[1]The Air Force Xi’an Flight Academy,Xi’an 710300,Shanxi,China;
[2]College of Resource and Environment Sciences,Xinjiang University,Urumqi 830046,Xinjiang,China;
[2]College of Resource and Environment Sciences,Xinjiang University,Urumqi 830046,Xinjiang,China;
[2]College of Resource and Environment Sciences,Xinjiang University,Urumqi 830046,Xinjiang,China;
Visual impairment; Route guidance; Spatial cognition; Haptic(vibration);