基于远距离工业通信的空间数据库建模方法研究  

Spatial database modeling method study based on remote industrial communication

作　　者：袁灿[1] 崔晓燕[1] 

机构地区：[1]北京邮电大学自动化学院,北京100876

出　　处：《计算机应用研究》2008年第11期3379-3381,共3页Application Research of Computers

基　　金：国家科技基础条件平台建设资助项目(2005DKA32900)

摘　　要：为适应远距离工业通信数据显著的空间特征和复杂的结构特征,在现有空间数据库技术的基础上,充分考虑专业工程技术人员的实际需要,提出了基于远距离工业通信领域数据资源共享的空间数据库建模方法。该模型定义了一组基于关系型的适应远距离工业通信网络运行规则的层次结构,并引入了QR-树的空间索引机制。其结果表明,该模型不仅能较好地解决分类误差,而且其索引机制与传统索引机制相比有较高的检索、插入与删除等操作性能。To adapt to the obvious spatial characteristic and complex structure of the remote industrial communication data, proposed the spatial database modeling method based on sharing data resources of the remote industrial communication field. The model took full consideration to the needs of engineers and technicians, and it defined a set of hierarchical structure based on the relational data model, which was designed to match the remote industrial communication network operating rules. Moreover, established a QR-tree spatial index mechanism. Finally, the result indicated that solved classification error, and compared with the traditional indexing mechanism, presented a better operating performance of retrieval, insertion and deletion.

关 键 词：空间数据库 地理信息系统 R-树 QR-树 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]