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Space-air-earth-integrated situation expression engine and engine viewpoint cross-scale seamless switching method

A seamless switching, space-to-space technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of lack of transition and rigidity in the switching of three large-scale targets

Inactive Publication Date: 2014-02-26
THE PLA INFORMATION ENG UNIV
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Problems solved by technology

[0018] The purpose of the present invention is to provide an air-space-ground integrated situation expression engine and its method for seamless switching of viewpoints across scales, so as to solve the above-mentioned problems caused by the lack of transition when switching between three scale targets.

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  • Space-air-earth-integrated situation expression engine and engine viewpoint cross-scale seamless switching method
  • Space-air-earth-integrated situation expression engine and engine viewpoint cross-scale seamless switching method
  • Space-air-earth-integrated situation expression engine and engine viewpoint cross-scale seamless switching method

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Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0048] The air-space-ground integrated situation expression engine is to visualize near-Earth space, the farther moon, planets, and even the ionosphere, radiation layer, etc., including one as large as the entire solar system, as small as a ground station on the ground, and a ground station The surrounding terrain, and a space environment simulation platform that can uniformly display various situation data such as space target catalogs and space environments.

[0049] On the basis of the prior art, in order to solve many problems pointed out in the background art, the present invention proposes various solutions respectively. The following embodiments only provide the methods corresponding to the expression engine.

[0050] The invention provides a cross-scale seamless switching method of viewpoints.

[0051] When it is necessary to switch the viewpoint fr...

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Abstract

The invention relates to a space-air-earth-integrated situation expression engine and an engine viewpoint cross-scale seamless switching method. A viewpoint moves to the target position along a certain path instead of directly arriving at the target position. Due to the fact that the situation expression engine is large in span and contains the situation sensing targets of the whole solar system, seamless switching can be achieved by linear switching, and implementation convenience can be achieved. When the viewpoint is close to the targets, a spherical roaming manner is used. By the combination of viewpoint control and switching, omni-directional observation and seamless switching of various targets in the space-air-earth-integrated situation expression engine can be achieved.

Description

technical field [0001] The invention relates to an air-space-ground integrated situation expression engine and a method for seamlessly switching viewpoints across scales. Background technique [0002] With the development of technology, human activities are no longer limited to the ground, and space has become another important place for human activities. In order to occupy this important territory of space, more and more satellites are launched into space, making the number of in-orbit and invalid satellites reach tens of thousands, and the space environment deteriorates sharply. In order to ensure space security and maintain space interests, countries have established their own space situational awareness systems. The space situational awareness system is a huge and complex system engineering. The data it acquires includes various multi-source heterogeneous data such as space-based and ground-based. How to effectively use these data to provide information services for str...

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Application Information

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IPC IPC(8): G06F19/00
Inventor 徐青施群山蓝朝桢姜挺吕亮周杨李建胜靳国旺孙伟邢帅龚志辉
Owner THE PLA INFORMATION ENG UNIV
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