基于单片机的FIR电子病历系统设计论文.doc

本科生毕业设计（论文） RFID电子病历系统的设计 PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT I 摘 要 RFID是通过无线射频的方式实现非接触双向数据通信并对目标加以识别和获取相关信息数据的技术。随着技术的日趋成熟，RFID射频识别技术已广泛应用于人们的日常生活、生产的各个领域。 本设计采用stc89c51单片机和MFRC-522射频读写模组（Mifarel卡）设计电子病历系统，系统在stc89c51单片机的控制下实现对Mifarel卡的读／写访问操作，并通过STC89C51单片机与上位机通信。文中，首先对射频识别技术的基本原理、基本应用进行分析，然后详细论述系统设计中STC89C51单片机控制电路、MFRC-522读写器电路的设计原理，上下位机通信原理、数据库的调用原理以及软件实现读写器与mifare1卡的读写原理，其中读写原理包括请求应答、防冲突、选卡片、认证、读／写等功能模块的实现原理。 关键词：RFID射频技术；MF RC522读写器；IC卡；51单片机；电子病历系统 PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT II Design of RFID Medical Records Electronic Systems LIU Zhi-qiang Abstract RFID(Radio Frequency Identification) is a radio frequency by way of non-contact and two-way data communication objectives are identified and access to information technology-related data. As the technology matures, RFID radio frequency identification technology has been widely used in peoples daily life, in all areas of production. This design uses stc89c51 microcontroller and MFRC-522 RFID reader module (Mifarel card) designed electronic medical records system,System implementation under the control of the microcontroller stc89c51 on Mifarel card reading / write access operations, and through STC89C51 SCM and PC communications. Hereinafter, the basic principle of the first radio frequency identification technology, the basic application for analysis, Then discusses in detail the system design STC89C51 MCU control circuit design principles MFRC-522 reader circuit, Upper and lower computer communication theory, invoked the principle of the database and software reader and card reader mifare1 principle, Literacy principles which include a request response, conflict prevention, election card, authentication, read / write, etc. The principle function of the module. Key words：RFID technology; MFRC522 module; IC card; 51SC