【摘要】 数据处理和曲线绘制是实时监测系统不可或缺的组成部分。实时监测系统由前端数据采集模块、数据传输通道和后端监测模块组成。分析各种数据传输方式的特点,讨论前端采集模块中数据组织和发送的一般方式,研究后端监测模块中数据处理和曲线绘制的基本流程。针对常规曲线绘制方法效率较低、显示死板等缺点,提出基于内存拷贝数据更新方式的动态曲线绘制方法。使用API相关函数优化曲线绘制程序,使程序执行效率有较大提高,可以保证测试系统实时性要求。更多还原

【Abstract】 Data processing and curve plotting are dispensable functional modules in real-time monitoring system. The real-time monitoring system is composed of front-end acquisition module, data transmission channel and back-end monitoring module; characteristics of different data transmission ways are analyzed. The general method of data organization and transmission in front-end module is discussed. Meanwhile, the fundamental course of data processing and curve plotting in back-end module are researched. In view of low efficiency and rigid display result in conventional method, the dynamic curve plotting method based on memory copying data updating mode is proposed. Some API functions are adopted to optimize the plotting program, which can improve the program execution efficiency and ensure the real-time requirement in testing system.更多还原