电子信息工程专业毕业论文智能阀门控制器的硬件设计.doc

电子信息工程专业毕业论文--智能阀门控制器的硬件设计 摘 要 在现代工业自动化控制中工业过程控制的质量很大程度上取决于过程控制仪表性能的高低气动调节阀是工业过程控制的重要调节机构本文研究的调节型阀门控制器是气动调节阀的核心附件它能够显著改善阀门的动态特性提高阀门的响应速度定位精度以及控制灵活性 本文先对国内外智能阀门控制器进行了对比和分析然后详细阐述了智能阀门控制器的总体及硬件设计论文主要解决了基于MSP430单片机的阀门硬件控制电源相序的检测电机保护等关键问题并且由基于MSP430的单片机系统实现对整个系统的数字化智能化控制提高了控制精度针对当前国内阀门电动装置主要为机械式开关控制的现状本着在现有机械结构上改动最小的原则利用传感器和电子电路替换传统的机械控制结构并且开发了集执行机构驱动单元调节控制单元现场显示仪表等为一体的机电一体化智能电动执行器 本文设计并实现智能阀门控制器对提高国内阀门控制的自动化水平和智能阀门电动装置生产水平参与国际竞争具有重要的现实意义 关键词调节型阀门控制器系统硬件电路设计 The Hardware Design of Adjustable Valve Controller ABSTRACT In modern industrial automation control the quality of industrial process control depends to a great extent on the performance level of process control instrumentation Pneumatic control valve is an important governor motion of industrial process control and the adjustable valve controller studied in this paper is the main attachment of pneumatic control valve it can significantly improve the dynamic characteristics of valves improve the control speed precision and flexibility of valves This paper analyzes the research situation and future development of the adjustable Valve Controller home and abroad and also carries on the contrast and the analysis to them and finds the solution of some key problems such as hardware designs of the intelligent valve controller based on MSP430 single chip processor phase sequence test of power source motor protection and so on Then in the view of the situation that the major current domestic electric valve actuator is controlled by the mechanical type switch the design of hardware of the adjustable valve controller was elaborated in detail based on the principles such as modifying the smallest in the existing mechanism replacing tradition machinery control structure by the sensor and the electronic circuit situation of the overall system being digitally and intellectually controlled by the programmable MCU system to improve the control accuracy This electro mechanics integrates actuator drive unit adj