Wearable Virtual White Cane Network for navigating people with visual impairment

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Yabiao GaoZion Tsz Ho Tse

Abstract

Navigating the world with visual impairments presents inconveniences and safety concerns. Although a traditional white cane is the most commonly used mobility aid due to its low cost and acceptable functionality, electronic traveling aids can provide more functionality as well as additional benefits. The Wearable Virtual Cane Network is an electronic traveling aid that utilizes ultrasound sonar technology to scan the surrounding environment for spatial information. The Wearable Virtual Cane Network is composed of four sensing nodes: one on each of the user's wrists, one on the waist, and one on the ankle. The Wearable Virtual Cane Network employs vibration and sound to communicate object proximity to the user. While conventional navigation devices are typically hand-held and bulky, the hands-free design of our prototype allows the user to perform other tasks while using the Wearable Virtual Cane Network. When the Wearable Virtual Cane Network prototype was tested for distance resolution and range detection limits at various displacements and compared with a traditional white cane, all participants performed significantly above the control bar (p < 4.3 × 10(-5), standard t-test) in distance estimation. Each sensor unit can detec...Continue Reading

References

Jan 1, 1977·The Journal of the Acoustical Society of America·W JesteadtD M Green
Nov 5, 2010·Proceedings. Biological Sciences·Eberhart ZrennerRobert Wilke
Oct 11, 2012·Nature Photonics·Keith MathiesonDaniel Palanker
May 27, 2014·IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·Shripad BhatlawandeSomedeb Gupta
Jan 1, 2014·Assistive Technology : the Official Journal of RESNA·Emily E O'BrienKaren J Reynolds

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Citations

Jun 22, 2018·IEEE Transactions on Haptics·Paul PhamduyMaurizio Porfiri
Jul 9, 2021·Clinical & Experimental Ophthalmology·Rachel Marjorie Wei Wen TsengChing-Yu Cheng

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Software Mentioned

EyeCane
MiniGuide
Seeeduino

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