{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T22:23:40Z","timestamp":1772835820114,"version":"3.50.1"},"reference-count":49,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2024,5,21]],"date-time":"2024-05-21T00:00:00Z","timestamp":1716249600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"University of Pernambuco and Funda\u00e7\u00e3o de Amparo \u00e0 Ci\u00eancia e Tecnologia do Estado de Pernambuco (FACEPE)","award":["001"],"award-info":[{"award-number":["001"]}]},{"name":"Higher Education Personnel (CAPES)","award":["001"],"award-info":[{"award-number":["001"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A solar position sensor is an essential optoelectronic device used to monitor the sun\u2019s position in solar tracking systems. In closed-loop systems, this sensor is responsible for providing feedback signals to the control system, allowing motor adjustments to optimize the angle of incidence and minimize positioning errors. The accuracy required for solar tracking systems varies depending on the specific photovoltaic concentration. In the case of the concentrator photovoltaic (CPV), it is normally essential to track the sun with a position error of less than \u00b10.6\u00b0. To achieve such precision, a proposed sensor configuration composed of low-cost embedded electronics and multifiber optical cable is subjected to characterization through a series of measurements covering range, sensitivity, and resolution. These measurements are performed in controlled indoor environments as well as outdoor conditions. The results obtained exhibit a resolution of 2.6\u00d710\u22123 degrees when the sensor is illuminated within its designated field of view of \u00b10.1\u00b0, particularly in external conditions. Considering the performance demonstrated by the proposed solar position sensor, coupled with its straightforward modeling and assembly compared to position sensors documented in the literature, it emerges as a promising candidate for integration into solar tracking systems.<\/jats:p>","DOI":"10.3390\/s24113269","type":"journal-article","created":{"date-parts":[[2024,5,21]],"date-time":"2024-05-21T06:50:52Z","timestamp":1716274252000},"page":"3269","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["A Proposal for a Solar Position Sensor System with Multifiber Optical Cable"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1100-4248","authenticated-orcid":false,"given":"Fernanda","family":"Oliveira","sequence":"first","affiliation":[{"name":"Departament of Electrical Energy Systems, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2752-7032","authenticated-orcid":false,"given":"Gustavo","family":"Cruz","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Systems Engineering, Polytechnic School of Pernambuco, University of Pernambuco, Recife 50720-001, PE, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1570-1024","authenticated-orcid":false,"given":"Maria","family":"Barbosa","sequence":"additional","affiliation":[{"name":"Polytechnic School of Pernambuco, Recife 50720-001, PE, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-3809-5279","authenticated-orcid":false,"given":"Fernando","family":"Junior","sequence":"additional","affiliation":[{"name":"Polytechnic School of Pernambuco, Recife 50720-001, PE, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9870-2286","authenticated-orcid":false,"given":"Ricardo","family":"Lima","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Systems Engineering, Polytechnic School of Pernambuco, University of Pernambuco, Recife 50720-001, PE, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5199-9390","authenticated-orcid":false,"given":"Luis","family":"G\u00f3mez-Malag\u00f3n","sequence":"additional","affiliation":[{"name":"Postgraduate Program in Systems Engineering, Polytechnic School of Pernambuco, University of Pernambuco, Recife 50720-001, PE, Brazil"}]}],"member":"1968","published-online":{"date-parts":[[2024,5,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1016\/j.solener.2020.10.071","article-title":"Control algorithms applied to active solar tracking systems: A review","volume":"212","author":"Rodrigo","year":"2020","journal-title":"Sol. Energy"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"465","DOI":"10.1016\/S0038-092X(96)00135-1","article-title":"Design and construction of a one-axis sun-tracking system","volume":"57","author":"Kalogirou","year":"1996","journal-title":"Sol. Energy"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"de S\u00e1 Campos, M.H., and Tiba, C. (2021). npTrack: A n-position single axis solar tracker model for optimized energy collection. Energies, 14.","DOI":"10.3390\/en14040925"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"13424","DOI":"10.1002\/er.8052","article-title":"Performance assessment of a dual-axis solar tracker for concentrator photovoltaic systems","volume":"46","author":"Badr","year":"2022","journal-title":"Int. J. Energy Res."},{"key":"ref_5","unstructured":"Luque-Heredia, I., Qu\u00e9m\u00e9r\u00e9, G., Cervantes, R., Laurent, O., Chiappori, E., and Chong, J.Y. (2012). Next Generation of Photovoltaics: New Concepts, Springer."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"012052","DOI":"10.1088\/1757-899X\/767\/1\/012052","article-title":"Technologies of solar tracking systems: A review","volume":"Volume 767","author":"Amelia","year":"2020","journal-title":"Proceedings of the IOP Conference Series: Materials Science and Engineering"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"3875","DOI":"10.3390\/s90503875","article-title":"Sun tracking systems: A review","volume":"9","author":"Lee","year":"2009","journal-title":"Sensors"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"14915","DOI":"10.1109\/JSEN.2021.3072876","article-title":"A new design of dual-axis solar tracking system with LDR sensors by using the wheatstone bridge circuit","volume":"21","author":"Saeedi","year":"2021","journal-title":"IEEE Sens. J."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"2411","DOI":"10.1016\/j.renene.2005.11.008","article-title":"Design and construction of a two-axis Sun tracking system for parabolic trough collector (PTC) efficiency improvement","volume":"31","author":"Bakos","year":"2006","journal-title":"Renew. Energy"},{"key":"ref_10","first-page":"72","article-title":"Solar tracking system\u2014A review","volume":"10","author":"Racharla","year":"2017","journal-title":"Int. J. Sustain. Eng."},{"key":"ref_11","first-page":"973","article-title":"Adaptive compensation technique for CCD signal sampling positions in high-resolution remote sensing cameras","volume":"28","author":"Sun","year":"2020","journal-title":"Guangxue Jingmi Gongcheng\/Opt. Precis. Eng."},{"key":"ref_12","first-page":"19","article-title":"Error source analysis and compensation in test chain for dual axial analog sun sensor","volume":"39","author":"Xu","year":"2019","journal-title":"Chin. Space Sci. Technol."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"01003","DOI":"10.1051\/e3sconf\/202019101003","article-title":"Solar Panel Tracking System Using Optical Fiber","volume":"Volume 191","author":"Szolga","year":"2020","journal-title":"Proceedings of the E3S Web of Conferences"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"24","DOI":"10.34133\/space.0024","article-title":"Deep Neural Network-Based 4-Quadrant Analog Sun Sensor Calibration","volume":"3","author":"Sun","year":"2023","journal-title":"Space Sci. Technol."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Diriker, F.K., Frias, A., Keum, K.H., and Lee, R.S. (2021). Improved accuracy of a single-slit digital sun sensor design for cubesat application using sub-pixel interpolation. Sensors, 21.","DOI":"10.3390\/s21041472"},{"key":"ref_16","first-page":"1758","article-title":"UFSS (ultra fine sun sensor): CCD sun sensor with sub-arc second accuracy for the next solar observing satellite SOLAR-C","volume":"Volume 11180","author":"Tsuno","year":"2019","journal-title":"Proceedings of the International Conference on Space Optics\u2014ICSO 2018"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"2128","DOI":"10.1016\/j.rser.2017.08.040","article-title":"A review on sun position sensors used in solar applications","volume":"82","year":"2018","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"112514","DOI":"10.1016\/j.rser.2022.112514","article-title":"Review on fibre-optic-based daylight enhancement systems in buildings","volume":"163","author":"Sreelakshmi","year":"2022","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"525","DOI":"10.1007\/s11082-023-04608-z","article-title":"Advanced day lighting system using fiber optics","volume":"55","author":"Kavitha","year":"2023","journal-title":"Opt. Quantum Electron."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"113399","DOI":"10.1016\/j.enconman.2020.113399","article-title":"Techno-economic evaluation of an optical fiber based hybrid solar lighting system","volume":"225","author":"Lv","year":"2020","journal-title":"Energy Convers. Manag."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"103248","DOI":"10.1016\/j.jece.2019.103248","article-title":"Photocatalytic activity improvement and application of UV-TiO2 photocatalysis in textile wastewater treatment: A review","volume":"7","author":"Kader","year":"2019","journal-title":"J. Environ. Chem. Eng."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"124163","DOI":"10.1016\/j.fuel.2022.124163","article-title":"Construction of Bi-assisted modified CdS\/TiO2 nanotube arrays with ternary S-scheme heterojunction for photocatalytic wastewater treatment and hydrogen production","volume":"322","author":"Wang","year":"2022","journal-title":"Fuel"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1335","DOI":"10.1007\/s10311-020-01141-3","article-title":"Photocatalytic optical fibers for degradation of organic pollutants in wastewater: A review","volume":"19","author":"Wu","year":"2021","journal-title":"Environ. Chem. Lett."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"661","DOI":"10.1007\/978-3-642-21765-4_82","article-title":"Design and Application of a New Sun Sensor Based on Optical Fiber","volume":"Volume 2","author":"Wang","year":"2011","journal-title":"Proceedings of the Electrical Engineering and Control: Selected Papers from the 2011 International Conference on Electric and Electronics (EEIC 2011)"},{"key":"ref_25","unstructured":"Rativa, D., Valente, D., G\u00f3mez-Malag\u00f3n, L.A., and Vohnsen, B. (2015). Frontiers in Optics, Optica Publishing Group."},{"key":"ref_26","unstructured":"Leandro, D., Bravo, M., Judez, A., Mari\u00f1elarena, J., Falcone, F., Loayssa, A., Lopez-Amo, M., Moriana, I., and Jimenez, S. (2020). Optical Fiber Sensors, Optica Publishing Group."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"93","DOI":"10.1016\/j.solener.2020.11.061","article-title":"Development of an extremely concentrated solar energy delivery system using silica optical fiber bundle for deployment of solar energy: Daylighting to photocatalytic wastewater treatment","volume":"214","author":"Roy","year":"2021","journal-title":"Sol. Energy"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"917","DOI":"10.1109\/JSEN.2018.2879460","article-title":"A filtered sun sensor for solar tracking in HCPV and CSP systems","volume":"19","author":"Diaz","year":"2018","journal-title":"IEEE Sens. J."},{"key":"ref_29","unstructured":"Saleh, B.E., and Teich, M.C. (2019). Fundamentals of Photonics, John Wiley & Sons."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"42019","DOI":"10.2351\/1.5123051","article-title":"Tailored focal beam shaping and its application in laser material processing","volume":"31","author":"Kaldun","year":"2019","journal-title":"J. Laser Appl."},{"key":"ref_31","first-page":"1067604","article-title":"Field of view: Not just a number","volume":"10676","author":"Wheelwright","year":"2018","journal-title":"Digit. Opt. Immersive Displays"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Schumacher, N., Schmidt, M., Reer, R., and Braumann, K.M. (2019). Peripheral vision tests in sports: Training effects and reliability of peripheral perception test. Int. J. Environ. Res. Public Health, 16.","DOI":"10.3390\/ijerph16245001"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Sanyal, A., Mohanta, J., and Faiyaz Ahmed, M. (2024). Development of a dual-axis solar tracker for efficient sun energy harvesting. Proc. Inst. Mech. Eng. Part E J. Process. Mech. Eng.","DOI":"10.1177\/09544089241241453"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Myers, D. (2012). Solar Radiation Resource Assessment for Renewable Energy Conversion, Technical Report.","DOI":"10.1016\/B978-0-08-087872-0.00112-8"},{"key":"ref_35","unstructured":"Boyes, W. (2009). Instrumentation Reference Book, Butterworth-Heinemann."},{"key":"ref_36","unstructured":"Oliveira, F.T.V., and G\u00f3mez-Malag\u00f3n, L.A. (2016, January 3\u20137). Caracteriza\u00e7\u00e3o de um fotodiodo de quatro quadrantes para seguidores solares. Proceedings of the XXI Congresso Brasileiro de Autom\u00e1tica\u2014CBA, Vit\u00f3ria, Brazil. ISSN 2525-8311."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"33030","DOI":"10.1117\/1.JEI.22.3.033030","article-title":"Low-power high-accuracy micro-digital sun sensor by means of a CMOS image sensor","volume":"22","author":"Xie","year":"2013","journal-title":"J. Electron. Imaging"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"114268","DOI":"10.1016\/j.sna.2023.114268","article-title":"Microfabricated albedo insensitive sun position sensor system in silicon carbide with integrated 3D optics and CMOS electronics","volume":"354","author":"Romijn","year":"2023","journal-title":"Sens. Actuators A Phys."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1109\/LSENS.2022.3175607","article-title":"Angle sensitive optical sensor for light source tracker miniaturization","volume":"6","author":"Romijn","year":"2022","journal-title":"IEEE Sens. Lett."},{"key":"ref_40","unstructured":"(2024, April 30). Available online: https:\/\/solar-mems.com\/wp-content\/uploads\/2023\/12\/ISSTX-03-MAN-104-Technical-Specifications.pdf."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"331","DOI":"10.1016\/j.solener.2014.07.021","article-title":"Daylighting system via fibers based on two-stage sun-tracking model","volume":"108","author":"Song","year":"2014","journal-title":"Sol. Energy"},{"key":"ref_42","first-page":"706","article-title":"A sun tracking error monitor for photovoltaic concentrators","volume":"Volume 1","author":"Cervantes","year":"2006","journal-title":"Proceedings of the 2006 IEEE 4th World Conference on Photovoltaic Energy Conference"},{"key":"ref_43","doi-asserted-by":"crossref","unstructured":"Haryanti, M., Halim, A., and Yusuf, A. (2014, January 27\u201328). Development of two axis solar tracking using five photodiodes. Proceedings of the 2014 Electrical Power, Electronics, Communicatons, Control and Informatics Seminar (EECCIS), Malang, Indonesia.","DOI":"10.1109\/EECCIS.2014.7003716"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"689","DOI":"10.1016\/j.renene.2016.06.022","article-title":"Cascade closed-loop control of solar trackers applied to HCPV systems","volume":"97","author":"Garrido","year":"2016","journal-title":"Renew. Energy"},{"key":"ref_45","doi-asserted-by":"crossref","unstructured":"Welch, D., and Christen, J.B. (2015, January 24\u201327). MEMS optical position sensor for sun tracking. Proceedings of the 2015 IEEE International Symposium on Circuits and Systems (ISCAS), Lisbon, Portugal.","DOI":"10.1109\/ISCAS.2015.7169023"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"175","DOI":"10.1016\/j.autcon.2016.10.009","article-title":"Dual-axis sun tracker sensor based on tetrahedron geometry","volume":"73","author":"Away","year":"2017","journal-title":"Autom. Constr."},{"key":"ref_47","first-page":"28","article-title":"Development of a MOEMS sun sensor for space applications","volume":"130","author":"Edoff","year":"2006","journal-title":"Sens. Actuators A Phys."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"980","DOI":"10.3938\/jkps.67.980","article-title":"Development of a hybrid solar tracking device using a GPS and a photo-sensor capable of operating at low solar radiation intensity","volume":"67","author":"Lee","year":"2015","journal-title":"J. Korean Phys. Soc."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"4423","DOI":"10.1109\/JSEN.2014.2331319","article-title":"A hemispherical sun sensor for orientation and geolocation","volume":"14","author":"Barnes","year":"2014","journal-title":"IEEE Sens. J."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/24\/11\/3269\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T14:45:45Z","timestamp":1760107545000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/24\/11\/3269"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,5,21]]},"references-count":49,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2024,6]]}},"alternative-id":["s24113269"],"URL":"https:\/\/doi.org\/10.3390\/s24113269","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,5,21]]}}}