国家级地质灾害气象预警服务模型设计与应用  

DESIGN AND APPLICATION OF NATIONAL RAIN-INDUCED GEOLOGICAL HAZARDS EARLY WARNING SERVICES MODEL

作　　者：薛群威[1] 罗显刚[2] 

机构地区：[1]中国地质环境监测院,北京100081 [2]中国地质大学信息工程学院,湖北武汉430074

出　　处：《计算机应用与软件》2012年第8期90-94,共5页Computer Applications and Software

基　　金：国家高技术研究发展计划项目(2002AA134010);国家科技支撑计划项目(2007BAC29B05);国家国土资源调查计划项目(1212010650204)

摘　　要：国家级地质灾害气象预警服务模型是基于空间信息网格理念的六层结构模型,强调数据和计算统一抽象为资源,强调数据资源迁移和数据处理分析资源迁移的一致性。建立基于节点平均吞吐率、处理器利用率和内存占用率的节点负载指数概念,4节点负载指数样本独立性检验结果表明,节点负载差异性不显著,达到均衡目的。预警服务应用实例表明,预警服务比桌面预警系统时间效率提高40%。National rain-induced geological hazards early warning services model is a six-layer model based on spatial information grid idea. The model emphasizes that both data and computing are abstracted as resources, and both data resources migration and data process analysis resources migration ought to be consistent. The node load index concept is defined based on node average throughput rate, processor utilization and memory usage. Independent test results with 4 nodes load index sample show that the nodes load difference is not significant, thus load balance requirement is reached. Early warning services application tells us early warning service improves time efficiency by 40% compared to desktop early warning systems.

关 键 词：服务 负载均衡 虚拟化 Lilliefors检验 秩和检验 地质灾害预警 空间信息网格 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]