本文首先根据实际需要，设计基于分布式网络视频安防监控系统；其次，详细描述具有图像分析功能摄像机工 作原理与流程，完善暴力事件自动检测系统；最后，结合光流场变化情况及运动目标聚集状态判断是否存在暴力行为。实验表 明，该嵌入式系统识别准确性好、实时性强、可靠性高。

According to the actual need, this paper firstly designs the security monitoring system based on distributed network video. Then it particularly describes the working principle and flow of video camera with functions of image analysis, and improves the violence testing system in public places. Finally, violence is judged according to the changes in the optical flow field and the aggregated state of moving objects. The experimental results show that the embedded system has good accuracy, real- time performance and high reliability for recognition