一、技术发展背景在安防行业内,监控覆盖的范围越来越大,为了支持越来越大的业务网络,业内开始引入NGN的体系架构,从而实现了控制和媒体的相分离以及应用和控制的相分离,也实现了大网络部署推动各种标准化工作的进展。目前,物联网是一个技术热点,物联网最大的变化就是引入了各种各 I. Background of Technology Development In the security industry, the coverage of monitoring is increasing. In order to support more and more business networks, the industry has started to introduce the NGN architecture so as to realize the separation of control and media as well as the application and control Phase separation, but also to achieve the deployment of large networks to promote the progress of various standardization work. At present, the Internet of Things is a technical hot spot, and the biggest change of the Internet of Things is the introduction of various