JP7360806B2 - Positioning tool and positioning device for calibration reference tool of vehicle driving support device - Google Patents

Description

The present invention relates to a positioning tool and a positioning device for a reference tool (such as a target plate) for calibrating a vehicle driving support device such as a camera or various sensors installed in an advanced safety vehicle.

In recent years, automatic braking systems and automatic driving systems have been introduced in vehicles to improve safety, and in order to control these automatic systems, vehicles are equipped with various sensors such as cameras and distance sensors. Support equipment is provided.

In vehicle maintenance of such advanced safety vehicles, in order to check and calibrate (aiming) whether the driving support device is installed correctly, calibration reference tools such as target plates are placed at the locations specified by the vehicle manufacturer. It will be necessary to install the

The mounting positions of the driving support devices such as cameras and various sensors are calibrated according to the specifications of the automobile manufacturer. A calibration reference tool was installed, and the calibration reference tool was used to measure whether the driving support device was installed correctly.

Conventionally, the vehicle center line is determined by a worker from the center in the left and right direction of the emblems provided on the front and rear sides of the vehicle, respectively, which serve as a guide for the center of the vehicle. A plumb bob consisting of a string and an inverted cone-shaped weight is lowered, and a water string is positioned below each of the front and rear weights and stretched in the horizontal direction, so that the water string is set as the center line of the vehicle. (Patent Document 1 Specification (0020)).

Further, the distance between the vehicle and the calibration reference tool has been measured using a measuring tape or the like.

Japanese Patent Application Publication No. 11-38140

However, the installation method and location of the calibration reference tool differ depending on the car manufacturer and vehicle model, and it is necessary to prepare a special item for installation and measure the installation position each time, which is time-consuming.

An object of the present invention is to easily install a calibration reference device such as a target.

The positioning tool of the reference tool for calibration of a vehicle driving support device of the present invention includes a stand placed on the floor, a support provided on the stand extending upward, and a support provided on the support so as to be movable in the vertical direction. a screen body for fixing a reference tool for calibration of a vehicle driving support device, a vehicle distance measuring means for measuring the distance between the screen body and the vehicle to be measured, and a laser on the side of the vehicle to be measured. It consists of a linear laser pointer section on the vehicle to be measured side that irradiates light linearly in the vertical direction, and the linear irradiation direction of the laser light from the linear laser pointer section on the vehicle to be measured is directed toward the screen body. The screen body is formed to be orthogonal to the front surface and the horizontal plane, respectively, and the front surface of the screen body is provided with a grid display consisting of a plurality of straight lines extending in the horizontal direction and the vertical direction, respectively. .

Further, the positioning device for the calibration reference tool of the vehicle driving support device of the present invention includes a vehicle center line display section and a positioning section, and the vehicle center line display section includes a main body section installed on the floor; A front linear laser pointer section that is provided on the main body section and that is linearly irradiated with a laser beam in the front, and a rear linear laser pointer section that is linearly irradiated with a laser beam that is backwardly provided; the linear irradiation direction of the laser beam from the front linear laser pointer section and the linear irradiation direction of the laser beam from the rear linear laser pointer section. The direction and the reference line or reference point are provided in the same plane perpendicular to a horizontal plane, and the positioning part is provided with a table placed on the floor and a part provided on the table that extends upward. A pillar, a screen body provided on the pillar so as to be movable in the vertical direction and to which a reference tool for calibration of a vehicle driving support device is fixed, and a screen body for measuring the distance between the screen body and the vehicle to be measured. and a linear laser pointer section on the vehicle to be measured side that irradiates the vehicle to be measured with laser light in a linear manner in the vertical direction. The linear irradiation direction of the laser beam is formed to be perpendicular to the front surface and the horizontal plane of the screen body , and the front surface of the screen body is composed of a plurality of straight lines extending in the horizontal direction and the vertical direction, respectively. It is characterized by a grid display .

Further, the present invention is characterized in that a height measuring means for measuring the height of the screen body is provided.

Further, all or part of the screen body is made of a material to which a magnet can be attracted. Further, the color of the laser beam of the linear laser pointer section of the positioning section is different from the color of the laser beam of the linear laser pointer section of the vehicle center line display section.

According to the present invention, the vehicle center line can be easily displayed on the floor, and the positioning tool for the calibration reference tool can be easily installed.

FIG. 2 is an explanatory side view of a positioning device for a calibration reference tool of a vehicle driving support device according to the present invention. FIG. 2 is an explanatory front view and an explanatory rear view of a vehicle center line display section of the present invention. FIG. 2 is an explanatory perspective view of a vehicle center line display section of the present invention. FIG. 2 is an explanatory plan view of a vehicle center line display section of the present invention. FIG. 2 is an explanatory front view of the positioning tool of the present invention. FIG. 2 is an explanatory side view of the positioning tool of the present invention. FIG. 3 is an explanatory rear view of the positioning tool of the present invention. FIG. 3 is an explanatory plan view of the stand of the positioning tool of the present invention. FIG. 2 is an explanatory plan view of the positioning device of the present invention. FIG. 2 is an explanatory plan view of the positioning device of the present invention.

Embodiments of the present invention will be described below with reference to the drawings.

(1. Explanation of overall structure)

A positioning device for a calibration reference tool for a vehicle driving support device according to the present invention includes a vehicle center line indicator 1 and a positioner 2, as shown in FIGS. 1 to 10.

(1.1. Description of vehicle center line indicator 1)

As shown in FIGS. 1 to 3, the vehicle center line indicator 1 includes a rectangular box-shaped main body 3 and a reference part of a linear reference line or reference point 10 displayed on the top surface of the main body 3. 4, a front linear laser pointer part 5 provided on the front surface 3a of the main body part 3, which irradiates the front with laser light in a vertical direction; and a front linear laser pointer part 5 provided on the rear surface of the main body part 3. It consists of a linear laser pointer section 6 on the rear side, which is irradiated with a laser beam in a vertical direction.

Note that the reference point 10 is set, for example, at a desired distance a from the front surface 3a of the main body 3 (a portion irradiated with a laser of a laser distance meter 16 for vehicle distance measurement, which will be described later), and rearward (of the positioning tool 2). (in the opposite direction).

Further, the linear irradiation direction of the laser beam from the front linear laser pointer section 5, the linear irradiation direction of the laser beam from the rear linear laser pointer section 6, and the reference line or reference point. The reference portion 4 is provided in the same plane perpendicular to the horizontal plane (floor surface).

That is, as shown in FIG. 4, when the laser beams emitted from the front and rear linear laser pointer parts 5 and 6 are respectively irradiated onto an object to be irradiated, such as the floor 7, a line displayed on the floor 7 The front and rear linear laser pointer sections 5, 6 and the reference section 4 are provided so that the reference section 4 and the front and rear linear laser pointer sections 5a, 6a and the reference section 4 are displayed linearly in plan view.

Note that 8 indicates a vehicle (vehicle to be measured) in which driving support devices such as various sensors are adjusted, and 8a indicates a vehicle in the left and right direction of the front of the vehicle 8, as shown in FIG. 2(a). 8b indicates an emblem provided at the center of the rear surface of the vehicle 8 in the left-right direction, as shown in FIG. 2(b).

Further, 9 indicates a straight line displayed on the upper surface of the main body 3 that is perpendicular to the reference line and passes through the reference point 10 on the upper surface of the main body 3.

Further, 11 indicates a plumb bob composed of a thread 11a and an inverted cone-shaped weight 11b.

(1.2. Description of positioning tool 2)

Further, as shown in FIGS. 5 to 8, the positioning tool 2 includes, for example, a stand 12 installed on the floor 7 and two support columns provided on the upper surface of the stand 12 and extending upward. 13, a screen body 14 in the form of a rectangular plate, for example, whose front surface is a perpendicular surface, which is provided on the pillar 13 so as to be able to rise and fall (move vertically); For example, a lifting means 15 comprising a rack (not shown), a gear (not shown) meshed with the rack, and a rotating handle 15a for rotating the gear; A vehicle distance measuring laser distance meter (vehicle distance measuring means) 16 for measuring the distance from the vehicle 8; It consists of a linear laser pointer section 17 of a screen body that irradiates light in a vertical line.

Note that the linear irradiation direction of the laser beam of the linear laser pointer section 17 (the surface composed of the linearly irradiated laser beam) is relative to the front surface of the screen body 14 and the horizontal plane (floor surface). , are formed to be orthogonal to each other.

Further, the vehicle distance measuring laser distance meter 16 is provided, for example, at a position spaced apart from the front surface of the screen body 14 by a desired distance a toward the rear (in the opposite direction of the vehicle).

For example, as shown in FIG. 8, the platform 12 is made of a T-shaped plate in plan view, and has a moving means 18 such as a caster cart on the lower surface of the plate. enabling the positioning tool 2 to be moved to any position;

Further, the table 12 has a table fixing means 19 such as a plurality of fixing legs for placing and fixing the table 12 on the floor.

The table fixing means 19 includes, for example, a through screw hole provided in the table 12 and extending in the vertical direction, a bolt penetrating and screwed into the hole, and a head provided at the upper end of the bolt. , and a floor support provided at the lower end of the bolt, and by rotating the bolt of the fixed leg portion, the floor support is projected downward, and the caster truck is fixed to the floor by the platform fixing means 19. The table 12 is placed and fixed on the floor 7 by supporting the table 12 so as not to touch the surface.

The table 12 also has a level detector 20 such as a level, and uses the horizontal detector 20 to move each of the fixed legs downwards on the table 12 so that the table 12 is horizontal. Adjust the protrusion length so that it can be placed and fixed on the floor.

Note that the moving means 18, the table fixing means 19, and the horizontal detection device 20 may be omitted so that the table 12 can be placed directly on the floor 7.

Note that a scale may be provided on the pillar 13 in the vertical direction so that the height of the screen body 14 can be easily checked.

Further, on the front surface of the screen body 14, for example, a grid consisting of a plurality of straight lines extending in the left-right direction (horizontal direction) and the up-down direction (vertical direction) is displayed, and it is possible to easily mark a target or the like at a designated position. To be able to fix a calibration standard.

Further, on the front surface of the screen body 14, a vertical line portion 21a such as a mark or line indicating a vertical line that is the center of the front surface in the left-right direction (horizontal direction) or a reference vertical line is provided as a guide. Further, for example, a horizontal line portion 21b such as a mark or line indicating a horizontal line that is the center of the front surface in the vertical direction (vertical direction) or a horizontal line that is a reference is provided. Note that the vertical line portion 21a and the horizontal line portion 21b may be omitted.

In addition, it is desirable that all or a part of the screen body 14, such as the front surface, be made of a material such as iron (ferromagnetic material) that attracts a magnet. The reference tool can be easily fixed.

Note that the screen body 14 may be provided with a height measuring laser distance meter (height measuring means) 22 so that the height of the screen body 14 can be measured by the laser distance meter 22.

At this time, the laser distance meter 22 is made detachable from the screen body 14 and has a magnet, and the laser distance meter 22 is aligned with a desired horizontal line of the grid of the screen body 14, for example. The height of the screen body 14 may be measured by magnetically attracting and fixing the screen body 14 to the screen body 14 and measuring the distance to the floor 7 using the laser distance meter 22. .

Further, for example, a fixture 24 to which a reflector 23 for millimeter-wave radar calibration can be attached is provided at the center of the lower end of the screen body 14 in the left-right direction, and the fixture 24 is provided with a fixture 24 to which a reflector 23 or the like for millimeter-wave radar calibration can be attached. By installing this, it may be possible to calibrate the vehicle's millimeter wave radar, etc.

In addition, in FIG. 5, the reflector 23 is shown in a transparent state so that the rear side of the reflector 23 can be seen.

Further, for example, a screen body rotating means for rotating the screen body 14 in the left-right direction around the axis of the column 13 may be provided with respect to the column 13.

Further, it is preferable that the color of the laser light (for example, green) of the linear laser pointer portion 17 of the screen body is set to be different from the laser light (for example, red) of the vehicle center line indicator 1.

(2. Explanation of how to install the positioning device for the calibration reference tool of the vehicle driving support device)

Next, the installation method and effects of the positioning device for the calibration reference tool of the vehicle driving support device of the present invention will be explained.

A vehicle (vehicle to be measured) whose driving support devices such as cameras and various sensors are to be calibrated is stored at a predetermined location in the maintenance stall.

(2.1. Explanation of how to display the vehicle center line)

In order to display the vehicle center line of the vehicle on the floor, the worker installs a vehicle center line provided on the front and rear of the vehicle 8, for example, on the front and rear surfaces of the vehicle, as shown in FIGS. 1 and 2. Lower the plumb bob 11 to the center in the left-right direction of the emblems 8a and 8b, which serve as a guide.

Note that the plumb bob 11 may be provided at a desired reference point of the vehicle other than the emblem, as long as the center point (or reference point) in the left-right direction is known on the front and rear surfaces of the vehicle.

Next, linear laser beams are irradiated from the linear laser pointer sections 5 and 6 at the front and rear of the vehicle center line indicator 1, respectively.

Then, the vehicle center line indicator 1 is placed on the floor so that the lower end of the weight 11b of the front plumb bob 11 is located above the reference portion 4 (or above the reference point 10) of the vehicle center line indicator 1. 7, the laser beam line 6a from the rear linear laser pointer section 6 irradiated onto the floor 7 is directed to the lower end of the weight 11b of the rear plumb bob 11 (or the floor surface). The vehicle center line indicator 1 is rotated (tilted) with respect to a horizontal plane so as to match the position below the lower end of the upper weight 11b.

As will be described later, the vehicle center line indicator 1 is placed on the floor 7 so that the lower end of the weight 11b of the front plumb bob 11 is located on the reference point 10 of the vehicle center line indicator 1. By placing the vehicle center line indicator 1 on the vehicle 8, the position of the vehicle center line indicator 1 in the longitudinal direction is determined. By irradiating the laser, the distance between the positioning tool 2 and the vehicle 8 can be measured.

As shown in FIG. 4, a straight line made up of laser beam lines 5a and 6a from the front and rear linear laser pointer sections 5 and 6 irradiated onto the floor 7 can be displayed as the vehicle center line 25. become able to.

Note that the above is a case where the vehicle center line indicator 1 is installed on the front side of the vehicle, but when the vehicle center line indicator 1 is installed on the rear side of the vehicle, the plumb bob 11 on the rear side is also The vehicle center line indicator 1 is placed on the floor 7 so that the lower end of the weight 11b is located on the reference portion 4 (or on the reference point 10) of the vehicle center line indicator 1, and the vehicle center line indicator 1 is placed on the floor 7. The laser beam 5a from the front linear laser pointer section 5 irradiated to ) The vehicle center line indicator 1 is rotated (tilted) with respect to a horizontal plane so as to coincide with the above.

(2.2. Explanation of installation of positioning tool)

Next, based on the maintenance manual of the automobile manufacturer, etc., the front surface of the screen body 14 is directed toward the vehicle at a position at a desired distance in front of the vehicle with respect to the displayed vehicle center line 25 as a reference. The positioning tool 2 is installed.

Note that, for example, the table fixing means 19 is released so that the table 12 can be easily moved by the moving means 18 such as the caster cart.

That is, the operator moves the positioning tool 2 so that the laser beam line 5a coincides with the vertical line of the center of the grid of the screen body 14 of the positioning tool 2, and also measures the vehicle distance. A laser is irradiated from the laser distance meter 16 toward the front surface 3a of the vehicle center line indicator 1 provided at a desired position with respect to the vehicle 8, and the positioning tool 2 and the vehicle center line indicator are irradiated with a laser. The distance to the tool 1 (that is, the vehicle 8) is measured, and the device is moved so that the distance is the desired position.

Note that, for example, the laser range finder 16 for measuring vehicle distance is provided at a position spaced apart from the front surface of the screen body 14 by a desired distance a toward the rear (in the opposite direction of the vehicle), and the vehicle center line The reference point 10 of the main body part 3 of the display device 1 is set at a desired distance a from the front surface 3a of the main body part 3 (the part irradiated with the laser of the laser distance meter 16) and backward (in the opposite direction of the positioning tool 2). By setting the vehicle distance measuring laser distance meter 16 at a position separated from the screen body 14, the distance between the front surface of the screen body 14 and the emblem on the front side of the vehicle (or a desired reference point of the vehicle) can be measured by the vehicle distance measuring laser range finder 16. It becomes like this.

Further, emitting, for example, green laser light from the linear laser pointer portion 17 of the positioning tool 2 so as to match the red laser light of the vehicle center line indicator 1, or, For example, the front side of the vehicle and the front side of the screen body 14 are aligned with the plumb bob 11 on the front side of the vehicle, the reference portion of the vehicle center line indicator 1, etc., so that the front side of the vehicle and the front side of the screen body 14 face each other in front and parallel to each other. .

Note that FIG. 9 shows a view before the vehicle and the screen body 14 face each other, and the laser beam from the linear laser pointer section 17 of the positioning tool 2 and the linear laser pointer of the vehicle center line indicator 1 are shown. The laser light from part 5 does not match.

Then, by rotating the positioning tool 2 in the left-right direction from the above state, as shown in FIG. Adjust so that the laser beam from the linear laser pointer part 5 of the line indicator 1 matches the plumb line 11 on the front side of the vehicle, the reference part of the vehicle center line indicator 1, etc. Adjust so that they are facing directly.

Then, while checking the levelness with the horizontal detector 20 of the table 12, the table 12 is placed and fixed horizontally on the floor 7 by the table fixing means 19.

Then, the screen body 14 is raised and lowered relative to the pillars 13 to a desired height position for attaching a reference tool such as a target to the screen body 14.

Note that the height of the screen body 14 is adjusted by the scale of the support column 13, or the height of the screen body 14 is adjusted to a desired position on the front surface of the screen body 14, for example, to a horizontal line serving as a reference of a grid or to an arbitrary horizontal line. Alternatively, the height measuring laser distance meter 22 may be fixed, and the height of the screen body 14 may be measured and adjusted using the height measuring laser distance meter 22.

A reference tool for vehicle calibration such as a target plate is positioned on the front surface of the screen body 14 using the vertical lines and horizontal lines of the grid as a guide, and is fixed by, for example, a magnet.

Note that the screen body 14 may be raised and lowered after a reference tool such as a target is fixed at a desired position on the screen body 14.

Further, the reference device such as the target may be fixed at a desired position without raising and lowering the screen body 14.

Note that, if the vehicle and the screen body are not directly facing each other later on, the adjustment may be made using the screen body rotating means or the like.

According to the present invention, the vehicle center line can be easily displayed on the floor, and the positioning tool for the calibration reference tool can be easily installed.

The positioning tool and positioning device for the calibration reference tool of the vehicle driving support device of the present invention can be used in all kinds of factories such as vehicle inspection and maintenance shops and vehicle maintenance shops.

1 Vehicle center line indicator 2 Positioning tool 3 Main body portion 3a Front side 4 Reference portion 5 Linear laser pointer portion 5a Line 6 Linear laser pointer portion 6a Line 7 Floor 8 Vehicle 8a Emblem 8b Emblem 9 Straight line 10 Reference point 11 Plumb bob 11a Thread 11b Weight 12 Base 13 Support 14 Screen body 15 Lifting means 15a Handle 16 Laser distance meter for vehicle distance measurement 17 Linear laser pointer section 18 Moving means 19 Platform fixing means 20 Horizontal detector 21a Vertical line section 21b Horizontal line section 22 Height Measuring laser distance meter 23 Reflector 24 Fixture 25 Vehicle center line

Claims (5)

A stand placed on the floor,
a support provided on the platform and extending upward;
a screen body provided on the pillar so as to be movable in the vertical direction, to which a reference tool for calibration of a vehicle driving support device is fixed;
Vehicle distance measuring means for measuring the distance between the screen body and the vehicle to be measured;
It consists of a linear laser pointer section on the vehicle to be measured side that irradiates the vehicle to be measured with laser light in a linear manner in the vertical direction.
The linear irradiation direction of the laser beam from the linear laser pointer portion on the vehicle to be measured side is formed to be perpendicular to the front surface and the horizontal plane of the screen body, respectively ,
A positioning tool for a calibration reference tool for a vehicle driving support device, characterized in that a grid display consisting of a plurality of straight lines extending in the horizontal and vertical directions is provided on the front surface of the screen body. The positioning tool for a calibration reference tool for a vehicle driving support device according to claim 1, further comprising a height measuring means for measuring the height of the screen body. 3. The positioning tool for a calibration reference tool for a vehicle driving support system according to claim 1, wherein all or a part of the screen body is made of a material to which a magnet is attracted. It consists of a vehicle center line display section and a positioning section,
The vehicle center line display section includes a main body part installed on the floor, a front linear laser pointer part provided on the main body part that irradiates a laser beam in a line in the front, and a linear laser pointer part on the front side that irradiates a laser beam in a line in the rear. A linear irradiation direction of the laser beam of the front linear laser pointer portion, which is composed of a rear linear laser pointer portion that is irradiated in a shape, and a reference line or reference point provided on the main body portion; The linear irradiation direction of the laser beam of the rear linear laser pointer portion and the reference line or reference point are provided in the same plane perpendicular to the horizontal plane,
The positioning unit includes a stand placed on the floor, a support provided on the stand extending upward, and a reference tool for calibrating a vehicle driving support device provided on the support so as to be movable in the vertical direction. a screen body to which the screen body is fixed; a vehicle distance measuring means for measuring the distance between the screen body and the vehicle to be measured; and a vehicle distance measuring device to which the vehicle to be measured is irradiated with laser light in a vertical direction. and a linear laser pointer section on the vehicle side, such that the linear irradiation direction of the laser beam from the linear laser pointer section on the vehicle side to be measured is perpendicular to the front surface and the horizontal plane of the screen body, respectively. formed ,
A positioning device for a calibration reference tool for a vehicle driving support device, characterized in that a grid display consisting of a plurality of straight lines extending in the horizontal and vertical directions is provided on the front surface of the screen body. The vehicle driving support according to claim 4 , wherein the color of the laser light of the linear laser pointer part of the positioning part is different from the color of the laser light of the linear laser pointer part of the vehicle center line display part. Positioning device for the reference tool for equipment calibration.

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