CN101122195A - Automobile wireless remote control door lock control method - Google Patents
Automobile wireless remote control door lock control method Download PDFInfo
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- CN101122195A CN101122195A CNA2007101322036A CN200710132203A CN101122195A CN 101122195 A CN101122195 A CN 101122195A CN A2007101322036 A CNA2007101322036 A CN A2007101322036A CN 200710132203 A CN200710132203 A CN 200710132203A CN 101122195 A CN101122195 A CN 101122195A
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Abstract
The invention relates to a control method of a wireless remote lock used in cars, which includes the producing of transferring information, the receiving of the transferring information, and the confirming of the transferring information. By using the skipping coding technology, the invention adopts a nonlinear encryption algorithmic to encrypt the original code to produce a cod control signal with high confidentiality in 66-number long; and the code produced each time is unique and unrepeatable. The system has the function of key learning and memory and if the remote is lost, the system can learn a new remote and delete the original remote, so, the system is going to refuse to read the original remote, if the original remote is used by someone, thereby guaranteeing the property safety of the customers.
Description
Technical field
The present invention relates to a kind of automobile wireless remote control gate lock field, be specifically related to a kind of control method of safe antitheft of automobile wireless remote control gate lock.
Background technology
The development of social modernization makes that the quantity of automobile is more and more, and automobile has become in people's daily life necessary tool.Along with the progress of science and technology, the wireless remote-control system range of application is also enlarging, and has been widely used at present on the door-locking system of automobile, has so not only made things convenient for the car owner, has also increased the safety of automobile door lock simultaneously.Present automobile remote-control device encryption technology is mainly the fixed code encryption technology.It is to adopt special coding/decoding chip that fixed code is encrypted the wireless remote control recognition technology, different conditions by the decoding chip address bit that changes coding chip and match with it, that is: address bit is unsettled by selecting, bonding, connect power supply just the various combination of (ternary coding chip) obtain different key amounts, have only the address bit state of the address bit of coding chip and decoding chip in full accord, decoding chip could output signal.The multidigit address date password that transmits and receives is a key of confirming user validation, because address code uses the manual establishment of producer fixing by chip, multidigit address date password is changeless code data in using from now on.In order to improve the security performance of system, the method for generally all taking to increase the figure place of address bit or improving the permutation and combination variable.Generally there is the 6-18 position position, coded address of fixed code chip, and the coding variable is 4 kinds of states to the maximum.And the automobile remote-control burglar alarm normally used be the ternary coding/decoding chip in 8 locations of 18 pin encapsulation.As VD5026/27, AX5326/27, PT2262/72 etc.Though the regular coding technology is practical, but its Secret key amount little (only 6～18 of Password Lengths), make confidentiality very poor, promptly code data can be intercepted and captured and successfully deciphering by means such as copying apparatus, password scanner, computer prediction password combination at present, property safety to the car owner has huge hidden danger, and the use of existing controlled in wireless door lock allows the people worry Zhong Zhong that becomes.
Summary of the invention
At the deficiency of existing wireless remote control door lock safety, designed and developed out and utilized the frame hopping coding techniques, promoted the control method of the automobile wireless remote control gate lock of automobile burglar ability widely.
The present invention is achieved by the following technical solutions:
A kind of control method of automobile wireless remote control gate lock comprises the generation of data transmission, the reception and the data transmission decoding affirmation of data transmission;
The production method of described data transmission includes following steps:
(1) enabling signal that pushes button produces circuit, its EEPROM restores after synchronometer numerical value among the inner IC can add 1 automatically, 16bits synchronometer numerical value then, 10bits identification code, 4bits function key and 2bits overflow indicating bit and utilize 64bits encrypt/decrypt password among the EEPROM, encrypt the back and produce one group of new 32bits frame hopping, the 34bits fixed code among 32bits frame hopping and the EEPROM is combined into the 66bits numeric data code; The 34bits fixed code includes 28bits sequence number, 4bits function key and 2bits and overflows indicating bit;
(2) the new 66bits numeric data code that produces has added lead data, guiding synchronously, forms pwm data, by the external wireless radiating circuit pwm data is launched;
The method of reseptance of described data transmission includes following steps:
(1) utilizes the guide of lead data, prepare to receive the 66bits numeric data code;
(2) utilize guiding synchronously to proofread and correct, and obtain the time of TE as receiving velocity;
(3) at first rising edge of detection signal, wait for whether 1/2 TE took a sample to the signal currency immediately and tests after the time is 1, if test be 0 then receive data failure, if failure then stop, if successfully continue next step operation;
(4) wait for that 1TE after the time, takes a sample as data bit to the signal currency immediately, if test is 0 then receives data failure, terminating operation; If test is 1, then expression receives the data success, continues next step operation;
(5) repeat above-mentioned 3～4 action, receive up to finishing the 66bits numeric data code;
Described data transmission decoding confirms to include following steps:
(1) receive one group of effective 66bits numeric data code after, whether the 28bits sequence number that check to receive in the fixed code of 66bits numeric data code identical with sequence number in the EEPROM database, if then shut-down operation inequality then continues next step as if identical;
(2) in the EEPROM database, take out 64bits encrypt/decrypt password;
(3) the 32bits frame hopping that receives is utilized 64bits encrypt/decrypt password deciphered and produce four kinds of data: function key assignments, overflow, identification code and synchronometer numerical value;
(4) in the identification code after the check deciphering and the EEPROM database low 10 of sequence number whether equate, if unequal then shut-down operation then continues next step as if equal;
(5) relatively whether the function key assignments after the deciphering equates with function key assignments in the 34bits fixed code, if unequal then shut-down operation then continues next step as if equal;
(6) whether the variation of inspection " synchronometer numerical value " is correct, the synchronometer numerical value after the decoding compared with the synchronization value in the EEPROM database, if the data that the former subtracts the latter are then carried out the represented function of function key greater than 0 and less than 4; Synchronometer numerical value after will deciphering simultaneously deposits the EEPROM database in, if ineligible, the synchronometer numerical value after then will deciphering is temporarily preserved, and waits at short notice simultaneously receiving next group PWM data transmission.
A kind of control method of automobile wireless remote control gate lock, described data transmission decoding confirms that the back is further comprising the steps of:
(1) if receives one group of pwm data at short notice again, then operate according to data transmission decoding affirmation step 1～6 once more, if the simultaneous techniques value after the decoding and the synchronometer numerical value of current temporary transient preservation satisfy data that the former subtracts the latter greater than 0 and less than 4, then carry out the represented function of function key; Synchronometer numerical value after will deciphering simultaneously deposits the EEPROM database in.
(2), then do not keep the synchronometer numerical value after the decoding, and do not carry out any operation if can't receive one group of pwm data that conforms at short notice.
The frame hopping coding techniques of the present invention exploitation is to adopt a kind of non-linear AES that former code is carried out accidental enciphering, is the cipher control signal of 66 high level security thereby produce length, and each password of launching all is unique, and is unduplicated.System has the key learning and memory function, if remote controller is lost, system can relearn new remote controller, and original remote controller promptly is wiped free of, even other people use original remote controller, system also can refuse to read, thereby has guaranteed client's property safety.
The specific embodiment
The control method of automobile wireless remote control gate lock of the present invention comprises the generation of data transmission, the reception and the data transmission decoding affirmation of data transmission.
The production method of described data transmission includes following steps:
(1) enabling signal that pushes button produces circuit, its EEPROM restores after synchronometer numerical value among the inner IC can add 1 automatically, 16bits synchronometer numerical value then, 10bits identification code, 4bits function key and 2bits overflow indicating bit and utilize 64bits encrypt/decrypt password among the EEPROM, encrypt the back and produce one group of new 32bits frame hopping, the 34bits fixed code among 32bits frame hopping and the EEPROM is combined into the 66bits numeric data code; The 34bits fixed code includes 28bits sequence number, 4bits function key and 2bits and overflows indicating bit;
(2) the new 66bits numeric data code that produces has added lead data, guiding synchronously, forms pwm data, by the external wireless radiating circuit pwm data is launched;
The method of reseptance of described data transmission includes following steps:
(1) utilizes the guide of lead data, prepare to receive the 66bits numeric data code;
(2) utilize guiding synchronously to proofread and correct, and obtain the time of TE as receiving velocity;
(3) at first rising edge of detection signal, wait for whether 1/2 TE took a sample to the signal currency immediately and tests after the time is 1, if test be 0 then receive data failure, if failure then stop, if successfully continue next step operation;
(4) wait for that 1TE after the time, takes a sample as data bit to the signal currency immediately, if test is 0 then receives data failure, terminating operation; If test is 1, then expression receives the data success, continues next step operation;
(5) repeat above-mentioned 3～4 action, receive up to finishing the 66bits numeric data code;
Described data transmission decoding confirms to include following steps:
(1) receive one group of effective 66bits numeric data code after, whether the 28bits sequence number that check to receive in the fixed code of 66bits numeric data code identical with sequence number in the EEPROM database, if then shut-down operation inequality then continues next step as if identical;
(2) in the EEPROM database, take out 64bits encrypt/decrypt password;
(3) the 32bits frame hopping that receives is utilized 64bits encrypt/decrypt password deciphered and produce four kinds of data: function key assignments, overflow, identification code and synchronometer numerical value;
(4) in the identification code after the check deciphering and the EEPROM database low 10 of sequence number whether equate, if unequal then shut-down operation then continues next step as if equal;
(5) relatively whether the function key assignments after the deciphering equates with function key assignments in the 34bits fixed code, if unequal then shut-down operation then continues next step as if equal;
(6) whether the variation of inspection " synchronometer numerical value " is correct, the synchronometer numerical value after the decoding compared with the synchronization value in the EEPROM database, if the data that the former subtracts the latter are then carried out the represented function of function key greater than 0 and less than 4; Synchronometer numerical value after will deciphering simultaneously deposits the EEPROM database in, if ineligible, the synchronometer numerical value after then will deciphering is temporarily preserved, and waits at short notice simultaneously receiving next group PWM data transmission.
(7) if receive one group of pwm data at short notice again, then operate according to step 1～6 once more, if the simultaneous techniques value after the decoding and the synchronometer numerical value of current temporary transient preservation satisfy data that the former subtracts the latter greater than 0 and less than 4, then carry out the represented function of function key; Synchronometer numerical value after will deciphering simultaneously deposits the EEPROM database in.
(8), then do not keep the synchronometer numerical value after the decoding, and do not carry out any operation if can't receive one group of pwm data that conforms at short notice.
The present invention utilizes the frame hopping coding techniques, adopts a kind of non-linear AES that former code is carried out accidental enciphering, is the cipher control signal of 66 high level security thereby produce length, and each password of launching all is unique, and is unduplicated.System has the key learning and memory function, if remote controller is lost, system can relearn new remote controller, and original remote controller promptly is wiped free of, even other people use original remote controller, system also can refuse to read, thereby has guaranteed client's property safety.
Claims (2)
1. the control method of an automobile wireless remote control gate lock is characterized in that comprising the generation of data transmission, the reception and the data transmission decoding affirmation of data transmission;
The production method of described data transmission includes following steps:
(1) enabling signal that pushes button produces circuit, its EEPROM restores after synchronometer numerical value among the inner IC can add 1 automatically, 16bits synchronometer numerical value then, 10bits identification code, 4bits function key and 2bits overflow indicating bit and utilize 64bits encrypt/decrypt password among the EEPROM, encrypt the back and produce one group of new 32bits frame hopping, the 34bits fixed code among 32bits frame hopping and the EEPROM is combined into the 66bits numeric data code; The 34bits fixed code includes 28bits sequence number, 4bits function key and 2bits and overflows indicating bit;
(2) the new 66bits numeric data code that produces has added lead data, guiding synchronously, forms pwm data, by the external wireless radiating circuit pwm data is launched;
The method of reseptance of described data transmission includes following steps:
(1) utilizes the guide of lead data, prepare to receive the 66bits numeric data code;
(2) utilize guiding synchronously to proofread and correct, and obtain the time of TE as receiving velocity;
(3) at first rising edge of detection signal, wait for whether 1/2 TE took a sample to the signal currency immediately and tests after the time is 1, if test be 0 then receive data failure, if failure then stop, if successfully continue next step operation;
(4) wait for that 1 TE after the time, takes a sample as data bit to the signal currency immediately, if test is 0 then receives data failure, terminating operation; If test is 1, then expression receives the data success, continues next step operation;
(5) repeat above-mentioned 3～4 action, receive up to finishing the 66bits numeric data code;
Described data transmission decoding confirms to include following steps:
(1) receive one group of effective 66bits numeric data code after, whether the 28bits sequence number that check to receive in the fixed code of 66bits numeric data code identical with sequence number in the EEPROM database, if then shut-down operation inequality then continues next step as if identical;
(2) in the EEPROM database, take out 64bits encrypt/decrypt password;
(3) the 32bits frame hopping that receives is utilized 64bits encrypt/decrypt password deciphered and produce four kinds of data: function key assignments, overflow, identification code and synchronometer numerical value;
(4) in the identification code after the check deciphering and the EEPROM database low 10 of sequence number whether equate, if unequal then shut-down operation then continues next step as if equal;
(5) relatively whether the function key assignments after the deciphering equates with function key assignments in the 34bits fixed code, if unequal then shut-down operation then continues next step as if equal;
(6) whether the variation of inspection " synchronometer numerical value " is correct, the synchronometer numerical value after the decoding compared with the synchronization value in the EEPROM database, if the data that the former subtracts the latter are then carried out the represented function of function key greater than 0 and less than 4; Synchronometer numerical value after will deciphering simultaneously deposits the EEPROM database in, if ineligible, the synchronometer numerical value after then will deciphering is temporarily preserved, and waits at short notice simultaneously receiving next group PWM data transmission.
2. the control method of a kind of automobile wireless remote control gate lock according to claim 1 is characterized in that described data transmission decoding is further comprising the steps of after confirming:
(1) if receives one group of pwm data at short notice again, then operate according to described data transmission decoding affirmation step 1～6 once more, if the simultaneous techniques value after the decoding and the synchronometer numerical value of current temporary transient preservation satisfy data that the former subtracts the latter greater than 0 and less than 4, then carry out the represented function of function key; Synchronometer numerical value after will deciphering simultaneously deposits the EEPROM database in;
(2), then do not keep the synchronometer numerical value after the decoding, and do not carry out any operation if can't receive one group of pwm data that conforms at short notice.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101322036A CN101122195A (en) | 2007-09-12 | 2007-09-12 | Automobile wireless remote control door lock control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101322036A CN101122195A (en) | 2007-09-12 | 2007-09-12 | Automobile wireless remote control door lock control method |
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| CN101122195A true CN101122195A (en) | 2008-02-13 |
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| CNA2007101322036A Pending CN101122195A (en) | 2007-09-12 | 2007-09-12 | Automobile wireless remote control door lock control method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930630A (en) * | 2009-06-19 | 2010-12-29 | 薛恒伟 | Encryption device and method |
| CN101974992A (en) * | 2010-10-20 | 2011-02-16 | 成都科星电器桥架有限公司 | Intelligent learning infrared remote control coded lock |
| CN102235117A (en) * | 2011-05-17 | 2011-11-09 | 深圳市易雷特科技有限公司 | Remote control electronic lock for recreational vehicle |
| CN101858942B (en) * | 2010-01-29 | 2012-05-23 | 重庆长安汽车股份有限公司 | Low-frequency calibration system and method for vehicle keyless access control system |
| CN101619637B (en) * | 2008-07-02 | 2012-12-05 | 彰彬工业股份有限公司 | Lockset capable of accumulating unlocking times |
| CN101866534B (en) * | 2010-01-29 | 2013-03-13 | 中南大学 | Automobile remote-control key-free door control identity authentication method |
| CN102110319B (en) * | 2009-12-24 | 2013-03-27 | 比亚迪股份有限公司 | Wireless code hopping system, device and method for remote control door lock |
| CN103121437A (en) * | 2011-11-18 | 2013-05-29 | 株式会社东海理化电机制作所 | Switching controlling device of ic output port |
| CN114495474A (en) * | 2022-02-16 | 2022-05-13 | 青岛克莱玛物联技术有限公司 | Wireless remote control device |
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2007
- 2007-09-12 CN CNA2007101322036A patent/CN101122195A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619637B (en) * | 2008-07-02 | 2012-12-05 | 彰彬工业股份有限公司 | Lockset capable of accumulating unlocking times |
| CN101930630A (en) * | 2009-06-19 | 2010-12-29 | 薛恒伟 | Encryption device and method |
| CN101930630B (en) * | 2009-06-19 | 2014-03-26 | 薛恒伟 | Encryption method |
| CN102110319B (en) * | 2009-12-24 | 2013-03-27 | 比亚迪股份有限公司 | Wireless code hopping system, device and method for remote control door lock |
| CN101858942B (en) * | 2010-01-29 | 2012-05-23 | 重庆长安汽车股份有限公司 | Low-frequency calibration system and method for vehicle keyless access control system |
| CN101866534B (en) * | 2010-01-29 | 2013-03-13 | 中南大学 | Automobile remote-control key-free door control identity authentication method |
| CN101974992A (en) * | 2010-10-20 | 2011-02-16 | 成都科星电器桥架有限公司 | Intelligent learning infrared remote control coded lock |
| CN101974992B (en) * | 2010-10-20 | 2012-03-21 | 成都科星电器桥架有限公司 | Intelligent learning infrared remote control coded lock |
| CN102235117A (en) * | 2011-05-17 | 2011-11-09 | 深圳市易雷特科技有限公司 | Remote control electronic lock for recreational vehicle |
| CN102235117B (en) * | 2011-05-17 | 2016-06-01 | 深圳市易雷特科技有限公司 | A kind of remote control electronic lock for recreational vehicle |
| CN103121437A (en) * | 2011-11-18 | 2013-05-29 | 株式会社东海理化电机制作所 | Switching controlling device of ic output port |
| CN114495474A (en) * | 2022-02-16 | 2022-05-13 | 青岛克莱玛物联技术有限公司 | Wireless remote control device |
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Open date: 20080213 |