视频监控系统控制键盘与解码器的接口设计

视频监控系统对矿井的安全生产具有重要意义，图像采集部分是视频监控系统的眼睛，安置在煤矿井下，包括摄像仪、镜头、云台、防护罩等设备。从整个系统看，图像采集部分是原始信号源，因此图像采集设备的好坏将直接影响图像信号质量和整个系统的质量。本文提到的控制键盘正是用来控制图像采集设备的，其发送的控制信号需通过一个有效的接口到达解码器从而实现控制。简要介绍了视频监控系统的组成，并详细介绍了控制键盘与解码器接口的硬件构成和软件设计思想。

Design of Interface of Controlling Board and Decoder in Video Monitor System

Video monitor system is quite significant for safe production in the mine.Picturecollected part is eye of the video monitor system,located in the mine,including camera,lens,yuntai,shield,etc.From the whole system,picturecollected part is source of original signal,so whether the picturecollected device is good or not affects the quality of picture even the whole system straightway.Controlling board is mentioned in this text is just used to control picturecollected device,and its controlling signal through an effective interface and get to decoder,so controlling is realized.This text generally introduces the composition of video monitor system; and detailedly introduces the designing process of interface,which connects a controlling board and a decoder that are used in video monitor system in the mine,including the hardware structure and the design idea of software.