The PIR-DS300 substation inspection robot is a customized product that specifically responds to the functional requirements of different robots. It adopts a modular design and flexible selection of multiple sensors to achieve the most efficient cost ratio according to the needs of on-site inspection. Through an autonomous mobile platform, equipped with multiple sets of high-performance monitoring instruments, the indoor equipment is monitored all-weather, and the monitoring data is transmitted to the station control system and the background master station system through a specific channel.