CCU: Central Control System ZCU: Zone Control System UD: Ultrasonic Detector LED Indicator: Red/Green Led Indicator LED screen: Outdoor/Indoor LED screen
2.The node controller(ZCU) is the middle layer of ultrasonic parking detector, which be used to manage grouply ultrasonic
detector, detect loop the information of the detector, then send the relevant information to central
controller. One node controller could support 40-60 parking space detectors.
3.How PGS Works:
Firstly, UD takes use of ultrasonic wave to detect the car space to see if it is occupied by vehicles and transfer relative command to LED Indicator which will turn from green to RED when occupied, or it will keep GREEN; meanwhile, the UD transmit its status message to ZCU immediately, and ZCU will collect and forward the information to CCU; CCU processes these data and sends the relevant command to ZCU and LED panel.