发明名称 |
WIRELESS HANDHELD NAVIGATION SYSTEM FOR VISUALLY IMPAIRED PEDESTRIANS |
摘要 |
This invention relates to a system for orienting and guiding visually impaired pedestrians. The system combines a Global Positioning System (GPS) receiver to a dead reckoning unit that compensates for GPS imprecision and loss of signal. The system is highly portable: it is based on a handheld portable computing platform that communicates wirelessly with a self-powered strap containing the GPS receiver and the dead reckoning unit. The system also uses wireless protocols to receive additional orientation information from a remote location server or operator accessible through the internet. |
申请公布号 |
WO03078929(A1) |
申请公布日期 |
2003.09.25 |
申请号 |
WO2003CA00412 |
申请日期 |
2003.03.20 |
申请人 |
VISUAIDE INC. |
发明人 |
PEPIN, GILLES;GAUDET, MANON;HAMEL, PIERRE |
分类号 |
A61H3/06;G01C21/20;G01S5/14;G01S19/14;G01S19/34;G01S19/49 |
主分类号 |
A61H3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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