Title:
NAVIGATION APPARATUS FOR MOVING BODY
Document Type and Number:
Japanese Patent JPH02212714
Kind Code:
A
Abstract:
PURPOSE:To detect the current own position accurately by performing a correction processing of an autonomous type data with the integration of a GPS data obtained in time series. CONSTITUTION:It is assumed that a moving body moves almost parallel with an X axis on a plate prescribed by rectangular coordinates comprising X and Y axes. Here, a curve 21 is a true moving path of the moving body, a curve 22 a moving path of the moving body determined by a GPS navigation operation and a curve 23 a moving path of the moving body determined by an autonomous type navigation operation. After the movement of the moving body is started, position/ time data (X0, Y0, Z0 and t0) based on a GPS navigation is stored and following the reception of a GPS, a three-dimensional measurement of positions is confirmed. Then, position/time data (X, Y, Z and t) of the moving object at the moment are stored to calculate a three-dimensional moving dis tance l of the moving body by the formula I. Then, the correction of a running distance value is performed with a running distance sensor 1 used in the opera tion of an autonomous type navigation operation, thereby detecting the current position accurately.
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Inventors:
YOSHITOSHI HIROSHI
Application Number:
JP3276389A
Publication Date:
August 23, 1990
Filing Date:
February 14, 1989
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G01C21/00; G01S5/02; G01S19/49; (IPC1-7): G01C21/00; G01S5/02
Attorney, Agent or Firm:
Mitsuteru Soga (4 outside)