Truck weighing system and method capable of being used in movement state and static state

Abstract

The invention provides a truck weighing system capable of being used in a movement state and a static state. The system is composed of a weighing terminal and four detection nodes, the detection nodes obtain the carrying capacity through an arrangement mechanism, the arrangement mechanism is composed of a left ferrule, a right ferrule, a metal plate and a strain sheet, the strain sheet is fixed on the metal plate, and the metal plate is connected with the right ferrule through a pull rod and a spring. A weighing method includes the following steps that 1, a coordinate system is established; 2, loads of the detection nodes are obtained; 3, the vehicle state is judged; 4, the acceleration of gravity is obtained; 5, an error vector is obtained through calculation; 6, the output angular velocity is corrected; 7, data updating is conducted on a quaternion differential equation; 8, the dip angle and other parameters of a truck are obtained; 9, the carrying capacity of the truck is calculated. According to the truck weighing system and method capable of being used in the movement state and the static state, accurate measurement of the carrying capacity is achieved, damage of a truck plate spring is avoided, the dip angle of the truck is used for obtaining the actual load of the truck, and the defect that in the past, the carrying capacity of a vehicle can not be accurately measured when the vehicle is in the movement state is overcome.

Description

technical field [0001] The invention relates to a truck weighing system and a weighing method, more specifically, to a truck weighing system and a weighing method for both static and dynamic trucks. Background technique [0002] In many countries in the world, road vehicles are generally overloaded in the process of transporting goods, and the proportion of overloaded vehicles is quite high. Overloading seriously endangers driving safety, disturbs the normal transportation order, overruns accelerates the damage of roads and bridges, increases the maintenance costs of roads and bridges, and causes environmental damage. [0003] Over the past ten years, the government has invested a lot of manpower, material and financial resources every year in overload control, but the phenomenon of overloading still exists widely. There are mainly three methods for existing overload detection: (1) fixed detection point detection. When the freight vehicle passes the sensor buried in the gr...

AI Technical Summary

Problems solved by technology

Since the leaf spring is stacked by multi-layer arc-shaped plates, for the same truck and the load is equal, the deformation of different parts of the leaf spring is different, and the measured results are also different when the strain gauge is pasted on different parts. As a result, there is no suitable detection mechanism at present, which will not cause damage to the existing leaf spring, and can obtain accurate measurement results

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