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01-Applied Mathematics & Information Sciences
An International Journal
               
 
 
 
 
 
 
 
 
 
 
 

Content
 

Volumes > Volume 9 > No. 1L

 
   

Data Scalability Design for Multi-Satellite Management based on E-R Model

PP: 165-170
Author(s)
Jungkeun Park, Trung Kien Nguyen, Do Dang Thach, Ok-Chul Jung, Chang-Joo Moon,
Abstract
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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