PREDICTION METHOD AND SYSTEM FOR MULTIVARIATE TIME SERIES DATA IN MANUFACTURING SYSTEMS
Patent №
US 11,619,932
Granted
2023-04-04
Filed 2021
Owner
ACCENTURE GLOBAL SOLUTIONS LIMITED
Lab
—
AI components
4
ml · kr · planning · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
17229306
The present disclosure describes a method of controlling a manufacturing system using multivariate time series, the method comprising: recording data from one or more devices in the manufacturing system; storing the recorded data in a data storage as a plurality of time series, wherein each time series has a first recorded value corresponding to a first time and a final recorded value corresponding to an end of the time series; interpolating, within a first time window, missing values in the plurality of time series using a Bayesian model, wherein the missing values fall between the first and end time of the respective time series; storing the interpolated values as prediction data in a prediction storage, wherein the interpolated values include the uncertainty of each interpolated value; loading the recorded data that fall within a second time window from the data storage; loading prediction data from the prediction storage that fall within the second time window and for which no recorded data are available; optimizing the parameters of the Bayesian model using the loaded recorded data and the prediction data; predicting, using the Bayesian model, values for each of the time series for which loaded recorded and prediction data are not available; storing the predicted values as prediction data in the prediction storage, wherein the prediction values include the uncertainty of each prediction value; and adjusting one or more of the devices that generate the recorded data based on the prediction data within the second time window.
AI classification
Ownership
ACCENTURE GLOBAL SOLUTIONS LIMITED
assignment · 559060265
Assignors
MURAI, MAKOTO, MORIGA, SHIN, SUYAMA, ATSUSHI, HAYASHI, MOTOAKI, KUDO, TAKUYA
On an employer assignment, the assignors are typically the inventors.