A New Distributed Computing Model of Mobile Spatial Information Service Grid Based on Mobile Agent

摘要：

A new distributed computing model of mobile spatial information service is studied based on grid computing environment.Key technologies are presented in the model,including mobile agent (MA) distributed computing ,grid computing,spatial data model,location based service (LBS),global positioning system (GPS),code division multiple access (CDMA),transfer control protocol/internet protocol (TCP/IP),and user datagram protocol (UDP).In order to deal with the narrow bandwidth and instability of the wireless internet,distributed organization of tremendous spatial data,limited processing speed and low memory of mobile devices,a new mobile agent based mobile spatial information service grid (MSISG) architecture is further proposed that has good load balance,high processing efficiency,less network communication and thus suitable for mobile distributed computing environment.It can provide applications of spatial information distributed computing and mobile service.The theories and technologies architecture of MSISG are built originally from the base,including spatial information mobile agent model,distributed grid geographic information system (GIS) server model,mobile agent server model and mobile GIS client model.An application system for MSISG is therefore developed authorship by visual c++ and embedded visual c++.A field test is carried out through this system in Shanghai,and the results show that the proposed model and methods are feasible and adaptable for mobile spatial information service.

关键词： distributed computing grid computing mobile spatial information service grid mobile agent wireless communication

作者: TIAN Gen LIU Miao-long

作者单位: Department of Geo-informatics,Henan Polytechnic University,Jiaozuo Henan 454003,China Department of Surveying and Geo-informatics,Tongji University,Shanghai 200092,China

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）