The APP mainly provides convenient data viewing and debugging functions for engineering vehicle service personnel. Engineering vehicle service personnel can view real-time information such as the current position of the vehicle, real-time lifting height, and oil pump speed through the APP. The APP provides remote car locking control function, and service personnel can remotely lock and unlock the vehicle through the APP. Through the production debugging function, sufficient debugging work is carried out on vehicles in the production process to ensure the yield rate of vehicles leaving the factory.