CN202033034U - Digital aerial photogrammetry device with replaceable lens - Google Patents
Digital aerial photogrammetry device with replaceable lens Download PDFInfo
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- CN202033034U CN202033034U CN2011201235097U CN201120123509U CN202033034U CN 202033034 U CN202033034 U CN 202033034U CN 2011201235097 U CN2011201235097 U CN 2011201235097U CN 201120123509 U CN201120123509 U CN 201120123509U CN 202033034 U CN202033034 U CN 202033034U
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Abstract
The utility model discloses a digital aerial photogrammetry device with a replaceable lens. Four digital cameras calibrated precisely are arranged on an arc-shaped mounting hole of a round concave plate bracket to form a surface array type shooting structure. Since the four digital cameras are arranged on the arc-shaped mounting hole of the round concave plate bracket to form the surface array type shooting structure, the large-format aerial photogrammetry can be achieved, the format of spliced images can reach 10K multiplied by 14.5K, lenses with different focal lengths can be matched with round concave plate brackets with different sizes, the whole structure can be replaced, and appropriate lenses can be conveniently selected for different aerial photogrammetry tasks.
Description
Technical field
The utility model is a kind of digital airborne photography measurement mechanism, belongs to the photogrammetric measurement technical field.
Background technology
Along with the continuous increase of China territory mapping demand, traditional film aerial survey has not caught up with the development of modern mapping, and digital aerial survey will replace the film aerial survey gradually, the aeroplane photography instrument from the film epoch to the digital age transition.Existing external import digital airborne photography camera mostly is fixed focal length, when carrying out photogrammetric measurement, difference according to task character, generally can improve photogrammetric accuracy by selecting suitable camera lens for use, as select any focal length lens among 35mm, 50mm, the 80mm for use, wherein the most frequently used is exactly 50mm or 80mm camera lens, thereby improves the photographic efficiency and the quality of image of large tracts of land flat site, make things convenient for the aeroplane photography in large scale, big discrepancy in elevation area, but obtain more flying weather.
The utility model content
The purpose of this utility model provides a kind of digital airborne photography measurement mechanism of lens changeable, can easily change camera lens, the convenient large format photogrammetric measurement that realizes.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of digital airborne photography measurement mechanism of lens changeable, the digital camera of four accurate calibrations of process are fixedly mounted on the cambered surface mounting hole of circular recessed disc carrier, form a planar array type and take structure.
Preferably, the diameter D of the recessed disc carrier of described circle is 335mm, and spill sagitta H is 66-68mm, and the diameter R of camera lens mounting hole is 90mm; The projection centre of described four digital camera lens is rectangular on the bottom surface of the recessed disc carrier of circle.
Further, for the 50mm focal length lens, the length of side a of described rectangle and the length of b are respectively 133 millimeters, 147 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed disc carrier is 26 °.
Further, for the 80mm focal length lens, the length of side a of described rectangle and the length of b are respectively 131 millimeters, 151 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed disc carrier is 18 °.
Further, for the 35mm focal length lens, the length of side a of described rectangle and the length of b are respectively 134 millimeters, 153 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed disc carrier is 28 °.
Digital airborne photography measurement mechanism described in the utility model, the digital digital camera of four accurate calibrations is installed on the cambered surface mounting hole of circular recessed disc carrier, form a planar array type and take structure, can realize the large format photogrammetric measurement, splicing back image breadth can reach 10K * 14.5K, the camera lens of different focal cooperates the circular recessed disc carrier of different size, and integral body has convertibility, can select suitable camera lens for use at different photogrammetric measurement tasks easily.
Description of drawings
According to embodiment and accompanying drawing the utility model is described in further detail below.
Fig. 1 is that digital airborne photography measurement mechanism described in the utility model is formed structural representation;
Fig. 2 is the recessed disc carrier structural representation of described circle;
Fig. 3 is the cut-open view of the recessed disc carrier of described circle.
Among the figure:
1, digital camera; 2, circular recessed disc carrier; 3, bolt; 4, mounting hole.
Embodiment
As shown in Figure 1, single digital camera is through fixing processing, accurate calibration, form a scalability aeroplane photography digital camera 1, four digital cameras 1 that fixing and calibration are finished are installed on the cambered surface mounting hole of a recessed disc carrier 2 of circle 4, adopt bolt 3 fixing, form the shooting structure of a planar array type, the diameter D of circular recessed disc carrier is 335mm, spill sagitta H is 66-68mm, and the diameter of camera lens mounting hole is 90mm.
According to different towing photographing scales and topographic condition, select the camera lens of suitable focal length, through fixing and accurate calibration, easily realize the large format photogrammetric measurement, according to the replaceable 35mm of present operating position, 50mm, three kinds of focal length lenses of 80mm, the most frequently used is exactly two kinds of camera lenses of 50mm, 80mm.
Rectangular on the bottom surface of the circular recessed disc carrier of the projection centre of four camera lenses, two length of sides of rectangle are respectively a and b, and the angle of the center line of camera lens mounting hole and the axis of circular recessed dish is α.The length of 50mm focal length lens a and b is respectively 133 millimeters, 147 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed dish is 26 °.
The length of 80mm focal length lens a and b is respectively 131 millimeters, 151 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed dish is 18 °.
The length of 35mm focal length lens a and b is respectively 134 millimeters, 153 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed dish is 28 °.
Claims (6)
1. the digital airborne photography measurement mechanism of a lens changeable, it is characterized in that: the digital camera of four accurate calibrations of process is fixedly mounted on the cambered surface mounting hole of circular recessed disc carrier, forms a planar array type and takes structure.
2. digital airborne photography measurement mechanism according to claim 1 is characterized in that: the diameter D of the recessed disc carrier of described circle is 335mm, and spill sagitta H is 66-68mm, and the diameter R of camera lens mounting hole is 90mm.
3. digital airborne photography measurement mechanism according to claim 2 is characterized in that: the projection centre of described four digital camera lens is rectangular on the bottom surface of the recessed disc carrier of circle.
4. digital airborne photography measurement mechanism according to claim 3, it is characterized in that: for the 50mm focal length lens, the length of side a of described rectangle and the length of b are respectively 133 millimeters, 147 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed disc carrier is 26.。
5. digital airborne photography measurement mechanism according to claim 3, it is characterized in that: for the 80mm focal length lens, the length of side a of described rectangle and the length of b are respectively 131 millimeters, 151 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed disc carrier is 18 °.
6. digital airborne photography measurement mechanism according to claim 3, it is characterized in that: for the 35mm focal length lens, the length of side a of described rectangle and the length of b are respectively 134 millimeters, 153 millimeters, and the angle α of the center line of camera lens mounting hole and the axis of circular recessed disc carrier is 28 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201235097U CN202033034U (en) | 2011-04-25 | 2011-04-25 | Digital aerial photogrammetry device with replaceable lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201235097U CN202033034U (en) | 2011-04-25 | 2011-04-25 | Digital aerial photogrammetry device with replaceable lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202033034U true CN202033034U (en) | 2011-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201235097U Expired - Fee Related CN202033034U (en) | 2011-04-25 | 2011-04-25 | Digital aerial photogrammetry device with replaceable lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202033034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438867A (en) * | 2013-09-06 | 2013-12-11 | 中测新图(北京)遥感技术有限责任公司 | Onboard multi-vision three-dimensional aviation remote sensing system of small-size light unmanned plane |
| CN108843896A (en) * | 2018-06-28 | 2018-11-20 | 信利光电股份有限公司 | A kind of spare bracket of dual camera mould group |
-
2011
- 2011-04-25 CN CN2011201235097U patent/CN202033034U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438867A (en) * | 2013-09-06 | 2013-12-11 | 中测新图(北京)遥感技术有限责任公司 | Onboard multi-vision three-dimensional aviation remote sensing system of small-size light unmanned plane |
| CN103438867B (en) * | 2013-09-06 | 2016-03-02 | 中测新图(北京)遥感技术有限责任公司 | Small-sized unmanned aerial vehicle onboard looks three-dimensional airborne remote sensing system more |
| CN108843896A (en) * | 2018-06-28 | 2018-11-20 | 信利光电股份有限公司 | A kind of spare bracket of dual camera mould group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20120425 |