Littérature scientifique sur le sujet « LED STREETLIGHT »
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Articles de revues sur le sujet "LED STREETLIGHT"
Zhang, Yuan Yuan, Xiao Fei Lu, Rong Cai, Jie Gong, Shan Liu et Jian Yu Bao. « Design of an Intelligent Solar-LED Streetlight ». Applied Mechanics and Materials 548-549 (avril 2014) : 873–79. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.873.
Texte intégralBeckwith, Dana, Xiaoping Zhang, Edward Smalley, Lok Chan et Mark Yand. « LED Streetlight Application Assessment Project ». Transportation Research Record : Journal of the Transportation Research Board 2250, no 1 (janvier 2011) : 65–75. http://dx.doi.org/10.3141/2250-09.
Texte intégralCheng, Chang, Cheng, Chang, Chung et Chang. « A Single-Stage LED Streetlight Driver with Soft-Switching and Interleaved PFC Features ». Electronics 8, no 8 (18 août 2019) : 911. http://dx.doi.org/10.3390/electronics8080911.
Texte intégralCheng, Chun-An, Chien-Hsuan Chang, Hung-Liang Cheng, En-Chih Chang, You-Ruei Lin et Long-Fu Lan. « A Novel Light-Emitting Diode Streetlight Driver Circuit Applied to a Direct Current-Input Voltage Source ». Sustainability 15, no 14 (12 juillet 2023) : 10934. http://dx.doi.org/10.3390/su151410934.
Texte intégralCheng, Chun-An, Hung-Liang Cheng, Chien-Hsuan Chang, En-Chih Chang, Zheng-You Kuo, Cheng-Kuan Lin et Sheng-Hong Hou. « An AC-DC LED Integrated Streetlight Driver with Power Factor Correction and Soft-Switching Functions ». Sustainability 15, no 13 (5 juillet 2023) : 10579. http://dx.doi.org/10.3390/su151310579.
Texte intégralVitali, D., F. Garbuglia, V. D’Alessandro et R. Ricci. « The renewable energy in a led standalone streetlight ». International Journal of Energy Production and Management 2, no 1 (1 janvier 2017) : 118–28. http://dx.doi.org/10.2495/eq-v2-n1-118-128.
Texte intégralVitali, D., F. Garbuglia, V. D’Alessandro et R. Ricci. « The renewable energy in a led standalone streetlight ». International Journal of Energy Production and Management 2, no 1 (1 janvier 2017) : 118–29. http://dx.doi.org/10.2495/eq-v2-n1-118-129.
Texte intégralShin, Wang-Soo, Seung-Min Lee, Beom-Su Kim et Dae-Hee Park. « 150 W LED Streetlight Optimal Design Using 21 W LED Engine ». Journal of the Korean Institute of Electrical and Electronic Material Engineers 29, no 1 (1 janvier 2016) : 62–67. http://dx.doi.org/10.4313/jkem.2016.29.1.62.
Texte intégralWood, Joanne M., Gillian Isoardi, Alex Black et Ian Cowling. « Night-time driving visibility associated with LED streetlight dimming ». Accident Analysis & ; Prevention 121 (décembre 2018) : 295–300. http://dx.doi.org/10.1016/j.aap.2018.08.023.
Texte intégralPark, Dae-Su, et Sung-Chul Oh. « Development of Solar Power System of Driving a Hybrid LED Streetlight ». Journal of the Korea Academia-Industrial cooperation Society 13, no 12 (31 décembre 2012) : 6006–12. http://dx.doi.org/10.5762/kais.2012.13.12.6006.
Texte intégralThèses sur le sujet "LED STREETLIGHT"
McCarthy, Tom. « Automatiserad gatubelysning baserad på omgivningens ljusstyrka : Hur ljussensorteknik kan minska energianvändningen för utomhusbelysning ». Thesis, KTH, Hälsoinformatik och logistik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302562.
Texte intégralThe goal of this thesis was to investigate how individual streetlights could be equipped with light sensor technology to apply an automatic dimmer function with the purpose of reducing energy usage. Studies show that road and streetlights in Sweden accounted for 626 GWh during the year 2016 and that a large portion of the lights still consists of energy demanding high pressure sodium lamps. Reports also show that energy efficient LED is becoming more and more common as an alternative to high pressure lamps. The goal was to develop a prototype for LED lighting with the function to control the LED’s to be off when the surrounding light levels are high and to dynamically increase the output power when the surroundings light level go down. Each light sensor reads an analog value which is interpreted by a micro controller that sends a pulse width modulated signal to control the LED power output. The finished prototype worked satisfactory and according to the set goals of the thesis. Generally, the thesis showed that extensive research is needed before the prototype could be implemented in real life. The prototype also needs to be tested and calibrated in an outdoor environment with day light.
Weng, Hua-xiu, et 翁花秀. « Optical Lens Design for LED Streetlight ». Thesis, 2011. http://ndltd.ncl.edu.tw/handle/19890276965900852143.
Texte intégral國立臺南大學
通訊工程研究所碩士班
99
In this paper, we proposed and designed the lens for light emitting diode (LED) street lights by optical designing software Trace Pro which provided a platform for us to comprehend how the rays go forward through lens and roadway simulation software dialux, where dialux software is used to assess the average dialux lighting and uniformity. Many LED street lamps used matrix array, which has many disadvantage like circuit design problems. We used multi-chip on lead frame, that is, single module high power LED (140W) package design, which can reduce size of streetlight, lessen the complexity for lens'' designing and reduce cost. We probe three kinds of lens to compare the light intensity far field angle and illumination. With the basis of optical design and LED lights can achieve high output efficiency until 0.857; high uniformity from 0.587 to 0.753, the average illumination from 19 lx to 21 lx and approach of batwing far field beam angle distribution can be achieved.
Tsai, Ming-Jiun, et 蔡名峻. « Energy-saving Control System for LED Streetlight ». Thesis, 2014. http://ndltd.ncl.edu.tw/handle/40998610020810829178.
Texte intégral國立高雄應用科技大學
電機工程系博碩士班
103
Nowadays, with the environmental problems such as imminent exhaustion of fossil energy and increasingly serious global warming make the concept of environmental protection about energy conservation, and carbon emission reduction has been taken seriously, and many energy-saving systems have been proposed in various fields with the trend of energy conservation and carbon emission reduction. Furthermore, there are a lot of energy-saving technologies and patents of "road lighting", which are closely linked with people's daily life. In order to achieve the goal such as energy conservation and carbon emission reduction, those technologies and patents recommend reducing unnecessary power consumption by adjusting the brightness of streetlight. However, most of energy-saving streetlight systems merely focus on their energy-saving function, but neglect the optimal opportunity of using ofenergy-saving streetlight system, even ignore the problem that the energy-saving streetlight system may cause driver or road user to produce a phenomenon of visual fatigue, which may further lead to a traffic accident. In order to mitigate the foregoing disadvantages, this thesis constructs an LED streetlight control system that not only achieves energy conservation, carbon emission reduction, and environmental protection but also considers the traffic safety of drivers and road users. This system also makes the energy-saving streetlight work at the appropriate time to extend the life of streetlight and control system.
Wu, Yu-xian, et 吳禹賢. « Secondary Optical Lens Design of LED Streetlight ». Thesis, 2011. http://ndltd.ncl.edu.tw/handle/32165970645476806197.
Texte intégral國立臺南大學
電機工程研究所
99
In this study, the street lamp with combining the multi-chip on board(MCOB) of LED light source and the freeform lens were proposed and simulated. In order to prevent two adjacent luminaries from generating strong brightness contrast on the road surface, i.e., the Zebra effect (repeated bright and dark regions). We design a freeform lens which can provide that the light intensity is good batwing distribution with light intensity about 3000 cd at the middle and 7000 cd at 60 deg. This indicates that a uniform and wide illumination area on whole road surface can be achieved. The uniformity values are 0.723, 0.866, and 0.875 for three basic placement of single-sided, zigzag, and opposite, respectively. These results suggest that the lamp installation numbers can be eliminated, and can be reduced thermal management.
SYU, YI-CHIEH, et 許逸傑. « Realization Study of Photovoltaic LED Streetlight Driver ». Thesis, 2013. http://ndltd.ncl.edu.tw/handle/42764806464392723825.
Texte intégral中原大學
電機工程研究所
101
This thesis aims to combine photovoltaic (PV) charging system with an LLC resonant converter to achieve PV LED Street-lighting system without electrolytic capacitors. In control, the study using digital controller MCU to replace hardware components successfully attains digital control for maximum power point tracking (MPPT), battery management and lighting control. Based on the concept of energy saving, the system function and efficiency in study are considered from the PV panels through MPPT and battery charging management to the design of LLC converter. Finally, a prototype of 50W PV LED street-light without electrolytic capacitors is conducted to evaluate the LED output luminance and verify the LLC performance compared with the theoretical analysis.
SINGH, JASPREET. « PV BASED LED STREETLIGHT & ; WATER PUMPING SYSTEM ». Thesis, 2018. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16269.
Texte intégralHui-ZhiChen et 陳蕙質. « Design of Optical Lens for LED Streetlight Application ». Thesis, 2011. http://ndltd.ncl.edu.tw/handle/88488905023493167539.
Texte intégralChen, Sheng-wen, et 陳聖文. « Optical Lens Design of LED Luminaire for Streetlight ». Thesis, 2009. http://ndltd.ncl.edu.tw/handle/45477905720539117139.
Texte intégral國立臺灣科技大學
電機工程系
97
This thesis studies optical lens design of the LED luminaries for streetlights. In the same structure, only by replacing the luminaire lens to achieve different optical properties of the light distribution curve (short, medium, long distribution). First, the road lighting specifications has been surveyed as the performance index of the luminaire. Next, To define the final version of the institute to luminaire size by consolidating the structure of LED luminaire which had been marketed. Uniform optical properties of luminaire with the light distribution curve for the spindle, By combining the optical theorems and the angle of light beam energy distribution. The optical software, TracePro, is used to simulate luminous distribution of the luminaires. Then, executing the simulation of road lighting by using the software, DIALux, to assess the average illumination and uniformity. Simulatity results validate the theoretical analysis. The study can be employed in the optical lens design of the LED luminaries for streetlights in the future.
Chen, Fu-Min, et 陳富民. « Thermal Analysis of High Power LED Streetlight Module ». Thesis, 2009. http://ndltd.ncl.edu.tw/handle/53414402171067152112.
Texte intégral國立屏東科技大學
機械工程系所
97
This study reports on thermal analysis of the LED module and the cooling module of the high power LED streetlight module, respectively. By the simulation results compared with the experimental results, the thermal behavior of each module is observed. According to the simulation temperature values of each module, we proposed that various ways decreased the temperature values of the modules. In the study, we simulated temperature flied of each module by using ANSYS 8.0 software. By the boundary conditions of each module are defined that there are constant power and free convection. The analysis results of each module are solved by finite element method that there are temperature distribution, thermal flux, thermal gradient and heat flow. For experiment, we are operating each module for a long time in normal ambient temperature and atmosphere. When the temperature of each module is steady state, we measured the temperature of each module by using the thermography and the infra-red thermometer. The temperature results of each module shown, the results of the cooling module is made that the simulation value is 46.02 ℃ and the experimental value is 45.5 ℃. The results of the LED module is made that the simulation value is 101.33 ℃ and the experimental value is 100.7 ℃. After the simulation results are compared with the experimental results, The Error range of the LED module is within 2 % and the cooling module is within 3.5 %. For simulation temperature values, we proposed three ways that the temperature of each module is decrease. The better way is proposed by comparing the three ways. The temperature decrease rate of the LED module is about 3.45 % by the thickness of aluminum substrate increased 1 mm. The rate of the cooling module is about 6.2 % by installing the copper heat slug.
Wang, Wan Ling, et 王琬伶. « Design and Analysis of Heat Dissipation Configuration of LED Streetlight Modules ». Thesis, 2015. http://ndltd.ncl.edu.tw/handle/10240737558794320416.
Texte intégral亞東技術學院
資訊與通訊工程研究所
103
LED is a semiconductor light emitting component which has many advantages such as high efficiency on illumination, low power consumption, high reliability, small size, and rapid turn-on. LED is applied in various electronics products. In recent decade, LED technology is now can be used as general lighting market. But LED is also constrained by its characteristics. Its lifetime and reliability can be lowered at over temperature operation. So the design of thermal solution is one of the most important issue when we develop a new LED lighting product. This study is to test performance change, such as correlated color temperature, luminous flux, and thermal gradient of a LED streetlight module by different heat dissipation configurations which set plate-fin and polymerizable liquid matrix thermal conductive material (thermal grease) as variants. Then we analyze the results from instruments by four pairs of experimental variants. Three factors are monitored in this research: (1) Light decay ratio (%) (2) Color shift during a period (3) Thermal gradient of the LED streetlight module. We summarize these factors and monitored results of thermal gradient differences. Furthermore, we test a LED streetlight module with long term burning condition and find out the module contains plate-fins and thermal grease performs better than other three configurations. The light decay ratio of the LED streetlight module is 87.6%, and the color shift is 2.5%. In order to verify the results of this thesis, we compare the results to other previous researches. The main factors make effect on thermal dissipation are the distance, height, length, thickness, and surface area of the plate-fins. An additional electrical fan can also help on the thermal issue of a LED streetlight module. This research focuses on how much can a LED streetlight module can be effected by the combination between plate-fins and thermal grease. With certain optical and thermal measurements, we investigate the physical changes by integrated sphere, T type thermocouple, and IR thermometer. By record of the data points on the LED streetlight module, we understand the trend of how the factors make effect on the performance of a LED streetlight module. Summarily, a well-designed thermal dissipation configuration can lower the average temperature on a LED streetlight module, then improves on the color shift effect and increases total efficiency of a LED streetlight. 【Keywords】：LED, Luminous Flux, CCT, Thermal dissipation analysis
Livres sur le sujet "LED STREETLIGHT"
Bank, Asian Development. LED Street Lighting Best Practices : Lessons Learned from the Pilot LED Municipal Streetlight and PLN Substation Retrofit Project in Indonesia. Asian Development Bank, 2017.
Trouver le texte intégralChapitres de livres sur le sujet "LED STREETLIGHT"
Oh, Sun Jin. « Performance Evaluation of a LED-IT-Sensor Integrated Streetlight System in USN ». Dans Convergence and Hybrid Information Technology, 680–90. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-32692-9_85.
Texte intégralGautam, Ruchi, et Harpreet Kaur Channi. « Energy Consumption by Solar LED Streetlights in Domestic Application ». Dans Studies in Infrastructure and Control, 213–21. Singapore : Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8963-6_20.
Texte intégralYan, X., G. Li et Y. Geng. « Design of hybrid energy storage in solar LED streetlight ». Dans Frontiers of Energy and Environmental Engineering, 797–800. CRC Press, 2012. http://dx.doi.org/10.1201/b13718-186.
Texte intégralVisconti, Paolo, Daniele Romanello, Giovanni Zizzari, Vito Ventura et Giorgio Cavalera. « Design, Measurements and Characterization of Smart Electronic Board for PV Streetlight based on LED and High Intensity Discharge Lamps ». Dans Advanced Instrument Engineering, 153–65. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-4165-5.ch012.
Texte intégralRamesh, B. K., G. Venkatesan et J. Thirumal. « Sustainable Development in LED Lights With Air Pollution ». Dans Global Perspectives on Air Pollution Prevention and Control System Design, 133–41. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7289-3.ch005.
Texte intégralHart, D. G. « Civic Uplift ». Dans Benjamin Franklin, 111–27. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198788997.003.0007.
Texte intégralActes de conférences sur le sujet "LED STREETLIGHT"
Huang, Jian. « Isolated Streetlight LED Driver Design ». Dans 2017 5th International Conference on Frontiers of Manufacturing Science and Measuring Technology (FMSMT 2017). Paris, France : Atlantis Press, 2017. http://dx.doi.org/10.2991/fmsmt-17.2017.139.
Texte intégralJha, Aman, Manoj Kumar, Jitendra Jain et Indar Prakash Singhal. « Smart solar hybrid LED streetlight ». Dans 2017 Recent Developments in Control, Automation & Power Engineering (RDCAPE). IEEE, 2017. http://dx.doi.org/10.1109/rdcape.2017.8358229.
Texte intégralSingh, Anand, Priyanka Marathey et Indrajit Mukhopadhyay. « Energy positive solar LED streetlight system ». Dans 2017 International Conference on Energy, Communication, Data Analytics and Soft Computing (ICECDS). IEEE, 2017. http://dx.doi.org/10.1109/icecds.2017.8389541.
Texte intégralZhang, Jingyi, Meichen Zhu, Changzhong Hao, Jianqiao Tang et Qing Yang. « Reliability analysis of high-power LED streetlight ». Dans 2012 9th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD). IEEE, 2012. http://dx.doi.org/10.1109/fskd.2012.6234363.
Texte intégralAoyama, Yuichi, et Toshiaki Yachi. « An LED Module Array System Designed for Streetlight Use ». Dans 2008 IEEE Energy 2030 Conference (Energy). IEEE, 2008. http://dx.doi.org/10.1109/energy.2008.4780996.
Texte intégralGapit, Marina, Husam I. Shaheen et Vinko Lešić. « Adaptable Simulation Environment for LED Streetlight Dimming Control System ». Dans 2023 IEEE International Conference on Industrial Technology (ICIT). IEEE, 2023. http://dx.doi.org/10.1109/icit58465.2023.10143088.
Texte intégralHongyu Tang, Dongzhe Li, Meng Pan, Tong Yang, Cadmus Yuan et Xuejun Fan. « Thermal analysis and optimization design of LED streetlight module ». Dans 2013 10th China International Forum on Solid State Lighting (ChinaSSL). IEEE, 2013. http://dx.doi.org/10.1109/sslchina.2013.7177346.
Texte intégralBeckwith, Dana, Edward Smalley, Mark Yand, Lok Chan et Xiaoping Zhang. « LED Streetlight Application Assessment Project Pilot Study in Seattle, WA ». Dans Green Streets and Highways Conference 2010. Reston, VA : American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41148(389)19.
Texte intégralChen, Yi-Hua, et Wan-Ling Wang. « Design and analysis of heat dissipation configuration of LED streetlight modules ». Dans 2015 International Conference on Mechanics and Mechatronics (ICMM2015). WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814699143_0068.
Texte intégralJha, Aman, et Manoj Kumar. « Improved Power Quality LED Driver with SELV Norms for Streetlight Application ». Dans 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES). IEEE, 2018. http://dx.doi.org/10.1109/pedes.2018.8707878.
Texte intégralRapports d'organisations sur le sujet "LED STREETLIGHT"
Hertel, Thomas, et Cicero Zanetti De Lima. Climate Impacts on Agriculture : Searching for Keys under the Streetlight. GTAP Working Paper, mai 2020. http://dx.doi.org/10.21642/gtap.wp86.
Texte intégral