CN117128880A - A laser ranging calibration method and device - Google Patents
A laser ranging calibration method and device Download PDFInfo
- Publication number
- CN117128880A CN117128880A CN202310997208.4A CN202310997208A CN117128880A CN 117128880 A CN117128880 A CN 117128880A CN 202310997208 A CN202310997208 A CN 202310997208A CN 117128880 A CN117128880 A CN 117128880A
- Authority
- CN
- China
- Prior art keywords
- groove
- calibration
- block
- clamping block
- base
- 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
Links
Classifications
-
- 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
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/041—Allowing quick release of the apparatus
-
- 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
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/042—Calibration or calibration artifacts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Data Mining & Analysis (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Probability & Statistics with Applications (AREA)
- Operations Research (AREA)
- Evolutionary Biology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- Life Sciences & Earth Sciences (AREA)
- Bioinformatics & Computational Biology (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a laser ranging calibration method and a device, which relate to the technical field of tire testing, wherein the device comprises a base, a test board, a sensor positioning device, an electric driving device and a controller, wherein the test board is placed on the base; the electric driving device is arranged on the upper surface of the base and is used for moving the test board; the sensor positioning device comprises a fixed structure and a disassembly structure, wherein the fixed structure comprises a clamping block, a first damping spring, a sliding block, a connecting rod and a clamping block, a sliding groove and a clamping block groove are formed in the base, and the sensor positioning device can quickly and automatically realize a calibration process, avoid measurement errors caused by a manual operation process, automatically convert a calculation model aiming at a sensor with poor linearity and improve measurement accuracy after calibration.
Description
Technical Field
The invention relates to the technical field of tire testing, in particular to a laser ranging calibration method and device.
Background
At present, the tire runout degree detection uses a laser ranging principle, the tire runout degree is an important index for tire delivery detection, so that the accuracy of the tire runout degree detector directly influences the quality of the runout degree index, a plurality of standard size blocks need to be manually tested when the tire runout degree detection is carried out, the position accuracy is manually adjusted, the operation is inconvenient, the conventional runout degree detector is calibrated based on a linear model, and the measurement accuracy is low after the sensor with poor linearity is calibrated.
The laser ranging calibration method and device can eliminate the defects existing in the conventional device.
Disclosure of Invention
The invention aims to provide a laser ranging calibration method and device, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the laser ranging calibration device comprises a base, a test board, a sensor positioning device, an electric driving device and a controller, wherein the test board is placed on the base; the electric driving device is arranged on the upper surface of the base and is used for moving the test board; the controller is arranged on the upper surface of the base and used for realizing hardware actions and software calculation of the device.
Based on the technical scheme, the invention also provides the following optional technical schemes:
in one alternative: the sensor positioning device comprises a fixing structure and a dismounting structure, wherein the fixing structure comprises a clamping block, a first damping spring, a sliding block, a connecting rod and clamping blocks, a sliding groove and a clamping block groove are formed in a base, the sliding block is connected with the sliding block in a sliding mode on the inner side wall of the sliding groove, the first damping spring is fixedly connected between the bottom wall of the sliding block sliding groove and communicated with the sliding groove, two opposite clamping blocks are connected with the inner side wall of the sliding block groove in a sliding mode, the connecting rod is connected with the connecting rod in a rotating mode through a pin shaft, one end of the connecting rod, far away from the clamping block, is connected with the sliding block in a rotating mode through the pin shaft, two opposite clamping block grooves are formed in the inner side wall of the sliding groove, clamping blocks are connected with the inner side wall of the clamping block in a sliding mode, and a second damping spring is fixedly connected between the clamping block and the inner side wall of the clamping block groove, and a plurality of grooves corresponding to the clamping blocks are formed in the side wall of the sliding block.
In one alternative: the dismounting structure comprises a limiting block, a pull ring and a pull rope, wherein a pull rope groove and a limiting block groove are formed in the base, the limiting block is slidably connected with the limiting block groove, the limiting block groove is communicated with the clamping block groove through the pull rope groove, one end of the clamping block, which is close to the second damping spring, is fixedly connected with the pull rope, and the pull rope penetrates through the pull rope groove and extends into the limiting block groove to be fixedly connected with the limiting block, and the limiting block is located on the outer side wall of the limiting block groove and is fixedly connected with the pull ring.
In one alternative: the electric driving device comprises a first fixed block, a motor, a threaded rod and a second fixed block, wherein the first fixed block and the second fixed block are fixedly connected to the upper surface of the base, the threaded rod is rotationally connected between the first fixed block and the second fixed block through a bearing, a motor groove is formed in the first fixed block, the inner side wall of the motor groove is fixedly connected with the motor, the motor output end is fixedly connected with the threaded rod, and the threaded rod is in threaded connection with the test board.
In one alternative: the base is internally provided with a roller groove, the inner side wall of the roller groove is rotationally connected with a plurality of rollers through bearings, and the rollers are abutted to the lower surface of the test board.
In one alternative: and a standard displacement sensor is arranged in the first fixed block, and the output end of the standard displacement sensor is fixedly connected with the test board.
The invention also discloses a laser ranging calibration method, which comprises the following steps:
step one: setting an automatic correction program by the controller: setting a calibration range A, a calibration point number N, a repetition number N and a required precision s, controlling a threaded rod to drive a test board to perform motion control along the direction from small to large according to the set calibration range and the calibration point number, and recording a measured value x and an actual value y of each position;
step two: and (3) carrying out an average treatment on n times of repeated calibration data to obtain an average set of calibration data through the controller calibration ending calibration parameter, carrying out a linear fitting by utilizing a least square method to obtain a y=ax+b calibration curve, calculating the calibration precision s1, outputting a result (a, b, s 1) if the calibration precision s1 is larger than or equal to s, carrying out a quadratic fitting by utilizing the least square method again if s1 is smaller than s, calculating the calibration precision s2, outputting a result (a, b, c, s 2) if the calibration precision s2 is larger than or equal to s, carrying out a quadratic fitting by utilizing the least square method again if the calibration precision s2 is smaller than s, calculating the calibration precision s3, and outputting a result (a, b, c, d, s 3).
Compared with the prior art, the invention has the following beneficial effects:
1. the invention sets an automatic correction program through a controller, and firstly sets a calibration range A, a calibration point number N, a repetition number N and a required precision s; and performing motion control along the direction from small to large according to the set calibration range and the calibration point number, and recording the measured value xi and the actual value yi of each position. The automatic calibration process is achieved by setting N calibration points, the calibration time is greatly reduced, and the automatic operation avoids operation errors caused by manual operation.
2. According to the invention, a sensor model is automatically matched through a controller, when calibration is finished, calibration parameters are output, n times of repeated calibration data are subjected to average processing to obtain an average set of calibration data, a least square method is used for linear fitting to obtain a y=ax+b calibration curve, calibration precision s1 is calculated, if the calibration precision s1 is more than or equal to s, a result (a, b, s 1) is output, if s1 is less than s, a least square method is used for quadratic term fitting y=ax2+bx+c, and the calibration precision s2 is calculated, if the calibration precision s2 is more than or equal to s, a result (a, b, c, s 2) is output, if the calibration precision s2 is less than s, a least square method is used for quadratic term fitting y=ax3+bx2+cx+d, and the calibration precision s3 is calculated, and the result (a, b, c, d, s 3) is output. And automatically calculating a calibration curve and calibration parameters by inputting the calibration precision limit value, and confirming whether the calibration requirement is met according to the finally output parameters, thereby improving the precision.
3. The sensor positioning device comprises a fixing structure and a dismounting structure, wherein the fixing structure comprises a clamping block, a first damping spring, a sliding block, a connecting rod, clamping blocks, limiting blocks, pull rings and pull ropes, the laser ranging sensors are firstly placed on the sliding block, the laser ranging sensors are pressed downwards, the sliding block slides downwards and is pressed into a clamping block groove, when the groove part of the sliding block moves to the position of the clamping block, the clamping block slides into the groove, meanwhile, the sliding block drives the two clamping blocks to move in opposite directions through the connecting rod to fix the laser ranging sensors, due to the fact that the plurality of grooves are formed, when the sliding block slides downwards, the laser ranging sensors with different sizes can be clamped, when the sliding block needs to be dismounted, only the two pull rings need to be pulled, the pull rings drive the limiting blocks to move outwards, when the limiting blocks leave the limiting block groove, ninety degrees are rotated to enable the limiting blocks to be clamped outside the limiting block groove, the limiting blocks are driven by the pull ropes to leave the groove on the sliding block, the clamping blocks are taken out of the laser ranging sensors, the dismounting is completed, and the mounting and the dismounting is simple and quick.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a first view of the present invention.
Fig. 3 is a second view of the present invention.
Fig. 4 is a schematic view of the internal structure of the present invention.
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 in accordance with the present invention.
Fig. 6 is an enlarged view of fig. 4 at B in accordance with the present invention.
Reference numerals annotate: the device comprises a first fixed block, a motor 2, a standard displacement sensor 3, a roller groove 4, a base 5, a roller 6, a threaded rod 7, a test board 8, a laser ranging sensor 9, a clamping block 10, a controller 11, a sliding groove 12, a first damping spring 13, a second fixed block 14, a limiting block 15, a rope pulling groove 16, a clamping block 17, a second damping spring 18, a pulling rope 19, a sliding block 20, a connecting rod groove 21, a connecting rod 22 and a limiting rod 23.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
In one embodiment, as shown in fig. 1-6, a laser ranging calibration device comprises a base 5 and a test board 8, wherein the test board 8 is placed on the base 5, and further comprises a sensor positioning device, and the sensor positioning device is arranged in the base 5 and used for fixing a sensor; the electric driving device is arranged on the upper surface of the base 5 and is used for moving the test board 8; and the controller 11 is arranged on the upper surface of the base 5 and is used for realizing hardware actions and software calculation of the device.
In one embodiment, as shown in fig. 4, the sensor positioning device comprises a fixing structure and a dismounting structure, the fixing structure comprises a clamping block 10, a first damping spring 13, a sliding block 20, a connecting rod 22 and a clamping block 17, a sliding groove 12 and a clamping block groove are formed in a base 5, the sliding block 20 is slidably connected to the inner side wall of the sliding groove 12, the first damping spring 13 is fixedly connected between the bottom wall of the sliding groove 12 of the sliding block 20 and is communicated with the sliding groove 12 and the clamping block groove, two opposite clamping blocks 10 are slidably connected to the inner side wall of the clamping block groove, the connecting rod 22 is rotatably connected to the side wall of the clamping block 10 through a pin shaft, one end of the connecting rod 22, which is far away from the clamping block 10, is rotatably connected with the sliding block 20 through the pin shaft, two opposite clamping block grooves are formed in the inner side wall of the sliding groove 12, a clamping block 17 is slidably connected between the clamping block 17 and the inner side wall of the clamping block groove, a second damping spring 18 is fixedly connected to the inner side wall of the sliding block 20, and a plurality of grooves corresponding to the clamping block 17 are formed in the side wall of the sliding block 20. Firstly, the laser ranging sensor 9 is placed on the sliding block 20, the laser ranging sensor 9 is pressed downwards, the sliding block 20 slides downwards, the clamping block 17 is pressed into the clamping block groove, when the groove part of the sliding block 20 moves to the position of the clamping block 17, the clamping block 17 slides into the groove, meanwhile, the sliding block 20 drives the two clamping blocks 10 to move oppositely through the connecting rod 22, the laser ranging sensor 9 is fixed, and due to the plurality of grooves, the laser ranging sensor 9 with different sizes can be clamped when the sliding block 20 slides downwards, and the installation is very convenient and fast.
In one embodiment, as shown in fig. 4, the dismounting structure comprises a limiting block 15, a pull ring 24 and a pull rope 19, wherein a pull rope groove 16 and a limiting block groove are formed in the base 5, the limiting block 15 is slidably connected to the inner side wall of the limiting block groove, the limiting block groove is communicated with the clamping block groove through the pull rope groove 16, one end, close to the second damping spring 18, of the clamping block 17 is fixedly connected with the pull rope 19, and the pull rope 19 penetrates through the pull rope groove 16 and extends into the limiting block groove to be fixedly connected with the limiting block 15, and the side wall, located outside the limiting block groove, of the limiting block 15 is fixedly connected with the pull ring 24. When needs are dismantled, only need to stimulate two pull rings 24, pull rings 24 drive stopper 15 to remove outward the stopper groove, and when stopper 15 left the stopper groove, rotatory ninety degrees made stopper 15 card outside the stopper groove, stopper 15 drove the recess on the sliding block 20 of fixture block 17 departure through stay cord 19, take out laser range sensor 9 and can accomplish the dismantlement, and it is convenient to dismantle, easy operation is swift.
In one embodiment, as shown in fig. 1, the electric driving device comprises a first fixed block 1, a motor 2, a threaded rod 7 and a second fixed block 14, wherein the first fixed block 1 and the second fixed block 14 are fixedly connected to the upper surface of the base 5, the threaded rod 7 is rotatably connected between the first fixed block 1 and the second fixed block 14 through a bearing, a motor groove is formed in the first fixed block 1, the motor 2 is fixedly connected to the inner side wall of the motor groove, the output end of the motor 2 is fixedly connected with the threaded rod 7, and the threaded rod 7 is in threaded connection with the test board 8. The motor 2 is controlled by the controller 11 to drive the threaded rod 7 to rotate, the threaded rod 7 drives the test board 8 to move, and the standard displacement sensor measures the standard distance of the position of the test board 8 and transmits the data to the controller 11.
In one embodiment, as shown in fig. 1, a roller groove 4 is formed in a base 5, the inner side wall of the roller groove 4 is rotatably connected with a plurality of rollers 6 through bearings, and the rollers 6 are abutted against the lower surface of a test board 8. Friction at the bottom of the test plate 8 is reduced so that the test plate movement is more stable.
In one embodiment, as shown in fig. 4, a standard displacement sensor 3 is disposed in the first fixing block 1, and an output end of the standard displacement sensor 3 is fixedly connected with the test board 8. The standard displacement sensor 3 is used to detect standard displacement of the test plate 8.
The embodiment discloses a laser ranging calibrating device, wherein, firstly place laser ranging sensor 9 on slider 20, push down laser ranging sensor 9, slider 20 slides down, press the fixture block 17 into the fixture block inslot, when the recess part of slider 20 moves to the position of fixture block 17, fixture block 17 slides into the recess, simultaneously slider 20 passes through connecting rod 22 and drives two grip blocks 10 and move in opposite directions, fix laser ranging sensor 9, owing to be provided with a plurality of recesses, when slider 20 slides down, can the laser ranging sensor 9 of centre gripping not equidimension, install very convenient and fast, when needs dismantlement, only need pull two pull rings 24, pull ring 24 drive stopper 15 outwards removes to the stopper groove, when stopper 15 leaves the stopper groove, rotatory ten degrees make stopper 15 card outside the stopper groove, stopper 15 drives the recess on the slider 20 through stay cord 19, take out laser ranging sensor 9 can accomplish the dismantlement, it is convenient, easy and fast to operate, control motor 11 drives 7 through the controller 11, 7 drive the threaded rod 7, drive the test plate 8 and carry out the standard displacement data to the test plate, 8 and carry out the standard displacement sensor.
An automatic correction program is set by the controller 11: setting a calibration range A, a calibration point number N, a repetition number N and a required precision s, controlling a threaded rod 7 to drive a test board 8 to perform motion control along a small-to-large direction according to the set calibration range and the calibration point number, recording a measured value x and an actual value y of each position, automatically completing a calibration process by setting N calibration points, greatly reducing calibration time, and avoiding operation errors caused by manual operation by automatic operation.
The controller 11 is used for calibrating and outputting calibration parameters, averaging is carried out on n times of repeated calibration data to obtain an averaged group of calibration data, a least square method is used for linear fitting to obtain a y=ax+b calibration curve, the calibration precision s1 is calculated, if the calibration precision s1 is larger than or equal to s, the result (a, b, s 1) is output, if s1 is smaller than s, the least square method is used for quadratic fitting y=ax2+bx+c, the calibration precision s2 is calculated, if the calibration precision s2 is larger than or equal to s, the result (a, b, c, s 2) is output, if the calibration precision s2 is smaller than s, the least square method is used for quadratic fitting y=ax3+bx2+cx+d, the calibration precision s3 is calculated, and the result (a, b, c, d, s 3) is output. And automatically calculating a calibration curve and calibration parameters by inputting the calibration precision limit value, and confirming whether the calibration requirement is met according to the finally output parameters, thereby improving the precision.
The controller 11 is used for realizing the connection of sensor communication and power supply and the connection of a computer end/digital display instrument, setting parameters to the controller 11 through the computer end/digital display instrument, controlling the electric driving device according to the set parameters by the controller 11, collecting test results of the standard displacement sensor 3 and the laser displacement sensor 9, calibrating through an internal algorithm, and outputting the test results to the computer/digital display instrument through a communication module.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a laser rangefinder calibrating device, includes base (5) and test board (8), test board (8) are placed on base (5), its characterized in that: the sensor positioning device is arranged in the base (5) and used for fixing the sensor;
the electric driving device is arranged on the upper surface of the base (5) and used for moving the test board (8);
and the controller (11) is arranged on the upper surface of the base (5) and is used for realizing hardware actions and software calculation of the device.
2. The laser ranging calibration device according to claim 1, wherein the sensor positioning device comprises a fixing structure and a detaching structure, the fixing structure comprises a clamping block (10), a first damping spring (13), a sliding block (20), a connecting rod (22) and a clamping block (17), a sliding groove (12) and a clamping block groove are formed in the base (5), the sliding block (20) is slidably connected to the inner side wall of the sliding groove (12), the first damping spring (13) is fixedly connected between the bottom wall of the sliding block (20) and is communicated with the sliding groove (12) and the clamping block groove, two opposite clamping blocks (10) are slidably connected to the inner side wall of the clamping block groove, a connecting rod (22) is rotatably connected to the side wall of the clamping block (10) through a pin shaft, two opposite clamping block grooves are formed in the inner side wall of the sliding groove (12), clamping blocks (17) are slidably connected to the inner side wall of the sliding groove, and a plurality of corresponding clamping blocks (17) are formed between the clamping block (17) and the side wall of the clamping block groove and the clamping block groove, and the corresponding damping spring (18) are formed.
3. The laser ranging calibration device according to claim 2, wherein the disassembly structure comprises a limiting block (15), a pull ring (24) and a pull rope (19), a pull rope groove (16) and a limiting block groove are formed in the base (5), the limiting block groove is slidably connected with the limiting block (15), the limiting block groove is communicated with the clamping block groove through the pull rope groove (16), one end, close to the second damping spring (18), of the clamping block (17) is fixedly connected with the pull rope (19), and the pull rope (19) penetrates through the pull rope groove (16) and extends into the limiting block groove to be fixedly connected with the limiting block (15), and the side wall, located outside the limiting block groove, of the limiting block (15), is fixedly connected with the pull ring (24).
4. The laser ranging calibration device according to claim 3, wherein the electric driving device comprises a first fixed block (1), a motor (2), a threaded rod (7) and a second fixed block (14), the first fixed block (1) and the second fixed block (14) are fixedly connected to the upper surface of the base (5), the threaded rod (7) is rotatably connected between the first fixed block (1) and the second fixed block (14) through a bearing, a motor groove is formed in the first fixed block (1), a motor (2) is fixedly connected to the inner side wall of the motor groove, the output end of the motor (2) is fixedly connected with the threaded rod (7), and the threaded rod (7) is in threaded connection with the test board (8).
5. The laser ranging calibration device according to claim 4, wherein a roller groove (4) is formed in the base (5), a plurality of rollers (6) are rotatably connected to the inner side wall of the roller groove (4) through bearings, and the rollers (6) are abutted to the lower surface of the test board (8).
6. The laser ranging calibration device according to claim 5, wherein a standard displacement sensor (3) is arranged in the first fixed block (1), and the output end of the standard displacement sensor (3) is fixedly connected with the test board (8).
7. The laser ranging calibration method is characterized by comprising the following steps of:
step one: setting an automatic correction program by the controller (11): setting a calibration range A, a calibration point number N, a repetition number N and a required precision s, controlling a threaded rod (7) to drive a test board (8) to perform motion control along a direction from small to large according to the set calibration range and the calibration point number, and recording a measured value x and an actual value y of each position;
step two: and (3) carrying out calibration ending output calibration parameters through the controller (11), carrying out average processing on n times of repeated calibration data to obtain an average set of calibration data, carrying out linear fitting by utilizing a least square method to obtain a y=ax+b calibration curve, calculating the calibration precision s1, outputting a result (a, b, s 1) if the calibration precision s1 is larger than or equal to s, carrying out quadratic term fitting by utilizing the least square method again to obtain y=ax < 2+bx+c if s1 is smaller than s, calculating the calibration precision s2, outputting a result (a, b, c, s 2) if the calibration precision s2 is larger than or equal to s, carrying out quadratic term fitting by utilizing the least square method again to obtain y=ax+bx2+cx+d if the calibration precision s2 is smaller than s, calculating the calibration precision s3, and outputting the result (a, b, c, d, s 3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310997208.4A CN117128880A (en) | 2023-08-09 | 2023-08-09 | A laser ranging calibration method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310997208.4A CN117128880A (en) | 2023-08-09 | 2023-08-09 | A laser ranging calibration method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117128880A true CN117128880A (en) | 2023-11-28 |
Family
ID=88850129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310997208.4A Pending CN117128880A (en) | 2023-08-09 | 2023-08-09 | A laser ranging calibration method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117128880A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118875827A (en) * | 2024-10-08 | 2024-11-01 | 苏州新实达精密电子科技有限公司 | Mould motion detection calibration device and monitoring calibration method |
| CN120740427A (en) * | 2025-07-29 | 2025-10-03 | 中国计量科学研究院 | High-precision gauge block automatic measuring device based on dual-wavelength phase-shifting interference |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214999Y (en) * | 1995-01-27 | 1995-12-13 | 许易旗 | Push-butt lock |
| CN107861113A (en) * | 2017-11-06 | 2018-03-30 | 深圳市杉川机器人有限公司 | Scaling method and device |
| CN210119564U (en) * | 2019-05-20 | 2020-02-28 | 因泰立科技(天津)有限公司 | Calibration device for laser scanning distance measuring sensor |
| CN111308450A (en) * | 2020-03-13 | 2020-06-19 | 广东博智林机器人有限公司 | A laser radar calibration device and method of using the same |
| CN212111776U (en) * | 2020-03-12 | 2020-12-08 | 山东邦安工程项目管理有限公司 | Laser range finder calibration platform |
| CN218886161U (en) * | 2022-10-17 | 2023-04-18 | 北京瑞特工程建设监理有限责任公司 | Laser range finder calibrating device |
| CN116087920A (en) * | 2022-12-29 | 2023-05-09 | 挚感(苏州)光子科技有限公司 | Calibration system and method of FMCW laser range finder |
-
2023
- 2023-08-09 CN CN202310997208.4A patent/CN117128880A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214999Y (en) * | 1995-01-27 | 1995-12-13 | 许易旗 | Push-butt lock |
| CN107861113A (en) * | 2017-11-06 | 2018-03-30 | 深圳市杉川机器人有限公司 | Scaling method and device |
| CN210119564U (en) * | 2019-05-20 | 2020-02-28 | 因泰立科技(天津)有限公司 | Calibration device for laser scanning distance measuring sensor |
| CN212111776U (en) * | 2020-03-12 | 2020-12-08 | 山东邦安工程项目管理有限公司 | Laser range finder calibration platform |
| CN111308450A (en) * | 2020-03-13 | 2020-06-19 | 广东博智林机器人有限公司 | A laser radar calibration device and method of using the same |
| CN218886161U (en) * | 2022-10-17 | 2023-04-18 | 北京瑞特工程建设监理有限责任公司 | Laser range finder calibrating device |
| CN116087920A (en) * | 2022-12-29 | 2023-05-09 | 挚感(苏州)光子科技有限公司 | Calibration system and method of FMCW laser range finder |
Non-Patent Citations (1)
| Title |
|---|
| 赵建林等: "激光三角测距的一种实验标定方法", 西北工业大学学报, vol. 16, no. 3, 30 August 1998 (1998-08-30), pages 387 - 390 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118875827A (en) * | 2024-10-08 | 2024-11-01 | 苏州新实达精密电子科技有限公司 | Mould motion detection calibration device and monitoring calibration method |
| CN120740427A (en) * | 2025-07-29 | 2025-10-03 | 中国计量科学研究院 | High-precision gauge block automatic measuring device based on dual-wavelength phase-shifting interference |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105783837B (en) | A kind of third generation automobile hub bearing end-play automatic measurement mechanism | |
| CN106705869A (en) | Noncontact bearing ring outside diameter measurement device | |
| CN103615984A (en) | Comprehensive detection device of pipe body | |
| CN106767470A (en) | A kind of non-contact type bearing lasso inner diameter measuring device | |
| CN104515493B (en) | Automatic radial run-out measuring device | |
| CN204788229U (en) | Round detection device that beats | |
| CN112815866A (en) | Internal thread detector based on laser profile scanning and detection method thereof | |
| CN102192721A (en) | On -line detection equipment for automobile engine cylinder body | |
| CN109696138B (en) | Cylindricity detection device and eccentric calibration method thereof | |
| CN101762253A (en) | System and method for multi-sensor-based on-line multi-dimension measurement of special-shaped shaft-type workpieces | |
| CN107576669A (en) | A marking brush driving device for quality inspection of cable twisted wires | |
| CN109059766A (en) | A kind of non-contact detection device of deep groove ball bearing inner ring ditch position | |
| CN204405004U (en) | Valve spring physical dimension measures testing machine | |
| CN205482714U (en) | Poor measuring device of bearing mounting height and measurement system | |
| CN104713498A (en) | Three-point-supported automatic rotating angle detection tool | |
| CN106042001B (en) | Robot end's spatial position measuring device | |
| CN105783677A (en) | Simple detection device of circularity and linearity of bar stock | |
| CN207180613U (en) | Non-contact type bearing lasso external diameter measuring device | |
| CN214583088U (en) | A workpiece roundness measuring device | |
| CN110645884B (en) | Method for aligning radial magnetic suspension stator element of gyro accelerometer | |
| CN111811961B (en) | A wheel hub center spline sleeve casting quality inspection device based on machine vision | |
| CN207180615U (en) | Non-contact type bearing lasso inner diameter measuring device | |
| CN108214305A (en) | Abrasion of grinding wheel measurement equipment and abrasion of grinding wheel measuring method | |
| CN207991495U (en) | Ball screw screw raceway starting point special gauge | |
| CN203177810U (en) | Three-dimensional visual technology-based offline cigarette or filter rod detection device |
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 |