CN203727338U - Air pressure type automobile burglar alarm - Google Patents
Air pressure type automobile burglar alarm Download PDFInfo
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- CN203727338U CN203727338U CN201420027025.6U CN201420027025U CN203727338U CN 203727338 U CN203727338 U CN 203727338U CN 201420027025 U CN201420027025 U CN 201420027025U CN 203727338 U CN203727338 U CN 203727338U
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Abstract
The utility model discloses an air pressure type automobile burglar alarm which comprises an air pressure disturbance detection module, an amplifying circuit module, a microcontroller and an alarm module. The air pressure disturbance detection module is an electret microphone. The signal output end of the air pressure disturbance detection module is connected with the signal input end of the amplifying circuit module, the signal output end of the amplifying circuit module is connected with the signal input end of the microcontroller, and the signal output end of the microcontroller is connected with the alarm module. The air pressure type automobile burglar alarm has the advantages that the low-cost electret microphone is used for detecting air pressure disturbance inside an automobile and converting the air pressure disturbance into a voltage signal which is sent to the amplifying circuit module, the amplifying circuit module is used for amplifying the weak voltage signal detected by the electret microphone and then transmitting the voltage signal to the microcontroller, the microcontroller can accurately recognize voltage variation and accurately judge whether an alarm is raised or not, so that false alarming and leakage alarming are avoided, and therefore on the basis that low cost is guaranteed, the burglar alarm can achieve high precision.
Description
Technical field
The utility model relates to a kind of car alarm, especially relates to a kind of vapour-pressure type car alarm.
Background technology
Existing vapour-pressure type car alarm adopts baroceptor to detect car internal gas pressure size conventionally, and the variation of the car internal gas pressure that controller detects according to baroceptor is judged determine whether report to the police.The precision of baroceptor is higher, and its price is more expensive, and in order to ensure that car alarm has good cost performance, the vapour-pressure type car alarm of selling on the market at present adopts price comparison cheap conventionally, but the lower pressure sensor of relative accuracy.Due under most of environment, often difference is minimum for the outer air pressure of car internal gas pressure and car, if do not cause significantly barometric disturbance when larceny occurs, the baroceptor that precision is lower very likely detects inefficacy, cause Car Burglar Alarm to fail to report alert phenomenon, cause damage to car owner.
Utility model content
Technical problem to be solved in the utility model is to provide a kind ofly to be had on the basis of lower cost, the vapour-pressure type car alarm that precision is higher.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of vapour-pressure type car alarm, comprise barometric disturbance detection module, amplifying circuit module, microcontroller and alarm module, described barometric disturbance detection module is Electret condenser microphone, the signal output part of described barometric disturbance detection module is connected with the signal input part of described amplifying circuit module, the signal output part of described amplifying circuit module is connected with the signal input part of described microcontroller, the signal output part of described microcontroller is connected with described alarm module, when car owner leaves automobile, described vapour-pressure type car alarm is started working, air pressure in the real-time inspection vehicle of described Electret condenser microphone is also transferred to described amplifying circuit module by air pressure signal, described amplifying circuit module is transferred to described microcontroller after air pressure signal is amplified, described microcontroller is the variation of air pressure signal relatively, if the variation of air pressure signal exceeds the scope of setting, drive described alarm module to give the alarm.
Described microcontroller is also connected with camera and GPRS module, in described GPRS module, set car owner's cell-phone number, when the variation of air pressure signal exceeds the scope of setting, described microcontroller drives camera to take in-vehicle image when driving described alarm module to give the alarm, and the in-vehicle image of camera shooting is transferred to described GPRS module, described GPRS module sends to in-vehicle image in car owner's mobile phone.
Described amplifying circuit module comprises that model is the op amp of TL082, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, the 2nd pin of described TL082 op amp, one end of the first described resistance is connected with one end of the second described resistance, the 3rd pin of described TL082 op amp, the 5th pin of described TL082 op amp, one end of the 3rd described resistance is connected with one end of the 4th described resistance, the 1st pin of described TL082 op amp, the other end of the second described resistance is connected with one end of the first described electric capacity, and the other end of the first described electric capacity is connected with one end of the 5th described resistance, the 6th pin of described TL082 op amp, the other end of the 5th described resistance is connected with one end of the 6th described resistance, the 7th pin of described TL082 op amp is connected with the other end of the 6th described resistance and its mouth is the signal output part of described amplifying circuit module, one end of the 4th described electric capacity is connected with one end of the 7th described resistance and its coupling end is the signal input part of described amplifying circuit module, the other end of the 4th described electric capacity is connected with the other end of the first described resistance, the 8th pin of described TL082 op amp, the other end of the 7th described resistance, the other end of the 3rd described resistance, one end of the second described electric capacity is connected with one end of the 3rd described electric capacity and its coupling end access power supply, the 4th pin of described TL082 op amp, the other end of the 4th described resistance, the equal ground connection of the other end of the other end of the second described electric capacity and the 3rd described electric capacity.
Described alarm module is audible alarm module or photoelectric alarm module.
Compared with prior art, the utility model has the advantage of by adopting low-cost Electret condenser microphone to disturb and detect and be converted into voltage signal and send to amplifying circuit module car internal gas pressure, after amplifying, the weak voltage signals that amplifying circuit module detects Electret condenser microphone is transferred to microcontroller, make microcontroller can identify accurately the variation of voltage, accurately determine whether and give the alarm, avoid occurring flase alarm and fail to report police, ensureing to have on the basis of lower cost, make Car Burglar Alarm there is higher precision thus;
In the time that microcontroller is also connected with camera and GPRS module, in GPRS module, set car owner's cell-phone number, when the variation of air pressure signal exceeds the scope of setting, microcontroller drives camera to take in-vehicle image when driving alarm module to give the alarm, and the in-vehicle image that camera is taken is transferred to GPRS module, GPRS module sends to in-vehicle image in car owner's mobile phone, realize thus car owner's remote monitor and control of situation in car when reporting to the police, make car owner adopt the countermeasure adapting to according to situation in car, operability and the safety of Car Burglar Alarm are further improved,
In the time that amplifying circuit module comprises that model is the op amp, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity of TL082 and the 4th electric capacity, realize the amplification of air pressure signal by two-stage amplifying circuit, improve the accuracy of air pressure signal, further improved the accuracy of detection of Car Burglar Alarm.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment mono-;
Fig. 2 is the structural representation of embodiment bis-;
Fig. 3 is the amplifying circuit module of embodiment mono-or embodiment bis-and the circuit connection diagram of barometric disturbance detection module.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment mono-: as shown in Figure 1, a kind of vapour-pressure type car alarm, comprise barometric disturbance detection module 1, amplifying circuit module 2, microcontroller 3 and alarm module 4, barometric disturbance detection module 1 is Electret condenser microphone, the signal output part of barometric disturbance detection module 1 is connected with the signal input part of amplifying circuit module 2, the signal output part of amplifying circuit module 2 is connected with the signal input part of microcontroller 3, the signal output part of microcontroller 3 is connected with alarm module 4, when car owner leaves automobile, vapour-pressure type car alarm is started working, air pressure in the real-time inspection vehicle of Electret condenser microphone is also transferred to amplifying circuit module 2 by air pressure signal, amplifying circuit module 2 is transferred to microcontroller 3 after air pressure signal is amplified, the relatively variation of air pressure signal of microcontroller 3, if the variation of air pressure signal exceeds the scope of setting, drive alarm module 4 to give the alarm.
As shown in Figure 3, in the present embodiment, amplifying circuit module comprises that model is the op amp U1 of TL082, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3 and the 4th capacitor C 4, the 2nd pin of TL082 op amp U1, one end of the first resistance R 1 is connected with one end of the second resistance R 2, the 3rd pin of TL082 op amp U1, the 5th pin of TL082 op amp U1, one end of the 3rd resistance R 3 is connected with one end of the 4th resistance R 4, the 1st pin of TL082 op amp U1, the other end of the second resistance R 2 is connected with one end of the first capacitor C 1, and the other end of the first capacitor C 1 is connected with one end of the 5th resistance R 5, the 6th pin of TL082 op amp U1, the other end of the 5th resistance R 5 is connected with one end of the 6th resistance R 6, the 7th pin of TL082 op amp U1 is connected with the other end of the 6th resistance R 6 and its mouth is the signal output part of amplifying circuit module 2, one end of the 4th capacitor C 4 is connected with one end of the 7th resistance R 7 and its coupling end is the signal input part of amplifying circuit module 2, the other end of the 4th capacitor C 4 is connected with the other end of the first resistance R 1, the 8th pin of TL082 op amp U1, the other end of the 7th resistance R 7, the other end of the 3rd resistance R 3, one end of the second capacitor C 2 is connected with one end of the 3rd capacitor C 3 and its coupling end access power Vcc, the 4th pin of TL082 op amp U1, the other end of the 4th resistance R 4, the equal ground connection of the other end of the other end of the second capacitor C 2 and the 3rd capacitor C 3.
In the present embodiment, alarm module 4 is audible alarm module or photoelectric alarm module.
Embodiment bis-: as shown in Figure 2, the present embodiment and embodiment mono-are basic identical, difference is only that microcontroller 3 is also connected with camera 5 and GPRS module 6, in GPRS module 6, set car owner's cell-phone number, when the variation of air pressure signal exceeds the scope of setting, microcontroller 3 drives camera 5 to take in-vehicle image when driving alarm module 4 to give the alarm, and the in-vehicle image that camera 5 is taken is transferred to GPRS module 6, and 6 of transmission over radio moulds send to in-vehicle image in car owner's mobile phone 7.
Claims (4)
1. a vapour-pressure type car alarm, it is characterized in that comprising barometric disturbance detection module, amplifying circuit module, microcontroller and alarm module, described barometric disturbance detection module is Electret condenser microphone, the signal output part of described barometric disturbance detection module is connected with the signal input part of described amplifying circuit module, the signal output part of described amplifying circuit module is connected with the signal input part of described microcontroller, the signal output part of described microcontroller is connected with described alarm module, when car owner leaves automobile, described vapour-pressure type car alarm is started working, air pressure in the real-time inspection vehicle of described Electret condenser microphone is also transferred to described amplifying circuit module by air pressure signal, described amplifying circuit module is transferred to described microcontroller after air pressure signal is amplified, described microcontroller is the variation of air pressure signal relatively, if the variation of air pressure signal exceeds the scope of setting, drive described alarm module to give the alarm.
2. a kind of vapour-pressure type car alarm according to claim 1, it is characterized in that described microcontroller is also connected with camera and GPRS module, in described GPRS module, set car owner's cell-phone number, when the variation of air pressure signal exceeds the scope of setting, described microcontroller drives camera to take in-vehicle image when driving described alarm module to give the alarm, and the in-vehicle image of camera shooting is transferred to described GPRS module, described GPRS module sends to in-vehicle image in car owner's mobile phone.
3. a kind of vapour-pressure type car alarm according to claim 1 and 2, is characterized in that described amplifying circuit module comprises that model is the op amp of TL082, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, the 2nd pin of described TL082 op amp, one end of the first described resistance is connected with one end of the second described resistance, the 3rd pin of described TL082 op amp, the 5th pin of described TL082 op amp, one end of the 3rd described resistance is connected with one end of the 4th described resistance, the 1st pin of described TL082 op amp, the other end of the second described resistance is connected with one end of the first described electric capacity, and the other end of the first described electric capacity is connected with one end of the 5th described resistance, the 6th pin of described TL082 op amp, the other end of the 5th described resistance is connected with one end of the 6th described resistance, the 7th pin of described TL082 op amp is connected with the other end of the 6th described resistance and its mouth is the signal output part of described amplifying circuit module, one end of the 4th described electric capacity is connected with one end of the 7th described resistance and its coupling end is the signal input part of described amplifying circuit module, the other end of the 4th described electric capacity is connected with the other end of the first described resistance, the 8th pin of described TL082 op amp, the other end of the 7th described resistance, the other end of the 3rd described resistance, one end of the second described electric capacity is connected with one end of the 3rd described electric capacity and its coupling end access power supply, the 4th pin of described TL082 op amp, the other end of the 4th described resistance, the equal ground connection of the other end of the other end of the second described electric capacity and the 3rd described electric capacity.
4. a kind of vapour-pressure type car alarm according to claim 1 and 2, is characterized in that described alarm module is audible alarm module or photoelectric alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027025.6U CN203727338U (en) | 2014-01-16 | 2014-01-16 | Air pressure type automobile burglar alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420027025.6U CN203727338U (en) | 2014-01-16 | 2014-01-16 | Air pressure type automobile burglar alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203727338U true CN203727338U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420027025.6U Expired - Fee Related CN203727338U (en) | 2014-01-16 | 2014-01-16 | Air pressure type automobile burglar alarm |
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| CN (1) | CN203727338U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157500A (en) * | 2015-04-20 | 2016-11-23 | 富泰华工业（深圳）有限公司 | Anti-theft device, burglary-resisting system and method |
| CN106740689A (en) * | 2016-12-27 | 2017-05-31 | 成都理想科技开发有限公司 | A kind of vehicle intrusion detecting system and its implementation based on vapour-pressure type sensing |
| CN107097754A (en) * | 2017-04-27 | 2017-08-29 | 成都凌点科技有限公司 | A kind of smart machine with vehicle anti-theft function |
-
2014
- 2014-01-16 CN CN201420027025.6U patent/CN203727338U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157500A (en) * | 2015-04-20 | 2016-11-23 | 富泰华工业（深圳）有限公司 | Anti-theft device, burglary-resisting system and method |
| CN106157500B (en) * | 2015-04-20 | 2019-09-13 | 富泰华工业（深圳）有限公司 | Anti-theft device, burglary-resisting system and method |
| CN106740689A (en) * | 2016-12-27 | 2017-05-31 | 成都理想科技开发有限公司 | A kind of vehicle intrusion detecting system and its implementation based on vapour-pressure type sensing |
| CN107097754A (en) * | 2017-04-27 | 2017-08-29 | 成都凌点科技有限公司 | A kind of smart machine with vehicle anti-theft function |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20170116 |