#CheaperBetterFaster: Tvilight Smart Streetlights. Can it be applied to HDBs corridor? [As much as half of a city’s electricity bill is from simply powering streetlights. Now a Dutch company’s design for smart street lights, which brighten only when needed, might help save massive amounts of that energy. The Tvilight system works by sensing someone on the street--whether it’s a car, cyclist, or pedestrian--and instantly gets brighter in exactly the right place, while other lights stay on at a dim level. It’s quite a bit more complicated than the typical motion sensor lights you might see inside an office. Instead of just one light, the system illuminates multiple lights all around a moving vehicle or pedestrian. The sensors inside are also smart enough to know not to activate the lights when a bird flies by, or when wind moves tree branches. The system can even tell what type of object is approaching; since a car moves faster, the lights around it are a bigger diameter and start brightening farther down the block. “Five years ago, wireless sensors were not ready for this challenge,” says Shah. Now that reliable low-power sensor network technology is available, his team was able to build a custom combination of sensors that could filter out movement to know how and when to illuminate.] - fastcoexist/3024383/these-smart-streetlights-only-get-bright-when-theyre-needed
Posted on: Sun, 13 Apr 2014 04:18:20 +0000
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