Title:
作業機械
Document Type and Number:
Japanese Patent JP7043471
Kind Code:
B2
Abstract:
To provide a work machine capable of estimating the position of the work machine more accurately than before in the event of an abnormality in a position detection device that detects the position of the work machine.SOLUTION: A first central processing unit 101 of a first control device 100 detects an abnormality in a first position detection device 40 that detects the position of a main body 10 of a work machine 1, and notifies a second control device 200. When the notification is given, a second central processing unit 201 of the second control device 200 moves a moving body 50, detects the position of the moving body 50 by a second position detecting device 60, and detects the relative position between the moving body 50 and the main body 10 by a relative position detecting device 70. After detecting the abnormality of the first position detection device 40, the first central processing unit 101 calculates the estimated position of the main body 10 based on the position of the moving body 50 and the relative position between the moving body 50 and the main body 10.SELECTED DRAWING: Figure 2
Inventors:
Yoshiyuki Kimoto
Koichi Shibata
Koichi Shibata
Application Number:
JP2019178826A
Publication Date:
March 29, 2022
Filing Date:
September 30, 2019
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
E02F9/26; E02F9/24
Domestic Patent References:
| JP2016224038A | ||||
| JP2019035326A | ||||
| JP2017207815A | ||||
| JP2018146457A |
Foreign References:
| WO2017131194A1 | ||||
| WO2019026169A1 | ||||
| WO2017170651A1 | ||||
| WO2017061516A1 |
Attorney, Agent or Firm:
Hiraki International Patent Office