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提出一个在应用层解决应急指挥系统中异构通信网络互联问题的传输服务模型,给出模型的主要传输服务功能,对通信节点标识、转发表生成与维护以及扩充性等关键技术进行探讨。该模型结合异构通信网络的特点及发展趋势,将IP网络作为系统通信的主要方式,将其他通信方式作为实现特定通信能力的辅助手段。应用结果证明,该模型可以提升应急指挥能力,减小异构网络互通的复杂性。
A transmission service model is proposed to solve the interconnection problem of heterogeneous communication networks in emergency command system at application layer. The main transmission service functions of the model are given, and the key technologies such as communication node identification, generation and maintenance of forwarding tables, and expansibility are discussed. Combining with the characteristics and development trend of heterogeneous communication networks, this model regards IP network as the main mode of system communication and uses other communication modes as auxiliary means to achieve specific communication capabilities. The application results show that this model can enhance the emergency command ability and reduce the complexity of heterogeneous network interworking.