Skip to main content

Virigina Tech students build car for blind

Wednesday, July 29, 2009 VIRGINIA: Virginia Tech undergrads packed an all-terrain buggy with technology lifted from the university’s DARPA Urban Challenge entry to create a car the blind can drive.The semi-autonomous vehicle uses a laser range finder, voice software and other sensory technology, and it worked flawlessly when blind drivers took the wheel on a closed course. Advocates for the blind joined the lead researcher in calling the vehicle a breakthrough in independent living for the visually impaired.“We are not only excited about the vehicle itself, but also the potential spinoff technologies from this project that could end up helping the blind,” Dennis Hong, the director of the university’s Robotics and Mechanisms Laboratory said. The car was born of a challenge the National Federation of the Blind’s Jernigan Institute issued in 2004 when it called on universities to develop a vehicle for the blind. Virginia Tech accepted the challenge in 2006 — the only university to do so — and received a $3,000 grant to begin the project.The Blind Driver Challenge team at Virginia Tech’s Robotics and Mechanisms Laboratory built the buggy. The steering wheel is hooked up to a distance monitor that gathers information from laser range finders, and it uses voice software to tell the driver how far to turn the wheel. For example, the monitor will tell the driver “turn left three clicks.” As the driver does that, the monitor makes three clicking noises.A vibrating vest provides cues to follow when accelerating and decelerating. The vest vibrates in different places — the back, the belly and the shoulders — to convey different commands. When the entire vest vibrates, it means, “Slam on the brakes!”“Originally we had a vibrating chair, but the vehicle was also vibrating on account of the motor, so drivers had some difficulty differentiating between the two,” Hong said. “The 2009-2010 team will be applying this technology to an electric vehicle to eliminate the vibration caused by the motor altogether.”Hong wants to continue working on a tactile map interface. The system, called Airpix, shoots compressed air through tiny holes on a screen in real time, to provide a layout of the area surrounding the vehicle. Drivers can “read” the map with a hand, much like Braille. Hong said he needs more feedback from the blind and visually impaired to refine the system.All this technology is clearly in its earliest stage,s and we’re a long way from the day when the blind join us in slogging through the morning commute. But the Federation for the Blind hailed the vehicle and the promise it offers.“It’s a great first step,” Wes Majerus, an access-technology expert for the federation, said in a press release. “As far as the differences between human instructions and those given by the voice in the Blind Driver Challenge car, the car’s instructions are very precise. You use the technology to act on the environment — the driving course — in a very orderly manner.”Majerus drove the car and said, “It was great.” Mark Riccobono, executive director of the Jernigan Institute, called his test drive historic. “This is sort of our going-to-the-moon project,” he said.Although the technology is progressing, laws prohibiting the blind from driving — not to mention public perception about that possibility — must be changed, Hong said. That is why the Blind Driver’s Challenge team will be promoting the vehicle’s technology at a National Federation for the Blind–sponsored parade in Washington, D.C.“People always say, ‘What’s the point of this project?’” Hong said. “But blind people who drive the vehicle always have a big smile on their face afterwards. It’s therapeutic and gives them hope of being entirely independent.”

Comments

Popular posts from this blog

India's swine flu death rate is increasing

Friday, August 14, 2009 MUMBAI: A 26-year-old woman died Thursday of H1N1 swine flu in the southern city of Bangalore, raising India's death toll from the virus to 20, authorities said.The death was the first reported in India's information technology capital, the Press Trust of India reported.Meanwhile in Pune, the worst-affected in India, two more victims of the virus died Thursday, raising the death toll in that western city near Mumbai to 12, the report said. The victims were an 11-month-old boy and a 75-year-old old woman.US media reported movie halls, schools and colleges were ordered closed Thursday for three days to a week in Mumbai, the commercial and financial capital of the country, as fear of the pandemic spread.Prajakata Lavangare, a spokeswoman for the government of Maharashtra state of which Mumbai is the capital, said similar orders were issued in Pune, which is also located in the state.The woman who died in Bangalore was identified only as Roopa, a teacher in...

Suicide bombings kill 18 in Iraq

Thursday, August 13, 2009 MOSUL: At least 18 people, most of them members of the ancient Yazidi religious sect, were killed when two suicide bombers blew themselves up on Thursday in a packed cafe in northern Iraq, a local government official said.At least 31 people were also wounded after the bombers detonated suicide belts packed with explosives in the cafe in Kalaa town, in the district of Sanjar, local district chief Dakheel Qassem Hasoon, told a foreign news agency."Two suicide bombers entered the Cafe Barbaroz at 4:30 pm (1330 GMT) and blew themselves up, killing 18 civilians and wounding 31. Most of the victims were Yazidis," Hasoon said.Kalaa, northwest of the insurgent stronghold of Mosul in northern Nineveh province is predominantly populated by the minority Yazidi religious sect, as well as Arabs and Kurds.The attack is the deadliest since Monday, when 51 people were killed across Iraq, including 28 members of the tiny Shabak sect cut down when two truck bombs det...

US drones to target Taliban in Afghan war

Friday, July 31, 2009 WASHINGTON: The US military plans to use more drone aircraft to target Taliban militants in Afghanistan while focusing less on hunting down Al-Qaeda figures, report said on Thursday.Although defeating the Al-Qaeda terror network remains an overriding goal for Washington, officials now believe the best way to pursue that objective is to ensure stability in Afghanistan and neighboring Pakistan instead of Al-Qaeda manhunts, the paper said, citing US government and Defense Department officials.It was more important to prevent a slide towards violence and anarchy that could be exploited by Al-Qaeda, which used Afghanistan to stage its attacks on the United States on September 11, 2001, the officials said."We might still be too focused on Bin Laden," an official said. "We should probably reassess our priorities."The shift in priorities for the drone fleet comes despite President Barack Obama's declaration that defeating and dismantling Al-Qaeda ...