摘要
由于传统的有线控制方式的LED控制卡,传输距离近,易受外界环境的制约,因而不能构建大规模的联网式LED屏信息发布系统,而GPRS无线通讯控制方式开销大,不利于小商户使用。本文针对目前大屏幕LED显示系统存在的问题,结合当今先进的微控制器产品、控制技术和通信技术,把3种不同控制方式包括串口控制、短信控制以及GPRS无线集群控制的多功能控制卡集成在同一张异步控制卡上,以便满足不同客户使用需求。
Traditional wired control models LED control card can transmission distance very nearly and vulnerable to external environment constraints, therefore it cannot build a large-scale networked LED screen information system. GRPS wireless communication control method overhead is not conducive to small businesses use. For those problem of large-screen LED display system, This article combined with modern advanced microcontroller products, control technology and communication technology, Integrated three different control methods including serial control, integrated control of SMS and GPRS wireless cluster of multi-function control on an asynchronous control card ,in order to meet different customersI needs.
出处
《电子设计工程》
2012年第17期172-174,共3页
Electronic Design Engineering
