Principles of SunlightLine Location Displacement and Software Design
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Abstract:
Based on the principles of earth rotation and revolution, the effects of the obliquity of the ecliptic plane, solar declination, longitude, and solar elevation angle on the formation of the sunlight line on a dark tube sunshine recorder are analyzed. The principles of sunlightline location displacement with seasonal variation are described, and the regularities of sunlightline formation at spring equinox, autumnal equinox, winter solstice and summer solstice are discussed. Under the condition of the fixed earth motion trajectory, the daytoday sunshine path line can be obtained. With the theoretical basis, the software for sunlight line formation are designed and introduced.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.