CN209541666U - Caliberating device and calibration system - Google Patents
Caliberating device and calibration system Download PDFInfo
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- CN209541666U CN209541666U CN201920452549.2U CN201920452549U CN209541666U CN 209541666 U CN209541666 U CN 209541666U CN 201920452549 U CN201920452549 U CN 201920452549U CN 209541666 U CN209541666 U CN 209541666U
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Abstract
The utility model discloses a kind of caliberating device and calibration systems, and calibration element is set on the base, then by pedestal setting on adjusting component, adjust on component so that calibration element is stablized to be supported on, and are conducive to the reliability for improving calibration result；Then, by the way that adjusting component is adjusted, the first plan-position for demarcating face on calibration element is enabled to be adjusted to required position, so that laser scanner carries out accurate and effective measurement to the first calibration face.Since the motion track in the first calibration face and laser scanner is arranged in parallel, laser scanner keeps constant spacing with the first calibration face always in moving process, so as to the accurate and effective measuring accuracy for judging laser scanner.
Description
Technical field
The utility model relates to road surface field of measuring technique, more particularly to a kind of caliberating device and calibration system.
Background technique
The antiskid performance on road surface is always that people are concerned about and study more problem.How asphalt table is accurately measured
Surface construction, especially microtexture and macrostructure, and it is objective comprehensively evaluate its surface structure characteristic, be road worker urgently
Problem to be solved.Road surface construction test method specified in current Chinese code of practice mainly has sand patch method, pendulum type friction system
Number tester method.Wherein sand patch method and swinging friction coefficient tester method, since operating process is affected by human factor,
Cause test result discreteness larger, precision is not high.
It has now been found that pavement texture construction is the most direct factor for influencing antiskid performance, and some research aircrafts at present
Structure mainly uses the Laser Scanning Equipment of independent research to acquire pavement structure topographic data in engineering site.For laser equipment
Can the precision of assembling process meet research and application requirement, and how is the precision in long-time use process, how be needed
The parameter of calibration is the key that skid resistance of pavement is capable of measuring so as to guide the amendment of follow-up data processing.Therefore, one kind is developed
Caliberating device and method for high-precision laser scanner is most important.
Utility model content
Based on this, it is necessary to provide a kind of caliberating device and calibration system, be capable of the test of accurate calibration laser scanner
Precision.
Its technical solution is as follows:
A kind of caliberating device, comprising: pedestal；Calibration element, the calibration element are arranged on the base, on the calibration element
Equipped with the first calibration face, the first calibration face is used to be arranged in parallel with the motion track of laser scanner；And adjust component, institute
It states pedestal to be arranged on the adjusting component, the plan-position for adjusting component and being used to adjust first calibration face.
Above-mentioned caliberating device, calibration element is set on the base, then by pedestal setting on adjusting component, so that calibration
Part, which is stablized to be supported on, to be adjusted on component, and the reliability for improving calibration result is conducive to；Then, by being adjusted to adjusting component
Section enables the first plan-position for demarcating face on calibration element to be adjusted to required position, so that laser scanner is marked to first
Determine face and carries out accurate and effective measurement.Since the motion track in the first calibration face and laser scanner is arranged in parallel, laser
Scanner keeps constant spacing with the first calibration face always in moving process, judges that laser is swept so as to accurate and effective
Retouch the measuring accuracy of instrument.
Be additionally provided with the second calibration face on the calibration element in one of the embodiments, the second calibration face with it is described
First calibration face is set side by side；The distance from bottom L of the second calibration relatively described calibration element in face2Less than first calibration face
The distance from bottom L of the relatively described calibration element1。
Be additionally provided with the second calibration face on the calibration element in one of the embodiments, the second calibration face with it is described
First calibration face is set side by side；The distance from bottom L of the second calibration relatively described calibration element in face2Greater than first calibration face
The distance from bottom L of the relatively described calibration element1。
Second calibration face is two or more in one of the embodiments, more than two second calibration faces
It is disposed in parallel on the calibration element；The distance from bottom L of the second calibration relatively described calibration element in face2Along the calibration element
Width direction be gradually increased or be gradually reduced.
The adjusting component includes supporting element and the first leveling part, the supporting element setting in one of the embodiments,
On the first leveling part, and height of the supporting element on the first leveling part is adjustable, and the pedestal is arranged in institute
It states on supporting element.
The supporting element and the first leveling part are two or more in one of the embodiments, the supporting element
It is arranged in a one-to-one correspondence with the first leveling part, the pedestal is arranged on more than two supporting elements.
Caliberating device further includes level indicator in one of the embodiments, and the level indicator is arranged described
On pedestal.
A kind of calibration system, including caliberating device described in guide rail, laser scanner and any of the above one, the laser
Scanner is slidably matched with the guide rail, and the guide rail is extended along the length direction in first calibration face.
Above-mentioned calibration system, the caliberating device more than, calibration element is set on the base, then pedestal setting is existed
It adjusts on component, is adjusted on component so that calibration element is stablized to be supported on, be conducive to the reliability for improving calibration result；Then, lead to
It crosses and adjusting component is adjusted, the first plan-position for demarcating face on calibration element is enabled to be adjusted to required position, so as to
Laser scanner carries out accurate and effective measurement to the first calibration face.Since guide rail extends along the length direction in the first calibration face
Setting, therefore, laser scanner keeps constant spacing with the first calibration face always in moving process, so as to it is accurate, have
Effect judges the measuring accuracy of laser scanner.
Calibration system further includes bracket in one of the embodiments, and the guide rail setting is on the bracket.
Calibration system further includes the second leveling part in one of the embodiments, and the bracket setting is adjusted described second
In horizontal member, and height of the bracket on the second leveling part is adjustable.
The bracket is two or more in one of the embodiments, and the guide rail is arranged in more than two branch
On frame.
A kind of scaling method, comprising the following steps: along the length direction in the first calibration face, mobile laser scanner or
Spacing is preset in calibration element, every movement first, and the laser scanner is measured the first calibration face, obtains described first
Calibration face is using pedestal as the height average h in benchmark face1,avg；After obtaining height average, the mobile laser scanner or
Spacing is preset in calibration element described in person, every movement second, and the laser scanner is measured the first calibration face, and exports
Using pedestal as the test height value h of seat surfacei,1, wherein i is natural number；By the test height value hi,1With first calibration
The height average h in face1,avgSubtract each other, obtains the height error d in first calibration facei,1, and to the height in first calibration face
Spend error di,1Carry out error analysis.
Above-mentioned scaling method, along the length direction in the first calibration face, mobile laser scanner or calibration element, so that
Laser scanner measures multiple groups using pedestal as the height value in benchmark face, to multiple groups using pedestal as the height in benchmark face on calibration element
Value carries out the h that averages1,avg.Height average and then secondary mobile laser scanner or calibration element are obtained, so that laser scanning
Instrument measures multiple groups using pedestal as the test height value h in benchmark face againi,1, by resulting test height value hi,1Subtract average value
h1,avgObtain the height error d in the first calibration facei,1, pass through the height error d in the first calibration of analysis facei,1, so that operator
Effectively and it can be accurately judged to the measuring accuracy of laser scanner, so as to quickly determine laser scanner on test road surface
The accuracy of Micro texture data.
The step in one of the embodiments, further include: along the length direction in one of them the second calibration face, move
The laser scanner or the calibration element are moved, every mobile third presets spacing, and the laser scanner is to second mark
Determine face to be measured, obtains the second calibration face using the pedestal as the height average h of seat surfacem,avg, wherein m is nature
The bottom level of number, and m >=2, the second calibration face relative Calibration part demarcates the bottom level of face relative Calibration part less than first；?
Out after height average, the mobile laser scanner or the calibration element, the default spacing of every movement the 4th, the laser
Scanner is measured the second calibration face, and exports using pedestal as the test height value h of seat surfacej,m, wherein j is certainly
So number；By the test height value hj,mWith the height average h in second calibration facem,avgSubtract each other, obtains second calibration
The height error d in facej,m；To the height error d in first calibration facei,1With the height error d in second calibration facej,mPlace
Reason, and carry out error analysis.
Detailed description of the invention
Fig. 1 is caliberating device structural schematic diagram described in an embodiment of the present invention；
Fig. 2 is calibration element structural schematic diagram described in an embodiment of the present invention；
Fig. 3 is that pedestal described in an embodiment of the present invention and adjusting component cooperate schematic diagram；
Fig. 4 is that laser scanner described in an embodiment of the present invention and guide rail cooperate schematic diagram；
Fig. 5 is scaling method flow diagram described in an embodiment of the present invention；
Fig. 6 is scaling method flow diagram described in another embodiment of the utility model；
Fig. 7 is average error described in an embodiment of the present invention and length relation curve graph.
Description of symbols:
100, caliberating device, 110, pedestal, 120, calibration element, the 121, first calibration face, the 122, second calibration face, 130, tune
Section component, 131, supporting element, the 132, first leveling part, 140, level indicator, 200, laser scanner, 300, guide rail, 400,
Bracket, the 500, second leveling part.
Specific embodiment
It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the protection scope of the utility model is not limited.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein packet
Include any and all combinations of one or more related listed items.
" first " described in the utility model, " second " do not represent specific quantity and sequence, are only used for title
It distinguishes.
In one embodiment, Fig. 1, Fig. 2 and Fig. 4, a kind of caliberating device 100, comprising: pedestal 110, calibration element are please referred to
120 and adjust component 130.Calibration element 120 is arranged on pedestal 110, and calibration element 120 is equipped with the first calibration face 121.First mark
Determine motion track of the face 121 for laser scanner 200 to be arranged in parallel.The setting of pedestal 110 is on adjusting component 130.It adjusts
Component 130 is used to adjust the plan-position in the first calibration face 121.
Calibration element 120 is arranged on pedestal 110 above-mentioned caliberating device 100, then pedestal 110 is arranged in adjusting group
It on part 130, is adjusted on component 130 so that calibration element 120 is stablized to be supported on, is conducive to the reliability for improving calibration result；Then,
By being adjusted to adjusting component 130, the plan-position in the first calibration face 121 on calibration element 120 is enabled to be adjusted to institute
Position is needed, so that laser scanner 200 carries out accurate and effective measurement to the first calibration face 121.Due to first calibration face 121 with
The motion track of laser scanner 200 is arranged in parallel, and therefore, laser scanner 200 is demarcated with first always in moving process
Face 121 keeps constant spacing, so as to the accurate and effective measuring accuracy for judging laser scanner 200.Wherein, plane position
Set the tilt angle including level and plane.Specifically in the present embodiment, the present embodiment first demarcates face 121 calibrated
Cheng Zhong keeps horizontality under the action of adjusting component 130；Meanwhile first calibration face 121 be in laser scanner 200
In scanning range.In addition, the specific scaling method of the present embodiment are as follows: along the length direction in the first calibration face 121, mobile laser
Scanner 200, so that laser scanner 200 measures height of the multiple groups with pedestal 110 for benchmark face on the first calibration face 121
Value, and the h that averages is carried out with the height value that pedestal 110 is benchmark face to multiple groups1,avg.Obtain height average and then secondary shifting
Dynamic laser scanner 200, so that laser scanner 200 on the basis of measuring multiple groups by pedestal 110 on the first calibration face 121 again
The test height value h in facei,1, by resulting test height value hi,1Subtract average value h1,avgObtain the height in the first calibration face 121
Error di,1, pass through the height error d in the first calibration of analysis face 121i,1, allow the operator to effectively and be accurately judged to swash
The measuring accuracy of photoscanner 200, so as to quickly determine number during testing road surface Micro texture of laser scanner 200
According to accuracy.Wherein, the length direction in the first calibration face 121 in order to facilitate understanding, by taking Fig. 2 as an example, the first calibration face 121
Length direction is the S indicated in Fig. 20Direction.
Further, the second calibration face 122 is additionally provided on calibration element 120.Second calibration face 122 and the first calibration face 121
It is set side by side；The distance from bottom L of second calibration 122 relative Calibration part 120 of face2Less than the first calibration 121 relative Calibration part 120 of face
Distance from bottom L1.Or second calibration 122 relative Calibration part 120 of face distance from bottom L2It is opposite greater than the first calibration face 121 to mark
Determine the distance from bottom L of part 1201.It follows that at least two kinds of different calibration faces of height on calibration element 120.In this way, respectively
Calibration test is carried out to the first calibration face 121 and the second calibration face 122, show that laser scanner 200 demarcates face in different height
On error amount, by the way that the measuring accuracy of laser scanner 200 can be accurately judged to these error amounts.Meanwhile passing through this
A little error amounts help to study influence relationship of the different height to laser scanning precision.Wherein, the bottom of calibration element 120 is mark
Determine the side contacted on part 120 with pedestal 110.
Further, Fig. 2 and Fig. 4 are please referred to, the second calibration face 122 is two or more.More than two second calibration
Face 122 is disposed in parallel on calibration element 120；The distance from bottom L of second calibration 122 relative Calibration part 120 of face2Along calibration element
120 width direction is gradually increased or is gradually reduced.It follows that at least provided with three kinds of different heights on calibration element 120
The accidental error in calibration process is reduced, is had in this way, being tested by the calibration face to these three above different heights in calibration face
Conducive to the stated accuracy for improving caliberating device 100.Meanwhile the bottom that the present embodiment demarcates 122 relative Calibration part 120 of face for second
Distance L2It is gradually changed along the width direction of calibration element 120, so that laser scanner 200 is during the calibration process, test value
In trend is gradually changed, greatly operator is facilitated to handle data, avoid because data corruption, it is irregular due to cause to handle
Error.Wherein, the width direction of calibration element 120 in order to facilitate understanding, by taking Fig. 2 as an example, the width direction of calibration element 120 is Fig. 2
The S of middle expression1Direction.
Specifically, the second calibration face 122 is three, and three the second calibration faces 122 are disposed in parallel on calibration element 120, the
The distance from bottom L of two calibration 122 relative Calibration parts 120 of face2Less than the distance from bottom of the first calibration 121 relative Calibration part 120 of face
L1, and the distance from bottom L of the second calibration 122 relative Calibration part 120 of face2It is gradually become smaller along the width direction of calibration element 120.By
This is it is found that calibration element 120 is in or approximate in level Four step structure to set the calibration there are four different height on calibration element 120
Face, specific scaling method are as follows: along the length direction in one of calibration face, mobile laser scanner 200 or calibration element
120, every mobile third presets spacing, and laser scanner 200 is measured the second calibration face 122, obtains the second calibration face 122
It is the height average h of seat surface with pedestal 110m,avg, wherein m is natural number；After obtaining height average, mobile laser is swept
Instrument 200 or calibration element 120, the default spacing of every movement the 4th are retouched, laser scanner 200 is measured the second calibration face 122,
And exporting with pedestal 110 is the test height value h of seat surfacej,m, wherein j is natural number；By test height value hj,mWith the second mark
Determine the height average h in face 122m,avgSubtract each other, obtains the height error d in the second calibration face 122j,m；To the first calibration face 121
Height error di,1With the height error d in the second calibration face 122j,mProcessing, and carry out error analysis.Specifically in the present embodiment,
Second default spacing, third preset spacing and the 4th default spacing is 0.05mm, the single-channel scanning width of laser scanner 200
For 40mm.Calibration element 120 is stiff rectangular plate, the length L of calibration element 1200With width W0It is 120mm；The height of calibration element 120
Spend h0For 20mm.The difference in height Δ H of every level-one is 5mm.Wherein, single-channel scanning width refers to 200 single pass of laser scanner
Sweep length in the process.
In one embodiment, adjusting component 130 includes supporting element 131 and the first leveling part 132.Supporting element 131 is arranged
On the first leveling part 132, and height of the supporting element 131 on the first leveling part 132 is adjustable.Pedestal 110 is arranged in supporting element
On 131.It follows that by supporting element 131, so that pedestal 110 obtains stablizing support.Since supporting element 131 is arranged first
It levels on part 132, and height of the supporting element 131 on the first leveling part 132 is adjustable, therefore, by adjusting supporting element 131 the
Height on one leveling part 132, so that the first calibration face 121 is in required position.Wherein, when supporting element 131 and first level
When part 132 is one, the side of pedestal 110 is then arranged in supporting element 131, levels part first by adjusting supporting element 131
Height on 132, so that 110 side of pedestal rotates, so that the first calibration face 121 reaches on required position；Work as branch
When support member 131 and the first leveling part 132 are two or more, supporting element 131 is arranged in a one-to-one correspondence with the first leveling part 132, this
When, the height of more than two supporting elements 131 is adjusted respectively, so that at position needed for the first quick arrival in calibration face 121, to make
The adjusting for obtaining the first calibration face 121 becomes more flexible, convenient.Specifically in the present embodiment, supporting element 131 and the first leveling part
132 threadedly connect, by rotation the first leveling part 132, so that height of the supporting element 131 on the first leveling part 132
Degree is effectively adjusted.Wherein, the first leveling part 132 can be leveling bolt or levelling bolt.
Further, supporting element 131 and the first leveling part 132 are three, supporting element 131 and the first leveling part 132 1
One is correspondingly arranged.Pedestal 110 is arranged on three supporting elements 131.In this way, facilitating calibration element 120 on roughness pavement
Fixation is put, while can quickly and conveniently be adjusted in the first calibration face 121 to horizontality.
In one embodiment, Fig. 1 and Fig. 3 are please referred to, caliberating device 100 further includes level indicator 140.Level instruction
Device 140 is arranged on pedestal 110.In this way, by level indicator 140 so that the first calibration face 121 fast and accurately adjust to
Horizontality.Wherein, level indicator 140 includes air level, formula level meter, laser leveler or other equipment.
In one embodiment, Fig. 1, Fig. 2 and Fig. 4, a kind of calibration system, including guide rail 300, laser scanner are please referred to
200 and any of the above embodiment in caliberating device 100.Laser scanner 200 is slidably matched with guide rail 300.Guide rail 300 along
The length direction in the first calibration face 121 is extended.
Calibration element 120 is arranged on pedestal 110 for above-mentioned calibration system, the caliberating device 100 more than, then will
The setting of pedestal 110 is adjusted on component 130 on adjusting component 130 so that calibration element 120 is stablized to be supported on, and is conducive to improve mark
Determine the reliability of result；Then, by the way that adjusting component 130 is adjusted, so that the first calibration face 121 on calibration element 120
Plan-position can be adjusted to required position, so that laser scanner 200 carries out accurate and effective measurement to the first calibration face 121.
Since guide rail 300 is extended along the length direction in the first calibration face 121, laser scanner 200 is in moving process
In, spacing is kept constant with the first calibration face 121 always, so as to the accurate and effective test for judging laser scanner 200
Precision.Meanwhile by guide rail 300, not only guarantee that laser scanner 200 can be moved along the length direction in the first calibration face 121
It is dynamic, but also guarantee that laser scanner 200 is more steady in moving process, it avoids shaking up and down and data being caused seriously to be lost
Very.Wherein, in order to facilitate understanding first calibration face 121 length direction, by taking Fig. 2 as an example, first calibration face 121 length direction
For S in Fig. 20The direction of expression.
Further, calibration system further includes bracket 400.Guide rail 300 is arranged on bracket 400.In this way, passing through bracket
400, so that laser scanner 200 obtains stablizing support, stablize movement convenient for laser scanner 200.
Further, calibration system further includes the second leveling part 500.The setting of bracket 400 levels on part 500 second,
And height of the bracket 400 on the second leveling part 500 is adjustable.In this way, through adjusting bracket 400 on the second leveling part 500
Highly, laser scanner 200 is enabled to scan to the first calibration face 121.Wherein, when bracket 400 and the second leveling part 500 are equal
When for two or more, bracket 400 is arranged in a one-to-one correspondence with the second leveling part 500, at this point, adjusting more than two brackets 400 respectively
Height so that laser scanner 200 quickly reach needed at position so that the adjusting of laser scanner 200 becomes more
It is flexible, convenient to add.Meanwhile the height of more than two brackets 400 is adjusted respectively, the tilt angle of guide rail 300 can be adjusted
Section, it is parallel with the first calibration face 121 so as to which motion track of the laser scanner 200 on guide rail 300 is effectively ensured.Specifically
In the present embodiment, bracket 400 is threadedly connect with the second leveling part 500, by rotation the second leveling part 500, is made
Height of the bracket 400 on the second leveling part 500 is obtained effectively to be adjusted.Wherein, the second leveling part 500 can for leveling bolt or
Person's levelling bolt.
In one embodiment, Fig. 1, Fig. 2, Fig. 4 and Fig. 5, a kind of scaling method are please referred to, comprising the following steps:
S10: along the length direction in the first calibration face 121, mobile laser scanner 200 or calibration element 120, every movement
First default spacing, laser scanner 200 are measured the first calibration face 121, obtain the first calibration face 121 with pedestal 110
For the height average h in benchmark face1,avg；
S20: after obtaining height average, mobile laser scanner 200 or calibration element 120, every movement second are preset
Spacing, laser scanner 200 are measured the first calibration face 121, and exporting with pedestal 110 is the test height value of seat surface
hi,1, wherein i is natural number；
S30: by test height value hi,1With the height average h in the first calibration face 1211,avgSubtract each other, obtains the first calibration face
121 height error di,1, and to the height error d in the first calibration face 121i,1Carry out error analysis.
Above-mentioned scaling method, along the length direction in the first calibration face 121, mobile laser scanner 200 or calibration
Part 120, so that laser scanner 200 measures height value of the multiple groups with pedestal 110 for benchmark face on calibration element 120, to multiple groups
The h that averages is carried out with the height value that pedestal 110 is benchmark face1,avg.Obtain height average and then secondary mobile laser scanner
200 or calibration element 120, so that laser scanner 200 measures the test height value that multiple groups take pedestal 110 as benchmark face again
hi,1, by resulting test height value hi,1Subtract average value h1,avgObtain the height error d in the first calibration face 121i,1, by dividing
The height error d in the first calibration of analysis face 121i,1, allow the operator to effectively and be accurately judged to laser scanner 200
Measuring accuracy, so as to quickly determine laser scanner 200 in the accuracy of test road surface Micro texture data.Specifically at this
In embodiment, to the height error d in the first calibration face 121i,1Carry out error analysis method are as follows: by the error in the first calibration face 121
Value is used as Y axis coordinate, using position data of the corresponding test point on the first calibration face 121 as X axis coordinate, forms discrete point
Collection, counts number ratio of the discrete point set within the scope of ± 0.01mm if more than 95% and then judges laser scanner 200
Measuring accuracy is qualification, is otherwise unqualified.Meanwhile first default spacing and the second default spacing be 0.05mm.
Optionally, the h that averages is carried out with the height value that pedestal 110 is benchmark face to multiple groups1,avgMode be arithmetic average
Method, geometric average method, harmonic average method, weighted mean method or other averaging methods.
Further, Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Fig. 6, step are please referred to further include: S40: along one of them the second mark
Determine the length direction in face 122, mobile laser scanner 200 or calibration element 120, every mobile third preset spacing, laser scanning
Instrument 200 is measured the second calibration face 122, obtains height average of the second calibration face 122 with pedestal 110 for seat surface
hm,avg, wherein m is natural number, and m >=2, the bottom level of the second calibration 122 relative Calibration part 120 of face demarcate face less than first
The bottom level of 121 relative Calibration parts 120；S50: after obtaining height average, mobile laser scanner 200 or calibration element
120, the default spacing of every movement the 4th, laser scanner 200 is measured the second calibration face 122, and exports with pedestal 110 and be
The test height value h of seat surfacej,m, wherein j is natural number；S60: by test height value hj,mWith the height in the second calibration face 122
Average value hm,avgSubtract each other, obtains the height error d in the second calibration face 122j,m；S70: to the height error in the first calibration face 121
di,1With the height error d in the second calibration face 122j,mProcessing, and carry out error analysis.It follows that on calibration element 120 at least
Two kinds of different calibration faces of height.In this way, carrying out calibration test to the first calibration face 121 and the second calibration face 122 respectively, obtain
Error amount of the laser scanner 200 on different height calibration face, by that can be accurately judged to laser and sweep to these error amounts
Retouch the measuring accuracy of instrument 200.Meanwhile by these error amounts, help to study influence of the different height to laser scanning precision.
Specifically in the present embodiment, to the height error d in the first calibration face 121i,1With the height error d in the second calibration face 122j,mProcessing
Method is by the height error d in the first calibration face 121i,1With the height error d in the second calibration face 122j,mIt carries out asking error average
Value di, it is specifically shown in following formula (1):
Count average error diNumber ratio within the scope of ± 0.01mm.Wherein, it second marks in order to facilitate understanding
The length direction for determining face 122, by taking Fig. 2 as an example, the second calibration face 122 is S in Fig. 22The direction of expression.Meanwhile between third is default
Away from being 0.05mm with the 4th default spacing.
Further, when the second calibration face 122 is three, and the bottom of the second calibration 122 relative Calibration part 120 of face is high
Degree is gradually reduced along the width direction of calibration element 120.At this point, obtaining height of the second calibration face 122 with pedestal 110 for seat surface
Spend average value hm,avgRespectively h2,avg、h3,avgAnd h4,avg；The height error d in the calibration of gained second face 122j,mRespectively dj,2、
dj,3And dj,4.By the height error d in the first calibration face 121i,1With the height error d in the second calibration face 122j,2、dj,3And dj,4Into
Row seeks average error di, it is specifically shown in following formula (2):
Finally, by errors average value diDraw discrete point set coordinate.Fig. 7 is specifically referred to, abscissa is to survey in Fig. 7
Pilot is along the position data of the length direction of calibration element 120 on calibration element 120, and ordinate is the error of test point in Fig. 7
Average value di.As can be known from Fig. 7, average error is more than that 95% number ratio concentrates within the scope of ± 0.01mm.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of caliberating device characterized by comprising
Pedestal；
Calibration element, on the base, the calibration element is equipped with the first calibration face, first calibration for the calibration element setting
Face is used to be arranged in parallel with the motion track of laser scanner；And
Component is adjusted, the pedestal is arranged on the adjusting component, and the adjusting component is for adjusting the first calibration face
Plan-position.
2. caliberating device according to claim 1, which is characterized in that be additionally provided with the second calibration face, institute on the calibration element
The second calibration face is stated to be set side by side with the first calibration face；The distance from bottom L of the second calibration relatively described calibration element in face2
Less than the distance from bottom L of the first calibration relatively described calibration element in face1；Or the second calibration relatively described calibration element in face
Distance from bottom L2Greater than the distance from bottom L of the first calibration relatively described calibration element in face1。
3. caliberating device according to claim 2, which is characterized in that it is described second calibration face be two or more, two with
On the second calibration face be disposed in parallel on the calibration element；It is described second calibration the relatively described calibration element in face bottom away from
From L2It is gradually increased or is gradually reduced along the width direction of the calibration element.
4. caliberating device according to claim 1, which is characterized in that the adjusting component includes supporting element and the first leveling
Part, the supporting element setting is on the first leveling part, and height of the supporting element on the first leveling part is adjustable,
The pedestal is arranged on the supporting element.
5. caliberating device according to claim 4, which is characterized in that the supporting element is two with the first leveling part
More than a, the supporting element is arranged in a one-to-one correspondence with the first leveling part, and the pedestal is arranged in more than two branch
In support member.
6. caliberating device described in -5 any one according to claim 1, which is characterized in that it further include level indicator, it is described
Level indicator is arranged on the base.
7. a kind of calibration system, which is characterized in that including guide rail, laser scanner and as claimed in any one of claims 1 to 6
Caliberating device, the laser scanner are slidably matched with the guide rail, the length side that the guide rail demarcates face along described first
To be extended.
8. calibration system according to claim 7, which is characterized in that further include bracket, the guide rail is arranged in the branch
On frame.
9. calibration system according to claim 8, which is characterized in that further include the second leveling part, the bracket setting exists
On the second leveling part, and height of the bracket on the second leveling part is adjustable.
10. calibration system according to claim 8, which is characterized in that the bracket is two or more, the guide rail setting
On more than two brackets.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109990708A (en) * | 2019-04-04 | 2019-07-09 | 广州肖宁道路工程技术研究事务所有限公司 | Caliberating device, calibration system and scaling method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109990708A (en) * | 2019-04-04 | 2019-07-09 | 广州肖宁道路工程技术研究事务所有限公司 | Caliberating device, calibration system and scaling method |
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