局域无线广播自动播出系统的研究

Auto-broadcasting system of local broadcasting wireless

通过对局域无线广播系统运行现状的分析和研究 ,依据现代电子传媒与信息技术的基本原理 ,利用微电脑钟控装置与录音机组成自动播控单元 ,再把各单元之间按照一定的时序组合起来 ,以实现节目的自动连续播放 ;采用VisualBasic语言的平台 ,把“Timer”控件作为事件的触发器 ,定时检测数据库中的节目表 ,自动播放指定节目 .这两套自动播出系统投入使用后 ,性能优越、运行稳定、效益良好 。

A cell of auto control was composed of the controller of microcomputer and recorder. According to the gradation of time, these cells were fitted together to realize auto play continuously, which is called auto broadcasting system. Visual Basic was adopted with “Timer” as trigger of affair, and the program appointed was auto played. After two auto broadcasting systems were operated, it is believed that their functions are consummate.