CN201306191Y - Mine audible-visual annunciator - Google Patents
Mine audible-visual annunciator Download PDFInfo
- Publication number
- CN201306191Y CN201306191Y CNU2008200305885U CN200820030588U CN201306191Y CN 201306191 Y CN201306191 Y CN 201306191Y CN U2008200305885 U CNU2008200305885 U CN U2008200305885U CN 200820030588 U CN200820030588 U CN 200820030588U CN 201306191 Y CN201306191 Y CN 201306191Y
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- circuit
- power
- power amplifier
- visual annunciator
- transformer
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Abstract
The utility model relates to a mine audible-visual annunciator, which is applicable to the alarming of an underground inclined drift belt conveyer and the alarming for the opening and stopping of a coal mine underground air door. A voice integrated circuit is adopted as the core and consists of a power-supply circuit, a power amplifier circuit and a voice recording and playing circuit, and is characterized in that the power-supply circuit adopts a transformer to supply work power to the power amplifier circuit and the voice recording and playing circuit, and a 36 alternative-current voltage is outputted, and the transformer is connected with a 36V/double-12V transformer and a full-bridge rectifying filtering and voltage stabilizing circuit to form three groups of power sources; an audio signal which is outputted by the voice recording and playing circuit is amplified by the power amplifier circuit; the power amplifier circuit adopts a TDA2030 power amplifier integrated circuit; the voice recording and playing circuit consists of a chip ISD1420, capacitors and resistors. The device has low cost and stable work performances, and is particularly applicable to the alarming of the coal mine underground inclined drift belt conveyer and the opening and stopping alarming of the coal mine underground air door.
Description
Affiliated technical field
The utility model relates to a kind of audible-visual annunciator that uses that the colliery has the device of sound, light warning function that is applied in bargh.
Background technology
The trouble free service in colliery is the important leverage that Coal Production is carried out smoothly.In mine, before large-scale machine starts and after starting, the underground work personnel need obtain security warning, in case unexpected the generation.
Summary of the invention
It is the colliery warning device that core design a kind of can carry out phonetic warning, red light caution simultaneously that the purpose of this utility model provides a kind of speech IC with the advanced person, through on-the-spot uses such as the warning of the inclined gallery, down-hole in colliery belt conveyer, the warnings of coal mine lower wind door start-stop.
This device is that the speech IC ISD1420 with the advanced person is a kind of colliery warning device that can carry out phonetic warning, red light caution simultaneously of core design, the function that this warning device is realized is: during recording, pin record button, facing to the microphone speech, record indicator is bright simultaneously.Unclamp record button, indicator lamp goes out, and stops recording; Perhaps recording surpasses 20 seconds, stops recording automatically, and indicator lamp goes out simultaneously.After the energising, the voice loop play that alarm will record in advance, and light alarm lamp, till power supply is not powered.
Mining audible-visual annunciator is by being made up of power circuit, power amplifier and audio record circuit, it is characterized in that power circuit adopts transformer that the working power of power amplifier and audio record circuit is provided, the audio signal of audio record circuit output inserts through power amplifier for amplifying.
The transformer output 36V alternating current that power circuit adopts connects the two 12V transformers of 36V/, full-bridge rectification filtering and mu balanced circuit in turn, obtains three groups of power supplys; + 12V ,-12V is the power amplifier power supply ,+5V is the sound circuit power supply; In+5v termination a light emitting diode.
Power amplifier adopts TDA2030 power amplifier integrate circuit, exportable 14～18W power.This device has the characteristics that output current is big, cross distortion is little, and inside also has perfect holding circuit, can exchange with homemade 8F2030.In the circuit, RP is a volume control potentiometer.
Audio record circuit is the core of alarm, is made of chip I SD1420 and some electric capacity, resistance.Because peripheral cell is fewer, power consumption can be decreased to below 0.5 microampere.With address end A1, A2, A3, A4, A5, the whole ground connection of A6, A7 of IC1, expression recording playback initial address is 00000000, and the recording playback time is the maximum duration 20 seconds of this integrated package.R2 and button K form control recorded audio signals passage, and the K that pushes button can record and reach 20 seconds voice messaging.R5 and C12 form the circulation circuit that powers on, when 20 second time then, capacitor discharge makes the PLAYE end effective for low level just, continues playback.LED links to each other with R9, forms the recording indicating circuit.The lower frequency limit of the selection decision voice passband of R4 and C13.The automatic gain control of the RC circuit decision ISD1420 that R6, C14 form.SP+, SP-are power take-off, adopt the single-ended way of output, are coupled to final-stage power amplifier by C18, R11, to improve power output.C15 holds " MICREF " that the Electret condenser microphone earth terminal is coupled to IC1, and the typing noise level is obviously improved.
The utility model has the advantages that: simple in structure, cost is lower, and stable work in work is particularly suitable for warning, the warning of coal mine lower wind door start-stop of inclined gallery, the down-hole belt conveyer in colliery etc.
Description of drawings
Concrete structure of the present utility model mountain the following drawings provides:
Accompanying drawing 1 is the power circuit diagram of mining audible-visual annunciator.
Accompanying drawing 2 is power amplifier figure of mining audible-visual annunciator.
Accompanying drawing 3 is audio record circuit figure of mining audible-visual annunciator.
LED-light emitting diode, TDA2030-power amplifier integrate circuit, RP-volume control potentiometer, ISD1420-voice recording and playback ic, R-resistance, C-electric capacity.
The specific embodiment
The utility model also will be further described in conjunction with above accompanying drawing:
Mining audible-visual annunciator is made up of power circuit, power amplifier and audio record circuit, and power circuit provides the working power of power amplifier and audio record circuit, and the audio signal of audio record circuit output inserts through power amplifier for amplifying.
The transformer output 36V alternating current that power circuit adopts connects the two 12V transformers of 36V/, full-bridge rectification filtering and mu balanced circuit in turn, obtains three groups of power supplys; + 12V ,-12V is the power amplifier power supply ,+5V is the sound circuit power supply; In+5v termination a light emitting diode.
Power amplifier adopts the TDA2030 power amplifier integrate circuit, can exchange with homemade 8F2030.In the circuit, RP is a volume control potentiometer.
Audio record circuit is the core of alarm, is made of chip I SD1420 and some electric capacity, resistance.Because peripheral cell is fewer, power consumption can be decreased to below 0.5 microampere.With address end A1, A2, A3, A4, A5, the whole ground connection of A6, A7 of IC1, expression recording playback initial address is 00000000, and the recording playback time is the maximum duration 20 seconds of this integrated package.R2 and button K form control recorded audio signals passage, and the K that pushes button can record and reach 20 seconds voice messaging.R5 and C12 form the circulation circuit that powers on, when 20 second time then, capacitor discharge makes the PLAYE end effective for low level just, continues playback.LED links to each other with R9, forms the recording indicating circuit.The lower frequency limit of the selection decision voice passband of R4 and C13.The automatic gain control of the RC circuit decision ISD1420 that R6, C14 form.SP+, SP-are power take-off, adopt the single-ended way of output, are coupled to final-stage power amplifier by C18, R11, to improve power output.C15 is coupled to the Electret condenser microphone earth terminal at " MICREF " end of IC1.
Claims (4)
1, a kind of mining audible-visual annunciator, form by power circuit, power amplifier and audio record circuit, it is characterized in that power circuit adopts transformer that the working power of power amplifier and audio record circuit is provided, output 36V alternating current, connect the two 12V transformers of 36V/, full-bridge rectification filtering and mu balanced circuit in turn, obtain three groups of power supplys; The audio signal of audio record circuit output inserts through power amplifier and supplies to amplify, and power amplifier adopts the TDA2030 power amplifier integrate circuit, and RP is a volume control potentiometer.
2, mining audible-visual annunciator according to claim 1, it is characterized in that in three groups of power supplys of the transformer that power circuit adopts+12V ,-12V is the power amplifier power supply ,+5V is the sound circuit power supply; In+5v termination a light emitting diode.
3, mining audible-visual annunciator according to claim 1 is characterized in that the TDA2030 power amplifier integrate circuit can exchange with homemade 8F2030.
4, mining audible-visual annunciator according to claim 1 is characterized in that audio record circuit is made of chip I SD1420 and some electric capacity, resistance; The address end A1 of IC1, A2, A3, A4, A5, the whole ground connection of A6, A7, the recording playback time is the maximum duration 20 seconds of this integrated package; R2 and button K form control recorded audio signals passage; R5 and C12 form the circuit that powers on that circulates; LED links to each other with R9, forms the recording indicating circuit; The automatic gain control of the RC circuit decision ISD1420 that R6, C14 form; SP+, SP-are power take-off, adopt the single-ended way of output, are coupled to final-stage power amplifier by C18, R11; C15 is coupled to the Electret condenser microphone earth terminal at " MICREF " end of IC1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200305885U CN201306191Y (en) | 2008-01-03 | 2008-01-03 | Mine audible-visual annunciator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200305885U CN201306191Y (en) | 2008-01-03 | 2008-01-03 | Mine audible-visual annunciator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306191Y true CN201306191Y (en) | 2009-09-09 |
Family
ID=41098657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200305885U Expired - Fee Related CN201306191Y (en) | 2008-01-03 | 2008-01-03 | Mine audible-visual annunciator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306191Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873066A (en) * | 2010-06-25 | 2010-10-27 | 海洋王照明科技股份有限公司 | Multi-circuit power supply conversion circuit |
| CN101975091A (en) * | 2010-10-25 | 2011-02-16 | 淮南润成科技有限公司 | Mine curve alarm |
| CN102080563A (en) * | 2010-11-27 | 2011-06-01 | 淄博矿业集团有限责任公司 | Air door whistling and vehicle blocking device for mine main transportation roadway |
| CN102536322A (en) * | 2011-12-26 | 2012-07-04 | 枣庄联创实业有限责任公司 | Mining acousto-optic alarm |
| CN103051211A (en) * | 2012-12-24 | 2013-04-17 | 天津三星电子有限公司 | Power adapter |
| CN106374759A (en) * | 2016-10-19 | 2017-02-01 | 成都尚智恒达科技有限公司 | Multiplexed output power supply with protection function |
| CN106507534A (en) * | 2016-10-19 | 2017-03-15 | 成都尚智恒达科技有限公司 | A kind of lightning protection multivoltage output circuit for LED |
-
2008
- 2008-01-03 CN CNU2008200305885U patent/CN201306191Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873066A (en) * | 2010-06-25 | 2010-10-27 | 海洋王照明科技股份有限公司 | Multi-circuit power supply conversion circuit |
| CN101975091A (en) * | 2010-10-25 | 2011-02-16 | 淮南润成科技有限公司 | Mine curve alarm |
| CN101975091B (en) * | 2010-10-25 | 2013-02-27 | 淮南润成科技股份有限公司 | Mine curve alarm |
| CN102080563A (en) * | 2010-11-27 | 2011-06-01 | 淄博矿业集团有限责任公司 | Air door whistling and vehicle blocking device for mine main transportation roadway |
| CN102080563B (en) * | 2010-11-27 | 2013-01-23 | 淄博矿业集团有限责任公司 | Air door whistling and vehicle blocking device for mine main transportation roadway |
| CN102536322A (en) * | 2011-12-26 | 2012-07-04 | 枣庄联创实业有限责任公司 | Mining acousto-optic alarm |
| CN103051211A (en) * | 2012-12-24 | 2013-04-17 | 天津三星电子有限公司 | Power adapter |
| CN106374759A (en) * | 2016-10-19 | 2017-02-01 | 成都尚智恒达科技有限公司 | Multiplexed output power supply with protection function |
| CN106507534A (en) * | 2016-10-19 | 2017-03-15 | 成都尚智恒达科技有限公司 | A kind of lightning protection multivoltage output circuit for LED |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20100203 |