CN2257974Y - Underground communication device for coal mine - Google Patents
Underground communication device for coal mine Download PDFInfo
- Publication number
- CN2257974Y CN2257974Y CN 95228040 CN95228040U CN2257974Y CN 2257974 Y CN2257974 Y CN 2257974Y CN 95228040 CN95228040 CN 95228040 CN 95228040 U CN95228040 U CN 95228040U CN 2257974 Y CN2257974 Y CN 2257974Y
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- 239000003245 coal Substances 0.000 title claims abstract description 6
- 238000004891 communication Methods 0.000 title abstract description 10
- 230000006854 communication Effects 0.000 title abstract description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 5
- 239000003990 capacitor Substances 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 9
- 230000005236 sound signal Effects 0.000 description 8
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000011664 signaling Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The underground coal mine communication device consists of power supply, sound and light and communication circuit. The power supply is characterized in that the power supply is taken from an explosion-proof power supply by an explosion-proof transformer, and a safety grid voltage stabilizing circuit for outputting an intrinsic safety power supply is arranged; the sound-light circuit adopts an audio circuit and a light-emitting diode, and a photoelectric coupler is arranged between the sound-light control button and the power supply; the communication circuit adopts wired carrier transmission and takes a power line as a signal transmission line. The utility model discloses collect sound, light and talkback function, can realize remote information transfer.
Description
The utility model relates to a kind of communicator, more particularly, is a kind of underground communica tion device that is used for the colliery.
In the prior art, the communicator that generally is used under the mine only is a kind of signalling of flame-proof type, comprises the one-piece unit type of a kind of power greater than 80W, by the flame proof button, explosion-proof connection box, flame proof incandescent lamp, the flame proof electric bell is combined formation, finishes semiotic function; Another kind is the combination acoustooptic trembler bell of power greater than 40W, and it has the function of above one-piece unit type.More than the working power of two kinds of signallings all be the 127 volt flame proof power supplys shared with illuminator, operating distance is less than 700 meters, the expression-form of signal is that electric bell is got ready, incandescent lamp cooperates gets synchronous flashing ready.Its obvious weak point is to satisfy the needs that long distance is used, and the expression way of signal is simple, has complicated signal will lean on the staff to transmit on foot slightly.
At present, also be not exclusively used in intercommunication formula communicator under the mine.Cause in special laying communication cable, the flame proof phone is installed, the high duty of its cost, performance difficulty.
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part, and a kind of mine private communication device that integrates sound, light and intercommunication function, can realize remote information transmission is provided.
The purpose of this utility model is achieved through the following technical solutions.
Communicator under a kind of coal mine is made of power circuit, acousto-optic circuit, speaking circuit;
A, it is characterized in that described power circuit adopts flameproof transformer B1, elementary flame proof power supply A, the B end line of connecing of transformer B1, the two-stage guard grating voltage stabilizing circuit of that its secondary setting is made of triode BG1, BG2, output intrinsic safety electric source,
B, described acousto-optic circuit adopt voicefrequency circuit and the light-emitting diode D9 that is made of ic chip, resistance R 10, R11, capacitor C 10, resistance R 12, R13, capacitor C 11, C12 and triode BG3, and between acousto-optic control button QT1 and flame proof power supply A end line and between flame proof power supply and voicefrequency circuit intrinsic safety electric source, photoelectrical coupler GO2 and GO1 are set respectively;
C, described speaking circuit adopt the wire radio transmission, with power line A, B is transmission line, the coupling circuit that is made of inductance L 1, capacitor C 1, C2, C3 and capacitor C 4 is set between transmission line A, B end line and amplitude-modulated signal output a, b, the frequency selection circuit that constitutes by inductance L 1, electric capacity 1C1,1C2 in the setting of audio frequency power amplifier IC1 input simultaneously, and the demodulator circuit that constitutes by resistance 1R1, diode 1D1, electric capacity 1C3.
The utlity model has following advantage:
1, operating distance is long.
Working power of the present utility model is to take from 127V flame proof power supply by isolating transformer, and the intrinsic safety electric source of the explosion-proof processing of process.The maximum allowable power of power supply is 3W.Choose by reasonable parameter when power supply designs, can make that this device can both operate as normal when 127V mains fluctuations scope is+15%～30%.Because it is low in energy consumption, the characteristics of voltage adaptation wide ranges so its effective working distance is not less than 2000 meters, are 2-3 times of colliery sound and light signal device operating distance in the prior art.
2, good call function.
Special-purpose communication device and protective device has communication function concurrently under the coal mine at present, and what mostly adopt is the pattern of hands free telephone, and audio signal is by direct transmission, finishes after the amplification, therefore is subject to other signals and disturbs, and noise is big, and operating distance is short.Call function of the present utility model is to adopt the wire radio transmission, audio signal by modulation after, carrying the pattern of amplitude wave, through the power line emission, the audio signal of receiving terminal obtains after by frequency-selecting, detection, amplification.Therefore, its antijamming capability is strong, and static noise is little, long transmission distance.
3, high economic benefit.
Use the utility model, because it has intercommunication function, so can save the communication cable between phone and the phone under many circumstances.
4, Xin Ying structure.
Signalling is that flame-proof type is introduced mode indirectly in the prior art, and the working power line is introduced into wire connection cavity, then introduces explosion insulation main cavity.Flameproof enclosure is made up of wire connection cavity and explosion-proof chamber, and wire connection cavity externally has only two line outlets.The utility model is designed to Flameproof and intrinsically safe and directly introduces mode, has only explosion-proof chamber not have wire connection cavity, and explosion-proof chamber has four line outlets, and wiring space is big, is easy to the on-the-spot wiring of using.Compared with the prior art, not only because of no wire connection cavity has alleviated own wt, and has certain expanded function.Be included under the situation that does not change other functions, the 127V electric source connecting box can be provided, or draw the incandescent lamp and the electric bell of enhancing signal function.
Accompanying drawing 1 is the utility model power control circuit schematic diagram.
Accompanying drawing 2 is the utility model carrier wave talkback circuit schematic diagram.
By the following examples, in conjunction with the accompanying drawings, the utility model is further described.
Embodiment:
Referring to accompanying drawing 1,2, power circuit adopts flameproof transformer B1, elementary flame proof power supply A, the B end line of connecing of transformer B1, its secondary output 17V exchanges, be about 20V through rectification QL1 full-wave rectification, capacitor C 5 filtered direct voltages, constitute the two poles of the earth guard grating voltage stabilizing circuit by triode BG1, BG2, the output of this voltage stabilizing circuit is intrinsic safety electric source less than 10V certainly, and maximum short circuit current is less than 0.3A.Acousto-optic circuit adopts voicefrequency circuit and light-emitting diode, and among the figure, QT1 is the acousto-optic control button, photoelectrical coupler GO2 is being set between acousto-optic control button QT1 and the flame proof power supply, between flame proof power supply and voicefrequency circuit intrinsic safety electric source photoelectrical coupler GO1 is being set.Speaking circuit adopts the wire radio transmission, with power line A, B is transmission line, the coupling circuit that is made of inductance L 1, capacitor C 1, C2, C3 and capacitor C 4 is set between transmission line and amplitude-modulated signal, the frequency selection circuit that constitutes by inductance L 1, electric capacity 1C1,1C2 in the setting of audio frequency power amplifier input simultaneously, and the demodulator circuit that constitutes by resistance 1R1, diode 1D1, electric capacity 1C3.As shown in the figure, switching button QT2 is set, makes that intrinsic safety electric source is the originating circuit and receipts telephone circuit interleaved power in the speaking circuit.
The course of work is as follows:
1, signal sends:
Press the button QT1 (getting ready), DC power supply makes photoelectrical coupler GO2 conducting through resistance R for photo thyristor GO2 provides trigger current, after the photoelectrical coupler GO2 conducting, provide trigger current through current-limiting resistance R4 for bidirectional triode thyristor CRT, make bidirectional triode thyristor CRT conducting, after the controllable silicon CRT conducting, end line C has, connecting each C line of machine has electricity, and signal sends.
2, signal receives:
The C line has, this TV station receives signal, C and B end line constitute power supply, power supply provides trigger current by resistance R 3, diode D3, resistance R 15 for photoelectrical coupler GO1, make the output conducting of photoelectrical coupler GO1, conducting is after resistance R 16 makes the BG4 conducting for triode BG4 provides base current, and the electric current of exporting after the triode BG4 conducting one tunnel makes it luminous through resistance R 9 for light-emitting diode D9 provides operating current, and one the tunnel provides power supply through resistance R 8 for integrated circuit (IC).The modified tone audio frequency oscillator of being made up of ic chip, resistance R 10, R11, capacitor C 10, resistance R 12, R13, capacitor C 11, C12, triode BG3 gets electric back generation audio signal, through resistance R 17, diode 1D10, electric capacity 1C5 input to power amplifier integrate circuit IC1, by the audio signal after the amplifier IC1 amplification, promote loud speaker Y through capacitance 1C8 and send signal sound.
3, single worker's intercommunication:
A, give orders or instructions: press switching button QT2, power supply provides working power by resistance 2R9 for originating circuit.Voice signal is by microphone MC, be coupled to the input of power amplifier integrate circuit IC2 through electric capacity 2C12, after voice signal amplifies through amplifier IC2, export through electric capacity 2C8, diode 2D1,2D2 amplitude limit are after electric capacity 2C7, resistance 2R6, electric capacity 2C6 are coupled to the input of integrated circuit (IC) 3, integrated circuit (IC) 3 is an oscillation modulator, signal is externally launched by the amplification resonant circuit that inductance L 3, electric capacity 2C1,2C2, triode 2BG1 form after the IC3 modulation, and is coupled to power line (power line) through inductance L 1, capacitor C 1, C2, C3 and capacitor C 4.
B, receipts words: positive supply is normally closed for power amplifier integrate circuit IC1 provides power supply by QT2's, and IC1 is in always and receives the words wait state under the normal condition.When in the power line amplitude-modulated carrier signal being arranged, through inductance L 1, electric capacity 1C1,1C2 frequency-selecting, obtain audio signal after resistance 1R1, diode 1D1, the electric capacity 1C3 demodulation, audio signal is through the input of coupling capacitance IC5 to power amplifier integrate circuit IC1, to loud speaker Y, loud speaker sends voice signal to audio signal after IC1 amplifies by capacitance IC8.
Claims (1)
1, communicator under a kind of coal mine is made of power circuit, acousto-optic circuit, speaking circuit;
A, it is characterized in that described power circuit adopts flameproof transformer B1, elementary flame proof power supply A, the B end line of connecing of transformer B1, the two-stage guard grating voltage stabilizing circuit of that its secondary setting is made of triode BG1, BG2, output intrinsic safety electric source;
B, described acousto-optic circuit adopt voicefrequency circuit and the light-emitting diode D9 that is made of ic chip, resistance R 10, resistance R 11, capacitor C 10, resistance R 12, resistance R 13, capacitor C 11, capacitor C 12 and triode BG3, and between acousto-optic control button QT1 and flame proof power supply A end line and between flame proof power supply and voicefrequency circuit intrinsic safety electric source, photoelectrical coupler GO2 and GO1 are set respectively;
C, described speaking circuit adopt the wire radio transmission, with power line A, B is transmission line, the coupling circuit that is made of inductance L 1, capacitor C 1, C2, C3 and capacitor C 4 is set between transmission line A, B end line and amplitude-modulated signal output a, b, the frequency selection circuit that constitutes by inductance L 1, electric capacity 1C1,1C2 in the setting of audio frequency power amplifier IC1 input simultaneously, and the demodulator circuit that constitutes by resistance 1R1, diode 1D1, electric capacity 1C3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95228040 CN2257974Y (en) | 1995-11-29 | 1995-11-29 | Underground communication device for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95228040 CN2257974Y (en) | 1995-11-29 | 1995-11-29 | Underground communication device for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2257974Y true CN2257974Y (en) | 1997-07-16 |
Family
ID=33873727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95228040 Expired - Fee Related CN2257974Y (en) | 1995-11-29 | 1995-11-29 | Underground communication device for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2257974Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508471A (en) * | 2011-10-27 | 2012-06-20 | 中国矿业大学 | Device and method for coal mine monitor message transmission based on power lines |
| CN103057550A (en) * | 2013-01-17 | 2013-04-24 | 长治市南垂飞虹煤机制造有限公司 | Wired carrier wave control device for coal mine motor tractor |
-
1995
- 1995-11-29 CN CN 95228040 patent/CN2257974Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508471A (en) * | 2011-10-27 | 2012-06-20 | 中国矿业大学 | Device and method for coal mine monitor message transmission based on power lines |
| CN102508471B (en) * | 2011-10-27 | 2013-11-20 | 中国矿业大学 | Device and method for coal mine monitor message transmission based on power lines |
| CN103057550A (en) * | 2013-01-17 | 2013-04-24 | 长治市南垂飞虹煤机制造有限公司 | Wired carrier wave control device for coal mine motor tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |