CN205318566U - Computer fireproof alarm circuit - Google Patents
Computer fireproof alarm circuit Download PDFInfo
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- CN205318566U CN205318566U CN201521104187.6U CN201521104187U CN205318566U CN 205318566 U CN205318566 U CN 205318566U CN 201521104187 U CN201521104187 U CN 201521104187U CN 205318566 U CN205318566 U CN 205318566U
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Abstract
The utility model provides a computer fireproof alarm circuit, whole circuit is by the triplex, divide the detection circuit that to carry torches, single -chip control circuit and warning circuit, amplifier circuit and analog signal that naked light detection circuit contains analog signal convert the data signal circuit to, single -chip control circuit includes the oscillation starting circuit, reset circuit and to incoming signal and input signal control, warning circuit is audion and loudspeaker as follows mainly, loudspeaker produce audible alarm, the signal input singlechip that naked light detection circuit detected, the signal of singlechip output is reported to the police through the alarm circuit, this computer fireproof alarm circuit just can survey through the naked light and report to the police, the warning loudspeaker can be arranged in the position that night shift room or comparison are showing, can warn the place that the conflagration is taken place to owner or staff like this, thereby can save bigger economic loss.
Description
Technical field
This utility model relates to a kind of computer fire-proof alarm circuit, and be mainly used in computer is caught fire detection, belongs to control with computational intelligence technology category.
Background technology
At present, some computer-internal or periphery often catch fire, and cause the reason caught fire a lot, and such as aging circuit, current/voltage is excessive. Once fire occurs, what burn is not only a computer, can also is that whole room or a building sometimes, thus the fire prevention of computer is most important.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of computer fireproof alarming circuit, this computer fireproof alarming circuit just can pass through naked light detection and report to the police, alarming horn can be arranged in night shift room or the significant position of comparison, so can warn the place of owner or staff's breaking out of fire, such that it is able to save bigger economic loss.
For reaching above-mentioned purpose, this utility model one computer fireproof alarming circuit, it includes naked light detection circuit, single chip machine controlling circuit and warning circuit;
Described naked light detection circuit is specifically connected as: this circuit is centered by amplifier LM324AD and modulus conversion chip ADC0809CCN, naked light detection sensor MK1 one end connects the power supply VCC1 of+5V, the other end connects earth terminal GND1, the resistance R2 of the adjustable resistance R1 and a 51K of a 10K is connected between power supply VCC1 and ground end GND1, resistance R3 one end of 10K connects the resistance R2 of an adjustable resistance R1 and 51K, the other end connects positive terminal 3 foot of amplifier LM324AD, negative pole end 2 foot of amplifier LM324AD meets switch S1, switch S1 earth terminal GND1, 4 feet of amplifier LM324AD meet power supply VCC2, 8 foot ground connection GND2, 1 foot is analog signal output, it is connected to 26 feet of modulus conversion chip ADC0809CCN, 10 feet of modulus conversion chip ADC0809CCN connect the clock signal of 500KHz, for starting of oscillation, 6 feet of modulus conversion chip ADC0809CCN, 11 feet, 12 feet and 22 feet connect power supply VCC4, 23 feet, 24 feet and 25 feet connect three identical 10K resistance R21 respectively, R22 and R23, three resistance are connected to the power supply VCC3 of+5V more together, the 3 foot earth terminal GND3 of modulus conversion chip ADC0809CCN, 16 foot earth terminal GND4, 17 feet are the outfan of ADC signal,
Described single chip machine controlling circuit is specifically connected as: this circuit with model be P89C51X2BN 51 series monolithic U1 for core, one branch road of 9 feet connects the resistance R1 of 10K, resistance R1 meets No. 2 ground end GND2, the electric capacity C3 of another branch road 10uF, also having a branch road connecting valve S1, three is in parallel, is eventually connected to the power supply VCC2 of+5V, this part is reset circuit, plays the effect of reset; The 18 of single-chip microcomputer U1,19 feet connect electric capacity C1, C2 of 30pF respectively, between be connected with the crystal oscillator Y1 of 12MHZ, be then attached to ground No. 3 ground end GND3, this part is start-oscillation circuit, and single-chip microcomputer U1 plays the effect of starting of oscillation, it is ensured that starting working of single-chip microcomputer; 40 feet meet power supply VCC1, and 20 feet meet No. 1 ground end GND1, and single-chip microcomputer U1 is played the effect of power supply by power supply; 1 foot of single-chip microcomputer U1 connects 17 feet of naked light detection circuit, i.e. ADC outfan respectively, and 21 feet of single-chip microcomputer U1 are connected to the input of warning circuit, and the control circuit of single-chip microcomputer is made according to the situation of input signal and warning circuit provided signal and is controlled operation;
Described warning circuit is specifically connected as: the output signal coming from single-chip microcomputer 21 foot is connected to the base stage of audion 2N3904, the colelctor electrode of audion 2N3904 connects the positive pole of+3V power supply Battery, the negative pole of emitter stage even+3V power supply Battery, connecting the loudspeaker Speaker of 8 ohm between the collector and emitter of audion 2N3904, loudspeaker Speaker is used for reporting to the police.
This utility model difference from prior art is in that this utility model achieves following technique effect:
After the work of this utility model circuit, once detect naked light, naked light converts digital signal to after analogue signal is amplified, and digital signal is reported to the police by the sound horn in warning circuit after Single-chip Controlling.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is naked light detection circuit diagram, in figure, and MK1: open flame detector; U1A (LM324AD): amplifier; The adjustable resistance of R1:10K; The resistance of R2:51K; The resistance of R3:10K; S1: switch; The power supply of VCC1, VCC2, VCC3, VCC4:+5V; GND1, GND2, GND3, GND4: ground end. U2 (ADC0809CCN): modulus conversion chip; The resistance of R21, R22, R23:10K.
Fig. 2 is single chip machine controlling circuit, in figure, and U1 (P89C51X2BN): single-chip microcomputer; The crystal oscillator of Y1:12M; S1: switch; The electric capacity of C1, C2:30pF; The electric capacity of C3:10uF; S1: switch; The power supply of VCC1, VCC2:+5V; GND1, GND2, GND3: ground end.
Fig. 3 is in warning circuit figure, figure, Q1 (2N3904): NPN type triode; Speaker: loudspeaker; The power supply of Battery:+3V; GND: ground end.
Detailed description of the invention
Below in conjunction with drawings and Examples, to this utility model, above-mentioned and other technical characteristic and advantage are described in more detail.
As Figure 1-3, this utility model one computer fireproof alarming circuit, it includes naked light detection circuit, single chip machine controlling circuit and warning circuit;
Fig. 1 is naked light detection circuit, and this circuit is centered by amplifier LM324AD and modulus conversion chip ADC0809CCN. Naked light detection sensor MK1 one end connects the power supply VCC1 of+5V, and the other end connects earth terminal GND1. The resistance R2 of the adjustable resistance R1 and a 51K of a 10K is connected between power supply VCC1 and ground end GND1.Resistance R3 one end of 10K connects the resistance R2 of an adjustable resistance R1 and 51K, and the other end connects positive terminal 3 foot of amplifier LM324AD. Negative pole end 2 foot of amplifier LM324AD meets switch S1, switchs S1 earth terminal GND1. 4 feet of amplifier LM324AD meet power supply VCC2,8 foot ground connection GND2, and 1 foot is analog signal output, is connected to 26 feet of modulus conversion chip ADC0809CCN. 10 feet of modulus conversion chip ADC0809CCN connect the clock signal of 500KHz, for starting of oscillation. 6 feet of modulus conversion chip ADC0809CCN, 11 feet, 12 feet and 22 feet connect power supply VCC4, and 23 feet, 24 feet and 25 feet connect three identical 10K resistance R21, R22 and R23 respectively, and three resistance are connected to the power supply VCC3 of+5V more together. The 3 foot earth terminal GND3 of modulus conversion chip ADC0809CCN, 16 foot earth terminal GND4,17 feet are the outfan of ADC signal.
Fig. 2 is single chip machine controlling circuit, this circuit with model be P89C51X2BN 51 series monolithic U1 for core, one branch road of 9 feet 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 being connected to the power supply VCC2 of+5V, this part is reset circuit, plays the effect of reset. The 18 of single-chip microcomputer U1,19 feet connect electric capacity C1, C2 of 30pF respectively, between be connected with the crystal oscillator Y1 of 12MHZ, be then attached to ground No. 3 ground end GND3, this part is start-oscillation circuit, and single-chip microcomputer U1 plays the effect of starting of oscillation, it is ensured that starting working of single-chip microcomputer. 40 feet meet power supply VCC1, and 20 feet meet No. 1 ground end GND1, and single-chip microcomputer U1 is played the effect of power supply by power supply. 1 foot of single-chip microcomputer U1 connects 17 feet of naked light detection circuit, i.e. ADC outfan respectively. 21 feet of single-chip microcomputer U1 are connected to the input of warning circuit. The control circuit of single-chip microcomputer is made according to the situation of input signal and warning circuit is provided signal and is controlled operation.
Fig. 3 is warning circuit. The output signal coming from single-chip microcomputer 21 foot is connected to the base stage of audion 2N3904, and the colelctor electrode of audion 2N3904 connects the positive pole of+3V power supply Battery, the negative pole of emitter stage even+3V power supply Battery. Connecting the loudspeaker Speaker of 8 ohm between the collector and emitter of audion 2N3904, loudspeaker Speaker is used for reporting to the police.
Embodiment 1
Switch S1 closes, and this naked light detection circuit enters duty. When open flame detector MK1 detects naked light time, will there is signal in open flame detector MK1, and the signal sent amplifies through amplifier LM324AD, and the signal after amplification is through 26 feet of modulus conversion chip ADC0809CCN. Modulus conversion chip ADC0809CCN exports after passing through 17 feet after converting analog signals into digital signal, and 1 foot of the 17 foot signals of output single-chip microcomputer U1, single-chip microcomputer U1 in single chip machine controlling circuit is its input. 21 feet of single-chip microcomputer U1 are output signal, and output signal is then through the audion 2N3904 of warning circuit, and under the effect of audion 2N3904, loudspeaker Speaker sends chimes of doom.
Embodiment 2
Switch S1 closes, and this naked light detection circuit enters duty. When open flame detector MK1 does not detect naked light time, open flame detector MK1 would not occur signal, amplifier LM324AD then not to have signal to amplify, and 26 feet of modulus conversion chip ADC0809CCN input also without signal. The 17 feet then no signal output of modulus conversion chip ADC0809CCN, 21 feet of single-chip microcomputer U1 are also do not have signal to export, and loudspeaker Speaker does not send alarm signal.
Embodiment described above is only that preferred implementation of the present utility model is described; not scope of the present utility model is defined; under the premise designing spirit without departing from this utility model; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that this utility model claims are determined.
Claims (1)
1. a computer fireproof alarming circuit, it is characterised in that: it includes naked light detection circuit, single chip machine controlling circuit and warning circuit;
Described naked light detection circuit is specifically connected as: this circuit is centered by amplifier LM324AD and modulus conversion chip ADC0809CCN, naked light detection sensor MK1 one end connects the power supply VCC1 of+5V, the other end connects earth terminal GND1, the resistance R2 of the adjustable resistance R1 and a 51K of a 10K is connected between power supply VCC1 and ground end GND1, resistance R3 one end of 10K connects the resistance R2 of an adjustable resistance R1 and 51K, the other end connects positive terminal 3 foot of amplifier LM324AD, negative pole end 2 foot of amplifier LM324AD meets switch S1, switch S1 earth terminal GND1, 4 feet of amplifier LM324AD meet power supply VCC2, 8 foot ground connection GND2, 1 foot is analog signal output, it is connected to 26 feet of modulus conversion chip ADC0809CCN, 10 feet of modulus conversion chip ADC0809CCN connect the clock signal of 500KHz, for starting of oscillation, 6 feet of modulus conversion chip ADC0809CCN, 11 feet, 12 feet and 22 feet connect power supply VCC4, 23 feet, 24 feet and 25 feet connect three identical 10K resistance R21 respectively, R22 and R23, three resistance are connected to the power supply VCC3 of+5V more together, the 3 foot earth terminal GND3 of modulus conversion chip ADC0809CCN, 16 foot earth terminal GND4, 17 feet are the outfan of ADC signal,
Described single chip machine controlling circuit is specifically connected as: this circuit with model be P89C51X2BN 51 series monolithic U1 for core, one branch road of 9 feet connects the resistance R1 of 10K, resistance R1 meets No. 2 ground end GND2, the electric capacity C3 of another branch road 10uF, also having a branch road connecting valve S1, three is in parallel, is eventually connected to the power supply VCC2 of+5V, this part is reset circuit, plays the effect of reset; The 18 of single-chip microcomputer U1,19 feet connect electric capacity C1, C2 of 30pF respectively, between be connected with the crystal oscillator Y1 of 12MHZ, be then attached to ground No. 3 ground end GND3, this part is start-oscillation circuit, and single-chip microcomputer U1 plays the effect of starting of oscillation, it is ensured that starting working of single-chip microcomputer; 40 feet meet power supply VCC1, and 20 feet meet No. 1 ground end GND1, and single-chip microcomputer U1 is played the effect of power supply by power supply; 1 foot of single-chip microcomputer U1 connects 17 feet of naked light detection circuit, i.e. ADC outfan respectively, and 21 feet of single-chip microcomputer U1 are connected to the input of warning circuit, and the control circuit of single-chip microcomputer is made according to the situation of input signal and warning circuit provided signal and is controlled operation;
Described warning circuit is specifically connected as: the output signal coming from single-chip microcomputer 21 foot is connected to the base stage of audion 2N3904, the colelctor electrode of audion 2N3904 connects the positive pole of+3V power supply Battery, the negative pole of emitter stage even+3V power supply Battery, connecting the loudspeaker Speaker of 8 ohm between the collector and emitter of audion 2N3904, loudspeaker Speaker is used for reporting to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521104187.6U CN205318566U (en) | 2015-12-29 | 2015-12-29 | Computer fireproof alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521104187.6U CN205318566U (en) | 2015-12-29 | 2015-12-29 | Computer fireproof alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205318566U true CN205318566U (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521104187.6U Expired - Fee Related CN205318566U (en) | 2015-12-29 | 2015-12-29 | Computer fireproof alarm circuit |
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| Country | Link |
|---|---|
| CN (1) | CN205318566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108694799A (en) * | 2018-07-06 | 2018-10-23 | 无锡众创未来科技应用有限公司 | Fire behavior alarm |
-
2015
- 2015-12-29 CN CN201521104187.6U patent/CN205318566U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108694799A (en) * | 2018-07-06 | 2018-10-23 | 无锡众创未来科技应用有限公司 | Fire behavior 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: 20160615 Termination date: 20161229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |