CN202353569U - Mining intrinsically safe broadcast tributary station - Google Patents
Mining intrinsically safe broadcast tributary station Download PDFInfo
- Publication number
- CN202353569U CN202353569U CN2011204479888U CN201120447988U CN202353569U CN 202353569 U CN202353569 U CN 202353569U CN 2011204479888 U CN2011204479888 U CN 2011204479888U CN 201120447988 U CN201120447988 U CN 201120447988U CN 202353569 U CN202353569 U CN 202353569U
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- China
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- speech
- tributary station
- intrinsic safety
- microprocessor
- safety type
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Abstract
The utility model relates to a broadcast tributary station, in particular to a mining intrinsically safe broadcast tributary station. The tributary station comprises a microcontroller part, a voice processing part, an A/D-D/A converter part and a peripheral circuit, wherein a CAN (Controller Area Network) bus is connected with a micro processor in the mining intrinsically safe broadcast tributary station; voice data is input via a microphone, A/D conversion of the voice data is carried out, and the voice data is compressed via the voice processing part, transmitted to the micro processor and further transmitted to the voice processing part via a microprocessor; the voice data is decompressed by the voice processing part, the D/A conversion of the voice data is carried out, and finally, a power amplification loudspeaker outputs a signal; and the microcontroller part adopts a PLC18F4580-IPT type chip, the voice processing part adopts an AMBE1000 multi-speed voice codec chip. The mining intrinsically safe broadcast tributary station provided by the utility model can ensure high-quality communication between the ground and a mine.
Description
Technical field
The utility model relates to a kind of broadcasting substation, particularly relates to a kind of mining intrinsic safety type broadcasting substation.
Background technology
Because area is bigger under the coal mine, area distribution is wider, and conventional broadcast system exists long apart from audio power transmission difficult wiring, big, the problems such as tonequality is not good, maintenance management is complicated, interactive poor performance of loss.Mining secure broadcast is that each mining area safety is produced indispensable infrastructure; Although video technique and network technology were in develop rapidly in recent years, the most colliery of China is main with the public address phone basically, and it is aspect tonequality; The emergent aspect of safety has also satisfied not the needs of Safety of Coal Mine Production far away; When emergency occurring, for example the gas leakage appears in the down-hole or other accidents need notify underground operators to withdraw, and particularly seals very much owing to subsurface environment; Whether normally the personnel in the pit can not clearly know reservation route passing through of safety when withdrawing; If can not withdraw according to original route, whether also have new route can in time instruct the operating worker escape, this has great influence to the rescue miner when having an accident.
The utility model content
In order to address the above problem, the utility model provides a kind of mining intrinsic safety type broadcasting substation that can ensure the high quality communication of ground and down-hole.
The technical scheme of the utility model is:
A kind of mining intrinsic safety type broadcasting substation comprises the microcontroller part, the speech processes part; A/D-D/A transducer part and peripheral circuit, the CAN bus is connected with the microprocessor that the mining intrinsic safety type is broadcasted in the substation, and speech data carries out the A/D conversion after importing through microphone; Send the data compression packing to microprocessor through speech processing module again, reach speech processing module through microprocessor, by its decompression; Carry out the D/A conversion again, at last by power amplifier loudspeaker output signal.
Microcontroller partly adopts PLC18F4580-IPT model chip; Its two power ends (VDD) and connect after be connected into the positive pole of 5V DC power supply; Its two earth terminals (VSS) ground connection; The CANTX port is connected the CAN bus with the CANRX port, and output (P1B) and output (P1C) connect the input (CHP1) and the input (CHP0) of speech processing circuit respectively.
It is AMBE1000 multi-rate speech codec chip that speech processes partly adopts model, and its output connects the power amplifier loudspeaker.
The beneficial effect of the utility model:
1, the wiring of the utility model mining intrinsic safety type broadcasting substation is simple, is convenient to operation, and is easy to use and the communication acoustical quality is good, and the distortion factor is lower than 15%, intensity of sound: >=85dB (A);
2, the utility model is easy to use, can on coal mine, reach the down-hole and use, and plays and broadcast capability at the audio file of cable network region covered; Suitable environment is extensive; Can be between temperature-20 ℃ be to+60 ℃, humidity is less than using under 95% the condition, and can be in the mine that gas, coal dust are arranged service behaviour good; Noise is low, effectively improves communication quality.
3, long transmission distance, wide coverage, traffic rate is high with stability, can effectively solve the problem of urgency communication when mine down unexpected accident takes place.
4, good, the strong interference immunity of the utility model tonequality, function such as not only have the amplifying of traditional broadcast system, intercommunication, get ready, also possess regularly report, background music, with expanded function such as ground maneuvers platform intercommunication; Be not only applicable to have under the coal mine environment of gas, coal dust explosion hazard, be suitable for using in the industry ground adverse circumstances such as coal, metallurgy, chemical industry, building materials, traffic, electric power, grain yet; Can directly include industrial Ethernet ring network system in.
Description of drawings
Fig. 1 is the connection sketch map of mining intrinsic safety type broadcasting substation.
Fig. 2 is a microcontroller partial circuit sketch map.
Fig. 3 is a speech processes partial circuit sketch map.
Embodiment:
Referring to Fig. 1, Fig. 2, Fig. 3, mining intrinsic safety type broadcasting substation; Comprise the microcontroller part, the speech processes part, A/D-D/A transducer part and peripheral circuit, the CAN bus of input signal is connected with microprocessor; Speech data carries out the A/D conversion after importing through microphone, sends the data compression packing to microprocessor through speech processing module again, reaches speech processing module through microprocessor; By its decompression, carry out the D/A conversion again, at last by power amplifier loudspeaker output signal.
Microcontroller partly adopts PLC18F4580-IPT model chip; Its two power ends (VDD) also connect the positive pole that the back connects the 5V DC power supply; Its two earth terminals (VSS) ground connection, output (P1B) and output (P1C) connect the input (CHP1) and the input (CHP0) of speech processing circuit respectively.
It is AMBE1000 multi-rate speech codec chip that speech processes partly adopts model, and its output connects the power amplifier loudspeaker.
The power supply termination mine flameproof and intrinsic safety type stabilized voltage power supply of mining intrinsic safety broadcasting substation, signal input part CAN-L and CAN-H connect input signal, and the CAN signal is incorporated into through the mining flame-retardant cable and connects input on the Connection Block.
Claims (3)
1. a mining intrinsic safety type broadcasting substation comprises the microcontroller part, the speech processes part; A/D-D/A transducer part and peripheral circuit; It is characterized in that: the CAN bus is connected with the microprocessor that the mining intrinsic safety type is broadcasted in the substation, and speech data carries out the A/D conversion after importing through microphone, sends the data compression packing to microprocessor through speech processing module again; Reach speech processing module through microprocessor; By its decompression, carry out the D/A conversion again, at last by power amplifier loudspeaker output signal.
2. mining intrinsic safety type broadcasting substation according to claim 1; It is characterized in that: microcontroller partly adopts PLC18F4580-IPT model chip; Its two power ends (VDD) and connect after be connected into the positive pole of 5V DC power supply; Its two earth terminals (VSS) ground connection, the CANTX port is connected the CAN bus with the CANRX port, and output (P1B) and output (P1C) connect the input (CHP1) and the input (CHP0) of speech processing circuit respectively.
3. mining intrinsic safety type broadcasting substation according to claim 1, it is characterized in that: it is AMBE1000 multi-rate speech codec chip that speech processes partly adopts model, its output connects the power amplifier loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204479888U CN202353569U (en) | 2011-11-14 | 2011-11-14 | Mining intrinsically safe broadcast tributary station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204479888U CN202353569U (en) | 2011-11-14 | 2011-11-14 | Mining intrinsically safe broadcast tributary station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353569U true CN202353569U (en) | 2012-07-25 |
Family
ID=46542527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204479888U Expired - Lifetime CN202353569U (en) | 2011-11-14 | 2011-11-14 | Mining intrinsically safe broadcast tributary station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353569U (en) |
-
2011
- 2011-11-14 CN CN2011204479888U patent/CN202353569U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |