CN2938591Y - Remote control device of uneasy deciphering cipher - Google Patents
Remote control device of uneasy deciphering cipher Download PDFInfo
- Publication number
- CN2938591Y CN2938591Y CN 200620098272 CN200620098272U CN2938591Y CN 2938591 Y CN2938591 Y CN 2938591Y CN 200620098272 CN200620098272 CN 200620098272 CN 200620098272 U CN200620098272 U CN 200620098272U CN 2938591 Y CN2938591 Y CN 2938591Y
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- spread spectrum
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Abstract
An indecipherable remote control unit comprises a remote controller and a remote controlled receiving main unit. It is characterized in that the remote controller and the remote controlled receiving main unit adopt a frequency hopping spread spectrum transmitting circuit or module, the remote control password and remote control messages are transmitted between the remote controller and the remote controlled receiving main unit using the frequency hopping technology; the password of the remote control system is a locked ID code, and the password of each remote control system in a globally unique ID code and has been locked before factory release, preventing the possibility of artificial alteration. Both the ID code and the control command are encrypted with the 128-bit AES or KEELOQ encryption technique, and different keys are used to guarantee safe data transmission and certification.
Description
Technical field:
The remote control field that the present invention relates to, it is antitheft to be applicable to that motor vehicle, family and public place carry out.It specifically is a kind of electronic telecontrol anti-theft device.
Background technology:
At present, along with the develop rapidly of CMOS technology and the maturation of middle and higher density integrated circuit technique, the enhancing of radio frequency integrated circuit function and the raising of reliability, radio-frequency technique has obtained using widely in industry, engineering, identification, every field such as civilian.But in the time of the radio-frequency technique extensive use, also brought potential safety hazard.In a single day " encoding and decoding " that this hidden danger origin is got over radio-frequency technique are set, and are corresponding and constant one by one owing to transmit and receive coding, just can crack easily so grasp this coding.
" identity code " of validated user.Mainly contain two kinds of methods at present and obtain the validated user identity code: the one, be called as the equipment of " aerial coding detecting ", include a HF receiver, recorder analyser or microcomputer, the operator only needs HF receiver is transferred to suitable channel during use, in case have signal to occur, just moment is obtained " identity code " of validated user.Another kind is the equipment that is called as " coded scanning device ", the equipment of this " making an initiative sally " type that is a kind of, during use, the encoder by under microcomputer or the sequence circuit control that equipment includes is compiled out whole codings automatically successively, and go out, until till the receiver response far away by radio transmission.Because fixedly the address setting number of coding-decoding circuit is limited, so scanner is feasible in the short time at the utmost point, this cracks the time and generally can count x (the receiver cycle of decoding+suitable protection blanking time)/2 by the addressing port combination and calculate.It should be noted that this kind equipment because its technology is simple, have high-frequency electronic and encoding and decoding knowledge slightly, spend the some time just can make, so at home in recent years also by a large amount of uses, at present in some place, this kind equipment even as long as the investment hundreds of yuan just can be in one's hands.
The utility model content:
The utility model technical issues that need to address, purpose promptly of the present invention is for a kind of remote control that is difficult for breaking a code being provided, can preventing stolen the separating of identification coding.
The scheme that the utility model purpose realizes is: the remote control that is provided comprises that remote control transmitter and remote control receive main frame, remote control transmitter adopts frequency-hopping spread spectrum radiating circuit or module, remote control receives main frame and adopts frequency-hopping spread spectrum receiving circuit or module, remote control transmitter and remote control receive and adopt frequency hopping transmission remote control password and remote information between the main frame, wherein:
Remote control transmitter is formed by connecting by keyboard circuit, PICW microcontroller, ID code generation circuit, 128 bit encryption circuit, frequency-hopping spread spectrum radiating circuit and antenna, the output of keyboard circuit connects the PICW microcontroller, an input of PICW microcontroller connection ID code generation circuit, the PICW microcontroller connects 128 bit encryption circuit, 128 bit encryption circuit connect the input of frequency-hopping spread spectrum emission/receiving circuit, and the frequency-hopping spread spectrum radiating circuit connects antenna;
Remote control receives main frame by antenna, the frequency-hopping spread spectrum receiving circuit, the PICW microcontroller, ID sign indicating number identification circuit, 128 decrypt circuits and control circuit are formed by connecting, connect the frequency-hopping spread spectrum receiving circuit by antenna, the output of frequency-hopping spread spectrum receiving circuit connects 128 decrypt circuits, the output of 128 decrypt circuits connects the PICW microcontroller, the PICW microcontroller connects I D sign indicating number identification circuit, the output of PICW microcontroller connects the input of control circuit, and the output of control circuit is provided with equipment release mechanism control end by connectivity port 13 junctor motor-cars or other.
The utility model adopts the remote control system of frequency hop spread spectrum to have " anti-copy function " and anti-host computer " scanning ".
1, anti-duplicating: adopt frequency hop spread spectrum to transmit encrypted message and control information, the PN code character of every remote controller is all different, and the PN sign indicating number that at every turn uses a teleswitch all is at random.The password of remote control system adopts ID sign indicating number or rolling code, and control command is all encrypted, and adopts different keys to guarantee the safe transmission of data, authentication.The password of each remote control system is globally unique ID sign indicating number, and locks before dispatching from the factory, and this has just prevented to be altered by the people, can not revise after locking, and guarantees any mechanism and with per family can't rewrite data.Adopt AES or KEELOQ encryption technology.Can further strengthen anti-counterfeit capability.
2, anti-interference: as to adopt frequency hop spread spectrum to transmit encrypted message and control information, because remote controller information is to send by spread spectrum, all noise signal concerning incoherent system, the signal that sends of system also is noise signal concerning this remote controller in fact, incoherent information and can't disturb and adopt spread spectrum to transmit the remote controller of encrypted message and control information.
3, anti-radiation: adopt frequency hop spread spectrum to transmit encrypted message and control information, the PN code character of every remote controller is all different, and the PN sign indicating number that at every turn uses a teleswitch all is at random.The password of remote control system adopts ID sign indicating number or rolling code, and control command is all encrypted, and adopts different keys to guarantee the safe transmission of data, authentication.The password of each remote control system is globally unique ID sign indicating number, and locks before dispatching from the factory, and this has just prevented to be altered by the people, can not revise after locking again, and guarantees any mechanism and with per family can't rewrite data.Adopt AES or KEELOQ encryption technology.Can further strengthen anti-counterfeit capability, the robber utilizes this method of computer+remote controlled transmitting circuit of finishing password program that the remote controller that adopts spread spectrum to transmit encrypted message and control information is not had any effect at all.
4, anti-interception decoding: adopt frequency hop spread spectrum to transmit encrypted message and control information, the PN code character of every remote controller is all different, and the PN sign indicating number that at every turn uses a teleswitch all is at random.The password of remote control system adopts ID sign indicating number or rolling code, and control command is all encrypted, and adopts different keys to guarantee the safe transmission of data, authentication.The password of each remote control system is globally unique ID sign indicating number, and locks before dispatching from the factory, and this has just prevented to be altered by the people, can not revise after locking, and guarantees any mechanism and with per family can't rewrite data.Adopt AES or KEELOQ encryption technology.The robber utilizes remote-control receiving circuit+computer can't receive the interception wireless signal, says nothing of information is decoded and duplicated remote controller.
Remote control system described in the utility model and GPS, vehicle-carried mobile system, automobile central control system, the passive non-key gate control of RFID (PKE) system compatible, mutual embedding and butt joint between back-up system, realize more powerful systemic-function, the embedding of other system has been increased safer measure.
The utility model is that remote controller is installed in the remote-control key, and the remote-control key button that utilizes motor vehicle is as keyboard; The remote-control receiver blackout is in motor vehicle, and the drive circuit of remote-control receiver is connected with the control end of motor-driven engine, constitutes motor vehicle program mode anti-theft lock.
The use key transmits, and after the remote-control receiver received signal in the motor vehicle, judges whether signal is correct, if it is correct, just untie the lock-out state of motor car engine, also produce new identification code automatically, feed back signal to key simultaneously, make key produce same new identification code.
The present invention has following outstanding effect:
1, the outstanding advantage of the utility model is to use frequency hopping and singlechip technology combination, by transmission, the reception realization identification of frequency hopping, guarantees the correctness of identification.
2, use the utility model, any " aerial coding detecting " or " the coded scanning device " of prior art all are difficult to intercept and capture correct identification code, even there is decoding device to receive this encoding and decoding value, because the encoding and decoding value of next time is different with this encoding and decoding value, so can't crack.Be stranded this, the car utility model has security performance height, good anti-theft effect, is widely used in motor vehicle, family or public place and carries out antitheft.
Description of drawings:
Fig. 1 is the block diagram of remote controller of the present utility model.
Fig. 2 is the block diagram that the utility model remote control receives main frame.
Embodiment:
Below in conjunction with Fig. 1, Fig. 2 specific embodiment the utility model is described.
Constitute embodiments of the invention.
Present embodiment receives main frame by remote controller and remote control and constitutes.As shown in Figure 1, remote control transmitter is made up of antenna 6, frequency-hopping spread spectrum transmitter module 5,128 bit encryption circuit 4, PICW microcontroller 2, ID sign indicating number generation electrical equipment 3, keyboard circuit 1.The output of keyboard circuit 1 connects PICW microcontroller 2, an input of PICW microcontroller 2 connection ID code generation circuits 3, PICW microcontroller 2 connects 128 bit encryption circuit 4,128 bit encryption circuit 4 connect the input of frequency-hopping spread spectrum transmitter module 5, and frequency-hopping spread spectrum transmitter module 5 connects antenna 6.
As shown in Figure 2, spread-spectrum remote control reception main frame is made up of antenna 12,7,128 decrypt circuits 10 of frequency-hopping spread spectrum receiver module, ID decoding trusted authentication chip 9, PICW microcontroller 8, circuit control port 11, connectivity port 13.Connect frequency-hopping spread spectrum receiver module 7 by antenna 12,8 decrypt circuits 10 of the output connector of frequency-hopping spread spectrum receiver module 7, the output of 128 decrypt circuits 10 connects PICW microcontroller 8, PICW microcontroller 8 connection ID sign indicating number identification circuits 9, the output of PICW microcontroller 8 connects the input of control circuit 11, and the output of control circuit 11 is provided with equipment release mechanism control end by connectivity port 13 junctor motor-cars or other.
Operation principle:
When the user need carry out remote control to equipment, press keyboard circuit 1 switch on the spread-spectrum remote control device, after the switching signal of this switch triggers PICW microcontroller 2, id information after switch triggering information and ID generative circuit 3 lock is together delivered to 128 bit encryption circuit 4 by after encoding with PICW microcontroller 2, encrypt by 128 bit encryption circuit 4, the information after the encryption carry out spread processing by frequency-hopping spread spectrum transmitter module 5 and by antenna 6 to aerial emission.
Spread-spectrum remote control reception main frame is delivered to frequency-hopping spread spectrum receiver module 7 by antenna 12 reception information and is carried out despreading, information after the despreading is delivered to 128 decrypt circuits 10 and is decrypted, deciphering back information delivers to PICW microcontroller 10 and ID decoding trusted authentication chip 9 compares authentication, after separating the code authentication decoding by ID decoding trusted authentication chip 9, connect the equipment of being controlled by circuit control port 11, connectivity port 13 by PICW microcontroller 10.GPS, vehicle-carried mobile system, automobile central control system, the passive non-key gate control of RFID (PKE) system are by embedding mutually and butt joint between the 13 realization systems of connectivity port.
Claims (5)
1, a kind of remote control that is difficult for breaking a code, comprise that remote control transmitter and remote control receive main frame, it is characterized in that: remote control transmitter adopts frequency-hopping spread spectrum radiating circuit or module, remote control receives main frame and adopts frequency-hopping spread spectrum receiving circuit or module, remote control transmitter and remote control receive and adopt frequency hopping transmission remote control password and remote information between the main frame, wherein:
Remote control transmitter is formed by connecting by keyboard circuit (1), PICW microcontroller (2), ID code generation circuit (3), 128 bit encryption circuit (4), frequency-hopping spread spectrum radiating circuit (5) and antenna 6, the output of keyboard circuit (1) connects PICW microcontroller (2), an input of PICW microcontroller (2) connection ID code generation circuit (3), PICW microcontroller (2) connects 128 bit encryption circuit (4), 128 bit encryption circuit (4) connect the input of frequency-hopping spread spectrum emission/receiving circuit (5), and the frequency-hopping spread spectrum radiating circuit connects antenna (6);
Remote control receives main frame by antenna (12), frequency-hopping spread spectrum receiving circuit (7), PICW microcontroller (8), ID sign indicating number identification circuit (9), 128 decrypt circuits (10) and control circuit (11) are formed by connecting, connect frequency-hopping spread spectrum receiving circuit (7) by antenna (12), the output of frequency-hopping spread spectrum receiving circuit (7) connects 128 decrypt circuits (10), the output of 128 decrypt circuits (10) connects PICW microcontroller (8), PICW microcontroller (8) connects I D sign indicating number identification circuit (9), the output of PICW microcontroller (8) connects the input of control circuit (11), and the output of control circuit (11) is provided with equipment release mechanism control end by connectivity port (13) junctor motor-car or other.
2, a kind of remote control that is difficult for breaking a code according to claim 1 is characterized in that: the frequency-hopping spread spectrum tranmitting frequency 2.4GHz 5.8GHz.
3, a kind of remote control that is difficult for breaking a code according to claim 1 is characterized in that: remote control system and GPS, vehicle-carried mobile system, automobile central control system, the passive non-key gate control system compatibility of RFID, mutual embedding and butt joint between back-up system.
4, a kind of remote control that is difficult for breaking a code according to claim 1, it is characterized in that: the encryption key length of remote control system is 128, adopts AES or KEELOQ encryption technology simultaneously.
5, a kind of remote control that is difficult for breaking a code according to claim 1 is characterized in that: the ID sign indicating number is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098272 CN2938591Y (en) | 2006-08-04 | 2006-08-04 | Remote control device of uneasy deciphering cipher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620098272 CN2938591Y (en) | 2006-08-04 | 2006-08-04 | Remote control device of uneasy deciphering cipher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938591Y true CN2938591Y (en) | 2007-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620098272 Expired - Fee Related CN2938591Y (en) | 2006-08-04 | 2006-08-04 | Remote control device of uneasy deciphering cipher |
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| Country | Link |
|---|---|
| CN (1) | CN2938591Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840625A (en) * | 2010-05-05 | 2010-09-22 | 启明信息技术股份有限公司 | Intelligent remote control key entry method and device of automobile |
| CN102080478A (en) * | 2010-11-12 | 2011-06-01 | 上海德科电子仪表有限公司 | Automobile access control method |
| CN101537824B (en) * | 2008-12-25 | 2012-07-04 | 深圳市赛格导航科技股份有限公司 | Method for controlling oil pipeline of vehicle and wireless concealed switch |
| CN107016757A (en) * | 2017-03-27 | 2017-08-04 | 深圳市亿兆互联技术有限公司 | The control method and system of a kind of automobile remote-control key |
-
2006
- 2006-08-04 CN CN 200620098272 patent/CN2938591Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537824B (en) * | 2008-12-25 | 2012-07-04 | 深圳市赛格导航科技股份有限公司 | Method for controlling oil pipeline of vehicle and wireless concealed switch |
| CN101840625A (en) * | 2010-05-05 | 2010-09-22 | 启明信息技术股份有限公司 | Intelligent remote control key entry method and device of automobile |
| CN101840625B (en) * | 2010-05-05 | 2011-12-07 | 启明信息技术股份有限公司 | Intelligent remote control key entry method and device of automobile |
| CN102080478A (en) * | 2010-11-12 | 2011-06-01 | 上海德科电子仪表有限公司 | Automobile access control method |
| CN107016757A (en) * | 2017-03-27 | 2017-08-04 | 深圳市亿兆互联技术有限公司 | The control method and system of a kind of automobile remote-control key |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |