CN115267752A - Multi-line laser radar optical calibration jig - Google Patents

Multi-line laser radar optical calibration jig Download PDF

Info

Publication number
CN115267752A
CN115267752A CN202211134527.4A CN202211134527A CN115267752A CN 115267752 A CN115267752 A CN 115267752A CN 202211134527 A CN202211134527 A CN 202211134527A CN 115267752 A CN115267752 A CN 115267752A
Authority
CN
China
Prior art keywords
optical calibration
laser radar
laser emitting
laser
adjusting arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211134527.4A
Other languages
Chinese (zh)
Inventor
姜波
寇银波
马建荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruichi Zhiguang Suzhou Technology Co ltd
Original Assignee
Ruichi Zhiguang Suzhou Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ruichi Zhiguang Suzhou Technology Co ltd filed Critical Ruichi Zhiguang Suzhou Technology Co ltd
Priority to CN202211134527.4A priority Critical patent/CN115267752A/en
Publication of CN115267752A publication Critical patent/CN115267752A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

The invention discloses an optical calibration jig for a multi-line laser radar, which comprises a fixed table, the multi-line laser radar, a first fine adjustment table, a second fine adjustment table, a first adjusting arm and a second adjusting 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

Multi-line laser radar optical calibration jig
Technical Field
The invention relates to the field of laser radars, in particular to an optical calibration jig for a multi-line laser radar.
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.
Disclosure of Invention
The invention discloses a multi-line laser radar optical calibration jig which is provided with a first fine adjustment table and a second fine adjustment table, wherein corresponding laser emission parts are controlled and adjusted through a first adjusting arm and a second adjusting arm respectively, and optical calibration of the two laser emission parts is realized simultaneously.
The technical scheme adopted by the invention is as follows: 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 an alternative scheme of the technical scheme, the fixing table comprises a first base, an L-shaped fixing frame is fixedly arranged on the first base, a limiting groove is formed in the bottom of the L-shaped fixing frame, and a clamp is fixedly arranged at the top of the L-shaped fixing frame.
As an alternative scheme of the technical scheme of the invention, the multi-line laser radar is provided with a radar fixing wing, and the radar fixing wing is matched with the limiting groove.
As an alternative of the technical scheme of the invention, the first fine adjustment table comprises a second base, a first transverse linear sliding table is fixedly arranged on the second base, a first T-shaped table 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 table, and a first rotary sliding table is fixedly arranged on the first longitudinal linear sliding table.
As an alternative scheme of the technical scheme, the first adjusting arm is horizontally arranged and is fixedly connected with the first rotating sliding table.
As an alternative of the technical scheme of the invention, the second fine adjustment table comprises a third base, a second transverse linear sliding table is fixedly arranged on the third base, a second T-shaped table 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 table, and a second rotary sliding table is fixedly arranged on the second longitudinal linear sliding table.
As an alternative scheme of the technical scheme, the second adjusting arm is horizontally arranged and is fixedly connected with the second rotary sliding table.
As an alternative of the technical scheme of the invention, support legs are arranged on two sides of the first laser emission part 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 an alternative of the technical solution of the present invention, a pillar and a spring probe are disposed at an end of the first adjusting arm, the pillar is matched with the through hole, and the spring probe is matched with the spring probe groove.
The beneficial effects obtained by the invention are as follows: 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 general schematic diagram of a calibration fixture according to the present invention.
Fig. 2 is an overall view of a stationary stage according to the present invention.
Fig. 3 is a schematic structural diagram of a first laser emitting portion according to the present invention.
FIG. 4 is a schematic view of a first fine tuning stage according to the present invention.
FIG. 5 is a schematic view of a second trim station according to the present invention.
FIG. 6 is a schematic view of an end portion of a first adjustment arm according to the present invention.
Wherein, 100-fixed station; 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 fixation 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-a first T-shaped 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 advantages solved by the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific examples are illustrative only and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the following examples, belong to the scope of protection of the present invention. Examples used in the embodiments of the present invention are: the clamp, the transverse linear sliding table, the longitudinal linear sliding table, the rotary sliding table and other parts are all common adjusting devices, can be directly purchased and used in the market, and do not belong to the protection scope of the invention.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the drawings, and are simply for convenience of description of the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, 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 meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill 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 device. 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. 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 unit 210 is a rectangular structure, four support legs 211 are disposed on two sides of the first laser emitting unit 210 in the horizontal direction, through holes 212 are disposed on the support legs 211, fixing holes 213 and spring probe grooves 214 are further disposed on the first laser emitting unit 210, the fixing holes 213 are used for being matched with screws to fix the first laser emitting unit 210 on the multi-line laser radar 200, and the spring probe grooves 214 are the placing positions of the spring probes 520.
As shown in fig. 4, the overall schematic view of the first fine adjustment table 300 includes a second base 310 at the 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 first longitudinal linear sliding table 340 is fixedly disposed on a longitudinal surface of the first T-shaped table 330, a first rotary sliding table 350 is fixedly disposed on the sliding surface of the first longitudinal linear sliding table 340, 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 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 use of the multiline lidar 200 optical calibration fixture:
s1, firstly, mounting a fixed table 100, a first fine adjustment table 300 and a second fine adjustment table 400 on an optical platform, mounting a first adjusting arm 500 on a first rotary sliding table 350, mounting a second adjusting arm 600 on a second rotary sliding table 450, and roughly adjusting the transverse direction, the longitudinal direction and the angle of the first fine adjustment table 300 and the second fine adjustment table 400 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 for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. 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; where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed 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 fixing device comprises a fixing table and a multi-line laser radar, wherein the fixing table 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 slide table is fixedly arranged on the third base, a second T-shaped stage is arranged on the second transverse linear slide table, a second longitudinal linear slide table is fixedly arranged on the side surface of the second T-shaped stage, and a second rotary slide table is fixedly arranged on the second longitudinal linear slide 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 support legs are provided on both sides of the first laser emitting portion, and through holes are provided on the support 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.
CN202211134527.4A 2022-09-19 2022-09-19 Multi-line laser radar optical calibration jig Pending CN115267752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211134527.4A CN115267752A (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
CN202211134527.4A CN115267752A (en) 2022-09-19 2022-09-19 Multi-line laser radar optical calibration jig

Publications (1)

Publication Number Publication Date
CN115267752A true CN115267752A (en) 2022-11-01

Family

ID=83757273

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211134527.4A Pending CN115267752A (en) 2022-09-19 2022-09-19 Multi-line laser radar optical calibration jig

Country Status (1)

Country Link
CN (1) CN115267752A (en)

Similar Documents

Publication Publication Date Title
US20040163242A1 (en) Parts mounting method and parts mounting apparatus
CN109917357B (en) Laser radar whole focusing method and laser radar focusing device
CN218412895U (en) Multi-line laser radar optical calibration jig
CN115267752A (en) Multi-line laser radar optical calibration jig
CN216815959U (en) Rapid high-precision wide-spectrum optical wave plate detection system
CN215813327U (en) Laser radar timing device
CN216350958U (en) Millimeter wave antenna test rotary table and system
CN111366792A (en) Power testing device and method based on anteverted beam
CN110596675A (en) Laser emission device and laser radar system
CN114527566A (en) Manufacturing method of rotating mirror device
CN112904096A (en) Three-dimensional high-precision antenna turntable testing device
CN115808672A (en) Coupling method of dToF laser radar range finding machine core
CN116736273A (en) Test system and test method
CN115407316A (en) Test equipment
CN212134823U (en) Power testing device based on anteverted beam
CN221924964U (en) Precision rotation cradle head error measuring instrument
CN218584996U (en) Laser radar optical axis calibrating device
US7091922B2 (en) Laser alignment apparatus and method
CN215862511U (en) Quick sectional fixture of radar laser transmitter
CN108194602B (en) Positioning device and positioning method for stop block
CN215894957U (en) Laser radar's base plate assembly structure and have this laser radar
CN111896921A (en) Alignment mechanism and alignment method for radar calibration system
CN112444684A (en) Method and measuring mechanism for measuring antenna in antenna system in back point needle mode
CN211374895U (en) Antenna measuring mechanism
CN218497146U (en) MEMS galvanometer resonance angle optical detection assembly

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination