Zhangjimao Coal processing plant coal transport trestle area, covers an area of 400 square meters, a total of one T9-R explosion-proof rail hanging inspection robot, for the coal transport trestle area of three belt machines with a total length of 600 meters unmanned autonomous intelligent inspection, covering a total of 1750 inspection sites.  Replace the operation and maintenance personnel in the high frequency and precision inspection in the coal transport trestle with strong environmental restrictions and high severity, and open up the whole process work system of intelligent inspection and operation, information data collection, visual equipment status presentation, and digital analysis and decision making.