CN215005851U - Calibration equipment for radar calibration reflecting plate - Google Patents
Calibration equipment for radar calibration reflecting plate Download PDFInfo
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- CN215005851U CN215005851U CN202121003327.6U CN202121003327U CN215005851U CN 215005851 U CN215005851 U CN 215005851U CN 202121003327 U CN202121003327 U CN 202121003327U CN 215005851 U CN215005851 U CN 215005851U
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Abstract
The utility model discloses a calibration equipment of radar calibration reflecting plate, include: a laser emitter, a first light-transmitting panel, and a second light-transmitting panel; the laser emitter emits a laser beam which is coincident with the center line of the travelling crane; the laser beam sequentially passes through the centers of the first light-transmitting plate and the second light-transmitting plate to reach the radar calibration reflecting plate, or the laser beam sequentially passes through the centers of the first light-transmitting plate and the second light-transmitting plate to reach the radar calibration reflecting plate and then is reflected to the second light-transmitting plate by the radar calibration reflecting plate; the scheme utilizes the three-coordinate detection calibration of a third party (a second light-transmitting plate) to provide a high-precision detection result; the position and the mechanical turnover angle of the radar calibration reflecting plate are judged by utilizing the optical reflection principle, so that the radar calibration reflecting plate is more attached to the actual situation, and the calibration precision is higher.
Description
Technical Field
The utility model relates to a calibration tool, concretely relates to calibration equipment of radar calibration reflecting plate.
Background
With the rapid development of modern science and technology and the remarkable improvement of the living standard of people, the automobile holding amount is rapidly increased, and the safety problem of automobiles is generally concerned. People increasingly desire safety and convenience brought by high technology, and various systems such as automobile autonomous intelligent cruise and automobile anti-collision radar are realized by combining a radar signal processing technology;
the existing automobile host factory usually uses radar calibration equipment to carry out MRR calibration on a vehicle, measures the horizontal and vertical deviations of the radar axis and the vehicle running axis by enabling a calibration reflecting plate to be at different positions, and then realizes calibration and compensation of the installation deviation of the reflecting plate by adjusting parameters, so that the two are superposed to achieve the calibration effect; the radar calibration equipment needs to be calibrated at regular time after being used for a long time, particularly a reflecting plate of the radar calibration equipment needs to be calibrated at regular time, the center line of the reflecting plate needs to be ensured to be coincident with the center line of a driving vehicle in the calibration process of the radar calibration equipment to the MRR of the vehicle, and the actual mechanical turnover angle of the reflecting plate needs to be consistent with the set angle of the radar calibration equipment, so that the accuracy of the position and the turnover angle of the reflecting plate directly influences the calibration precision of the MRR of the vehicle, and the position and the mechanical turnover angle of the reflecting plate need to be calibrated regularly.
SUMMERY OF THE UTILITY MODEL
For solving prior art, after using radar calibration equipment for a long time, the position and the mechanical flip angle of the reflecting plate of radar calibration equipment all have certain deviation, the utility model provides a calibration equipment of radar calibration reflecting plate to the position of the reflecting plate of solving radar calibration equipment and the deviation problem after the angle of deflection used for a long time.
The utility model discloses a following technical scheme realizes:
the utility model provides a calibration equipment of radar calibration reflecting plate, include: a laser emitter, a first light-transmitting panel, and a second light-transmitting panel;
the laser emitter emits a laser beam which is coincident with the center line of the travelling crane;
the laser beam sequentially passes through the centers of the first light-transmitting plate and the second light-transmitting plate to reach the radar calibration reflecting plate, or the laser beam sequentially passes through the centers of the first light-transmitting plate and the second light-transmitting plate to reach the radar calibration reflecting plate and then is reflected to the second light-transmitting plate by the radar calibration reflecting plate.
The working principle of the scheme is as follows:
the utility model provides a calibration equipment of radar calibration reflecting plate, make the laser beam of laser emitter transmission shoot the radar calibration reflecting plate behind two light-passing boards on, reflect the laser beam to the second light-passing board by the radar calibration reflecting plate, judge the position and the turnover angle of radar calibration reflecting plate whether standard through observing the condition of shining of reflection laser beam on the second light-passing board, utilize the reflection principle of optics to mark the position and the turnover angle of radar calibration reflecting plate, more laminate with actual conditions, calibration accuracy is higher.
The center mark of a reflecting plate of the radar calibration equipment is required to be superposed with the center line of a traveling vehicle, and the mechanical turnover angle of the reflecting plate needs to be consistent with a set value; the scheme belongs to active calibration equipment and aims to determine the deviation of a radar axis and a vehicle running axis in the horizontal and vertical directions and then enable the radar axis and the vehicle running axis to be coincident or within an allowable range through adjustment.
When the position of the radar calibration reflecting plate is calibrated: when the laser beam is just shot on the central mark point of the radar calibration reflecting plate, the position of the radar calibration reflecting plate does not need to be adjusted; if the laser beam does not irradiate the central mark point of the radar calibration reflecting plate, the position of the radar calibration reflecting plate needs to be adjusted.
When the radar calibration reflecting plate overturns at a corresponding angle according to an instruction of radar calibration equipment, if an error exists between an actual overturning angle and a required overturning angle, the accuracy of the radar calibration equipment is influenced;
when the turnover angle of the radar calibration reflecting plate is calibrated:
when the radar calibration reflecting plate is turned over by a certain angle, the laser beam should pass through the radar calibration reflecting plate and then be reflected to the corresponding position on the second light-transmitting plate, and if the laser beam is not reflected to the corresponding position, the turning angle of the radar calibration reflecting plate 6 needs to be adjusted.
The second light-transmitting plate comprises a light-transmitting hole B, a light-transmitting hole C and a light-transmitting hole D which are arranged on a straight line;
the light hole B is located at the center of the second light-passing plate, the light hole C and the light hole D are respectively located on the upper side and the lower side of the light hole B, and the distance from the light hole C to the light hole B is equal to the distance from the light hole D to the light hole B.
The further optimization scheme is that the first light-transmitting plate is a rectangular plate, and a light-transmitting hole A is formed in the center of the first light-transmitting plate.
The concentricity error of the light holes on the light holes A and the light holes B is less than or equal to 0.1. So as to ensure that the point-shaped laser transmitter can be positioned on the driving central line of the automobile on the automobile centering device.
The further optimization scheme is that the device further comprises a calibration frame, wherein the calibration frame is a rectangular frame, and a transverse support frame and at least two longitudinal support frames are arranged in the middle of the rectangular frame, the transverse support frame is as long as the rectangular frame, and the longitudinal support frames are as wide as the rectangular frame;
the laser transmitter, the first light-transmitting plate and the second light-transmitting plate are all installed on the longitudinal supporting frame.
The further optimization scheme is that the calibration frame is made of aluminum alloy materials. The industrial aluminum alloy section is adopted to splice and calibrate the frame, so that the machining error and the assembly error are reduced.
The further optimization scheme is that a group of supports are arranged at four top corners of the bottom of the calibration frame respectively and used for supporting the calibration frame; and each bracket is provided with a positioning device, and the calibration frame is also provided with a horizontal bubble. And (5) performing finish machining on a positioning device on the calibration frame to ensure that the positioning size is correct.
The further optimization scheme is that the device further comprises a lifting mechanism, wherein the lifting mechanism comprises a telescopic mechanism and a chain arranged on the calibration frame, and the telescopic mechanism is connected with the chain.
When the calibration equipment of radar calibration reflecting plate is not used, the calibration frame is lifted at the top through the lifting mechanism, so that vehicle calibration can be performed, the storage is convenient, and the occupied space is small.
The further optimization scheme is that the laser emitter adopts a point laser emitter.
And judging the position of the radar reflecting plate by utilizing an optical reflection principle. A point-like laser transmitter is arranged on the center line (the driving direction) of the laser calibration device. The laser calibration device is fixed by the swing rods on two sides of the automobile centering device in a swinging mode, whether a horizontal bubble on the calibration device is in the center or not is checked, and if the horizontal bubble is not in the center, the horizontal position needs to be adjusted. At the moment, the point-like laser emitter of the laser calibration device can be fixed on the driving center line of the automobile.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model relates to a calibration device for radar calibration reflecting plate, which utilizes the three-coordinate (light hole B, light hole C and light hole D) detection of a third party (a second light-passing plate) to provide a high-precision detection result;
2. the utility model relates to a calibration equipment of radar calibration reflecting plate utilizes the reflection principle of optics to judge the position and the mechanical rotation angle of radar calibration reflecting plate, and more laminating with actual conditions marks the precision higher.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Reference numbers and corresponding part names:
1-calibration frame, 2-laser emitter, 3-first transparent plate, 4-second transparent plate, 41-transparent hole B, 42-transparent hole C, 43-transparent hole D, 5-support, 51-positioning device, 6-radar calibration reflecting plate, 7-emitted laser beam, 8-reflected laser beam A, 9-reflected laser beam B, 10-chain, 11-driving center line, 12-longitudinal support frame, 13-transverse support frame and 14-horizontal bubble.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail so as not to obscure the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, it should be understood that the terms "front", "back", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the present invention.
Example 1
In order to calibrate radar detection equipment in an automobile host factory, whether a center mark of a radar reflecting plate (mirror surface) on the radar detection equipment is on a center line of a running vehicle or not and whether the mechanical turnover angle (+/-2 DEG) position of the radar reflecting plate is correct or not are calibrated.
As shown in fig. 1, the present embodiment provides a calibration apparatus for a radar calibration baffle, including: a laser emitter 2, a first light-transmitting panel 3 and a second light-transmitting panel 4;
the laser emitter 2 emits a laser beam which is coincident with the center line of the travelling crane;
the laser beam passes through the center of the first light-transmitting plate 3 and the center of the second light-transmitting plate 4 in sequence to reach the radar calibration reflecting plate 6, or the laser beam passes through the center of the first light-transmitting plate 3 and the center of the second light-transmitting plate 4 in sequence to reach the radar calibration reflecting plate, and then is reflected to the second light-transmitting plate 4 through the radar calibration reflecting plate.
As shown in fig. 7, the second light-transmitting plate 4 includes light-transmitting holes B41, C42, and D43 in a straight line;
the light hole B41 is located in the center of the second light-transmitting plate 4, the light hole C42 and the light hole D43 are respectively located on the upper side and the lower side of the light hole B, and the distance from the light hole C to the light hole B is equal to the distance from the light hole D to the light hole B.
As shown in fig. 6, the first transparent plate 3 is a rectangular plate, and a light hole a is formed in the center of the first transparent plate 3.
As shown in fig. 4 and 5, the calibration frame 1 is a rectangular frame, and a transverse support frame 13 and at least two longitudinal support frames 12 are arranged in the middle of the rectangular frame, wherein the transverse support frame 13 has the same length as the rectangular frame, and the longitudinal support frames 12 have the same width as the rectangular frame;
the laser transmitter 2, the first light-transmitting plate 3 and the second light-transmitting plate 4 are all installed on the longitudinal supporting frame.
The calibration frame 1 is made of aluminum alloy materials.
As shown in fig. 1, the laser beam emitted by the laser emitter 2 is transmitted to the mirror surface of the radar calibration reflecting plate 6 through two transparent plates (the center of the first transparent plate 3 and the second transparent plate 4) on the calibration device:
when the radar calibration reflecting plate 6 is not turned over, the laser beam passes through the light-transmitting hole B41, and the laser beam just irradiates on a central mark point of the radar calibration reflecting plate 6; if the laser beam does not impinge on the center mark point of the radar calibration reflecting plate 6, the position of the radar calibration reflecting plate 6 needs to be adjusted. After the adjustment is completed, the laser beam should be reflected back to the light-transmitting hole B of the second light-transmitting plate 4 through the center of the radar calibration reflecting plate 6, so that no laser beam should be arranged on the periphery of the light-transmitting hole B; if the light-transmitting hole B is formed around the periphery thereof, the levelness of the radar calibration reflecting plate 6 needs to be adjusted.
As shown in fig. 2, in this embodiment, the radar calibration device controls the radar calibration reflection plate 6 to perform +2 ° direction turning in the drawing, and the laser beam is reflected to the light-transmitting hole C42 on the second light-transmitting plate 4 after passing through the radar calibration reflection plate 6, and if the laser beam does not pass through the light-transmitting hole C42, the mechanical turning angle of the reflection plate of the radar calibration reflection plate 6 needs to be adjusted on the device.
As shown in fig. 3, in this embodiment, the radar calibration device controls the radar calibration reflection plate 6 to turn over-2 ° in the figure, and the laser beam passes through the radar calibration reflection plate 6 and then is reflected to the light-transmitting hole D43 of the second light-transmitting plate 4, and if the laser beam does not pass through the light-transmitting hole D43, the mechanical turning angle of the reflection plate of the radar calibration reflection plate 6 needs to be adjusted on the device.
Example 2
The difference between the present embodiment and the previous embodiment is that a group of brackets 5 is respectively arranged at four top corners of the bottom of the calibration frame 1 for supporting the calibration frame; each bracket is provided with a positioning device 51, and the calibration frame 1 is also provided with a horizontal bubble 14.
The calibration frame is characterized by further comprising a lifting mechanism, wherein the lifting mechanism comprises a telescopic mechanism and a chain 10 installed on the calibration frame 1, and the telescopic mechanism is connected with the chain 10.
The laser emitter 2 is a point laser emitter.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A calibration apparatus for a radar calibration reflecting plate, comprising: the device comprises a laser transmitter (2), a first light-transmitting plate (3) and a second light-transmitting plate (4);
the laser emitter (2) emits a laser beam which is coincident with the center line of the travelling crane;
the laser beam passes through the center of the first light-transmitting plate (3) and the center of the second light-transmitting plate (4) in sequence to reach the radar calibration reflecting plate, or the laser beam passes through the center of the first light-transmitting plate (3) and the center of the second light-transmitting plate (4) in sequence to reach the radar calibration reflecting plate and then is reflected to the second light-transmitting plate (4) through the radar calibration reflecting plate.
2. The apparatus for calibrating a radar calibration reflecting plate according to claim 1, wherein the second transparent plate (4) comprises a light hole B, a light hole C and a light hole D in a straight line;
the light hole B is located at the center of the second light-transmitting plate (4), the light hole C and the light hole D are respectively located on the upper side and the lower side of the light hole B, and the distance from the light hole C to the light hole B is equal to the distance from the light hole D to the light hole B.
3. The apparatus for calibrating a radar calibration reflecting plate according to claim 1, wherein the first transparent plate (3) is a rectangular plate, and a light-transmitting hole A is formed in the center of the first transparent plate (3).
4. The calibration device for the radar calibration reflecting plate according to claim 1, further comprising a calibration frame (1), wherein the calibration frame (1) is a rectangular frame, and a transverse support frame and at least two longitudinal support frames are arranged in the middle of the rectangular frame, the transverse support frame and the longitudinal support frame are as long as the rectangular frame;
the laser emitter (2), the first light-transmitting plate (3) and the second light-transmitting plate (4) are all installed on the longitudinal supporting frame.
5. The calibration device for radar calibration reflecting plate according to claim 4, wherein the calibration frame (1) is made of aluminum alloy.
6. The calibration apparatus for radar calibration reflecting plate according to claim 4, wherein a set of brackets (5) is arranged at each of four top corners of the bottom of the calibration frame (1) for supporting the calibration frame; each bracket is provided with a positioning device (51), and the calibration frame (1) is also provided with a horizontal bubble (14).
7. The apparatus for calibrating radar calibration reflecting plate according to claim 1, further comprising a lifting mechanism, wherein the lifting mechanism comprises a telescopic mechanism and a chain mounted on the calibration frame (1), and the telescopic mechanism is connected with the chain.
8. The calibration device for radar calibration reflecting plate according to claim 1, wherein the laser transmitter (2) is a point laser transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121003327.6U CN215005851U (en) | 2021-05-11 | 2021-05-11 | Calibration equipment for radar calibration reflecting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121003327.6U CN215005851U (en) | 2021-05-11 | 2021-05-11 | Calibration equipment for radar calibration reflecting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215005851U true CN215005851U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121003327.6U Active CN215005851U (en) | 2021-05-11 | 2021-05-11 | Calibration equipment for radar calibration reflecting plate |
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| CN (1) | CN215005851U (en) |
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2021
- 2021-05-11 CN CN202121003327.6U patent/CN215005851U/en active Active
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