JP6245680B2 - Method for adjusting the rotation posture of an object, and posture adjustment jig - Google Patents

Description

  The present invention relates to a method for adjusting the rotational posture of an object and a posture adjusting jig.

  In recent years, vehicle driving support systems such as ACC (Adaptive Cruise Control) and PSS (Predictive Safety System) have been developed.

  ACC is a system that maintains a constant inter-vehicle distance from a vehicle traveling ahead using a radar mounted on the vehicle. The PSS is a system that warns a driver or automatically applies a brake when the distance between the vehicle traveling in front of the vehicle and an obstacle ahead of the vehicle becomes small.

  Radar is used for ACC and PSS. When this radar is mounted on a vehicle, it is necessary to adjust the alignment of the radar mounting position so that radio waves are emitted from the radar in an appropriate direction. There is. Of the mounting postures of the radar, the shift of the posture in which the radar is inclined with respect to the horizontal plane can be adjusted by using, for example, a level. On the other hand, it is difficult to adjust the attitude deviation that causes the radar to rotate horizontally.

  In this regard, in the prior art, a beam is emitted forward from a radar mounted on a vehicle, a reflected wave of the emitted beam is received, and the horizontal direction of the radar is determined based on the distribution of the received electric field strength of the received beam. It is known to adjust the rotational attitude.

JP 2005-172824 A

  However, the prior art does not consider adjusting the horizontal rotation posture of the object by a simpler method.

  In other words, in the prior art, it is necessary to install a reference object for reflecting the beam in a place away from the vehicle in front of the vehicle, and an apparatus for analyzing the distribution of the received electric field strength of the received beam is necessary. Therefore, the configuration for adjusting the rotation posture may be complicated.

  In addition, the object that needs to adjust the horizontal rotation posture is not limited to the radar, but there are various objects such as an in-vehicle camera. However, it is difficult to adjust the rotation posture of the target object other than the radar. .

  Then, this invention makes it a subject to adjust the horizontal rotation attitude | position of a target object with a simple method.

  One form of the adjustment method of the horizontal rotation attitude | position of the target object mounted in the vehicle of this invention was made in view of the said subject, The state made to contact the 1st plane formed in the said target object In an attitude adjustment jig including an attachment having a second plane parallel to the first plane and an attitude adjustment member having a parallel line parallel to a projection line obtained by projecting the second plane onto the ground, The parallel line is set parallel to a wheel axis connecting between front wheels or rear wheels of the vehicle in a state where the attachment is in contact with the first plane and the attachment is in contact with the first plane. The rotation posture of the object in the horizontal direction is adjusted so as to be parallel to the reference line.

  When the attachment includes a member having the second plane and three protrusions formed on the second plane, the three protrusions have the tops of the three protrusions as the first protrusion. The second plane can be formed so that the first plane and the second plane are in parallel with each other in contact with the plane.

  Further, the step of adjusting the horizontal rotation posture of the object includes the horizontal direction of the object so that the parallel line overlaps the reference line in a state where the attachment is in contact with the first plane. Can be adjusted.

  In addition, the reference line has a first bar-like member installed in parallel with the wheel axis, and one end of each of two reference objects having the same length is placed at a different place of the first bar-like member. Based on the second rod-shaped member installed on the ground, the second rod-shaped member is connected to the other end of each of the two reference objects, and the second rod-shaped member is installed on the ground. It may be set by setting the reference line on the ground.

  Further, the reference line is marked on the ground by hanging a weight from the reference position of each of the four wheels of the vehicle, and a first straight line connecting two points of marking on one front and rear wheel of the vehicle; A second straight line connecting two markings for the other front and rear wheels, and the two front-point markings or the rear-wheel side along each of the first straight line and the second straight line May be set by setting two reference points that are the same length away from the two markings, and connecting the two reference points to set the reference line on the ground.

  Moreover, one form of the attitude | position alignment jig | tool of this invention is an attitude | position alignment jig | tool for adjusting the horizontal rotation attitude | position of the target object mounted in the vehicle, Comprising: 1st formed in the said target object An attachment having a second plane parallel to the first plane in contact with the plane; and an alignment member having a parallel line parallel to a projection line obtained by projecting the second plane onto the ground. The parallel line is parallel to a reference line set in parallel with a wheel axis connecting between front wheels or rear wheels of the vehicle in a state where the attachment is in contact with the first plane. It is an attitude | position alignment jig | tool for adjusting the horizontal rotation attitude | position of a target object.

  According to this invention of this application, the horizontal rotation attitude | position of a target object can be adjusted with a simple method.

FIG. 1 is a diagram for explaining a horizontal rotation posture of a radar. FIG. 2 is a flowchart of a method for adjusting the horizontal rotation attitude of the radar according to the present embodiment. FIG. 3 is a diagram for explaining an example of setting a reference line. FIG. 4 is a diagram for explaining another example of setting a reference line. FIG. 5 is a view for explaining the posture adjusting jig of the present embodiment. FIG. 6 is a perspective view illustrating a state in which the horizontal rotation posture of the radar is adjusted using the posture adjusting jig. FIG. 7 is a perspective view showing a state in which the horizontal rotation posture of the radar is adjusted using the posture adjusting jig. FIG. 8 is a top view showing a state in which the horizontal rotation posture of the radar is adjusted using the posture adjusting jig.

  Hereinafter, with reference to the drawings, an embodiment of a method for adjusting a rotation posture of an object of the present invention in the horizontal direction and a posture alignment jig will be described. In the following, a radar will be described as an example of an object whose rotational attitude is adjusted. However, the present invention is not limited to this. For example, an object mounted on a vehicle, such as an in-vehicle camera, and the horizontal rotational attitude is adjusted. Anything to do.

  First, the horizontal rotation posture of the radar will be described. FIG. 1 is a diagram for explaining a horizontal rotation posture of a radar. As shown in FIG. 1, the radar 400 has a first plane 420 facing in the direction of radiating radio waves, and a radiating section 410 for radiating radio waves is first on the first plane 420. It protrudes from the flat surface 420. Note that the shape of the radar 400 shown in FIG. 1 is merely an example, and the present embodiment can be applied to any radar 400 that has at least the first plane 420.

  When the radar 400 is mounted on a vehicle, it is necessary to appropriately adjust the rotation posture with respect to each of the three orthogonal axes (X axis, Y axis, Z axis, where the virtual vertical axis of the radar is the Z axis). There is. Of the three orthogonal axes, the rotation posture in which the radar rotates about the X axis and the Y axis can be adjusted by installing a level or the like on the upper surface of the radar 400, for example. On the other hand, it is difficult to adjust the rotation posture (rotation posture in the horizontal direction) in which the radar rotates about the Z axis even if a level device is used. The present embodiment relates to the adjustment of the horizontal rotation posture of the radar 400.

  Hereinafter, a method of adjusting the horizontal rotation posture of the radar 400 according to the present embodiment will be described. FIG. 2 is a flowchart of a method for adjusting the horizontal rotation attitude of the radar according to the present embodiment.

  In the method of adjusting the horizontal rotation posture of the radar 400, first, a reference line is set in parallel with the wheel axis connecting the front wheels or the rear wheels of the vehicle (step S101). This reference line is used for adjusting the horizontal rotation posture of the radar 400. In the present embodiment, the method of adjusting the horizontal rotation posture of the radar 400 will be described together with the step of setting the reference line, but the present invention is not limited to this. For example, when the reference line is set in advance, the method for adjusting the horizontal rotation posture of the radar 400 can be started from step S102.

  Various methods for setting the reference line can be considered, and an example will be described. FIG. 3 is a diagram for explaining an example of setting a reference line. FIG. 3 is a schematic view of the vehicle as viewed from above.

  In the setting process of the reference line 200, first, the first rod-like member 210 is installed in parallel with the wheel shafts 150, 160 connecting the front wheels 110, 120 or the rear wheels 130, 140 of the vehicle 100. In the example of FIG. 3, an example is shown in which the first rod-shaped member 210 is installed in parallel to the wheel shafts 150 and 160 by placing the first rod-shaped member 210 in contact with the rear wheels 130 and 140. This is not a limitation.

  The setting process of the reference line 200 is followed by connecting one end 230-1 and 240-1 of each of the two reference objects 230 and 240 having the same length to different locations of the first rod-shaped member 210. To do.

  In the setting process of the reference line 200, the second rod-shaped member 220 is subsequently connected to the other ends 230-2 and 240-2 of the two reference objects 230 and 240, respectively.

  In the setting process of the reference line 200, the second bar-shaped member 220 is installed on the ground, and the reference line 200 is set on the ground based on the second bar-shaped member 220 installed on the ground. For example, the reference line 200 can be drawn on the ground along the second rod-shaped member 220. According to this method, the reference line 200 parallel to the wheel shafts 150 and 160 can be set, for example, at a distance away from the front of the vehicle 100 by the principle of a parallelogram. In addition, the order of each process in the setting process of said reference line 200 is an example, The order of these each process is arbitrary.

  On the other hand, FIG. 4 is a diagram for explaining another example of setting a reference line. The upper view of FIG. 4 is a schematic view of the vehicle viewed from the side, and the lower view of FIG. 4 is a schematic view of the vehicle viewed from the top.

  First, as shown in the upper diagram of FIG. 4, the reference line 200 is set in the reference positions 252 of the four wheels of the vehicle 100 (the front wheel 120 and the rear wheel 140 shown in the upper diagram of FIG. 4). , 256, the weight 258 is hung and marking 260 is made on the ground. In the example of the upper diagram of FIG. 4, an example in which the weight 258 is hung from the reference positions 252 and 256 located on the upper portions of the front wheels 110 and 120 and the rear wheels 130 and 140 of the body of the vehicle 100 is shown. The weight 258 may be hung from a reference position (for example, the center of the wheel) corresponding to the front wheels 110 and 120 and the rear wheels 130 and 140.

  The setting process of the reference line 200 is followed by two points for the first straight line 270 connecting the two markings 260 for one of the front and rear wheels 110 and 130 of the vehicle 100 and for the other front and rear wheels 120 and 140 of the vehicle 100. A second straight line 280 connecting the markings 260 is set. This can be done by drawing a straight line connecting the front and rear wheel markings 260 marked on the ground.

  Subsequently, the setting process of the reference line 200 includes two markings 260 on the front wheels 110 and 120 side or two points on the rear wheels 130 and 140 side along the first straight line 270 and the second straight line 280, respectively. Two reference points 290 that are the same length away from the marking 260 are set. In the lower diagram of FIG. 4, an example in which two reference points 290 are set along the first straight line 270 and the second straight line 280, respectively, at the same length away from the two markings 260 on the front wheels 110 and 120 side. Is shown.

  In the reference line 200 setting step, the reference line 200 is set on the ground by connecting the two reference points 290. This can be done by drawing a straight line connecting two reference points 290 marked on the ground. According to this method, the reference line 200 parallel to the wheel shafts 150 and 160 can be set, for example, at a place away from the front of the vehicle 100. In addition, the order of each process in the setting process of said reference line 200 is an example, The order of these each process is arbitrary.

  Next, the attitude alignment jig 300 used in the method for adjusting the horizontal rotation attitude of the radar 400 will be described. FIG. 5 is a view for explaining the posture adjusting jig of the present embodiment.

  As shown in FIG. 5, the posture alignment jig 300 includes an attachment 310 for contacting the radar 400, a posture alignment member 340 for adjusting the horizontal rotation posture of the radar 400, and the attachment 310 and the alignment member. 340 includes a connecting member 360 that connects 340 to 340.

  The attachment 310 has a second plane 320 that is parallel to the first plane 420 while being in contact with the first plane 420 formed on the radar 400. Specifically, the attachment 310 includes a plate member 325 having a second plane 320 and three protrusions 330 formed on the second plane 320. The three protrusions 330 are arranged in such a manner that the first plane 420 and the second plane 320 are in parallel with the apexes of the three protrusions 330 in contact with the first plane 420 of the radar 400. The flat surface 320 is formed.

  The posture alignment member 340 has a parallel line 350 parallel to a projection line 370 obtained by projecting the second plane 320 onto the ground. Specifically, the posture alignment member 340 is formed as a rod-shaped member that extends along the parallel line 350.

  The connecting member 360 includes a pair of rod-like connecting members 360-1 and 360-2 that hang down from the lower surface of the plate member 325 toward the ground, and the protruding direction of the protrusion 330 from each of the connecting members 360-1 and 360-2. And a pair of rod-shaped connecting members 360-3 and 360-4 extending along the ground on the opposite side. The posture adjusting member 340 is connected to the connecting members 360-3 and 360-4.

  Next, returning to the description of FIG. 2, in the method of adjusting the horizontal rotation posture of the radar 400, the attachment 310 is brought into contact with the first plane 420 of the radar 400 (step S102). Specifically, in the method of adjusting the horizontal rotation posture of the radar 400, the apexes of the three protrusions 330 of the attachment 310 are brought into contact with the first plane 420 of the radar 400.

  FIG. 6 is a perspective view showing a state in which the horizontal rotation posture of the radar is adjusted using the posture adjustment jig in the step S102. FIG. 7 is a perspective view showing a state in which the horizontal rotation posture of the radar is adjusted using the posture adjusting jig.

  As shown in FIGS. 6 and 7, when adjusting the horizontal rotation posture of the radar 400, the posture adjustment jig 300 is carried to the place where the radar 400 is mounted, and the apexes of the three protrusions 330 of the attachment 310 are set. The first plane 420 of the radar 400 is brought into contact with the first plane 420.

  As a result, the first plane 420 of the radar 400 and the second plane 320 of the attachment 310 are in a parallel relationship. In addition, since the attitude alignment jig 300 is formed so that the second plane 320 and the parallel line 350 have a parallel relationship in advance, as a result, the first plane 420 and the parallel line of the radar 400 are parallel to each other. 350 are parallel to each other.

  The horizontal rotation attitude adjustment method of the radar 400 subsequently determines whether or not the parallel line 350 of the attitude alignment member 340 is parallel to the reference line 200 (step S103). As an example of step S <b> 103, whether or not the parallel line 350 is parallel to the reference line 200 can be determined based on whether or not the parallel line 350 of the posture alignment member 340 overlaps the reference line 200. However, the present invention is not limited to this, and it is possible to determine whether or not the parallel line 350 is parallel to the reference line 200 by another method.

  When the parallel line 350 of the attitude alignment member 340 is not parallel to the reference line 200 (No at step S103), the method for adjusting the horizontal rotation attitude of the radar 400 is determined by the three projections 330 of the attachment 310. With the apex in contact with the first plane 420 of the radar 400, the horizontal rotation posture of the radar 400 is adjusted (step S104), and the process returns to step S103. That is, in the method of adjusting the horizontal rotation posture of the radar 400, when the parallel line 350 is not parallel to the reference line 200, the apex of the three protrusions 330 of the attachment 310 is set to the first plane 420 of the radar 400. In other words, the horizontal rotation posture of the radar 400 is adjusted so that the parallel line 350 is parallel to the reference line 200 in a state where the radar 400 is in contact.

  On the other hand, in the horizontal rotation attitude adjustment method of the radar 400, when the parallel line 350 of the attitude alignment member 340 is parallel to the reference line 200 (step S103, Yes), the horizontal direction of the radar 400 is adjusted. Assuming that the rotation posture is in an appropriate state, the operation is finished.

  This point will be described with reference to FIG. FIG. 8 is a top view showing a state in which the horizontal rotation posture of the radar is adjusted using the posture adjusting jig. The upper diagram in FIG. 8 shows a state in which the horizontal rotation posture of the radar 400 is shifted, and the lower diagram in FIG. 8 shows a state in which the horizontal rotation posture of the radar 400 is appropriate.

  As shown in the upper diagram of FIG. 8, when the horizontal rotation posture of the radar 400 is deviated, the reference line 200 and the parallel line 350 are not overlapped (not parallel), and the reference line There is a shift of θ ° between 200 and the parallel line 350.

  As described above, when the reference line 200 and the parallel line 350 do not overlap, the horizontal rotation posture of the radar 400 is shifted, and the shifted direction can be recognized. In this case, the operator who adjusts the horizontal rotation posture of the radar 400 is in a state where the apexes of the three protrusions 330 of the attachment 310 are in contact with the first plane 420 of the radar 400 as shown in the lower diagram of FIG. The horizontal rotation posture of the radar 400 is adjusted so that the parallel line 350 overlaps (becomes parallel to) the reference line 200. Thereby, the horizontal rotation posture of the radar 400 can be adjusted to an appropriate state.

  As described above, according to the present embodiment, the horizontal rotation posture of the object can be adjusted by a simple method. That is, in the present embodiment, unlike the prior art, it is not necessary to install a reference object for reflecting the beam emitted from the radar 400 in a place away from the vehicle 100 in front of the vehicle 100, and the reference object is received. Since a device for analyzing the distribution of the received electric field intensity of the beam is not necessary, the horizontal rotation posture can be easily adjusted.

  In addition to this, according to the present embodiment, the horizontal rotation posture is adjusted using the posture adjustment jig 300, so that the present invention is not limited to radar that emits radio waves, but various objects such as a vehicle-mounted camera, for example. The rotation posture in the horizontal direction can be easily adjusted.

100 Vehicle 110, 120 Front wheel 130, 140 Rear wheel 150, 160 Wheel shaft 200 Reference line 210 First rod member 220 Second rod member 230, 240 Reference object 252, 256 Reference position 258 Weight 260 Marking 270 First straight line 280 Second straight line 290 Reference point 300 Attitude adjustment jig 310 Attachment 320 Second plane 325 Plate member 330 Projection 340 Attitude adjustment member 350 Parallel line 360 Connection line 370 Projection line 400 Radar 410 Radiation section 420 First plane

Claims (5)

A method for adjusting a horizontal rotation posture of an object mounted on a vehicle,
An attachment having a second plane parallel to the first plane in contact with the first plane formed on the object, and parallel to a projection line obtained by projecting the second plane onto the ground A posture adjusting jig including a posture adjusting member having parallel lines, the attachment being brought into contact with the first plane;
In a state where the attachment is in contact with the first plane, the parallel object is parallel to a reference line set in parallel with a wheel axis connecting between front wheels or rear wheels of the vehicle. Adjust the horizontal rotation position of the
A method for adjusting the rotational posture of an object. The adjustment method according to claim 1,
The attachment includes a member having the second plane, and three protrusions formed on the second plane,
The three protrusions are formed on the second plane so that the first plane and the second plane are parallel with the apexes of the three protrusions in contact with the first plane. To be
A method for adjusting the rotational posture of an object. In the adjustment method of Claim 1 or 2,
The step of adjusting the horizontal rotation posture of the object includes the horizontal rotation of the object so that the parallel lines overlap the reference line in a state where the attachment is in contact with the first plane. Adjust posture,
A method for adjusting the rotational posture of an object. In the adjustment method of any one of Claims 1-3,
The reference line is
Installing a first bar-like member in parallel with the wheel axis;
Connecting one end of each of two reference objects having the same length to different locations of the first rod-like member;
A second rod-like member is connected to the other end of each of the two reference objects;
Installing the second bar-like member on the ground;
Setting the reference line on the ground based on a second bar-like member installed on the ground;
Set by
A method for adjusting the rotational posture of an object. In the adjustment method of any one of Claims 1-3,
The reference line is
Mark the ground by hanging a weight from the reference position of each of the four wheels of the vehicle,
Setting a first straight line connecting two markings on one front and rear wheel of the vehicle and a second straight line connecting two markings on the other front and rear wheels of the vehicle;
Along each of the first straight line and the second straight line, two reference points separated by the same length from the two markings on the front wheel side or the two markings on the rear wheel side are set,
Connecting the two reference points to set the reference line on the ground;
Set by
A method for adjusting the rotational posture of an object.

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