FR2955069A1 - Motor vehicle's opening frame locking or unlocking method, involves automatic triggering of unlocking of opening frame of motor vehicle in case of localization of badge having stored identification reference, inside motor vehicle - Google Patents

Motor vehicle's opening frame locking or unlocking method, involves automatic triggering of unlocking of opening frame of motor vehicle in case of localization of badge having stored identification reference, inside motor vehicle Download PDF

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Publication number
FR2955069A1
FR2955069A1 FR1001823A FR1001823A FR2955069A1 FR 2955069 A1 FR2955069 A1 FR 2955069A1 FR 1001823 A FR1001823 A FR 1001823A FR 1001823 A FR1001823 A FR 1001823A FR 2955069 A1 FR2955069 A1 FR 2955069A1
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FR
France
Prior art keywords
badge
vehicle
motor vehicle
unlocking
opening frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR1001823A
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French (fr)
Inventor
Alain Brillon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Continental Automotive France SAS
Original Assignee
Continental Automotive GmbH
Continental Automotive France SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH, Continental Automotive France SAS filed Critical Continental Automotive GmbH
Priority to FR1001823A priority Critical patent/FR2955069A1/en
Publication of FR2955069A1 publication Critical patent/FR2955069A1/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/00317Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having only one limited data transmission range
    • G07C2009/00333Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having only one limited data transmission range and the lock having more than one limited data transmission ranges
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G07C2009/00388Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks code verification carried out according to the challenge/response method
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The method involves storing an identification reference of a mobile badge, while controlling the locking of an opening frame of a motor vehicle. The badge having stored identification reference, is searched by covering an interior and an exterior of the vehicle, while carrying out an opening frame opening operation associated with an opening frame unlocking control operation. Unlocking of the opening frame of the vehicle is automatically triggered in case of localization of the badge having stored reference inside the vehicle.

Description

La présente invention concerne un procédé de verrouillage / déverrouillage d'un véhicule automobile. Plus précisément, l'invention est relative à un perfectionnement aux procédés de déverrouillage des ouvrants et/ou de démarrage d'un véhicule à l'arrêt. The present invention relates to a method of locking / unlocking a motor vehicle. More specifically, the invention relates to an improvement to the unlocking methods of the opening and / or starting a vehicle at a standstill.

Certains procédés de verrouillage consistent à émettre de façon continue, à partir du véhicule, un signal à basse fréquence LF d'interrogation ou de détection d'un badge porté par un conducteur et à recevoir un signal radio fréquence RF de validation émis en retour par le badge indiquant que ce dernier se trouve toujours dans une zone de couverture déterminée (dite zone LF), à proximité du véhicule. Some locking methods consist in continuously transmitting from the vehicle a low frequency signal LF for interrogating or detecting a badge carried by a conductor and receiving a validation RF radio signal transmitted back by the badge indicating that the latter is still in a specific coverage area (called LF area), near the vehicle.

Ces procédés fonctionnent de façon automatique par éloignement du conducteur et sont dits du type « Walk Away Locking » ou «WAL » puisqu'ils verrouillent automatiquement le véhicule lors de l'éloignement du badge. D'autres procédés, plus anciens, sont mis en oeuvre manuellement au moyen d'un badge actionné par le conducteur pour assurer, par émission d'une onde radio, la 15 commande à distance de verrouillage et/ou déverrouillage du véhicule. Avec les procédés « WAL », dès que le badge se trouve hors de portée du signal LF émis par le véhicule (en général la zone de couverture a un rayon d'environ 2 à 3 m), le badge perd le signal LF et transmet alors automatiquement en retour au véhicule un signal radiofréquence RF spécifique (appelé « trame spontanée ») dont la 20 portée est plus grande que celle du signal LF reçu. Cette réponse du badge est analysée par le véhicule comme une instruction de verrouillage du véhicule. Ce mode de fonctionnement est dit « positif ». Par ailleurs, si le véhicule, bien qu'ayant continué d'émettre des signaux LF, ne 25 reçoit plus aucun signal RF de validation du badge en retour (ni même de trame spontanée) pendant un laps de temps prédéterminé, il passe automatiquement, et par défaut, en position de verrouillage pour des raisons de sécurité. Ce second mode de fonctionnement est dit « négatif », de secours ou de « back up ». Les procédés connus prévoient la mise en configuration du système de 30 verrouillage selon l'un et/ou l'autre de ces deux modes. Ce procédé est normalement fiable et le déverrouillage est ensuite assuré grâce à l'émission par ledit badge d'un signal de commande de déverrouillage, généralement associé à une manoeuvre d'ouverture de la poignée d'un ouvrant. Cependant, dans certaines circonstances et, notamment, en présence de 35 perturbations électromagnétiques parasites générées, par exemple, par des appareils de télécommunication tels que des téléphones portables, ou de défaillance de la batterie du badge, on constate soit un dysfonctionnement des moyens émetteur/récepteur du fait de l'altération du dialogue entre le badge et le système embarqué dans le véhicule, soit encore l'apparition de défauts liés au mode de fonctionnement du système lui-même. Dans de tels cas, il existe un risque important de verrouillage du véhicule alors que le badge se trouve à l'intérieur. C'est notamment, le cas en cas d'oubli ou de négligence du conducteur ou d'un passager. En effet, le mode d'interrogation du badge par les moyens d'émission embarqués dans le véhicule est essentiellement orienté vers l'extérieur bien que certains procédés prévoient aussi une phase de détection intérieure, mais cette phase peut être brouillée pour les raisons ci-dessus évoquées, par exemple. Dans ces conditions et en fonction de la configuration du système, soit le badge situé à l'intérieur de l'habitacle ne peut percevoir le signal émis par le véhicule et transmet alors un signal de verrouillage comme s'il se trouvait hors de portée de la détection, soit c'est le véhicule lui-même qui n'ayant pas détecté de badge ou n'ayant détecté que des badges inhibés ou inactifs, se met automatiquement et par défaut en position de verrouillage. Dans d'autres circonstances, un ordre de verrouillage est envoyé au véhicule alors que toutes les portières ne sont pas fermées. Cela peut se produire, notamment, lorsque certains passagers ne sont pas encore sortis du véhicule ou tardent à le faire. Dans ce cas, le système met le moyen de verrouillage en attente jusqu'au moment où la dernière portière est enfin fermée. A ce moment là, l'ordre de verrouillage est exécuté. Ainsi, entre le moment où l'ordre de verrouillage a été donné et le moment où il a été exécuté, il peut s'être écoulé une durée significative pendant laquelle le badge initialement sorti du périmètre de la zone de couverture LF a pu y rentrer à nouveau. Il est même possible qu'ensuite ce badge soit réintroduit dans le véhicule (isolément ou bien, par exemple, en étant resté dans la poche d'un vêtement) où il va se trouver emprisonné au moment du verrouillage différé puis inhibé (pour des raisons de sécurité) après détection par le système. Dans ce dernier cas, le conducteur se trouve à l'extérieur de son véhicule fermé dans l'incapacité de le déverrouiller sauf à disposer d'un badge de secours. En outre, si le véhicule est associé à plusieurs badges d'accès mains libres, c'est le dernier badge qui sortira de la zone de couverture LF qui risquera de rester emprisonné et inhibé pour les mêmes raisons que celles évoquées pour un badge d'accès unique. These methods operate automatically away from the driver and are said to be "Walk Away Locking" or "WAL" since they automatically lock the vehicle when the badge is removed. Other, older, methods are implemented manually by means of a driver-operated badge for providing, by radio wave emission, the remote control of locking and / or unlocking of the vehicle. With "WAL" processes, as soon as the badge is out of range of the LF signal emitted by the vehicle (in general the coverage area has a radius of approximately 2 to 3 m), the badge loses the LF signal and transmits then automatically back to the vehicle a specific RF radio frequency signal (called "spontaneous frame") whose range is greater than that of the received LF signal. This badge response is analyzed by the vehicle as a vehicle lock instruction. This mode of operation is called "positive". On the other hand, if the vehicle, although having continued to transmit LF signals, no longer receives any RF signal for validation of the badge in return (or even spontaneous frame) for a predetermined period of time, it automatically switches to and by default, in lock position for security reasons. This second mode of operation is called "negative", backup or "back up". Known methods provide for the configuration of the locking system according to one and / or the other of these two modes. This method is normally reliable and the unlocking is then ensured by the issuance by said badge of an unlocking control signal, generally associated with an opening operation of the handle of an opening. However, under certain circumstances and, in particular, in the presence of parasitic electromagnetic disturbances generated, for example, by telecommunication devices such as mobile phones, or battery failure of the badge, there is either a malfunction of the transmitter / transmitter means. receiver because of the alteration of the dialogue between the badge and the system embedded in the vehicle, or the appearance of defects related to the operating mode of the system itself. In such cases, there is a significant risk of locking the vehicle while the badge is inside. This is particularly the case in case of forgetfulness or negligence of the driver or a passenger. Indeed, the mode of interrogation of the badge by the transmitting means on board the vehicle is essentially oriented towards the outside although some methods also provide for an interior detection phase, but this phase can be blurred for the reasons mentioned above. evoked above, for example. Under these conditions and depending on the configuration of the system, the badge located inside the passenger compartment can not perceive the signal emitted by the vehicle and then transmits a locking signal as if it were out of range of the detection, or it is the vehicle itself which has not detected a badge or has detected only inhibited or inactive badges, is automatically and by default in the locking position. In other circumstances, a lock order is sent to the vehicle while not all doors are closed. This can happen, for example, when some passengers are not out of the car yet or are slow to do so. In this case, the system puts the locking means on hold until the last door is finally closed. At this point, the lock command is executed. Thus, between the moment when the lock order was given and the moment it was executed, a significant duration may have elapsed during which the badge initially left the perimeter of the coverage area LF could have returned to it. again. It is even possible that afterwards this badge is reintroduced into the vehicle (alone or, for example, while remaining in the pocket of a garment) where it will be trapped at the time of the delayed lock then inhibited (for reasons security) after detection by the system. In the latter case, the driver is outside his closed vehicle unable to unlock unless a spare badge. In addition, if the vehicle is associated with several hands-free access badges, it is the last badge that will leave the LF coverage area that may remain imprisoned and inhibited for the same reasons as those mentioned for a badge. single access.

Dans toutes les circonstances précédemment évoquées, on constate une défaillance du système quant à la détermination de la position du badge au moment où l'ordre de verrouillage est exécuté. La présente invention a pour but de résoudre les problèmes techniques 5 exposés ci-dessus, qualifiés de pannes « immobilisantes » puisqu'elles provoquent l'immobilisation du véhicule. On notera que de manière connue en soi, chaque badge est muni d'une référence d'identification. Pour atteindre ce but, le procédé de verrouillage / déverrouillage d'un véhicule 10 selon l'invention consiste, dans une zone de couverture LF déterminée, à émettre à partir du véhicule un signal de détection LF d'un badge mobile et à émettre en retour à partir du badge un signal de réponse de sorte qu'en absence de réception par le badge du signal de détection du véhicule ou en absence de réception par le véhicule pendant un laps de temps prédéterminé du signal de réponse en provenance du badge, le verrouillage du 15 véhicule soit commandé, le dit procédé étant caractérisé en ce que conjointement à la commande de verrouillage, on effectue une mémorisation d'une référence d'identification dudit badge puis, conjointement à une manoeuvre d'ouverture associée à une commande de déverrouillage, on effectue une recherche dudit badge mémorisé en couvrant tant l'extérieur que l'intérieur du véhicule et, en cas de localisation à l'intérieur du badge 20 préalablement mémorisé, on déclenche automatiquement le déverrouillage du véhicule. De préférence, le signal de détection du badge est un signal basse fréquence (LF) de l'ordre de 125 kHz et le signal de réponse du badge est un signal radio fréquence (RF) de l'ordre de 315 ou 433,92 MHz. L'invention consiste donc à mémoriser la référence d'identification du badge 25 ayant commandé (volontairement ou pas) le véhicule. Ensuite, lors de la phase de déverrouillage, le badge portant la référence d'identification mémorisée est recherché à l'extérieur du véhicule (cas normal) et le déverrouillage est effectué. Selon l'invention, lors de la phase de déverrouillage le badge portant la 30 référence d'identification mémorisée est également recherché à l'intérieur du véhicule. S'il se trouve à l'intérieur du véhicule, il autorise le déverrouillage du véhicule, ce qui résout le problème posé. Si c'est un autre badge du véhicule (donc portant une autre référence d'identification que celle mémorisée) qui est utilisé pour déverrouiller le véhicule, c'est la 35 procédure classique qui s'applique. In all the aforementioned circumstances, there is a system failure in determining the position of the badge at the time the lock command is executed. The present invention aims to solve the technical problems described above, qualified as "immobilizing" failures since they cause the immobilization of the vehicle. It will be noted that in a manner known per se, each badge is provided with an identification reference. To achieve this goal, the locking / unlocking method of a vehicle 10 according to the invention consists, in a determined coverage area LF, of transmitting from the vehicle a detection signal LF of a mobile badge and to transmit in return from the badge a response signal so that in the absence of reception by the badge of the detection signal of the vehicle or in the absence of reception by the vehicle for a predetermined period of time of the response signal from the badge, the The locking of the vehicle is controlled, the said method being characterized in that, in conjunction with the lock control, storage is made of an identification reference of said badge and, together with an opening maneuver associated with an unlocking command. , a search of said memorized badge is performed by covering both the outside and the inside of the vehicle and, in case of location inside the badge 20 previously memorized, it automatically triggers the unlocking of the vehicle. Preferably, the detection signal of the badge is a low frequency signal (LF) of the order of 125 kHz and the response signal of the badge is a radio frequency signal (RF) of the order of 315 or 433.92 MHz . The invention therefore consists in memorizing the identification reference of the badge 25 having commanded (voluntarily or not) the vehicle. Then, during the unlocking phase, the badge bearing the identification number stored is searched outside the vehicle (normal case) and unlocking is performed. According to the invention, during the unlocking phase, the badge bearing the memorized identification reference is also searched inside the vehicle. If it is inside the vehicle, it allows the unlocking of the vehicle, which solves the problem. If it is another badge of the vehicle (thus bearing another identification reference than that memorized) which is used to unlock the vehicle, it is the conventional procedure that applies.

La procédure selon l'invention permet donc d'ouvrir le véhicule même si l'utilisateur ne possède pas de badge de secours dans la mesure où le badge ayant provoqué la fermeture est présent dans le véhicule. Le procédé selon l'invention permet d'éviter ainsi les problèmes d'immobilisation intempestive qui conduisent à interdire l'accès au véhicule lorsque le badge est resté à l'intérieur de l'habitacle ou du coffre après verrouillage et qui ont des conséquences matérielles très néfastes et préjudiciables pour les utilisateurs de véhicules. The procedure according to the invention thus makes it possible to open the vehicle even if the user does not have a spare badge insofar as the badge that caused the closure is present in the vehicle. The method according to the invention thus makes it possible to avoid problems of inadvertent immobilization which lead to prohibiting access to the vehicle when the badge has remained inside the passenger compartment or the boot after locking and which have material consequences. very harmful and detrimental to vehicle users.

Claims (2)

REVENDICATIONS1. Procédé de verrouillage / déverrouillage d'un véhicule consistant, dans une zone de couverture LF déterminée : • à émettre à partir du véhicule un signal de détection LF d'un badge mobile et, • à émettre en retour, à partir du badge, un signal de réponse de sorte qu'en absence de réception par le badge du signal de détection du véhicule ou en absence de réception par le véhicule, pendant un laps de temps prédéterminé du signal de réponse en provenance du badge, le verrouillage du véhicule soit commandé, le dit procédé étant caractérisé en ce que: - conjointement à la commande de verrouillage, on effectue une mémorisation d'une référence d'identification dudit badge puis, - conjointement à une manoeuvre d'ouverture associée à une commande de déverrouillage, on effectue une recherche dudit 15 badge mémorisé en couvrant tant l'extérieur que l'intérieur du véhicule et, - en cas de localisation à l'intérieur du badge préalablement mémorisé, on déclenche automatiquement le déverrouillage du véhicule. 20 REVENDICATIONS1. A method of locking / unlocking a vehicle consisting, in a given coverage area LF: • to emit from the vehicle a detection signal LF of a mobile badge and • to send back, from the badge, a response signal so that in the absence of reception by the badge of the detection signal of the vehicle or in the absence of reception by the vehicle, for a predetermined lapse of the response signal from the badge, the locking of the vehicle is controlled said method being characterized in that: - in conjunction with the lock control, a reference identification of said badge is stored and then, together with an opening maneuver associated with an unlock command, is performed a search for said memorized badge covering both the outside and the inside of the vehicle and, in the case of localization inside the previously memorized badge , It automatically triggers the unlocking of the vehicle. 20 2. Procédé de verrouillage selon la revendication 1 caractérisé en ce que le signal de détection du badge est un signal basse fréquence (LF). 10 2. Locking method according to claim 1 characterized in that the detection signal of the badge is a low frequency signal (LF). 10
FR1001823A 2010-04-29 2010-04-29 Motor vehicle's opening frame locking or unlocking method, involves automatic triggering of unlocking of opening frame of motor vehicle in case of localization of badge having stored identification reference, inside motor vehicle Pending FR2955069A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1001823A FR2955069A1 (en) 2010-04-29 2010-04-29 Motor vehicle's opening frame locking or unlocking method, involves automatic triggering of unlocking of opening frame of motor vehicle in case of localization of badge having stored identification reference, inside motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1001823A FR2955069A1 (en) 2010-04-29 2010-04-29 Motor vehicle's opening frame locking or unlocking method, involves automatic triggering of unlocking of opening frame of motor vehicle in case of localization of badge having stored identification reference, inside motor vehicle

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FR2955069A1 true FR2955069A1 (en) 2011-07-15

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FR1001823A Pending FR2955069A1 (en) 2010-04-29 2010-04-29 Motor vehicle's opening frame locking or unlocking method, involves automatic triggering of unlocking of opening frame of motor vehicle in case of localization of badge having stored identification reference, inside motor vehicle

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060186988A1 (en) * 2005-02-09 2006-08-24 Proefke David T Temporary key invalidation for electronic key and locking system
EP1820704A1 (en) * 2006-02-17 2007-08-22 Calsonic Kansei Corporation Keyless entry system adapted for motor vehicle
EP1965355A1 (en) * 2007-03-01 2008-09-03 Continental Automotive France Method of temporarily inhibiting, when detected in a locked vehicle, a portable remote control box, called identifier, of a hands-free access device
US20080231417A1 (en) * 2007-03-22 2008-09-25 Denso International America, Inc. Automatic locking failsafe for vehicles with passive keys
US20100073153A1 (en) * 2008-09-25 2010-03-25 Denso Corporation Smart entry system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060186988A1 (en) * 2005-02-09 2006-08-24 Proefke David T Temporary key invalidation for electronic key and locking system
EP1820704A1 (en) * 2006-02-17 2007-08-22 Calsonic Kansei Corporation Keyless entry system adapted for motor vehicle
EP1965355A1 (en) * 2007-03-01 2008-09-03 Continental Automotive France Method of temporarily inhibiting, when detected in a locked vehicle, a portable remote control box, called identifier, of a hands-free access device
US20080231417A1 (en) * 2007-03-22 2008-09-25 Denso International America, Inc. Automatic locking failsafe for vehicles with passive keys
US20100073153A1 (en) * 2008-09-25 2010-03-25 Denso Corporation Smart entry system

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