CN107167075A - Three-dimensional laser reflective membrane target - Google Patents
Three-dimensional laser reflective membrane target Download PDFInfo
- Publication number
- CN107167075A CN107167075A CN201710402246.5A CN201710402246A CN107167075A CN 107167075 A CN107167075 A CN 107167075A CN 201710402246 A CN201710402246 A CN 201710402246A CN 107167075 A CN107167075 A CN 107167075A
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- China
- Prior art keywords
- reflective membrane
- isosceles triangle
- dimensional laser
- reflective
- target
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- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The present invention relates to three-dimensional laser target field, disclose three-dimensional laser reflective membrane target, including bottom plate and isosceles triangle reflective membrane, the front end face of bottom plate has the square region having a rectangular shape, square region is made up of four isosceles triangle planes, the summit of four isosceles triangle planes collects in the center of square region, and the rear end face depression of the centrally directed bottom plate of square region；Covered with isosceles triangle reflective membrane on each isosceles triangle, the appearance and size of isosceles triangle reflective membrane is consistent with the appearance and size of isosceles triangle, and the summit of four isosceles triangle reflective membranes converges in the center of square region, forms reflective marker center.The laser point cloud received according to bottom plate, the laser point cloud of plane where fitting wherein three pieces reflective membranes, you can extract the central point of reflective marker.
Description
Technical field
The present invention relates to field three-dimensional laser target, more particularly to three-dimensional laser reflective membrane target.
Background technology
Three-dimensional laser target, it is readily identified in a cloud to extract with higher reflectivity, available for a cloud coordinate school
It is the important aid of 3 D laser scanning in terms of accurate, camera registration and point cloud accuracy checking.
At present, conventional three-dimensional laser target has circular reflector plate target and spherical target, using its central point as reference,
The use of the key of target is how accurately to extract its central point.If carrying out fine scanning, target point cloud not directed specifically to target
Model is commonly present the problems such as shape is imperfect, point cloud spacing is excessive.
In the prior art, wasted time and energy for the fine scanning of target, and it is seldom feasible.Therefore, for circle reflection
The imperfect and sparse point cloud model of piece target, spherical target, either artificial pickup is difficult to standard still by the Fitting Calculation
Really extract Target Center point.
The content of the invention
It is an object of the invention to provide three-dimensional laser reflective membrane target, it is intended to solves target in the prior art and is difficult to accurately
The problem of extracting Target Center point.
The present invention is achieved in that three-dimensional laser reflective membrane target, including bottom plate and isosceles triangle reflective membrane, institute
Stating the front end face of bottom plate has the square region having a rectangular shape, and the square region is made up of four isosceles triangle planes,
The summit of four isosceles triangle planes collects in the center of the square region, and the square region is centrally directed
The rear end face depression of bottom plate；Covered with isosceles triangle reflective membrane on each described isosceles triangle, the isosceles triangle is anti-
The appearance and size of light film is consistent with the appearance and size of the isosceles triangle, and the summit of four isosceles triangle reflective membranes
The center of the square region is converged in, reflective marker center is formed.
Further, the bottom plate has a rectangular shape, and the front end face of the bottom plate forms the square region.
Further, the reflective membrane is bead type reflective membrane.
Further, the lower end of the bottom plate is provided with connector.
Further, the three-dimensional laser reflective membrane target includes support, and the upper end of the support connects with the connector
Connect.
Further, the support is threadedly coupled with the connector.
Further, the support has three swing arms, and connection is collected in the upper end of three swing arms.
Further, four reflective membranes are integrated shape structure.
Further, four reflective membranes are independently arranged.
The present invention is achieved in that three-dimensional laser reflective membrane target, including bottom plate and isosceles triangle reflective membrane, institute
Stating the front end face of bottom plate has the square region having a rectangular shape, and the square region is made up of four isosceles triangle planes,
The summit of four isosceles triangle planes collects in the center of the square region, and the square region is centrally directed
The rear end face depression of bottom plate；Covered with isosceles triangle reflective membrane on each described isosceles triangle, the isosceles triangle is anti-
The appearance and size of light film is consistent with the appearance and size of the isosceles triangle, and the summit of four isosceles triangle reflective membranes
The center of the square region is converged in, reflective marker center is formed.
Compared with prior art, the three-dimensional laser reflective membrane target that the present invention is provided, square region is by four isoceles triangles
Shape plane is constituted, and four Different Planes that four isosceles triangle reflective membrane formation intersects at a point, this intersection point is located at bottom plate
Center, the laser point cloud received according to bottom plate fits plane where wherein three pieces reflective membranes, and by changing bottom plate side
Long specification, it is ensured that at least three pieces high reflecting films of triangle can receive laser spots, and every piece of triangle is senior reflective
Film receives the laser spots of more than three, you can extract the central point of reflective marker.
Brief description of the drawings
Fig. 1 is three-dimensional laser reflective membrane target schematic perspective view provided in an embodiment of the present invention；
Fig. 2 is the schematic front view of three-dimensional laser reflective membrane target connecting bracket provided in an embodiment of the present invention；
Fig. 3 is three-dimensional laser reflective membrane target left view schematic diagram provided in an embodiment of the present invention；
Fig. 4 is three-dimensional laser reflective membrane target schematic front view provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The same or analogous part of same or analogous label correspondence in the accompanying drawing of the present embodiment；In description of the invention
In, it is to be understood that if having the orientation or position relationship of the instructions such as term " on ", " under ", "left", "right" for based on accompanying drawing institute
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than indicate or imply signified dress
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore described in accompanying drawing position relationship use
Language being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent, for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term is understood as the case may be.
The realization of the present invention is described in detail below in conjunction with specific embodiment.
Shown in reference picture 1-4, preferred embodiment is provided for the present invention.
The target of three-dimensional laser reflective membrane 1, with higher reflectivity, readily identified in a cloud and extraction, available for point
It is the important aid of 3 D laser scanning in terms of cloud calibrating coordinates, camera registration and point cloud accuracy checking.
The target of three-dimensional laser reflective membrane 1, including bottom plate 3 and isosceles triangle reflective membrane 1, the front end face of bottom plate 3 have
The square region 2 having a rectangular shape, square region 2 can be used for receiving laser point cloud, and square region 2 is put down by four isosceles triangles
Face is constituted, and forms four Different Planes, and the summit of four isosceles triangle planes collects in the center of square region 2, and square
The rear end face depression of the centrally directed bottom plate 3 in region 2；Covered with isosceles triangle reflective membrane 1, isosceles on each isosceles triangle
The appearance and size of triangle reflective membrane 1 is consistent with the appearance and size of isosceles triangle, so makes structure compacter, isoceles triangle
The base of shape reflective membrane 1 is long to cause unnecessary waste, while influenceing other isosceles triangle reflective membranes 1 to receive laser spots
Cloud, the too short missing that can cause to receive laser point cloud in the base of isosceles triangle reflective membrane 1, influence isosceles triangle reflective membrane 1
Identification and extraction.
Furthermore, the summit of four isosceles triangle reflective membranes 1 converges in the center of square region 2, is formed in reflective marker
The heart, based on this, the laser spots that four Different Planes that four pieces of formation of isosceles triangle reflective membrane 1 intersect at a point are received
Can be more uniform, pass through the laser point cloud received, you can try to achieve the central point of reflective marker.
In specific works, the laser point cloud received according to bottom plate 3 fits the wherein three pieces place planes of reflective membrane 1,
By the specification for changing the length of side of bottom plate 3, it is ensured that at least three pieces high reflecting films 1 of triangle can receive laser spots, and often
The high reflecting film 1 of block triangle receives the laser spots of more than three, you can the central point of reflective marker is tried to achieve, with its central point
For reference, then extraction can be recognized in a cloud, so as to aid in three laser scannings to be operated.
Single station 3 D laser scanning, in the case where angular resolution is selected, point cloud interval and ranging are proportional.Such as angle
It is about that interval is about at interval about 5cm, 25m at 10cm, 50m away from point cloud interval at survey station 100m when resolution ratio is 0.06 °
2.5cm。
In the present embodiment, bottom plate 3 has a rectangular shape, and the front end face formation square region 2 of bottom plate 3, therefore, makes bottom plate
3 length of sides are respectively the number of reflections mark of 10cm, 20cm, 40cm equal-specification, are not more than in angular resolution under conditions of 0.06 °,
10cm reflective markers are applied to the scope that ranging is less than 25m, and 20cm reflective markers are applied to area of the ranging between 30~50m
Domain, 40cm reflective markers are applied to region of the ranging between 50~100m.
Before 3 D laser scanning, according to ranging and angular resolution, diverse location selects the reflective marker of dimension, to protect
The laser spots of more than 3 can be received by demonstrate,proving at least 3 pieces reflective membranes 1 of each reflective marker.
In order that reflective membrane 1 has more reflectivity, reflective membrane 1 is set to bead type reflective membrane, the benefit so set
It is that bead type reflective membrane 1 has durability, is favorably improved the usage cycles of reflective membrane 1, improves its service life, also,
Relative to circular reflector plate and the target such as spherical, the target of bead type reflective membrane 1 has more emissivity, is easier to know in a cloud
Indescribably take, so as to effectively prevent imperfect and sparse point cloud model.
In the present embodiment, the lower end of bottom plate 3 is provided with connector 4, for the connection of three-dimensional laser target and support 5, connects
Joint 4 is universal joint, can be arranged on centering rod, can also be arranged on the tripod with pedestal, such setting reaches
Effect be that in varied situations, various ways are realized in the installation of three-dimensional laser target.
In order that the work of three-dimensional laser target is more simple and efficient, the target of three-dimensional laser reflective membrane 1 includes support 5, branch
The upper end of frame 5 is connected with connector 4, the lower end of support 5 contact ground, for fixing three-dimensional laser target, while avoiding three-dimensional sharp
Cursor target contacts ground, and three-dimensional laser target is played a protective role.
In order that support 5 be connected with three-dimensional laser target it is more simple and efficient, support 5 is threadedly coupled with connector 4, no
Need to increase other parts, support 5 is directly threadedly coupled with connector 4, and such connected mode is simple and efficient, and connect
More consolidate.
In the present embodiment, support 5 has three swing arms, and connection is collected in the upper end of three swing arms, the effect so reached
Fruit is that three swing arms are in angular distribution, and the stability of angular distribution structural reinforcing supports 5 is favorably improved support 5 and withstood forces,
So as to protect whole three-dimensional laser target.
The installation of reflective membrane 1 for convenience, four reflective membranes 1 are integrated shape structure, and integrated reflective membrane 1 is directly overlayed
The square region 2 of four isosceles triangle formation, the benefit so set is that reflective membrane 1 is quick and easy for installation, time saving and energy saving,
And total is more compact..
In the present embodiment, the independent arrangement of reflective membrane 1, i.e., each isosceles for being independently covered in square region 2 of four reflective membranes 1
On triangle, the benefit of the effect so reached is, if single reflective membrane 1 is damaged, single can change, it is to avoid causing need not
The waste wanted.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Any modifications, equivalent substitutions and improvements made within principle etc., should be included in the scope of the protection.
Claims (9)
1. three-dimensional laser reflective membrane target, it is characterised in that including bottom plate and isosceles triangle reflective membrane, before the bottom plate
End face has the square region that has a rectangular shape, and the square region is made up of four isosceles triangle planes, and four described etc.
The summit of lumbar triangle shape plane collects in the center of the square region, and the rear end of the centrally directed bottom plate of the square region
Face is recessed；Covered with isosceles triangle reflective membrane on each described isosceles triangle, the profile of the isosceles triangle reflective membrane
Size is consistent with the appearance and size of the isosceles triangle, and four isosceles triangle reflective membranes summit converge in it is described
The center of square region, forms reflective marker center.
2. three-dimensional laser reflective membrane target as claimed in claim 1, it is characterised in that the bottom plate has a rectangular shape, and institute
The front end face for stating bottom plate forms the square region.
3. three-dimensional laser reflective membrane target as claimed in claim 1, it is characterised in that the reflective membrane is that bead type is reflective
Film.
4. three-dimensional laser reflective membrane target as claimed in claim 1, it is characterised in that the lower end of the bottom plate is provided with connection
Head.
5. the three-dimensional laser reflective membrane target as described in claim 1 or 4, it is characterised in that the three-dimensional laser reflective membrane mark
Target includes support, and the upper end of the support is connected with the connector.
6. the three-dimensional laser reflective membrane target as described in claim 4 or 5, it is characterised in that the support and the connector
Threaded connection.
7. three-dimensional laser reflective membrane target as claimed in claim 5, it is characterised in that the support has three swing arms,
Collect connection in the upper end of three swing arms.
8. the three-dimensional laser reflective membrane target as described in claim 1-3 any one, it is characterised in that four reflective membranes
It is integrated shape structure.
9. the three-dimensional laser reflective membrane target as described in claim 1-3 any one, it is characterised in that four reflective membranes
Independent arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710402246.5A CN107167075B (en) | 2017-06-01 | 2017-06-01 | Three-dimensional laser reflective film target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710402246.5A CN107167075B (en) | 2017-06-01 | 2017-06-01 | Three-dimensional laser reflective film target |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107167075A true CN107167075A (en) | 2017-09-15 |
| CN107167075B CN107167075B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710402246.5A Active CN107167075B (en) | 2017-06-01 | 2017-06-01 | Three-dimensional laser reflective film target |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203231732U (en) * | 2013-05-17 | 2013-10-09 | 重庆市勘测院 | Three-dimensional laser scanning reflection target |
| CN104237868A (en) * | 2014-08-25 | 2014-12-24 | 北京建筑大学 | Multifunctional practical laser radar scanning target |
| CN105547269A (en) * | 2015-10-26 | 2016-05-04 | 北京建筑大学 | Multifunctional three-dimensional laser scanning target |
| CN106248054A (en) * | 2016-08-31 | 2016-12-21 | 梁晓东 | The parts transmitted for three-dimensional laser point cloud and coordinate and using method thereof |
| CN207074045U (en) * | 2017-06-01 | 2018-03-06 | 中水珠江规划勘测设计有限公司 | Three-dimensional laser reflective membrane target |
-
2017
- 2017-06-01 CN CN201710402246.5A patent/CN107167075B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203231732U (en) * | 2013-05-17 | 2013-10-09 | 重庆市勘测院 | Three-dimensional laser scanning reflection target |
| CN104237868A (en) * | 2014-08-25 | 2014-12-24 | 北京建筑大学 | Multifunctional practical laser radar scanning target |
| CN105547269A (en) * | 2015-10-26 | 2016-05-04 | 北京建筑大学 | Multifunctional three-dimensional laser scanning target |
| CN106248054A (en) * | 2016-08-31 | 2016-12-21 | 梁晓东 | The parts transmitted for three-dimensional laser point cloud and coordinate and using method thereof |
| CN207074045U (en) * | 2017-06-01 | 2018-03-06 | 中水珠江规划勘测设计有限公司 | Three-dimensional laser reflective membrane target |
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| Publication number | Publication date |
|---|---|
| CN107167075B (en) | 2023-06-13 |
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| CB03 | Change of inventor or designer information |
Inventor after: Shen Qinghua Inventor after: Deng Shenbao Inventor after: Lu Zhiwen Inventor before: Shen Qinghua Inventor before: Deng Shenbao |
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