CN103174336B - The electron key system of vehicle - Google Patents
The electron key system of vehicle Download PDFInfo
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- CN103174336B CN103174336B CN201210568287.9A CN201210568287A CN103174336B CN 103174336 B CN103174336 B CN 103174336B CN 201210568287 A CN201210568287 A CN 201210568287A CN 103174336 B CN103174336 B CN 103174336B
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Abstract
The invention provides a kind of electron key system of vehicle, even if this system is under generation has the environment of spike noise, also can suppress malfunction.In electron key system, be positioned at the communication zone of mobile unit with portable equipment for condition, between mobile unit and portable equipment, carry out radio communication.Then, portable equipment measures its RSSI value when receiving the wake-up signal sent from mobile unit, and the response signal comprising this measurement result is sent to mobile unit.Mobile unit judges the position of portable equipment in communication zone according to RSSI value contained in response signal, and carries out the wagon control corresponding to this judged result.At this, portable equipment carries out 3 times to the RSSI of wake-up signal and measures.In addition, mobile unit judges the position of portable equipment according to the average removing the maximum measurement result of intensity and remaining 2 RSSI value from 3 measurement results of the RSSI value determined by portable equipment.
Description
Technical field
The present invention relates to a kind of electron key system being carried out the various controls of vehicle by the radio communication between vehicle and electron key.
Background technology
The door handle that the user that what is called carries portable equipment (electron key) touches vehicle carrys out unlocking doors, and the electron key system that user's push tail-off be arranged on instrument board (dashboard) carrys out ato unit is well-known.In the past, as such electron key system, there will be a known the system that such as patent document 1 is recorded.
In the electron key system that this patent document 1 is recorded, be provided with multiple transmitter, these transmitters are used for wireless signal to be sent to respectively to be arranged on multiple communication zones that car is outdoor and car is indoor.Then, user one touches the door handle of vehicle, just sends the 1st wireless signal respectively from each transmitter.Then, the portable equipment of these the 1st wireless signals one entrained by user receives, portable equipment just measures the value of the received signal strength (RSSI) of the 1st wireless signal sent out from each transmitter respectively, and sends the 2nd wireless signal of measurement result and the cognizance code of self comprising respective RSSI value.Then, the 2nd wireless signal sent out from portable equipment is received by mobile unit via the receiver be equipped on vehicle.Mobile unit one receives the 2nd wireless signal by this way, just to the cognizance code of portable equipment contained in the 2nd wireless signal be interiorly located at cognizance code contained in the memory of mobile unit and verify, carries out certification thus to portable equipment.In addition, the position of portable equipment is judged according to each RSSI value contained in the 2nd wireless signal.Then, when being judged as the certification establishment of portable equipment and portable equipment is positioned at the periphery of car door, by door unlock.
Based on such formation, due to the position of portable equipment can be judged accurately, so (in other words, to the position of user corresponding) wagon control corresponding to the position of portable equipment more suitably can be carried out.Therefore, it is possible to improve the reliability of electron key system.
Patent document 1: Japanese Unexamined Patent Publication 2006-348497 publication
But, in the electron key system of such vehicle, if be mixed into noisy words in the 1st wireless signal sent out from the transmitter of vehicle, the RSSI value of the 1st wireless signal is not measured with regard to there will be portable equipment, and to the problem that the RSSI value of noise measures.In addition, as the noise be mixed in the 1st wireless signal, generation time that spark plug (sparkplug) such as mounted on a vehicle or wiper drive motor etc. send when it drives extremely short and the noise that intensity is large, so-called spike noise (spikenoise) etc. can be enumerated.Then, if because the RSSI value of portable equipment to this spike noise measures, the RSSI value of spike noise will be comprised in from the 2nd wireless signal that portable equipment sends out, so mobile unit can be caused to judge according to the position of the RSSI value of spike noise to portable equipment.Due in this case, be difficult to suitably judge the position of portable equipment, so be easy to bring impact to the action of the electron key system of vehicle, such as, cannot carry out the suitable wagon control etc. corresponding to the position of portable equipment.
Summary of the invention
The present invention proposes for above-mentioned situation just, its object is to the electron key system providing a kind of vehicle, even if this electron key system is under generation has the environment of spike noise, also can suppress malfunction.
In order to solve above-mentioned problem, the 1st aspect of the present invention provides a kind of electron key system of vehicle.The electron key system of this vehicle, the communication zone of mobile unit mounted on a vehicle is positioned at for condition with portable equipment, radio communication is carried out between described mobile unit and described portable equipment, described portable equipment measures the received signal strength of the 1st wireless signal when receiving the 1st wireless signal sent from described mobile unit, and the 2nd wireless signal comprising this measurement result is sent to described mobile unit, described mobile unit judges the position of described portable equipment in described communication zone according to the measurement result of described received signal strength contained in described 2nd wireless signal, and carry out the corresponding wagon control of judged result therewith, the feature of the electron key system of described vehicle is, the received signal strength of described portable equipment to described 1st wireless signal repeatedly measures, described mobile unit is according to removing the measurement result of predetermined number from the maximum measurement result of intensity and remaining measurement result from multiple measurement results of the received signal strength measured by described portable equipment, judge the position of described portable equipment.
Because spike noise is generally the noise of single-shot, so be subject to the sub-fraction for whole wireless signal of this influence of noise.Therefore, as constituted described above, if repeatedly measured by the received signal strength of portable equipment to the 1st wireless signal sent out from mobile unit, even if be mixed into spike noise in the 1st wireless signal, multiple measurement result also seldom all can be subject to the impact of spike noise, and any one measurement result usually in these measurement results can be subject to the impact of spike noise.So, in mobile unit, because according to the measurement result removing predetermined number from the maximum measurement result of intensity from these multiple measurement results, remaining measurement result judges the position of portable equipment, so can according to affecting the position that less measurement result judges portable equipment by spike noise.Thus, owing to judging the position of portable equipment more accurately, so the malfunction of electron key system can be suppressed.
2nd aspect of the present invention, in the electron key system of the vehicle described in the 1st, the judgement of the position of described portable equipment, according to removing the measurement result of predetermined number from the maximum measurement result of intensity and the average of remaining measurement result carries out from described multiple measurement result.
Based on this formation, if obtain the average of the measurement result of received signal strength, and judge the position of portable equipment according to this average, just can suppress the impact brought because of the deviation of the measurement result of received signal strength, and can judge the position of portable equipment.Thus, owing to can more judge the position of high accuracy to portable equipment, so the malfunction of electron key system more positively can be suppressed.
3rd aspect of the present invention, in the electron key system of the vehicle in the 1st or described in the 2nd, described predetermined number is set as 1.
Because spike noise is the noise of single-shot, so of mostly being in multiple measurement results of the received signal strength determined by portable equipment is subject to the impact of noise.Therefore, as constituted described above, if remaining measurement result judges the position of portable equipment according to the measurement result that only removing intensity is maximum from multiple measurement results of the received signal strength determined by portable equipment, just can suppress the impact of spike noise, and the position of portable equipment can be judged.So, if use only by the method for a removing in multiple measurement results of being determined by portable equipment, just the mensuration number of times of intensity to received signal can be set as left and right for several times, so the time of mensuration needed for received signal strength can not be long.Thereby, it is possible to do one's utmost to shorten the call duration time between portable equipment and mobile unit.
4th aspect of the present invention, in the electron key system of the vehicle in the 1st or described in the 2nd, described portable equipment is when having carried out repeatedly measuring to the received signal strength of described 1st wireless signal, by the measurement result that removes predetermined number from the maximum measurement result of intensity from described multiple measurement result and remaining measurement result is included in described 2nd wireless signal, and send described 2nd wireless signal.
Based on this formation, if carried out removing from multiple measurement results of received signal strength the process of the measurement result of predetermined number from the maximum measurement result of intensity by portable equipment side, with undertaken by mobile unit side compared with the situation of same process, just can alleviating the processing load of mobile unit side.
5th aspect of the present invention, in the electron key system of the vehicle in the 1st or described in the 2nd, described mobile unit has described 1st wireless signal is sent to the outer periphery of the driver's seat car door of described vehicle and the 1st transmitter of car indoor, the outer periphery of the co-pilot seat car door of described vehicle and the 2nd transmitter of car indoor is sent to by described 1st wireless signal, described mobile unit is according to the received signal strength determined by described portable equipment when have sent described 1st wireless signal from described 1st transmitter, and the both sides of the received signal strength determined by described portable equipment when have sent described 1st wireless signal from described 2nd transmitter are to judge the position of described portable equipment, and carry out the corresponding wagon control of judged result therewith.
Based on this formation, the number of the transmitter be equipped on mobile unit can not only be set to 2, and the malfunction of electron key system can be suppressed.
6th aspect of the present invention, in the electron key system of the vehicle in the 1st or described in the 2nd, containing the wake-up signal for making described portable equipment start and the requirement signal requiring described portable equipment transmission authentication information in the wireless signal being sent to described portable equipment from described mobile unit, described 1st wireless signal is described wake-up signal and described of requiring in signal.
Based on this formation, due to portable equipment use from mobile unit send wake-up signal or require that signal is to carry out the mensuration of received signal strength, so the new signal for measuring received signal strength need not be sent from mobile unit to portable equipment.Thus, due to the new signal being different from wake-up signal or requiring signal of need not giving and accepting between portable equipment and mobile unit, so the call duration time between portable equipment and mobile unit can be shortened.
Based on the electron key system of vehicle of the present invention, even if producing the environment having spike noise, also can malfunction be suppressed.
Accompanying drawing explanation
Fig. 1 is block diagram, and it represents the System's composition of an embodiment of the electron key system of vehicle of the present invention.
Fig. 2 is the top view of the planar configuration representing vehicle.
Fig. 3 A is time chart, and it represents the content of the signal sent out from the 1st transmitter of mobile unit.
Fig. 3 B is time chart, and it represents the content of the signal sent out from the 2nd transmitter of mobile unit.
Fig. 3 C is time chart, and it represents the content of the signal that portable equipment sends out.
The figure of the frame structure of that Fig. 4 is the electron key system of the vehicle schematically represented from described embodiment, that the 1st transmitter of mobile unit and the 2nd transmitter send out wake-up signal.
Fig. 5 is flow chart, and it represents the order of the process measured by the RSSI value of electron key system to wake-up signal of the vehicle of described embodiment.
Fig. 6 is the figure of the form that the RSSI value of the wake-up signal of the electron key system of the vehicle schematically represented described embodiment calculates.
symbol description
A1 ... 1st communication zone, A2 ... 2nd communication zone, 1 ... portable equipment, 2 ... mobile unit, 10 ... receiver, 11 ... transmitter, 12 ... RSSI circuit, 13 ... portable equipment control part, 13a ... memory, 20 ... 1st transmitter, 21 ... 2nd transmitter, 22 ... receiver, 23 ... tail-off, 24 ... lock-up cock, 25 ... brake sensor, 26 ... touch sensor, 27 ... door latching mechanism, 28 ... engine control section, 29 ... vehicle-mounted control portion, 29a ... memory.
Detailed description of the invention
Below, with reference to Fig. 1 ~ Fig. 6, an embodiment of the electron key system of vehicle of the present invention is described.
As shown in Figure 1, in the electron key system of the vehicle of present embodiment, carry out various Control on Communication by the radio communication between the portable equipment 1 entrained by user and mobile unit 2 mounted on a vehicle.
Wherein, portable equipment 1 possesses: receiver 10, receives the wireless signal sent from mobile unit 2; And transmitter 11, send wireless signal to mobile unit 2.Receiver 10 1 receives the wireless signal sent out from mobile unit 2, just carries out reception process to described wireless signal, and this wireless signal is exported to the portable equipment control part 13 portable equipment 1 being carried out to various control.In addition, receiver 10 is provided with RSSI circuit 12, the value of this RSSI circuit 12 to the received signal strength (RSSI) of the wireless signal received detects.RSSI circuit 12 1 detects the RSSI value of wireless signal, just exports this testing result to portable equipment control part 13.Portable equipment control part 13, according to the wireless signal received via receiver 10, carries out the transmission of the wireless signal via transmitter 11.Portable equipment control part 13, when the wireless signal received via receiver 10 is wake-up signal, makes portable equipment 1 start, and will represent that the confirmation signal that portable equipment 1 has started is sent to mobile unit 2 via transmitter 11.In addition, portable equipment control part 13, when receiving wake-up signal, is detected by the RSSI value of RSSI circuit 12 to this wake-up signal, and is located in the memory 13a of portable equipment control part 13 in this testing result being stored in.Like this, in the present embodiment, be wake-up signal for measuring the 1st wireless signal of RSSI value.On the other hand, portable equipment control part 13 is when the wireless signal received via receiver 10 is requirement signal, generate and comprise the RSSI value of the wake-up signal be stored in memory 13a and the response signal of authentication information, i.e. cognizance code (ID code), and send this response signal by transmitter 11.Like this, in the present embodiment, the 2nd wireless signal comprising the measurement result of RSSI value is response signal.
Mobile unit 2 possesses the 1st transmitter 20 and the 2nd transmitter 21 that wireless signal are sent to predetermined communication zone and the receiver 22 received the wireless signal sent from portable equipment 1.
As shown in Figure 2, the 1st transmitter 20 is arranged on driver's seat car door, and the 1st communication zone A1 to the outer periphery and car indoor that are set in this driver's seat car door sends wireless signal.In addition, the 2nd transmitter 21 is arranged on co-pilot seat car door, and the 2nd communication zone A2 to the outer periphery and car indoor that are set in this co-pilot seat car door sends wireless signal.1st communication zone A1 and the 2nd communication zone A2 is set as, the region being set in car indoor is separately overlapped.Further, the receiver 22 1 shown in Fig. 1 receives the wireless signal sent out from portable equipment 1, just carries out reception process to described wireless signal, and this wireless signal is exported to the vehicle-mounted control portion 29 vehicle being carried out to various control.
In addition, the lock-up cock 24 operated when the tail-off 23 operated when mobile unit 2 possesses ato unit and locking car door, these switches are for user operation.As shown in Figure 2, tail-off 23 is push switch, is arranged on the instrument board of vehicle.Tail-off 23 1, by user's push, just will represent that the operation signal of this operation exports vehicle-mounted control portion 29 to.In addition, as shown in Figure 2, lock-up cock 24 is also push switch, is arranged on the door handle of vehicle.Lock-up cock 24 1, by user's push, just will represent that the operation signal of this operation exports vehicle-mounted control portion 29 to.
Further, as shown in Figure 1, mobile unit 2 possesses the brake sensor 25 that detects the tread-on quantity of the brake pedal of vehicle and whether touches the touch sensor 26 that door handle detects, the vehicle operating that these sensors carry out for detecting user to user.Brake sensor 25 detects user with or without operation brake pedal, and will export vehicle-mounted control portion 29 to by the corresponding signal of testing result therewith.In addition, touch sensor 26 is such as formed by electrostatic capacitance sensor, whether touches door handle and detects, and export this testing result to vehicle-mounted control portion 29 to user.
Then, vehicle-mounted control portion 29 sends wireless signal according to the output of each switch 23,24 and each sensor 25,26 from the 1st transmitter 20 and the 2nd transmitter 21, or carries out various wagon control according to the wireless signal received via receiver 22.
As shown in Figure 3A, vehicle-mounted control portion 29, when meeting any one condition in following (a1) ~ (a3), generates wake-up signal, and sends this wake-up signal by the 1st transmitter 20.
(a1) detect that this tail-off 23 has been carried out push according to the output of tail-off 23.
(a2) detect that this lock-up cock 24 has been carried out push according to the output of lock-up cock 24.
(a3) detect that user touches door handle according to the output of touch sensor 26.
At this, when portable equipment 1 is positioned at the 1st communication zone A1 illustrated in Fig. 2, as shown in Figure 3 C, due to portable equipment 1, response made to the wake-up signal received and send confirmation signal, so vehicle-mounted control portion 29 receives the confirmation signal sent out from portable equipment 1 via receiver 22.As shown in Figure 3A, vehicle-mounted control portion 29 one receives the confirmation signal by this way, just generates and requires signal, and sends this by the 1st transmitter 20 and require signal.Then, as shown in Figure 3 C, portable equipment 1 to send described require signal make response and send out response signal time, vehicle-mounted control portion 29 receives response signal via receiver 22.At this moment, vehicle-mounted control portion 29 by cognizance code contained in response signal and in being stored in the cognizance code be located in the memory 29a in vehicle-mounted control portion 29 verify, certification is carried out to portable equipment 1.Then, when cognizance code is each other consistent, be judged as that the certification of portable equipment 1 is set up.
On the other hand, containing the RSSI value of wake-up signal in the response signal received by vehicle-mounted control portion 29, the RSSI value of this wake-up signal and between the distance till the 1st transmitter 20 to portable equipment 1, there is dependency relation.Specifically, have following dependency relation: RSSI value is larger, the distance till the 1st transmitter 20 to portable equipment 1 is shorter.In the present embodiment, obtained the RSSI value of described wake-up signal and the relation of the distance till the 1st transmitter 20 to portable equipment 1 by experiment etc. in advance, and the relation of both is stored in the memory 29a in vehicle-mounted control portion 29 as mapping.Vehicle-mounted control portion 29 uses the mapping be stored in memory 29a, and according to the RSSI value of wake-up signal contained in response signal, calculates the distance till the 1st transmitter 20 to portable equipment 1.
In addition, as shown in Figure 3 B, after being sent wake-up signal by the 1st transmitter 20 and required signal, vehicle-mounted control portion 29 then sends wake-up signal by the 2nd transmitter 21.At this moment, when portable equipment 1 is positioned at the 2nd communication zone A2 illustrated in Fig. 2, as shown in Fig. 3 B, Fig. 3 C, sent by the 2nd transmitter 21 equally and require signal and send confirmation signal and response signal by portable equipment 1.Then, vehicle-mounted control portion 29, according to the RSSI value of wake-up signal contained in response signal, carries out mapping calculation to the distance till the 2nd transmitter 21 to portable equipment 1.
Then, vehicle-mounted control portion 29 according to calculate by this way, from the distance till the 1st transmitter 20 to portable equipment 1 and from the distance till the 2nd transmitter 21 to portable equipment 1, judge portable equipment 1 is arranged in which position of the outside of driver's seat car door, the outside of co-pilot seat car door and car indoor.Such as, as shown in Figure 2, when the distance till the 1st transmitter 20 to portable equipment 1 is distance d10 in Fig. 2 and is the distance d20 Fig. 2 from the distance till the 2nd transmitter 21 to portable equipment 1, can judge that portable equipment 1 is positioned at the outside of driver's seat car door.In addition, such as, when the distance till the 1st transmitter 20 to portable equipment 1 is distance d11 in Fig. 2 and is the distance d21 Fig. 2 from the distance till the 2nd transmitter 21 to portable equipment 1, can judge that portable equipment 1 is positioned at driver's seat.Like this, according to the distance till the 1st transmitter 20 to portable equipment 1 and from the distance till the 2nd transmitter 21 to portable equipment 1, the position of portable equipment 1 can be judged.In the present embodiment, obtained from the distance till the 1st transmitter 20 to portable equipment 1, from the relation between this three of position of the distance till the 2nd transmitter 21 to portable equipment 1 and portable equipment 1 by experiment etc. in advance, and the relation of this three is stored in the memory 29a in vehicle-mounted control portion 29 as mapping.Vehicle-mounted control portion 29 uses the mapping be stored in memory 29a, and judges according to the distance till the 1st transmitter 20 portable equipment 1 and the position of distance to portable equipment 1 till the 2nd transmitter 21 to portable equipment 1.
In addition, vehicle-mounted control portion 29 according to the position of the portable equipment 1 judged and which operation of whether having carried out in above-mentioned (a1) ~ (a3), judge whether to have carried out car door lock and unlock and motor startup in which operation.When tail-off 23 has been carried out push and portable equipment 1 is positioned at car indoor, vehicle-mounted control portion 29 has sent engine restart request via In-vehicle networkings such as such as CAN (ControllerAreaNetwork) to engine control section 28.Thus, on-board engine is activated.In addition, when lock-up cock 24 has been carried out push and portable equipment 1 is positioned at the outside of driver's seat car door or is positioned at the outside of co-pilot seat car door, vehicle-mounted control portion 29 has made door latching mechanism 27 drive, and locks to car door.Further, when user touches door handle and portable equipment 1 is positioned at the outside of driver's seat car door or is positioned at the outside of co-pilot seat car door, vehicle-mounted control portion 29 makes door latching mechanism 27 drive, and unlocks car door.
But, in the electron key system of such vehicle, when portable equipment 1 carry out in the wake-up signal of RSSI value mensuration, being mixed into above-mentioned spike noise time, there will be cannot suitably to the problem that the position of portable equipment 1 judges.So, in the present embodiment, in order to eliminate the impact of spike noise, 3 times being carried out to the RSSI value of wake-up signal and measures, and judging the position of portable equipment 1 according to the average removing the maximum measurement result of intensity and remaining 2 measurement results from these measurement results.Below, be described in detail.
As shown in Figure 4, the wake-up signal of present embodiment has the frame structure in the train of pulse portion comprised for measuring RSSI value, and this train of pulse portion is positioned at the latter half of office of the distance corresponding with time width Ta that to stagger from the fore-end of this wake-up signal.As shown in Figure 4, in train of pulse portion, by constant cycle Tb from its front end, become the signal level corresponding with high level 3 times.
Then, with reference to Fig. 5, the order that the RSSI value of portable equipment control part 13 to the wake-up signal be made up of this frame structure measures is described.In addition, when portable equipment control part 13 receives wake-up signal, carry out the process shown in Fig. 5.
In process as shown in Figure 5, first, by the internal timer of portable equipment control part 13 to from via receive receiver 10 wake-up signal time elapsed time of lighting measure (step S1), and the from then on Measuring Time Ta time of advent time light and undertaken 3 times by constant cycle Tb by RSSI circuit 12 pairs of RSSI value and measure (step S2).Thus, as shown in Figure 5, carry out 3 times to the RSSI value of the signal level corresponding with the high level in train of pulse portion contained in wake-up signal to measure.Then, the average removing maximum RSSI value and remaining 2 RSSI value from 3 the RSSI value rs1 ~ rs3 determined is calculated (step S3).Using the average of measurement result that calculates as the measurement result of the RSSI value of wake-up signal, generate the confirmation signal comprising the measurement result of the RSSI value of this wake-up signal, and send this confirmation signal (step S4) by transmitter 11.
Then, with reference to Fig. 6, the action case (effect) of the electron key system of present embodiment is described.
Because spike noise is the noise of single-shot, so when being mixed into spike noise in wake-up signal, be subject to the sub-fraction for whole wake-up signal of this spike noise impact.Therefore, even if be mixed into spike noise in wake-up signal, 3 places becoming the signal level corresponding with high level that also seldom there will be in train of pulse portion have all been mixed into spike noise, and as shown in Figure 6, one of them can be mixed into spike noise usually.In addition, at this, be mixed into the situation of spike noise exemplified with the 1st place (namely initial part) in 3 places becoming the signal level corresponding with high level.Then, when portable equipment 1 receives such wake-up signal, measure if undertaken 3 times by portable equipment control part 13 pairs of RSSI value, will using the RSSI value rs1 in these measurement results as exceptional value.At this moment, due in the present embodiment, by calculating the RSSI value obtaining wake-up signal, so can according to affecting the RSSI value that less measurement result obtains wake-up signal by spike noise to the average removing maximum RSSI value rs1 and remaining RSSI value rs2, rs3 from 3 measurement results of RSSI value.Therefore, it is possible to detect the RSSI value of wake-up signal accurately.Thus, due in mobile unit 2, when judging the position of portable equipment 1 according to RSSI value contained in response signal, can judge the position of portable equipment 1 more accurately, so suitably the wagon control corresponding to the position of portable equipment 1 can be carried out.Therefore, it is possible to suppress the malfunction of electron key system.
In addition, if obtain the average of RSSI value, and judge the position of portable equipment 1 according to this average, the impact that just can bring the deviation because of measurement result suppresses, and can judge the position of portable equipment 1.Thereby, it is possible to judge the position of portable equipment 1 more accurately, so the malfunction of electron key system more positively can be suppressed.
Further, if used only by the method for a removing in 3 RSSI value being measured by portable equipment 1, just the mensuration number of times of RSSI value can be set as about 3 times, so the time of mensuration needed for RSSI value can not be long.Thereby, it is possible to do one's utmost to shorten the call duration time between portable equipment 1 and mobile unit 2.
As mentioned above, based on the electron key system of the vehicle of present embodiment, following effect can be obtained.
(1) in portable equipment 1,3 times are carried out to the RSSI value of wake-up signal and measures.In addition, in portable equipment 1, the average removing the maximum RSSI value of intensity and remaining 2 RSSI value from 3 the RSSI value rs1 ~ rs3 determined is calculated, and using the RSSI value of this average as wake-up signal.On the other hand, in mobile unit 2, judge the position of portable equipment 1 according to the RSSI value of wake-up signal contained in the answer signal sent out from portable equipment 1.Thus, owing to judging the position of portable equipment 1 accurately, so the malfunction of electron key system can be suppressed.
(2) when obtaining the RSSI value of wake-up signal, only RSSI value maximum for intensity in 3 RSSI value determined by portable equipment 1 is removed.Thus, owing to the number of times that portable equipment 1 pair of RSSI value measures can be set as about 3 times, so can do one's utmost to shorten the call duration time between portable equipment 1 and mobile unit.
(3) process that the average of RSSI value calculates is undertaken by portable equipment 1.Thus, with undertaken by mobile unit 2 side compared with the situation of same process, the processing load of mobile unit 2 side can being alleviated.
(4) on vehicle, be provided with the 1st transmitter 20 and the 2nd transmitter 21.Then, judge the position of portable equipment 1 according to the RSSI value determined by portable equipment 1 when have sent wake-up signal from the 1st transmitter 20 and the both sides of RSSI value that determined by portable equipment 1 when have sent wake-up signal from the 2nd transmitter 21, and carry out wagon control according to this judged result.Thus, the number of the transmitter be equipped on vehicle can not only be set to 2, and the malfunction of electron key system can be suppressed.
(5) the train of pulse portion for measuring RSSI value is provided with in the wake-up signal sent at mobile unit 2.Thus, due to new signal for measuring received signal strength need not be sent, so the new signal being different from wake-up signal or requiring signal of need not giving and accepting between portable equipment 1 and mobile unit 2 from mobile unit 2.Therefore, it is possible to shorten the call duration time between portable equipment 1 and mobile unit 2.
In addition, above-mentioned embodiment also can be implemented according to the following mode this mode having been done to suitable change.
Although in the above-described embodiment, the 1st transmitter 20 and the 2nd transmitter 21 are separately positioned on driver's seat car door and co-pilot seat car door, but are not limited in this, the 1st transmitter 20 and the respective configuration of the 2nd transmitter 21 can suitably be changed.
Although in the above-described embodiment, the RSSI value of wake-up signal is included in response signal, but, be not limited in this, also the RSSI value of this wake-up signal can be included in confirmation signal.
In the above-described embodiment, the number of times that the RSSI value of portable equipment 1 pair of wake-up signal measures is set as 3 times, but is not limited in this, the mensuration number of times of RSSI value can suitably be changed.In addition, when the mensuration number of times of RSSI value is set as 4 times, also can be suitable for the number changing the measurement result removed when calculating mean value, such as, the RSSI value etc. obtaining wake-up signal be calculated to the average removing 2 maximum measurement results of intensity and remaining 2 measurement results from these measurement results.In a word, as long as according to removing the measurement result of predetermined number from the maximum measurement result of intensity and remaining measurement result calculates the average of RSSI value from multiple measurement results of the RSSI value determined by portable equipment 1.
In the above-described embodiment, by calculating to the average removing the maximum measurement result of intensity and remaining 2 measurement results from 3 measurement results of the RSSI value determined by portable equipment 1 RSSI value obtaining wake-up signal.In order to replace this mode, such as, also can adopt any one mode as the RSSI value of wake-up signal in remaining 2 measurement results using measurement result maximum for removing intensity.
Also all data of determined by portable equipment 13 RSSI value can be included in response signal and this response signal is sent to mobile unit 2 from portable equipment 1, and being carried out process that the average removing the maximum RSSI value of intensity and remaining 2 RSSI value from 3 RSSI value rs1 ~ rs3 is calculated by mobile unit 2 side.Based on such formation, the processing load of portable equipment 1 can be alleviated.
Although in the above-described embodiment, the RSSI value of wake-up signal is measured, but, in order to replace this mode, such as also can to requiring that the RSSI value of signal measures.In addition, also can be different from wake-up signal and require signal, sending the new signal for measuring RSSI value from the 1st transmitter 20 and the 2nd transmitter 21, and measured by the RSSI value of portable equipment 1 to this new signal.
Although in the above-described embodiment, by verifying the cognizance code be stored in portable equipment 1 and the cognizance code be stored in mobile unit 2, certification is carried out to portable equipment 1, but, in order to replace this mode, such as also can address inquires to code by giving and accepting between portable equipment 1 and mobile unit 2 and certification is carried out to portable equipment 1, namely by the mode of challenge response certification, certification be carried out to portable equipment 1.
Although in the above-described embodiment, the electron key system of vehicle of the present invention is applied to carry out locking of car door according to the position of portable equipment 1 and unlock and motor startup electron key system in, but, in order to replace this mode, such as, also can be applied to and send in some electron key system of reporting to the police according to the position of portable equipment 1.In a word, as long as carry out the electron key system of the vehicle of predetermined wagon control according to the position of portable equipment 1, just electron key system of the present invention can be suitable for.
In the above-described embodiment, the electron key system of vehicle of the present invention is applied to by judging in the electron key system of the position of portable equipment 1 from mounted on a vehicle 2 transmitters transmission wireless signals.In order to replace this mode, also can be applied in following electron key system, such as by sending from mounted on a vehicle 1 transmitter the electron key system that wireless signal judges the position of portable equipment 1, or by sending from the transmitter of more than mounted on a vehicle 3 electron key system that wireless signal judges the position of portable equipment 1.In a word, as long as measured by the RSSI value of portable equipment 1 to the wireless signal sent out from mobile unit 2, and the position of portable equipment 1 is judged according to this measurement result, carry out the electron key system of the vehicle of wagon control further according to this measurement result, just can be suitable for electron key system of the present invention.
Claims (6)
1. the electron key system of a vehicle, the communication zone of mobile unit mounted on a vehicle is positioned at for condition with portable equipment, radio communication is carried out between described mobile unit and described portable equipment, described portable equipment measures the received signal strength of the 1st wireless signal when receiving the 1st wireless signal sent from described mobile unit, and the 2nd wireless signal comprising this measurement result is sent to described mobile unit, described mobile unit judges the position of described portable equipment in described communication zone according to the measurement result of described received signal strength contained in described 2nd wireless signal, and carry out the corresponding wagon control of judged result therewith, the feature of the electron key system of described vehicle is,
Described 1st wireless signal comprises train of pulse portion, and this train of pulse portion has multiple corresponding with the high level signal level for measuring received signal strength,
The received signal strength of the described portable equipment pair signal level corresponding with the high level in the train of pulse portion that described 1st wireless signal comprises repeatedly measures,
Described mobile unit, according to removing the measurement result of predetermined number from the maximum measurement result of intensity and remaining measurement result from multiple measurement results of the received signal strength measured by described portable equipment, judges the position of described portable equipment.
2. the electron key system of vehicle according to claim 1, wherein,
The judgement of the position of described portable equipment, according to removing the measurement result of predetermined number from the maximum measurement result of intensity and the average of remaining measurement result carries out from described multiple measurement result.
3. the electron key system of the vehicle according to claims 1 or 2, wherein,
Described predetermined number is set as 1.
4. the electron key system of the vehicle according to claims 1 or 2, wherein,
Described portable equipment is when having carried out repeatedly measuring to the received signal strength of described 1st wireless signal, by the measurement result that removes predetermined number from the maximum measurement result of intensity from described multiple measurement result and remaining measurement result is included in described 2nd wireless signal, and send described 2nd wireless signal.
5. the electron key system of the vehicle according to claims 1 or 2, wherein,
Described mobile unit has and described 1st wireless signal is sent to the outer periphery of the driver's seat car door of described vehicle and the 1st transmitter of car indoor and described 1st wireless signal is sent to the outer periphery of the co-pilot seat car door of described vehicle and the 2nd transmitter of car indoor
Described mobile unit judges the position of described portable equipment according to the received signal strength determined by described portable equipment when have sent described 1st wireless signal from described 1st transmitter and the both sides of received signal strength that determined by described portable equipment when have sent described 1st wireless signal from described 2nd transmitter, and carries out the corresponding wagon control of judged result therewith.
6. the electron key system of the vehicle according to claims 1 or 2, wherein,
Containing the wake-up signal for making described portable equipment start and the requirement signal requiring described portable equipment transmission authentication information in the wireless signal being sent to described portable equipment from described mobile unit, described 1st wireless signal is described wake-up signal and described of requiring in signal.
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|---|---|---|---|
| JP2011-280387 | 2011-12-21 | ||
| JP2011280387A JP5667038B2 (en) | 2011-12-21 | 2011-12-21 | Vehicle electronic key system |
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| Publication Number | Publication Date |
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| CN103174336A CN103174336A (en) | 2013-06-26 |
| CN103174336B true CN103174336B (en) | 2016-01-20 |
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| CN201210568287.9A Expired - Fee Related CN103174336B (en) | 2011-12-21 | 2012-12-12 | The electron key system of vehicle |
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| JP (1) | JP5667038B2 (en) |
| CN (1) | CN103174336B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6182220B2 (en) * | 2014-01-14 | 2017-08-16 | アルプス電気株式会社 | Vehicle communication device |
| JP2016053242A (en) * | 2014-09-02 | 2016-04-14 | 株式会社オートネットワーク技術研究所 | On-vehicle locking device and locking system |
| US9629189B2 (en) * | 2014-11-17 | 2017-04-18 | GM Global Technology Operations LLC | System and method for enabling a user to adjust the operation of a powertrain in a vehicle, to adjust the appearance of a user interface device in the vehicle, and/or to adjust vehicle noise |
| JP6043335B2 (en) * | 2014-12-22 | 2016-12-14 | 本田技研工業株式会社 | Remote engine start system |
| KR101767496B1 (en) * | 2015-08-11 | 2017-08-11 | (주)혜강씨큐리티 | Digital Door-Lock having Automatic Unlock Funciton Using Smart Phone and Control Method Thereof |
| JP6358210B2 (en) * | 2015-09-16 | 2018-07-18 | トヨタ自動車株式会社 | Smart key system |
| CN108700419A (en) * | 2015-10-08 | 2018-10-23 | 沃克斯国际公司 | For micro- positions portable formula vehicle control apparatus and the system and method that communicate with |
| JP6429169B2 (en) * | 2015-12-10 | 2018-11-28 | パナソニックＩｐマネジメント株式会社 | On-vehicle device, portable device, and vehicle wireless communication system |
| US9911259B1 (en) * | 2017-01-20 | 2018-03-06 | Lear Corporation | Passive entry passive start (PEPS) system with integrated authorization and ranging communications |
| FR3064792B1 (en) * | 2017-03-28 | 2019-03-29 | Continental Automotive France | METHOD FOR ACTIVATION OF A VEHICLE FUNCTION |
| JP7003820B2 (en) * | 2018-04-09 | 2022-01-21 | 株式会社Soken | Electronic key system for vehicles |
| CN109413571B (en) * | 2018-10-25 | 2021-02-02 | 上海麦士信息技术有限公司 | Automobile door Bluetooth BLE positioning method based on automatic unlocking |
| JP7046900B2 (en) * | 2019-12-17 | 2022-04-04 | 本田技研工業株式会社 | Position measurement system, position measurement method, position measurement instruction method, position measurement instruction program, and vehicle control device |
| CN112423279B (en) * | 2020-10-14 | 2022-05-03 | 奇瑞汽车股份有限公司 | Method for identifying installation position of Bluetooth slave module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262532A (en) * | 2007-02-15 | 2008-09-10 | 李尔公司 | Keyless entry multi-channel RKE system |
| CN101798888A (en) * | 2009-02-06 | 2010-08-11 | 阿尔卑斯电气株式会社 | Portable device for vehicle |
| CN101489295B (en) * | 2009-02-20 | 2010-09-15 | 北京北方烽火科技有限公司 | Power controlling method for OFDM system base station receiver |
| CN102071842A (en) * | 2009-11-11 | 2011-05-25 | 株式会社东海理化电机制作所 | Key locator for electronic key system |
| CN102104435A (en) * | 2009-12-22 | 2011-06-22 | 李尔公司 | Passive entry system and method for a vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2707036B2 (en) * | 1992-12-17 | 1998-01-28 | 株式会社大井製作所 | Operating device for car door lock |
| JP4528528B2 (en) * | 2003-01-10 | 2010-08-18 | 株式会社日立製作所 | Navigation server, navigation display method |
| JP2006348497A (en) * | 2005-06-14 | 2006-12-28 | Alps Electric Co Ltd | Keyless entry device |
| JP2009217371A (en) * | 2008-03-07 | 2009-09-24 | Nissan Motor Co Ltd | Information processor, information processing system and information processing method |
-
2011
- 2011-12-21 JP JP2011280387A patent/JP5667038B2/en active Active
-
2012
- 2012-12-12 CN CN201210568287.9A patent/CN103174336B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262532A (en) * | 2007-02-15 | 2008-09-10 | 李尔公司 | Keyless entry multi-channel RKE system |
| CN101798888A (en) * | 2009-02-06 | 2010-08-11 | 阿尔卑斯电气株式会社 | Portable device for vehicle |
| CN101489295B (en) * | 2009-02-20 | 2010-09-15 | 北京北方烽火科技有限公司 | Power controlling method for OFDM system base station receiver |
| CN102071842A (en) * | 2009-11-11 | 2011-05-25 | 株式会社东海理化电机制作所 | Key locator for electronic key system |
| CN102104435A (en) * | 2009-12-22 | 2011-06-22 | 李尔公司 | Passive entry system and method for a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103174336A (en) | 2013-06-26 |
| JP2013130013A (en) | 2013-07-04 |
| JP5667038B2 (en) | 2015-02-12 |
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