CN101649751B - Monitoring method of coal mine safety monitoring system - Google Patents
Monitoring method of coal mine safety monitoring system Download PDFInfo
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- CN101649751B CN101649751B CN2009103063389A CN200910306338A CN101649751B CN 101649751 B CN101649751 B CN 101649751B CN 2009103063389 A CN2009103063389 A CN 2009103063389A CN 200910306338 A CN200910306338 A CN 200910306338A CN 101649751 B CN101649751 B CN 101649751B
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Abstract
The invention relates to a monitoring method of a coal mine safety monitoring system, comprising the following steps: establishing a relation between an analog variable measuring value and a measuring site; establishing a 'monitoring data normal expression model' (a permissible limit value range) corresponding to the analog variable measuring value and the measuring site; discovering an abnormal condition and alarming according to the condition that whether the corresponding relation of the analog variable measuring value and the measuring site conforms to the 'monitoring data normal expression model'. The monitoring method of the coal mine safety monitoring system has a identifying and judging characteristic to establish a sensor 'non-transfinite principle monitoring data normal expression model' and comprises the association relation of measuring values among a plurality of sensors and the time-variation relation , instead of a simple concentration index size.
Description
Technical field
The present invention relates to a kind of monitoring method of coal mine safety monitoring system.
Background technology
Coal mine safety monitoring system is widely used a kind of watch-dog in the colliery, is mainly used in various environment and equipment state under the monitoring coal mine, and the control of cutting off the power supply when finding gas exceeding limit is found to report to the police when other are unusual.Present coal mine safety monitoring system mainly is that value surpasses or is lower than certain value (being called overload alarm) to (CH4, CO, wind speed etc.) unusual method of discrimination of analog signals.It is distinguishing rule with the size of measured value merely that these methods all are based on single survey mark, and the other unusual (using unusual) in using for the mine supervision system can not be found.For example: Chinese patent application 200510017856.0 discloses a kind of method that a kind of mine gas prevention and control shows with the multisystem informix, it is characterized in that of the identification judging unit of Ti Chuing wherein: index system comprises gas density control index, threshold index, the CO concentration index of varying environment condition, target oxygen concentration, temperature index, wind speed index etc., this method belongs to the overload alarm method.The unusual model of Chinese patent application 200710113902.6 disclosed differentiations also belongs to conventional overload alarm pattern.
Therefore, how to find metrical information unusual (be not placed on the position of regulation as sensor, with foreign matter stop probe detect mouthful wait use unusual) situation, be the technical problem that this area will solve.
Summary of the invention
Technical problem to be solved by this invention provides a kind of monitoring method of coal mine safety monitoring system, is used to find situation about not using in accordance with regulations, such as sensor be not placed on assigned position, stop that probe detects mouthful etc. and use with foreign matter unusual.
For solving the problems of the technologies described above, the invention provides a kind of monitoring method of coal mine safety monitoring system, comprise: analog measurement value and measurement place are set up contact, and set up the analog measurement value and measure place pairing " monitored data normally shows model " (being the allowable value scope), whether the corresponding relation by analog measurement value and measurement place meets " monitored data normally shows model ", comes unusual circumstance and warning.Set up " monitored data normally shows model " of the non-principle that transfinites of sensor, comprise the incidence relation and the time dependent relation of measured value between a plurality of sensors, rather than the size of simple concentration index.
Further, described measurement place comprises upper corner, work plane and the return airway of coal-face in the colliery, also comprise air intake, return aircourse, described analog measurement value is meant the analog measurement value that methane or carbonomonoxide concentration are measured, and described " monitored data normally shows model " comprising: should there be the relation that is arranged in order from big to small in methane that described upper corner, return airway and work plane three places are recorded or carbonomonoxide concentration value.Methane or carbonomonoxide concentration value that methane that intake records or carbonomonoxide concentration value record less than the return aircourse; For two work planes that adopt series ventilation, methane or carbonomonoxide concentration value that methane that early-stage work face records or carbonomonoxide concentration value record less than downstream work plane correspondence position; If do not satisfy in the above-mentioned relation and reach Preset Time, just send warning.
Further, described measurement place comprises the tunnel everywhere in the colliery, and described " monitored data normally shows model " comprising: the sum of products of the measured methane in the tunnel, a downstream in colliery or the concentration value of carbon monoxide and air mass flow equals the fixed proportion of the sum of products of the concentration value of the measured methane in each tunnel, upstream or carbon monoxide and air mass flow.If do not satisfy this condition and reach Preset Time, just send warning; This fixed proportion is the air mass flow in the tunnel, described downstream and the ratio of the air mass flow sum in all tunnels, downstream.
Further, described measurement place comprises coal-face and the driving face in the colliery, described " monitored data normally shows model " comprising: in 2-3 cycle, the amplitude of variation of the measured value of the methane of survey mark or the concentration of carbon monoxide has at least and once reaches preset range, then is considered as normal; Otherwise be considered as unusual and warning.
Further, the maximum value of described preset range and minimum value are by the gas bearing capacity and the decision of used coal winning technology of institute's mining coal seam; The time span in this single cycle determines by coal winning technology, and it is blown out greater than twice or coal-winning machine leaves or the interval of a large amount of coal breakage work steps such as caving coal.
Further, the described cycle can be fixed, and also can be consistent but unfixed in time with the start-stop cycle of coal-winning machine, development machine.
The present invention has positive effect: the monitoring method of coal mine safety monitoring system of the present invention according to " the non-principle that transfinites " by setting up measurement value sensor " monitored data normally shows model ", incidence relation and time dependent relation that it comprises measured value between a plurality of sensors are not to make judgement according to the size of concentration index merely.Particularly, the present invention sets up contact with the analog measurement point and the coal mine environment condition of coal mine safety monitoring system, characteristics according to coal mine production system are set up " monitored data normally shows model ", whether meet " monitored data normally shows model " by the performance of checking the analog measurement data, come unusual circumstance.By this technology, can find the situation that the mine supervision system does not use in using in accordance with regulations, such as not with probe placement at assigned position, probe is artificially shielded or damage etc., it is unusual to find that production system occurs simultaneously.For the mine supervision system provides a kind of new unusual method of detection, enlarged the function of system, also further improved the reliability of system.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the present invention is further detailed explanation, wherein
Fig. 1 is the schematic diagram of the monitoring method of a kind of coal mine safety monitoring system of realization among the embodiment.
Fig. 2 is the schematic diagram that the another kind among the embodiment is realized a kind of monitoring method of coal mine safety monitoring system, and the arrow among the figure is a wind direction.
The specific embodiment
(embodiment 1)
The monitoring method of a kind of coal mine safety monitoring system of the present invention, comprise: analog measurement value and measurement place are set up contact, and set up the analog measurement value and measure place pairing " monitored data normally shows model ", whether the corresponding relation by analog measurement value and measurement place meets " monitored data normally shows model ", comes unusual circumstance and warning.
Described measurement place comprises upper corner, work plane and the return airway in the colliery, described analog measurement value is meant the analog measurement value that methane or carbonomonoxide concentration are measured, and described " monitored data normally shows model " comprising: should there be the relation that is arranged in order from big to small in methane that described upper corner, return airway and work plane three places are recorded or carbonomonoxide concentration value.
See Fig. 1, coal-face should be provided with three sensors in accordance with regulations and (be separately positioned on the upper corner of stipulating in the rules of colliery, work plane, three positions of return airway), in the mine supervision system, adopt following method to realize the abnormal alarm function: to add position attribution respectively for above-mentioned three firedamp sensors that are arranged in coal-face when on the main frame of monitoring system, disposing firedamp sensor or carbon monoxide transducer, if being placed on the measured value of the sensor of upper corner is T0, the measured value that is placed on the sensor of work plane is T1, the measured value that is placed on the sensor of return airway is T2, then, should have following relation: T0 according to " monitored data normally shows model "〉T2〉T1.The monitoring system main frame is differentiated the measured value of these three sensors, if the measured value of three sensors satisfies T0〉T2〉T1, then be considered as normal.If do not satisfy this condition and reach Preset Time (such as 1-3 minute), just send warning.
(embodiment 2)
On the basis of embodiment 1, present embodiment also has following distortion:
According to the relation of the distinguished and admirable formation upstream and downstream in the coal mine roadway, described " monitored data normally shows model " also comprises: the 1) methane that records of intake or the carbonomonoxide concentration value methane or the carbonomonoxide concentration value that should record less than the return aircourse.2) adopt two work planes of series ventilation, methane or carbonomonoxide concentration value that methane that early-stage work face records or carbonomonoxide concentration value should record less than downstream work plane correspondence position.
(embodiment 3)
On the basis of embodiment 1, present embodiment also has following distortion:
See Fig. 2, according to the relation of the distinguished and admirable formation upstream and downstream in the coal mine roadway, described " monitored data normally shows model " also comprises: the sum of products of the concentration value of measured methane or carbon monoxide and air mass flow equals the fixed proportion of the sum of products of the concentration value of methane measured in each tunnel, upstream (for example tunnel, upstream A1 and A2) or carbon monoxide and air mass flow in certain tunnel, downstream in colliery (for example tunnel, downstream A3).If do not satisfy this condition and reach Preset Time (such as 0.5-1.5 minute), just send warning.This fixed proportion is the air mass flow in the tunnel, described downstream and the ratio of the air mass flow sum in all tunnels, downstream.Owing to the air mass flow variation in each tunnel under the normal condition in the colliery is little, so can think in the implementation model that the flow in each tunnel is a fixed value.
For example, for tunnel, two downstreams is arranged, and have the colliery in tunnel, 3 upstreams, if the concentration value of the methane in tunnel, upstream 1 is 0.4%, air mass flow is 3 a cubes/per second; The concentration value of the methane in tunnel, upstream 2 is 0.5%, and air mass flow is 3 a cubes/per second; The concentration value of the methane in tunnel, upstream 3 is 0.6%, and air mass flow is 4 a cubes/per second; If the air mass flow in the tunnel, two downstreams is respectively 6 and 4 cubes/per second, then the concentration value of the methane in the tunnel, two downstreams should all be 0.51%.(above for not considering the situation that tunnel, downstream self methane normally appears, if in the tunnel, two downstreams self methane normally the amount of appearing be respectively 0.2 and 0.3 cube/per second, then the concentration value of the methane in the tunnel, two downstreams should be 0.543% and 0.585%).For the monitoring method of carbon monoxide, identical with methane.
(embodiment 4)
On the basis of embodiment 1 and 2, present embodiment also has following distortion: the gas that (driving) work plane of mining is gushed out changes with the coal seam speed of peeling off, the coal seam speed of peeling off is not uniformly in each circulation of great majority coal mining (driving) technology, changes so face gas content also is fluctuation.In the blasting process, the after gas content of at every turn blowing out can obviously raise, and gas bearing capacity can be lower before blowing out; Caving coal technology then can obviously raise at caving coal link gas bearing capacity; Even speed fully mechanized mining is relatively uniformly peeled off in the coal seam, coal-winning machine leaves and peels off speed with the stopping time coal seam and gas emission also has notable difference.
Described " monitored data normally shows model " also comprises: in 2-3 cycle, the amplitude of variation of the measured value of the methane of survey mark or the concentration of carbon monoxide has at least once in preset range, then is considered as normal; Otherwise be considered as unusual and warning.The time span in this single cycle is determined that by coal winning technology it is blown out greater than twice or coal-winning machine leaves or the interval of a large amount of coal breakage work steps of caving coal.
The maximum value of described preset range and minimum value are by the gas bearing capacity and used coal winning technology (generally being the coal amount of the peeling off) decision of institute's mining coal seam at every turn; Described maximum value and minimum value are set according to detected value after can detecting at the scene.The monitoring system main frame is constantly differentiated the measured value of the sensor of this work plane, if the measured value of firedamp sensor satisfies described " monitored data normally shows model ", then is considered as normal.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (3)
1. the monitoring method of a coal mine safety monitoring system, it is characterized in that comprising: analog measurement value and measurement place are set up contact, and set up the analog measurement value and measure place pairing " monitored data normally shows model ", whether the corresponding relation by analog measurement value and measurement place meets " monitored data normally shows model ", comes unusual circumstance and warning;
Described measurement place comprises: the upper corner of coal-face, work plane and return airway in the colliery, and the intake in the colliery, return aircourse, described analog measurement value is meant the measured value to methane or carbonomonoxide concentration, and described " monitored data normally shows model " comprising: should there be the relation that is arranged in order from big to small in methane that described upper corner, return airway and work plane three places are recorded or carbonomonoxide concentration value; Methane or carbonomonoxide concentration value that methane that intake records or carbonomonoxide concentration value record less than the return aircourse; For two work planes that adopt series ventilation, methane or carbonomonoxide concentration value that methane that early-stage work face records or carbonomonoxide concentration value record less than downstream work plane correspondence position; If do not satisfy in the above-mentioned relation and reach Preset Time, just send warning.
2. the monitoring method of a kind of coal mine safety monitoring system according to claim 1, it is characterized in that: described measurement place comprises the tunnel everywhere in the colliery, and described " monitored data normally shows model " comprising: the sum of products of the measured methane in the tunnel, a downstream in colliery or the concentration value of carbon monoxide and air mass flow equals the fixed proportion of the sum of products of the concentration value of the measured methane in each tunnel, upstream or carbon monoxide and air mass flow; If do not satisfy this condition and reach Preset Time, just send warning;
This fixed proportion is the air mass flow in the tunnel, described downstream and the ratio of the air mass flow sum in all tunnels, downstream.
3. the monitoring method of a kind of coal mine safety monitoring system according to claim 1 and 2, it is characterized in that: described measurement place comprises coal-face or driving face, described " monitored data normally shows model " comprising: in 2-3 cycle, the amplitude of variation of the measured value of the methane of survey mark or the concentration of carbon monoxide has at least once in preset range, then is considered as normal; Otherwise be considered as unusual and warning;
The time span in this cycle is blown out greater than twice or coal-winning machine leaves or the interval of a large amount of coal breakage work steps of caving coal.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2524860C1 (en) * | 2013-06-27 | 2014-08-10 | Федеральное государственное бюджетное учреждение науки ИНСТИТУТ ПРОБЛЕМ КОМПЛЕКСНОГО ОСВОЕНИЯ НЕДР РОССИЙСКОЙ АКАДЕМИИ НАУК (ИПКОН РАН) | Forecasting of explosive risks for methane-air mixes in mines |
| RU2731012C1 (en) * | 2019-06-20 | 2020-08-28 | Федеральное Государственное Бюджетное Учреждение Науки Институт Проблем Комплексного Освоения Недр Им. Академика Н.В. Мельникова Российской Академии Наук (Ипкон Ран) | Method of forecasting methane profusion of waste space |
| RU2813009C1 (en) * | 2022-09-26 | 2024-02-06 | Федеральное Государственное Бюджетное Учреждение Науки Институт Проблем Комплексного Освоения Недр Им. Академика Н.В. Мельникова Российской Академии Наук (Ипкон Ран) | Method for predicting methane abundance for excavation sites |
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| CN102155265B (en) * | 2011-03-29 | 2013-09-18 | 天地（常州）自动化股份有限公司 | Method for monitoring abnormal gas amount monitoring information in coal mine monitoring system |
| CN102155264B (en) * | 2011-03-29 | 2013-01-30 | 天地（常州）自动化股份有限公司 | Method for detecting abnormal gas quantity monitoring information in coal mine monitoring system |
| CN102155266B (en) * | 2011-03-29 | 2013-07-24 | 天地（常州）自动化股份有限公司 | Method for detecting abnormity of gas quantity monitoring information in coal mine monitoring system |
| CN102944664B (en) * | 2012-11-30 | 2016-01-20 | 天地（常州）自动化股份有限公司 | The method of test coal gas desorption properties |
| PL228634B1 (en) * | 2014-10-30 | 2018-04-30 | Inst Technik Innowacyjnych Emag | Method and the system for detecting and minimising methane hazard within the excavation longwall area |
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| CN106096633A (en) * | 2016-06-05 | 2016-11-09 | 丁旭秋 | coal mine gas concentration measuring method |
| CN111830208A (en) * | 2020-07-24 | 2020-10-27 | 精英数智科技股份有限公司 | Method and system for monitoring position state of methane sensor |
| CN113266409A (en) * | 2021-05-26 | 2021-08-17 | 中煤科工集团沈阳研究院有限公司 | Low-oxygen prevention and control method for mine working face |
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| CN101140456A (en) * | 2007-10-17 | 2008-03-12 | 王志杰 | Safety production monitoring early-warning system |
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| DE3100984A1 (en) * | 1981-01-15 | 1982-07-29 | Bergwerksverband Gmbh, 4300 Essen | Method of determining, monitoring and reducing the risk of rock burst |
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| CN101140456A (en) * | 2007-10-17 | 2008-03-12 | 王志杰 | Safety production monitoring early-warning system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2524860C1 (en) * | 2013-06-27 | 2014-08-10 | Федеральное государственное бюджетное учреждение науки ИНСТИТУТ ПРОБЛЕМ КОМПЛЕКСНОГО ОСВОЕНИЯ НЕДР РОССИЙСКОЙ АКАДЕМИИ НАУК (ИПКОН РАН) | Forecasting of explosive risks for methane-air mixes in mines |
| RU2731012C1 (en) * | 2019-06-20 | 2020-08-28 | Федеральное Государственное Бюджетное Учреждение Науки Институт Проблем Комплексного Освоения Недр Им. Академика Н.В. Мельникова Российской Академии Наук (Ипкон Ран) | Method of forecasting methane profusion of waste space |
| RU2813009C1 (en) * | 2022-09-26 | 2024-02-06 | Федеральное Государственное Бюджетное Учреждение Науки Институт Проблем Комплексного Освоения Недр Им. Академика Н.В. Мельникова Российской Академии Наук (Ипкон Ран) | Method for predicting methane abundance for excavation sites |
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