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A kind of microwave weighing sensor and dynamic weighing method of vehicle

A weighing sensor and dynamic weighing technology, which is applied to weighing equipment, instruments, weighing, etc. that use elastically deformable parts, can solve the problems of vehicle overweight speed limit, inaccurate weighing results, and low measurement accuracy , to achieve the effect of long service life, stable working performance and high measurement accuracy

Inactive Publication Date: 2016-08-17
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the existing technology, an object of the present invention is to provide a microwave weighing sensor, which solves the technical problems of the existing weighing sensor with low measurement accuracy and inaccurate weighing results caused by limited applicability
[0005] Another object of the present invention is to provide a dynamic weighing method for vehicles, which solves the limitation of the existing dynamic weighing method on the vehicle overbalance speed and the limitation that the overbalance equipment can only detect the load of static or low-speed passing vehicles technical issues

Method used

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  • A kind of microwave weighing sensor and dynamic weighing method of vehicle
  • A kind of microwave weighing sensor and dynamic weighing method of vehicle
  • A kind of microwave weighing sensor and dynamic weighing method of vehicle

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Effect test

Embodiment 1

[0041] Comply with the above technical solutions, such as Figure 1 to Figure 4 As shown, this embodiment provides a microwave load cell, which includes two parts, one part is a cylindrical cavity resonator 1-1 with both ends short-circuited by a metal plate, that is, a closed cylindrical cavity resonator 1-1, The other part is the probe 1-2 used to excite the electromagnetic field in the resonant cavity 1-1. The probe 1-2 excited as a magnetic dipole is placed along the radial direction of the resonant cavity 1-1, and the probe 1-2 extends into the The cavity of the resonant cavity 1-1 does not pass through the resonant cavity 1-1 to excite the electromagnetic field in the resonant cavity 1-1; the probe 1-2 is used to input a frequency-sweeping microwave signal, and the resonant cavity 1-1 is squeezed Compression deformation can change the frequency of the sweeping microwave signal in the resonant cavity 1-1, and realize microwave weighing according to the corresponding relat...

Embodiment 2

[0048] In the dynamic weighing process of this embodiment, some other sensors are added to form a vehicle dynamic weighing system to dynamically weigh the vehicles in the monitoring area.

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Abstract

The invention discloses a microwave weighing sensor and a dynamic weighing method for a vehicle. The frequency-sweeping microwave signal is transmitted to a resonant cavity laid in a monitoring area through a probe. The resonant cavity is deformed when the vehicle passes by, and the deformation makes the output The resonant frequency is different from the input resonant frequency and changes. From the functional relationship between the calibrated frequency change of the vehicle with known weight and the vehicle weight, the frequency change produced by the moving vehicle to the microwave load cell is detected. According to the functional relationship, it can be obtained corresponding vehicle weight. The technical problem of inaccurate weighing results caused by the low measurement accuracy of the existing load cells and the limited applicability is solved. It solves the technical problem that the existing dynamic weighing method limits the vehicle overbalance speed and the overbalance equipment can only detect the load of static or low-speed passing vehicles.

Description

technical field [0001] The invention belongs to the field of dynamic weighing and relates to a weighing sensor, in particular to a microwave dynamic weighing sensor and a dynamic weighing method for vehicles. Background technique [0002] With the continuous development and expansion of the road transportation industry and commercial trade, the volume of logistics transportation has increased rapidly, and a series of problems such as vehicle overloading, traffic accidents, road maintenance, infrastructure safety and environmental pollution have followed. Therefore, quickly and effectively curbing overloaded and overrun transportation has become the top priority in the current national transportation management work. With the increasingly prominent problem of overloading, international traffic management departments have higher and higher requirements for the load management of transported vehicles, not only requiring accurate measurement but also requiring simple, efficient ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G19/03G01G3/16
Inventor 郭晨靳钊贺之莉秦鸿瑜刘策宋焕生
Owner CHANGAN UNIV