Background introduction
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In recent years, a large number of over-limit transport vehicles have been driven on highways, causing serious road damage, greatly shortening the service life, and at the same time endangering the lives and property of the people. In the actual management work, it is difficult to judge the size of the vehicle's cargo load by the naked eye. The system combined with the application of the dynamic truck scale can effectively solve the problem of highway dynamic weighting, reduce manual intervention and improve economic efficiency.
In view of the current way that the domestic transportation department's road tolls will tend to be charged by weight, the application of dynamic truck scales in highway management and toll management is imperative, in order to solve the problem of ordinary IC cards or proximity proximity cards in conducting road vehicle inspections. The phenomenon of “checkpoint traffic bottleneck†is generated, which affects traffic flow. The combination of our long-distance automatic vehicle number identification card system and dynamic truck scale will solve this problem fundamentally.
System function, characteristics
1. Through the system, it is convenient to realize the purpose of “road freight vehicles according to the actual weight†for road tolls.
2. Through the system, it is convenient to realize the “restricted traffic of overweight vehicles†to achieve the purpose of protecting the road.
3. Because the system uses RF technology, the effective distance between the identification card and the card reading system is 5-8 meters, which can realize the function of “no parking inspectionâ€, and prevent and control the phenomenon of “checking station traffic bottleneck†and affect traffic flow.
4. The tag card is passive (without battery). The effective use time is more than 10 years, and the working temperature is -40 °C ~ 85 °C.
5. This equipment can work in harsh environments such as high dust, oil, rain and snow. 6. The card has a global unique ID number to prevent cheating. Even if the card is maliciously changed after the weighing process, the card number does not match the vehicle information recorded by the central system, and can be easily investigated.
System equipment
Vehicle identification card
Reader
Supporting antenna
System workflow introduction
1. When the truck enters the entrance of the road, the driver receives a label card from the staff. The card has the world's unique ID number and the code set by the road management department. If necessary, the license plate number of the card can be obtained through the computer. Information such as models, road locations, etc. are entered into the computer and networked to the central server via a computer.
2. When the weighing station is weighed, drive the dynamic truck scale at a certain speed, and the driver will gently shake the label card in the handle of the car to the direction of the antenna of the card reader, and the card reader will quickly read the card. The internal information, and the card reader reads the card number and sends a corresponding instruction to prompt the driver to read the card successfully. At the same time, the vehicle load recorded by the truck scale is output corresponding to the read tag card number and is networked to the central server through the computer. At this time, if the vehicle is not overweight, the vehicle can drive into the road when the gate is opened, and it is forbidden to travel on the road if it is overweight. (The connection diagram is as follows)
3. When the truck arrives at the toll booth, the label card in the driver's handle is gently swayed in the direction of the card reader antenna. When the card reader reads the card number, it will give corresponding instructions, such as "Please wait, the accounting fee is being processed" . At this time, the computer combines the read card number with the vehicle weight data of the network center and the number of kilometers traveled by the vehicle, and reasonably calculates that the toll fee is displayed on the display. At this time, the driver puts the money and the tag card. At the same time, the toll collector will be handed over to collect the invoice and the vehicle will be released when the gate is opened.
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