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)
SAKAMOTO HIROSHI (JP)
KUROKAMI KAZUSHIGE (JP)
Application Number:
PCT/JP2018/045991
Publication Date:
June 20, 2019
Filing Date:
December 13, 2018
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
G01S19/14; E02F9/24; E02F9/26; G01S19/51; G08B21/02
Foreign References:
JP2003105807A | 2003-04-09 | |||
JP5835577B2 | 2015-12-24 | |||
JP2014031660A | 2014-02-20 | |||
JP2012053515A | 2012-03-15 | |||
JPH07168985A | 1995-07-04 | |||
JPS509139B1 | 1975-04-10 | |||
JPS5835577B2 | 1983-08-03 | |||
JP3085662B2 | 2000-09-11 | |||
JPS5520688B2 | 1980-06-04 |
Other References:
See also references of EP 3660541A4
Attorney, Agent or Firm:
KAICHI IP (JP)
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