US 11,989,011 B2
Display system, display method, and non-transitory computer-readable recording medium recording display program for checking cause of abnormality
Toshifumi Minemoto, Kyoto (JP); Reiko Hattori, Kyoto (JP); Yuya Ota, Kyotanabe (JP); Shinsuke Kawanoue, Kyoto (JP); and Akira Nakajima, Otsu (JP)
Assigned to OMRON Corporation, Kyoto (JP)
Appl. No. 17/269,535
Filed by OMRON Corporation, Kyoto (JP)
PCT Filed Feb. 3, 2020, PCT No. PCT/JP2020/003870
§ 371(c)(1), (2) Date Feb. 19, 2021,
PCT Pub. No. WO2020/183975, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 2019-045646 (JP), filed on Mar. 13, 2019.
Prior Publication US 2021/0200194 A1, Jul. 1, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G05B 19/418 (2006.01); G05B 23/02 (2006.01)
CPC G05B 19/41875 (2013.01) [G05B 19/4183 (2013.01); G05B 23/0221 (2013.01); G05B 2219/32368 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A display system provided in production equipment that produces a product and has at least one driving means for driving the production equipment and at least one monitoring means for monitoring the production, in which the driving means and the monitoring means have at least one controllable feature, the display system comprising:
a control unit;
a display unit; and
a storage unit,
wherein the control unit
obtains the feature output over time from at least one among the driving means and the monitoring means and causes the storage unit to store the feature,
constructs, at each prescribed time, a causal relationship model that indicates at least one causal factor that is selected from the driving means and the monitoring means for at least one abnormality that can occur in the production equipment and a relationship between the causal factors based on the obtained feature, wherein the control unit is configured to construct a first causal relationship model at a first prescribed time and to construct a second causal relationship model at a second prescribed time after an elapse of a prescribed time interval from the first prescribed time; and
displays, on the display unit, a plurality of the causal relationship models constructed at a plurality of the times by displaying side by side the first causal relationship model constructed at the first prescribed time and the second causal relationship model constructed at the second prescribed time.