Sonic pathfinders and mini guides are audible and or vibratory electronic mobility aids designed for use by people who are blind or vision impaired. Historically the sonic pathfinders were head mounted devices, however, in recent years they have been developed to be carried in the palm of the hand. Mini guides send out ultrasonic beams to detect nearby objects. When objects are detected the palm device will vibrate and increase with intensity the closer the object becomes.
Sonic pathfinders and guides are secondary mobility devices and should be used in conjunction with other mobility devices such as Guide Dogs and canes. Mini guides detect what is in front of you. Guide Dogs and canes detect drop offs such as kerbs and railway platforms.
Orientation and mobility training is usually required to ensure the operator uses the pathfinder or guide effectively and safely.
Workplace solutions and adjustments
Sonic pathfinders and guides can be programmed for different environments, including work environments. They can be used to detect doorways, overhanging obstacles, traffic poles and ensure automatic doors are open. They therefore may be of assistance for persons with vision impairment who are required to travel independently for work to attend meetings, training or to do banking or mail delivery.
Other products and information that may also help with independent workplace mobility for people who are blind or vision impaired include:
References
ABLEDATA 2008, Sonic Pathfinder, ABLEDATA, Silver Spring, viewed 19 March 2011, http://www.abledata.com/abledata.cfm?pageid=19327&top=15541&productid=74626&trail=0&discontinued=0.
Guide Dogs NSW/ACT 2011, The Miniguide, Guide Dogs NSW/ACT, Sydney, viewed 19 March 2011, http://www.guidedogs.com.au/what-we-do/mobility-devices/miniguides.