1. Main Functions of Ultrasonic Detector:


1). UD(ultrasonic detector) as one of the main part of car park garage system(parking sensor)makes use of ultrasonic detecting the parking space to get message and transfer to ZCU or other equipments by RS485.
2). One parking space needs one UD which is installed in the middle of the car park space.

2.How Car Park Guidance System(parking sensor) 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.

3.Physical Parameter:


Operating Voltage:DC 12~24V Size: 100*23(mm)
Operating Current: 10mA(no indicator), 28mA( with indicator) Weight:113g
Operating Temperature:-20~+80 Communication: RS-485
Detecting Distance: 0.1~3.5m Communication distance: within 1000m
Detecting Area (3.5m):0.4 sq.m Serial port Setting:4800bps,N,8,1
Max Error: 0.1m



4.Cases of parking garage system:
1 July,2008         3850 cars       Singapore                  Changi Airport(OEM)
2 August,2008     200 cars        Japan                           Shin-Tokyo Building(TOKYO Marunouchi)
3 August,2008     70 cars           Beijing                         hongqiao pearl-market
4 Sep,2008         3160 cars      Philippines                    Mall of Asia (Manila SM)
5 Oct,2008          1500 cars       Singapore                      Harbourfront Centre(OEM)
6 Nov,2008            320 cars      Thailand                          Kasikorn Bank

7. Feb,2009      241 bays     Xuchang               PANGDONGLAI Plaza

8. April,2009     105 bays      Spain                OviedoBus station

9. May,2009      330 bays     Chengdu              CNPC South China branch
......