1) Specification:
 

Size: Dia. 100*23(mm)
Weight: 113G
Principle: Ultrasonic
Work temperature: -20 to +80 C
Current rating: 13mA+17mA(LED indicator)
Voltage rating: DC 24V
Detecting arrange 0.1to 3.5m
Max error: 0.1m
Detecting area (3.5m): 0.4sq. M
Communication: RS-485
Baud velocity: 4800bps, N, 8, 1
Available distance: Less than 1000m
 

2) Main Functions:

A. UD(ultrasonic detector) as one of the main part of parking guidance system makes use of ultrasonic detecting the parking space to get message and transfer to ZCU or other equipments by RS485.

B. One parking space needs one UD which is installed in the middle of the car park space.