公开(公告)号：US10134304B1

公开(公告)日：2018-11-20

申请号：US15645735

申请日：2017-07-10

Applicant: DISH Technologies L.L.C.

Inventor： William Michael Beals ,  Jeffrey Lang McSchooler

IPC: G09B21/00 ,  G01S13/93 ,  G01S13/86 ,  G01S13/08 ,  E01H5/06 ,  G08B7/06 ,  A61H3/06

Abstract: Various arrangements for avoiding obstacles for a visually-impaired pedestrian are presented. An m by n matrix of distance measurements may be created using a scanning time of flight (ToF) sensor component for various different directions. The m by n matrix of distance measurements and the m by n direction matrix may be analyzed to identify a first obstacle having a vertical height that differs by at least a predefined threshold measurement from a neighboring second region. Based on identifying the first obstacle, an indication of the first obstacle and an indication of the distance to the first obstacle determined using the m by n matrix of distance indications may be output.