US 11,954,604 B2
Maintenance operation assistance system
Toshiaki Kono, Tokyo (JP)
Assigned to Hitachi, Ltd., Tokyo (JP)
Appl. No. 17/053,601
Filed by Hitachi, Ltd., Tokyo (JP)
PCT Filed May 9, 2019, PCT No. PCT/JP2019/018603
§ 371(c)(1), (2) Date Nov. 6, 2020,
PCT Pub. No. WO2019/225342, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 2018-099289 (JP), filed on May 24, 2018.
Prior Publication US 2021/0080942 A1, Mar. 18, 2021
Int. Cl. G06N 5/02 (2023.01); G05B 23/02 (2006.01)
CPC G06N 5/02 (2013.01) [G05B 23/0283 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A maintenance operation assistance system, comprising:
a failure knowledge database in which failure knowledge data regarding a failure of an asset is recorded;
a failure knowledge coupling unit that reconstructs, as integrated failure knowledge data, a plurality of instances of partial failure knowledge data which is instances of the failure knowledge data created by being partially divided; and
an inspection procedure generation unit that presents an inspection procedure to a maintenance operator by using the integrated failure knowledge data,
wherein the failure knowledge coupling unit evaluates and adjusts a relatedness between description contents of instances of different partial failure knowledge data in nodes among the plurality of instances of partial failure knowledge data, and generates the failure knowledge data after reconstruction by connecting the instances of different partial failure knowledge data, and
the inspection procedure generation unit sets priorities when the inspection procedure is presented to the maintenance operator by the failure knowledge data after reconstruction, and presents the inspection procedure to a diagnostic interface unit based on the priorities.