Title:
RUNNING POSITION DISPLAY DEVICE FOR MOVING BODY
Document Type and Number:
Japanese Patent JPH02222807
Kind Code:
A
Abstract:
PURPOSE:To enable accurate correction of the current position of a moving object even when the moving object runs off a road on a map by searching a road within a range in the perimeter of the current position on a road map to extract a data thereof. CONSTITUTION:A map accessed properly is projected on a screen of a display device 7 while the current position on X-Y coordinates is determined every second by a computation with a signal processor 3 according to a running of a moving object. The results of the computation are sent to the device 7 sequentially while being fed to a moving locus memory 4 to be stored and held. The contents of the memory are always read to be sent to the device 7 continuously. Here, a deviation between a data value of a position involved in a road of the map in which digital information is stored and a data value of a running locus of the moving object is judged with a device 3 under a fixed reference. When the deviation grows larger than a fixed reference, the current position of the moving body displayed on the map and a running locus thus given are corrected automatically to be always on the map according to a data value of the road.
Inventors:
YASUI SHINICHIRO
Application Number:
JP18791589A
Publication Date:
September 05, 1990
Filing Date:
July 20, 1989
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
G01C21/00; (IPC1-7): G01C21/00
Domestic Patent References:
| JPS58129313A | 1983-08-02 | |||
| JPS59191083A | 1984-10-30 |
Attorney, Agent or Firm:
Kiyoshi Torii