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1、 . . . . . . . 学学 号：号：* 毕毕业业设设计计说说明明书书 GRADUATE DESIGN (THESIS) 设计题目：基于设计题目：基于 ARMARM 的模糊的模糊 PIDPID 温度控制系统的研究温度控制系统的研究 学生：学生：* 专业班级：专业班级：* 学学 院：院： * 指导教师：指导教师：* 教授教授 20112011 年年 0606 月月 0808 日日 . . . . . . . 摘 要 本文在研究了目前国外温度控制现状的基础上，针对大多数工业生产中温 度控制系统对复杂控制算法处理能力差，提出了一种基于ARM的模糊PID温度控 制系统。硬件上，系统采用ARM9微
2、处理器AT91RM9200作为主控制芯片，对温度 检测单元和液晶显示模块进行了设计，对存储单元进行了扩展。；在软件上， 移植了嵌入式实时操作系统Linux，对温度检测模块、D/A数据转换模块、液晶 显示模块及控制算法等应用程序进行了开发设计，本文设计的温度控制系统是 针对一般工业温度控制特点提出的，具有扩展性强、可靠性高、响应速度快、 体积小等特点，能够有效管理复杂的系统资源。 目前市场上成型的温度控制产品都普遍采用传统 PLC 和单片机来实现， 能够满足用户大多数场合的需要。随着微电子和嵌入式技术的迅猛发展以及自 动控制理论的不断完善，工业温度控制要求也越来越高。现在国外很多温度控 制系统都
3、采用 ARM 作为处理器，ARM 为嵌入式的应用提供了一个有效的解决方 案，以其成熟的结果标准，有效的 32 位 RISC 结构，优秀的代码密度，可能的 低成本，执行高度稳定等特点，被市场所认可。 在工农业中的温度控制对象往往具有非线性，大时滞，时变，强耦合等 特点，采用常规 PID 控制不理想，不能满足系统在不同条件下对参数的自整定 要求，从而影响其控制效果的进一步提高。模糊控制是一种语言控制，不依赖 精确的数学模型，对参数变化不敏感，具有很好的鲁棒性。由于模糊控制易受 模糊规则有限等级的限制而引起误差。 关键词：温度控制系统，关键词：温度控制系统，ARMARM，模糊，模糊 PIDPID .
4、 . . . . . . AbstractAbstract In this paper the research at home and abroad and temperature control, based on the current situation of the most industrial production in temperature control system in the complicated control algorithm processing ability is poor, put forward based on the ARM of the fuz
5、zy PID temperature control system. Hardware, the system using ARM9 microprocessor AT91RM9200 as the main control chip, the temperature detection unit and LCD module are designed and expand in storage units. Another system also designed the RS 232 serial interface circuit, JTAG circuit and the Ethern
6、et interface circuit, convenient data download, system commissioning and with a Pc or equipment communication; In software, transplanting embedded real- time operating system Linux, temperature detection module, to D/A data conversion module, liquid crystal display module and control algorithm of th
7、e application development design, this article design temperature control system is for general industrial temperature control characteristics of the proposed, with expandability, high reliability and response speed, small volume and other characteristics, to manage the complex system resources. On
8、the market at present the molding temperature control products is widely adopted in the traditional PLC and single-chip processor to implement, can meet the users most situation the need. With microelectronics and embedded technology of rapid development as well as the automatic control theory, the
9、perfection of the industrial temperature control requirements more and more is also high. Now many domestic and foreign temperature control system adopts ARM processor, as for the application of the embedded ARM provides an effective solution, with its mature results, effective 32-bit standard RISC
10、structure, good code density, low cost, execution may be highly stable and other characteristics, be accepted by the market. The temperature in agricultural and industrial control object with nonlinear, often with time-varying, strong coupling, character and the conventional PID control not ideal, c
11、ant meet the system under different conditions of the parameters of the setting requirements, and affects their control effect of further improved. The fuzzy control is a language control, do not depend on the accurate mathematical model, is not sensitive to the parameter changes, and has a good rob
12、ustness. Because fuzzy control is . . . . . . . susceptible to fuzzy rules limited level restrictions and cause errors. Keywords:Keywords: temperature control system,ARM, Fuzzy PID 目 录 摘 要.I I Abstract.II 第第 1 1 章章 绪论绪论.5 5 1.1 课题研究背景和意义 .5 1.2 温度控制系统研究现状及发展趋势 .5 1.3 嵌入式系统.6 1.4 嵌入式系统的分类及组成.7 1.5 本文的主要工作 .8 第第 2 2 章章 模糊模糊 PIDPID 控制控制.8 8 2.1 模糊控制基本原理 .8 2.2 模糊自适应 PID 概述 .9 2.3 模糊自适应 PID 控制器的设计 .10 2.3.1 模糊自适应 PID 控制器.10 2.3.2 参数自整定原则.11 2.3.3 隶属度函数的建立.12 2.3.4 控制规则的设计.14 第第 3 3 章章 温度控制系统硬件设计温度控制系统硬件设计.1717 3.1 AT91RM9200 处理器概述.
