The various functions of railway traction power supply supervisory system are based
on a database. While the database system, the performance of which will influence the
performances of the supervisory systemgreatly, is one of the most important components in the
traction power supply supervisory software. Based on the operational characteristics of the
supervisory system, this paper focuses its discussion on the data model, database structure,
database design and creation of the traction power supply supervisory system respectively.
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