US 11,874,643 B2
Determination apparatus, determination system, determination method, and recording medium
Shuichi Ohsawa, Kanagawa (JP); Junichi Takami, Kanagawa (JP); Tomoki Umezawa, Kanagawa (JP); and Takafumi Horio, Kanagawa (JP)
Assigned to Ricoh Company, Ltd., Tokyo (JP)
Filed by Shuichi Ohsawa, Kanagawa (JP); Junichi Takami, Kanagawa (JP); Tomoki Umezawa, Kanagawa (JP); and Takafumi Horio, Kanagawa (JP)
Filed on Nov. 23, 2021, as Appl. No. 17/533,450.
Claims priority of application No. 2020-199131 (JP), filed on Nov. 30, 2020.
Prior Publication US 2022/0171365 A1, Jun. 2, 2022
Int. Cl. G05B 19/406 (2006.01); G05B 19/4065 (2006.01); G05B 19/4063 (2006.01); G05B 19/408 (2006.01)
CPC G05B 19/4065 (2013.01) [G05B 19/408 (2013.01); G05B 19/4063 (2013.01); G05B 2219/50276 (2013.01); G05B 2219/50308 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A determination apparatus comprising circuitry configured to:
receive operation information corresponding to an action being performed by a machine to be diagnosed and a detection signal of a physical quantity that changes according to the action of the machine;
take out, from the detection signal, an operation detection signal indicating that the machine is operating, based on the operation information;
extract feature information of the operation detection signal;
select, from the feature information, particular feature information to be compared with a plurality of reference feature information; and
determine a machining section of the machine in the feature information, based on the plurality of reference feature information and the particular feature information, wherein the machine is configured to perform an action including an outward movement and a return movement, and
wherein the circuitry is configured to perform a process of combining the operation information acquired in the outward movement with the operation information acquired in the return movement based on a determination that (a) a time from a stop of acquisition of the operation information of the outward movement to a start of acquisition of the operation information of the return movement is equal to or shorter than a threshold time and (b) the machine is in a predetermined operating state.