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Patent Searching and Data


Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/060533
Kind Code:
A1
Abstract:
On the basis of an antenna installation location, a range of mobility of a work device, the attitude of an upper rotating body, and the azimuth of the upper rotating body, a controller in the present invention sets a range within which the work device can become an obstruction when an antenna receives positioning signals from a plurality of positioning satellites as a satellite mask range. If the controller has determined, on the basis of satellite positioning status data acquired from a receiver, that setting the satellite mask range will instead reduce the precision of positioning computation by the receiver, setting of the satellite mask range is cancelled. If setting of the satellite mask range has been cancelled, the receiver computes the location of the upper rotating body on the basis of the positioning signals transmitted from the plurality of positioning satellites.

Inventors:
IZUMI SHIHO (JP)
ISHIBASHI HIDETO (JP)
KOTAKE SHINICHI (JP)
ISHIHARA SHINJI (JP)
KANARI YASUHIKO (JP)
Application Number:
PCT/JP2020/036438
Publication Date:
April 01, 2021
Filing Date:
September 25, 2020
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F9/20; G01S19/28
Domestic Patent References:
WO2015181990A12015-12-03
Foreign References:
JP2016224038A2016-12-28
JP2016079677A2016-05-16
JP2017110998A2017-06-22
JP2007093483A2007-04-12
JPH04286976A1992-10-12
JPH0462490A1992-02-27
JPH07325141A1995-12-12
JP2016188792A2016-11-04
Attorney, Agent or Firm:
KAICHI IP (JP)
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