CN207802224U - A kind of explosion-proof phone system - Google Patents
A kind of explosion-proof phone system Download PDFInfo
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- CN207802224U CN207802224U CN201820065761.9U CN201820065761U CN207802224U CN 207802224 U CN207802224 U CN 207802224U CN 201820065761 U CN201820065761 U CN 201820065761U CN 207802224 U CN207802224 U CN 207802224U
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Abstract
The utility model provides a kind of explosion-proof phone system in field of communication technology, including dial-up circuit, to master controller Sending dialled number signal；Dial generation circuit, generates touch-tone signal and it is sent to decoding circuit；Decoding circuit receives touch-tone signal and decodes, and decoded signal is sent to master controller；Master controller, control dialing generation circuit are connected；It controls all words stations and executes control instruction, connect or monitor specified words station；Speech processing circuit one, handles the voice signal transmitted by transmitter and voice signal is sent to bus by treated；Bus imput output circuit transmits the response voice signal at specified words station by transmitting voice signal to the specified words station connected；Speech processing circuit two, processing voice signal is to receiver；The utility model realizes the intercommunication at any time of master personnel and field personnel.
Description
Technical field
The utility model is related to monitoring technology field, more particularly to a kind of explosion-proof phone system.
Background technology
In the industrial environment of the complexity such as oil drilling, in the prior art, the communication system used is main for interphone system
It can not intercommunication at any time between control personnel and field personnel.
Utility model content
For the defects in the prior art, utility model aims to solve in the prior art can not intercommunication at any time
Technical problem, provides a kind of explosion-proof phone system, this phone system can realize intercommunication at any time.
What the purpose of this utility model was realized in：A kind of explosion-proof phone system, including dial-up circuit and master controller,
Dial-up circuit, to master controller Sending dialled number signal；
Dial generation circuit, and touch-tone signal is generated after being switched on and touch-tone signal is sent to decoding circuit；
Decoding circuit receives touch-tone signal and is decoded, decoded signal is sent to master controller；
Master controller receives dialing signal and is generated to dialing according to the dialing signal Sending dialled number control signal received
Circuit, with control dialing generation circuit connection whether；It receives decoded signal and is dialled according to decoded signal
Signal is controlled, Sending dialled number controls on signal to bus, and all words stations receive dialing control signal and execute control instruction, connect
Or monitor specified words station；
Speech processing circuit one, handles the voice signal transmitted by transmitter and voice signal is sent by treated
To the input terminal of bus imput output circuit；
Bus imput output circuit, by by treated the transmitting voice signal of speech processing circuit one to the specified words connected
It stands, transmits the response voice signal at specified words station；
Speech processing circuit two handles the voice signal transmitted by bus imput output circuit to receiver.
In order to improve controllability whether dialing generation circuit is connected, the dialing generation circuit includes dialer U6 and six
The model HT9302G of driver U1B, dialer U6, the dialing that master controller generates control signal ZGJKZ as six drivers
The two of U1B connect the one end resistance R22 with the input of door input terminal, the output end of six driver U1B, and the resistance R22's is another
The base stage of end connection resistance R25 and NPN type triode V4,12V power supplys connect the hair of the one end resistance R23 and PNP type triode V6
Emitter-base bandgap grading, one end collector connection resistance R29 of triode V6, one end of the one end resistance R19 and resistance R27, the resistance R23's
The base stage of the other end and triode V6 are all connected with one end of resistance R24, the current collection of the other end connecting triode V4 of resistance R24
Pole, the base stage of the other end connection NPN type triode N1 of resistance R29, one end and capacitance C16 of resistance R30 one end, resistance
The anode of the other end connection diode V5 of R27, the power end VDD, triode N1 of the cathode connection dialer U6 of diode V5
Collector connect dialer U6's with the other end of resistance R19Leads ends, I/O mouth C1~C4 and R1 of dialer U6
~R4 passes through one external keypad of zena's safety barrier, and the DTMF leads ends of dialer U6 connect the one end resistance R37, and resistance R37 is another
One end connects one end of resistance R36, and the other end of resistance R37 exports dtmf signal and the input as decoding circuit, the electricity
Hinder the other end of R25, the emitter of triode V4, the other end of capacitance C16, resistance R30 the other end, triode N1 transmitting
The other end of pole, the VSS leads ends of dialer U6 and resistance R36 is grounded.
In order to improve the controllability of speech processing circuit one and speech processing circuit two, the other end of the resistance R19 is also
Connect the power end of the power end and speech processing circuit one of speech processing circuit two.
Master controller is set to identify in order to decode dialing, the decoding circuit includes capacitance C4, by dialer U6's
The dtmf signal that DTMF leads ends generate is inputted as the signal of the one end capacitance C4, and the capacitance C4 other ends connect the one end resistance R10,
The resistance R10 other ends connect the one end resistance R14, and the resistance R14 other ends connect the one end adjustable resistance RP1, and adjustable resistance RP1's is another
One end connects the anode of capacitance C8, one end cathode connection resistance R1 of capacitance C8, and the other end of resistance R1 connects the one of capacitance C20
End, one end of the other end connection resistance R34 of the capacitance C20, the other end connection decoding chip U4's of the resistance R34
The other end of IN- leads ends, resistance R34 is connect through resistance R35 with the GS leads ends of decoding chip U4, after decoding chip will decode
Signal be transferred to master controller, the model MT8870 of decoding chip U4 by Q1~Q4 leads ends.
Stand to specified words to export clearly voice signal, the speech processing circuit one include noise reduction process circuit and
Power amplifier one, external transmitter are connect by zena's safety barrier two with the input terminal of audio-frequency transformer T1, the audio transformation
Input of the output end of device T1 as noise reduction process circuit, the voice signal after noise reduction process circuit noise reduction is as power amplifier
One input, power amplifier one stand the voice signal amplification after noise reduction through bus input/output terminal circuit transmission to specified words.
Voice signal is clearly replied in order to receive, the speech processing circuit two includes noise reduction process circuit and power amplifier
Circuit two, bus imput output circuit transmit the response voice signal transmitted by specified words station and as noise reduction process
The input signal of circuit, input of the response voice signal as power amplifier two after noise reduction process circuit noise reduction, power amplifier
The input terminal of connection audio-frequency transformer T2 after circuit two amplifies response voice signal, the output end warp of the audio-frequency transformer T2
Three external receiver SHQ of zena's safety barrier.
Further include dialing tone processing circuit to make the utility model generate dialing tone in dialing, master controller receives
When to the push button signalling generated by keypad, master controller sends signal sound control signal to dialing tone processing circuit, to generate
Dialing tone.
When utility model works, dial-up circuit generation plucks on-hook signal and sends it to master controller, main controller inspection
When the output signal for measuring dial-up circuit is high level, master controller exports control signal to dialing generation circuit, speech processes
Circuit one and speech processing circuit two, to give dialing generation circuit, speech processing circuit one and speech processing circuit two to provide 12V
Power supply, dialing generation circuit, speech processing circuit one and speech processing circuit two are started to work, by keypad by push button signalling
It is transferred to dialer, dialer outputting dual tone multi-frequency signal（DTMF）, master controller, master control are sent to after being decoded by decoding circuit
After device processed receives decoded signal, control sends and is gone on fsk signal to bus, after all words stations receive fsk signal, executes correlation
Control instruction；Transmitter by voice signal by noise reduction process circuit carry out noise reduction process after, the voice signal after noise reduction process
It is amplified by power amplifier one, amplified voice signal is transmitted over busses stands to specified words, if specified words station nobody
It answers, then master personnel can push button the monitoring key in plate, and master controller is by decoded monitoring control signal transmission to finger
Fixed words station, specified words station are switched on, and master personnel can monitor the sound at specified words station；When specified words station someone answers, specify
Field personnel's speech at station is talked about, bus imput output circuit is connected with speech processing circuit two, response voice signal warp
Bus imput output circuit is transferred to noise reduction process circuit, response voice signal after noise reduction process circuit noise reduction process, as
The input of power amplifier two, the response voice signal after noise reduction are played back from receiver after the amplification of power amplifier two, are realized
Intercommunication at any time；The utility model can realize the intercommunication at any time of master personnel and field personnel, field personnel nobody connect
When listening, master personnel can control it to enter listening mode；When unmanned dialing, dialing generation circuit, speech processing circuit one, voice
Processing circuit two and bus imput output circuit are in off-position, securely and reliably；Pass through speech processing circuit one and voice
The setting of processing circuit two enhances environment resistant and circuit electromagnetic interference performance, enhances environment resistant noiseproof feature, in rugged environment
It is middle to obtain clearly speech quality；It can be applied in the severe communication work of the industrial environments such as oil drilling.
Description of the drawings
Fig. 1 is the circuit total figure of the utility model.
Fig. 2 is the dial-up circuit figure in the utility model.
Specific implementation mode
The utility model will be further described below with reference to the accompanying drawings.
A kind of explosion-proof phone system as depicted in figs. 1 and 2, including
Dial-up circuit, to master controller Sending dialled number signal；
Dial generation circuit, and touch-tone signal is generated after being switched on and touch-tone signal is sent to decoding circuit；
Decoding circuit receives touch-tone signal and is decoded, decoded signal is sent to master controller；
Master controller receives dialing signal and is generated to dialing according to the dialing signal Sending dialled number control signal received
Circuit, with control dialing generation circuit connection whether；It receives decoded signal and is dialled according to decoded signal
Signal is controlled, Sending dialled number controls on signal to bus, and all words stations receive dialing control signal and execute control instruction, connect
Or monitor specified words station；
Speech processing circuit one, handles the voice signal transmitted by transmitter and voice signal is sent by treated
To the input terminal of bus imput output circuit；
Bus imput output circuit, by by treated the transmitting voice signal of speech processing circuit one to the specified words connected
It stands, transmits the response voice signal at specified words station；
Speech processing circuit two handles the voice signal transmitted by bus imput output circuit to receiver；
Dialing tone processing circuit, when master controller receives the push button signalling generated by keypad, master controller is to dialing
Sound processing circuit sends signal sound control signal XHYKZ, to generate dialing tone 450HZ OUT, wherein IN 450HZ are main control
The signal sound of device output.
In order to improve controllability whether dialing generation circuit is connected, dialing generation circuit includes that dialer U6 and six phases are driven
The model HT9302G of dynamic device U1B, dialer U6, the dialing that master controller generates control signal ZGJKZ as six drivers
The two of U1B connect with the input of door input terminal, one end output end connection resistance R22 of six driver U1B, the other end of resistance R22
The base stage of connecting resistance R25 and NPN type triode V4,12V power supplys connect the emitter of the one end resistance R23 and PNP type triode V6,
Collector connection resistance R29 one end of triode V6, one end of the one end resistance R19 and resistance R27, the other end of resistance R23 and
The base stage of triode V6 is all connected with one end of resistance R24, the collector of the other end connecting triode V4 of resistance R24, resistance R29
The base stage of other end connection NPN type triode N1, resistance R30 one end and capacitance C16 one end, the other end of resistance R27
Connect the anode of diode V5, the power end VDD of the cathode connection dialer U6 of diode V5, the collector and electricity of triode N1
Hinder the other end connection dialer U6's of R19I/O mouth C1~C4 and R1~R4 of leads ends, dialer U6 pass through Zener
One external keypad of guard grating, one end DTMF leads ends connection resistance R37 of dialer U6, the resistance R37 other ends connect resistance
The other end of one end of R36, resistance R37 exports dtmf signal and the input as decoding circuit, the other end of resistance R25, three
The VSS of the emitter of pole pipe V4, the other end of capacitance C16, the other end of resistance R30, the emitter of triode N1, dialer U6
The other end of leads ends and resistance R36 are grounded.
In order to improve the controllability of speech processing circuit one and speech processing circuit two, the other end of resistance R19 is also connected with
The power end of the power end and speech processing circuit one of speech processing circuit two.
Master controller is set to identify in order to decode dialing, decoding circuit includes capacitance C4, and the DTMF by dialer U6 draws
The dtmf signal that foot generates is inputted as the signal of the one end capacitance C4, and the capacitance C4 other ends connect the one end resistance R10, resistance
The R10 other ends connect the one end resistance R14, and the resistance R14 other ends connect the one end adjustable resistance RP1, the other end of adjustable resistance RP1
The anode of capacitance C8, one end cathode connection resistance R1 of capacitance C8 are connected, the other end of resistance R1 connects one end of capacitance C20,
One end of the other end connection resistance R34 of capacitance C20, the IN- leads ends of the other end connection decoding chip U4 of resistance R34, electricity
The other end of resistance R34 is connect through resistance R35 with the GS leads ends of decoding chip U4, and decoded signal is passed through Q1 by decoding chip
~Q4 leads ends are transferred to master controller, the model MT8870 of decoding chip U4.
It stands to specified words to export clearly voice signal, speech processing circuit one includes noise reduction process circuit and power amplifier
Circuit one, external transmitter are connect by zena's safety barrier two with the input terminal of audio-frequency transformer T1, and audio-frequency transformer T1's is defeated
Input of the outlet as noise reduction process circuit, the voice signal after noise reduction process circuit noise reduction is as the defeated of power amplifier one
Enter, power amplifier one stands the voice signal amplification after noise reduction through bus input/output terminal circuit transmission to specified words.
Voice signal is clearly replied in order to receive, speech processing circuit two includes noise reduction process circuit and power amplifier
Two, bus imput output circuit transmits the response voice signal transmitted by specified words station and as noise reduction process circuit
Input signal, input of the response voice signal as power amplifier two after noise reduction process circuit noise reduction, power amplifier
Two by the input terminal of connection audio-frequency transformer T2 after the amplification of response voice signal, and the output end of audio-frequency transformer T2 is through Zener safety
Three external receiver SHQ of grid.
In the present embodiment, as shown in Fig. 2, dial-up circuit includes 5V power supplys, 5V power supplys connect the one end tongue tube GHG, dry spring
The pipe GHG other ends connect resistance R26 one end, the resistance R26 other ends connect two of the one end resistance R28 and six driver U1A with
Door input terminal connection, the output end of six driver U1A are connect with master controller；Magnet inside telephone handle is close to tongue tube
When, dry-reed tube switch is closed, and generation plucks on-hook signal and is sent to master controller, and master controller detects the output of six driver U1A
When signal ZGJ-CHECK is high level, master controller exports control signal ZGJKZ to dialing generation circuit, power amplifier two, drop
Make an uproar processing circuit and power amplifier one provides 12V power supplys；
When utility model works, dial-up circuit generation plucks on-hook signal and sends it to master controller, main controller inspection
When the output signal for measuring dial-up circuit is high level, master controller exports control signal to dialing generation circuit, speech processes
Circuit one and speech processing circuit two, to give dialing generation circuit, speech processing circuit one and speech processing circuit two to provide 12V
Power supply, dialing generation circuit, speech processing circuit one and speech processing circuit two are started to work, by keypad by push button signalling
It is transferred to dialer, dialer outputting dual tone multi-frequency signal（DTMF）, master controller, master control are sent to after being decoded by decoding circuit
After device processed receives decoded signal, control sends and is gone on fsk signal to bus, after all words stations receive fsk signal, executes correlation
Control instruction；Transmitter by voice signal by noise reduction process circuit carry out noise reduction process after, the voice signal after noise reduction process
It is amplified by power amplifier one, amplified voice signal is transmitted over busses stands to specified words, if specified words station nobody
It answers, then master personnel can push button the monitoring key in plate, and master controller is by decoded monitoring control signal transmission to finger
Fixed words station, specified words station are switched on, and master personnel can monitor the sound at specified words station；When specified words station someone answers, specify
Field personnel's speech at station is talked about, bus imput output circuit is connected with speech processing circuit two, response voice signal warp
Bus imput output circuit is transferred to noise reduction process circuit, response voice signal after noise reduction process circuit noise reduction process, as
The input of power amplifier two, the response voice signal after noise reduction are played back from receiver after the amplification of power amplifier two, are realized
Intercommunication at any time；The utility model can realize the intercommunication at any time of master personnel and field personnel, field personnel nobody connect
When listening, master personnel can control it to enter listening mode；When unmanned dialing, dialing generation circuit, speech processing circuit one, voice
Processing circuit two and bus imput output circuit are in off-position, securely and reliably；Pass through speech processing circuit one and voice
The setting of processing circuit two enhances environment resistant and circuit electromagnetic interference performance, enhances environment resistant noiseproof feature, in rugged environment
It is middle to obtain clearly speech quality；It can be applied in the severe communication work of the industrial environments such as oil drilling.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing performing creative labour can be special to some of which technology
Sign makes some and replaces and deform, these are replaced and deform in scope of protection of the utility model.
Claims (7)
1. a kind of explosion-proof phone system, it is characterised in that：Including
Dial-up circuit, to master controller Sending dialled number signal；
Dial generation circuit, and touch-tone signal is generated after being switched on and touch-tone signal is sent to decoding circuit；
Decoding circuit receives touch-tone signal and is decoded, decoded signal is sent to master controller；
Master controller receives dialing signal and generates electricity to dialing according to the dialing signal Sending dialled number control signal received
Road, with control dialing generation circuit connection whether；It receives decoded signal and dialing control is obtained according to decoded signal
Signal processed, Sending dialled number control on signal to bus, and all words station receives dialing control signals and simultaneously executes control instruction, connection or
Monitor specified words station；
Speech processing circuit one, handles the voice signal transmitted by transmitter and voice signal is sent to always by treated
The input terminal of line imput output circuit；
Bus imput output circuit, by by treated the transmitting voice signal of speech processing circuit one to the specified words station connected,
The response voice signal at the specified words station of transmission；
Speech processing circuit two handles the voice signal transmitted by bus imput output circuit to receiver.
2. a kind of explosion-proof phone system according to claim 1, it is characterised in that：The dialing generation circuit includes dialling
The model HT9302G of number device U6 and six driver U1B, dialer U6, the dialing control signal ZGJKZ that master controller generates make
For the input of two and the door input terminal of six driver U1B, one end output end connection resistance R22 of six driver U1B, the resistance
The base stage of the other end connection resistance R25 and NPN type triode V4 of R22,12V power supplys connect the one end resistance R23 and three pole of positive-negative-positive
The emitter of pipe V6, one end collector connection resistance R29 of triode V6, one end of the one end resistance R19 and resistance R27 are described
The other end of resistance R23 and the base stage of triode V6 are all connected with one end of resistance R24, the other end connecting triode of resistance R24
The collector of V4, the other end of resistance R29 connect the one of the base stage of NPN type triode N1, one end of resistance R30 and capacitance C16
End, the anode of the other end connection diode V5 of resistance R27, the power end VDD of the cathode connection dialer U6 of diode V5, three
The collector of pole pipe N1 connects dialer U6's with the other end of resistance R19Leads ends, I/O mouths C1~C4 of dialer U6
And R1~R4 passes through one external keypad of zena's safety barrier, one end DTMF leads ends connection resistance R37 of dialer U6, resistance
The R37 other ends connect one end of resistance R36, and the other end of resistance R37 exports dtmf signal and the input as decoding circuit, institute
State the other end of resistance R25, the emitter of triode V4, the other end of capacitance C16, the other end of resistance R30, triode N1
The other end of emitter, the VSS leads ends of dialer U6 and resistance R36 is grounded.
3. a kind of explosion-proof phone system according to claim 2, it is characterised in that：The other end of the resistance R19 also connects
Connect the power end of the power end and speech processing circuit one of speech processing circuit two.
4. a kind of explosion-proof phone system according to claim 2 or 3, it is characterised in that：The decoding circuit includes capacitance
C4, the dtmf signal generated by the DTMF leads ends of dialer U6 are inputted as the signal of the one end capacitance C4, and capacitance C4 is another
End one end connection resistance R10, the resistance R10 other ends connect the one end resistance R14, and the resistance R14 other ends connect adjustable resistance RP1 mono-
End, the anode of the other end connection capacitance C8 of adjustable resistance RP1, one end cathode connection resistance R1 of capacitance C8, resistance R1's is another
One end connects one end of capacitance C20, one end of the other end connection resistance R34 of the capacitance C20, the resistance R34 it is another
The IN- leads ends of end connection decoding chip U4, the other end of resistance R34 connect through the GS leads ends of resistance R35 and decoding chip U4
It connects, decoded signal is transferred to master controller, the model of decoding chip U4 by decoding chip by Q1~Q4 leads ends
MT8870。
5. according to a kind of explosion-proof phone system of claims 1 to 3 any one of them, it is characterised in that：The speech processes electricity
Road one includes noise reduction process circuit and power amplifier one, and external transmitter is defeated by zena's safety barrier two and audio-frequency transformer T1's
Enter end connection, the input of the output end of the audio-frequency transformer T1 as noise reduction process circuit, after noise reduction process circuit noise reduction
Input of the voice signal as power amplifier one, power amplifier one amplifies the voice signal after noise reduction through bus input and output
Terminal circuit is transferred to specified words station.
6. a kind of explosion-proof phone system according to claim 5, it is characterised in that：The speech processing circuit two includes drop
It makes an uproar processing circuit and power amplifier two, the response voice signal that the transmission of bus imput output circuit is transmitted by specified words station is simultaneously
As the input signal of noise reduction process circuit, the response voice signal after noise reduction process circuit noise reduction is as power amplifier electricity
The input on road two, the input terminal of connection audio-frequency transformer T2, the audio become after power amplifier two amplifies response voice signal
The output end of depressor T2 is through three external receiver SHQ of zena's safety barrier.
7. a kind of explosion-proof phone system according to claim 2 or 3, it is characterised in that：Further include dialing tone processing circuit,
When master controller receives the push button signalling generated by keypad, master controller sends signal sound control system to dialing tone processing circuit
Signal, to generate dialing tone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820065761.9U CN207802224U (en) | 2018-01-16 | 2018-01-16 | A kind of explosion-proof phone system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820065761.9U CN207802224U (en) | 2018-01-16 | 2018-01-16 | A kind of explosion-proof phone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207802224U true CN207802224U (en) | 2018-08-31 |
Family
ID=63272139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820065761.9U Active CN207802224U (en) | 2018-01-16 | 2018-01-16 | A kind of explosion-proof phone system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207802224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260029A (en) * | 2018-01-16 | 2018-07-06 | 扬州大正石油科技有限公司 | A kind of explosion-proof phone system |
-
2018
- 2018-01-16 CN CN201820065761.9U patent/CN207802224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260029A (en) * | 2018-01-16 | 2018-07-06 | 扬州大正石油科技有限公司 | A kind of explosion-proof phone system |
| CN108260029B (en) * | 2018-01-16 | 2024-02-27 | 扬州大正石油科技有限公司 | Explosion-proof communication system |
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