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Patent Searching and Data


Title:
WORKING MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/117268
Kind Code:
A1
Abstract:
According to the present invention, worker tags for transmitting a radio signal, including a magnetic field ID, a tag ID, and position information obtained by a GNSS reception unit, when a magnetic field signal generated by a magnetic field generation device provided in a hydraulic shovel is received are carried by an operator of the hydraulic shovel and a worker performing work outside the hydraulic shovel, the positions of the worker tags are calculated on the basis of hydraulic shovel position information obtained from a GNSS reception device and the worker tag position information, and when a worker tag is detected in an access notification target area, a notification command for notifying the detection of the worker tag to the operator of the hydraulic shovel is generated and output to a notification device provided in an operation cab. Accordingly, the approach of workers to the working machine can be accurately detected, and excessive alarms can be prevented.

Inventors:
MIZUOCHI MARIKO (JP)
SAKAMOTO HIROSHI (JP)
KUROKAMI KAZUSHIGE (JP)
Application Number:
PCT/JP2018/045991
Publication Date:
June 20, 2019
Filing Date:
December 13, 2018
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
G01S19/14; E02F9/24; E02F9/26; G01S19/51; G08B21/02
Foreign References:
JP2003105807A2003-04-09
JP5835577B22015-12-24
JP2014031660A2014-02-20
JP2012053515A2012-03-15
JPH07168985A1995-07-04
JPS509139B11975-04-10
JPS5835577B21983-08-03
JP3085662B22000-09-11
JPS5520688B21980-06-04
Other References:
See also references of EP 3660541A4
Attorney, Agent or Firm:
KAICHI IP (JP)
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