Toll station vehicle dynamic weighing estimation method and device

Abstract

The invention discloses a toll station vehicle dynamic weighing estimation method and device. The method comprises the steps that a laser emitter set and a photoelectric receiver set are arranged on the left side and the right side of a toll station road respectively; a vehicle to be measured blocks laser emitted by the first laser emitter at first and then blocks laser emitted by the second laser emitter, an MCU control system calculates the speed of the vehicle to be measured when the vehicle passes through an impact force measurement device, and a left pressure sensor set and a right pressure sensor set input signals of impact force of a left wheel and a right wheel into the MCU control system; the speed and impact force of the vehicle to be measured serve as input of BP artificial neural network model, mass of the vehicle to be measured serves as output, and the mass of the vehicle is estimated. According to the toll station vehicle dynamic weighing estimation method and device, the relation between the kinetic energy of the moving vehicle and the impact force generated when the vehicle collides with a force measurement device is comprehensively considered, a road speed bump is utilized, the vehicle is allowed to keep a certain speed when passing through the speed bump, and meanwhile the artificial neural network technology is utilized, so that indirect measurement of the vehicle mass is achieved, and toll station going-through efficiency is improved.

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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