基于Web的实时数据监测系统的研究与实践

Research and Practice of Real-Time Data Monitoring System Based on Web

针对目前各类工业生产监测系统要求实时性强、不受区域范围限制、维护方便等的需要,提出一种基于Web的,以Ajax、SVG为核心技术的实时数据监测系统设计方案。该方案应用Ajax开源框架DWR提高了实时监测数据获取的速度,并利用SVG可动态显示图形以及支持用户交互的特点解决了在Web上实时显示监测数据变化趋势曲线、单击数据点获取数据值以及数据变化趋势曲线历史回放等关键问题。基于该方案设计开发的金属腐蚀监测系统的应用结果表明该方案可提高基于Web的实时数据监测系统的实时性与灵活性。

Various kinds of industry production monitoring systems have the requirements of strong real-time, no limitation of accessing region and convenient maintenance. Therefore one design scheme of real-time data monitoring system based on Web was put forward, whose core technologies were Ajax and SVG. The scheme applied DWR, which was the open source framework supporting Ajax, to increase the speed of acquiring real-time monitoring data. By using the SVG, which had the ability of supporting dynamic graphic display and interaction with users, some key problems were solved, such as displaying the curve of real-rime monitoring data change tendency, acquiring the data value by clicking the data point and playbacking the history monitoring graphic. The application results of metal corro- sion monitoring system based on this scheme showed that the scheme could improve the real-time and flexibility of real-time monitoring systems based on Web.