CN101117936A - Method and system for controlling car engine ignition by finger print - Google Patents
Method and system for controlling car engine ignition by finger print Download PDFInfo
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- CN101117936A CN101117936A CNA2007101213096A CN200710121309A CN101117936A CN 101117936 A CN101117936 A CN 101117936A CN A2007101213096 A CNA2007101213096 A CN A2007101213096A CN 200710121309 A CN200710121309 A CN 200710121309A CN 101117936 A CN101117936 A CN 101117936A
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- fingerprint
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- indentification
- decryption module
- engine ignition
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Abstract
The present invention relates to a fingerprint car engine ignition control method, which consists of the following steps: firstly, a fingerprint identification and encoding module is used to extract the fingerprint feature and conduct fingerprint identification with the registered fingerprint sample; secondly, the fingerprint identification result is sent to an engine controller by the fingerprint identification and encoding module; thirdly, the engine controller makes control of an automobile engine ignition module based on the results of the fingerprint identification. The present invention resolves the problems of the inconvenience and the insecurity caused by carrying and lossing of keys; the fingerprint identification is taken as a way of identity authentication to provide effective protection for the safety of vehicles; the disadvantages caused by borrowing a car is avoided to a certain extent; the identity authentication result is communicated with the engine controller ECU in an encrypting way and is updated in real time, thus effectively preventing the authentication escape cases from happening.
Description
Technical field
The present invention relates to automation field, relate in particular to a kind of method and system of fingerprint Control of Automobile motor.
Background technique
Along with the continuous development of automotive industry and technology, if automobile anti-theft main is finished by the igniting of automotive lock and control motor.Automotive lock can be divided into three kinds of modes substantially: first kind is basic mechanical lock, prevents from illegally to open car door or igniting mechanically; Second kind is REID RFID (RadioFrequency Identification) burglarproof lock, and with RF-wise and inner receiver exchange identity data, car door or igniting are opened in the checking back, otherwise pin; The third is a chip type digital anti-theft lock, by chip is implanted in the mechanical key, behind the cipher lock, chip sends the computer sender and controller (ECU) of identification cipher to automobile in the code key contact car, checking starts automotive ignition by the back, reaches antitheft purpose otherwise pin igniting.Though above-mentioned method can realize the unlatching of automotive door, purpose antitheft and automation control has also been played in engine ignition control etc. to a certain extent: first kind of mode, antitheft rank is too low, and prior art is very easy to be broken; The second way, as car owner during with remote controller switch car door, the malicious person can steal radio waves or the infrared rays that remote controller sends with receiver or scanner, again through decoding, burglary protection system that just can opening automobile; The third mode should be that level of security is the highest in three kinds of modes on safety, but the same with other modes, all has to lose behind the key anti-theft feature and just lost efficacy and carry the trouble that key brings.The authentication of the second way and the third mode mostly is simple mutual by the back with sender and controller ECU, is got around by external mode easily, is directly opened then.
Summary of the invention
In order to solve above-mentioned technical problem, a kind of method and system of controlling car engine ignition by finger print are provided, and its purpose is, solves and carries inconvenience and the insecurity that key, loss key etc. bring, prevent from illegally to steal car, for the safety of vehicle provides effective guarantee.
The invention provides a kind of method of controlling car engine ignition by finger print, comprising:
In the step 2, the processing of described fingerprint indentification result through mixing with real-time clock.
In the step 2, described fingerprint indentification result also carries out scrambled.
Comprise before the step 1:
Step 51, engine controller power on and initialization;
Step 52, the engine controller fingerprint indentification encryption and decryption module that powers on.
Step 61, initialization fingerprint indentification encryption and decryption module;
Step 62 judges whether to carry out fingerprint indentification, if execution in step 53, otherwise execution in step 21;
Step 63 is to engine controller ready for sending message;
Step 64, the synchronized sampling real-time clock;
Step 65, the feature that takes the fingerprint and with the registration sample compare.
Comprise between step 2 and the step 3: if compare successfully, fingerprint encryption and decryption module waits for that engine controller is its outage, otherwise execution in step 63.
Also comprise between step 1 and the step 2: after engine controller receives ready message, the synchronized sampling real-time clock.
In the step 3, if the recognition result success, then engine controller controls car engine ignition module is a car engine ignition, otherwise waits for the ready message that receives the transmission of fingerprint indentification encryption and decryption module.
In the step 3, if the recognition result success, then engine controller also is the outage of fingerprint indentification encryption and decryption module.
Step 21 comprises:
Step 111 checks whether the sample fingerprint quantity of fingerprint indentification encryption and decryption module stores has reached predetermined value, if, execution in step 62, otherwise execution in step 112;
Step 112 is gathered 2 times sample fingerprint, and is contrasted described sample fingerprint, if contrast successfully, then encrypts back storage sample fingerprint, otherwise gathers fingerprint again.
The invention provides a kind of system of controlling car engine ignition by finger print, comprise the car engine ignition module, automotive engine control also comprises real-time clock generation module, fingerprint collecting sensor, fingerprint indentification encryption and decryption module; Described real-time clock be connected with fingerprint indentification encryption and decryption module with automotive engine control respectively; Automotive engine control is connected with fingerprint indentification encryption and decryption module; The fingerprint collecting sensor is connected with fingerprint indentification encryption and decryption module; Automotive engine control also is used to receive the fingerprint indentification result that fingerprint indentification encryption and decryption module sends, and controls according to the described fingerprint indentification car engine ignition module of becoming a partner.
Fingerprint indentification encryption and decryption module comprises: fingerprint indentification encryption and decryption processor, button and FLASH storage; Fingerprint indentification encryption and decryption processor is connected with the FLASH storage with button respectively; The FLASH storage is used to store sample fingerprint; Fingerprint indentification encryption and decryption processor is used for the fingerprint that collects is handled.
Fingerprint indentification encryption and decryption module also is used for the registered fingerprint sample.
Fingerprint indentification encryption and decryption module also is used to encrypt the fingerprint indentification result.
Fingerprint indentification encryption and decryption module also is used for to automotive engine control ready for sending information.
Automotive engine control also is used to fingerprint indentification encryption and decryption module to power on and/or cuts off the power supply.
Fingerprint indentification encryption and decryption module and automotive engine control also are used for the synchronized sampling real-time clock.
Fingerprint indentification encryption and decryption module is used for also judging whether the sample fingerprint quantity of FLASH storage reaches predetermined value.
Fingerprint indentification encryption and decryption module also is used for fingerprint indentification result and real-time clock are carried out mixed processing.
Fingerprint indentification encryption and decryption module also is used for the fingerprint indentification result is carried out scrambled.
The invention solves and carry key, inconvenience and insecurity that loss key etc. brings; With fingerprint indentification as authentication, for the safety of vehicle provides effective guarantee; Many disadvantages that car brought have been avoided borrowing to a certain extent; Identity authentication result and engine controller ECU adopt the cipher mode communication, and real-time update, effectively avoid getting around the generation of authentication.
Description of drawings
Fig. 1 is the system block diagram of controlling car engine ignition by finger print provided by the invention;
Fig. 2 is the block diagram of fingerprint identification encryption and decryption module;
Fig. 3 is an engine controller ECU control flow;
Fig. 4 is the control flow of fingerprint identification encryption and decryption module.
Embodiment
The present invention is by gathering and extract the fingerprint with living body biological characteristic, fingerprint characteristic after the extraction carries out fingerprint indentification with the sample fingerprint of registering, the fingerprint indentification result is mixed the RTS real time system clock as the result of authentication, and (mixing is meant that the result of authentication is a fixing value, when transmission, earlier the real-time clock data value is added in this value back, form fixed value+clock value packet), send automotive engine control ECU (Engine Control Unit) in certain scrambled mode (coded system is a Wei root coding) to by Internal Bus, automotive engine control ECU deciphers this encode data and obtains identification (fingerprint indentification) result, come the power switch of each important module of control system according to this result, engine igniting systems etc. reach the effective control to engine ignition.
Below in conjunction with accompanying drawing, the present invention done describing in further detail:
Fig. 1 is the system block diagram of controlling car engine ignition by finger print provided by the invention.This system comprises power line 1, power switch group 2, car engine ignition module 3, automotive engine control ECU4, real-time clock generation module 5, real-time clock is gathered circuit 6 synchronously, fingerprint collecting sensor 7, fingerprint collecting PL Private Lines 8, fingerprint indentification encryption and decryption module (abbreviation fingerprint module) 9, fingerprint module and automobile controller ECU communication line 10, power switch control wiring 11.Engine controller ECU 4 gathers circuit 6 synchronously with fingerprint indentification encryption and decryption module 9 shared real-time clocks, engine controller ECU4 and fingerprint indentification encryption and decryption module 9 shared real-time clock generation modules 5, engine controller ECU 4 and fingerprint module 9 shared communication lines 6.
Fig. 2 is the block diagram of fingerprint identification encryption and decryption module.This module fingerprint collecting PL Private Lines 8, fingerprint indentification encryption and decryption processor 12, fingerprint indentification encryption and decryption processor and automobile controller ECU communication line 10, button circuit 13, button 14, FLASH storage 15, FLASH storage communication line 16, real-time clock is gathered circuit 6 synchronously;
Fig. 3 and Fig. 4 utilize system shown in Figure 1, and the flow chart by the igniting of engine controller controls automobile transmitter is elaborated respectively below.
Fig. 3 is an ECU control flow chart provided by the invention, comprising:
Step 301:ECU powers on and initialization;
The step 302:ECU fingerprint module that powers on;
Step 303: wait for that fingerprint identification module is ready, the ready step 304 that then forwards to, otherwise to continuing wait;
Step 304: synchronized sampling real-time clock;
Step 305: wait for the fingerprint indentification result, receive that the result then arrives step 306, otherwise continue to wait for;
Step 306: deciphering fingerprint indentification result;
Step 307: analysis result, if step 308 is then arrived in the fingerprint indentification success, otherwise to step 303;
Step 308: give the outage of fingerprint encryption and decryption module;
Step 309: system is ready, and the authentication process is finished (quite passing through with traditional key authentication).
After step 309 was finished, ECU just can carry out ignition operation to the automobile transmitter.
The present invention is the control flow of fingerprint indentification encryption and decryption module provided by the invention, comprising:
Step 401: fingerprint encryption and decryption module powers on;
Step 402: initialization fingerprint encryption and decryption module, deciphering sample fingerprint template;
Step 403: wait for that the user selects registration or fingerprint indentification, fingerprint indentification then arrives step 404, and step 413 is then arrived in registration;
Step 404: ready for sending is given engine controller ECU;
Step 405: synchronized sampling real-time clock;
Step 406: detect finger, detect finger and then arrive step 407, otherwise continue to detect;
Step 407: gather fingerprint;
Step 408: with the sample fingerprint template comparison after the deciphering;
Step 409: comparison result mixes the back enciphered data with clock;
Step 410: forwarding step 409 data encrypted are given engine controller ECU;
Step 411: if compare successfully (being fingerprint matching), then arrive step 412, otherwise to step 404;
Step 412: wait for automobile controller ECU outage fingerprint encryption and decryption module
Step 413: it is full whether register the detection fingerprint region, registered the full step 403 that then arrives, otherwise to step 414;
Step 414: detect finger, detect finger and then arrive step 415, otherwise continue to detect;
Step 415: gather finger twice;
Step 416: twice finger that comparison is gathered;
Step 417: compare successfully (fingerprint matching), then arrive step 418, otherwise to step 414;
Step 418: encrypt and store finger print information in the FLASH storage, jump to top step 403.
Those skilled in the art can also carry out various modifications to above content under the condition that does not break away from the definite the spirit and scope of the present invention of claims.Therefore scope of the present invention is not limited in above explanation, but determine by the scope of claims.
Claims (21)
1. the method for a controlling car engine ignition by finger print is characterized in that, comprising:
Step 1, fingerprint indentification encryption and decryption module take the fingerprint feature and with the registration sample fingerprint carry out fingerprint indentification;
Step 2, fingerprint indentification encryption and decryption module is sent to engine controller with the fingerprint indentification result;
Step 3, engine controller is controlled the car engine ignition module according to described fingerprint indentification result.
2. the method for controlling car engine ignition by finger print as claimed in claim 1 is characterized in that, step 1 also comprises step 21, to fingerprint indentification encryption and decryption module registered fingerprint sample.
3. the method for controlling car engine ignition by finger print as claimed in claim 1 or 2 is characterized in that, in the step 2, and the processing of described fingerprint indentification result through mixing with real-time clock.
4. the method for controlling car engine ignition by finger print as claimed in claim 3 is characterized in that, in the step 2, described fingerprint indentification result also carries out scrambled.
5. as the method for claim 3 or 4 described controlling car engine ignition by finger print, it is characterized in that, comprise before the step 1:
Step 51, engine controller power on and initialization;
Step 52, the engine controller fingerprint indentification encryption and decryption module that powers on.
6. the method for controlling car engine ignition by finger print as claimed in claim 5 is characterized in that, step 1 comprises:
Step 61, initialization fingerprint indentification encryption and decryption module;
Step 62 judges whether to carry out fingerprint indentification, if execution in step 53, otherwise execution in step 21;
Step 63 is to engine controller ready for sending message;
Step 64, the synchronized sampling real-time clock;
Step 65, the feature that takes the fingerprint and with the registration sample compare.
7. the method for controlling car engine ignition by finger print as claimed in claim 6 is characterized in that, comprises between step 2 and the step 3: if compare successfully, fingerprint encryption and decryption module waits for that engine controller is its outage, otherwise execution in step 63.
8. as the method for claim 6 or 7 described controlling car engine ignition by finger print, it is characterized in that, also comprise between step 1 and the step 2: after engine controller receives ready message, the synchronized sampling real-time clock.
9. the method for controlling car engine ignition by finger print as claimed in claim 8, it is characterized in that, in the step 3, if recognition result success, then engine controller controls car engine ignition module is a car engine ignition, otherwise waits for the ready message that receives the transmission of fingerprint indentification encryption and decryption module.
10. the method for controlling car engine ignition by finger print as claimed in claim 8 is characterized in that, in the step 3, if the recognition result success, then engine controller also is the outage of fingerprint indentification encryption and decryption module.
11. the method as claim 2 or 6 described controlling car engine ignition by finger print is characterized in that step 21 comprises:
Step 111 checks whether the sample fingerprint quantity of fingerprint indentification encryption and decryption module stores has reached predetermined value, if, execution in step 62, otherwise execution in step 112;
Step 112 is gathered 2 times sample fingerprint, and is contrasted described sample fingerprint, if contrast successfully, then encrypts back storage sample fingerprint, otherwise gathers fingerprint again.
12. the system of a controlling car engine ignition by finger print comprises the car engine ignition module, automotive engine control is characterized in that, also comprises real-time clock generation module, fingerprint collecting sensor, fingerprint indentification encryption and decryption module; Described real-time clock be connected with fingerprint indentification encryption and decryption module with automotive engine control respectively; Automotive engine control is connected with fingerprint indentification encryption and decryption module; The fingerprint collecting sensor is connected with fingerprint indentification encryption and decryption module; Automotive engine control also is used to receive the fingerprint indentification result that fingerprint indentification encryption and decryption module sends, and controls according to the described fingerprint indentification car engine ignition module of becoming a partner.
13. the system of controlling car engine ignition by finger print as claimed in claim 12 is characterized in that, fingerprint indentification encryption and decryption module comprises: fingerprint indentification encryption and decryption processor, button and FLASH storage; Fingerprint indentification encryption and decryption processor is connected with the FLASH storage with button respectively; The FLASH storage is used to store sample fingerprint; Fingerprint indentification encryption and decryption processor is used for the fingerprint that collects is handled.
14. the system as claim 12 or 13 described controlling car engine ignition by finger print is characterized in that, fingerprint indentification encryption and decryption module also is used for the registered fingerprint sample.
15. the system as claim 12 or 13 described controlling car engine ignition by finger print is characterized in that, fingerprint indentification encryption and decryption module also is used to encrypt the fingerprint indentification result.
16. the system as claim 12 or 13 described controlling car engine ignition by finger print is characterized in that, fingerprint indentification encryption and decryption module also is used for to automotive engine control ready for sending information.
17. the system as claim 12 or 13 described controlling car engine ignition by finger print is characterized in that, automotive engine control also is used to fingerprint indentification encryption and decryption module to power on and/or cuts off the power supply.
18. the system as claim 12 or 13 described controlling car engine ignition by finger print is characterized in that fingerprint indentification encryption and decryption module and automotive engine control also are used for the synchronized sampling real-time clock.
19. the system of controlling car engine ignition by finger print as claimed in claim 14 is characterized in that, fingerprint indentification encryption and decryption module is used for also judging whether the sample fingerprint quantity of FLASH storage reaches predetermined value.
20. the system of controlling car engine ignition by finger print as claimed in claim 14 is characterized in that, fingerprint indentification encryption and decryption module also is used for fingerprint indentification result and real-time clock are carried out mixed processing.
21. the system of controlling car engine ignition by finger print as claimed in claim 20 is characterized in that, fingerprint indentification encryption and decryption module also is used for the fingerprint indentification result is carried out scrambled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101213096A CN101117936A (en) | 2007-09-03 | 2007-09-03 | Method and system for controlling car engine ignition by finger print |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101213096A CN101117936A (en) | 2007-09-03 | 2007-09-03 | Method and system for controlling car engine ignition by finger print |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101117936A true CN101117936A (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101213096A Pending CN101117936A (en) | 2007-09-03 | 2007-09-03 | Method and system for controlling car engine ignition by finger print |
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| CN (1) | CN101117936A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262886A (en) * | 2011-04-21 | 2011-11-30 | 浙江吉利汽车研究院有限公司 | Vehicle DVD (Digital Video Disk) system with handwriting signature identity recognition function and control method |
| CN105262586A (en) * | 2015-10-28 | 2016-01-20 | 铁将军汽车电子有限公司 | Key distribution method and apparatus for automobile theftproof equipment |
| WO2017173823A1 (en) * | 2016-04-06 | 2017-10-12 | 深圳指芯智能科技有限公司 | Fingerprint-controlled flame-producing method and device |
| CN113495922A (en) * | 2020-04-02 | 2021-10-12 | 广州汽车集团股份有限公司 | Vehicle-mounted fingerprint identification system and fingerprint template synchronization method thereof |
-
2007
- 2007-09-03 CN CNA2007101213096A patent/CN101117936A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262886A (en) * | 2011-04-21 | 2011-11-30 | 浙江吉利汽车研究院有限公司 | Vehicle DVD (Digital Video Disk) system with handwriting signature identity recognition function and control method |
| CN105262586A (en) * | 2015-10-28 | 2016-01-20 | 铁将军汽车电子有限公司 | Key distribution method and apparatus for automobile theftproof equipment |
| CN105262586B (en) * | 2015-10-28 | 2018-11-20 | 铁将军汽车电子股份有限公司 | The method for distributing key and device of automobile burglar equipment |
| WO2017173823A1 (en) * | 2016-04-06 | 2017-10-12 | 深圳指芯智能科技有限公司 | Fingerprint-controlled flame-producing method and device |
| CN113495922A (en) * | 2020-04-02 | 2021-10-12 | 广州汽车集团股份有限公司 | Vehicle-mounted fingerprint identification system and fingerprint template synchronization method thereof |
| CN113495922B (en) * | 2020-04-02 | 2023-12-22 | 广州汽车集团股份有限公司 | Vehicle-mounted fingerprint identification system and fingerprint template synchronization method thereof |
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Open date: 20080206 |