利用视频监控技术探测、监视设防区域，实时显示、记录现场图像，检索和显示历史图像的电子系统或网络系统。
随着计算机、网络以及图像处理、传输技术的飞速发展，视频监控技术逐渐向数字系统过渡。
With the computer , network , pattern process , development at full speed of transmission technology, the video controls technology and carries out the transition to the digital system gradually.
近年来，随着网络带宽、计算机处理能力和存储容量的迅速提高，智能视频监控技术应运而生。
In recent years, as network bandwidth, computer processing power and storage capacity of the rapid increase, the intelligent video surveillance technologies have emerged.
本文介绍采用数字传感器、视频监控技术的集控联锁脱轨器系统的设计原理、技术特点及功能。
This article expounded the designing principle, technical features and functions of concentrated-control interlocking derailer by adopting the digital sensors and video monitors.
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