How to get reasonable application of sensors on highway

We know that when the truck is overweight, the pressure per unit area of the road surface is increased. Overloading will cause severe fatigue and depression of the road surface. At the same time, most traffic accidents are caused by overloading vehicles. How to detect the weight of the vehicle? This requires the use of load cells.

Composition and principle of weighing system:

1. The weighing system is mainly composed of weighing sensor, vehicle separator, tire recognizer, ground sensing coil and control cabinet.

Weighing sensor: It mainly completes the work of axle weighing, speed detection, and axle type judgment. Vehicle separator: used to separate vehicles and provide start and end signals. Tire identifier: mainly used to detect the number of tires passing through each axle of the vehicle. Ground sensing coil: It is mainly used to complete the detection of speed measurement and reversing, and together with the infrared separator to judge objects or people other than vehicles when passing, reducing errors. Control cabinet: Process the information sent by the load cell and coil, and obtain the load information of the vehicle after analysis and processing.

2. The working principle of the system. When the vehicle enters the toll lane, its wheel axle sequentially presses the ground sensing coil, load cell, vehicle separator, and axle recognizer laid on the road surface. The load cell will detect the axle load and axle of each axle. Type (single axle, coupling), the tire identifier will detect the tire type (single and twin tires) information, and the vehicle separator can accurately determine whether the vehicle has passed completely. When the vehicle has completely left, the control processor transmits information such as the weighing result and the model discrimination result to the lane toll computer. The lane toll computer charges the vehicle by weight based on the weighted toll rate, and displays the vehicle's load information and the amount to be paid on the weight display screen. It can be seen from the whole working principle that the weighing sensor is the key equipment of the weighing and charging system. The weighing accuracy and stability of the weighing sensor will directly affect the weighing accuracy of the weighing and charging system.

This type of load cell used on highways requires a large range, and the accuracy requirements are not particularly high, but the long-term stability must be good. With the development of sensors and other electronic equipment, it will become more and more intelligent, so as to realize unmanned control. It can prevent overweight vehicles from passing, and can also charge vehicles based on their weight.

Changzhou Hengtuo Electronic Weighing Apparatus Co., Ltd. provides you with high-quality products! Preferential price! Excellent service!

Company website: http://www.czhoto.com/