【正文】 價值。南京林業(yè)大學 20xx 年畢業(yè)論文 1 摘要 RFID (Radio Frequency Identification， 射頻識別 )是一種非接觸式自動識別技術，在動物的飼養(yǎng)、運輸、屠宰及產品的加工和流通等環(huán)節(jié)可以實施全過程、全位的有序管理和監(jiān)控，因而得到了廣泛使用。 關鍵詞： RFID PIC 單片機 控制 電機驅動 南京林業(yè)大學 20xx 年畢業(yè)論文 2 ABSTRACT RFID (Radio Frequency Identification) is an untouched automatic identification technique, which was widely used because it can manage monitor efficiently in the whole process of breeding, transportation and slaughtering of animals and the manufacture and circulation. RFID technique was selected to implement of cow identification according to the parison of several automated identification techniques. An intact automated cow feeding control system (ACFCS) applied in the scale cow was proposed in this study. Automatic Cow Feeding System is posed of four parts， such as cow identification module , PIC MCU control module, the motordriving module and display and artificial 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 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 研究目標和研究內容 ............................................................................................................ 5 研究目標 .................................................................................................................... 5 研究內容 .................................................................................................................... 6 2 RFID 技術簡介 ............................................................................................................................... 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 ............................................................................................................................. 8 3 ACFCS 系統(tǒng)總體設計 ....................................................................................................................10 概述 .....................................................................................................................................10 ACFCS 工作流程 .................................................................................................................10 ACFCS 總體方案設計 ...........................................................................................................10 ACFCS 基本功能 ................................................................................................................. 11 4 ACFCS 系統(tǒng)硬件電路設計 .............................................................................................................12 元件選擇 .............................................................................................................................12 單片機的選擇 ............................................................................................................12 串口 EEPROM 的選擇 ..............................................................................................14 顯示與人工設定模塊設計 ..................................................................................................15 HD7279A 芯片選擇 ..................................................................................................15 模塊的電路設計 .........................................................................................................17 單片機控制模塊 ..................................................................................................................18 電機驅動模塊 ......................................................................................................................19 步進電機的選擇 .........................................................................................................19 5 ACFCS 系統(tǒng)軟件設計 ..................................................................................................................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 ...............................