EP0395596A2 - Diebstahlsicherungsvorrichtung, insbesondere für Kraftfahrzeuge - Google Patents

Diebstahlsicherungsvorrichtung, insbesondere für Kraftfahrzeuge Download PDF

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Publication number
EP0395596A2
EP0395596A2 EP90830168A EP90830168A EP0395596A2 EP 0395596 A2 EP0395596 A2 EP 0395596A2 EP 90830168 A EP90830168 A EP 90830168A EP 90830168 A EP90830168 A EP 90830168A EP 0395596 A2 EP0395596 A2 EP 0395596A2
Authority
EP
European Patent Office
Prior art keywords
control unit
state
main unit
message
activated
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.)
Ceased
Application number
EP90830168A
Other languages
English (en)
French (fr)
Other versions
EP0395596A3 (de
Inventor
Luigi Bianco
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.)
AUTONIX Srl
Original Assignee
AUTONIX Srl
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 AUTONIX Srl filed Critical AUTONIX Srl
Publication of EP0395596A2 publication Critical patent/EP0395596A2/de
Publication of EP0395596A3 publication Critical patent/EP0395596A3/de
Ceased 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
    • G07C9/00309—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
    • 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
    • G07C2009/00793—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 Hertzian waves
    • 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
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/08—With time considerations, e.g. temporary activation, valid time window or time limitations
    • 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
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
    • G07C2209/62—Comprising means for indicating the status of the lock

Definitions

  • the present invention relates in general to anti-theft systems and has been developed with particular attention to its possible use in anti-theft systems for motor vehicles.
  • the present invention is for use in an anti-theft system including a main unit for installation in a motor vehicle to control the anti-theft functions (the locking of the doors, the switching off of the ignition or the fuel supply, the switching on of audible and/or optical warning devices, etc.) and a mobile or control unit which enables the owner to activate and deactivate the anti-theft functions remotely.
  • a main unit for installation in a motor vehicle to control the anti-theft functions (the locking of the doors, the switching off of the ignition or the fuel supply, the switching on of audible and/or optical warning devices, etc.) and a mobile or control unit which enables the owner to activate and deactivate the anti-theft functions remotely.
  • the control unit communicates with the main unit by the emission of coded messages on radio-frequency, optical (infrared) or even ultrasound carriers.
  • coded messages on radio-frequency, optical (infrared) or even ultrasound carriers.
  • the emission of acoustic or optical messages by the motor vehicle typically a "flash" of the headlights and/or a short audible message
  • the motor vehicle typically a "flash" of the headlights and/or a short audible message
  • Another requirement is to frustrate attempted thefts carried out by recording the message used for communication from the control unit to the main unit. It is actually possible, particularly for someone carrying out systematic thefts of motor vehicles, to obtain receiving and recording means which can detect the messages in question (for example, by being positioned near a car park) and record them for subsequent use for deactivating the anti-theft system and stealing the vehicle.
  • the object of the present invention is to provide an anti-theft system which satisfies all the requirements mentioned above perfectly.
  • the system provides for at least one of the following measures: - the main unit is provided with a transmitter which can send the control unit a suitable message confirming the fact that the anti-theft system has been activated; this confirmation message is recorded in a memory in the control unit: this is a non-volatile memory (typically an EEPROM) produced by the manufacturer of the system in such a way that its state cannot be modified by the user acting only on the control unit; confirmation of the fact that the anti-theft system has been activated is therefore securely recorded in this memory whose contents can easily be displayed, for example, by means of an LED; if the vehicle is stolen, the owner can then demonstrate to his insurance company that the theft was perpetrated with the anti-theft system activated; - the control unit and the main unit use at least two different messages alternately for their intercommunication: the control unit sends the main unit a first message which activates the anti-theft system and sets it so that it can be deactivated only as result of the receipt of a second predetermined message
  • the system is constituted essentially by two parts, that is: - a main unit 2 for installation in the protected vehicle, and - a control unit 3 to be carried by the owner of the motor vehicle for the remote activation and deactivation of the anti-theft system.
  • the main unit 2 includes a processing module 4 (typically a microprocessor) which controls the anti-theft functions (the locking and unlocking of the door locks, the switching off of the ignition or the fuel injection, the switching on of any bells, etc.) generally indicated S.
  • a processing module 4 typically a microprocessor
  • Any display or warning members 5 are associated with the module 4.
  • the processing module 4 is also associated with a memory unit 7 in which at least one message corresponding to the message used for the dialogue with the control unit 3 is recorded in the form of strings of binary numbers. As will be made clearer below, at least two different binary messages are preferably stored in the memory 7 for use alternately.
  • the processing module 4 also has an input connected to a receiver 8 for receiving the messages transmitted by the control unit 3 and an output connected to a transmitter 9 for sending respective messages to the control unit 3, according to criteria which will be explained further below.
  • the receiver 8 and the transmitter 9 operate at radio frequency (UHF) using a binary code of the "on-off" type, usually comprising 24 bits plus an 8-bit introduction for synchronisation and a 6-bit check (check sum).
  • UHF radio frequency
  • transmitter-receiver pairs operating with optical carriers (infra-red) or with ultrasound carriers.
  • a hybrid form of communication is also possible with the use of different kinds of carriers for the two directions of transmission.
  • control unit 3 which also includes a processing module 10 (typically a microporcessor) with an output connected to a transmitter 11 and an input connected to a receiver 12.
  • processing module 10 typically a microporcessor
  • the latter components naturally have characteristics complementary to those of the receiver 8 and the transmitter 9 of the main unit 2 so as to ensure two-way communication.
  • the processing module 10 is also associated with a respective memory 13 and at least one activation button 14. The latter is used to activate and deactivate the system.
  • One or more display units 15 are also provided for giving the owner carrying the control unit 3 an indication of the state of the system.
  • the memory 13 is preferably constituted by an EEPROM-type unit, that is, a non-volatile memory formed so that it cannot be manipulated directly by anyone carrying the control unit 3 unless the unit 3 itself is broken into (which is immediately recognisable).
  • At least two messages are preferably stored in the memory 13, as in the memory 7 of the main unit 2, for use alternately for communication with the main unit 2.
  • step 102 the activation button 14 of the control unit 3.
  • step 102 the system is activated or not and, having recognised that it is initiallly deactivated, arranges for the transmitter to emit (step 103) one of the two messages recorded in the memory 13 (the first message).
  • This message is received and recognised by the receiver 8 (step 104) which transfers it to the processing module 4, and this in turn carries out several substantially simultaneous operations: - the recognition of the code received as the activation code (step 105), - the activation of the anti-theft system with the emission (according to known criteria) of respective control signals to the unit S, - the switching of the main unit 2 to the second message stored in the memories 7 and 13 so that the main unit 2 is arranged to deactivate the anti-theft system (unit S) only after receipt of the second message, and - the deactivation of the transmitter 9 with the emission of a confirmation message (constituted by the first message or by a suitable message different from the two messages stored in the memories 7 and 13) to the control unit 3 (step 106).
  • a confirmation message constituted by the first message or by a suitable message different from the two messages stored in the memories 7 and 13
  • the confirmation message is received and recognised by the receiver 12 (step 107) which transfers it to the processing module 10.
  • the latter in turn causes the switching of the control unit 3 to the second message so that it is set to emit the second message when the button 14 is operated subsequently, the recording of the receipt of the confirmation message (or the equivalent setting to operate with the second message) in the memory 13, preferably with a corresponding display on one of the LEDs 15 (step 108), and the subsequent switching off of the supply to the control unit (step 109).
  • the memory 13 acts as a witness of the fact that the anti-theft system has been activated. If the motor vehicle with the main unit 2 installed therein is stolen, the owner can at any rate demonstrate that the theft was perpetrated with the anti-theft system activated (the motor vehicle as whole being taken).
  • the control unit 3 is also arranged to wait a certain period of time (e.g. 1-5 seconds) for the response of the main unit 2 (this is achieved by making the unit 3 cycle through a selection stage 110 when the outcome of the reception test of step 107 is negative) and then to go directly to the switching-off step 109 (without carrying out the confirmation functions of step 108) when a confirmation message has not been received.
  • a certain period of time e.g. 1-5 seconds
  • the system can be deactivated only by the owner pushing the button 14 of the control unit 3 so as to cause (step 111) the emission of the second message.
  • This message is received and recognised by the main unit 2 (step 112) with the consequent deactivation of the system, together with the switching of the modules 4 and 10 back to the state in which they are set to operate with the first message and the cancellation of the information relating the activation of the system in the witness memory 13 (step 113).
  • the main unit 2, and particularly the functions of the processing module 4 which interfaces with the receiver 8, is formed so as to be sensitive not only to the prescribed deactivation message or messages, but also to messages quite close to them, for example, messages which differ by 5 bits or less.
  • the receipt of a "close” message is detected (step 114) and stored in a memory of the module 4.
  • the module 4 takes no action.
  • the main unit 2 detects the emission of another message which is also close to its own combination but different from the message received previously (test 115 positive).
  • this situation represents a clear indication that a theft is being attempted by means of a scanner.
  • the indication becomes even clearer if a third message similar to the combination and different from the first two messages is received.
  • the processing module 4 shuts down the main unit 2 (step 116), that is, it makes it insensitive to all messages received from the outside for a predetermined period of time, for example 30 seconds.
  • a theft attempted by means of a scanner is thus safely prevented: the power of a scanner actually lies in its ability to explore a large number of different possible combinations quickly in sequence and the shutting down of the system for at least 30 seconds makes this solution impracticable.
  • the temporary shut-down does not cause any inconvenience to the legitimate owner, even if (which is extremely improbable, as has been seen) the receipt of two different close messages in sequence results from the chance presence in the vicinity of two or more anti-theft systems with very similar combinations.
  • the selection stage 101 at the beginning of the flow chart of Figure 2 enables a single component (microprocessor) to be used for both the module 4 of the control unit and the module 10 of the main unit in the system according to the invention.
  • this component When this component is activated, the step 101 enables it to recognise which of the two different functions has been assigned to it.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
EP19900830168 1989-04-28 1990-04-17 Diebstahlsicherungsvorrichtung, insbesondere für Kraftfahrzeuge Ceased EP0395596A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8967315A IT1232082B (it) 1989-04-28 1989-04-28 Sistema antifurto perfezionato, particolarmente per autoveicoli
IT6731589 1989-04-28

Publications (2)

Publication Number Publication Date
EP0395596A2 true EP0395596A2 (de) 1990-10-31
EP0395596A3 EP0395596A3 (de) 1991-03-20

Family

ID=11301398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900830168 Ceased EP0395596A3 (de) 1989-04-28 1990-04-17 Diebstahlsicherungsvorrichtung, insbesondere für Kraftfahrzeuge

Country Status (2)

Country Link
EP (1) EP0395596A3 (de)
IT (1) IT1232082B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993017895A1 (en) * 1992-03-02 1993-09-16 Scarinus Development Ab A method and arrangement for remotely controlling one or more functions of a motor-driven vehicle
US5479154A (en) * 1990-04-06 1995-12-26 Siemens Aktiengesellschaft Process for operating a remote-controllable central locking installation of a vehicle
GB2309488A (en) * 1996-01-27 1997-07-30 Motorola Inc Vehicle security arrangement
WO2002040325A1 (de) * 2000-11-15 2002-05-23 Bayerische Motoren Werke Aktiengesellschaft Transponderschlüssel für eine elektronische wegfahrsperrenfunktion
US9075136B1 (en) 1998-03-04 2015-07-07 Gtj Ventures, Llc Vehicle operator and/or occupant information apparatus and method
US10011247B2 (en) 1996-03-27 2018-07-03 Gtj Ventures, Llc Control, monitoring and/or security apparatus and method
US10152876B2 (en) 1996-03-27 2018-12-11 Gtj Ventures, Llc Control, monitoring, and/or security apparatus and method
US10546441B2 (en) 2013-06-04 2020-01-28 Raymond Anthony Joao Control, monitoring, and/or security, apparatus and method for premises, vehicles, and/or articles
US10562492B2 (en) 2002-05-01 2020-02-18 Gtj Ventures, Llc Control, monitoring and/or security apparatus and method
US10796268B2 (en) 2001-01-23 2020-10-06 Gtj Ventures, Llc Apparatus and method for providing shipment information

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192665A (en) * 1986-07-18 1988-01-20 Neiman Security Products Limit Control apparatus
GB2209050A (en) * 1987-08-25 1989-04-26 Honda Motor Co Ltd Anti-theft system for a vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192665A (en) * 1986-07-18 1988-01-20 Neiman Security Products Limit Control apparatus
GB2209050A (en) * 1987-08-25 1989-04-26 Honda Motor Co Ltd Anti-theft system for a vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, vol. 35, no. 2, May 1988, pages 208-216, New York, US; M. HIRANO et al.: "Keyless entry system with radio card transponder" *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479154A (en) * 1990-04-06 1995-12-26 Siemens Aktiengesellschaft Process for operating a remote-controllable central locking installation of a vehicle
WO1993017895A1 (en) * 1992-03-02 1993-09-16 Scarinus Development Ab A method and arrangement for remotely controlling one or more functions of a motor-driven vehicle
US5563453A (en) * 1992-03-02 1996-10-08 Scarinus Development Ab Method and arrangement for remotely controlling one or more functions of a motor-driven vehicle
GB2309488A (en) * 1996-01-27 1997-07-30 Motorola Inc Vehicle security arrangement
US10011247B2 (en) 1996-03-27 2018-07-03 Gtj Ventures, Llc Control, monitoring and/or security apparatus and method
US10152876B2 (en) 1996-03-27 2018-12-11 Gtj Ventures, Llc Control, monitoring, and/or security apparatus and method
US9075136B1 (en) 1998-03-04 2015-07-07 Gtj Ventures, Llc Vehicle operator and/or occupant information apparatus and method
WO2002040325A1 (de) * 2000-11-15 2002-05-23 Bayerische Motoren Werke Aktiengesellschaft Transponderschlüssel für eine elektronische wegfahrsperrenfunktion
US6873061B2 (en) 2000-11-15 2005-03-29 Bayerische Motoren Werke Aktiengesellschaft Transponder key for an electronic drive-away blocking device function
US10796268B2 (en) 2001-01-23 2020-10-06 Gtj Ventures, Llc Apparatus and method for providing shipment information
US10562492B2 (en) 2002-05-01 2020-02-18 Gtj Ventures, Llc Control, monitoring and/or security apparatus and method
US10546441B2 (en) 2013-06-04 2020-01-28 Raymond Anthony Joao Control, monitoring, and/or security, apparatus and method for premises, vehicles, and/or articles

Also Published As

Publication number Publication date
IT1232082B (it) 1992-01-23
IT8967315A0 (it) 1989-04-28
EP0395596A3 (de) 1991-03-20

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