基于单片机的多媒体电脑与投影机同步装置的设计

Design of a Synchronization Device between Multimedia Computer and Projector based on Single Chip Microcomputer

为了解决多媒体教室中计算机与投影机画面不同步的现象。本文提出一种基于STC15w204s单片机控制的计算机与投影机同步装置的设计。在设计中结合单片机串口电路、计算机usb口和串口,有效地克服了计算机与投影机画面不同步的问题。结果表明,该装置能够自动同步计算机与投影机的启动关闭以及开机初始化,结合本装置就可以克服传统多媒体中央控制器缺乏反馈控制的缺点。

This paper presents the design of a synchronization device between multimedia computer and projector based on stc15w204s single chip microcomputer.In the design,the serial port circuit of single chip microcomputer,USB port and serial port of computer are combined to effectively overcome the problem of non-synchronization between computer and projector.It is proved that the device can automatically synchronize the startup,shutdown and startup initialization of computer and projector.Combined with the device,the lack of feedback control in traditional multimedia central controller can be overcome.