安防监控系统处理层应该被称为音视频处理层，它将有 传输层送过来的音视频信号加以分配、放大、分割、智能分析等处理，有机的将表现层与控制层加以连接。 音视频分配器、音视频放大器、 视频分割器、 音视频切换器等等设备都属于这一层。
The processing layer of the security monitoring system should be called the audio and video processing layer. It processes the audio and video signals sent from the transmission layer, such as distribution, amplification, segmentation, intelligent analysis, etc., and organically connects the presentation layer and the control layer. Audio and video distributors, audio and video amplifiers, video splitters, audio and video switchers and other equipment all belong to this layer.