CN104408794B - Identification code acquisition method of multiple intelligent keys, and system thereof - Google Patents
Identification code acquisition method of multiple intelligent keys, and system thereof Download PDFInfo
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- CN104408794B CN104408794B CN201410617431.2A CN201410617431A CN104408794B CN 104408794 B CN104408794 B CN 104408794B CN 201410617431 A CN201410617431 A CN 201410617431A CN 104408794 B CN104408794 B CN 104408794B
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Abstract
The invention provides an identification code acquisition method of multiple intelligent keys. The method includes the following steps: a controller sends out a first low frequency message to multiple intelligent keys, wherein the first low frequency message includes an initial wakeup code and a first data packet, and the first data packet defines the reply time window quantity and rules in this round of query; if the wakeup code of the second wakeup register of each of the intelligent keys is equal to the initial wakeup code, the intelligent keys set the response time windows on the basis of respective identification codes according to the rules, and reply the respective identification codes at the time windows; the controller receives the identification code of replied by one of the intelligent keys and then sends out a second low frequency message, wherein the second low frequency message includes a specific key wakeup code associated with the identification code replied by the one of the intelligent keys and a second data packet, and the second data packet includes a controller wakeup code; and if the wakeup code of the first wakeup register of the intelligent keys is equal to the specific key wakeup code, the intelligent key updates the wakeup code of the second wakeup register to the controller wakeup code.
Description
Technical field
The present invention relates to automobile technical field, particularly to a kind of identification code acquisition methods of many Intelligent key and be
System.
Background technology
Vehicle Controller to the acquisition of key identification code (ide, identifier) be car load offline front must complete one
Individual step.Passive keyless enters at present, activation system (peps system, passive entry＆passive start) obtains
The method of Intelligent key identification code is typically used for reference remote key and is entered system (rke, remote keyless entry) or start
Machine burglary-resisting system (immo, immobilizer) is designed.
The key ide acquisition process setting controller first of rke system is learning model, and requires manually to operate key to press
Key, triggering key sends the high frequency message comprising ide information, and controller preserves after receiving and being judged.This mode is not
Foot has: 1) needs manpower intervention, there is the risk that artificial incorrect operation leads to；2) operation can only obtain the ide of a key every time；3)
Easily it is subject to external disturbance, in the widow time of controller study, as long as there being the high frequency message meeting key combination to occur, controller
Ide therein all can be recorded.
The key ide acquisition process of immo system requires manually by handle, key to be put in antenna communication context, controller
Pass through the ide that two-way low frequency communication obtains key after being triggered.The deficiency of this mode has: 1) needs manpower intervention, exists artificial
The risk that maloperation leads to；2) operation can only obtain the ide of a key every time；3) in learning process, many keys are easily mutually dry
Disturb, when in many communication contexts that key is present in antenna, many keys may response controller simultaneously order, lead to communicate
Fail, or lead to key chip maloperation to cause and scrap.Connected mode between the mode of operation to workman and key has must
Ask.
Content of the invention
The present invention provides a kind of identification code acquisition methods of many Intelligent key and system, obtains intelligence to solve prior art
Manpower intervention can be needed to operate during the identification code of key, and the problem that can interfere in the presence of many keys.
For solving above-mentioned technical problem, the present invention provides a kind of identification code acquisition methods of many Intelligent key, comprising:
Step one: controller sends the first low frequency message to many Intelligent key, and described first low frequency message includes initially
Wake up code and the first packet, the number of windows and rule turnaround time of this wheel inquiry of described first packet definitions；If every
The wake-up code of the second wake-up depositor of Intelligent key is equal to initial wake-up code, then Intelligent key presses institute according to respective identification code
State the time window of rule settings response, and reply the identification code of oneself in this time window；
Step 2: described controller sends the second low frequency report to it after receiving the identification code that certain Intelligent key is replied
Literary composition, the specific keys that the identification code that described second low frequency message includes replying with this Intelligent key associates wake up code and the second data
Bag, described second packet includes controller and wakes up code；If the wake-up code of the first wake-up depositor of this Intelligent key is equal to spy
Determine key and wake up code, then the wake-up code of the described second wake-up depositor is updated to controller and wakes up code by this Intelligent key.
Further, in the identification code acquisition methods of many described Intelligent key, if controller is in same reply
Between window reception to many Intelligent key response, then controller acquiescence do not receive the response of above-mentioned Intelligent key, will enter
The acquisition of next round Intelligent key identification code；In step one, controller redefines window number turnaround time of this wheel inquiry
Amount and rule；If the wake-up code of the second wake-up depositor of Intelligent key is equal to initial wake-up code, Intelligent key is according to each
Identification code press the time window of described rule settings response, and reply the identification code of oneself in this time window.
Further, in the identification code acquisition methods of many described Intelligent key, in step one, during described reply
Between number of windows be more than or equal to Intelligent key quantity.
Further, in the identification code acquisition methods of many described Intelligent key, in step one, described rule is
The section size of the identification code of specified Intelligent key and section sequence number, if wake-up code of the second wake-up depositor of Intelligent key etc.
Wake up code in initial, the identification code of oneself is cut into slices and generated corresponding section sequence number, Intelligent key by described Intelligent key
According to the time window of this wheel response of the data setting in specified section sequence number, and reply the identification of oneself in this time window
Code.
Further, in the identification code acquisition methods of many described Intelligent key, the often wheel inquiry of described controller
Individually triggered or voluntarily triggered by a monitoring device.
Further, in the identification code acquisition methods of many described Intelligent key, when the often wheel of described controller is looked into
When inquiry is individually triggered by described monitoring device, in the first low frequency message that described controller sends, also include the generation of monitoring device
Code, and the code of this monitoring device is confirmed when receiving the response of Intelligent key.
Accordingly, the present invention also provides a kind of identification code of many Intelligent key to obtain system, comprising: many Intelligent key
And controller；Described Intelligent key includes the first wake-up depositor and the second wake-up depositor；
Described controller sends the first low frequency message to many Intelligent key, and described first low frequency message includes initially waking up
Code and the first packet, the number of windows and rule turnaround time of this wheel inquiry of described first packet definitions；If every intelligence
The wake-up code of the second wake-up depositor of key is equal to initial wake-up code, then Intelligent key presses described rule according to respective identification code
Then set the time window of response, and reply the identification code of oneself in this time window；Described controller receives certain intelligence
After the identification code that key is replied, it is sent with the second low frequency message, described second low frequency message includes and the reply of this Intelligent key
The specific keys of identification code association wake up code and the second packet, and described second packet includes controller and wakes up code；If this intelligence
The wake-up code of the first wake-up depositor of energy key is equal to specific keys and wakes up code, then this Intelligent key wakes up described second and posts
The wake-up code of storage is updated to controller and wakes up code.
Further, in the identification code acquisition system of many described Intelligent key, if controller is in same reply
Between window reception to many Intelligent key response, then controller acquiescence do not receive the response of above-mentioned Intelligent key, will enter
The acquisition of next round Intelligent key identification code, controller redefines the number of windows and rule turnaround time of this wheel inquiry；If
The wake-up code of the second wake-up depositor of Intelligent key is equal to initial wake-up code, then Intelligent key presses institute according to respective identification code
State the time window of rule settings response, and reply the identification code of oneself in this time window.
Further, in the identification code acquisition system of many described Intelligent key, described turnaround time number of windows
Quantity more than or equal to Intelligent key.
Further, in the identification code acquisition system of many described Intelligent key, described rule is for specifying intelligence key
The section size of identification code of spoon and section sequence number, if the wake-up code of the second wake-up depositor of Intelligent key is equal to initial wake-up
Code, the identification code of oneself cut into slices and generated corresponding section sequence number by described Intelligent key, and Intelligent key is according to specifying
The time window of this wheel response of the data setting in section sequence number, and the identification code of oneself is replied in this time window.
Further, in the identification code acquisition system of many described Intelligent key, the often wheel inquiry of described controller
Individually triggered or voluntarily triggered by a monitoring device.
Further, in the identification code acquisition system of many described Intelligent key, when the often wheel of described controller is looked into
When inquiry is individually triggered by described monitoring device, in the first low frequency message that described controller sends, also include the generation of monitoring device
Code, and the code of this monitoring device is confirmed when receiving the response of Intelligent key.
The identification code acquisition methods of many Intelligent key and system that the present invention provides, have the advantages that this
The identification code that bright controller obtains all Intelligent key is not required to want artificial operation intervention；Realize double between controller and Intelligent key
To communication, Intelligent key turnaround time window by controller management, the feature by itself identification code is affected, and is not in expectation
Outer interferes with each other；All of Intelligent key can be placed in same communication zone simultaneously, and once-through operation completes all intelligent keys
The acquisition of the identification code of spoon.
Brief description
Fig. 1 is identification code section size and the section sequence number distribution schematic diagram of the Intelligent key of the preferred embodiment of the present invention；
Fig. 2 is the identification code section schematic diagram of the Intelligent key of the preferred embodiment of the present invention；
Fig. 3 is that during the section serial number 0 of the preferred embodiment of the present invention, Intelligent key replys time diagram；
Fig. 4 is that during the section serial number 1 of the preferred embodiment of the present invention, Intelligent key replys time diagram.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the identification code acquisition methods of many Intelligent key proposed by the present invention are made
Further describe.According to following explanation and claims, advantages and features of the invention will become apparent from.Should be noted
It is that accompanying drawing, all in the form of very simplification and all using non-accurately ratio, only in order to convenience, lucidly aids in illustrating this
The purpose of bright embodiment.
The present invention provides a kind of identification code of many Intelligent key to obtain system, comprising: many Intelligent key and controller；
Described Intelligent key includes the first wake-up depositor wup1 and second wake-up depositor wup2；
Described first wake-up depositor wup1 comprise 32bit wake-up code low frequency message, setting wup1 wake-up code with
The identification code association of Intelligent key, i.e. wup_keyide=f (ide), wup_keyide=ide in the present embodiment；
Described second wake-up depositor wup2 equally comprises the low frequency message of the wake-up code of 32bit, the wake-up of setting wup2
Code is associated with a certain address of variable in the memorizer (eeprom) of Intelligent key, particularly, the wake-up code initial value of described wup2
Given when producing, the initial value of all Intelligent key is identical.
Identification code based on many Intelligent key obtains system, the invention provides a kind of identification code of many Intelligent key
Acquisition methods, comprise the following steps:
Step one: controller sends the first low frequency message to many Intelligent key, and described first low frequency message includes initially
Wake up code wup_default and the first packet, this wheel inquiry of described first packet definitions turnaround time number of windows and
Rule；If the wake-up code of the second wake-up depositor of every Intelligent key is equal to initial wake-up code wup_default, intelligent key
Spoon presses the time window of described rule settings response according to respective identification code ide, and replys the knowledge of oneself in this time window
Other code；
Specifically, the turnaround time of this wheel inquiry defined in the first packet of the first low frequency message that controller sends
Number of windows, this time window quantity should be greater than the quantity equal to Intelligent key.Also define rule, in the present embodiment simultaneously
In, rule is section size ide_slice_size of identification code specifying Intelligent key and section sequence number ide_slice_
index.For example, as shown in Figure 1 it is desirable to section size ide_slice_size=4, then the identification code of 32bit is with 4 bit
Split for one group, 8 groups of sections will be generated, that is, section sequence number ide_slice_index is 0-8.
Further as shown in Fig. 2 the present embodiment is taking 4 Intelligent key as a example, the identification code ide of oneself is entered by Intelligent key
Row is cut into slices and is generated corresponding section sequence number.Certainly, how requirement can also be when initial for described section size and section sequence number
Just it is set in controller and Intelligent key, when the first low frequency message need not be sent by controller, tell Intelligent key.
Then, as shown in figure 3, in the present embodiment, section sequence number ide_slice_index specified by controller is 0, then
The Intelligent key just time window according to this wheel response of the data setting in the section sequence number specified, and reply in this time window
The identification code of oneself.For example, key1 section sequence number 0 data be 0010, be converted to binary system be equal to 2, that is, key1 should when
Between reply the ide of oneself in window 2；Key2 is 0011 in the data of section sequence number 0 in the same manner, is converted to binary system and is equal to 3, that is,
Key2 should reply the ide of oneself in time window 3；Key3 is 0010 in the data of section sequence number 0 in the same manner, is converted to binary system
Equal to 2, that is, key3 should reply the ide of oneself in time window 2；Key4 is 0000 in the data of section sequence number 0 in the same manner, conversion
It is equal to 0 for binary system, that is, key4 should reply the ide of oneself in time window 0.
In the present invention one preferred embodiment, if controller same turnaround time window reception to many Intelligent key
Response, then controller acquiescence do not receive the response of above-mentioned Intelligent key.Obviously in the present embodiment, key1 and key3 all exists
Time window 2 has replied the ide of oneself, and due to occurring in that communication conflict, controller is not received their response.
Step 2: described controller sends the second low frequency report to it after receiving the identification code that certain Intelligent key is replied
Literary composition, the specific keys that the identification code that described second low frequency message includes replying with this Intelligent key associates wake up code wup_keyide
With the second packet, described second packet include controller wake up code wup_ecu；If the first wake-up of this Intelligent key is deposited
The wake-up code of device be equal to specific keys wake up code wup_keyide, then this Intelligent key by described second wake-up depositor wake-up
Code is updated to controller and wakes up code wup_ecu.
In the present embodiment, after controller have received the ide of key2 and key4, controller sends wake-up code respectively and is
The second low frequency message of wup_keyide2 and wup_keyide4, if the wake-up code division of the first wake-up depositor of key2 and key4
Not Deng Yu wup_keyide2 and wup_keyide4, key2 and key4 is respectively by the wake-up code of the oneself second wake-up depositor more
Newly wake up code wup_ecu for controller.After being provided with, when controller afterwards obtains the ide of remaining Intelligent key, key2 and
The message commands of the wup=wup_default that no longer response controller is sent by key4.
So far, controller only obtains the ide of key2 and key4, because key1 and key3 replys in same time window
The ide of oneself, therefore, will carry out the acquisition of next round Intelligent key identification code, same repeat step one and step 2, different
It is in step one, controller should redefine the number of windows and rule turnaround time of this wheel inquiry, so that key1 and key3
The ide of oneself is not replied in same time window.For example this wheel specifies section size ide_slice_size=4, sequence number of cutting into slices
Ide_slice_index is 1.
If especially it is noted that terminating by last round of all time windows, controller does not receive all intelligence yet
The identification code of key, equally also will carry out the acquisition of new round Intelligent key identification code, until obtaining all Intelligent key
Till identification code.
As shown in figure 4, in this wheel, key2 and key4 has mourned in silence, no longer respond.Key1 is in section sequence number 1
Data be 0001, be converted to binary system be equal to 1, that is, key1 should reply the ide of oneself in time window 1；Key3 is in section
The data of sequence number 1 is 0000, is converted to binary system and is equal to 0, that is, key3 should reply the ide of oneself in time window 0.Controller
The second low frequency message is sent, first as key1 and key3 wakes up depositor after the identification code receiving key1 and key3 reply
When waking up code respectively equal to wup_keyide1 and wup_keyide3, key1 and key3 is all by the second wake-up depositor of oneself
Wake up code and be updated to controller wake-up code wup_ecu.Base this, control and obtain the ide of all 4 Intelligent key.
Particularly, the often wheel inquiry of described controller individually can be triggered it is also possible to voluntarily trigger by a monitoring device.When
When individually being triggered, also include the code of monitoring device by monitoring device in the first low frequency message that described controller sends, and
Confirm the code of this monitoring device during the response receiving Intelligent key, the correctness that Intelligent key is replied is confirmed with this.
Foregoing description is only the description to present pre-ferred embodiments, not any restriction to the scope of the invention, this
Any change that the those of ordinary skill in bright field does according to the disclosure above content, modification, belong to the protection of claims
Scope.
Claims (12)
1. a kind of identification code acquisition methods of many Intelligent key are it is characterised in that include:
Step one: controller sends the first low frequency message to many Intelligent key, and described first low frequency message includes initially waking up
Code and the first packet, the number of windows and rule turnaround time of this wheel inquiry of described first packet definitions；If every intelligence
The wake-up code of the second wake-up depositor of key is equal to initial wake-up code, then Intelligent key presses described rule according to respective identification code
Then set the time window of response, and reply the identification code of oneself in this time window；
Step 2: described controller sends the second low frequency message, institute to it after receiving the identification code that certain Intelligent key is replied
State specific keys wake-up code and the second packet that the second low frequency message includes associating, institute with the identification code of this Intelligent key reply
State the second packet and include controller wake-up code；If the wake-up code of the first wake-up depositor of this Intelligent key is equal to specific keys
Wake up code, then the wake-up code of the described second wake-up depositor is updated to controller and wakes up code by this Intelligent key.
As claimed in claim 1 the identification code acquisition methods of many Intelligent key it is characterised in that if controller is same
Turnaround time window reception to many Intelligent key response, then controller acquiescence do not receive the response of above-mentioned Intelligent key,
The acquisition of next round Intelligent key identification code will be entered；In step one, controller redefines the turnaround time of this wheel inquiry
Number of windows and rule；If the wake-up code of the second wake-up depositor of Intelligent key be equal to initial wake up code, Intelligent key according to
Press the time window of described rule settings response according to respective identification code, and reply the identification code of oneself in this time window.
3. as claimed in claim 1 or 2 the identification code acquisition methods of many Intelligent key it is characterised in that in step one,
Described turnaround time, number of windows was more than or equal to the quantity of Intelligent key.
4. as claimed in claim 1 or 2 the identification code acquisition methods of many Intelligent key it is characterised in that in step one,
Described rule is for specifying the section size of identification code and the section sequence number of Intelligent key, if the second wake-up depositor of Intelligent key
Wake-up code be equal to initial wake up code, the identification code of oneself is cut into slices and is generated corresponding section sequence by described Intelligent key
Number, Intelligent key is according to the time window of this wheel response of the data setting in the section sequence number specified, and returns in this time window
The multiple identification code of oneself.
5. as claimed in claim 1 many Intelligent key identification code acquisition methods it is characterised in that described controller every
Wheel inquiry is individually triggered or voluntarily triggered by a monitoring device.
6. as claimed in claim 5 the identification code acquisition methods of many Intelligent key it is characterised in that when described controller
When often wheel inquiry is individually triggered by described monitoring device, in the first low frequency message that described controller sends, also include monitoring device
Code, and confirm the code of this monitoring device when receiving the response of Intelligent key.
7. a kind of identification code of many Intelligent key obtains system it is characterised in that including: many Intelligent key and controller；
Described Intelligent key includes the first wake-up depositor and the second wake-up depositor；
Described controller sends the first low frequency message to many Intelligent key, described first low frequency message include initially waking up code with
First packet, the number of windows and rule turnaround time of this wheel inquiry of described first packet definitions；If every Intelligent key
The second wake-up depositor wake-up code be equal to initial wake up code, then Intelligent key is set by described rule according to respective identification code
Determine the time window of response, and reply the identification code of oneself in this time window；Described controller receives certain Intelligent key
After the identification code replied, it is sent with the second low frequency message, described second low frequency message includes the identification replied with this Intelligent key
The specific keys of code association wake up code and the second packet, and described second packet includes controller and wakes up code；If this intelligent key
The wake-up code of the first wake-up depositor of spoon is equal to specific keys and wakes up code, then this Intelligent key wakes up depositor by described second
Wake-up code be updated to controller wake up code.
If 8. the identification code of many Intelligent key obtains system it is characterised in that controller is same as claimed in claim 7
Turnaround time window reception to many Intelligent key response, then controller acquiescence do not receive the response of above-mentioned Intelligent key,
The acquisition of next round Intelligent key identification code will be entered, controller redefines the number of windows and rule turnaround time of this wheel inquiry
Then；If the wake-up code of the second wake-up depositor of Intelligent key is equal to initial wake-up code, Intelligent key is according to respective identification
Code is by the time window of described rule settings response, and replys the identification code of oneself in this time window.
9. the identification code of many Intelligent key obtains system it is characterised in that during described reply as claimed in claim 7 or 8
Between number of windows be more than or equal to Intelligent key quantity.
10. the identification code of many Intelligent key obtains system it is characterised in that described rule is as claimed in claim 7 or 8
The section size of the identification code of specified Intelligent key and section sequence number, if wake-up code of the second wake-up depositor of Intelligent key etc.
Wake up code in initial, the identification code of oneself is cut into slices and generated corresponding section sequence number, Intelligent key by described Intelligent key
According to the time window of this wheel response of the data setting in specified section sequence number, and reply the identification of oneself in this time window
Code.
The identification code of 11. many Intelligent key as claimed in claim 7 obtains system it is characterised in that described controller
Often wheel inquiry is individually triggered or voluntarily triggered by a monitoring device.
12. as claimed in claim 11 many Intelligent key identification code obtain system it is characterised in that work as described controller
Often wheel inquiry when individually being triggered by described monitoring device, also include monitoring in the first low frequency message that described controller sends and set
Standby code, and the code of this monitoring device is confirmed when receiving the response of Intelligent key.
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| CN201410617431.2A CN104408794B (en) | 2014-11-05 | 2014-11-05 | Identification code acquisition method of multiple intelligent keys, and system thereof |
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| CN201410617431.2A CN104408794B (en) | 2014-11-05 | 2014-11-05 | Identification code acquisition method of multiple intelligent keys, and system thereof |
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| CN111361526B (en) * | 2018-12-25 | 2023-03-28 | 法雷奥舒适驾驶助手公司 | Keyless entry and start system, communication method thereof, and vehicle comprising keyless entry and start system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19941428B4 (en) * | 1998-09-02 | 2015-09-10 | Marquardt Gmbh | Locking system, in particular for a motor vehicle |
| DE10112573C2 (en) * | 2001-03-15 | 2003-09-04 | Siemens Ag | Method for initializing an anti-theft system for a motor vehicle |
| GB0228032D0 (en) * | 2002-11-30 | 2003-01-08 | Koninkl Philips Electronics Nv | Wireless activation system, method and device |
| JP2008007974A (en) * | 2006-06-27 | 2008-01-17 | Sanyo Electric Co Ltd | Authentication device, portable machine, and base station |
| DE102011103674B3 (en) * | 2011-06-09 | 2012-12-13 | Audi Ag | Method and apparatus for teaching a plurality of keys to an authorization device of a vehicle |
| US9129455B2 (en) * | 2012-02-21 | 2015-09-08 | Fca Us Llc | System and method to enable passive entry |
| CN202970175U (en) * | 2012-06-01 | 2013-06-05 | 杭州双华智能家居有限公司 | Keyless entry intelligent lock capable of increasing and deleting key |
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