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Smart Lighting Summer Challenge Course

Smart Lighting Summer Challenge Course. Thomas Little. Overview. Structure of the course The Smart Lighting Engineering Research Center The Vision of the Center Visual Light Communications (VLC) The Lab Kits. Structure of the Course.

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Smart Lighting Summer Challenge Course

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  1. Smart LightingSummer Challenge Course Thomas Little

  2. Overview Structure of the course The Smart Lighting Engineering Research Center The Vision of the Center Visual Light Communications (VLC) The Lab Kits

  3. Structure of the Course Goal: iteratively build up skills and knowledge to create a point to point visible light communications system Use Mobile Studio and the Rhett Board to investigate LEDs, modulation, and data communications A set of lab modules that will be completed in class Lab log books Final summary and presentation by the class of the work done in lab

  4. The Smart Lighting Center • Fundamental advancements in LEDs – that enable a wide range of new applications in • Bio-imaging • Communications • Display technologies • Exploit strength in • Novel materials • Devices • Downstream systems • Strong commitment to education, supporting underrepresented groups • 10 years > $18M from National Science Foundation • > $50M via supplementary university, state, industry • Boston University role • Communications and networking

  5. THE 20TH CENTURY: BATHED IN ELECTRIC LIGHT Bulbs, Tubes and Fixtures • Easy off and easy on • Light Quality: White • Hot Filaments • Plasmas Sensors Controls Controls: On/Off/Dim – Human Operator Sensors: Limited or not used Everyone is a Lighting User

  6. ANOTHER REVOLUTION IN LIGHTING IS COMING First Wave Philips L-Prize Bulb • Globally, over 3000 companies making LED bulbs • Much more efficient, even than CFLs • Adequate white light, but that is about it

  7. BUT LIGHT CAN DO SO MUCH MORE… • Color • High Speed Switching • Spatial Control • Polarization Selectivity Electric Lighting barely taps the full power of Photons

  8. THE SECOND WAVE: SMART LIGHTING

  9. SMART LIGHTING ERC VISION Immersive Lighting Synthesizing Light for the Benefit of Humanity Engineered light for energy efficiency, health, productivity

  10. SMART LIGHTING SOCIETAL BENEFITS

  11. ENERGY SAVINGS: EFFICIENT SOURCES, CONTROLS

  12. Energy Efficiency Gains in Lighting

  13. Energy Savings Goals • RGBY Lighting • Controls • Sensors provide key information 1 Quad ~ 172 M barrels of oil equivalent Adapted from the DOE SSL Report, February 2010

  14. Quantification of solid-state lighting benefits Cause: CO2 Cause:Wasteheat and acid rain CO2 ,SO2, NOx, Hg, U Cause: SO2 Energy benefits • 22% of electricity used for lighting • LED lighting can be 20 and 5 more efficient than incandescent and fluorescent lighting, respectively • Reduction in energy consumption > 1020J (*) • Barrels of crude oil not needed: 0.96 109 (*) • Power plants not needed: 280 (*) Environmental benefits • Global warming: Reduction of CO2 emissions > 10 Gt (*) • Acid rain: Reduction of SO2 emissions • Mercury, Hg: Reduction of toxic Hg emissions / Hg in homes Financial and economic benefits • Reduction in electrical energy cost > 1012 $ (*) (*) over 10 years, worldwide, see Schubert et al. Reports on Progress in Physics 69, 3069 (2006) Antarctica Czech Republic United States Switzerland

  15. Lighting Impacts Health Intensity Spectrum Distribution Timing Duration Visual System Performance, Well-being, Satisfaction, and HEALTH IESNA • What Else? • Cognition • Memory • Recovery • Circadian Disruption: • Cancer • Heart Disease • Diabetes • Obesity Circadian System Intensity Spectrum Distribution Timing Duration 15

  16. Biochemical Sensing and Mitigation • Distributed Biochemical Sensing • UVC Germicidal Mitigation • UVA Photocatalytic Purification

  17. Lighting – Changes are Coming The Right Light, Where and When You Need It

  18. Visible Light Communications: what it is Source Intensity Observer • Synopsis • Modulated light • Visible spectrum (you can see it) • A la ship to ship Morse code • Point to point in simplest form • Illumination + communication in the dominant scenarios Time

  19. Use Cases Drive the “Systems Pull” • Increasing safety in transportation with active braking • Reducing total cost of ownership in indoor illumination and industrial automation by wire elimination

  20. Use Cases Cont. • Enabling densely-packed indoor wireless video streaming (e.g., in airplane) • Providing ubiquitous network access where there is human-created light (light=smarts [network/control/communications])

  21. Leveraging Lighting for Communications Indoor Wireless Access Visible Light Communications (VLC) • Qualities: • Ubiquitous • RF-free zone • Privacy • Localization

  22. Why VLC? Realize the goals Reduced Health Care Costs Enable lighting that is responsive to human needs: quality, timing, characteristic Indoor localization for assisted living, asset mgmt. Enabling safety messaging, remediation protocols Color control From NXP Communications & Networking is essential for these benefits Indoor Navigation

  23. Why VLC? Realize the goals Internet & Grid Control of lighting for exactly meeting human needs Load management, building management Feedback for individual or aggregations of devices Energy Efficiency & Sustainability Lighting tightly integrated into energy management systems Communications & Networking is essential for these benefits

  24. Why VLC? Realize the goals Immersive Lighting Reconcile proliferation of devices in ‘the internet of things’ Responsive low-latency interaction as data consumption skyrockets Localized, high-data-rate communications, and adapting to the limitations of the medium Opportunity to decrease costs via interoperability and reduction in TCO Increased Productivity Need responsiveness, speed, and ubiquity of access in the immersive lighting field. Leverage lighting for communications.

  25. How VLC Helps (Cooperative) Augmenting indoor spaces with VLC access can significantly improve performance of existing wireless (WiFi) channels Luminaires AP1 AP2 AP3 Wired Interconnect Network 5 Mb/s 5 Mb/s Router and WiFi Access Point 15 Mb/s Strategy: Use WiFi, but offload traffic to VLC luminaires for the downlink only

  26. Hand-off for Mobility

  27. Fusion in Lighting and Display Fixture Enclosure Input Power Power Conversion Diversity MIMO Network Color/ intensity control Modulation Optical Channel 2011 Nano-plasmonics LED Drivers Media Conversion (Bridging) Signal Processing Receivers Reference Model 2018

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