Title:
GUIDE FOR MOBILE WORKING VEHICLE
Document Type and Number:
Japanese Patent JPH01206411
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 ultrasonic wave oscillator and deciding a position. CONSTITUTION:A couple of ultrasonic oscillators 3 and 4 are arranged near the side edges of right and left sections of an intermediate part in the reciprocating direction of a working section 1 with setting a reference line (c) to cross in the reciprocating direction. Whenever the command ultrasonic wave transmission device 6 of the working vehicle 2 periodically generates command wave, the ultrasonic wave oscillators 3 and 4 generate the ultrasonic waves. With measuring a time from when the command wave is generated to when the ultrasonic wave is received, an ultrasonic wave distance-measuring device 5 measures the distance between the working vehicle 2 and respective ultrasonic wave oscillators 3 and 4. Thus, the position of the working vehicle 2 is decided from a triangle in which the known distance between the ultrasonic wave oscillators 3 and 4 is set to the base.
Inventors:
KANEFUJI YUJI
Application Number:
JP3163588A
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