This dissertation is focused on the research of the process intelligent control system of chinese traditional medicine ( ctm ) production . the system include the analysis and research of process engineering of the extraction procedure , concentrate procedure and alcohol - recovery procedure of ctm ’ s , and includes the research of all the sensing elements and valves , and also include the advanced technology of soft sensing . this paper ’ s emphasis is the control mode for each process and the design and development of the intellect control system 本论文的研究工作主要围绕中药生产过程自动化智能控制系统的研制开发而展开,涵盖了中药提取工段、浓缩工段、醇沉及醇回收工段的工艺流程的研究,中药自动化装置所采用的传感器、阀门以及软测量技术的研究,各生产工段控制方法的研究以及中药自动化智能控制系统的设计开发等主要内容。
The improvement of automation during produce procession is becoming an important task to many industry enterprises , so we apply measurement - control technique of network in microcomputer - based relay protection of motors , and propose a monitoring and protection system of motor groups based on measurement - control technique of network as a solution . on one hand we developed a motor protection device based 80c196kb with high sensitivity and reliability . on the other hand we developed a serial communication system of master - slave structure based on 485 bus to realize remote - monitoring of motor groups 本文首先介绍了电动机微机保护的发展趋势，面对当前企业对工业生产过程自动化程度的要求在不断提高这一实际需求，把电动机微机保护和计算机测控网络技术结合起来，提出了基于计算机测控网络技术的电动机群监控与保护系统这一解决方案：一方面研制了一套灵敏度高、性能可靠、保护功能完善的基于80c196kb单片机的微机保护装置；另一方面应用计算机测控网络技术开发了基于485总线的主从式串行通信系统，以实现电动机群的远方监控。
As the most age - old and powerful control mode , pid control always has had a great effect on the automatic control of the production process . but with the development of science and technology , the controlled system has become more and more complicated , and the requirements of effect have increased and pid can ’ t adapt to the changed requirements . thus there are some conflicts between the complexity and accuracy Pid控制作为历史最为悠久,生命力最强的控制方式一直在生产过程自动化控制中发挥着巨大的作用,但是随着科学技术的不断进步和发展,被控对象正变得越来越复杂,而人们对其控制精度的要求却日益提高,然而pid控制技术却越来越不适应现代工业对象的变化,这样就产生了复杂性和精确性的尖锐矛盾。
