Every group need install one led indicator.If there are available lots ,it will be in green,otherwise it will be in red.
1.Wireless Parking Status Indicator(Green:Vacant,Red:Occupied)
2.Principle of Wireless Parking Guidance System
Wireless ultrasonic detector detects the parking space status, then transmit the detect information to related wireless zone controller via RF signal. Meanwhile, wireless zone controller will collect these information and forward to wireless router which connected to wireless central controller by Wifi. After acquiring the whole garage parking information, the wireless central controller would send the updated information to every LED screen in the car park by LED screen controller via wireless router. It realizes the parking guidance function through above procedure.