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黎明职业大学 机电工程系,福建 泉州,362000
Received:27 February 2011,
Revised:02 April 2011,
Published Online:20 October 2011,
Published:20 October 2011
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汪岚. 智能LED信息显示屏控制系统设计与应用[J]. 液晶与显示, 2011,26(5): 655-659
WANG Lan. Design and Application of Intelligent LED Information Display Screen[J]. , 2011,26(5): 655-659
汪岚. 智能LED信息显示屏控制系统设计与应用[J]. 液晶与显示, 2011,26(5): 655-659 DOI: 10.3788/YJYXS20112605.0655.
WANG Lan. Design and Application of Intelligent LED Information Display Screen[J]. , 2011,26(5): 655-659 DOI: 10.3788/YJYXS20112605.0655.
针对传统点阵显示屏显示内容难以脱机更新、读写数据缓冲和扫描速度不匹配容易造成闪屏的问题
介绍了一种以ATMEGA32为核心的可旋转式智能LED信息显示屏控制系统的设计方案。硬件上利用MBI5026提升显示驱动能力
并利用ADXL202实现重力识别和显示信息自动转向的旋转功能。软件上利用编程实现汉字拼音输入功能
实时更新显示信息
还构建了行列扫描优化模型
根据模型最优解合理设置行列扫描数目和次数
可在现有硬件资源的基础上将扫描速度提升至最优状态。实践证明
系统具有显示亮度智能调节、外围电路简单和易安装升级等优点
有很好的工程实用价值。
In regard to the issues including information can not be update off-line
the splash screen which was caused by conflict between reading-writing frame cache and scanning
an intelligent LED display control system design method was presented based on ATMEGA32. In hardware section
MBI5026 was used to enhance the driver ability
and ADXL202 was used to build up the abilities of gravity recognition and automatic information display rotation. In software section
Chinese input-PINYIN
real time information display was available in the program
a scanning optimal model is also established. By setting up the parameters of numbers of row-column and numbers of scanning optimally
the scanning speed can be improved to its maximum capacity. Experimental results show that the system has great advantages
including the brightness can be adjusted intelligently
the external circuit is simple and easy to install and upgrade. In short
it is an excellent application for engineering.
赵明富,张先富,陈公甲.等公交车站牌报站及查询系统设计 [J]. 液晶与显示, 2009,24(4):576-580.[2] 朱清慧,陈绍东,徐志强.基于图形液晶显示器的汉字显示系统设计与仿真 [J]. 液晶与显示, 2009,24(5):692-696.[3] Atmel Corporation.ATmega32 datasheet(L) .USA: Atmel Corporation,2001.[4] 积聚科技.MBI5026 Datasheet .台湾:积聚科技,2005.[5] Analog Devices Inc. ADXL202 datasheet(L) .USA: Analog Devices,Inc.,1999.[6] 夏家和,赵忠.卫育新.微型智能电子水平仪设计 [J]. 测控技术, 2005,24(1):69-71.[7] 王勇军,李智,李翔.车载电子罗盘中的一种新型抗干扰设计 [J]. 单片机与嵌入式系统应用, 2010,(5):8-11.[8] 屈翠香,李刚.具有数字信号输出的双轴加速度传感器ADXL202 [J]. 国外电子元器件, 1999,(8):8-13.[9] 刘武发,蒋蓁,龚振邦.基于MEMS加速度传感器的双轴倾角计及其应用 [J]. 传感器技术, 2005,24(3):86-88.[10] 张茂青,李彦超,张敏,等. AVR单片机高级语言BASCOM程序设计与应用 [M].北京:航空航天大学出版社,2005.[11] 柏琳,丁维明.单片机中文拼音输入法的设计及实现 [J]. 工业控制计算机, 2005,(7):48-49,51.
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