Summarization retrieval in a process control environment
AssigneeAveva Software, LLC
InventorsAlexander Vasilyevich Bolotskikh, Vinay T. Kamath, Yevgeny Naryzhny, Abhijit Manushree
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Abstract
Operational historian system retrieving summary data values and source data values based on alignment between a summarization cycle duration and a query cycle duration. A retrieval service process executing on a historian device utilizes a summarization cycle duration, including start and/or end times thereof, and a query cycle duration, including start and/or end times thereof, to determine whether to retrieve, via a communications network, source tag data and/or summary tag data from memory storage devices.
Claims21
1-20. (canceled)
A system for improving bandwidth usage of a communications network comprising:
- one or more historians comprising one or more computers, the one or more computers comprising one or more processors and one or more non-transitory computer readable media, the one or more non-transitory computer readable media comprising program instructions stored thereon that when executed cause the one or more computers to:
- receive, by the one or more processors, a query for source tags from a query source;
- retrieve, by the one or more processors, summary tags corresponding to the queried source tags;
- determine, by the one or more processors, if a summarization cycle is less than a query cycle;
- if the summarization cycle is less than the query cycle, then:
- determine, by the one or more processors, if the query cycle aligns with the summarization cycle;
- if the query cycle aligns with the summarization cycle, then:
- retrieve, by the one or more processors, summary data using the summary tags for aligned periods.
Dependencies are inferred from the claim text.