基于DSP+FPGA多视频通道的切换控制  

Switching control of multiple video channels based on DSP and FPGA

作　　者：李国军[1] 敬守钊[1] 黄自力[2] 唐湘成[2] 

机构地区：[1]电子科技大学,四川成都610054 [2]西南技术物理研究所,四川成都610041

出　　处：《电子设计工程》2010年第11期113-116,共4页Electronic Design Engineering

摘　　要：为了扩大监控范围,提高资源利用率,降低系统成本,提出了一种多通道视频切换的解决方案。首先从视频信号分离出行场信号,然后根据行场信号由DSP和FPGA产生控制信号,控制多路视频通道之间的切换,从而实现让一个视频处理器同时监控不同场景。实验结果表明,该方案可以在视频监控告警系统中稳定、可靠地实现视频通道的切换。To expand the scope of monitoring, improve resource utilization, reduce system cost, a multiple video channels signal switching method is pointed out in this paper. First, horizontal sync signal and field sync signal from the video signal are separated, then control signal according to the sync signal by DSP and FPGA is generated to control the switching between multiple video channels. Thus, it achieves to make a video processor to monitor different place. Experimental results show that the method can realize video channel switching reliably, and is applied in the video monitoring warning system successfully.

关 键 词：多路视频通道 DSP FPGA 同步信号 告警 

分 类 号：TN911.72[电子电信—通信与信息系统]