Three-dimensional space positioning method, device and apparatus for personnel of transformer substation

The invention discloses a three-dimensional space positioning method, device and apparatus for personnel of a transformer substation. The method comprises the steps of obtaining the height of the personnel entering a target area of a transformer substation and shooting an image of the personnel in a standing state through a plurality of cameras; according to the pixel information of a portrait ineach image, combining the height of the personnel and the camera information; calculating the distance from the top of the head of the personnel to each camera; solving space coordinates of the head top of the personnel according to the distance mathematical model to acquire the spatial position of the personnel; the space positioning of the personnel can be realized without wearing specific positioning equipment by the personnel entering the target area of the transformer substation; the technical problems that in an existing transformer substation personnel positioning mode, the positioned personnel needs to carry s