CN204965669U - Fire -proof alarm circuit - Google Patents
Fire -proof alarm circuit Download PDFInfo
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- CN204965669U CN204965669U CN201520586762.4U CN201520586762U CN204965669U CN 204965669 U CN204965669 U CN 204965669U CN 201520586762 U CN201520586762 U CN 201520586762U CN 204965669 U CN204965669 U CN 204965669U
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Abstract
The utility model provides a fire -proof alarm circuit, whole circuit be by the triplex, and the branch maybe sensor circuit, single -chip control circuit and alarm circuit, the signal input singlechip that sensor circuit detected, the signal of singlechip output is reported to the police through the alarm circuit, and the emitting diode who corresponds the branch road simultaneously is luminous, sensor circuit part has the three routes to detect, and the branch maybe the smog sensing, temperature sensing and photoelectricity sensing, single -chip control circuit includes oscillation starting circuit, reset circuit and input -output ports, warning circuit has redness, yellow and blue emitting diode luminous, and emitting diode is used for the instruction of signal, and the three shares loudspeaker and produces audible alarm.
Description
Technical field
The utility model relates to a kind of fire-proof alarm circuit, is mainly used in the fire detection of chamber interior, belongs to indoor intelligent control technology category.
Background technology
At present, the ground occasional breaking out of fires such as institute are produced in family or office, and the reason caused is a lot, and such as aging circuit, forgets light gas range etc.Once fire occurs, often burn indoor article even flood entire building room, some also causes life danger, so it is most important to prevent fires.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of fire-proof alarm circuit, this fireproof alarming circuit can according to detecting its smog, temperature and light electricity aspect when catching fire, once exceed its ratings, then report to the police, warning owner or staff's breaking out of fire, thus avoid dangerous generation.
For reaching above-mentioned purpose, a kind of fire-proof alarm circuit of the utility model, comprises sensor circuit, single chip machine controlling circuit and alarm circuit; The signal input single-chip microcomputer that sensor circuit detects, the signal that single-chip microcomputer exports is reported to the police through alarm circuit, simultaneously the lumination of light emitting diode of corresponding branch road; Sensor circuit part has three tunnels to detect, and is smog sensing respectively, temperature sensing and photoelectric sensing; Single chip machine controlling circuit comprises start-oscillation circuit, reset circuit and input/output port; Warning circuit has redness, yellow and blue LED luminous, and light emitting diode is used for the instruction of signal, and three shares loudspeaker and produces audible alarm;
Sensor circuit is centered by amplifier LM358AM, comprise smog sensing circuit, temperature sensing circuit and photoelectric sensing circuit, in smog sensing circuit, 4 pin of amplifier U1A meet power supply VCC1,8 pin ground connection GND1, and 2 pin and 3 pin meet smoke transducer MK1,1 pin is signal output part, is connected to 21 pin of single-chip microcomputer; In temperature sensing circuit, 4 pin of amplifier U2A meet power supply VCC2,8 pin ground connection GND2,2 pin and 3 pin jointing temp sensor MK2, and 1 pin is signal output part, is connected to 22 pin of single-chip microcomputer; In photoelectric sensing circuit, 4 pin of amplifier U3A meet power supply VCC3,8 pin ground connection GND3, and 2 pin and 3 pin meet photoelectric sensor MK3, and 1 pin is signal output part, are connected to 23 pin of single-chip microcomputer;
Single chip machine controlling circuit comprises the 51 series monolithic U1 that model is P89C51X2BN, a branch road of its 9 pin connects the resistance R1 of 10K, resistance R1 meets No. 2 ground end GND2, the electric capacity C3 of another branch road 10uF, also have a branch road connecting valve S1, three is in parallel, is eventually connected to the power supply VCC2 of+5V, form reset circuit, play the effect of reset; 18,19 pin of single-chip microcomputer U1 connect electric capacity C1, C2 of 30pF respectively, between be connected with the crystal oscillator Y1 of 12MHz, be then connected to ground No. 3 ground end GND3, form start-oscillation circuit, single-chip microcomputer U1 is played to the effect of starting of oscillation, ensure that starting working of single-chip microcomputer; 40 pin meet power supply VCC1, and 20 pin meet No. 1 ground end GND1, and power supply plays the effect of power supply to single-chip microcomputer U1; 1,2,3 pin of single-chip microcomputer U1 connect the output pin of the amplifier LM324AD in sensor circuit respectively, namely 1 pin of single-chip microcomputer U1 is connected with 1 pin of amplifier U1A, 2 pin of single-chip microcomputer U1 are connected with 1 pin of amplifier U2A, and 3 pin of single-chip microcomputer U1 are connected with 1 pin of amplifier U3A; 21,22,23 pin of single-chip microcomputer U1 are connected to the input end of warning circuit; The control circuit of single-chip microcomputer U1 is made according to the situation of input signal and is provided signal to warning circuit and carry out control operation.
Warning circuit physical circuit connects: the output signal coming from single-chip microcomputer U11 pin connects Article 1 branch road, and Article 1 branch road is that the resistance R1 of 510 ohm is connected with red light emitting diodes; The output signal coming from single-chip microcomputer U12 pin connects Article 2 branch road, and Article 2 branch road is that the resistance R2 of 510 ohm is connected with yellow light-emitting diode; The output signal coming from single-chip microcomputer U13 pin connects Article 3 branch road, and Article 3 branch road is that the resistance R3 of 510 ohm is connected with blue LED; Article three, after branch circuit parallel connection again through the base stage of triode 2N3904, the collector of triode 2N3904 connects+5V power supply VCC1, and emitter connects the resistance R4 of 510 ohm, and resistance R4 is ground connection No. 9 ground end GND1 again, and emitter connects the electric capacity C1 of 100uf simultaneously.A branch road of electric capacity C1 connects the loudspeaker Speaker of 8 ohm, No. 8, another termination ground end GND2 of loudspeaker Speaker.
The utility model fire-proof alarm circuit difference from prior art is that the utility model achieves following technique effect:
After the utility model circuit working, once smog detected, signal that temperature and light electric transducer sends, the bright and sound horn of light emitting diode corresponding in warning circuit is reported to the police
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 a, 1b and 1c are respectively smoke transducer, temperature sensor and photoelectric sensor sensor circuit figure; In figure, MK1: smoke transducer; MK2: temperature sensor; MK3: photoelectric sensor; U1A, U2A, U3A (LM358AM): amplifier; The power supply of VCC1, VCC2, VCC3:+5V; GND1, GND2, GND3: ground end.
Fig. 2 is single chip machine controlling circuit; In figure, U1 (P89C51X2BN): single-chip microcomputer; The crystal oscillator of Y1:12M; S1: switch; The power supply of VCC1, VCC2:+5V; GND1, GND2, GND3: ground end.
Fig. 3 is warning circuit figure; In figure, D1 (LED1): red light emitting diodes; D2 (LED2): yellow light-emitting diode; D3 (LED3): blue LED; 2N3904:NPN type triode; R1, R2, R3, R4:510 Ohmage; Speaker: loudspeaker; The power supply of VCC1:+5V; GND1, GND2: ground end.
Embodiment
Below in conjunction with drawings and Examples, to above-mentioned being described in more detail with other technical characteristic and advantage of the utility model.
A kind of fire-proof alarm circuit of the utility model, is characterized in that: comprise sensor circuit, single chip machine controlling circuit and alarm circuit; The signal input single-chip microcomputer that sensor circuit detects, the signal that single-chip microcomputer exports is reported to the police through alarm circuit, simultaneously the lumination of light emitting diode of corresponding branch road; Sensor circuit part has three tunnels to detect, and is smog sensing respectively, temperature sensing and photoelectric sensing; Single chip machine controlling circuit comprises start-oscillation circuit, reset circuit and input/output port; Warning circuit has redness, yellow and blue LED luminous, and light emitting diode is used for the instruction of signal, and three shares loudspeaker and produces audible alarm;
Fig. 1 a, 1b and 1c are the sensor circuit being respectively smoke transducer, temperature sensor and photoelectric sensor, sensor circuit is centered by amplifier LM358AM, in first sensor map, 4 pin of amplifier meet power supply VCC1,8 pin ground connection GND1,2 pin and 3 pin meet sensor MK1, and sensor MK1 is smoke transducer, 1 pin is signal output part, is connected to 21 pin of single-chip microcomputer.In second sensor map, 4 pin of amplifier meet power supply VCC2,8 pin ground connection GND2, and 2 pin and 3 pin meet sensor MK2, and sensor MK2 is temperature sensor, and 1 pin is signal output part, are connected to 22 pin of single-chip microcomputer.In 3rd sensor map, 4 pin of amplifier meet power supply VCC3,8 pin ground connection GND3, and 2 pin and 3 pin meet sensor MK3, and sensor MK1 is photoelectric sensor, and 1 pin is signal output part, are connected to 23 pin of single-chip microcomputer.This circuit is mainly used in checking smog, temperature, photoelectricity, once be checked through abnormal, the signal that sensor spreads out of amplifies through amplifier LM358AM, is then sent in single-chip microcomputer by signal.
Fig. 2 is single chip machine controlling circuit, this circuit take model as the 51 series monolithic U1 of P89C51X2BN is core, a branch road of 9 pin connects the resistance R1 of 10K, resistance R1 meets No. 2 ground end GND2, the electric capacity C3 of another branch road 10uF, also has a branch road connecting valve S1, three is in parallel, eventually be connected to the power supply VCC2 of+5V, this part is reset circuit, plays the effect of reset.18,19 pin of single-chip microcomputer U1 connect electric capacity C1, C2 of 30pF respectively, between be connected with the crystal oscillator Y1 of 12MHz, be then connected to ground No. 3 ground end GND3, this part is start-oscillation circuit, single-chip microcomputer U1 is played to the effect of starting of oscillation, ensure that starting working of single-chip microcomputer.40 pin meet power supply VCC1, and 20 pin meet No. 1 ground end GND1, and power supply plays the effect of power supply to single-chip microcomputer U1.1,2,3 pin of single-chip microcomputer U1 connect the output pin of the amplifier LM324AD in sensor circuit respectively, namely 1 pin of single-chip microcomputer is connected with 1 pin of amplifier U1A, 2 pin of single-chip microcomputer are connected with 1 pin of amplifier U2A, and 3 pin of single-chip microcomputer are connected with 1 pin of amplifier U3A.21,22,23 pin of single-chip microcomputer U1 are connected to the input end of warning circuit.The control circuit of single-chip microcomputer is made according to the situation of input signal and is provided signal to warning circuit and carry out control operation.
Fig. 3 is warning circuit.The output signal coming from single-chip microcomputer 1 pin connects Article 1 branch road, and Article 1 branch road is that the resistance R1 of 510 ohm is connected with red light emitting diodes.The output signal coming from single-chip microcomputer 2 pin connects Article 2 branch road, and Article 2 branch road is that the resistance R2 of 510 ohm is connected with yellow light-emitting diode.The output signal coming from single-chip microcomputer 3 pin connects Article 3 branch road, and Article 3 branch road is that the resistance R3 of 510 ohm is connected with blue LED.Article three, after branch circuit parallel connection again through the base stage of triode 2N3904, the collector of triode 2N3904 connects+5V power supply VCC1, and emitter connects the resistance R4 of 510 ohm, and resistance R4 is ground connection No. 9 ground end GND1 again, and emitter connects the electric capacity C1 of 100uf simultaneously.A branch road of electric capacity C1 connects the loudspeaker Speaker of 8 ohm, No. 8, another termination ground end GND2 of loudspeaker Speaker.
Embodiment 1
Switch S 1 is closed, and this fire-proof alarm circuit enters duty.When smoke transducer MK1 detects smog time, will there is signal in sensor MK1, and then the signal sent enters the 21st pin of single-chip microcomputer U1 after amplifier LM358AM.Then 1 human hair combing waste of single-chip microcomputer U1 goes out the Article 1 branch road of signal through warning circuit, and the red diode on Article 1 branch road is bright, and loudspeaker send chimes of doom.
Embodiment 2
When temperature sensor MK2 detects smog, will there is signal in sensor MK2, and then the signal sent enters the 22nd pin of single-chip microcomputer U1 after amplifier LM358AM.Then 2 human hair combing wastes of single-chip microcomputer U1 go out the Article 2 branch road of signal through warning circuit, and the yellow diode on Article 2 branch road is bright, and loudspeaker send chimes of doom.
Embodiment 3.
When smoke transducer MK3 detects that tire pressure is abnormal, will there is signal in sensor MK3, and then the signal sent enters the 23rd pin of single-chip microcomputer U1 after amplifier LM358AM.Then 3 human hair combing wastes of single-chip microcomputer U1 go out the Article 3 branch road of signal through warning circuit, and the blue diode on Article 3 branch road is bright, and loudspeaker send chimes of doom.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (1)
1. a fire-proof alarm circuit, is characterized in that: comprise sensor circuit, single chip machine controlling circuit and alarm circuit; The signal input single-chip microcomputer that sensor circuit detects, the signal that single-chip microcomputer exports is reported to the police through alarm circuit, simultaneously the lumination of light emitting diode of corresponding branch road; Sensor circuit part has three tunnels to detect, and is smog sensing respectively, temperature sensing and photoelectric sensing; Single chip machine controlling circuit comprises start-oscillation circuit, reset circuit and input/output port; Warning circuit has redness, yellow and blue LED luminous, and light emitting diode is used for the instruction of signal, and three shares loudspeaker and produces audible alarm; Sensor circuit is centered by amplifier LM358AM, comprise smog sensing circuit, temperature sensing circuit and photoelectric sensing circuit, in smog sensing circuit, 4 pin of amplifier U1A meet power supply VCC1,8 pin ground connection GND1, and 2 pin and 3 pin meet smoke transducer MK1,1 pin is signal output part, is connected to 21 pin of single-chip microcomputer; In temperature sensing circuit, 4 pin of amplifier U2A meet power supply VCC2,8 pin ground connection GND2,2 pin and 3 pin jointing temp sensor MK2, and 1 pin is signal output part, is connected to 22 pin of single-chip microcomputer; In photoelectric sensing circuit, 4 pin of amplifier U3A meet power supply VCC3,8 pin ground connection GND3, and 2 pin and 3 pin meet photoelectric sensor MK3, and 1 pin is signal output part, are connected to 23 pin of single-chip microcomputer; Single chip machine controlling circuit comprises the 51 series monolithic U1 that model is P89C51X2BN, a branch road of its 9 pin connects the resistance R1 of 10K, resistance R1 meets No. 2 ground end GND2, the electric capacity C3 of another branch road 10uF, also have a branch road connecting valve S1, three is in parallel, is eventually connected to the power supply VCC2 of+5V, form reset circuit, play the effect of reset; 18,19 pin of single-chip microcomputer U1 connect electric capacity C1, C2 of 30pF respectively, between be connected with the crystal oscillator Y1 of 12MHz, be then connected to ground No. 3 ground end GND3, form start-oscillation circuit, single-chip microcomputer U1 is played to the effect of starting of oscillation, ensure that starting working of single-chip microcomputer; 40 pin meet power supply VCC1, and 20 pin meet No. 1 ground end GND1, and power supply plays the effect of power supply to single-chip microcomputer U1; 1,2,3 pin of single-chip microcomputer U1 connect the output pin of the amplifier LM324AD in sensor circuit respectively, namely 1 pin of single-chip microcomputer U1 is connected with 1 pin of amplifier U1A, 2 pin of single-chip microcomputer U1 are connected with 1 pin of amplifier U2A, and 3 pin of single-chip microcomputer U1 are connected with 1 pin of amplifier U3A; 21,22,23 pin of single-chip microcomputer U1 are connected to the input end of warning circuit; The control circuit of single-chip microcomputer U1 is made according to the situation of input signal and is provided signal to warning circuit and carry out control operation, warning circuit physical circuit connects: the output signal coming from single-chip microcomputer U11 pin connects Article 1 branch road, and Article 1 branch road is that the resistance R1 of 510 ohm is connected with red light emitting diodes; The output signal coming from single-chip microcomputer U12 pin connects Article 2 branch road, and Article 2 branch road is that the resistance R2 of 510 ohm is connected with yellow light-emitting diode; The output signal coming from single-chip microcomputer U13 pin connects Article 3 branch road, and Article 3 branch road is that the resistance R3 of 510 ohm is connected with blue LED; Article three, after branch circuit parallel connection again through the base stage of triode 2N3904, the collector of triode 2N3904 connects+5V power supply VCC1, and emitter connects the resistance R4 of 510 ohm, and resistance R4 is ground connection No. 9 ground end GND1 again, and emitter connects the electric capacity C1 of 100uf simultaneously; A branch road of electric capacity C1 connects the loudspeaker Speaker of 8 ohm, No. 8, another termination ground end GND2 of loudspeaker Speaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586762.4U CN204965669U (en) | 2015-08-07 | 2015-08-07 | Fire -proof alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586762.4U CN204965669U (en) | 2015-08-07 | 2015-08-07 | Fire -proof alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204965669U true CN204965669U (en) | 2016-01-13 |
Family
ID=55060719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520586762.4U Expired - Fee Related CN204965669U (en) | 2015-08-07 | 2015-08-07 | Fire -proof alarm circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204965669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741568A (en) * | 2019-03-23 | 2019-05-10 | 汝州神盾众安实业有限公司 | A kind of photo-electric smog sensor alarm |
-
2015
- 2015-08-07 CN CN201520586762.4U patent/CN204965669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741568A (en) * | 2019-03-23 | 2019-05-10 | 汝州神盾众安实业有限公司 | A kind of photo-electric smog sensor alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20180807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |