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