In my project Cortana (in phone or pc) sits on a wheel chair controlled by Arduino…. Cortana takes command from the user via text or voice commands and sent the command to the controller (here, Arduino). For example if the user wants to go to a nearby Hotel….He/She can tell Cortana to take him there. The Cortana would send the location address….(probably using google earth)…to the Arduino which then uses GPS to navigate…..an image processing can also be done here to follow the footpath…avoid obstacle…detect traffic lights…etc. Along with this the user can freely interact with Cortana …making them entertained….they can interact with their friends… (Maybe over skype)… They can invite them to a place… (For a party maybe…) … As the matter of health comes…adding a health band can prove useful…if something unusual found…it will send message over GSM and will go to the nearest hospital on demand I will attach a schematic of my idea…

Coming to cost…it can be really effective…most of us have a pc or a windows phone..(so, no extra money required),it uses PC’s navigation system, then some hacks…..

Actually i got this idea for my sister...(she has downsydrome)...i can make sure that when she grows up...she will not be lonely...(of course i will be with her..)