CN207884629U - A kind of underground intercom system - Google Patents
A kind of underground intercom system Download PDFInfo
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- CN207884629U CN207884629U CN201721691889.8U CN201721691889U CN207884629U CN 207884629 U CN207884629 U CN 207884629U CN 201721691889 U CN201721691889 U CN 201721691889U CN 207884629 U CN207884629 U CN 207884629U
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Abstract
The utility model provides a kind of underground intercom system, including voice-input unit, amplifying unit, AD conversion unit, coding unit, illumination modulation circuit, lighting unit, light concentrator, photoelectric detector, amplifier, decoding unit, DA converting units, power amplification unit and voice-output unit.Collected analog audio signal is sent into control unit into amplification, AD conversion and Manchester's code by transmitting terminal, and digital signal is loaded into illumination modulation drive circuit.Light concentrator converges to optical signal on the photosurface of photoelectric detector, and optical signal is converted to electric signal, is regenerated as original manchester encoded signals, is then decoded to signal by control unit and DA is converted.The reduction that voice signal is realized on toy trumpet is finally loaded into signal amplification.The outstanding advantages that the utility model is high using LED response sensitivities, modulating performance is good may be implemented the visible light wireless communication of LED miner's lamps, and underground dark and the small background condition of reflected intensity are conducive to the transmission of visible light, it can be achieved that illumination and communicating dual-purpose.
Description
Technical field
The utility model is related to communication technique fields, and in particular to a kind of underground intercom system.
Background technology
In recent years, there is the underground near radio voice communication carried out using Bluetooth technology, but bluetooth equipment has
Have the shortcomings that power consumption is high, communication distance is short, is easily disturbed.Other the short distance wireless communication technologies also have UWB (ultra wide band) technology,
ZigBee (wireless sensor) technology etc..These technologies belong to Radio-Frequency Wireless Communication, have cost higher, not easy to install and high
The shortcomings of power consumption.And underground communica tion bad environments, a large amount of Mine Dusts, fuel gas and the steam contained in air can absorb nothing
Line electric wave, the narrow radio wave of lane space are easily reflected by the absorption in rock and coal seam.In addition to this, it is also placed with out under mine
It adopts at the top of equipment and air discharging facility and tunnel and surrounding is dispersed with a large amount of wire nettings, these metal objects also can be absorbed and be interfered
Radiofrequency signal influences communication quality and transmission range.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of underground intercom systems.
In order to achieve the above objects and other related objects, a kind of underground intercom system of the utility model offer includes transmitting terminal
And receiving terminal；
The transmitting terminal include voice-input unit, amplifying unit, AD conversion unit, coding unit, illumination modulation circuit,
Luminescence unit；
The receiving terminal includes light concentrator, photoelectric detector, amplifier, decoding unit, DA converting units, power amplification
Unit and voice-output unit；
Voice-input unit, which is used to collect, to be needed the voice signal transmitted and voice signal is converted into analog audio signal,
Amplifying unit is amplified analog audio signal, and amplified analog audio signal is the first number by AD conversion cell translation
Word signal, coding unit carry out Manchester's code to digital signal and generate the second digital signal, and the second digital signal is loaded into
Modulation circuit is illuminated, illumination modulation circuit, which is modulated the light that luminescence unit is sent out, makes luminescence unit shine as required；
The optical signal that luminescence unit is sent out is converged to and is converted into electric signal on photoelectric detector by light concentrator, the telecommunications
Original manchester encoded signals number are generated through amplifier, decision circuit, decoding unit believes original Manchester's code
It number is decoded, the signal for decoding generation is converted to analog signal by DA converting units, and the analog signal is by power amplification unit
Amplification is exported to voice-output unit.
Further, the luminescence unit is LED.
Further, the illumination modulation circuit includes the first capacitance, the second capacitance, first resistor, second resistance and three
Pole pipe, second capacitance are connected with second resistance, and the second capacitance and second are connected to after first resistor is in parallel with the first capacitance
The common node of resistance, second capacitance are parallel between the anode of LED and the base stage of triode, and the second resistance is in parallel
Between the base stage of triode and the emitter of triode, the cathode of LED and the collector of triode connect.
Further, the voice-input unit is microphone.
Further, the voice-output unit is loudspeaker.
Further, the smooth concentrator includes the first convex lens 1, the second convex lens 3 and optical fiber 4, first convex lens
The light of luminescence unit sent out is converged, second convex lens collimates the light of the first convex lens convergence, and the optical fiber passes
The light of defeated second convex lens transmission.
As described above, a kind of underground intercom system of the utility model, has the advantages that：
LED miner's lamps may be implemented in the outstanding advantages that the utility model is high using LED response sensitivities, modulating performance is good can
Light-exposed wireless communication, and underground dark and the small background condition of reflected intensity be conducive to visible light transmission, it can be achieved that illumination and
It communicates dual-purpose.
Description of the drawings
Fig. 1 is shown as a kind of functional block diagram of underground intercom system of the utility model；
Fig. 2 is shown as a kind of circuit diagram of the illumination modulation circuit of underground intercom system of the utility model；
Fig. 3 is shown as a kind of light concentrator structure figure of underground intercom system of the utility model.
Specific implementation mode
Illustrate that the embodiment of the utility model, those skilled in the art can be by this theorys below by way of specific specific example
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different specific implementation modes are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.It should be noted that the case where not conflicting
Under, the feature in following embodiment and embodiment can be combined with each other.
It should be noted that the diagram provided in following embodiment only illustrates the basic of the utility model in a schematic way
Conception, component count, shape when only display is with related component in the utility model rather than according to actual implementation in schema then
And size is drawn, when actual implementation kenel, quantity and the ratio of each component can be a kind of random change, and its assembly layout
Kenel may also be increasingly complex.
As shown in Figure 1, a kind of underground intercom system includes transmitting terminal and receiving terminal；
The transmitting terminal include voice-input unit, amplifying unit, AD conversion unit, coding unit, illumination modulation circuit,
Luminescence unit；
The receiving terminal includes light concentrator, photoelectric detector, amplifier, decoding unit, DA converting units, power amplification
Unit and voice-output unit；
Voice-input unit, which is used to collect, to be needed the voice signal transmitted and voice signal is converted into analog audio signal,
Amplifying unit is amplified analog audio signal, and amplified analog audio signal is the first number by AD conversion cell translation
Word signal, coding unit carry out Manchester's code to digital signal and generate the second digital signal, and the second digital signal is loaded into
Modulation circuit is illuminated, illumination modulation circuit, which is modulated the light that luminescence unit is sent out, makes utility model unit send out as required
Light；
The optical signal that luminescence unit is sent out is converged to and is converted into electric signal on photoelectric detector by light concentrator, the telecommunications
Original manchester encoded signals number are generated through amplifier, decision circuit, decoding unit believes original Manchester's code
It number is decoded, the signal for decoding generation is converted to analog signal by DA converting units, and the analog signal is by power amplification unit
Amplification is exported to voice-output unit.
Voice-input unit, which is a kind of, to be one kind to saying to the function device being acquired of speaking, voice-output unit
Talk about the equipment exported.
In the present embodiment, the voice-input unit is microphone, and the voice-output unit is loudspeaker.It is described to shine
Unit is LED.
The characteristics of according to particular surroundings under mine and white light LEDs visible light communication technology, the utility model provides one kind
Have both the intercom system of illumination and function of voice communication.The system is mounted on miner's crown top of burner, and miner is carried out using this cap
Illumination and voice communication.When two miners need communication, is spoken by microphone, the voice signal of microphone is modulated to mine
The LED light of work hat emits；It is irradiated on the photoreceiver of other side miner's crown, is converted to electric signal, language is reduced to by processing
Sound signal realizes communication.System Working Principle:Voice analog signal is converted to digital signal, then to Signal coding to be suitble to
System is transmitted, and encoded signal is modulated on LED, is sent by visible light (wavelength is 380~780nm) carrier wave；Optical signal
It is transmitted through space channel, the machine that is received receives progress opto-electronic conversion, and subsequent electric signal is reduced to original coding digital signal, most
Signal is decoded afterwards and digital-to-analogue conversion becomes voice analog signal.System does not influence to illuminate in communication；When not communicating, communication
Module enters dormant state (reducing system power dissipation), does not influence the illumination of LED miner's lamps.
Realize that realization is illuminated and communicated and is dual-purpose in LED mine lamp, needs to be improved the driving circuit of LED mine lamp, with
Complete illumination and modulation function and switching.When there is voice signal, LED realizes illumination and communicates dual-purpose；When no voice signal
When, LED uses up maximal efficiency illumination, and physical circuit figure is as shown in Figure 2.
As shown in Fig. 2, the illumination modulation circuit include the first capacitance, the second capacitance, first resistor, second resistance and
Triode, second capacitance are connected with second resistance, and the second capacitance and are connected to after first resistor is in parallel with the first capacitance
The common node of two resistance, second capacitance are parallel between the anode of LED and the base stage of triode, and the second resistance is simultaneously
It is coupled between the base stage of triode and the emitter of triode, the cathode of LED and the collector of triode connect.
When signal is 1, the voltage at the both ends LED is higher than Vg, and LED is shinny；When signal is 0, the voltage at the both ends LED is less than
Vg, LED extinguish.And when no signal, lighting circuit will ensure LED normal illuminations.Illuminating modulation circuit workflow is:When
When no signal, modulation circuit disconnects, lighting circuit works；And when having signal, lighting circuit disconnects, modulation circuit works.
Fig. 3 is light concentrator structure figure, as shown, the smooth concentrator includes the first convex lens 1, the second convex lens 3
With optical fiber 4, the light of the first convex lens convergence luminescence unit sent out, second convex lens collimates first convex lens
The light of convergence, the optical fiber transmit the light of the second convex lens transmission.
Natural light 2 is irradiated on the first convex lens 1, can be the sun since the natural lights such as sunlight are far apart from the earth
Light regards parallel rays as, and according to optical principle, parallel rays converges to the coke of the first convex lens 1 after the refraction of convex lens 1
Point 6 at, then reuse an optical surface much smaller than the first convex lens 1 the second convex lens 3 receive convergence light, in order to make through
Crossing the light of the second convex lens 3 becomes the directional light 7 of convergence, needs the convex of the focus of the second convex lens 3 and the first convex lens 1
Lens focus overlaps, and optical axial overlaps, at the focus 6 in figure.Then the directional light 7 projected from the second convex lens 3 is led
Enter and be transmitted in a branch of optical fiber or optical cable 4, since incident ray is parallel rays, direct projection enters the optical fiber or optical cable of light guide transmission
In 4, it is ensured that realize total reflection completely on the tube wall in optical fiber or optical cable 4, improve efficiency of transmission, while from optical fiber or light
The light 5 that cable 4 projects is exactly a branch of high-luminance light obtained by convergence collection and transmission.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications completed under refreshing and technological thought or change, should be covered by the claim of the utility model.
Claims (6)
1. a kind of underground intercom system, it is characterised in that：Including transmitting terminal and receiving terminal；
The transmitting terminal includes voice-input unit, amplifying unit, AD conversion unit, coding unit, illumination modulation circuit, shines
Unit；
The receiving terminal includes light concentrator, photoelectric detector, amplifier, decoding unit, DA converting units, power amplification unit
And voice-output unit；
Voice-input unit, which is used to collect, to be needed the voice signal transmitted and voice signal is converted into analog audio signal, is amplified
Unit is amplified analog audio signal, and amplified analog audio signal is that the first number is believed by AD conversion cell translation
Number, coding unit carries out Manchester's code to digital signal and generates the second digital signal, and the second digital signal is loaded into illumination
Modulation circuit, illumination modulation circuit, which is modulated the light that luminescence unit is sent out, makes luminescence unit shine as required；
The optical signal that luminescence unit is sent out is converged to and is converted into electric signal on photoelectric detector by light concentrator, electric signal warp
Amplifier, decision circuit generate original manchester encoded signals, decoding unit to original manchester encoded signals into
Row decoding, the signal for decoding generation are converted to analog signal by DA converting units, which is amplified by power amplification unit
It exports to voice-output unit.
2. a kind of underground intercom system according to claim 1, it is characterised in that：The luminescence unit is LED.
3. a kind of underground intercom system according to claim 1, it is characterised in that：The illumination modulation circuit includes the
One capacitance, the second capacitance, first resistor, second resistance and triode, second capacitance are connected with second resistance, first resistor
The common node of the second capacitance and second resistance is connected to after in parallel with the first capacitance, second capacitance is being parallel to LED just
Between pole and the base stage of triode, the second resistance is parallel between the base stage of triode and the emitter of triode, LED's
The collector of cathode and triode connects.
4. a kind of underground intercom system according to claim 1, it is characterised in that：The voice-input unit is Mike
Wind.
5. a kind of underground intercom system according to claim 1, it is characterised in that：The voice-output unit is loudspeaker.
6. a kind of underground intercom system according to claim 1, it is characterised in that：The smooth concentrator includes the first convex lens
Mirror (1), the second convex lens (3) and optical fiber (4), the light of the first convex lens convergence luminescence unit sent out, described second is convex
The light that first convex lens described in collimated converges, the optical fiber transmit the light of the second convex lens transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691889.8U CN207884629U (en) | 2017-12-07 | 2017-12-07 | A kind of underground intercom system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691889.8U CN207884629U (en) | 2017-12-07 | 2017-12-07 | A kind of underground intercom system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207884629U true CN207884629U (en) | 2018-09-18 |
Family
ID=63501822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721691889.8U Active CN207884629U (en) | 2017-12-07 | 2017-12-07 | A kind of underground intercom system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207884629U (en) |
-
2017
- 2017-12-07 CN CN201721691889.8U patent/CN207884629U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A downhole intercom system Effective date of registration: 20221227 Granted publication date: 20180918 Pledgee: Chongqing Rural Commercial Bank Co.,Ltd. Wansheng Sub branch Pledgor: CHONGQING WANSHENG DUYU ELECTROMECHANICAL CO.,LTD. Registration number: Y2022980029178 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |