论文部分内容阅读
随着安全风险的加大,越来越多的地方需要安装可视化监视设备,这样就可以对许多偏僻的地方所发生的情况进行监控和录像。此外,由于智能移动、温度和声音传感器的出现,视频监视变得非常有价值。智能传感器与视频分析学相结合,产生了9·11恐怖袭击事件之后的新一代数字安全防范系统。视频、分析学和传感器的结合给警察当局做出更好决策提供帮助,并且大大缩短了对事件做出回应的时间。由于安防设备正在从封闭式的模拟系统转向开放式的数字IP系统,网络就成为一个非常关键的问题,因为系统所有组件都要通过网络相互连接,只有网络正常,基于网络的安全防范系统才能让系统的每个组成构件共享和传输敏感的安全信息。伴随IP标准的发展,安全专业人员在如何挑选成本效益高、并且性能可靠的传输介质问题上面临着众多选择,以太网方式得到最广泛的应用。过去,无线网络因为性能和可靠性差一直不受人重视,而如今已经为人们所接受。在许多远程安全应用中,无线网络成为一的选择。
As security risks increase, more and more places need to have visual surveillance equipment installed to monitor and record video footage in many remote locations. In addition, video surveillance has become very valuable due to the emergence of smart mobile, temperature and sound sensors. The combination of smart sensors and video analytics has generated a new generation of digital security precautions after the Sept. 11 terrorist attacks. The combination of video, analytics and sensors helps police authorities make better decisions and dramatically shortens the time it takes to respond to the incident. As security equipment is moving from closed analog systems to open digital IP systems, the network becomes a critical issue as all components of the system are connected to one another over the network. Only when the network is normal, the network-based security system can Each component of the system shares and transmits sensitive security information. With the development of IP standards, security professionals are faced with many choices on how to choose a cost-effective and reliable transmission medium, and Ethernet is the most widely used. In the past, wireless networks were poorly perceived due to poor performance and reliability and are now accepted by the public. In many remote security applications, wireless networks are an option.