應用於可見光通訊之廣角追光接收模組｜國立臺灣科技大學博碩士論文系統

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研究生：	鐘文鍇 Wen-Kai Zhong
論文名稱：	應用於可見光通訊之廣角追光接收模組 Wide-Angle Receivers for Visible Light Communication
指導教授：	宋峻宇 Jiun-Yu Sung
口試委員:	張勝良 Sheng-Lyang Jang 廖顯奎 Shien-Kuei Liaw
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：	2023
畢業學年度：	111
語文別：	中文
論文頁數：	85
中文關鍵詞：	可見光通訊、自動追光系統、角度多樣性接收器
外文關鍵詞：	Visible Light Communication, Automatic Tracking System, Angle Diversity Receiver
相關次數：	點閱：195 下載：0
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室內無線通訊是無線網路的一項關鍵應用場域，並隨著VR (Virtual Reality )等高流量娛樂應用的發展，需要更快的傳輸速率。為了相應的頻寬需求，無線電系統正對毫米波甚至THz波段的傳輸技術進行廣泛討論，相關技術目前在成本與實踐上仍舊具有許多挑戰。相較於無線電，無線光通訊具有極寬廣而免費的頻譜資源，並且隨著包含LED ( Light-Emitting Diode )在內的高速光源之普及，可以與室內照明系統整合，提供額外的經濟附加價值，因此室內可見光通訊成為可以與無線電互補的另一項高潛力方案。高速可見光通訊對於接收信號具有更嚴苛的能量要求，因此實務上可能會與特定光學系統整合，透過聚光/導光等方式提升接收信號能量。聚光等方案增加了光的指向性，因此用戶可能需要動態追蹤光束，以有效將接收器與光束角度對齊。
本論文研究具有動態追光功能的可見光通訊接收器模組。該模組利用具有相對寬頻特性的光電晶體PT ( Phototransistor )與廣接收角的光敏電阻LDR ( Light Dependent Resistor )分別進行通訊與追光，並透過自製載具實現元件不同空間配置的實體，之後透過量測數據反饋，設計並實現接收角180°x180°，且能進行正負1°內追光精準度的接收器模組。該模具可以自動追蹤180°的用戶角度偏移。實時傳輸表現方面，在180°x180°的空間範圍內，其10°內隨機旋轉後所接收的音訊與0°靜態位置所接收的音訊相比較，可表現出0.7的最佳估計相關性。

The developing high-bandwidth entertainment applications like 3D display and virtual reality (VR) have pushed the wireless traffic. In order to get sufficient transmission bandwidth, radio spectrum up to the millimeter-wave and terahertz regions is extensively considered. These high-frequency options are still expensive and are demanding for tremendous studies for practical applications. Other than the radio options, optical wireless communication is attracting lots of attention for its abundant free spectrum resources. Besides, with the increasing applications of the high-speed light sources like light-emitting diodes (LEDs) in the indoor illumination systems, visible light communication (VLC) is also popular as a complement to the indoor bandwidth requirements. Considering the available power budget, high-speed VLC may apply specific optical systems to enhance the signal receiving power by steering/focusing the light. The light beams are then more directional, and the mobile users must dynamically align their receivers towards light sources.
This thesis designs and tests various VLC receivers capable of tracking the light. Each receiver includes a relatively wideband phototransistor for communication and multiple wide-angle photo-resistors for light tracking. Each set of the phototransistors and the photo-resistors is specially arranged on the shape-customized mounts printed by the 3D printer. The light tracking performance of each receiver is tested and iteratively feedback for designing the next receiver. The final receiver can automatically track the light source with full angle range of 180°x180° under a tuning resolution of 1°. Under a real-time test which randomly rotating the receiver within ±10° around the light center, the detected signal wave shape has a correlation of 0.7 to the 0° static audio.

摘要    I
Abstract    II
誌謝    IV
目錄    V
圖目錄    VII
表目錄    1
第一章 緒論    2
1 前言    2
2 研究動機    3
3 文獻探討    4
4 論文架構    9
第二章 實驗原理    10
1 可見光通訊原理    11
1.1 可見光光源    11
1.2 朗伯輻射體圖形    13
1.3 光電元件    14
2 幾何光學與透鏡    17
2.1 幾何光學    18
2.2 透鏡焦點計算公式    18
第三章 實驗架構與元件量測    21
1 實驗相關元件與建模軟體    22
1.1 可見光光源量測    22
1.2 光電電晶體量測    25
1.3 光敏電阻量測    26
1.4 Rx處理電路圖    27
1.5 Arduino Mega2560    28
1.6 SG90伺服馬達    29
1.7 3D列印機與3D建模軟體    30
2 模具量測介紹    31
2.1 模具總類介紹    31
2.2 固定接收端之底座介紹    33
3 平面光學模具之量測    34
3.1 模具一 PT(14mm) + LDR*4    34
3.2 模具二 PT(14mm) + LDR*4(10mm)    37
4 曲面光學模具之量測    40
4.1 模具三 PT(14mm) + LDR*4(10mm) - 45°    40
4.2 模具四 PT(14mm) + LDR*4(10mm) - 10°    43
5 外圈光學模具之量測    46
5.1 模具五 PT(14mm)+LDR*4(10mm)-45°+LDR*4(10mm)-60°    46
5.2 模具六 PT(14mm)+LDR*4(10mm)-10°+LDR*4(10mm)-69°    50
6 章節小節    54
第四章 系統表現    55
1 系統表現    55
1.1 追光表現    55
1.2 傳輸表現    56
2 平面光學模具之追光表現    57
2.1 模具一 PT(14mm) + LDR*4    57
2.2 模具二 PT(14mm) + LDR*4(10mm)    59
3 曲面光學模具之追光表現    61
3.1 模具三 PT(14mm) + LDR*4(10mm) - 45°    61
3.2 模具四 PT(14mm) + LDR*4(10mm) - 10°    63
4 外圈光學模具之追光表現    66
4.1 模具五 PT(14mm)+LDR*4(10mm)-45°+LDR*4(10mm)-60°    66
4.2 模具六 PT(14mm)+LDR*4(10mm)-10°+LDR*4(10mm)-69°    69
5 模具六的傳輸表現    72
5.1 模擬晃動量測    73
6 章節小結    76
第五章 結論與未來展望    78
1 結論    78
2 未來展望    80
參考資料    81

                                

[1] Jan-Willem van Bloem, Roel Schiphorst, Taco Kluwer, Cornelis H. Slump, "Spectrum utilization and congestion of IEEE 802.11 networks in the 2.4 GHz ISM band," Journal of Green Engineering, vol. 2, no. 4, pp. 401-430, 2011.
[2] Shihao Ju, Yunchou Xing, Ojas Kanhere, Theodore S. Rappaport, "Millimeter Wave and Sub-Terahertz Spatial Statistical Channel Model for an Indoor Office Building," IEEE Journal on Selected Areas in Communications, vol. 39, no. 6, pp. 1561-1575, 2021.
[3] T. Koonen, "Indoor Optical Wireless Systems: Technology, Trends, and Applications," Journal of Lightwave Technology, vol. 36, no. 8, pp. 1459-1467, 2018.
[4] Parth H. Pathak, Xiaotao Feng, Pengfei Hu, Prasant Mohapatra, "Visible Light Communication, Networking, and Sensing: A Survey, Potential and Challenges," IEEE Communications Surveys & Tutorials, vol. 17, no. 4, pp. 2047-2077, 2015.
[5] Abdullah Sevincer, Aashish Bhattarai, Mehmet Bilgi, Murat Yuksel, Nezih Pala, "LIGHTNETs: Smart LIGHTing and Mobile Optical Wireless NETworks – A Survey," IEEE Communications Surveys & Tutorials, vol. 15, no. 4, pp. 1620-1641, 2013.
[6] Luiz Eduardo Mendes Matheus, Alex Borges Vieira, Luiz F. M. Vieira, Marcos A. M. Vieira, Omprakash Gnawali, "Visible Light Communication: Concepts, Applications and Challenges," IEEE Communications Surveys & Tutorials, vol. 21, no. 4, pp. 3204-3237, 2019.
[7] Enyuan Xie, Rui Bian, Xiangyu He, Mohamed Sufyan Islim, Cheng Chen, Jonathan J. D. McKendry, Erdan Gu, Harald Haas, Martin D. Dawson, "Over 10 Gbps VLC for Long-Distance Applications Using a GaN-Based Series-Biased Micro-LED Array," IEEE Photonics Technology Letters, vol. 32, no. 9, pp. 499-502, 2020.
[8] Liane Grobe, Anagnostis Paraskevopoulos, Jonas Hilt, Dominic Schulz, Friedrich Lassak, Florian Hartlieb, Christoph Kottke, Volker Jungnickel, Klaus-Dieter Langer, "High-speed visible light communication systems," IEEE Communications Magazine, vol. 51, no. 12, pp. 60-66, 2013.
[9] Jin-Yuan Wang, Sheng-Hong Lin, Cheng Liu, Jun-Bo Wang, Bingcheng Zhu, Yuan Jiang, "Secrecy Capacity of Indoor Visible Light Communication Channels," in 2018 IEEE International Conference on Communications Workshops (ICC Workshops), 2018.
[10] Xiuming Zhu, Cheng-Xiang Wang, Jie Huang, Ming Chen, Harald Haas, "A Novel 3D Non-Stationary Channel Model for 6G Indoor Visible Light Communication Systems," IEEE Transactions on Wireless Communications, vol. 21, no. 10, pp. 8292-8307, 2022.
[11] Chen Chen, Wen-De Zhong, Helin Yang, Sheng Zhang, Pengfei Du, “Reduction of SINR Fluctuation in Indoor Multi-Cell VLC Systems Using Optimized Angle Diversity Receiver,” Journal of Lightwave Technology, 第冊36, 編號 17, pp. 3603-3610, 2018.
[12] Zhihong Zeng, Mohammad Dehghani Soltani, Majid Safari, Harald Haas, "Angle Diversity Receiver in LiFi Cellular Networks," in ICC 2019 - 2019 IEEE International Conference on Communications (ICC), 2019.
[13] Sourish Chatterjee, Biswanath Roy, "Multi-parameter optimization of a hemispheric angle diversity receiver to reduce SINR fluctuation for an indoor MIMO-VLC system," in 2021 4th Biennial International Conference on Nascent Technologies in Engineering (ICNTE), 2021.
[14] Chen Chen, Wen-De Zhong, Dehao Wu, Zabih Ghassemlooy, "Wide-FOV and High-Gain Imaging Angle Diversity Receiver for Indoor SDM-VLC Systems," IEEE Photonics Technology Letters, vol. 28, no. 19, pp. 2078-2081, 2016.
[15] Carlos Medina, Maytee Zambrano Nuñez, Kiara Navarro, "LED BASED VISIBLE LIGHT COMMUNICATION: TECHNOLOGY, APPLICATIONS AND CHALLENGES – A SURVEY," International Journal of Advances in Engineering & Technology, vol. 8, no. 4, pp. 482-495, 2015.
[16] Dilukshan Karunatilaka, Fahad Zafar, Vineetha Kalavally, Rajendran Parthiban, "LED Based Indoor Visible Light Communications: State of the Art," IEEE Communications Surveys & Tutorials, vol. 17, no. 3, pp. 1649-1678, 2015.
[17] G Dhivya, K Hariharan, P Poonguzhali, M Vaibhav, S Lokeshwar, Sayantani Bhattacharya, "ILLUMINATE - VIsibLe Light CommUnication enabled SMart Indoor lightiNg And control SysTEm," in 2023 25th International Conference on Advanced Communication Technology (ICACT), 2023.
[18] M. G. Craford, "From Holonyak to Today," Proceedings of the IEEE, vol. 101, no. 10, pp. 2170-2175, 2013.
[19] 陳學仕, “半導體膠體量子點之未來應用-白光LED,” 第冊24, 編號 6, pp. 66-75, 2005.
[20] T. Komine, M. Nakagawa, "Fundamental analysis for visible-light communication system using LED lights," IEEE Transactions on Consumer Electronics, vol. 50, no. 1, pp. 100-107, 2004.
[21] 南宮簫笛哥, "憑什麼得諾貝爾獎？要你看到藍光LED的與眾不同," 泛科學, 2015. [Online]. Available: https://pansci.asia/archives/82526. [Accessed 18 5 2023].
[22] 良品工研所, "LED 是什麼，又是如何發光的？完整解析 LED 原理、運用和類型," 良品工研所, 2023. [Online]. Available: https://www.ezneering.com/led-%E6%98%AF%E4%BB%80%E9%BA%BC%EF%BC%8C%E5%8F%88%E6%98%AF%E5%A6%82%E4%BD%95%E7%99%BC%E5%85%89%E7%9A%84%EF%BC%9F%E5%AE%8C%E6%95%B4%E8%A7%A3%E6%9E%90-led-%E5%8E%9F%E7%90%86%E3%80%81%E9%81%8B%E7%94%A8/. [Accessed 18 5 2023].
[23] lucychang, "淺談LED產生有色光的方法," 2008. [Online]. Available: https://www.ledinside.com.tw/knowledge/20080430-5210.html. [Accessed 18 5 2023].
[24] R.F., "RGB-LED背光太貴？W-LED太遜！那麼GB-LED如何？," 電腦王, 2014. [Online]. Available: https://www.techbang.com/posts/17100-rgb-led-backlight-is-too-expensive-w-led-taixun-so-how-do-gb-led. [Accessed 18 5 2023].
[25] Jose Arasa, Esther Oteo, José Fernández-Dorado, P. Blanco, Cata Pizarro, José A. Díaz, "New iterative flux based in the design strategy for freeform surfaces generation for LED lighting technology," in Proceedings of SPIE - The International Society for Optical Engineering, 2011.
[26] Enlitechnology, "Quantum Efficiency｜Definition, Equation, Application, Calculating," Enlitechnology, 2021. [Online]. Available: https://enlitechnology.com/blog/qe/quantum-efficiency-01/. [Accessed 20 5 2023].
[27] Enlitechnology, "Brief Introduction and Guidance of Characterization for Photodiodes," Enlitechnology, 2022. [Online]. Available: https://enlitechnology.com/blog/pd/photodetector-01/. [Accessed 20 5 2023].
[28] 耿繼業, 何建娃, 幾何光學(第四版), 新北市土城區忠義路21號: 全華圖書, 2013.
[29] E. Hecht, Optics 5th, Upper Saddle River, New Jersey: Pearson Education Limited, 2017.
[30] 德鍵電子工業股份有限公司, "CDS 光敏電阻器 (PGM)," 2019. [Online].Available:http://www.token.com.tw/big5/pdf/resistor/b5_cds_resistor_pgm.pdf. [Accessed 24 5 2023].

全文公開日期 2028/08/16 (校內網路)
全文公開日期 2028/08/16 (校外網路)
全文公開日期 2028/08/16 (國家圖書館：臺灣博碩士論文系統)

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