CN103410567A - Mine smoke sensor with self-checking function - Google Patents
Mine smoke sensor with self-checking function Download PDFInfo
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- CN103410567A CN103410567A CN201310378612XA CN201310378612A CN103410567A CN 103410567 A CN103410567 A CN 103410567A CN 201310378612X A CN201310378612X A CN 201310378612XA CN 201310378612 A CN201310378612 A CN 201310378612A CN 103410567 A CN103410567 A CN 103410567A
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- self
- smoke sensor
- checking function
- mine
- signal processing
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Abstract
The invention relates to a mine smoke sensor with a self-checking function. The mine smoke sensor with the self-checking function comprises a power supply unit, a smoke probe, a primary signal processing circuit, a secondary signal processing circuit and an output unit, wherein the smoke probe, the primary signal processing circuit, the secondary signal processing circuit and the output unit are connected sequentially. The mine smoke sensor with the self-checking function is characterized by further comprising a magnetic switch circuit which is connected with the primary signal processing circuit to achieve the self-checking function. The mine smoke sensor with the self-checking function is reasonable in design, the magnetic switch circuit is adopted to achieve the self-checking function, and quality of the mine smoke sensor can be detected without actual realistic simulation. In addition, the mine smoke sensor with the self-checking function can be used in mine environments full of flammable and combustible gases conveniently and safely, has the advantages of being simple, easy to operate and long in service life compared with a traditional mechanical self-checking circuit, and can be widely applied to underground smoke alarming fields.
Description
Technical field
The invention belongs to the smoke detection technical field, especially a kind of mine smoke sensor with self-checking function.
Background technology
For the coal dust under mine and damp detection, under mine, use widely mine smoke sensor to carry out Smoke Detection.Mine smoke sensor can be to the cable that mechanical friction under coal mine, electric fixtures cause the smog that causes of the reason such as on fire and spontaneous combustion of coal seam detect and send alarm signal.In actual use, because mine smoke sensor is worked for a long time under rugged environment, often need to the performance of mine smoke sensor be detected, preventing that mine smoke sensor from breaking down affects the normal operation of smoke detection system.
At present, mine smoke sensor being carried out to the method for Performance Detection carries out with the smog that produces simulation usually, but under the actual environment under mine, it is breakneck that the form of employing simulation smoke detects, and be unpractical, if mine smoke sensor is taken off and takes aboveground the detection, make troubles for the inspection and maintenance of mine smoke sensor, simultaneously, aboveground simulated environment can not be reproduced the complex environment of down-hole fully, is difficult to reach the purpose of detection.In addition, existing mine smoke sensor adopts the mechanical type self-checking circuit to realize self-checking function usually, the problems such as mechanical type self-checking circuit average life is short, complicated operation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of reasonable in design, mine smoke sensor with self-checking function that accuracy is high, easy to use is provided.
The present invention solves existing technical problem and takes following technical scheme to realize:
A kind of mine smoke sensor with self-checking function, comprise power supply unit, smog probe, signal processing circuit, secondary singal treatment circuit and an output unit, smog probe, signal processing circuit, a secondary singal treatment circuit are connected successively with output unit, also comprise the magnetic switch circuit, this magnetic switch circuit is connected and realizes self detection control function with a signal processing circuit.
And described magnetic switch circuit adopts reed switch circuit.
And described output unit adopts alarm lamp or loudspeaker.
Advantage of the present invention and good effect are:
The present invention adopts the magnetic switch circuit to realize self-checking function, in the situation that do not produce realistic simulation smog, just can detect the quality of mine smoke sensor, for the Minepit environment that is full of flammable explosive gas not only easy but also safety, with respect to the mechanical self-checking circuit of tradition, have advantages of easy, easy to operate and the life-span is long, can be widely used in the smog alarm field under mine.
The accompanying drawing explanation
Fig. 1 is the circuit block diagram of invention.
The specific embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described.
A kind of mine smoke sensor with self-checking function, as shown in Figure 1, comprise power supply unit, smog probe, signal processing circuit, secondary singal treatment circuit, magnetic switch circuit and an output unit, smog probe, signal processing circuit, a secondary singal treatment circuit are connected successively with output unit, and the magnetic switch circuit is connected and realizes self detection control function with a signal processing circuit.In the present embodiment, the magnetic switch circuit adopts reed switch circuit, and output unit adopts alarm lamp or loudspeaker.In normal use procedure, when the smog probe receives certain density smog, the smog probe will output signal to a signal processing circuit and process, after one time signal circuit is processed, output to the secondary singal treatment circuit and be further processed, finally by output unit, export corresponding alarm signal.The self-checking function of mine smoke sensor is to control a signal processing circuit by the magnetic switch circuit, secondary singal treatment circuit and output unit are realized, in order to realize self-checking function, use magnetisable material (for example magnet) near tongue tube, two contact adhesive conductings of tongue tube, signal processing circuit of output control signal control and secondary singal treatment circuit are processed signal, finally by output unit, export relevant alarm signal, thereby judge signal processing circuit one time, whether secondary singal treatment circuit and output unit work is normal, realized the self-checking function of mine smoke sensor.
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention includes and be not limited to the embodiment described in the specific embodiment; every other embodiments that drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (3)
1. mine smoke sensor with self-checking function, comprise power supply unit, smog probe, signal processing circuit, secondary singal treatment circuit and an output unit, smog probe, signal processing circuit, a secondary singal treatment circuit are connected successively with output unit, it is characterized in that: also comprise the magnetic switch circuit, this magnetic switch circuit is connected and realizes self detection control function with a signal processing circuit.
2. a kind of mine smoke sensor with self-checking function according to claim 1, is characterized in that: described magnetic switch circuit employing reed switch circuit.
3. a kind of mine smoke sensor with self-checking function according to claim 1 and 2, is characterized in that: described output unit employing alarm lamp or loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378612XA CN103410567A (en) | 2013-08-27 | 2013-08-27 | Mine smoke sensor with self-checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310378612XA CN103410567A (en) | 2013-08-27 | 2013-08-27 | Mine smoke sensor with self-checking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103410567A true CN103410567A (en) | 2013-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310378612XA Pending CN103410567A (en) | 2013-08-27 | 2013-08-27 | Mine smoke sensor with self-checking function |
Country Status (1)
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| CN (1) | CN103410567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895565A (en) * | 2015-06-25 | 2015-09-09 | 中国矿业大学(北京) | Remote control system for electromagnetic speed-regulating coal mining machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495495A (en) * | 1981-01-20 | 1985-01-22 | Ruhrkohle Aktiengesellschaft | Staff-location and signalling system for use in mines |
| CN2074497U (en) * | 1989-03-23 | 1991-04-03 | 鸡西市无线电四厂 | Permanent-magnet limit switch |
| CN201159631Y (en) * | 2008-03-07 | 2008-12-03 | 哈尔滨工业大学深圳研究生院 | Detection apparatus for hydraulic support linear displacement transducer |
| CN201258760Y (en) * | 2008-09-25 | 2009-06-17 | 贾柏青 | Smoke sensor |
| CN201837576U (en) * | 2010-10-25 | 2011-05-18 | 淮南润成科技有限公司 | Mine smoke sensor |
| CN202216702U (en) * | 2011-09-21 | 2012-05-09 | 东莞市欧玛特电子科技有限公司 | Novel sensor |
-
2013
- 2013-08-27 CN CN201310378612XA patent/CN103410567A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495495A (en) * | 1981-01-20 | 1985-01-22 | Ruhrkohle Aktiengesellschaft | Staff-location and signalling system for use in mines |
| CN2074497U (en) * | 1989-03-23 | 1991-04-03 | 鸡西市无线电四厂 | Permanent-magnet limit switch |
| CN201159631Y (en) * | 2008-03-07 | 2008-12-03 | 哈尔滨工业大学深圳研究生院 | Detection apparatus for hydraulic support linear displacement transducer |
| CN201258760Y (en) * | 2008-09-25 | 2009-06-17 | 贾柏青 | Smoke sensor |
| CN201837576U (en) * | 2010-10-25 | 2011-05-18 | 淮南润成科技有限公司 | Mine smoke sensor |
| CN202216702U (en) * | 2011-09-21 | 2012-05-09 | 东莞市欧玛特电子科技有限公司 | Novel sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895565A (en) * | 2015-06-25 | 2015-09-09 | 中国矿业大学(北京) | Remote control system for electromagnetic speed-regulating coal mining machine |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131127 |