CN2155572Y - Central signal device - Google Patents
Central signal device Download PDFInfo
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- CN2155572Y CN2155572Y CN 93238300 CN93238300U CN2155572Y CN 2155572 Y CN2155572 Y CN 2155572Y CN 93238300 CN93238300 CN 93238300 CN 93238300 U CN93238300 U CN 93238300U CN 2155572 Y CN2155572 Y CN 2155572Y
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Abstract
The utility model relates to a central signal device, which comprises a flashing alarm circuit and a sound alarm circuit, wherein, the flashing alarm circuit is composed of a photoelectric coupler, an inverter, a bistable circuit, an NAND gate, a square wave oscillator, a test button, a flat light transfer button and a lighting character board. The sound alarm circuit is composed of a pulse memory circuit, a timed reset circuit, a start-up circuit, a square-wave generator, a buffer, a separated frequency oscillator, an amplifier and a sound output circuit. The utility model has the advantages of advanced circuits, small size, less investment, large signal capacity, high reliability, good versatility and can be widely used for the center signal alarm of transforming equipment.
Description
The utility model is relevant with the holding circuit device, and is especially relevant with the device that sends sound equipment and flashing signal when converting equipment has an accident.
The traditional generating plant and the central signal device of transformer station, adopting the electromagnetic type pulse relay is core, because the enabling pulse electric current is big, has limited the capacity of the repetitive operation of signal.The wiring complexity, the failure rate height, investment is big, and can not directly offer the interface of transformer station's micro computer monitoring or dispatch automated system.
The purpose of this utility model provides a kind of employing electronics integrated component, and volume is little, small investment, signal volume is big, reliability is high, the life-span is long, the central signal device of highly versatile.
The utility model is achieved in that
After signal enters photoelectrical coupler 1 from the X end, pulse memory 9 deactivation acoustics are delivered in one tunnel output, output low level is delivered to phase inverter 2 simultaneously, after phase inverter 2 is anti-phase, divide two-way to send, one the tunnel delivers to bistable circuit 3, the preparation that bistable circuit 3 is performed make alarm window 8 transfer zero diopter to, Sheffer stroke gate 4 is delivered on another road, the square wave frequency control that Sheffer stroke gate 4 another input end reciever wave oscillators 5 are sent, the output of Sheffer stroke gate 4 drives alarm window 8 flashes of light with square wave frequency, change zero diopter button 7 and can make bistable circuit 3 upset output low levels, alarm window 8 promptly transfers bright zero diopter to by flash of light, there is results button 6 to connect photoelectrical coupler 1, can make its conducting output low level, make alarm window 8 flashes of light, behind blackout, photoelectrical coupler 1 not conducting, this moment, photoelectrical coupler 1 output high level was delivered to phase inverter 2, output low level after phase inverter 2 is anti-phase, divide two-way to send, one the tunnel removes to trigger bistable circuit 3, make bistable circuit 3 output high level, Sheffer stroke gate 4 is delivered on another road, it is ended, Sheffer stroke gate 4 is also exported high level at this moment, alarm window 8 is extinguished, when signal after photoelectrical coupler 1 is delivered to pulse memory circuit 9, output high level one tunnel is delivered to regularly involution circuit 10, regularly involution circuit 10 startings, after about 20 seconds, automatically involution is original duty, and send feedback current simultaneously and deliver to pulse memory circuit 9, making the also automatic involution of pulse memory circuit is original duty, remove the action of whole acoustics, start-up circuit 11 is delivered on another road, 11 fens two-way of start-up circuit are sent signal, one the tunnel is transported to a midget relay, another road is transported to audio frequency oscillator 14,4 to 1 dutycycles that square-wave generator 12 produces, the square wave that cycle is about 1 second, the square wave that impact damper 13 is sent square-wave generator 12 here is shaped as triangular wave, and deliver to audio frequency oscillator 14, audio frequency is believed that signal is modulated into the signal with the triangular waveform fluctuations, but the starting of oscillation of audio frequency oscillator is subjected to start-up circuit 11 controls, and the sound signal after the modulation is delivered to amplifier 15, delivers to sound equipment output circuit 16 after amplifying, send the audio frequency aural signal of height fluctuations by loudspeaker, as trouble-signal, if with M, N short circuit, loudspeaker send interrupted sound equipment failure warning signal.
After marking current is sent here from the X end, deliver to 1 pin of photoelectrical coupler GD through current-limiting resistance R1, and deliver to the SY end of the pulse transformer of pulse memory 6, deactivation sound equipment simultaneously by 2 pin of GD.The 5 pin output low levels of photoelectrical coupler GD are delivered to the input end of phase inverter YF1 at this moment, signal is exported high level after YF1 is anti-phase, divide two-way to send, one road marking current is delivered to 2 pin of bistable circuit ic chip 1, because 2 pin of IC1 are high level, can not make the IC1 upset, so 7 pin of IC1 still keep the high level output of virgin state.Another road marking current is delivered to one of them input end of Sheffer stroke gate YF2.The square wave frequency marking current that another input end of Sheffer stroke gate YF2 is sent here by 2 pin of square wave oscillation IC2 is controlled.
Square-wave oscillator 5 is to be 4 to 1 by dutycycle, the hunting of frequency in about one week of per second in cycle.Be transported to the input end of Sheffer stroke gate YF2 by 3 pin of square-wave oscillator ic chip 2, go to control the output of Sheffer stroke gate YF2, when square wave is in high level, at this moment two of Sheffer stroke gate YF2 input ends all are high level, Sheffer stroke gate YF2 conducting, the output terminal output low level, the electric current of alarm window GB is from+15V electric current 3 pin through light-emitting diodes nest of tubes, internal resistance R, Sheffer stroke gate YF2, ic chip 2 so, 1 pin is got back to the OV power supply, and this moment, alarm window GB was just luminous.When square wave was in low level, Sheffer stroke gate YF2 ended, and alarm window GB extinguishes, and this has just realized that alarm window glistens with square wave frequency.
After personnel on duty see flash of light alarm window content clearly, click the PGA button, noble potential is delivered to 6 pin of ic chip 1, make ic chip 1 upset, the 7 pin output low levels of IC1 and keeping, at this moment electric current from+the 15V power supply is through 7 pin of alarm window GB to IC1,1 pin is got back to OV.This moment GB illuminated light of alarm window and not glistening.
After signal relief disappeared, photoelectrical coupler GD export high level, the anti-phase back of phase inverter YF1 output low level, and the branch two-way is sent, and one the tunnel delivers to Sheffer stroke gate YF2, YF2 is ended and exports high level.2 pin of ic chip 1 are delivered on another road, trigger the IC1 upset, and 7 pin of IC1 are also exported high level, so alarm window GB is obstructed not luminous because of the loop.
After pressing test button CDA ,+15V source current is through the contact of button CDA, and resistance flowing resistance R2, diode D1 deliver to 6 pin of photoelectrical coupler GD, and get back to OV from 4 pin.The triode conducting of photoelectrical coupler inside at this moment, the 5 pin output low levels of GD are delivered to the input end of phase inverter YF1, output high level after YF2 is anti-phase, following current flow path is duplicate with there being signal to send, consequently make alarm window GD flash of light, thereby reach the purpose of checking flasher ruuning situation.
Deliver to the primary coil SY end of pulse transformer MB through 2 pin of photoelectrical coupler GD when signal, produce a forward spike pulse through returning behind the primary coil on the secondary coil of negative pole signal this moment at MB, get back to the non-same polarity of MB secondary coil from end output of the same name, b, t pin, diode D3, the resistance R 3 of MB secondary coil through resistance R 7, triode R11.This moment triode BG1 the pulse of C pin output low level, deliver to 10 pin of ic chip 3, trigger ic chip 3 upsets, the 6 pin output high level of IC3 also keeps memorizing, this moment, the 6 pin high level of IC3 were sent through 12 fens two-way of resistance R:
1., one road electric current is through 14 pairs of regularly involution circuit C4 chargings of resistance R, after about 20 seconds, the positive terminal of C4 becomes high level and removes to trigger ic chip 5, make the IC5 upset, the 7 pin output low levels of IC5 are delivered on 5 pin of pulse memory ic chip 3, make the IC3 upset again, 6 pin of IC3 become low level output by high level, and acoustics is quit work.At this moment the electric charge of capacitor C 4 positive terminals is through diode D6,6 pin of resistance R 12, IC3, gets back to the OV rapid discharge from 7 pin of IC3, and making regularly, the involution circuit performs the preparation of next time working.
2., the capacitor C 3 of another road electric current in 13 pairs of start-up circuits 11 of resistance R charged after (with the misoperation of anti-device of a short time) in short-term, make 2,6 pin of start-up circuit ic chip 4 form high level triggering IC4 upset, the 3 pin output low level deactivation relay TZJ of IC4 start audio frequency oscillator 14 starting of oscillations simultaneously.
This moment, electric current was got back to OV from+15V power supply through the coil of light emitting diode GD1 and relay TZJ, 3,1 pin of IC4.The normal opened contact of TZJ after the startup can be used as micro computer monitoring or dispatching automation interface.Light emitting diode GD1 is luminous, and the expression acoustics starts.TZJ coil discharge when diode D5 is TZJ coil decompression is in order to avoid the energy of storing after the TZJ coil decompression damages ic chip 4.
3 pin of the ic chip 6 of square-wave generator 12 are the square wave output in about 1 second of dutycycle, cycle by 4 to 1 always, and deliver on resistance R 17 and the R18.
When 3 pin of IC6 were the low level of square wave, electric current was by+15V power supply 3 pin through light emitting diode GD2 and resistance R 17, IC6, and 1 pin is got back to OV, and this moment, light emitting diode GD was luminous.Diode GD2 no current passes through when 3 pin of IC6 are output as the high level of square wave, so not luminous.Monitor the duty of square-wave generator with light emitting diode GD2.
Square wave is through the output of 3 pin of ic chip 6, delivers to through resistance R 18 on 6 pin of triode BG3 of impact damper.The effect of impact damper is that square wave is shaped as continuous triangular wave.Its principle of work is such:
When 3 pin of IC6 sport the low level of square wave, because the voltage of capacitor C 6 can not suddenly change, so the b pin of triode BG3 is considered as being connected on power supply+15V, charging along with C6, the b pin current potential of BG3 reduces gradually, the e of BG3, electric current between the b pin increase gradually (electric current from+15V through resistance R 11, the e of BG3, the b pin, resistance R 18,3 pin of IC3,1 pin is got back to OV), make the e of BG3, electric current between the c pin also amplify gradually (electric current from+15V through R19, the e of BG3, the b pin, R20, R21 charges to C7), audio frequency oscillator promptly begins starting of oscillation from low frequency, along with N point voltage rising frequency also increases thereupon.
When 3 pin of IC6 sport the high level of square wave, because the electric charge on the capacitor C 6 can not suddenly disappear, positive terminal that can only be by C6, resistance R 19, the e of triode BG3, this loop discharge of negative pole that the b pin is got back to C6.Because e, the b pin of BG3 have electric current to pass through, and along with the discharge of C6 reduces gradually.Therefore, also there is amplified current to flow through between the e of BG3, c pin and minimizing gradually, that is to say that audio frequency oscillator also reduces oscillation frequency gradually.
When 3 pin of IC6 sport the low level of square wave again, repeat above process.
But whether starting of oscillation work of audio frequency oscillator then also is subjected to 3 foot control systems of start-up circuit ic chip 4.When 3 pin of IC4 were low level, 4,8 pin of power supply warp+15V, IC7,1 pin, 3 pin of IC4,1 pin were got back to OV, and audio frequency oscillator is started.At this moment 3 pin of IC7 output continuous and frequency by triangular modulation signal deliver on the coupling capacitance C8, deliver to the b pin of triode BG4 through resistance R 22, the electric current that has been amplified by BG4 from+24～220V through C, the e pin of the primary coil of sound equipment output transformer SCB and BG4 get back to OV, because the secondary coil of audio frequency output transformer SCB is connected to loudspeaker.At this moment loudspeaker send the frequency continually varying acoustic signal that just rises and falls, and notify the operator on duty.
After extraneous signal disappears, on the secondary coil of pulse transformer MB, produce a reverse spike pulse, from the non-same polarity output of MB, get back to the end of the same name of the secondary coil of pulse transformer MB through b, e pin, diode D2, the resistance R 7 of resistance R 8, triode BG2.This moment, the C pin output low level of triode went to trigger ic chip 3 upset, made 6 pin of IC3 return low level and kept memorizing.Whole acoustics is returned virgin state, and loudspeaker stop to send the sound equipment letter and ring.
The utility model adopts ic circuit to form.Simple in structure, power consumption is little, the life-span is long, semaphore is big, the reliability height, volume is little, reduced investment.The utility model is convenient to on-the-spot installation and replacing, highly versatile.
Fig. 1 is the utility model block scheme
Fig. 2 is the utility model flash alarm circuit figure
Fig. 3 is the utility model audible alarm circuit figure
Main element model and circuit:
GD is a photoelectrical coupler, uses 4N25
IC1 is a bistable circuit, uses NE555
IC2 is the square-wave oscillator circuit, uses NE555
YF1 is the Sheffer stroke gate phase inverter, uses H009
YF2 is a Sheffer stroke gate, uses H009
IC3 is a JK flip-flop, uses NO13N
IC4 is a monostable circuit, uses NE555
IC5 is a monostable circuit, uses NE555
IC6 is a square-wave oscillator, uses NE555
IC7 is an audio frequency oscillator, uses NE555
Claims (2)
1, central signal device, after it is characterized in that signal enters photoelectrical coupler 1 from the X end, pulse memory 9 deactivation acoustics are delivered in one tunnel output, output low level is delivered to phase inverter 2 simultaneously, after phase inverter 2 is anti-phase, divide two-way to send, one the tunnel delivers to bistable circuit 3, the preparation that bistable circuit 3 is performed make alarm window 8 transfer zero diopter to, Sheffer stroke gate 4 is delivered on another road, the square wave frequency control that Sheffer stroke gate 4 another input end reciever wave oscillators 5 are sent, the output of Sheffer stroke gate 4 drives alarm window 8 flashes of light with square wave frequency, change zero diopter button 7 and can make bistable circuit 3 upset output low levels, alarm window 8 promptly transfers bright zero diopter to by flash of light, there is results button 6 to connect photoelectrical coupler 1, can make its conducting output low level, make alarm window 8 flashes of light, behind blackout, photoelectrical coupler 1 not conducting, this moment, photoelectrical coupler 1 output high level was delivered to phase inverter 2, output low level after phase inverter 2 is anti-phase, divide two-way to send, one the tunnel removes to trigger bistable circuit 3, make bistable circuit 3 output high level, Sheffer stroke gate 4 is delivered on another road, it is ended, Sheffer stroke gate 4 is also exported high level at this moment, alarm window 8 is extinguished, when signal after photoelectrical coupler 1 is delivered to pulse memory circuit 9, output high level one tunnel is delivered to regularly involution circuit 10, regularly involution circuit 10 startings, after about 20 seconds kinds, automatically involution is original duty, and send feedback current simultaneously and deliver to pulse memory circuit 9, making the also automatic involution of pulse memory circuit is original duty, remove the action of whole acoustics, start-up circuit 11 is delivered on another road, 11 fens two-way of start-up circuit are sent signal, one the tunnel is transported to a midget relay, another road is transported to audio frequency oscillator 14,4 to 1 dutycycles that square-wave generator 12 produces, the square wave that cycle is about 1 second, the square wave that impact damper 13 is sent square-wave generator 12 here is shaped as triangular wave, and deliver to audio frequency oscillator 14, audio frequency is believed that signal is modulated into the signal with the triangular waveform fluctuations, but the starting of oscillation of audio frequency oscillator is subjected to start-up circuit 11 controls, sound signal after the modulation is delivered to amplifier 15, after amplifying, deliver to sound equipment output circuit 16, send the audio frequency aural signal of height fluctuations by loudspeaker, as trouble-signal, if with M, N short circuit, loudspeaker send interrupted sound equipment failure warning signal.
2; central signal device according to claim 1 is characterized in that photoelectrical coupler 1 is made up of current-limiting resistance R1 and integrated package GD, and R1 one termination is held from signal source X; 1 pin of another termination GD, 2 pin of GD connect the pulse transformer SY end of pulse memory 9, and 5 pin of GD connect the input end of phase inverter YF1; the 4 pin ground connection of GD, 6 pin of GD are received on the negative pole end of the diode D1 in the test button 6, and bistable circuit 3 is by biasing resistor R3; R4 and ic chip 1 are formed R3 one termination+15V power supply, 2 pin of another termination IC1; one of them input end of Sheffer stroke gate YF2, on the output terminal of phase inverter YF1, one of resistance R 4 terminates on 6 pin of button PGA and IC1; other end ground connection, 4 of ic chip; 8 pin connect+the 15V power supply, 1 pin ground connection; 7 pin are output terminal, are connected on the interior resistance R of the output terminal of YF2 and alarm window GB biasing resistor R3; R4 is the following of IC1; below-center offset resistance; for IC1 provides bias voltage, 7 pin original states of ic chip 1 are the output high level, when 6 pin of IC1 are high level; the IC1 upset; 7 pin output low levels, when 2 pin of IC1 are low level, the IC1 upset; 7 pin output high level; resistance R 5; R6, capacitor C 1, ic chip 2 is formed square-wave oscillator; 3 pin of IC2 connect another input end of YF2; test button 6 one terminates at+the 15V power supply on, another termination current-limiting resistance R2 changes zero diopter button 7 one terminations+15V power supply; 6 pin of another termination ic chip 1 and resistance R 4; alarm window one termination+15V power supply, the output terminal of another termination Sheffer stroke gate YF2 and 7 pin of ic chip 1, the pulse memory circuit is by pulse transformer MB; current-limiting resistance R7; R8, pulse paths diode D2, D3; switch triode BG1; BG2, collector resistance R9, R10; ic chip 3; the decoupling resistance R11 of IC3, decoupling capacitance C2, output current limiting resistance R 12 is formed; 2 pin of the primary coil Sy termination photoelectrical coupler of pulse transformer MB; another termination signal negative supply is on the positive output termination current-limiting resistance R7 of the secondary coil of MB, on the base stage of another termination BG1 of R7 and the negative pole end of diode D2; on the base stage of another output termination BG2 of MB and the negative pole end of diode D3; triode BG1, the e pin of BG2 and diode D2, the plus earth of D3; resistance R 9 one terminates at+the 15V power supply on; the other end is connected on 10 pin of the collector of BG1 and ic chip 3, one of resistance R 10 terminates at+the 15V power supply on, the other end is connected on 7 pin of 5 pin of the collector of triode BG2 and ic chip 3 and IC5; decoupling resistance R11 one terminates at+the 15V power supply on; the other end is connected on decoupling capacitance C2's+14 pin of the utmost point and ic chip 3 on, the negative pole end ground connection of C2,7 pin ground connection of ic chip 3; 6 pin of IC3 are output terminal; connecting resistance R12, regularly involution circuit 10 is by resistance R 14, capacitor C 4; back discharge diode D6; ic chip 5 is formed R14 one termination R12, resistance R 13; diode D4; the negative pole end of D6, the other end of R14 are connected on 2 of the positive terminal of capacitor C 4 and ic chip 5; on 6 pin, 4 of IC5; 8 pin connect+the 15V power supply; the 1 pin ground connection of IC5,7 pin of IC5 are output terminal, are connected on 5 pin and R10 of the C pin of triode BG2 and IC3; start-up circuit is by resistance R 13; back discharge diode D4, charging capacitor C3, ic chip 4; monitor and use light emitting diode GD1; relay TZJ, protection discharge diode D5 forms R13 one termination R12; the negative pole end of diode D4; also receive simultaneously the negative pole end of R14 and D6, the anode of another termination of R13 D4,2 of charging capacitor C3 and ic chip 4; on 6 pin; 1 pin of IC4 and capacitor C 3 other end ground connection; 4,8 pin of IC4 connect+the 15V power supply, TZJ two termination discharge diode D5; 3 pin of the anodal termination IC4 of D5; the negative pole end of negative pole termination GD1, square-wave generator is by resistance R 15, R16; capacitor C 5; ic chip 6, current-limiting resistance R17, R18 and light emitting diode GD2 form; resistance R 15 1 terminates at+the 15V power supply on; the other end is connected on 7 pin of resistance R 16 and ic chip 6,2 of another termination IC6 of R16; the positive terminal of 6 pin and capacitor C 5, the negative pole end ground connection of C5; 4 of IC6; 8 pin connect+the 15V power supply, the 1 pin ground connection of IC6, the 3 pin connecting resistance R17 of IC6; R18; the negative pole of R17 other end sending and receiving optical diode GD2, the positive pole of GD2 connects+the 15V power supply, the negative pole of another termination capacitor C 6 of R18 and the base stage of triode BG3; impact damper 13 is by electrochemical capacitor C6; triode BG3 and resistance R 19 are formed, and capacitor C 6 positive poles connect+the 15V power supply, and negative pole connects base stage and the resistance R 18 of triode BG3; resistance R 19 1 terminations+15V power supply; the emitter of another termination triode BG3, the collector connecting resistance R20 of BG3, audio frequency oscillator 14 is by resistance R 20; R21; capacitor C 7 and ic chip 7 are formed 7 pin of resistance R 20 another termination R21 and IC7,2 of resistance 21 another termination capacitor C 7 and ic chip 7; 6 pin; one end ground connection of capacitor C 7; 4,8 pin of IC7 connect+the 15V power supply, and 1 pin of IC7 connects 3 pin that start ic chip 4; 3 pin of IC7 connect the positive terminal of coupling capacitance C8; amplifier is by coupling capacitance C8, current-limiting resistance R22, and triode BG4 forms; on output terminal 3 pin of capacitor C 8 anodal termination audio frequency oscillator IC7; negative pole is received on the resistance R 22, the base stage of another termination triode of R22 BG4, the grounded emitter of BG4; the collector of BG4 connects the primary coil of sound equipment output transformer SCB, and the secondary coil of SCB meets loudspeaker Y S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238300 CN2155572Y (en) | 1993-03-12 | 1993-03-12 | Central signal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238300 CN2155572Y (en) | 1993-03-12 | 1993-03-12 | Central signal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2155572Y true CN2155572Y (en) | 1994-02-09 |
Family
ID=33813063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93238300 Expired - Fee Related CN2155572Y (en) | 1993-03-12 | 1993-03-12 | Central signal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2155572Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314761A (en) * | 2010-07-05 | 2012-01-11 | 亿尚精密工业股份有限公司 | Signal transmission circuit |
| CN104251967A (en) * | 2014-09-01 | 2014-12-31 | 陕西欧瑞特电气有限公司 | Novel central signal device |
-
1993
- 1993-03-12 CN CN 93238300 patent/CN2155572Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314761A (en) * | 2010-07-05 | 2012-01-11 | 亿尚精密工业股份有限公司 | Signal transmission circuit |
| CN104251967A (en) * | 2014-09-01 | 2014-12-31 | 陕西欧瑞特电气有限公司 | Novel central signal device |
| CN104251967B (en) * | 2014-09-01 | 2017-10-03 | 陕西欧瑞特电气有限公司 | A kind of novel central recoil simulator |
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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 |