Wireless Technologies Make Driving Safer For Wheelchair Users

The Automatic Transport and Retrieval System (ATRS), Rosetta stone
scheduled to go on sale next spring, allows wheelchair users to get in and out of their vehicles, stow and retrieve their chairs, and drive while sitting in standard automobile seats.The new system is the product of a collaboration between the two universities; Freedom Sciences LLC, a robotics company located at the Philadelphia Navy Yard; and Freedom Lift Corp. of Green Lane, Pa. Freedom Sciences has signed a licensing agreement on the ATRS with Lehigh.John Spletzer, assistant professor of computer science and engineering, says the ATRS has achieved a breakthrough by enabling wheelchair users to drive while sitting in standard automobile seats that meet federal safety regulations.Current solutions for wheelchair users who desire independent mobility require operators to sit in their chairs while driving. Because they are often poorly secured and not crash-test-approved, wheelchairs provide far less protection than standard seats. According to the U.S. National Highway Traffic Safety Administration, 35 percent of all automobile fatalities related to wheelchairs result from inadequately secured chairs.The ATRS is also modular, says Spletzer, and can be installed without making permanent -- and expensive -- changes to the vehicle. Drivers trading in their cars merely remove the ATRS from the old vehicle and install it in the new one.By contrast, Rosetta Stone Spanish (Spain) Levev 1-5
wheelchairs users who now wish to drive must convert their vehicles, which requires lowering or replacing the floor of their van or minivan; rerouting fuel lines, heating and air-conditioning systems; and relocating the fuel tank.These changes severely restrict the resale value of the vehicle, says Spletzer. With the ATRS, however, you can buy or lease a vehicle, usually a van, and install the ATRS without making permanent changes to the vehicle. If you decide to buy another vehicle, you simply remove the ATRS, sell or return your van, and install the ATRS in your new vehicle.This gives you a lot more freedom and personal choice.The ATRS will cost 15,000 to 20,000, versus the 30,000 and up that wheelchair users now pay to convert vehicles. The figures do not include the cost of the wheelchair or vehicle.Spletzer and Tom Panzarella, CEO of Cook Technologies, parent company of Freedom Lift Corp., say the ATRS should be a boon to the six million people who, according to the U.S. Bureau of Transportation, have difficulty finding transportation.This is a major contributor to the unemployment rate of the disabled population nationally, which is estimated at over 65 percent by the U.S. Census Bureau, Spletzer and Panzarella wrote in a report.How it worksThe ATRS contains three key components: an articulated power seat that extends outside the vehicle to facilitate wheelchair-to-seat transfers, a power lift platform, and a smart wheelchair system.The ATRS works in the following manner:You move your powered wheelchair next to the driver's side of your vehicle. Rosetta Stone Spanish
Using a remote-control device similar to a key fob, you open the vehicle door and direct the vehicle to lower the driver's seat alongside your wheelchair. You then slide over from your wheelchair into the driver's seat. Once in the driver's seat, you deploy the power lift platform from the rear of the vehicle through the touch of a button.Using a joystick for remote control, you then guide your empty wheelchair to the rear of the van. There, the chair is switched to autonomous mode, and drives itself onto the lift platform using position feedback from an integrated laser system at a rate of 10 times per second. The lift platform then raises and stows the chair in the back of the van.At this point, you press another button to raise the driver's seat, in which you are sitting, up into the van.

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