【正文】 ........................ 2 第二章 模糊 PID 控制理論 ............................................................................... 4 ........................................................................................................ 4 ...................................................................................... 4 .......................................................................................... 4 .......................................................................................... 5 ................................................................................................... 7 ..................................................................... 7 ............................................................................. 7 ............................................................................. 8 PID復合控制算法 .................................................................................. 9 PID復合算法 ................................................................................ 9 PID算法運用 .............................................................................. 10 第三章 模糊 PID 溫度控制系統(tǒng)硬件設計 ................................................. 14 ......................................................................................... 14 ..................................................................... 14 ....................................................................................... 14 路圖 ....................................................................................... 15 單片機的選擇 ................................................................................................ 15 ......................................................................................... 19 ....................................................................................... 19 ........................................................................... 20 ........................................................................... 21 ........................................................................... 21 ........................................................................... 22 ..................................................................................................... 22 ................................................................................................. 23 ......................................................................................................... 24 ................................................................................................. 24 ................................................................................................. 25 第四章 系統(tǒng)軟件設計 ....................................................................................... 27 ..................................................................................................... 27 DS18B20模塊 ........................................................................... 27 ................................................................................................. 29 ................................................................................................. 29 第五章 系統(tǒng)的仿真 ............................................................................................ 31 ......................................................................................................... 31 MATLAB及其模糊 邏輯工具箱和仿真環(huán)境 ............................................... 31 ...................................................................................... 31 ................................................................................... 31 PID的仿真 ............................................................................................ 32 ....................................................................................... 32 ...................................................................................... 33 ............................................................................................. 35 結論 ............................................................................................................................ 37 參考文獻 ................................................................................................................... 38 附 錄 ........................................................................................................................ 39 附件一 :部分源程序 .............................................................................................. 39 ................................................................................ 39 ........................................................................................ 39 ......................................................................................... 40 附件二：英文文獻 ............................................................................................... 43 附件三：系統(tǒng)總電路圖 ....................................................................................... 51 謝 辭 ........................................................................................................................ 51 天津工業(yè)大學 2021屆本科畢業(yè)設計論 文 1 第一章 緒論 選題背景及其意義 在人類的生活環(huán)境中，溫度扮演著極其重要的角色。 AT89C51 SCM。 本文設計了一種基于模糊 PID的溫度控制系統(tǒng)，以 AT89C51單 片機為核心，主要做了如下幾方面的工作：首先介紹了模糊 PID控制理論基礎，其次進行系統(tǒng)的硬件設計以及硬件選擇，最后進行系統(tǒng)的軟件設計以及仿真。當控制對象很復雜的情況下，常規(guī) PID溫度控制器已經(jīng)不再適用了，為了提高對復雜系統(tǒng)的控制性能，要使用模糊 PID溫度控制器。 畢業(yè)設計（論文） PID 溫度控制 摘要 模糊 PID的溫度控制系統(tǒng)具有真正的智能化和靈活性，越來越多的溫度控制系統(tǒng)都基于模糊 PID算法而設計。隨著控制對象變得復雜，應用常規(guī) PID溫度控制精度和魯棒性降低。一種將 PID控制與模糊控制的簡便性、靈活性、以及魯棒性融為一體，構造了一個模糊 PID溫度控制器。 關鍵詞 ：模糊 PID； AT89C51單片機；溫度控制；仿真 Abstract Fuzzy PID temperature control system with real intelligence and flexibility, more and more temperature control systems are designed based on fuzz