JP3245814U - Aiming device for calibrating driving assistance systems - Google Patents

Abstract

[Problem] In an aiming device for calibrating a driving support system built into a vehicle, the position and orientation of at least one aiming board in front of the vehicle are set in advance by the manufacturer of the driving support system to be calibrated. Easily and accurately adjust to the desired value. In an aiming device 10 for calibrating a driving support system 6, a base 14 is configured to support the aiming device 10 on the floor. Post 18 is supported by base 14 and extends substantially vertically. Support 22 is supported by column 18 and is attached to column 18 so as to extend substantially horizontally and to be movable along column 18 . The holding device 24 is attached to the support 22 so as to be movable along the support 22 . The holding device 24 is configured to hold at least one aiming board 12 and/or a radar reflector plate 30. [Selection diagram] Figure 2

Description

The present invention relates to an aiming device for calibrating a driving support system installed in an automobile.

BACKGROUND OF THE INVENTION In order to calibrate driving assistance systems, for example those often installed in automobiles, aiming devices are used, especially in factory areas, to calibrate one or more measuring boards (“aiming boards”). ”) used with. In order to calibrate the driving assistance system, each aiming board is formed with at least one optical pattern that is optically detected by an image capture device of the driving assistance system to be calibrated. In addition to the optical aiming board, a radar reflector plate may be provided in order to be able to calibrate the radar sensor.

In order to be able to calibrate the driving assistance system with the required accuracy, the position and orientation of the aiming board in front of the vehicle must be higher than the value preset by the manufacturer of the driving assistance system to be calibrated. Must be adjusted with precision.

DISCLOSURE OF THE INVENTION Therefore, an object of the present invention is to improve an aiming device for calibrating a driving assistance system built into an automobile, and to calibrate the position and orientation of at least one aiming board in front of the automobile. The purpose of the present invention is to make it possible to easily and accurately adjust to a value preset by the manufacturer of the driving support system.

The aiming device according to the present invention for calibrating a driving support system includes a base configured to support the aiming device on the floor, and a base configured to support the aiming device on the floor, and a base configured to support the aiming device on the floor, and a base configured to support the aiming device on the floor. a post extending from the post; a support supported by the post, extending substantially horizontally and movably attached to the post; and a support movable along the post; at least one holding device attached to the support and configured to hold at least one aiming board and/or radar reflector plate.

By means of an aiming device according to the invention, the position and orientation of at least one aiming board at the front of a motor vehicle can be maintained by moving a support in the vertical direction along the column and in the horizontal direction along this support. By moving the device, it is possible to easily and accurately adjust to the values preset by the manufacturer of the driving assistance system to be calibrated.

In one embodiment, the aiming device also includes a support device configured to support a support on the column and movable with the support in a vertical direction along the column. is attached to. In this way, the height of the support and thus also the height of the at least one aiming board attached to the support can be adjusted to the height required for calibrating the driving assistance system.

In one embodiment, the support device is configured such that the support is rotatable about at least two axes. The at least two axes are selected in particular such that the support can perform at least two types of movements selected from yaw movements, roll movements and pitch movements.

By means of the aiming device according to the invention, the support and also the aiming board attached to the support can be moved in a yaw motion, a roll motion and a pitch motion, without displacing the entire aiming device and/or the column of the aiming device. It becomes possible to perform two types of rotational movements. In this way, the yaw, roll and/or pitch angles of the aiming board can be adjusted simply and with high ergonomic precision by rotating the support about a corresponding axis.

In one embodiment, the aiming device is configured to be rotatable about three axes so that the support can perform yaw, roll and pitch movements. In such an embodiment, all three angles of the aiming board attached to the support can be adjusted easily and comfortably with high precision.

In one embodiment, the base comprises a bottom plate, which bottom plate has a diameter in the range 800 mm to 1000 mm, in particular in the range 818 mm to 1000 mm. Such a bottom plate provides high stability to the base and thus to the entire aiming device.

In one embodiment, the base comprises rollers or wheels that are attached to the bottom plate and allow the aiming device to be moved easily and comfortably across the floor of the measurement location. The rollers or wheels may be equipped with brakes that make it possible to fix the aiming device on the floor, for example by locking the rollers or wheels.

In one embodiment, the base comprises two adjustable adjustment bases that are attached to the bottom plate and that adjust the bottom plate by adjusting the adjustment base relative to the floor of the measurement location. allow it to be leveled. The adjustable adjustment base can in particular be formed in the rear region of the bottom plate, that is to say on the opposite side of the motor vehicle if the aiming device is positioned in a defined manner in front of the motor vehicle.

In one embodiment, the aiming device includes a spacer plate assembled to a column of the aiming device. With such a spacer plate, the aiming device can be accurately positioned in front of the vehicle, for example, by bringing the spacer plate into contact with the front of the vehicle.

In one embodiment, the aiming device comprises at least one image capture device, the at least one image capture device being provided on or in the support of a motor vehicle arranged in front of the aiming device. configured to take images. Two image recording devices may be provided on or in the carrier, which make it possible, in particular, to record stereo images of the motor vehicle. By means of the at least one image recording device, the position of the aiming device relative to a motor vehicle arranged in front of the aiming device can be determined and corrected or taken into account when calibrating the driving assistance system.

In one embodiment, the aiming device comprises a height adjustment device that makes it possible to move the support and the optional support device along the column, thereby increasing the height of the support above the floor. and the height of the aiming board attached to the support can be adjusted to the desired value.

In one embodiment, the height adjustment device comprises a tension spring having a spring force that compensates for at least part of the weight of the support and the aiming board attached to this support, thereby allowing the height adjustment device to This makes it easier to move the support.

In one embodiment, the height adjustment device comprises a clamping device that makes it possible to fix the support in a desired position along the column by tightening the support, thereby attaching the support to the support. The height of the aiming board is fixedly adjusted.

In one embodiment, the aiming device additionally includes a frame attached to the column. The frame may, for example, have a height H in the range 1000mm to 1200mm and a width B in the range 550mm to 650mm.

In one embodiment, a measuring ruler is mounted on the frame, which in particular extends in the vertical direction and reads with the measuring ruler the height of the support above the floor at the measuring location, with a high degree of accuracy. allows for adjustment.

In one embodiment, a support is attached to the frame, which makes it possible to place equipment required during calibration, for example a computer (laptop), on the aiming device.

In one embodiment, the aiming device comprises at least one aiming board attached to at least one holding device. The at least one aiming board may in particular be an optical aiming board provided with at least one pattern suitable for calibrating optical sensors of a driving assistance system.

In one embodiment, the aiming device includes at least one radar reflector plate configured to reflect a radar beam to calibrate the radar sensor.

The radar reflector plate may be attached to the support by at least one radar reflector holder.

Alternatively, the radar reflector plate may be attached to a column of the aiming device. The radar reflector plate may be attached to the column of the aiming device, in particular instead of the spacer plate.

Alternatively, the spacer plate can also be designed as a radar reflector plate.

Embodiments of the aiming device according to the present invention will be described below with reference to the accompanying drawings.

1 is a schematic plan view of a measurement location where a motor vehicle and an aiming device constructed according to the invention are present; FIG. 1 is a perspective front view of an aiming device constructed according to the present invention with an aiming board; FIG. 1 is a perspective front view of an aiming device constructed according to the present invention without an aiming board; FIG. It is a figure which shows the radar reflector holder provided for holding a radar reflector plate.

DESCRIPTION OF THE DRAWINGS FIG. 1 shows a schematic plan view of a measurement location 2 in which a motor vehicle 4 equipped with a driving assistance system 6 is present. The driving assistance system 6 also has at least one sensor 8, including for example an image recording device (camera) and/or a radar sensor.

An aiming device 10 is positioned in front of the automobile 4. This aiming device 10 comprises an aiming board 12 with an optical pattern (see FIG. 2) that can be detected optically by a sensor 8 formed as an image recording device, in order to calibrate the driving assistance system 6. ing. The aiming device 10 may be fitted with at least one radar reflector plate 30 for calibrating the radar sensor.

The aiming board 12 is normally oriented perpendicularly to the longitudinal axis F of the motor vehicle 4 .

FIG. 2 shows a perspective front view of an aiming device 10 constructed according to the present invention and equipped with an aiming board 12 for calibrating a driving support system 6 (see FIG. 1) incorporated in a vehicle 4. It is shown.

FIG. 3 shows a perspective front view of the aiming device 10 without the aiming board 12.

The aiming device 10 has a column 18 supported by a base 14. This column 18 extends substantially vertically.

The base 14 has a substantially horizontally oriented bottom plate 15. This bottom plate 15 may in particular have a diameter in the range 800 mm to 1000 mm, in particular in the range 818 mm to 1000 mm.

Two adjustable adjustment bases 17 are provided on the rear side or rear region in the figures of FIGS. 2 and 3. As shown in FIGS. These two adjustment bases 17 make it possible to horizontally position the bottom plate 15 so that it is oriented horizontally, or alternatively to horizontally position the bottom plate 15 so that the supports 18 It is possible to ensure that it is vertically oriented as precisely as possible.

A sensor (for example, a level) not shown in the drawings may be attached to the bottom plate 15 and/or the support column 18. This sensor makes it possible to orient the bottom plate 15 horizontally as precisely as possible or to orient the column 18 vertically as precisely as possible.

A plurality of rollers 16 are attached to the floor side surface of the bottom plate 15. These rollers 16 make it possible to move the aiming device 10 on the floor of the measurement location 2.

The roller 16 may be provided with a brake, which is not shown in the drawings. This brake can be activated to prevent the aiming device 10 from inadvertently starting to move after the aiming device 10 is positioned at a desired position in front of the automobile 4.

A spacer plate 13 is attached to the surface of the support column 18 facing the automobile 4. This spacer plate 13 may be brought into contact with the front of the motor vehicle 4 in order to align the aiming device 10 with respect to the motor vehicle 4 as precisely as possible.

The spacer plate 13 may be height-adjustably attached to the column 18, so that the vertical position of the spacer plate 13 can be adapted to different types of motor vehicles.

A holder 19 is attached to the column 18 and extends vertically in parallel to the column 18 .

Holder 19 supports support device 20 . This support device 20 is movable along the holder 19 in the vertical direction. The support device 20 may be fixed at different positions along the holder 19, ie at different heights above the floor of the measuring location 2, for example by a clamping device.

Support device 20 carries a support 22 that extends substantially perpendicularly to column 18, ie substantially horizontally.

A plurality of holding devices 24 are formed on the support body 22 . These holding devices 24 make it possible to attach at least one aiming board 12 to the support 22 . The holding device 24 may be movable along the support 22.

The holding device 24 and the at least one aiming board 12 may be configured such that, for example, the at least one aiming board 12 can be fixed in position to one of the plurality of holding devices 24 by magnetic force.

By moving the support device 20 along the column 18, the height of the support 22 above the floor of the measuring location 2 and thus also the height of the aiming board 12 attached to the support 22 can be varied, as desired. can be adjusted to the value of By moving the holding device 24 along the support 22, the position of the aiming board 12 attached to this support 22 can be changed in the horizontal direction.

In order to attach the large aiming board 12 to the support 22, a plurality of holding devices 24 may be combined with each other. In other words, one aiming board 12 , in particular one large aiming board 12 , may be attached to several holding devices 24 .

As shown in FIG. 2 , a hook-shaped aiming board holder 27 configured to receive the aiming board 12 may be attached to the support 22 .

On or in the support 22 an image of the vehicle 4 placed in front of the aiming device 10 is taken in order to be able to determine the position of the aiming device 10 relative to the vehicle 4. An image capturing device 29 or a camera module configured as described above may be provided.

In particular, two image capture devices 29 or camera modules may be provided. These two image capture devices 29 or camera modules are arranged on the support 22 on different sides of the column 18 and thus capture three-dimensional images of the vehicle 4 arranged in front of the aiming device 10. It makes it possible.

With such an image capturing device 29, it is possible to mechanically and automatically determine whether or not the aiming device 10 is positioned in an appropriate direction and position in front of the automobile 4. In this way, errors that may occur due to the aiming device 10 being incorrectly oriented and/or positioned in front of the motor vehicle 4 can be reliably avoided or corrected.

A tension spring, which cannot be seen in the drawings, may also be provided in or on the strut 18. This tension spring is mechanically coupled to the support device 20 to assist in the movement of the support device 20 along the column 18, and in particular in the upward movement of the support device 20 against gravity.

The support device 20 may be fixed in position on the column 18 at a desired position or height by means of a clamping device.

The support device 20 is further configured such that the support body 22 is rotatable about at least one axis G, R, N. The axes G, R, N include a yaw axis extending substantially vertically along the strut 18, a pitch axis N extending substantially horizontally along the support 22, and a pitch axis N extending substantially horizontally along the strut 18. A roll axis R extending in a direction perpendicular thereto and perpendicular to the support 22 (and substantially perpendicular to the drawing plane of FIGS. 2 and 3) is included.

By rotating the support 22 about at least one of the axes G, R, N, the yaw, roll and/or pitch angles of the aiming board 12 attached to the support 22 can be controlled. Adjustments can be made as preset by the manufacturer of the assistance system 6 to calibrate the driving assistance system 6.

In order to calibrate the driving support system 6, an optical pattern is formed on the aiming board 12, which is arranged to be optically detected by a sensor 8 formed as an image capture device of the driving support system 6. ing.

The optical pattern configuration shown in FIG. 2 is exemplary only. Depending on the requirements of the driving support system 6 to be calibrated, the aiming board 12 may be formed with a pattern different from the pattern shown in FIG. 2 .

In particular, different aiming boards 12 with different patterns may be present. In this case, depending on the driving support system 6 to be calibrated or the sensor 8 to be calibrated, an aiming board 12 suitable for each driving support system 6/sensor 8 is selected and attached to the support body 22. I can do it.

A frame 21 is also attached to the column 18, which facilitates handling of the aiming device 10. This frame 21 may have a height H within a range of 1000 mm to 1200 mm, and a width B within a range of 550 mm to 650 mm, for example.

Mounted on the frame 21 is a measuring ruler 23 which extends substantially parallel to the column 18 and perpendicular to the floor of the measuring station 2 . This measuring ruler 23 makes it possible to read the height of the support device 20 along the column 18 and adjust it to the desired value with high precision.

A mounting platform 25 is also attached to the frame 21, which extends horizontally substantially parallel to the floor of the measurement location 2.

For example, a computer, particularly a laptop, used when calibrating the driving support system 6 may be placed on the mounting table 25.

The aiming device 10 may be configured to incorporate a radar reflector plate 30 that makes it possible to calibrate a radar sensor 8 installed in the motor vehicle 4.

The radar reflector plate 30 is typically made of metal or coated with a metal layer.

In order to avoid or at least reduce interference effects that may be caused by the metallic components of the radar reflector plate 30, the radar reflector plate 30 is pre-aligned in front of the support 22 and/or below the support 22. They may be assembled at set intervals.

For this purpose, as shown in FIG. 4, a radar reflector holder 32 can be provided, which can be attached to the support 22 via a holding device 24.

Alternatively or additionally, instead of the spacer plate 13 , a radar reflector plate 30 may be attached to the column 18 of the aiming device 10 or the spacer plate 13 may be designed as a radar reflector plate 30 .

Claims (18)

An aiming device (10) for calibrating a driving support system (6), comprising:
a base (14) configured to support the aiming device (10) on a floor;
a substantially vertically extending post (18) supported by the base (14);
a support (22) supported by said strut (18), extending substantially horizontally and movably attached to said strut (18);
attached to said support (22) so as to be movable along said support (22) and configured to hold at least one aiming board (12) and/or radar reflector plate (30); and at least one holding device (24). The aiming device (10) has a support device (20), which is configured to support the support (22) and together with the support (22). Aiming device (10) according to claim 1, wherein the aiming device (10) is mounted on the column (18) so as to be movable along the column (18). The support device (20) has two axes (G, R, Aiming device (10) according to claim 2, configured to be rotatable about N). The support device (20) is configured to be rotatable about three axes (G, R, N) so that the support (22) can perform yaw, roll and pitch movements. The aiming device (10) according to claim 2, wherein the aiming device (10) is Any of claims 1 to 4, wherein said base (14) comprises a bottom plate (15), said bottom plate (15) having a diameter in the range from 800 mm to 1000 mm, in particular in the range from 818 mm to 1000 mm. Aiming device (10) according to item 1. Aiming device (10) according to claim 5, wherein the base (14) comprises a roller (14) attached to the bottom plate (15). The base (14) has at least one adjustable adjustment base (17), which is attached to the bottom plate (15) and allows the bottom plate (15) to Aiming device (10) according to claim 5 or 6, characterized in that the base (14) has two adjusting bases (17), which are particularly adjustable. Aiming device (10) according to any one of claims 1 to 7, comprising a spacer plate (13) assembled to the column (18) of the aiming device (10). On or in the support (22) at least one image configured to capture an image of a motor vehicle (4) arranged in front of the aiming device (10); From claim 1, wherein a recording device (29) is provided, in particular two image recording devices (29) are provided on or in the support (22). 8. Aiming device (10) according to any one of items 8 to 8. 10. According to one of claims 1 to 9, comprising a height adjustment device making it possible to move the support (22) and any supporting device present along the column (18). aiming device (10). Aiming according to claim 10, wherein the height adjustment device comprises a tension spring and a clamping device making it possible to fix the support (22) in a desired position along the column (18). Apparatus (10). Aiming device (10) according to one of the preceding claims, additionally comprising a frame (21) attached to the column (18). Aiming device (10) according to claim 12, wherein the frame (21) has a height H in the range 1000 mm to 1200 mm and/or a width B in the range 550 mm to 650 mm. Aiming device (10) according to claim 12 or 13, characterized in that a measuring ruler (23) extending in particular in the vertical direction and/or a support base (25) are attached to the frame (21). 1 . The at least one aiming board ( 12 ) attached to the at least one holding device ( 24 ), the at least one aiming board ( 12 ) being formed with an optical pattern. 1 . 15. The aiming device (10) according to any one of items 1 to 14. Aiming device (10) according to one of the preceding claims, comprising at least one radar reflector plate (30). Aiming device (10) according to claim 16, wherein the radar reflector plate (30) is attached to the support (22) by at least one radar reflector holder (32). The radar reflector plate (30) is attached to the strut (18) of the aiming device (10), and the radar reflector plate (30) is attached to the aiming device (10), in particular instead of a spacer plate (13). 17. Aiming device (10) according to claim 16, wherein the aiming device (10) is attached to the strut (18) of 10).