The ultrasonic parking guidance system collects and displays the status information of each parking space in real time through the front-mounted ultrasonic detector. When a vehicle is detected in the parking space, the indicator light of the detector will change from green to red, and the detection result will be uploaded to the regional controller at the same time.

The regional controller collects the status information of the parking spaces in real time, and feeds back the data after compression and encoding to the central controller for processing; the central controller uploads the processed parking space data to the management system, and updates the parking space information to the indoor parking space guidance screen, and entrance remaining parking space display screen, and other front-end equipment in real time. The guidance system helps car owners eliminate the trouble of finding parking space, save parking time, and improve of parking lot management.