| 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 |
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| 引用本文： | 李隆庚,李秀荣.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[J].唐山学院学报,2013,26(3):64-67. |
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| 作者姓名： | 李隆庚 李秀荣 |
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| 作者单位： | 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 |
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| 基金项目： | 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 |
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| 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VisualBasic6．0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。
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| 关 键 词： | 多媒体演示系统 RS-232 VB6 |
The Design and Development of Multimedia Control System Based on RS-232 Com |
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| LI Long-geng
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LI Xiu-rong.The Design and Development of Multimedia Control System Based on RS-232 Com[J].Journal of Tangshan College,2013,26(3):64-67. |
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| Authors: | LI Long-geng LI Xiu-rong |
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| Institution: | 1. Educational Technology Center, Tangshan Teachers College, Tangshan 063000, China; 2. Editorial Depart ment of Journal, Tangshan College, Tangshan 063000, China) |
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| Abstract: | 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. |
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| Keywords: | multimedia demonstration system RS-232 VB6 |
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