Design and Implementation of a Smart LED Lighting System Using a Self Adaptive Weighted Data Fusion Algorithm

Sung, Wen‐Tsai; Lin, Jia-Syun

doi:10.3390/s131216915

Cited by 39 publications

(26 citation statements)

References 18 publications

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“…The data received will be saved in the csv file in the memory card of the mobile phone [8]. This work is different from a previous study that applied Wi-Fi for smart LED monitoring which is limited to area with wide are network facility [9].…”

Section: Results and Analysismentioning

confidence: 99%

Bluetooth embedded digital ammeter with android app data logging

Soon

Teng

Tee

et al. 2020

IJEECS

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Monitoring current supplies to light emitting diode (LED) luminaires is one of the reliability tests performed manually. Bluetooth (HC-05) embedded digital ammeter was proposed to acquire currents of a badge of LED products and hence, quality can be assured. Android App was designed to remotely record the current supplies to the different models of LED products and checking if the current measured is within the allowed range. The current data can be further analysed to control the quality of the LED luminaires produced. The pass and fail-current range can be set in the digital ammeter for alerting abnormal current measured by the operator. Therefore, IOT embedded digital ammeter will help in monitoring data consistency of LED products and improve quality assurance procedure.

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Section: Results and Analysismentioning

confidence: 99%

Bluetooth embedded digital ammeter with android app data logging

Soon

Teng

Tee

et al. 2020

IJEECS

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“…Light emitting diodes (LEDs) offer considerable advantages over conventional light sources including modest power consumption, high luminosity, long lifespans, miniaturization, portability, and low cost and as a result, are extensively applied in lighting, sensing, displays, and optical communication systems . Conformal epoxy and silicone coatings on LEDs, which are typically employed to serve both as protective sheaths and diffusers, suppress total internal reflection and in this way, enhance the external quantum efficiency (EQE) of emission.…”

Section: Introductionmentioning

confidence: 99%

Shaping LED Beams with Radially Distributed Waveguide‐Encoded Lattices

Lin

Benincasa

Fradin

et al. 2019

Advanced Optical Materials

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and in this way, enhance the external quantum efficiency (EQE) of emission. Because of the breadth and diversity of LED applications-and the consequent need for greater light coverage, better collimation, controllable divergence and ability to direct light to specific directions-there have been extensive efforts to shape, design, and systematically modulate their characteristically Lambertian beam profiles. Approaches range from microlenses or microprismatic facets, [9][10][11][12] photonic crystals [13][14][15] to nanorod arrays and nanospheres; [16,17] various radiation patterns such as a uniform intensity distribution, [10,18] batwings, [19,20] or beams with small divergence [11,12] have been achieved. These technologies often require modification of the native LED die or involve multiple, complex fabrication steps. Conventional optics such as lenses or mirrors [21,22] can also control the divergence and intensity distribution of LED beams but due to their nonplanar, bulky geometries hinder the integration of these miniature light sources into optical systems and devices. Here we show that LED beams can be modulated by a single component, plane-faced, slim polymer film embedded with a radial distribution of cylindrical waveguides. The radially distributed waveguide-encoded lattice (RDWEL) [23] is slim (≤2 mm) and flexible, rendering it suitable as a conformal coating that both protects and optically manipulates LED emission. Importantly, such coatings could be integrated without significantly disrupting mature LED fabrication technologies. The RDWEL is fabricated through a single-step, roomtemperature self-inscription method developed in our group, which exploits the spontaneous self-trapping [24,25] of large populations of incandescent beams in photopolymerizable acrylate [26][27][28] and epoxide [23,29] fluids. Each self-trapped beam elicited in these systems inscribes a multimoded, cylindrical waveguide capable of guiding all visible wavelengths of light. As a result, the RDWEL is operable with broadband light spanning the entire visible wavelength range. However, the focus of the current work is to demonstrate the manipulation of light from commercially available, narrowband LEDs by the RDWEL structure.Akin to the arthropodal compound eye, the RDWEL possesses an enhanced and seamless field of view (FOV). [23] As a result, a noncollimated LED beam incident on the RDWEL

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“…Demand for the development and management of smart LED technology has continued to increase. Sung and Lin (2013) proposed the design and implementation of smart LED systems using self-adaptive weighted data fusion [16]. They developed a smart LED system controlled by smart devices.…”

Section: Introductionmentioning

confidence: 99%

Technology Analysis of Global Smart Light Emitting Diode (LED) Development Using Patent Data

Park

Jun

2017

Sustainability

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Abstract:Technological developments related to smart light emitting diode (LED) systems have progressed rapidly in recent years. In this paper, patent documents related to smart LED technology are collected and analyzed to understand the technology development of smart LED systems. Most previous studies of the technology were dependent on the knowledge and experience of domain experts, using techniques such as Delphi surveys or technology road-mapping. These approaches may be subjective and lack robustness, because the results can vary according to the selected expert groups. We therefore propose a new technology analysis methodology based on statistical modeling to obtain objective and relatively stable results. The proposed method consists of visualization based on Bayesian networks and a linear count model to analyze patent documents related to smart LED technology. Combining these results, a global hierarchical technology structure is created that can enhance the sustainability in smart LED system technology. In order to show how this methodology could be applied to real-world problems, we carry out a case study on the technology analysis of smart LED systems.

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Design and Implementation of a Smart LED Lighting System Using a Self Adaptive Weighted Data Fusion Algorithm

Cited by 39 publications

References 18 publications

Bluetooth embedded digital ammeter with android app data logging

Bluetooth embedded digital ammeter with android app data logging

Shaping LED Beams with Radially Distributed Waveguide‐Encoded Lattices

Technology Analysis of Global Smart Light Emitting Diode (LED) Development Using Patent Data

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