The main function of central controller is to inquire the relerant ZCU data via RS485-NODE by turns and processes these datas, then send these processed data to PC or other relevant equipment, besides it updates the LED display's data via RS485-NODE.

one CCU can support 60 ZCU at max.

Firstly, ultrasonic detector takes use of ultrasonic wave to detect the parking space to see if it is occcupied and transfer the relative commands to LED indicator which will turn from green to RED when occupied, or it will turn GREEN.Meanwhile, the UD transmits its status message to ZCU immediately. and ZCU will collect and forward the information to CCU. CCU processes these data and sends the relevant commands to ZCU and LED panel.

Operating Voltage   5V                                   Operating Current    0.7A
Operating Temperature -40°C~+85°C Power Rate               4.8W
Ports No.     2 channels                                  Communication Way TCP/IP , RJ45
port (10/100M)
Size   28.3cm*22.2cm*2.83cm(length*width*height)
3. Wire

1) March, 2008    2100cars Taipei    Taipei Municiple Carpark

2) April, 2008     1200cars   Singapore City Squire Mall

3) April, 2008     300cars    Wuxi      YaoHan Department Store

4) April, 2008     310cars    Indonisia         Cambrige city square of Medan

5) May, 2008     200cars    Changchun    Chapter Shopping Center

6) May, 2008      700cars   Tianjing    Railway Station

7) May, 2008    200cars      Weifang   Jialejia Supermarket

8) May,2008     1000cars      Beijing   SOLANA Lifestyle shopping park

9) July,2008    3850cars   Singapore   Changi Airport (OEM)

......