解决数/模混合视频监控以及当前安防工程中多品牌视频监控系统之间不能组网的问题-Solve the D/A mixed video surveillance and security projects in the current multi-brand network video surveillance systems can not be the problem

利用数据采集卡进行数据采集，数模、模数转换，数字量和模拟量输出-Data acquisition card for data acquisition, digital-analog conversion, digital and analog output

摄像头的工作原理大致为：景物通过镜头(LENS)生成的光学图像投射到图像传感器面上，然后转为电信号，经过A/D(模数转换)转换后变为数字图像信号，再送到数字信号处理芯片(DSP)中加工处理，再通过USB接口传输到电脑中处理，通过显示器就可以看到图像了(The working principle of the camera is roughly: the scenery through the lens (LENS) optical image onto the image sensor surf