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一、前言随着我国科学技术的不断日新月异,安防技术也取得了长足的发展,视频监控系统也经历了三个时代的变革,从模拟时代到数字时代,再到现在的网络时代。目前以网络摄像机、视频服务器为代表的第三代网络视频监控系统正在蓬勃发展,在“平安城市”和“3111工程”的推动下,网络视频监控设备在国内市场占有份额迅速增加,在各地项目中也逐步获得广泛应用。
I. Preface As China’s science and technology continue to advance with each passing day, security technologies have also made great strides. Video surveillance systems have also undergone three changes of the times, from the analog era to the digital era and then to the present Internet age. Currently, the third generation network video surveillance system represented by network cameras and video servers is booming. With the promotion of “Safe City” and “3111 Project”, the market share of network video surveillance equipment has rapidly increased in the domestic market , It has also been widely used in various projects around the world.