一、前言随着我国经济建设和各项社会事业等快速发展,城市化进程不断加快,城市建设中的交通管理、社会治安、重点区域防范等诸多城市管理问题应运而生,而公安警力的增加远不能满足实际需求的增长,将科技手段转化为直接战斗力的城市治安视频监控成为了解决问题的重要手段。现阶段,以公安治安应用为主轴的平安城市系统逐步演进成为了以城市联网安防视频监控为基础,涵盖公安、交通、城管、安监、教育、环保、 I. Introduction With the rapid development of China’s economic construction and various social undertakings, the urbanization process has been accelerating. Many problems of urban management such as traffic management, social order and prevention in key urban areas have arisen. However, the increase of public security and police forces Far can not meet the growth of actual demand, the video surveillance of public security of the city that turns science and technology means into direct fighting becomes an important means to solve the problem. At this stage, the safe city system with the application of law and order in public security as the main axis has gradually evolved into a city-based networked security video surveillance system that covers the areas of public security, traffic, urban management, safety supervision, education, environmental protection,