CN218412895U - Multi-line laser radar optical calibration jig - Google Patents
Multi-line laser radar optical calibration jig Download PDFInfo
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- CN218412895U CN218412895U CN202222467316.4U CN202222467316U CN218412895U CN 218412895 U CN218412895 U CN 218412895U CN 202222467316 U CN202222467316 U CN 202222467316U CN 218412895 U CN218412895 U CN 218412895U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The utility model discloses a multi-line laser radar optical calibration tool, including fixed station, multi-line laser radar, first fine-tuning platform, second fine-tuning platform, first regulating arm and second regulating arm. The fixed station is used for fixing the multi-line laser radar, and the multi-line laser radar comprises a first laser transmitting part and a second laser transmitting part. The first fine tuning table and the second fine tuning table are arranged on two sides of the fixed table; the first adjusting arm is arranged on the first fine adjustment platform and aligned with the first laser emitting part, and the second adjusting arm is arranged on the second fine adjustment platform and aligned with the second laser emitting part. The corresponding laser emitting parts are controlled and adjusted through the first adjusting arm and the second adjusting arm, so that the two laser emitting parts are optically calibrated at the same time. The micro-adjustment table and the adjusting arm are added, so that the multiple laser emitting parts of the multi-line laser radar can be optically calibrated simultaneously, and the optical calibration efficiency of the multi-line laser radar is improved.
Description
Technical Field
The utility model relates to a laser radar field especially relates to a multi-line laser radar optical calibration tool.
Background
The laser radar has the advantages of high precision, strong anti-interference capability, high reaction speed and the like as a radar device, thereby being suitable for various use environments. The lidar as described above may obtain related information such as a distance, a speed, and the like about a surrounding object by emitting a laser beam to a surrounding three-dimensional space as a probe signal, and causing the laser beam to be reflected as an echo signal and return after being irradiated to the object in the surrounding space, and comparing the received echo signal with the emitted probe signal.
The existing laser radar is divided into a single-line laser radar and a multi-line laser radar, wherein the multi-line laser radar can comprise a single laser transmitting part or a plurality of laser transmitting parts, the laser transmitting parts are required to be optically calibrated, the traditional method adopts single sequential calibration, and the optical calibration efficiency of the multi-line laser radar with the plurality of laser transmitting parts is lower.
The optical calibration jig for the multi-line laser radar can be used for simultaneously carrying out optical calibration on a plurality of laser emitting parts of the multi-line laser radar, and the optical calibration efficiency of the multi-line laser radar is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a multi-thread laser radar optical calibration tool is provided with two micromatic devices of first fine setting platform and second fine setting platform, adjusts the laser emission portion that corresponds through first regulating arm and second regulating arm control respectively, has realized carrying out optical calibration to two laser emission portions simultaneously.
The utility model discloses a technical scheme specifically be: the utility model provides a multi-line laser radar optical calibration tool, includes fixed station, multi-line laser radar, first fine setting platform, second fine setting platform, first regulating arm and second regulating arm. The fixing table is used for fixing a multi-line laser radar, and the multi-line laser radar comprises a first laser emitting part and a second laser emitting part; the first fine tuning table and the second fine tuning table are arranged on two sides of the fixed table; the first adjusting arm is arranged on the first fine adjustment platform and aligned with the first laser emitting part, and the second adjusting arm is arranged on the second fine adjustment platform and aligned with the second laser emitting part.
As the utility model discloses technical scheme's an alternative, the fixed station includes first base, the fixed L type mount that is provided with on the first base, L type mount bottom is provided with the spacing groove, and the top is fixed and is provided with anchor clamps.
As the utility model discloses technical scheme's an alternative, be provided with the radar stationary vane on the multi-thread laser radar, radar stationary vane and spacing groove phase-match.
As the utility model discloses technical scheme's an alternative, first fine-tuning platform includes the second base, the fixed first horizontal sharp slip table that is provided with on the second base, be provided with first T type platform on the first horizontal sharp slip table, first T type platform side is fixed and is provided with first vertical sharp slip table, fixed first rotatory slip table that is provided with on the first vertical sharp slip table.
As a technical scheme of the utility model an alternative, first regulating arm level sets up, and with first rotatory slip table fixed connection.
As the utility model discloses technical scheme's an alternative, the second fine-tuning platform includes the third base, the fixed horizontal sharp slip table of second that is provided with on the third base, be provided with second T type platform on the horizontal sharp slip table of second, the fixed vertical sharp slip table of second that is provided with of second T type platform side, the fixed rotatory slip table of second that is provided with on the vertical sharp slip table of second.
As an alternative of the technical scheme of the utility model, the second regulating arm level sets up, and with rotatory slip table fixed connection of second.
As an alternative of the technical scheme of the present invention, support legs are arranged on both sides of the first laser emitting portion in an extending manner, and through holes are arranged on the support legs; the first laser emitting part is also provided with a fixing hole and a spring probe groove.
As the utility model discloses technical scheme's an alternative, first regulating arm tip is provided with pillar and spring probe, the pillar cooperatees with the through-hole, spring probe cooperatees with the spring probe groove.
The utility model discloses the beneficial effect who gains is: through being provided with two micromatic devices of first fine setting platform and second fine setting platform in fixed station both sides, respectively through first regulating arm and the corresponding laser emission portion of second regulating arm control regulation, realized carrying out optical calibration to two laser emission portions simultaneously. The micro-adjustment table and the adjusting arm are added, so that the multiple laser emitting parts of the multi-line laser radar can be optically calibrated simultaneously, and the optical calibration efficiency of the multi-line laser radar is improved.
Drawings
Fig. 1 is a schematic view of the whole calibration jig according to the present invention.
Fig. 2 is an overall schematic view of the fixing table according to the present invention.
Fig. 3 is a schematic structural view of a first laser emitting portion according to the present invention.
Fig. 4 is an overall schematic view of a first fine tuning table according to the present invention.
Fig. 5 is an overall schematic view of a second fine tuning stage according to the present invention.
Fig. 6 is a schematic view of the end structure of the first adjusting arm according to the present invention.
Wherein, 100-fixed table; 110-a first base; a 120-L shaped mount; 130-a limiting groove; 140-a clamp; 200-multiline laser radar; 210-a first laser emitting portion; 211-foot; 212-a via; 213-a fixing hole; 214-spring probe slot; 220-a second laser emitting portion; 230-radar fixed wing; 300-a first fine tuning stage; 310-a second base; 320-a first transverse linear sliding table; 330-first T-table; 340-a first longitudinal linear slide; 350-a first rotary slide; 400-a second fine tuning stage; 410-a third base; 420-a second transverse linear sliding table; 430-a second T-table; 440-a second longitudinal linear slide; 450-a second rotary slide; 500-a first adjustment arm; 510-a pillar; 520-spring probe; 600-a second adjustment arm.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention. All other embodiments obtained by a person skilled in the art without any inventive step based on the following embodiments belong to the protection scope of the present invention. The embodiment of the utility model provides an example that uses: parts such as anchor clamps, horizontal sharp slip table, vertical sharp slip table and rotatory slip table are common adjusting device, can directly purchase the use in market, all do not belong to the utility model discloses a protection scope.
It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the drawings and are only for the convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the middle position of the overall multi-line lidar optical calibration fixture is provided with a fixing station 100, the fixing station 100 is fixed with a multi-line lidar 200 to be calibrated, the left side of the fixing station 100 is provided with a first fine tuning stage 300, and the right side of the fixing station 100 is provided with a second fine tuning stage 400. First fine-tuning platform 300 is connected with multiline laser radar 200 bottom laser emission portion through first regulating arm 500, and second fine-tuning platform 400 is connected with multiline laser radar 200 top laser emission portion through second regulating arm 600.
As shown in fig. 2, the fixing table 100 includes a first base 110 at the bottom, an L-shaped fixing frame 120 vertically fixed on the first base 110, a limiting groove 130 at the bottom of the L-shaped fixing frame 120, and a clamp 140 fixed at the top. As shown in fig. 2, the multi-line laser radar device further includes a multi-line laser radar 200 to be calibrated, a first laser emitting portion 210 and a second laser emitting portion 220 are disposed at the tail of the multi-line laser radar 200, and a radar fixing wing 230 is disposed at the side of the multi-line laser radar 200. The multi-line laser radar 200 is vertically placed on the L-shaped fixing frame 120, the radar fixing wings 230 are embedded into the limiting grooves 130 at the bottom of the L-shaped fixing frame 120, the top of the multi-line laser radar is clamped and fixed through the clamp 140, the first laser emitting portion 210 is arranged at the bottom of the multi-line laser radar, and the second laser emitting portion 220 is arranged at the top of the multi-line laser emitting portion.
It should be noted that, in the present embodiment, the first laser emitting portion 210 and the second laser emitting portion 220 have the same structure, and therefore, the end portion of the first adjusting arm 500 and the end portion of the second adjusting arm 600 matching with the first laser emitting portion have the same structure. The detailed description of the first laser emitting portion 210 and the end portion of the first adjusting arm 500 in the present embodiment is equally applicable to the second laser emitting portion 220 and the second adjusting arm 600. However, the laser emitters used in the laser emitting portion may be the same laser emitter or different laser emitters, and may be Edge Emitting Lasers (EELs) or Vertical Cavity Surface Emitting Lasers (VCSELs).
As shown in fig. 3, the first laser emitting portion 210 is a rectangular structure, four support legs 211 are disposed on two sides of the first laser emitting portion 210 in the horizontal direction, through holes 212 are disposed on the support legs 211, a fixing hole 213 and a spring probe groove 214 are further disposed on the first laser emitting portion 210, the fixing hole 213 is used for being matched with a screw to fix the first laser emitting portion 210 on the multi-line laser radar 200, and the spring probe groove 214 is a placement position of the spring probe 520.
As shown in fig. 4, an overall schematic view of the first fine adjustment stage 300 includes a second base 310 including a bottom, a first transverse linear sliding table 320 is fixedly disposed on the second base 310, a first T-shaped table 330 is fixedly disposed on a sliding surface of the first transverse linear sliding table 320, a transverse surface of the first T-shaped table 330 is fixed to the sliding surface of the first transverse linear sliding table 320, a longitudinal surface of the first T-shaped table 330 is fixedly provided with a first longitudinal linear sliding table 340, a sliding surface of the first longitudinal linear sliding table 340 is fixedly provided with a first rotary sliding table 350, a first adjustment arm 500 is disposed on the first rotary sliding table 350, and an end of the first adjustment arm 500 is aligned with a position of the first laser emitting portion 210.
As shown in fig. 5, the overall schematic view of the second fine adjustment table 400 includes a third base 410 at the bottom, a second transverse linear sliding table 420 is fixedly disposed on the third base 410, a second T-shaped table 430 is fixedly disposed on a sliding surface of the second transverse linear sliding table 420, a transverse surface of the second T-shaped table 430 is fixed to the sliding surface of the second transverse linear sliding table 420, a second longitudinal linear sliding table 440 is fixedly disposed on a longitudinal surface of the second T-shaped table 430, a second rotary sliding table 450 is fixedly disposed on the sliding surface of the second longitudinal linear sliding table 440, a second adjustment arm 600 is disposed on the second rotary sliding table 450, and an end of the second adjustment arm 600 is aligned with the second laser emitting portion 220.
As shown in fig. 6, the end of the first adjusting arm 500 is provided with a pillar 510, and the pillar 510 is aligned with the through hole 212 of the first laser emitting part 210; spring probes 520 are also provided, the spring probes 520 being positioned in alignment with the spring probe slots 214. The detailed structure of the end of the first adjusting arm 500 is designed according to different structures of the laser emitting part, and when the laser emitting part is adjusted, in order to avoid pressing electronic components on the laser emitting part, hollowing is performed at a corresponding position, so that the detailed structure is not limited.
The invention will be further understood by the following description of the steps of using the optical calibration jig for the multiline lidar 200:
s1, firstly, a fixed table 100, a first fine adjustment table 300 and a second fine adjustment table 400 are installed on an optical platform, a first adjusting arm 500 is installed on a first rotary sliding table 350, a second adjusting arm 600 is installed on a second rotary sliding table 450, and the transverse direction, the longitudinal direction and the angle of the first fine adjustment table 300 and the second fine adjustment table 400 are roughly adjusted to reach required positions;
s2, placing the first laser emitting part 210 and the second laser emitting part 220 at the end parts of the first adjusting arm 500 and the second adjusting arm 600, enabling the support column 510 to penetrate through the through hole 212, and enabling the end part of the spring probe 520 to be located in the spring probe groove 214;
s3, the multi-line laser radar 200 is placed on the fixing table 100, the radar fixing wings 230 are embedded into the limiting grooves 130 at the bottom of the L-shaped fixing frame 120, the positions are adjusted to enable the spring probes 520 to press the first laser emitting portion 210 and the second laser emitting portion 220 onto the multi-line laser radar 200, and the clamp 140 is locked to fix the multi-line laser radar 200;
s4, adjusting the first fine adjustment table 300 and the second fine adjustment table 400, simultaneously carrying out optical test on the first laser emitting part 210 and the second laser emitting part 220 until the first laser emitting part 210 and the second laser emitting part 220 are adjusted to the required positions, and fixing the first laser emitting part 210 and the second laser emitting part 220 on the multi-line laser radar 200 by using screws to penetrate through the fixing holes 213;
s5, opening the clamp 140, taking out the multi-line laser radar 200 and finishing optical calibration.
In summary, the present embodiment has the following beneficial effects: through being provided with two micromatic setting of first fine setting platform 300 and second fine setting platform 400 at fixed station 100 both sides, respectively through first regulating arm 500 and second regulating arm 600 control regulation corresponding laser emission portion, realized simultaneously carrying out optical calibration to two laser emission portions. The micro-adjustment table and the adjusting arm are added, so that the multiple laser emitting parts of the multi-line laser radar can be optically calibrated simultaneously, and the optical calibration efficiency of the multi-line laser radar is improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; when the technical solutions are contradictory or cannot be combined, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Claims (9)
1. The utility model provides a multi-thread laser radar optical calibration tool which characterized in that includes:
the multi-line laser radar comprises a fixed platform and a multi-line laser radar, wherein the fixed platform is used for fixing the multi-line laser radar, and the multi-line laser radar comprises a first laser emitting part and a second laser emitting part;
the first fine tuning table and the second fine tuning table are arranged on two sides of the fixed table;
the laser device comprises a first adjusting arm and a second adjusting arm, wherein the first adjusting arm is arranged on a first fine adjustment platform and is aligned with a first laser emitting part, and the second adjusting arm is arranged on a second fine adjustment platform and is aligned with a second laser emitting part.
2. The multiline lidar optical calibration fixture of claim 1 wherein the fixed stage includes a first base, an L-shaped mount is fixedly disposed on the first base, a limiting groove is disposed at the bottom of the L-shaped mount, and a clamp is fixedly disposed at the top of the L-shaped mount.
3. The multiline lidar optical calibration fixture of claim 2 wherein the multiline lidar is provided with a radar fixing wing which is matched with the limit groove.
4. The multi-line lidar optical calibration fixture of claim 1, wherein the first fine adjustment stage comprises a second base, a first transverse linear sliding table is fixedly arranged on the second base, a first T-shaped stage is arranged on the first transverse linear sliding table, a first longitudinal linear sliding table is fixedly arranged on the side surface of the first T-shaped stage, and a first rotary sliding table is fixedly arranged on the first longitudinal linear sliding table.
5. The multiline lidar optical calibration fixture of claim 4 wherein the first adjustment arm is horizontally disposed and fixedly connected to the first rotating ramp.
6. The multi-line lidar optical calibration fixture of claim 1, wherein the second fine adjustment stage comprises a third base, a second transverse linear sliding table is fixedly arranged on the third base, a second T-shaped stage is arranged on the second transverse linear sliding table, a second longitudinal linear sliding table is fixedly arranged on the side surface of the second T-shaped stage, and a second rotary sliding table is fixedly arranged on the second longitudinal linear sliding table.
7. The multiline lidar optical calibration fixture of claim 6 wherein the second adjustment arm is horizontally disposed and fixedly connected to the second rotating ramp.
8. The multiline lidar optical calibration fixture of claim 1 wherein legs are provided on both sides of the first laser emitting portion, and through holes are provided on the legs; the first laser emitting part is also provided with a fixing hole and a spring probe groove.
9. The multiline lidar optical calibration fixture of claim 8 wherein the first adjustment arm end is provided with a post that mates with the through hole and a spring probe that mates with a spring probe slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222467316.4U CN218412895U (en) | 2022-09-19 | 2022-09-19 | Multi-line laser radar optical calibration jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222467316.4U CN218412895U (en) | 2022-09-19 | 2022-09-19 | Multi-line laser radar optical calibration jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218412895U true CN218412895U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222467316.4U Active CN218412895U (en) | 2022-09-19 | 2022-09-19 | Multi-line laser radar optical calibration jig |
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|---|---|
| CN (1) | CN218412895U (en) |
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- 2022-09-19 CN CN202222467316.4U patent/CN218412895U/en active Active
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