CN208141550U - A kind of intelligent housing district anti-theft device - Google Patents
A kind of intelligent housing district anti-theft device Download PDFInfo
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- CN208141550U CN208141550U CN201820563024.1U CN201820563024U CN208141550U CN 208141550 U CN208141550 U CN 208141550U CN 201820563024 U CN201820563024 U CN 201820563024U CN 208141550 U CN208141550 U CN 208141550U
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- circuit
- alarm
- chip microcontroller
- theft device
- intelligent housing
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- Burglar Alarm Systems (AREA)
Abstract
It include inductor, alarm the utility model discloses a kind of intelligent housing district anti-theft device, characterized by further comprising single-chip microcontroller, amplifying circuit, comparison circuit, logic gates, clock circuit, reset circuit, the inductor is pyroelectric infrared sensor.The utility model has the beneficial effects that：1, it is detected using pyroelectric infrared sensor, good concealment, is not easy to be found by robber；Little interference by environment, it is not easy to cause to report by mistake；2, when detecting dangerous situation, alarm lamp can be made to flash, and sound the alarm, frightens robber；3, the unified management for being easy to implement multiple users is handled with single-chip microcontroller, can be not only used for the house of single building formula, it can also be used to relatively large community security system.
Description
Technical field
The utility model relates to technical field of burglary prevention more particularly to a kind of intelligent housing district anti-theft devices.
Background technique
With being constantly progressive for society, politics, economy and science and technology, people's lives level is greatly improved,
The personal effects and property of people also constantly increase, and then propose corresponding new requirement to anti-theft measure.Currently on the market
Some Domestic electronic burglar alarms are only available for individual house, are unprofitable to be managed collectively, and can not meet modern intelligence
The requirement of cell development.
Burglar alarm mainly has in the current marketplace：Switch electronic burglar alarm, pressure activated formula burglar alarm
With various alarms such as pressure shading triggering type anti-theft alarming device, but they that there are also disadvantages is as follows：（1）Switching regulator electronics is anti-
There is usually one fixed points for robber's alarm, so alarm range is small, switch is also easy the feelings bad, appearance is caused to lose report and report by mistake
Condition, its reliability is bad in a word.（2）Pressure activated formula burglar alarm is because pressure plare is in cushion, if host does not work
When, owner, which is in, to walk about, and can all occur the case where losing report and wrong report easily, so its reliability is also bad.（3）Light shading type touching
Hair burglar alarm makes it that can cause to report by mistake when being irradiated by sunlight due to its principle, if there are also have wind curtain or
The case where shading accidentally occur can also cause to report by mistake, therefore its reliability is also bad.
Utility model content
In order to solve technical problem present in above-mentioned background technique, it is small that the utility model provides a kind of intelligent residence
Area's anti-theft device, the device use pyroelectric infrared sensor, are not easy to be found by robber, favorable working performance, securely and reliably.Together
When it use single-chip microcontroller do signal processor, this will be helpful to connection computer, be more conducively managed collectively with computer.
What the technical solution of the utility model was realized in：
A kind of intelligent housing district anti-theft device, including inductor, alarm, it is characterised in that further include single-chip microcontroller,
Amplifying circuit, comparison circuit, logic gates, clock circuit, reset circuit, the inductor are pyroelectric infrared sensor,
The output end of the pyroelectric infrared sensor is connected with input amplifier, and the amplifying circuit includes transistor, institute
It states amplification circuit output end to be connected with comparison circuit input terminal, the comparison circuit output end and logic gates input terminal phase
Connection, the logic gates output end are connected with single-chip microcontroller, and the clock circuit, reset circuit are connected with single-chip microcontroller, described
Alarm is equipped with voice guard and light emitting diode alarm, and the voice guard passes through audible alarm circuit and single-chip microcontroller
It is connected, the audible alarm circuit is equipped with large power triode, as the driving of voice guard, the light emitting diode report
Alert device is connected by light emitting diode alarm with single-chip microcontroller.
Further, the single-chip microcontroller uses AT89S51 single-chip microcontroller.
Further, the logic gates uses the TTL circuit of model 74LS04.
Further, the comparison circuit is two limit comparison circuit, is made of two LM324 voltage comparators.
Further, the voice guard uses buzzer.
Further, the light emitting diode alarm uses several LED light emitting diodes.
Further, the large power triode uses SS8050 large power triode.
Further, the intelligent housing district anti-theft device is additionally provided with manual audible alarm interrupt circuit.
The working principle of the utility model：Whole system is worked under SCM system software control.By pyroelectricity
Infrared sensor is arranged on monitoring point, and the infrared light of human body radiation is transformed into electric signal by infrared probe, through amplifying circuit, ratio
It send compared with circuit to threshold switch, opens thresholding valve and send out TTL level to single-chip microcontroller.
The infrared ray central wavelength of human body radiation is 9 ~ 10um, and the wavelength-sensitive of pyroelectric infrared sensor detecting element
Degree is almost stablized constant within the scope of 0.2 ~ 20um.One has been opened up equipped with optical filtering in pyroelectric infrared sensor transducer tip
The window of eyeglass, this optical filter can be 7 ~ 10um by the wave-length coverage of light, quite well to the detection of human infrared radiation,
And the infrared ray of other wavelength is absorbed by optical filter.Optical filter makes the interference of environment by apparent control action, no
Easily cause wrong report.The detection signal very little of pyroelectric infrared sensor output, only 1mV or so, frequency are 0.1 ~ 10HZ, it is needed
It can be just further processed after high-gain, the amplification of low noise low-frequency amplifier.
In single-chip microcontroller, after the links such as software inquiry, identification, judgement, the control of intrusion alarm state is issued in real time
Signal.Large power triode will control signal and amplify and sound-light alarm equipment be pushed to complete corresponding movement.As presignal delay 10s
It can be automatically terminated after a period of time, can also manually release alarm signal, reset circuit makes system reset after alert is eliminated.
The utility model has the beneficial effects that：1, it is detected using pyroelectric infrared sensor, good concealment, is not easy to be stolen
Thief's discovery；Little interference by environment, it is not easy to cause to report by mistake；2, when detecting dangerous situation, alarm lamp can be made to flash, and issue
Alarm song frightens robber；3, the unified management for being easy to implement multiple users is handled with single-chip microcontroller, can be not only used for single building formula
House, it can also be used to relatively large community security system.
Detailed description of the invention
Fig. 1 is the utility model embodiment structural schematic diagram；
Fig. 2 is amplification circuit diagram；
Fig. 3 is two limit comparison circuit diagram；
Fig. 4 is LED light emitting diode warning circuit figure；
Fig. 5 is audible alarm circuit diagram；
Fig. 6 is audible alarm interrupt circuit figure；
Fig. 7 is the system program flow chart of the utility model embodiment.
In figure：1, AT89S51 single-chip microcontroller, 2, pyroelectric infrared sensor, 3, amplifying circuit, 4, two limit comparison circuit, 5,
TTL circuit, 6, LED light emitting diode warning circuit, 7, audible alarm circuit, 701, buzzer, 8, the interruption of manual audible alarm
Circuit, 9, clock circuit, 10, hand-reset circuit, 11, LM324 voltage comparator, Q1,9014 transistors, Q2,
SS8050 large power triode, D1/D2/D3/D4, LED light emitting diode, S1, key.
Specific embodiment
As shown in Figures 1 to 6, the utility model embodiment includes pyroelectric infrared sensor 2, AT89S51 single-chip microcontroller 1, puts
Big circuit 3, two limit comparison circuit 4, TTL circuit 5, LED light emitting diode warning circuit 6, audible alarm circuit 7, clock circuit
9, hand-reset circuit 10, output end and 3 input terminal of amplifying circuit of pyroelectric infrared sensor 2 are connected, and amplifying circuit 3 exports
End be connected with 4 input terminal of two limit comparison circuit, amplifying circuit 3 include 9014 triode transistors, 4 output end of two limit comparison circuit and
5 input terminal of TTL circuit is connected, and 5 output end of TTL circuit is connected with AT89S51 single-chip microcontroller 1, clock circuit 9, hand-reset circuit
10 are connected with AT89S51 single-chip microcontroller 1, and the pin TXD of audible alarm circuit 7 and AT89S51 single-chip microcontroller 1 is connected, audible alarm
Circuit 7 includes SS8050 large power triode Q2, buzzer 701, driving of the Q2 as buzzer 701, LED light emitting diode report
The pin RXD of alert circuit 6 and AT89S51 single-chip microcontroller 1 is connected, and LED light emitting diode warning circuit 6 includes four LED luminous two
Pole pipe D1/D2/D3/D4.
Preferably, TTL circuit model 74LS04.
Preferably, two limit comparison circuit 4 is made of two LM324 voltage comparators.Two LM324 voltages are set to compare
The reference voltage of device is a, b, works as input voltage<When a, comparator exports high level；Work as input voltage>When b, comparator is also exported
High level.Work as a<Input voltage<When b, comparator exports low level.
Preferably, the intelligent housing district anti-theft device is additionally provided with manual audible alarm interrupt circuit 8.
When the utility model embodiment works：Whole system is worked under 1 system software controls of AT89S51 single-chip microcontroller
's.Pyroelectric infrared sensor 2 is arranged on monitoring point, the infrared light of human body radiation is transformed into electric signal by infrared probe,
It send through amplifying circuit 3, two limit comparison circuit 4 to threshold switch, opens thresholding valve and send out TTL level to AT89S51 single-chip microcontroller
1.In AT89S51 single-chip microcontroller, after the links such as software inquiry, identification, judgement, the control of intrusion alarm state is issued in real time
Signal.
After the RXD pin of AT89S51 single-chip microcontroller 1 is set to low level, LED light emitting diode D1/D2/D3/D4 is by point
It is bright, play alarm function.
It is driven using SS8050 large power triode Q2, when buzzer 701 is high level, high-power three pole SS8050
Pipe Q2 conducting, the at this time alarm of buzzer 701 are spoken.
When presignal delay 10s for a period of time after can automatically terminate, can also manually release alarm signal, when alert eliminate
Reset circuit makes system reset afterwards.
As shown in fig. 7, the utility model embodiment workflow：After booting, AT89S51 single-chip microcontroller 1 carries out initially first
Change, after AT89S51 single-chip microcontroller 1 detects the pulse signal that external pyroelectric infrared sensor 2 is sent, indicates that someone swarms into
Monitored space, to drive LED light emitting diode warning circuit 6, sound report after the processing of AT89S51 single-chip microcontroller internal processes
Alert circuit 7 starts to alarm, and automatic stop alarm after clock for 10 seconds of alarming, then program starts the cycle over work, detects whether also
There is next trigger signal, waits alarm to make alarm enter continuous working condition.Meanwhile using being powered off in sound-light alarm
When road 8 can realize that the alarm duration is not by 10 seconds, key stops the effect of sound-light alarm by hand.
The above, only the utility model preferred embodiment, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its inventive concept is subject to equivalent substitution or change, should all cover the protection scope of the utility model it
It is interior.
Claims (8)
1. a kind of intelligent housing district anti-theft device, including inductor, alarm, it is characterised in that further include single-chip microcontroller, put
Big circuit, comparison circuit, logic gates, clock circuit, reset circuit, the inductor are pyroelectric infrared sensor, should
The output end of pyroelectric infrared sensor is connected with input amplifier, and the amplifying circuit includes transistor, described
Amplification circuit output end is connected with comparison circuit input terminal, and the comparison circuit output end is connected with logic gates input terminal,
The logic gates output end is connected with single-chip microcontroller, and the clock circuit, reset circuit are connected with single-chip microcontroller, the alarm
Device is equipped with voice guard and light emitting diode alarm, and the voice guard passes through audible alarm circuit and single-chip microcontroller phase
Connection, the audible alarm circuit is equipped with large power triode, as the driving of voice guard, the light emitting diode alarm
Device is connected by light emitting diode alarm with single-chip microcontroller.
2. a kind of intelligent housing district anti-theft device according to claim 1, it is characterised in that：The single-chip microcontroller uses
AT89S51 single-chip microcontroller.
3. a kind of intelligent housing district anti-theft device according to claim 1, it is characterised in that：The logic gates
Using the TTL circuit of model 74LS04.
4. a kind of intelligent housing district anti-theft device according to claim 1, feature exist：The comparison circuit is double
Comparison circuit is limited, is made of two LM324 voltage comparators.
5. a kind of intelligent housing district anti-theft device according to claim 1, it is characterised in that：The voice guard
Using buzzer.
6. a kind of intelligent housing district anti-theft device according to claim 1, it is characterised in that：The light emitting diode
Alarm uses several LED light emitting diodes.
7. a kind of intelligent housing district anti-theft device according to claim 1, it is characterised in that：High-power three pole
Pipe uses SS8050 large power triode.
8. a kind of intelligent housing district anti-theft device according to claim 1, it is characterised in that：The intelligent residence
Cell anti-theft device is additionally provided with manual audible alarm interrupt circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820563024.1U CN208141550U (en) | 2018-04-19 | 2018-04-19 | A kind of intelligent housing district anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820563024.1U CN208141550U (en) | 2018-04-19 | 2018-04-19 | A kind of intelligent housing district anti-theft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208141550U true CN208141550U (en) | 2018-11-23 |
Family
ID=64293971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820563024.1U Expired - Fee Related CN208141550U (en) | 2018-04-19 | 2018-04-19 | A kind of intelligent housing district anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208141550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899444A (en) * | 2020-07-16 | 2020-11-06 | 广州百畅信息科技有限公司 | Alarm based on intelligent control of Internet of things |
-
2018
- 2018-04-19 CN CN201820563024.1U patent/CN208141550U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899444A (en) * | 2020-07-16 | 2020-11-06 | 广州百畅信息科技有限公司 | Alarm based on intelligent control of Internet of things |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20190419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |