CN201570073U - Automobile remote control key - Google Patents
Automobile remote control key Download PDFInfo
- Publication number
- CN201570073U CN201570073U CN2008202236409U CN200820223640U CN201570073U CN 201570073 U CN201570073 U CN 201570073U CN 2008202236409 U CN2008202236409 U CN 2008202236409U CN 200820223640 U CN200820223640 U CN 200820223640U CN 201570073 U CN201570073 U CN 201570073U
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- fingerprint
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- control key
- automobile remote
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Abstract
The utility model discloses an automobile remote control key. A fingerprint key comprises a fingerprint module (201) and an encoding transmission module (202), wherein the fingerprint module (201) comprises a processing unit (211), a fingerprint sensor (212), a storage device (213), a push button circuit (214) and a power supply module (215), wherein the processing unit (211) is the core of the fingerprint module (201), the processing unit (211) adopts a built-in fingerprint recognizing special-purpose chip to finish fingerprint image processing, encoding and decoding, fingerprint comparison and the like, the fingerprint sensor (212) is a sensor for collecting fingerprint, and can send finger images to the processing unit (211), the storage device (213) is mainly used for storing fingerprint templates, the push button circuit (214) is mainly used for setting a working mode of the processing unit (211), and the working mode of the processing unit (211) can be set into a fingerprint registration mode or a fingerprint deletion mode. The remote control key has convenient and safe use, and cheap price.
Description
Technical field
The utility model relates to automotive field, especially a kind of automobile remote-control key.
Background technology
Along with the development of social modernization, automobile has become in people's daily life requisite walking-replacing tool.Along with development of science and technology, the wireless remote-control system range of application is also enlarging, and has been widely used in the door-locking system of automobile at present, has so not only made things convenient for the car owner, has also increased the security of automobile door lock simultaneously.
Present automobile remote-control key generally all is to be passed through to trigger coding circuit by button or password authentification, and encoded circuit generates one group of ciphertext, sends Encryption Control Signal by radiating circuit to the automobile receiver module then.The security of button triggering mode is not high, and in fact no matter who as long as obtained remote-control key, can be exactly a kind of mode that thing be can't bear the people of recognizing by gently once opening automobile door lock by button just.
The another kind of password that adopts triggers remote control, the security of this mode is higher than the security of button triggering mode, but all will input password, and password has memory difficulty, shortcoming such as easily forgets, easily cracks, in fact also be a kind of mode that thing (password) is not recognized people of recognizing at every turn.
Also have a kind of employing fingerprint recognition remote control mode,, can not lose, needn't worry to leave behind, need not remember tediously long complex password because fingerprint characteristic is the part of human body.Fingerprint characteristic is that everyone is unique, cannot duplicate, and does not worry stolen.Utilizing fingerprint recognition is safely, reliably, accurately as the authentication means of automobile remote-control key.But existing fingerprint recognition mode processor all is based on the general-purpose chips such as DSP or ARM and runs software code realization, its general-purpose chip is in the rigidity of aspects such as area, power consumption, price, make the telepilot volume of working it out carry inconvenience greatly, the power consumption main point is often changed battery, and the price height.
The utility model content
The purpose of this utility model provides a kind of safe, low-cost automotive lock fingerprint remote control key, this fingerprint key comprises fingerprint module and coding transmitter module, and fingerprint module comprises processing unit, fingerprint sensor, storer, key circuit, power module; Processing unit is the core of fingerprint module, and processing unit adopts Embedded fingerprint recognition special chip, is used to finish Flame Image Process, encryption and decryption, fingerprint comparison of fingerprint etc.; Fingerprint sensor is the sensor that is used to gather fingerprint, and fingerprint image is delivered to processing unit; Storer is mainly used in the storage fingerprint template; Key circuit is mainly used in the mode of operation of setting processing unit, can be the Working mode set of processing unit at fingerprint register pattern or fingerprint puncturing pattern.
FLASH storer of wherein said storer.The power supply mode of wherein said power module is dry cell power supply or button cell power supply; Wherein Cun Chu fingerprint template is the fingerprint template through encrypting; Described coding transmitter module adopts the rolling coding mode; On the shell of described automobile remote-control key, be provided with a protective cover, be used to protect the sensor described automobile remote-control key that is not damaged when opening protective cover, automatically to power on for fingerprint module.
Remote-control key safety of the present utility model, convenience, low price.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a fingerprint key schematic diagram;
Fig. 2 is fingerprint register flow path figure:
Fig. 3 is a fingerprint key workflow diagram.
Embodiment
This fingerprint key schematic diagram as shown in Figure 1, this fingerprint key comprise a fingerprint module 201 and one the coding transmitter module 202.Fingerprint module 201 comprises processing unit 211, fingerprint sensor 212, storer 213, key circuit 214 and power module 215.Processing unit 211 is cores of fingerprint module 201, and the fingerprint processing unit adopts Embedded fingerprint recognition special chip (ASIC).The Flame Image Process of fingerprint, encryption and decryption, fingerprint comparison etc. are all finished in processing module 211, and its implementation is that hardware is realized.Fingerprint sensor 212 is used to gather fingerprint image, and fingerprint image is delivered to processing unit 211 handle comparison.Because handheld device is to the restriction of volume, the utility model adopts semi-conductive fingerprint sensor.Storer 213 is mainly used in the storage fingerprint template, FLASH storer of described storer, and wherein Cun Chu fingerprint template is the fingerprint template through encrypting.Key circuit 214 is mainly used in the mode of operation of setting processing unit 211, can be the Working mode set of processing unit 211 at fingerprint register pattern or fingerprint puncturing pattern.Power module 215 is mainly used in and is fingerprint module 201 power supplies, and its power supply mode is dry cell power supply or button cell power supply.Coding transmitter module 202 is existing coding transmitter modules, and coding uses the rolling code mode
Wherein rolling code is current mainly is used in RKE (the Remote Keyless Entry) system, carries out authentication.When scrambler detects the button input, system is waken up from power down mode, numeration synchronously adds 1, forms encrypt data with sequence number after secret key is encrypted, and sends with data such as key assignments.Because the each all differences that sends of synchronometer numerical value are no exception even same button is repeatedly pressed.Counting rolls forward automatically synchronously, and the code word of transmission can not take place again.Therefore become rolling code.Counting passes through des encryption together with one 64 of scrambler sequence numbers synchronously, and the DES key is that producer is exclusive, must maintain secrecy.Ciphertext after encrypting is then launched by radio system.Receiving end receives after the ciphertext, and the DES key by producer is decrypted, and is counted synchronously and the scrambler sequence number after the deciphering.Whether at first detect scrambler needs corresponding with the sequence number of receiver, if corresponding, just detect synchronously counting whether in synchronous window, whether that is to say greater than the preservation of this machine synchronously counting but little again too much, if big too much, it is one subsynchronous that this machine just remakes.If in synchronous window, notice topworks carries out user command, such as opens door lock or close door lock and so on.
Because cryptographic algorithm can be expressly breaing up, therefore, sign indicating number must rolling can make the sign indicating number of emission change widely different and be difficult to crack that because the existence of counting synchronously, repeating to send does not have effect yet, and therefore will break through this type systematic will break through the DES algorithm.Counting is 16 synchronously, can reach 216=65536, if with 10 times, life cycle in 1812 is arranged then every day.32 sequence number, capacity are 232,=42 hundred million, can satisfy production requirement fully.On the novel automobile automobile remote-control key shell of this use, be provided with a protective cover, be used to protect sensor not to be damaged.When opening protective cover, power on for fingerprint module 201 automatically.
What the utility model adopted is the coding transmitter module of hopping code, if remote-control key is lost, the car owner can open car door by mechanical standby key.As long as, can not open car door again even take the remote-control key of losing by the data of zero clearing receiver module.And then join a remote-control key and get final product.At radiating circuit, the emission rolling code at first will carry out fingerprint comparison before the receiver module of automobile, if unauthorized or unregistered fingerprint, comparison is unsuccessful just can not launch rolling code.Even so key loss, others takes key can not open car door again.
The fingerprint processing unit adopts special-purpose fingerprint recognition integrated circuit (ASIC), performance advantages such as the special chip price is low, area is little, low in energy consumption will make automobile finger-print key performance more remarkable, volume carries more convenient for a short time, battery low in energy consumption is longer service time, cheap penetration and promotion application, the employing hardware implementation algorithm be convenient to, and fingerprint template is through encrypting storage, so good confidentiality is used saferly, it is convenient cheap again to change key.This automobile fingerprint remote control key is a kind of remote-control key that the mechanical key with automobile door lock separates.
Integrated high-performance microprocessor, fingerprint recognition are handled in the special-purpose fingerprint recognition process chip that the utility model adopts, encryption and decryption engine and industry standard interface etc. contain whole Core Features that biological detection is handled, so adopt application and development of the present utility model fairly simple, because the inherent characteristics of special IC, make cost of developing also lower, user's safety in use is convenient again.
During use, at first will carry out fingerprint register, have only the fingerprint of registration to open as key, the fingerprint through registration is not illegal, does not allow to open automotive lock.The fingerprint register flow process as shown in Figure 2, step 301, system powers on; The mode that powers on of the present utility model is for to power on for system automatically by opening over cap; Step 302, system initialization; At every turn, all to move one section initialize routine to system initialization for after system powers on; Step 303 enters the line registration mode; If use the local terminal first, system can enter the fingerprint register pattern automatically after initialization.As supvr's fingerprint is arranged, then need to import corresponding modes and select signal; Step 304, administrator authorization; After entering registration mode, need the mandate of first input manager person fingerprint, if use first, user's acquiescence is the supvr, directly enters fingerprint register this moment.Step 305, fingerprint collecting; Press system prompt, will point exact being put on the fingerprint sensor, system gathers fingerprint automatically.If gather failure, relay finger and gather again, till success.In order to guarantee the quality of fingerprint template, will be when registration to three qualified fingerprints of same finger collection.Step 306, storing template; After three fingerprint collecting successes, Fingerprint Processing Module selects a best fingerprint as template according to the quality of fingerprint image, and it is existed in the external storage, this fingerprint register success this moment.Step 307, standby mode; After succeeding in registration, system enters standby mode automatically.Waiting for next time wakes up.
The systemic-function implementation procedure as shown in Figure 3, idiographic flow is as follows: step 401, system powers on; Power on to system, the mode that powers on powers on for system automatically for opening protective cover; Step 402, system initialization; After system powers on, move one section initialization boot; Step 403, the input fingerprint; Behind the system initialization, enter the fingerprint typing stage.Processor initiatively removes to detect fingerprint sensor, just gathers finger print data, passes to Fingerprint Processing Module, simultaneously finger print data is handled if there is live finger to put; Step 404, fingerprint matching, processor will be stored in the fingerprint template of storer and be transferred to the fingerprint processing unit, allow the fingerprint processing unit that the fingerprint and the template of collection in worksite are compared.If on-the-spot fingerprint of being gathered and the unmatched words of fingerprint template that are stored in the storer are got back to step 403, and it fails to match to point out the visitor, please re-enter fingerprint.Three times all it fails to match when gathering, and just directly enters the system standby pattern.If the fingerprint matching success then enters into step 405.Step 405 sends trigger pip to the coding transmitter module; The fingerprint matching success, after system authorizes the corresponding operating authority, processing unit will begin to send trigger pip to the coding transmitter module.
After the program that system need carry out is carried out end, will make terminal enter standby mode in order to satisfy low power processor.When opening protective cover, can wake fingerprint module up by powering on automatically, and re-execute the primary system program.
Disclosed arbitrary feature in this instructions (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. automobile remote-control key, this fingerprint key comprises fingerprint module (201) and coding transmitter module (202), and it is characterized in that: fingerprint module (201) comprises processing unit (211), fingerprint sensor (212), storer (213), key circuit (214), power module (215); Processing unit (211) is the core of fingerprint module (201), and processing unit (211) adopts Embedded fingerprint recognition special chip, is used to finish the Flame Image Process, encryption and decryption, fingerprint comparison of fingerprint etc.; Fingerprint sensor (212) is the sensor that is used to gather fingerprint, and fingerprint image is delivered to processing unit (211); Storer (213) is mainly used in the storage fingerprint template; Key circuit (214) is mainly used in the mode of operation of setting processing unit (211), can be the Working mode set of processing unit (211) at fingerprint register pattern or fingerprint puncturing pattern.
2. automobile remote-control key as claimed in claim 1 is characterized in that: FLASH storer of described storer.
3. automobile remote-control key as claimed in claim 1 is characterized in that: the power supply mode of described power module is dry cell power supply or button cell power supply.
4. automobile remote-control key as claimed in claim 1 is characterized in that: the fingerprint template of storage is the fingerprint template through encrypting.
5. automobile remote-control key as claimed in claim 1 is characterized in that: described coding transmitter module adopts the rolling coding mode.
6. automobile remote-control key as claimed in claim 1 is characterized in that: the shell of described automobile remote-control key is provided with a protective cover, is used to protect sensor not to be damaged.
7. automobile remote-control key as claimed in claim 6 is characterized in that: described automobile remote-control key powers on for fingerprint module when opening protective cover automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202236409U CN201570073U (en) | 2009-08-12 | 2009-08-12 | Automobile remote control key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202236409U CN201570073U (en) | 2009-08-12 | 2009-08-12 | Automobile remote control key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570073U true CN201570073U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008202236409U Expired - Fee Related CN201570073U (en) | 2009-08-12 | 2009-08-12 | Automobile remote control key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201570073U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890836A (en) * | 2011-07-22 | 2013-01-23 | 霍弗·霍斯贝克及弗斯特两合公司 | Electronic key for a security system with a mechanism to loosen a battery compartment cover |
| CN104504795A (en) * | 2014-12-20 | 2015-04-08 | 江门市联创发展有限公司 | Encryption, decryption and authentication method for intelligent door lock under open system |
| CN104616374A (en) * | 2014-12-17 | 2015-05-13 | 江苏合智同创电子科技有限公司 | Car key remote control system radiofrequency signal interception method |
| CN104802754A (en) * | 2015-05-20 | 2015-07-29 | 张彬彬 | Fingerprint identification type automobile burglar alarm |
| CN106971440A (en) * | 2017-03-31 | 2017-07-21 | 重庆长安汽车股份有限公司 | The storage method of automobile remote-control key synchronous code |
| CN107719307A (en) * | 2017-11-17 | 2018-02-23 | 科成精密模塑科技无锡有限公司 | Fingerprint identification type automobile transmitter precise injection molding housing |
| CN107978046A (en) * | 2017-12-04 | 2018-05-01 | 信利光电股份有限公司 | Automobile remote-control and vehicle remote control method |
| CN104583026B (en) * | 2012-08-30 | 2018-07-20 | 德克萨斯仪器股份有限公司 | Verification, reservation and the revocation of one-pass key card and vehicle pairs |
| CN109509279A (en) * | 2018-11-09 | 2019-03-22 | 浙江众航信息技术有限公司 | A kind of liquid crystal key with anti-theft alarm function |
-
2009
- 2009-08-12 CN CN2008202236409U patent/CN201570073U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890836A (en) * | 2011-07-22 | 2013-01-23 | 霍弗·霍斯贝克及弗斯特两合公司 | Electronic key for a security system with a mechanism to loosen a battery compartment cover |
| CN102890836B (en) * | 2011-07-22 | 2016-12-21 | 霍弗·霍斯贝克及弗斯特两合公司 | For security system, the electron key with machinery for separating battery compartment cover |
| US9595149B2 (en) | 2011-07-22 | 2017-03-14 | Huf Hulsbeck & Furst Gmbh & Co. Kg | Electronic key for a security system with a mechanism for releasing a battery compartment cover |
| CN104583026B (en) * | 2012-08-30 | 2018-07-20 | 德克萨斯仪器股份有限公司 | Verification, reservation and the revocation of one-pass key card and vehicle pairs |
| US11405221B2 (en) | 2012-08-30 | 2022-08-02 | Texas Instmments Incorporated | Retention and revocation of operation keys by a control unit |
| CN108791190B (en) * | 2012-08-30 | 2021-12-10 | 德克萨斯仪器股份有限公司 | Authentication, retention and revocation of one-way key fob and vehicle pairings |
| CN108791190A (en) * | 2012-08-30 | 2018-11-13 | 德克萨斯仪器股份有限公司 | Verification, reservation and the revocation of one-pass key card and vehicle pairs |
| CN104616374A (en) * | 2014-12-17 | 2015-05-13 | 江苏合智同创电子科技有限公司 | Car key remote control system radiofrequency signal interception method |
| CN104504795A (en) * | 2014-12-20 | 2015-04-08 | 江门市联创发展有限公司 | Encryption, decryption and authentication method for intelligent door lock under open system |
| CN104802754A (en) * | 2015-05-20 | 2015-07-29 | 张彬彬 | Fingerprint identification type automobile burglar alarm |
| CN106971440B (en) * | 2017-03-31 | 2019-09-10 | 重庆长安汽车股份有限公司 | The storage method of automobile remote-control key synchronous code |
| CN106971440A (en) * | 2017-03-31 | 2017-07-21 | 重庆长安汽车股份有限公司 | The storage method of automobile remote-control key synchronous code |
| CN107719307A (en) * | 2017-11-17 | 2018-02-23 | 科成精密模塑科技无锡有限公司 | Fingerprint identification type automobile transmitter precise injection molding housing |
| CN107978046A (en) * | 2017-12-04 | 2018-05-01 | 信利光电股份有限公司 | Automobile remote-control and vehicle remote control method |
| CN109509279A (en) * | 2018-11-09 | 2019-03-22 | 浙江众航信息技术有限公司 | A kind of liquid crystal key with anti-theft alarm function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20120812 |