US 12,392,112 B2
Work machine state monitoring system and work machine state monitoring method
Masaru Ito, Higashihiroshima (JP); and Yuichi Kurita, Higashihiroshima (JP)
Assigned to Kobelco Construction Machinery Co., Ltd., Hiroshima (JP); and Hiroshima University, Hiroshima (JP)
Appl. No. 18/007,818
Filed by KOBELCO CONSTRUCTION MACHINERY CO., LTD., Hiroshima (JP); and HIROSHIMA UNIVERSITY, Higashihiroshima (JP)
PCT Filed May 20, 2021, PCT No. PCT/JP2021/019270
§ 371(c)(1), (2) Date Dec. 2, 2022,
PCT Pub. No. WO2021/246190, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 2020-097595 (JP), filed on Jun. 4, 2020.
Prior Publication US 2023/0228064 A1, Jul. 20, 2023
Int. Cl. E02F 9/26 (2006.01); E02F 3/32 (2006.01)
CPC E02F 9/26 (2013.01) [E02F 3/32 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A machine state monitoring system for causing an information output device to transmit a state of a work machine to an operator of the work machine, the work machine having a base body, a work mechanism extending from the base body, and a work part attached to a distal end of the work mechanism, the machine state monitoring system comprising: a machine state recognition element which recognizes an attitude of the base body, and an external force acting on the work part; an instability degree assessment element which assesses one of a first instability degree, which is assessed using a criterion that the base body does not float up from the ground, and a second instability degree, which is assess using a criterion that the base body does not slide with respect to the ground; and an output control element which causes the information output device to output instability degree information such that a form of output of the instability degree information varies continuously depending on a continuous change in the larger of the first instability degree and the second instability degree, the instability degree information indicating the larger of the first instability degree and the second instability degree of the base body assessed by the instability degree assessment element; wherein the output control element causes an image output device constituting the information output device to output a diagram showing the instability degree of the base body such that a form of the diagram varies continuously based on a threshold value of the instability degree as a criterion.