At present, the construction operation and maintenance mode of our group is gradually transitioning from traditional management mode to intelligent management, but the construction operation and maintenance inspection is still mainly manual. Considering that manual inspection has the disadvantages of high cost and low efficiency, and the inspection under special circumstances such as limited building space, it is inevitable to have personnel safety and health risks, therefore, it is necessary to develop an automatic data acquisition system for building patrol inspection to improve the online automatic detection ability of building electromechanical equipment.