CN202863389U - Novel car anti-theft alarm system - Google Patents
Novel car anti-theft alarm system Download PDFInfo
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- CN202863389U CN202863389U CN 201220561840 CN201220561840U CN202863389U CN 202863389 U CN202863389 U CN 202863389U CN 201220561840 CN201220561840 CN 201220561840 CN 201220561840 U CN201220561840 U CN 201220561840U CN 202863389 U CN202863389 U CN 202863389U
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Abstract
The utility model relates to a novel car anti-theft alarm system which comprises a triaxial acceleration sensor, a single chip, a relay, an alarm and a voltage stabilizer, wherein the triaxial acceleration sensor, the single chip, the relay and the voltage stabilizer are arranged inside the novel car anti-theft alarm system, and the alarm is arranged outside the novel car anti-theft alarm system. The novel car anti-theft alarm system has the advantages that vibration and angle changes of a car body can be detected effectively, meanwhile the sound wave and disturbance caused by nearby passing cars are restrained effectively, the alarming judgments are reliable and traveling by a car become more convenient.
Description
Technical field
The utility model relates to a kind of automotive anti-theft alarming system, especially can realize the new automobile guard against theft and alarm system that static tilt angles detects and prevents from reporting by mistake.
Background technology
At present, the anti-theft system of modern automobile usually adopts anti-theft early-warning is carried out in the impact of car body or the mode of vibration monitoring, and device commonly used mostly is the magnetic effect sensor.Although the sensitive property of magnetic effect acceleration pick-up is fine, but because Magnetic Sensor exists assembling and installation error, its frequency response is unstable, can cause follow-up signal treatment circuit and microcontroller interface circuit more complicated, cause the reliability of system alarm to reduce, rate of false alarm is higher.In addition, the method of trailer or car load carrying also is present burglar's stolen car means commonly used, tackling the effective method of this theft mode is that the angle of inclination of car body is monitored, and the magnetic effect sensor can't be measured static acceleration, can not measure the angle of inclination of car body, also just can't carry out monitoring and warning to this theft mode.
The utility model content
The problem that has wrong report, can not detect static tilt angles and interface circuit complexity in order to overcome existing automotive anti-theft alarming system, the utility model provides a kind of new automobile guard against theft and alarm system, this guard against theft and alarm system can detect the variation at body oscillating and car body inclination angle effectively, effectively suppress simultaneously sound wave and near vehicle through out-of-date interference, accomplished accurate warning.
The technical scheme that its technical matters that solves the utility model adopts is: this new automobile guard against theft and alarm system comprises 3-axis acceleration sensor, micro controller system, relay, annunciator and voltage stabilizer, 3-axis acceleration sensor, micro controller system, relay and voltage stabilizer are arranged on the inside of system, and annunciator is arranged on the outside of system; The model of micro controller system is ATMEGA16, the micro controller system of this model has 40 pins, and wherein pin 12 and pin 13 connect the 8MHz crystal oscillator, and crystal oscillator is by ceramic disc capacitor C1 and ceramic disc capacitor C2 ground connection, the capacitance of ceramic disc capacitor C1 and ceramic disc capacitor C2 is 22PF, and this micro controller system is used for signal to be processed; The model of 3-axis acceleration sensor is Longqiu MMA7361, this 3-axis acceleration sensor has 12 pins, wherein pin 2 connects the 5V power supply, pin 3 ground connection, pin 6 connects the pin 39 of micro controller system, and pin 5 connects the pin 38 of micro controller system, and pin 4 connects the pin 37 of micro controller system, this 3-axis acceleration sensor measuring vibrations information and obliquity information, and then data are passed to micro controller system process; The model of annunciator is existing 12V alarming horn on the market, and the pin 1 of annunciator is succeeded the pin 3 of electrical equipment, and the pin 2 of annunciator is succeeded the pin 2 of electrical equipment; The model of relay is AR4078, and annunciator is driven by relay, and the pin 1 of relay connects the pin 3 of micro controller system, and pin 8 connects the 12V power supply, and pin 5 and pin 6 be ground connection respectively; The model of voltage stabilizer is 7805, and this voltage stabilizer can be reduced to 5V with existing 9V power supply on the market, is respectively power devices, and wherein the pin 1 of voltage stabilizer connects the 9V power supply, pin 2 ground connection, and pin 3 connects the pin 10 of micro controller system.
Described 3-axis acceleration sensor is vibration information and the obliquity information of measured automobiles simultaneously, and be sent to micro controller system, micro controller system to external world sound and vehicle carries out actv. filtering through the interfere information that produces and processes, if detect the information theft that comprises the car load haul, then can send relay to opening signal, the Control annunciator is made the indication of reporting to the police immediately.
The beneficial effects of the utility model are, this new automobile guard against theft and alarm system can detect the variation at body oscillating and car body inclination angle effectively, effectively suppressed simultaneously sound wave and near vehicle through out-of-date interference, alarm decision offers convenience to people's trip of driving accurately and reliably.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is structural principle schematic diagram of the present utility model.
Fig. 2 is chip catenation principle schematic diagram of the present utility model.
Among the figure, 1. 3-axis acceleration sensor, 2. annunciator, 3. relay, 4. micro controller system, 5. voltage stabilizer.
The specific embodiment
In the drawings, this new automobile guard against theft and alarm system comprises 3-axis acceleration sensor 1, annunciator 2, relay 3, micro controller system 4 and voltage stabilizer 5,3-axis acceleration sensor 1, micro controller system 4, relay 3 and voltage stabilizer 5 are arranged on the inside of system, and annunciator 2 is arranged on the outside of system; The model of micro controller system 4 is ATMEGA16, the micro controller system 4 of this model has 40 pins, and wherein pin 12 and pin 13 connect the 8MHz crystal oscillator, and crystal oscillator is by ceramic disc capacitor C1 and ceramic disc capacitor C2 ground connection, the capacitance of ceramic disc capacitor C1 and ceramic disc capacitor C2 is 22PF, and this micro controller system 4 is used for signal to be processed; The model of 3-axis acceleration sensor 1 is Longqiu MMA7361, this 3-axis acceleration sensor 1 has 12 pins, wherein pin 2 connects the 5V power supply, pin 3 ground connection, pin 6 connects the pin 39 of micro controller system, and pin 5 connects the pin 38 of micro controller system, and pin 4 connects the pin 37 of micro controller system 4, this 3-axis acceleration sensor 1 measuring vibrations information and obliquity information, and then data are passed to micro controller system 4 process; The model of annunciator 2 is existing 12V alarming horns on the market, and the pin 1 of annunciator 2 is succeeded the pin 3 of electrical equipment 3, and the pin 2 of annunciator 2 is succeeded the pin 2 of electrical equipment 3; The model of relay 3 is AR4078, and annunciator 2 is driven by relay 3, and the pin 1 of relay 3 connects the pin 3 of micro controller system 4, and pin 8 connects the 12V power supply, and pin 5 and pin 6 be ground connection respectively; The model of voltage stabilizer 5 is 7805, and this voltage stabilizer 5 can be reduced to 5V with existing 9V power supply on the market, is respectively power devices, and wherein the pin 1 of voltage stabilizer 5 connects the 9V power supply, pin 2 ground connection, and pin 3 connects the pin 10 of micro controller system 4.
Described 3-axis acceleration sensor 1 is vibration information and the obliquity information of measured automobiles simultaneously, and be sent to micro controller system 4, micro controller system 4 to external world sound and vehicle carries out actv. filtering through the interfere information that produces and processes, if detect the information theft that comprises the car load haul, then can send relay 3 to opening signal, relay 3 control annunciators 2 are made the indication of reporting to the police immediately.
Claims (3)
1. new automobile guard against theft and alarm system, this new automobile guard against theft and alarm system comprises 3-axis acceleration sensor (1), annunciator (2), relay (3), micro controller system (4) and voltage stabilizer (5), it is characterized in that, this micro controller system (4) has 40 pins, wherein pin 12 and pin 13 connect the 8MHz crystal oscillator, and crystal oscillator is by ceramic disc capacitor C1 and ceramic disc capacitor C2 ground connection; This 3-axis acceleration sensor (1) has 12 pins, and wherein pin 2 connects the 5V power supply, pin 3 ground connection, and pin 6 connects the pin 39 of micro controller system, and pin 5 connects the pin 38 of micro controller system, and pin 4 connects the pin 37 of micro controller system (4); The pin 1 of annunciator (2) is succeeded the pin 3 of electrical equipment (3), and the pin 2 of annunciator (2) is succeeded the pin 2 of electrical equipment (3); Annunciator (2) is driven by relay (3), and the pin 1 of relay (3) connects the pin 3 of micro controller system (4), and pin 8 connects the 12V power supply, and pin 5 and pin 6 be ground connection respectively; The pin 1 of this voltage stabilizer (5) connects the 9V power supply, pin 2 ground connection, and pin 3 connects the pin 10 of micro controller system (4).
2. new automobile guard against theft and alarm system according to claim 1 is characterized in that, the capacitance of described ceramic disc capacitor C1 and ceramic disc capacitor C2 is 22PF.
3. new automobile guard against theft and alarm system according to claim 1 is characterized in that, 3-axis acceleration sensor (1), micro controller system (4), relay (3) and voltage stabilizer (5) are arranged on the inside of system, and annunciator (2) is arranged on the outside of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561840 CN202863389U (en) | 2012-10-30 | 2012-10-30 | Novel car anti-theft alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561840 CN202863389U (en) | 2012-10-30 | 2012-10-30 | Novel car anti-theft alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202863389U true CN202863389U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220561840 Expired - Fee Related CN202863389U (en) | 2012-10-30 | 2012-10-30 | Novel car anti-theft alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202863389U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960494A (en) * | 2015-06-29 | 2015-10-07 | 康姆帕斯电子科技衡水有限公司 | Intelligent warning device for automobiles |
| CN109649268A (en) * | 2015-03-27 | 2019-04-19 | 宝马股份公司 | For the intelligent sound assistance system of vehicle, device and method |
-
2012
- 2012-10-30 CN CN 201220561840 patent/CN202863389U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649268A (en) * | 2015-03-27 | 2019-04-19 | 宝马股份公司 | For the intelligent sound assistance system of vehicle, device and method |
| CN104960494A (en) * | 2015-06-29 | 2015-10-07 | 康姆帕斯电子科技衡水有限公司 | Intelligent warning device for automobiles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131030 |