无线数据通信快速组网方法及组网成功率计算

Fast Networking Method and Networking Success Probability Calculation of Wireless Data Communication System

针对1个主台控制多个从台的无线数据传输系统,采用半双工跳频电台作为无线传输设备,设计了一种基于跳频时隙的系统数据帧结构及主台和从台的组网流程。系统的数据链路层设计在电台内部,有效地减少了组网时间和传输时延。并采用瑞利衰落模型、Egli电波传播衰减模型和实际设备特性推导、计算组网成功率,1个主台4个从台的系统组网时间实测少于4 s,与计算结果比较吻合。

For a wireless data transmission system with one master controlling multiple slaves,using half duplex frequency hopping radio as the wireless transmission device,a system data frame structure based on frequency hopping time slot and the networking process of the master and slave are designed.The data link layer of the system is designed inside the radio to effectively reduce networking time and transmission delay.The networking success probability is deduced and calculated by using Rayleigh fading model,Egli radio wave propagation attenuation model and actual equipment characteristics.The system networking time of four slave stations and one master station is less than 4 s,which is quite consistent with the calculation results.