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Data Scalability Design for Multi-Satellite Management based on E-R Model |
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PP: 165-170 |
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Author(s) |
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Jungkeun Park,
Trung Kien Nguyen,
Do Dang Thach,
Ok-Chul Jung,
Chang-Joo Moon,
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Abstract |
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| We propose a Multi-Satellite Data Model (MSDM) for the efcient database management of multi-satellite ground control
systems; the paper also explains a satellite control data management method using MSDM. The MSDM can manipulate various data
attributes without modifying the entity structure by adding tuples instead of new attributes to tables when a new data attribute is required
for a specic satellite. Data for retired satellites are only used for analysis purposes. We propose a backup method that selects data for
retired satellites by using SQL and backs them up in an analyzable table. In addition, we propose an SQL statement for nding candidate
attributes that should be added or deleted according to continuous satellite launches and retirements. For the metadata specication in the
attribute table, XML schema is dened and the semantics and characteristic information of the extended data are described using XML
tag information. |
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