hi frnd pls give me some info on:BLIND GUIDING ROBO

Utah State University(USU) Professor Vladimir Kulyukin and four graduate students have made a robotic guide for Visually impaired people and which may have an easier time shopping or finding their way around airports with the aid of a device being developed
The device is called the robotic guide. It looks somewhat like a large, flat vacuum cleaner and consists of a commercial robotic base, with a sensor that hones in on radio frequency identification (RFID) tags. The RFID tags can be placed discreetly in any indoor environment, such as areas of a grocery store or in airports,The robotic guide is made from a PVC pipe structure with a handle for the user to hold onto and includes a basket to place grocery items in.a portable barcode reader and the Braille dictionary used to help the user locate their item via voice menu. All the user has to do is push any button on the keypad and they are put into a voice menu that will enable them to choose the item what they are searching for....and similarly researches made Robo-pen for blind to guide the hands of the blind

read more http://www-robotics.usc.edu/~tapus/AAAIS...7_id18.pdf
http://www3.interscience.wileyjournal/52...1&SRETRY=0