基于时空特征分析技术的烤烟GIS系统

Tobacco Geographic Information System based on Spatio Temporal Feature Analyzing Technique

本文分析了烤烟信息系统对烤烟种植、生产和销售的重要作用,构建系统的必要性和应用需求,并在.NET框架下,利用ArcEngine和ArcSDE,以C/S结构实现该系统。介绍了系统的结构和功能:包括地图服务、烤烟信息查询统计和烤烟地理信息时空分析和决策支持。同时,讨论了实现该系统的关键技术,包括时空数据库、时空序列的烤烟时空事件分析模型、Web服务等。时空数据包括业务数据和行政区数据两类,对于行政区,除了需要记录行政区的生命周期外,还需记录行政区变更事件,通过行政区变更事件表查询行政区撤消、合并等事件后的业务数据,进而实现时空分析。系统的实现对促进烤烟生产信息化有重积极意义。

The tobacco geographical information analysis system is important for tobacco planting, production and distribution. The necessity and application requirements were analyzed. In. Net framework, this system was built by using ArcEngine and ArcSDE which is Client/Server structure, and Oracle was used as spatial database and vb. net as the language. The system structure and realized functions were introduced; these realized functions include map services, tobacco geographical information query and statistics, tobacco geographical information spatio-temopral analysis and decision-making. Some crucial techniques were summarized at last, including spatio-temporal database, tobacco spatio-temporal event analyzing model based on spatio-temporal serial and Web services and so on. The spatio-temporal data include two types： business data and district data. For the district data, the life circle of a district and the changing events should be recorded at the same time. The historical data of one district can be gotten had profound through the district changing table, and then spatio-temporal analysis could be realized. This system influence in tobacco planting and management