CN210741501U - Device for aerial photogrammetry of ground target in northwest hilly land - Google Patents
Device for aerial photogrammetry of ground target in northwest hilly land Download PDFInfo
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- CN210741501U CN210741501U CN201922197581.3U CN201922197581U CN210741501U CN 210741501 U CN210741501 U CN 210741501U CN 201922197581 U CN201922197581 U CN 201922197581U CN 210741501 U CN210741501 U CN 210741501U
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Abstract
The device for aerial photogrammetry of ground targets in northwest hilly lands is characterized by comprising a covering layer, wherein four corners of the covering layer are provided with fixing holes; the upper side of the geometric center of the covering layer is provided with a measuring nail; a support rod is arranged at the lower side of the geometric center of the covering layer; the covering layer is provided with a cross line parting line which divides the covering layer into two color difference areas; when the target is installed, the measuring nails 4 are used for nailing and connecting the ground target covering layer and the supporting layer through the cross center of the covering layer, the edges of the target are aligned to the wind direction according to the wind direction, the tip of the supporting layer is nailed in a required position, the covering layer is stretched, and the four fixing holes 2 of the unmanned aerial vehicle aerial photogrammetry ground target are fixed by using prepared steel nails or wood wedges; measuring a plane coordinate on a measuring nail on the arranged target by using RTK; acquiring data through aerial photography of an unmanned aerial vehicle; the method has the characteristics of improving the timeliness and effectiveness of the target.
Description
Technical Field
The utility model belongs to the technical field of the survey and drawing, concretely relates to a device that is used for northwest hilly area aerial photogrammetry ground mark target.
Background
At present, civil cameras are mainly used for low-altitude unmanned aerial photogrammetry, and ground image control points are distributed according to the specifications of low-altitude digital aerial photogrammetry specifications (CH/Z3003-2010) and low-altitude digital aerial photogrammetry field specifications (CH/Z3004-2010) and guidance files. The distributed image control points need to be selected, marked and accurately punched on the digital image.
The traditional point selection of the image control point is to search for a marker with a regular shape or paint spraying on the ground, and the target is required to be manufactured artificially in regions such as deserts, farmlands, grasslands, snowfields and the like without obvious markers and without paint spraying. However, in the northwest hilly terrain, the wind and sand are large, the sun irradiation is strong, the traditional landmark target is easily blown away, corroded or covered by the wind and sand, the retention time is short, the image control point is lost or difficult to find after the unmanned aerial vehicle takes an aerial photograph, and the later-stage imaging precision is influenced.
Disclosure of Invention
For overcoming the not enough of above-mentioned prior art, the utility model aims to provide a device that is used for northwest hilly area aerial photogrammetry ground mark target is adapted to northwest hilly area unmanned aerial vehicle aerial survey mark target, has the characteristics that improve the ageing and the validity of mark target.
In order to achieve the above object, the utility model adopts the following technical scheme: a device for aerial photogrammetry of ground targets in northwest hilly lands comprises a covering layer, wherein four corners of the covering layer are provided with fixing holes; the upper side of the geometric center of the covering layer is provided with a measuring nail; a support rod is arranged at the lower side of the geometric center of the covering layer; the covering layer is provided with a cross line parting line which divides the covering layer into two color difference areas.
The covering layer is a quadrangular body after being supported by the supporting rod.
The size of the covering layer is 1 meter multiplied by 1 meter.
And a metal ring is riveted in the fixing hole.
The support rod is a rod body with the diameter of 5 cm and the length of 50 cm.
The colors of the two color difference areas are symmetrically arranged by taking the measuring nail as a geometric center.
Compared with the prior art, the utility model discloses following beneficial effect has:
because the covering layer adopts cloth, terylene and medium-soft plastic, the purposes of reducing cost, resisting weathering and high temperature and improving durability can be achieved. The covering layer is made of glass beads and a white plastic film, so that reflection white light of aerial images can be prevented from affecting pricking point accuracy. The metal ring is riveted to the fixing hole, so that the durability and the stability can be improved. Because the covering layer is supported to be a quadrangular body, the dust accumulation and covering are effectively prevented.
1) The data precision and the later discrimination can be improved; 2) portability and prevention of dust accumulation can be improved; 3) durability and stability can be improved.
Drawings
Fig. 1 is a schematic view of the structure of the covering layer of the present invention.
Fig. 2 is a schematic vertical top view (right side up) of the present invention.
Fig. 3 is a schematic view of the present invention in a vertical bottom view (back side up).
Detailed Description
The structure and operation of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1-3, a device for aerial photogrammetry of ground targets in northwest hilly lands comprises a covering layer 1, wherein four corners of the covering layer 1 are provided with fixing holes 2; the upper side of the geometric center of the covering layer 1 is provided with a measuring nail 4; a support rod 3 is arranged at the lower side of the geometric center of the covering layer 1; the cover layer 1 is provided with a cross-line parting line which divides the cover layer 1 into two color difference regions 5.
The covering layer 1 is a quadrangular body after being supported by the supporting rods 3.
The size of the covering layer 1 is 1 meter multiplied by 1 meter.
And a metal ring is riveted in the fixing hole.
The support rod 3 is a rod body with the diameter of 5 cm and the length of 50 cm.
The colors of the two color difference areas 5 are symmetrically arranged by taking the measuring nail as a geometric center.
The covering layer is made of flexible materials, the specification is 1 m by 1 m, cross lines are required to be arranged, 2 differential color regions are arranged, the 2 differential color regions are arranged in a crossed mode, the color difference value is larger than 3, and the portability, the environment contrast and the later data precision can be improved.
The support rod comprises a support body made of hard materials, the diameter of the support body is 5 cm, the length of the support body is 50 cm, one end of the support body is flat, the other end of the support body is pointed, a covering layer covers the flat end of the support body, a measuring nail is nailed into the support layer from the cross center of the covering layer, and one end of the tip of the support body is conveniently inserted into soil.
Can be with convenient the fixing in hilly land of unmanned aerial vehicle aerial survey mark target to prop up the mark target and be the quadrangular body, the effectual sand and dust that prevents is piled up and is covered.
Four angles of the overburden of unmanned aerial vehicle aerial survey mark target all are provided with the fixed orifices that run through, and the fixed orifices riveting has the becket, can improve durability and stability.
The covering layer is made of cloth, terylene or medium soft plastic, so as to achieve the purposes of reducing cost, resisting weathering, resisting high temperature and improving durability.
In the solar irradiation of northwest hilly areas, materials with strong reflectivity, such as glass beads and white plastic films, are not selected for the strong covering layer, so that the phenomenon that white light is reflected by aerial images to influence the pricking point precision is avoided.
The utility model discloses a theory of operation is:
when the device is used, RTK is used for carrying out elevation measurement of image control points, the target is installed after the elevation points are obtained, the measuring nail 4 is used for nailing and connecting the covering layer 1 and the supporting layer 3 of the unmanned aerial vehicle aerial photogrammetry ground target of the embodiment through the cross center of the covering layer when the target is installed, then the edge of the target is aligned to the wind direction according to the wind direction, the tip of the supporting layer is nailed into a required position 15 cm deep and fixed, and the covering layer is stretched and four fixing holes 2 of the unmanned aerial vehicle aerial photogrammetry ground target are fixed at the required position by adopting prepared steel nails or wood wedges; measuring a plane coordinate on a measuring nail on the arranged target by using RTK; and finally, acquiring data through aerial photography of the unmanned aerial vehicle, and recording the elevation point to be measured firstly, so that the situation that the real ground elevation cannot be acquired after the target is installed and the later elevation error is serious is prevented.
Referring to fig. 1, this embodiment 1 is a ground target device for aerial photogrammetry in northwest hilly areas, which includes a covering layer 1 and a supporting layer 3, where the covering layer is usually made of soft materials such as cloth, polyester, soft plastic, etc. to achieve the purposes of reducing cost, resisting weathering, resisting high temperature, and improving durability, and the covering layer is strong against sunlight irradiation in the northwest hilly areas, and does not select a material with strong reflectivity, so as to avoid white light reflected by aerial images, which affects pricking point accuracy.
The support layer 3 is typically a rigid material such as hard plastic, wood, etc. to reduce cost and improve durability.
The covering layer 1 is provided with a cross line dividing line and 2 color difference areas 5, the 2 color difference areas are arranged in a crossed mode, the color difference value is larger than 3, and the color difference areas 5 are respectively red and white.
When the unmanned aerial vehicle aerial photogrammetry ground mark target of this embodiment is the square overlook, the specification is 1 meter by 1 meter. Of course, the ground target for aerial photogrammetry by unmanned aerial vehicle of the embodiment can also be cut into other specifications or shapes such as a rectangle or a circle according to the requirement. The square ground target for aerial photogrammetry of the unmanned aerial vehicle corresponds to the satellite image pixels, so that the post-processing precision is improved conveniently.
Four angles of unmanned aerial vehicle aerial photogrammetry ground mark target all are provided with the fixed orifices 2 that run through. The fixing hole 2 is riveted with a metal ring to improve durability. Can adopt prepared steel nail or wooden wedge etc. in advance to fix unmanned aerial vehicle aerial photogrammetry ground mark target in required position, prevent that unmanned aerial vehicle aerial photogrammetry ground mark target from being blown etc. and reducing the precision of post processing by the wind that moves.
The operating principle of the aerial photogrammetry ground target of the unmanned aerial vehicle of this embodiment is: during the use, will use earlier to measure the nail and pass through the cross center nail of overburden with the unmanned aerial vehicle aerial photogrammetry ground target overburden of this embodiment and supporting layer and go into the connection, then the most advanced nail of supporting layer is fixed about required position 15 centimetres of depth, draws the overburden to expand and adopts prepared steel nail or wooden wedge etc. in advance to fix the overburden four angles of unmanned aerial vehicle aerial photogrammetry ground target in required position. When RTK is used for image control measurement, the elevation point can be measured at the original position, and then the plane coordinate is measured on the measuring nail on the arranged target. And finally, acquiring data through aerial photography of the unmanned aerial vehicle.
Because this unmanned aerial vehicle aerial photogrammetry ground mark target is three-dimensional four pyramid, can fine prevent that the sand prevention is long-pending to fall to cover and blow to improve the integrality and the post processing precision of the image accuse data of taking photo by plane.
Claims (6)
1. The device for aerial photogrammetry of the ground target in the northwest hilly land is characterized by comprising a covering layer (1), wherein four corners of the covering layer (1) are provided with fixing holes (2); the upper side of the geometric center of the covering layer (1) is provided with a measuring nail (4); a support rod (3) is arranged at the lower side of the geometric center of the covering layer (1); the covering layer (1) is provided with a cross line dividing line which divides the covering layer (1) into two color difference areas (5).
2. The device for aerial photogrammetry of ground targets in the northwest hilly areas of claim 1, characterized in that the overlay (1) is quadrangular after being supported by the support rods (3).
3. The device for aerial photogrammetry of ground targets in the northwest hilly areas of claim 1, characterized in that the dimensions of the overlay (1) are 1 m x 1 m.
4. The apparatus of claim 1, wherein a metal ring is riveted into the fixing hole.
5. The device for aerial photogrammetry of ground targets in the northwest hilly areas of claim 1, characterized in that the support bar (3) is a bar body with a diameter of 5 cm and a length of 50 cm.
6. Device for aerial photogrammetry of ground targets for the northwest hilly areas according to claim 1, characterized in that the colours of the two coloured zones (5) are arranged symmetrically with the measuring pin as the geometric centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922197581.3U CN210741501U (en) | 2019-12-10 | 2019-12-10 | Device for aerial photogrammetry of ground target in northwest hilly land |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922197581.3U CN210741501U (en) | 2019-12-10 | 2019-12-10 | Device for aerial photogrammetry of ground target in northwest hilly land |
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| CN210741501U true CN210741501U (en) | 2020-06-12 |
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| CN201922197581.3U Active CN210741501U (en) | 2019-12-10 | 2019-12-10 | Device for aerial photogrammetry of ground target in northwest hilly land |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066963A (en) * | 2020-08-24 | 2020-12-11 | 中国人民解放军61243部队 | Ground control point target for photogrammetry and rapid layout method thereof |
| CN112504236A (en) * | 2020-12-12 | 2021-03-16 | 国网辽宁省电力有限公司铁岭供电公司 | Unmanned aerial vehicle aerial photography power distribution network area surveying and mapping method |
| CN116539015A (en) * | 2023-07-03 | 2023-08-04 | 云南超图地理信息有限公司 | Remote sensing survey and drawing support |
-
2019
- 2019-12-10 CN CN201922197581.3U patent/CN210741501U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066963A (en) * | 2020-08-24 | 2020-12-11 | 中国人民解放军61243部队 | Ground control point target for photogrammetry and rapid layout method thereof |
| CN112504236A (en) * | 2020-12-12 | 2021-03-16 | 国网辽宁省电力有限公司铁岭供电公司 | Unmanned aerial vehicle aerial photography power distribution network area surveying and mapping method |
| CN116539015A (en) * | 2023-07-03 | 2023-08-04 | 云南超图地理信息有限公司 | Remote sensing survey and drawing support |
| CN116539015B (en) * | 2023-07-03 | 2023-09-05 | 云南超图地理信息有限公司 | Remote sensing survey and drawing support |
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