Tags###Stream Data Schema for Real-time Data Stream Manager
###Streaming Information
-
Type: Environmental data: temperatures, pressures, salinity, acidity, fluid velocities etc,
- Nature:
- Relational Stream: yes
- Text stream: no
-
Origin: Data is produced by sensors in oil wells and on oil and gas platforms equipments. Each oil platform has an average of 400,000.
- Frequency of update:
- from sub-second to minutes
- In triples/minute: [10000-10] t/min
-
Quality: It varies, due to instrument/sensor issues
- Management /access
- Technology in use: Dedicated (relational and proprietary) stores
- Problems: The ability of users to access data from different sources is limited by an insufficient description of the context
- Means of improvement: Add context (metadata) to the data so it become meaningful and use reasoning techniques to process that metadata
###[optional] Static Information required to interpret the streaming information
-
Type: Topology of the sensor network, position of each sensor, the descriptions of the oil platform
-
Origin: Oil and gas production operations
- Dimension:
- 100s of MB as PostGIS dump
- In triples: 10^8
-
Quality: Good
- Management /access
- Technology in use: RDBMS, proprietary technologies
- Available Ontologies and Vocabularies: Reference Semantic Model (RSM), based on ISO 15926
References
[1] W3C, Use cases - RDF Stream Processing Community Group, link