Vehicle dynamic weighing system

Abstract

The invention discloses a vehicle dynamic weighing system, comprising a weighing sensor, a charge amplifier and a controller. The weighing sensor comprises two groups of quartz sensors which are paved in a staggered manner; each group of the quartz sensors comprises two quartz piezoelectric sensors; the two quartz piezoelectric sensors in the each group of the quartz sensors are respectively transversely arranged on a left half lane and a right half lane at a front position and a back position; when a vehicle passes through the weighing sensor, the controller respectively calculates a vehicleweight value according to waveform signals generated by each group of the quartz sensors; and the calculated vehicle weight values are averaged, so as to obtain a final vehicle weighing value. The two groups of the quartz sensors are arranged in a parallel and staggered manner, so that an abnormal condition is effectively treated. Even if the vehicle passes through a sensor laying road section ata non-uniform velocity or in an 'S' shape, the deviation is corrected by averaging through calculation results of the two groups of the quartz sensors, so that the weighing result is more accurate.

Description

technical field [0001] The invention relates to the weighing field, in particular to a vehicle dynamic weighing system. Background technique [0002] The dynamic weighing of existing vehicles generally uses a single row of quartz sensors to cover the lane. The quartz sensors detect the pressure and speed of each axle of the vehicle passing on the road surface, and then use an embedded computer to calculate the weight of each axle and the overall weight of the vehicle. gross vehicle weight. Its calculation formula is: [0003] Axle weight = axle speed / sensor width * piezoelectric waveform integral area * correction factor [0004] The total weight of the vehicle = the sum of the axle loads [0005] It can be seen from the above formula that when the vehicle passes at a non-uniform speed or takes the "S" route, this will lead to deviations in the weighing results. Therefore, the single row of quartz sensors cannot solve the weighing deviation caused by abnormal passing o...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a dynamic weighing system for vehicles, which solves the problem that the existing single-row quartz weighing system cannot handle abnormal conditions well, resulting in inaccurate weighing results, and provides a dynamic weighing system for vehicles. Four quartz sensors are laid in parallel and staggered on the toll lane, which can effectively deal with the abnormal situation when the vehicle passes the sensor road section, and accurately measure the vehicle weight

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