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Table 6 Result of interview

From: New indoor navigation system for visually impaired people using visible light communication

  Suggestion of navigation function (position, direction, distance)
A It is difficult to decide the superiority or inferiority of guidance by the clock position and eight directions.
B The distance to the destination was found well.
C It should show the direction of movement always more correctly. The guidance should synchronize with the walking speed.
D It should support, when a direction of movement changes quickly (ex; the obstacle, bump to a person).
E I would like to always check whether it is walking correctly to a course.
F I was not able to memorize guidance to the destination, however I have imagined it.