众所周知，录像是视频监 控的重要部分，由于监控录像 不同于通常的艺术录像，只要 比较连贯的、基本反映动作过 程的记录，因此模拟监控采用 丢场的方法，将５０场／Ｓ的图 像，记录一场丢掉几场，如目 前使用较多的“异步分场画面 控制器”等，这样能满足一般 场所视频监控的 As we all know, video surveillance is an important part of the video surveillance as different from the usual art video, as long as relatively consistent record of the basic process of action, so the analog monitor using the method of losing ground, 50 fields / S images, record Lost a few games, such as the current use of more “asynchronous sub screen controller,” so to meet the general site video surveillance