基于面向服务对象体系结构的交通噪声地图分布式计算方法

摘要

Current urban traffic noise mapping systems are not ideal for big scale project distributed computing in dynamic network. This paper proposed a noise mapping distributed computation method based on loosely-coupled services and the mechanism of Service Object Oriented Architecture (SOOA), investigated the generation approach of noise propagation calculation service, and introduced the deployment and management of services in the proposed system. At last, a demonstration indicated that the distributed computation approach considerably reduced the overhead of calculation and supplied flexible system architecture at the same time. The experimental results show that the imbalance of parallel subtasks will affect the parallel efficiency. Under normal circumstances, parallel efficiency can reach over 85%.%针对目前城市交通噪声地图绘制工具和方法不能适应大规模项目分布式计算需要的现状,提出一种基于松耦合服务的噪声地图分布式计算方法,阐述了面向服务对象体系结构(SOOA)运作机制,给出了噪声地图计算服务的建立方法并介绍了其部署方式和管理模式.最后通过某示范区噪声地图求解实例验证了该算法在有效提高计算效率的同时能够给系统提供充分的灵活性.实验结果表明,并行子任务的不均衡会影响并行效率,一般状况下并行效率能够达到85％以上.