地铁是一个建立在地下的密闭交通网络,在人员疏散和通风系统方面相对薄弱,很容易由于不慎发生灾难,更有可能给恐怖分子所利用,所以在地铁这类轨道交通的安全运营一直是各地政府高度关注的重要问题。而在城市轨道交通安防系统中,无论从重要性还是所需的资金费用,视频监控系统都占有主导地位。因此,对系统的建设以及设备的选型,地铁用 Subway is a confined traffic network built underground. It is relatively weak in personnel evacuation and ventilation systems. It is vulnerable to accidental disasters and more likely to be exploited by terrorists. Therefore, the safe operation of rail transit in the MTRC has always been Important issues of great concern to all local governments. In the urban rail transit security system, the video surveillance system takes the lead in both the importance and the capital cost required. Therefore, the system construction and equipment selection, subway use