This product is a comprehensive testing device for urban rail vehicle depots customized and developed according to customer needs. Can meet three different functional requirements of customers: 1. Process and electronically regulate the ground air source before transmitting it to the construction vehicle for use; 2. Convert the ground power supply to the form required for the construction vehicle and transmit it to the vehicle for use; 3. The remote control station can monitor the operational status and data of the engineering vehicle control room, and provide interactive feedback.