The SHIR-3002 substation switch room indoor wheeled inspection robot adopts miniaturization, light weight and modular design, and integrates trackless navigation and autonomous mapping, intelligent image recognition and analysis, multi-sensor fusion and other technologies to realize the status of indoor equipment monitor. And through the backend comparison and analysis of the inspection data, the hidden dangers and fault signs of the equipment can be found in advance to ensure the stable operation of the equipment and improve the efficiency of the inspection.