JP2011226810A - Support device for attachment angle adjustment for on-vehicle radar device and method for adjusting attachment angle for on-vehicle radar device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support device for adjusting an attachment angle for an on-vehicle radar device capable of performing an axis adjustment with high accuracy.SOLUTION: A support device for attachment angle adjustment for an on-vehicle radar device 100 and a method using the same are provided. The support device for attachment angle adjustment for an on-vehicle radar device 100 includes a laser device 2 and irradiated members 3a and 3b containing target surfaces 30a and 30b. The irradiated members 3a and 3b are disposed at least on one side of either left or right side of a vehicle, and the laser device 2 is attached to the on-vehicle radar device 100 such that the target surfaces 30a and 30b of the irradiated members 3a and 3b are irradiated with a laser beam emitted by the laser device 2.

Description

  The present invention relates to a support device for adjusting the mounting angle of an in-vehicle radar device and a mounting angle adjusting method for the in-vehicle radar device. In particular, the present invention includes a laser device and an irradiated member including a target surface, the irradiated member is disposed in at least one of the left and right directions of the vehicle, and the laser device is irradiated with emitted laser light. The present invention relates to a support device for adjusting the mounting angle of an in-vehicle radar device, which is attached to the in-vehicle radar device so as to irradiate a target surface of a member, and a mounting angle adjusting method of the in-vehicle radar device using the same.

  It is known that a vehicle such as an automobile is provided with a radar device at the front of the vehicle in order to detect the presence or absence of the preceding vehicle and the distance from the preceding vehicle. In order to increase detection accuracy, such an on-vehicle radar device needs to be accurately attached to the front of the vehicle so that the radar wave axis or the optical axis coincides with the axle (the center axis of the vehicle body in the vehicle width direction).

  However, in the production line, the front part of the vehicle is already occupied by an adjustment device for adjusting the axis of the headlamp, such as video calibration, and a new device for adjusting the axis of the in-vehicle radar device is newly installed. Is difficult. For this reason, various mounting angle adjusting devices and methods for in-vehicle radar devices that do not require a large space in the front part of the vehicle have been proposed. For example, Japanese Patent Application Laid-Open No. 2008-268088 describes a radar device mounting angle adjusting device including a reflecting mirror and a corner reflector. In this apparatus, the laser light projected from the radar apparatus is reflected in the vertical direction by a reflecting mirror disposed in front of the vehicle, further reflected by a corner reflector, and returned to the reflecting mirror. The returned reflected light is received by the antenna of the radar device, and the mounting angle of the radar device is adjusted until the maximum reception level at the antenna becomes 0 °. In this apparatus, by arranging the corner reflectors in the vertical direction, the distance between the radar apparatus and the reflecting mirror is reduced while ensuring a predetermined detection distance necessary for checking the performance of the radar apparatus.

  Japanese Patent Application Laid-Open No. 2003-315442 discloses a vehicle-mounted radar including a vehicle front photographing camera device that outputs an optical axis mark that indicates the direction of an optical axis that is aligned with the vehicle axle, and a reflector that is disposed in front of the vehicle. An apparatus position adjusting apparatus and a position adjusting method using the apparatus position adjusting apparatus are described. A predetermined reference point is drawn on the reflection surface of the reflection device, the position of the reference point detected by the camera is matched with the optical axis mark, and the position of the reference point detected by the radar device and the optical axis mark are By matching, the mounting position of the in-vehicle radar device is adjusted. This avoids the need to install a measuring instrument or a reflecting member for accurately detecting the radio wave axis at a position away from the front of the vehicle.

  However, in the prior art including the above-described apparatus and method, it is still necessary to use a space in front of the vehicle in that a measurement object such as a reflecting mirror or a measurement instrument is arranged in front of the vehicle. In addition, it is necessary to introduce expensive equipment and complicated procedures in order to increase accuracy, which is not compatible with the requirements of mass production.

JP 2008-268088 JP 2003-315442 A

  Therefore, the object of the present invention is not necessary to newly install a device in front of the vehicle, and can be easily introduced into an existing production line, and does not require complicated equipment and procedures, so that it is suitable for mass production. Another object of the present invention is to provide a support device for adjusting the mounting angle of the on-vehicle radar device and a mounting angle adjusting method for the on-vehicle radar device.

  According to the first aspect of the present invention, the support device for adjusting the mounting angle of the on-vehicle radar device includes a laser device and an irradiated member including a target surface, and the irradiated member is a vehicle. The in-vehicle radar is disposed in at least one of the left and right directions of the in-vehicle radar, and the laser device is attached to the in-vehicle radar device so that emitted laser light is irradiated onto a target surface of the irradiated member. A support device for adjusting the mounting angle of the device is provided. According to this configuration, since the irradiated member is arranged in at least one of the left and right directions of the vehicle, it does not require a space in front of the vehicle as in the prior art, and can be easily incorporated into an existing production line. A support device for adjusting the mounting angle of the in-vehicle radar device can be provided.

  According to a second aspect of the present invention, there is provided the support device for adjusting the mounting angle of the on-vehicle radar device according to the first aspect, wherein the laser beam forms a linear image on the target surface. A support device for adjusting the mounting angle of the device is provided. According to this configuration, since the laser beam forms a linear image, it is possible to adjust the axis at once in the horizontal direction and the vertical direction by using one laser beam image.

  According to a third aspect of the present invention, there is provided a support device for adjusting the mounting angle of the on-vehicle radar device according to the first aspect, wherein a reference line is formed on the target surface. A support device for angle adjustment is provided. According to this configuration, since the reference line is formed on the target surface, the mounting angle of the in-vehicle radar device can be adjusted by aligning the image of the laser beam formed on the target surface of the irradiated member with the reference line. Can be adjusted. Therefore, complicated equipment as in the prior art is not required, and the adjustment work can be performed by a simple and inexpensive method.

  According to a fourth aspect of the present invention, there is provided a support device for adjusting the mounting angle of the on-vehicle radar device according to the first aspect, wherein the reflection for reflecting the laser beam of the laser device to irradiate the target surface. Provided is a support device for adjusting the mounting angle of an on-vehicle radar device provided with a mirror. According to this configuration, since the support device includes the reflecting mirror for reflecting the laser beam of the laser device and irradiating the target surface, there are other parts such as a bumper in the lateral direction of the laser device. In addition, for example, the laser light can be reflected by a reflecting mirror disposed below the laser device, and the reflected light can reach the target surface.

  According to a fifth aspect of the present invention, in the support device for adjusting the mounting angle of the on-vehicle radar device according to the first aspect, the irradiated members are respectively arranged in the left-right direction of the vehicle. An irradiated member and a second irradiated member, wherein the first irradiated member includes a first target surface that is irradiated with laser light of the laser device, and the second irradiated member is a laser of the laser device. A support device for adjusting the mounting angle of an in-vehicle radar device is provided, which includes a second target surface irradiated with light. According to this configuration, since the irradiated member is arranged in each of the left and right directions of the vehicle, more precise axis adjustment is possible particularly in the horizontal direction.

  According to a sixth aspect of the invention, there is provided a support device for adjusting the mounting angle of the in-vehicle radar device according to the fifth aspect, wherein the support device is formed on one of the first target surface and the second target surface. Provided is a support device for adjusting the mounting angle of the in-vehicle radar device, comprising display means for displaying the image of the laser beam on the other of the first target surface and the second target surface. According to this configuration, an image of the laser beam formed on one target surface can be displayed on the other target surface. Accordingly, the horizontal axis adjustment can also be performed by observing only one of the left and right directions of the vehicle, and the axis adjustment operation can be easily performed.

  According to a seventh aspect of the present invention, there is provided the support device for adjusting the mounting angle of the on-vehicle radar device according to the sixth aspect, wherein the display means includes specular reflection conversion means. A support device for adjustment is provided. According to this configuration, since the display unit includes the specular reflection conversion unit, it is possible to display the image on the other target surface by appropriately converting the coordinate image of either one of the target surfaces in the left-right direction of the vehicle. Therefore, it is possible to perform the axis adjustment work by observing only one of the left and right directions of the vehicle.

  According to the eighth aspect of the present invention, there is provided a method for adjusting the mounting angle of the on-vehicle radar device, the first step of arranging the irradiated member in at least one of the left and right directions of the vehicle, and the on-vehicle radar device mounted on the vehicle. A second step of attaching a laser device; a third step of forming an image of the laser beam on the target surface by irradiating the target surface of the irradiated member with the laser beam of the laser device; And a fourth step of adjusting an attachment angle of the in-vehicle radar device with respect to the vehicle based on a comparison between the formed reference line and the image of the laser beam. According to this configuration, since the irradiated member is arranged in at least one of the left and right directions of the vehicle, there is no need for a space in front of the vehicle as in the prior art, and the in-vehicle radar can be easily performed in the existing production line. The mounting angle of the device can be adjusted. In addition, since the reference line formed on the target surface of the irradiated member is compared with the image of the laser beam, the on-vehicle radar device can be obtained by aligning the laser light image formed on the target surface of the irradiated member with the reference line. The mounting angle can be easily adjusted. Therefore, complicated equipment as in the prior art is not required, and the adjustment work can be performed by a simple and inexpensive method.

  According to the ninth aspect of the present invention, there is provided the on-vehicle radar device mounting angle adjusting method according to the eighth aspect, wherein the laser beam image is linear. . According to this configuration, since the image of the laser beam is linear, it is possible to adjust the axis at once in the horizontal direction and the vertical direction using one image of the laser beam.

  According to a tenth aspect of the present invention, in the on-vehicle radar device mounting angle adjusting method according to the eighth aspect, the third step includes reflecting the laser beam of the laser device with a reflecting mirror to the target surface. A method for adjusting the mounting angle of an in-vehicle radar device is provided, which includes a step of irradiating the vehicle. According to this configuration, since the laser beam of the laser device can be reflected by the reflecting mirror, even if other components such as a bumper exist in the lateral direction of the laser device, for example, the laser device is disposed below the laser device. The laser beam can be reflected by the reflecting mirror, and the reflected light can reach the target surface.

  According to an eleventh aspect of the invention, there is provided a method for adjusting the mounting angle of the on-vehicle radar device according to the eighth aspect, wherein the irradiated member is disposed in the left-right direction of the vehicle. A second irradiated member, wherein the third step includes a step of irradiating the first target surface of the first irradiated member with a laser beam of the laser device; and a second irradiation of the laser beam of the laser device. A method of adjusting the mounting angle of the on-vehicle radar device, the method including irradiating a second target surface of the member. According to this configuration, since the irradiated member is arranged in each of the left and right directions of the vehicle, more precise axis adjustment is possible particularly in the horizontal direction.

  According to a twelfth aspect of the present invention, there is provided the method for adjusting the mounting angle of the on-vehicle radar device according to the eleventh aspect, wherein the laser light formed on one of the first target surface and the second target surface. A method for adjusting the mounting angle of an on-vehicle radar device is provided, including a step of displaying an image on the other of the first target surface and the second target surface. According to this configuration, since the image of the laser beam formed on one of the first target surface and the second target surface is displayed on the other of the first target surface and the second target surface, the horizontal direction This axis adjustment can also be performed by observing only one of the left and right directions of the vehicle, and the axis adjustment operation can be easily performed.

  According to a thirteenth aspect of the present invention, in the on-vehicle radar device mounting angle adjusting method according to the twelfth aspect, the displaying step is formed on one of the first target surface and the second target surface. A method for adjusting the mounting angle of an in-vehicle radar device is provided, which includes a step of performing specular reflection conversion on the image of the laser beam. According to this configuration, since the image of the laser beam formed on one of the first target surface and the second target surface is subjected to specular reflection conversion, an image of one of the target surfaces in the left-right direction of the vehicle is converted. By appropriately converting the coordinates, it can be displayed on the other target surface. Therefore, it is possible to perform the axis adjustment work by observing only one of the left and right directions of the vehicle.

  According to the present invention, since it is not necessary to newly install an appliance in front of the vehicle, it can be easily introduced into an existing production line, and complicated equipment and procedures are not required, which is suitable for mass production. A support device for adjusting the mounting angle of the in-vehicle radar device and a method for adjusting the mounting angle of the in-vehicle radar device can be provided.

It is a top view which shows roughly the structure of the assistance apparatus for the attachment angle adjustment of the vehicle-mounted radar apparatus by one Embodiment of this invention. It is a side view which shows roughly the structure of the assistance apparatus for the attachment angle adjustment of the vehicle-mounted radar apparatus by one Embodiment of this invention. It is a front view which shows roughly the structure of the assistance apparatus for the attachment angle adjustment of the vehicle-mounted radar apparatus by one Embodiment of this invention. It is the elements on larger scale of the 1st and 2nd target surface for demonstrating the attachment angle adjustment method of the vehicle-mounted radar apparatus by one Embodiment of this invention. It is the schematic which shows the structure of the assistance apparatus for the attachment angle adjustment of the vehicle-mounted radar apparatus by other embodiment of this invention. It is a figure which shows the procedure of the attachment angle adjustment method of the vehicle-mounted radar apparatus using the assistance apparatus for the attachment angle adjustment of the vehicle-mounted radar apparatus of FIG. It is the elements on larger scale of the target surface for demonstrating the attachment angle adjustment method of the vehicle-mounted radar apparatus by other embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[First Embodiment]
[Overview of the overall support system for adjusting the mounting angle of the in-vehicle radar system]

  FIG. 1 is a plan view schematically showing a support device 1 for adjusting the mounting angle of an in-vehicle radar device 100 according to an embodiment of the present invention. FIG. 1 shows a vehicle V arranged in a production line, for example, at a headlamp axis adjustment station. As shown in FIG. 1, in the headlamp axis adjustment station, a space A in front of the vehicle is usually a video calibration. Most of them are occupied by equipment for adjusting headlamps such as Therefore, it is difficult to newly incorporate equipment using the space in front of the vehicle as in the prior art into an existing production line. In the present invention, the mounting angle adjustment of the in-vehicle radar device 100 (in other words, the axis adjustment of the in-vehicle radar device 100) is performed mainly using the space in the left-right direction of the vehicle V.

Specifically, as shown in FIG. 1, a support device 1 (hereinafter referred to as support device 1) for adjusting the mounting angle of an in-vehicle radar device 100 according to an embodiment of the present invention is a shaft attached to the in-vehicle radar device 100. An adjustment laser device 2 and first and second irradiated members 3a and 3b that are irradiated with laser light from the laser device 2 are provided. The first and second irradiated members 3a and 3b are arranged in the left-right direction of the vehicle V. For this reason, the space ahead of a vehicle like the prior art is not required, but it can be easily incorporated into an existing production line.
[About laser equipment]

  The laser device 2 is a laser device for axis adjustment, and is attached to be removable from the outside of the in-vehicle radar device 100. Therefore, in the accompanying drawings, the laser device 2 and the in-vehicle radar device 100 are shown integrally at substantially the same position.

  The laser device 2 is attached to the in-vehicle radar device 100 so that the emitted laser light is irradiated to first and second target surfaces 30a and 30b (described later) of the first and second irradiated members 3a and 3b. As the laser device 2, it is practically preferable to attach two lasers one by one at a predetermined angle to the radar device 100 in the left-right direction, but the laser beam irradiation direction can be determined in advance. If so, a single laser can be used. The predetermined mounting angle of the laser device 2 with respect to the in-vehicle radar device 100 is such that the direction of the laser light emitted from the laser device 2 is perpendicular to the transmission / reception direction of the in-vehicle radar device 100 (in other words, the radar It is determined to be on a plane perpendicular to the transmission / reception direction of the device 100).

  As described above, the laser device 2 is attached to the in-vehicle radar device 100 so as to be detachable from the outside of the in-vehicle radar device 100. Therefore, after the shaft adjustment work is completed, the laser device 2 can be removed and used for another vehicle, and the same shaft adjustment work can be performed. For this reason, the installation expense for axis adjustment can be reduced significantly. The laser device 2 can be attached to the in-vehicle radar device 100 via an attachment or the like. The configuration of the attachment is particularly limited as long as the laser device 2 can be detachably attached to the in-vehicle radar device 100 and the laser device 2 can be attached to the in-vehicle radar device 100 at a predetermined angle. Absent. In the present embodiment, the axis adjustment of the in-vehicle radar device 100 is performed by irradiating the laser light of the laser device 2 to the first and second irradiated members 3a and 3b disposed in the left and right directions of the vehicle V, respectively.

As will be described later, the laser light emitted from the laser device 2 forms an image of the laser light on the first and second target surfaces 30a and 30b of the first and second irradiated members 3a and 3b. The image of the laser beam is preferably linear (see FIGS. 4A and 4B). Therefore, it is preferable that the laser light emitted from the laser device 2 has a linear beam shape. Further, the color of the laser beam and the size of the image are particularly limited as long as the color and size are visible on the first and second target surfaces 30a, 30b of the first and second irradiated members 3a, 3b. Absent.
[About irradiated member]

  The irradiated member used in the present invention is disposed in at least one of the left and right directions of the vehicle. In the present embodiment, two irradiated members, that is, the first irradiated member 3a and the second irradiated member 3b. Are arranged in the left-right direction of the vehicle V, respectively. As described above, the first irradiated member 3a and the second irradiated member 3b include the first target surface 30a and the second target surface 30b to which the laser beam of the laser device 2 is irradiated, respectively. As shown in FIG. 2, a straight reference line 10 is drawn vertically (in other words, in the vertical direction) on each target surface 30a, 30b, and the position of the reference line 10 is the stop of the vehicle V. Corresponds to the line 5 (see FIG. 1) (note that only the first target surface 30a is shown in FIG. 2, but a similar reference line 10 is also drawn on the second target surface 30b). The operator stands between the first target surface 30a and the second target surface 30b, and adjusts the fixing screw of the radar apparatus 100 while observing the left and right first target surfaces 30a and the second target surface 30b. The axis of the radar apparatus 100 is adjusted. Specifically, the operator adjusts the mounting angle of the radar apparatus 100 so that the images of the laser beams formed on the first and second target surfaces 30a and 30b are substantially aligned with the reference line 10. The radar wave axis or optical axis of the radar apparatus 100 is matched with the axle of the vehicle V.

  In the present embodiment, the reference line 10 is drawn at a position corresponding to the stop line 5 of the vehicle V. However, the reference line 10 need not necessarily correspond to the stop line 5 and can be drawn at another predetermined position.

  In addition, as above mentioned, the to-be-irradiated member used for this invention can be arrange | positioned only in either one of the left-right direction of a vehicle. However, in order to accurately adjust the axis in both the horizontal direction and the vertical direction, the two irradiated members 3a and 3b are arranged in the left and right directions of the vehicle V as in this embodiment. preferable. In particular, when the axis of the radar apparatus 100 is shifted in the horizontal direction, the horizontal shift of the laser light image with respect to the reference line 10 may be different between the left and right sides of the vehicle V. For this reason, by observing the target surfaces 30a and 30b in the left and right directions of the vehicle V, the axis adjustment in the horizontal direction in particular can be accurately performed.

The first and second irradiated members 3a and 3b may be made of materials, colors, dimensions, etc., as long as the laser beam images are formed on the first and second target surfaces 30a and 30b so as to be visible. There is no particular limitation.
[About the reflector]

  In the present embodiment, the support device 1 further includes a reflecting mirror 4 for reflecting the laser beam of the laser device 2 and irradiating the first and second target surfaces 30a and 30b. The on-vehicle radar device 100 to which the present invention is applied is usually provided between an engine room of a vehicle and a bumper, specifically, in a front grill or a bumper. Therefore, depending on the mounting position of the on-vehicle radar device 100, there may be other parts such as a bumper directly beside the laser device 2 (as viewed from the front of the vehicle). Direct irradiation to the second target surfaces 30a and 30b is prevented. In this embodiment, the reflecting mirror 4 for reflecting the laser beam is installed on the floor surface 500 of the production line. With this configuration, for example, the laser beam is irradiated from the laser device 2 toward the reflecting mirror 4 on the floor surface 500 as shown in FIG. 3 via the space on the back side of the bumper, and the reflected light is reflected from the first and second targets. The laser beam is reflected by the reflecting mirror 4 so as to reach the surfaces 30a and 30b. Thus, the axis adjustment work can be performed based on the reflected light images formed on the first and second target surfaces 30a and 30b.

  In addition, as long as the reflecting mirror 4 can reflect a laser beam toward the 1st and 2nd target surfaces 30a and 30b, it is not only the floor surface 500 of the above manufacturing lines but arbitrary height positions. Can be installed. However, as described above, the irradiation direction of the laser beam to the reflecting mirror 4 is perpendicular to the transmission / reception direction of the radar apparatus 100 (in other words, on a plane perpendicular to the transmission / reception direction of the radar apparatus 100). is there). Furthermore, the irradiation direction of the laser light on the reflecting mirror 4 (in other words, the incident angle of the laser light) is such that the reflected light reaches the first and second target surfaces 30a and 30b. It can be determined according to the positions of 30a and 30b. However, the positions of the first and second target surfaces 30a and 30b can also be determined according to the irradiation direction of the laser light from the laser device 2.

Depending on the mounting position of the on-vehicle radar device 100, there may be no other parts such as a bumper directly beside the laser device 2. In such a case, the reflecting mirror 4 may not be provided. In FIG. 3, examples of laser beam paths are indicated by arrows (1) to (3). (1) and (2) are examples in which laser light is irradiated substantially directly from the laser device 2 without being obstructed by components such as a bumper, and (3) is as in this embodiment. This is an example when the reflecting mirror 4 is used.
[How to adjust the mounting angle of in-vehicle radar equipment]

  Next, an embodiment of a method for adjusting the mounting angle of the in-vehicle radar device 100 of the present invention using the support device 1 having the above-described configuration will be described.

  The first and second irradiated members 3a and 3b are respectively arranged in the left and right direction of the vehicle V (first step), and the laser device 2 is attached to the in-vehicle radar device 100 attached to the vehicle V at a predetermined angle. (Second step). The laser beam of the laser device 2 is irradiated to the first and second target surfaces 30a and 30b of the first and second irradiated members 3a and 3b through the reflecting mirror 4, and the laser beams are irradiated to the target surfaces 30a and 30b. Images 300a and 300b are formed (third step). Based on the comparison between the reference line 10 and the laser light images 300a and 300b on the first and second target surfaces 30a and 30b, the mounting angle of the in-vehicle radar device 100 with respect to the vehicle V is adjusted (fourth step). Note that the first step and the second step are not necessarily performed in this order, and the laser device 2 is attached to the in-vehicle radar device 100 at a predetermined angle as the first step, and the irradiation direction of the laser light as the second step. The first and second irradiated members 3a and 3b may be positioned according to the above.

  Here, the comparison between the reference line 10 and the laser light images 300a and 300b in the fourth step will be specifically described. FIG. 4 shows the first and second target surfaces 30a and 30b observed by the operator, specifically, the reference line 10 formed on the first and second target surfaces 30a and 30b, Laser images 300a and 300b formed on the first and second target surfaces 30a and 30b by the laser device 2 are shown. (A) shows, for example, an image 300a of the laser beam irradiated on the first target surface 30a, and (B) shows an image 300b of the laser beam irradiated on the second target surface 30b. As shown in FIGS. 4A and 4B, the laser light images 300a and 300b are linear.

  As shown in FIG. 4, the image 300 a of the laser light irradiated on the first target surface 30 a is shifted to the left in the horizontal direction (in FIG. 4A) with respect to the reference line 10, and the reference line 10. It is inclined with respect to. On the other hand, the image 300b of the laser beam applied to the second target surface 30b is shifted to the right in the horizontal direction (in FIG. 4B) with respect to the reference line 10, and is inclined with respect to the reference line 10. ing. In the axis adjustment operation, the operator adjusts the fixing screw of the radar apparatus 100 until the laser light images 300a and 300b substantially align with the reference line 10 while observing the first and second target surfaces 30a and 30b. By doing so, the mounting angle of the radar apparatus 100 is adjusted. At this time, by making the laser light images 300 a and 300 b parallel to the reference line 10, the mounting angle of the radar apparatus 100 can be adjusted in the vertical direction, and the laser light images 300 a and 300 b overlap the reference line 10. Can be adjusted in the horizontal direction. In particular, when the axis of the radar apparatus 100 is shifted in the horizontal direction, the horizontal shift of the image of each laser beam with respect to the reference line 10 may differ between the left and right sides of the vehicle V. For this reason, as described above, by observing both the left and right target surfaces 30a, 30b, the axis adjustment in the horizontal direction in particular can be accurately performed. 4A and 4B, the left side of the radar apparatus 100 is located on the front side of the paper surface, the right side is located on the back side of the paper surface, and is inclined with respect to the vertical direction in FIG. It is an example when attached.

  In the present embodiment, since the laser light images 300a and 300b are linear, the horizontal and vertical axis adjustments can be performed at once by the method described above. If the image of the laser beam is punctiform, the inclination with respect to the reference line 10 cannot be detected (in that case, two or more laser beams are required for each target surface). In the present invention, the shape of the image of the laser beam (in other words, the beam shape of the laser beam) is such that the horizontal shift of the laser beam image with respect to the reference line 10 and the inclination with respect to the reference line 10 can be detected at a time. For example, a cross shape or the like may be used.

In the first embodiment, the axis adjustment of the in-vehicle radar device 100 is performed by observing the first and second target surfaces 30a and 30b on both sides in the left-right direction of the vehicle. However, according to the second embodiment of the present invention, the image of the laser beam formed on one of the first and second target surfaces 30a and 30b can be displayed on the other target surface 30a and 30b. it can. Thus, the operator can easily adjust the axis by observing only the target surface on either one of the left and right sides of the vehicle.
[Second Embodiment]

  The second embodiment of the present invention will be specifically described with reference to FIGS. FIG. 5 is a diagram showing an outline of the support device 20 for adjusting the mounting angle of the in-vehicle radar device 100 in the second embodiment of the present invention.

  As shown in FIG. 5, a support device 20 (hereinafter referred to as support device 20) for adjusting the mounting angle of the on-vehicle radar device 100 according to the second embodiment includes a laser device 2 attached to the on-vehicle radar device 100, and a laser device 2. Are provided with a first irradiated member 3a and a second irradiated member 3b each including a first target surface 30a and a second target surface 30b to which the first and second irradiated members 3a, 30b are irradiated. 3b is respectively arrange | positioned in the left-right direction of a vehicle. In the present embodiment, the configurations of the laser device 2 and the first and second irradiated members 3a and 3b are substantially the same as those described in the first embodiment.

  The support device 20 further displays an image of the laser beam formed on one of the first and second target surfaces 30a and 30b (the first target surface 30a in the present embodiment) as the first and second target surfaces. The display means 200 for displaying on the other (2nd target surface 30b in this embodiment) among 30a, 30b is provided. The display unit 200 includes a laser beam reading unit 11 for reading an image of the laser beam formed on one of the first and second target surfaces 30a and 30b (the first target surface 30a in the present embodiment), Image processing means (specular reflection conversion means in the present embodiment) 12 for image processing (specular reflection conversion in the present embodiment) of the read laser light data, and the second irradiated data after the image processing are performed. Data transfer means 13 for outputting to the data receiving means 14 on the member 3b side, data receiving means 14 for receiving the transferred image data, and image output for displaying the received image data on the second target surface 30b Means 15 are provided. In FIG. 5, the reflecting mirror 4 is not particularly shown, but as described in the first embodiment, depending on the mounting position of the radar device 100, there is a member or the like that prevents laser light irradiation right next to the laser device 2. In such a case, the reflecting mirror 4 may be used as appropriate.

  FIG. 6 shows an outline of a method for adjusting the mounting angle of the in-vehicle radar device 100 of the present invention using the support device 20 described above. In FIG. 6, the processes corresponding to the laser beam reading means 11, the specular reflection conversion means 12, the data transfer means 13, the data receiving means 14, and the image output means 15 are formed mainly on the first target surface 30a. A process for reading the image of the laser beam and displaying it on the second target surface 30b is shown. Since other configurations are substantially the same as those described in the first embodiment, detailed description thereof is omitted.

  In the second embodiment, as an example, laser light formed on the first target surface 30a of the first irradiated member 3a among the first and second irradiated members 3a and 3b arranged in the left-right direction of the vehicle, respectively. Is displayed on the second target surface 30b of the second irradiated member 3b. Hereinafter, the case where the image 300a shown in FIG. 4A of the first embodiment is displayed on the second target surface 30b will be described as an example. For this purpose, in the second embodiment, as shown in FIG. 6, the first target surface 30a of the first irradiated member 3a is irradiated with laser light from the laser device 2, and the first target surface 30a is irradiated with the laser beam shown in FIG. An image 300a of a laser beam as shown in A) is formed. Next, the image 300a on the first target surface 30a is scanned by the laser beam reading means 11 such as a camera or a scanner. Image data obtained by scanning is subjected to image processing, that is, specular reflection conversion, by the specular reflection conversion means 12 for display on the second target surface 30b of the second irradiated member 3b. In this specification, “specular reflection conversion” means that, for example, an image on the first target surface 30a is formed on the second target surface 30b in order to form a mirror image of the image of the laser light read by the laser light reading means 11. This means processing for converting the position coordinate data of the scanned image so that it is displayed at a position reversed in the left-right direction (in other words, a position symmetrical with respect to the reference line 10).

  The data after the specular reflection conversion is transferred to the data receiving unit 14 by the data transfer unit 13 and displayed on the second target surface 30b of the second irradiated member 3b by the image output unit 15. As the image output means 15, for example, a projection laser can be prepared in advance separately from the axis adjusting laser device 2. In this case, based on the position coordinate data transferred to the data receiving unit 14, the laser beam can be irradiated from the projection laser to the corresponding position on the second target surface 30b of the second irradiated member 3b.

  An example of the image of the laser beam observed on the second target surface 30b of the second irradiated member 3b in this case is shown in FIG. In FIG. 7, an image 300b corresponds to that shown in FIG. 4B shown for the first embodiment. On the other hand, the image 300a 'is displayed based on the coordinate data after the specular reflection conversion of the image 300a in FIG. If the coordinate data obtained by scanning the image 300a on the first target surface 30a is used as it is (that is, without performing specular reflection conversion) and output to the second target surface 30b, the image 300a is displayed at the position indicated by the dotted line in FIG. Appear. However, the image 300a displayed in this way is displayed at a position opposite to the position of the laser light actually irradiated on the first target surface 30a. Therefore, the image 300a in the horizontal direction with respect to the reference line 10 is displayed. Deviation and inclination also appear in the opposite direction to the actual one. In this embodiment, by using the coordinate data after specular reflection conversion, the actual positions (deviation and inclination of the reference line 10) of the laser beams on the left and right sides of the vehicle are accurately displayed on one target surface. ing. Thus, in the second embodiment, the operator can easily perform the axis adjustment work by observing the image of the laser beam obtained in the left-right direction of the vehicle only in one of the left-right direction of the vehicle. .

  In the example shown in FIG. 7, the image 300a ′ after the specular reflection conversion is perpendicular to the second target surface 30b in order to avoid the image 300a ′ after the specular reflection conversion being displayed overlapping the image 300b. It is displayed at the position translated in the direction. Thus, in this embodiment, coordinate conversion for translation may be performed as necessary in addition to specular reflection conversion. However, for example, coordinate conversion for parallel movement can be made unnecessary by adjusting the height position of the laser beam of the laser device 2 or the height position of the projection laser in advance.

  In the above embodiment, the laser beam reading unit 11 such as a scanner and the image output unit 15 such as a projection laser are both on the front side (in other words, on the vehicle side) of the first and second irradiated members 3a and 3b. However, the first irradiated member 3a is made of a light-transmitting material including the first target surface 30a, and the laser light reading means 11 is made of the first irradiated member 3a. The second irradiated member 3b may be made of a light-transmitting material including the second target surface 30b, and laser light may be emitted from the rear surface side of the second irradiated member 3b with a projection laser. May be irradiated. Further, the first and second irradiated members 3a and 3b may be electrical or electronic display devices such as an electric bulletin board. In this case, the coordinate-converted data can be plotted at a corresponding position on the electronic bulletin board without using a projection laser as the image output means 15.

  Further, the laser beam reading unit 11, the specular reflection conversion unit 12, the data transfer unit 13, the data reception unit 14, and the image output unit 15 are configured by a single camera device, and the first target surface 30a is scanned to the second target. A series of steps up to the output to the surface 30b may be performed by a single camera device.

  Further, image processing means such as the specular reflection conversion means 12 may be omitted. For example, based on the coordinate data scanned from the front side (in other words, the vehicle side) of the first irradiated member 3a, the laser beam can be irradiated with the projection laser from the back side of the second irradiated member 3b. Etc., the specular reflection conversion means 12 may be omitted.

  In the present embodiment, the determination for performing the axis adjustment of the radar apparatus 100 within the reference tolerance may be performed. In this case, the reference line 10 formed on the second target surface 30b is formed as a single vertical line having a predetermined width corresponding to the reference tolerance, and the laser light images 300a ′ and 300b have a vertical line width. The axis can be adjusted so that it is within the range. Alternatively, the reference line 10 is formed as two parallel vertical lines that are separated from each other by a predetermined distance, and the axis adjustment is performed so that the laser light images 300a ′ and 300b fall within the two vertical lines. Can do. In the present embodiment, the case where the image of the first target surface 30a is displayed on the second target surface 30b has been described. However, the image on the second target surface 30b is configured to be displayed on the first target surface 30a. You can also

  The present invention can be widely applied to the axis adjustment of an on-vehicle radar device mounted on a vehicle.

V Vehicle A Vehicle front space 5 Stop line 100 In-vehicle radar device 1, 20 Support device 2 for adjusting the mounting angle of the in-vehicle radar device Laser device 3 a First irradiated member 3 b Second irradiated member 30 a First target surface 30 b First 2 Target surfaces 300a, 300a ', 300b Laser light image 4 Reflector 10 Reference line 500 Floor surface 200 Display means 11 Laser light reading means 12 Specular reflection conversion means 13 Data transfer means 14 Data receiving means 15 Image output means (1) ~ (3) Path of laser beam

Claims (13)

A support device for adjusting the mounting angle of an on-vehicle radar device,
A laser device;
An irradiated member including a target surface,
The irradiated member is disposed in at least one of the left and right directions of the vehicle, and the laser device is attached to the in-vehicle radar device so that the emitted laser light is irradiated onto the target surface of the irradiated member. A support device for adjusting the mounting angle of an on-vehicle radar device. The support device for adjusting the mounting angle of the on-vehicle radar device according to claim 1, wherein the laser beam forms a linear image on the target surface. Support device for adjustment. The support device for adjusting the mounting angle of the in-vehicle radar device according to claim 1, wherein a reference line is formed on the target surface. Support device. The support device for adjusting the mounting angle of the on-vehicle radar device according to claim 1, further comprising a reflecting mirror for reflecting the laser beam of the laser device to irradiate the target surface. A support device for adjusting the mounting angle of the in-vehicle radar device. The support device for adjusting the mounting angle of the on-vehicle radar device according to claim 1, wherein the irradiated member is arranged in a left-right direction of the vehicle, respectively. And
The first irradiated member includes a first target surface to which the laser beam of the laser device is irradiated,
The support device for adjusting the mounting angle of the in-vehicle radar device, wherein the second irradiated member includes a second target surface to which the laser beam of the laser device is irradiated. The support device for adjusting the mounting angle of the on-vehicle radar device according to claim 5, wherein the image of the laser beam formed on one of the first target surface and the second target surface is the first target surface. A support device for adjusting the mounting angle of an on-vehicle radar device, comprising display means for displaying on one of the first target surface and the second target surface. 7. The support device for adjusting the mounting angle of the on-vehicle radar device according to claim 6, wherein the display means includes specular reflection conversion means. Support device. A mounting angle adjustment method for an on-vehicle radar device,
A first step of disposing an irradiated member in at least one of the left and right directions of the vehicle;
A second step of attaching a laser device to the on-vehicle radar device attached to the vehicle;
A third step of forming an image of the laser beam on the target surface by irradiating the target surface of the irradiated member with the laser beam of the laser device;
And a fourth step of adjusting an attachment angle of the in-vehicle radar device to the vehicle based on a comparison between a reference line formed on the target surface and the image of the laser beam. The method for adjusting the mounting angle of the on-vehicle radar device according to claim 8, wherein the image of the laser beam is linear. 9. The method for adjusting the mounting angle of an on-vehicle radar device according to claim 8, wherein the third step includes a step of irradiating the target surface by reflecting the laser beam of the laser device with a reflecting mirror. A method for adjusting the mounting angle of the on-vehicle radar device. The mounting angle adjustment method for an on-vehicle radar device according to claim 8, wherein the irradiated member is a first irradiated member and a second irradiated member, which are respectively arranged in a left-right direction of the vehicle,
The third step includes irradiating the first target surface of the first irradiated member with the laser light of the laser device and irradiating the second target surface of the second irradiated member with the laser light of the laser device. And a mounting angle adjusting method for the on-vehicle radar device. The method for adjusting the mounting angle of the on-vehicle radar device according to claim 11, wherein an image of the laser beam formed on one of the first target surface and the second target surface is represented by the first target surface and the second target surface. A mounting angle adjustment method for an on-vehicle radar device, comprising a step of displaying on the other of the second target surfaces. 13. The method for adjusting the mounting angle of the on-vehicle radar device according to claim 12, wherein the displaying step is performed by using an image of a laser beam formed on one of the first target surface and the second target surface as a mirror surface. A method for adjusting the mounting angle of an on-vehicle radar device, comprising a step of performing reflection conversion.

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