The current ATC system originates from the railway sector, with large investments, high barriers, strong monopolies, a single working mode, complex principles, and can only implement ground-to-vehicle communication methods. It lacks energy conservation and environmental protection, has no redundancy guarantees, frequent failures, and often experiences ATP disconnection incidents. The research achievement "Train Operation Safety Auxiliary Protection System" addresses the needs for redundant protection systems in train operation safety, real-time positioning and distance measurement of high-precision rail transit trains, frequency bands required for safety auxiliary protection equipment, big data analysis requirements for rail transit operational departments regarding train operation safety, cloud platform information services for train operation safety, driver status monitoring, and onboard environment detection. By utilizing 2.4G spread spectrum ranging, driver status monitoring and onboard environment detection systems, big data expert systems, and an operation safety warning cloud platform, it achieves safety collision avoidance tracking and warning, big data collection, storage, and mining, A safety protection system for vehicle-to-vehicle communication ATP redundancy. It is expected that by 2020, 42 cities will have subway services in operation, and tram planning exceeds 2,500 kilometers, making it highly practical and with a broad market prospect.