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| 农业数据网格体系研究 | |
| 引用本文： | 吴华瑞,孙想.农业数据网格体系研究[J].农业工程学报,2006,22(11):183-186. |
| 作者姓名： | 吴华瑞 孙想 |
| 作者单位： | 1. 国家农业信息化工程技术研究中心,北京,100097;北京工业大学计算机学院,北京,100022 2. 国家农业信息化工程技术研究中心,北京,100097 3. 北京工业大学计算机学院,北京,100022 |
| 基金项目： | 国家科技攻关计划;科技部农业科技成果转化基金 |
| 摘 要： | 由于农业数据具有地理分布、异构和动态等特性，网络环境下农业数据的分发组织和高效能处理是一个非常复杂且具有挑战性的问题。该文设计了层次式的农业数据网格系统软件体系结构；研究了基于时空本体的农业元数据建模、农业数据空间聚类与映射、多系统信息协同和层次访问控制机制等关键技术；构建了农业数据网格节点应用环境。测试检验结果表明，所设计的农业数据网格体系具有良好的网络高性能传输能力。 |
| 关 键 词： | 数据网格 网格体系 农业数据 元数据 信息协同 |
| 文章编号： | 1002-6819（2006）11-0183-04 |
| 收稿时间： | 2006-08-19 |
| 修稿时间： | 2006-08-192006-11-08 |
Architecture of agricultural data grid system |
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| Wu Huarui and Sun Xiang.Architecture of agricultural data grid system[J].Transactions of the Chinese Society of Agricultural Engineering,2006,22(11):183-186. | |
| Authors: | Wu Huarui and Sun Xiang |
| Institution: | National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China;National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China |
| Abstract: | High performance processing of agricultural data in the grid environment is a complex and difficult problem, mainly due to agricultural data geographic distribution, heterogeneity and variety. A multi-layered software architecture for agricultural data grid system was designed. Agricultural meta-data model based spatio-temporal ontology, spatial clustering and mapping for agricultural data, information cooperation, role-based access control were researched. The application environment of agricultural data grid node was constructed. The inspection experiment indicates that the agricultural data grid system provides high performance computation and communication capability. |
| Keywords: | data grid grid system agricultural data metadata information cooperation |
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