CN102182514A - Mining alarm - Google Patents
Mining alarm Download PDFInfo
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- CN102182514A CN102182514A CN2011100827063A CN201110082706A CN102182514A CN 102182514 A CN102182514 A CN 102182514A CN 2011100827063 A CN2011100827063 A CN 2011100827063A CN 201110082706 A CN201110082706 A CN 201110082706A CN 102182514 A CN102182514 A CN 102182514A
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Abstract
The invention discloses a mining alarm. The mining alarm comprises a direct-current control circuit, an alternating-current control circuit, a singlechip, a function selection switch, an intrinsic safety power supply and a power supply, wherein the direct-current control circuit sends a direct-current trigger signal to the singlechip; the alternating-current control circuit sends an alternating-current trigger signal to the singlechip; the singlechip controls an audible and visual alarm circuit to perform audible and visual alarm according to the direct-current trigger signal or the alternating-current trigger signal; a plurality of different voice alarm contents are preset in the audible and visual alarm circuit; the function selection switch is used for providing a function of selecting one of the plurality of different voice alarm contents; the intrinsic safety power supply is used for converting 36-volt or 127-volt alternating-current power into 12-volt direct-current power; and the power supply is used for converting the 12-volt direct-current power into 5-volt direct-current power and supplying the power to the singlechip and the audible and visual alarm circuit. Therefore, by the mining alarm two alarm modes of voice and light can be realized; the voice alarm contents can be selected; and the mining alarm has various functions.
Description
Technical field
The present invention relates to a kind of warning device, relate in particular to a kind of mining alarm.
Background technology
Mining alarm is a kind of mining security protection equipment, often is installed on the mine car front portion, is used for having under the coal mine occasions such as each track step, air door, inclined shaft winch and upper and lower parking lot of gas and coal dust explosion hazard.When mine car when track is passed by each step of coal mine lower railway slope, bend or upper and lower parking lot, the mine car human pilot powers on for mining alarm, mining alarm will send alarm signal and remind near staff to avoid mine car, take care, treat mine car pass by above-mentioned place after the mine car driver again with its outage, mining alarm stops to report to the police.Yet known mining detectors is single at present.
Summary of the invention
The object of the present invention is to provide a kind of mining alarm of diverse in function.
For achieving the above object, the invention provides a kind of mining alarm, comprising:
DC control circuit is used for sending dc trigger signal to single-chip microcomputer;
AC control circuit is used for sending the interchange triggering signal to described single-chip microcomputer;
Single-chip microcomputer is used for carrying out sound and light alarm according to described dc trigger signal or described interchange triggering signal guide sound optical alarm circuit, wherein, preestablishes several different audio alert contents in the described sound light alarming circuit;
Functional select switch is used for providing the function of selecting one audio alert content from described several different audio alert contents;
Intrinsic safety electric source is used for 36V or 127V alternating current are transformed into the 12V direct current;
Power supply is used for described 12V direct current is transformed into 5V to described single-chip microcomputer and the power supply of described sound light alarming circuit.
Mining alarm of the present invention, described single-chip microcomputer is that PIC single-chip microcomputer and the peripheral circuit thereof of PIC16F628A constitutes by model, described sound light alarming circuit comprises voice alarm circuit and optical alarm circuit, described voice alarm circuit is that the speech chip of ISD1720 and power amplifier thereof and loudspeaker constitute by model, described optical alarm circuit is by led drive circuit, LED display circuit with several dual-colored LED lamps constitutes, wherein, the 4th of described speech chip, 5,6,7 pins correspondence and the 18th of described PIC single-chip microcomputer, 17,16,15 pins link to each other, described functional select switch is a 4-bit DIP switch, the the 1st to the 4th selecting side correspondence and the 8th of the described PIC single-chip microcomputer of described 4-bit DIP switch, 7,6,3 pins link to each other, the the 5th to the 8th selecting side ground connection of described 4-bit DIP switch, the 10th of the input of described led drive circuit and described PIC single-chip microcomputer, 11 pins link to each other.
Mining alarm of the present invention, described intrinsic safety electric source comprises first wiring terminal, double-point double-throw switch, transformer and voltage-stabilized power supply, wherein, the A of described first wiring terminal links to each other with the upper end on the former limit of described transformer, the B of described first wiring terminal overcurrent fuse that communicates links to each other with No. 1 common port of described double-point double-throw switch, No. 2 selecting sides of described double-point double-throw switch link to each other with the centre tap on the former limit of described transformer, No. 3 selecting sides of described double-point double-throw switch link to each other with the lower end on the former limit of described transformer, the secondary of described transformer links to each other with the input of described voltage-stabilized power supply, described voltage-stabilized power supply comprises current rectifying and wave filtering circuit and reference voltage-stabilizing circuit, described current rectifying and wave filtering circuit is by four diode D701, D701, D701, D701 and capacitor C 701 and C702 constitute, and described reference voltage-stabilizing circuit is mainly by voltage-stabiliser tube, comparator constitutes.
Mining alarm of the present invention, the input of described power supply links to each other with the output of described reference voltage-stabilizing circuit, described power supply comprises filter circuit and secondary mu balanced circuit, described filter circuit is made of capacitor C 1, C2, C3 and inductance L 1, described secondary mu balanced circuit is that 7805 voltage-stabiliser tube and peripheral circuit thereof constitute by model, the output of described filter circuit links to each other with the input of described secondary mu balanced circuit, described secondary mu balanced circuit output 5V direct current.
Mining alarm of the present invention, described AC control circuit comprises diode D1, D2, D3, D4, resistance R 50, R51, R52, R53, capacitor C 50 and model are first optocoupler of PC357, wherein, the output of the input of diode D1 and diode D3 links to each other with the A of described first wiring terminal, the output of the input of diode D2 and diode D4 links to each other with the C of described first wiring terminal, the output of the output of diode D1 and diode D2 links to each other with an end of resistance R 50, the input of the input of diode D3 and diode D4 links to each other with the 2nd pin of first optocoupler, the other end of resistance R 50 respectively with No. 5 selecting sides of double-point double-throw switch, one end of resistance R 51 links to each other, the other end of resistance R 51 respectively with No. 6 selecting sides of double-point double-throw switch, one end of resistance R 52 links to each other, the other end of resistance R 52 links to each other with the 2nd pin of first optocoupler, No. 4 common ports of double-point double-throw switch respectively with an end of resistance R 53, the positive pole of capacitor C 50 links to each other, the other end of resistance R 53 links to each other with the 1st pin of first optocoupler, the negative pole of capacitor C 50 links to each other with the 2nd pin of first optocoupler, the 3rd pin ground connection of first optocoupler, the 4th pin of first optocoupler links to each other with described PIC single-chip microcomputer the 4th pin.
Mining alarm of the present invention, described DC control circuit comprises that two models are second optocoupler and the 3rd wiring terminal of PC357, the 1st pin of each second optocoupler links to each other with the output of described reference voltage-stabilizing circuit by the resistance of a 4.7K Ω respectively, the 2nd pin correspondence of each second optocoupler links to each other with K1, the K2 of the 3rd wiring terminal end, the 3rd pin ground connection of each second optocoupler, the 4th pin correspondence of each second optocoupler links to each other with described PIC single-chip microcomputer the 9th, 13 pins.
Mining alarm of the present invention comprises the DC control circuit that is used for sending to single-chip microcomputer dc trigger signal; Be used for sending the AC control circuit that exchanges triggering signal to single-chip microcomputer; Be used for carrying out the single-chip microcomputer of sound and light alarm according to dc trigger signal or described interchange triggering signal guide sound optical alarm circuit; Be used for providing the functional select switch of selecting the function of one audio alert content from described several different audio alert contents; Wherein, preestablish several different audio alert contents in the sound light alarming circuit.As seen, mining alarm of the present invention can be realized voice and two kinds of type of alarms of light, and the audio alert content selectable, and therefore, mining detectors of the present invention is various.
Description of drawings
Fig. 1 is the structured flowchart of mining alarm of the present invention;
Fig. 2 is the circuit theory diagrams of the main circuit of mining alarm of the present invention;
Fig. 3 is the circuit theory diagrams of the LED display circuit of mining alarm of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail:
With reference to shown in Figure 1, mining alarm of the present invention comprises DC control circuit, is used for sending dc trigger signal to single-chip microcomputer; AC control circuit is used for sending the interchange triggering signal to single-chip microcomputer; Single-chip microcomputer is used for according to dc trigger signal or exchanges triggering signal guide sound optical alarm circuit carrying out sound and light alarm, wherein, preestablishes several different audio alert contents in the sound light alarming circuit; Functional select switch is used for providing the function of selecting one audio alert content from several different audio alert contents; Intrinsic safety electric source is used for 36V or 127V alternating current are transformed into the 12V direct current; Power supply is used for the 12V direct current is transformed into 5V to single-chip microcomputer and sound light alarming circuit power supply.
In conjunction with shown in Figure 2 and shown in Figure 3, single-chip microcomputer in the mining alarm of the present invention is that PIC single-chip microcomputer and the peripheral circuit thereof of PIC16F628A constitutes by model, sound light alarming circuit comprises voice alarm circuit and optical alarm circuit, voice alarm circuit is that the speech chip of ISD1720 and power amplifier thereof and loudspeaker SP constitute by model, optical alarm circuit is by led drive circuit, LED display circuit with several dual-colored LED lamps constitutes, wherein, the 4th of speech chip, 5,6,7 pins correspondence and the 18th of PIC single-chip microcomputer, 17,16,15 pins link to each other, (by bend, the pedestrian please notes as locomotive to store predefined several different audio alert contents in the speech chip; Drive a vehicle inaccurate pedestrian; The pedestrian passes through, and closes air door; Locomotive passes through bend, the pedestrian please notes etc.), functional select switch is a 4-bit DIP switch, the the 1st to the 4th selecting side correspondence of 4-bit DIP switch links to each other with the 8th, 7,6,3 pins of PIC single-chip microcomputer, the the 5th to the 8th selecting side ground connection of 4-bit DIP switch, the input of led drive circuit links to each other with the 10th, 11 pins of PIC single-chip microcomputer.
Wherein, intrinsic safety electric source comprises the first wiring terminal J1, double-point double-throw switch SK, transformer T1 and voltage-stabilized power supply, wherein, the A of the first wiring terminal J1 links to each other with the upper end on the former limit of transformer T1, the B of the first wiring terminal J1 overcurrent fuse F1 that communicates links to each other with No. 1 common port of double-point double-throw switch SK, No. 2 selecting sides of double-point double-throw switch SK link to each other with the centre tap on the former limit of transformer T1, No. 3 selecting sides of double-point double-throw switch SK link to each other with the lower end on the former limit of transformer T1, the secondary of transformer T1 links to each other with the input of voltage-stabilized power supply, voltage-stabilized power supply comprises current rectifying and wave filtering circuit and reference voltage-stabilizing circuit, current rectifying and wave filtering circuit is by four diode D701, D701, D701, D701 and capacitor C 701 and C702 constitute, and reference voltage-stabilizing circuit is mainly by voltage-stabiliser tube U701, U702, comparator U704A, U704B constitutes.
Wherein, the input of power supply links to each other with the output of reference voltage-stabilizing circuit, power supply comprises filter circuit and secondary mu balanced circuit, filter circuit is made of capacitor C 1, C2, C3 and inductance L 1, the secondary mu balanced circuit is that 7805 voltage-stabiliser tube and peripheral circuit thereof constitute by model, the output of filter circuit links to each other with the input of secondary mu balanced circuit, secondary mu balanced circuit output 5V direct current.
Wherein, AC control circuit comprises diode D1, D2, D3, D4, resistance R 50, R51, R52, R53, capacitor C 50 and model are first optocoupler of PC357, wherein, the output of the input of diode D1 and diode D3 links to each other with the A of the first wiring terminal J1, the output of the input of diode D2 and diode D4 links to each other with the C of the first wiring terminal J1, the output of the output of diode D1 and diode D2 links to each other with an end of resistance R 50, the input of the input of diode D3 and diode D4 links to each other with the 2nd pin of first optocoupler, the other end of resistance R 50 respectively with No. 5 selecting sides of double-point double-throw switch SK, one end of resistance R 51 links to each other, the other end of resistance R 51 respectively with No. 6 selecting sides of double-point double-throw switch SK, one end of resistance R 52 links to each other, the other end of resistance R 52 links to each other with the 2nd pin of first optocoupler, No. 4 common ports of double-point double-throw switch SK respectively with an end of resistance R 53, the positive pole of capacitor C 50 links to each other, the other end of resistance R 53 links to each other with the 1st pin of first optocoupler, the negative pole of capacitor C 50 links to each other with the 2nd pin of first optocoupler, the 3rd pin ground connection of first optocoupler, the 4th pin of first optocoupler links to each other with PIC single-chip microcomputer the 4th pin.
Wherein, DC control circuit comprises that two models are second optocoupler and the 3rd wiring terminal J3 of PC357, the 1st pin of each second optocoupler links to each other with the output of reference voltage-stabilizing circuit by the resistance of a 4.7K Ω respectively, the 2nd pin correspondence of each second optocoupler links to each other with K1, the K2 of the 3rd wiring terminal J3 end, the 3rd pin ground connection of each second optocoupler, the 4th pin correspondence of each second optocoupler links to each other with PIC single-chip microcomputer the 9th, 13 pins.
In addition, in order to ensure safety, mining alarm of the present invention can also comprise by resistance 4R7, model is the 3rd optocoupler of PC357, resistance R 17, capacitor C 13, triode BG3, the locking control circuit that the relay executive circuit that links to each other with the mine car power supply etc. constitute, the input of this circuit is connected with the 12nd pin of PIC single-chip microcomputer, cooperate the sensor that is used for detecting in real time distance between people and the mine car that links to each other with the PIC single-chip microcomputer during use again, when the PIC single-chip microcomputer receive that sensor transmits when the distance between forefathers and the mine car time less than predefined safe distance, send blocking order, relay outage locking, the Braking mode mine car.
The course of work of mining alarm of the present invention is roughly as follows:
The 127V alternating current enters mutually through A phase, the B of the first wiring terminal J1, after passing through fuse F1, double-point double-throw switch SK, enter transformer T1, can select the former limit input voltage of transformer T1 by double-point double-throw switch SK is 36V or 127V, the secondary output AC 18V of transformer T1 enters the intrinsically safe circuit output 12V direct current of being made up of U701, U702 etc., is the power supply of devices such as LED display circuit, power amplifier.And this 12V power supply is also behind the filter circuit with anti-interference function by compositions such as C1,1L1, C2, is that to become the 5V power supply be PIV single-chip microcomputer, speech chip power supply for secondary mu balanced circuit that 7805 voltage-stabiliser tube is formed by model again.When needs are reported to the police, operating personnel import the AC/DC triggering signal, the PIC single-chip microcomputer reads the address information of 4-bit DIP switch, and from speech chip, inquire about the first and last address of the audio alert content of this address information correspondence according to this address information, then, send play instruction according to the first and last address to speech chip, speech chip is then play corresponding audio alert content according to the first and last address, meanwhile, the PIC single-chip microcomputer also sends light warning pulse command to led drive circuit, the bi-colour light of LED display circuit is then evergreen to redden chromatic flicker (under the normal operating conditions, the bi-colour light of LED display circuit is evergreen lighting), concrete sound and light alarm duration can by the PIC single-chip microcomputer set by.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (6)
1. a mining alarm is characterized in that, comprising:
DC control circuit is used for sending dc trigger signal to single-chip microcomputer;
AC control circuit is used for sending the interchange triggering signal to described single-chip microcomputer;
Single-chip microcomputer is used for carrying out sound and light alarm according to described dc trigger signal or described interchange triggering signal guide sound optical alarm circuit, wherein, preestablishes several different audio alert contents in the described sound light alarming circuit;
Functional select switch is used for providing the function of selecting one audio alert content from described several different audio alert contents;
Intrinsic safety electric source is used for 36V or 127V alternating current are transformed into the 12V direct current;
Power supply is used for described 12V direct current is transformed into 5V to described single-chip microcomputer and the power supply of described sound light alarming circuit.
2. mining alarm according to claim 1, it is characterized in that, described single-chip microcomputer is that PIC single-chip microcomputer and the peripheral circuit thereof of PIC16F628A constitutes by model, described sound light alarming circuit comprises voice alarm circuit and optical alarm circuit, described voice alarm circuit is speech chip and power amplifier and loudspeaker (SP) formation of ISD1720 by model, described optical alarm circuit is by led drive circuit, LED display circuit with several dual-colored LED lamps constitutes, wherein, the 4th of described speech chip, 5,6,7 pins correspondence and the 18th of described PIC single-chip microcomputer, 17,16,15 pins link to each other, described functional select switch is a 4-bit DIP switch, the the 1st to the 4th selecting side correspondence and the 8th of the described PIC single-chip microcomputer of described 4-bit DIP switch, 7,6,3 pins link to each other, the the 5th to the 8th selecting side ground connection of described 4-bit DIP switch, the 10th of the input of described led drive circuit and described PIC single-chip microcomputer, 11 pins link to each other.
3. mining alarm according to claim 2, it is characterized in that, described intrinsic safety electric source comprises first wiring terminal (J1), double-point double-throw switch (SK), transformer (T1) and voltage-stabilized power supply, wherein, the A of described first wiring terminal (J1) links to each other with the upper end on the former limit of described transformer (T1), the B of described first wiring terminal (J1) overcurrent fuse (F1) that communicates links to each other with No. 1 common port of described double-point double-throw switch (SK), No. 2 selecting sides of described double-point double-throw switch (SK) link to each other with the centre tap on the former limit of described transformer (T1), No. 3 selecting sides of described double-point double-throw switch (SK) link to each other with the lower end on the former limit of described transformer (T1), the secondary of described transformer (T1) links to each other with the input of described voltage-stabilized power supply, described voltage-stabilized power supply comprises current rectifying and wave filtering circuit and reference voltage-stabilizing circuit, described current rectifying and wave filtering circuit is by four diode D701, D701, D701, D701 and capacitor C 701 and C702 constitute, and described reference voltage-stabilizing circuit is mainly by voltage-stabiliser tube (U701, U702), comparator (U704A, U704B) constitute.
4. mining alarm according to claim 3, it is characterized in that, the input of described power supply links to each other with the output of described reference voltage-stabilizing circuit, described power supply comprises filter circuit and secondary mu balanced circuit, described filter circuit is made of capacitor C 1, C2, C3 and inductance L 1, described secondary mu balanced circuit is that 7805 voltage-stabiliser tube and peripheral circuit thereof constitute by model, the output of described filter circuit links to each other with the input of described secondary mu balanced circuit, described secondary mu balanced circuit output 5V direct current.
5. mining alarm according to claim 2, it is characterized in that, described AC control circuit comprises diode D1, D2, D3, D4, resistance R 50, R51, R52, R53, capacitor C 50 and model are first optocoupler of PC357, wherein, the output of the input of diode D1 and diode D3 links to each other with the A of described first wiring terminal (J1), the output of the input of diode D2 and diode D4 links to each other with the C of described first wiring terminal (J1), the output of the output of diode D1 and diode D2 links to each other with an end of resistance R 50, the input of the input of diode D3 and diode D4 links to each other with the 2nd pin of first optocoupler, the other end of resistance R 50 respectively with No. 5 selecting sides of double-point double-throw switch (SK), one end of resistance R 51 links to each other, the other end of resistance R 51 respectively with No. 6 selecting sides of double-point double-throw switch (SK), one end of resistance R 52 links to each other, the other end of resistance R 52 links to each other with the 2nd pin of first optocoupler, No. 4 common ports of double-point double-throw switch (SK) respectively with an end of resistance R 53, the positive pole of capacitor C 50 links to each other, the other end of resistance R 53 links to each other with the 1st pin of first optocoupler, the negative pole of capacitor C 50 links to each other with the 2nd pin of first optocoupler, the 3rd pin ground connection of first optocoupler, the 4th pin of first optocoupler links to each other with described PIC single-chip microcomputer the 4th pin.
6. mining alarm according to claim 3, it is characterized in that, described DC control circuit comprises that two models are second optocoupler and the 3rd wiring terminal (J3) of PC357, the 1st pin of each second optocoupler links to each other with the output of described reference voltage-stabilizing circuit by the resistance of a 4.7K Ω respectively, the 2nd pin of each second optocoupler is corresponding to link to each other with K1, the K2 end of the 3rd wiring terminal (J3), the 3rd pin ground connection of each second optocoupler, the 4th pin correspondence of each second optocoupler links to each other with described PIC single-chip microcomputer the 9th, 13 pins.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110082706 CN102182514B (en) | 2011-04-01 | 2011-04-01 | Mining alarm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110082706 CN102182514B (en) | 2011-04-01 | 2011-04-01 | Mining alarm |
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| CN102182514A true CN102182514A (en) | 2011-09-14 |
| CN102182514B CN102182514B (en) | 2013-10-23 |
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| CN 201110082706 Active CN102182514B (en) | 2011-04-01 | 2011-04-01 | Mining alarm |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797505A (en) * | 2012-09-07 | 2012-11-28 | 衡水立德科技发展有限责任公司 | Mining alarm |
| CN104503334A (en) * | 2014-12-29 | 2015-04-08 | 镇江中煤电子有限公司 | Mining digital coding remotely controlled voice acoustic optical box circuit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2648162A1 (en) * | 1975-10-28 | 1977-05-12 | Consolidation Coal Co | ELECTRICAL CIRCUIT FOR DETECTING A COMBUSTIBLE GAS MIXTURE IN A PIT ATMOSPHERE |
| DE2851289A1 (en) * | 1977-12-02 | 1979-06-07 | Os Bad Rozwojowy Syst Mech | DEVICE FOR COMMUNICATING WITH TELEMETRIC LINES USING A DIGITAL COMPUTER |
| CN2771650Y (en) * | 2005-01-27 | 2006-04-12 | 刘宏儒 | LED lgiht-source mine-lamp with portable gas detecting-alarming device |
| CN201277060Y (en) * | 2008-10-31 | 2009-07-22 | 江苏三恒科技集团有限公司 | Mining bidirectional locator card |
| CN201420568Y (en) * | 2009-01-15 | 2010-03-10 | 毛允德 | Underground substation of disaster avoidance planning and evacuation instruction system for mining use |
| CN101975091A (en) * | 2010-10-25 | 2011-02-16 | 淮南润成科技有限公司 | Mine curve alarm |
| CN102080571A (en) * | 2011-01-25 | 2011-06-01 | 淮南市新光源特种照明器材有限公司 | Flameproof and intrinsically safe voice acousto-optic signal box for coal mine |
| CN202007691U (en) * | 2011-04-01 | 2011-10-12 | 淮南市智能电器厂 | Mining alarm |
-
2011
- 2011-04-01 CN CN 201110082706 patent/CN102182514B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2648162A1 (en) * | 1975-10-28 | 1977-05-12 | Consolidation Coal Co | ELECTRICAL CIRCUIT FOR DETECTING A COMBUSTIBLE GAS MIXTURE IN A PIT ATMOSPHERE |
| DE2851289A1 (en) * | 1977-12-02 | 1979-06-07 | Os Bad Rozwojowy Syst Mech | DEVICE FOR COMMUNICATING WITH TELEMETRIC LINES USING A DIGITAL COMPUTER |
| CN2771650Y (en) * | 2005-01-27 | 2006-04-12 | 刘宏儒 | LED lgiht-source mine-lamp with portable gas detecting-alarming device |
| CN201277060Y (en) * | 2008-10-31 | 2009-07-22 | 江苏三恒科技集团有限公司 | Mining bidirectional locator card |
| CN201420568Y (en) * | 2009-01-15 | 2010-03-10 | 毛允德 | Underground substation of disaster avoidance planning and evacuation instruction system for mining use |
| CN101975091A (en) * | 2010-10-25 | 2011-02-16 | 淮南润成科技有限公司 | Mine curve alarm |
| CN102080571A (en) * | 2011-01-25 | 2011-06-01 | 淮南市新光源特种照明器材有限公司 | Flameproof and intrinsically safe voice acousto-optic signal box for coal mine |
| CN202007691U (en) * | 2011-04-01 | 2011-10-12 | 淮南市智能电器厂 | Mining alarm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797505A (en) * | 2012-09-07 | 2012-11-28 | 衡水立德科技发展有限责任公司 | Mining alarm |
| CN104503334A (en) * | 2014-12-29 | 2015-04-08 | 镇江中煤电子有限公司 | Mining digital coding remotely controlled voice acoustic optical box circuit |
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| Publication number | Publication date |
|---|---|
| CN102182514B (en) | 2013-10-23 |
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