发明授权
- 专利标题: Apparatus for displaying travel path
- 专利标题(中): 显示行驶路径的装置
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申请号: US224985申请日: 1988-07-27
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公开(公告)号: US4963864A公开(公告)日: 1990-10-16
- 发明人: Akira Iihoshi , Yukinobu Nakamura , Yoshiyuki Matsumoto , Tomoyuki Nishio
- 申请人: Akira Iihoshi , Yukinobu Nakamura , Yoshiyuki Matsumoto , Tomoyuki Nishio
- 申请人地址: JPX Tokyo
- 专利权人: Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人: Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-198630 19870807; JPX62-198631 19870807; JPX62-198632 19870807; JPX62-198633 19870807; JPX62-198634 19870807
- 主分类号: G01C21/30
- IPC分类号: G01C21/30 ; G09B29/10
摘要:
Disclosed is a travel path displaying apparatus for indicating the current position of an automobile running on a selected road in a road map appearing on an associated screen. A cumulation of errors in estimating sequential current positions will cause an incorrect indication of the automobile's position on the screen and the automobile will depart from all the roads appearing on the screen. In order to find the correct road on which the automobile is traveling it is necessary to carry out pattern matching between the travel trace and each of a number of selected roads, thereby determining which road is closest to the travel trace in shape. The apparatus permits selection of the least possible number of roads for pattern matching, thus permitting quick determination as to the road on which the automobile is traveling and as to the direction in which it is traveling.
公开/授权文献
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