Title:
GUIDE FOR MOBILE WORKING VEHICLE
Document Type and Number:
Japanese Patent JPH01206412
Kind Code:
A
Abstract:
PURPOSE:To improve adaptability with respect to the unevenness of ground by measuring the distance from a mobile working vehicle to a reference point by means of an ultrasonic wave. CONSTITUTION:A couple of ultrasonic wave oscillators 3 and 4 are arranged near the side edges of the right and left sections of the reciprocating direction of a working section 1 with setting a reference line (c) to cross with respect to the reciprocating direction. A couple of ultrasonic wave oscillators 3 and 4 are caused to alternately generate the waves with providing a specified time difference, and a distance-measuring device 5 provided on the working vehicle 2 receives the waves, whereby the distances between the mobile vehicle 2 and respective ultrasonic wave oscillators 3 and 4 are measured. The position of the working vehicle 2 is decided from a triangle in which the know distance between the ultrasonic wave oscillators 3 and 4 is set to the base.
Inventors:
KANEFUJI YUJI
Application Number:
JP3163688A
Publication Date:
August 18, 1989
Filing Date:
February 12, 1988
Export Citation:
Assignee:
ISEKI AGRICULT MACH
International Classes:
G05D1/02; A01B69/00; (IPC1-7): A01B69/00; G05D1/02