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WO2008058785A1 - Procédé d'ajustement d'une antenne directionnelle d'un système radar et système radar en vue de la mise en œuvre du procédé - Google Patents

Procédé d'ajustement d'une antenne directionnelle d'un système radar et système radar en vue de la mise en œuvre du procédé Download PDF

Info

Publication number
WO2008058785A1
WO2008058785A1 PCT/EP2007/059755 EP2007059755W WO2008058785A1 WO 2008058785 A1 WO2008058785 A1 WO 2008058785A1 EP 2007059755 W EP2007059755 W EP 2007059755W WO 2008058785 A1 WO2008058785 A1 WO 2008058785A1
Authority
WO
WIPO (PCT)
Prior art keywords
radar system
directional antenna
housing
coding
axis
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
PCT/EP2007/059755
Other languages
German (de)
English (en)
Inventor
Juergen Hildebrandt
Dieter Hoetzer
Bernhard Lucas
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of WO2008058785A1 publication Critical patent/WO2008058785A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4004—Means for monitoring or calibrating of parts of a radar system
    • G01S7/4026—Antenna boresight
    • G01S7/403—Antenna boresight in azimuth, i.e. in the horizontal plane
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4004—Means for monitoring or calibrating of parts of a radar system
    • G01S7/4026—Antenna boresight
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4004—Means for monitoring or calibrating of parts of a radar system
    • G01S7/4026—Antenna boresight
    • G01S7/4034—Antenna boresight in elevation, i.e. in the vertical plane
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4052—Means for monitoring or calibrating by simulation of echoes
    • G01S7/4082—Means for monitoring or calibrating by simulation of echoes using externally generated reference signals, e.g. via remote reflector or transponder
    • G01S7/4086—Means for monitoring or calibrating by simulation of echoes using externally generated reference signals, e.g. via remote reflector or transponder in a calibrating environment, e.g. anechoic chamber

Definitions

  • the present invention relates to a method for adjusting a directional antenna of a radar system and a radar system for carrying out the method, according to
  • PSS Predictive Safety System
  • the required security functions are based on the interaction of active ones
  • Safety systems such as an anti-lock braking system (ABS), an electronic stability program (ESP) and / or a hydraulic brake assistant (HBA) with a so-called “Adaptive Cruise Control” (ACC) provided radar sensor
  • ABS anti-lock braking system
  • ESP electronic stability program
  • HBA hydraulic brake assistant
  • ACC Adaptive Cruise Control
  • Such an adaptive distance control (ACC ) detects in a conventional manner preceding vehicles and their position or distance, determines their
  • Said radar sensor comprises a spatially relatively high-resolution radar sensor, which electromagnetic waves, in particular microwaves with Frequencies above some 100 MHz, used and which is located in the front of each vehicle to continuously monitor the area in front of the car. So that the radar sensor can measure with the necessary precision, the radar beams radiated by the radar sensor have to match as closely as possible with the dynamic driving axis of the vehicle.
  • each radar sensor Since different tolerances occur in the manufacture of a motor vehicle and in the subsequent mounting of the radar sensor on the finished vehicle, each radar sensor must be adjusted vertically and / or horizontally before it is put into operation in order to match the two axes mentioned as much as possible. The adjustment has to be made the more precise, the smaller and thus more accurate the resolution range of the radar sensor. In motor vehicles, an azimuthal minimum resolution of 0.5 ° is required to detect vehicles in front and possibly to track these vehicles.
  • the adjustment is carried out by means of two mounted on the radar sensor adjustment screws, being distinguished between so-called 'active' and 'passive' Justiermaschine.
  • the radar beams radiated by the radar sensor are reflected by a mirror and the adjustment is carried out on the basis of the reflections received by the radar sensor.
  • the said directional antenna is adjusted so that the radar signals reflected by the mirror assume a maximum reception level.
  • the adjustment again takes place by means of a mirror, wherein not the radar axis, but the axis of a sensor mounted on the mirror is aligned with respect to the driving axis.
  • a previously to be determined angular offset between the mirror and the radar axis is taken into account, the value of which is provided by a diagnostic device.
  • the passive adjustment by means of a laser wherein the housing axis of the radar sensor is brought by means of a sensor attached to the laser attachment with the driving axis in accordance.
  • a method and corresponding radar system according to the second method are described in the German patent application with the file number 196 42 811 C2 of the applicant.
  • the laser beam is preferably generated so that it at a known angle and at a known distance to a beam axis of said
  • the beam axis preferably serves the main beam axis of the directional antenna.
  • the adjustment of the directional antenna now takes place in such a way that the light beam illuminates a predetermined target mark.
  • the radar system described in the abovementioned prior application for carrying out said method has a device for receiving a laser source, such as a laser diode, which is permanently installed on the antenna or in the housing of the radar sensor or of the radar system.
  • a laser source such as a laser diode
  • the use of at least two laser beams is proposed, whereby in addition to the horizontal and vertical adjustment and an undesirable rotation of the main beam axis of the radar system can be detected.
  • Directional antenna radar system and a corresponding radar system to improve so that the adjustment process can be as simple, inexpensive, time-optimized and as precise as possible.
  • the present invention is based on the idea at the radar sensor described above, preferably on the said housing of the sensor, preferably from the outside - A -
  • Figure 1 is a schematic representation of a method used in the present invention, or a device for adjusting a directional antenna of a presently arranged on a motor vehicle radar system.
  • FIGS. 2a, b show a perspective view of two different embodiments of the radar system or radar sensor according to the invention.
  • Fig. 3 shows an embodiment of the method according to the invention for adjusting the directional antenna of the radar system shown in FIG. 2.
  • the laser source 34 includes a laser source 34.
  • the laser source may, for example, be attached to an adjustment cap, not shown, wherein the Justagekappe for the purpose of adjustment to the radar system 31 and a directional antenna having a radar sensor is temporarily attached.
  • the attachment of the radar system 31 in the same manner as the known attachment of car headlights and allows pivoting of the radar system 31 in both the horizontal and in the vertical axis.
  • a target marking 37 Opposite the vehicle 32 is a target marking 37, which, for example, is applied to a wall or screen 33.
  • the reference numeral 36 denotes the position of the radar system 31 relative to the target marker 37.
  • the vehicle 32 is parked at a known position in front of the screen 33, for example.
  • a Achsver horrsstand or by means of optical positioning using a headlamp adjuster where it only matters that the position of the vehicle 32 and the associated Position of the radar system 31 with respect to the target mark 37 is known.
  • the radar system 31 or a housing (not shown here) of a proposed radar sensor is pivoted such that the laser beam 35 illuminates the target marking 37.
  • the target marker 37 itself may, for example, represent a crosshair, a dot or one or more concentric circles.
  • the target mark 37 can also consist of an optical receiver, for example a photodiode.
  • the adjustment method described has the disadvantage that only the axis of said sensor housing is adjusted, but deviations between the optical axis of the radar sensor or provided in the sensor directional antenna and said housing axis are disregarded.
  • the offset angle between the housing axis and the radar axis in the manufacture of the radar system or of the radar sensor is measured in the factory and the determined data of the offset angle in the form of a coding on the sensor housing.
  • the coding per se can take place in different ways, for example by applying a color coding, a barcode or a letter / number combination (see FIG. 2a).
  • the mentioned Angle information in the form of target circles are applied under the marking of the said offset taking into account laser spot.
  • the application of the coding preferably takes place externally visible, for example on the sensor housing 200 or the sensor or antenna lens 205.
  • the coding is preferably applied permanently since it can be assumed that the said offset angle does not change over the lifetime of a sensor.
  • a method for applying the coding methods such as milling, punching, laser or the like., Or the application of additional material into consideration, since the respective manufacturing process for the present invention is not important.
  • Figures 2a and 2b show the already mentioned two embodiments of the radar system or sensor according to the invention in a perspective view.
  • the sensor housing 200 shown in FIG. 2 a which has on the front side a molding 230 for accommodating said antenna lens 205 inside the housing, has a color coding, a barcode or a letter / number key 210 in the upper area of the front cover.
  • the coding according to the invention is arranged in said mirror-reflecting region 215, in the form of a named target circle 220.
  • a laser target point 225 is entered in the target circle 220.
  • the described pivoting has to take place in such a way that the laser beam strikes a target circle (see FIG. 3) arranged on the wall (screen) 33, preferably in agreement with the drawn target point 225. This ensures that the said
  • an extended circular image 300 - 310 is recorded in the present embodiment, which is used similarly to a coordinate system.
  • the corresponding coding or the identical circular image attached to the sensor 215-225 is arranged so that, by reading the coding on the sensor, it becomes immediately clear where the laser beam of the laser source 34 has expanded
  • Circular pattern 300 - 310 must be made in case of a successful adjustment.
  • circuit diagram described is only one possible embodiment and grds.
  • Other forms of representation such as, for example, color gradients or a division into differently arranged target zones are conceivable.
  • the line 320 indicates the path of said laser beam emitted from a laser source 330 disposed on an adjustment cap 325.
  • Lines 335 and 340 denote the positioning marks already mentioned in connection with FIG. 1 for a vehicle 345 shown by way of example here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Dans un procédé d'ajustement d'une antenne directionnelle d'un système radar et en particulier d'un système radar à micro-ondes destiné à être utilisé sur ou dans des véhicules automobiles, dans lequel l'antenne directionnelle et/ou le système radar sont disposés dans un boîtier et pour détecter et/ou vérifier l'orientation de l'antenne directionnelle, on utilise au moins un faisceau laser. L'invention propose en particulier que l'orientation de l'antenne directionnelle soit réalisée en tenant compte d'un angle de décalage formé entre un axe du boîtier et un axe de l'antenne directionnelle. Les informations qui concernent ledit angle de décalage sont de préférence codées sur ledit boîtier et/ou sur l'antenne directionnelle.
PCT/EP2007/059755 2006-11-17 2007-09-17 Procédé d'ajustement d'une antenne directionnelle d'un système radar et système radar en vue de la mise en œuvre du procédé Ceased WO2008058785A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006054325.4 2006-11-17
DE102006054325A DE102006054325A1 (de) 2006-11-17 2006-11-17 Verfahren zum Justieren einer Richtantenne eines Radarsystems und Radarsystem zur Durchführung des Verfahrens

Publications (1)

Publication Number Publication Date
WO2008058785A1 true WO2008058785A1 (fr) 2008-05-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/059755 Ceased WO2008058785A1 (fr) 2006-11-17 2007-09-17 Procédé d'ajustement d'une antenne directionnelle d'un système radar et système radar en vue de la mise en œuvre du procédé

Country Status (2)

Country Link
DE (1) DE102006054325A1 (fr)
WO (1) WO2008058785A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8830119B2 (en) 2012-07-17 2014-09-09 Robert Bosch Gmbh Radar sensor alignment
DE102014113070A1 (de) * 2014-09-10 2016-03-10 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Justiervorrichtung und Verfahren zum Ausrichten eines Bauteils an einem Fahrzeug
US10591535B2 (en) 2018-04-09 2020-03-17 Rohde & Schwarz Gmbh & Co. Kg Measuring system with antenna alignment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8646823B2 (en) 2009-03-23 2014-02-11 Robert Bosch Gmbh Cover features for vehicle-mounted devices
DE102012201986B4 (de) * 2012-02-10 2024-10-10 Robert Bosch Gmbh Radarsensoreinrichtung mit Justierspiegel
KR101601486B1 (ko) 2014-09-17 2016-03-08 현대자동차주식회사 차량용 부품 자동 검사 장치 및 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19642811A1 (de) * 1996-10-17 1998-04-30 Bosch Gmbh Robert Verfahren zum Justieren einer Richtantenne eines Radarsystems und Radarsystem zur Durchführung des Verfahrens
DE19907592A1 (de) * 1999-02-22 2000-08-24 Volkswagen Ag Vorrichtung und Verfahren zur Justierung eines Abstandsmeßgeräts
DE10042105A1 (de) * 2000-07-12 2002-01-24 Volkswagen Ag Verfahren zum Justieren einer Richtantenne eines Radarsystems
US20040049930A1 (en) * 2002-09-17 2004-03-18 Snap-On Technologies, Inc. Apparatus for use with a 3D image wheel aligner for facilitating adjustment of an adaptive cruise control sensor on a motor vehicle
WO2005071434A1 (fr) * 2004-01-27 2005-08-04 Robert Bosch Gmbh Procede et dispositif pour realiser l'alignement angulaire d'un capteur dans un vehicule automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19642811A1 (de) * 1996-10-17 1998-04-30 Bosch Gmbh Robert Verfahren zum Justieren einer Richtantenne eines Radarsystems und Radarsystem zur Durchführung des Verfahrens
DE19907592A1 (de) * 1999-02-22 2000-08-24 Volkswagen Ag Vorrichtung und Verfahren zur Justierung eines Abstandsmeßgeräts
DE10042105A1 (de) * 2000-07-12 2002-01-24 Volkswagen Ag Verfahren zum Justieren einer Richtantenne eines Radarsystems
US20040049930A1 (en) * 2002-09-17 2004-03-18 Snap-On Technologies, Inc. Apparatus for use with a 3D image wheel aligner for facilitating adjustment of an adaptive cruise control sensor on a motor vehicle
WO2005071434A1 (fr) * 2004-01-27 2005-08-04 Robert Bosch Gmbh Procede et dispositif pour realiser l'alignement angulaire d'un capteur dans un vehicule automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8830119B2 (en) 2012-07-17 2014-09-09 Robert Bosch Gmbh Radar sensor alignment
DE102014113070A1 (de) * 2014-09-10 2016-03-10 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Justiervorrichtung und Verfahren zum Ausrichten eines Bauteils an einem Fahrzeug
DE102014113070B4 (de) 2014-09-10 2022-06-30 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Justiervorrichtung und Verfahren zum Ausrichten eines Bauteils an einem Fahrzeug
US10591535B2 (en) 2018-04-09 2020-03-17 Rohde & Schwarz Gmbh & Co. Kg Measuring system with antenna alignment

Also Published As

Publication number Publication date
DE102006054325A1 (de) 2008-05-21

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