Apparatus for displaying travel path

Details Apparatus for displaying travel path Apparatus for displaying travel path

G - Physics

01

D

354/15, 340/31,

G01D 7/00 (2006.01) G01C 21/28 (2006.01) G05D 1/02 (2006.01)

Patent

CA 1285042

ABSTRACT OF THE DISCLOSURE An apparatus for displaying a travel path of a running body in which a direction detector includes a geomagnetism sensor as well as a rate-type sensor, such as gyroscope or gas rate sensor (which includes a flow sensor for detecting a degree of displacement of a gas flow produced by an angular velocity applied thereto) for detecting an angular velocity of change of yawing direction of the moving body, in which a difference in angle between directions detected by the rate-type sensor and the geomagnetism sensor is found and temporarily stored when a power source is temporarily turned OFF during operation of the running path displaying apparatus, and then a declination of the direction detected by the geomagnetism sensor is corrected, depending upon the stored difference in angle, when the power source is turened ON again.

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