基于动态通讯元的TCP客户端新型通讯模型的研究与应用

The Research and Application of a New TCP Client Model Based on Dynamic Communication Unit

该文针对复杂协议的网络通讯,建立了一个全新的TCP（Transmission Control Protocol）客户端的通讯模型。该模型提出了一个网络通讯的最小单位——通讯元,利用解释结构模型分析复杂协议的通讯元图谱,将通讯元动态地添加到处理线程中进行匹配,简化了处理过程并极大提高了运行效率。同时该文利用该模型设计出了一个通用的TCP客户端模块,封装了通讯底层的细节,提供了方便的接口。将该模块应用于城市消防远程监控软件设计中,实际运行表明：该模型具有简单的接口和稳定、高效的运行机制。

In this paper we proposed a new communication model of TCP client （Transmission Control Protocol） to solve the problem of the network communication which has complex protocols. The idea of communication unit which is the smallest unit of a network communication is advanced, so that we can describe the complex protocols by these units. Then analyze the communication units pattern of the complex protocol by means of interpretive structure modeling（ISM）, it turns out that it will be a much more effective way to add communication units dynamically into the processing thread, and at the same time the pro- cess could be simplified. Based on this model a general TCP client model has been designed with lower-layer-protocol encapsu- lated inside and convenient interfaces accessible. This module has been applied in the city elevator remote monitoring system, and it has a very good performance because of its simple interfaces, stabilization and high effectiveness.