【正文】 ial setting module. Cow identification module is built by MF1 IC S50 high frequency reader was used to read the information of ear tag and identify the cow ID. PIC MCU control module control motor turning by MCU pic16F873. From the four major parts, this article outlines the main features and principles of the work， expounded the trend of the development and the convenience of the farming and techniques in the future. Experiments result indicted that MF1 IC S50 was high sensitive and radio of error was low. The operation of both hardware and software were stable， it has a great applied value. Keywords： RFID PIC MCUcontrol motordriving 南京林業(yè)大學(xué) 20xx 年畢業(yè)論文 3 目錄 摘要 .................................................................................................................................................. 1 ABSTRACT....................................................................................................................................... 2 目錄 .................................................................................................................................................. 3 1 前言 .............................................................................................................................................. 4 選題的背景及意義 ................................................................................................................ 4 研究目標(biāo)和研究?jī)?nèi)容 ............................................................................................................ 5 研究目標(biāo) .................................................................................................................... 5 研究?jī)?nèi)容 .................................................................................................................... 6 2 RFID 技術(shù)簡(jiǎn)介 ............................................................................................................................... 7 RFID 系統(tǒng)的組成 .................................................................................................................. 7 RFID 系統(tǒng)的原理 .................................................................................................................. 7 RFID 系統(tǒng)方案選型 ............................................................................................................... 8 RFID 特點(diǎn) ............................................................................................................................. 8 3 ACFCS 系統(tǒng)總體設(shè)計(jì) ....................................................................................................................10 概述 .....................................................................................................................................10 ACFCS 工作流程 .................................................................................................................10 ACFCS 總體方案設(shè)計(jì) ...........................................................................................................10 ACFCS 基本功能 ................................................................................................................. 11 4 ACFCS 系統(tǒng)硬件電路設(shè)計(jì) .............................................................................................................12 元件選擇 .............................................................................................................................12 單片機(jī)的選擇 ............................................................................................................12 串口 EEPROM 的選擇 ..............................................................................................14 顯示與人工設(shè)定模塊設(shè)計(jì) ..................................................................................................15 HD7279A 芯片選擇 ..................................................................................................15 模塊的電路設(shè)計(jì) .........................................................................................................17 單片機(jī)控制模塊 ..................................................................................................................18 電機(jī)驅(qū)動(dòng)模塊 ......................................................................................................................19 步進(jìn)電機(jī)的選擇 .........................................................................................................19 5 ACFCS 系統(tǒng)軟件設(shè)計(jì) ..................................................................................................................23 程序的主循 環(huán)流程 ...............................................................................................................23 軟件開發(fā)環(huán)境 ......................................................................................................................24 RS232 串行通信 ..........................................................................................................24 通信協(xié)議 ...................................................................................................................24 串行通信程序設(shè)計(jì) .....................................................................................................25 步進(jìn)電機(jī)位置控制程序設(shè)計(jì) .................................................................................................26 中斷程序設(shè)計(jì) ......................................................................................................................28 6 總結(jié)與討論 .................................................................................................................................29 7 致謝 ............................................................................................................................................30 參考文獻(xiàn) ..........................................................................................................................................31 附錄 控制系統(tǒng)的程序清單 ....................................................................