US 11,865,721 B2
Work determination apparatus and work determination method
Satoru Matsuoka, Tokyo (JP); Kiyoshi Maekawa, Tokyo (JP); Hideki Asoh, Ibaraki (JP); and Kensuke Harada, Ibaraki (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/299,785
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Dec. 19, 2019, PCT No. PCT/JP2019/049929
§ 371(c)(1), (2) Date Jun. 4, 2021,
PCT Pub. No. WO2020/158239, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 2019-017080 (JP), filed on Feb. 1, 2019.
Prior Publication US 2022/0016770 A1, Jan. 20, 2022
Int. Cl. B25J 9/16 (2006.01); B25J 13/08 (2006.01); G06N 3/049 (2023.01)
CPC B25J 9/1653 (2013.01) [B25J 9/1674 (2013.01); B25J 9/1687 (2013.01); B25J 13/085 (2013.01); B25J 13/089 (2013.01); G06N 3/049 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A work determination apparatus comprising:
a sensor data output circuit to output state data with an output interval of an integral multiple of a control period with which a motion of an industrial machine is controlled, the state data representing a state of work of the industrial machine; and
a determination circuit to determine a quality of the work of the industrial machine with the output interval for the state data by making an inference using a recurrent neural network with the output interval for the state data, based on the state data outputted from the sensor data output circuit,
wherein the output interval is determined such that an amount of movement of the, industrial machine is constant for each output interval.