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用单片微机对高纯N_2终端纯化装置进行测控,具有精度高,自动化程度高及体积小,成本低等优点。叙述的智能控制仪充分利用单片微机软硬件,对测量信号进行线性补偿处理,并采用PID算法进行控制;允许操作人员设置各种控温参数及报讯时间;不仅可用数码管显示11种运行参数,还可用灯光显示8种运行状态;此外,还具备超温声光报警功能;在抗干扰方面也有独到的处理。从系统要求及控制方法、硬件配置、软件设计等方面进行论述,为化工设备自动化提供了可借鉴的方法和思路。
Using single-chip microcomputer for high purity N_2 terminal purification device for measurement and control, with high precision, high degree of automation and small size, low cost and so on. Described the intelligent controller makes full use of single-chip microcomputer hardware and software, the measurement signal linear compensation processing, and the use of PID algorithm control; allows operators to set various temperature control parameters and reported the news time; not only digital tube display 11 kinds of operation Parameters, but also the use of light display 8 kinds of operating conditions; In addition, it also has over-temperature sound and light alarm; anti-interference also has a unique treatment. From the system requirements and control methods, hardware configuration, software design and other aspects of the discussion, provides a reference for the automation of chemical equipment and ideas.