【正文】 畢業(yè)設(shè)計（論文）說明書課題名稱 基于 CAN 總線的智能照明控制系統(tǒng)設(shè)計 摘 要本設(shè)計是基于 CAN 總線的智能照明控制系統(tǒng)。設(shè)計中采用主從節(jié)點組網(wǎng)設(shè)計方案，通過主節(jié)點與多個從節(jié)點之間的相互通信以實現(xiàn)對照明設(shè)備的遠程實時監(jiān)控。主節(jié)點采用 NXP 公司生產(chǎn)的 ARM7 系列 LPC2119 微處理器和其內(nèi)部集成的 CAN 控制器以及PCA82C250 收發(fā)器設(shè)計出主節(jié)點硬件原理圖，并制作出主節(jié)點硬件電路板。從節(jié)點采用STC89C52 單片機和 SJA1000 獨立 CAN 控制器以及 PCA82C250CAN 總線收發(fā)器，設(shè)計出從節(jié)點硬件原理圖并制作出 2 個從節(jié)點實驗電路板。通過將主從節(jié)點實驗電路板掛接到網(wǎng)絡(luò)構(gòu)成一個一主多從的主從式照明控制局域網(wǎng)絡(luò)。利用該網(wǎng)絡(luò)進行 CAN 總線照明控制系統(tǒng)理論研究和實驗測試。在本文中詳細的介紹了 CAN 總線主從節(jié)點的軟硬件設(shè)計原理、CAN 總線通信原理、以及 CAN 總線應(yīng)用層協(xié)議的制定，并采用 SD 卡存儲技術(shù)、TFT 彩屏顯示技術(shù)、觸摸屏技術(shù)等現(xiàn)實了友好的人機界面。在 TFT 液晶顯示方面是本設(shè)計的一大亮點，設(shè)計中模擬工業(yè)控制工藝流程圖，對工藝中涉及的總線、燈設(shè)備、板卡等進行精心繪制顯示。使整個控制系統(tǒng)結(jié)構(gòu)清晰、形象、逼真。在輸入設(shè)備方面是本設(shè)計的第二大亮點，本設(shè)計采用當(dāng)前較為先進方便的觸摸屏輸入技術(shù)，為用戶提供一個方便易捷的輸入方式，以實現(xiàn)人機交互。燈設(shè)備離線檢測功能是本設(shè)計的又一大亮點，本設(shè)計采用定時詢問方法，實現(xiàn)了從節(jié)點的離線檢測功能?？傊?，在本設(shè)計中，主節(jié)點實現(xiàn)了對多個從節(jié)點燈設(shè)備的遠程設(shè)置和監(jiān)控功能、離線檢測功能、運行通信指示功能、實時更新顯示功能等。從節(jié)點具有獨立設(shè)置、控制本節(jié)點燈設(shè)備的功能。整體系統(tǒng)運行可靠，通信正常，不出現(xiàn)通信擁堵、死機等現(xiàn)象。并開發(fā)出具有一定應(yīng)用意義的系統(tǒng)軟硬件，實現(xiàn)了照明燈設(shè)備的有效控制。關(guān)鍵詞： CAN 總線；節(jié)點；照明控制；TFT；觸摸屏技術(shù)；SD 卡AbstractThe design is intelligent lighting control system . It’s based on CAN the design we use master and slave work The main munication between the master node and multiple slave nodes to make the remote realtime monitoring of lighting equipment successful. The master node uses the ARM7 family NXP LPC2119 microprocessors and integrated to its internal CAN controller and PCA82C250 transceiver design hardware schematic diagram of the master node, and create the hardware circuit board of the master salve node use STC89C52 microcontroller SJA1000 standalone CAN controller and PCA82C250CAN bus transceiver design from the node hardware schematic diagram and also create two nodes put the master and slave node experimental circuit board to the main work to constitute a main and some slaves lighting control local area work. U sing the work to research and experimental testing of the CAN bus lighting control system.In this paper a detailed introduction master and slave node of the CAN bus ,hardware and software design principles, the principle of CAN bus munication, the formulation of the CAN bus application layer protocol, SD card storage technology, TFT color display, touch screen technology and other practicalfriendly TFT LCD is one of the most wonderful of this the design,we simulate industrial control process flow diagram of the bus involved in the process, light equipment, boards, carefully drawing then make the control system more clear image and vivid. Advanced and convenient touchscreen input technology are the second highlights in the it apply a convenient input to the third highlights is that Light equipment offline detection. So We use from time to time ask, from the node offline detection.In short, in this design, the master node to multiple remote setup and monitoring functions of light equipment from the node offline detection, run munication indicator, updated in real time slave node With independent settings, control the function of the lamp device of the node from the node. The overall system is reliable, normal munication, the munication congestion, crashes and so on. And develop system software and hardware with a certain significance of application to achieve effective control of the lighting equipment.Keyword: CAN bus；node；Lighting control；TFT；Touch screen technology；SD card目錄摘 要 ........................................................................................................................................IABSTRACT...................................................................................................................................II1 緒論 .....................................................................................................................................1 課題背景 ........................................................................................................................1 現(xiàn)場總線的技術(shù)特點和現(xiàn)狀 ........................................................................................1 課題的提出及意義 ........................................................................................................22 系統(tǒng)設(shè)計 .............................................................................................................................3 設(shè)計要求 ........................................................................................................................3 總體設(shè)計方案 ................................................................................................................3 設(shè)計思路 ................................................................................................................3 方案論證與比較 ....................................................................................................4 主控制器 .........................................................................................................4 CAN 控制器選擇 ..............................................................................................4 CAN 收發(fā)器 ......................................................................................................5 CAN 通信電纜 ..................................................................................................5 系統(tǒng)結(jié)構(gòu)框圖 ........................................................................................................53 硬件設(shè)計 .............................................................................................................................7 系統(tǒng)硬件結(jié)構(gòu) ................................................................................................................7 系統(tǒng)單元電路設(shè)計 ........................................................................................................8 主節(jié)點單元電路設(shè)計 .............................................................................................8 ARM7 最小系統(tǒng)設(shè)計 ........................................................................................8 TFT 彩屏電路設(shè)計 ..........................................................................................9 SD 卡接口電路設(shè)計 ........................