摘要
针对我国目前城市道路交通实时状况监测系统数据库未能较好地满足对数据处理的需要,在全面分析道路交通实时状况监测系统对数据需求的基础上,对数据类型进行了划分归类、对数据处理流程进行了分析,设计了数据库的概念结构并介绍了逻辑结构设计的方法和物理设计的注意事项,为设计开发或改进现有城市道路交通实时状况监测系统数据库提供理论参考。
Existing Real-Time Monitoring System database of Urban Road Traffic couldn t better meet the needs of data processing.In order to overcome this deficiency,the data was classified according to the type and the data flow was analyzed in this paper,based on comprehensive data requirements analysis of it.Then this paper designed Concep- tual Data Model and introduced methods of Logical Database Design and essentials of Physical Data Model,which was provided with theoretical reference for the design or improvem...
出处
《道路交通与安全》
2009年第6期28-33,共6页
Road Traffic & Safety
关键词
数据库技术
城市道路交通实时状况监测系统
数据流程
ER图
database technology
Real-Time Monitoring System of Urban Road Traffic
data flow
Entity-Relationship model
