EP1217686A2 - Vorrichtung zur Justage der Hauptstrahlrichtung eines Radarsensors - Google Patents
Vorrichtung zur Justage der Hauptstrahlrichtung eines Radarsensors Download PDFInfo
- Publication number
- EP1217686A2 EP1217686A2 EP01122925A EP01122925A EP1217686A2 EP 1217686 A2 EP1217686 A2 EP 1217686A2 EP 01122925 A EP01122925 A EP 01122925A EP 01122925 A EP01122925 A EP 01122925A EP 1217686 A2 EP1217686 A2 EP 1217686A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- radar
- dielectric
- dielectric plate
- lens
- plate
- 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- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
- H01Q19/062—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for focusing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/14—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying the relative position of primary active element and a refracting or diffracting device
Definitions
- a device for adjusting the Main beam direction of a radar sensor.
- a radar sensor in vehicles, advantageously in the form of a distance sensor for adaptive Speed control, it is necessary after assembly of the radar sensor on the vehicle, the main beam direction of the Align the radar sensor exactly to the vehicle's longitudinal axis.
- the main beam direction of the sensor By tilting a dielectric plate that is movably attached between the radar source and the radar lens, you can change the main beam direction of the sensor.
- DE 196 42 810 C1 describes a radar system, in particular a motor vehicle radar system known in which for adjustment the main beam direction, the position of the transmitting / receiving elements of the radar system relative to one focusing means, which preferably as Antenna lens is formed, is changeable.
- DE 197 39 298 C1 discloses a device for Attachment of a distance sensor, in particular one Distance radars on a motor vehicle, the Distance sensor in a closed housing is housed, the housing being movable on a Holder is attached and wherein the holder is immovable on the Motor vehicle is attachable.
- the device is thereby characterized in that the housing with at least three L-shaped mutually arranged screws on the holder It can be fastened that the screws are installed the distance sensor can be screwed from the front and that for at least two of the screws one Protection against unscrewing is provided.
- the object of the present invention is a Describe device with which the main beam direction of a radar sensor can be precisely aligned.
- the radar base must be installed after the sensor has been installed Vehicle the sensor main beam direction exactly on the Longitudinal vehicle axis are aligned.
- the adjustment process should be designed so that the alignment can be carried out quickly, easily and permanently. According to the invention, this object is achieved through the features of Main claim solved.
- a dielectric, in particular plane-parallel, plate between the radar source and positioned the dielectric lens.
- the senor is simple Way, because there are large tolerance values, which can arise due to the simple manufacture, compensate by means of the device according to the invention to let.
- the dielectric, in particular plane-parallel, plate is movably mounted and with respect to the optical axis of the dielectric lens is tiltable. This makes directional corrections both in the azimuthal direction as well as in the elevation direction, each based on the optical axis of the dielectric Lens, possible.
- the location of the dielectric plate by at least one electric drive is adjustable, as this makes an automatic Self-adjustment of the sensor both at standstill and is realizable while driving.
- the surfaces of the dielectric plate are coated, in particular by the Provide so-called matching grooves on the surfaces or by applying a film of material.
- This Matching grooves are depressions on the surface of the dielectric body, especially in the form of parallel Grooves, their dimensions and spacing of the radar wavelength are adjusted.
- a film of material to the surfaces become. It is necessary that the intended Material film in terms of its thickness and its relative Dielectric constant is chosen so that the losses through the total transition from the plate over the material film in the air has minimal losses. Through these measures can the reflections that occur when the electromagnetic wave from the air into the lens and inside further course from the lens into the air, be minimized.
- the radar source, the dielectric lens and the dielectric plate directly or are indirectly connected to a common housing.
- the dielectric plate can be positioned relative to the housing, in particular pivotable, is.
- the radiation source (1) is shown, which consists of at least one antenna element (2).
- a dielectric lens (7) is also positioned in the main radiation direction of the antenna elements (4).
- the dielectric lens (7) is positioned in such a way that the optical axis (3) of the dielectric lens (7) coincides approximately with the main emission direction of the radiation source (4), as a rule this is the center beam for symmetrical beams.
- the distance of the dielectric lens (7) from the radiation source (1) corresponds approximately to the focal length of the lens (7).
- the lower limit beam (5) and the upper limit beam (6) limit the space that is mainly fulfilled by the radar beam.
- the plane-parallel, dielectric plate (8) is also fastened between the radiation source (1) and the dielectric lens (7).
- the center plane (15) of the dielectric, plane-parallel plate (8) is positioned such that it forms a right angle with the optical axis of the dielectric lens (3) or the main beam direction of the radar source (4). This position is also referred to as the neutral position since the radar beam is not influenced in its direction of propagation.
- the plane-parallel, dielectric plate (8) is movably supported by means of three ball joints (9, 10, 11) which are attached to the plate in a spatially distributed manner. This mounting allows the plate to be tilted in any direction within the mechanical limits.
- electric drives (12, 13) are attached to two (9, 10) of the three ball joints, which in turn are attached to the housing (14), which enables the plate to move in two dimensions.
- the third ball joint (11) is connected directly to the housing (14).
- FIG. 2 shows the same device, also in Side view, with tilted dielectric plate (8).
- the radiation source (1) can be seen here consists of at least one antenna element (2).
- the dielectric lens (7) which in a Distance, which is about the focal length of the lens, is fixed.
- the optical axis (3) of the dielectric lens (7) is again aligned so that it is identical to the The main radiation direction of the radiation source (4).
- the Central plane (17) of the plane-parallel, dielectric plate (8) is opposite in this case by the angle alpha (18) the center plane of the dielectric plate (15) in neutral Position tilted.
- dielectric plate (8) are all Rays of the radar beam (4,5,6) in their Beam path influenced.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aerials With Secondary Devices (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
- Figur 1
- eine Seitenansicht der beanspruchten Vorrichtung mit neutraler Stellung der dielektrischen Platte sowie
- Figur 2
- ebenfalls eine Seitenansicht der beanspruchten Vorrichtung mit gekippter, dielektrischer Platte zur Korrektur der Abstrahlungsrichtung.
Weiterhin sind an zwei (9,10) der drei Kugelgelenke Elektroantriebe (12,13) befestigt, die wiederum am Gehäuse (14) angebracht sind, wodurch eine zweidimensionale Bewegung der Platte ermöglicht wird. Das dritte Kugelgelenk (11), ist direkt mit dem Gehäuse (14) verbunden.
Claims (9)
- Vorrichtung zur Justage der Hauptstrahlrichtung eines Radarsensors, bestehend auseiner Radarquelle (1) zur Erzeugung eines Radarstrahlenbündels (4,5,6),einer dielektrischen Linse (7), die so angeordnet ist, dass deren optische Achse (3) in etwa in Hauptstrahlrichtung der Radarquelle (4) liegt, sowieeiner zwischen Radarquelle und dielektrischer Linse angeordneten, positionierbaren, insbesondere schwenkbaren, dielektrischen Platte (8).
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die dielektrische Platte (8) eine planparallele Platte ist.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die planparallelen Flächen der dielektrischen Platte bezüglich der optische Achse der dielektrischen Linse (3) schwenkbar sind.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die dielektrische Platte (8) an drei Punkten beweglich gelagert ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Justage der dielektrischen Platte (8) durch mindestens einen Elektroantrieb (9,10) erfolgt.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Oberflächen der dielektrischen Platte vergütet sind, insbesondere durch Vorsehen von Matching Grooves an den Oberflächen oder durch einen Materialfilm auf den Oberflächen.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass diese Anordnung zum Justieren eines Radarstrahls eines Radarsensors zur adaptiven Fahrgeschwindigkeitsregelung für Kraftfahrzeuge verwendet wird.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Radarquelle, die dielektrische Linse und die dielektrische Platte direkt oder indirekt mit einem gemeinsamen Gehäuse verbunden sind.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die dielektrische Platte relativ zum Gehäuse positionierbar, insbesondere schwenkbar, ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000165024 DE10065024A1 (de) | 2000-12-23 | 2000-12-23 | Vorrichtung zur Justage der Hauptstrahlrichtung eines Radarsensors |
DE10065024 | 2000-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1217686A2 true EP1217686A2 (de) | 2002-06-26 |
EP1217686A3 EP1217686A3 (de) | 2004-01-02 |
Family
ID=7668987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01122925A Withdrawn EP1217686A3 (de) | 2000-12-23 | 2001-09-25 | Vorrichtung zur Justage der Hauptstrahlrichtung eines Radarsensors |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1217686A3 (de) |
DE (1) | DE10065024A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009009227A1 (de) | 2008-02-21 | 2009-10-01 | Adc Automotive Distance Control Systems Gmbh | Verfahren zur automatischen Ausrichtung eines Strahlensensors in einem Fahrzeug |
EP2469649A1 (de) * | 2010-12-27 | 2012-06-27 | Thales | Funkfrequenzantenne mit mehrfachen Strahlungselementen zum Aussenden einer Richtungswelle mit variabler Ausbreitung |
CN111007513A (zh) * | 2018-10-04 | 2020-04-14 | 安波福技术有限公司 | 包括俯仰补偿的物体传感器 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3005983A (en) * | 1947-10-30 | 1961-10-24 | Charles H Chandler | Focussing and deflection of centimeter waves |
US3226721A (en) * | 1948-03-26 | 1965-12-28 | Sperry Rand Corp | Scanning antenna utilizing four rotary prisms to produce rectilinear scan and fifth rotary prism to produce conical scan |
US3887924A (en) * | 1950-06-30 | 1975-06-03 | Rca Corp | Scanning antenna |
EP0179687A1 (de) * | 1984-09-21 | 1986-04-30 | Thomson-Csf | Mittels rotierender Prismen abtastende Mikrowellenantenne |
DE19642810C1 (de) * | 1996-10-17 | 1998-04-02 | Bosch Gmbh Robert | Radarsystem, insbesondere Kraftfahrzeug-Radarsystem |
DE19650863C1 (de) * | 1996-12-07 | 1998-04-16 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Erkennung einer vertikalen Dejustierung eines Abstandssensors |
DE19739298C1 (de) * | 1997-09-08 | 1998-11-12 | Bosch Gmbh Robert | Vorrichtung zur Befestigung eines Entfernungssensors an einem Kraftfahrzeug |
-
2000
- 2000-12-23 DE DE2000165024 patent/DE10065024A1/de not_active Withdrawn
-
2001
- 2001-09-25 EP EP01122925A patent/EP1217686A3/de not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3005983A (en) * | 1947-10-30 | 1961-10-24 | Charles H Chandler | Focussing and deflection of centimeter waves |
US3226721A (en) * | 1948-03-26 | 1965-12-28 | Sperry Rand Corp | Scanning antenna utilizing four rotary prisms to produce rectilinear scan and fifth rotary prism to produce conical scan |
US3887924A (en) * | 1950-06-30 | 1975-06-03 | Rca Corp | Scanning antenna |
EP0179687A1 (de) * | 1984-09-21 | 1986-04-30 | Thomson-Csf | Mittels rotierender Prismen abtastende Mikrowellenantenne |
DE19642810C1 (de) * | 1996-10-17 | 1998-04-02 | Bosch Gmbh Robert | Radarsystem, insbesondere Kraftfahrzeug-Radarsystem |
DE19650863C1 (de) * | 1996-12-07 | 1998-04-16 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Erkennung einer vertikalen Dejustierung eines Abstandssensors |
DE19739298C1 (de) * | 1997-09-08 | 1998-11-12 | Bosch Gmbh Robert | Vorrichtung zur Befestigung eines Entfernungssensors an einem Kraftfahrzeug |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009009227A1 (de) | 2008-02-21 | 2009-10-01 | Adc Automotive Distance Control Systems Gmbh | Verfahren zur automatischen Ausrichtung eines Strahlensensors in einem Fahrzeug |
DE102009009227B4 (de) | 2008-02-21 | 2021-10-07 | Adc Automotive Distance Control Systems Gmbh | Verfahren zur automatischen Ausrichtung eines Strahlensensors in einem Fahrzeug |
EP2469649A1 (de) * | 2010-12-27 | 2012-06-27 | Thales | Funkfrequenzantenne mit mehrfachen Strahlungselementen zum Aussenden einer Richtungswelle mit variabler Ausbreitung |
FR2969833A1 (fr) * | 2010-12-27 | 2012-06-29 | Thales Sa | Antenne radiofrequence a elements rayonnants multiples pour emission d'une onde a direction de propagation variable |
CN111007513A (zh) * | 2018-10-04 | 2020-04-14 | 安波福技术有限公司 | 包括俯仰补偿的物体传感器 |
CN111007513B (zh) * | 2018-10-04 | 2024-03-15 | 安波福技术有限公司 | 包括俯仰补偿的物体传感器 |
Also Published As
Publication number | Publication date |
---|---|
DE10065024A1 (de) | 2002-07-04 |
EP1217686A3 (de) | 2004-01-02 |
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