CN105259329B - Coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method - Google Patents
Coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method Download PDFInfo
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- CN105259329B CN105259329B CN201510676240.8A CN201510676240A CN105259329B CN 105259329 B CN105259329 B CN 105259329B CN 201510676240 A CN201510676240 A CN 201510676240A CN 105259329 B CN105259329 B CN 105259329B
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Abstract
The coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method that the present invention is provided, including a. control gas sensor export the characteristic frequency under various adjustment states；B. real time parsing is carried out to characteristic frequency, and adjustment state is identified；C. sensor operations are judged according to the adjustment state of identification, and counts calibration procedures and time；The coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method that the present invention is provided can avoid the frequency range that sensor is normally exported, adjustment is carried out to sensor using characteristic frequency, sensor is not influenceed normally to export, by real time parsing characteristic frequency, the ONLINE RECOGNITION to adjustment state is realized.
Description
Technical field
The present invention relates to field of coal mine safety, more particularly to a kind of coal mine safety monitoring system firedamp sensor adjustment are online
Recognition methods.
Background technology
Colliery is a kind of very important energy, is generally divided into underground mine and open coal mine, China's overwhelming majority colliery
Belong to underground mine.In the past few years, with China's coal-mine industrial expansion, also bring and much ask while economic growth is improved
Topic, wherein safety problem obtain people and more and more widely paid close attention to.The safety problem in colliery is all the most important thing all the time,
Firedamp sensor is a kind of round-the-clock continual sensor being monitored to fire damp concentration, using acousto-optic
Warning system, once gas is exceeded, system reminds workman's emergency escape just in underground work immediately, it is to avoid casualties, right
Downhole safety has very important effect.But existing frequency output type sensor does not support adjustment ONLINE RECOGNITION, operation is not
It is enough flexible, it is inconvenient for use.
The content of the invention
In view of this, the present invention provides a kind of coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method, with
Solve the ONLINE RECOGNITION of firedamp sensor instruction.
The coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method that the present invention is provided, including
A kind of coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method, it is characterised in that：Including
A. control gas sensor exports the characteristic frequency under various adjustment states；
B. real time parsing is carried out to characteristic frequency, and adjustment state is identified；
C. sensor operations are judged according to the adjustment state of identification, and counts calibration procedures and time.
Further, the step a includes
A1. when firedamp sensor enters zeroing state, output characteristic frequency；
A2. when gas be inflated adjustment it is linear when, output characteristic frequency；
A3. when gas terminates adjustment, output characteristic frequency.
Further, also include after step c
D. monitoring system is analyzed adjustment state and abnormal information is counted.
Further, the characteristic frequency exported in the step a1 and a2 is different from the characteristic frequency exported in a3.
Further, also include receiving after characteristic frequency in step b, be that channel data sets adjustment mark.
Further, it is that channel data removes adjustment mark after substation receives the characteristic frequency exported in step a3.
Further, receive described in step a1 after characteristic frequency, it is automatic after the default time to remove adjustment mark.
Further, the firedamp sensor in the step a continues output characteristic frequency within the default time.
Beneficial effects of the present invention：The coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION side that the present invention is provided
Method is united by the characteristic frequency sent under the different adjustment states of firedamp sensor to the calibration procedures of firedamp sensor
Meter, realizes the ONLINE RECOGNITION for looking after and guiding firedamp sensor state, the frequency that characteristic frequency selection is not exported normally in sensor
Scope, improves antijamming capability, does not influence sensor normally to export, and by real time parsing characteristic frequency, realizes and exchanges
The ONLINE RECOGNITION of school state.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the principle schematic of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：Fig. 1 is the principle schematic of the present invention.
As shown in figure 1, the coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method in the present embodiment, it is special
Levy and be：Including
A. control gas sensor exports the characteristic frequency under various adjustment states；
B. real time parsing is carried out to characteristic frequency, and adjustment state is identified；
C. sensor operations are judged according to the adjustment state of identification, and counts calibration procedures and time.
D. monitoring system is analyzed adjustment state and abnormal information is counted.
In this example when operating personnel's remote controller carries out adjustment to firedamp sensor, firedamp sensor can export spy
Frequency is levied, is channel sampled data mark adjustment mark after substation receives characteristic frequency, substation record receives characteristic frequency
Time, and to sampling value of the value changes more than 0.5% record, record include sampled value and time.Work as firedamp sensor
When exiting remote control, another feature frequency is exported, substation understands adjustment mark after this feature frequency is received for channel data.Feature
Frequency selects the frequency range different from normal working frequency, can avoid the influence to the normal output of sensor.
In the present embodiment, the step a includes
A1. when firedamp sensor enters zeroing state, output characteristic frequency；
A2. when gas be inflated adjustment it is linear when, output characteristic frequency；
A3. when gas terminates adjustment, output characteristic frequency.
In the present embodiment, it is that channel data removes adjustment after substation receives the characteristic frequency exported in step a3
The characteristic frequency exported in mark, step a1 and a2 uses 160Hz, the characteristic frequency exported in step a3 uses 180Hz, when
Substation receives 180Hz characteristic frequency, is that channel data understands adjustment mark.
In the present embodiment, receive described in step a1 after characteristic frequency, automatic remove is adjusted after the default time
School indicates.In the present embodiment, receiving after 160Hz characteristic frequencies start accumulative 10 minutes, it is automatic to remove adjustment mark, and ask
Central station uploads adjustment data.
In the present embodiment, the firedamp sensor in the step a continues output characteristic frequency within the default time, this
In embodiment, 160Hz characteristic frequencies are persistently exported 5 seconds in step a1 and a2,180Hz feature frequency is persistently exported in step a3
Rate 5 seconds.Substation by identification feature frequency, and according to the time of receiving judge firedamp sensor export be characteristic frequency, and
It is not due to disturb caused frequency change, the result of identification is transferred to Surveillance center by substation after characteristic frequency is recognized
Central station, the change of flag states that central station can be transmitted according to substation, the operation to firedamp sensor judges, and energy
Count the process of adjustment and the time of adjustment.In this embodiment, substation record receives the characteristic frequency time, and to sampling value changes
Value more than 0.5% is recorded, and it is 7 bytes that record, which includes sampled value and the byte number of time data,.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (6)
1. a kind of coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method, it is characterised in that：Including
A. control gas sensor exports the characteristic frequency under various adjustment states；
B. receive after characteristic frequency, be that channel data sets adjustment mark, record receives the time of characteristic frequency, and to sampling
Sampled value of the value changes more than 0.5% and time are recorded, and to carry out real time parsing to characteristic frequency, and adjustment state are entered
Row identification；
C. sensor operations are judged according to the adjustment state of identification, and counts calibration procedures and time；
Firedamp sensor in the step a continued output characteristic frequency in 5 seconds.
2. coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method according to claim 1, its feature exists
In：The step a includes
A1. when firedamp sensor enters zeroing state, output characteristic frequency；
A2. when gas be inflated adjustment it is linear when, output characteristic frequency；
A3. when gas terminates adjustment, output characteristic frequency.
3. coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method according to claim 2, its feature exists
In：Also include after step c
D. monitoring system is analyzed adjustment state and abnormal information is counted.
4. coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method according to claim 2, its feature exists
In：The characteristic frequency exported in the step a1 and a2 is different from the characteristic frequency exported in a3.
5. coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method according to claim 4, its feature exists
In：It is that channel data removes adjustment mark after substation receives the characteristic frequency exported in step a3.
6. coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method according to claim 5, its feature exists
In：Receive described in step a1 after characteristic frequency, it is automatic after the default time to remove adjustment mark.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510676240.8A CN105259329B (en) | 2015-10-13 | 2015-10-13 | Coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method |
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| CN201510676240.8A CN105259329B (en) | 2015-10-13 | 2015-10-13 | Coal mine safety monitoring system firedamp sensor adjustment ONLINE RECOGNITION method |
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| CN105259329A CN105259329A (en) | 2016-01-20 |
| CN105259329B true CN105259329B (en) | 2017-09-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105653879B (en) * | 2016-02-03 | 2018-03-30 | 中煤科工集团重庆研究院有限公司 | Coal mine downhole safety monitoring data synthesis filter method for de-noising |
| CN110646581A (en) * | 2019-06-24 | 2020-01-03 | 中煤科工集团重庆研究院有限公司 | Method for identifying adjustment effectiveness of gas sensor of coal mine safety monitoring system |
| CN111855897A (en) * | 2020-08-26 | 2020-10-30 | 精英数智科技股份有限公司 | Method, system, equipment and medium for identifying adjustment and calibration states of underground sensor |
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| US20100132431A1 (en) * | 2008-12-02 | 2010-06-03 | Norberto Hernandez | Method for testing and calibrating a capacitive flex fuel sensor |
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| US5092217A (en) * | 1987-07-08 | 1992-03-03 | Thermedics Inc. | Method of calibrating a vapor detector |
| CN2733315Y (en) * | 2004-09-22 | 2005-10-12 | 陈淮新 | Coal mine safety monitor sensor calibration apparatus |
| CN101256141A (en) * | 2008-03-21 | 2008-09-03 | 天地（常州）自动化股份有限公司 | Method for on-line regulating-correcting firedamp sensor for mining safety monitoring system |
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