CN2735410Y - A universal automatic broadcast controller - Google Patents
A universal automatic broadcast controller Download PDFInfo
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- CN2735410Y CN2735410Y CN 200420011223 CN200420011223U CN2735410Y CN 2735410 Y CN2735410 Y CN 2735410Y CN 200420011223 CN200420011223 CN 200420011223 CN 200420011223 U CN200420011223 U CN 200420011223U CN 2735410 Y CN2735410 Y CN 2735410Y
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Abstract
The utility model relates to a universal automatic broadcast controller, which applies to the control of working status of broadcast frequency-modulating sound boxes, a broadcast transmitter, the wired broadcast, etc. An audio signal input terminal is arranged on an audio-frequency amplifier, the output terminal of which is connected with a four-digit BCD decoding switch via the decoding output terminals of a DTMF decoding application-specific integrated circuit, and the four-digit BCD decoding switch is connected with a decoding register comprising decoding counting integrated circuits. A timer device is connected between the output terminal of the DTMF decoding application-specific integrated circuit and the RST end of the decoding counting integrated circuit U3. A bistable circuit comprising an integrated circuit and capacitors are connected with the Q3 and Q4 terminals of the decoding counting integrated circuit U3; the bistable circuit is connected with a medium relay comprising a relay, a triode, a resistor and a diode; the medium relay is connected with an electrical device and an electric power supply. The utility model has advantages of convenience, flexibility, high controlling efficiency, economy, practicality, safety, reliability and low cost.
Description
Technical field:
The utility model belongs to electronic automatic control device, relates in particular to a kind of general self-actuated controller of broadcasting that is used for duty controls such as broadcast modulation audio amplifier, broadcast transmitter, electrophone.
Background technology
Because fast development of computer technology, make the application of computing machine in field of broadcast televisions also universal day by day, at present, the broadcast of most of radio and television, all adopted the computing machine broadcast system, broadcast quality is enhanced, electrophone and frequency modulation audio amplifier also have very big owning amount in the city now, switch control technology as electrophone and frequency modulation audio amplifier, also be in a backward condition, some frequency modulation audio amplifier manufacturer still continues to use the primitive method that adopts the seventies and eighties, just start of signal is promptly arranged, do not have signal just to shut down and control the work of frequency modulation audio amplifier.But, the broadcasting station all takes whole day to broadcast system in 24 hours mostly now, and electrophone and frequency modulation audio amplifier can not be worked in 24 hours, can seriously disturb city dweller's normal life like this, the frequency modulation audio amplifier producer that has is for solving this contradiction, adopt time switch, control the switch of frequency modulation audio amplifier, though do the problem that has solved timed power on/off like this, cost is too high, as the interim switching on and shutting down of needs, just powerless, and in actual the use, still be a lot of when needing interim control, some city is provided with a hundreds of frequency modulation audio amplifier, always can not go one one remove to reset switch, the control audio amplifier how can be flexible and the switching on and shutting down of electrophone do not increase excessive cost again, are the problems that needs solution at present.
Summary of the invention
The purpose of this utility model is to overcome problems of the prior art and provides a kind of broadcasting convenient, flexible, that control efficiency is high, economical and practical general self-actuated controller.
The purpose of this utility model is achieved in that by amplifier U7A, capacitor C 13, the note amplifier that resistance R 7 is formed is provided with audio signal input end IN, the output terminal of note amplifier is through the decoding output terminal Q1 of DTMF decoding special IC U1 (MT8870), Q2, Q3, Q4 is connected with four BCD switch decoders, four BCD switch decoders are connected with the decoding register of being made up of decoding counting circuit U3 (4017) again, output terminal STD at DTMF decoding special IC U1 (MT8870), be connected with the timer of forming by amplifier U5A and integrated circuit U4ANE556 between the RST end of TOG and decoding counting circuit U3 (4017), Q3 at decoding counting circuit U3 (4017), the Q4 end is connected with by integrated circuit U4B, capacitor C 4, the bistable circuit that C5 forms, bistable circuit again with by relay T1, triode Q2, resistance R 8, the auxiliary reclay that diode D8 constitutes is connected, and auxiliary reclay is connected with electrical appliance and power supply again.
The utlity model has the advantage convenient, flexible, that control efficiency is high, economical and practical, safe and reliable, with low cost.
Description of drawings
Fig. 1 is connection side's block diagram of the present utility model.
Fig. 2 is connecting circuit figure of the present utility model.
Embodiment
As Fig. 1, shown in 2, the utility model is by amplifier U7A, capacitor C 13, the note amplifier that resistance R 7 is formed is provided with audio signal input end IN, the output terminal of note amplifier is through the decoding output terminal Q1 of DTMF decoding special IC U1 (MT8870), Q2, Q3, Q4 is connected with four BCD switch decoders, four BCD switch decoders are connected with the decoding register of being made up of decoding counting circuit U3 (4017) again, output terminal STD at DTMF decoding special IC U1 (MT8870), be connected with the timer of forming by amplifier U5A and integrated circuit U4ANE556 between the RST end of TOG and decoding counting circuit U3 (4017), Q3 at decoding counting circuit U3 (4017), the Q4 end is connected with by integrated circuit U4B, capacitor C 4, the bistable circuit that C5 forms, bistable circuit again with by relay T1, triode Q2, resistance R 8, the auxiliary reclay that diode D8 constitutes is connected, and auxiliary reclay is connected with electrical appliance and power supply again.
Physical circuit connects as follows: in audio-frequency amplifier circuit, sound signal goes out input from the upper end IN of resistance R 7, through resistance R 7, capacitor C 13 and jumper switch are delivered to 2 pin of amplifier U7A, signal after the amplification is by the 5 pin output of amplifier U7A, through capacitor C 1, resistance R 1 is sent to 2 pin of integrated circuit U1, in the dtmf decoder circuit, 5 of DTMF decoding special IC U1,6 pin ground connection, 17 pin of U1 connect positive supply by capacitor C 6,16 pin connect 17 pin by resistance R 3,16 pin are again by resistance R 4, diode D1 connects 17 pin, 7 of U1,8 pin meet crystal oscillator X1, in four tunnel outputs of dtmf decoder, 11 pin of U1 connect 10 pin of integrated circuit U2 (74L585), 12 pin of U1 connect 12 pin of integrated circuit U2 (74L585), 13 pin of U1 connect 13 pin of integrated circuit U2 (74L585), 14 pin of U1 connect 15 pin of integrated circuit U2 (74L585), 9 pin of U2 meet two eight bit switch K1,13 of K2,9,13,9 pin, 11 pin of U2 meet two eight bit switch K1,14 of K2,10,14,10 pin, 14 pin of U2 meet two eight bit switch K1,15 of K2,11,15,11 pin, 1 pin of U2 meets two eight bit switch K1,16 of K2,12,16,12 pin, 1 of eight bit switch K1,2,3,4 pin meet diode D2 respectively, D3, D4, the positive pole of D5, D2, D3, D4, the negative pole of D5 connects the back and is connected with 2 pin of amplifier U6A, 5 of eight bit switch K1,6,7,8 pin meet diode D6 respectively, D7, D8, the positive pole of D9, D6, D7, D8, the negative pole of D9 connects the back and is connected with 4 pin of amplifier U6B, 1 of eight bit switch K2,2,3,4 pin meet diode D10 respectively, D11, D12, the positive pole of D13, D10, D11, D12, the negative pole of D13 connects the back and is connected with 6 pin of amplifier U6C, 5 of eight bit switch K2,6,7,8 pin meet diode D14 respectively, D15, D16, the positive pole of D17, D14, D15, D16, the negative pole of D17 connects the back and is connected with 8 pin of amplifier U6D, 1 pin of U6A connects 3 pin of decoding counting circuit U3 (4017), 3 pin of U6B connect 2 pin of U3,5 pin of U6C connect 4 pin of U3,9 pin of U6D connect 7 pin of U3, connect 9 pin of amplifier U5D simultaneously, 8 pin of U5D connect 8 pin of integrated circuit U4B, 2 of U2,4 pin ground connection, 6 pin of U2 connect 13 pin of U3,10 of U1, after being connected, 15 pin connect 1 pin and the resistance R 6 of amplifier U5A, 15 pin of U3 connect 10 pin of amplifier U5E, 11 pin of amplifier U5E connect 5 pin of integrated circuit U4A, 4 of integrated circuit U4A, 14 pin connect positive supply, 2 pin of amplifier U5A connect 6 pin of U4A, 3 pin of U4A are by capacitor C 2 ground connection, 1 of U4A, 2 pin connect positive supply by resistance R 5, simultaneously by C3 ground connection, 10 pin of U3 connect 3 pin of amplifier U5B, 4 pin of U5B connect 10 pin of U4B, 11 pin of U4B are by capacitor C 4 ground connection, 12 of U4B, 13 pin are by capacitor C 5 ground connection, 9 pin of U4B connect resistance R 8,5 pin of R9 and amplifier U5C, resistance R 8 connects the B utmost point of triode Q2, and the C utmost point of triode Q2 is succeeded electrical equipment T1.
Note amplifier: circuit is by U7, C13, R7, form, its input end is connected on the audio output of electrical appliance such as frequency modulation audio amplifier, is the signal input end of this controller, be control signal accurately decoding in demoder that computing machine is sent, prevent to cause a little less than control signal excessively decoding to make mistakes, the spy adds amplifier at the corresponding levels, in order to improve the reliability of complete machine work.
Dtmf decoder: it is made up of DTMF decoding special IC MT8870 and accessory circuit, the control signal of sending here by note amplifier, through 8870 decode after, the decoding output terminal Q1 by 8870, Q2, Q3, Q4 exports four binary-coded decimals.
Four BCD code switchs: circuit is by U2, K1, and K2, and U6a, b, c, d forms, and for preventing the misoperation of controller, realizes multi-functional grouping control, designs this coding switch circuit.The DTMF control signal that only receives, when consistent with the coding of this machine code switch setting, controller just moves.
Decoding counter: circuit is made up of decoding counting circuit U3 (4017).It compares the coding of decoded binary-coded decimal and code switch by turn, as correctly, then exports noble potential by turn by 4017 output terminals, Q3 wherein, and the counter-rotating of Q4 terminal potential is in order to the duty of control subordinate bistable circuit.
Timer: circuit is by U4A, and U5A and peripheral circuit are formed, for preventing to disturb the misoperation that causes by signal, the work of decoding counter is subjected to the control of this timer, only in the time that this timer is set, receive correct control signal, decoding counter could be worked, otherwise decoding counter is with zero clearing, wait for the arrival in next control signal cycle, this timing circuit is monostable duty, and its timing can be by resistance R 5, and the time constant of capacitor C 3 is determined.Timer is subjected to dtmf decoder decoding output STD, and TOG holds control, when the control signal input is arranged, and STD, TOG end output high level triggers timer and just picks up counting.
Bistable circuit: circuit is by U4B and C4, C5 forms, when three control signals that receive when this machine are consistent with the set coding of the code switch of this machine, this circuit is in a kind of steady state (SS), when this machine receives four correct control signals, circuit overturns, and makes output terminal Q terminal potential upset at the corresponding levels, thus the duty of control back electrical appliance.
Auxiliary reclay: by T1, Q2, R8, compositions such as D18, pilot relay adopts the small-sized DC relay, to reduce power consumption, drives with triode, with the reliability of safety action.The duty of electrical appliance just can have been controlled easily in the contact of relay.
Receive indication: circuit is by Q1, R6, and R7, D19 forms.In order to get information about the duty of decoding circuit, add this circuit, when MT8870 was correctly decoded, decoding pilot lamp D19 just lighted.Decoder functions is come into plain view.
Duty indication: circuit is by Q3, U5C, and R9, R10, R11, D20, D21 forms.When bistable circuit was a certain duty, the Q of U4B end was a kind of state, at this moment, D20, D21 have a lamp to light, when upset takes place the Q end, bright lamp extinguishes, and that a does not work lamp is just lighted, and so just can find out the duty of this controller very intuitively.
Power supply: this machine adopts 5 volts of direct current supplys, behind the transformation rectifying and wave-filtering, provides stable operating voltage for giving this machine, adopt 7805 integrated regulators, make output voltage more steady, again via C7, the filter filtering that C8 forms is in order to guarantee the safe and reliable of this machine power supply.
Claims (2)
1, the general self-actuated controller of a kind of broadcasting, it is characterized in that: by amplifier (U7A), electric capacity (C13), the note amplifier that resistance (R7) is formed is provided with audio signal input end (IN), the output terminal of note amplifier is through the decode decoding output terminal (Q1) of special IC (U1) of DTMF, (Q2), (Q3), (Q4) be connected with four BCD switch decoders, four BCD switch decoders are connected with the decoding register of being made up of decoding counting circuit (U3) again, output terminal STD at DTMF decoding special IC (U1), be connected with the timer of forming by amplifier (U5A) and integrated circuit (U4ANE556) between the RST end of TOG and decoding counting circuit (U3), (Q3) at decoding counting circuit (U3), (Q4) end is connected with by integrated circuit (U4B), electric capacity (C4), (C5) bistable circuit of Zu Chenging, bistable circuit again with by relay (T1), triode (Q2), resistance (R8), the auxiliary reclay that diode (D8) constitutes is connected, and auxiliary reclay is connected with electrical appliance and power supply again.
2, the general self-actuated controller of a kind of broadcasting according to claim 1, it is characterized in that: in audio-frequency amplifier circuit, sound signal goes out input from the upper end IN of resistance (R7), through resistance (R7), electric capacity (C13) and jumper switch are delivered to 2 pin of amplifier (U7A), signal after the amplification is by the 5 pin output of amplifier U7A, through capacitor C 1, resistance R 1 is sent to 2 pin of integrated circuit U1, in the dtmf decoder circuit, 5 of DTMF decoding special IC (U1), 6 pin ground connection, (U1) 17 pin connect positive supply by electric capacity (C6), 16 pin connect 17 pin by resistance (R3), 16 pin are again by resistance (R4), diode (D1) connects 17 pin, (U1) 7,8 pin connect crystal oscillator (X1), in four tunnel outputs of dtmf decoder, (U1) 11 pin connect 10 pin of integrated circuit (U2), (U1) 12 pin connect 12 pin of integrated circuit (U2), (U1) 13 pin connect 13 pin of integrated circuit (U2), (U1) 14 pin connect 15 pin of integrated circuit (U2), (U2) 9 pin connect two eight bit switches (K1), (K2) 13,9,13,9 pin, (U2) 11 pin connect two eight bit switches (K1), (K2) 14,10,14,10 pin, (U2) 14 pin connect two eight bit switches (K1), (K2) 15,11,15,11 pin, (U2) 1 pin connects two eight bit switches (K1), (K2) 16,12,16,12 pin, 1 of eight bit switches (K1), 2,3,4 pin connect diode (D2) respectively, (D3), (D4), (D5) positive pole, (D2), (D3), (D4), (D5) negative pole connects the back and is connected with 2 pin of amplifier (U6A), 5 of eight bit switches (K1), 6,7,8 pin connect diode (D6) respectively, (D7), (D8), (D9) positive pole, (D6), (D7), (D8), (D9) negative pole connects the back and is connected with 4 pin of amplifier (U6B), 1 of eight bit switches (K2), 2,3,4 pin connect diode (D10) respectively, (D11), (D12), (D13) positive pole, (D10), (D11), (D12), (D13) negative pole connects the back and is connected with 6 pin of amplifier (U6C), 5 of eight bit switches (K2), 6,7,8 pin connect diode (D14) respectively, (D15), (D16), (D17) positive pole, D14), (D15), (D16), (D17) negative pole connects the back and is connected with 8 pin of amplifier (U6D), (U6A) 1 pin connects 3 pin of decoding counting circuit (U3), (U6B) 3 pin connect 2 pin of (U3), (U6C) 5 pin connect 4 pin of (U3), (U6D) 9 pin connect 7 pin of (U3), connect 9 pin of amplifier (U5D) simultaneously, (U5D) 8 pin connect 8 pin of integrated circuit (U4B), (U2) 2,4 pin ground connection, (U2) 6 pin connect 13 pin of (U3), (U1) 10, after being connected, 15 pin connect 1 pin and the resistance (R6) of amplifier (U5A), (U3) 15 pin connect 10 pin of amplifier (U5E), 11 pin of amplifier (U5E) connect 5 pin of integrated circuit (U4A), 4 of integrated circuit (U4A), 14 pin connect positive supply, 2 pin of amplifier (U5A) connect 6 pin of (U4A), (U4A) 3 pin are by electric capacity (C2) ground connection, (U4A) 1,2 pin connect positive supply by resistance (R5), simultaneously by (C3) ground connection, (U3) 10 pin connect 3 pin of amplifier (U5B), (U5B) 4 pin connect 10 pin of (U4B), (U4B) 11 pin are by electric capacity (C4) ground connection, (U4B) 12,13 pin are by electric capacity (C5) ground connection, (U4B) 9 pin connect resistance (R8), (R9) and 5 pin of amplifier (U5C), resistance (R8) connects the B utmost point of triode (Q2), and the C utmost point of triode (Q2) is succeeded electrical equipment (T1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420011223 CN2735410Y (en) | 2004-07-08 | 2004-07-08 | A universal automatic broadcast controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420011223 CN2735410Y (en) | 2004-07-08 | 2004-07-08 | A universal automatic broadcast controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2735410Y true CN2735410Y (en) | 2005-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420011223 Expired - Fee Related CN2735410Y (en) | 2004-07-08 | 2004-07-08 | A universal automatic broadcast controller |
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| Country | Link |
|---|---|
| CN (1) | CN2735410Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104469573A (en) * | 2014-12-25 | 2015-03-25 | 贵阳裕生万信息技术有限公司 | Loudspeaker box |
-
2004
- 2004-07-08 CN CN 200420011223 patent/CN2735410Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104469573A (en) * | 2014-12-25 | 2015-03-25 | 贵阳裕生万信息技术有限公司 | Loudspeaker box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |