报警网络中随机信息最佳传输模型研究

A Model of Optimized Transmission of Random Business in Alarming Network

在城市联网报警与监控系统的研究中,为保障报警业务数据的有效传输,在不同业务负载下如何设置合适的系统参数成为大型报警联网系统体系结构设计中的一个关键和难点问题。为解决上述问题,对大型报警联网系统中随机业务的最佳信息传输问题进行研究,利用随机过程理论分析了随机业务情况下,前端数据采集节点的个数分布参数、采集数据量分布参数、信道传输容量、数据缓存区大小对传输过程中平均丢包率的影响模型。通过对无缓存模式、有缓存模式、单数据包、复数据包情况下随机业务传输进行实验,提出的模型与仿真结果高度一致。改进算法可有效描述不同参数下的随机信息传输丢包情况,为大型报警联网系统中的节点参数设计提供指导。

This paper studied the problem of the best information transmission of random business in large monitoring and alarming network system. The stochastic process theory was used to analyze the impact model of average packet loss rate in network transmission with random business, including parameter of the distribution of the data collection nodes, the amount of data, channel capability and the buffer length. The experiments were carried out in buff- er-free mode, cache mode, single packet mode and composite packet mode. The results show that the proposed model is in accordance with the packet loss rate in simulation, which can effectively describe the packet loss rate with various parameters.