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Title:
OBSTACLE DETECTION SYSTEM FOR WORK VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/187883
Kind Code:
A1
Abstract:
Provided is an obstacle detection system for a work vehicle, with which the reduction of costs or labor required for preparatory work can be achieved. In an obstacle detection system for a work vehicle, three left-side and three right-side ultrasonic sensors 103A-103C, 104A-104C are disposed on the left and right sides of a work vehicle 1, respectively, and the measurement ranges Na-Nc thereof are continuous in the front and rear direction. In addition, a control unit 105 for distance measurement performs: position detection processing for detecting the position of an object with respect to the vehicle in the front and rear direction on the basis of a distance measurement operation of the ultrasonic sensors 103A-103C, 104A-104C having the continuous measurement ranges Na-Nc; and displacement detection processing for detecting the movement of the object in the front and rear direction on the basis of the distance measurement operation sequence of the ultrasonic sensors 103A-103C, 104A-104C having the continuous measurement ranges Na-Nc.

Inventors:
IWASE Takuya (1-32, Chayamachi, Kita-ku, Osaka-sh, Osaka 13, 〒5300013, JP)
YOKOYAMA Kazuhisa (1-32, Chayamachi, Kita-ku, Osaka-sh, Osaka 13, 〒5300013, JP)
SUGITA Shiro (1-32, Chayamachi, Kita-ku, Osaka-sh, Osaka 13, 〒5300013, JP)
Application Number:
JP2019/007166
Publication Date:
October 03, 2019
Filing Date:
February 26, 2019
Export Citation:
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Assignee:
YANMAR CO., LTD. (1-32, Chayamachi Kita-ku, Osaka-sh, Osaka 13, 〒5300013, JP)
International Classes:
G01S15/62; G01S15/93; G05D1/02
Domestic Patent References:
WO2011145141A12011-11-24
Foreign References:
JP2015191441A2015-11-02
KR20160103254A2016-09-01
JPH0277685U1990-06-14
Attorney, Agent or Firm:
MIYAJI Masahiro (Miotsukushi Patent Office, 5-1-1 Nishitemma, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
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