本論文旨在研製一款用於清潔太陽能板髒汙的機器人，此機器人能在太陽能板上依感測器之引導，自動沿著太陽能板邊緣行走，並順著預先規畫好的牛耕田路線，將整塊太陽能板清潔完畢。
機器人以Arduino Mega 2560作為控制中樞，用以處理馬達控制訊號及感測器資訊，搭配VL53L0X飛時測距（ToF）感應模組，作為機器人的防跌落裝置，並使用MPU6050陀螺儀定位機器人的偏擺角，以獲得機器人的方向。
使用設計之長滾刷清洗部件做清潔，搭配噴水之噴頭洗滌太陽能板，機器人後方裝配刮水用之刮刀，將清潔完的部分刮掉殘留的水，達到清潔的效果。
實驗結果數據顯示在太陽能板傾斜0度、5度及10度時，機器人清潔後發電量提升77.6%、58%及73.6%，顯示本研究有助於恢復太陽能板發電效率。

A robot for cleaning solar panels is developed in this research. The cleaning robot can automatically move on the solar panels by a planned path of boustrophedon by sensors to clean the whole area of the panels.
Arduino Mega 2560 is the controller for robot motion and sensor signal processing; a VL53L0X Time-of-Flight (ToF) sensor module is for robot's anti-drop prevention; a MPU6050 gyroscope is for determining the rotation angle of the robot during turning.
The cleaning mechanism includes a long roller brush and water jets for cleaning. A blade wiper behind the robot scrapes off the remaining water from the cleaned part to achieve the cleaning task.
Experimental results show that the robot can move on a solar panel with tilted angles from 0 to 10 degrees. The power generation of solar panels before and after cleaning was measured and compared. The power generation is proportional to solar illuminance as expected. Moreover, the generated powers after panel cleaning by the robot increase 77.6%, 58% and 73.6% for the panel tilted angles of 0, 5, and 10 degrees, respectively. That is, panel cleaning is effective and necessary for power restoration of the solar panels. Thus, the cleaning robot developed successfully achieves the cleaning task for solar panels.

[1] Omur Akyazi, Erdinc Sahin, Timur Ozsoy and Mehmet Algul, “A Solar Panel Cleaning Robot Design and Application,” European Journal of Science and Technology, (Special Issue), pp. 343-348, October 2019
[2] Wallaaldin. Eltayeb, G. Yedukondalu and A. Srinath, “Design and Development of a Cleaning Robot for Solar Panels with Sun Tracking,” Journal of Green Engineering, Vol. 10_10,9517-9532, December 2020
[3] Faridah Hanim Mohd Noh, Muhamad Faizal Yaakub, Ili Najaa Aimi Mohd Nordin, Norain Sahari, Nor Aira Zambri, Sim Sy Yi and Muhammad Syukri Mohd Saibon, “Development of Solar Panel Cleaning Robot Using Arduino,” Indonesian Journal of Electrical Engineering and Computer Science, Vol. 19, No. 3, pp. 1245-1250, September 2020
[4] Nawat Ronnaronglit and Noppadol Maneerat, “A Cleaning Robot for Solar Panels,” 2019 5th International Conference on Engineering, Applied Sciences and Technology (ICEAST), pp.1-4, July 2019
[5] G. Aravind, Gautham Vasan, T.S.B. Gowtham Kumar, R. Naresh Balaji and G. Saravana Ilango, “A Control Strategy for an Autonomous Robotic Vacuum Cleaner for Solar Panels,” 2014 Texas Instruments India Educators' Conference (TIIEC), pp.53-61, April 2014
[6] Thanapon Sorndach, Noppadol Pudchuen and Pornsak Srisungsitthisunti, “Rooftop Solar Panel Cleaning Robot Using Omni Wheels,” 2018 2nd International Conference on Engineering Innovation (ICEI), pp.7-12, July 2018
[7] Nurhasliza Hashim, M. N. Mohammed, Rubendren A/L Selvarajan, Salah Al-Zubaidi and Samaher Mohammed, “Study on Solar Panel Cleaning Robot,” 2019 IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS 2019), pp.1-4, July 2019
[8] Thitipong Makmee and Eakkachai Pengwang, “Design and Experiment of Four-side Stretch Sling-based Solar Cleaning Robot,” 2021 7th International Conference on Engineering, Applied Sciences and Technology (ICEAST), pp.182-189, April 2021
[9] Shengzan Yan, Ye Jian and Lijun Xu, “Research on Design of Intelligent Cleaning Robot for Solar Panel,” Proceedings of
The 20th International Conference on Electronic Business, pp. 313-320, December 2020
[10] Amit Kumar Mondal & Kamal Bansal (2015), “A Brief History and Future Aspects in Automatic Cleaning Systems for Solar Photovoltaic Panels,” Advanced Robotics, 2015, Vol.29, No.8, pp. 515-524
[11] Bandam Abhilash and Ashish K Panchal, “Self-Cleaning and Tracking Solar Photovoltaic Panel for Improving Efficiency,” 2016 2nd International Conference on Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB), pp.1-4
[12] Joon Seop Oh, Yoon Ho Choi, Jin Bae Park and Y.F. Zheng, “Complete Coverage Navigation of Cleaning Robots Using Triangular-cell-based Map,” IEEE Transactions on Industrial Electronics, vol. 51, Issue 3, June 2004
[13] Xu Miao, Hyun-Soon Lee and Bo-Yeong Kang, “Multi-Cleaning Robots Using Cleaning Distribution Method Based on Map Decomposition in Large Environments,” IEEE Access, vol. 8, May 2020
[14] Xu Miao, Jaesung Lee and Bo-Yeong Kang, “Scalable Coverage Path Planning for Cleaning Robots Using Rectangular Map Decomposition on Large Environments,” IEEE Access, vol. 6, July 2018
[15] Tsutomu Takeshita, Tetsuo Tomizawa and Akihisa Ohya, “A House Cleaning Robot System -Path indication and Position estimation using ceiling camera,” 2006 SICE-ICASE International Joint Conference, pp.2653-2656, October 2006
[16] Hongmei Zhang, Wei Hong and Mingjie Chen, “A Path Planning Strategy for Intelligent Sweeping Robots,” 2019 IEEE International Conference on Mechatronics and Automation (ICMA), pp.11-15, August 2019
[17] Jeong H. Lee, Jeong S. Choi, Beom H. Lee and Kong W. Lee, “Complete coverage path planning for cleaning task using multiple robots,” 2009 IEEE International Conference on Systems, Man and Cybernetics, pp.3618-3622, October 2009
[18] Adiyabaatar Janchiv, Dugarjav Batsaikhan, Gook hwan Kim and Soon-Geul Lee, “Complete Coverage Path Planning for Multi-robots Based on,” 2011 11th International Conference on Control, Automation and Systems, pp.824-827, October 2011
[19] Wang Meiting, Tan Shili, Ding Junjian and Yan Liwen, “Complete Coverage Path Planning of Wall-Cleaning Robot Using Visual sensor,” 2007 8th International Conference on Electronic Measurement and Instruments, pp.4-159 - 4-164, August 2007
[20] A.S. Darsana and P.S Lal Priya, “Path Planning of an Autonomous Robotic Vehicle for Outdoor Cleaning,” 2018 International Conference on Circuits and Systems in Digital Enterprise Technology (ICCSDET), pp.1-6, December 2018
[21] Qingzeng Ma, Dongbin Zhang, Shuo Jin, Yuan Ren, Wei Cheng and Yanlei Li, “On Path Generation Method for Laser Cleaning Robot Based on Line Structured Light,” 2020 39th Chinese Control Conference (CCC), pp.5953-5957, July 2020
[22] Muhammad Shahin Uddin, Nargis Aktar, Jae Sang Cha and Yeong Min Jang, “Path Mapping and Control of Mobile Cleaning Robot Using LED-ID Network,” 2011 Third International Conference on Ubiquitous and Future Networks (ICUFN), pp.123-126, June 2011
[23] J. Palacin, X. Lasa and S. Marco, “Straight-line Path Following in Cleaning Robots Using Lateral Ultrasonic Sensors,” Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412), pp.1484-1487, May 2003
[24] P. Grunow, P. Clemens, V. Hoffmann, B. Litzenburger and L. Podlowski, “Influence of Micro Cracks in Multi-crystalline Silicon Solar Cells on The Reliability of PV Modules,” 20th European Photovoltaic Solar Energy Conference, June 2005
[25] Andrew M. Gabor, Jason Lincoln, Eric J. Schneller, Hubert Seigneur, Rob Janoch, Andrew Anselmo, Duncan W. J. Harwood, Michael W. Rowell, “Compressive Stress Strategies for Reduction of Cracked Cell Related Degradation Rates in New Solar Panels and Power Recovery in Damaged Solar Panels,” 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), pp. 2820 – 2825, June 2018
[26] Andrew M. Gabor, Rob Janoch, Andrew Anselmo, Jason L Lincoln, Hubert Seigneur and Christian Honeker, “Mechanical Load Testing of Solar Panels — Beyond Certification Testing,” 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), pp.3574-3579, June 2016
[27] Andrew M. Gabor, Rob Janoch, Andrew Anselmo, Jason Lincoln, Eric J. Schneller, Hubert Seigneur, Duncan J. Harwood and Michael W. Rowell, “Mounting Rail Spacers for Improved Solar Panel Durability,” 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), June 2019
[28] Michael Owen-Bellini, Dana B. Sulas-Kern, Greg Perrin, Hannah North, Sergiu Spataru and Peter Hacke, “Methods for In Situ Electroluminescence Imaging of Photovoltaic Modules Under Varying Environmental Conditions,” IEEE Journal of Photovoltaics, Volume: 10, Issue: 5, Sept. 2020
[29] Britny P. Lockridge, Olga Lavrova and William B. Hobbs, “Comparison of Electroluminescence Image Capture Methods,” 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), pp.876-879, June 2016
[30] Takashi Fuyuki, Tsuyoshi Tomimoto, Ayumi Tani and Yasuaki Ishikawa, “On-site Detection of Defective Panels in Mega Solar Systems by Handy Electroluminescence Surveillance,” 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), pp.1-3, June 2015
[31] Andrew M. Gabor and Philip Knodle, “UV Fluorescence for Defect Detection in Residential Solar Panel Systems,” 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), pp.2575-2579, June 2021
[32] 距離測量原理解說http://survey.caece.net/4/A.pdf. 2022.06查詢.
[33] 第二章 三維雷射掃描系統https://ir.nctu.edu.tw/bitstream/11536/72657/4/655804.pdf. 2022.06查詢.
[34] M. S. Amin, M. B. I. Reaz, S. S. Nasir, M. A. S. Bhuiyan, and M.A. M. Ali, "A Novel Vehicle Stationary Detection Utilizing Map Matching and IMU Sensors," The Scientific World Journal, vol.2014, pp. 1-13, 2014.
[35] Md. Saiful Islam, Md. Shajid-Ul-Mahmud, Tariqul Islam, Md. Syedul Amin and Md Hossam-E-Haider, “A Low Cost MEMS and Complementary Filter Based Attitude Heading Reference System (AHRS) for Low Speed Aircraft,” 2016 3rd International Conference on Electrical Engineering and Information Communication Technology (ICEEICT), pp.1-5, September 2016
[36] Titterton, D. H. and Weston, J. L. (1997): Strapdown Inertial Navigation Technology. Peter Peregrinus Ltd.
[37] Roll Pitch Yaw.JPG https://commons.wikimedia.org/wiki/File:Roll_Pitch_Yaw.JPG. 2022.06查詢.
[38] 太陽能發電系統架構圖https://www.cleanenergyreviews.info/blog/mppt-solar-charge-controllers. 2022.05查詢.
[39] 單晶矽太陽能模組https://solar.auo.com/zh-TW/Solar_Module_mono_c_Si_SunVivo/index/PM060MW2. 2022.05查詢.
[40] EL檢測系統架構圖https://www.pvguider.com/3865131449el2729828204.html. 2022.05查詢.
[41] 大功率電源供應器圖https://twcn.rs-online.com/web/p/bench-power-supplies/6736821. 2022.05查詢.
[42] 紅外線攝影機https://buy.mi.com/tw/item/3204700012. 2022.05查詢.
[43] 林譽洋，「果園自動割草機器人之研製」，國立成功大學工學院工程科學系碩士論文，民國109年。
[44] I2C擴充模組https://create.arduino.cc/projecthub/tarantula3/tca9548a-i2c-multiplexer-module-with-arduino-and-nodemcu-3d3313.2022.06查詢.
[45] 清潔刷https://m.buy.mi.com/tw/item/3202800019. 2022.06查詢.