Aiming the problem of parking information release is large flow, and release information is not timely and not accurately, the internet of vehicle (IOV) of the urban traffic parking system is proposed based on the parking lot sensor network and sensor combination and its electrical control circuits. This system will be use the core technology of internet of things (IOT) and combinate the timer and elastic pressure switch with a pressure sensor and its electrical circuits to realize the parking information acquisition, release, query, reservation and parking navigation with reliable and accurately. Experimental results shows the electrical control circuits will be better management the parking information with accurately and the car user uses the vehicle terminal to search the target parking lot and to receive the parking information. This system will be to alleviate the urban traffic and improve the utilization efficiency of urban parking lot, for the future of the city and social development to provide better technical support and basis.