2.several sensors per led indicators,if any of the space is free,the indicator will be in green.
1.Wireless Carpark Guidance System
Wireless carpark guidance system is composed of wireless ultrosonic Detector /wireless Magnetic Detector , wireless Zone Cotroller and wireless central controller. This system collects real-time information of each parking space through wireless Ultrasonic detector or wireless Magnetic dector which will be installed at each parking space. The zone cotroller receives and collects RF signal from each detector of its management area, then send back to central controller after data compression. The led display will receive the carport information from central controller and display the amount of the available lots currently in terms of number and word.
Wireless Ultrasonic Detector would apply to indoor parking lots,and the wireless magnetic detector would apply to outdoor parking lots.