Electronic cane mobility aids for the visually impaired

摘要

Cane electronic mobility aid for the visually impaired. # This document refers to an electronic stick formed by a standard white cane any type whose handle is replaced by the electronic handle object of the present invention. The handle contains a series of ultrasonic sensors disposed with a certain orientation, which depend on the height and size of the user, from which it is possible to discriminate two spatial regions defined at approximately waist height of the blind. Discrimination in these regions makes it possible to locate the position of objects in front of the user, implying adequate notice to impossible aerial obstacles to detect using a white cane traditional, and in turn eliminating redundant or unnecessary information with elements that do not pose a real obstacle on the road user. # in a situation in which the user can collide with a suspended object, and impossible to detect the contact of the stick itself, a warning is produced by vibration of a bracelet worn by the user placed on the doll. The bracelet can be linked to electronic stick by an electrical connection (cable) containing a safety connector. If the cane is embedded in an obstruction (eg sewer grate) connector is released preventing the user from a dangerous tug on her wrist.