CN102251713A - Unlocking method of vehicle - Google Patents
Unlocking method of vehicle Download PDFInfo
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- CN102251713A CN102251713A CN 201110154197 CN201110154197A CN102251713A CN 102251713 A CN102251713 A CN 102251713A CN 201110154197 CN201110154197 CN 201110154197 CN 201110154197 A CN201110154197 A CN 201110154197A CN 102251713 A CN102251713 A CN 102251713A
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Abstract
The invention provides an unlocking method of a vehicle. An unlocking wireless signal frame which is sent from a remote control key of the vehicle to a door lock controller in the vehicle contains an unlocking key and a next-time unlocking key indication code, the unlocking key is only used for verifying whether a person has the right to perform unlocking operation in unlocking operation at this time, and the next-time unlocking key indication code is used for appointing the unlocking key used in the next-time unlocking operation. By adopting the method, the unlocking key used in the unlocking operation every time is different, thereby being capable of effectively preventing an unlocking key from being obtained by malicious interception of a wireless signal which is sent by the remote control key.
Description
Technical field:
The invention provides a kind of vehicle unlock method, particularly relate to the designation method of employed Personal Unlocking Key when each unlocking operation.
Background technology:
Automobile remote-control key is a kind of vehicle electric door lock release that is widely used at present/last lock tool, and it can make things convenient for the car owner outside certain distance vehicle to be carried out release or lock.But, because remote-control key transmits Personal Unlocking Key by wireless mode, the wireless signal frame that the stealer can use instrument malicious intercepted remote-control key to be launched, thus and decode and obtain the Personal Unlocking Key that wherein carries.At present, also do not have effective ways can prevent that Personal Unlocking Key is stolen and the vehicle that causes by the malicious intrusions incident.
Summary of the invention:
The vehicle that causes in order to prevent Personal Unlocking Key to be stolen is by malicious intrusions, one embodiment of the present of invention provide a kind of vehicle unlock method, when carrying out unlocking operation, include Personal Unlocking Key and next Personal Unlocking Key indication code in the release wireless signal frame of the door lock controller of the remote-control key of vehicle in sending to vehicle, whether described Personal Unlocking Key only is used to checking when this unlocking operation have authority to carry out unlocking operation, and described next Personal Unlocking Key indication code is used to specify employed Personal Unlocking Key when next unlocking operation.
An alternative embodiment of the invention also provides a kind of vehicle unlock method, said method comprising the steps of:
A: in the door lock controller in vehicle remote control key and the vehicle identical key list is set, described key list comprises a plurality of next Personal Unlocking Key indication codes and Personal Unlocking Key, and the unique corresponding Personal Unlocking Key of each next Personal Unlocking Key indication code;
B: when carrying out this unlocking operation, described remote-control key sends release wireless signal frame to described door lock controller, comprise Personal Unlocking Key and next Personal Unlocking Key indication code in this release wireless signal frame, preserve and the corresponding Personal Unlocking Key of described next Personal Unlocking Key indication code;
C: described door lock controller verifies whether this unlocking operation is effective;
D: if effectively, described door lock controller is carried out unlocking operation, and preservation and the corresponding Personal Unlocking Key of described next Personal Unlocking Key indication code;
Wherein, corresponding with described next Personal Unlocking Key indication code Personal Unlocking Key is used when next unlocking operation.
The invention has the beneficial effects as follows: employed Personal Unlocking Key is all inequality when each unlocking operation, the employed Personal Unlocking Key of this unlocking operation is only effective when this unlocking operation, next Personal Unlocking Key indication code agreement in the release wireless signal frame that send when unlocking operation employed Personal Unlocking Key is by this unlocking operation next time, even have the people to obtain the employed Personal Unlocking Key of this unlocking operation like this, also can't use it to open car door once more by tackling the wireless signal frame.
Description of drawings:
Fig. 1 is the release wireless signal frame that is sent by remote-control key.
Fig. 2 is the lock vehicle radio signal frame that is sent by remote-control key.
Fig. 3 is the automotive electronics door lock operation method flow diagram that first embodiment of the invention adopts.
Fig. 4 is the release wireless signal frame that is sent by remote-control key.
Fig. 5 is the automotive electronics door lock operation method flow diagram that second embodiment of the invention adopts.
Fig. 6 is an electronic door lock system schematic diagram disclosed in this invention.
The specific embodiment:
Shown in Fig. 1 is the vehicle release wireless signal frame structure that first embodiment of the invention adopts.This release wireless signal frame is made up of four fields.First field is the key identification code, door lock controller in the vehicle discerns by this key identification code whether the remote-control key that sends the wireless signal frame is the remote-control key of this car correspondence, this field is distributed according to vehicle manufacturers, different manufacturers distribute different key identification codes, the key identification code comprises manufacturer's code, vehicle code and the active/standby key code of using, and the shared bit length of this field is also specified by the manufacturer.Second field is the unlocking operation sign indicating number, and it is unlocking operation that the door lock controller in the vehicle is discerned the operation that current car owner need carry out by this unlocking operation sign indicating number, and field length is determined by vehicle manufacturers.The 3rd field is a Personal Unlocking Key, and the door lock controller in the vehicle comes by this key and judges whether described remote-control key has authority to carry out unlocking operation, and this field length is determined according to the key length that is adopted, and for example can be 16 bits or 32 bits.The 4th field is next Personal Unlocking Key indication code, employed Personal Unlocking Key when this indication code is used for fixing on next unlocking operation approximately with the door lock controller in the vehicle.When pushing on the key release button of vehicle remote control, described next Personal Unlocking Key indication code is selected at random from key list by the controller in the remote-control key and is obtained at every turn, perhaps adds that by the indication code that produced last time a positive integer value that produces at random obtains.The length of the 4th field is determined according to the Personal Unlocking Key total quantity that is adopted.
Shown in Fig. 2 is vehicle lock vehicle radio signal frame structure of the present invention.This lock vehicle radio signal frame is made up of two fields.First field is the key identification code, and is consistent with key identification code in the aforementioned vehicle release wireless signal frame, do not repeat them here.Second field is lock car command code, and it is the operation of lock car that the door lock controller in the vehicle is discerned the operation that current car owner's needs carry out according to this command code, and field length is determined by vehicle manufacturers.
First embodiment of the invention needs in advance to set identical key list in the door lock controller in vehicle remote control key and the vehicle.As shown in table 1.Table 1 shows the embodiment that adopts 4 Personal Unlocking Keys, and wherein the length of Personal Unlocking Key indication code is 2 bits, and the length of Personal Unlocking Key is 32 bits.Adopt more Personal Unlocking Key and longer Personal Unlocking Key if desired, then need the length of the capacity and the Personal Unlocking Key indication code of expansion cipher table.
Table 1: key list
| Next Personal Unlocking Key indication code | Personal Unlocking Key (32) |
| 00 | Personal Unlocking Key 1 |
| 01 | Personal Unlocking Key 2 |
| 10 | Personal Unlocking Key 3 |
| 11 | Personal Unlocking Key 4 |
Shown in Fig. 3 is the flow chart of the automotive electronics door lock operation method that adopts of first embodiment of the invention, and the step of automotive electronics door lock operation method is as follows:
Step 10: in the door lock controller in vehicle remote control key and the vehicle identical key list is set, described key list comprises a plurality of next Personal Unlocking Key indication codes and Personal Unlocking Key, and the unique corresponding Personal Unlocking Key of each next Personal Unlocking Key indication code
Step 20: the car owner is by pushing release button or the lock car button on the remote-control key, and the door lock controller in vehicle sends the wireless signal frame.When carrying out unlocking operation, need push the release button on the remote-control key, controller in the remote-control key reads the employed Personal Unlocking Key of this unlocking operation from buffer at this moment, produce a next Personal Unlocking Key indication code simultaneously, the pairing Personal Unlocking Key of this release next time indication code is different from described employed Personal Unlocking Key of unlocking operation this time, above-mentioned Personal Unlocking Key and next Personal Unlocking Key indication code is put into third and fourth field of release wireless signal frame respectively and release wireless signal frame is sent to the door lock controller of vehicle.After transmission finishes, remote-control key is according to finding corresponding Personal Unlocking Key in the key list of next Personal Unlocking Key indication code in remote-control key that produces, and the Personal Unlocking Key that it is used during as next unlocking operation is kept in the buffer, simultaneously the employed Personal Unlocking Key of this unlocking operation is deleted employed Personal Unlocking Key when promptly in buffer, only keeping next release from buffer.When carrying out the operation of lock car, need push the lock car button on the remote-control key, this moment, remote-control key sent lock vehicle radio signal frame with the door lock controller in vehicle.Door lock controller in the vehicle judges whether to have received the wireless signal frame that is sent by remote-control key.If received described wireless signal frame, then entered step 30; Otherwise, wait at step 20 place.
Step 30: the door lock controller in the vehicle judges whether received wireless signal frame is to be sent by the remote-control key corresponding with this car.In this step, door lock controller in the vehicle is resolved the wireless signal frame that receives, obtain whole field informations of described wireless signal frame, and judge according to first field wherein whether received wireless signal frame is to be sent by the key corresponding with this car, if then enter step 40; Otherwise, return step 20.
Step 40: door lock controller judges that the operation that the current needs of car owner carry out is unlocking operation or the operation of lock car.In this step, the door lock controller in the vehicle is judged according to second field of the wireless signal frame that receives, is known which kind of operation current car owner need carry out.For example, when described second field is 2 bit lengths, judge that the car owner need carry out unlocking operation, judge that the car owner need lock the car operation if value is 00 if the value of described second field is 11.When judging that the current needs of car owner are locked the car operation, enter step 50; When judgement need be carried out unlocking operation, enter step 60.
Step 50: in this step, the door lock controller in the vehicle is carried out the operation of lock car, returns step 20 then.
Step 60: judge whether Personal Unlocking Key is consistent.In this step, the door lock controller in the vehicle is compared the Personal Unlocking Key of preserving in the buffer in the Personal Unlocking Key in the 3rd field of the wireless signal frame that receives and the door lock controller, to determine the two whether unanimity.If the two unanimity illustrates that then current car owner possesses the release authority, enters step 70; Otherwise, illustrate that current car owner does not possess the release authority, returns step 20.
Step 70: carry out unlocking operation and read next Personal Unlocking Key indication code.In this step, the door lock controller in the vehicle is carried out unlocking operation.Simultaneously, door lock controller is read next Personal Unlocking Key indication code from the 4th field of the wireless signal frame that receives.Enter step 80 then.
Step 80: employed Personal Unlocking Key when preserving next unlocking operation in the door lock controller in the vehicle.In this step, door lock controller in the vehicle employed Personal Unlocking Key when finding next release in the key list of next Personal Unlocking Key indication code in door lock controller that reads, and be kept in its inner buffer, from buffer, delete the employed Personal Unlocking Key of this unlocking operation simultaneously.Then, return step 20.
According to above-mentioned vehicle electric door lock operation method as can be known, employed Personal Unlocking Key is different during each release, and when carrying out unlocking operation at every turn, consult the employed Personal Unlocking Key of next unlocking operation by next Personal Unlocking Key indication code between remote-control key and the door lock controller, even people's malicious intercepted has been arranged like this release wireless signal frame is also understood sign indicating number, employed Personal Unlocking Key in the time of also can't obtaining next unlocking operation.
In order to strengthen security performance, employed Personal Unlocking Key difference during the not only each release of the disclosed technical scheme of second embodiment of the invention, the employed receive frequency of door lock controller during each release in the vehicle is also inequality.Shown in the accompanying drawing 4 is the release wireless signal frame structure that second embodiment of the invention adopts.This signal frame structure is made up of five fields, and preceding four fields are consistent with four fields in the frame of release wireless signal shown in the accompanying drawing 1, do not repeat them here.The 5th field that increases is next receive frequency indication code, when it is used to indicate next unlocking operation, and the employed receive frequency value of receiver in the door lock controller in the vehicle.
Second embodiment of the invention also needs to be provided with in advance identical receive frequency table except needs are provided with the identical key list in advance in the door lock controller in remote-control key and the vehicle.Shown in the table 2 is the employed receive frequency table of second embodiment of the invention, and it is available to have four different receive frequency values, and the length of next receive frequency indication code is 2 bits.Adopt more receive frequencies if desired, then need to expand the length of next receive frequency indication code and the capacity of receive frequency table.
Table 2: receive frequency table
| Next receive frequency indication code | The receive frequency value |
| 00 | Frequency 1 |
| 01 | Frequency 2 |
| 10 | Frequency 3 |
| 11 | Frequency 4 |
The vehicle lock vehicle radio signal frame structure that second embodiment of the invention adopted does not change, with consistent shown in the accompanying drawing 2.
Shown in Fig. 5 is the vehicle electric door lock operation method flow that second embodiment of the invention adopts, and is described in detail as follows:
Step 110: in advance in the door lock controller in vehicle remote control key and the vehicle, identical key list and receive frequency table are set.
Step 120: the car owner pushes release button or the lock car button on the remote-control key, sends the wireless signal frame with the door lock controller of receive frequency in vehicle of the next receive frequency indication code appointment that produces when the unlocking operation last time.When carrying out unlocking operation, need push the release button on the remote-control key, controller in the remote-control key reads employed Personal Unlocking Key of this unlocking operation and tranmitting frequency value from buffer at this moment, produce next Personal Unlocking Key indication code and next receive frequency indication code simultaneously, the pairing Personal Unlocking Key of described next Personal Unlocking Key indication code is different from the described employed Personal Unlocking Key of unlocking operation this time, with above-mentioned Personal Unlocking Key, next time, Personal Unlocking Key indication code and next receive frequency indication code were put into the 3rd field of release wireless signal frame respectively, in the 4th field and the 5th field, and release wireless signal frame is sent to door lock controller in the vehicle with the tranmitting frequency that reads.After transmission finishes, remote-control key is according to finding corresponding Personal Unlocking Key in the next Personal Unlocking Key indication code key list within it that produces, and the Personal Unlocking Key that uses during as next unlocking operation is kept in the buffer, and employed Personal Unlocking Key is deleted from buffer during simultaneously with this unlocking operation; According to finding corresponding receive frequency value in the next receive frequency indication code receive frequency table within it that produces, this receive frequency value is kept in the buffer as next release or the employed tranmitting frequency value of lock car when operation remote-control key, and employed tranmitting frequency value is deleted from buffer during simultaneously with this unlocking operation.When carrying out the operation of lock car, need push the lock car button on the remote-control key, this moment, remote-control key read the tranmitting frequency value from buffer, and sent lock vehicle radio signal frame with the door lock controller of tranmitting frequency in vehicle that reads.Door lock controller in the vehicle receives described wireless signal frame in the frequency range of described receive frequency value correspondence.If received described wireless signal frame, then entered step 130; Otherwise, wait at step 120 place.
Step 130: the door lock controller in the vehicle judges whether received wireless signal frame is to be sent by the key corresponding with this car.In this step, door lock controller in the vehicle is resolved the wireless signal frame that receives, obtain whole field informations of described wireless signal frame, and judge according to first field wherein whether received wireless signal frame is to be sent by the key corresponding with this car, if then enter step 140; Otherwise, return step 120.
Step 140: door lock controller judges that the operation that the current needs of car owner carry out is unlocking operation or the operation of lock car.In this step, the door lock controller in the vehicle is judged according to second field of the wireless signal frame that receives, is known which kind of operation current car owner need carry out.For example, when described second field is 2 bit lengths, judge that the car owner need carry out unlocking operation, judge that the car owner need lock the car operation if value is 00 if the value of described second field is 11.When judging that the current needs of car owner are locked the car operation, enter step 150; When judgement need be carried out unlocking operation, enter step 160.
Step 150: in this step, the door lock controller in the car is carried out the operation of lock car, returns step 120 then.
Step 160: judge whether Personal Unlocking Key is consistent.In this step, the door lock controller in the car is compared the Personal Unlocking Key of current preservation in the buffer of the Personal Unlocking Key in the 3rd field of the wireless signal frame that receives and door lock controller, to determine the two whether unanimity.If the two unanimity illustrates that then current car owner possesses the release authority, and enters step 170; Otherwise, illustrate that current car owner does not possess the release authority, and return step 120.
Step 170: carry out unlocking operation and read next Personal Unlocking Key indication code and next receive frequency indication code.In this step, the door lock controller in the vehicle is carried out unlocking operation.Simultaneously, door lock controller is read next Personal Unlocking Key indication code from the 4th field of the wireless signal frame that receives, read next receive frequency indication code from the 5th field.Enter step 180 then.
Step 180: the door lock controller in the vehicle is preserved the Personal Unlocking Key that next release is used, and sets employed receive frequency when operating next time.In this step, door lock controller in the vehicle employed Personal Unlocking Key when finding next release in the key list of next Personal Unlocking Key indication code in door lock controller of reading, and be kept in its inner buffer employed Personal Unlocking Key when from buffer, deleting this unlocking operation simultaneously; According to the next receive frequency indication code of reading, find corresponding receive frequency value in the receive frequency table within it, and with the receiver in the door lock controller be tuned on the frequency range of described receive frequency value correspondence.Then, return step 120.
Describe as can be known according to above-mentioned flow process, the described technical scheme of present embodiment employed receive frequency when each unlocking operation also is different, makes the possibility of illegal unlocking vehicle car door reduce more.
Be replicated by key list of borrowing and causing or receive frequency table for fear of the vehicle remote control key, vehicle Inner door lock controller also comprises a replacement button, a data output interface, the data output interface that also has a correspondence on remote-control key.Use data wire to connect two data output interfaces, after pressing the replacement button, next Personal Unlocking Key indication code in the key list of preserving in the door lock controller and the original corresponding relation between the Personal Unlocking Key will be upset, and then establish between the two new corresponding relation again, so just constituted a new key list that is different from original key list, door lock controller is imported described new key list in the remote-control key by data wire then, and replaces the original key list in the remote-control key.Like this, after key list is reset, even people's fraudulent copying the has been arranged original key list in the remote-control key also can't be opened car door.In order to improve safety, also can adopting uses the same method resets to control the receive frequency table of preserving in itself and the remote-control key at door lock.Can adopt following method to reset: to adopt random number algorithm of the prior art, each Personal Unlocking Key in the key list is produced a next Personal Unlocking Key indication code at random, and guarantee that any two the next Personal Unlocking Key indication codes in the key list are all inequality.Adopting uses the same method resets to receiving frequency meter.
After being replicated, key list or receive frequency table carry out the success rate that malice cracks in order to reduce by the method for exhaustion, can determine the length of next Personal Unlocking Key indication code or next receive frequency indication code like this: establish the number of bits that N is above-mentioned two kinds of indication codes, M is the number of Personal Unlocking Key or receive frequency value, and then N gets and can make equation 2
NArbitrary value that=kM sets up, wherein parameter k is the integer greater than zero, preferably, (Personal Unlocking Key is 16 bit length, has 2 when M is 65536
16=65536 kinds of variations, therefore all Personal Unlocking Key has 65535), when k was 2, the N value was 17.
Fig. 6 is an electronic door lock system 100 disclosed in this invention, comprises the door lock controller 20 in remote-control key 10 and the vehicle.Described remote-control key 10 comprises controller 11, emitter 12, button 13, buffer 14, receive frequency table 15, key list 16 and data-interface 17.Described controller 11 is connected with button 13, emitter 12, buffer 14, receive frequency table 15, key list 16 and data-interface 17, when the release button in the button is pressed, controller 11 reads employed Personal Unlocking Key of this release and tranmitting frequency value from buffer 14, produce next Personal Unlocking Key indication code and next receive frequency indication code according to the random number algorithm simultaneously.Described Personal Unlocking Key, next Personal Unlocking Key indication code and next receive frequency indication code are put into the 3rd field, the 4th field and the 5th field of release wireless signal frame respectively, then described release wireless signal frame is sent to door lock controller 20 by emitter 12 in the frequency range of described transmission frequency value correspondence.After described release wireless signal frame transmission finishes, controller 11 finds corresponding Personal Unlocking Key according to the next Personal Unlocking Key indication code that produces and is kept in the buffer in key list 16, employed Personal Unlocking Key is deleted from buffer during simultaneously with this release; In receive frequency table 15, find corresponding receive frequency value according to the next receive frequency indication code that produces, this receive frequency value is the opposite equip. of remote-control key 10, it is door lock controller 20, when next unlocking operation, need be tuned to frequency values, this receive frequency value also is that remote-control key 10 is launched the employed frequency values of release wireless signal frame when next unlocking operation simultaneously, controller 11 is kept at described receive frequency value in the buffer 14 as the tranmitting frequency value of remote-control key when the next unlocking operation, will employed tranmitting frequency value delete from buffer when this unlocking operation simultaneously.Described emitter 12 is used to send release wireless signal frame or lock vehicle radio signal frame.Described button 13 comprises release button and lock car button.Employed tranmitting frequency value when employed Personal Unlocking Key and next release or the operation of lock car when described buffer is used to preserve next unlocking operation.Described receive frequency table is used to preserve the employed whole receive frequency values of door lock controller, and this receive frequency value is corresponding to the employed whole tranmitting frequency values of remote-control key.Described key list 16 is used for preserving whole Personal Unlocking Keys that unlocking operation can use.Data-interface 17, it is used for receiving new key list and/or receive frequency table from door lock controller after the key list of door lock controller or the replacement of receive frequency table.
Described door lock controller 20 comprises: key list 22, it is used for preserving whole Personal Unlocking Keys that unlocking operation can use.Receive frequency table 23, its be used to preserve door lock controller the whole receive frequency values that can use.Buffer 24, employed Personal Unlocking Key and presently used receive frequency value when it is used to preserve unlocking operation.Replacement button 25, its be used to reset key list 22 and receive frequency table 23.Receiver 26, it is used to receive whole wireless signal frames that remote-control key sends.Controller 21, itself and described key list 22, receive frequency table 23, buffer 24, replacement button 25, receiver 26 links to each other with data-interface 27, be used for receive frequency value from the buffer reading and saving, and with receiver 26 be tuned to the frequency range of this receive frequency value correspondence, after receiving wireless data frame, it is resolved, obtain whole fields of wherein carrying, whether and to discern received wireless data frame be to be sent by the remote-control key corresponding with vehicle, judgement is to carry out unlocking operation or carry out the operation of lock car, when judging the execution unlocking operation, from buffer 14, obtain this Personal Unlocking Key and compare to judge whether the having release authority with the Personal Unlocking Key that receives, when judgement possesses the release authority, carry out unlocking operation and according to the next Personal Unlocking Key indication code and the receive frequency indication code that carry in the release wireless data frame, in key list 22 and receive frequency table 23, search corresponding Personal Unlocking Key and receive frequency value respectively, Personal Unlocking Key is kept in the buffer 24, simultaneously the employed Personal Unlocking Key of this unlocking operation is deleted from buffer 24; With receiver 26 be tuned on the frequency range corresponding with the described receive frequency value that finds.
Claims (10)
1. vehicle unlock method, it is characterized in that: when carrying out unlocking operation, include Personal Unlocking Key and next Personal Unlocking Key indication code in the release wireless signal frame of the door lock controller of the remote-control key of vehicle in sending to vehicle, whether described Personal Unlocking Key only is used to checking when this unlocking operation have authority to carry out unlocking operation, and described next Personal Unlocking Key indication code is used to specify employed Personal Unlocking Key when next unlocking operation.
2. vehicle unlock method according to claim 1, it is characterized in that: before carrying out unlocking operation, in the door lock controller in the remote-control key of vehicle and the vehicle, identical key list is set, described key list comprises a plurality of next Personal Unlocking Key indication codes and Personal Unlocking Key, and the unique corresponding Personal Unlocking Key of each next Personal Unlocking Key indication code.
3. vehicle unlock method as claimed in claim 2 is characterized in that: described next Personal Unlocking Key indication code produces in the following way:
From the key list that is provided with therein, select a described next Personal Unlocking Key indication code by described remote-control key at random, and selected described next Personal Unlocking Key indication code is all inequality when each unlocking operation;
Perhaps, use the random number algorithm to produce a positive integer value at random, add that by the described next Personal Unlocking Key indication code that produces when the preceding unlocking operation this positive integer value produces described next Personal Unlocking Key indication code.
4. as vehicle unlock method as described in the claim 3, it is characterized in that: the described Personal Unlocking Key that comprises in the described release wireless signal frame is searched acquisition according to the described next Personal Unlocking Key indication code that produces when the preceding unlocking operation in key list.
5. as vehicle unlock method as described in any in the claim 2 to 4, it is characterized in that: also comprise the step that described key list is reset, the step of described replacement is specially: redefine the one-to-one relationship between each the described next Personal Unlocking Key indication code and described Personal Unlocking Key in the described key list.
6. a vehicle unlock method is characterized in that comprising the steps:
A: in the door lock controller in vehicle remote control key and the vehicle identical key list is set, described key list comprises a plurality of next Personal Unlocking Key indication codes and Personal Unlocking Key, and the unique corresponding Personal Unlocking Key of each next Personal Unlocking Key indication code;
B: when carrying out this unlocking operation, described remote-control key sends release wireless signal frame to described door lock controller, comprise Personal Unlocking Key and next Personal Unlocking Key indication code in this release wireless signal frame, preserve and the corresponding Personal Unlocking Key of described next Personal Unlocking Key indication code;
C: described door lock controller verifies whether this unlocking operation is effective;
D: if effectively, described door lock controller is carried out unlocking operation, and preservation and the corresponding Personal Unlocking Key of described next Personal Unlocking Key indication code;
Wherein, corresponding with described next Personal Unlocking Key indication code Personal Unlocking Key is used when next unlocking operation.
7. vehicle unlock method as claimed in claim 6 is characterized in that: the next Personal Unlocking Key indication code described in the step B produces in the following way:
From the key list that is provided with therein, select a described next Personal Unlocking Key indication code by described remote-control key at random, and selected described next Personal Unlocking Key indication code is all inequality when each unlocking operation;
Perhaps, use the random number algorithm to produce a positive integer value at random, add that by the described next Personal Unlocking Key indication code that produces when the preceding unlocking operation this positive integer value produces described next Personal Unlocking Key indication code.
8. as claim 6 or 7 described vehicle unlock methods, it is characterized in that: described step C specifically comprises: employed Personal Unlocking Key compares during this unlocking operation that the described Personal Unlocking Key in the described release wireless signal frame and door lock controller are preserved, if the two unanimity verifies that then this unlocking operation is effective; Wherein, during described this unlocking operation employed Personal Unlocking Key to be described door lock controller once effectively obtain from the key list that is provided with described door lock controller according to the described next Personal Unlocking Key indication code that comprises in the described release wireless signal frame that receives during unlocking operation preceding.
9. as claim 6 or 7 described vehicle unlock methods, it is characterized in that: the number of bits of described next Personal Unlocking Key indication code and Personal Unlocking Key is determined in the following way: establish the number of bits that N is next Personal Unlocking Key indication code, M is the number of bits of Personal Unlocking Key, and then N gets and makes equation 2
N-MArbitrary value that=k sets up, wherein parameter k is a positive integer.
10. as vehicle unlock method as described in any in the claim 6 to 8, it is characterized in that: also comprised the step that described key list is reset before described steps A, the step of described replacement is specially: redefine the one-to-one relationship between each the described next Personal Unlocking Key indication code and described Personal Unlocking Key in the described key list.
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|---|---|---|---|
| CN 201110154197 CN102251713A (en) | 2011-06-02 | 2011-06-02 | Unlocking method of vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110154197 CN102251713A (en) | 2011-06-02 | 2011-06-02 | Unlocking method of vehicle |
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| WO2018108060A1 (en) * | 2016-12-14 | 2018-06-21 | 余仁植 | Vehicle unlocking method, locking/unlocking device, vehicle, and vehicle system |
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| CN111275862A (en) * | 2020-02-14 | 2020-06-12 | 京东方科技集团股份有限公司 | Unlocking method, door lock and door lock system |
| CN104442702B (en) * | 2014-07-28 | 2020-07-28 | 冯林 | Keyless entry system for automobile |
| CN111508108A (en) * | 2020-03-20 | 2020-08-07 | 中能瑞通（北京）科技有限公司 | Encryption system and decryption system for intelligent lock data communication |
| US11433853B2 (en) | 2019-03-29 | 2022-09-06 | Guangzhou Xiaopeng Motors Technology Co., Ltd. | Vehicle unlocking authentication method and apparatus based on terminal device |
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Application publication date: 20111123 |