US 12,436,544 B2
Work assistance system and work assistance composite system
Yuki Morita, Hiroshima (JP); Yusuke Fujiwara, Hiroshima (JP); Kazuhiro Ueda, Hiroshima (JP); and Yoichiro Yamazaki, Tokyo (JP)
Assigned to Kobelco Construction Machinery Co., Ltd., Hiroshima (JP)
Appl. No. 18/272,932
Filed by KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima (JP)
PCT Filed Dec. 13, 2021, PCT No. PCT/JP2021/045801
§ 371(c)(1), (2) Date Jul. 18, 2023,
PCT Pub. No. WO2022/168443, PCT Pub. Date Aug. 11, 2022.
Claims priority of application No. 2021-014768 (JP), filed on Feb. 2, 2021.
Prior Publication US 2024/0248492 A1, Jul. 25, 2024
Int. Cl. G05D 1/689 (2024.01); B64U 10/14 (2023.01); B64U 101/20 (2023.01); E02F 9/24 (2006.01); E02F 9/26 (2006.01); G05D 101/20 (2024.01); G05D 105/05 (2024.01); G05D 109/20 (2024.01)
CPC G05D 1/689 (2024.01) [E02F 9/24 (2013.01); E02F 9/26 (2013.01); B64U 10/14 (2023.01); B64U 2101/20 (2023.01); G05D 2101/20 (2024.01); G05D 2105/05 (2024.01); G05D 2109/20 (2024.01)] 9 Claims
OG exemplary drawing
 
1. A work assistance system comprising:
a first assistance process element which recognizes respective positions of a worker and a work machine in a time series manner and which recognizes a first designated region which is defined based on the time series of the position of the work machine; and
a second assistance process element which moves an unmanned aircraft to a position facing the position of the worker in a downward direction, the position of the worker being recognized by the first assistance process element, by controlling a flight action function of the unmanned aircraft, and which causes the unmanned aircraft to project a sign image representing a moving manner of the work machine onto a peripheral region of the worker, the moving manner being defined based on a time series of the position of the work machine, the position of the work machine being recognized by the first assistance process element, by controlling a sign projection function of the unmanned aircraft based on a requirement that the position of the worker recognized by the first assistance process element is included in the first designated region,
wherein a size of the first designated region is defined in accordance with a spatially occupying volume or a magnitude of expansion of the work machine and/or a level of a moving speed of the work machine.