The design of the product is presented in the pictures below. Here is a smart cane for visually impaired people, which consists of an RFID reader placed 5 cm from the bottom of the cane (so that it does not get broken when walking, but is still in contact with the RFID tags' coverage area), and a specially designed handle that has an ON-OFF button, two buttons that answer the yes-no questions (the YES button is rectangular, while the NO button is round), a bluetooth communicator, batteries' state indicator, batteries, a USB port for charging and data communication (e.g. firmware installation), microcontroller.
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The 3rd floor plan is presented in the next picture, together with the RFID tags' places highlighted on it:
The storyboard for the scenario we presented in an earlier post is in the next two pictures:
Finally, here is an overview of the system architecture and the sequence of actions performed :
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