Abstract: To meet the needs of small and medium businesses, a remote control project for LED text display screen with a low cost and easy content updates was designed in this paper. A MCU was used as processing core and GPRS/GSM communication standards were adopted in this system. The control commands and display data emitted from a phone were received by GPRS module mounted on the screen. The received data were then processed to control scan display of the LED screen. Remote update display contents on the LED screen were realized finally. After a period of practical use, the system operation is stable and reliable, and achieves design requirements.

Key words: General Packet Radio Service (GPRS) module, Font-chip, C8051F410, LED dot display screen, Micro Controller Unit (MCU)

摘要： 为满足中小商家的使用需求，给出了一种低成本、内容更新便捷的远程控制点阵LED文字显示屏的方案。该系统采用单片机(MCU)作为系统处理核心，采用 GPRS/GSM通信标准，通过显示屏上通用分组无线业务(GPRS)模块接收手机发送的控制命令及显示数据，经处理后控制LED显示屏的扫描显示，实现点阵屏远程更新显示内容。经一段时间的使用，系统运行稳定可靠，基本达到设计要求。

关键词: 通用分组无线业务模块, 字库芯片, C8051F410, LED点阵显示屏, 单片机