移动式水情信息查询系统WII-MGIS设计与实现

Design and Implementation of Mobile Inquiry System WII-MGIS for Water Information

为了便于防汛抢险、抗旱等现场指挥及水利工程的现场管理等工作,满足移动状态下水情信息的实时查询要求,文中对水情信息查询系统进行了设计开发。系统客户端选用ARM微处理器硬件平台和嵌入式Linux操作系统,利用Qt/Embedded图形库从底层开发移动GIS水情信息查询软件WII-MGIS。该软件通过GPRS网络向移动信息中心发送XML格式的查询请求,中心服务器解析后将从水情数据库查询的结果以XML封装后以Socket方式返回给客户端。实验结果表明,系统稳定可靠,易于操作,具有推广应用价值。

In order to facilitate the drought flood control, on-site command and water conservancy project site management work and meet real-time hydrological information query in mobile, a hydrological information system is designed and developed. The system client choo- ses the ARM microprocessor hardware platform and embedded Linux operating system and uses Qt/Embedded graphics library to develop mobile GIS hydrological information software named WII-MGIS in base. The software sends the inquiry request in XML format to the mobile information center through the GPRS network, central server queries the hydrological database after parsing the inquiry request, and subsequently returns the inquiry results to clients by means of Socket. Test results show that the system is stable and reliable, easy to operate.