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I'm Jeff N Marquis wishing you a great day and weekend. August 3, 2009Students Develop Cane With E Tags to Guide BlindBy THE ASSOCIATED PRESSFiled at 3:33 p. m. ET DETROIT AP A cane equipped
with the technology that retailers use totag merchandise could help blind people avoid obstacles. An engineering professor and five students at Central Michigan Universityhave created a ''Smart Cane'' to read electronic navigational tagsinstalledbetween buildings to aid the blind in reaching their destinations moreeasily. ''This project started as a way for me to teach students to see andunderstand the ways that engineering can be used for the greater good,''said Kumar Yelamarthi, the professor and project leader. ''We wanted to dosomething that would help people and make our campus more accessible. '' During the spring term, Yelamarthi and five senior engineering studentstested the cane, which is equipped with Radio Frequency Identificationtechnology, similar to what retailers put on products to keep them frombeing stolen. The Smart Cane contains an ultrasonic sensor that is paired with aminiaturenavigational system inside a messenger style bag worn across the shoulder. For the test, the students installed identification tags between
twobuildings on the campus in Mount Pleasant, Mich. A speaker located on thebag strap gave audio alerts when the system detected an obstacle and toldthe user which direction to move.
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You can also expect to pay for local or cloud video storage. Local storage is essentially a microSD card, which is
generally a one time purchase, while cloud video storage costs an average of $5 a month or $50 a year. ÀHow We TestedVideoFor daylight video tests, we wrote on a poster and placed it 16 feet away to compare each camera's indoor video quality. We used two lighting settings: natural light with the lights on and natural light on its own. We found the video was often better with the lights on than with natural light alone. The
Flir FX and Foscam C2 had the best results with lights on. In low light conditions, the Nest Cam Indoor and the D Link DCS 2630L were better. Aside from overall daytime video quality, we also looked at each camera's picture clarity. Predictably, higher resolution cameras yielded the best results in this test, with 1080p cameras showing greater detail than 720p models. The Flir FX, D Link DCS 2630L and Netgear Arlo Q had the clearest video among 1080p cameras, while the Belkin NetCam HD+ was the best among 720p cameras. We concluded testing by evaluating how well each camera handled motion.
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