基于RS-232串口的多媒体演示系统控制方式设计与程序开发  

The Design and Development of Multimedia Control System Based on RS-232 Com

作　　者：李隆庚[1] 李秀荣[2] 

机构地区：[1]唐山师范学院教育技术中心,河北唐山063000 [2]唐山学院学报编辑部,河北唐山063000

出　　处：《唐山学院学报》2013年第3期64-67,共4页Journal of Tangshan University

基　　金：河北省2012唐山市科学技术研究与发展指导计划(第二批)项目(12110213b)

摘　　要：以计算机和投影机为核心设备的多媒体演示系统,其控制部分的主要功能是实现对投影机灯电源的开启和关闭。通过一条自制的多芯通信电缆连接计算机与投影机的RS-232接口,以VisualBasic 6.0提供的串行通信控件MSComm编制软件安装在用户计算机中,可以实现计算机对投影机的直接控制,克服遥控器或中央控制系统两种控制方式的弊端,降低多媒体演示系统的建设与维护成本,并且具有连接简单、性能可靠、操作方便等优点。In the multimedia demonstration system, the computer and the projector are the core e- quipments. The function of the controlling part is to turn on and turn off the power of the projec- tor. By connecting the RS-232 interface to the computer and projector by a self-made multi core cables and by installing the software programming of serial communication control MSComm pro- vided by Visual Basic6.0 into a user＇computer,the direct control of the computer to the projector can be achieved. Therefore, the shortcomings of the two control modes-by the remote control and by the central control system can be overcome;the construction and the maintenance cost of mul- timedia presentations system can be reduced and there are advantages of simple connection, relia- ble performance, convenient operation etc.

关 键 词：多媒体演示系统 RS-232 VB6 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]