CN202066514U - Compound target for measuring large-scale coordinate - Google Patents
Compound target for measuring large-scale coordinate Download PDFInfo
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- CN202066514U CN202066514U CN2011200741636U CN201120074163U CN202066514U CN 202066514 U CN202066514 U CN 202066514U CN 2011200741636 U CN2011200741636 U CN 2011200741636U CN 201120074163 U CN201120074163 U CN 201120074163U CN 202066514 U CN202066514 U CN 202066514U
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Abstract
The utility model relates to a compound target for measuring a large-scale coordinate. The compound target is made of a square or round reflecting film. A round region is arranged in the center of the front face of reflecting cloth. A black cross wire is arranged in the round region. The crossing point of the black cross wire is coincided with the circle center of the round region. A black material covering layer is arranged on the surface of the region outside the round region. The compound target for measuring the large-scale coordinate has the beneficial effects that: under the condition that a target is not increased, the same target can be measured by a total station and photographic surveying at the same time, so that the measuring results have comparable data. In addition, the results measured by the total station are the three-dimensional coordinate, and a worker does not need to know the parameters of a photographic surveying camera in advance. The camera can be demarcated according to the three-dimensional coordinate of the total station in the field, so that the application of the photographic surveying is more diversified.
Description
Technical field
The utility model belongs to the photogrammetric technology field, is the compound target of a kind of large scale measurement of coordinates.This composition target is designated as 500 meters bore radio telescope panel detection and designs, and can use in the measurement of all kinds of large scale scenes.
Background technology
In the measurement of coordinates of large scale, photogrammetric and total station survey is two kinds of measurement means often using.Total powerstation and the photogrammetric reference mark that all is needs use target as measured target, but the target of two kinds of methods is inequality.The target center of total powerstation is the center of crosshair; And in the large scale measurement of coordinates, relatively more difficult when adopting Digital Image Processing to detect center of reticule, be difficult to the measuring accuracy that reaches higher; Photogrammetric used target generally all is circular, and the center of target is exactly the center of circle of circle, but any mark is not done at the center of target, so be difficult to obtain accurate target centre coordinate with total powerstation.
Because there is these difference in the photogrammetric and used target of total powerstation, so these two kinds of measurement means are difficult to same target is detected, like this, the measurement data of these two kinds of measurement means just can not compare.
Summary of the invention
In order to solve the problem that exists in the above-mentioned background technology, the utility model provides a kind of can use two kinds of measuring methods simultaneously simultaneously to the compound target of large scale measurement of coordinates of total powerstation and photogrammetric use under the situation of not introducing new target.So not only these two kinds of measuring methods are analyzed, more make measuring process variation more to make measuring method more changeable.
The technical solution that realizes above-mentioned purpose is as follows:
The compound target of a kind of large scale measurement of coordinates, described compound target is made by square or circular reflective membrane, the front center of reflective membrane is provided with a border circular areas, is provided with a black crosshair in the border circular areas, and the zone of border circular areas outside is provided with the black material overlayer.
The point of crossing of described black crosshair overlaps with the center of circle of border circular areas.
When using total station survey, the black crosshair on the employing target in the border circular areas is the target location; And use when photogrammetric, use digital image processing method to handle whole border circular areas, and, be the target location with the central coordinate of circle in the border circular areas on the target by calculating the home position in the border circular areas.
Compared with prior art, useful technique effect of the present utility model is: under the situation that does not increase target, can use total powerstation and photogrammetric two kinds of methods to measure simultaneously, make measurement result that the data that can compare arranged.Simultaneously, because the result of total station survey gained is a three-dimensional coordinate, the staff does not just need to know in advance the parameter of photogrammetric camera, just can demarcate camera according to the three-dimensional coordinate of total powerstation at the scene.This just makes photogrammetric application diversified more.
Description of drawings
Fig. 1 is a compound target front schematic view of the present utility model.
Among Fig. 1: reflective membrane 1, border circular areas 2, black crosshair 3.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, a kind of large scale measurement of coordinates is made by square or circular reflective membrane with compound target, the front center of reflective membrane is provided with a border circular areas 2, is provided with a black crosshair 3 in the border circular areas 2, and the region surface of border circular areas outside is provided with the black material overlayer.The point of crossing of black crosshair 3 overlaps with the center of circle of border circular areas 2.
Composition target labeling shown in Figure 1 behind the surface of measured target, at first according to the measuring method of total powerstation, the black crosshair 3 on the total powerstation bornb sight, is recorded the volume coordinate of each target in total station instrument coordinate system.Utilize camera and vision Photogrammetric Processing software to obtain the image coordinates of target then.At last according to photogrammetric method, the inside and outside parameter of the camera that can calculate by volume coordinate that obtains previously and image coordinates, various data such as the reconstruct position of target.
Application example:
In the test experiments of target, 19 targets are sticked in 12 meters the visual field, measure the volume coordinate of each target by total powerstation (the measuring point precision is 1mm), as shown in table 1.As exact value, during substitution is photogrammetric camera is demarcated, reconstruct the locus of 19 targets at last with the method for three-dimensionalreconstruction, as shown in table 2.The position of 19 targets of comparative experiments reconstruct as a result and the result of total station survey, the resultant error of two kinds of methods is about 3mm.So this target can satisfy the requirement of large scale measurement of coordinates well.
This target can satisfy the requirement of large scale measurement of coordinates well.
The above; it only is the embodiment in the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with the people of this technology in the disclosed technical scope of the utility model; can understand conversion or the replacement expected; all should be encompassed in of the present utility model comprising within the scope, therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (2)
1. compound target of large scale measurement of coordinates, it is characterized in that: described compound target is made by square or circular reflective membrane, the front center of reflective membrane is provided with a border circular areas, be provided with a black crosshair in the border circular areas, the region surface of border circular areas outside is provided with the black material overlayer.
2. the compound target of a kind of large scale measurement of coordinates according to claim 1, it is characterized in that: the point of crossing of described black crosshair overlaps with the center of circle of border circular areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200741636U CN202066514U (en) | 2011-03-21 | 2011-03-21 | Compound target for measuring large-scale coordinate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200741636U CN202066514U (en) | 2011-03-21 | 2011-03-21 | Compound target for measuring large-scale coordinate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202066514U true CN202066514U (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200741636U Expired - Fee Related CN202066514U (en) | 2011-03-21 | 2011-03-21 | Compound target for measuring large-scale coordinate |
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| CN (1) | CN202066514U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769146A (en) * | 2016-12-26 | 2017-05-31 | 东莞市敏通三防化工科技有限公司 | Three-proofing coating coats accuracy detection plate and its detection method |
| CN108278993A (en) * | 2018-04-18 | 2018-07-13 | 湖南科技大学 | Total reflection prism laser ranging total powerstation instrument height measuring system and application method |
| CN109255818A (en) * | 2018-08-12 | 2019-01-22 | 浙江农林大学 | A kind of extracting method of novel target and its sub-pixel angle point |
| CN111750842A (en) * | 2020-07-10 | 2020-10-09 | 中铁第四勘察设计院集团有限公司 | Reflector plate for photogrammetry and method for carrying out total station automatic collimation by adopting reflector plate |
| CN111811463A (en) * | 2020-06-02 | 2020-10-23 | 中国海洋石油集团有限公司 | Method for accurately measuring span of stand column at bottom of block |
| CN112233076A (en) * | 2020-09-30 | 2021-01-15 | 石家庄铁道大学 | Structural vibration displacement measurement method and device based on red round target image processing |
-
2011
- 2011-03-21 CN CN2011200741636U patent/CN202066514U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769146A (en) * | 2016-12-26 | 2017-05-31 | 东莞市敏通三防化工科技有限公司 | Three-proofing coating coats accuracy detection plate and its detection method |
| CN106769146B (en) * | 2016-12-26 | 2023-09-19 | 东莞市敏通三防化工科技有限公司 | Three-proofing paint coating precision detection plate and detection method thereof |
| CN108278993A (en) * | 2018-04-18 | 2018-07-13 | 湖南科技大学 | Total reflection prism laser ranging total powerstation instrument height measuring system and application method |
| CN109255818A (en) * | 2018-08-12 | 2019-01-22 | 浙江农林大学 | A kind of extracting method of novel target and its sub-pixel angle point |
| CN109255818B (en) * | 2018-08-12 | 2021-05-28 | 浙江农林大学 | Novel target and extraction method of sub-pixel level angular points thereof |
| CN111811463A (en) * | 2020-06-02 | 2020-10-23 | 中国海洋石油集团有限公司 | Method for accurately measuring span of stand column at bottom of block |
| CN111811463B (en) * | 2020-06-02 | 2022-07-01 | 中国海洋石油集团有限公司 | Method for accurately measuring span of stand column at bottom of block |
| CN111750842A (en) * | 2020-07-10 | 2020-10-09 | 中铁第四勘察设计院集团有限公司 | Reflector plate for photogrammetry and method for carrying out total station automatic collimation by adopting reflector plate |
| CN111750842B (en) * | 2020-07-10 | 2024-03-15 | 中铁第四勘察设计院集团有限公司 | Reflecting sheet for photogrammetry and automatic sighting method for total station by adopting reflecting sheet |
| CN112233076A (en) * | 2020-09-30 | 2021-01-15 | 石家庄铁道大学 | Structural vibration displacement measurement method and device based on red round target image processing |
| CN112233076B (en) * | 2020-09-30 | 2022-12-13 | 石家庄铁道大学 | Structural vibration displacement measurement method and device based on red round target image processing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20160321 |
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| CF01 | Termination of patent right due to non-payment of annual fee |