Abstract: In order to solve the problem of degraded backup mode operation of signaling system in case of the communication interruption of vehicle-to-vehicle communication based train control system, an intelligent trackside object controller system based on ultra-wide band communication (UWB) technology and radio frequency identification (RFID) technology is designed, which realizes a series of basic functions such as two-way train positioning, train number identification, train integrity judgment, train direction judgment and track occupation detection. The prototype is developed and tested in laboratory. Results show that under backup mode, the mentioned smart trackside object controller system can provide backup mode of ground equipment managing entry and ensure safe driving.