Method for rapidly calibrating vehicle-mounted weighing system

Abstract

The invention discloses a method for rapidly calibrating a vehicle-mounted weighing system. The axle weight is collected by adopting a sensor and the wheel weight is collected by adopting wheel weight weighing equipment; different weights are loaded on a vehicle and output values of the sensor and the wheel weight weighing equipment are subjected to quadratic fitting to obtain a calibration coefficient; and the coefficient is written into a processor to finish rapid calibration of the vehicle-mounted weighing system. The defects that traditional calibration wastes time and labor are overcome, and the calibration efficiency and the calibration precision are improved; and the method has the characteristics of simple calibration process, high precision, low cost, high efficiency and rapidness and the like. No special requirements on a loading position in the calibration process exist, so that the vehicles with a fixed mass center, such as a cement tank car and a liquid tank car, can be calibrated, and an applicable range is wide.

Description

technical field [0001] The invention belongs to the field of vehicle weighing, and in particular relates to a method for rapidly calibrating a vehicle weighing system. Background technique [0002] With the vigorous development of road transportation, the number of trucks has increased sharply, and the problem of vehicle overloading has followed. Vehicle overloading often causes road traffic accidents, casualties, and greatly shortens the service life of infrastructure such as roads and bridges. In addition, due to overloaded transportation, the dynamic performance of the vehicle is affected, which seriously affects the safety of vehicle transportation, and seriously damages the life and property safety of the country and the people. In this regard, it has become a trend to vigorously develop on-board weighing systems. The main problems in the current on-board weighing technology are that the weighing data error is large (generally 10% to 20%), and the use stability is poor,...

AI Technical Summary

Problems solved by technology

[0002] With the vigorous development of road transportation, the number of trucks has increased sharply, and the problem of vehicle overloading has followed. Vehicle overloading often causes road traffic accidents, casualties, and greatly shortens the service life of infrastructure such as roads and bridges.

In addition, due to overloaded transportation, the dynamic performance of the vehicle is affected, which seriously affects the safety of vehicle transportation and brings serious damage to the safety of life and property of the country and people.

In this regard, it has become a trend to vigorously develop vehicle-mounted weighing systems. The main problems of vehicle-mounted weighing technology at present are that the weighing data has a large error (generally 10% to 20%), and the use stability is poor, which limits the use of vehicle-mounted weighing systems. Promotion and use of heavy systems

The traditional on-board weighing calibration uses standard weights or standard substitutes. This method has a large workload and a long working cycle. One calibration may repeatedly move several tons or even dozens of tons of weights. It requires the cooperation of multiple people and the calibration efficiency is low. , only suitable for the calibration of small batches of vehicles

For many special vehicles (such as cement tankers, liquid tankers, etc.), due to their fixed center of mass characteristics, it is impossible or difficult to load weights or standard objects at different centers of gravity, which increases the difficulty of calibration or cannot be calibrated at all.

Therefore, the traditional on-board weighing system calibration method has obvious technical defects and needs to be improved

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