Selective Log Data Distribution for Facility Failure Diagnosis
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Solution Overview
Problem
When outsourcing the diagnosis of a facility's operation state, existing techniques unconditionally transmit data, risking the leakage of confidential manufacturing data and compromising its confidentiality.
Innovation Solution
A data distribution control apparatus and method that selectively transmits log data by storing attribute information about the relevance of data users to potential facility failures, allowing only relevant users to receive log data upon a failure occurrence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If log data is unconditionally transmitted to all data users, then all users can access the data for analysis, but the confidentiality of log data is compromised due to unnecessary data exposure
Solution Approach 1:
The patent applies local quality by differentiating data access rights for different users based on their specific relevance to failure types. Each data user is assigned attribute information that defines which failure types they are authorized to access, ensuring that each user receives only the data locally relevant to their diagnostic needs rather than universal access to all data
Solution Approach 2:
The patent segments the data access rights by dividing the user base into different categories based on their relevance to specific failure types. The attribute information storage function segments access permissions, and the selection function segments data transmission to specific user groups, preventing unconditional access while maintaining necessary accessibility
2Object-affected harmful factors
If log data is selectively transmitted only to relevant data users, then data confidentiality is maintained, but the system complexity increases due to attribute information management
Solution Approach 1:
The patent applies preliminary action by pre-storing attribute information that defines the relevance between data users and failure types before actual data transmission occurs. This pre-established attribute information enables rapid selection of relevant users when failures occur, avoiding complex real-time analysis and reducing system operational complexity
Solution Approach 2:
The patent introduces attribute information as an intermediary element that mediates between the log data and data users. This intermediary layer simplifies the selection process by providing a clear mapping between failure types and relevant users, reducing the complexity of direct user-data matching
Data Source
AI summary
The confidentiality of data is maintained in a case where analysis of an operation state of a facility is entrusted to the outside. An embodiment of the present invention is configured to chronologically store log data in a first storage medium, and store attribute information indicating a relevance between a type of a failure expected to occur in a facility and each of a plurality of data users; The embodiment is further configured to select, at the occurrence of a failure in the facility, a data user who has a relevance to a type of the failure from among the plurality of data users based on the attribute information, selectively read log data relating to an operation state of the facility in which the failure has occurred, and transmits the read log data to the selected data user.