摘要
电力信息是包含多种数据模型的典型异构数据库,电力信息的集成对电力系统的运行决策具有重要的意义。文中采用中介器/包装器结构,基于Web服务技术,提出了一种异构信息集成方法。该方法采用GAV方式定义全局模式到局部模式的映射关系,并用关系表来存储映射关系,从而简化了模式映射算法。将该方法应用到电力信息的集成上,实现了电力信息中气象数据、网供负荷数据、电厂负荷数据的集成。实际应用表明,文中所提出的方法可以有效地实现异构信息的集成。
Power information is a typical heterogeneous database. Integration of power information is very important to power system decision. Proposes a heterogeneous information integration method based on Web services techniques and mediator/wrapper architecture. The method adopts GAV to define the mapping relation between the global mode and local mode and adopts relation table to save the mapping relation, which can simplify the mapping algorithm. Then uses the method to power information to integrate climate data, grid load data and power factory load data. Practical application shows that the method can integrate heterogeneous information effectively.
出处
《计算机技术与发展》
2009年第5期173-175,179,共4页
Computer Technology and Development
基金
浙江省教育科研项目资助(200702547)
