GUIDE DISPLAY DEVICE AND CRANE EQUIPPED WITH SAME

Title:

GUIDE DISPLAY DEVICE AND CRANE EQUIPPED WITH SAME

Document Type and Number:

WIPO Patent Application WO/2021/193639

Kind Code:

A1

Abstract:

The present invention provides a guide display device capable of recognizing a feature in a work area while distinguishing whether the feature is a moving body or not. Furthermore, the present invention provides a crane equipped with the guide display device. In a guide display device (50) of a crane (1), 3D maps (M) are created for continuous frames (f･f･f･･･); an altitude value for each grid (G) in a 3D map (M) that is created at time closest to the current time is obtained as a first altitude value (En1); altitude values for respective corresponding grids (G) in a predetermined number of 3D maps (M) other than the 3D map (M) that is created at time closest to the current time are obtained, and the average of the altitude values is calculated as a second altitude value (En2); and it is determined that the feature is a moving body when the difference between the first altitude value (En1) and the second altitude value (En2) exceeds a predetermined threshold.

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Inventors:

ISHIKAWA IWAO (JP)
KOSAKA TAKAYUKI (JP)
MASHIMA KEITA (JP)
KUBOTA SATOSHI (JP)
TANAKA SHIGENORI (JP)
NAKAHARA MASAYA (JP)
NAKAHATA KOKI (JP)

Application Number:

PCT/JP2021/012004

Publication Date:

September 30, 2021

Filing Date:

March 23, 2021

Export Citation:

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Assignee:

TADANO LTD (JP)
THE SCHOOL CORPORATION KANSAI UNIV (JP)

International Classes:

G01C7/00; B66C13/00; B66C13/22

Foreign References:

JP2011099742A	2011-05-19
JP2006011880A	2006-01-12
JP2013221887A	2013-10-28
JP2019024151A	2019-02-14
JP2002366977A	2002-12-20
JP2011134234A	2011-07-07
JP2019024151A	2019-02-14

Other References: