EP0106273A2 - Dispositif de sécurité - Google Patents

Dispositif de sécurité 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
Authority
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
Other languages
German (de)
English (en)
Other versions
EP0106273A3 (en
EP0106273B1 (fr
Inventor
Walter Weishaupt
Arnost Proske
Michael Tigges
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0106273A2 publication Critical patent/EP0106273A2/fr
Publication of EP0106273A3 publication Critical patent/EP0106273A3/de
Application granted granted Critical
Publication of EP0106273B1 publication Critical patent/EP0106273B1/fr
Expired legal-status Critical Current

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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
    • G07C9/00857—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)
EP83109958A 1982-10-11 1983-10-05 Dispositif de sécurité Expired EP0106273B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3237622 1982-10-11
DE19823237622 DE3237622A1 (de) 1982-10-11 1982-10-11 Sicherheitseinrichtung

Publications (3)

Publication Number Publication Date
EP0106273A2 true EP0106273A2 (fr) 1984-04-25
EP0106273A3 EP0106273A3 (en) 1984-08-15
EP0106273B1 EP0106273B1 (fr) 1987-05-13

Family

ID=6175441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109958A Expired EP0106273B1 (fr) 1982-10-11 1983-10-05 Dispositif de sécurité

Country Status (3)

Country Link
US (1) US4652860A (fr)
EP (1) EP0106273B1 (fr)
DE (2) DE3237622A1 (fr)

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DE2906665A1 (de) * 1979-02-21 1980-08-28 Apag Elektronik Ag Vorrichtung an kraftfahrzeugen
DE2928913B1 (de) * 1979-07-18 1980-09-25 Bayerische Motoren Werke Ag Diebstahl-Sicherungsvorrichtung fuer Kraftfahrzeuge
DE3006128A1 (de) * 1980-02-19 1981-08-20 Sachs Systemtechnik Gmbh, 8720 Schweinfurt Schliesseinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441415A1 (de) * 1994-11-22 1996-05-23 Audi Ag Verfahren für die Handhabung von Ersatzschlüsseln
DE4441415C2 (de) * 1994-11-22 2003-06-18 Audi Ag Verfahren für die Handhabung von Ersatzschlüsseln

Also Published As

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

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