基于云计算和WebGIS的铁路运营监控系统的设计与实现

Design and Implementation of Railway Operation Monitoring System Based on Cloud Computing and WebGIS

采用云计算技术、基于WebGIS构建铁路运营监控系统。该系统包括铁路运营监控基础设施即服务、铁路运营监控平台即服务、铁路运营监控软件即服务3种服务模式。铁路运营监控基础设施即服务通过虚拟化技术将系统设备组成云平台基础设施，为用户提供硬件资源和计算资源。铁路运营监控平台即服务将应用服务平台以业务应用、GIS应用服务等方式提供给用户。铁路运营监控软件即服务将应用软件统一部署在应用服务器上，为用户提供应用软件资源。构建系统的关键是：应用服务的开发和实现、GIS应用服务的发布与调用、客户端开发和软件接口的实现和调用。系统开发完毕后的功能验证和测试结果表明：将业务处理、信息转换和共享以及安全管理等应用以服务的形式放在云平台，实现了铁路系统海量信息的集中管理和按需定制，增强了信息的安全性和可维护性。

Cloud computing is used to construct railway operation monitoring system which is basecl on WebGIS. The system includes three modes： railway operation monitoring infrastructure as a service, rail- way operation monitoring platform as a service and railway operation monitoring software as a service. Railway operation monitoring infrastructure as a service provides users with hardware resource and compu- ting resource through cloud platform infrastructure constituted by system devices which is based on virtu- alization technology. Railway operation monitoring platform as a service provides users with application service platform such as business applications and GIS applications services. Railway operation monitoring software as a service provides users with application software resources through deploying application soft- ware on application servers. The keys of system construction are development and realization of application service, publishing and calling of GIS application service, client development, realization and calling of software interface. After system development, functional verification and test results show that putting such complicated applications as business processing, information conversion and sharing as well as securi- ty management on the cloud platform in the form of service can achieve centralized management and cus- tomized demand for the mass information of the railway system, and can enhance information security and maintainability.