基于LabVIEW与单片机的多功能LED点阵显示屏设计  

Design of multi-function LED dot-matrix display screen based on LabVIEW and SCM

作　　者：孙立辉[1] 王海[1] 

机构地区：[1]吉林化工学院信息与控制工程学院,吉林吉林132022

出　　处：《现代电子技术》2016年第6期140-142,146,共4页Modern Electronics Technique

摘　　要：设计的多功能LED点阵显示屏由上位机和下位机两部分组成。上位机利用LabVIEW从计算机的汉字库中提取汉字字模并转化为十六进制字模数据,并在Lab VIEW中进行图像扫描得到相应汉字的字模,经串口传给下位机以驱动LED点阵显示屏显示相应的汉字;下位机的硬件部分由时钟电路、LED点阵屏显示电路、温度采集电路以及主控制器等部分组成,能够实现汉字、温度和时间的显示。该系统具有修改显示内容方便,显示稳定,亮度清晰等特点,因此具有很高的应用价值。With the rapid development of electronic technology,the dot- matrix display device is widely used in various fields. The designed multi-function LED dot-matrix display screen is composed of the upper computer and lower computer. The Chinese character matrixes are extracted by the upper computer from the Chinese character matrix library in computer by means of Lab VIEW,and converted into hex matrix data. The corresponding Chinese character matrixes are obtained by image scanning in Lab VIEW,and transmitted to the lower computer through the serial port to drive LED dot-matrix display screen for displaying the corresponding Chinese characters. The hardwares of the lower computer are composed of clock circuit,LED dot- matrix screen display circuit,temperature acquisition circuit and master controller,which can realize the display of Chinese characters,temperature and time. The system has a high application value due to the advantages of convenience display content modification,stable display,clear luminance,etc.

关 键 词：LED点阵显示屏 LAB VIEW MAX7219 汉字 

分 类 号：TN98-34[电子电信—信息与通信工程]