基于51单片机和GSM的LED信息发布屏 毕业论文.docVIP

基于51单片机和GSM的LED信息发布屏 摘要 在这个经济发达的时代下，人与人的交流越来越显得重要，其中伴随的是人与人通过信息的传达来交流。在不同的地方信息的交流越发显得重要起来，比如在车站，广场，医院，学校等大型的公共交流地点，大型的屏幕上显示的内容为人们所熟悉。手机，短信，QQ，只是一对一或者是一对多的来交流，这种的通讯系统有一定的局限性，它们的功能并不适合在人群集中地，所以LED屏幕越来越重要的占据了绝大地域。这一篇论文详细的解说了以51单片机和GSM模块为核心的LED信息显示屏的一个全方面的工作环境。其中的核心是AT89S51的单片机芯片，GSM模块，4个8*8的LED点阵信息显示等四个方面。通过手机平台给GSM模块发送信息，利用I/O端口，进入到单片机的核心芯片，最后将手机中的信息在LED中显示出来。这个系统的各个原理部分为选定AT89S51为核心，通过串并转换器和所存器为译码电路;通过手机向GSM模块发短信的短信模块;接着由三极管和驱动继电器的驱动电路，最后显示在LED显示屏上.。 关键词：屏幕；51单片机；GSM模块；LED点阵显示屏 Abstract In this era of developed economy, the interpersonal communication becomes more and more important, which is associated with people through the transmission of information to communicate.In different parts of the information communication more important, for example, the station square, hospitals, schools and other large public communication places, large screen display content is familiar.Mobile phone, SMS, QQ, just come one-to-one or one-to-many communication, the communication system has certain limitation, their function is not suitable for centrally in the crowd, so LED screen is more and more important occupied the vast region.This paper detailed explanation with 51 MCU and GSM module as the core LED information display an all aspects of the work environment.Which is the core of single-chip microcomputer AT89S51, GSM module, four 8 * 8 LED dot matrix information display and so on four aspects.Through the mobile phone platform for GSM module to send information, the use of I/O port, into the core of the microcontroller chip, finally will be the information in the mobile phone in the LED display.The principle portion of the system for selected AT89S51 as the core, through the string and converter and the storage for decoding circuit; To the GSM module through mobile phone text message module; Then driven by transistor and relay drive circuit, the display on LED display. Key Words: screen display 51MCU GSM module LED display 目 录 第1章 绪论 1 1.1 课题研究现状和意义 1 1.2论文的