Spatial database modeling method study based on remote industrial communication
基于远距离工业通信的空间数据库建模方法研究

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...