CN201842053U - Fingerprint identification based automobile theft-proof device - Google Patents

Fingerprint identification based automobile theft-proof device Download PDF

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Publication number
CN201842053U
CN201842053U CN2010205622041U CN201020562204U CN201842053U CN 201842053 U CN201842053 U CN 201842053U CN 2010205622041 U CN2010205622041 U CN 2010205622041U CN 201020562204 U CN201020562204 U CN 201020562204U CN 201842053 U CN201842053 U CN 201842053U
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China
Prior art keywords
fingerprint
driver
micro controller
controller system
conversion circuit
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Expired - Fee Related
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CN2010205622041U
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Chinese (zh)
Inventor
于鹏程
何定
吴付威
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Changan University
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Changan University
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a fingerprint identification based automobile theft-proof device. The device comprises a fingerprint sensor, a computer, a signal conversion circuit, a singlechip, a drive circuit, a relay and an automobile sound set; the fingerprint sensor, the computer, the signal conversion circuit, the singlechip, the drive circuit and the relay are sequentially connected in series; the automobile sound set is connected with the output end of the computer; the fingerprint sensor is used for acquiring fingerprint image information of a driver; the computer is used for storing the fingerprint image information of the driver, allowed by an automobile owner, comparing and analyzing the fingerprint image information and the fingerprint image information of the driver, acquired by the fingerprint sensor, to judge whether the driver is legal, and outputting legal or illegal signals; the singlechip receives the legal or illegal signals output by the computer and converted by the signal conversion circuit, and outputs control signals; and the drive circuit receives the control signals transmitted by the singlechip, and controls the on-off state of a relay coil. The device has high theft-proof accuracy and simple structure, and is convenient to use.

Description

A kind of alarms and security systems for automobiles based on fingerprint recognition
Technical field
The utility model relates to a kind of alarms and security systems for automobiles, particularly a kind of alarms and security systems for automobiles based on fingerprint recognition.
Background technology
Along with rapid development of economy, automobile pollution increases sharply, yet the development of modern science and technology also impels offender's modus operandi to improve constantly simultaneously, and the stolen incident of automobile is also more and more.Initial automobile burglar mainly adopts the mechanical type anti-joyride device, and it mainly is a certain mechanism that utilizes on the simple theory of machines pinning automobile, makes it can not effectively bring into play due effect, to reach theft-proof purpose.Recent years, the electronic type anti-joyride device grew up gradually along with the application of Eltec on automobile, and it reaches antitheft purpose by pinning automobile motor, circuit and oil circuit.But thereby mechanical type and electronic type anti-joyride device all can not reach the strick precaution criminal by stealing the purpose of key car theft.
At present, along with the development of society, every field is to the requirement of identification checking is urgent day by day automatically fast and effectively.Biological characteristic is people's a inherent attribute, has very strong self stability and individual difference, and fingerprint is the important feature of the interpersonal difference of difference.Fingerprint identification technology is more and more perfect now, in application also more and more widely.
Fingerprint identification technology is mapped a people with his fingerprint, compare by fingerprint that compares him and the fingerprint of preserving in advance, just can verify his true identity.Everyone has nothing in common with each other on pattern, breakpoint and point of crossing by (comprising fingerprint) skin lines, that is to say, and be unique, and constant throughout one's life.Therefore, fingerprint identification technology using vehicle anti-theft system can finely be overcome the shortcoming of mechanical type and electronic type anti-joyride device, improve the automobile burglar safety performance.
Summary of the invention
The purpose of this utility model is to provide a kind of alarms and security systems for automobiles based on fingerprint recognition, and it can solve the shortcoming of mechanical type and electronic type anti-joyride device, thereby promptly can take precautions against criminal by stealing the purpose of key car theft.
To achieve these goals, the utility model adopts following technical scheme to be achieved:
A kind of alarms and security systems for automobiles based on fingerprint recognition, comprise fingerprint sensor, computing machine, signaling conversion circuit, micro controller system, driving circuit, relay and auto audio equipment, fingerprint sensor, computing machine, signaling conversion circuit, micro controller system, driving circuit and relay are connected successively, and auto audio equipment links to each other with the mouth of computing machine; Described fingerprint sensor is used to gather driver's information in fingerprint, described computing machine is used to store driver's information in fingerprint that the car owner allows, and compare according to driver's information in fingerprint of this information in fingerprint and fingerprint sensor collection, judge whether the driver is legal, export legal or illegal signals; Described micro controller system, the legal or illegal signals that passes through the signaling conversion circuit conversion of receiving computer output, and output control signal; Described driving circuit receives the micro controller system control signals transmitted, and the on off mode of control relay coil.
Other technologies of the present utility model are characterized as:
Described signaling conversion circuit is the signaling conversion circuit based on the MAX232 chip.
Described driving circuit is the driving circuit based on the MC33886 chip.
Described micro controller system is the MC9S12DG128 micro controller system.
Described fingerprint sensor is installed in top, automobile key hole.
The utility model is gathered driver's information in fingerprint according to fingerprint sensor, and the driver's information in fingerprint that allows with the car owner who stores in the described computing machine compares, and judges whether the driver is legal.It can solve the shortcoming of mechanical type and electronic type anti-joyride device, thereby promptly can take precautions against criminal by stealing the purpose of key car theft, and this theft preventing method have the accuracy rate height, directly, characteristics easily, easily accepted by the user.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present utility model;
Fig. 2 is a circuit connection diagram of the present utility model;
Fig. 3 is MAX232 serial port circuit figure;
Fig. 4 is a micro controller system MC9S12XDG128 pinouts;
Fig. 5 is MC33886 serial port circuit figure.
Below in conjunction with accompanying drawing the utility model content is described in further detail.
The specific embodiment
With reference to Fig. 1, alarms and security systems for automobiles based on fingerprint recognition of the present utility model, comprise that fingerprint sensor, computing machine, signaling conversion circuit, micro controller system, driving circuit, normal opened contact are series at relay and auto audio equipment among the firing circuit of automobile, wherein fingerprint sensor, computing machine, signaling conversion circuit, micro controller system, driving circuit and relay are connected successively, and auto audio equipment links to each other with the mouth of computing machine.Fingerprint sensor is installed in top, automobile key hole, is used to gather driver's information in fingerprint.Computing machine is used to store driver's information in fingerprint that the car owner allows, and compares according to driver's information in fingerprint of this information in fingerprint and fingerprint sensor collection, judges whether the driver is legal, exports legal or illegal signals.Micro controller system, the legal or illegal signals that passes through the signaling conversion circuit conversion of receiving computer output, and output control signal; Described driving circuit receives the micro controller system control signals transmitted, and the on off mode of control relay coil.The power supply of this device is provided by the 12V storage battery of automobile.
With reference to Fig. 2, fingerprint sensor is transferred to computing machine after collecting driver's finger print information, judgment processing through computing machine, if the chaufeur finger print information by computing machine be judged to be " NO " time, access the audio frequency of " by fingerprint judge ", the control sound card makes the sound equipment sounding.After if processing is judged as " YES ", high level signal is passed to the R1 of MAX232 through the TXD sending end INPin is again through R1 OUTPin passes to signal the RXD receiving end of micro controller system MC9S12DG128.This moment, the voltage transitions through MAX232 changed into the 5V that micro controller system MC9S12DG128 work is used to the voltage of 12V, thereby had finished the voltage transitions in the signal.After having finished the voltage of signals conversion, but the micro controller system MC9S12DG128 just normal switching of operational relay closes action, but, be used for increasing outgoing current to drive relay coil so also need to increase a MC33886 chip because the outgoing current in the micro controller system output signal is very low.
With reference to Fig. 3, the MAX232 chip is to be the rs-232 standard serial ports design-calculated single supply level transferring chip of computer specially.Charge pump circuit wherein is to be made of 1,2,3,4,5,6 pin and 4 electric capacity.Function be generation+12v and-two power supplys of 12v, offer the needs of RS-232 serial ports level.Wherein the data transfer passage is to be made of 7,8,9,10,11,12,13,14 pin.Wherein 13 pin (R1IN), 12 pin (R1OUT), 11 pin (T1IN), 14 pin (T1OUT) are first data channel.8 pin (R2IN), 9 pin (R2OUT), 10 pin (T2IN), 7 pin (T2OUT) are second data channel.The TTL/CMOS data convert the RS-232 data to from T1IN, T2IN input and deliver to computer DP9 plug from T1OUT, T2OUT; The RS-232 data of DP9 plug are exported from R1OUT, R2OUT after R1IN, R2IN input converts the TTL/CMOS data to.
With reference to Fig. 4, the MC9S12DG128 microcontroller is a kind of in 16 micro controller systems of the M68HC12 of motorola inc series, its inner structure mainly contains the micro controller system essential part and the CAN function block is partly formed, basic structure comprises: central processor unit HCS12,2 asynchronous serial communication mouth SCI, 2 synchronous serial communication mouth SPI, 8 passages input capture/output is timer relatively, 18 passage pulse width modulation module and 49 independent digit I/O mouths, the Flash ROM that also has 128KB in the sheet, the RAM of 8KB and the EEPROM of 2KB, the CAN function block comprises the msCAN controller composition of two compatible CAN2.0A/B agreements, these abundant internal resource and external interface resources can satisfy the processing of ECU to various data, the transmission of CAN network data and reception requirement, two msCAN12 modules that chip is integrated can realize the gateway node function of high low speed CAN network.
With reference to Fig. 5, can realize the closed action of relay by this MC33886.From the incoming signal of IN1 end introducing low current, can obtain the signal of high electric current from the OUT1 end, thereby reach the purpose that improves electric current, promptly realized the closed action of relay.

Claims (5)

1. alarms and security systems for automobiles based on fingerprint recognition, comprise fingerprint sensor, computing machine, signaling conversion circuit, micro controller system, driving circuit, relay and auto audio equipment, it is characterized in that: fingerprint sensor, computing machine, signaling conversion circuit, micro controller system, driving circuit and relay are connected successively, and auto audio equipment links to each other with the mouth of computing machine; Described fingerprint sensor is used to gather driver's information in fingerprint, described computing machine is used to store driver's information in fingerprint that the car owner allows, and compare according to driver's information in fingerprint of this information in fingerprint and fingerprint sensor collection, judge whether the driver is legal, export legal or illegal signals; Described micro controller system, the legal or illegal signals that passes through the signaling conversion circuit conversion of receiving computer output, and output control signal; Described driving circuit receives the micro controller system control signals transmitted, and the on off mode of control relay coil.
2. the alarms and security systems for automobiles based on fingerprint recognition as claimed in claim 1 is characterized in that: described signaling conversion circuit is the signaling conversion circuit based on the MAX232 chip.
3. the alarms and security systems for automobiles based on fingerprint recognition as claimed in claim 1 is characterized in that: described driving circuit is the driving circuit based on the MC33886 chip.
4. the alarms and security systems for automobiles based on fingerprint recognition as claimed in claim 1 is characterized in that: described micro controller system is the MC9S12DG128 micro controller system.
5. the alarms and security systems for automobiles based on fingerprint recognition as claimed in claim 1 is characterized in that: described fingerprint sensor is installed in top, automobile key hole.
CN2010205622041U 2010-10-15 2010-10-15 Fingerprint identification based automobile theft-proof device Expired - Fee Related CN201842053U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205622041U CN201842053U (en) 2010-10-15 2010-10-15 Fingerprint identification based automobile theft-proof device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205622041U CN201842053U (en) 2010-10-15 2010-10-15 Fingerprint identification based automobile theft-proof device

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102279827A (en) * 2011-06-09 2011-12-14 惠州市德赛西威汽车电子有限公司 Multifunctional communication transit box
CN103680405A (en) * 2013-11-29 2014-03-26 深圳市奥拓电子股份有限公司 LED display system and safe signal switching method thereof
CN105196972A (en) * 2015-10-12 2015-12-30 无锡市惠山合力传热设备厂 Novel automobile electrical appliance wiring harness anti-theft device structure
CN106043233A (en) * 2016-06-06 2016-10-26 西安后羿半导体科技有限公司 Electric vehicle controller recognition control system and method and electric vehicle
CN108021851A (en) * 2016-11-04 2018-05-11 法乐第(北京)网络科技有限公司 Garage door control system and garage fingerprint base update method
CN108022334A (en) * 2016-11-04 2018-05-11 法乐第(北京)网络科技有限公司 Garage access control system and garage door control method
CN111661001A (en) * 2020-06-18 2020-09-15 中车青岛四方机车车辆股份有限公司 Train activation loop and train activation method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102279827A (en) * 2011-06-09 2011-12-14 惠州市德赛西威汽车电子有限公司 Multifunctional communication transit box
CN103680405A (en) * 2013-11-29 2014-03-26 深圳市奥拓电子股份有限公司 LED display system and safe signal switching method thereof
CN105196972A (en) * 2015-10-12 2015-12-30 无锡市惠山合力传热设备厂 Novel automobile electrical appliance wiring harness anti-theft device structure
CN106043233A (en) * 2016-06-06 2016-10-26 西安后羿半导体科技有限公司 Electric vehicle controller recognition control system and method and electric vehicle
CN106043233B (en) * 2016-06-06 2018-06-19 西安华羿微电子股份有限公司 A kind of controller for electric vehicle control system for identifying, method and electric vehicle
CN108021851A (en) * 2016-11-04 2018-05-11 法乐第(北京)网络科技有限公司 Garage door control system and garage fingerprint base update method
CN108022334A (en) * 2016-11-04 2018-05-11 法乐第(北京)网络科技有限公司 Garage access control system and garage door control method
CN111661001A (en) * 2020-06-18 2020-09-15 中车青岛四方机车车辆股份有限公司 Train activation loop and train activation method

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Granted publication date: 20110525

Termination date: 20111015