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Статті в журналах з теми "LED STREETLIGHT"
Zhang, Yuan Yuan, Xiao Fei Lu, Rong Cai, Jie Gong, Shan Liu, and Jian Yu Bao. "Design of an Intelligent Solar-LED Streetlight." Applied Mechanics and Materials 548-549 (April 2014): 873–79. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.873.
Повний текст джерелаBeckwith, Dana, Xiaoping Zhang, Edward Smalley, Lok Chan, and Mark Yand. "LED Streetlight Application Assessment Project." Transportation Research Record: Journal of the Transportation Research Board 2250, no. 1 (January 2011): 65–75. http://dx.doi.org/10.3141/2250-09.
Повний текст джерелаCheng, Chang, Cheng, Chang, Chung, and Chang. "A Single-Stage LED Streetlight Driver with Soft-Switching and Interleaved PFC Features." Electronics 8, no. 8 (August 18, 2019): 911. http://dx.doi.org/10.3390/electronics8080911.
Повний текст джерелаCheng, Chun-An, Chien-Hsuan Chang, Hung-Liang Cheng, En-Chih Chang, You-Ruei Lin, and Long-Fu Lan. "A Novel Light-Emitting Diode Streetlight Driver Circuit Applied to a Direct Current-Input Voltage Source." Sustainability 15, no. 14 (July 12, 2023): 10934. http://dx.doi.org/10.3390/su151410934.
Повний текст джерелаCheng, Chun-An, Hung-Liang Cheng, Chien-Hsuan Chang, En-Chih Chang, Zheng-You Kuo, Cheng-Kuan Lin, and Sheng-Hong Hou. "An AC-DC LED Integrated Streetlight Driver with Power Factor Correction and Soft-Switching Functions." Sustainability 15, no. 13 (July 5, 2023): 10579. http://dx.doi.org/10.3390/su151310579.
Повний текст джерелаVitali, D., F. Garbuglia, V. D’Alessandro, and R. Ricci. "The renewable energy in a led standalone streetlight." International Journal of Energy Production and Management 2, no. 1 (January 1, 2017): 118–28. http://dx.doi.org/10.2495/eq-v2-n1-118-128.
Повний текст джерелаVitali, D., F. Garbuglia, V. D’Alessandro, and R. Ricci. "The renewable energy in a led standalone streetlight." International Journal of Energy Production and Management 2, no. 1 (January 1, 2017): 118–29. http://dx.doi.org/10.2495/eq-v2-n1-118-129.
Повний текст джерелаShin, Wang-Soo, Seung-Min Lee, Beom-Su Kim, and 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 (January 1, 2016): 62–67. http://dx.doi.org/10.4313/jkem.2016.29.1.62.
Повний текст джерелаWood, Joanne M., Gillian Isoardi, Alex Black, and Ian Cowling. "Night-time driving visibility associated with LED streetlight dimming." Accident Analysis & Prevention 121 (December 2018): 295–300. http://dx.doi.org/10.1016/j.aap.2018.08.023.
Повний текст джерелаPark, Dae-Su, and 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 (December 31, 2012): 6006–12. http://dx.doi.org/10.5762/kais.2012.13.12.6006.
Повний текст джерелаДисертації з теми "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.
Повний текст джерелаThe 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, and 翁花秀. "Optical Lens Design for LED Streetlight." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/19890276965900852143.
Повний текст джерела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, and 蔡名峻. "Energy-saving Control System for LED Streetlight." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/40998610020810829178.
Повний текст джерела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, and 吳禹賢. "Secondary Optical Lens Design of LED Streetlight." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/32165970645476806197.
Повний текст джерела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, and 許逸傑. "Realization Study of Photovoltaic LED Streetlight Driver." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/42764806464392723825.
Повний текст джерела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.
Повний текст джерелаHui-ZhiChen and 陳蕙質. "Design of Optical Lens for LED Streetlight Application." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/88488905023493167539.
Повний текст джерелаChen, Sheng-wen, and 陳聖文. "Optical Lens Design of LED Luminaire for Streetlight." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/45477905720539117139.
Повний текст джерела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, and 陳富民. "Thermal Analysis of High Power LED Streetlight Module." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/53414402171067152112.
Повний текст джерела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, and 王琬伶. "Design and Analysis of Heat Dissipation Configuration of LED Streetlight Modules." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/10240737558794320416.
Повний текст джерела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
Книги з теми "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.
Знайти повний текст джерелаЧастини книг з теми "LED STREETLIGHT"
Oh, Sun Jin. "Performance Evaluation of a LED-IT-Sensor Integrated Streetlight System in USN." In 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.
Повний текст джерелаGautam, Ruchi, and Harpreet Kaur Channi. "Energy Consumption by Solar LED Streetlights in Domestic Application." In Studies in Infrastructure and Control, 213–21. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8963-6_20.
Повний текст джерелаYan, X., G. Li, and Y. Geng. "Design of hybrid energy storage in solar LED streetlight." In Frontiers of Energy and Environmental Engineering, 797–800. CRC Press, 2012. http://dx.doi.org/10.1201/b13718-186.
Повний текст джерелаVisconti, Paolo, Daniele Romanello, Giovanni Zizzari, Vito Ventura, and Giorgio Cavalera. "Design, Measurements and Characterization of Smart Electronic Board for PV Streetlight based on LED and High Intensity Discharge Lamps." In Advanced Instrument Engineering, 153–65. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-4165-5.ch012.
Повний текст джерелаRamesh, B. K., G. Venkatesan, and J. Thirumal. "Sustainable Development in LED Lights With Air Pollution." In 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.
Повний текст джерелаHart, D. G. "Civic Uplift." In Benjamin Franklin, 111–27. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198788997.003.0007.
Повний текст джерелаТези доповідей конференцій з теми "LED STREETLIGHT"
Huang, Jian. "Isolated Streetlight LED Driver Design." In 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.
Повний текст джерелаJha, Aman, Manoj Kumar, Jitendra Jain, and Indar Prakash Singhal. "Smart solar hybrid LED streetlight." In 2017 Recent Developments in Control, Automation & Power Engineering (RDCAPE). IEEE, 2017. http://dx.doi.org/10.1109/rdcape.2017.8358229.
Повний текст джерелаSingh, Anand, Priyanka Marathey, and Indrajit Mukhopadhyay. "Energy positive solar LED streetlight system." In 2017 International Conference on Energy, Communication, Data Analytics and Soft Computing (ICECDS). IEEE, 2017. http://dx.doi.org/10.1109/icecds.2017.8389541.
Повний текст джерелаZhang, Jingyi, Meichen Zhu, Changzhong Hao, Jianqiao Tang, and Qing Yang. "Reliability analysis of high-power LED streetlight." In 2012 9th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD). IEEE, 2012. http://dx.doi.org/10.1109/fskd.2012.6234363.
Повний текст джерелаAoyama, Yuichi, and Toshiaki Yachi. "An LED Module Array System Designed for Streetlight Use." In 2008 IEEE Energy 2030 Conference (Energy). IEEE, 2008. http://dx.doi.org/10.1109/energy.2008.4780996.
Повний текст джерелаGapit, Marina, Husam I. Shaheen, and Vinko Lešić. "Adaptable Simulation Environment for LED Streetlight Dimming Control System." In 2023 IEEE International Conference on Industrial Technology (ICIT). IEEE, 2023. http://dx.doi.org/10.1109/icit58465.2023.10143088.
Повний текст джерелаHongyu Tang, Dongzhe Li, Meng Pan, Tong Yang, Cadmus Yuan, and Xuejun Fan. "Thermal analysis and optimization design of LED streetlight module." In 2013 10th China International Forum on Solid State Lighting (ChinaSSL). IEEE, 2013. http://dx.doi.org/10.1109/sslchina.2013.7177346.
Повний текст джерелаBeckwith, Dana, Edward Smalley, Mark Yand, Lok Chan, and Xiaoping Zhang. "LED Streetlight Application Assessment Project Pilot Study in Seattle, WA." In Green Streets and Highways Conference 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41148(389)19.
Повний текст джерелаChen, Yi-Hua, and Wan-Ling Wang. "Design and analysis of heat dissipation configuration of LED streetlight modules." In 2015 International Conference on Mechanics and Mechatronics (ICMM2015). WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814699143_0068.
Повний текст джерелаJha, Aman, and Manoj Kumar. "Improved Power Quality LED Driver with SELV Norms for Streetlight Application." In 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES). IEEE, 2018. http://dx.doi.org/10.1109/pedes.2018.8707878.
Повний текст джерелаЗвіти організацій з теми "LED STREETLIGHT"
Hertel, Thomas, and Cicero Zanetti De Lima. Climate Impacts on Agriculture: Searching for Keys under the Streetlight. GTAP Working Paper, May 2020. http://dx.doi.org/10.21642/gtap.wp86.
Повний текст джерела