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1. Introduction to the system
Power plants, coal yards, garbage dumps and other units have a large number of material transportation vehicles entering and exiting every day, requiring procedures such as parking, registration, and weighing. The data is manually entered into the computer by the operator, which is not only time-consuming, but also has a large error rate. It is also easy to breed man-made fraud and cause a lot of economic losses to the enterprise.
The automobile intelligent weighing system combines microwave radio frequency identification technology, electronic truck scale technology, communication technology, automatic control technology, database technology and computer network technology to automatically record the license plate number, weight information, time information, etc. of vehicles equipped with electronic tags. And written into the host database, can effectively eliminate human error, prevent over-balance blockage, cheating and other situations.
2. System composition
The system includes readers, antennas, tag cards (electronic license plates), electronic truck scales, host computers, signal lights (red and green), automatic barriers, ground sensing coils, infrared meters and supporting management software.
Three, work flow
◇ The green signal light is on, and the weighing vehicle enters the lane. After the vehicle enters the lane, the red signal light is on, and the next vehicle is prohibited from entering the lane.
◇ The vehicle passes through the entrance induction coil 1 to generate an induction signal. After the reader reads the card, the card information is uploaded to the host database and the vehicle information is retrieved at the same time.
◇ The vehicle is weighed on the scale, and the display screen displays the weight information of the weighing, and at the same time captures the image information.
◇ After the weighing is completed, the vehicle will pass through the ground-sensing coil at 2 o’clock and lift the gate.
◇ After the vehicle is released, the green light will be on at the same time when the gate is released, allowing the next vehicle to enter.
(According to the actual situation, after identifying the vehicle number information, the automatic barrier gate will lift the gate, the vehicle will be weighed, and the automatic barrier will stop the next vehicle from weighing) (see the picture above)
Four, system advantages
◇ The vehicle number recognition accuracy can reach 99.99%, which is suitable for various harsh environment applications such as wind, snow, rain, and fog;
◇ The data in the label is highly confidential, and the electronic label (electronic license plate) cannot be forged or copied, which fundamentally eliminates the phenomenon of copying, forgery, and cheating.
◇ The vehicle electronic tag adopts passive technology, which has a long service life and does not require maintenance;
◇ The automatic collection speed is fast, which can realize fast weighing, improve the efficiency of weighing, and avoid the phenomenon of queuing overbalance;
◇ Plug the loopholes of human operation. Due to the method of automatically reading data, all over-balanced vehicles are automatically counted by the computer, eliminating manual intervention, automatically recording data, and automatically verifying and releasing.
◇ Dynamic distance recognition, the recognition distance is more than 7 meters, and the adaptable vehicle speed can be as high as 80km/h.
5. System implementation benefits
The automobile intelligent weighing system realizes real-time monitoring of the metering site through the automatic collection of the license plate number, and achieves the full automation of the data and information collection in the metering process, ensuring the accuracy and notarization of the information collection, and greatly reducing the labor of the personnel. Strength, improve work efficiency and reduce economic losses.
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