Process Tag Identification Using Units, Limits, and Tag Types
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Solution Overview
Problem
Distributed control system manufacturers lack the chemical engineering knowledge to utilize tag data for purposes beyond monitoring and control, as they cannot determine the correspondence between arbitrarily set tag names and process values without user intervention, limiting the data's usage.
Innovation Solution
A tag identification device and method that automatically identifies the correspondence between tag names and process values by using a processor to extract and match tag data with predefined criteria from definition information, allowing for the selection and identification of relevant process values based on actual measurement values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tag names are arbitrarily set by end users for ease of understanding, then ease of operation is improved, but loss of information occurs because the correspondence between tag names and process values cannot be determined automatically
Solution Approach 1:
The patent introduces definition information as an intermediary that bridges tag names and process values. This definition information contains metadata such as engineering units, upper/lower limit values, and tag types that enable automatic identification of the correspondence relationship without requiring user intervention, thus resolving the information loss while maintaining ease of operation
Solution Approach 2:
The patent replaces the manual mechanical process of users querying and determining tag correspondences with an automated information processing system. The processor automatically identifies process values by comparing definition information (engineering units, limit values, tag types) with actual measurement data, eliminating the need for user intervention and preventing information loss
2Adaptability or versatility
If distributed control system manufacturers acquire chemical engineering knowledge to utilize tag data for purposes beyond monitoring and control, then adaptability is improved, but device complexity increases due to the need for user interaction and knowledge acquisition
Solution Approach 1:
The patent enables the distributed control system to automatically identify and utilize tag data correspondences through self-service mechanisms. The processor autonomously compares definition information with actual measurement data to establish tag-process value relationships, eliminating the need for manufacturers to acquire chemical engineering knowledge or interact with users, thus improving adaptability without increasing complexity
Solution Approach 2:
The patent implements preliminary action by pre-defining tag information including engineering units, upper/lower limit values, and tag types in the definition information. This preliminary structuring of data enables automatic identification processes to work effectively without requiring later user intervention or specialized domain knowledge, resolving the contradiction between adaptability and complexity
Data Source
AI summary
A tag identification device automatically identifies a correspondence relationship between a tag name arbitrarily set by a user and a process value. The tag identification device includes a processor, in a first process, that obtains first definition information in which the tag name, a type of tag data which is handled using the tag name, an upper limit value, an lower limit value, and an engineering unit are defined for each tag. The processor extracts, from the first definition information, a tag coinciding with at least one of the type of tag, the upper limit value, the lower limit value, and the engineering unit of a predetermined first process value. The processor selects the tag data handled using the tag name defined for the extracted tag, using an actual measurement value of the tag data. The processor identifies the selected tag data as the first process value.