EP0869465A2 - Remote control with a wireless transmitter transferring an identification signal - Google Patents

Remote control with a wireless transmitter transferring an identification signal Download PDF

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Publication number
EP0869465A2
EP0869465A2 EP98105827A EP98105827A EP0869465A2 EP 0869465 A2 EP0869465 A2 EP 0869465A2 EP 98105827 A EP98105827 A EP 98105827A EP 98105827 A EP98105827 A EP 98105827A EP 0869465 A2 EP0869465 A2 EP 0869465A2
Authority
EP
European Patent Office
Prior art keywords
identification
transmitter
remote control
code
key
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.)
Withdrawn
Application number
EP98105827A
Other languages
German (de)
French (fr)
Other versions
EP0869465A3 (en
Inventor
Armin Wagner
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.)
Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0869465A2 publication Critical patent/EP0869465A2/en
Publication of EP0869465A3 publication Critical patent/EP0869465A3/en
Withdrawn legal-status Critical Current

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    • 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
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code
    • 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
    • G07C9/00309—Electronically 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
    • G07C2009/0042—Electronically 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 the transmitted data signal containing a code which is changed
    • G07C2009/00428—Electronically 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 the transmitted data signal containing a code which is changed periodically after a time period
    • 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
    • G07C9/00309—Electronically 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
    • G07C2009/0042—Electronically 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 the transmitted data signal containing a code which is changed
    • G07C2009/00476—Electronically 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 the transmitted data signal containing a code which is changed dynamically
    • 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
    • G07C9/00309—Electronically 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
    • G07C2009/00507—Electronically 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 more than one function
    • 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
    • G07C2009/00753—Electronically 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
    • G07C2009/00769—Electronically 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

Definitions

  • the invention relates to a remote control device with a transmitter for a wirelessly transmitted release signal.
  • Such devices are used in a variety of applications. They serve, for example in the house area to switch electronic devices on and off. In the motor vehicle sector, they serve, for example, the central locking system to use. It is also possible to move a garage door to control.
  • the release signal is sent by radio or infrared or ultrasound transfer.
  • the problem arises that the release signal should only be triggered by the authorized user and because of it different design and technical conditions not possible is to prevent the release signal from being triggered by the unauthorized user. So, for example, he can gain possession of the transmitter without authorization, for example by theft, and then trigger the release signal. This results in increased theft for the application of the garage door and risk of break-in, especially since the release signal is triggered and thus opened of the garage door by the unauthorized owner of the transmitter for the authorized Owner is not recognizable.
  • the invention has for its object a remote control device to create the type mentioned, in which an unauthorized transmission of the Release signals is largely excluded.
  • the release signal is given to the identification of the operator coupled. Only if it is certain with certainty that it really is is the authorized user or owner of the transmitter, it becomes possible trigger the release signal and effect the remote control function.
  • the embodiment of the invention is possible in different ways.
  • a special Aspect of the invention is concerned with the identification of the justified Operator.
  • the authorization can be done using an identification code take place, which is contained in an identification means.
  • an identification means For example, in the case of a vehicle, it can be the vehicle key act.
  • the usual mechanical Keys of a vehicle additionally with a mechanical memory for be provided with the identification code.
  • the memory is related to read out of the commissioning of the vehicle. This commissioning can, for example when closing the ignition circuit by the provided Vehicle keys are made. This ensures that the release signal can only be triggered if the owner of the vehicle key has closed the ignition circuit.
  • the mechanical part of the vehicle key serves as additional protection.
  • the release signal can the remote control of a garage door or other remote control functions act.
  • Such functions are increasingly in the home in use and serve, for example, to use the remote control transmitter Functional elements in the home, such as interior lighting, exterior lighting, heating system, etc. from outside and from the vehicle to press out.
  • the means of identification here the vehicle key
  • the closing of the ignition circuit Conditions is therefore an abuse of the remote control device locked out. For example, if the transmitter is removed from the vehicle, so the connection to the means of identification is missing. The transmitter is then no longer able to give the release signal.
  • the invention enables the interaction and arrangement of the different To design components such as transmitters and means of identification differently.
  • the transmitter and the identification means can be designed in this way be that they can be assembled into one unit. So can for example in the case of a vehicle key as a means of identification of this in the transmitter housing can be plugged in and the query of the identification code then similar to the ignition lock of a vehicle, if necessary additionally secured through the mechanical component of the vehicle key will.
  • identification means and transmitter can also via an additional identification device, for example at a vehicle provided as part of an electronic immobilizer is.
  • This device controls the operation of the central locking system, for example of the vehicle, but also a control unit for a vehicle.
  • the identification device can also provide a so-called protection Change code, d. H. a trigger code that changes with each actuation to the Submit engine control. This idea is described in DE 42 40 596 A per se. If the release signal is thus emitted by the identification device, this enable signal can also be used as in the case of the motor control be designed as a change code and thus an additional security of the Transmission operation analogous to the additional protection of engine control unit operation cause.
  • the information about the identification of the operator can be made via a data line be transmitted to the transmitter. Alternatively, it can also be is a wireless transmission.
  • the interaction between the identification means and the identification device can also, as known per se from DE 44 11 435 A, be additionally secured.
  • the transmission of the identification code can be done in stages. Below that is not just a chronological sequence, but possibly also a conditional sequence of the two stages to understand. The latter means that, for example, the identification code is off consists of two partial codes, of which the second partial code only then consists of the identification means can be read out if the first partial code with the expected partial code matches. This allows the same for the operation of the remote control transmitter Achieve security, such as in the case of commissioning or the operation of a vehicle drive motor is present.
  • a transmitter for Triggering or operating for example, a garage door
  • the transmitter 1 is permanently installed in a vehicle. He sends a remote control signal, for example in the form of a conventional change code out.
  • a garage door that is provided with a receiver 2 is in this way operated.
  • the change code is structured in the usual way. For example, it changes with each actuation or after a defined number of actuations according to a predetermined or random pattern.
  • the output of the remote control signal by the transmitter 1 is only possible if this is an enable signal receives.
  • This signal is sent to the transmitter 1, for example, via a data line 3 fed.
  • the data line 3 starts from an identification device 4, at which is, for example, a control unit that is part of a electronic immobilizer is used.
  • the identification device interacts with an identification means 5 in the form of a key, which as described in DE 44 11 435 A, additionally one (here step by step) readable identification code contains.
  • the means of identification (key) 5 is operated by the authorized user, for example by putting it in a Introduces a vehicle ignition switch (not shown).
  • the Trigger circuit At closing the Trigger circuit is then or directly connected to triggering of the identification code by the identification device 4, which thus the recognizes authorized commissioning of the vehicle and thus an enable signal on line 3 to transmitter 1.
  • the identification device 4 As long as this authorization exists, i. H. as long as the vehicle user leaves the key 5 in the ignition lock Transmitter 1 is thus able to emit the remote control signal. This is done in usually by the vehicle user when he approaches his garage or when he leaves it. If the key 5 is removed from the ignition lock, this is recognized by the identification device 4 and the transmitter 1 communicated appropriate information. This is then no longer able to output the remote control signal to receiver 2.
  • an identification device which also the engine control device controls similar to DE 42 40 596 A, an identification device be connected to the transmitter 1 to form a spatial unit.
  • the transmission link 3 is omitted be activated that the identification means in the form of the key 5 in a Appropriate recording of the then provided housing 6 is inserted.
  • the housing 6 can be portable. By plugging in key 5 the transmitter is activated.
  • This embodiment offers the Advantage that the transmitter 1 can be activated directly using the key 5.
  • the (another) identification code can be on a Chip card can be provided, in addition or as an alternative to the identification means (Key 5) can be inserted into the identification device 4.
  • a manual one Code for example a four-digit secret number in the identification device 4 as a further identification code in the identification device 4 or be entered at a corresponding point in the housing 6.
  • the release signal for the transmitter 1 is subject to several conditions coupled, namely identification codes in the key 5 and the chip card 7 and the presence of the manual code. In this way it is a maximum security achieved.
  • the manual code makes it impossible for the transmitter 1 to issue the remote control signal, even if the unauthorized User has the key 5 and the chip card 7 and the housing 6 and brings them together in a mechanical and functional connection.

Abstract

The remote-control device provides a release signal for operation of an automobile central locking system, a garage door, or an immobiliser only when the authorisation of the user of the remote-control device has been verified. The remote-control transmitter (1) may be activated directly by insertion of a key (5) in the housing of the remote-control device and/or an identification code is read from a chip card and/or a manual identification code is entered.

Description

Die Erfindung bezieht sich auf eine Fernbedienungseinrichtung mit einem Sender für ein drahtlos übermitteltes Freigabesignal.The invention relates to a remote control device with a transmitter for a wirelessly transmitted release signal.

Derartige Einrichtungen sind in vielfältiger Anwendung im Einsatz. Sie dienen beispielsweise im Hausbereich dazu, elektronische Geräte ein- und auszuschalten. Auf dem Kraftfahrzeugsektor dienen sie beispielsweise dazu, die Zentralverriegelungsanlage zu bedienen. Auch ist es möglich, die Bewegung eines Garagentors zu steuern. Das Freigabesignal wird dabei per Funk oder Infrarot oder Ultraschall übertragen. Für sämtliche Anwendungsfälle stellt sich das Problem, daß das Freigabesignal nur durch den berechtigten Benutzer ausgelöst werden soll und es aufgrund unterschiedlicher konstruktiver und technischer Gegebenheiten nicht möglich ist, das Auslösen des Freigabesignals durch den unberechtigten Benutzer zu verhindern. So kann er beispielsweise unberechtigt in den Besitz des Senders gelangen, beispielsweise durch einen Diebstahl, und dann das Freigabesignal auslösen. Für den Anwendungsfall des Garagentors ergibt sich damit eine erhöhte Diebstahl und Einbruchgefahr, zumal das Auslösen des Freigabesignals und damit das Öffnen des Garagentors durch den unberechtigten Besitzer des Senders für den berechtigten Besitzer nicht erkennbar ist. Such devices are used in a variety of applications. They serve, for example in the house area to switch electronic devices on and off. In the motor vehicle sector, they serve, for example, the central locking system to use. It is also possible to move a garage door to control. The release signal is sent by radio or infrared or ultrasound transfer. For all applications, the problem arises that the release signal should only be triggered by the authorized user and because of it different design and technical conditions not possible is to prevent the release signal from being triggered by the unauthorized user. So, for example, he can gain possession of the transmitter without authorization, for example by theft, and then trigger the release signal. This results in increased theft for the application of the garage door and risk of break-in, especially since the release signal is triggered and thus opened of the garage door by the unauthorized owner of the transmitter for the authorized Owner is not recognizable.

Der Erfindung liegt die Aufgabe zugrunde, eine Fernbedienungseinrichtung der eingangs genannten Art zu schaffen, bei der eine unberechtigte Übermittlung des Freigabesignals weitgehend ausgeschlossen ist.The invention has for its object a remote control device to create the type mentioned, in which an unauthorized transmission of the Release signals is largely excluded.

Die Erfindung löst diese Aufgabe durch die Merkmale des Patentanspruchs 1.The invention solves this problem by the features of claim 1.

Nunmehr ist das Aufgeben des Freigabesignals an die Identifizierung des Bedieners gekoppelt. Nur wenn mit großer Sicherheit feststeht, daR es sich tatsächlich um den berechtigten Benutzer bzw. Besitzer des Senders handelt, wird es möglich, das Freigabesignal auszulösen und die Fernbedienungsfunktion zu bewirken.Now the release signal is given to the identification of the operator coupled. Only if it is certain with certainty that it really is is the authorized user or owner of the transmitter, it becomes possible trigger the release signal and effect the remote control function.

Die Ausgestaltung der Erfindung ist auf unterschiedliche Weise möglich. Ein besonderer Aspekt der Erfindung beschäftigt sich mit der Identifizierung des berechtigten Bedieners. Hierzu kann die Berechtigung anhand eines Identifizierungscodes erfolgen, der in einem Identifizierungsmittel enthalten ist. Beim Identifizierungsmittel kann es sich beispielsweise im Falle eines Fahrzeugs um den Fahrzeugschlüssel handeln. Wie in der DE 44 11 435 A beschrieben, kann der übliche mechanische Schlüssel eines Fahrzeug zusätzlich mit einem mechanischen Speicher für den Identifizierungscode versehen sein. Der Speicher wird im Zusammenhang mit der Inbetriebnahme des Fahrzeugs ausgelesen. Diese Inbetriebnahme kann beispielsweise bei Schließen des Zündstromkreises durch den hierfür vorgesehenen Fahrzeugschlüssel vorgenommen werden. Auf diese Weise ist sichergestellt, daß das Freigabesignal nur auslösbar ist, wenn der Besitzer des Fahrzeugschlüssels den Zündstromkreis geschlossen hat. Der mechanische Anteil des Fahrzeugschlüssels dient als zusätzliche Absicherung. Wird der Zündstromkreis geschlossen und der Identifizierungscode dann ausgelöst, wird der Sender von der vorliegenden Berechtigung des Benutzers informiert. Das Auslösen des Freigabesignals ist dann jederzeit und solange möglich, wie beispielsweise der Zündstromkreis des Fahrzeugs geschlossen ist. Beim Freigabesignal kann es sich, wie bereits genannt, um die Fernbedienung eines Garagentors oder aber auch um weitere Fernbedienungsfunktionen handeln. Derartige Funktionen sind zunehmend im Hausbereich im Einsatz und dienen beispielsweise dazu, über den Fernbedienungssender weitere Funktionselemente im Hausbereich, beispielsweise eine Innenbeleuchtung, eine Außenbeleuchtung, eine Heizungsanlage usw. von außen und aus dem Fahrzeug heraus zu betätigen. Durch die Kopplung an das Vorliegen des Identifizierungsmittels (hier des Fahrzeugschlüssels) in Verbindung mit dem dort vorliegenden und an weitere Bedingungen, hier dem Schließen des Zündstromkreises, gekoppelten Bedingungen ist damit ein Mißbrauch der Fernbedienungseinrichtung ausgeschlossen. Wird der Sender beispielsweise aus dem Fahrzeug entnommen, so fehlt die Verbindung zum Identifizierungsmittel. Der Sender ist dann nicht mehr in der Lage, das Freigabesignal abzugeben.The embodiment of the invention is possible in different ways. A special Aspect of the invention is concerned with the identification of the justified Operator. The authorization can be done using an identification code take place, which is contained in an identification means. With the means of identification For example, in the case of a vehicle, it can be the vehicle key act. As described in DE 44 11 435 A, the usual mechanical Keys of a vehicle additionally with a mechanical memory for be provided with the identification code. The memory is related to read out of the commissioning of the vehicle. This commissioning can, for example when closing the ignition circuit by the provided Vehicle keys are made. This ensures that the release signal can only be triggered if the owner of the vehicle key has closed the ignition circuit. The mechanical part of the vehicle key serves as additional protection. The ignition circuit is closed and then the identification code is triggered, the sender of the present Authorization of the user informed. Triggering the release signal is then possible at any time and for as long as the ignition circuit of the Vehicle is closed. As already mentioned, the release signal can the remote control of a garage door or other remote control functions act. Such functions are increasingly in the home in use and serve, for example, to use the remote control transmitter Functional elements in the home, such as interior lighting, exterior lighting, heating system, etc. from outside and from the vehicle to press out. By coupling to the presence of the means of identification (here the vehicle key) in connection with the one present there and coupled to other conditions, here the closing of the ignition circuit Conditions is therefore an abuse of the remote control device locked out. For example, if the transmitter is removed from the vehicle, so the connection to the means of identification is missing. The transmitter is then no longer able to give the release signal.

Die Erfindung ermöglicht es, das Zusammenspiel und die Anordnung der verschiedenen Komponenten, wie Sender und Identifizierungsmittel unterschiedlich zu gestalten. Der Sender und das Identifizierungsmittel können konstruktiv so ausgestaltet sein, daß sie zu einer Baueinheit zusammengefügt werden können. So kann beispielsweise im Falle eines Fahrzeugschlüssels als Identifizierungsmittel dieser in das Sendergehäuse einsteckbar sein und die Abfrage des Identifizierungscodes dann ähnlich wie im Zündschloß eines Fahrzeugs, gegebenenfalls zusätzlich gesichert durch die mechanische Komponente des Fahrzeugschlüssels, vorgenommen werden.The invention enables the interaction and arrangement of the different To design components such as transmitters and means of identification differently. The transmitter and the identification means can be designed in this way be that they can be assembled into one unit. So can for example in the case of a vehicle key as a means of identification of this in the transmitter housing can be plugged in and the query of the identification code then similar to the ignition lock of a vehicle, if necessary additionally secured through the mechanical component of the vehicle key will.

Alternativ kann das Zusammenspiel von Identifizierungsmittel und Sender auch über eine zusätzliche Identifizierungseinrichtung erfolgen, die beispielsweise bei einem Fahrzeug im Rahmen einer elektronischen Wegfahrsicherung vorgesehen ist. Diese Einrichtung steuert beispielsweise den Betrieb der Zentralverriegelung des Fahrzeugs, aber auch eines Steuergeräts für ein Fahrzeug. Zur zusätzlichen Absicherung kann dabei die Identifizierungseinrichtung auch einen sogenannten Wechselcode, d. h. einen sich bei jeder Betätigung ändernden Auslösecode an die Motorsteuerung abgeben. Dieser Gedanke ist an sich in der DE 42 40 596 A beschrieben. Wird das Freigabesignal somit von der Identifizierungseinrichtung abgegeben, so kann dieses Freigabesignal wie im Falle der Motorsteuerung ebenfalls als Wechselcode ausgestaltet sein und damit eine zusätzliche Absicherung des Sendebetriebs analog der zusätzlichen Absicherung des Motorsteuergerätebetriebs bewirken. Alternatively, the interaction of identification means and transmitter can also via an additional identification device, for example at a vehicle provided as part of an electronic immobilizer is. This device controls the operation of the central locking system, for example of the vehicle, but also a control unit for a vehicle. For additional The identification device can also provide a so-called protection Change code, d. H. a trigger code that changes with each actuation to the Submit engine control. This idea is described in DE 42 40 596 A per se. If the release signal is thus emitted by the identification device, this enable signal can also be used as in the case of the motor control be designed as a change code and thus an additional security of the Transmission operation analogous to the additional protection of engine control unit operation cause.

Die Information über die erfolgte Identifizierung des Bedieners kann über eine Datenleitung zum Sender übertragen werden. Alternativ kann es sich dabei aber auch um eine drahtlose Übertragung handeln.The information about the identification of the operator can be made via a data line be transmitted to the transmitter. Alternatively, it can also be is a wireless transmission.

Das Zusammenspiel zwischen dem Identifizierungsmittel und der Identifizierungseinrichtung kann auch, wie an sich aus der bereits genannten DE 44 11 435 A bekannt, zusätzlich abgesichert sein. Die Übermittlung des Identifizierungscodes kann stufenweise erfolgen. Darunter ist nicht nur eine zeitliche Aufeinanderfolge, sondern gegebenenfalls auch eine bedingte Aufeinanderfolge der beiden Stufen zu verstehen. Letzteres bedeutet, daß beispielsweise der Identifizierungscode aus zwei Teilcodes besteht, von denen der zweite Teilcode nur dann aus dem Identifizierungsmittel auslesbar ist, wenn der erste Teilcode mit dem erwarteten Teilcode übereinstimmt. Dadurch läßt sich für den Betrieb des Fernbedienungssenders dieselbe Sicherheit erreichen, wie sie beispielsweise im Falle der Inbetriebnahme bzw. des Betriebs eines Fahrzeug-Antriebsmotors vorliegt.The interaction between the identification means and the identification device can also, as known per se from DE 44 11 435 A, be additionally secured. The transmission of the identification code can be done in stages. Below that is not just a chronological sequence, but possibly also a conditional sequence of the two stages to understand. The latter means that, for example, the identification code is off consists of two partial codes, of which the second partial code only then consists of the identification means can be read out if the first partial code with the expected partial code matches. This allows the same for the operation of the remote control transmitter Achieve security, such as in the case of commissioning or the operation of a vehicle drive motor is present.

Das Zusammenspiel der verschiedenen Komponenten, die im Rahmen der Erfindung verwendet werden, ist anhand des dargestellten Diagramms weiter erläutert. Es sei der Anwendungsfall eines Fahrzeugs betrachtet, bei dem ein Sender zum Auslösen bzw. Bedienen beispielsweise eines Garagentors vorgesehen ist. Üblicherweise befindet sich der Sender 1 fest in einem Fahrzeug eingebaut. Er sendet ein Fernbedienungssignal, beispielsweise in Form eines üblichen Wechselcodes aus. Ein Garagentor, das mit einem Empfänger 2 versehen ist, wird auf diese Weise betätigt. Der Wechselcode ist in üblicher Weise aufgebaut. Er ändert sich beispielsweise bei jeder Betätigung oder aber nach einer definierten Anzahl von Betätigungen nach einem vorgegebenen bzw. zufälligen Muster.The interaction of the various components within the scope of the invention are used, is further explained using the diagram shown. Let us consider the application of a vehicle in which a transmitter for Triggering or operating, for example, a garage door is provided. Usually the transmitter 1 is permanently installed in a vehicle. He sends a remote control signal, for example in the form of a conventional change code out. A garage door that is provided with a receiver 2 is in this way operated. The change code is structured in the usual way. For example, it changes with each actuation or after a defined number of actuations according to a predetermined or random pattern.

Wesentlich im Rahmen der Erfindung ist dabei, daß die Ausgabe des Fernbedienungssignals durch den Sender 1 nur möglich ist, wenn dieser ein Freigabesignal erhält. Dieses Signal wird beispielsweise über eine Datenleitung 3 dem Sender 1 zugeführt. Die Datenleitung 3 geht von einer Identifizierungseinrichtung 4 aus, bei dem es sich beispielsweise um ein Steuergerät handelt, das im Rahmen einer elektronischen Wegfahrsicherung verwendet wird. Die Identifizierungseinrichtung steht in Wechselwirkung mit einem Identifizierungsmittel 5 in Form eines Schlüssels, der wie in der DE 44 11 435 A beschrieben, zusätzlich einen (hier stufenweise) auslesbaren Identifizierungscode enthält. Das Identifizierungsmittel (Schlüssel) 5 wird durch den berechtigten Benutzer betätigt, beispielsweise indem er es in ein Zündschloß eines Fahrzeugs (nicht dargestellt) einführt. An das Schließen des Zündstromkreises anschließend bzw. unmittelbar damit verbunden ist das Auslösen des Identifizierungscodes durch die Identifizierungseinrichtung 4, die damit die berechtigte Inbetriebnahme des Fahrzeugs erkennt und damit ein Freigabesignal über die Leitung 3 an den Sender 1 abgibt. Solange diese Berechtigung vorliegt, d. h. solange der Fahrzeugbenutzer den Schlüssel 5 im Zündschloß beläßt, ist der Sender 1 damit in der Lage, das Fernbedienungssignal abzugeben. Dies erfolgt in der Regel durch den Fahrzeugbenutzer dann, wenn er sich seiner Garage nähert bzw. wenn er diese verläßt. Wird der Schlüssel 5 aus dem Zündschloß entnommen, so wird dies durch die Identifizierungseinrichtung 4 erkannt und dem Sender 1 eine entsprechende Information mitgeteilt. Dieser ist dann nicht mehr in der Lage, das Fernbedienungssignal zum Empfänger 2 auszugeben.It is essential in the context of the invention that the output of the remote control signal by the transmitter 1 is only possible if this is an enable signal receives. This signal is sent to the transmitter 1, for example, via a data line 3 fed. The data line 3 starts from an identification device 4, at which is, for example, a control unit that is part of a electronic immobilizer is used. The identification device interacts with an identification means 5 in the form of a key, which as described in DE 44 11 435 A, additionally one (here step by step) readable identification code contains. The means of identification (key) 5 is operated by the authorized user, for example by putting it in a Introduces a vehicle ignition switch (not shown). At closing the Trigger circuit is then or directly connected to triggering of the identification code by the identification device 4, which thus the recognizes authorized commissioning of the vehicle and thus an enable signal on line 3 to transmitter 1. As long as this authorization exists, i. H. as long as the vehicle user leaves the key 5 in the ignition lock Transmitter 1 is thus able to emit the remote control signal. This is done in usually by the vehicle user when he approaches his garage or when he leaves it. If the key 5 is removed from the ignition lock, this is recognized by the identification device 4 and the transmitter 1 communicated appropriate information. This is then no longer able to output the remote control signal to receiver 2.

Die verschiedenen Ausgestaltung der Erfindung sind in der Zeichnung teilweise angedeutet. So kann anstelle der Identifizierungseinrichtung 4, die auch die Motorsteuereinrichtung analog DE 42 40 596 A steuert, eine Identifizierungseinrichtung mit dem Sender 1 zu einer räumlichen Baueinheit verbunden sein. In diesem Fall entfällt die Übertragungsstrecke 3. Der Sender kann beispielsweise dadurch aktiviert werden, daß das Identifizierungsmittel in Form des Schlüssels 5 in eine entsprechende Aufnahme des dann vorgesehenen Gehäuses 6 eingeführt wird.The various embodiments of the invention are partial in the drawing indicated. So instead of the identification device 4, which also the engine control device controls similar to DE 42 40 596 A, an identification device be connected to the transmitter 1 to form a spatial unit. In this In this case, the transmission link 3 is omitted be activated that the identification means in the form of the key 5 in a Appropriate recording of the then provided housing 6 is inserted.

Bei dieser Ausführungsform kann das Gehäuse 6 tragbar sein. Durch Einstecken des Schlüssels 5 wird der Sender aktiviert. Diese Ausführungsform bietet den Vorteil, daß mit Hilfe des Schlüssels 5 der Sender 1 direkt aktiviert werden kann.In this embodiment, the housing 6 can be portable. By plugging in key 5 the transmitter is activated. This embodiment offers the Advantage that the transmitter 1 can be activated directly using the key 5.

Eine weitere Verfeinerung der Erfindung ist ebenfalls dargestellt. Zusätzlich oder alternativ zum Schlüssel 5 kann der (ein weiterer) Identifizierungcode auf einer Chipcard vorgesehen sein, der zusätzlich oder alternativ zum Identifizierungsmittel (Schlüssel 5) in die Identifizierungseinrichtung 4 einführbar ist. Auch kann ein manueller Code, beispielsweise eine vierstellige Geheimzahl in die Identifizierungseinrichtung 4 als weiterer Identifizierungscode in die Identifizierungseinrichtung 4 bzw. an entsprechender Stelle des Gehäuses 6 eingegeben werden. Auf diese Weise ist die Abgabe des Freigabesignals für den Sender 1 an mehrere Bedingungen gekoppelt, nämlich Identifizierungscodes im Schlüssel 5 und der Chipcard 7 sowie das Vorliegen des manuellen Codes. Auf diese Weise ist ein Höchstmaß an Sicherheit erreicht. Durch den manuellen Code wird es unmöglich, den Sender 1 zur Abgabe des Fernbedienungssignal zu veranlassen, auch wenn der unberechtigte Benutzer den Schlüssel 5 und die Chipcard 7 sowie das Gehäuse 6 besitzt und miteinander in mechanischer und funktionaler Verbindung bringt.A further refinement of the invention is also shown. In addition or as an alternative to key 5, the (another) identification code can be on a Chip card can be provided, in addition or as an alternative to the identification means (Key 5) can be inserted into the identification device 4. Even a manual one Code, for example a four-digit secret number in the identification device 4 as a further identification code in the identification device 4 or be entered at a corresponding point in the housing 6. To this The release signal for the transmitter 1 is subject to several conditions coupled, namely identification codes in the key 5 and the chip card 7 and the presence of the manual code. In this way it is a maximum security achieved. The manual code makes it impossible for the transmitter 1 to issue the remote control signal, even if the unauthorized User has the key 5 and the chip card 7 and the housing 6 and brings them together in a mechanical and functional connection.

Claims (10)

Fernbedienungseinrichtung mit einem Sender für ein drahtlos übermitteltes Freigabesignal, dadurch gekennzeichnet, daß das Freigabesignal erst auslösbar ist, wenn der Bediener als berechtigt erkannt ist.Remote control device with a transmitter for a wirelessly transmitted release signal, characterized in that the release signal can only be triggered when the operator is recognized as authorized. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Berechtigung anhand eines einen Identifizierungscode enthaltenden Indentifizierungsmittels erkennbar ist.Device according to claim 1, characterized in that the authorization is recognizable on the basis of an identification means containing an identification code. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Identifizierungsmittel vom Sender abnehmbar ist.Device according to claim 2, characterized in that the identification means can be removed from the transmitter. Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Berechtigung in einer Identifizierungseinrichtung erkannt wird, die räumlich getrennt vom Sender angeordnet ist.Device according to one of claims 1 to 3, characterized in that the authorization is recognized in an identification device which is arranged spatially separate from the transmitter. Einrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Berechtigung in einer Identifizierungseinrichtung erkannt wird, die mit dem Sender zu einer Baueinheit vereinigt ist. Device according to one of claims 1 to 3, characterized in that the authorization is recognized in an identification device which is combined with the transmitter to form a structural unit. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Information über die erfolgreiche Identifizierung über eine Datenleitung zum Sender übertragen wird.Device according to one of the preceding claims, characterized in that the information about the successful identification is transmitted to the transmitter via a data line. Einrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß das Identifizierungsmittel ein Schlüssel für eine Zugangskontrolleinrichtung ist.Device according to one of claims 2 to 6, characterized in that the identification means is a key for an access control device. Einrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Schlüssel einen aus zwei Teilcodesignalen bestehenden Identifzierungscode enthält.Device according to claim 7, characterized in that the key contains an identification code consisting of two partial code signals. Einrichtung nach Anspruch 8, dadurch gekennzeichnet, daß der Identifizierungscode stufenweise auslesbar ist.Device according to claim 8, characterized in that the identification code can be read out step by step. Einrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der zweite Teilcode erst auslösbar ist, wenn der erste Teilcode als zutreffend erkannt wird.Device according to claim 9, characterized in that the second partial code can only be triggered when the first partial code is recognized as being correct.
EP98105827A 1997-04-02 1998-03-31 Remote control with a wireless transmitter transferring an identification signal Withdrawn EP0869465A3 (en)

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DE1997113607 DE19713607A1 (en) 1997-04-02 1997-04-02 Remote control device with a transmitter for a wirelessly transmitted release signal
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