US 12,331,489 B2
Work machine and control system for work machine
Koji Shiwaku, Ibaraki (JP); and Shinya Imura, Ibaraki (JP)
Assigned to HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo (JP)
Appl. No. 17/907,777
Filed by HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo (JP)
PCT Filed Mar. 31, 2021, PCT No. PCT/JP2021/013842
§ 371(c)(1), (2) Date Aug. 29, 2022,
PCT Pub. No. WO2022/208725, PCT Pub. Date Oct. 6, 2022.
Prior Publication US 2023/0358024 A1, Nov. 9, 2023
Int. Cl. E02F 9/20 (2006.01); E02F 9/26 (2006.01); E02F 9/22 (2006.01)
CPC E02F 9/262 (2013.01) [E02F 9/2033 (2013.01); E02F 9/2203 (2013.01); E02F 9/2285 (2013.01); E02F 9/2296 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A work machine comprising:
a work area setting device adapted to set a work area for performing operation restriction control of a work machine;
an acquisition device adapted to acquire at least one of a position or an attitude of the work machine;
a controller adapted to switch between an enabled state, in which the operation restriction control of the work machine in the work area is enabled, and a disabled state, in which the operation restriction control of the work machine in the work area is disabled, and, when the operation restriction control is switched to the enabled state, perform the operation restriction control of the work machine in the work area; and
a designated area setting device adapted to set any given designated area in a worksite and set a relationship between whether the position of the work machine is included in the designated area and the enabled state or disabled state of the operation restriction control in the work area,
wherein the operation restriction control in the work area performs deceleration or stopping of an operation of the work machine when the work machine is included in a deceleration area or a stop area provided in the work area, and
wherein when the work machine moves and the position thereof is included in the designated area, the controller puts the operation restriction control in the work area to an enabled state or disabled state according to a setting of the relationship between whether the position of the work machine is included in the designated area and the enabled state or disabled state of the operation restriction control in the work area set in the designated area setting device.