| 传统模拟闭路视监控系统（CCTV） |
| 添加时间：2021/11/16 14:20:20 浏览次数： |
| 传统模拟闭路视监控系统（CCTV）： Traditional analog closed-circuit television (CCTV) system: 依赖摄像机、线缆、录像机和监视器等专用设备。例如，摄像机通过专用同轴缆输出视频信号。缆连接到专用模拟视频设备，如视频画面分割器、矩阵、切换器、卡带式录像机（VCR）及视频监视器等。 It relies on special equipment such as cameras, cables, video recorders and monitors. For example, the camera outputs video signals through a dedicated coaxial cable. The cable is connected to dedicated analog video devices such as video picture splitter, matrix, switcher, VCR and video monitor. 模拟CCTV存在大量局限性： Analog CCTV has many limitations 有限监控能力只支持本地监控，受到模拟视频缆传输长度和缆放大器限制。 The limited monitoring capability only supports local monitoring, which is limited by the transmission length of analog video cable and cable amplifier. 有限可扩展性系统通常受到视假山制作 不锈钢铸件 铝箔真空袋 七孔梅花管 hdpe硅芯管 液压钢坝 PVC软管 飞行激光打标机 沥青保温泵频画面分割器、矩阵和切换器输入容量限制。 Limited scalability systems are usually limited by the input capacity of video frame splitter, matrix and switcher. 录像负载重用户必须从录像机中取出或更换新录像带保存，且录像带易于丢失、被盗或无意中被擦除。 The video load is heavy, users must take out or replace the new video tape from the video recorder to save, and the video tape is easy to be lost, stolen or inadvertently erased. 录像质量不高是主要限制因素。录像质量随拷贝数量增加而降低。 |
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