CN107356636A - A kind of Coal mine methane concentration intelligent detector - Google Patents
A kind of Coal mine methane concentration intelligent detector Download PDFInfo
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- CN107356636A CN107356636A CN201710627894.0A CN201710627894A CN107356636A CN 107356636 A CN107356636 A CN 107356636A CN 201710627894 A CN201710627894 A CN 201710627894A CN 107356636 A CN107356636 A CN 107356636A
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- methane
- methane concentration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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Abstract
The present invention discloses a kind of Coal mine methane concentration intelligent detector, including methane induction element, small signal amplification circuit, analog to digital conversion circuit, programmable watchdog circuit, central processing unit, Zigbee communication module, electronic tag, clock chip, audible-visual annunciator, touch display screen, key group and power module.Advantage of the present invention is as follows：First, the orderly use of detector is managed by electronic label intelligent, accomplishes that user of service's information has good grounds；2nd, external communication is realized by Zigbee communicating circuits, communication distance is remote, and data transfer is stable；3rd, methane induction element susceptibility is high, can accurately measure the methane concentration in mine, and the timely sound and light alarm when concentration transfinites in real time, reminds staff to withdraw；4th, it can select to touch or key mode carries out parameter setting to detector, it is flexibly easy-to-use.
Description
Technical field
The present invention relates to methane concentration detection technique field, more particularly to a kind of Coal mine methane concentration intelligent detector.
Background technology
Coal production is underground job, and natural conditions and working condition are all complicated, and the gas occurred in mining process gushes
Go out, coal dust is flown upward, spontaneous fire etc. is likely to cause major accident.In order to prevent accident, ensure miner health and
Safety, promote production development, improve the economic benefit of coal enterprise, the meteorology of underground should be detected, to calamity may be caused
Various the evil gases having and mine dust of evil accident accurately detect and strictly control in time, once catastrophe occurs, it is necessary to
Wrecked personnel and process accident are given first aid in time.At present, the safety production situation of coal industry but allows of no optimist, middle and small scale coal mine
Situation is particularly acute, and is directly threatened the steady production of whole coal industry, is caused to national wealth and people's life
Very big loss, methane explosion accident are even more first of incidence of major accident, by forced mathane management, improve ventilation, methane
Detect monitoring level, it has also become one of most urgent task of middle and small scale coal mine CH_4 detection monitoring.But without a kind of real
It is suitable for the safe coal monitoring product that middle and small scale coal mine uses, and existing safe coal monitoring product is mostly that foreign countries enter
Mouthful, price is high, and operating cost is big, and sensor measurement stability is poor, and adjustment is frequent, short life, and installation, maintenance are complicated, and operation is not
Just, man-machine interface is poor, it is necessary to relies on the maintenance troop of specialty, there is higher requirement to personnel's technical quality.
The content of the invention
It is an object of the invention to by a kind of Coal mine methane concentration intelligent detector, to solve background section above
The problem of mentioning.
To use following technical scheme up to this purpose, the present invention：
A kind of Coal mine methane concentration intelligent detector, it includes methane induction element, small signal amplification circuit, analog-to-digital conversion
Circuit, programmable watchdog circuit, central processing unit, Zigbee communication module, electronic tag, clock chip, audible-visual annunciator,
Touch display screen, key group and power module；The methane induction element connects central processing by small signal amplification circuit
Device；The central processing unit and programmable watchdog circuit, Zigbee communication module, electronic tag, clock chip, sound and light alarm
Device, touch display screen, key group connection；The power module is connected with central processing unit；Methane induction element output with
The corresponding voltage signal of methane concentration, analog to digital conversion circuit, analog-to-digital conversion electricity are sent to after small signal amplification circuit amplifies
Road converts analog signals into data signal and is sent into central processing unit, and central processing unit carries out numerical computations, processing to sampled value
Afterwards, driving touch display screen shows the methane concentration value in tested gas, if methane concentration exceedes alarm number in tested gas
During value, audible-visual annunciator sends sound, visual alarm；Clock chip produces real-time time, and by numeral method hour and
Point；The Zigbee communication module is communicated with external equipment APP, and methane concentration is exported in real time and gives external equipment APP.
Especially, the methane induction element is made up of operation element and compensating element, operation element and compensating element, point
It is not connected on Wheatstone bridge, when the power end of operation element and compensating element, adds high level, element is started working, and works as ring
When in border without methane gas, it is zero that adjustment Wheatstone bridge, which is allowed to output, and when there is methane gas, methane gas is with diffusion way
Into the former measurement air chamber of instrument, inside is connected to the heat catalytic element of Wheatstone bridge bridge arm or oxidation-reduction occurs for heat conducting element
Reaction, heat catalytic element or the rise of heat conducting element temperature, export the voltage signal corresponding with methane concentration to low level signal amplification
Circuit.
Especially, the low bias voltage 50 μ V of maximum of the small signal amplification circuit, low excursion with temperature 0.5 μ V/ DEG C of maximum,
Low input bias current maximum 5nA, high common mode resist CMR minimum 120DB, input and protect extremely ± 40V, and wide power voltage scope ±
2.25 to ± 18V, the μ A of low quiescent current 700.
Especially, the electronic tag is two-dimension code label, user using when need to scan the 2 D code information, addition makes
With the person related information of Coal mine methane concentration intelligent detector.
Especially, the person related information includes name, unit, liaison circuit, usage time.
Coal mine methane concentration intelligent detector advantage proposed by the present invention is as follows：First, examined by electronic label intelligent management
The orderly use of device is surveyed, accomplishes that user of service's information has good grounds；2nd, external communication is realized by Zigbee communicating circuits, led to
News distance is remote, and data transfer is stable；3rd, methane induction element susceptibility is high, and the methane that can accurately measure in mine in real time is dense
Degree, and the timely sound and light alarm when concentration transfinites, staff is reminded to withdraw；4th, it can select to touch or key mode is to inspection
Survey device and carry out parameter setting, it is flexibly easy-to-use.
Brief description of the drawings
Fig. 1 is Coal mine methane concentration intelligent detector structural representation provided in an embodiment of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.It is understood that tool described herein
Body embodiment is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that for the ease of retouching
State, part related to the present invention rather than full content are illustrate only in accompanying drawing, it is unless otherwise defined, used herein all
Technology and scientific terminology are identical with belonging to the implication that the those skilled in the art of the present invention are generally understood that.It is used herein
Term be intended merely to describe specific embodiment, it is not intended that in limitation the present invention.
It refer to shown in Fig. 1, Fig. 1 is Coal mine methane concentration intelligent detector structural representation provided in an embodiment of the present invention
Figure.
In the present embodiment Coal mine methane concentration intelligent detector specifically include methane induction element, small signal amplification circuit,
Analog to digital conversion circuit, programmable watchdog circuit, central processing unit, Zigbee communication module, electronic tag, clock chip, sound
Light crossing-signal, touch display screen, key group and power module；The methane induction element is connected by small signal amplification circuit
Central processing unit；The central processing unit and programmable watchdog circuit, Zigbee communication module, electronic tag, clock chip,
Audible-visual annunciator, touch display screen, key group connection；The power module is connected with central processing unit；The methane perceives member
Part exports the voltage signal corresponding with methane concentration, and analog to digital conversion circuit, mould are sent to after small signal amplification circuit amplifies
Number change-over circuit converts analog signals into data signal and is sent into central processing unit, and central processing unit carries out numerical value meter to sampled value
Calculate, after processing, driving touch display screen shows the methane concentration value in tested gas, if methane concentration exceedes in tested gas
During alarm numerical value, audible-visual annunciator sends sound, visual alarm；Clock chip produces real-time time, and passes through numeral method
Hour and point；The Zigbee communication module is communicated with external equipment APP, and methane concentration is exported in real time and gives external equipment APP.
The methane induction element is made up of operation element and compensating element, in the present embodiment, operation element and compensation member
Part is connected on Wheatstone bridge respectively, and when the power end of operation element and compensating element, adds high level, element is started working,
When in environment without methane gas, to be allowed to output be zero to adjustment Wheatstone bridge, and when there is methane gas, methane gas is to spread
Mode enters the former measurement air chamber of instrument, inside is connected to the heat catalytic element of Wheatstone bridge bridge arm or heat conducting element occur oxidation-
Reduction reaction, heat catalytic element or the rise of heat conducting element temperature, export the voltage signal corresponding with methane concentration to small-signal
Amplifying circuit.The low bias voltage 50 μ V of maximum of the small signal amplification circuit in the present embodiment, low excursion with temperature maximum 0.5
μ V/ DEG C, low input bias current maximum 5nA, high common mode resist CMR minimum 120DB, input protection to ± 40V, wide power voltage
Scope ± 2.25 are to ± 18V, the μ A of low quiescent current 700.The electronic tag is two-dimension code label, user using when need to scan
The 2 D code information, addition use the person related information of Coal mine methane concentration intelligent detector.Person related information's bag
Include name, unit, liaison circuit, usage time.
Technical scheme advantage is as follows：First, the orderly use of detector is managed by electronic label intelligent, is accomplished
User of service's information has good grounds；2nd, external communication is realized by Zigbee communicating circuits, communication distance is remote, and data transfer is steady
It is fixed；3rd, methane induction element susceptibility is high, can accurately measure the methane concentration in mine in real time, and when concentration transfinites and
When sound and light alarm, remind staff withdraw；4th, it can select to touch or key mode carries out parameter setting, spirit to detector
Work is easy-to-use.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Claims (5)
- A kind of 1. Coal mine methane concentration intelligent detector, it is characterised in that including methane induction element, small signal amplification circuit, Analog to digital conversion circuit, programmable watchdog circuit, central processing unit, Zigbee communication module, electronic tag, clock chip, sound Light crossing-signal, touch display screen, key group and power module；The methane induction element is connected by small signal amplification circuit Central processing unit；The central processing unit and programmable watchdog circuit, Zigbee communication module, electronic tag, clock chip, Audible-visual annunciator, touch display screen, key group connection；The power module is connected with central processing unit；The methane perceives member Part exports the voltage signal corresponding with methane concentration, and analog to digital conversion circuit, mould are sent to after small signal amplification circuit amplifies Number change-over circuit converts analog signals into data signal and is sent into central processing unit, and central processing unit carries out numerical value meter to sampled value Calculate, after processing, driving touch display screen shows the methane concentration value in tested gas, if methane concentration exceedes in tested gas During alarm numerical value, audible-visual annunciator sends sound, visual alarm；Clock chip produces real-time time, and passes through numeral method Hour and point；The Zigbee communication module is communicated with external equipment APP, and methane concentration is exported in real time and gives external equipment APP.
- 2. Coal mine methane concentration intelligent detector according to claim 1, it is characterised in that the methane induction element by Operation element and compensating element, composition, operation element and compensating element, are connected on Wheatstone bridge respectively, in operation element and benefit Element is started working when repaying the power end addition high level of element, and when in environment without methane gas, adjustment Wheatstone bridge makes Output be zero, when there is methane gas, methane gas enters the former measurement air chamber of instrument with diffusion way, and inside is connected to wheatstone Oxidation-reduction reaction, heat catalytic element or heat conducting element temperature liter occur for the heat catalytic element or heat conducting element of electric bridge bridge arm Height, the voltage signal corresponding with methane concentration is exported to small signal amplification circuit.
- 3. Coal mine methane concentration intelligent detector according to claim 1, it is characterised in that the small signal amplification circuit Low bias voltage 50 μ V of maximum, μ V/ DEG C, the low input bias current maximum 5nA of low excursion with temperature maximum 0.5, high common mode resists CMR minimum 120DB, input protection to ± 40V, wide power voltage scope ± 2.25 to ± 18V, the μ A of low quiescent current 700.
- 4. the Coal mine methane concentration intelligent detector according to one of claims 1 to 3, it is characterised in that the electronics mark Sign as two-dimension code label, user using when need to scan the 2 D code information, addition uses Coal mine methane concentration intelligent detector Person related information.
- 5. Coal mine methane concentration intelligent detector according to claim 4, it is characterised in that person related information's bag Include name, unit, liaison circuit, usage time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627894.0A CN107356636A (en) | 2017-07-28 | 2017-07-28 | A kind of Coal mine methane concentration intelligent detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627894.0A CN107356636A (en) | 2017-07-28 | 2017-07-28 | A kind of Coal mine methane concentration intelligent detector |
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| CN107356636A true CN107356636A (en) | 2017-11-17 |
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| CN201710627894.0A Withdrawn CN107356636A (en) | 2017-07-28 | 2017-07-28 | A kind of Coal mine methane concentration intelligent detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160982A (en) * | 2018-03-29 | 2019-08-23 | 浙江中越检测技术服务有限公司 | A kind of chemical gases methane concentration detection system |
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| CN201754636U (en) * | 2010-03-12 | 2011-03-02 | 常熟市智胜信息技术有限公司 | Mining lamp |
| CN203164151U (en) * | 2013-04-24 | 2013-08-28 | 山东三大博安测控技术有限公司 | Methane sensor |
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| CN105354519A (en) * | 2015-10-23 | 2016-02-24 | 福建优安米信息科技有限公司 | Data information processing system and processing method therefor |
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| CN105530022A (en) * | 2015-12-03 | 2016-04-27 | 国网北京市电力公司 | Data transmission method based on safety tool and safety tool |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201754636U (en) * | 2010-03-12 | 2011-03-02 | 常熟市智胜信息技术有限公司 | Mining lamp |
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| CN204361202U (en) * | 2014-12-24 | 2015-05-27 | 陕西斯达煤矿安全装备有限公司 | A kind of intrinsic safe battery assembly for Portable Methane Detection Alarm |
| CN105354519A (en) * | 2015-10-23 | 2016-02-24 | 福建优安米信息科技有限公司 | Data information processing system and processing method therefor |
| CN105466975A (en) * | 2015-11-13 | 2016-04-06 | 北京瑞赛长城航空测控技术有限公司 | Method for methane measurement by using periodical power supply mode to drive carrier catalytic component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160982A (en) * | 2018-03-29 | 2019-08-23 | 浙江中越检测技术服务有限公司 | A kind of chemical gases methane concentration detection system |
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Application publication date: 20171117 |