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近年来,国内已研制了多种类型电子显示屏系统,并应用于体育、新闻、广告等领域。本文叙述了目前应用最广泛的 LED 电子显示屏系统。本系统采用了积木式的硬件结构,可灵活地按需要构成各种电子显示屏系统。在软件上采用了基于 C 语言的模块化程序结构和开放式体系,构成了功能强大、使用灵活方便的图文输入、编辑环境与多种显示方式控制。一、显示屏的硬件设计由于 LED 电子显示屏的用途各异,它的几何尺寸所需信息量及相关显示要求相距甚远。故在系统的设计中采用硬件组件化,每一组件为一独立功能模块,可根据用户需要组合。对于特殊要求用户,只需增添
In recent years, various types of electronic display systems have been developed in China and used in fields such as sports, news and advertisement. This article describes the most widely used LED electronic display system. The system uses a modular hardware structure, can be flexibly according to need to form a variety of electronic display system. The software adopts a modular program structure and an open system based on C language to form a powerful, flexible and convenient graphical input, editing environment and a variety of display control. First, the hardware design of the display LED electronic display due to the use of different geometric dimensions and the amount of information required by the display requirements far apart. Therefore, the design of the system uses hardware components, each component is an independent function module, according to user needs combination. For special requirements of users, just add