Another benefit is that the system also can detect oncoming cars and direct the headlight beams away from the eyes of those drivers, eliminating the need to shift from high to low beams.end-ofTags: headlight system, led technology, carnegie mellon university, cars, automobile. To high-speed cameras, however, rain consists of sparsely spaced, discrete drops. (Representational image)Scientists, including one of Indian origin, have developed a smart headlight system for the first time that can help drivers see through heavy rain or snowfall and safely navigate roads during stormy nights.”If you car park lighting suppliers driving in a thunderstorm, the smart headlights will make it seem like it’s a drizzle,” said Srinivasa Narasimhan, CMU associate professor of robotics.”
And because the precipitation particles aren’t being illuminated, the driver won’t see the rain or snow either,”To people, rain can appear as elongated streaks # that seem to fill the air.New LED technology could make it possible to combine LED light sources with image sensors on a single chip, enabling high-speed operation at low cost.The system uses a camera to track the motion of raindrops and snowflakes and then applies a computer algorithm to predict where those particles will be just a few milliseconds later.”A human eye will not be able to see that flicker of the headlights,” Narasimhan said.To operate at highway speeds and to work effectively in snow and hail, the system’s response will need to be reduced to just a few milliseconds. Road-worthy systems likely would be based on arrays of light-emitting diode (LED) light sources in which individual elements could be turned on or off, depending on the location of raindrops.
Though a smart headlight system will never be able to eliminate all precipitation from the driver’s field of view, simply reducing the amount of reflection and distortion caused by precipitation can substantially improve visibility and reduce driver distraction.That leaves plenty of space between the drops where light can be effectively distributed if the system can respond rapidly.It prevents the distracting and sometimes dangerous glare that occurs when headlight beams are reflected by precipitation back toward the driver.Lab tests have demonstrated the feasibility of the system and the researchers are confident that the speed of the system can be boosted. To people, rain can appear as elongated streaks that seem to fill the air.
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