另外，24小时保安服务、闭路电视监控、精密警报及出入管理控制系统均有效确保高度严密的保安。
In addition, the 24-hour security service, CCTV monitoring, alarm and access control precision control systems are effective in ensuring a high degree of tight security.
介绍了闭路电视前端设备控制系统的原理和作用，着重说明了电源控制、信号切换控制的原理和电路，以及控制流程图与软件。
The principle and the action of CATV device control system is introduced. The hardware and the software of the controller of power, how to deal with the switch method of remote signal is explained.
除了标准的软件组件，新的控制器无需加入单独的出入口控制系统、闭路电视、入侵、和对讲系统等。
With the addition of standard software components, the new controller eliminates the need for separate, dedicated access control, CCTV, intrusion, and intercom systems.
年底时，港岛区有308个路口由区域交通控制系统控制，并有40部闭路电视摄影机，用以监察交通情况。
By the end of 1997, 308 signalised junctions on Hong Kong Island were under the ATC system and 40 closed circuit television (CCTV) cameras were in use for traffic surveillance.
年底时，港岛区有308个路口由区域交通控制系统控制，并有40部闭路电视摄影机，用以监察交通情况。
By the end of 1997, 308 signalised junctions on Hong Kong Island were under the ATC system and 40 closed circuit television (CCTV) cameras were in use for traffic surveillance.
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