CN101343961A - Non-key gate control system - Google Patents
Non-key gate control system Download PDFInfo
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- CN101343961A CN101343961A CNA2008100436725A CN200810043672A CN101343961A CN 101343961 A CN101343961 A CN 101343961A CN A2008100436725 A CNA2008100436725 A CN A2008100436725A CN 200810043672 A CN200810043672 A CN 200810043672A CN 101343961 A CN101343961 A CN 101343961A
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Abstract
The invention relates to a keyless gate controlling system. The keyless gate controlling system comprises a keyless system controller utilizing the cipher mode of mutual identification verification, a carrying card, and a receiving and transmitting antenna, the keyless system controller positioned at a car body end comprises a low frequency transmitting circuit connected with a singlechip and a high frequency receiving circuit; the carrying card adopts an identification verification card which comprises a low frequency receiving circuit connected with a microprocessor and a high frequency transmitting circuit; by adopting the keyless gate controlling system, the problem that the great inconvenience brought to users due to the car door opening mode through directly using a key or a remote controller is solved.
Description
Technical field
The present invention relates to a kind of non-key gate control system.
Background technology
Present most of automobile all is with the mode of directly opening car door with key or remote controller, bring very big inconvenience to the user like this, when getting back to the car side rainy day, hold umbrella on the other hand such as the user, on the other hand carrying thing, removing to draw out key again and open the door and just seem very inconvenient.
Summary of the invention
Technical problem to be solved by this invention is: at the problem of above-mentioned existence, provide a kind of safe, non-key gate control system easily.
The present invention is achieved in that
A kind of non-key gate control system, comprise the keyless systems controller of the cipher mode by mutual verification identity and carry card, and reception, transmitting antenna, the described keyless systems controller that is positioned at the vehicle body end comprises low frequencies circuit, the high frequency receiving circuit that links to each other with single-chip microcomputer; The described card that carries is an identification card, comprises the low frequency receiving circuit, the high frequency transmission circuit that link to each other with microprocessor.
The reception antenna that links to each other with low frequency receiving circuit in the described identification card is the three-dimensional orthogonal coil.
Described high frequency receiving circuit and high frequency transmission circuit are for exempting from key remote control gate lock RKE circuit.
Described cipher mode adopts the symmetric cryptography verification mode.
Beneficial effect of the present invention:
Owing to adopt technical scheme of the present invention, when human pilot during near the induction region of keyless systems, the identification that human pilot carries (ID is identification) card can receive the low frequency signal that the vehicle body end sends, if the identity identification information of preserving in this signal and the ID card is consistent, the ID card will wake up.This process can prevent that random noise or other interfering signal from waking the ID card up, prolongs battery application life.And the low frequency receiving circuit that links to each other with three-dimensional omni-directional monopole antenna on the ID card can guarantee that ID is stuck in any orientation and can both detects the wake-up signal that the vehicle body end sends.In a single day the ID card wakes up, and the ID card will be analyzed the authenticate password that the vehicle body end sends, and sends response signal, and these signals are through the processing of symmetric cryptography verification mode, to improve safety.The vehicle body end is compared with the inner information of preserving of vehicle body end to received signal, if the verification passes, will open car door lock.Open whole process and only need several milliseconds from waking up to car door lock, human pilot can not felt and touches door handle to any time-delay is arranged the car door opening from hand.
In the processing procedure of symmetric cryptography verification mode, the ID card has identical key with the vehicle body end, brings in from vehicle body, need prevent the forgery ID card palmed off, and on the other hand, the ID card need prevent that equally unauthorized data from reading; Key is from without space transmission, and the transmission random number of encrypting just, and always two random numbers are encrypted simultaneously, got rid of for computation key and carried out the possibility that token is obtained in inverse transformation with random number; Can use any particular algorithms that token is encrypted.
Further describe the present invention below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is a circuit theory schematic diagram of the present invention.
Fig. 2 is the low frequencies circuit.
Fig. 3 is the low frequency receiving circuit.
Fig. 4 is a symmetric cryptography checking procedure schematic diagram.
The specific embodiment
According to Fig. 1, a kind of non-key gate control system of the present invention comprises keyless systems controller and identification card, and the keyless systems controller that is positioned at the vehicle body end comprises low frequencies circuit, the high frequency receiving circuit that links to each other with single-chip microcomputer; Identification card comprises low frequency receiving circuit, the high frequency transmission circuit that links to each other with microprocessor.The PIC16F887 single-chip microcomputer of the keyless systems processor adopting U.S. little core company, identification card is selected the PIC16F639 microprocessor of the U.S. little core company for use.Identification card also can be integrated in the remote controller, makes straighforward operation become standby mode.
Non-key gate control system has adopted the high and low frequency communication to finish the identification checking procedure of identity, its medium-high frequency communication and traditional key remote control gate lock RKE circuit of exempting from are identical, the low frequency communication circuit comprises and transmits and receives two parts, low frequencies is positioned at the vehicle body end, low frequency receives and is positioned at identification card, shown in Fig. 2 and 3.According to shown in Figure 2, the square-wave signal of a fixed frequency, adopt 125KHz, be sent to the PWM pin of PIC16F887 single-chip microcomputer U1, single-chip microcomputer U1 is modulated to this pulse signal by control CS1 pin with a signal source and gets on then, the signal that will amplify after chip U2 will modulate by a signal amplifies back output then, by a LC oscillating circuit this signal is launched with the sine wave of 125KHz then, this signal can transmit under the condition that is not shielded in the ellipsoid scope about 1 meter usually.
According to Fig. 3, as long as identification is positioned in the effective range of low frequency signal source, this circuit all can be sensed low frequency signal by a LC oscillating circuit, because low frequency signal is relatively more responsive to directionality, adopt the coil of X, Y, three orthogonal directions of Z, will can receive low frequency signal in any direction like this.
Though as long as the communication of high and low frequency has been arranged, just can judge that whether identification card is near vehicle body, but for the carrier of the identification card that prevents to forge near vehicle body into the car, adopt the symmetric cryptography checking procedure, the process of verification sends " inquiry " order to identification card from the vehicle body end mutually, as shown in Figure 4, identification card produces a random number A, and return to the vehicle body end by high frequency transmission circuit, after the high frequency receiving circuit of vehicle body end is received random number A, produce a random number B, use common key K and common cryptographic algorithm ek, the vehicle body end is calculated a ciphered data piece, with token 1 (Token1) expression.Token1 has comprised two random numbers and additional control data, and by the low frequencies circuit this data block is sent to identification card.IDA is the sequence number of identification card, and this is main because same car can have many keys, so give sequence number of every key, be convenient to distinguish, also can prevent from simultaneously to copy, text comprises the information of some keys, need issue disconnected position and other information that is used for judging key of vehicle body.
Token1=ek (B||A||IDA|| text)
In identification card, the low frequency receiving circuit is decoded after receiving Token1, and the random number A ' that will obtain from cleartext compares with original random number A that sends, if the two unanimity, then label confirms that two publicly-owned keys are consistent.Produce a random number A2 in the identification card separately, and in order to calculate a ciphered data piece, with token 2 (Token2) expression, wherein also include B and control data, Token2 sends to the vehicle body end by the high frequency transmission circuit in the identification card.
Token2＝ek(B||A2)
The vehicle body termination is decoded after receiving Token2, checks whether original B that sends is consistent with the B ' that has just received.If two random number unanimities, then identification card has proved that also two total keys are consistent, then identification card and vehicle body end verification succeeds, the release of vehicle body end.
Various variations or the remodeling made by those skilled in the art can not depart from the scope of the present invention.
Claims (4)
1, a kind of non-key gate control system, comprise the keyless systems controller of the cipher mode by mutual verification identity and carry card, and reception, transmitting antenna, it is characterized in that: the described keyless systems controller that is positioned at the vehicle body end comprises low frequencies circuit, the high frequency receiving circuit that links to each other with single-chip microcomputer; The described card that carries is an identification card, comprises the low frequency receiving circuit, the high frequency transmission circuit that link to each other with microprocessor.
2, non-key gate control system according to claim 1 is characterized in that: the reception antenna that links to each other with low frequency receiving circuit in the described identification card is the three-dimensional orthogonal coil.
3, non-key gate control system according to claim 1 is characterized in that: described high frequency receiving circuit and high frequency transmission circuit are for exempting from key remote control gate lock RKE circuit.
4, non-key gate control system according to claim 1 is characterized in that: described cipher mode adopts the symmetric cryptography verification mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100436725A CN101343961A (en) | 2008-07-29 | 2008-07-29 | Non-key gate control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100436725A CN101343961A (en) | 2008-07-29 | 2008-07-29 | Non-key gate control system |
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| Publication Number | Publication Date |
|---|---|
| CN101343961A true CN101343961A (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100436725A Pending CN101343961A (en) | 2008-07-29 | 2008-07-29 | Non-key gate control system |
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| CN (1) | CN101343961A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793948B (en) * | 2010-01-29 | 2012-11-07 | 重庆长安汽车股份有限公司 | Low-frequency calibration system and method for passive entry system for vehicles |
| CN102833737A (en) * | 2011-06-15 | 2012-12-19 | 通用汽车环球科技运作有限责任公司 | Computer to vehicle wireless link |
| CN103473832A (en) * | 2012-06-06 | 2013-12-25 | 株式会社东海理化电机制作所 | Electronic key registration system |
| CN103899146A (en) * | 2012-12-26 | 2014-07-02 | 现代摩比斯株式会社 | Method and smartkey system for reducing battery consumption |
| CN105141414A (en) * | 2015-09-06 | 2015-12-09 | 丹阳伦图电子技术有限公司 | Electronic paper based dynamic password device and realizing method thereof |
| CN105976468A (en) * | 2016-05-13 | 2016-09-28 | 广东触联科技有限公司 | Method and device for intelligently unlocking digital door lock |
| CN110111472A (en) * | 2019-05-16 | 2019-08-09 | 广州小鹏汽车科技有限公司 | Vehicle key control method and device |
| CN110136306A (en) * | 2019-05-16 | 2019-08-16 | 广州小鹏汽车科技有限公司 | Vehicle key control method and system |
-
2008
- 2008-07-29 CN CNA2008100436725A patent/CN101343961A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793948B (en) * | 2010-01-29 | 2012-11-07 | 重庆长安汽车股份有限公司 | Low-frequency calibration system and method for passive entry system for vehicles |
| CN102833737A (en) * | 2011-06-15 | 2012-12-19 | 通用汽车环球科技运作有限责任公司 | Computer to vehicle wireless link |
| US8954006B2 (en) | 2011-06-15 | 2015-02-10 | GM Global Technology Operations LLC | Computer to vehicle wireless link |
| CN102833737B (en) * | 2011-06-15 | 2016-05-04 | 通用汽车环球科技运作有限责任公司 | Computer-automobile wireless link |
| CN103473832A (en) * | 2012-06-06 | 2013-12-25 | 株式会社东海理化电机制作所 | Electronic key registration system |
| CN103899146A (en) * | 2012-12-26 | 2014-07-02 | 现代摩比斯株式会社 | Method and smartkey system for reducing battery consumption |
| CN103899146B (en) * | 2012-12-26 | 2016-09-28 | 现代摩比斯株式会社 | In order to reduce intelligent key system and the How It Works thereof of battery consumption |
| CN105141414A (en) * | 2015-09-06 | 2015-12-09 | 丹阳伦图电子技术有限公司 | Electronic paper based dynamic password device and realizing method thereof |
| CN105976468A (en) * | 2016-05-13 | 2016-09-28 | 广东触联科技有限公司 | Method and device for intelligently unlocking digital door lock |
| CN105976468B (en) * | 2016-05-13 | 2019-06-07 | 广东触联科技有限公司 | A kind of intelligent unlocking method and apparatus of digital door lock |
| CN110111472A (en) * | 2019-05-16 | 2019-08-09 | 广州小鹏汽车科技有限公司 | Vehicle key control method and device |
| CN110136306A (en) * | 2019-05-16 | 2019-08-16 | 广州小鹏汽车科技有限公司 | Vehicle key control method and system |
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Open date: 20090114 |