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WO1999023614A1 - Dispositif de securite empechant une utilisation non autorisee, en particulier l'utilisation d'un vehicule automobile - Google Patents

Dispositif de securite empechant une utilisation non autorisee, en particulier l'utilisation d'un vehicule automobile Download PDF

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Publication number
WO1999023614A1
WO1999023614A1 PCT/DE1998/003182 DE9803182W WO9923614A1 WO 1999023614 A1 WO1999023614 A1 WO 1999023614A1 DE 9803182 W DE9803182 W DE 9803182W WO 9923614 A1 WO9923614 A1 WO 9923614A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
security device
vehicle
motor vehicle
identification
Prior art date
Application number
PCT/DE1998/003182
Other languages
German (de)
English (en)
Inventor
Maximilian Löffler
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1999023614A1 publication Critical patent/WO1999023614A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/25—Means to switch the anti-theft system on or off using biometry
    • B60R25/252—Fingerprint recognition
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME 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
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition

Definitions

  • the invention relates to a security device against unauthorized use, in particular a motor vehicle, such as a leasing or rental vehicle or a vehicle of a vehicle fleet.
  • This security device is intended to use an object, in particular the use of an object
  • bidirectional communication takes place between a motor vehicle and a control center.
  • the central control unit sends out release signals to the motor vehicle.
  • the release signals also define a restriction on the use of the vehicle. If the user opens his vehicle with a key, the system asks whether there is a user authorization. If there is an authorization, the vehicle can be used to the extent communicated with the release signal.
  • Another known security device (US 4,353,056 or DE 42 22 387 C2) has a biometric identification device with which a user's fingerprint is captured before access to the vehicle is released. With such safety devices, only the user who was initially defined can use the vehicle in one use defined scope. If a leasing or rental vehicle changes hands or users, the authorization data of the new user must be stored in the vehicle in advance so that it can use the vehicle properly.
  • the object of the invention is to prevent unauthorized use of an object, in particular a leasing or rental vehicle or a vehicle of a vehicle fleet, reliably and in a simple manner.
  • the security device has a biometric identification device with which the biometric features of a user are recorded. When accessing the motor vehicle, these biometric features are compared with stored comparison data. If there is agreement, the use of the vehicle is permitted. On the other hand, so that the comparison data can be changed at any time, the security device has a receiving device via which authorization data are received via a communication system. These authorization data are either stored as comparison data or used to initiate initialization and then to save the comparison data.
  • the leasing or rental vehicle can be passed on to another owner, the authorization data being previously recorded in a control center and sent to the vehicle via the communication system. Not all authorization data of every future user need be stored in the vehicle in the vehicle. Users of a motor vehicle can therefore switch as long as they are known as a user in the central office. Key to use the motor vehicle do not need to be passed from one user to the next. Only the data of one user can be stored in the motor vehicle.
  • a vehicle In the case of a vehicle fleet, it can thus be determined that a vehicle is used by a first driver and after a certain time by a second driver.
  • the scope of use can be transferred to the vehicle with the authorization data before the driver change.
  • the initialization can take place at the location of the motor vehicle. However, the start of initialization is released by the control center.
  • the biometric identification device can be a fingerprint recognition unit, a speech recognition unit or an image recognition unit with which the biometric features of a user are recorded. A user thus does not need to carry a key with which he must unlock the vehicle and start the motor vehicle.
  • the biometric identification device is preferably arranged on or in the motor vehicle in such a way that bio etrical identification can be carried out with users who both come from outside and are sitting in the vehicle.
  • the identification device is preferably arranged on or in the vicinity of a lock (door lock or ignition lock) of a motor vehicle.
  • the authorization data can be personal, biometric data or even object-specific usage data with which the scope of use is determined.
  • Control data can also be transmitted as authorization data, on the basis of which an initialization is initiated, after the successful course of which comparison data of the user performing the initialization are stored. The initialization is carried out when a pin code number is entered correctly via a keyboard.
  • FIG. 1 a motor vehicle with a security device according to the invention, which communicates with a control center via a communication system
  • FIG. 2 a block diagram of the security device according to FIG. 1
  • FIG. 4 a block diagram of the biometric identification device
  • FIG. 3 a biometric identification device attached to a door handle is arranged
  • Figure 5 another embodiment of the biometric identification device.
  • a security device according to the invention against unauthorized use of an object is explained below using the exemplary embodiment of the use of a motor vehicle.
  • the security device can also be used for many other objects in which authorization must be demonstrated before the object is used.
  • a motor vehicle 1 (FIG. 1) has a transmitting and receiving device 2 (cf. also FIG. 2), which has an antenna 3 is connected in or on the motor vehicle 1.
  • the transmitting and receiving device 2 is connected to a control unit 4, in which received data are evaluated and data to be sent are processed.
  • the control unit 4 is also connected to a biometric identification device, which records the biometric features of a user and processes them into identification data.
  • the transmitting and receiving device 2 and the control unit 4 are supplied with energy by a vehicle battery 5.
  • the safety device in the motor vehicle 1 communicates with a control center 6 via a communication system.
  • the control center 6 can send and receive data to the motor vehicle 1 via a transmission / reception antenna 7.
  • the communication system can be, for example, a mobile telephone or mobile radio system in which the vehicle telephone system can automatically establish a connection to the control center 6.
  • the communication system can also be a satellite communication system in which data are sent from a center 6 via geostationary satellites to the motor vehicle 1 and vice versa.
  • the communication system can also be another radio system in which data is transmitted between an object and a control center 6.
  • the design of the communication system is immaterial to the invention. It is essential that data is transmitted between a control center 6 and an object.
  • the data transmission between the motor vehicle 1 and the control center 6 or vice versa takes place in encrypted / coded form, so that eavesdropping on the data and use is made more difficult by unauthorized persons.
  • the data always contain an object-specific or vehicle-specific identifier so that vehicles cannot be mixed up.
  • the vehicle-side safety device has the transmitting and receiving device 2 (FIG. 2), which receives signals from the control center 6 via the antenna 3. These signals are demodulated and converted in the transmitting and receiving device 2 and fed to the central control unit 4.
  • Control unit 4 is also supplied with biometric data, which are recorded by the biometric identification device when access to the motor vehicle 1 is desired.
  • a fingerprint recognition unit 8 is advantageously used as the identification device.
  • An image recognition unit 9 or a voice recognition unit 10 can also serve as an identification device.
  • a fingerprint of a user is correspondingly recorded with the fingerprint recognition unit 8, a body feature or biometric pattern, such as the face of the user or the characteristic iris in the eye of the user with the image recognition unit 9, or the user's speech with the speech recognition unit 10 .
  • the recorded data are converted (digitized) and supplied to the control unit 4 in a processed manner. The data is evaluated there.
  • the control unit 4 compares the identification data, which were recorded by the biometric identification device, with comparison data, which are stored in a target value memory 11.
  • the comparison data is the data that is expected when a user authenticates himself (proof of his authorization).
  • a control signal is generated and sent to a security unit, such as a central locking system 12 or an immobilizer 13. directs.
  • a security unit such as a central locking system 12 or an immobilizer 13. directs.
  • the doors of the vehicle can thus be unlocked or the immobilizer 13 can be released.
  • the biometric identification device is preferably designed as a fingerprint recognition unit 8.
  • This has a sensor 15 (FIG. 3) for detecting the fingerprint, which is arranged on the body in a manner that is easily accessible to the user from outside the motor vehicle 1.
  • the user places one or more fingers 16 on the sensor 15.
  • the "external” fingerprint (groove and groove pattern) or the “internal” fingerprint (structure of the epidermis) can be recorded.
  • a signal e.g. optically or acoustically, to the sensor 15 with its sensor surface / contact surface 18. Some of the signals from the sensor surface 18 go into the finger 16 or are reflected from the surface thereof to the sensor surface 18. The signals coming back from the sensor 15 as a result of reflection are transmitted via a
  • the digitized and evaluated pattern of the fingerprint is supplied to the control unit 4 and - similar to that described in DE 42 22 387 C2 - is further processed there.
  • the fingerprint can also be acquired with capacitive electrodes, as described in US Pat. No. 4,353,056. There are many other ways of capturing and evaluating the fingerprint. Since fingerprint recognition units and their mode of operation are sufficiently known, this will not be discussed any further.
  • a vitality recognition unit 20 can also be present.
  • a pulse detection unit is provided as the vitality detection unit 20, which detects the pulse of the finger 16. Only when a pulse is recognized are the recorded fingerprint patterns compared with expected data which are stored in the setpoint memory 11. If there is at least a substantial match, the central locking system 12 or the immobilizer 13 is controlled.
  • the sensor 15 for detecting the fingerprint can also be attached to a door handle 21 (FIG. 4).
  • the sensor 15 is advantageously arranged protected on the inside of the door handle 21. When a user pulls the door handle 21, at least one finger 16 rests on the sensor 15.
  • a seal 22 can be provided against which the door handle 21 bears tightly when not in use.
  • the voice recognition unit 10 can also be used instead of the fingerprint recognition unit 8 to record the biometric identification data.
  • a microphone 23 (FIG. 5) is arranged in the motor vehicle 1 in such a way that it can record the words spoken by a user. The words or speech patterns are then in the speech recognition Unit 10 converted and evaluated and processed in the control unit 4.
  • the control unit 4 compares the speech signals obtained with target signals which are stored in the target value memory 11. If the user is recognized as authorized on the basis of the spoken words, the door locks of the motor vehicle 1 are unlocked via the control unit 4.
  • the central locking system 12 comprises a driver's door lock 24, a passenger door lock 25, two front locks 26, a trunk lid lock 27 and - if present - a fuel cap lock 28. These locks can be locked or unlocked by the control unit 4 - partly individually or all together - if the user is recognized as authorized.
  • Biometric authentication fingerprint recognition, voice recognition or image recognition
  • a further sensor for recording the fingerprint a further microphone for recording the speech or a video camera 29 for image recognition are then arranged in the interior of the motor vehicle 1.
  • the biometric identification device is activated during the start attempt. If the authentication is successful (authorization is proven), the vehicle can be used properly, since only then the immobilizer 13 is released.
  • expected biometric data of a user are stored in the setpoint memory 11. These data were recorded when the safety device was initialized. During initialization, a user is permitted to use a motor vehicle 1 for the first time by storing his authorization data. With the security device according to the invention, the biometric data can be recorded once or several times in a control center 6. There, every user who is allowed to use the vehicle can have his biometric features recorded in the form of the identification data. The biometric data can be stored in the control center 6 inaccessible to third parties.
  • the corresponding authorization data for the motor vehicle 1 are then sent via the control center 6, i.e. the biometric data of the user who is allowed to use the vehicle is sent to the vehicle as authorization data.
  • the authorization data are stored there in the setpoint memory 11.
  • the previous authorization data can be overwritten or deleted.
  • Authorization data from several users can also be stored there at the same time. Then several users may use motor vehicle 1.
  • a new user can also be subsequently approved for the vehicle by having his authorization data recorded in the control center 6 by a biometric identification device.
  • the detected identification data are then transmitted to the vehicle as authorization data and stored in the target value memory 11.
  • Usage data can also be transmitted together with the authorization data, by means of which the scope of use of motor vehicle 1 is determined.
  • the scope of use can be a period of time, a geographical area of use, a maximum driving distance, a number of users or coded information.
  • the usage data is sent as a digital value together with the authorization data encoded or coded transmitted to motor vehicle 1.
  • the authorization data are received, they are demodulated and decrypted and stored in the setpoint memory 11.
  • the motor vehicle 1 is then ready for use by the respective authorized user to the extent determined by the usage data.
  • the legitimate scope of use can be determined by known devices such as a clock, an odometer, a GPS location system, etc. be monitored. If the scope is exceeded, the user and the control center 6 can be warned. If it is exceeded further, the motor vehicle 1 can be stopped and locked from the control center 6, i.e. the permission to use is revoked.
  • An initialization control signal together with coded target information e.g. a pin code number to be transmitted to motor vehicle 1.
  • initialization a learning procedure for personal, biometric data is started.
  • identification data are recorded once and stored as authorization data.
  • a new initialization can only be carried out again when an initialization control signal is received again from the control center 6.
  • a pin code number can also be transmitted to the motor vehicle.
  • another input means is required with which coded information is entered by the user.
  • Such an input means can, for example, be from The landlord or fleet operator can be a handheld transmitter or a chip card. These deliver their coded information to the motor vehicle, where it is compared with the target information received. If they match, the learning procedure is started as described above.
  • the fingerprint recognition unit 8 is activated, on the sensor 15 of which the respective user places his finger 16.
  • the captured fingerprint is processed and converted into comparison data.
  • the comparison data are then stored in the setpoint memory 11. After completion of the initialization, this user can use the vehicle within the defined usage.
  • the additional authorization can be verified by entering the coded information if the information entered matches the previously received target information.
  • Time limits can be set for the initialization process within which the initialization must be carried out. If the initialization is not carried out within the set period, all previous comparison data can continue to apply or can be deleted so that no one is authorized to use the motor vehicle 1, unless new authorization data are transmitted again from the control center 6 or a new one Initialization is in progress. As a precaution, the transmitted pin code number may only be known to the vehicle rental company and the vehicle hirer, i.e. the user, in order to prevent misuse.
  • the stored comparison data are only valid for a predetermined time. After that, their validity expires. This can be done by deleting the memory content of the setpoint memory 11 with the comparison data. The reference value memory 11 must then be supplied with new comparison data before the vehicle can be used properly again.
  • the biometric identification device can essentially be arranged in the control unit 4, from which the connections to the sensor 15, the microphone 23 or the video camera 29 are made.
  • the control unit 4 can be accommodated in a break-proof housing.
  • the sensor 15 of the fingerprint recognition unit 8 can be arranged on the vehicle door and another sensor in the vicinity of the ignition lock 31, on the dashboard within reach of the user, on the center console or on the gear lever.
  • the video camera 29 can be arranged behind a window of the vehicle in such a way that it captures both the exterior and the interior of the vehicle.
  • the microphone 23 is also arranged in such a way that it can detect both speech signals from the outside and from the inside. Several microphones or several video cameras can also be present. It is immaterial to the invention which biometric features are recorded. It is essential that the recorded biometric features are compared with the comparison data.
  • the comparison data are either sent to the motor vehicle 1 via the central unit 6 and stored there in the setpoint memory 11 or, as a result of a received initialization signal after initialization, is stored in the setpoint memory 11.
  • the setpoint memory 11 can be an EEPROM or another suitable data memory, the data of which cannot be read from the outside by unauthorized persons.
  • the control unit 4 can essentially be a microprocessor or a functionally equivalent device that controls the safety device.
  • the authorization data are exchanged as digital signals between the control center 6 and the motor vehicle 1 wirelessly in a suitable manner, for example as HF signals.
  • the control unit 4 can be connected to the central locking system 12, the immobilizer 13 or another security unit which is only locked or unlocked if the comparison of the detected biometric identification data with the comparison data was successful.
  • the communication system can be an in-house data network with many data lines.
  • the authorization data for the individual security devices (in the case of hotels, these are the door locks) are sent via the control center 6.
  • the access authorization to the rooms can thus be controlled centrally.
  • the hotel guest only needs to leave his fingerprint at the reception.
  • the authorization data for the room can be deleted centrally or with new authorization data from another hotel guest be overwritten. Otherwise, the usage data can provide a limited period of use. The authorization data then expire automatically.
  • Cars, hotel rooms, garage doors, 6 networked personal computers or telephones etc. can be used as objects. be considered.
  • the safety device according to the invention is used in particular for leasing or rental vehicles. Likewise, freight companies can better protect their vehicle fleet (several trucks) with the security device against unauthorized use. The drivers can be compelled to adhere to rest periods due to the usage data.
  • the control center 6 can also receive an alarm signal when the scope of use is exceeded and then contact the user - for example by telephone.
  • An immobilizer 13 is to be understood as an electronic device which enables the internal combustion engine to be started and the vehicle to be driven only if proof of authorization is provided.
  • the device can be arranged, for example, in the engine control unit. If the authorization is verified, it enables the functions of the engine control unit.
  • the device can also electromagnetically control a valve in the fuel line. A controlled switch in the ignition system is also possible, which only permits ignition of the internal combustion engine if proof of authorization is provided.
  • Several electronic devices distributed over the motor vehicle can also serve as an immobilizer.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

Le dispositif de sécurité selon l'invention comporte un récepteur (2) qui reçoit, par l'intermédiaire d'un système de communication, des données de comparaison en provenance d'un central (6). Ces données de comparaison sont mémorisées dans une mémoire de valeurs de consigne (11). Pour permettre l'accès à l'objet (1), des caractéristiques anthropométriques d'un utilisateur sont détectées et comparées avec les données de comparaison mémorisées. En cas de concordance de ces caractéristiques et de ces données, l'utilisation de l'objet (1) est rendue possible.
PCT/DE1998/003182 1997-10-31 1998-10-30 Dispositif de securite empechant une utilisation non autorisee, en particulier l'utilisation d'un vehicule automobile WO1999023614A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19748325 1997-10-31
DE19748325.9 1997-10-31

Publications (1)

Publication Number Publication Date
WO1999023614A1 true WO1999023614A1 (fr) 1999-05-14

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PCT/DE1998/003182 WO1999023614A1 (fr) 1997-10-31 1998-10-30 Dispositif de securite empechant une utilisation non autorisee, en particulier l'utilisation d'un vehicule automobile

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Cited By (24)

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DE19936392A1 (de) * 1999-08-03 2001-02-08 Volkswagen Ag Fahrzeugmietsystem
FR2819958A1 (fr) * 2001-01-19 2002-07-26 Renault Procede et systeme d'exploitation d'une flotte de vehicules
FR2820384A1 (fr) 2001-02-02 2002-08-09 Valeo Electronique Dispositif et procede d'identification pour vehicule automobile et systeme de verrouillage et/ou demarrage associe
WO2002089077A1 (fr) * 2001-05-01 2002-11-07 Zoop Mobility Network Inc. Systeme et procede pour automatiser un processus de location de vehicules
EP1136954A3 (fr) * 2000-03-17 2004-01-28 Still Gmbh Machine de travail mobile avec système d'identification pour opérateurs
EP1530182A1 (fr) * 2001-11-15 2005-05-11 Bell Canada Surveillance et commande à distance d'un véhicule à moteur
EP1280109A3 (fr) * 2001-07-25 2005-12-07 The Chamberlain Group, Inc. Système pour le mouvement d'une barrière comprenant un clavier combiné à transmetteur à commande vocale
EP1306816A3 (fr) * 2001-10-24 2006-01-18 Siemens Aktiengesellschaft Unité de contrôle d'accès pour montage en panneau frontal
WO2004015637A3 (fr) * 2002-08-12 2006-04-27 Qualcomm Inc Procede et appareil de validation de l'utilisateur d'un vehicule et de gestion d'informations de validation
US7171680B2 (en) 2002-07-29 2007-01-30 Idesia Ltd. Method and apparatus for electro-biometric identity recognition
WO2007106875A3 (fr) * 2006-03-15 2007-12-06 Qualcomm Inc Dispositif de codage numérique en liaison radio
WO2008044087A1 (fr) * 2006-10-11 2008-04-17 Renault Trucks Système de partage de véhicule et procédé pour un parc de véhicules
US7523069B1 (en) 1999-11-05 2009-04-21 Fronium International Gmbh Assessing and/or determining of user authorizations using a transponder, a finger print recognition routine or the like
US8175591B2 (en) 2006-12-04 2012-05-08 The Chamerlain Group, Inc. Barrier operator system and method using wireless transmission devices
ITRE20120042A1 (it) * 2012-06-01 2013-12-02 Zucchetti Axess S P A Metodo di funzionamento di un sistema di controllo per l'abilitazione e disabilitazione di apparati di sicurezza
US8643465B2 (en) 2006-12-04 2014-02-04 The Chamberlain Group, Inc. Network ID activated transmitter
US9367978B2 (en) 2013-03-15 2016-06-14 The Chamberlain Group, Inc. Control device access method and apparatus
US9376851B2 (en) 2012-11-08 2016-06-28 The Chamberlain Group, Inc. Barrier operator feature enhancement
US9396598B2 (en) 2014-10-28 2016-07-19 The Chamberlain Group, Inc. Remote guest access to a secured premises
CN105857249A (zh) * 2016-05-25 2016-08-17 宁波萨瑞通讯有限公司 一种汽车门把指纹防盗系统
US9495815B2 (en) 2005-01-27 2016-11-15 The Chamberlain Group, Inc. System interaction with a movable barrier operator method and apparatus
CN106627486A (zh) * 2017-03-01 2017-05-10 厦门理工学院 一种租赁汽车的身份识别钥匙系统及控制方法
US9698997B2 (en) 2011-12-13 2017-07-04 The Chamberlain Group, Inc. Apparatus and method pertaining to the communication of information regarding appliances that utilize differing communications protocol
US10229548B2 (en) 2013-03-15 2019-03-12 The Chamberlain Group, Inc. Remote guest access to a secured premises

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US4353056A (en) 1980-06-05 1982-10-05 Siemens Corporation Capacitive fingerprint sensor
WO1990000296A1 (fr) * 1988-06-30 1990-01-11 Motorola, Inc. Procede et appareil de programmation de dispositifs pour reconnaitre des instructions vocales
US5055658A (en) * 1988-07-25 1991-10-08 Cockburn John B Security system employing digitized personal physical characteristics
DE4222387C2 (de) 1992-07-08 1994-06-30 Stockburger H Verfahren und Vorrichtung zur Identifikation der jeweiligen Raumstruktur eines Prüfobjektes
DE4301039A1 (de) * 1993-01-16 1994-07-21 Uwe Dipl Ing Latsch Elektronisches System zur Verwaltung gemeinschaftlich genutzter Kraftfahrzeuge
DE4324762A1 (de) * 1993-07-23 1995-02-02 Uwe Dipl Ing Latsch Datenerfassungssystem zur nutzerabhängigen Verwaltung gemeinschaftlich genutzter Kraftfahrzeuge
DE19508370A1 (de) 1995-03-10 1996-09-12 Daimler Benz Ag Verfahren zur Sicherung von Fahrzeugen, insbesondere Leasing- oder Mietfahrzeugen, vor unbefugter Nutzung
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Cited By (37)

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Publication number Priority date Publication date Assignee Title
DE19936392A1 (de) * 1999-08-03 2001-02-08 Volkswagen Ag Fahrzeugmietsystem
US7523069B1 (en) 1999-11-05 2009-04-21 Fronium International Gmbh Assessing and/or determining of user authorizations using a transponder, a finger print recognition routine or the like
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