude trolley is calculated througha positioning means, when th