IN our parking guidance system, every parking space is monitored by a single space sensor. The sensor is
Installed on the ceiling in the middle of each parking space. The sensor detects the occupancy status through ultrasonic
Distance measurement. The measured distance value is transmitted to the connected zone controller and
Compared to the previously stored ceiling height value. If a vehicle is occupying the parking space, the values do not
Match therefore the zone controller transmits to the sensor which changes the indicator LED light
From green to red. . The zone controller up to 64 single space sensors can be
Connected to one controller.