DE10008989A1 - Theft protection arrangement, especially for motor vehicle, determining distance between distance sensor and transponder using radar signals reflected by transponder, and received again by distance sensor - Google Patents

Theft protection arrangement, especially for motor vehicle, determining distance between distance sensor and transponder using radar signals reflected by transponder, and received again by distance sensor

Info

Publication number
DE10008989A1
DE10008989A1 DE2000108989 DE10008989A DE10008989A1 DE 10008989 A1 DE10008989 A1 DE 10008989A1 DE 2000108989 DE2000108989 DE 2000108989 DE 10008989 A DE10008989 A DE 10008989A DE 10008989 A1 DE10008989 A1 DE 10008989A1
Authority
DE
Germany
Prior art keywords
distance sensor
transponder
theft device
radar signals
radar
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.)
Withdrawn
Application number
DE2000108989
Other languages
German (de)
Inventor
Sharmila Ghosh
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies 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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to DE20006831U priority Critical patent/DE20006831U1/en
Priority to DE2000108989 priority patent/DE10008989A1/en
Priority to EP01100466A priority patent/EP1127755A3/en
Publication of DE10008989A1 publication Critical patent/DE10008989A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1427—Mechanical actuation by lifting or attempted removal of hand-portable articles with transmitter-receiver for distance detection
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • 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
    • 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
    • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
    • G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle

Landscapes

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

Abstract

The arrangement includes at least one radar distance sensor (14), and a transponder (16) for a user identification, preferably formed as a chip card. The transponder receives radar signals (18) from the distance sensor, amplifies them, and emits them again, preferably on another frequency. The respective distance (d) between distance sensor and transponder is determined using the radar signals (20) reflected by the transponder, and received again by the distance sensor.

Description

Die Erfindung betrifft eine Antidiebstahlsicherung insbesondere für Fahr­ zeuge.The invention relates to an anti-theft device, in particular for driving witness.

Es sind bereits Chipkartensysteme für einen schlüssellosen Zugang (keyless entry) bekannt, bei denen mittels der den Schlüssel ersetzenden Chipkarte beispielsweise die Türen und der Kofferraum des betreffenden Kraftfahrzeugs geöffnet und dessen Motor gestartet werden kann. Dabei werden zwischen einem im Kraftfahrzeug integrierten Sender und der Chipkarte Sende- und Antwortsignale gewechselt. Bevor eine jeweilige Funktion ausgeführt werden kann, wird der von der Chipkarte übermit­ telte Identifikationscode geprüft.There are already chip card systems for keyless entry (keyless entry) are known, for which by means of the key replacing Chip card, for example, the doors and trunk of the person concerned Motor vehicle opened and the engine can be started. there are between a transmitter integrated in the motor vehicle and the Chip card transmission and response signals changed. Before each Function can be carried out by the chip card Telte identification code checked.

Bei derartigen Systemen besteht nun aber die Gefahr, daß die Chipkarte oder ein anderer vergleichbarer Antwortgeber (relay station) durch Unbe­ fugte imitiert wird, wodurch sich insbesondere die Diebstahlsgefahr ent­ sprechend erhöht.In such systems, there is now a risk that the chip card or another comparable responder (relay station) by Unbe Fugte is imitated, which entails in particular the risk of theft speaking increased.

Ziel der Erfindung ist es, eine zuverlässigere Antidiebstahlsicherung zu schaffen.The aim of the invention is to provide a more reliable anti-theft device create.

Zur Lösung dieser Aufgabe umfaßt die erfindungsgemäße Antidiebstahlsi­ cherung wenigstens einen Radar-Abstandssensor und einen beispielsweise als Chipkarte ausgeführten, der Benutzeridentifikation dienenden Trans­ ponder, der vom Abstandssensor ausgehende Radarsignale aufnimmt, verstärkt und vorzugsweise auf einer anderen Frequenz wieder ausstrahlt, wobei der jeweilige Abstand zwischen Abstandssensor und Transponder anhand der vom Transponder zurückgestrahlten und vom Abstandssensor wieder aufgenommenen Radarsignale ermittelbar ist.To solve this problem, the anti-theft device according to the invention comprises at least one radar distance sensor and one, for example executed as a chip card, the user identification Trans ponder, which records radar signals from the distance sensor,  amplified and preferably broadcasts again on a different frequency, the respective distance between the distance sensor and transponder on the basis of those reflected from the transponder and from the distance sensor resumed radar signals can be determined.

Aufgrund dieser Ausbildung ist die Gefahr eines Mißbrauchs bzw. eines Diebstahls auf ein Minimum reduziert. Anhand des jeweils ermittelten Ab­ stands zwischen Abstandssensor und Transponder kann die betreffende Auswerteeinheit die jeweilige Situation zuverlässig einschätzen, um erfor­ derlichenfalls zu verhindern, daß die betreffenden Funktionen ausgeführt werden und/oder oder Alarm ausgelöst wird.Because of this training there is a risk of abuse or abuse Theft reduced to a minimum. Based on the Ab determined The position between the distance sensor and the transponder can be affected Evaluation unit reliably assess the respective situation in order to if necessary, to prevent the relevant functions from being executed and / or or alarm is triggered.

Bei einer bevorzugten praktischen Ausführungsform der erfindungsgemä­ ßen Antidiebstahlsicherung liegen die vom Abstandssensor ausgehenden, in einer vorgebbaren Bandbreite ausgestrahlten Radarsignale im GHz- Bereich. Sie können beispielsweise im Bereich von etwa 24 GHz liegen.In a preferred practical embodiment of the invention The anti-theft device is located on the radar signals broadcast in a specifiable bandwidth in GHz Area. For example, they can be in the range of approximately 24 GHz.

Im Transponder werden die Radarsignale vorzugsweise um eine vorgebba­ re definierte Frequenz versetzt.In the transponder, the radar signals are preferably predetermined by one re defined frequency offset.

Von Vorteil ist auch, wenn die vom Transponder ausgehenden, vom Ab­ standssensor aufgenommenen Radarsignale im Abstandssensor um eine vorgebbare definierte Frequenz versetzt werden. Dabei werden diese Ra­ darsignale im Abstandssensor vorzugsweise nach unten versetzt.It is also an advantage if the outgoing from the transponder, from Ab level sensor recorded radar signals in the distance sensor by one predeterminable defined frequency are offset. In doing so, these Ra dar signals in the distance sensor preferably offset downwards.

Die erfindungsgemäße Antidiebstahlsicherung kann insbesondere Teil ei­ nes Sicherungssystems, vorzugsweise Chipkartensystems, für einen schlüssellosen Zugang (keyless entry system) sein. The anti-theft device according to the invention can in particular be egg Security system, preferably chip card system, for one be keyless entry system.  

Alternativ oder zusätzlich kann die erfindungsgemäße Antidiebstahlsiche­ rung auch Teil eines Innenraumschutzsystems und/oder Teil eines Ein­ bruchmeldesytems sein.Alternatively or additionally, the anti-theft device according to the invention can tion is also part of an interior protection system and / or part of an entrance break reporting systems.

Bei einer bevorzugten praktischen Ausführungsform der erfindungsgemä­ ßen Antidiebstahlsicherung ist der Radar-Abstandssensor in einem Kraft­ fahrzeug integriert.In a preferred practical embodiment of the invention The anti-theft device is the radar distance sensor in one vehicle integrated.

Von Vorteil ist auch, wenn der Abstandssensor und/oder der Antwortge­ ber bzw. Transponder für einen Zeitmultiplex-Betrieb ausgelegt sind, um vorzugsweise gleichzeitig mehrere Sicherungsfunktionen zu erfüllen.It is also advantageous if the distance sensor and / or the Reply via or transponders are designed for time-division multiplex operation, in order to preferably to perform several security functions simultaneously.

Als Abstandssensor kann beispielsweise ein FMCW-Radar- Abstandssensor vorgesehen ist. Dabei ist unter FMCW-Radar ein fre­ quenzmodulierter Dauerradar zu verstehen (FMCW = frequency modulated continuous wave).An FMCW radar, for example, Distance sensor is provided. There is a fre under FMCW radar to understand frequency-modulated permanent radar (FMCW) continuous wave).

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels un­ ter Bezugnahme auf die Zeichnung näher erläutert.The invention is un based on an embodiment ter explained in more detail with reference to the drawing.

Die einzige Figur der Zeichnung zeigt in rein schematischer Darstellung eine Antidiebstahlsicherung 10 für ein Kraftfahrzeug 12.The only figure in the drawing shows a purely schematic representation of an anti-theft device 10 for a motor vehicle 12 .

Die Antidiebstahlsicherung 10 umfaßt wenigstens einen Radar- Abstandssensor 14 und einen beispielsweise als Chipkarte ausgeführten, der Benutzeridentifikation dienenden Antwortgeber oder Transponder 16. The anti-theft device 10 comprises at least one radar distance sensor 14 and an answering device or transponder 16, for example a chip card designed for user identification.

Der beispielsweise als Chipkarte vorgesehene Transponder 16 nimmt die vom Abstandssensor 14 ausgehenden Radarsignale 18 auf, um diese zu verstärken und vorzugsweise auf einer anderen Frequenz wieder auszu­ strahlen.The transponder 16 , which is provided, for example, as a chip card, picks up the radar signals 18 emanating from the distance sensor 14 in order to amplify them and preferably to emit them again at a different frequency.

Der jeweilige Abstand d zwischen Abstandssensor 14 und Transponder 16 wird anhand der vom Transponder 16 zurückgestrahlten und vom Ab­ standssensor 14 wieder aufgenommenen Radarsignale 20 ermittelt, wozu in der betreffenden Auswerteeinheit eine entsprechende Laufzeitmessung erfolgen kann.The respective distance d between the distance sensor 14 and the transponder 16 is determined on the basis of the radar signals 20 reflected back by the transponder 16 and picked up again by the position sensor 14 , for which purpose a corresponding transit time measurement can be carried out in the relevant evaluation unit.

Die vom Abstandssensor 14 ausgehenden, in einer vorgebbaren Band­ breite ausgestrahlten Radarsignale 18 können insbesondere im GHz- Bereich und beispielsweise im Bereich von etwa 24 GHz liegen.The radar signals 18 emanating from the distance sensor 14 and emitted in a predefinable band can be in particular in the GHz range and, for example, in the range of approximately 24 GHz.

Die vom Transponder 16 aufgenommenen Radarsignale 18 werden um ei­ ne vorgebbare definierte Frequenz versetzt. Entsprechend werden im Ab­ standssensor 14 auch die vom Transponder 16 ausgehenden, vom Ab­ standssensor 18 aufgenommenen Radarsignale 20 um eine vorgebbare definierte Frequenz versetzt. Dabei werden die Radarsignale 20 im Ab­ standssensor 14 vorzugsweise nach unten versetzt.The radar signals 18 recorded by the transponder 16 are offset by a predefinable defined frequency. Correspondingly, in the position sensor 14 , the radar signals 20 emanating from the transponder 16 and picked up by the position sensor 18 are offset by a predefined, defined frequency. The radar signals 20 in the level sensor 14 are preferably offset downwards.

Die Antidiebstahlsicherung 10 kann insbesondere Teil eines Sicherungs­ systems, vorzugsweise Chipkartensystems, für einen schlüssellosen Zu­ gang sein. Alternativ oder zusätzlich kann sie auch Teil eines Innenraum­ schutzsystems und/oder Einbruchmeldesytems sein. The anti-theft device 10 can in particular be part of a security system, preferably a chip card system, for a keyless entry. Alternatively or additionally, it can also be part of an interior protection system and / or intrusion detection system.

Im vorliegenden Fall ist der Radar-Abstandssensor 14 in dem Kraftfahr­ zeug 12 integriert. Grundsätzlich kann das jeweilige Kraftfahrzeug auch mit mehreren solchen Sensoren versehen sein. Die betreffende Auswerte­ einheit kann beispielsweise durch die zentrale Steuereinheit oder einen Bordcomputer realisiert sein.In the present case, the radar distance sensor 14 is integrated in the motor vehicle 12 . In principle, the respective motor vehicle can also be provided with several such sensors. The relevant evaluation unit can be implemented, for example, by the central control unit or an on-board computer.

Der Abstandssensor 14 und/oder der Transponder 16 können für einen Zeitmultiplex-Betrieb ausgelegt sein, um vorzugsweise gleichzeitig mehrere Sicherungsfunktionen zu erfüllen. So können beispielsweise gleichzeitig auch ein Innenraumschutzsystem und ein Einbruchmeldesystem verwirk­ licht sein.The distance sensor 14 and / or the transponder 16 can be designed for time-division multiplex operation, in order to preferably perform several security functions simultaneously. For example, an interior protection system and an intrusion detection system can also be implemented simultaneously.

Als Abstandssensor 14 kann beispielsweise ein FMCW-Radar- Abstandssensor vorgesehen ist. Dabei ist unter FMCW-Radar ein fre­ quenzmodulierter Dauerradar zu verstehen (FMCW = frequency modulated continuous wave). For example, an FMCW radar distance sensor can be provided as the distance sensor 14 . FMCW radar is a frequency-modulated continuous radar (FMCW = frequency modulated continuous wave).

BezugszeichenlisteReference list

1010th

Antidiebstahlsicherung
Anti-theft protection

1212th

Kraftfahrzeug
Motor vehicle

1414

Radar-Abstandssensor
Radar distance sensor

1616

Transponder, Chipkarte
Transponder, chip card

1818th

Radarsignale
Radar signals

2020th

Radarsignale
d Abstand
Radar signals
d distance

Claims (12)

1. Antidiebstahlsicherung (10) insbesondere für Kraftfahrzeuge (12), mit wenigstens einem Radar-Abstandssensor (14) und einem vor­ zugsweise als Chipkarte ausgeführten, der Benutzeridentifikation dienenden Transponder (16), der vom Abstandssensor (14) ausge­ hende Radarsignale (18) aufnimmt, verstärkt und vorzugsweise auf einer anderen Frequenz wieder ausstrahlt, wobei der jeweilige Ab­ stand (d) zwischen Abstandssensor (14) und Transponder (16) an­ hand der vom Transponder (16) zurückgestrahlten und vom Ab­ standssensor (14) wieder aufgenommenen Radarsignale (20) ermit­ telbar ist.1. Anti-theft device ( 10 ), in particular for motor vehicles ( 12 ), with at least one radar distance sensor ( 14 ) and a transponder ( 16 ), which is preferably designed as a chip card and serves for user identification, and which emits radar signals ( 18 ) from the distance sensor ( 14 ). picks up, amplifies and preferably emits again at a different frequency, the respective position (d) between the distance sensor ( 14 ) and transponder ( 16 ) on the basis of the radar signals reflected by the transponder ( 16 ) and picked up again by the position sensor ( 14 ) ( 20 ) can be determined. 2. Antidiebstahlsicherung nach Anspruch 1, dadurch gekennzeichnet, daß die vom Abstandssensor (14) ausgehenden, in einer vorgebba­ ren Bandbreite ausgestrahlten Radarsignale (18) im GHz-Bereich liegen.2. Anti-theft device according to claim 1, characterized in that the radar signals ( 18 ) emanating from the distance sensor ( 14 ) and emitted in a predetermined bandwidth are in the GHz range. 3. Antidiebstahlsicherung nach Anspruch 2, dadurch gekennzeichnet, daß die vom Abstandssensor (14) ausgehenden, in einer vorgebba­ ren Bandbreite ausgestrahlten Radarsignale (18) im Bereich von et­ wa 24 GHz liegen. 3. Anti-theft device according to claim 2, characterized in that the radar signals ( 18 ) emanating from the distance sensor ( 14 ) and emitted in a predetermined bandwidth lie in the range of approximately 24 GHz. 4. Antidiebstahlsicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Radarsignale (18) im Transponder (16) um eine vorgebbare definierte Frequenz versetzt werden.4. Anti-theft device according to one of the preceding claims, characterized in that the radar signals ( 18 ) in the transponder ( 16 ) are offset by a predefinable defined frequency. 5. Antidiebstahlsicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die vom Transponder (16) ausgehenden, vom Abstandssensor (18) aufgenommenen Radarsignale (20) im Abstandssensor (14) um eine vorgebbare definierte Frequenz versetzt werden.5. Anti-theft device according to one of the preceding claims, characterized in that the radar signals ( 20 ) emanating from the transponder ( 16 ) and picked up by the distance sensor ( 18 ) are offset in the distance sensor ( 14 ) by a predefinable defined frequency. 6. Antidiebstahlsicherung nach Anspruch 5, dadurch gekennzeichnet, daß die Radarsignale (20) im Abstandssensor (14) nach unten ver­ setzt werden.6. Anti-theft device according to claim 5, characterized in that the radar signals ( 20 ) in the distance sensor ( 14 ) are set ver down. 7. Antidiebstahlsicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie Teil eines Sicherungssystems, vorzugsweise Chipkartensy­ stems, für einen schlüssellosen Zugang ist.7. Anti-theft device according to one of the preceding claims, characterized, that they are part of a security system, preferably chip card system stems, for keyless entry. 8. Antidiebstahlsicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie Teil eines Innenraumschutzsystems ist.8. Anti-theft device according to one of the preceding claims, characterized, that it is part of an interior protection system. 9. Antidiebstahlsicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie Teil eines Einbruchmeldesystems ist. 9. Anti-theft device according to one of the preceding claims, characterized, that it is part of a burglar alarm system.   10. Antidiebstahlsicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Radar-Abstandssensor (14) in einem jeweiligen Kraftfahr­ zeug (12) integriert ist.10. Anti-theft device according to one of the preceding claims, characterized in that the radar distance sensor ( 14 ) in a respective motor driving tool ( 12 ) is integrated. 11. Antidiebstahlsicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Abstandssensor (14) und/oder der Transponder (16) für ei­ nen Zeitmultiplex-Betrieb ausgelegt sind, um vorzugsweise gleich­ zeitig mehrere Sicherungsfunktionen zu erfüllen.11. Anti-theft device according to one of the preceding claims, characterized in that the distance sensor ( 14 ) and / or the transponder ( 16 ) are designed for egg NEN multiplexing operation, in order to preferably preferably perform several security functions simultaneously. 12. Antidiebstahlsicherung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß als Abstandssensor (14) ein FMCW-Radar-Abstandssensor vor­ gesehen ist.12. Anti-theft device according to one of the preceding claims, characterized in that an FMCW radar distance sensor is seen as a distance sensor ( 14 ).
DE2000108989 2000-02-25 2000-02-25 Theft protection arrangement, especially for motor vehicle, determining distance between distance sensor and transponder using radar signals reflected by transponder, and received again by distance sensor Withdrawn DE10008989A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE20006831U DE20006831U1 (en) 2000-02-25 2000-02-25 Anti-theft protection
DE2000108989 DE10008989A1 (en) 2000-02-25 2000-02-25 Theft protection arrangement, especially for motor vehicle, determining distance between distance sensor and transponder using radar signals reflected by transponder, and received again by distance sensor
EP01100466A EP1127755A3 (en) 2000-02-25 2001-01-08 Antitheft device and security system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000108989 DE10008989A1 (en) 2000-02-25 2000-02-25 Theft protection arrangement, especially for motor vehicle, determining distance between distance sensor and transponder using radar signals reflected by transponder, and received again by distance sensor

Publications (1)

Publication Number Publication Date
DE10008989A1 true DE10008989A1 (en) 2001-09-06

Family

ID=7632457

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000108989 Withdrawn DE10008989A1 (en) 2000-02-25 2000-02-25 Theft protection arrangement, especially for motor vehicle, determining distance between distance sensor and transponder using radar signals reflected by transponder, and received again by distance sensor

Country Status (1)

Country Link
DE (1) DE10008989A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10237331A1 (en) * 2002-08-14 2004-03-04 Siemens Ag Method for measuring distance between vehicle and obstacle, has microwave sensor using time delay to determine distance
WO2004114227A1 (en) 2003-06-25 2004-12-29 Philips Intellectual Property & Standards Gmbh Method and arrangements for increasing the security of transponder systems, particularly for access to automobiles
US8643510B2 (en) 2008-01-31 2014-02-04 Continental Teves Ag & Co. Ohg Vehicle key
DE102017113452B4 (en) 2016-06-23 2022-01-13 GM Global Technology Operations LLC Radar-based environment protection and control for a vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454512A (en) * 1979-05-23 1984-06-12 Michael Millett Secondary radar system
US5293160A (en) * 1989-11-02 1994-03-08 Nissan Motor Company, Ltd. Keyless vehicle lock system with distance measuring
DE4409167C1 (en) * 1994-03-17 1995-06-29 Siemens Ag Remote-controlled centralised locking system for automobile
DE4440855A1 (en) * 1994-11-15 1996-05-30 Oliver Simons Proximity-sensitive access control system
US5783989A (en) * 1992-05-22 1998-07-21 Issa; Darrell E. Alarm sensor multiplexing
DE19832204A1 (en) * 1998-07-17 2000-01-20 Kostal Leopold Gmbh & Co Kg Keyless access control in motor vehicle using carrier medium, whose characteristics are changed during transmission of data telegram
DE19839696C2 (en) * 1998-09-01 2000-05-31 Kostal Leopold Gmbh & Co Kg Method for performing keyless access control and keyless access control device
DE19846803C1 (en) * 1998-10-10 2000-09-07 Daimler Chrysler Ag Process for establishing access authorization to a motor-driven vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454512A (en) * 1979-05-23 1984-06-12 Michael Millett Secondary radar system
US5293160A (en) * 1989-11-02 1994-03-08 Nissan Motor Company, Ltd. Keyless vehicle lock system with distance measuring
US5783989A (en) * 1992-05-22 1998-07-21 Issa; Darrell E. Alarm sensor multiplexing
DE4409167C1 (en) * 1994-03-17 1995-06-29 Siemens Ag Remote-controlled centralised locking system for automobile
DE4440855A1 (en) * 1994-11-15 1996-05-30 Oliver Simons Proximity-sensitive access control system
DE19832204A1 (en) * 1998-07-17 2000-01-20 Kostal Leopold Gmbh & Co Kg Keyless access control in motor vehicle using carrier medium, whose characteristics are changed during transmission of data telegram
DE19839696C2 (en) * 1998-09-01 2000-05-31 Kostal Leopold Gmbh & Co Kg Method for performing keyless access control and keyless access control device
DE19846803C1 (en) * 1998-10-10 2000-09-07 Daimler Chrysler Ag Process for establishing access authorization to a motor-driven vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10237331A1 (en) * 2002-08-14 2004-03-04 Siemens Ag Method for measuring distance between vehicle and obstacle, has microwave sensor using time delay to determine distance
WO2004114227A1 (en) 2003-06-25 2004-12-29 Philips Intellectual Property & Standards Gmbh Method and arrangements for increasing the security of transponder systems, particularly for access to automobiles
US8643510B2 (en) 2008-01-31 2014-02-04 Continental Teves Ag & Co. Ohg Vehicle key
DE102017113452B4 (en) 2016-06-23 2022-01-13 GM Global Technology Operations LLC Radar-based environment protection and control for a vehicle

Similar Documents

Publication Publication Date Title
DE10121519B4 (en) Ultrasonic obstacle detector
EP0992408B1 (en) Method to provide access authorization to a motor vehicle
EP1054371B1 (en) Automatic alertsystem for vehicles
DE19957549C2 (en) Anti-theft protection system for a motor vehicle and method for operating an anti-theft protection system
DE102005018487B4 (en) Method for operating a monitoring and alarm device in parked vehicles and monitoring and alarm device
DE19957536A1 (en) Anti-theft protection system for a motor vehicle and method for operating an anti-theft protection system
DE4123654A1 (en) METHOD FOR DETECTING A PORTABLE TRANSPONDER INCLUDED IN THE VEHICLE
DE10353589A1 (en) Method for automatic remote locking of a vehicle
DE19941351A1 (en) Position detection for radio keys
WO2004057542A1 (en) Vehicle security system
DE102017119042A1 (en) Prevention of blind spot warnings due to spray
EP0965057A1 (en) Ultrasound distance measuring system with digital measuring signals transmitted by time multiplexing
EP1771748B1 (en) Method and apparatus for locating a mobile transmitter embodied as an identification device, especially a vehicle key
DE10008989A1 (en) Theft protection arrangement, especially for motor vehicle, determining distance between distance sensor and transponder using radar signals reflected by transponder, and received again by distance sensor
DE19911459C2 (en) Motor vehicle control system and method for controlling at least two motor vehicle functions
WO2022033980A1 (en) Method for recognizing road users in an environment of a vehicle on the basis of measurements of a radar sensor, by identifying faulty detections, and computing device
EP3617009B1 (en) System and method for detecting the locking and / or functional state of a safety belt system
EP1431776A1 (en) Method for the determination of the length of an object with a radar system
DE102006044697B4 (en) Seat occupancy detection, in particular with an RFID circuit
DE19540833C1 (en) Theft protection device for motor vehicles
EP1127755A2 (en) Antitheft device and security system
EP0799753A2 (en) Method and device for locating vehicles
EP1834850A1 (en) Method to monitor a vehicle interior
DE10237331A1 (en) Method for measuring distance between vehicle and obstacle, has microwave sensor using time delay to determine distance
EP0826567B1 (en) Device for monitoring the interior of a transport container

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee