Bridge crane real-time positioning method, device and system

The invention provides a bridge crane real-time positioning method, device and system. The method comprises the steps that a server can obtain a first image through a camera installed on a bridge crane supporting frame; the first image may include a position mark on the marking rod. A preset model can be stored in the server. The preset model can identify the position information of the position mark in the image according to the first image, namely the image position information. And the server can cut the first image to obtain the position mark image. The server can identify the mark information in the position mark by using the preset model. And the server determines target position information of the suspension bridge according to the image position information, the mark information and preset parameters. According to the method, the novel bridge crane real-time positioning method is provided, and the stability and accuracy of bridge crane positioning are effectively improved. 本申请提供一种桥吊实时定位方法、装置和系统。该方法包括：