基于RFID技術的圖書管理信息采系統(tǒng)設計

摘要 目前,在我國的圖書管理工作中,[主要應用條碼識別技術,它具有成本低、操作簡單的特點,但也存在局限性,如必須人工借助讀寫設備進行數(shù)據(jù)的采集,常因條碼、閱讀器質量發(fā)生誤讀和拒讀等問題,影響了借閱效率和服務質量。射頻識別(即Radio Frequency Identification,以下簡稱技術是RFID)是一項利用射頻信號通過空間耦合交變磁場或電磁場實現(xiàn)無接觸信息傳遞并通過所傳遞的信息達到識別目標的技術。它將特殊的信息編碼寫入電子標簽,標簽被粘貼在需要識別的產品或器件上，寫入時間比打印條碼少；標簽的內容可以動態(tài)改變；能夠同時處理多個標簽；標簽的數(shù)據(jù)存取有密碼保護,安全性更高。無需重新制作新的標簽，可重復使用。
本課題設計了一種基于無線射頻識別技術的圖書館信息采集系統(tǒng)。在此設計中采用無線射頻識別技術（RFID技術）代替?zhèn)鹘y(tǒng)圖書管理系統(tǒng)使用的條形碼+磁條技術，使得非接觸的圖書信息采集更加快速、準確。采用RFID技術的圖書館可以對批量借閱或還回的圖書進行處理，可以實現(xiàn)瞬間、非接觸完成。由于RFID提供的信息容量大，使用密碼技術進行數(shù)據(jù)交換和可讀寫，同時具備了條碼和磁條技術要求，無須再使用磁條技術，使圖書流通更加方便、快捷、安全。嵌入式RFID圖書管理系統(tǒng)可以大大提高圖書館管理的效率。
首先本課題對RFID技術原理做了詳細的概述，在此基礎上論述了圖書館信息采集系統(tǒng)硬件平臺的搭建。
其次本課題在硬件平臺上擴展了LCD進行信息顯示，F(xiàn)LASH用于存儲ASCII碼和漢字字庫文件，MFRC500用于射頻識別等硬件電路，并最終搭建起了系統(tǒng)的硬件平臺。
最后本課題參照MFRC500和STC11F32XE提供的數(shù)據(jù)手冊，對下位機軟件進行設計分析和編碼，以實現(xiàn)微控制器對射頻識別芯片的各種操作進行控制。
關鍵詞 嵌入式系統(tǒng)  STC11F32XE   射頻識別  RS232  MFRC500  LCD
 
Design Of Information Collection Of Book With RFID Technology
Abstract Presently,the management of China's books, the main application of bar code identification technology, it has a low cost, easy to operate features, but there are also limitations, such as the equipment must be manually read and write data through the collection, due to bar code , the quality of reader misreading occurred and refused to read and so on, affect the efficiency and service quality to borrow. Radio Frequency Identification (ie, Radio Frequency Identification, hereinafter referred to as technology is RFID) is a radio frequency signal through the use of space coupled alternating magnetic field or electromagnetic fields to achieve non-contact transmission of information through the message to reach target identification technologies. Special information will be encoded into the RFID label has been pasted in the need to identify the product or device, the write time less than print barcode; survival data label password-protected access, higher security. No need to re-create a new label, can be reused.
The design of the subject of a radio frequency identification technology-based library information collection system. to replace the traditional library management system using bar code + magnetic stripe technology, the book makes non-contact information collection more quickly and accurately. The use of RFID technology in the library can borrow or return bulk of the books to deal with, you can achieve an instant, non-contact complete. Embedded RFID library management system can greatly enhance the efficiency of library management.
First of all the topics on the principles of RFID technology has done a detailed overview, based on this information collection on the library system to build the hardware platform.
Secondly, the issue in the hardware platform for the expansion of the LCD information display, FLASH is used to store Chinese characters ASCII code and documentation, MFRC500 for hardware such as radio frequency identification circuit, and eventually build a hardware platform of the system.
Finally, with reference to the subject and MFRC500 data provided by STC11F32XE manual, the next-bit software for design analysis and encoding, in order to achieve micro-controller of radio frequency identification chips to control the various operations.
Key words Embedded system   STC11F32XE    RFID  RS232  MFRC500  LCD

目  錄
第1章 概述 1
1.1 課題研究背景與意義 1
1.2嵌入式系統(tǒng)的發(fā)展現(xiàn)狀 3
1.3國內外RFID技術的發(fā)展現(xiàn)狀 3
1.4課題的主要工作內容 4
第2章  RFID技術及應用概述 5
2.1 概述 5
2.1.1 RFID系統(tǒng)的構成 5
2.1.2 RFID技術的基本工作原理 5
2.2 MIFARE ONE非接觸式電子標簽 6
2.2.1 Mifare One電子標簽的工作原理 6
2.2.2 Mifare One電子標簽的存儲結構 7
2.3 RFID技術在圖書館的應用 8
第3章 圖書館信息采集系統(tǒng)硬件設計 10
3.1STC11F32XE微控制器 10
3.2圖書信息采集系統(tǒng)的總體硬件設計 11
3.2.1 UART串口通信接口設計 11
3.2.2  LCD液晶擴展 12
3.2.3 存儲器擴展 13
3.2.4 其他接口設計 13
3.3 STC11F32XE和MFRC500接口設計 14
3.3.1 MFRC500芯片的功能結構 14
3.3.2 MFRC500芯片主要引腳簡介 15
3.3.3  STC11F32XE和MFRC500芯片接口設計 16
第四章  圖書館信息采集系統(tǒng)的下位機軟件設計 18
4.1  圖書采集系統(tǒng)和PC機通信幀格式的設計 19
4.2  MFRC500讀寫模塊的設計、實現(xiàn)與調試 20
4.3 MFRC500讀寫模塊設計 22
第五章 軟硬件測試 25
5.1測試環(huán)境 25
5.2編寫測試用例并測試 25
第六章 結論 34
致  謝 35
參考文獻 36