Method and device for dynamic weighing estimation of toll booth vehicles

Abstract

The invention discloses a method and device for dynamic weighing and estimation of vehicles at a toll station. The left and right sides of the toll station road are respectively equipped with a laser transmitter group and a photoelectric receiver group; the vehicle to be tested first blocks the laser light emitted by the first laser transmitter, and then Block the laser emitted by the second laser transmitter, the MCU control system calculates the speed of the vehicle to be measured before passing the impact force measuring device, and the left and right pressure sensor groups input the signals of the impact force of the left and right wheels into the MCU control system; The speed and impact force of the vehicle to be tested are used as the input of the BP artificial neural network model, and the mass is used as the output to estimate the vehicle mass; the present invention comprehensively considers the kinetic energy of the moving vehicle and the impact force generated during the collision with the force measuring device. Using road speed bumps to allow vehicles to maintain a certain speed passing through the speed bumps, combined with artificial neural network technology to achieve indirect measurement of vehicle quality and improve toll station traffic efficiency.

Description

technical field [0001] The invention relates to the field of vehicle weighing at toll stations, and can quickly measure the mass of vehicles passing through toll stations by estimating the mass of vehicles passing through toll stations, especially for vehicles passing through toll stations dynamically, so as to improve the traffic efficiency of toll stations. Background technique [0002] Vehicle overloading will not only damage the road surface, increase the cost of road maintenance, but also cause traffic accidents. In order to control the phenomenon of vehicle overloading, it is necessary to measure the quality of vehicles passing on the road. The traditional vehicle quality measurement method is carried out when the vehicle remains stationary. Although static weighing has high measurement accuracy, the measurement speed is relatively slow, resulting in low efficiency of toll booths and easy to cause traffic jams. At present, the dynamic weighing system of the highway tol...

AI Technical Summary

Problems solved by technology

[0002] Vehicle overloading will not only damage the road surface, increase the cost of road maintenance, but also cause traffic accidents. In order to control the phenomenon of vehicle overloading, it is necessary to measure the quality of vehicles passing on the road

The traditional vehicle quality measurement method is carried out when the vehicle remains stationary. Although static weighing has high measurement accuracy, the measurement speed is slow, resulting in low efficiency of toll booths and easy to cause traffic jams.

At present, the dynamic weighing system of the highway toll station is generally used to measure the quality of passing vehicles. The dynamic weighing system is mainly composed of a weighing platform, a load cell and a weighing instrument. For the load cell, when the sensor is stressed, the axle load signal is converted into a voltage signal and transmitted to the weighing instrument, and the weight of the vehicle is displayed after the instrument processing; Fast measurement cannot be achieved well, and the force acting on the weighing platform is disturbed by other external factors besides the real axle load, thus affecting the accuracy of dynamic weighing

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