CN103347231A - Intelligent controlling detection circuit - Google Patents
Intelligent controlling detection circuit Download PDFInfo
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- CN103347231A CN103347231A CN2013102941448A CN201310294144A CN103347231A CN 103347231 A CN103347231 A CN 103347231A CN 2013102941448 A CN2013102941448 A CN 2013102941448A CN 201310294144 A CN201310294144 A CN 201310294144A CN 103347231 A CN103347231 A CN 103347231A
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Abstract
The invention discloses an intelligent controlling detection circuit which comprises an intelligent detection circuit, an intelligent off-hook call controlling circuit, an intelligent call end busy tone detection controlling hanging-up circuit, an intelligent double audio frequency detection controlling circuit and an intelligent audio frequency amplifying and long-distance transmission controlling circuit. The intelligent controlling detection circuit can automatically turn on a sound box to carry out expanding broadcasting when no one answers a call, can independently select to turn on or turn off the sound box expanding broadcasting during a calling process, and turns off or turns on the sound box after the number of times of detection of busy tone is set after the phone is hung up.
Description
Technical field
The present invention relates to detect the control circuit of ringing signal sound, explosion-proof audio amplifier and MP3 music switch, specifically the Based Intelligent Control testing circuit.
Background technology
Mine anti-explosion audio amplifier or its control device only can be broadcast when conversation in the expansion of automatic unlatching audio amplifier now, automatically close audio amplifier after the on-hook and expand the simple functions of broadcasting, can not in communication process, independently select to close or open audio amplifier, can not close audio amplifier by detecting busy-back signal after the on-hook, can not realize after the ring several that the ring unanswered opens audio amplifier automatically and expands and function such as broadcast.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of Based Intelligent Control testing circuit, can open audio amplifier in the time of can realizing ring unanswered's phone automatically expands and broadcasts, can independently select to open or close the audio amplifier expansion in the communication process and broadcast, audio amplifier is closed or opened to on-hook after can setting afterwards and detecting the busy tone number of times.
The present invention is that the technical scheme that the deficiency that solves the problems of the technologies described above adopts is: the Based Intelligent Control testing circuit is characterized in that: comprise that Intelligent Measurement circuit, intelligent off-hook conversation control circuit, intelligent call finish that busy tone detects control on-hook circuit, intelligent double-tone detects control circuit frequently and intelligent audio amplifies and the long-distance transmissions control circuit;
The 19th pin of control chip IC1 is connected current-limiting resistance R23 in the operation indication of described Based Intelligent Control testing circuit and the reset circuit, and resistance R 23 connects the negative pole of light-emitting diode L1 simultaneously, and the positive pole of diode L1 connects DC power supply VCC(+5V); The 1st pin of control chip IC1 is by resistance R 18 ground connection GND, and the 1st pin of control chip IC1 connects DC power supply VCC(+5V by capacitor C 8 simultaneously);
The 6th pin of control chip IC1 connects the collector electrode of resistance R 2 and triode Q1 in the described Intelligent Measurement circuit, the other end of resistance R 2 connects DC power supply VCC(+5V) and the 4th pin of optocoupler U1, the base stage of triode Q1 connects an end of resistance R 4, the other end of resistance R 4 connects the 3rd pin of optocoupler U1 and the positive pole of resistance R 3 and electrochemical capacitor C2, the negative pole of the transmitter of triode Q1 and resistance R 3 and electrochemical capacitor C2 and the ground GND that allies the communists.The 2nd pin of optocoupler U1 is connected to the 1st pin of optocoupler U1 by diode D1,1 end of telephone wire is connected to the negative pole of diode D1 and the 1st pin of optocoupler U1 by capacitor C 1, and 2 ends of telephone wire are connected to the positive pole of diode D1 and the 2nd pin of optocoupler U1 by resistance R 1;
The 17th pin of control chip IC1 connects an end of resistance R 24 in the described intelligent off-hook conversation control circuit, and the other end of resistance R 24 connects the negative pole of light-emitting diode L2, and the positive pole of light-emitting diode L2 connects DC power supply VCC(+5V).The 17th pin of control chip IC1 connects an end of resistance R 10 simultaneously, the 2nd pin of the other end optocoupler U3 of resistance R 10, and the 1st pin of optocoupler U3 need connect DC power supply VCC(+5V), the 4th pin of optocoupler U3 connects an end of resistance R 9, the base stage of triode Qa and triode Qb parallel connection is connected to the other end of resistance R 9 and an end of resistance R 5, and the emitter of triode Qa and triode Qb parallel connection is connected to the other end of resistance R 5 and the 2nd pin of rectifier bridge U2; The 3rd pin of optocoupler U3 connects the 4th pin of rectifier bridge U2; The 1st pin of rectifier bridge U2 and the 3rd pin are connected to 1 end and 2 ends of telephone wire, rectifier bridge U2 converts AC signal in the telephone signal to direct current signal, and the collector electrode of triode Qa and triode Qb parallel connection is connected to the negative pole of voltage stabilizing didoe D2 and an end and the collector electrode of triode Q2 and an end of triode Q3 collector electrode and capacitor C 3 of resistance R 6; The 4th pin of rectifier bridge U2 and the 3rd pin of optocoupler are connected the positive pole of diode D2 and positive pole and an end of resistance R 7 and resistance R 8 and the 3rd pin of line transformer T1 of diode D3 together; The other end of resistance R 6 is connected to the base stage of triode Q2 and the negative pole of diode D3, the emitter of triode Q2 connects the base stage of triode Q3 and the other end of resistance R 7, the emitter of triode Q3 connects the other end of resistance R 8, and an end of capacitor C 3 is connected to the 1st pin of line transformer T1; The 4th pin ground connection GND of line transformer, the 2nd pin of line transformer is connected to an end of capacitor C 36; The other end of capacitor C 36 connects the 5th pin of communication relay K1; The 4th pin of communication relay K1 is connected to the 2nd Pin locations of meticulous adjustable potentiometer W1; The 16th pin of control chip IC1 connects an end of resistance R 21, the other end of resistance R 21 connects the base stage of triode Q10, the emitter of triode Q10 connects the 10th pin of communication relay K1 and the positive pole of diode D7, the 1st pin of communication relay K1 be connected with the negative pole of diode D7 DC power supply VCC1 (+5V), the collector electrode common ground GND of the collector electrode of triode Q10 and triode Q9; The 18th pin of control chip IC1 connects an end of resistance R 22, the other end of resistance R 22 connects the base stage of triode Q9, the emitter of triode Q9 connects the positive pole of diode D8 and the 10th pin of private communication relay K 2, and the 1st pin of private communication relay K 2 is connected DC power supply VCC1(+5V with the negative pole of diode D8); The 9th pin of communication relay K1 links to each other with the 4th pin of private communication relay K 2, and the 2nd pin of private communication relay K 2 then is MP3 out output;
Described intelligent call finishes busy tone and detects in the control on-hook circuit, the 7th pin of control chip IC1 connects precisely busy tone detection control chip PHT-03 of specialty numeral, the busy tone that the 8th pin of control chip IC1 connects simulation detects an end of control circuit resistance R 17 and the collector electrode of triode Q5, and resistance R 17 is connected DC power supply VCC(+5V jointly with resistance R 13); The 2nd pin of line transformer T1 connects 2,3 pins of meticulous adjustable resistance R11 and the 1st pin that busy tone detects control chip PHT-03, and the 4th pin of line transformer T1 connects GND publicly; The 1st pin of meticulous adjustable resistance R11 connects an end of capacitor C 11, capacitor C 11 other ends connect the base stage of resistance R 12 and triode Q4, the other end of resistance R 12 connects the collector electrode of resistance R 13 and capacitor C 5 and triode Q4, the other end of resistance R 13 connects DC power supply VCC(+5V), the other end of capacitor C 5 connects negative pole and the diode D6 positive pole of diode D5, the plus earth GND of diode D5, the negative pole of diode D6 connects capacitor C 6 and resistance R 14 and resistance R 15, the other end ground connection of resistance R 15, resistance R 14 the other end connect the base stage of triode Q5 and an end of resistance R 16, the other end ground connection GND of resistance R 16, the grounded emitter GND of triode Q5, the collector electrode of triode Q5 connects the 8th pin of control chip IC1;
The 7th pin of control chip IC1 connects professional numeral busy tone detection accurately control chip PHT-03, the 7th pin of control chip IC1 is connected to the 11st pin of control chip PHT-03 by resistance R 32 and resistance R 27, connects DC power supply VCC(+5V simultaneously between resistance R 32 and resistance R 27).The 7th pin of control chip IC1 also needs to connect the collector electrode of triode Q7, the grounded emitter GND of triode Q7, the base stage of triode Q7 connects an end of resistance R 31, the other end of resistance R 31 connects resistance R 33 and the negative pole of diode D10 and the negative pole of diode D9, and the positive pole of the positive pole of diode D10 and diode D9 is connected the 10th and the 9th pin that busy tone detects control chip PHT-03 respectively.The 4th pin that busy tone detects control chip PHT-03 need connect DC power supply VCC(+5V).The 3rd pin that busy tone detects control chip PHT-03 connects DC power supply VCC(+5V by resistance R 26).The 2nd pin that busy tone detects control chip PHT-03 needs ground connection GND;
The RC filter circuit that the 2nd pin that described intelligent double-tone detects control chip IC1 in the control circuit is frequently formed by resistance R 100 and capacitor C 27 is connected to the 15th pin of control chip IC2, the 11st pin of control chip IC1 connects the 10th pin of control chip IC2, the 12nd pin of control chip IC1 connects the 11st pin of control chip IC2, the 13rd pin of control chip IC1 connects the 12nd pin of control chip IC2, the 14th pin of control chip IC1 connects the 13rd pin of control chip IC2, and the 15th pin of control chip IC1 connects the 14th pin of control chip IC2.The 9th pin of control chip IC1 is connected to the base stage of triode Q8 by resistance R 20, the grounded emitter GND of triode Q8, the collector electrode of triode Q8 connects DC power supply VCC(+5V by resistance R 19).The collector electrode of triode Q8 is connected to the 2nd pin of control chip IC2 by capacitor C 17 and capacitor C 24 and resistance R 28, and the 2nd pin of control chip IC2 links to each other by the 3rd pin of resistance R 29 and control chip IC2.The 1st pin of control chip IC2 links to each other with the 4th pin of control chip IC2.The 18th pin of control chip IC2 is connected to the 17th pin of control chip IC2 by capacitor C 23, the 17th pin of control chip IC2 is connected to the 16th pin of control chip IC2 by resistance R 30, the 18th pin of control chip IC2 connects DC power supply VCC(+5V), the 18th pin of control chip IC2 also needs by capacitor C 22 ground connection GND simultaneously.Control chip IC2 formed with capacitor C 25 with capacitor C 26 by crystal oscillator Y2 and the 7th pin by control chip IC2 is connected with the 8th pin from oscillating circuit;
Described intelligent audio amplifies and long-distance transmissions control circuit sound intermediate frequency signal is connected in the circuit by meticulous adjustable potentiometer W12, the 3rd pin of meticulous adjustable potentiometer W12 is connected to the 1st pin of chip U4 by capacitor C 29, the 2nd pin of chip U4 is by resistance R 40 and capacitor C 33 ground connection GND, the 4th pin of chip U4 is formed feedback circuit, the 3rd pin ground connection GND of chip U4 by the 2nd pin that resistance R 41 is connected to chip U4 simultaneously.The filter circuit that DC power supply 15V forms by capacitor C 30 and electrochemical capacitor C32 is connected to the 5th pin of chip U4, the other end ground connection GND of capacitor C 30 and electrochemical capacitor C32.DC power supply 15V is connected to the 1st pin of chip U4 by resistance R 38 and resistance R 39, and resistance R 37 and capacitor C 34 are formed filter circuits and be connected between resistance R 38 and the resistance R 39.The 4th pin of chip U4 is by resistance R 42 and capacitor C 31 ground connection GND, the 4th pin of chip U4 is connected to the 1st pin of long-distance transmissions transformer T3 by electrochemical capacitor C35, the 3rd pin of long-distance transmissions transformer T3 needs ground connection GND, and the 2nd pin of long-distance transmissions transformer T3 and the 4th pin are as the output of audio signal long-distance transmissions.
Beneficial effect of the present invention is:
1, this circuit automatic, intelligent degree are higher, and can expand broadcast to audio amplifier and carry out ACTIVE CONTROL, and whether the user can select message to be expanded to broadcast according to actual conditions, also can directly broadcast the audio amplifier location.
2, the Intelligent Measurement circuit is connected on the intrinsic safety telephone wire in the lump by P1 and mining intrinsic safety telephone set, at first current-limiting resistance and the electric capacity of the sine wave signal of phone by optocoupler U1 front end enters into optocoupler U1 during ring, the effect of D1 is to prevent that reverse voltage from entering optocoupler, signal enters optocoupler and makes the optocoupler conducting, RC filter circuit through resistance R 3 and capacitor C 2 compositions, be connected to R4 behind the filtering clutter and enter the Q1 triode, the collector electrode output square wave of triode.The square wave of the triode output of single chip computer AT 89C2051 detects judgement, the conversation of control circuit off-hook.
3, single-chip microcomputer outputs to the U2 control circuit by control signal and connects voice signal, voice signal is handled through the amplifying signal of Qa and Qb and Q2 and Q3 by rectifier bridge U2 signal, output to the power amplifier part by line transformer T1 again, output audio signal is gone out sound radio.Make this intelligence off-hook conversation control circuit signal stabilization, broadcast in time.
4, intelligent double-tone detect frequently telephone key-press digital coding that basic function part that control circuit realizes presses by detection and by double-tone frequently decoding chip identify, be sent to control chip IC1 and judge and control the elemental motion of other unit, realize using telephone key-press to control the purpose of opening or closing of audio-amplifying circuit, make the convenient intelligence of control.
5, intelligent call end busy tone detects the basic function of control on-hook circuit realization partly when exchanging the busy-back signal that the output of two parties end of conversation and switch meets national regulation, busy-back signal simulated testing circuit and the precisely detection chip reception of specialty numeral simultaneously, the processing of process busy tone testing circuit also is sent to control chip IC1, make and accurately react the control circuit on-hook, return to reset condition.
Description of drawings
Fig. 1 is the partial circuit figure of the control chip IC1 of Based Intelligent Control testing circuit of the present invention;
Fig. 2 is Intelligent Measurement circuit of the present invention;
Fig. 3 is intelligent off-hook conversation control circuit of the present invention;
Fig. 4 is that intelligent call of the present invention finishes busy tone detection control on-hook circuit;
Fig. 5 is that intelligent double-tone of the present invention detects control circuit frequently;
Fig. 6 is that intelligent audio of the present invention amplifies and the long-distance transmissions control circuit
Embodiment
As shown in the figure, the 19th pin of control chip IC1 is connected current-limiting resistance R23 in the operation indication of described Based Intelligent Control testing circuit and the reset circuit, resistance R 23 connects the negative pole of light-emitting diode L1 simultaneously, and the positive pole of diode L1 connects DC power supply VCC(+5V); The 1st pin of control chip IC1 is by resistance R 18 ground connection GND, and the 1st pin of control chip IC1 connects DC power supply VCC(+5V by capacitor C 8 simultaneously); Control chip IC1 can select single chip computer AT 89C2051 for use.
The operation indication of described Based Intelligent Control testing circuit and the function of reset circuit can be by the indication of scintilltion observation device power supply (DPS) and the ruuning situations of diode, and the program that can control chip IC1 after the energising reruns chip internal, the correctness of assurance program operation.Figure as shown in Figure 1.
The 6th pin of control chip IC1 connects the collector electrode of resistance R 2 and triode Q1 in the described Intelligent Measurement circuit, the other end of resistance R 2 connects DC power supply VCC(+5V) and the 4th pin of optocoupler U1, the base stage of triode Q1 connects an end of resistance R 4, the other end of resistance R 4 connects the 3rd pin of optocoupler U1 and the positive pole of resistance R 3 and electrochemical capacitor C2, the negative pole of the transmitter of triode Q1 and resistance R 3 and electrochemical capacitor C2 and the ground GND that allies the communists.The 2nd pin of optocoupler U1 is connected to the 1st pin of optocoupler U1 by diode D1,1 end of telephone wire is connected to the negative pole of diode D1 and the 1st pin of optocoupler U1 by capacitor C 1, and 2 ends of telephone wire are connected to the positive pole of diode D1 and the 2nd pin of optocoupler U1 by resistance R 1.
As shown in Figure 2.The basic function that described Intelligent Measurement circuit is realized partly is transferred to the leading portion of testing circuit by telephone wire when ringing signal, ringing signal is by optocoupler U1, optocoupler U1 output signal arrives triode Q1 through filtering and the resistance R 4 of resistance R 3 and capacitor C 2, triode Q1 output square-wave signal is also carried out automatic reception, judgement, control by the 6th pin of control chip IC1, thereby realize the detection task of intelligent signal, provide reliable foundation for control chip IC1 makes right judgement.
The 17th pin of control chip IC1 connects an end of resistance R 24 in the described intelligent off-hook conversation control circuit, and the other end of resistance R 24 connects the negative pole of light-emitting diode L2, and the positive pole of light-emitting diode L2 connects DC power supply VCC(+5V).The 17th pin of control chip IC1 connects an end of resistance R 10 simultaneously, the 2nd pin of the other end optocoupler U3 of resistance R 10, and the 1st pin of optocoupler U3 need connect DC power supply VCC(+5V), the 4th pin of optocoupler U3 connects an end of resistance R 9, the base stage of triode Qa and triode Qb parallel connection is connected to the other end of resistance R 9 and an end of resistance R 5, and the emitter of triode Qa and triode Qb parallel connection is connected to the other end of resistance R 5 and the 2nd pin of rectifier bridge U2; The 3rd pin of optocoupler U3 connects the 4th pin of rectifier bridge U2; The 1st pin of rectifier bridge U2 and the 3rd pin are connected to 1 end and 2 ends of telephone wire, rectifier bridge U2 converts AC signal in the telephone signal to direct current signal, and the collector electrode of triode Qa and triode Qb parallel connection is connected to the negative pole of voltage stabilizing didoe D2 and an end and the collector electrode of triode Q2 and an end of triode Q3 collector electrode and capacitor C 3 of resistance R 6; The 4th pin of rectifier bridge U2 and the 3rd pin of optocoupler are connected the positive pole of diode D2 and positive pole and an end of resistance R 7 and resistance R 8 and the 3rd pin of line transformer T1 of diode D3 together; The other end of resistance R 6 is connected to the base stage of triode Q2 and the negative pole of diode D3, the emitter of triode Q2 connects the base stage of triode Q3 and the other end of resistance R 7, the emitter of triode Q3 connects the other end of resistance R 8, and an end of capacitor C 3 is connected to the 1st pin of line transformer T1; The 4th pin ground connection GND of line transformer, the 2nd pin of line transformer is connected to an end of capacitor C 36; The other end of capacitor C 36 connects the 5th pin of communication relay K1; The 4th pin of communication relay K1 is connected to the 2nd Pin locations of meticulous adjustable potentiometer W1; The 16th pin of control chip IC1 connects an end of resistance R 21, the other end of resistance R 21 connects the base stage of triode Q10, the emitter of triode Q10 connects the 10th pin of communication relay K1 and the positive pole of diode D7, the 1st pin of communication relay K1 be connected with the negative pole of diode D7 DC power supply VCC1 (+5V), the collector electrode common ground GND of the collector electrode of triode Q10 and triode Q9; The 18th pin of control chip IC1 connects an end of resistance R 22, the other end of resistance R 22 connects the base stage of triode Q9, the emitter of triode Q9 connects the positive pole of diode D8 and the 10th pin of private communication relay K 2, and the 1st pin of private communication relay K 2 is connected DC power supply VCC1(+5V with the negative pole of diode D8); The 9th pin of communication relay K1 links to each other with the 4th pin of private communication relay K 2, and the 2nd pin of private communication relay K 2 then is MP3 out output;
As shown in Figure 3, the ringing-current that the basic function that described intelligent off-hook conversation control circuit is realized is partly worked as phone is detected by the Based Intelligent Control testing circuit, control program among the control chip IC1 can be made the reaction of judging accurately and making established procedure, control chip IC1 is by control communication relay K1 and communication relay K2, the signal of output is transferred to the output of voice signal by the output of MP3 signal, control chip IC1 control optocoupler U2 conducting is simultaneously also controlled circuit for answering and is opened, the needs transmission of speech signals is delivered to line transformer by amplifying circuit, by line transformer voice signal is sent to communication relay, is delivered to the speech play terminal by power amplifier again.
Described intelligent call finishes busy tone and detects in the control on-hook circuit, the 7th pin of control chip IC1 connects precisely busy tone detection control chip PHT-03 of specialty numeral, the busy tone that the 8th pin of control chip IC1 connects simulation detects an end of control circuit resistance R 17 and the collector electrode of triode Q5, and resistance R 17 is connected DC power supply VCC(+5V jointly with resistance R 13); The 2nd pin of line transformer T1 connects 2,3 pins of meticulous adjustable resistance R11 and the 1st pin that busy tone detects control chip PHT-03, and the 4th pin of line transformer T1 connects GND publicly; The 1st pin of meticulous adjustable resistance R11 connects an end of capacitor C 11, capacitor C 11 other ends connect the base stage of resistance R 12 and triode Q4, the other end of resistance R 12 connects the collector electrode of resistance R 13 and capacitor C 5 and triode Q4, the other end of resistance R 13 connects DC power supply VCC(+5V), the other end of capacitor C 5 connects negative pole and the diode D6 positive pole of diode D5, the plus earth GND of diode D5, the negative pole of diode D6 connects capacitor C 6 and resistance R 14 and resistance R 15, the other end ground connection of resistance R 15, resistance R 14 the other end connect the base stage of triode Q5 and an end of resistance R 16, the other end ground connection GND of resistance R 16, the grounded emitter GND of triode Q5, the collector electrode of triode Q5 connects the 8th pin of control chip IC1.
The 7th pin of control chip IC1 connects professional numeral busy tone detection accurately control chip PHT-03, the 7th pin of control chip IC1 is connected to the 11st pin of control chip PHT-03 by resistance R 32 and resistance R 27, connects DC power supply VCC(+5V simultaneously between resistance R 32 and resistance R 27).The 7th pin of control chip IC1 also needs to connect the collector electrode of triode Q7, the grounded emitter GND of triode Q7, the base stage of triode Q7 connects an end of resistance R 31, the other end of resistance R 31 connects resistance R 33 and the negative pole of diode D10 and the negative pole of diode D9, and the positive pole of the positive pole of diode D10 and diode D9 is connected the 10th and the 9th pin that busy tone detects control chip PHT-03 respectively.The 4th pin that busy tone detects control chip PHT-03 need connect DC power supply VCC(+5V).The 3rd pin that busy tone detects control chip PHT-03 connects DC power supply VCC(+5V by resistance R 26).The 2nd pin that busy tone detects control chip PHT-03 needs ground connection GND.
Described intelligent call end busy tone detects the basic function of control on-hook circuit realization partly when exchanging the busy-back signal that the output of two parties end of conversation and switch meets national regulation, busy-back signal simulated testing circuit and the precisely detection chip reception of specialty numeral simultaneously, the processing of process busy tone testing circuit also is sent to control chip IC1, make and accurately react the control circuit on-hook, return to reset condition; As shown in Figure 4.
The RC filter circuit that the 2nd pin that described intelligent double-tone detects control chip IC1 in the control circuit is frequently formed by resistance R 100 and capacitor C 27 is connected to the 15th pin of control chip IC2, the 11st pin of control chip IC1 connects the 10th pin of control chip IC2, the 12nd pin of control chip IC1 connects the 11st pin of control chip IC2, the 13rd pin of control chip IC1 connects the 12nd pin of control chip IC2, the 14th pin of control chip IC1 connects the 13rd pin of control chip IC2, and the 15th pin of control chip IC1 connects the 14th pin of control chip IC2.The 9th pin of control chip IC1 is connected to the base stage of triode Q8 by resistance R 20, the grounded emitter GND of triode Q8, the collector electrode of triode Q8 connects DC power supply VCC(+5V by resistance R 19).The collector electrode of triode Q8 is connected to the 2nd pin of control chip IC2 by capacitor C 17 and capacitor C 24 and resistance R 28, and the 2nd pin of control chip IC2 links to each other by the 3rd pin of resistance R 29 and control chip IC2.The 1st pin of control chip IC2 links to each other with the 4th pin of control chip IC2.The 18th pin of control chip IC2 is connected to the 17th pin of control chip IC2 by capacitor C 23, the 17th pin of control chip IC2 is connected to the 16th pin of control chip IC2 by resistance R 30, the 18th pin of control chip IC2 connects DC power supply VCC(+5V), the 18th pin of control chip IC2 also needs by capacitor C 22 ground connection GND simultaneously.Control chip IC2 formed with capacitor C 25 with capacitor C 26 by crystal oscillator Y2 and the 7th pin by control chip IC2 is connected with the 8th pin from oscillating circuit.
Described intelligent double-tone detect frequently telephone key-press digital coding that basic function part that control circuit realizes presses by detection and by double-tone frequently decoding chip identify, be sent to control chip IC1 and judge and control the elemental motion of other unit, realize using telephone key-press to control the purpose of opening or closing of audio-amplifying circuit; As shown in Figure 5.
Described intelligent audio amplifies and long-distance transmissions control circuit sound intermediate frequency signal is connected in the circuit by meticulous adjustable potentiometer W12, the 3rd pin of meticulous adjustable potentiometer W12 is connected to the 1st pin of chip U4 by capacitor C 29, the 2nd pin of chip U4 is by resistance R 40 and capacitor C 33 ground connection GND, the 4th pin of chip U4 is formed feedback circuit, the 3rd pin ground connection GND of chip U4 by the 2nd pin that resistance R 41 is connected to chip U4 simultaneously.The filter circuit that DC power supply 15V forms by capacitor C 30 and electrochemical capacitor C32 is connected to the 5th pin of chip U4, the other end ground connection GND of capacitor C 30 and electrochemical capacitor C32.DC power supply 15V is connected to the 1st pin of chip U4 by resistance R 38 and resistance R 39, and resistance R 37 and capacitor C 34 are formed filter circuits and be connected between resistance R 38 and the resistance R 39.The 4th pin of chip U4 is by resistance R 42 and capacitor C 31 ground connection GND, the 4th pin of chip U4 is connected to the 1st pin of long-distance transmissions transformer T3 by electrochemical capacitor C35, the 3rd pin of long-distance transmissions transformer T3 needs ground connection GND, and the 2nd pin of long-distance transmissions transformer T3 and the 4th pin are as the output of audio signal long-distance transmissions.
The basic function part that described intelligence intelligent audio amplifies and the long-distance transmissions control circuit is realized, this circuit can be realized amplification, transmission, the broadcast of MP3 audio signal, can also realize amplification, transmission, the broadcast of voice signal.
IC2 can select the HT9170B chip, controls closing and opening of audio amplifier, and hangs up.
Claims (1)
1. the Based Intelligent Control testing circuit is characterized in that: comprise that Intelligent Measurement circuit, intelligent off-hook conversation control circuit, intelligent call finish busy tone detection control on-hook circuit, intelligent double-tone detects control circuit frequently and intelligent audio amplifies and the long-distance transmissions control circuit;
The 19th pin of control chip IC1 is connected current-limiting resistance R23 in the operation indication of described Based Intelligent Control testing circuit and the reset circuit, and resistance R 23 connects the negative pole of light-emitting diode L1 simultaneously, and the positive pole of diode L1 connects DC power supply VCC; The 1st pin of control chip IC1 is by resistance R 18 ground connection GND, and the 1st pin of control chip IC1 connects DC power supply VCC by capacitor C 8 simultaneously;
The 6th pin of control chip IC1 connects the collector electrode of resistance R 2 and triode Q1 in the described Intelligent Measurement circuit, the other end of resistance R 2 connects the 4th pin of DC power supply VCC and optocoupler U1, the base stage of triode Q1 connects an end of resistance R 4, the other end of resistance R 4 connects the 3rd pin of optocoupler U1 and the positive pole of resistance R 3 and electrochemical capacitor C2, the negative pole of the transmitter of triode Q1 and resistance R 3 and electrochemical capacitor C2 and the ground GND that allies the communists, the 2nd pin of optocoupler U1 is connected to the 1st pin of optocoupler U1 by diode D1,1 end of telephone wire is connected to the negative pole of diode D1 and the 1st pin of optocoupler U1 by capacitor C 1, and 2 ends of telephone wire are connected to the positive pole of diode D1 and the 2nd pin of optocoupler U1 by resistance R 1;
The 17th pin of control chip IC1 connects an end of resistance R 24 in the described intelligent off-hook conversation control circuit, the other end of resistance R 24 connects the negative pole of light-emitting diode L2, the positive pole of light-emitting diode L2 connects DC power supply VCC, the 17th pin of control chip IC1 connects an end of resistance R 10 simultaneously, the 2nd pin of the other end optocoupler U3 of resistance R 10, and the 1st pin of optocoupler U3 connects DC power supply VCC, the 4th pin of optocoupler U3 connects an end of resistance R 9, the base stage of triode Qa and triode Qb parallel connection is connected to the other end of resistance R 9 and an end of resistance R 5, and the emitter of triode Qa and triode Qb parallel connection is connected to the other end of resistance R 5 and the 2nd pin of rectifier bridge U2; The 3rd pin of optocoupler U3 connects the 4th pin of rectifier bridge U2; The 1st pin of rectifier bridge U2 and the 3rd pin are connected to 1 end and 2 ends of telephone wire, rectifier bridge U2 converts AC signal in the telephone signal to direct current signal, and the collector electrode of triode Qa and triode Qb parallel connection is connected to the negative pole of voltage stabilizing didoe D2 and an end and the collector electrode of triode Q2 and an end of triode Q3 collector electrode and capacitor C 3 of resistance R 6; The 4th pin of rectifier bridge U2 and the 3rd pin of optocoupler are connected the positive pole of diode D2 and positive pole and an end of resistance R 7 and resistance R 8 and the 3rd pin of line transformer T1 of diode D3 together; The other end of resistance R 6 is connected to the base stage of triode Q2 and the negative pole of diode D3, the emitter of triode Q2 connects the base stage of triode Q3 and the other end of resistance R 7, the emitter of triode Q3 connects the other end of resistance R 8, and an end of capacitor C 3 is connected to the 1st pin of line transformer T1; The 4th pin ground connection GND of line transformer, the 2nd pin of line transformer is connected to an end of capacitor C 36; The other end of capacitor C 36 connects the 5th pin of communication relay K1; The 4th pin of communication relay K1 is connected to the 2nd Pin locations of meticulous adjustable potentiometer W1; The 16th pin of control chip IC1 connects an end of resistance R 21, the other end of resistance R 21 connects the base stage of triode Q10, the emitter of triode Q10 connects the 10th pin of communication relay K1 and the positive pole of diode D7, the 1st pin of communication relay K1 is connected DC power supply VCC1 with the negative pole of diode D7, the collector electrode common ground GND of the collector electrode of triode Q10 and triode Q9; The 18th pin of control chip IC1 connects an end of resistance R 22, the other end of resistance R 22 connects the base stage of triode Q9, the emitter of triode Q9 connects the positive pole of diode D8 and the 10th pin of communication relay K2, and the 1st pin of communication relay K2 is connected DC power supply VCC1 with the negative pole of diode D8; The 9th pin of communication relay K1 links to each other with the 4th pin of communication relay K2, and the 2nd pin of communication relay K2 then is MP3 out output;
Described intelligent call finishes busy tone and detects in the control on-hook circuit, the 7th pin of control chip IC1 connects busy tone and detects control chip PHT-03, the busy tone that the 8th pin of control chip IC1 connects simulation detects an end of control circuit resistance R 17 and the collector electrode of triode Q5, and resistance R 17 is connected DC power supply VCC jointly with resistance R 13; The 2nd pin of line transformer T1 connects 2,3 pins of meticulous adjustable resistance R11 and the 1st pin that busy tone detects control chip PHT-03, and the 4th pin of line transformer T1 connects GND publicly; The 1st pin of meticulous adjustable resistance R11 connects an end of capacitor C 11, capacitor C 11 other ends connect the base stage of resistance R 12 and triode Q4, the other end of resistance R 12 connects the collector electrode of resistance R 13 and capacitor C 5 and triode Q4, the other end of resistance R 13 connects DC power supply VCC, the other end of capacitor C 5 connects negative pole and the diode D6 positive pole of diode D5, the plus earth GND of diode D5, the negative pole of diode D6 connects capacitor C 6 and resistance R 14 and resistance R 15, the other end ground connection of resistance R 15, resistance R 14 the other end connect the base stage of triode Q5 and an end of resistance R 16, the other end ground connection GND of resistance R 16, the grounded emitter GND of triode Q5, the collector electrode of triode Q5 connects the 8th pin of control chip IC1;
The 7th pin of control chip IC1 connects busy tone and detects control chip PHT-03, the 7th pin of control chip IC1 is connected to the 11st pin that busy tone detects control chip PHT-03 by resistance R 32 and resistance R 27, between resistance R 32 and resistance R 27, connect DC power supply VCC simultaneously, the 7th pin of control chip IC1 also needs to connect the collector electrode of triode Q7, the grounded emitter GND of triode Q7, the base stage of triode Q7 connects an end of resistance R 31, the other end of resistance R 31 connects resistance R 33 and the negative pole of diode D10 and the negative pole of diode D9, the positive pole of the positive pole of diode D10 and diode D9 is connected the 10th and the 9th pin that busy tone detects control chip PHT-03 respectively, the 4th pin that busy tone detects control chip PHT-03 need connect DC power supply VCC, the 3rd pin that busy tone detects control chip PHT-03 connects DC power supply VCC by resistance R 26, and the 2nd pin that busy tone detects control chip PHT-03 needs ground connection GND;
The RC filter circuit that the 2nd pin that described intelligent double-tone detects control chip IC1 in the control circuit is frequently formed by resistance R 100 and capacitor C 27 is connected to the 15th pin of control chip IC2, the 11st pin of control chip IC1 connects the 10th pin of control chip IC2, the 12nd pin of control chip IC1 connects the 11st pin of control chip IC2, the 13rd pin of control chip IC1 connects the 12nd pin of control chip IC2, the 14th pin of control chip IC1 connects the 13rd pin of control chip IC2, the 15th pin of control chip IC1 connects the 14th pin of control chip IC2, the 9th pin of control chip IC1 is connected to the base stage of triode Q8 by resistance R 20, the grounded emitter GND of triode Q8, the collector electrode of triode Q8 connects DC power supply VCC by resistance R 19, the collector electrode of triode Q8 is connected to the 2nd pin of control chip IC2 by capacitor C 17 and capacitor C 24 and resistance R 28, the 2nd pin of control chip IC2 links to each other by the 3rd pin of resistance R 29 and control chip IC2, the 1st pin of control chip IC2 links to each other with the 4th pin of control chip IC2, the 18th pin of control chip IC2 is connected to the 17th pin of control chip IC2 by capacitor C 23, the 17th pin of control chip IC2 is connected to the 16th pin of control chip IC2 by resistance R 30, the 18th pin of control chip IC2 connects DC power supply VCC, simultaneously the 18th pin of control chip IC2 is also by capacitor C 22 ground connection GND, control chip IC2 formed with capacitor C 25 with capacitor C 26 by crystal oscillator Y2 and the 7th pin by control chip IC2 is connected with the 8th pin from oscillating circuit;
Described intelligent audio amplifies and long-distance transmissions control circuit sound intermediate frequency signal is connected in the circuit by meticulous adjustable potentiometer W12, the 3rd pin of meticulous adjustable potentiometer W12 is connected to the 1st pin of chip U4 by capacitor C 29, the 2nd pin of chip U4 is by resistance R 40 and capacitor C 33 ground connection GND, the 4th pin of chip U4 is formed feedback circuit by the 2nd pin that resistance R 41 is connected to chip U4 simultaneously, the 3rd pin ground connection GND of chip U4, the filter circuit that DC power supply 15V forms by capacitor C 30 and electrochemical capacitor C32 is connected to the 5th pin of chip U4, the other end ground connection GND of capacitor C 30 and electrochemical capacitor C32, DC power supply is connected to the 1st pin of chip U4 by resistance R 38 and resistance R 39, resistance R 37 and capacitor C 34 are formed filter circuit and are connected between resistance R 38 and the resistance R 39, the 4th pin of chip U4 is by resistance R 42 and capacitor C 31 ground connection GND, the 4th pin of chip U4 is connected to the 1st pin of transformer T3 by electrochemical capacitor C35, the 3rd pin of transformer T3 needs ground connection GND, and the 2nd pin of transformer T3 and the 4th pin are as the output of audio signal long-distance transmissions.
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Publication number | Priority date | Publication date | Assignee | Title |
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CN105548709A (en) * | 2014-11-03 | 2016-05-04 | 中泰致远(天津)涂料有限公司 | Paint detection system |
CN111277701A (en) * | 2020-01-22 | 2020-06-12 | 青岛中加特电气股份有限公司 | Automatic off-hook and dialing circuit of mine intrinsically safe telephone |
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CN201048423Y (en) * | 2007-06-22 | 2008-04-16 | 武汉钢铁(集团)公司 | Centralized power amplifier of scheduling user machine |
CN203377945U (en) * | 2013-07-15 | 2014-01-01 | 河南恒安通信设备有限责任公司 | Intelligent control and detection circuit |
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