  At present many blind assistive systems have been implemented but there is no
such kind of good system to navigate a blind person and also to track the
movement of a blind person and rescue him/her if he/she is lost. In this paper,
we have presented a blind assistive and tracking embedded system. In this
system the blind person is navigated through a spectacle interfaced with an
android application. The blind person is guided through Bengali/English voice
commands generated by the application according to the obstacle position. Using
voice command a blind person can establish voice call to a predefined number
without touching the phone just by pressing the headset button. The blind
assistive application gets the latitude and longitude using GPS and then sends
them to a server. The movement of the blind person is tracked through another
android application that points out the current position in Google map. We took
distances from several surfaces like concrete and tiles floor in our experiment
where the error rate is 5%.

Human-Computer Interaction;Computers and Society