Method and device for measuring tonnage of automobile
A technology of measuring device and measuring method, which is applied in the field of computer application technology and measurement, and can solve the problems that smoothness and vehicle speed measurement results are greatly affected, and the process of measurement signal processing and parameter identification is complicated, etc.
Inactive Publication Date: 2012-07-04
NORTHWESTERN POLYTECHNICAL UNIV
View PDF1 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
These two methods both use dynamic measurement technology, and both make full use of the changes in vehicle body parameters, and the hardware implementation process is not complicated; however, the signals are obtained in real time during vehicle driving, and the measurement signal processing and The parameter identification process is relatively complicated. On the other hand, the smoothness of the road surface and the vehicle speed also have a great influence on the measurement results.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0054] refer to figure 1 , figure 2 , first of all, according to the basic principles of classical mechanics, the mathematical relationship model between load and tire pressure is established, which provides a theoretical basis for the realization of the measuring device; secondly, according to the established mathematical model, a full-digital portable tonnage measuring device is designed.
[0055] The method of measuring the load capacity of a vehicle by two changes in tire pressure before and after loading. Specifically, the essence of its method consists of the following steps:
[0056] The first step: the relationship between load and force.
[0057] The relationship between the center of gravity of a truck and the load:
[0058] X 2 = m * x 0 + M * y ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method and a device for measuring the tonnage of an automobile. The method comprises the following steps of: performing simplified modeling on the tire model of the automobile to obtain a mathematical expression representing change between carrying capacity and tire pressure; designing and manufacturing a corresponding carrying capacity measuring device on the basis; andindirectly measuring the weight of a load by measuring the air pressure change in the tire before and after the automobile is loaded. The measuring device mainly comprises a portable measuring display terminal, a pressure transmitter and an air guide hose, wherein one end of the pressure transmitter is connected with an air inlet of the tire by the air guide hose with good leakproofness, so that the air pressure in the tire and the pressure transmitter can be communicated, and the air pressure quantity can be converted into standard electrical signal quantity; a handheld terminal can acquire and process an electrical signal representing the air pressure with high resolution and display the load carrying capacity of the automobile by processing and calculating the air pressure change before and after the automobile is loaded; data processing is simple; and the measuring device and the detected object are separated from each other. Therefore, the device has the advantages of small volume, light weight, low cost, high independence and convenient carrying.
Description
technical field [0001] The invention relates to a method for measuring the tonnage of an automobile and a measuring device thereof, belonging to the fields of computer application technology and measurement technology. Background technique [0002] In recent years, with the rapid growth of industrial production and commercial trade, the competition in the road transport industry has become more and more fierce, and the phenomenon of over-limit and overloaded transport of vehicles has continued to increase, and vehicle weighing technology has played an increasingly important role. [0003] At present, the most widely used vehicle scale is the electronic scale. Its principle is to measure the load after the vehicle passes through the electronic scale. posed many difficulties. Many related scientific research institutions are also developing new measurement methods for these problems, the most typical of which are two: one is static measurement technology. By installing a set...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01G19/02G01L17/00
Inventor 石伟骆光照杨峰黄立梅
Owner NORTHWESTERN POLYTECHNICAL UNIV