由于视频技术发展的限制,目前的监控系统几乎都在沿用摄像头加画面处理器加录像机构成的原始闭路电视设计方案。通过画面处理器、长时间录像机等产品的应用,仍然解决不了录像带重复使用,导致图像质量低、录像带不易保管、资料容易删改、录像机磁鼓寿命短、需专人看管换带、检索 Due to the limitations of the development of video technology, almost all of the current surveillance systems follow the original CCTV design made up of a camera plus a picture processor and a video recorder. Through the screen processor, long time video recorder and other products, still can not solve the repeated use of the tape, resulting in low image quality, the tape is not easy to save, the data is easy to delete, the recorder drum life is short,