The detector is an important part of the parking guidance system. The probe is installed in front of each parking line. The working principle of ultrasonic distance measurement is used to collect the real-time parking space data of the parking lot, control the display of the parking space indicator, and timely provide the parking space information. Transfer to the zone controller via the 485 network. A split type ultrasonic parking position detector is composed of a detector body and an indicator light. The detector body is an ultrasonic probe for detecting the empty state of the parking space, and the integrated integrated indicator light displays different colors according to the instruction of the detector. 

When there is no vehicle parking in the parking space, the indicator light is green. When the vehicle is parked, the indicator light is red, the fixed parking space indicator light is blue, and the reserved parking space indicator light is purple, which can be selected in multiple colors.