用于观测低轨巨型星座的光学设备
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for observing large low-Earth orbit constellations suffer from high equipment construction costs, expensive operating costs, and limited sky coverage, making it difficult to achieve full-process observation and high-precision orbit determination.
An optical device employing multiple imaging units, each including a focusing lens, an image sensor, and a data processor, achieves full coverage by stitching together imaging units with different orientations. Combined with a timing device, it provides accurate time information, and the data processor processes image data to obtain the position information of the low-Earth orbit mega-constellation.
It achieves low-cost, rapid deployment of full-coverage observation, reduces equipment size and operating costs, is suitable for rapid deployment, and improves orbit determination accuracy.
Smart Images
Figure CN224521113U_ABST
Abstract
Claims
1. An optical device for observing a low earth mega constellation, characterized in that, The system includes an imaging device and a timing device. The imaging device comprises multiple imaging units, each including a focusing lens, an image sensor, and a data processor. The focusing lens is connected to the image sensor, and the image sensor is connected to the data processor. The timing device is connected to the image sensors of each imaging unit to provide accurate time information. The focusing lenses of each imaging unit are oriented in different directions. Each focusing lens focuses the area it points to onto its corresponding image sensor, and the image sensor images the area pointed to by its corresponding focusing lens to obtain image data containing time information. The data processor processes the image data to obtain information about the low-Earth orbit mega-constellation within the area pointed to by the focusing lens.
2. The optical device for observing a low earth mega constellation according to claim 1, characterized in that, The focusing lens is a fixed-focus lens.
3. The optical device for observing a low earth mega constellation according to claim 1, wherein, Each of the imaging units also includes a base, on which the focusing lens, the image sensor, and the data processor are all fixed.
4. The optical device for observing a low earth mega constellation according to claim 3, wherein, The base provides a preset angle for the focusing lens so that the focusing lens is oriented in a preset direction.
5. The optical device for observing a low earth mega constellation according to claim 1, wherein, The direction includes azimuth and elevation. Each imaging unit is divided into four groups, each group including multiple imaging units. Each group has a different elevation angle, and each imaging unit in each group has the same elevation angle. The azimuth of each imaging unit in each group is different.
6. The optical device for observing a low earth mega constellation according to claim 5, wherein, The four groups include the first group, the second group, the third group, and the fourth group. The first group includes 12 imaging units, the second group includes 10 imaging units, the third group includes 7 imaging units, and the fourth group includes 2 imaging units. The elevation angle of the first group is 29.1°, the elevation angle of the second group is 47.3°, the elevation angle of the third group is 65.5°, and the elevation angle of the fourth group is 81°; The azimuths of the imaging units in the first group are 0°, 30°, 60°, 90°, 120°, 150°, 180°, 210°, 240°, 270°, 300°, and 330°, respectively; the azimuths of the imaging units in the second group are 0°, 36°, 72°, 108°, 144°, 180°, 216°, 252°, 288°, and 324°, respectively; the azimuths of the imaging units in the third group are 0°, 51.43°, 102.86°, 154.29°, 205.72°, 257.15°, and 308.58°, respectively; and the azimuths of the imaging units in the fourth group are 0° and 180°, respectively.
7. The optical device for observing a low earth mega constellation according to claim 6, wherein, The imaging units of the first group are arranged sequentially along the circumference of the first circle, the imaging units of the second group are arranged sequentially along the circumference of the second circle, the imaging units of the third group are arranged sequentially along the circumference of the third circle, and the imaging units of the fourth group are located outside the first group and are arranged radially opposite each other along the first circle.
8. The optical device for observing a low earth mega constellation according to claim 1, wherein, It also includes a protective cover, a controller, and a weather station. The weather station is located outside the protective cover and is used to detect weather information. The imaging device, the timing device, and the controller are all located inside the protective cover. The controller is connected to the weather station, the protective cover, and the imaging device, respectively.
9. The optical device for observing a low earth mega constellation according to claim 1, wherein, It also includes a data storage server, which is connected to each imaging unit of the imaging device.
10. The optical device for observing low-Earth orbit mega-constellations according to claim 8, characterized in that, It also includes a remote relay, through which the imaging device, the timing device, the controller, and the weather station are all connected to the power supply.