EP0153499A2 - Control device - Google Patents

Control device Download PDF

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Publication number
EP0153499A2
EP0153499A2 EP84116366A EP84116366A EP0153499A2 EP 0153499 A2 EP0153499 A2 EP 0153499A2 EP 84116366 A EP84116366 A EP 84116366A EP 84116366 A EP84116366 A EP 84116366A EP 0153499 A2 EP0153499 A2 EP 0153499A2
Authority
EP
European Patent Office
Prior art keywords
receiver
control device
information
coded information
transmitter
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.)
Granted
Application number
EP84116366A
Other languages
German (de)
French (fr)
Other versions
EP0153499B1 (en
EP0153499A3 (en
Inventor
Bernd Rumpf
Martin Tibken
Andreas-Assis Timur
Helmut Pfalzgraf
Klaus-Peter Rathmann
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Mannesmann VDO AG
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Mannesmann VDO AG
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Publication date
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Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0153499A2 publication Critical patent/EP0153499A2/en
Publication of EP0153499A3 publication Critical patent/EP0153499A3/en
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Classifications

    • 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
    • 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
    • G07C2009/00452—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 by the lock
    • 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
    • G07C2009/00468—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 after n uses
    • 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
    • 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
    • G07C2009/00785—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 by light

Definitions

  • the invention relates to a control device for locking and / or unlocking a safety device, in particular a motor vehicle locking device, with a transmission device supplied by a power source, which has a code generator for generating coded information stored in it and a radiator of the coded information, with a from a second power source receiving device having receiving means for receiving the encoded information, a memory in which the encoded information is stored, and a comparator for comparing the received information with the stored information, the receiving device in the event of the match of this information a control signal can be output to the safety device.
  • Control devices of this type are known in particular as door locking of motor vehicle doors and already have a high level of security against unauthorized opening of the motor vehicle doors.
  • the object of the invention is to provide a control device according to the preamble, which prevents unauthorized unlocking of the safety device with high security.
  • the receiver device has a signal generator for generating further coded information and the further coded information can be stored in the memory of the receiver device and can be emitted by a transmitter of the receiver device, and in that the transmitter device encodes a receiver for receiving the further coded information Has information and the further coded information can be stored in the memory of the transmitting device while deleting the first coded information.
  • This configuration allows the coded information to be changed as often as desired, so that even if the coded information is recorded, a later unauthorized opening of the security device is prevented if a recoding has been carried out.
  • the transcoding process of both the receiver device and the transmitter device takes place automatically after it has been initiated.
  • the signal generator is preferably an oscillator connected to the receiver device. Absolute security against a reconstruction of the recoded information is achieved in that a random pulse sequence can be generated by the oscillator.
  • control device can be constructed with an extremely small space requirement, which is particularly important when used in motor vehicles, since there is only little installation space available there.
  • the generation, transmission and storage of the further coded information can preferably be switched on by a switch of the receiver device.
  • the transmitter can be switched on by a switch. To ensure that the information broadcast is always safe and full are constantly received, the transmission of the first coded information by the transmitter device and / or the transmission of the further coded information by the receiver device takes place in a multiple interval.
  • the power source of the receiver device is preferably the battery of the motor vehicle.
  • the transmitter device can be location-independent of the receiver device and is preferably arranged in an ignition key of the motor vehicle. This is easily possible when using a microprocessor, without the construction volume being significantly larger than with conventional ignition keys. In addition to the ignition key, there is no need for the driver to carry any other parts with him.
  • the power source of the transmitter device is a DC power source, e.g. As a cell, it can be easily accommodated in an ignition key and is easily replaceable by the driver.
  • the receiver device has a second transmitter, from which information can be emitted after the control signal of the receiver device has been sent to the safety device, and if the information of the second transmitter can be recorded by a receiver of the transmitter device and a signal device can be controlled by the receiver, the operator is always on Signal given when the receiver device has actually correctly captured the encoded information.
  • the signal device is preferably a tone generator. Such a signal device is advantageous when used on motor vehicle doors, since no operating noises occur with today's door locks are heard and thus the operator does not know after actuation of the transmitting device whether the safety device has actually been activated.
  • first and second transmitters are infrared elements.
  • the emitter and / or the first transmitter and / or the second transmitter can be a light-emitting diode.
  • the receiving means and / or the first receiver and / or the second receiver are preferably a phototransistor.
  • control device described can be used both to initiate an opening process and to initiate a closing process. However, it is also possible that an unchangeable code signal is used for the closing process.
  • a particular advantage of the control device is that it is not necessary to already enter coded information. Coding is carried out solely by switching on the receiver device for generating and transmitting and storing the coded information, and thereby storing coded information both itself and the transmitting device. Thus, only identical structural units are required for the transmitter device as well as for the receiver device, which means an exchange as well as the bearing considerably simplified and cheaper. If, for example, an ignition key provided with a transmitter device is lost, only a new ignition key needs to be coded by actuating the ignition switch.
  • the control device shown has a transmitting device 1 and a receiving device 2.
  • the receiver device 2 can be arranged in a motor vehicle for controlling a motor vehicle locking device and the transmission device can be arranged in an ignition key of the motor vehicle.
  • the transmission device 1 has a microprocessor 3, which is connected to a quartz crystal 4, a tone generator 5 and a switch 6 designed as a push-button switch for switching on the transmission device 1.
  • the power supply is provided by a direct current source 7.
  • An output 8 of the microprocessor 3 leads via an amplifier 9 to a light-emitting diode forming an emitter 10.
  • a receiver 11 formed by a phototransistor is connected via an amplifier 12 to a coding input 13 of the microprocessor 3. Furthermore, the receiver 11 is also connected to an activation input 14 of the microprocessor 3. This activation input 14 can also be controlled by the switch 6 via a diode 15.
  • the receiver device 2 also has a microprocessor 16 with a quartz crystal 17.
  • the microprocessor 16 is connected to the power source of the motor vehicle (terminal 30) via the connection 18.
  • the connection 19 is connected to the ignition switch (terminal 15) of the motor vehicle, so that the microprocessor 16 is actuated each time the vehicle is started.
  • the inputs 20 of the microprocessor 16 are each assigned to a locking device arranged in a door of the motor vehicle and can be used by mechanical actuation by means of a key to control the microprocessor 16 if the normal function of the control device is disturbed.
  • An oscillator 22 generating a random pulse sequence is connected to a further input 21 of the microprocessor 16.
  • a transmitter 24 formed by a light-emitting diode is connected to an output of the microprocessor 16 via an amplifier 23.
  • another transmitter 26, which is formed by a light-emitting diode is also connected to an output of the microprocessor 16 via an amplifier 25.
  • Receiving means 27 formed by a phototransistor are connected via an amplifier 28 to an input of the microprocessor 16.
  • Each of the three outputs 29 of the microprocessor 16 leads to a locking device for the central locking of the motor vehicle and transmits the control signal emitted by the microprocessor 16.
  • the function of the Steuerv Q rtreu ' is as follows.
  • the microprocessor 3 of the transmitting device 1, which is normally not activated, is acted upon by closing the switch 6 both via the diode 15 with an activation signal and also controlled to emit the coded information stored in it via the emitter 10.
  • This coded information is received by the receiving means 27 of the receiver device 2 and is increasingly supplied to the microprocessor 16.
  • the comparator contained in the microprocessor 16 compares the received information with the coded information stored in the memory of the microprocessor 16. If the received information matches the stored information, the microprocessor 16 outputs an acknowledgment information via the amplifier, which is emitted by the transmitter 24.
  • the microprocessor 16 emits a control signal via the outputs 29, by means of which the locking devices (not shown) are controlled in the opening or closing direction.
  • the microprocessor 3 controls the tone generator 5 to emit a tone. This tone shows the operator that the entire control process was carried out properly.
  • the microprocessor 16 is controlled via the connection 19 in such a way that a random pulse sequence is fed to it from the oscillator 22, which the microprocessor 16 stores in its memory while deleting the previously stored coded information.
  • this random pulse sequence is fed via the amplifier 25 to the transmitter 26, which emits this coded information.
  • This new coded E information is received by the receiver 11 of the transmitting device 1, which thereby both activates the microprocessor 3 and also feeds the coded information to the microprocessor 3 via the amplifier 13. This now stores the new coded information by deleting the previously stored coded information.
  • the microprocessor 3 is only activated when it is actually performing a function, the power consumption of the transmitting device is kept very low.

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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

1. Control device for locking and/or unlocking a security apparatus, especially a motor vehicle latch apparatus, with a transmitting device which is supplied by a current source and which has a code generator for producing coded information stored in the latter and an emitter for emitting the coded information, with a receiver device which is supplied by a second current source and which has reception means for receiving the coded information, a store in which the coded information is stored, and a comparator for comparing the received information with the stored information, and, in the event of the correspondence of these information items, the receiver device is adapted to delivery an operating signal to the security apparatus, characterised in that the receiver device (2) has a signal generator for producing further coded information, and the further coded information is inputtable into the store of the receiver device (2), and is emitting by a transmitter (26) of the receiver device (2), and that the transmitting device (1) has a receiver (11) for receiving the further coded information, and the further coded information is store in the store of the transmitting device (1), with cancellation of the first coded information.

Description

Die Erfindung betrifft eine Steuervorrichtung zum Ver- und/oder Entriegeln einer Sicherheitseinrichtung, insbesondere einer KraftfahrzeugschlieBvor-Tichtung, mit einer von einer Stromquelle versorgten Sendevorrichtung, die einen Codeerzeuger zum Erzeugen einer in ihm gespeicherten codierten Information und einen Ausstrahler der codierten Information besitzt, mit einer von einer zweiten Stromquelle versorgten Empfängervorrichtung, die Empfangsmittel zum Empfangen der codierten Information, einen Speicher, in dem die codierte Information gespeichert ist, und einen Vergleicher zum Vergleich der empfangenen Information mit der gespeicherten Information aufweist, wobei von der Empfängervorrichtung im Fall der Übereinstimmung dieser Informationen ein Ansteuersignal an die Sicherheitseinrichtung abgebbar ist.The invention relates to a control device for locking and / or unlocking a safety device, in particular a motor vehicle locking device, with a transmission device supplied by a power source, which has a code generator for generating coded information stored in it and a radiator of the coded information, with a from a second power source receiving device having receiving means for receiving the encoded information, a memory in which the encoded information is stored, and a comparator for comparing the received information with the stored information, the receiving device in the event of the match of this information a control signal can be output to the safety device.

Derartige Steuervorrichtungen sind insbesondere als Türverriegelung von Kraftfahrzeugtüren bekannt und besitzen bereits eine hohe Sicherheit gegen unbefugtes Öffnen der Kraftfahrzeugtüren.Control devices of this type are known in particular as door locking of motor vehicle doors and already have a high level of security against unauthorized opening of the motor vehicle doors.

Es besteht aber die Möglichkeit mit einem Empfangsgerät während eines Öffnungsvorganges die codierte Information aufzunehmen und durch späteres Senden dieser Information das abgestellte und verschlossene Kraftfahrzeug problemlos und ohne Beschädigung zu öffnen.However, it is possible to record the coded information with a receiving device during an opening process and to open the parked and locked motor vehicle easily and without damage by later sending this information.

Aufgabe der Erfindung ist es, eine Steuervorrichtung nach dem Oberbegriff zu schaffen, die mit hoher Sicherheit ein unbefugtes Entriegeln der Sicherheitseinrichtung verhindert.The object of the invention is to provide a control device according to the preamble, which prevents unauthorized unlocking of the safety device with high security.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daB die Empfängervorrichtung einen Signalerzeuger zur Erzeugung einer weiteren codierten Information aufweist und die weitere codierte Information in den Speicher der Empfängervorrichtung einspeicherbar sowie von einem Sender der Empfängervorrichtung ausstrahlhar ist, und daß die Sendevorrichtung einen Empfänger zum Empfangen der weiteren codierten Information besitzt und die weitere codierte Information unter Löschung der ersten codierten Information im Speicher der Sendevorrichtung speicherbar ist.This object is achieved according to the invention in that the receiver device has a signal generator for generating further coded information and the further coded information can be stored in the memory of the receiver device and can be emitted by a transmitter of the receiver device, and in that the transmitter device encodes a receiver for receiving the further coded information Has information and the further coded information can be stored in the memory of the transmitting device while deleting the first coded information.

Durch diese Ausbildung kann die codierte Information beliebig oft geändert werben, so daB auch bei Aufnehmen der codierten Information ein späteres unbefugtes Öffnen der Sicherheitseinrichtung verhindert wird, wenn eine Umcodierung durchgeführt wurde. Dabei erfolgt der Umcodierungsvorgang sowohl der Empfängervorrichtung als auch der Sendevorrichtung selbständig, nachdem er einmal eingeleitet wurde.This configuration allows the coded information to be changed as often as desired, so that even if the coded information is recorded, a later unauthorized opening of the security device is prevented if a recoding has been carried out. The transcoding process of both the receiver device and the transmitter device takes place automatically after it has been initiated.

Somit wird bei einer schlüssellosen Sicherheitseinrichtung die Sicherheit gegen unbefugtes Öffnen erheblich erhöht.With a keyless security device, security against unauthorized opening is thus considerably increased.

Der Signalerzeuger ist vorzugsweise ein mit der Empfängervorrichtung verbundener Oszillator. Eine absolute Sicherheit gegen ein Nachvollziehen der umcodierten Information wird dadurch erreicht, daß durch den Oszillator eine Zufallsimpulsfolge erzeugbar ist.The signal generator is preferably an oscillator connected to the receiver device. Absolute security against a reconstruction of the recoded information is achieved in that a random pulse sequence can be generated by the oscillator.

Damit ist die Sicherheit so hoch, daß selbst die Person, die dieses System entwickelt hat, nicht in der Lage ist, die umcodierte Steuervorrichtung zur Öffnung der Sicherheitseinrichtung zu betätigen, da die Impulsfolge keinerlei Gesetzmäßigkeit unterliegt.The security is so high that even the person who developed this system is unable to operate the transcoded control device to open the safety device, since the pulse sequence is not subject to any law.

Ist der Codeerzeuger der Sendevorrichtung und/oder Vergleicher und Speicher der Empfängervorrichtung ein Mikroprozessor, so kann die Steuervorrichtung mit äußerst geringem Raumbedarf aufgebaut werden, was insbesondere bei Anwendung in Kraftfahrzeugen von Wichtigkeit ist, da dort nur wenig Einbauraum zur Verfügung steht.If the code generator of the transmitting device and / or comparator and memory of the receiving device is a microprocessor, the control device can be constructed with an extremely small space requirement, which is particularly important when used in motor vehicles, since there is only little installation space available there.

Die Erzeugung und Übertragung sowie Speicherung der weiteren codierten Information ist vorzugsweise durch einen Schalter der Empfängervorrichtung einschaltbar.The generation, transmission and storage of the further coded information can preferably be switched on by a switch of the receiver device.

Ist der Schalter dabei der Zündschalter (Klemme 15) des Kraftfahrzeugs, so erfolgt automatisch bei jedem Startvorgang eine völlig neue Codierung der Information, die in der Steuervorrichtung gespeichert wird.If the switch is the ignition switch (terminal 15) of the motor vehicle, a completely new coding of the information which is stored in the control device takes place automatically with each starting process.

Die Sendevorrichtung kann durch einen Schalter einschaltbar sein. Um sicherzustellen, daß die ausgestrahlten Informationen auch immer sicher und vollständig empfangen werden, erfolgt die Ausstrahlung der ersten codierten Information durch die Sendevorrichtung und/oder die Austrahlung der weiteren codierten Information durch die Empfängervorrichtung in einem Mehrfachintervall.The transmitter can be switched on by a switch. To ensure that the information broadcast is always safe and full are constantly received, the transmission of the first coded information by the transmitter device and / or the transmission of the further coded information by the receiver device takes place in a multiple interval.

Vorzugsweise ist die Stromquelle der Empfängervorrichtung die Batterie des Kraftfahrzeuges.The power source of the receiver device is preferably the battery of the motor vehicle.

Die Sendevorrichtung kann von der Empfängervorrichtung ortsunabhängig sein und ist vorzugsweise in einem Zündschlüssel des Kraftfahrzeugs angeordnet. Dies ist bei Verwendung eines Mikroprozessors gut möglich, ohne daB das Bauvolumen wesentlich größer ist, als bei herkömmlichen Zündschlüsseln. Außerdem braucht auf diese Weise neben dem Zündschlüssel kein weiteres Teil vom Autofahrer mitgeführt werden.The transmitter device can be location-independent of the receiver device and is preferably arranged in an ignition key of the motor vehicle. This is easily possible when using a microprocessor, without the construction volume being significantly larger than with conventional ignition keys. In addition to the ignition key, there is no need for the driver to carry any other parts with him.

Die Stromquelle der Sendevorrichtung ist eine Gleichstromquelle, die z.B. als Zelle gut in einem Zündschlüssel unterzubringen und von dem Autofahrer auch leicht auswechselbar ist.The power source of the transmitter device is a DC power source, e.g. As a cell, it can be easily accommodated in an ignition key and is easily replaceable by the driver.

Weist die Empfängervorrichtung einen zweiten Sender auf, von dem nach Abgabe des Ansteuersignals der Empfängervorrichtung an die Sicherheitseinrichtung eine Information ausstrahlbar ist und ist die Information des zweiten Senders von einem Empfänger der Sendevorrichtung erfaBbar und von dem Empfänger eine Signaleinrichtung ansteuerbar, so wird der Bedienungsperson immer ein Signal gegeben, wenn die Empfängervorrichtung die codierte Information tatsächlich korrekt erfaßt hat.If the receiver device has a second transmitter, from which information can be emitted after the control signal of the receiver device has been sent to the safety device, and if the information of the second transmitter can be recorded by a receiver of the transmitter device and a signal device can be controlled by the receiver, the operator is always on Signal given when the receiver device has actually correctly captured the encoded information.

Die Signaleinrichtung ist dabei vorzugsweise ein Tongenerator. Eine derartige Signaleinrichtung ist bei der Anwendung an Kraftfahrzeugtüren von Vorteil, da bei heutigen Türverriegelungen keine Betätigungsgeräusche zu hören sind und somit die Bedienungsperson nach Betätigung der Sendevorrichtung nicht weiß, ob die Sicherheitseinrichtung tatsächlich angesteuert wurde.The signal device is preferably a tone generator. Such a signal device is advantageous when used on motor vehicle doors, since no operating noises occur with today's door locks are heard and thus the operator does not know after actuation of the transmitting device whether the safety device has actually been activated.

Im Prinzip können die verschiedensten bekannten Sende-und Empfangseinrichtungen und-methoden angewandt werden. Besonders günstig ist es, wenn Ausstrahler,erster und zweiter Sender sowie Empfangsmittel und erster und zweiter Empfänger Infrarotelemente sind.In principle, the most varied of known transmitting and receiving devices and methods can be used. It is particularly favorable if emitters, first and second transmitters as well as receiving means and first and second receivers are infrared elements.

Der Ausstrahler und/oder der erste Sender und/oder der zweite Sender kann dabei eine Leuchtdiode sein.The emitter and / or the first transmitter and / or the second transmitter can be a light-emitting diode.

Die Empfangsmittel und/oder der erste Empfänger und/ oder der zweite Empfänger sind vorzugsweise ein Fototransistor.The receiving means and / or the first receiver and / or the second receiver are preferably a phototransistor.

Die beschriebene Steuervorrichtung kann sowohl zur Einleitung eines Öffnungsvorgangs als auch zur Einleitung eines Schließvorgangs benutzt werden. Es ist aber auch möglich, daB für den Schließvorgang ein unveränderbares Codesignal verwandt wird.The control device described can be used both to initiate an opening process and to initiate a closing process. However, it is also possible that an unchangeable code signal is used for the closing process.

Ein besonderer Vorteil der Steuervorrichtung besteht darin, daß es nicht erforderlich ist, eine codierte Information bereits einzugeben. Eine Codierung erfolgt allein dadurch, das die Empfängervorrichtung zur Erzeugung und Übertragung sowie Speicherung der codierten Information eingeschaltet wird und dadurch sich selbst als auch der Sendevorrichtung eine codierte Information einspeichert. Es sind somit für die Sendevorrichtung als auch für die Empfängervorrichtung jeweils nur identische Baueinheiten erforderlich, was einen Austausch als auch die Lagerhalterung erheblich vereinfacht und verbilligt. Ist z.B. ein mit einer Sendevorrichtung versehener Zündschlüssel verlorengegangen, braucht nur ein neuer Zündschlüssel durch Betätigung des Zündschalters codiert werden.A particular advantage of the control device is that it is not necessary to already enter coded information. Coding is carried out solely by switching on the receiver device for generating and transmitting and storing the coded information, and thereby storing coded information both itself and the transmitting device. Thus, only identical structural units are required for the transmitter device as well as for the receiver device, which means an exchange as well as the bearing considerably simplified and cheaper. If, for example, an ignition key provided with a transmitter device is lost, only a new ignition key needs to be coded by actuating the ignition switch.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and will be described in more detail below.

Die einzige Figur der Zeichnung zeigt einen Schaltplan einer erfindungsgemäBen Steuervorrichtung. Die dargestellte Steuervorrichtung weist eine Sendevorrichtung 1 und eine Empfängervorrichtung 2 auf. Dabei kann die Empfängervorrichtung 2 in einem Kraftfahrzeug zur Ansteuerung einer KraftfahrzeugschlieBvorrichtung und die Sendevorrichtung in einem Zündschlüssel des Kraftfahrzeuges angeordnet sein. Die Sendevorrichtung 1 weist einen Mikroprozessor 3 auf, der mit einem Schwingquarz 4,einem Tongenerator 5 sowie einem als TastschaltEr ausgebildeten Schalter 6 zum Einschalten der Sendevorrichtung 1 verbunden ist. Die Stromversorgung erfolgt durch eine Gleichstromquelle 7. Ein Ausgang 8 des Mikroprozessors 3 führt über einen Verstärker 9 zu einer einen Ausstrahler 10 bildenden Leuchtdiode.The only figure in the drawing shows a circuit diagram of a control device according to the invention. The control device shown has a transmitting device 1 and a receiving device 2. The receiver device 2 can be arranged in a motor vehicle for controlling a motor vehicle locking device and the transmission device can be arranged in an ignition key of the motor vehicle. The transmission device 1 has a microprocessor 3, which is connected to a quartz crystal 4, a tone generator 5 and a switch 6 designed as a push-button switch for switching on the transmission device 1. The power supply is provided by a direct current source 7. An output 8 of the microprocessor 3 leads via an amplifier 9 to a light-emitting diode forming an emitter 10.

Ein durch einen Fototransistor gebildeter Empfänger 11 ist über einen Verstärker 12 mit einem Codiereingang 13 des Mikroprozessors 3 verbunden. Weiterhin ist der Empfänger 11 auch mit einem Aktivierungseingang 14 des Mikroprozessors 3 verbunden. Dieser Aktivierungseingang 14 kann außerdem über eine Diode 15 von dem Schalter 6 angesteuert werden.A receiver 11 formed by a phototransistor is connected via an amplifier 12 to a coding input 13 of the microprocessor 3. Furthermore, the receiver 11 is also connected to an activation input 14 of the microprocessor 3. This activation input 14 can also be controlled by the switch 6 via a diode 15.

Die Empfängervorrichtung 2 weist ebenfalls einen Mikroprozessor 16 mit einem Schwingquarz 17 auf. Über den Anschluß 18 ist der Mikroprozessor 16 an die Stromquelle des Kraftfahrzeugs (Klemme 30) angeschlossen. Der Anschluß 19 ist mit dem Zündschalter (Klemme 15) des Kraftfahrzeugs verbunden, so daB bei jedem Startvorgang eine Ansteuerung des Mikroprozessors 16 erfolgt.The receiver device 2 also has a microprocessor 16 with a quartz crystal 17. The microprocessor 16 is connected to the power source of the motor vehicle (terminal 30) via the connection 18. The connection 19 is connected to the ignition switch (terminal 15) of the motor vehicle, so that the microprocessor 16 is actuated each time the vehicle is started.

Die Eingänge 20 des Mikroprozessors 16 sind jeweils einer in einer Tür des Kraftfahrzeugs angeordneten Schließvorrichtung zugeordnet und können durch mechanische Betätigung mittels eines Schlüssels zu einer Ansteuerung des Mikroprozessors 16 benutzt werden, wenn die Normalfunktion der Steuervorrichtung gestört ist.The inputs 20 of the microprocessor 16 are each assigned to a locking device arranged in a door of the motor vehicle and can be used by mechanical actuation by means of a key to control the microprocessor 16 if the normal function of the control device is disturbed.

An einem weiteren Eingang 21 des Mikroprozessors 16 ist ein eine Zufallsimpulsfolge erzeugender Oszillator 22 angeschlossen. Über einen Verstärker 23 ist ein durch eine Leuchtdiode gebildeter Sender 24 an einen Ausgang des Mikroprozessors 16 angeschlossen. Weiterhin ist ebenfalls über einen Verstärker 25 ein durch eine Leuchtdiode gebildeter weiterer Sender 26 an einen Ausgang des Mikroprozessors 16 angeschlossen.An oscillator 22 generating a random pulse sequence is connected to a further input 21 of the microprocessor 16. A transmitter 24 formed by a light-emitting diode is connected to an output of the microprocessor 16 via an amplifier 23. Furthermore, another transmitter 26, which is formed by a light-emitting diode, is also connected to an output of the microprocessor 16 via an amplifier 25.

Durch einen Fototransistor gebildete Empfangsmittel 27 sind über einen Verstärker 28 mit einem Eingang des Mikroprozessors 16 verbunden.Receiving means 27 formed by a phototransistor are connected via an amplifier 28 to an input of the microprocessor 16.

Jeder der drei Ausgänge 29 des Mikroprozessors 16 führt zu einer Schließvorrichtung der Zentralverriegelung des Kraftfahrzeugs und überträgt das vom Mikroprozessor 16 abgegebene Ansteuersignal.Each of the three outputs 29 of the microprocessor 16 leads to a locking device for the central locking of the motor vehicle and transmits the control signal emitted by the microprocessor 16.

Die Funktion der SteuervQrrichtung' ist folgende. Der im Normalfall nicht aktivierte Mikroprozessor 3 der Sendevorrichtung 1 wird durch Schließen des Schalters 6 sowohl über die Diode 15 mit einem Aktivierungssignal beaufschlagtals auch zur Abgabe der in ihm gespeicherten codierten Information über den Ausstrahler 10 angesteuert.The function of the Steuerv Q rrichtung 'is as follows. The microprocessor 3 of the transmitting device 1, which is normally not activated, is acted upon by closing the switch 6 both via the diode 15 with an activation signal and also controlled to emit the coded information stored in it via the emitter 10.

Diese codierte Information wird von dem Empfangsmittel 27 der Empfängervorrichtung 2 empfangen und verstärkt dem Mikroprozessor 16 zugeleitet. Der im Mikroprozessor 16 enthaltene Vergleicher vergleicht die empfangene Information mit der in dem Speicher des Mikroprozessors 16 gespeicherten codierten Information. Im Falle einer Übereinstimmung der empfangenen mit der gespeicherten Information, gibt der Mikroprozessor 16 über den Verstärker eine Quittierungs- information ab, die von dem Sender 24 ausgestrahlt wird.This coded information is received by the receiving means 27 of the receiver device 2 and is increasingly supplied to the microprocessor 16. The comparator contained in the microprocessor 16 compares the received information with the coded information stored in the memory of the microprocessor 16. If the received information matches the stored information, the microprocessor 16 outputs an acknowledgment information via the amplifier, which is emitted by the transmitter 24.

Gleichzeitig gibt der Mikroprozessor 16 über die Ausgänge 29 ein Ansteuersignal ab, durch das die nicht dargestellten Schließvorrichtungen im Öffnungs- bzw. SchlieBsinn angesteuert werden.At the same time, the microprocessor 16 emits a control signal via the outputs 29, by means of which the locking devices (not shown) are controlled in the opening or closing direction.

Die vom Sender 24 ausgestrahlte Quittierungsinformation wird vom Empfänger 11 der Sendevorrichtung 1 empfangen und über den Verstärker 12 dem Mikroprozessor 3 zugeleitet. Gleichzeitig wird durch dieses Signal auch der Mikroprozessor 3 aktiv geschaltet.The acknowledgment information emitted by the transmitter 24 is received by the receiver 11 of the transmission device 1 and sent to the microprocessor 3 via the amplifier 12. At the same time, the microprocessor 3 is also activated by this signal.

Aufgrund des Erhalts der Quittierungsinformation steuert der Mikroprozessor 3 den Tongenerator 5 zur Abgabe eines Tones an. Dieser Ton zeigt der Bedienungsperson daß der gesamte Steuervorgang ordnungsgemäß durchlaufen wurde.Based on the receipt of the acknowledgment information, the microprocessor 3 controls the tone generator 5 to emit a tone. This tone shows the operator that the entire control process was carried out properly.

Wird nun der Zündschalter geschlossen, so wird über den Anschluß 19 der Mikroprozessor 16 derart angesteuert, daß diesem vom Oszillator 22 eine Zufallsimpulsfolge zugeleitet wird, die der Mikroprozessor 16 unter Löschung der bisher gespeicherten codierten Information in seinem Speicher speichert.If the ignition switch is now closed, the microprocessor 16 is controlled via the connection 19 in such a way that a random pulse sequence is fed to it from the oscillator 22, which the microprocessor 16 stores in its memory while deleting the previously stored coded information.

Gleichzeitig wird diese Zufallsimpulsfolge über den Verstärker 25 dem Sender 26 zugeleitet, der diese codierte Information ausstrahlt.At the same time, this random pulse sequence is fed via the amplifier 25 to the transmitter 26, which emits this coded information.

Diese neue codiertE Information wird von dem Empfänger 11 der Sendevorrichtung 1 empfangen, die dadurch sowohl den Mikroprozessor 3 aktiv schaltet, als auch die codierte Information über den Verstärker 13 dem Mikroprozessor 3 zuleitet. Dieser speichert nun unter Löschung der bisher gespeicherten codierten Information die neue codierte Information.This new coded E information is received by the receiver 11 of the transmitting device 1, which thereby both activates the microprocessor 3 and also feeds the coded information to the microprocessor 3 via the amplifier 13. This now stores the new coded information by deleting the previously stored coded information.

Dadurch, daß der Mikroprozessor 3 immer nur dann aktiv geschaltet wird, wenn er tatsächlich eine Funktion ausführt, wird der Stromverbrauch der Sendevorrichtung sehr gering gehalten.Because the microprocessor 3 is only activated when it is actually performing a function, the power consumption of the transmitting device is kept very low.

Claims (18)

1. Steuervorrichtung zum Ver- und/oder Entriegeln einer Sicherheitseinrichtung, insbesondere einer Kraftfahrzeugschließvorrichtung, mit einer von einer Stromquelle versorgten Sendevorrichtung, die einen Codeerzeuger zum Erzeugen einer in ihm gespeicherten codierten Information und einen Russtrahler der codierten Information besitzt, mit einer von einer zweiten Stromquelle versorgten Empfängervorrichtung, die Empfangsmittel zum Empfangen der codierten Information, einen Speicher, in dem die codierte Information gespeichert ist, und einen Uergleicher zum Vergleich der empfangenen Information mit der gespeicherten Information aufweist, wobei von der Empfängervorrichtung im Falle der Übereinstimmung dieser Informationen ein Ansteuersignal an die Sicherheitseinrichtung abgebbar ist, dadurch gekennzeichnet, daB die Empfängervorrichtung (2) einen Signalerzeuger zur Erzeugung einer weiteren codierten Information aufweist und die weitere codierte Information in den Speicher der Empfängervorrichtung (2) einspeicherbar sowie von einem Sender (26) der Empfängervorrichtung (2) ausstrahlbar ist, und daß die Sendevorrichtung (1) einen Empfänger (11) zum Empfangen der weiteren codierten Information besitzt und die weitere codierte Information unter Löschung der ersten codierten Information im Speicher der Sendevorrichtung (1) speicherbar ist.1. Control device for locking and / or unlocking a security device, in particular a motor vehicle locking device, with a transmission device supplied by a power source, which has a code generator for generating coded information stored in it and a transmitter of the coded information, with one from a second power source supplied receiver device, the receiving means for receiving the encoded information, a memory in which the encoded information is stored, and a comparator for comparing the received information with the stored information, wherein in the case of the match of this information a control signal from the receiver device to the Safety device can be emitted, characterized in that the receiver device (2) has a signal generator for generating further coded information and the further coded information in the memory of the receiver device device (2) can be stored and emitted by a transmitter (26) of the receiver device (2), and that the transmitting device (1) has a receiver (11) for receiving the further coded information and the further coded information can be stored in the memory of the transmitting device (1) while deleting the first coded information. 2. Steuervorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Signalerzeuger ein mit der Empfängervorrichtung (2) verbundener Oszillator (22) ist.2. Control device according to claim 1, characterized in that the signal generator is an oscillator (22) connected to the receiver device (2). 3. Steuervorrichtung nach Anspruch 2, dadurch ge- kennzeichnet, daß durch den Oszillator (22) eine Zufallsimpulsfolge erzeugbar ist.3. Control device according to claim 2, characterized in that a random pulse sequence can be generated by the oscillator (22). 4. Steuervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Codeerzeuger der Sendevorrichtung (1) und/oder Veroleicher und Speicher der Empfängervorrichtung (2) ein Mikroprozessor (16) ist.4. Control device according to one of the preceding claims, characterized in that the code generator of the transmitter device (1) and / or Veroleicher and memory of the receiver device (2) is a microprocessor (16). 5. Steuervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Erzeugung und Übertragung sowie Speicherung der weiteren codierten Information durch einen Schalter der Empfängervorrichtung (2) einschaltbar ist.5. Control device according to one of the preceding claims, characterized in that the generation and transmission and storage of the further coded information can be switched on by a switch of the receiver device (2). 6. Steuervorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der Schalter der Zündschalter (Klemme 15) des Kraftfahrzeugs ist.6. Control device according to claim 5, characterized in that the switch is the ignition switch (terminal 15) of the motor vehicle. 7. Steuervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sendevorrichtung (1) durch einen Schalter (6) einschaltbar ist.7. Control device according to one of the preceding claims, characterized in that the transmitter device (1) can be switched on by a switch (6). 8. Steuervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ausstrahlung der ersten codierten Information durch die Sendevorrichtung (1) und/oder die Ausstrahlung der weiteren codierten Information durch die Empfängervorrichtung (2) in einem Mehrfachintervall erfolgt.8. Control device according to one of the preceding claims, characterized in that the transmission of the first coded information by the transmitter device (1) and / or the transmission of the further coded information by the receiver device (2) takes place in a multiple interval. 9. Steuervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Stromquelle der Empfängervorrichtung (2) die Batterie des Kraftfahrzeugs ist.9. Control device according to one of the preceding claims, characterized in that the current source of the receiver device (2) is the battery of the motor vehicle. 10. Steurervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sendevorrichtung (1) von der Empfängervorrichtung (2) ortsunabhängig ist.10. Control device according to one of the preceding claims, characterized in that the transmitter device (1) of the receiver device (2) is location-independent. 11. Steuervorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Sendevorrichtung (1) in einem Zündschlüssel des Kraftfahrzeugs angeordnet ist.11. Control device according to claim 10, characterized in that the transmitting device (1) is arranged in an ignition key of the motor vehicle. 12. Steuervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Stromquelle der Sendevorrichtung (1) eine Gleichstromquelle (7) ist.12. Control device according to one of the preceding claims, characterized in that the current source of the transmitting device (1) is a direct current source (7). 13. Steuervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Empfängervorrichtung (2) einen zweiten Sender (24) aufweist, von dem nach Abgabe des Ansteuersignals der Empfängervorrichtung (2) an die Sicherheitseinrichtung eine Information ausstrahlbar ist.13. Control device according to one of the preceding claims, characterized in that the receiver device (2) has a second transmitter (24), from which information can be emitted after the control signal of the receiver device (2) has been delivered to the safety device. 14. Steuervorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß die Information des zweiten Senders (24) von einem Empfänger (11) der Sendevorrichtung (1) erfaßbar und von dem Empfänger (11) eine SignalEinrichtung ansteuerbar ist.14. Control device according to claim 13, characterized in that the information of the second transmitter (24) can be detected by a receiver (11) of the transmitter device (1) and a signal device can be controlled by the receiver (11). 15. Steuervorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß die Signaleinrichtung ein Tongenerator (5) ist.15. Control device according to claim 14, characterized in that the signal device is a tone generator (5). 16. Steuervorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Ausstrahler (10), erster und zweiter Sender (24 und 26) sowie Empfangsmittel (27) und erster und zweiter Empfänger (11 und 27) Infrarotelemente sind.16. Control device according to one of the preceding claims, characterized in that emitters (10), first and second transmitters (24 and 26) and receiving means (27) and first and second receivers (11 and 27) are infrared elements. 17. Steuervorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß der Ausstrahler (10) und/oder der erste Sender (26) und/oder der zweite Sender (24) eine Leuchtdiode ist.17. Control device according to claim 16, characterized in that the emitter (10) and / or the first transmitter (26) and / or the second transmitter (24) is a light-emitting diode. 18. Steuervorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß die Empfangsmittel (27) und/ oder der erste Empfänger (11) und/oder der zweite Empfänger (11) ein Fototransistor ist.18. Control device according to claim 16, characterized in that the receiving means (27) and / or the first receiver (11) and / or the second receiver (11) is a phototransistor.
EP84116366A 1984-02-24 1984-12-27 Control device Expired - Lifetime EP0153499B1 (en)

Applications Claiming Priority (2)

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DE3406746 1984-02-24
DE19843406746 DE3406746A1 (en) 1984-02-24 1984-02-24 CONTROL DEVICE

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EP0153499A3 EP0153499A3 (en) 1988-04-20
EP0153499B1 EP0153499B1 (en) 1990-10-10

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Cited By (11)

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Publication number Priority date Publication date Assignee Title
DE3613666A1 (en) * 1986-04-23 1987-10-29 Bks Gmbh METHOD FOR BIDIRECTIONAL DATA TRANSFER AND ELECTRONIC LOCKING SYSTEM WORKING AFTER THIS
FR2640559A1 (en) * 1988-12-20 1990-06-22 Renault VEHICLE DATA SUPPORT SYSTEM
FR2716147A1 (en) * 1994-02-17 1995-08-18 Rover Group Vehicle security system.
DE4441415A1 (en) * 1994-11-22 1996-05-23 Audi Ag Key system for vehicle with electronic immobiliser and associated Vehicle Identification Number
EP0727880A2 (en) * 1995-02-17 1996-08-21 NICE SpA Improved remote control system, for transmitting coded signals, provided with a service transmitter able to selflearn codes from other transmitters
GB2301397A (en) * 1994-02-17 1996-12-04 Rover Group Vehicle security system
WO1997032097A1 (en) * 1996-02-26 1997-09-04 Nsm Aktiengesellschaft Device for monitoring the open or closed state of a door of an object
DE29613136U1 (en) * 1996-08-02 1997-11-27 Rösler, Klaus-Dieter, Dipl.-Ing., 28844 Weyhe Lock or access authorization system
DE19755092A1 (en) * 1997-12-11 1999-06-17 Bosch Gmbh Robert Access authorization control system
US6049289A (en) * 1996-09-06 2000-04-11 Overhead Door Corporation Remote controlled garage door opening system
EP0823520A3 (en) * 1996-08-08 2001-05-23 DaimlerChrysler AG Authentication device with electronic authentication communication

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DE4213141C2 (en) * 1992-04-22 2000-04-27 Mannesmann Vdo Ag Process for the generation and transmission of function commands
DE19513498C1 (en) * 1995-04-10 1996-06-27 Daimler Benz Ag Electronic car key

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DE3005890A1 (en) * 1979-02-21 1980-09-11 Amcor Ltd ELECTRONICALLY CODED LOCKING DEVICE
WO1983003697A1 (en) * 1982-04-10 1983-10-27 Siegbert Pietschmann Light wave control device
EP0098437A2 (en) * 1982-07-09 1984-01-18 Hülsbeck & Fürst GmbH. & Co. KG Electronic locking device with key and lock parts interacting by means of electric pulses

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US4209782A (en) * 1976-08-05 1980-06-24 Maximilian Wachtler Method and circuit arrangement for the electronically controlled release of door, safe and function locks using electronically coded keys
DE3005890A1 (en) * 1979-02-21 1980-09-11 Amcor Ltd ELECTRONICALLY CODED LOCKING DEVICE
WO1983003697A1 (en) * 1982-04-10 1983-10-27 Siegbert Pietschmann Light wave control device
EP0098437A2 (en) * 1982-07-09 1984-01-18 Hülsbeck & Fürst GmbH. & Co. KG Electronic locking device with key and lock parts interacting by means of electric pulses

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3613666A1 (en) * 1986-04-23 1987-10-29 Bks Gmbh METHOD FOR BIDIRECTIONAL DATA TRANSFER AND ELECTRONIC LOCKING SYSTEM WORKING AFTER THIS
FR2640559A1 (en) * 1988-12-20 1990-06-22 Renault VEHICLE DATA SUPPORT SYSTEM
US5679984A (en) * 1994-02-17 1997-10-21 Rover Group Limited Vehicle security system
FR2716147A1 (en) * 1994-02-17 1995-08-18 Rover Group Vehicle security system.
WO1995022475A1 (en) * 1994-02-17 1995-08-24 Rover Group Limited Vehicle security system
GB2301397B (en) * 1994-02-17 1998-07-15 Rover Group Vehicle security system
GB2301397A (en) * 1994-02-17 1996-12-04 Rover Group Vehicle security system
DE4441415A1 (en) * 1994-11-22 1996-05-23 Audi Ag Key system for vehicle with electronic immobiliser and associated Vehicle Identification Number
DE4441415C2 (en) * 1994-11-22 2003-06-18 Audi Ag Procedures for handling replacement keys
EP0727880A2 (en) * 1995-02-17 1996-08-21 NICE SpA Improved remote control system, for transmitting coded signals, provided with a service transmitter able to selflearn codes from other transmitters
EP0727880A3 (en) * 1995-02-17 1998-09-16 NICE SpA Improved remote control system, for transmitting coded signals, provided with a service transmitter able to selflearn codes from other transmitters
WO1997032097A1 (en) * 1996-02-26 1997-09-04 Nsm Aktiengesellschaft Device for monitoring the open or closed state of a door of an object
DE29613136U1 (en) * 1996-08-02 1997-11-27 Rösler, Klaus-Dieter, Dipl.-Ing., 28844 Weyhe Lock or access authorization system
EP0823520A3 (en) * 1996-08-08 2001-05-23 DaimlerChrysler AG Authentication device with electronic authentication communication
US6049289A (en) * 1996-09-06 2000-04-11 Overhead Door Corporation Remote controlled garage door opening system
US6667684B1 (en) 1996-09-06 2003-12-23 Overhead Door Corporation Remote controlled garage door opening system
DE19755092A1 (en) * 1997-12-11 1999-06-17 Bosch Gmbh Robert Access authorization control system

Also Published As

Publication number Publication date
EP0153499B1 (en) 1990-10-10
DE3483393D1 (en) 1990-11-15
EP0153499A3 (en) 1988-04-20
DE3406746A1 (en) 1985-08-29

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