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High-Speed Weigh-In-Motion System
ZDG-40-WB1
ZDG-40-WB1 is NRT high speed Weigh-In-Motion system. The system &HSWIM( consists of bar sensors and data-logger, which are used to detect the axle load and total weight of the vehicle. The system can automatically detect, weigh and output the results in free flow without manual intervention. It is mainly used in highway overload pre-selection, direct enforcement detection, traffic flow survey and other systems to detect the wheel weight, axle weight and total weight of passing vehicles and provide scientific weight information for the back-office system.
Specifications and Technical Indications
Specifications
Model
ZDG-40-WB1
Load capacity (single axle)
≥40T
Overload capacity (single axle)
200%
Sensor service life
≥40 million axles
Speed detection range
0~100km/h
Speed detection error
≤±1.5%
Gross weight error
(after calibration)
≤±2.5%
Gross weight error
(in operation)
≤±5%
System power supply
220V AC 50HZ
Protection class
IP68
Size
H*W*L:100 mm *80 mm
*1500/17500/2000 mm
System Architecture and Working Flow
Fig 1. System deployment
The minimum HSWIM system consists of the bar sensors and detection loops, which are berried in the road and the datalogger which is installed in the cabinet on the roadside. Other options configurations including the ANPR, LED light, VPS, CCTV, VMS and other accessories like the signs.
System Function
Vehicle basic information
When the vehicle passes through the weighing area, the system can accurately and effectively separate the vehicles and output complete vehicle information, including: axle weight, axle group weight, vehicle weight, number of axles, axle type, vehicle type, wheelbase, speed, date and time.
System Electrical Connection Diagram
Bar Sensors Layout
Data Logger and Data Collection Unit
The data-logger and Data collection Unit are both installed in a field cabinet near the bar sensor. All the bar sensors’ signal inputs and loop signals connect with the Data collection Unit, which is connected with the data logger. All the signal processing and calculation are conducted in the data logger in order to calculate the vehicle weight. Data Logger can also run the high-speed software in order to match the capturing pictures, point cloud pictures and vehicle dimension data.
Specifications
Number of lanes supported
4 lanes in dual direction
Number of data acquisition channels
24
Loop input port
4
IO output port
4
Sampling rate
3.3kHz
Signal transmission mode
Signal transmission mode: support TCP / IP protocol, and provide multiple interfaces such as RS232 / RS485
Ethernet port
2
Operating temperature
-40°C~80°C
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