EP0106273A2 - Safety device - Google Patents

Safety device Download PDF

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Publication number
EP0106273A2
EP0106273A2 EP83109958A EP83109958A EP0106273A2 EP 0106273 A2 EP0106273 A2 EP 0106273A2 EP 83109958 A EP83109958 A EP 83109958A EP 83109958 A EP83109958 A EP 83109958A EP 0106273 A2 EP0106273 A2 EP 0106273A2
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EP
European Patent Office
Prior art keywords
transmitter
code signal
receiver
memory
code
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
EP83109958A
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German (de)
French (fr)
Other versions
EP0106273B1 (en
EP0106273A3 (en
Inventor
Walter Weishaupt
Arnost Proske
Michael Tigges
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP0106273A2 publication Critical patent/EP0106273A2/en
Publication of EP0106273A3 publication Critical patent/EP0106273A3/en
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Publication of EP0106273B1 publication Critical patent/EP0106273B1/en
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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
    • G07C9/00857—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed
    • 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
    • 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
    • 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
    • G07C9/00857—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed
    • G07C2009/00865—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed remotely by wireless communication
    • 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
    • G07C9/00857—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed
    • G07C2009/00888—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the data carrier can be programmed programming by learning

Definitions

  • the invention relates to a security device, in particular as a door lock or theft protection in a motor vehicle, with a portable transmitter and a receiver arranged on the object to be secured for a code signal, which is at least partially changeable, and with a code signal memory in the transmitter and in Receiver.
  • the code signal is changed in connection with the actual security function, for example when a switching signal for opening the locking device is generated when the code signals from the transmitter and receiver match.
  • This joint reprogramming of the transmitter and receiver takes place either automatically with each such switching signal or after a predetermined number of such switching signals.
  • Due to the electronic, non-mechanical generation of the code signal for example in the form of a pulse code transmitted by UHF or IR, it is not externally recognizable which code signal is present or whether the code signal has changed compared to an earlier use of the security device.
  • the object of the invention is to create a security device of the type mentioned at the outset which, although it retains the possibility of changing the code signal, can also be operated with the aid of a second transmitter.
  • the invention solves this problem in that only the code signal of the transmitter can be changed in response to an arbitrary command and can be written into the associated memory.
  • the arbitrary change in the code signal offers the possibility of also providing the second transmitter with the respectively valid code signal. This can be done, for example, in the form described in more detail below.
  • the code signal only needs to be written into the memory of the second transmitter if it has been changed for the first transmitter. This change is, however, readily known, since it is deliberately made by the owner of the first transmitter.
  • the code signal can be changed in different ways.
  • a particularly simple form is to give the command to change the code signal by means of a switch which is located on the housing of the associated transmitter.
  • the code signal in turn can be generated in various ways.
  • a code signal generator can be provided within the one transmitter housing, which is activated when the switch is actuated.
  • the code signal generator can be, for example, a random or pseudo-random generator.
  • the latter can be implemented, for example, solely by a counter with a high clock frequency, the duty cycle of which is determined by the switch and remains at a value which is determined by the duration of operation of the switch.
  • Such a generator is also known in principle from DE-OS 30 06 128.
  • the switch can also activate the read input of the code signal memory at which the changed code signal is present.
  • This can be transmitted, for example, by another transmitter with a code signal generator. In this way it is possible to provide only one such transmitter which generates the respectively valid original code signal and passes it on to the other transmitters in the manner described.
  • a code signal generator may also serve as a programming part, which is for example an encoder bar or an encoder, and b zw inserted into the housing of the transmitter. Therein is rotatable.
  • the programming part With the aid of the programming part, the state of which can be selected manually, for example, the code signal corresponding to the state of the programming part can now be scanned within the transmitter housing and written into the associated memory.
  • the programming part can also be introduced into its housing and scanned there in the same way.
  • This change in the code signal with the aid of another transmitter can be carried out in a particularly simple manner in that the actual transmission element of the transmitter is used as the reception element. This is easily possible with a correspondingly small distance between the two transmitters. In the case of a UHF signal, this possibility is known per se, since each antenna also acts as a transmission element.
  • a diode is used as the IR transmitter element, it also acts as a receiver and delivers an output signal with a sufficiently high level when the input power is high.
  • the stamping of a new code signal can be ensured by ensuring that the transmitter housing has a shape that is complementary to that of the other transmitter that emits the valid code signal.
  • a security device in the form of a locking device for a motor vehicle contains a transmitter 1, the housing 2 of which contains several push buttons. These are pushbuttons 3 and 3 'for sending out a code signal contained in a memory, not shown, with the aid of an IR diode 4 for opening or closing the locking device, and further pushbuttons 5, 6 and 7, with the aid of which a new code signal is stored in the memory is readable.
  • the housing 2 also shows two further IR diodes 9, which are located near the diode 4 and laterally emit an interference signal, as described in patent application P 31 49 259.2.
  • the pushbuttons 6 or 7 released after a cover 8 is pushed back into the first or second latching position enable one of the two variable parts of the code signal to be changed. If the pushbutton 6 is actuated, only the so-called change code is activated, but when the pushbutton 7 is actuated it is So-called owner code changed according to a generated new code signal.
  • change and owner code and the special way of changing it can be found in DE-AS 29 28 913.
  • the generation of one of the two partial codes takes place in such a way that a fast-running counter contained in the housing 2 is pressed when the pushbutton 6 or 7 is pressed started and stopped when the push button is released.
  • the current meter reading is read into the memory as a new change or owner code.
  • a new code signal consisting of a change and owner code can be entered into the memory. If a corresponding code signal is present at transmitter 1, this is recorded with the aid of diode 4, which also acts as a receiver.
  • diode 4 which also acts as a receiver.
  • a second transmitter 1 'corresponding to the transmitter 1 in its structure is placed in such a way that its transmitter diode 4' corresponding to the diode 4 is exactly opposite it, and its code signal is transmitted by actuating the corresponding pushbuttons 3 "or 3" ' .
  • the orientation of the transmitters 1 and 1 ' is facilitated by the complementary design of the housings 2 and 2' of the transmitters 1 and 1 'in the form of cams 10 and 10' and receptacles 11 and 11 '.
  • a light-emitting diode 12 is provided in the housing 2, which serves as an operating aid. It lights up when the stored code signal is sent using pushbuttons 3 or 3 'or when an externally applied new code signal has been saved after
  • FIG. 2 An alternative to the code signal generation is shown in FIG. 2.
  • a new code signal is entered into the memory of the transmitter 1 with the aid of a coding rod 13 which can be inserted into the housing 2.
  • Two transmitted light light barriers 14 are located in this, which when the coding rod 13 is inserted, scan the code information which determines the code signal and is arranged one behind the other. This information is available on ten successive double fields 15, which can be provided with an erasable line marking 16 in different ways.

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

Abstract

Bei einer Sicherheitseinrichtung mit einem tragbaren Sender und einem an dem zu sichernden Gegenstand angeordneten Empfänger für ein IR- bzw. UHF-Codesignal, das zumindest teilweise veränderbar ist, kann allein das Codesignal des Senders auf einen willkürlichen Befehl hin verändert und in den zugehörigen Speicher des Senders eingeschrieben werden.In a security device with a portable transmitter and a receiver arranged on the object to be secured for an IR or UHF code signal, which is at least partially changeable, only the code signal of the transmitter can be changed upon an arbitrary command and stored in the associated memory of the Be registered.

Description

Die Erfindung bezieht sich auf eine Sicherheitseinrichtung, insbesondere als Türverriegelung oder Diebstahlschutz in einem Kraftfahrzeug, mit einem tragbaren Sender und einem an dem zu sichernden Gegenstand angeordneten Empfänger für ein Codesignal, das zumindest teilweise veränderbar ist, und mit einem Codesignal-Speicher im Sender und im Empfänger.The invention relates to a security device, in particular as a door lock or theft protection in a motor vehicle, with a portable transmitter and a receiver arranged on the object to be secured for a code signal, which is at least partially changeable, and with a code signal memory in the transmitter and in Receiver.

ein Bei einer Schließeinichtung als bekannte derartige Sicherheitseinrichtung (vgl. DE-OS 30 06 128) erfolgt die Veränderung des Codesignals im Zusammenhang mit der eigentlichen Sicherheitsfunktion beispielsweise dann, wenn bei Übereinstimmung der Codesignale von Sender und Empfänger ein Schaltsignal zum öffnen der Schließeinrichtung erzeugt wird. Dieses gemeinsame Umprogrammieren von Sender und Empfänger erfolgt entweder bei jedem derartigen Schaltsignal oder nach einer vorgegebenen Anzahl von derartigen Schaltsignalen jeweils selbsttätig. Daraus ergibt sich das Problem, daß die Benutzung der Sicherheitseinrichtung mit Hilfe eines zweiten Senders nicht oder zumindest nur mit erheblichen Schwierigkeiten möglich ist. Aufgrund der elektronischen, nicht-mechanischen Erzeugung des Codesignals, beispielsweise in Form eines mittels UHF- oder IR-übertragenen Impulscode ist äußerlich nicht erkennbar, welches Codesignal vorliegt bzw. ob das Codesignal gegenüber einer früheren Benutzung der Sicherheitseinrichtung geändert ist.When the locking device is known as such a security device (cf. DE-OS 30 06 128), the code signal is changed in connection with the actual security function, for example when a switching signal for opening the locking device is generated when the code signals from the transmitter and receiver match. This joint reprogramming of the transmitter and receiver takes place either automatically with each such switching signal or after a predetermined number of such switching signals. This results in the problem that the use of the safety device with the aid of a second transmitter is not possible, or at least only with considerable difficulty. Due to the electronic, non-mechanical generation of the code signal, for example in the form of a pulse code transmitted by UHF or IR, it is not externally recognizable which code signal is present or whether the code signal has changed compared to an earlier use of the security device.

Der Erfindung liegt die Aufgabe zugrunde, eine Sicherheitseinrichtung der eingangs genannten Art zu schaffen, die zwar die Möglichkeit, das Codesignal zu verändern, beibehält, die jedoch ohne weiteres auch mit Hilfe eines zweiten Senders zu betreiben ist.The object of the invention is to create a security device of the type mentioned at the outset which, although it retains the possibility of changing the code signal, can also be operated with the aid of a second transmitter.

Die Erfindung löst diese Aufgabe dadurch, daß allein das Codesignal des Senders auf einen willkürlichen Befehl hin veränderbar und in den zugehörigen Speicher einschreibbar ist.The invention solves this problem in that only the code signal of the transmitter can be changed in response to an arbitrary command and can be written into the associated memory.

Die willkürliche Änderung des Codesignals bietet die Möglichkeit, auch den zweiten Sender mit dem jeweils gültigen Codesignal zu versehen. Dies kann beispielsweise in der Form geschehen, wie dies weiter unten näher beschrieben wird. Das Codesignal braucht nur dann in den Speicher des zweiten Senders eingeschrieben zu werden, wenn es für den ersten Sender geändert ist. Diese Änderung ist aber ohne weiteres bekannt, da sie durch den Inhaber des ersten Senders bewußt vorgenommen wird.The arbitrary change in the code signal offers the possibility of also providing the second transmitter with the respectively valid code signal. This can be done, for example, in the form described in more detail below. The code signal only needs to be written into the memory of the second transmitter if it has been changed for the first transmitter. This change is, however, readily known, since it is deliberately made by the owner of the first transmitter.

Das Codesignal kann auf verschiedene Weise geändert werden. Eine besonders einfache Form besteht darin, den Befehl zum Ändern des Codesignals durch einen Schalter zu geben, der am Gehäuse des zugehörigen Senders sitzt.The code signal can be changed in different ways. A particularly simple form is to give the command to change the code signal by means of a switch which is located on the housing of the associated transmitter.

Das Codesignal seinerseits kann dabei in verschiedener Weise erzeugt werden. So kann innerhalb des einen Sender-Gehäuses ein Codesignal-Generator vorgesehen sein, der bei Betätigen des Schalters aktiviert wird. Der Codesignal-Generator kann beispielsweise ein Zufalls- oder Pseudo-Zufallsgenerator sein. Letzterer kann beispielsweise allein durch einen Zähler mit hoher Taktfrequenz realisiert werden, dessen Einschaltdauer durch den Schalter bestimmt wird und auf einem durch die Betätigungsdauer des Schalters festgelegten Wert stehen bleibt. Ein derartiger Generator ist ebenfalls aus der DE-OS 30 06 128 im Prinzip bekannt.The code signal in turn can be generated in various ways. Thus, a code signal generator can be provided within the one transmitter housing, which is activated when the switch is actuated. The code signal generator can be, for example, a random or pseudo-random generator. The latter can be implemented, for example, solely by a counter with a high clock frequency, the duty cycle of which is determined by the switch and remains at a value which is determined by the duration of operation of the switch. Such a generator is also known in principle from DE-OS 30 06 128.

Alternativ hierzu kann der Schalter auch den Leseeingang des Codesignal-Speichers aktivieren, an dem das geänderte Codesignal anliegt. Dieses kann beispielsweise durch einen anderen Sender mit Codesignal-Generator ausgesandt werden. Auf diese Weise ist es möglich, lediglich einen derartigen Sender vorzusehen, der das jeweils gültige Ur-Codesignal erzeugt und dieses an die anderen Sender in der beschriebenen Weise weitergibt.As an alternative to this, the switch can also activate the read input of the code signal memory at which the changed code signal is present. This can be transmitted, for example, by another transmitter with a code signal generator. In this way it is possible to provide only one such transmitter which generates the respectively valid original code signal and passes it on to the other transmitters in the manner described.

Als Codesignal-Generator kann auch ein Programmierteil dienen, das beispielsweise ein Codierstab oder eine Codierscheibe ist und in das Gehäuse des Senders einschiebbar bzw. darin verdrehbar ist. Mit Hilfe des Programmierteils, dessen Zustand beispielsweise manuell wählbar ist, kann nun innerhalb der Sendergehäuse das dem Zustand des Programmierteils entsprechende Codesignal abgetastet und in den zugehörigen Speicher eingeschrieben werden. Zur Änderung des Codesignals eines zweiten Senders kann das Programmierteil auch in dessen Gehäuse eingebracht werden und dort in derselben Weise abgetastet werden.As a code signal generator may also serve as a programming part, which is for example an encoder bar or an encoder, and b zw inserted into the housing of the transmitter. Therein is rotatable. With the aid of the programming part, the state of which can be selected manually, for example, the code signal corresponding to the state of the programming part can now be scanned within the transmitter housing and written into the associated memory. To change the code signal of a second transmitter, the programming part can also be introduced into its housing and scanned there in the same way.

Dieses Ändern des Codesignals mit Hilfe eines anderen Senders kann auf besonders einfache Weise dadurch vorgenommen werden, daß das eigentliche Sendeelement des Senders als Empfangselement verwendet wird. Dies ist bei entsprechend geringem Abstand der beiden Sender ohne weiteres möglich. Im Falle eines UHF-Signals ist diese Möglichkeit an sich bekannt, da jede Antenne auch als Sendeelement wirkt.This change in the code signal with the aid of another transmitter can be carried out in a particularly simple manner in that the actual transmission element of the transmitter is used as the reception element. This is easily possible with a correspondingly small distance between the two transmitters. In the case of a UHF signal, this possibility is known per se, since each antenna also acts as a transmission element.

Es ist nun aber auch möglich, bei einem IR-Codesignal dieselbe Maßnahme zu realisieren. Verwendet man als IR-Sendeelement eine Diode, so wirkt diese auch als Empfänger und liefert bei großer Eingangsleistung ein Ausgangssignal mit hinreichend hohem Pegel. Dabei läßt sich das Aufprägen eines neuen Codesignals dadurch,sicherstellen, daß das Sender-Gehäuse eine Form besitzt, die komplementär zu der des anderen, das gültige Codesignal ausstrahlenden Senders ist.However, it is now also possible to implement the same measure for an IR code signal. If a diode is used as the IR transmitter element, it also acts as a receiver and delivers an output signal with a sufficiently high level when the input power is high. The stamping of a new code signal can be ensured by ensuring that the transmitter housing has a shape that is complementary to that of the other transmitter that emits the valid code signal.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt und im folgenden näher erläutert. Es zeigt:

  • Fig. 1 Zwei gleich programmierbare IR-Sender für ein Codesignal im Rahmen einer Sicherheitseinrichtung und
  • Fig. 2 einen alternativen Sender hierzu.
Exemplary embodiments of the invention are shown in the drawing and explained in more detail below. It shows:
  • Fig. 1 Two identically programmable IR transmitters for a code signal in the context of a security device and
  • Fig. 2 shows an alternative transmitter for this.

Eine nicht im einzelnen dargestellte Sicherheitseinrichtung in Form einer Schließeinrichtung für ein Kraftfahrzeug enthält einen Sender 1, dessen Gehäuse 2 mehrere Drucktasten enthält. Es sind dies Drucktasten 3 und 3' zum Aussenden eines in einem nicht dargestellten Speicher enthaltenen Codesignals mit Hilfe einer IR-Diode 4 zum öffnen bzw. Schließen der Schließeinrichtung sowie weitere Drucktasten 5, 6 und 7, mit deren Hilfe ein neues Codesignal in den Speicher einlesbar ist. Das Gehäuse 2 zeigt ferner zwei weitere IR-Dioden 9, die in der Nähe der Diode 4 sitzen und seitlich ein Störsignal aussenden, wie es in der Patentanmeldung P 31 49 259.2 beschrieben ist.A security device, not shown in detail, in the form of a locking device for a motor vehicle contains a transmitter 1, the housing 2 of which contains several push buttons. These are pushbuttons 3 and 3 'for sending out a code signal contained in a memory, not shown, with the aid of an IR diode 4 for opening or closing the locking device, and further pushbuttons 5, 6 and 7, with the aid of which a new code signal is stored in the memory is readable. The housing 2 also shows two further IR diodes 9, which are located near the diode 4 and laterally emit an interference signal, as described in patent application P 31 49 259.2.

Die nach Zurückschieben einer Abdeckung 8 in die erste bzw. zweite Raststellung freigebenen Drucktasten 6 oder 7 ermöglichen einen der beiden veränderlichen Teile des Codesignals zu ändern .Wird die Drucktaste 6 betätigt, so wird nur der sog. Wechselcode, bei Betätigen der Drucktaste 7 hingegen der sog. Besitzercode entsprechend einem erzeugten neuen Codesignal geändert. Die Unterscheidung zwischen Wechsel- und Besitzercode und die besondere Art ihrer Änderung findet sich in der DE-AS 29 28 913. Die Erzeugung eines der beiden Teilcodes geschieht in der Weise, daß bei Drücken der Drucktaste 6 oder 7 ein im Gehäuse 2 enthaltener schnellaufender Zähler gestartet und bei Loslassen der Drucktaste angehalten wird. Der aktuelle Zählerstand wird als neuer Wechsel- bzw. Besitzercode in den Speicher eingelesen.The pushbuttons 6 or 7 released after a cover 8 is pushed back into the first or second latching position enable one of the two variable parts of the code signal to be changed. If the pushbutton 6 is actuated, only the so-called change code is activated, but when the pushbutton 7 is actuated it is So-called owner code changed according to a generated new code signal. The distinction between change and owner code and the special way of changing it can be found in DE-AS 29 28 913. The generation of one of the two partial codes takes place in such a way that a fast-running counter contained in the housing 2 is pressed when the pushbutton 6 or 7 is pressed started and stopped when the push button is released. The current meter reading is read into the memory as a new change or owner code.

Nach Betätigen der Drucktaste 5 kann ein aus Wechsel- und Besitzercode bestehendes neues Codesignal in den Speicher eingegeben werden. Liegt ein entsprechendes Codesignal am Sender 1 an, so wird dieses mit Hilfe der Diode 4 aufgenommen, die auch als Empfänger wirkt. Hierzu wird beispielsweise ein zweiter, dem Sender 1 in seinem Aufbau entsprechender Sender 1' so gegenüber gestellt, daß dessen der Diode 4 entsprechende Sendediode 4' dieser genau gegenüber liegt, und dessen Codesignal durch Betätigen der entsprechenden Drucktasten 3" bzw. 3"' ausgesandt. Durch komplementäre Gestaltung der Gehäuse 2 bzw. 2' der Sender 1 bzw. 1' in Form von Nocken 10 bzw. 10' und Aufnahmen 11 bzw. 11' wird die Orientierung der Sender 1 und 1' erleichtert. Ferner ist eine Leuchtdiode 12 im Gehäuse 2 vorgesehen, die als Bedienhilfe dient. Sie leuchtet, wenn mittels der Drucktasten 3 bzw. 3' das gespeicherte Codesignal angesandt wird bzw. wenn nach Drücken der Drucktaste 5 ein extern angesandtes neues Codesignal gespeichert worden ist.After pressing pushbutton 5, a new code signal consisting of a change and owner code can be entered into the memory. If a corresponding code signal is present at transmitter 1, this is recorded with the aid of diode 4, which also acts as a receiver. For this purpose, for example, a second transmitter 1 'corresponding to the transmitter 1 in its structure is placed in such a way that its transmitter diode 4' corresponding to the diode 4 is exactly opposite it, and its code signal is transmitted by actuating the corresponding pushbuttons 3 "or 3" ' . The orientation of the transmitters 1 and 1 'is facilitated by the complementary design of the housings 2 and 2' of the transmitters 1 and 1 'in the form of cams 10 and 10' and receptacles 11 and 11 '. Furthermore, a light-emitting diode 12 is provided in the housing 2, which serves as an operating aid. It lights up when the stored code signal is sent using pushbuttons 3 or 3 'or when an externally applied new code signal has been saved after pushbutton 5.

Auf diese Weise ist es möglich, allein das Codesignal des Senders 1 willkürlich zu verändern. Dies erfolgt unabhängig von der Veränderung des Codesignals in dem Speicher eines nicht dargestellten, mit dem zu sichernden Gegenstand verbundenen Empfängers. Die willkürliche Änderung allein des Codesignals für den Sender bietet den Vorteil, daß sie nur dann vorgenommen zu werden braucht, wenn das für die Sicherheitseinrichtung maßgebliche Codesignal geändert ist. Einem zweiten Sender, wie beispielsweise dem dargestellten Sender 1 kann das maßgebliche Codesignal ohne weiteres aufgeprägt werden. Ferner sind Fehler, die bei der Aufnahme des Codesignals im Speicher des Senders auftreten, ohne gravierenden Einfluß auf die Funktion der Sicherheitseinrichtung. Ein derartiger Fehler kann durch erneutes Einlesen des maßgeblichen Codesignals in den Speicher des Senders 1 behoben werden. Folgt hingegen die Umcodierung von Sender und Empfänger gleichzeitig, so führt ein derartiger Fehler zu einer Diskrepanz der Codesignale von Sender und Empfänger. Die Folge davon ist, daß die Sicherheitseinrichtung unwirksam bzw. unbrauchbar wird.In this way it is possible to arbitrarily change the code signal of the transmitter 1 alone. This is done regardless of the change in the code signal in the memory of a receiver, not shown, connected to the object to be secured. The arbitrary change of the code signal for the transmitter alone has the advantage that it only has to be carried out if the code signal relevant for the security device has been changed. The relevant code signal can easily be impressed on a second transmitter, such as transmitter 1 shown. Furthermore, errors that occur when the code signal is recorded in the memory of the transmitter have no serious influence on the function of the security device. Such an error can be eliminated by reading the relevant code signal into the memory of the transmitter 1 again. If, on the other hand, the transcoding of sender and receiver follows at the same time, such a result Error on a discrepancy in the code signals from the transmitter and receiver. The consequence of this is that the safety device becomes ineffective or unusable.

Eine Alternative zu der Codesignal-Generierung ist in Fig. 2 gezeigt. Hierbei erfolgt die Eingabe eines neuen Codesignals in den Speicher des Senders 1 mit Hilfe eines Codierstabs 13, der in das Gehäuse 2 einschiebbar ist. In diesem sitzen zwei Durchlicht-Lichtschranken 14, die bei - Einschieben des Codierstabs 13 die das Codesignal bestimmenden, hintereinander angeordneten Codeinformationen abtasten. Diese Informationen liegen auf zehn hintereinander liegenden Doppelfeldern 15 vor,die unterschiedlich mit einer löschbaren Strichmarkierung 16 versehen werden können.An alternative to the code signal generation is shown in FIG. 2. Here, a new code signal is entered into the memory of the transmitter 1 with the aid of a coding rod 13 which can be inserted into the housing 2. Two transmitted light light barriers 14 are located in this, which when the coding rod 13 is inserted, scan the code information which determines the code signal and is arranged one behind the other. This information is available on ten successive double fields 15, which can be provided with an erasable line marking 16 in different ways.

Mit dem Codierstab 13 von Fig. 2 ist es ebenfalls möglich, einen Sender 1 unabhängig vom Empfänger umzuprogrammieren bzw. das Codesignal eines Senders auf einen zweiten Sender zu übertragen.With the coding rod 13 from FIG. 2 it is also possible to reprogram a transmitter 1 independently of the receiver or to transmit the code signal of a transmitter to a second transmitter.

Claims (7)

1. Sicherheitseinrichtung, insbesondere als Türverriegelung oder Diebstahlschutz in einem Kraftfahrzeug, mit einem tragbaren Sender und einem an dem zu sichernden Gegenstand angeordneten Empfänger für ein Codesignal, das zumindest teilweise veränderbar ist, und mit einem Codesignal-Speicher im Sender und im Empfänger, dadurch gekennzeichnet, daß allein das Codesignal des Senders (1) auf einen willkürlichen Befehl hin veränderbar und in den zugehörigen Speicher einschreibbar ist.1. Security device, in particular as a door lock or theft protection in a motor vehicle, with a portable transmitter and a receiver arranged on the object to be secured for a code signal that is at least partially changeable, and with a code signal memory in the transmitter and in the receiver, characterized that only the code signal of the transmitter (1) can be changed to an arbitrary command and can be written into the associated memory. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Befehl durch einen Schalter gegeben wird.2. Device according to claim 1, characterized in that the command is given by a switch. 3. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Schalter (Drucktaste 6 oder 7) einen Codesignal-Generator im Sender (1) aktiviert.3. Device according to claim 2, characterized in that the switch (push button 6 or 7) activates a code signal generator in the transmitter (1). 4. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Schalter (Drucktaste 5) den Codesignal-Speicher zur Aufnahme des von einem zweiten Sender ausgesandten Codesignals aktiviert.4. Device according to claim 2, characterized in that the switch (push button 5) activates the code signal memory for receiving the code signal emitted by a second transmitter. 5. Einrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Sender (1) ein Sendeelement (Diode 4) enthält, das gleichzeitig als Codesignal-Empfänger für den Sender (1') dient.5. Device according to claim 4, characterized in that the transmitter (1) contains a transmitting element (diode 4) which also serves as a code signal receiver for the transmitter (1 '). 6. Einrichtung nach Anspruch 5, dadurch gekennzeichnet, daß das Sendeelement eine Diode (4') ist, die ein IR-Codesignal aussendet.6. Device according to claim 5, characterized in that the transmitting element is a diode (4 ') which emits an IR code signal. 7. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Befehl durch ein abnehmbares Teil (Codierstab 13) des Senders (1) gegeben wird, das in das Gehäuse (2) des Senders (1) einschiebbar ist und eine veränderliche Programmierung enthält.7. Device according to claim 1, characterized in that the command is given by a removable part (coding rod 13) of the transmitter (1) which can be inserted into the housing (2) of the transmitter (1) and contains a variable programming.
EP83109958A 1982-10-11 1983-10-05 Safety device Expired EP0106273B1 (en)

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DE3237622 1982-10-11
DE19823237622 DE3237622A1 (en) 1982-10-11 1982-10-11 SECURITY DEVICE

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EP0106273A3 EP0106273A3 (en) 1984-08-15
EP0106273B1 EP0106273B1 (en) 1987-05-13

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US4652860A (en) 1987-03-24
DE3237622A1 (en) 1984-04-12
EP0106273B1 (en) 1987-05-13
EP0106273A3 (en) 1984-08-15
DE3371548D1 (en) 1987-06-19

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