CN111504196A - Calibration tool and calibration method for vehicle-mounted forward radar - Google Patents
Calibration tool and calibration method for vehicle-mounted forward radar Download PDFInfo
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- CN111504196A CN111504196A CN202010449311.1A CN202010449311A CN111504196A CN 111504196 A CN111504196 A CN 111504196A CN 202010449311 A CN202010449311 A CN 202010449311A CN 111504196 A CN111504196 A CN 111504196A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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Abstract
The invention discloses a calibration tool and a calibration method for a vehicle-mounted forward radar, which belong to the technical field of vehicle-mounted radars, and the calibration tool for the vehicle-mounted forward radar comprises the following steps: the support comprises a cross beam and an upright post which are vertically connected, and the upright post is arranged along the vertical direction; two first laser pens are arranged on the cross beam, and the mounting positions of the first laser pens on the cross beam are adjustable; the second laser pen, install in on the support, two first laser pen can be adjusted to relative the second laser pen symmetry, the second laser pen is in mounting position on the support can be followed vertical direction and adjusted. The calibration method of the vehicle-mounted forward radar uses the calibration tool of the vehicle-mounted forward radar. The method can quickly determine the geometric center line of the vehicle body so as to solve the technical problem that the radar cannot be quickly and accurately installed at the preset position in the prior art.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted radars, in particular to a calibration tool and a calibration method of a vehicle-mounted forward radar.
Background
Vehicle-mounted radars are radars for automobiles or other ground-based motor vehicles. The vehicle-mounted radar can sense the state information of surrounding targets, help a driver to perceive possible dangers in the shortest time, draw the attention of the driver and improve the driving safety. When the vehicle-mounted radar is installed, the requirement on the arrangement angle of the whole vehicle is high.
In prior art, when the installation is preceding to the radar, generally require that preceding radar is located the axis of car, and need accurately install the radar to predetermined height and every single move angle.
However, in the prior art, when the forward radar is installed and calibrated, the geometric center line of the automobile cannot be determined quickly and accurately, and the radar cannot be installed to a preset position quickly and accurately.
Disclosure of Invention
The invention aims to provide a calibration tool for a vehicle-mounted forward radar, which can quickly determine a geometric center line of a vehicle body so as to solve the technical problem that the radar cannot be quickly and accurately installed at a preset position in the prior art.
As the conception, the technical scheme adopted by the invention is as follows:
the utility model provides a calibration frock of radar is preceding to on-vehicle, includes:
the support comprises a cross beam and an upright post which are vertically connected, and the upright post is arranged along the vertical direction;
two first laser pens are arranged on the cross beam, and the mounting positions of the first laser pens on the cross beam are adjustable;
the second laser pen, install in on the support, two first laser pen can be adjusted to relative the second laser pen symmetry, the second laser pen is in mounting position on the support can be followed vertical direction and adjusted.
Optionally, the mounting position of the cross beam on the upright post can be adjusted in the vertical direction.
Optionally, the calibration tool for the vehicle-mounted forward radar further comprises a first laser pen mounting seat, the first laser pen and the first laser pen mounting seat are arranged in a one-to-one correspondence manner and are mounted on the first laser pen mounting seat, and the first laser pen mounting seat is mounted on the cross beam and is adjustable in mounting position on the cross beam.
Optionally, be equipped with on the crossbeam along the direction of extension of crossbeam guide way, be equipped with on the first laser pen mount pad with guide way complex guide part, the guide part install in the guide way just the guide part can be followed the guide way removes in order to adjust first laser pen mount pad is in mounting position on the crossbeam.
Optionally, the crossbeam includes first crossbeam portion and second crossbeam portion, first crossbeam portion with the second crossbeam portion be located same water flat line just first crossbeam portion with the second crossbeam portion is located respectively the both sides of stand, one first laser pen is located first crossbeam portion, another first laser pen is located the second crossbeam portion.
Optionally, the first beam portion and the second beam portion are both provided with scale marks.
Optionally, the calibration tool for the vehicle-mounted forward radar further comprises a second laser pen mounting seat, the second laser pen is mounted on the second laser pen mounting seat, the second laser pen mounting seat is mounted on the support, and the mounting position of the second laser pen mounting seat on the support can be adjusted in the vertical direction.
Optionally, two opposite sides of the second laser pointer installation seat are respectively provided with an installation lug, and the two installation lugs can be installed on the cross beam or the upright post.
Optionally, the calibration tool for the vehicle-mounted forward radar further comprises a base, and the stand column is vertically arranged on the base.
The invention further aims to provide a calibration tool for a vehicle-mounted forward radar, which can quickly determine the geometric center line of a vehicle body so as to solve the technical problem that the radar cannot be quickly and accurately installed at a preset position in the prior art.
As the conception, the technical scheme adopted by the invention is as follows:
a calibration method of a vehicle-mounted forward radar uses the calibration tool of the vehicle-mounted forward radar to calibrate the mounting position of the vehicle-mounted forward radar, and comprises the following steps:
s1, selecting two reference points on the automobile, wherein the two reference points are symmetrical relative to the center line of the automobile in the front-back direction;
s2, adjusting the mounting positions of the two first laser pens on the cross beam to ensure that the two first laser pens are symmetrical relative to the second laser pen all the time, and simultaneously adjusting the positions of the supports to enable the light beams of the two first laser pens to respectively irradiate the two reference points;
s3, adjusting the height of the second laser pen to enable the second laser pen to irradiate the automobile, wherein the position of the light beam of the second laser pen on the automobile is the installation position of the vehicle-mounted forward radar.
When the calibration tool for the vehicle-mounted forward radar is used, two reference points on an automobile are selected and are symmetrical relative to a center line of the automobile in the front-back direction, namely a center line of an automobile body, the mounting positions of two first laser pens on a cross beam are adjusted, the two first laser pens are guaranteed to be symmetrical relative to a second laser pen all the time, and meanwhile, the position of a support is adjusted until light beams of the two first laser pens respectively irradiate the two reference points, and the second laser pen is located on the center line of the automobile in the front-back direction. Then the height of the second laser pen is adjusted to a proper position and the light beam is irradiated on the automobile, and then the installation position of the vehicle-mounted forward radar can be found.
This calibration frock to radar is preceding to on-vehicle can confirm the geometric centre line of automobile body fast, and then can confirm the mounted position to radar to on-vehicle fast. Meanwhile, the height of the second laser pen can be adjusted, so that the vehicle-mounted forward radar calibration tool can be suitable for different vehicle types.
According to the calibration method of the vehicle-mounted forward radar, the mounting position of the vehicle-mounted forward radar is determined by adopting the calibration tool of the vehicle-mounted forward radar, the geometric center line of the vehicle body can be rapidly determined, and further the mounting position of the vehicle-mounted forward radar can be rapidly determined.
Drawings
Fig. 1 is a front view of a calibration tool of a vehicle-mounted forward radar according to a first embodiment of the present invention;
fig. 2 is a schematic three-dimensional structure diagram of a calibration tool for a vehicle-mounted forward radar according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a forward radar reflecting plate according to a second embodiment of the present invention.
In the figure:
1. a support; 11. a cross beam; 111. a guide groove; 112. a first beam section; 113. a second beam section; 12. a column;
2. a first laser pen;
3. a second laser pen;
4. a first laser pen mounting base;
5. a second laser pen mounting seat; 51. mounting a lug;
6. a base;
7. a forward radar reflecting plate; 71. and (5) point location.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
This embodiment provides a calibration frock to radar before on-vehicle, can confirm the central line of vehicle fast, accomplish the calibration to radar before on-vehicle fast.
Referring to fig. 1 and fig. 2, in particular, in this embodiment, the calibration fixture of the vehicle-mounted forward radar includes a bracket 1, a first laser pointer 2, and a second laser pointer 3.
Specifically, the bracket 1 comprises a cross beam 11 and a vertical column 12 which are vertically connected, and the vertical column 12 is arranged along the vertical direction; two first laser pens 2 are arranged, the two first laser pens 2 are both arranged on the cross beam 11, and the installation positions of the first laser pens 2 on the cross beam 11 are adjustable; second laser pen 3 is installed on support 1, and two first laser pens 2 can adjust to 3 symmetries of relative second laser pen, and vertical direction regulation can be followed to the mounted position of second laser pen 3 on support 1.
The calibration tool for the vehicle-mounted forward radar provided by the embodiment is used for selecting two reference points on a vehicle, wherein the two reference points are symmetrical relative to the center line of the vehicle in the front-back direction, the installation positions of the two first laser pens 2 on the cross beam 11 are adjusted, the two first laser pens 2 are ensured to be symmetrical relative to the second laser pen 3 all the time, the position of the support 1 is adjusted simultaneously until the light beams of the two first laser pens 2 irradiate the two reference points respectively, and the second laser pen 3 is located on the center line of the vehicle in the front-back direction. Then the height of the second laser pen 3 is adjusted to a proper position and the light beam is irradiated on the automobile, and then the installation position of the vehicle-mounted forward radar can be found.
Preferably, in order to conveniently adjust the position of the calibration tool for the vehicle-mounted forward radar, the calibration tool for the vehicle-mounted forward radar further comprises a base 6, and the upright 12 is vertically arranged on the base 6. Preferably, be equipped with the gyro wheel on the base 6, the setting of gyro wheel is convenient for adjust this on-vehicle preceding radar's demarcation frock.
Preferably, in this embodiment, the second laser pointer 3 is a cross laser pointer, so as to be able to calibrate the pitch angle of the vehicle-mounted forward radar.
Preferably, in this embodiment, the beam 11 includes a first beam portion 112 and a second beam portion 113, the first beam portion 112 and the second beam portion 113 are located on the same horizontal line, the first beam portion 112 and the second beam portion 113 are respectively located on two sides of the upright 12, one first laser pointer 2 is located on the first beam portion 112, and the other first laser pointer 2 is located on the second beam portion 113.
Further, the first beam portion 112 and the second beam portion 113 are both provided with scale marks, so that the distance between the two first laser pens 2 can be accurately adjusted. Optionally, the minimum division of the graduation marks on the first and second beam portions 112, 113 is 1 mm.
Preferably, in the present embodiment, the installation position of the cross beam 11 on the column 12 can be adjusted in the vertical direction, so as to make the calibration tool have better versatility.
Preferably, in this embodiment, the first beam portion 112, the second beam portion 113 and the upright 12 are made of aluminum profiles, and the aluminum profiles are provided with notches in the circumferential direction. Specifically, the first and second beam portions 112, 113 are each connected to the upright 12 by a right angle connection. When the heights of the first and second beams 112 and 113 need to be adjusted, the right-angle connecting member is detached and the first and second beams 112 and 113 are adjusted to the proper heights, and the right-angle connecting member is installed again.
Specifically, in this embodiment, the upright 12 is mounted to the base 6 by a right angle connection. Of course, in other embodiments, the upright 12 may be mounted on the base 6 by welding.
Specifically, in this embodiment, on-vehicle preceding frock of maring of radar still includes first laser pen mount pad 4, and first laser pen 2 sets up and installs in first laser pen mount pad 4 with first laser pen mount pad 4 one-to-one, and first laser pen mount pad 4 installs on crossbeam 11 and the mounted position on crossbeam 11 is adjustable. Further, in order to adjust the position of the first laser pen holder 4 for guiding, in this embodiment, a guide groove 111 extending along the extending direction of the cross beam 11 is disposed on the cross beam 11, a guide portion engaged with the guide groove 111 is disposed on the first laser pen holder 4, the guide portion is mounted in the guide groove 111, and the guide portion can move along the guide groove 111 to adjust the mounting position of the first laser pen holder 4 on the cross beam 11. Specifically, a notch of an aluminum profile may be directly employed as the guide groove 111.
Specifically, a connecting hole is formed in the first laser pen mounting seat 4, and the connecting piece penetrates through the connecting hole and abuts against the bottom of the guide groove 111.
Further, on-vehicle preceding frock of maring of radar still includes second laser pen mount pad 5, and second laser pen 3 is installed in second laser pen mount pad 5, and second laser pen mount pad 5 is installed in support 1 and the mounted position of second laser pen mount pad 5 on support 1 can be followed vertical direction and adjusted.
Specifically, in the present embodiment, two opposite sides of the second laser pointer installation seat 5 are respectively provided with one installation lug 51, and the two installation lugs 51 can be installed on the cross beam 11 or the upright post 12.
Alternatively, in the present embodiment, the two mounting lugs 51 are connected to the first beam portion 112 and the second beam portion 113, respectively. The connector passes through the mounting lug 51 and abuts the groove bottoms of the notches of the first and second beam portions 112, 113. When the mounting positions of the two first laser pens 2 need to be adjusted, the mounting positions of the two first laser pens 2 only need to be adjusted by contrasting the scale marks on the first beam part 112 and the second beam part 113, and the two first laser pens 2 can be ensured to be symmetrical relative to the second laser pen 3 according to the scales.
Simultaneously with two installation lugs 51 respectively with first crossbeam portion 112 and second crossbeam portion 113 be connected, after adjusting two first laser pens 2 for second laser pen 3 symmetry back, directly adjust first crossbeam portion 112 and second crossbeam portion 113 from top to bottom, can enough realize the regulation from top to bottom of second laser pen 3, can realize the regulation from top to bottom of two first laser pens 2 again, make this on-vehicle use to the demarcation frock of radar more convenient, the commonality is also better, can be suitable for various motorcycle types.
Further, in this embodiment, the vertical column 12 is also provided with scales, so as to facilitate accurate adjustment of the height of the second laser pointer 3. Preferably, in this embodiment, the minimum division value of the scale on the column 12 is 1 mm. When adjusting the height of the second laser pen 3, the calibration personnel adjust the installation height of the first beam portion 112 and the second beam portion 113 according to the scales on the upright post 12, thereby realizing the adjustment of the height of the second laser pen 3.
Of course, in the calibration site, the calibration personnel can also use the scale to determine the height of the second laser pen 3; or a ruler is used to determine the mounting position of the first laser pen 2.
Preferably, when using the calibration frock of radar before on-vehicle that this embodiment provided, choose comparatively level and smooth ground for use, like cement ground or pitch ground, it is better to the calibration effect of radar before on-vehicle.
Specifically, in the present embodiment, the base 6 has a flat plate structure. In order to guarantee the levelness of the base 6 and further guarantee the verticality of the upright post 12 and the levelness of the cross beam 11, a horizontal ruler is placed on the base 6, and the levelness of the base 6 can be guaranteed by the horizontal ruler.
Example two
The embodiment provides a calibration method for a vehicle-mounted forward radar, which is implemented by using the calibration tool for the vehicle-mounted forward radar in the first embodiment to calibrate the mounting position of the vehicle-mounted forward radar, and comprises the following steps:
and S1, selecting two reference points on the automobile, wherein the two reference points are symmetrical relative to the center line of the automobile in the front-back direction.
In particular, when an automobile is produced, the structure of a body-in-white of the automobile is generally arranged in a left-right symmetrical mode. In step S1, two symmetrically manufactured structures on the automobile are selected as reference points.
S2, adjusting the mounting positions of the two first laser pens 2 on the cross beam 11 to ensure that the two first laser pens 2 are always symmetrical relative to the second laser pen 3, and simultaneously adjusting the position of the bracket 1 to enable the light beams of the two first laser pens 2 to respectively irradiate two reference points;
specifically, step S2 includes the steps of:
s21, preliminarily adjusting the installation positions of the two first laser pens 2 on the cross beam 11, wherein the two first laser pens 2 are symmetrical relative to the second laser pen 3, and the distance between the two first laser pens 2 is approximately equal to the distance between two reference points;
s22, placing the calibration tool of the vehicle-mounted forward radar in front of the automobile, and meanwhile enabling the second laser pen 3 to be approximately located on the central line of the automobile in the front-back direction;
s23, continuously fine-adjusting the installation positions of the two first laser pens 2 on the cross beam 11, ensuring that the two first laser pens 2 are symmetrical relative to the second laser pen 3 all the time, and simultaneously continuously fine-adjusting the positions of the support 1 until the light beams of the two first laser pens 2 irradiate two reference points respectively.
When step S23 is completed, the second laser pointer 3 is located on the center line of the automobile in the front-rear direction.
S3, adjusting the height of the second laser pen 3 to enable the light beam of the second laser pen 3 to irradiate the automobile, wherein the position of the light beam of the second laser pen 3 on the automobile is the installation position of the vehicle-mounted forward radar. Referring to fig. 3, preferably, in step S3, the vehicle-mounted forward radar includes a forward radar reflection plate 7, a point location 71 is disposed on the forward radar reflection plate 7, and the position of the forward radar reflection plate 7 is adjusted so that the light beam of the second laser pen 3 irradiates the point location 71, i.e., the mounting position of the vehicle-mounted forward radar can be found accurately.
Preferably, in this embodiment, the second laser pen 3 is a cross laser pen, a connecting line of five point locations 71 on the forward radar reflecting plate 7 is in a cross shape, and the pitch angle and the azimuth angle of the vehicle-mounted forward radar can be adjusted by setting the five point locations 71.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a calibration frock of radar is preceding to on-vehicle which characterized in that includes:
the support (1) comprises a cross beam (11) and a vertical column (12) which are vertically connected, and the vertical column (12) is arranged along the vertical direction;
two first laser pens (2) are arranged, the two first laser pens (2) are arranged on the cross beam (11), and the mounting positions of the first laser pens (2) on the cross beam (11) are adjustable;
second laser pen (3), install in on support (1), two first laser pen (2) can be adjusted to relative second laser pen (3) symmetry, second laser pen (3) are in mounting position on support (1) can be followed vertical direction and adjusted.
2. Calibration tooling for a vehicle-mounted forward radar according to claim 1, characterized in that the mounting position of the cross beam (11) on the upright (12) is adjustable in the vertical direction.
3. The calibration tool of the vehicle-mounted forward radar according to claim 1, further comprising a first laser pen mounting seat (4), wherein the first laser pens (2) and the first laser pen mounting seats (4) are arranged in a one-to-one correspondence manner and mounted on the first laser pen mounting seats (4), and the first laser pen mounting seats (4) are mounted on the cross beam (11) and are adjustable in mounting position on the cross beam (11).
4. The calibration tool of the vehicle-mounted forward radar according to claim 3, wherein a guide groove (111) extending along the extending direction of the cross beam (11) is formed in the cross beam (11), a guide portion matched with the guide groove (111) is formed in the first laser pointer mounting seat (4), the guide portion is mounted in the guide groove (111), and the guide portion can move along the guide groove (111) to adjust the mounting position of the first laser pointer mounting seat (4) on the cross beam (11).
5. The calibration tool of the vehicle-mounted forward radar as recited in any one of claims 1 to 4, wherein the cross beam (11) comprises a first cross beam portion (112) and a second cross beam portion (113), the first cross beam portion (112) and the second cross beam portion (113) are located on the same horizontal line, the first cross beam portion (112) and the second cross beam portion (113) are located on two sides of the upright post (12) respectively, one first laser pen (2) is located on the first cross beam portion (112), and the other first laser pen (2) is located on the second cross beam portion (113).
6. The calibration tooling for the vehicle-mounted forward radar as recited in claim 5, wherein the first beam portion (112) and the second beam portion (113) are provided with scale marks.
7. The calibration tool of the vehicle-mounted forward radar according to claim 1, further comprising a second laser pen mounting seat (5), wherein the second laser pen (3) is mounted on the second laser pen mounting seat (5), the second laser pen mounting seat (5) is mounted on the support (1), and the mounting position of the second laser pen mounting seat (5) on the support (1) can be adjusted in the vertical direction.
8. The calibration tool for the vehicle-mounted forward radar as recited in claim 7, wherein two opposite sides of the second laser pointer installation seat (5) are respectively provided with an installation lug (51), and the two installation lugs (51) can be installed on the cross beam (11) or the upright post (12).
9. The calibration fixture for the vehicle-mounted forward radar according to claim 1, further comprising a base (6), wherein the upright (12) is vertically arranged on the base (6).
10. A calibration method for a vehicle-mounted forward radar, characterized in that the mounting position of the vehicle-mounted forward radar is calibrated by using the calibration tool for the vehicle-mounted forward radar according to any one of claims 1 to 9, and the calibration method comprises the following steps:
s1, selecting two reference points on the automobile, wherein the two reference points are symmetrical relative to the center line of the automobile in the front-back direction;
s2, adjusting the mounting positions of the two first laser pens (2) on the cross beam (11), ensuring that the two first laser pens (2) are always symmetrical relative to the second laser pen (3), and simultaneously adjusting the position of the bracket (1) and enabling the light beams of the two first laser pens (2) to respectively irradiate the two reference points;
s3, adjusting the height of the second laser pen (3) to enable the second laser pen (3) to irradiate the automobile, wherein the position of the light beam of the second laser pen (3) on the automobile is the installation position of the vehicle-mounted forward radar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010449311.1A CN111504196A (en) | 2020-05-25 | 2020-05-25 | Calibration tool and calibration method for vehicle-mounted forward radar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010449311.1A CN111504196A (en) | 2020-05-25 | 2020-05-25 | Calibration tool and calibration method for vehicle-mounted forward radar |
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| CN111504196A true CN111504196A (en) | 2020-08-07 |
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| CN202010449311.1A Pending CN111504196A (en) | 2020-05-25 | 2020-05-25 | Calibration tool and calibration method for vehicle-mounted forward radar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407106A (en) * | 2020-11-20 | 2021-02-26 | 苏州智加科技有限公司 | Installation method and device of split type binocular camera |
| CN113091613A (en) * | 2021-04-30 | 2021-07-09 | 合肥博仕达汽车技术服务有限公司 | Gantry type calibration frame applied to intelligent network vehicle-connected sensor and calibration method |
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2020
- 2020-05-25 CN CN202010449311.1A patent/CN111504196A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407106A (en) * | 2020-11-20 | 2021-02-26 | 苏州智加科技有限公司 | Installation method and device of split type binocular camera |
| CN112407106B (en) * | 2020-11-20 | 2022-05-17 | 苏州智加科技有限公司 | Installation method and device of split type binocular camera |
| CN113091613A (en) * | 2021-04-30 | 2021-07-09 | 合肥博仕达汽车技术服务有限公司 | Gantry type calibration frame applied to intelligent network vehicle-connected sensor and calibration method |
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