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本文以 ８０Ｃ１９８单片机为核心，通过对流体压力传感器、变送器输出的标准工业信号进行变换和处理，利用单片机中的 １０位 Ａ／Ｄ转换部件进行四通道压力采集，经数据处理和模糊控制算法调节后，由高速输出部件（ＨＳＯ）输出四路压力控制信号和两路越限告警信号，实现了对多回路压力的精确测量与控制，并通过键盘显示器实现测控功能的选择、参数的在线修改和实时显示等．文中给出了详细的硬件原理电路和软件设计思路．
In this paper, 80C198 single-chip microcomputer as the core, through the fluid pressure sensor, the transmitter output of the standard industrial signal transformation and processing, the use of single-chip 10-bit A / D converter for four-channel pressure acquisition, data processing and fuzzy control algorithm After the adjustment, the HSO outputs four pressure control signals and two crossing alarm signals to realize the accurate measurement and control of multi-circuit pressure. The selection of the monitoring and control functions and online modification of the parameters are realized through the keyboard display And real-time display. The article gives a detailed hardware circuit theory and software design ideas.