基于目录哈希树的车联网数据同步传输方法仿真

Simulation of data synchronous transmission method of Internet of Vehicles based on directory hash tree

针对当前使用的数据传输方法受到威胁数据影响,导致数据同步传输时间较长的问题,提出了基于目录哈希树的车联网数据同步传输方法仿真。通过车联网数据监控平台自助分析监测结果,设计了处理逻辑时序示意图,并确定了同步传输时序。构建目录哈希树,针对车辆道路切换、紧急路况两种情况设计数据同步传输流程,计算加权欧氏距离,获取最佳隶属度矩阵和规范矩阵,并构建威胁目标识别模型,实现威胁数据的精准识别。由仿真结果可知,该方法在数据大小为200 kB时,车联网数据同步传输时间的优势更为明显,最短为53.12×10-3s,具有良好传输效果。

Aiming at the problem that the current data transmission methods are affected by threat data,resulting in a long time of data synchronous transmission,a simulation method of data synchronous transmission of Internet of Vehicles based on directory hash tree is proposed.Through the self⁃service analysis of the monitoring results of the Internet of Vehicles data monitoring platform,the processing logic timing diagram is designed,and the synchronous transmission timing is determined.Build a directory hash tree,design a data synchronous transmission process for vehicle road switching and emergency road conditions,calculate the weighted Euclidean distance,obtain the best membership matrix and specification matrix,and build a threat target identification model to realize the accurate identification of threat data.The simulation results show that when the data size is 200 kB,the advantage of synchronous transmission time of vehicle networking data is more obvious,and the shortest is 53.12×10-3 s,with good transmission effect.