On 06/10/06, Mukund Deshmukh betacomp_ngp@sancharnet.in wrote:
I am sorry to discourage a bit, but from the beginning the idea seems to be a big flop. The reason was software guys were commenting on hardware (very dangers) except a few like JTD, and other. I had suggested a cheapest solution but it was, blown away in bluetooth, tcpip, webserver, barcode and ... Once again I will repeat my idea.
Install low power FM transmitter (range 25 meter) at each junction. The frequency will be fix and it will used by all transmitter at other junctions. The pedestrian will need to have a FM radio tuned to that frequency. The transmitter will play prerecorded message giving direction. Where ever he goes he will get prerecorded message for that junction.
and who pays for the fm licensing? this issue was discussed at length and it wont be leagul for us to do such a thing. and the problem from the point of views of audio interfacing is to see from which way a blind person is approaching the post and weather to give him a "go to left" or "go to right ". there are other problems too as such a fm system will not provide for any interaction. for example I want to decide out of the 10 places where exactly I want to go. regards. Krishnakant.