Automatic detection method for broken wires of automobile front windshield wired glass

A technology of automatic detection and wired glass, applied in radiation pyrometry, measuring electricity, measuring devices and other directions, it can solve the problems of many tungsten wires, inability to deicing in some areas of the front block, easy to miss detection, etc., reducing the number of tungsten wires. The number of missed inspections, the overall temperature of the glass is constant, and the effect of controlling the heating time

Inactive Publication Date: 2018-09-04
EAST CHINA UNIV OF SCI & TECH
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Problems solved by technology

[0004] The problems existing in the existing detection methods are as follows: ①Two people are required to move the glass to the inspection rack, and after the tungsten wire is energized, visually observe whether the clip wire is disconnected, which is easy to miss inspection, resulting in the failure of deicing in some areas of the front block; ②Offline detection, And the number of tungsten wires is large, and the detection time is 3min / piece (long time-consuming)

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  • Automatic detection method for broken wires of automobile front windshield wired glass
  • Automatic detection method for broken wires of automobile front windshield wired glass
  • Automatic detection method for broken wires of automobile front windshield wired glass

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Embodiment

[0028] Infrared radiation is one of the most widespread electromagnetic radiations in nature. It is based on the fact that any object will produce its own molecular and atomic irregular movements in a conventional environment, and continuously radiate thermal infrared energy, molecular and atomic movements. The more intense, the greater the energy of the radiation, and vice versa, the smaller the energy of the radiation.

[0029] Objects with a temperature above absolute zero will radiate infrared rays due to their own molecular motion. After the power signal radiated by the object is converted into an electrical signal by the infrared detector, the output signal of the imaging device can completely simulate the spatial distribution of the surface temperature of the scanned object one by one. After being processed by the electronic system, it is transmitted to the display screen and obtained The thermal image corresponding to the heat distribution on the surface of the object....

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Abstract

The invention relates to an automatic detection method for broken wires of automobile front windshield wired glass. The method comprises the steps that metal wires in the wired glass are electrified and heated; the surface temperature of the wired glass is measured; and the number of broken metal wires is determined according to the regional temperature difference of the surface. Compared with theprior art, the method provided by the invention has the advantages that the method of surface temperature difference detection is used to infer the number of broken wires; a user does not need to carry out macroscopic observation one by one; the detection efficiency is improved; and the number of missed inspections is reduced; an infrared thermal imager measures the surface temperature of the wired glass; and industrial automatic detection is realized.

Description

technical field [0001] The invention relates to a method for detecting the quality of wired glass, in particular to an automatic detection method for wire breakage of the wired glass of the automobile front shield. Background technique [0002] When a car driving or parked outdoors encounters icy and snowy weather, the front windshield tends to accumulate ice and snow, and the efficiency of cleaning with wipers or manual cleaning is low. The tungsten wire in the wired glass melts the surrounding ice and snow after being energized and heated, so as to achieve the purpose of automatic deicing. Due to the unavoidable phenomenon of broken wires in production, when the number of broken wires is too large, it will affect the deicing effect. [0003] At present, the method for checking whether the wires of the wire-wired automobile glass of the front windshield is broken is as follows: set the sample placement bracket between the slide projector and the white screen, place the gla...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01J5/00
CPCG01J5/00G01R31/50
Inventor 孙文博范体军
Owner EAST CHINA UNIV OF SCI & TECH
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