WO1993025987A1 - Systeme economique d'entree commande a distance - Google Patents

Systeme economique d'entree commande a distance Download PDF

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Publication number
WO1993025987A1
WO1993025987A1 PCT/US1993/005394 US9305394W WO9325987A1 WO 1993025987 A1 WO1993025987 A1 WO 1993025987A1 US 9305394 W US9305394 W US 9305394W WO 9325987 A1 WO9325987 A1 WO 9325987A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
power
processor
tone
pulses
Prior art date
Application number
PCT/US1993/005394
Other languages
English (en)
Inventor
Thomas Fleissner
Gerald M. Brehmer
Original Assignee
United Technologies Automotive, Inc.
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 United Technologies Automotive, Inc. filed Critical United Technologies Automotive, Inc.
Priority to JP6501632A priority Critical patent/JPH06509899A/ja
Priority to EP19930914408 priority patent/EP0598107A4/en
Publication of WO1993025987A1 publication Critical patent/WO1993025987A1/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • 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
    • 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
    • G07C2009/00365—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 in combination with a wake-up circuit
    • G07C2009/0038—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 in combination with a wake-up circuit whereby the wake-up circuit is situated in the keyless data carrier
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means

Definitions

  • This invention relates to remotely controlled systems for vehicles, such as automobile keyless entry systems.
  • Remotely controlled (“keyless”) security systems are becoming increasingly popular in automobiles. These systems typically use a small key chain transmitter. The operator presses a button sending a command as a transmitted coded electromagnetic signal using an infrared or RF carrier. The signal is received at a receiver in the vehicle. At the receiver, a signal processor interprets the decoded information and causes the command function to take place, such as unlocking the doors and providing an audible signal heard (a "chirp”) audible some distance away from the vehicle, confirming that the command has been received and completed.
  • a signal processor interprets the decoded information and causes the command function to take place, such as unlocking the doors and providing an audible signal heard (a "chirp”) audible some distance away from the vehicle, confirming that the command has been received and completed.
  • the receiver and the processor are always in a full power stand-by condition waiting for the command, creating considerable battery drainage, especially if a vehicle is parked for a length of time in colder climates, where available battery power is significantly reduced by lower temperatures.
  • a driver, away for several weeks may return to the vehicle finding a dead battery caused by this continuous power drain in the otherwise "de-powered" vehicle, except perhaps for the clock, although clocks usually blank the A splay when the vehicle is parked to save power.
  • portions of the receiver are identical to portions of the receiver.
  • the signal processor waits until the power-up signal is removed before responding to a command.
  • the power-up signal which proceeds the alarm inactivation signal, comprises a plurality of tone coded pulses.
  • the receiver contains a tone decoder that responds only to particular received pulses.
  • the frequency of the transmitted pulses corresponds to the detection frequency of the decoder and a specified number of pulses must be received.
  • the decoder produces a control signal when those conditions are satisfied.
  • the control signal causes the battery to power the powered down portions of the receiver.
  • the receiver goes to sleep after the command is completed.
  • the last tone pulse (last pulse in the "wake-up signal") initializes a microprocessor routine that interprets the digital command following the wake-up signal.
  • FIG. 1 is a functional block diagram of a keyless entry system embodying the present invention.
  • FIG. 2 is a time graph showing the wake-up and command signals. Best Mode for Carrying Out the Invention
  • a portable remote-control transmitter 10 contains a transmit button 10.1.
  • a user presses the button to cause the transmitter 10 to transmit a carrier (RF or infrared) modulated by "tone pulses" TP and data bits DB shown in FIG. 2.
  • Those signals consist of a “wake-up signal”, first "burst” of toneinstalles at a particular audio frequency and a command, a digital word of data bits.
  • Pressing the button activates a tone-generator 10.2, connected to an RF/digital output 10.3 that produces the modulated carrier RF which is applied to an antenna 10.4.
  • the modulated carrier RF comprising the toneinstalles TP and data bits DB in
  • FIG. 2 is transmitted to a remote receiver 12, associated with the vehicle and powered by the vehicle's battery 14.
  • the carrier RF is received by an antenna 12 and applied to a super regenerative receiver 14 that demodulates the carrier RF producing, on the line 12.2, the two signals TP and DB (one audio pulses at frequency F of the tone pulses TP and the other a "pulse width" modulated digital word with the data characteristics of the data bits of signal DB where a zero is distinguished from a one (zero is "0" and one is " 1 ”) by the duty cycle.
  • the signal TP is applied to a tone decoder 12.3, which is responsive to signal TP having the correct audio frequency and number ofinstalles to provide an output "wake-up" signal SIG. 1 on the line 12.31.
  • the wake-up signal is applied to a signal processor 12.4. which controls a switch SW that applies power to a data amplifier 12.6 in response to the wake-up signal, which the decoder only produces when N pulses at frequency F are detected.
  • the processor includes a microprocessor 12.6 that begins a command detection routine when the wake-up signal disappears (when the last pulse of the N + X pulses in signal TP disappears), and if the code is correct, the command is carried out, e.g. the doors are iocked or unlocked.
  • the data amplifier 20 though shown as a separate item, should be viewed as part of the signal processor "system" 18, but receives power separately from the battery.
  • the data amplifier 20 provides the signal DB to the processor I/O section on the line 20.1 as a signal DATA.
  • the processor initiates a decode routine of the signal DATA and sends a signal SIG. 2 to an alarm system 22 that controls the door locks 24.
  • the function associated with the command DB is completed (e.g. the door locks are latched or unlatched, the microprocessor again goes into its sleep mode; the power to the data amplifier and the microprocessor is removed by operating switch SW.

Landscapes

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

Abstract

Système d'entrée commandé à distance conçu pour un véhicule, tel qu'une automobile. Un processeur de signaux (18) peut couper l'alimentation des sections de traitement du processeur, tel qu'un amplificateur de données (12.6), afin de préserver le courant de la batterie. La séquence de coupure a lieu après la mise en application d'une fonction en réponse à une instruction provenant d'un émetteur manuel (10). La séquence de mise sous tension est déclenchée par la transmission au processeur d'un signal codé (N) lui commandant d'effectuer la mise sous tension. Un signal de données (DB) suit le signal de mise sous tension et provoque le déclenchement d'une fonction du processeur, telle que le déverrouillage des portes. Le processeur ne déclenche cette fonction qu'après la disparition du signal de mise sous tension. Le signal de mise sous tension est constitué par une pluralité d'impulsions codées de tonalité (TP). Un décodeur de tonalité décode lesdites impulsions, ainsi qu'un signal d'instruction (DB) depuis un signal électromagnétique démodulé.
PCT/US1993/005394 1992-06-08 1993-06-08 Systeme economique d'entree commande a distance WO1993025987A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6501632A JPH06509899A (ja) 1992-06-08 1993-06-08 省電力リモートキーレスエントリ
EP19930914408 EP0598107A4 (en) 1992-06-08 1993-06-08 Power saving remote keyless entry.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89547692A 1992-06-08 1992-06-08
US895,476 1992-06-08

Publications (1)

Publication Number Publication Date
WO1993025987A1 true WO1993025987A1 (fr) 1993-12-23

Family

ID=25404561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/005394 WO1993025987A1 (fr) 1992-06-08 1993-06-08 Systeme economique d'entree commande a distance

Country Status (3)

Country Link
EP (1) EP0598107A4 (fr)
JP (1) JPH06509899A (fr)
WO (1) WO1993025987A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785325A1 (fr) * 1996-01-20 1997-07-23 DIEHL GMBH & CO. Serrure activée par un porteur d'identité
WO1997042385A1 (fr) * 1996-05-07 1997-11-13 United Technologies Automotive, Inc. Systeme detecteur pour l'activation
DE19635279A1 (de) * 1996-08-30 1998-03-12 Siemens Ag Verfahren zum Senden und Empfangen von Licht- und Hochfrequenzsignalen
EP0873920A2 (fr) * 1997-04-23 1998-10-28 Code Alarm, Inc. Système de communication
FR2764419A1 (fr) * 1997-06-10 1998-12-11 Sagem Procede de gestion d'un recepteur de telecommande
FR2770925A1 (fr) * 1997-11-12 1999-05-14 Sagem Procede de transmission de telecommandes
WO2000004517A1 (fr) * 1998-07-17 2000-01-27 Leopold Kostal Gmbh & Co. Kg Procede permettant de mettre en circuit un element consommateur de courant a alimentation electrique et circuit electronique associe
GB2351618A (en) * 1999-04-20 2001-01-03 Siemens Ag Power saving switch circuit
AU743933B2 (en) * 1998-07-20 2002-02-07 Robert Bosch Gmbh An entry system
DE19939365C2 (de) * 1999-08-19 2002-10-24 Siemens Ag Verfahren und Anordnung zum Identifizieren einer zu einer Basisstation gehörenden Mobilstation
WO2003062026A1 (fr) * 2002-01-23 2003-07-31 Daimlerchrysler Ag Systeme de verrouillage, notamment d'un vehicule automobile
US7254725B2 (en) 2002-08-30 2007-08-07 Siemens Aktiengesellschaft Method for the power-saving control of a receiving device, in particular for an access control system for an automobile, and a corresponding receiving device
DE10056533B4 (de) * 2000-11-15 2016-12-22 Hella Kgaa Hueck & Co. Elektronische Fahrzeugschließanlage eines Kraftfahrzeugs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8531268B2 (en) 2008-05-15 2013-09-10 Lear Corporation Passive entry system for an automotive vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847614A (en) * 1986-10-29 1989-07-11 Wilhelm Ruf Kg Electronic remote control means, especially for centrally controlled locking systems in motor vehicles
US5109221A (en) * 1987-05-21 1992-04-28 Trw Inc. Remote control system for door locks
US5115236A (en) * 1987-11-18 1992-05-19 U.S. Philips Corporation Remote control system using a wake up signal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2253859A1 (de) * 1972-11-03 1974-05-09 Telefunken Fernseh & Rundfunk System zur fernbedienung eines elektrischen geraetes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847614A (en) * 1986-10-29 1989-07-11 Wilhelm Ruf Kg Electronic remote control means, especially for centrally controlled locking systems in motor vehicles
US5109221A (en) * 1987-05-21 1992-04-28 Trw Inc. Remote control system for door locks
US5115236A (en) * 1987-11-18 1992-05-19 U.S. Philips Corporation Remote control system using a wake up signal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0598107A4 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785325A1 (fr) * 1996-01-20 1997-07-23 DIEHL GMBH & CO. Serrure activée par un porteur d'identité
WO1997042385A1 (fr) * 1996-05-07 1997-11-13 United Technologies Automotive, Inc. Systeme detecteur pour l'activation
DE19635279A1 (de) * 1996-08-30 1998-03-12 Siemens Ag Verfahren zum Senden und Empfangen von Licht- und Hochfrequenzsignalen
DE19635279C2 (de) * 1996-08-30 2003-10-02 Siemens Ag Verfahren zum Senden und Empfangen von Licht- und Hochfrequenzsignalen
EP0873920A3 (fr) * 1997-04-23 2000-05-24 Code Alarm, Inc. Système de communication
EP0873920A2 (fr) * 1997-04-23 1998-10-28 Code Alarm, Inc. Système de communication
FR2764419A1 (fr) * 1997-06-10 1998-12-11 Sagem Procede de gestion d'un recepteur de telecommande
EP0884706A1 (fr) * 1997-06-10 1998-12-16 Sagem Sa Procédé de gestion d'un récepteur de télécommande
FR2770925A1 (fr) * 1997-11-12 1999-05-14 Sagem Procede de transmission de telecommandes
WO2000004517A1 (fr) * 1998-07-17 2000-01-27 Leopold Kostal Gmbh & Co. Kg Procede permettant de mettre en circuit un element consommateur de courant a alimentation electrique et circuit electronique associe
AU743933B2 (en) * 1998-07-20 2002-02-07 Robert Bosch Gmbh An entry system
GB2351618A (en) * 1999-04-20 2001-01-03 Siemens Ag Power saving switch circuit
DE19939365C2 (de) * 1999-08-19 2002-10-24 Siemens Ag Verfahren und Anordnung zum Identifizieren einer zu einer Basisstation gehörenden Mobilstation
US6754513B1 (en) 1999-08-19 2004-06-22 Siemens Aktiengesellschaft Method and configuration for identification of a mobile station associated with a base station
DE10056533B4 (de) * 2000-11-15 2016-12-22 Hella Kgaa Hueck & Co. Elektronische Fahrzeugschließanlage eines Kraftfahrzeugs
WO2003062026A1 (fr) * 2002-01-23 2003-07-31 Daimlerchrysler Ag Systeme de verrouillage, notamment d'un vehicule automobile
US6963794B2 (en) 2002-01-23 2005-11-08 Daimlerchrysler Ag Locking system for a motor vehicle
US7254725B2 (en) 2002-08-30 2007-08-07 Siemens Aktiengesellschaft Method for the power-saving control of a receiving device, in particular for an access control system for an automobile, and a corresponding receiving device
DE10240137B4 (de) * 2002-08-30 2009-01-15 Continental Automotive Gmbh Verfahren zur stromsparenden Ansteuerung einer Empfangsvorrichtung, insbesondere für ein Zugangskontrollsystem für ein Kraftfahrzeug, und entsprechende Empfangsvorrichtung

Also Published As

Publication number Publication date
EP0598107A4 (en) 1994-06-29
JPH06509899A (ja) 1994-11-02
EP0598107A1 (fr) 1994-05-25

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