研究生: |
林育正 Yu-Zheng Lin |
---|---|
論文名稱: |
以嵌入式系統設計與分析用於自然光照明的自動對準定日鏡 Design and Fabrication of Heliostat System for Natural Light Illumination System |
指導教授: |
黃忠偉
Allen Jong-Woei Whang 徐敬文 Ching-Wen Hsue |
口試委員: |
趙涵捷
Han-Chieh Chao 林瑞珠 Jui-Chu Lin |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2016 |
畢業學年度: | 104 |
語文別: | 中文 |
論文頁數: | 53 |
中文關鍵詞: | 自然光照明系統 、追日系統 、定日鏡 |
外文關鍵詞: | Daylighting System, Solar Tracker, Solar Heliostat. |
相關次數: | 點閱:280 下載:1 |
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將自然光引入室內除節能之外,亦對人體有許多正面影響,包含提升工作效率、加速傷患恢復等。過去由黃忠偉教授等人(Whang et al., 2010)提出自然光照明系統的概念,而後王辰佑(Wang, 2014)提出可利用定日鏡架設於自然光照明系統的靜態集光器之前,而使集光效率提升3.32倍。本研究所設計之裝置使用嵌入式系統配合多種感測器,並使用高精度的太陽位置演算法,配合高精度馬達控制,使該裝置擁有超低誤差偏移量,當裝置將日光投射於100公尺目標處的偏移量僅有4.9cm。本研究提出了使用地理座標配合高度差的計算方式,計算定日裝置與光線投射目標的方位角及仰角,使裝置能夠自動對準目標。目前已完成一雛型裝置的機構、硬體電路、軟體設計的相關研究,可實現實時追蹤太陽入射鏡面後反射至目標點的法線,使自然光照明系統的集光系統可在全日維持最佳效能運作狀態。
Guiding nature light into rooms can reduce the use of energy. Besides, there are many advantages for human, such as improving efficiency at work, speeding up the recovery of patients, etc. In the previous studies, Whang et al. (2010) proposes the concept of the natural light illumination system. Wang (2014) investigates the design of a heliostat that reflects sunlight onto static solar concentrator of natural light illumination system, and they makes the system efficiency increase as high as 3.32 times. In this study, our device uses an embedded system with multiple sensors, and applies high-precision solar position algorithm with high-precision motor control, so that the device has a very low offset error.(i.e. the offset of 100 meters from the target is only 4.9cm.) In order to align the target automatically, this study proposes the use of geographic coordinates with difference of attitude to calculate the azimuth and elevation of the target. This work has completed a prototype device, hardware circuits, software design, etc, We realize real-time tracking the normal line of the sun's incidence and reflection to the target. As a result, the light collecting system of natural light illumination system can maintain the best performance in the whole day.
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