CN203672321U - Vision measurement system of large flexible capsule size - Google Patents
Vision measurement system of large flexible capsule size Download PDFInfo
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- CN203672321U CN203672321U CN201420048738.0U CN201420048738U CN203672321U CN 203672321 U CN203672321 U CN 203672321U CN 201420048738 U CN201420048738 U CN 201420048738U CN 203672321 U CN203672321 U CN 203672321U
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- camera
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- range finder
- scale flexible
- measurement system
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- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 239000002775 capsule Substances 0.000 title abstract 7
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 241000931526 Acer campestre Species 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000011218 segmentation Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model discloses a vision measurement system of a large flexible capsule size. The vision measurement system comprises a plurality of camera installing supports that are uniformly distributed around a zone where the large flexible capsule is located and a plurality of tripods that are uniformly distributed around the zone where the large flexible capsule is located. A plurality of camera holders are installed at the camera installing supports; and cameras are installed at the camera holders. Laser range finder holders are installed at the tripods; and laser range finders are installed at the laser range finder holders. The camera holders, the cameras, the laser range finder holders, and the laser range finders are connected to a maser control computer. A calibration dot plate array that is formed by a plurality of calibration dot plates for calibrating parameters of the cameras and the laser range finders is arranged in the zone where the large flexible capsule is located; and a plurality of vision marking points are fixed at the surface of the large flexible capsule is located at. The provided vision measurement system has the advantages of simple structure and low cost; and a measurement basis is provided for accurate measurement of the large flexible capsule size.
Description
Technical field
The utility model relates to large-scale metrology field, space, particularly a kind of large-scale flexible utricule volume vision measurement system.
Background technology
Dirigible hull is special-shaped flexible utricule, in process of manufacture because being subject to the impact of material behavior and processing technology, make to have certain deviation between dirigible hull after moulding and design, if dirigible utricule bulk and design load differ larger, will produce material impact to the balance quality of aerostatics, aerodynamic characteristic and flight quality.Utricule bulk is directly related with utricule volume again, and the volume of dirigible has determined its useful load.Therefore, be necessary its utricule bulk and volume to measure before testing in dirigible general assembly, total debugging.
Dirigible bulky, the irregular existence abnormity of profile, be difficult to test indoor, and in the experimental enviroment of outfield due to the impact of wind field, air-flow, hull can not keep stationary state, is difficult to find suitable witness mark, therefore, be difficult to by existing routine techniques and stable large volume measuring method, its flexible bags body space size and volume be measured, also there is no the measuring system of large-scale flexible utricule volume at present.
Summary of the invention
Technical problem to be solved in the utility model is for prior art deficiency, to provide a kind of large-scale flexible utricule volume vision measurement system, for Measurement accuracy large-scale flexible utricule volume provides Fundamentals of Measurement.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of large-scale flexible utricule volume vision measurement system, comprise multiple large-scale flexible utricule region camera mounting bracket and multiple large-scale flexible utricule region tripods around that are evenly distributed on around that are evenly distributed on, multiple camera pan-tilts are installed on described camera mounting bracket, on described camera pan-tilt, video camera are installed; Laser range finder The Cloud Terrace is installed on described tripod, on described laser range finder The Cloud Terrace, laser range finder is installed; Described camera pan-tilt, video camera, laser range finder The Cloud Terrace, laser range finder all access main control computer; The calibration point plate array of multiple compositions of the calibration point plate for calibration camera and laser ranging instrument parameter is arranged in large-scale flexible utricule region; Multiple visual indicia points are fixed on large-scale flexible utricule surface.
Described camera mounting bracket number is 3～5.
6～10 camera pan-tilts are installed on described each camera mounting bracket.
Described calibration point plate is white circular dish type gauge point plate, and described white circular dish type gauge point plate center is provided with dark circles dish type gauge point, and described calibration point board diameter is 30～50cm, and described dark circles dish type gauge point diameter is 5～10cm.
Compared with prior art, the beneficial effect that the utility model has is: the utility model is simple in structure, with low cost, for Measurement accuracy large-scale flexible utricule volume provides Fundamentals of Measurement.
Brief description of the drawings
Fig. 1 is the utility model one embodiment vision measurement system structural representation;
Fig. 2 is the utility model one embodiment support and video camera scheme of installation;
Fig. 3 is the utility model one embodiment tripod and laser range finder scheme of installation;
Fig. 4 is the utility model one embodiment calibration point plate schematic diagram.
Embodiment
As shown in Figure 1-Figure 3, the utility model one embodiment comprises multiple large-scale flexible utricule region camera mounting bracket 1 and multiple aerostatics utricule region tripods 2 around that are evenly distributed on around that are evenly distributed on, multiple camera pan-tilts 6 are installed on described camera mounting bracket 1, on described camera pan-tilt 6, video camera 5 are installed; On described tripod 2, laser range finder The Cloud Terrace 8 is installed, on described laser range finder The Cloud Terrace 8, laser range finder 7 is installed; Described camera pan-tilt 6, video camera 5, laser range finder The Cloud Terrace 8, laser range finder 7 all access main control computer 4; Multiple calibration point plate arrays that form for the calibration point plate 3 of calibration camera and laser ranging instrument parameter are arranged in large-scale flexible utricule region.
In the present embodiment, described camera mounting bracket number is 3～5; , 6～10 camera pan-tilts are installed on described each camera mounting bracket.
In the present embodiment, as shown in Figure 4, described calibration point plate is white circular dish type gauge point plate, and described white circular dish type gauge point plate center is provided with dark circles dish type gauge point, described calibration point board diameter is 30～50cm, and described dark circles dish type gauge point diameter is 5～10cm.
In the present embodiment, camera pan-tilt and laser range finder The Cloud Terrace all adopt the three-dimensional scientific and technological 810 type turntables in Qingdao.
The use procedure of the utility model device is as follows:
In measure field (large-scale flexible utricule put area and peripheral region thereof, need ensure can measure large-scale flexible utricule at this region video camera and laser range finder) set up camera mounting bracket, install camera pan-tilt and video camera, camera pan-tilt and video camera are adjusted into suitable attitude, arrange laser range finder, its putting position should be as far as possible in the effective range periphery of carrying out vision system, and between any two all clear block, determine the world coordinates of laser range finder and video camera, lay calibration point plate at the diverse location place of measuring (being in large-scale flexible utricule put area) in place, determine the world coordinates of calibration point plate, video camera is taken calibration point plate array, and the uncalibrated image of many groups calibration point plate array of utilization acquisition, according to standard camera scaling method, obtain the parameter of each video camera, large-scale flexible utricule is placed in measure field, before the inflation of large-scale flexible utricule, paste visual indicia point on utricule surface, after utricule inflation, utricule picture is taken in segmentation, require in two adjacent shooting segmentations, all at least to have and be no less than 3 identical gauge points and appear among captured image simultaneously, preferably can there be 5 ~ 10 same tag points that simultaneously appear in adjacent two segmentations, reconstruct the three-dimensional world coordinate of each gauge point in each segmentation, using some segmentations as large-scale flexible utricule coordinate system, by coordinate transform, obtain the large-scale flexible utricule coordinate of all gauge points, the three-dimensional model on reconstruct large-scale flexible utricule surface, finally utilize three-dimensional model to calculate large-scale flexible utricule volume.
Claims (4)
1. a large-scale flexible utricule volume vision measurement system, it is characterized in that, comprise multiple large-scale flexible utricule region camera mounting bracket and multiple large-scale flexible utricule region tripods around that are evenly distributed on around that are evenly distributed on, multiple camera pan-tilts are installed on described camera mounting bracket, on described camera pan-tilt, video camera are installed; Laser range finder The Cloud Terrace is installed on described tripod, on described laser range finder The Cloud Terrace, laser range finder is installed; Described camera pan-tilt, video camera, laser range finder The Cloud Terrace, laser range finder all access main control computer; The calibration point plate array of multiple compositions of the calibration point plate for calibration camera and laser ranging instrument parameter is arranged in large-scale flexible utricule region; Multiple visual indicia points are fixed on large-scale flexible utricule surface.
2. large-scale flexible utricule volume vision measurement system according to claim 1, is characterized in that, described camera mounting bracket number is 3～5.
3. large-scale flexible utricule volume vision measurement system according to claim 1 and 2, is characterized in that, 6～10 camera pan-tilts are installed on described each camera mounting bracket.
4. large-scale flexible utricule volume vision measurement system according to claim 3, it is characterized in that, described calibration point plate is white circular dish type gauge point plate, described white circular dish type gauge point plate center is provided with dark circles dish type gauge point, described calibration point board diameter is 30～50cm, and described dark circles dish type gauge point diameter is 5～10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420048738.0U CN203672321U (en) | 2014-01-26 | 2014-01-26 | Vision measurement system of large flexible capsule size |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420048738.0U CN203672321U (en) | 2014-01-26 | 2014-01-26 | Vision measurement system of large flexible capsule size |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152975A (en) * | 2016-07-04 | 2016-11-23 | 四川九洲电器集团有限责任公司 | A kind of static state angle measurement calibration device |
| CN106225671A (en) * | 2016-08-03 | 2016-12-14 | 湖南航天机电设备与特种材料研究所 | A kind of field calibration method of large-scale aerostat capsule volume measurement apparatus |
-
2014
- 2014-01-26 CN CN201420048738.0U patent/CN203672321U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152975A (en) * | 2016-07-04 | 2016-11-23 | 四川九洲电器集团有限责任公司 | A kind of static state angle measurement calibration device |
| CN106152975B (en) * | 2016-07-04 | 2018-08-21 | 四川九洲电器集团有限责任公司 | A kind of static state angle measurement calibration device |
| CN106225671A (en) * | 2016-08-03 | 2016-12-14 | 湖南航天机电设备与特种材料研究所 | A kind of field calibration method of large-scale aerostat capsule volume measurement apparatus |
| CN106225671B (en) * | 2016-08-03 | 2019-01-18 | 湖南航天机电设备与特种材料研究所 | A kind of field calibration method of large size aerostat capsule volume measuring device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
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| CX01 | Expiry of patent term |