Hand-held haptic navigation devices for actual walking

AML Kappers, MFS Oen… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
AML Kappers, MFS Oen, TJW Junggeburth, MA Plaisier
IEEE Transactions on Haptics, 2022ieeexplore.ieee.org
In this survey, we give an overview of hand-held haptic navigation devices specifically
designed for and tested with pedestrians. We distinguish devices for indoor use and for
outdoor use as the implementation is usually quite different. Outdoor devices make use of
Global Positioning Systems (GPS) tracking built-in in smartphones; indoor devices use a
variety of sensors, and tracking and localization systems and these are usually restricted to a
small part of a building. Overall, the high success rates reported in the studies show that …
In this survey, we give an overview of hand-held haptic navigation devices specifically designed for and tested with pedestrians. We distinguish devices for indoor use and for outdoor use as the implementation is usually quite different. Outdoor devices make use of Global Positioning Systems (GPS) tracking built-in in smartphones; indoor devices use a variety of sensors, and tracking and localization systems and these are usually restricted to a small part of a building. Overall, the high success rates reported in the studies show that vibrotactile stimulation via a hand-held user interface is suitable for navigation instructions, as in all experiments (almost) all participants reached their goal. An issue for several of the indoor devices is that walking speeds were (much) lower than normal walking speeds and path efficiency was relatively low. However, these issues might be overcome with some training as in most studies there was hardly any practice time. Several of the outdoor devices seem quite close to taking the last step before commercial use. In the Discussion, we evaluate the suitability of the devices for persons with visual and/or hearing impairments. Especially devices that provide very specific instructions, such as, ‘go straight’ or ‘go right,’ seem valuable for this population.
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