CAJ | 학술논문

将网格技术应用于地理信息领域，构建实现地理信息资源共享与协同工作的网格地理信息系统，是目前地理信息行业研究的热点之一。OGC制定的网络服务规范作为得到广泛支持的地理空间数据互操作规范。与网格技术的相关规范存在许多不兼容之处，使得OGC服务在网格体系下难于集成和管理。文章研究了OGC数据服务WMS，WFS和wCS的相关规范和OGSA—DAI网格中间件技术，提出将OGC数据服务扩展为OGSA—DAI的数据资源的方案，将WMS，WFS和WCS封装为符合WSRF的网格资源，实现分布式异构地理空间数据在OGSA—DAI框架下的访问、集成与管理。此方案提供了一种将OGC服务集成到网格环境中的方法，比较容易实现，对相关研发工作的开展具有很好的借鉴作用。
장망격기술응용우지리신식영역，구건실현지리신식자원공향여협동공작적망격지리신식계통，시목전지리신식행업연구적열점지일。OGC제정적망락복무규범작위득도엄범지지적지리공간수거호조작규범。여망격기술적상관규범존재허다불겸용지처，사득OGC복무재망격체계하난우집성화관리。문장연구료OGC수거복무WMS，WFS화wCS적상관규범화OGSA—DAI망격중간건기술，제출장OGC수거복무확전위OGSA—DAI적수거자원적방안，장WMS，WFS화WCS봉장위부합WSRF적망격자원，실현분포식이구지리공간수거재OGSA—DAI광가하적방문、집성여관리。차방안제공료일충장OGC복무집성도망격배경중적방법，비교용역실현，대상관연발공작적개전구유흔호적차감작용。
It is the research focus of geographic information industry applying grid technique in the field of geographic information and building grid geographic information system for the purpose of sharing and cooperation of geographic resource information. Web service specifications established by the Open Geospatial Consortium which are the widely suppoited interoperable standards ofgeospatial data, are incompatibie with grid technique specifications, making it difficult to be integrated and managed under the grid framework. This paper probes into the related specifications of OGC data service WMS, WFS, WCS and OGSA - DAI grid middleware technique, puts forward a plan to extend OGC data service to OGSA-DAI data resource. encapsulating WMS, WFS and WCS as WSRF-compliant grid resource in order to access, integrate and manage distributed heterogeneous geospatial data under OGSA framework. The proposed plan provides a method to integrate OGC service into grid environment which is easy to carry out and can be a helpful reference of related technological development.