CN102673522B - Electronic key system - Google Patents
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- CN102673522B CN102673522B CN201210066221.XA CN201210066221A CN102673522B CN 102673522 B CN102673522 B CN 102673522B CN 201210066221 A CN201210066221 A CN 201210066221A CN 102673522 B CN102673522 B CN 102673522B
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Abstract
An electronic key system costing short time from receiving a requiring signal to sending a response signal is provided. The electronic key system comprises: a vehicle-mounted control part (21) carried on a vehicle (2), wherein, in the case of sending the requiring signal containing random data to a preset communication area and receiving the response signal for the requiring signal, when an operating result contained in the response signal is judged to be right, motion of a door locking device or starting of an engine control device is allowed; an electronic key control part (11) which is carried on an electronic key (10) and used for performing operation for the random data contained in the requiring signal from a vehicle, and sending the response signal containing the operating result; and a bit number measuring part (11a) which is carried on the electronic key and used for measuring receiving bit number of the requiring signal, wherein, when the bit number measuring part judges that the random data contained in the requiring signal has been received completely, the electronic key control part begins to operate.
Description
Technical field
The present invention relates to a kind of electron key system, between the device and electron key of lock front side, carry out wireless key verification.
Background technology
In recent years, vehicle is equipped with electron key system, by this electron key system, if user carries electron key, as long as operate the door contact interrupter be arranged on car door, just car door can be locked or unlock.Such as, Patent Document 1 discloses a kind of electron key system of challenge response mode.Within the system, from vehicle to car door periphery, transmission requires signal.This requires to comprise random data in signal.Electron key receives and requires signal, carries out crypto-operation to random data, and the acknowledge signal comprising this operation result is sent to vehicle.The operation result of vehicle to the operation result be included in acknowledge signal and vehicle self verifies, if this verification is set up, then allows to be locked by car door or unlock.Therefore, in the vehicle having carried this electron key system, even if when user does not find and takes out electron key from pocket or bag etc., also car door can be locked or unlock.
Patent documentation 1: Japanese Unexamined Patent Publication 2009-235668 publication
But, as shown in Figure 4, in the electron key system of patent documentation 1, electron key receive whole require signal after start crypto-operation.Usually, require that signal is except random data, also comprise the information that vehicle is intrinsic.That is, until complete the reception of N/R information in crypto-operation, crypto-operation can not start.Therefore, generate acknowledge signal to electron key and need certain hour acknowledge signal is sent to vehicle.Its result, from electron key receive require signal to play to perform car door locking or time till unlocking elongated.
Summary of the invention
The present invention proposes in view of above-mentioned problem, its object is to, and provides a kind of from receiving the electron key system requiring signal to play to send the time required till acknowledge signal short.
In order to solve above-mentioned problem, electron key system involved in the present invention, possess: host computer control portion, it is mounted on communication host, when comprising the requirement signal of operand data to the communication zone transmission preset and receive the acknowledge signal requiring signal for this, when the certification data judging to comprise in this acknowledge signal are in the right season, make the acting device start be mounted on described communication host, or, allow the acting device start be mounted on described communication host; Electron key control part, it is mounted on the electron key that carried by user, require that the described operand data comprised in signal carry out computing to from the described of described communication host, send the described acknowledge signal result of this computing be included as described certification data; And receive data volume measurement unit, it is mounted in described electron key, require that the reception data volume of signal measures to described, when be judged as by described reception data volume measurement unit described require that the reception of the described operand data comprised in signal completes time, described electron key control part starts the computing of operand data.
In the past, electron key control part carried out the computing of the operand data that this requires to comprise in signal after completing the reception requiring signal.Therefore, from receive and require that signal needs certain hour till having played the transmission of acknowledge signal.Its result, to carry out communicating the acting device start playing and make to be mounted on communication host or allow its start to expend time at communication host and electron key.For this point, by the structure of the invention described above, in the receiving course requiring signal, start the computing of operand data.Thus, the beginning being included in the computing of the data required in signal shifts to an earlier date compared in the past all, and correspondingly, the end of computing is also compared to shifting to an earlier date to some extent in the past.Therefore, from receive the time shorten required signal to play to comprise till the transmission of the acknowledge signal of operation result.Therefore, communicate between communication host with electron key and play the acting device start making to be mounted on communication host or the time shorten allowed till its start.
In the above-described configuration, described electron key has progress measurement unit, the computing progress of this progress measurement unit to the operand data in described electron key control part measures, when being judged as that the progress amount detected by described progress measurement unit reaches threshold value, described electron key control part starts to send described acknowledge signal, this threshold value is configured to, even if start to send the data beyond the certification data in described acknowledge signal, described computing also can complete in the process of transmitting of these data.
According to this structure, even if start to send acknowledge signal in calculating process, also computing can be completed in the process of transmitting of this acknowledge signal.Therefore, it is possible to send followed by the data in sending the acknowledge signal comprising operation result.Thus, from receive the time shorten requiring signal to the transmission completing acknowledge signal.
In the above-described configuration, described communication host is vehicle, and the acting device be mounted on this vehicle carries out the door locking apparatus of locking or unlocking of car door and the drive source of vehicle traveling.
According to this structure, communicate between vehicle with electron key play door locking apparatus mounted on a vehicle and vehicle traveling drive source can time shorten till start.
In the above-described configuration, describedly require that signal comprises the intrinsic certification data of described communication host, when judging that the reception of the described certification data requiring to comprise in signal completes by described reception data volume measurement unit, described electron key control part starts the legitimacy judging these certification data.
According to this structure, when the finishing receiving of the data needed for the judgement of legitimacy, start the judgement of legitimacy.Thus, compared with starting to judge the situation of legitimacy after the reception completing the total data requiring signal, from receive and require that signal has played the time shorten till the transmission of acknowledge signal.
According to the present invention, can provide a kind of and require signal to play to send from receiving the electron key system that the time till acknowledge signal is short.
Accompanying drawing explanation
Fig. 1 is the block diagram of the Sketch of the electron key system representing present embodiment.
Fig. 2 is the diagram of circuit of the treatment step representing the electron key control part 11 received when requiring signal.
Fig. 3 is the time chart on the opportunity representing reception situation when requiring signal that receives and the calculation process in electron key control part 11 and transmission acknowledge signal.
Fig. 4 is the time chart on the opportunity representing reception situation when requiring signal that receives in existing electron key system and the calculation process in electron key control part 11 and send acknowledge signal.
Description of reference numerals
B1 ... 1st reference bit number, B2 ... 2nd reference bit number, B3 ... 3rd reference bit number, Bx ... receive bit number, Es ... predetermined progress ratio, Ex ... progress ratio, 1 ... electron key system, 2 ... vehicle, 10 ... electron key, 11 ... electron key control part, 11a ... bit number measurement unit, 11b ... progress measurement unit, 13 ... UHF sending part, 14 ... LF acceptance division, 20 ... vehicle-mounted machine, 21 ... vehicle-mounted control portion, 23 ... UHF acceptance division, 24 ... LF sending part, 32 ... door handle sensor, 33 ... motor switch, 34 ... door locking apparatus, 35 ... engine control unit.
Detailed description of the invention
Below, with reference to Fig. 1 ~ Fig. 3, illustrate and will relate to a specific embodiment of electron key system of the present invention.
As shown in Figure 1, electron key system 1 possesses: the electron key 10 held by the driver of vehicle 2; With the vehicle-mounted machine 20 arranged on car 2.Vehicle 2 as communication host is set up as condition with the radio communication of mutually carrying out between electron key 10, performs locking or unlocking and the startup of driving engine of door lock, or allows locking or unlocking and the startup of driving engine of door lock.
< electron key >
Electron key 10 has radio communication function, by mutually carrying out radio communication between vehicle-mounted machine 20, controls various mobile unit.Electron key 10 possesses: electron key control part 11, is made up of computer unit, and computer unit is made up of CPU, ROM, RAM etc.; LF acceptance division 14, is electrically connected with this electron key control part 11, receive LF (low frequency, low frequency) with requirement signal; And UHF sending part 13, send UHF (Ultra High Frequency, superhigh frequency) with acknowledge signal.In this example, send from vehicle-mounted machine 20 and require signal, require signal in response to this, send acknowledge signal from electron key 10.These require the information comprised respectively in signal and acknowledge signal for mutually carrying out certification between vehicle-mounted machine 20 and electron key 10.Such as, require that signal comprises the random data as operand data, in acknowledge signal, comprise the operation result of the random data as certification data.
When LF acceptance division 14 receives the requirement signal of the LF band sent from vehicle-mounted machine 20, this is required that signal receiving is impulse singla by LF acceptance division 14, and the restituted signal after demodulation is outputted to electron key control part 11.
The information for carrying out mutual certification between vehicle-mounted machine 20 is stored in electron key 10.In addition, bit number measurement unit 11a and the progress measurement unit 11b as receiving data volume measurement unit is provided with in electron key control part 11, the bit number of bit number measurement unit 11a to the requirement signal received measures, and the progress of progress measurement unit 11b to the crypto-operation of the random data generated needed for acknowledge signal measures.
Electron key control part 11 identify receive require signal time, read the various data that this requires to comprise in signal.Further, electron key control part 11 has been judged whether the reception of random data by the measurement result of bit number measurement unit 11a.If complete reception, then start the crypto-operation of random data.As shown in Figure 3, in electron key control part 11, the certain period after completing random data reception, require that the reception of signal (remainder) and crypto-operation walk abreast and carry out.In addition, in electron key control part 11, judge the progress of crypto-operation compared to the benchmark preset according to the measurement result of progress measurement unit 11b and whether get along with.When the progress of crypto-operation advances compared to benchmark, the generation that electron key control part 11 starts to carry out acknowledge signal and the acknowledge signal that generates are to the output of UHF sending part 13.And the acknowledge signal that UHF is with is write in reply to vehicle 2 side by UHF sending part 13.That is, in electron key control part 11, the generation of acknowledge signal and the crypto-operation of transmission and random data walk abreast and carry out.In addition, as shown in Figure 3, acknowledge signal is made up of data D3, operation result, this 3 part of data D4.The information etc. for carrying out mutual certification between electron key 10 and vehicle-mounted machine 20 is included in data D3 and data D4.
< vehicle-mounted machine >
Vehicle-mounted machine 20 is configured to possess the computer unit be made up of CPU, ROM, RAM etc.As shown in Figure 1, vehicle-mounted machine 20 possesses: vehicle-mounted control portion 21, controls various on-vehicle machines; LF sending part 24, is electrically connected with this vehicle-mounted control portion 21, sends the requirement signal of LF band; And UHF acceptance division 23, receive the acknowledge signal of UHF band.
And, as shown in Figure 1, be electrically connected with door handle sensor 32 and door locking apparatus 34 as in the vehicle-mounted control portion 21 in host computer control portion, door handle sensor 32 is arranged on Door Handle, detect user and have this Door Handle of no touch, car door is locked or is unlocked by door locking apparatus 34 automatically.In addition, vehicle-mounted control portion 21 is electrically connected with motor switch 33 and engine control unit 35, and motor switch 33 is operated when start the engine, and the startup that engine control unit 35 carries out the driving engine of vehicle 2 controls.These door locking apparatus 34 and engine control unit 35 form acting device.Door handle sensor 32 exports the electric signal representing that grip handle is touched to vehicle-mounted control portion 21, motor switch 33 exports to vehicle-mounted control portion 21 and represents that motor switch is by the electric signal operated.
Store in vehicle-mounted machine 20 for determining the information of the electron key 10 corresponding with self and the information for generating random data.Vehicle-mounted control portion 21 utilizes these information to generate the requirement signal comprising random data, and when receiving the acknowledge signal requiring signal for this, judges that whether this acknowledge signal is the acknowledge signal from the electron key 10 corresponding with self.In addition, as shown in Figure 3, require that signal is made up of data D1, random data, this 3 part of data D2.Include in data D1 and data D2 for carrying out the information etc. verified between vehicle-mounted machine 20 and electron key 10.
When user will ride etc., be at vehicle 2 and stop and under locking state, the scheduled communication region that preset of vehicle-mounted control portion 21 from LF sending part 24 to vehicle outside sends and require signal.When UHF acceptance division 23 receives the acknowledge signal for above-mentioned requirements signal from electron key 10, acknowledge signal is demodulated into impulse singla, the restituted signal after demodulation is exported to vehicle-mounted control portion 21.
When have input the restituted signal of acknowledge signal from UHF acceptance division 23, vehicle-mounted control portion 21 reads the reception data comprised in this restituted signal.And the operation result of the random data that vehicle-mounted control portion 21 uses oneself to generate and data D1, D2, carry out car and verify outward, this car verifies the legitimacy referring to the data (operation result, data D3, D4) judging to comprise in acknowledge signal outward.When this car verifies establishment outward, vehicle-mounted control portion 21 makes door handle sensor 32 start.In this condition, when vehicle-mounted control portion 21 detects the operation of user by door handle sensor 32, vehicle-mounted control portion 21 makes door locking apparatus 34 work.
In addition, LF sending part 24 sends towards the presumptive area that car indoor preset and requires signal.Be equipped under the not shown state stopped as the driving engine of drive source on vehicle 2, when under the state verifying establishment in the car requiring signal to be opportunity with this, motor switch 33 has been carried out operation, vehicle-mounted control portion 21 has made engine operation by engine control unit 35.
The summary > of the mutual radio communication of <
Then, the summary of the mutual radio communication of carrying out between vehicle-mounted control portion 21 and electron key control part 11 is described.At this, driving engine is in halted state and car door is locked.
Vehicle-mounted control portion 21 intermittently sends to the predetermined communication zone being set in vehicle-surroundings and requires signal.When electron key 10 enters into this communication zone, receive require the electron key control part 11 of signal to judge to comprise in this signal data D1, D2 legitimacy, and carry out crypto-operation, be judged as that data D1, D2 are in the right season, sending the acknowledge signal comprising crypto-operation result.Now, electron key control part 11, while execution verification and crypto-operation, generates acknowledge signal, by UHF sending part 13, acknowledge signal is sent to vehicle 2.In addition, for the data processing of requirement signal in electron key control part 11 and the generation of the crypto-operation of random data and acknowledge signal and will describe later the opportunity of transmission processing.
When receiving acknowledge signal by UHF acceptance division 23 from electron key 10, the data comprised in 21 pairs, vehicle-mounted control portion acknowledge signal and the legitimacy of operation result judge.Vehicle-mounted control portion 21 is being judged to be that data are in the right season, by door locking apparatus 34, by the door unlock of locking.
The process action > of < electron key
Then, with reference to the diagram of circuit shown in Fig. 2, to the data processing of requirement signal in electron key control part 11 and the generation of the crypto-operation of random data and acknowledge signal be described the opportunity of transmission processing.Process shown in this diagram of circuit detects with electron key control part 11 and requires that the reception of signal starts to perform for triggering.In addition, this diagram of circuit performs according to the program be stored in advance in electron key control part 11.
As shown in Figure 2, by bit number measurement unit 11a, electron key control part 11 judges whether the reception bit number Bx of received requirement signal reaches the 1st reference bit number B1 (step S1), the 1st reference bit number B1 is set to judge the judgment standard whether reception of data D1 completes.When being judged as "No" in step sl, that is, when receiving bit number Bx and not reaching the 1st reference bit number B1, this step is repeatedly performed, until receive bit number Bx to reach the 1st reference bit number B1.When being judged as "Yes" in step sl, that is, when receiving bit number Bx and reaching the 1st reference bit number B 1, electron key control part 11 judges the data D1 whether corresponding with the data of self (step S2) received.In addition, this verification with require that connecing of signal receives that And is capable to carry out.
When being judged as "Yes" in step s 2, that is, when the data D1 received is the data corresponding with self, whether the reception bit number Bx of the requirement signal received by electron key control part 11 is judged by bit number measurement unit 11a reaches the 2nd reference bit number B2 (step S3), and the 2nd reference bit number B2 is set to judge the judgment standard whether reception of random data completes.When being judged as "No" in step s3, that is, when receiving bit number Bx and not reaching the 2nd reference bit number B2, this step is repeatedly performed, until receive bit number Bx to reach the 2nd reference bit number B2.
When being judged as "Yes" in step s3, that is, when receiving bit number Bx and reaching the 2nd reference bit number B2, start to carry out crypto-operation (step S4) to the random data received.In addition, this crypto-operation with require that connecing of signal receives that And is capable to carry out.Then, whether the reception bit number Bx of the requirement signal received by electron key control part 11 is judged by bit number measurement unit 11a reaches the 3rd reference bit number B3 (step S5), and the 3rd reference bit number is set to judgement and requires the judgment standard whether reception of signal (data D2) completes.When being judged as "No" in step s 5, that is, when receiving bit number Bx and not reaching the 3rd reference bit number B3, this step is repeatedly performed, until receive bit number Bx to reach the 3rd reference bit number B3.In addition, require that the 1st ~ 3rd reference bit number B1, B2, B3 of the judgment standard whether reception of each data in signal completes is pre-stored in electron key control part 11 as judgement.
When being judged as "Yes" in step s 5, that is, when receiving bit number Bx and reaching the 3rd reference bit number B3, electron key control part 11 judges by progress measurement unit 11b whether the progress ratio Ex of the crypto-operation of random data reaches progress ratio Es (step S6), and progress ratio Es quilt is as judging whether it is that the beginning generation of acknowledge signal and the judgment standard on the opportunity of transmission set.As the progress ratio Es of threshold value be redefined for require signal finish receiving and the transmission of acknowledge signal start between time shorten.In addition, progress ratio Es is pre-stored in electron key control part 11, with percentage setting (such as 50%).Progress ratio Es is set to be less than the value of 100%, even if to start the part (in this case data D3) sending acknowledge signal, in transmission, or when being sent completely, complete the crypto-operation of random data.That is, immediately this operation result to be included in the viewpoint setting in acknowledge signal at the end of crypto-operation.In this example, progress ratio Es is set to 50%, to complete crypto-operation when the transmission completing data D3.When being judged as "No" in step s 6, that is, when the progress ratio Ex of the crypto-operation of random data does not reach predetermined progress ratio Es, repeatedly this step S6 is carried out, until progress ratio Ex reaches predetermined progress ratio Es.
When being judged as "Yes" in step s 6, that is, when progress ratio Ex reaches predetermined progress ratio Es, the legitimacy (step S7) of the data D2 comprised in the acknowledge signal received is judged.When being judged as "Yes" in the step s 7, that is, when be judged as the data D2 of acknowledge signal just when, electron key control part 11 starts to set (step S8) the data D3 of acknowledge signal.Then, the part of the data D3 in the acknowledge signal set in the step s 7 is sent to vehicle 2 (step S9) by electron key control part 11.In addition, the crypto-operation of these step S7 ~ S9 and random data is parallel carries out.
Then, electron key control part 11 judges whether the crypto-operation of random data completes, namely judges whether progress ratio Ex is 100% (step S10).When being judged as "No" in step slo, that is, when the crypto-operation of random data does not complete, repeatedly this step S10 is carried out, until progress ratio Ex reaches 100%.
When being judged as "Yes" in step slo, that is, judging in the completed situation of the crypto-operation of random data, the operation result of random data is set as a part (step S11) for the acknowledge signal then sending to vehicle 2 by electron key control part 11.And electron key control part 11 then sends the part (step S12) of the operation result of acknowledge signal after data D3.In this example, progress ratio Es is configured to, and completes crypto-operation (in this case 50%) when the transmission completing data D3.Therefore, after completing crypto-operation, operation result can be sent immediately.Then, electron key control part 11 is setting data D4 (step S13) in the acknowledge signal sent to vehicle 2, the data D4 of this setting is sent (step S14) as the part of the acknowledge signal then sent after operation result, terminates this series of process.
In addition, when being judged as "No" in step s 2, that is, when the data D1 of the acknowledge signal received is not the data corresponding with self, and when being judged as "No" in the step s 7, that is, when could not judge the data D2 of acknowledge signal just when, process in continuation is stopped (step S15), terminates this series of process.
As above detailed description in detail, according to the present embodiment, effect shown below can be obtained.
(1) electron key control part 11 carries out the crypto-operation of the random data that this requires to comprise in signal in the receiving course requiring signal.Thus, with in the past such complete require Signal reception after start the crypto-operation of random data situation compared with, the beginning of the crypto-operation of random data shifts to an earlier date to some extent.Therefore, the time shorten to the crypto-operation of random data completes.Therefore, compared with the past, receive from electron key control part 11 and require that signal plays the time shorten sent till acknowledge signal, so carry out between electron key 10 and vehicle 2 radio communication play door locking apparatus 34 or engine control unit 35 can time shorten till start.
(2) on electron key control part 11, be provided with the bit number measurement unit 11a that can measure the bit number of the requirement signal received.And according to the bit number received, electron key control part 11 can easily judge whether the reception of random data completes.
(3) on electron key control part 11, be provided with the progress measurement unit 11b that the progress of the crypto-operation of random data is measured.So, electron key control part 11 is when the progress of the crypto-operation being judged random data by progress measurement unit 11b reaches the progress ratio Es being configured to predetermined threshold, start to send acknowledge signal, the predetermined threshold of this progress ratio Es is configured to, even if start the part sending acknowledge signal, in this transmission, also complete the crypto-operation of random data.Thus, the crypto-operation of random data completes in the process of transmitting of a part for acknowledge signal.Therefore, it is possible to followed by the data in transmission, the part of operation result as acknowledge signal is sent.Thus, compared with the past, can shorten from receive and require that signal plays the time till being sent completely of acknowledge signal.
In addition, above-mentioned embodiment can change in the following ways.
In the above-described embodiment, for the reception situation requiring signal, electron key control part 11 by bit number measurement unit 11a the bit number that measures judge whether the reception of random data etc. completes, but measurement value in addition also can be adopted to judge whether the reception of random data etc. completes.Such as, bit number measurement unit 11a possesses requiring the timing units such as the counting machine that the time of reception of signal measures and forms.In this case, electron key control part 11 adopt the time of reception measured by measuring means to judge whether the reception of random data etc. completes.Adopt in this way, also can obtain the effect identical with above-mentioned embodiment.
In the above-described embodiment, electron key control part 11 adopts the value of the progress status of the crypto-operation of the random data measured by progress measurement unit 11b to judge the opportunity starting to send acknowledge signal, but measurement value in addition also can be adopted to judge to start to send the opportunity of acknowledge signal.Such as, progress measurement unit 11b also can measure operation time.In this case, electron key control part 11 adopts judge to start to send the opportunity of acknowledge signal operation time measured.Adopt in this way, also can obtain the effect identical with above-mentioned embodiment.
In the above-described embodiment, describe the situation in the electron key system mutually carrying out radio communication between electron key 10 and vehicle 2, but the object that electron key 10 carries out mutual radio communication is not limited to vehicle 2.Such as, can be the electron key system mutually carrying out radio communication between electron key 10 and house.In this case, external door arranges door handle sensor and door locking apparatus.Then, when mutual radio communication is set up, when contact being detected by door handle sensor, door locking apparatus start.In the case of this kind of construction, compared with the past, also can shorten from door handle sensor by operating communication between house and electron key 10 play time till door locking apparatus start.
In the above-described embodiment, electron key 10 (electron key control part 11) carries out the situation of crypto-operation and data check immediately when receiving and require signal all the time, but also can adopt following manner.That is, in order to suppress power consumption, electron key has readiness for action, in the standby state, can only receive radiowave, not carry out data processing etc.In this electron key, during from vehicle receiver to cranking signal, just transfer to the starting state that can carry out data processing etc., and send the acknowledgment signal representing and started.Afterwards, identical with above-mentioned embodiment, between electron key and vehicle, carry out the communication for mutual certification.When the present invention is applicable to this there is the electron key of readiness for action and starting state, before the requirement signal that can carry out between vehicle-mounted control portion 21 in the above-described embodiment and electron key control part 11 and the mutual radio communication of acknowledge signal, carry out the mutual radio communication of cranking signal and acknowledgment signal.Adopt in this way, above-mentioned embodiment also can be applicable to the electron key with readiness for action and starting state.
In the above-described embodiment, when receive bit number Bx reach time that time of the 3rd reference bit number B3 and progress ratio Ex reach predetermined progress ratio Es have overlapping, also can omit the process of the step S6 shown in diagram of circuit of Fig. 2.Adopt in this way, the effect identical with above-mentioned embodiment can be obtained.
In the above-described embodiment, completed this condition of crypto-operation before the transmission completing the data D3 in acknowledge signal under, progress ratio Es can in the scope of 0 < Es < 100% free setting.As long as set like this, just can start to send acknowledge signal in the crypto-operation process of electron key control part 11, so the effect identical with the effect of (3) of above-mentioned embodiment can be obtained.
In the above-described embodiment, whether the requirement signal (data D1) carried out in step s 2 is that the judgement of the signal corresponding with self also can be carried out together with the judgement of the requirement signal (data D2) to carry out in the step s 7.Adopt in this way, also can obtain the effect identical with above-mentioned embodiment.
In the above-described embodiment, although require that the judgement (step S7) of the signal whether signal (data D2) is corresponding with self carries out between setting acknowledge signal (data D3), but be not limited thereto the opportunity of this judgement, also can before sending the data D4 in acknowledge signal.That is, as long as carry out on the opportunity followed by any one step among step S6 ~ S12.Adopt in this way, the effect identical with above-mentioned embodiment can be obtained.
In the above-described embodiment, as long as bit number measurement unit 11a and progress measurement unit 11b is arranged on electron key 10, be not necessarily arranged on electron key control part 11.
In the above-described embodiment, being arranged on Door Handle and detecting user has the door handle sensor 32 of this Door Handle of no touch can be the switch detecting user operation.
Claims (3)
1. an electron key system, possesses:
Host computer control portion, it is mounted on communication host, when comprising the requirement signal of operand data to the communication zone transmission preset and receive the acknowledge signal requiring signal for this, when the certification data judging to comprise in this acknowledge signal are in the right season, make the acting device start be mounted on described communication host, or, allow the acting device start be mounted on described communication host;
Electron key control part, it is mounted on the electron key that carried by user, require that the described operand data comprised in signal carry out computing to from the described of described communication host, send the described acknowledge signal result of this computing be included as described certification data;
Receive data volume measurement unit, it is mounted in described electron key, requires that the reception data volume of signal measures to described; And
Progress measurement unit, it is mounted in described electron key, measures the computing progress of the operand data in described electron key control part,
When be judged as by described reception data volume measurement unit described require that the reception of the described operand data comprised in signal completes time, described electron key control part starts the computing of operand data, and when being judged as that the progress amount detected by described progress measurement unit reaches threshold value, described electron key control part starts to send described acknowledge signal, this threshold value is configured to, even if start to send the data beyond the certification data in described acknowledge signal, described computing also can complete in the process of transmitting of these data.
2. electron key system according to claim 1, wherein,
Described communication host is vehicle, and the acting device be mounted on this vehicle carries out the door locking apparatus of locking or unlocking of car door and the drive source of vehicle traveling.
3. electron key system according to claim 1, wherein,
Describedly require that signal comprises the intrinsic certification data of described communication host, when judging that the reception of the described certification data requiring to comprise in signal completes by described reception data volume measurement unit, described electron key control part starts the legitimacy judging these certification data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-049055 | 2011-03-07 | ||
| JP2011049055A JP5438051B2 (en) | 2011-03-07 | 2011-03-07 | Electronic key system |
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| Publication Number | Publication Date |
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| CN102673522A CN102673522A (en) | 2012-09-19 |
| CN102673522B true CN102673522B (en) | 2015-02-04 |
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| CN201210066221.XA Active CN102673522B (en) | 2011-03-07 | 2012-03-05 | Electronic key system |
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| JP (1) | JP5438051B2 (en) |
| CN (1) | CN102673522B (en) |
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| DE19802300B4 (en) * | 1997-01-30 | 2008-02-07 | Marquardt Gmbh | Case for electronic key |
| DE19952247C1 (en) * | 1999-10-29 | 2001-04-05 | Valeo Gmbh & Co Schliessyst Kg | Electronic flat key for remote operation of lock or central locking system has electronic circuit contained between cooperating half shells of grip part housing and enclosed by non-conductive frame |
| FR2828967B1 (en) * | 2001-08-23 | 2003-10-31 | Valeo Electronique | METHOD FOR AUTHORIZING THE UNLOCKING AND / OR STARTING OF A MOTOR VEHICLE AND ASSOCIATED DEVICE |
| US6786332B1 (en) * | 2002-02-12 | 2004-09-07 | Ralph J. Patrick | Protective holder for a remote control |
| DE10315202A1 (en) * | 2003-04-03 | 2004-10-14 | Leopold Kostal Gmbh & Co. Kg | Remote control for operating a locking device of a motor vehicle |
| EP1966454B1 (en) * | 2005-12-23 | 2013-01-09 | Huf Hülsbeck & Fürst GmbH & Co. KG | Electronic key for vehicles |
| JP5502284B2 (en) * | 2008-03-25 | 2014-05-28 | 株式会社東海理化電機製作所 | Electronic key system |
| JP4973785B2 (en) * | 2008-11-27 | 2012-07-11 | トヨタ自動車株式会社 | Door courtesy switch abnormality detection device and method |
| JP5173927B2 (en) * | 2009-05-13 | 2013-04-03 | 株式会社東海理化電機製作所 | Electronic key communication enable / disable setting system and communication enable / disable setting method |
-
2011
- 2011-03-07 JP JP2011049055A patent/JP5438051B2/en not_active Expired - Fee Related
-
2012
- 2012-03-05 CN CN201210066221.XA patent/CN102673522B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10124763B2 (en) | 2014-05-13 | 2018-11-13 | Alps Electric Co., Ltd. | Keyless entry apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102673522A (en) | 2012-09-19 |
| JP2012184604A (en) | 2012-09-27 |
| JP5438051B2 (en) | 2014-03-12 |
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