公开(公告)号：WO2019013962A1

公开(公告)日：2019-01-17

申请号：PCT/US2018/039317

申请日：2018-06-25

Applicant: DISH TECHNOLOGIES L.L.C.

Inventor： BEALS, William Michael ,  MCSCHOOLER, Jeffrey Lang

IPC: G01S17/89 ,  A61H3/06

CPC classification number: G09B21/006 ,  A61H3/061 ,  A61H3/068 ,  A61H2003/063 ,  A61H2201/50 ,  A61H2201/5064 ,  A61H2201/5069 ,  A61H2201/5092 ,  A61H2201/5097 ,  A61H2230/065 ,  A61H2230/305 ,  E01H5/066 ,  G01S7/4802 ,  G01S13/08 ,  G01S13/86 ,  G01S13/93 ,  G01S17/023 ,  G01S17/89 ,  G08B6/00 ,  G08B7/066

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.