Site Data Meaning Estimation for Manufacturing Process Models

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Solution Overview

Problem

Existing technologies struggle to create a process model that defines the data structure of site data generated in manufacturing processes when the meaning of data items is unknown, as they require prior knowledge of data item meanings.

Innovation Solution

An information processing system estimates the meaning of data items in site data by selecting start-to-completion achievement data, estimating feature amounts, and comparing candidates to determine data items indicating predetermined meanings, enabling the creation of a process model.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If prior knowledge of data item meanings is required to create a process model, then the accuracy of the process model is improved, but the complexity of the system increases and the ease of operation deteriorates

Engineering Contradiction:
Improveaccuracy of process modelVSAvoidease of creating process model
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system enables automatic estimation of data item meanings by analyzing temporal correlations between data items without requiring manual input of meaning information. The processor automatically compares feature amounts and determines meanings based on start-to-completion achievements, allowing the system to serve itself rather than requiring external knowledge input

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary analysis of data item correlations by calculating feature amounts and identifying temporal patterns before the actual process model creation. This preliminary action of estimating meanings from data patterns prepares the necessary information structure in advance, eliminating the need for subsequent manual meaning assignment

Inventive Principle:
Principle #10Preliminary action

2Reliability

If manual specification of data item meanings is required, then the reliability of the process model is improved, but the productivity deteriorates due to increased time consumption

Engineering Contradiction:
Improvereliability of process modelVSAvoidproductivity of process model creation
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system replaces the manual mechanical process of specifying data item meanings with an automated information processing mechanism. The processor automatically estimates meanings by analyzing temporal correlations and comparing feature amounts, substituting human cognitive work with computational analysis that processes data patterns systematically and rapidly

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system uses feedback from temporal correlation analysis between data items to automatically refine and determine data item meanings. By continuously analyzing the relationships between data items and their temporal patterns, the system feedback-drivenly estimates meanings with increasing accuracy without requiring manual verification of each data item

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250356289A1Information processing system and information processing method
Publication Date: 2025.11.20 HITACHI LTD
  • US20250356289A1 patent drawing
  • US20250356289A1 patent drawing
  • US20250356289A1 patent drawing

AI summary

An information processing system holds: start-to-completion achievement data which is selected from site data relating to a process including tasks and in which a data item indicating a predetermined meaning is specified; and meaning estimation target data selected from the site data; estimates a candidate of a data item indicating the predetermined meaning from the data items of the meaning estimation target data based on a feature amount of the data item of the start-to-completion achievement data indicating the predetermined meaning and a feature amount of each data item included in the meaning estimation target data; and estimate a data item indicating the predetermined meaning from the candidates based on a result of the comparing the start-to-completion achievement data and the meaning estimation target data in a case in which the candidate is the data item indicating the predetermined meaning.