Method and system for detection of circuit board contamination

A pollution detection and circuit board technology, which is applied in the field of communication equipment detection and circuit board pollution detection and alarm, can solve the problems of randomness and strong subjectivity, and achieve the effect of saving maintenance expenses, improving operation reliability and avoiding risks.

Inactive Publication Date: 2009-07-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The invention provides a circuit board pollution detection and alarm method to solve the problem of too much randomness and subjectivity in judging the degree of circuit board pollution in the prior art

Method used

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  • Method and system for detection of circuit board contamination
  • Method and system for detection of circuit board contamination
  • Method and system for detection of circuit board contamination

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Embodiment Construction

[0018] Before specifically introducing the circuit board pollution detection and alarm method and system of the present invention, some factors that will affect the judgment are introduced:

[0019] In fact, when judging whether it is necessary to clean, we should not only rely on the dust of the equipment to pollute the appearance, but also judge the chemical composition and humidity of the substances in the dust, as follows:

[0020] 1. When the chemical composition of the dust is mainly neutral and insoluble in water, and the humidity in the area is relatively low, even if there is a high accumulation on the circuit board, it will generally not cause equipment corrosion and cause failure, that is In this case, the frequency of cleaning should be low, and cleaning is only required when the thickness of the dust is so large that it may affect the heat dissipation of the heat-generating device.

[0021] 2. When the chemical composition of the dust contains a large amount of ha...

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Abstract

The invention relates to communication equipment, in particular to communication equipment safety detection technology, and discloses a circuit board pollution detection and alarm method to solve the problem of poor accuracy caused by the lack of quantitative detection schemes when judging the degree of circuit board pollution in the prior art . The method comprises the steps of: detecting the operating temperature of the constant power element on the surface of the contaminated circuit board and the ambient temperature of the circuit board; calculating the difference between the operating temperature and the ambient temperature; and when the temperature difference is equal to or greater than the set When the temperature threshold is set, an alarm signal of pollution exceeding the standard is issued.

Description

technical field [0001] The invention relates to communication equipment, in particular to the detection technology of communication equipment, and discloses a circuit board pollution detection and alarm method. Background technique [0002] Due to the serious air pollution in recent years, there is a lot of dust in the air, coupled with the limitation of the environmental conditions of the communication equipment room, the operation of the equipment air supply system, the renovation and decoration of the machine room, etc., the precision electronic equipment under long-term continuous operation will be in the air. A certain amount of dust is covered within a certain period of time. When the dust accumulates to a certain extent, it will have a negative impact on the reliable operation of the equipment. [0003] In addition, in order to reduce manufacturing costs and operating costs in recent years, many equipment suppliers have launched unsealed outdoor communication equipmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/04G01R31/28G01R27/00
Inventor 陈普养徐焰
Owner HUAWEI TECH CO LTD
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