Road vehicle dynamic weighing method and device

Abstract

The invention relates to a dynamic weighing device for road vehicles, comprising: a first weighing platform and a second weighing platform, the first weighing platform and the second weighing platform are placed in the same frame or in the same foundation pit; the first The sensor group is installed on the first weighing platform to detect the weight of the single axle of the vehicle passing the first weighing platform; the second sensor group is installed on the second weighing platform to detect the weight of the vehicle passing through the first weighing platform. The weight of the single axle or axle group of the vehicle on the second weighing platform; and a weighing instrument, which connects the first sensor group and the second sensor group, and the weighing instrument includes: an axle load acquisition unit, used to obtain the weight from the The first sensor group sequentially collects the single-axle weight signals of each axle group of the vehicle, and collects the axle group weight signals of each axle group from the second sensor group; The axle weight signal and the weight signal of each axle group are used to calculate the final weight of each axle group.

Description

technical field [0001] The invention relates to a vehicle weighing technology, in particular to a road vehicle dynamic weighing method and equipment. Background technique [0002] Vehicles need to be weighed in the fields of highway toll collection, overload and overrun monitoring, etc. In order to improve the weighing efficiency, the dynamic weighing method is usually adopted for the moving vehicle. [0003] At present, automatic weighing instruments for dynamic road vehicles have been widely used in the fields of road weight toll collection and overload monitoring. In the prior art, there are mainly two ways of vehicle weighing and axle weighing. [0004] For the vehicle weighing method, due to the large structure of the weighing instrument itself, the amount of foundation construction is large, the installation is difficult, and the investment is large, and the weighing instrument cannot be installed along the slope and the function of continuous passing vehicles, so th...

AI Technical Summary

Problems solved by technology

At the same time, when a truck with a coupling passes, affected by the flatness of the scale body and the road surface, the weight of each single axle in the axle group will be redistributed, which will eventually lead to an error between the accumulated weight of the axle group and the actual axle group weight. bigger

For some systems with dual scales and multiple scales, technically, although the number of weighings of each axis has been increased to improve the accuracy and repeatability, it will still be affected by the flatness of the scale body and the road surface. , and it is impossible to avoid the influence of vehicle cheating such as "punch brake pound" on the accuracy

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