US 11,680,383 B2
Remote control system
Kazuhiro Ueda, Hiroshima (JP); Yoichiro Yamazaki, Hiroshima (JP); Seiji Saiki, Hiroshima (JP); and Ryota Hama, Hiroshima (JP)
Assigned to KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima (JP)
Appl. No. 17/55,005
Filed by KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima (JP)
PCT Filed May 9, 2019, PCT No. PCT/JP2019/018484
§ 371(c)(1), (2) Date Nov. 12, 2020,
PCT Pub. No. WO2019/225324, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. JP2018-097778 (JP), filed on May 22, 2018.
Prior Publication US 2021/0214918 A1, Jul. 15, 2021
Int. Cl. E02F 9/20 (2006.01); E02F 9/24 (2006.01); E02F 9/26 (2006.01); F02D 41/04 (2006.01); G05D 1/00 (2006.01); G08B 21/18 (2006.01); H04Q 9/02 (2006.01); H04W 84/20 (2009.01)
CPC E02F 9/205 (2013.01) [E02F 9/2004 (2013.01); E02F 9/2066 (2013.01); E02F 9/24 (2013.01); E02F 9/26 (2013.01); F02D 41/042 (2013.01); G05D 1/0011 (2013.01); G08B 21/187 (2013.01); H04Q 9/02 (2013.01); H04W 84/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A remote operation system for remotely operating a construction machine including an operation member, the remote operation system comprising:
a master operation device configured to remotely operate the construction machine; and
a slave operation device mounted on the construction machine and configured to operate the construction machine based on an operation received by the master operation device,
wherein the master operation device includes:
a remote operation member configured to receive an operation of an operator;
a first sensor configured to detect an operation amount of the remote operation member;
a first communication unit configured to transmit the operation amount detected by the first sensor to the slave operation device; and
a warning device configured to issue an alarm,
the slave operation device includes:
a second communication unit configured to receive the operation amount transmitted from the master operation device;
an operation mechanism configured to directly operate the operation member of the construction machine;
a second sensor configured to detect an operation amount of the operation member of the construction machine; and
a slave side controller configured to control the operation mechanism to operate the operation member of the construction machine with the operation amount received by the second communication unit, and
on detection of a difference between the operation amount detected by the second sensor and the operation amount received by the second communication unit, the slave side controller executes at least one of stop control to automatically stop the construction machine and alarm control to cause the warning device to issue the alarm.
 
6. A remote operation system for remotely operating a construction machine including an operation member, the remote operation system comprising:
a master operation device configured to remotely operate the construction machine; and
a slave operation device mounted on the construction machine and configured to operate the construction machine based on an operation received by the master operation device,
wherein the master operation device includes:
a remote operation member configured to receive an operation of an operator;
a first sensor configured to detect an operation amount of the remote operation member;
a first communication unit configured to transmit the operation amount detected by the first sensor to the slave operation device; and
a warning device configured to issue an alarm,
the slave operation device includes:
a second communication unit configured to receive the operation amount transmitted from the master operation device;
an operation mechanism configured to directly operate the operation member of the construction machine;
a second sensor configured to detect an operation amount of the operation member of the construction machine; and
a slave side controller configured to control the operation mechanism to operate the operation member of the construction machine with the operation amount received by the second communication unit, and
the master operation device further includes a master side controller that executes at least one of stop control to automatically stop the construction machine and alarm control to cause the warning device to issue the alarm on detection of a difference between the operation amount detected by the first sensor and the operation amount received by the first communication unit.