Transducer calibration method for vehicle weighing system

A calibration method and vehicle weighing technology, which is applied in the field of sensor calibration of vehicle weighing systems, can solve problems such as large data errors, and achieve the effects of easy maintenance, improved weighing accuracy, and cost savings

Active Publication Date: 2014-02-19
建平东鑫智能装备有限公司
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a sensor calibration method for a vehicle weighing system in view of the defect of large data errors in vehicle dynamic weighing in the prior art

Method used

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  • Transducer calibration method for vehicle weighing system
  • Transducer calibration method for vehicle weighing system
  • Transducer calibration method for vehicle weighing system

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments.

[0031] A design method for an intelligent vehicle weighing system, which includes strain resistance analog sensors, a junction box, and a sensor calibration algorithm, the steps of which are as follows:

[0032] 1) Reference figure 1 , Weld a sensor at both ends of the car axle; figure 1 Among them, a total of 6 sensors are welded, among which sensor 1A and sensor 1B are welded on the same axle; sensor 2A and sensor 2B are welded on the same axle; sensor 3A and sensor 3B are welded on the same axle superior. When welding, use top-mounted sensors as much as possible. If there is no space to weld top-mounted sensors, use side-mounted sensors;

[0033] 2) Connect the sensor to the data collector with an analog line;

[0034] 3) Calibrate the sensor and store the calibrated parameters in the memory of the main controller and data collector;

[0035] 4) Calculate the weig...

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Abstract

The invention discloses a transducer calibration method for a vehicle weighing system. The method mainly comprises the following steps that a strain resistance type analog transducer is arranged on an automobile axle, the transducer is calibrated, a calibration coefficient of the transducer is calculated by adopting nonlinear least squares based on L2 regularization, and cargo weight of a heavy-duty lorry is calculated according to an AD value output by the transducer and the calibration coefficient of the transducer. In the driving process of an automobile, stable cargo weight data with high precision also can be obtained through the transducer calibration method for the vehicle weighing system.

Description

technical field [0001] The invention relates to the field of vehicle weighing, in particular to a sensor calibration method of a vehicle weighing system. Background technique [0002] With the rapid development of the road transportation industry, overloading of trucks is common in transportation. Investigations show that if the axle load of vehicles traveling on the road exceeds 30% of the limit, the service life of the road will be shortened by 56%, which will greatly increase the maintenance cost of the road and shorten the service life of the road surface. In addition, due to overloading, the dynamic performance of the vehicle is affected, which seriously affects the safe driving of the vehicle. Therefore, vehicle dynamic weighing technology has become the key technology and development direction of vehicle load measurement. The main problem of the current vehicle dynamic weighing technology is that the weighing data has a large error (general error is about 10%-20%) a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G23/01
Inventor 刘波
Owner 建平东鑫智能装备有限公司
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