基于Blackfin处理器的视频监控的实时性改进

Improvement of the Real-Time Character of Video Supervision based on Blackfin Processor

在对视频监控系统中应用广泛的ADSP-BF561 Blackfin处理器的实时性进行深入分析的基础之上,结合视频监控的实时性要求,对ADSP-BF561原有的2级事件控制机制进行改进,有效地提高了视频监控系统的网络中断的实时性能,改进前后的中断响应时间的测试和分析结果证明了此改进的有效性。

Combined the real-time requirement of video frequency supervision system, the ADSP-BF561 Blackfin processor which is widely used in video frequency supervision system is deeply studied. The main tasks of the paper are to improve the former 2-lever control mechanism of ADSP-BF561 and to enhance effectively the real-tittle net interrupt character of video frequency system network. The contrasted interrupt response time test of fore-and-aft improvement system shows that the improvement is validity.