CN203902481U - Automobile keyless access control system - Google Patents
Automobile keyless access control system Download PDFInfo
- Publication number
- CN203902481U CN203902481U CN201420293726.4U CN201420293726U CN203902481U CN 203902481 U CN203902481 U CN 203902481U CN 201420293726 U CN201420293726 U CN 201420293726U CN 203902481 U CN203902481 U CN 203902481U
- Authority
- CN
- China
- Prior art keywords
- module
- automobile
- frequency
- key
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Lock And Its Accessories (AREA)
- Selective Calling Equipment (AREA)
Abstract
The utility model discloses an automobile keyless access control system. The automobile keyless access control system comprises a remote control key module and an automobile body control module. The remote control key module comprises a low-frequency receiving and wakeup module, a remote control key MCU and a high-frequency emitting module. The remote control key module is used for controlling automobile access through receiving a low-frequency signal emitted by the automobile body control module and emitting an encrypted high-frequency signal to the automobile body control module. The automobile body control module comprises a low-frequency emitting module, an automobile body MCU and a high-frequency receiving module and is used for receiving and verifying the encrypted high-frequency signal emitted by the remote control key module and controlling the automobile access according to the verified encrypted high-frequency signal. One-way verification and double-way verification are adopted, by the adoption of a communication technology for data encryption and a UHF radio frequency identification technology, people can enter an automobile without a key and can start the automobile, meanwhile, the anti-interference capacity of a radio frequency signal is high, and the reliability and security of the system can be guaranteed.
Description
Technical field
The utility model relates to automobile door control systems technology field, relates in particular to a kind of automobile no-key gate control system based on RFID (Radio Frequency Identification, RF identification) technology and communication encryption algorithm.
Background technology
Automobile door control system comes across the U.S. the earliest.Use the initial stage of automobile American, the ignition lock that most of automobiles are equipped is the simple assembling of " on-off " formula just, and car thief can start automobile very easily.Automotive safety problem becomes government and user's problem of headache the most, and meanwhile, user vehicle is also had higher requirement for the traveling comfort of automobile.
Remote control gate lock (Remote Keyless Entry, RKE) is therefore born, and safe and use the feature such as comfortable to obtain the favor of vast user vehicle with it.RKE system is simple to operate, only need to be by the related key on remote-control key, and that just can in 30 meters, realize automobile unblanks, locks, seeks the functions such as car, and has ensured the safety of automobile with multi-form cryptographic algorithm.
Along with the development of RKE system, automotive keyless entering system, is called for short PKE (Passive Keyless Entry) and also arises at the historic moment, and it adopts RFID wireless radio-frequency and testing vehicle register code recognition system, application miniaturization, miniwatt.PKE system is in the efficient cryptographic algorithm of application, and application high-frequency RF ID and low frequency RF ID technology, really realize dual radio frequency system, dual-identity authentication, to greatest extent for user vehicle facilitates and safety.
The automobile no-key gate control system that provides a kind of antijamming capability strong and safe and reliable is provided the utility model object.
Utility model content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide a kind of antijamming capability by force and safe and reliable automobile no-key gate control system.
For achieving the above object, the utility model provides a kind of automobile no-key gate control system, it is characterized in that, comprises remote-control key module and Body control module;
Described remote-control key module comprises that low frequency receives wake module, remote-control key MCU (Micro Control Unit) control unit and high-frequency emission module, for by receiving the low frequency signal that described Body control module sends and encrypting high-frequency signal to described Body control module transmitting and control automobile door control;
Described Body control module comprises low frequencies module, vehicle body MCU control unit and high frequency receiver module, for receiving and verify the encryption high-frequency signal of described remote-control key module transmitting, and controls automobile door control according to the encryption high-frequency signal of verifying.
In a preferred embodiment of the present utility model, the frequency that described low frequency receives wake module and the employing of described low frequencies module is 125KHz.
Further, described high-frequency emission module and described high frequency receiver module are supported 300～348MHz, 387～464MHz and 779～928MHz frequency band.
Further, described high-frequency emission module and described high frequency receiver module are supported the modulation system of 2-FSK (2-Frequency-shiftkeying), 4-FSK (4-Frequency-shift keying), GFSK (Gauss frequency Shift Keying), MSK (Minimum Shift Keying) and OOK (On-Off Keying).
In a preferred embodiment of the present utility model, the frequency that described high-frequency emission module and described high frequency receiver module adopt is 315MHz.
Further, the ciphering process of the encryption high-frequency signal of described high-frequency emission module transmitting is finished dealing with by described remote-control key MCU control unit.
In a preferred embodiment of the present utility model, the ciphering process of described remote-control key MCU control unit comprises: produce local secret key and dynamic secret key and be encrypted by AES (Advanced Encryption Standard) algorithm.Remote-control key MCU control unit is AES data encryption and unilateral authentication or the two-way authentication by realizing signal on 8-bit microprocessor.
Further, described Body control module also comprises CAN (Controller Area Network, CAN) bus interface and serial communication interface, described gate control system is carried out communication by described CAN bus interface and described serial communication interface and automobile.
The utility model has mainly been realized communicating by letter at two communications bands between Body control module and remote-control key module: UHF (the Ultra High Frequency) frequency range of 125KHz low frequency and 315MHz is carried out information exchange, communicate by CAN bus and other module of automobile by Body control module, to reach the control to automobile.The module that transmits and receives of 315MHz can be under lower power consumption, realizes remote (in 3V lithium electronic power situation, communication distance can reach rice up to a hundred) data transmission.And it is simple that 125KHz transmits and receives modular design, the square wave that can export 125KHz by microcontroller, as carrier signal, is realized the data communication of 2-3 rice by outside after amplifying.Therefore, the energizing signal using 125KHz as remote-control key, also can realize the closely data exchange between Body control module and key module, improves PKE system applies alerting ability.
In the automobile no-key gate control system of the utility model design, adopt unilateral authentication and two kinds of patterns of two-way authentication, unilateral authentication is realized long-range car, the remote unlocking locking function sought; Two-way authentication is used for realizing a key ignition function of exempting to operate automatic locking, locking and automobile of automobile.And the utility model has data encryption communication and UHF REID by employing, realize without key and just can enter automobile and can start automobile, radiofrequency signal antijamming capability is strong simultaneously, can ensure reliability and the safety of system.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Brief description of the drawings
Fig. 1 is the structural representation of automobile no-key gate control system of the present utility model;
Fig. 2 is the structural representation of the Body control module of automobile no-key gate control system of the present utility model;
Fig. 3 is the workflow diagram of the Body control module of automobile no-key gate control system of the present utility model;
Fig. 4 is the structural representation of the remote-control key module of automobile no-key gate control system of the present utility model;
Fig. 5 is the workflow diagram of the remote-control key module of automobile no-key gate control system of the present utility model.
Detailed description of the invention
In order more specifically to describe the utility model, below in conjunction with the drawings and the specific embodiments, the technical solution of the utility model and relative theory thereof are elaborated.
As shown in Figure 1, the utility model comprises Body control module and remote-control key module.Remote-control key module is mainly responsible for the transmission of car owner's operation information; Body control module is responsible for receiving and checking remote-control key information, and the correlation function of auto body is operated or communication.
Wherein, as shown in Figure 2, Body control module mainly comprises low frequencies module, high frequency receiver module, vehicle body MCU control unit, LED instruction, power supply, clock, keyboard, EEPROM storage, CAN bus interface and serial communication interface.
Low frequencies module adopts the extremely low low frequencies chip of power consumption, and supports multiple carrier frequency.
High frequency receiver module is also the RF receiving chip that adopts low-power consumption, support 300～348MHz, 387～464MHz and many frequency band operations of 779～928MHz, and the Different Modulations such as 2-FSK, 4-FSK, GFSK, MSK, OOK, maximum output power is 12dBm, has realized the long haul between vehicle body and remote-control key.
In preferred embodiment of the present utility model, the frequency that high frequency receiver module adopts is 315MHz, and the frequency that low frequencies module adopts is 125KHz.
Body control module also can pass through vehicle body MCU control unit, CAN bus interface and serial communication interface and gather the operating switch on automobile, control central door lock, car light, wiper and annunciator etc. by intelligent logical processing and trip out the control system of carrying out object, this system can be carried out information exchange by MCU control unit and other control units of automobile, and can carry out data exchange with the outer fault detection system of car, realize the automatic detection function of vehicle failure.
Body control module is the communication between itself and remote-control key module of completing according to as shown in Figure 3:
(1), vehicle body electrification reset, whole system initialization;
(2), judge whether to be triggered: if trigger, jump to (3); If do not trigger, jump to (6);
(3), receive the high-frequency signal of remote-control key module transmitting, high-frequency signal comprises learning frame and Frame; And judge whether to receive data, if the data of receiving jump to (5); If do not receive data, jump to (4);
(4), judge that whether receive data overtime: if do not have overtimely, (3) are gone back in redirect; If overtime, again jump to (2);
(5), the learning frame receiving and Frame are compared, look at whether exist: if existed, again jump to (2); If, store this learning frame and Frame, and indicate by indicating device, and then (2) are not gone back in redirect;
(6), transmitting low frequency signal, i.e. low frequency wake-up sequence;
(7), receive learning data frame, and judge whether to receive Frame: if receive Frame, jump to (9); If do not receive Frame, jump to (8);
(8), judge whether it is that reception data are overtime: if overtime, jump to (2); If not overtime, jump to (7);
(9), it is legal that the data that receive are judged whether: if legal, jump to (10); If illegal, judge whether the number of times of its reception transfinites, if transfinited, jump to (2); If do not transfinited, jump to (6);
(10), the data through legal judgement are verified: if not by checking, jump to step (2); If passed through data verification, store related data, and carry out associative operation, then (2) are gone back in redirect.
The structure of remote-control key module specifically as shown in Figure 4, comprises that high-frequency emission module, low frequency receive wake module, remote-control key MCU control unit, LED instruction and keyboard:
High-frequency emission module adopts the design of low-power consumption RF transmitting chip, support 300～348MHz, 387～464MHz and many frequency band operations of 779～928MHz, and the Different Modulations such as 2-FSK, 4-FSK, GFSK, MSK, OOK, maximum output power is 12dBm, and this module realizes vehicle body and remote-control key long haul.The data that high-frequency emission module sends comprise learning frame and Frame.In preferred embodiment of the present utility model, the frequency that high-frequency emission module adopts is 315MHz;
Low frequency receives wake module and adopts power consumption extremely low low frequency receiving chip, supports multiple carrier frequency, after receiving corresponding signal and being verified, sends WAKE signal, wakes the work of MCU control unit up.In preferred embodiment of the present utility model, the frequency that low frequency receives wake module employing is 125KHz.
Remote-control key MCU control unit also comprises timer, counting machine and pseudorandom number generator.Remote-control key MCU control unit produces dynamic secret key, local secret key and low frequency wake-up sequence, and will after these related data framings, be sent to Body control module by high-frequency emission module: specify a time T by timer, time T of every mistake, the value of counting machine once changes, and the value of counting machine is used as dynamic secret key; Produce the pseudo random number of 8bit by pseudorandom number generator as local secret key and low frequency wake-up sequence.Remote-control key MCU control unit also will adopt AES cryptographic algorithm to carry out data encryption to the communication data sending by high-frequency emission module, the block length of AES cryptographic algorithm is that 128 bits, key length are 128 bits, establishing criteria AES ciphering process, is divided into some subprograms by the ciphering process of whole AES and carries out.
Remote-control key module is to carry out with the communication of Body control module according to flow process as shown in Figure 5:
(1), remote-control key electrification reset, remote-control key module is carried out initialization;
(2), in judge module, whether there is pending task: if had, jump to (four); If not, enter park mode, and jump to (three);
(3), whether judge module has the instruction triggering by which kind of mode: if triggered by timer, jump to (four); If triggered by low frequency wake-up sequence, jump to (five); If triggered by button, jump to (six);
(4), whether judge module be timed triggering: if clocked flip, refresh counter, and counting machine is reconfigured, then jumps to (two); If there is no clocked flip, jump to (five);
(5), whether judge module triggered by low frequency wake-up sequence: if triggered, prepare clear data, carry out AES encryption, and skip to (seven); If do not trigger, skip to (six);
(6), whether judge module triggered by button: if triggered, produce byte type random number, prepare learning frame Frame, and jump to (seven); If do not triggered, trigger remote-control key module by command key, and change counting machine, warning order data, carry out AES encryption, and refresh counter finally jumps to (seven);
(7), to data framing, and enciphered data is sent n time, (two) are returned in last redirect.
In the automobile no-key gate control system of the utility model design, adopt unilateral authentication and two kinds of patterns of two-way authentication, unilateral authentication is realized long-range car, the remote unlocking locking function sought; Two-way authentication is used for realizing a key ignition function of exempting to operate automatic locking, locking and automobile of automobile.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical personnels are in the art complied with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in by the determined protection domain of claims.
Claims (8)
1. an automobile no-key gate control system, is characterized in that, comprises remote-control key module and Body control module; Described remote-control key module comprises that low frequency receives wake module, remote-control key MCU control unit and high-frequency emission module, for by receiving the low frequency signal that described Body control module sends and encrypting high-frequency signal to described Body control module transmitting and control automobile door control;
Described Body control module comprises low frequencies module, vehicle body MCU control unit and high frequency receiver module, for receiving and verify the encryption high-frequency signal of described remote-control key module transmitting, and controls automobile door control according to the encryption high-frequency signal of verifying.
2. automobile no-key gate control system as claimed in claim 1, is characterized in that, the frequency that described low frequency receives wake module and the employing of described low frequencies module is 125KHz.
3. automobile no-key gate control system as claimed in claim 1, is characterized in that, described high-frequency emission module and described high frequency receiver module are supported 300～348MHz, 387～464MHz and 779～928MHz frequency band.
4. automobile no-key gate control system as claimed in claim 3, is characterized in that, the frequency that described high-frequency emission module and described high frequency receiver module adopt is 315MHz.
5. automobile no-key gate control system as claimed in claim 1, is characterized in that, described high-frequency emission module and described high frequency receiver module are supported the modulation system of 2-FSK, 4-FSK, GFSK, MSK and OOK.
6. automobile no-key gate control system as claimed in claim 1, is characterized in that, the ciphering process of the encryption high-frequency signal of described high-frequency emission module transmitting is finished dealing with by described remote-control key MCU control unit.
7. automobile no-key gate control system as claimed in claim 6, is characterized in that, the ciphering process of described remote-control key MCU control unit comprises: produce local secret key and dynamic secret key and be encrypted by aes algorithm.
8. automobile no-key gate control system as claimed in claim 1, it is characterized in that, described Body control module also comprises CAN bus interface and serial communication interface, and described gate control system is carried out communication by described CAN bus interface and described serial communication interface and automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293726.4U CN203902481U (en) | 2014-06-03 | 2014-06-03 | Automobile keyless access control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293726.4U CN203902481U (en) | 2014-06-03 | 2014-06-03 | Automobile keyless access control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203902481U true CN203902481U (en) | 2014-10-29 |
Family
ID=51776768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420293726.4U Expired - Fee Related CN203902481U (en) | 2014-06-03 | 2014-06-03 | Automobile keyless access control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203902481U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796430A (en) * | 2015-05-05 | 2015-07-22 | 深圳市聚电电子有限公司 | Composite PKE (passive keyless entry) automobile encryption and antitheft system |
| CN105984423A (en) * | 2015-02-12 | 2016-10-05 | 鸿富锦精密工业（深圳）有限公司 | Vehicle antitheft system and vehicle antitheft method |
| CN106772399A (en) * | 2016-12-30 | 2017-05-31 | 铁将军汽车电子有限公司 | Wireless exploration radar installations and its detection method |
| CN108001406A (en) * | 2017-12-25 | 2018-05-08 | 安徽天瑞电子科技有限公司 | Key system for electric vehicle |
| CN109493481A (en) * | 2018-11-09 | 2019-03-19 | 上海木木聚枞机器人科技有限公司 | A kind of gate inhibition's passing method, system and robot based on robot |
| CN110310397A (en) * | 2019-06-24 | 2019-10-08 | 浙江新吉奥汽车有限公司 | A kind of pure electric automobile anti-theft key certification implementation method |
| CN110719578A (en) * | 2019-09-18 | 2020-01-21 | 中国第一汽车股份有限公司 | Method, system, device and storage medium for awakening automobile base station |
| CN111047849A (en) * | 2019-12-30 | 2020-04-21 | 江苏大周基业智能科技有限公司 | Networking remote control password module and safe remote control system |
| CN111083703A (en) * | 2019-12-27 | 2020-04-28 | 北京清华亚迅电子信息研究所 | Signal relay safety detection device and method for keyless access control system |
| CN111739196A (en) * | 2019-03-25 | 2020-10-02 | 苏州道外信息技术有限公司 | Door lock, key terminal, door lock system, control method of door lock system and server |
| CN111968272A (en) * | 2020-08-25 | 2020-11-20 | 天津经纬恒润科技有限公司 | Data transmission method and device for remote control access control system |
| CN112622822A (en) * | 2020-12-29 | 2021-04-09 | 江苏吉麦新能源车业有限公司 | Vehicle anti-theft system |
| WO2021258993A1 (en) * | 2020-06-24 | 2021-12-30 | 广州汽车集团股份有限公司 | Method for securely connecting vehicle and bluetooth key, and bluetooth module and bluetooth key |
-
2014
- 2014-06-03 CN CN201420293726.4U patent/CN203902481U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984423A (en) * | 2015-02-12 | 2016-10-05 | 鸿富锦精密工业（深圳）有限公司 | Vehicle antitheft system and vehicle antitheft method |
| CN104796430A (en) * | 2015-05-05 | 2015-07-22 | 深圳市聚电电子有限公司 | Composite PKE (passive keyless entry) automobile encryption and antitheft system |
| CN106772399A (en) * | 2016-12-30 | 2017-05-31 | 铁将军汽车电子有限公司 | Wireless exploration radar installations and its detection method |
| CN106772399B (en) * | 2016-12-30 | 2024-03-26 | 铁将军汽车电子股份有限公司 | Wireless detection radar device and detection method thereof |
| CN108001406A (en) * | 2017-12-25 | 2018-05-08 | 安徽天瑞电子科技有限公司 | Key system for electric vehicle |
| CN109493481A (en) * | 2018-11-09 | 2019-03-19 | 上海木木聚枞机器人科技有限公司 | A kind of gate inhibition's passing method, system and robot based on robot |
| CN111739196A (en) * | 2019-03-25 | 2020-10-02 | 苏州道外信息技术有限公司 | Door lock, key terminal, door lock system, control method of door lock system and server |
| CN110310397A (en) * | 2019-06-24 | 2019-10-08 | 浙江新吉奥汽车有限公司 | A kind of pure electric automobile anti-theft key certification implementation method |
| CN110719578B (en) * | 2019-09-18 | 2023-04-18 | 中国第一汽车股份有限公司 | Method, system, device and storage medium for awakening automobile base station |
| CN110719578A (en) * | 2019-09-18 | 2020-01-21 | 中国第一汽车股份有限公司 | Method, system, device and storage medium for awakening automobile base station |
| CN111083703A (en) * | 2019-12-27 | 2020-04-28 | 北京清华亚迅电子信息研究所 | Signal relay safety detection device and method for keyless access control system |
| CN111047849B (en) * | 2019-12-30 | 2021-05-18 | 江苏大周基业智能科技有限公司 | Networking remote control password module and safe remote control system |
| CN111047849A (en) * | 2019-12-30 | 2020-04-21 | 江苏大周基业智能科技有限公司 | Networking remote control password module and safe remote control system |
| WO2021258993A1 (en) * | 2020-06-24 | 2021-12-30 | 广州汽车集团股份有限公司 | Method for securely connecting vehicle and bluetooth key, and bluetooth module and bluetooth key |
| CN111968272A (en) * | 2020-08-25 | 2020-11-20 | 天津经纬恒润科技有限公司 | Data transmission method and device for remote control access control system |
| CN112622822A (en) * | 2020-12-29 | 2021-04-09 | 江苏吉麦新能源车业有限公司 | Vehicle anti-theft system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203902481U (en) | Automobile keyless access control system | |
| CN102654003B (en) | Low power consumption remote awakening intelligent lock system | |
| CN108698561B (en) | Method for activating at least one safety function of a vehicle safety system | |
| CN108216121B (en) | Secure vehicle access system, key, vehicle and method therefor | |
| CN202970174U (en) | Remote wake-up smart lock system with low power consumption | |
| CN201915717U (en) | Keyless entry system for intelligent security door | |
| US6329909B1 (en) | Code signal generator, in particular for an anti-theft protection system of a motor vehicle | |
| CN108701381A (en) | Band is useful for the modular unit of the interface of communication apparatus | |
| CN107920056B (en) | Method and system for secure access to a determined space by means of a wearable object | |
| CN101840625A (en) | Intelligent remote control key entry method and device of automobile | |
| CN101624884B (en) | Control method of wireless remote-control lock system | |
| CN102704761B (en) | Intelligent lock system supporting multiple authentication modes | |
| CN201865426U (en) | Passive keyless entry or starting system, vehicle-mounted base station and induction key | |
| CN100585646C (en) | A kind of electronic anti-theft system for automobile engine locking | |
| US8164417B2 (en) | In-vehicle apparatus remote control system and in-vehicle apparatus remote control method | |
| CN206551993U (en) | A kind of PKE automobile encrypted antitheft systems based on quantum key card | |
| CN103353996B (en) | Automobile wireless control system and the state information feedback method based on this system | |
| JP6738889B2 (en) | Device for locking and/or unlocking | |
| CN101320491A (en) | Automobile anti-theft system | |
| CN202970173U (en) | Intelligent lock system supporting multiple authentication methods | |
| KR20170136559A (en) | A system for waking up battery operated devices | |
| CN202518223U (en) | Vehicle keyless learning system using wireless bidirectional communication | |
| CN202686269U (en) | Radio frequency identification (RFID) based automobile anti-theft system | |
| CN202788320U (en) | Car door lock | |
| JP3843718B2 (en) | Electronic control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150603 |
|
| EXPY | Termination of patent right or utility model |