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oe1(光电查) - 科学论文

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?? 中文(中国)
  • Smart Lighting Systems as a Demand Response Solution for Future Smart Grids

    摘要: Massive deployment of distributed and intermittent renewable energy sources cause instability in the power system because of the mismatch between the power generation and load consumption. In order to solve this problem, smart loads embedded with modern power electronic converters and communication devices are being developed. They are able to communicate with the utility and perform automatic demand response. In this paper, we propose a smart light-emitting diode (LED) driver for lighting. This smart LED driver adjusts its electricity usage in response to the utility without the expense of human visual comfort. To achieve this goal, a new control method is developed and a typical rate of change of LED power is determined through conducting a series of visual assessments with interviewees. An experimental smart LED driver is built to validate the new control method. Experimental report from the visual assessments has confirmed that the proposed control method can significantly reduce the light flickering caused by change of LED power.

    关键词: Smart lighting,demand response,renewable energy,smart grid

    更新于2025-09-23 15:23:52

  • Smart lighting as basic building block of smart city: An energy performance comparative case study

    摘要: The aim of this work is to simulate and compare the energy savings potentially applicable to the consumption data of the Smart Street pilot system located at the ENEA Casaccia R.C. (Rome). The astronomical lighting system energy consumption (baseline) is compared to the simulation of a pre-defined regulation: it allows the lights dimming (and therefore a reduction of consumptions) based on a statistics average of the traffic flow rate, differentiated according to the day of the week. Then the baseline consumption is compared to the simulation of an adaptive configuration based on the traffic flow rate.

    关键词: pre-defined regulation,adaptive regulation,energy performance,TAI,smart street,smart lighting,smart city

    更新于2025-09-23 15:22:29

  • [IEEE 2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) - Trebic, Czech Republic (2018.9.18-2018.9.20)] 2018 VII. Lighting Conference of the Visegrad Countries (Lumen V4) - Directions of Research and Standardization in the Field of Outdoor Lighting

    摘要: This paper aims to highlight current trends in research and standardization in light and lighting with focus on the outdoor lighting. Activities of the International Commission on Illumination (CIE) are briefly presented and detailed in selected topics picked up from the list of research priorities. The highlighted topics comprise adaptive lighting, tailored lighting, new lighting metrics, maintenance factor and obtrusive light issues in particular. Outlook for standardization items, priorities and strategy is outlined in the paper.

    关键词: obtrusive light,smart lighting,research,outdoor lighting,maintenance factor,standardization,tailored lighting,light and lighting,adaptive lighting

    更新于2025-09-23 15:21:21

  • An Efficient Method for LED Light Sources Characterization

    摘要: Digital LED drivers capable of blending the spectrum of two LED ?xtures with different Correlated Color Temperatures through the LEDs’ power supply control are widespread. However, the digital control of lighting systems is possible only after a careful study of the LED’s response, in terms of illuminance and Correlated Color Temperature. The proposed work takes advantage of the Tunable White technology for the realization of an ef?cient method for LED light source characterization. In order to evaluate how the light changes as a function of the electric power supplied by the LED drivers, an experimental setup to characterize LED light sources has been designed. Starting from the data acquired from the experimental setup, a model for dimming the LED driver and obtaining the desired values of quality of light has been developed. The proposed model is based on the least squares method and its accuracy is evaluated by comparing the obtained values of illuminance and Correlated Color Temperature with those measured by an illuminance spectrophotometer. Results achieved an error of 0.3% for Correlated Color Temperature and 1.5% for illuminance using the proposed approximation functions.

    关键词: smart lighting,LED light,tunable white technology,digital LEDs control,source characterization

    更新于2025-09-12 10:27:22

  • [IEEE 2019 IEEE Photonics Conference (IPC) - San Antonio, TX, USA (2019.9.29-2019.10.3)] 2019 IEEE Photonics Conference (IPC) - CMOS Compatible Dual Avalanche Photodiode for Algorithmic Visible Spectral Sensing

    摘要: A previously reported CMOS-compatible dual avalanche photodiode design is exploited to develop a maximum-likelihood spectral-sensing algorithm, which maps the dual photocurrents to the light’s wavelength. Optimization over the reverse biases of the two APDs yields a spectral resolution of 10 nm within 440-650 nm.

    关键词: spectral sensing,maximum likelihood,smart lighting,Avalanche photodiode,silicon,dual APD,CMOS

    更新于2025-09-11 14:15:04

  • In-Planar-Electrodes Organic Light-Emitting Devices for Smart Lighting Applications

    摘要: Smart lighting systems have earned an irreplaceable position in fields such as health care, communication, and garden cultivation. Inorganic light-emitting diode (LED) illuminant, as a traditional and well-developed field, is suitable for smart lighting systems and widely researched. However, smart lighting systems with organic light-emitting device (OLED) illuminant are rare. The key issue is to fabricate an efficient OLED illuminant with tunable spectra and intensity. Here, in-planar-electrodes OLEDs (IPE-OLEDs), which could be a possible solution to OLED illuminant used in smart lighting systems, is presented. By utilizing Mg:Ag thin film to connect two regular OLEDs with novel electron transporting layer, efficient and easy-to-fabricate IPE-OLEDs with high brightness and low voltage are achieved. The working mechanism of the IPE-OLEDs is discussed. The IPE-OLEDs can be easily driven with alternating current signals to independently address each emissive sub-cell. Thus, the OLED illuminant based on IPE-OLEDs enables adjustment of color temperature and intensity. To exhibit the features of the fabricated IPE-OLEDs further, a simple but effective smart lighting system containing IPE-OLEDs and gas detector is constructed, which could be used in the mining industry.

    关键词: planar electrodes,OLEDs,color-tunable,alternating current,smart lighting

    更新于2025-09-10 09:29:36

  • [IEEE 2018 Seventh Balkan Conference on Lighting (BalkanLight) - Varna, Bulgaria (2018.9.20-2018.9.22)] 2018 Seventh Balkan Conference on Lighting (BalkanLight) - Smart Lighting Solutions for Residences Using IoT Infrastructure: Advantages, Disadvantages and Effects on Energy Saving

    摘要: Smart home systems have already become one of the most important applications of Internet of Things. Previously, the investment cost of smart home systems was quite expensive which required a lot of installation issues. However, wireless solutions offered by IoT applications has decreased the investment costs and brought easy, do it yourself solutions. In parallel to this, smart LED light sources and lighting control infrastructure have also been developed. In this study, it’s aimed to investigate the latest technological developments in Internet of Things, smart LED lamps and control systems and application areas in residential lighting with regard to new communication protocols and standards. It is also aimed to investigate energy saving opportunities by smart LED lamps in comparison to incandescent lamps, CFLs and LEDs.

    关键词: Internet of things,energy efficiency,residences,smart lighting

    更新于2025-09-09 09:28:46

  • [IEEE 2018 9th International Conference on Computing, Communication and Networking Technologies (ICCCNT) - Bangalore (2018.7.10-2018.7.12)] 2018 9th International Conference on Computing, Communication and Networking Technologies (ICCCNT) - A Novel Approach for Internet of Things Based Intelligent Lighting

    摘要: Lighting contributes a sizeable share to energy wastage globally and so development of Internet of Things based smart lighting system is on the rise. The prevalent ambient smart lighting systems see limited use since they have not been developed with a generic perspective to be installed everywhere. This has not yet been possible because there are a lot of variable and static parameters involved in the functioning of the smart lighting system. Moreover there is a trade-off between user comfort and energy savings which the current systems have not realised. In this paper a new algorithm is proposed which considers the factor of user comfort which enables the resulting system to understand the user’s requirements. There are also various parameters such as Light Re?ectance Value, weather, average natural light etc. which affect illumination. In this paper a new smart lighting system is proposed which works intelligently by considering these parameters.

    关键词: Internet of Things,Illumination Factors,User Comfort,Smart Lighting System

    更新于2025-09-09 09:28:46

  • [IEEE 2018 International Conference on Information and Communication Technology Convergence (ICTC) - Jeju Island, Korea (South) (2018.10.17-2018.10.19)] 2018 International Conference on Information and Communication Technology Convergence (ICTC) - IoT lighting address scheme and profile API design for interoperability

    摘要: As IoT becomes a hot topic, IoT lighting that can be controlled remotely by smartphones or internet is expanding. Because lighting suppliers are using proprietary CMS and proprietary lighting protocols or existing lighting protocols, interoperability is becoming an important issue when applying IoT lighting. In this paper, we designed the address scheme and profile API and applied it to support interoperability even if IoT lighting and CMS are made by other vendors. In addition, the designed address scheme and profile APIs can be used to support energy savings, user friendliness, control diversity, IoT lighting status consistency and automated maintenance. We have proved that existing lighting and IoT lighting can interoperate by interworking with control devices developed by different companies and five kinds of gateways.

    关键词: IoT lighting,IoT Interoperability,profile,API,address scheme,smart lighting

    更新于2025-09-04 15:30:14

  • [IEEE 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE) - Nara, Japan (2018.10.9-2018.10.12)] 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE) - Towards Smart Lighting System without Using Chroma Meter in Workplace

    摘要: We consider the problem of improving the performance of smart lighting system by estimating the level of illuminance and color temperature for each user in the workplace. In the conventional method of lighting control system, the chroma meter sensing device is used to measure the illuminance and the color temperature level in the desk. The new method has been developed to provide the level of illuminance and color temperature without using chroma meter for each user at the workplace. The approach has been developed to increase the efficiency of energy in the workplace. Therefore, the smart lighting system with chroma meter has become very useful to provide a level of illuminance and color temperature for each user, but the lighting control system with chroma meter become expensive, and it is an obstacle to introduce the system for each office as the chroma meter is very expensive. In this paper, the level of color temperature has been estimated by using the property of light for color temperature for each user in the office while minimizing the energy. The results conclude that the proposed model of the system could provide illuminance and color temperature for users without using chroma meter, as well the energy could be reduced.

    关键词: Chroma meter,Color Temperature,Illuminance,Smart Lighting

    更新于2025-09-04 15:30:14