基于MCGS和智能仪表的温度控制系统设计论文.doc

PAGE PAGE 基于MCGS和智能仪表的温度控制系统设计 总计：毕业论文 34 页 表 格 1 表 插 图 20 幅 指导教师 评 阅 人 完成日期 2013.5.25 摘 要 本文主要探讨了温度控制的实际意义与背景，分析研究了温度控制系统的原理和特点以及需要解决的核心问题，了解和掌握AI智能调节器的应用方法以及MCGS组态软件的基本原理与操作。设计和实现由AI-808智能调节器和PC机构成的温度控制系统。 针对EFPT过程控制实验装置中的被控对象，设计一个控制系统实现对热水锅炉水温的定值控制，同时具备防止低水位干烧的安全保护联动机制。系统具有自动控制和手动控制两种工作方式，具有流程图监视画面、参数设置和报警功能，并能显示实时趋势曲线和历史趋势曲线，实现稳定的温度控制系统的人机界面。系统具有良好的抗干扰性和控制性能，同时提高了实时控制能力，可以方便地运用于实际工业控制当中。 AI智能仪表主要完成数据的采集和回路的控制，保证系统的可靠性。监控软件的开发采用MCGS组态软件，在MCGS中，通过用户设备的组态即可实现AI智能调节器和PC机的通信。PC机通过RS232/485转换装置、仪表RS485串行接口与仪表进行通讯。根据具体的系统设计方案，运用稳定的温度控制系统最终实现和完成对热水锅炉水温的定值控制。 关键词：温度控制；智能调节器；MCGS  ABSTRACT This paper mainly discusses the practical significance of the temperature control and background analysis of the temperature control system principles and characteristics and the need to address the core problems, understand and master the AI smart regulator MCGS configuration software application methods and the basic principles and operations. Design and implementation of the AI-808 and PC intelligent regulator body into the temperature control system. EFPT process control device for the controlled object, design a control system for boiler water temperature setting control, along with a dry to prevent low water level of security linkage mechanism. System with automatic control and manual control work in two ways, with a flow monitor screen, parameter setting and alarm functions, and can display real-time and historical trend curve trend curve to achieve stable temperature control system, man-machine interface. The system has good noise immunity and control performance, while improving the real-time control capability, can be easily applied to real industrial control them. ? AI intelligent instruments mainly to complete the data collection and loop control to ensure system reliability. Monitoring software has been developed using