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On-line recognition method for gas sensor adjustment in coal mine safety monitoring system

A gas sensor and monitoring system technology, applied in the field of coal mine safety, can solve the problems of not supporting online identification for adjustment, inflexible operation, inconvenient use, etc., and achieve the effect of realizing online identification and improving anti-interference ability.

Active Publication Date: 2017-09-29
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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Problems solved by technology

However, the existing frequency output sensors do not support online identification of adjustment, the operation is not flexible enough, and it is inconvenient to use

Method used

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  • On-line recognition method for gas sensor adjustment in coal mine safety monitoring system

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing and embodiment: figure 1 It is a schematic diagram of the principle of the present invention.

[0025] Such as figure 1 As shown, the coal mine safety monitoring system gas sensor calibration online identification method in this embodiment is characterized in that: comprising

[0026] a. Control the gas sensor to output the characteristic frequency under various adjustment states;

[0027] b. Analyze the characteristic frequency in real time and identify the adjustment status;

[0028] c. Judge the operation of the sensor according to the identified adjustment state, and count the adjustment process and time.

[0029] d. The monitoring system analyzes the adjustment status and makes statistics on abnormal information.

[0030] In this example, when the operator operates the remote control to adjust the gas sensor, the gas sensor will output the characteristic frequency. Wh...

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Abstract

The online identification method for gas sensor adjustment of the coal mine safety monitoring system provided by the present invention includes: a. controlling the gas sensor to output characteristic frequencies under various adjustment states; b. analyzing the characteristic frequency in real time and identifying the adjustment state; c. Judge the operation of the sensor according to the identified adjustment state, and count the adjustment process and time; the coal mine safety monitoring system gas sensor adjustment online identification method provided by the present invention can avoid the frequency range of the normal output of the sensor, and adopt the characteristic frequency The adjustment of the sensor does not affect the normal output of the sensor, and the online identification of the adjustment status is realized by analyzing the characteristic frequency in real time.

Description

technical field [0001] The invention relates to the field of coal mine safety, in particular to an online identification method for adjusting gas sensors in a coal mine safety monitoring system. Background technique [0002] Coal mine is a very important energy source. It is generally divided into underground coal mines and open-pit coal mines. The vast majority of coal mines in my country belong to underground coal mines. Over the past few years, with the development of my country's coal mining industry, many problems have been brought about while improving economic growth, among which safety issues have attracted more and more attention. Coal mine safety has always been a top priority, [0003] The gas sensor is a sensor that continuously monitors the gas concentration in the well around the clock. It uses an acousto-optic alarm system. Once the gas exceeds the standard, the system will immediately remind the workers who are working underground to evacuate to avoid casual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/22
Inventor 郭江涛孙世岭钟宇张加易梁光清田兵郑芳菲
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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