CN206894707U - A kind of mining mobile phone - Google Patents
A kind of mining mobile phone Download PDFInfo
- Publication number
- CN206894707U CN206894707U CN201720488252.2U CN201720488252U CN206894707U CN 206894707 U CN206894707 U CN 206894707U CN 201720488252 U CN201720488252 U CN 201720488252U CN 206894707 U CN206894707 U CN 206894707U
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- frequency module
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Abstract
The utility model discloses a kind of mining mobile phone, including audio-frequency module, radio-frequency module and power module, the audio-frequency module includes microphone, noise reduction chip, voice coding chip, machine power amplifier and loudspeaker power amplifier, the radio-frequency module includes main control chip, bandpass filter, RF power amplification and RF switch, and the power module includes power supply control chip, electronic switch, current detection circuit and main battery.The utility model superior performance, easy-to-operate.
Description
Technical field
Communication field is the utility model is related to, especially a kind of mining mobile phone.
Background technology
At present, in the underground work such as colliery environment, typically exhaled by the speech form of the amplifications such as broadcast to realize
The function such as be, notify and prompt, and the phone used in underground is mostly landline telephone, this landline telephone can not support base station with
Communication between single underground operators, the communication that can not be used between underground operators.So dashed forward when running into mine
During hair accident, between underground operators can not timely exchange of information, ground staff can not also keep and underground work people in real time
Communication between member, therefore be difficult to provide information most promptly and accurately to them to instruct them to return to ground according to evacuation route
Face.So, easily cause a serious accident loss.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of mining mobile phone.
Technical scheme is used by the utility model：A kind of mining mobile phone, including audio-frequency module, radio-frequency module and power supply
Module, the audio-frequency module include multiple microphones, and the microphone is sequentially connected noise reduction chip and voice coding chip, described
Voice coding chip connects Audio conversion chip, and the Audio conversion chip is connected with earphone power amplifier and loudspeaker power amplifier, the ear
Machine power amplifier and loudspeaker power amplifier drive earphone and loudspeaker respectively, and the radio-frequency module includes main control chip, and the main control chip is successively
Connection bandpass filter, RF power amplification and RF switch, the RF switch are also associated with another bandpass filter, the band logical
Wave filter, which returns even main control chip, the power module, includes power supply control chip, electronic switch, current detection circuit and main electricity
Pond, main battery pass through other electricity consumption devices power supply that electronic switch is on mobile phone, current detection circuit and power supply control chip phase
Connect, when main battery output current is excessive, power supply control chip can cut off the power supply output channel of battery by electronic switch, from
And electric current output is reduced, avoid producing the danger exploded.Described electronic switch is controlled by described power supply control chip, described
Electronic switch be triode, described mining mobile phone has a waterproof and dustproof, explosion-proof shell.
The beneficial effects of the utility model are：In order to adapt to the requirement of the complex environment of mine and security, this is reached
Pacify the related specifications of circuit, make that the field of employment of mobile phone is more extensive, and performance is more superior, operation more safe ready.Can
Avoid the trouble of wiring and increase the high cost of equipment belt.Battery protecting circuit consider scene it can happen that, protect
The security of battery charging and discharging is hindered.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the present utility model, and Fig. 2 is shell of the present utility model.
Fig. 1：11. loudspeaker, 12. earphones, 13. loudspeaker power amplifiers, 14. earphone power amplifiers, 15. Audio conversions, 16. voice coding cores
Piece, 17. noise reduction chips, 18. microphones, 21. main control chips, 22. bandpass filters, 23. RF power amplifications, 24. RF switches,
31. electronic switch, 32. main batterys, 33. power supply control chips, 34. current detection circuits.
Embodiment
It is further to the utility model below in conjunction with the accompanying drawings in order to be more clearly understood that the technical solution of the utility model
Explanation.
A kind of mining mobile phone as shown in Figure 1, including audio-frequency module, radio-frequency module and power module, the audio-frequency module
Including multiple microphones 18, the microphone 18 is sequentially connected noise reduction chip 17 and voice coding chip 16, the voice coding
Chip 16 connects Audio conversion chip 15, and the Audio conversion chip 15 is connected with earphone power amplifier 14 and loudspeaker power amplifier 13, described
Earphone power amplifier 14 and loudspeaker power amplifier 13 drive earphone 12 and loudspeaker 11 respectively, and the radio-frequency module includes main control chip 21, described
Main control chip 21 is sequentially connected bandpass filter 22, RF power amplification 23 and RF switch 24, and the RF switch 24 is also associated with
Another bandpass filter 22, the company's of the returning main control chip 21 of bandpass filter 22, the power module include power supply control chip
33rd, electronic switch 31, current detection circuit 34 and main battery 32, main battery 32 are other use on mobile phone by electronic switch 31
Electrical part is powered, and current detection circuit 34 connects with power supply control chip 33, and described electronic switch 31 is controlled by described electricity
Source control chip 33, described electronic switch 31 are triode.
Electric signal can be converted into after people's voice is caught by microphone 18 during work, the signal can pass through noise reduction first
Chip 17 carries out filtering out for ambient noise, can then be sent to voice coding chip 16 and carry out voice coding, after encoded
Data radio-frequency module is eventually transferred to by main control chip 21.RF switch 24 passes through the enabled transmitting of Control pin first
End, bandpass filter 22 realize radiofrequency signal equilibrate to it is non-equilibrium between conversion, the difference that main control chip 21 is sent out believes
Number single-ended signal is converted to, launched eventually through RF switch 24 and RF power amplification 23.Meanwhile receive the extraneous language sent
During sound signal, RF switch 24 enables receiving terminal by Control pin first, and bandpass filter 22 realizes that radiofrequency signal is non-equilibrium
To the conversion between balance, the single-ended signal that will be received is converted to differential signal, is ultimately sent to main control chip 21, receives
Signal be subsequently passed to voice coding chip 16 carry out tone decoding, the voice signal parsed is eventually through loudspeaker 11 and ear
Machine 12 plays back.Earphone power amplifier 14, loudspeaker power amplifier 13 are audio frequency power amplifier, for driving earphone 12 and loudspeaker 11.In addition, master is worked as
When the output current of battery 32 is excessive, power supply control chip 33 can cut off the power supply output channel of battery by electronic switch 31, from
And electric current output is reduced, avoid producing the danger exploded.
Described above is only better embodiment of the present utility model, therefore all according to described in the utility model patent application range
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent application range.
Claims (1)
- A kind of 1. mining mobile phone, it is characterised in that including audio-frequency module, radio-frequency module and power module, the audio-frequency module bag Multiple microphones are included, the microphone is sequentially connected noise reduction chip and voice coding chip, and the voice coding chip connects sound Frequency switching chip, the Audio conversion chip are connected with earphone power amplifier and loudspeaker power amplifier, earphone power amplifier and the loudspeaker power amplifier point Not Qu Dong earphone and loudspeaker, the radio-frequency module includes main control chip, and the main control chip is sequentially connected bandpass filter, radio frequency Power amplifier and RF switch, the RF switch are also associated with another bandpass filter, and the bandpass filter returns even main control chip, The power module includes power supply control chip, electronic switch, current detection circuit and main battery, and main battery passes through electronic switch For other electricity consumption devices power supply on mobile phone, current detection circuit connects with power supply control chip, when main battery output current mistake When big, power supply control chip can cut off the power supply output channel of battery by electronic switch, so as to reduce electric current output, avoid producing The danger of raw blast, described electronic switch are controlled by described power supply control chip, and described electronic switch is triode, institute The mining mobile phone stated also includes a waterproof and dustproof, explosion-proof shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720488252.2U CN206894707U (en) | 2017-05-04 | 2017-05-04 | A kind of mining mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720488252.2U CN206894707U (en) | 2017-05-04 | 2017-05-04 | A kind of mining mobile phone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206894707U true CN206894707U (en) | 2018-01-16 |
Family
ID=61341345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720488252.2U Active CN206894707U (en) | 2017-05-04 | 2017-05-04 | A kind of mining mobile phone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206894707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020050711A1 (en) * | 2018-09-07 | 2020-03-12 | Exrobotics B.V. | Inspection device for use in a potentially explosive atmosphere |
-
2017
- 2017-05-04 CN CN201720488252.2U patent/CN206894707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020050711A1 (en) * | 2018-09-07 | 2020-03-12 | Exrobotics B.V. | Inspection device for use in a potentially explosive atmosphere |
| NL2021581B1 (en) * | 2018-09-07 | 2020-05-01 | Exrobotics B V | Inspection device for use in a potentially explosive atmosphere |
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