CN102262886B - Vehicle DVD (Digital Video Disk) system with handwriting signature identity recognition function and control method - Google Patents
Vehicle DVD (Digital Video Disk) system with handwriting signature identity recognition function and control method Download PDFInfo
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Abstract
The invention discloses a vehicle DVD (Digital Video Disk) system with handwriting signature identity recognition function, which comprises a DVD player, a CAN (Controller Area Network) bus, an engine ignition execution module, ignition controllers and a key USB disk, wherein the DVD player comprises a microprocessor module, a DVD play module, a display screen module, a touch screen, a touch screen identification interface module and a USB interface; the microprocessor module is respectively connected with the DVD play module, display screen module, touch screen identification interface module, USB interface and CAN bus; the CAN bus is connected with the engine ignition execution module; the touch screen is connected with the touch screen identification interface module; the microprocessor module transmits an ignition unlocking command to the CAN bus, and the engine ignition execution module receives the unlocking command from the CAN bus; the engine ignition execution module is connected with the ignition controllers; the ignition controllers are connected in series to serve as a switching element in the automobile ignition circuit; and the microprocessor module reads and writes the USB disk through the USB interface, controls the DVD play module to play video/audio files.
Description
Technical field
The present invention relates to automobile anti-theft lock field, particularly a kind of automobile-used dvd system and control method with the handwritten signature identification that has hand-write recognition function with touch-screen.
Background technology
more and more universal along with automobile, the stolen situation of automobile also gets more and more, in order to prevent that automobile is stolen, how to confirm that real car owner has become a larger difficult problem, various schemes are also arranged at present, comprise fingerprint recognition etc., Chinese utility model patent for example, publication number: 201751248U, open day: on 02 23rd, 2011, utility model title: a kind of with the fingerprint of bus functionality and the vehicle startup system of speech recognition, this application case discloses a kind of automobile must be by after fingerprint and the dual identification of voice, the scheme that motor car engine could start, but fingerprint identification device is special-purpose theft preventing method, the fingerprint recognition component shape is similar, be well known, easily expose its antitheft intention, thereby easily destroyed by stealer and can not reach antitheft purpose.
Summary of the invention
The present invention overcomes shortcoming of the prior art, and a kind of automobile-used DVD player and control method with the handwritten signature identification is provided.
technical scheme of the present invention is: a kind of automobile-used dvd system with hand-written identification, it is characterized in that: described dvd system comprises DVD player, the CAN bus, the engine ignition execution module, ignition controller, the key USB flash disk, wherein DVD player comprises: microprocessor module, the DVD playing module, display panel module, touch-screen, touch-screen recognition interface module, USB interface, wherein microprocessor module respectively with the DVD playing module, display panel module, touch-screen recognition interface module, USB interface and CAN bus connect, the CAN bus is connected with the engine ignition execution module, touch-screen is connected with touch-screen recognition interface module, touch-screen perception touch information, touch-screen recognition interface module converts this touch information to information that microprocessor module needs, microprocessor module is presented at display panel module with the respective handling result, the microprocessor module unlock command of lighting a fire sends to the CAN bus, the engine ignition execution module receives unlock command from the CAN bus, the engine ignition execution module is connected with ignition controller, ignition controller series connection as switch block in the automobile igniting circuit loop, microprocessor module is read and write USB flash disk by USB interface, microprocessor module is controlled the DVD playing module and is carried out the broadcast of audio/video file.
the present invention realizes the broadcast of virtual push button control DVD player with touch-screen and display screen, merged hand-written identification in seemingly common DVD player, key USB flash disk Vehicle Anti-Theft System, system uses touch-screen as the equipment of man-machine friendship, realize handwriting recognition, by clicking the flow process of virtual push button or handwritten signature control system, and by CAN bus control engine igniting execution module, ignition controller is opened, firing key is got to " startup " gear, engine could be lighted a fire, after automobile increases system of the present invention, the startup of motor car engine is by automobile central control system, 3 aspects of described dvd system and ignition lock determine, the driver is by the identification of central control system, described dvd system identification success, with this car firing key, ignition lock is got to ignition location, three conditions satisfy the ability starting engine simultaneously, the theftproof performance of automobile further is provided, the present invention has system independence, therefore the present invention realizes maintaining secrecy and antitheft function.
Described display panel module is LCD or LED display module.
Described touch-screen is capacitance induction touch panel or electric resistance touch screen.
For realizing purpose of the present invention, the present invention also provides a kind of control method of the automobile-used dvd system with hand-written identification, and described control method comprises:
Vehicle register flow path: new car is tested oneself, first handwritten signature of typing, generated administrator key USB flash disk, registration; The content of described handwritten signature comprises the Chinese character that obtains of identification and the habits information of wieling the pen of signer; The described habits information of wieling the pen comprises the velocity characteristic information of wieling the pen, the pressure characteristic information of wieling the pen, the trajectory shape characteristic information of wieling the pen;
In described vehicle register flow path, described to the new car step of testing oneself, for microprocessor module checks vehicle registered symbol in internal memory, first handwritten signature of typing, be that the keeper signs, the keeper has all keeper's power of vehicle, generates the administrator key USB flash disk, and microprocessor module is revised as registration with the vehicle registered symbol;
Vehicle release flow process: for registered vehicle, carry out the identification of the hand-written signature of key USB flash disk or keeper or driver and checking, be verified, described microprocessor module by direct or indirect lighting up procedure to the ignition controller release;
Described direct-fire step comprises: microprocessor module sends the igniting unlock command to the CAN bus, and the engine ignition execution module receives the igniting unlock command from the CAN bus and controls the ignition controller release;
Described indirect lighting up procedure comprises: microprocessor module sends signature identification to the CAN bus and passes through information, central control system receives described signature identification from the CAN bus and passes through information, central control system sends the igniting unlock command to the CAN bus again, and the engine ignition execution module receives the igniting unlock command from the CAN bus and controls the ignition controller release.
After described dvd system was completed vehicle register flow path and vehicle release flow process, car key was got to " startup " gear, engine ignition;
Described control method also comprises: DVD uses or change signature flow process: carry out broadcast and the signature change of DVD player.
Because described control method comprises vehicle register flow path and vehicle release flow process, so the present invention has the bidirectional recognition of vehicle self identity and driver identity; The content of described handwritten signature comprises: the Chinese character that identification obtains and the custom of wieling the pen of signer, and recordable hand-written feature rich is so the reliability of hand-written identification is high;
After described signature identification step passed through, ignition controller release step had direct-fire step or the selection of lighting up procedure indirectly, has independent burglary-resisting system of one's own or unites with central control system the dirigibility that consists of burglary-resisting system so the present invention has.
Because described control method also comprises: DVD uses or change signature flow process, so the present invention is reliable, the complete automobile-used dvd system with handwritten signature identification.
When the habits information of wieling the pen of described signer comprises handwritten Chinese character, record the breadth extreme of the track of the finger contact touch-screen in each stroke, get the breadth extreme sum of all strokes as wieling the pen habits information, finger is firmly large and the touch-screen contact area is large, person's handwriting is just wide, and the writer can have unique signature identification record like this; The accuracy of identification of the habits information of wieling the pen is adjusted in the setting of the resolution by adjusting touch-screen, and resolution is high, and precision is high, but poor repeatability; Resolution is regulated by software, selects suitable resolution.
Described key USB flash disk comprises encryption folder, this document folder is not reproducible, and close file is deposited this car special mark, handwritten signature information, and described microprocessor module prestores corresponding password and read-write software, can read this document folder, the content that common pc computer can not the readwrite key USB flash disk.
The vehicle register flow path comprises the following steps:
(1) whether S12 to look into vehicle registered, and microprocessor module checks whether the content of internal memory vehicle registered symbol position is 0, if be 0 to be exactly new car, new car need be registered, if registered, the existing keeper of this car, change step S19 over to;
(2) USB flash disk is inserted in the S13 prompting;
(3) S14 judges USB flash disk this car is special-purpose, and mistake is returned to step S13;
(4) S15 judges whether USB flash disk signs, unregistered vehicle, and USB flash disk no name record is signed, returns to step S13;
(5) S16 prompting keeper handwritten signature;
(6) S17 reads handwritten signature;
(7) S18 preserves keeper's signature, the vehicle registered symbol is revised, comprise: microprocessor module is saved in microprocessor module Administrator Info memory location with keeper's handwritten signature information, and the memory location of signing in the key USB flash disk, is revised as the vehicle registered symbol registered;
(8) S19 vehicle register flow path finishes.
Described step (3) S14 judge USB flash disk whether the step of this car special use comprise: the content that reads this car of key USB flash disk special mark designated memory cell, by the security algorithm computing of self, the content of this car special mark memory location of appointment in the result of computing and microprocessor module relatively, identical, be this car private key USB flash disk, described self security algorithm is a kind of cryptographic algorithm that is pre-stored in key USB flash disk or microprocessor module.
Vehicle release flow process comprises the following steps:
(1) S22 prompting signature or insertion USB flash disk, change step S23 or step S25 over to;
(2) S23 reads handwritten signature, and directly handwritten signature can replace the key USB flash disk to carry out identification;
(3) S24 checking handwritten signature, with record in signature and microprocessor module in the key USB flash disk relatively, mistake is returned to step S22, and is correct, changes step S27 over to;
(4) S25 reads USB flash disk;
(5) S26 checks the key USB flash disk this car is special-purpose and check key USB flash disk signature, if mistake is returned to step S22;
(6) the S27 identification is verified, the ignition controller release;
(7) S28 vehicle release flow process finishes;
(8) S29 shows " vehicle can start ";
(9) S30 changes signature change or DVD use flow process over to;
Described signature change or DVD use flow process to comprise:
(1) S31 judges whether keeper of current registrant, judges whether to have the authority of change signature, and is no, changes step S50 over to;
(2) S32 shows " change signature " and " DVD use " button, selects the change signature to change step S33 over to, selects DVD to play and changes step S50 over to;
(3) S33 change signature flow process begins;
(4) S34 shows current signature list;
(5) S35 reads the signature selection;
(6) S36 shows " deleting signature " and " change or interpolation signature " button, and selection " deletion signature " button changes step S44 over to, and selection " change or interpolation signature " button changes step S37 over to;
(8) S37 change or interpolation signature flow process begin;
(9) the key USB flash disk is inserted in the S38 prompting;
(10) S39 judges that whether the key USB flash disk is correct, no, returns to step S38;
(11) S40 prompting handwritten signature;
(12) S41 reads handwritten signature;
(13) S42 preserves signature;
(14) S43 change or interpolation signature flow process finish, and return to step S32;
(15) S44 deletion signature flow process begins;
(16) S45 prompting keeper signature;
(17) S46 authentic administrator signature, the incorrect step S45 that returns;
(18) S47 confirms the deletion signature, and is no, changes step S49 over to;
(19) S48 deletion signature;
(20) S49 deletion signature flow process finishes, and returns to step S32;
(21) the S50DVD playing flow begins, and the operator clicks the virtual push button operation by the common DVD working rule.
The invention has the beneficial effects as follows:
1. the present invention has system independence, on the basis of automobile middle control burglary-resisting system, increase independently automotive theft proof system parts of system of the present invention conduct, with central control system, ignition lock, engine ignition is operated, consist of the relation of logical “and”, if the driver has passed through the checking of middle control burglary-resisting system, fail by identification checking of the present invention, even car key is got to ignition location, due to not conducting of ignition controller, engine can not start yet;
2. the key USB flash disk has this car information and driver information, this car information need and contrast with middle canned data through the security algorithm computing of self, and canned data contrast in driver's handwritten signature information and microprocessor module, multiple-authentication, reliability is high, thereby has increased the security performance of automobile;
3. the present invention can identify checking to driver's identity by driver's handwriting mode, and the custom of wieling the pen when hand-written is recorded in handwritten signature, and confidentiality and reliability are high;
4. the present invention can also coordinate by the CAN bus with automobile central control system and can build the more antitheft outpost of the tax office, such as, fiery controller release step is selected indirect lighting up procedure;
5. described key USB flash disk has encryption folder, and is not reproducible, the security that has improved vehicle;
6. it is more generous that the virtual push button of touch-screen makes the DVD outward appearance;
7. the present invention can be used for new car or used car transformation, and used car is only needed very little change.
Description of drawings
Fig. 1: a kind of hardware block diagram of the present invention;
In Fig. 1: 1-DVD player, 2-CAN bus, 3. engine ignition execution module, 4. ignition controller, 5. microprocessor module, 6.DVD playing module, 7. display panel module, 8. touch-screen, 9. touch-screen recognition interface module, 10.USB interface.
Fig. 2: the block diagram of a kind of vehicle register flow path of the present invention;
Fig. 3: the block diagram of a kind of vehicle release flow process of the present invention;
Fig. 4: the block diagram of a kind of sign change or DVD use flow process of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and embodiment:
Embodiment:
a kind of automobile-used dvd system with hand-written identification, referring to Fig. 1, described dvd system comprises DVD player 1, CAN bus 2, engine ignition execution module 3, ignition controller 4, the key USB flash disk, wherein DVD player comprises: microprocessor module 5, DVD playing module 6, display panel module 7, touch-screen 8, touch-screen recognition interface module 9, usb 10, described touch-screen 8 is electric resistance touch screen, touch-screen 8 is write the pressure sensitive function, microprocessor module 5 respectively with DVD playing module 6, LCD display module 7, touch-screen recognition interface module 9, usb 10 and CAN bus 2 connect, CAN bus 2 is connected with engine ignition execution module 3, touch-screen 8 is connected with touch-screen recognition interface module 9, touch-screen perception touch information, touch-screen recognition interface module 9 converts this touch information to information that microprocessor module 5 needs, microprocessor module 5 is presented at display panel module 7 with the respective handling result, microprocessor module 5 unlock command of lighting a fire sends to CAN bus 2, engine ignition execution module 3 receives unlock command from CAN bus 2, engine ignition execution module 3 is connected with ignition controller 4, ignition controller 4 is connected in the automobile igniting circuit loop as switch block, microprocessor module 5 is by usb 10 read-write USB flash disk, microprocessor module 5 is controlled DVD playing module 6 and is carried out the broadcast of audio/video file.
The control method of the present embodiment comprises:
Vehicle register flow path: new car is tested oneself, first handwritten signature of typing, generated administrator key USB flash disk, registration; Described handwritten signature comprises the Chinese character that obtains of identification and the custom of wieling the pen of signer; When the custom of wieling the pen of described signer is handwritten Chinese character, record the breadth extreme of the track of the finger contact touch-screen in each stroke, get the breadth extreme sum of all strokes as wieling the pen habits information, the setting of the resolution by adjusting touch-screen, adjust the accuracy of identification of the habits information of wieling the pen, permissible error is set to less than 30%, the hand-written label of instant input are wield the pen habits information name and sample error for less than 30% being exactly that the match is successful, and this precision can be adjusted by adjustment soft-error parameter.
Described key USB flash disk comprises encryption folder, and this document folder content is not reproducible, and encryption folder is deposited this car special mark, handwritten signature information, and described microprocessor module can be read and write this document folder.
Described vehicle register flow path, purpose are whether check vehicles be new car, check that this car of key USB flash disk identity is special-purpose, and typing keeper handwritten signature generates the administrator key USB flash disk, and the vehicle registered symbol of new car is set to registered.
Described vehicle register flow path comprises the following steps, referring to Fig. 2:
Step S11, the vehicle register flow path begins;
Whether registered step S12 looks into vehicle, checks whether the content of front 256 of microprocessor module 5 internal memories the 100th sector is 0, if not 0, changes step S21 over to;
Step S13, USB flash disk is inserted in prompting;
Step S14, whether this car is special-purpose to judge USB flash disk, the content of front 256 of the 100th sector of inspection USB flash disk is by the security algorithm computing that is pre-stored in microprocessor module, whether result meets the content of rear 256 of the 100th sector of microprocessor module 5 internal memories, the content of associated internal memory arranges when vehicle dispatches from the factory and completes, if mistake is returned to step S13; Described security algorithm is: ((a〉〉 128) ^a)＜＜128-1==0, if the content of front 256 is a, as long as a satisfies (((a〉〉 128)) ^a)＜＜128-1==0 just meets the requirements, implication is as long as the low 1-127 of the high 129-255 position of a and a is if the same, and 0 and 128 opposite is just satisfied the algorithm requirement.
Step S15 judges whether USB flash disk signs, checks whether the content of USB flash disk second sector is 0, and this car private key USB flash disk must be empty, just can carry out the new car registration, is not 0, returns to step S13;
Step S16, prompting keeper handwritten signature;
Step S17 reads handwritten signature;
Step S18 preserves keeper's handwritten signature, and the vehicle registered symbol is revised;
Comprise: microprocessor module is saved in keeper's handwritten signature information the 200th sector of microprocessor module internal memory, and key USB flash disk second sector, with accommodating 1 in front 256 of the 100th sector of Installed System Memory, information of vehicles memory location, be registered with vehicle mark simultaneously;
Step S19, the vehicle register flow path finishes.
Vehicle release flow process: for registered vehicle, carry out the hand-written signature identification of key USB flash disk or keeper or driver and checking, be verified, described microprocessor module 5 adopts the direct-fire step to ignition controller 4 releases, step is as follows: microprocessor module 5 sends the igniting unlock command to CAN bus 2, engine ignition execution module 3 receives the igniting unlock commands from CAN bus 2 and controls ignition controller 4 releases, and to be ignition controller 4 be connected on conducting in the automobile igniting circuit loop as switch block in described ignition controller 4 releases.
Described vehicle release flow process comprises the following steps, referring to Fig. 3:
Step S21, the vehicle register flow path begins;
Step S22, prompting signature or insertion USB flash disk are selected signature, change step S23 over to, select to insert USB flash disk, change step S25 over to;
(2) S23 reads handwritten signature;
(3) S24 checking handwritten signature, with sample in handwritten signature and microprocessor module relatively, mistake is returned to step S22, and is correct, changes step S27 over to;
(4) S25 reads USB flash disk;
(5) S26 checks the key USB flash disk this car is special-purpose and check key USB flash disk signature, and with corresponding contents comparison in this car special mark in the key USB flash disk and signature and microprocessor module, mistake is returned to step S22;
Step S27, identification is verified, fiery controller 4 releases;
Step S28, the vehicle release is completed;
Step S29 shows " vehicle can start ";
Step S30, signature change or DVD use flow process to begin;
After described dvd system was completed vehicle register flow path and vehicle release flow process, car key was got to " startup " gear, engine ignition;
Described control method also comprises: DVD uses or change signature flow process: carry out broadcast and the signature change of DVD player.
Described signature change or DVD use flow process to comprise the following steps, and referring to Fig. 4: step S30, change signature or DVD use flow process to begin;
Step S31 judges whether keeper of current login, if not, changes step S49 over to, only has the keeper can enter change or adds signature flow process S33;
Step S32 shows " change signature " and " DVD use " button, selects " the DVD use " button, change step S49 over to;
Step S33 begins change or adds the signature flow process;
Step S34 shows current signature list;
Step S35 selects signature;
Step S36 shows " deletion signature " and " change or interpolation signature " button;
Step S37 selects " change or interpolation signature " button, if select " deletion signature " button to change step S44 over to;
Step S38, key USB flash disk and handwritten signature are inserted in prompting;
Step S39 judges whether the key USB flash disk is correct, and whether special-purpose, the signature of this car is with selected consistent or be 0 for the key USB flash disk, and when interpolation was signed, the signature in the key USB flash disk is 0, and was incorrect, returns to step S38;
Step S40, handwritten signature;
Step S41, signature is completed;
Step S42 preserves signature;
Step S43, change or interpolation signature flow process finish, and return to step S32;
Step S44, " deletion signature " button;
Step S45, prompting keeper signature;
Step S46, does the keeper sign correctly? the incorrect step S45 that returns;
Step S47, the deletion signature;
Step S48, the deletion signature finishes, and returns to step S32;
Step S49, DVD uses flow process, shows virtual push button, uses DVD player 1 by the using method operation of common DVD machine.
After described ignition controller release conducting, firing key is got to " startup " gear, engine ignition.
Embodiment 2:
as different from Example 1, the step of ignition controller release is indirect lighting up procedure, microprocessor module sends signature identification to the CAN bus and passes through information, central control system receives described signature identification from the CAN bus and passes through information, central control system sends the igniting unlock command to the CAN bus again, the engine ignition execution module receives the igniting unlock command from the CAN bus and controls the ignition controller release, the dvd system of embodiment 2 is associated with the vehicle central control system, if central control system is destroyed, be verified can not starting engine in the dvd system handwritten signature, all the other are identical with embodiment 1.
The present invention has the checking of key USB flash disk, handwritten signature identification checking double verification function, the key USB flash disk has anti-copy function, has improved the anti-theft capability of vehicle, the touch-screen dvd system, virtual push button, outward appearance is more generous, and control method has independently control system scheme such as embodiment 1 and the control system scheme that is associated with central control system such as embodiment 2, has flexible and changeable characteristic, therefore anti-theft feature is strong, and the present invention can be advantageously used in new car, also can be used for the used car upgrading.
Claims (10)
1. automobile-used dvd system with handwritten signature identification, it is characterized in that: described dvd system comprises DVD player (1), CAN bus (2), engine ignition execution module (3), ignition controller (4), the key USB flash disk, wherein DVD player comprises: microprocessor module (5), DVD playing module (6), display panel module (7), touch-screen (8), touch-screen recognition interface module (9), USB interface (10), wherein microprocessor module (5) respectively with DVD playing module (6), display panel module (7), touch-screen recognition interface module (9), USB interface (10) and CAN bus (2) connect, CAN bus (2) is connected with engine ignition execution module (3), touch-screen (8) is connected with touch-screen recognition interface module (9), touch-screen (8) perception touch information, touch-screen recognition interface module (9) converts this touch information to information that microprocessor module (5) needs, microprocessor module (5) is presented at display panel module (7) with the respective handling result, microprocessor module (5) unlock command of lighting a fire sends to CAN bus (2), engine ignition execution module (3) receives unlock command from CAN bus (2), engine ignition execution module (3) is connected with ignition controller (4), ignition controller (4) is connected in the automobile igniting circuit loop as switch block, microprocessor module (5) is by USB interface (10) read-write USB flash disk, microprocessor module (5) is controlled DVD playing module (6) and is carried out the broadcast of audio/video file,
Also comprise the vehicle register flow path: new car is tested oneself, first handwritten signature of typing, generated administrator key USB flash disk, registration; The content of described handwritten signature comprises the Chinese character that obtains of identification and the habits information of wieling the pen of signer;
Also comprise vehicle release flow process: for registered vehicle, carry out the identification of the hand-written signature of key USB flash disk or keeper or driver and checking, be verified, described microprocessor module by direct or indirect lighting up procedure to ignition controller (4) release.
2. the automobile-used dvd system with handwritten signature identification according to claim 1, it is characterized in that: described display panel module (7) is LCD or LED display module.
3. a kind of automobile-used dvd system with handwritten signature identification according to claim 1 and 2, it is characterized in that: described touch-screen (8) is capacitance induction touch panel (8) or electric resistance touch screen (8).
4. control method that is used for controlling the automobile-used dvd system with handwritten signature identification claimed in claim 1, it is characterized in that: described control method comprises: dvd system carries out the vehicle registration according to the vehicle register flow path, and dvd system carries out the vehicle release according to vehicle release flow process; Car key is got to " startup " gear, engine ignition;
Described control method also comprises: DVD uses or change signature flow process and judge the whether step of this car special use of key USB flash disk; Described DVD uses or change signature flow process is carried out broadcast and the signature change of DVD player.
5. the control method of the automobile-used dvd system with handwritten signature identification according to claim 4, it is characterized in that: when the habits information of wieling the pen of described signer comprises handwritten Chinese character, record the breadth extreme of the track of the finger contact touch-screen in each stroke, get the breadth extreme sum of all strokes as wieling the pen habits information, the accuracy of identification of habits information is adjusted in the setting of the resolution by adjusting touch-screen.
6. the control method of according to claim 4 or 5 described automobile-used dvd systems with handwritten signature identification, it is characterized in that: described key USB flash disk comprises encryption folder, this document folder content is not reproducible, encryption folder is deposited this car special mark, handwritten signature information, and described microprocessor module can be read and write this document folder.
7. the control method of the automobile-used dvd system with handwritten signature identification according to claim 4 is characterized in that:
Described vehicle register flow path comprises the following steps:
(1) whether S12 to look into vehicle registered, is to change step S19 over to;
(2) USB flash disk is inserted in the S13 prompting;
(3) S14 judges USB flash disk this car is special-purpose, no, returns to step S13;
(4) S15 judges whether USB flash disk signs, signs, and returns to step S13;
(5) S16 prompting keeper handwritten signature;
(6) S17 reads handwritten signature;
(7) S18 preserves keeper's signature, and the vehicle registered symbol is revised;
(8) S19 vehicle register flow path finishes.
8. the control method of the automobile-used dvd system with handwritten signature identification according to claim 4, it is characterized in that: described judge the key USB flash disk whether the step of this car special use comprise: the content that reads this car of key USB flash disk special mark designated memory cell, by the security algorithm computing of self, the content of this car special mark memory location of appointment in the result of computing and microprocessor module relatively, identical, be this car private key USB flash disk.
9. the control method of the automobile-used dvd system with handwritten signature identification according to claim 4, it is characterized in that: described vehicle release flow process comprises the following steps:
(1) S22 prompting signature or insertion USB flash disk, select signature, changes step S23 over to, selects to insert USB flash disk, changes step S25 over to;
(2) S23 reads handwritten signature;
(3) S24 checking handwritten signature, mistake is returned to step S22, and is correct, changes step S27 over to;
(4) S25 reads USB flash disk;
(5) S26 checks the key USB flash disk this car is special-purpose and check key USB flash disk signature, and mistake is returned to step S22;
(6) identification of S27 signature is verified, and gives ignition controller (4) release;
(7) S28 vehicle release flow process finishes;
(8) S29 shows " vehicle can start ";
(9) S30 changes change signature or DVD use flow process over to;
10. the control method of the automobile-used dvd system with handwritten signature identification according to claim 4 is characterized in that:
Described change signature or DVD use flow process to comprise:
(1) S31 judges whether keeper of current registrant, judges whether to have the authority of change signature, and is no, changes step S50 over to;
(2) S32 shows " change signature " and " DVD use " button, selects the change signature to change step S33 over to, selects DVD to play and changes step S50 over to;
(3) S33 change signature flow process begins;
(4) S34 shows current signature list;
(5) S35 reads the signature selection;
(6) S36 shows " deleting signature " and " change or interpolation signature " button, and selection " deletion signature " button changes step S44 over to, and selection " change or interpolation signature " button changes step S37 over to;
(8) S37 change or interpolation signature flow process begin;
(9) the key USB flash disk is inserted in the S38 prompting;
(10) S39 judges that whether the key USB flash disk is correct, no, returns to step S38;
(11) S40 prompting handwritten signature;
(12) S41 reads handwritten signature;
(13) S42 preserves signature;
(14) S43 change or interpolation signature flow process finish, and return to step S32;
(15) S44 deletion signature flow process begins;
(16) S45 prompting keeper signature;
(17) S46 authentic administrator signature, the incorrect step S45 that returns;
(18) S47 confirms the deletion signature, and is no, changes step S49 over to;
(19) S48 deletion signature;
(20) S49 deletion signature flow process finishes, and returns to step S32;
(21) the S50DVD playing flow begins, and the operator clicks the virtual push button operation by the common DVD working rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100652 CN102262886B (en) | 2011-04-21 | 2011-04-21 | Vehicle DVD (Digital Video Disk) system with handwriting signature identity recognition function and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100652 CN102262886B (en) | 2011-04-21 | 2011-04-21 | Vehicle DVD (Digital Video Disk) system with handwriting signature identity recognition function and control method |
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| Publication Number | Publication Date |
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| CN102262886A CN102262886A (en) | 2011-11-30 |
| CN102262886B true CN102262886B (en) | 2013-11-06 |
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| CN 201110100652 Active CN102262886B (en) | 2011-04-21 | 2011-04-21 | Vehicle DVD (Digital Video Disk) system with handwriting signature identity recognition function and control method |
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| CN103465866A (en) * | 2013-09-25 | 2013-12-25 | 北京汽车股份有限公司 | Vehicle starting control method, vehicle starting control device and vehicle |
| CN106515444A (en) * | 2016-11-15 | 2017-03-22 | 南宁市浩发科技有限公司 | Automobile drunk driving detecting system |
| US11294997B2 (en) * | 2018-12-18 | 2022-04-05 | Infineon Technologies Ag | Pairing devices to an authentication device by sensor fingerprinting |
| CN110083301A (en) * | 2019-04-29 | 2019-08-02 | 珠海纳金科技有限公司 | A kind of handwritten signature unlocking system and method |
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| CN101117936A (en) * | 2007-09-03 | 2008-02-06 | 成都方程式电子有限公司 | Method and system for controlling car engine ignition by finger print |
| CN101770657A (en) * | 2008-12-31 | 2010-07-07 | 吉林市北华航天科技有限公司 | Intelligent identity identification system of vehicle |
| CN201489315U (en) * | 2009-08-08 | 2010-05-26 | 吉林大学 | On-board voice recognition control system |
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