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Blind people have enough trouble getting around the city or town they live in. Most use some sort of cane to make sure they don't hit into something. However the standard canes in use today give no further information.
My idea is simple. Why not make a cane that receives radio signals that emit voice instructions. Kind of like how RFID works. For example if a person is in a train station using the talking cane they could walk along the station and hear from their cane what track they are near for example the cane would pick up a signal from track 3 as they walked by and “talk” to the person saying track 3 so they would know what stair to take.
The drawing shows a cane with an antenna or radio receiver at the base, a battery, and a speaker all encompassed in the space of one cane.
Referring more particularly to the drawing, The talking cane would have an antenna or radio receiver at its base when a person using the cane got close enough to a transmitter placed at different locations throughout the city it would pick up the signal these transmitters relayed and convert the signal into voice commands that the person would hear through the speaker. The cane would be powered by batteries that would fit in the space of the cane.