Smart Light Emitting Diode (LED) Luminaires

In this PhD research project, several aspects regarding “Smart LED luminaires” will be addressed and investigated: to select and optimize the hardware architecture, to define the optimal lighting requirements for each application based on the response of test persons, to develop driving algorithms and etc. The ever growing evolution in the electronics and semiconductor manufacturing world, has made mass production, cheaper unit price and increased market penetration of LEDS technology a reality. Recently, many lighting applications are widely implemented via LED-based light sources because of their superior luminous efficacy, possibility of different features and lower price. Further, Recent progress in LED technology researches yield wide range of LEDS with respect to color enhancement, spectral content, luminous intensity distributions, energy efficiency and driving modes. Conventional luminaires applied in lighting system are not able to perform communication, control and management features. This has in turn has a negative impact on the efficiency, reliability, controllability and energy consumptions of such systems. With the broad availability of flexible-lighting technology like light-emitting diode lamps and everywhere available wireless internet connection, fast reacting, reliably operating, and power-conserving smart lighting systems become reality. Smart LED luminaries’ applications are designed to provide management and control of the whole interconnected system, ensuring reliability, cost saving and high efficiency. Intelligent lighting equipment could provide others benefits, such as adaptive dimming, allowing to vary the light intensity in accordance with situations. Thereby, such system requires a luminaire that offers flexibility for dimming and high efficiency. Within this context, the LED technology is being presented as a better alternative in lighting systems, because it also provides low power consumption, low environment impact and long life-span. When smart lighting systems are connected with smart features, it’s possible to add communication abilities, enabling the on-time data transmission to provide information about fault tolerance, energy consumption and to send commands to accomplish dimming remotely. Further, Today, the lighting community is convinced that a luminaire can do much more than producing light: a luminaire can host several sensors and will evolve towards a smart and intelligent system. This will lead to an optimized power consumption of lighting combined with an increased lighting comfort and quality. In this PhD work, several aspects regarding “Smart LED luminaires” will be investigated and addressed: including selecting and optimizing different hardware architectures, defining optimal lighting requirements for different application based on the response of test persons and developing driving algorithms. The proposed PhD work will have the following main stages; • An in depth and detail literature review on past related works, • Investigation of many different LED system designs and principles of operation, • Investigation of different LED based system hardware optimization techniques, • Exploration of various specific lighting requirements, • Defining design specification for an LED system, • Designing LED system, • Verification of the design via simulation, • Fabrication of the design, • Testing and verification of the system • Publication and Documentation