CN202294685U - Singlechip microcomputer-based automobile anti-theft alarm device - Google Patents
Singlechip microcomputer-based automobile anti-theft alarm device Download PDFInfo
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- CN202294685U CN202294685U CN2011203998469U CN201120399846U CN202294685U CN 202294685 U CN202294685 U CN 202294685U CN 2011203998469 U CN2011203998469 U CN 2011203998469U CN 201120399846 U CN201120399846 U CN 201120399846U CN 202294685 U CN202294685 U CN 202294685U
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- automobile anti
- theft
- alarm device
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- wireless module
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Abstract
The utility model discloses a singlechip microcomptuer-based automobile anti-theft alarm device which comprises a power supply, a torque sensor, a vibration sensor, a wireless module, an alarm device, a remote control and a singlechip microcomputer, wherein the torque sensor, the vibration sensor and the alarm device are respectively connected with the singlechip microcomputer; and the torque sensor, the vibration sensor and the wireless module are respectively connected with the power supply, and the alarm device is connected with the wireless module. The singlechip microcomputer-based automobile anti-theft alarm device is real-time in data measurement, can be used for exactly positioning the situation of an automobile body, and can be used for filtering out signals in case of general interference, thereby being convenient for owners due to no generation of spurious signals. The singlechip microcompter-based automobile anti-theft alarm device is stable in selecting performance, a Freescale MC9S12XDP512 with high practical applicability is taken as the singlechip microcomputer, and the chip is larger in internal memory, so that not only can the precision requirement be met, but also the cost requirement can be considered. The practice proves that the chip can realize the function of automobile anti-theft alarm under low power consumption. The singlechip microcomputer-based automobile anti-theft alarm device is simple in structure and lower in cost.
Description
Technical field
The utility model belongs to vehicle electronics and appliance applications technical field, is specifically related to a kind of alarming device for automobile anti-theft, particularly a kind of SCM Based alarming device for automobile anti-theft.
Background technology
Automobile is the human main vehicle at present, also is the sign of modern civilization.The annual automobile sales volume in the whole world reaches more than 6,000 ten thousand, and recoverable amount is above 500,000,000.At present, automobile burglar has become an important social concern, and it has been classified as four big problems of automotive technology development with safety, environmental protection, energy-conservation three, and increasing gradually of the stolen case of power actuated vehicle caused the economic asset loss to people.In order to reduce the incidence of the stolen incident of automobile, to user vehicle safety control is provided, car alarm system arises at the historic moment; But automotive anti-theft alarming system complex structure commonly used at present; Inconvenient operation, and can only realize unidirectional control, therefore; Develop a kind of simple and reliablely, easy to operate, alarming device for automobile anti-theft that can the two-way control of people's car has crucial meaning.
Summary of the invention
To defective that exists in the above-mentioned prior art or deficiency; The purpose of the utility model is; A kind of SCM Based alarming device for automobile anti-theft is provided, and this device has increased remote control function on existing Car Burglar Alarm basis, has realized the control of people's car bidirectional mode; Be different from the unidirectional control of existing antitheft alarm system, improved safety, alerting ability and reliability.
To achieve these goals, the utility model adopts following technical solution:
A kind of SCM Based alarming device for automobile anti-theft; It is characterized in that; Comprise power supply, torque sensor, vibration sensor, wireless module, annunciator, remote controller and micro controller system, wherein, said torque sensor, vibration sensor, annunciator are connected with said micro controller system respectively; Said torque sensor, vibration sensor, wireless module connect said power supply respectively, and said annunciator is connected with said wireless module.
The utility model also comprises following other technologies characteristic:
Said wireless module adopts the TDA5255 chip.
Said remote controller adopts the GV401-4 remote controller.
Said annunciator adopts buzzer phone.
Said power supply adopts chargeable lithium cell.
Said torque sensor adopts JN338-AN serial bus formula torque rotary speed sensor.
Said vibration sensor adopts the RP670B low-frequency shock transducer.
Said micro controller system adopts Freescale MC9S12XDP512 chip.
The advantage of the utility model:
(1) real-time measuring data is accurately located the situation of car body, can carry out filtering signals if run into general interference, can not produce spurious signal the car owner is brought inconvenience.
(2) select stable performance for use, practical Freescale MC9S12XDP512 is as micro controller system.This chip internal memory is bigger, can satisfy accuracy requirement, can take into account the requirement of cost again.Through facts have proved, this chip can be realized under the low-power consumption anti-theft alarm function to automobile.
(3) simple in structure.
(4) adopt product simple, cost is lower.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the pin scheme drawing of micro controller system.
Fig. 3 is torque sensor, the vibration sensor arrangement scheme drawing on automobile.
Fig. 4 is the workflow diagram of the utility model.
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to specify.
The specific embodiment
With reference to Fig. 1; The SCM Based alarming device for automobile anti-theft of the utility model; Comprise power supply, torque sensor, vibration sensor, wireless module, annunciator, remote controller and micro controller system, wherein, torque sensor, vibration sensor, annunciator are connected with micro controller system respectively; Torque sensor, vibration sensor, wireless module connect power supply respectively, and annunciator is connected with wireless module.Remote controller is not shown among the figure, and remote controller intercoms through wireless signal with wireless module mutually.
Wireless module adopts the TDA5255 chip.The TDA5255 chip is the FSK/ASK monolithic transceiving chip of the German Infineon company low-power consumption that power is arranged of producing, and is operated in 433～435MHz frequency range, has FSK/ASK modulation and demodulation function.Integrated level is high, and the killer, fsk demodulator, data filter, data divider of complete VCO (voltage controlled oscillator (VCO)) and PLL (phaselocked loop) synthesizer, FSK MOD, RSSI etc. are arranged, and has reduced the design of peripheral circuit.Especially this chip has the energy-saving mode function, can energy-saving mode be set through different modes, meets the requirement of remote controller low-power consumption.
The GV401-4 model remote controller that remote controller adopts roc scape scientific & technical corporation to produce.Remote controller is used for the switch that the car owner controls annunciator.
Annunciator adopts buzzer phone.
Power supply adopts the chargeable lithium cell of KS-7.4V-850mAH model, and nominal voltage is 7.4V.Because micro controller system adopts 5V voltage, KS-7.4V-850mAH can link to each other with 1 pin of LM7805,2 pin ground connection, 3 pins output 5V voltage.
Torque sensor adopts JN338-AN serial bus formula torque rotary speed sensor, and the measured error of its data-signal can be decreased to ± 1Hz.Through the number bus interface signal measurement numerical value of torque rotary speed directly is sent to net control devices such as computing machine, the communication of bus data has CRC data check function, and reliability of data transmission is high, and function can constantly be upgraded, need not other hardware cost.The environment for use temperature of JN338-AN :-20 ℃-50 ℃, speed measuring fluted disc: 60,120,600 or 1024 pulses of every circle.Power supply: ± 12VDC, electric current＞0.3A.Vibration sensor adopts the RP670B low-frequency shock transducer.
As shown in Figure 2, micro controller system adopts Freescale MC9S12XDP512 chip, and this chip adopts the 5V power supply, has the bus speed of 25MHZ, is used for Industry Control, is particularly suitable for automobile.The characteristics of this chip are I/O and the special-purpose communication modules of enriching of Industry Control.The Flash capacity is 512KB, and communication module has SCI, SPI, IIC, CAN, J1850 etc.Its 112 pin package 91 I/O pins, 16 tunnel 10 A/D switched pins, 8 tunnel 8 PWM pins and 8 tunnel 16 TIM pins are arranged.
With reference to Fig. 3, a is a car door among the figure, and b is car door bearing and axle, and c is a car body, and torque sensor, vibration sensor all are installed on the axle of b part, and wiring is convenient, and the transmission of signal is more accurate.
With reference to Fig. 4, behind the system initialization, torque sensor and vibration sensor carry out data acquisition, pass to micro controller system to signal through serial communication and carry out data handing.When the side door of automobile is in when illegally opening or car body has received unusual vibration, the data of then gathering will not meet the setting value of micro controller system, and micro controller system receives such data and just drives alarm equipment alarm.The car owner utilizes remote controller to pass through wireless module to the micro controller system output alarm signal, and the Single-chip Controlling annunciator begins to report to the police or stops to report to the police.
Claims (8)
1. SCM Based alarming device for automobile anti-theft; It is characterized in that; Comprise power supply, torque sensor, vibration sensor, wireless module, annunciator, remote controller and micro controller system, wherein, said torque sensor, vibration sensor, annunciator are connected with said micro controller system respectively; Said torque sensor, vibration sensor, wireless module connect said power supply respectively, and said annunciator is connected with said wireless module.
2. SCM Based alarming device for automobile anti-theft as claimed in claim 1 is characterized in that, said wireless module adopts the TDA5255 chip.
3. SCM Based alarming device for automobile anti-theft as claimed in claim 1 is characterized in that, said remote controller adopts the GV401-4 remote controller.
4. SCM Based alarming device for automobile anti-theft as claimed in claim 1 is characterized in that, said annunciator adopts buzzer phone.
5. SCM Based alarming device for automobile anti-theft as claimed in claim 1 is characterized in that, said power supply adopts chargeable lithium cell.
6. SCM Based alarming device for automobile anti-theft as claimed in claim 1 is characterized in that, said torque sensor adopts JN338-AN serial bus formula torque rotary speed sensor.
7. SCM Based alarming device for automobile anti-theft as claimed in claim 1 is characterized in that, said vibration sensor adopts the RP670B low-frequency shock transducer.
8. SCM Based alarming device for automobile anti-theft as claimed in claim 1 is characterized in that, said micro controller system adopts Freescale MC9S12XDP512 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203998469U CN202294685U (en) | 2011-10-19 | 2011-10-19 | Singlechip microcomputer-based automobile anti-theft alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203998469U CN202294685U (en) | 2011-10-19 | 2011-10-19 | Singlechip microcomputer-based automobile anti-theft alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202294685U true CN202294685U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203998469U Expired - Fee Related CN202294685U (en) | 2011-10-19 | 2011-10-19 | Singlechip microcomputer-based automobile anti-theft alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202294685U (en) |
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2011
- 2011-10-19 CN CN2011203998469U patent/CN202294685U/en not_active Expired - Fee Related
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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: 20120704 Termination date: 20121019 |