Title:
異常検知方法および搬送装置
Document Type and Number:
Japanese Patent JP7449732
Kind Code:
B2
Abstract:
To provide a technology capable of identifying, in a carrying device, a measured item relating to an abnormality among the measured items of a plurality of sensors.SOLUTION: First, measured values D2 of a plurality of measured items obtained from a plurality of sensors 30 are taken as input variables, and with an actual measured value D1 of an objective variable being as teacher data, an already-learnt model M that outputs an estimated value of the objective variable relative to the input variable is created. Next, the already-learnt model M is updated by an additional learning while a carrying device is being operated. Subsequently, for each of the plurality of measured items, a change in influence on the already-learnt model M before and after the updating is calculated. Eventually, on the basis of the change in influence, the measured item relating to the abnormality of the carrying device is identified.SELECTED DRAWING: Figure 4
Inventors:
Hiroaki Usumoto
Application Number:
JP2020045219A
Publication Date:
March 14, 2024
Filing Date:
March 16, 2020
Export Citation:
Assignee:
Screen Holdings Co., Ltd.
International Classes:
G05B23/02; B41J11/42; B41J15/04; B65H26/02
Domestic Patent References:
| JP2004165282A | ||||
| JP2009009299A | ||||
| JP2014189337A | ||||
| JP2012220978A | ||||
| JP2013041448A | ||||
| JP2019028565A | ||||
| JP2019016209A |
Attorney, Agent or Firm:
Takami Nishida