列车UDP数据传输可靠性快速分析方法

Quick Analysis Method of Train UDP Data Transmission Reliability

用户数据报协议(User Datagram Protocol,UDP)不采用重传机制,在链路受接触不良、电磁干扰影响下可能会丢包。研究Wireshark软件自带的统计功能和排序功能,实现单个数据文件的快速分析。基于排序思想,进一步研究使用软件算法的Auto-Array方法。通过实测对比,Auto-Array方法能实现多个数据文件的快速分析,并输出UDP数据文件中的详细的丢包信息,为评价UDP传输可靠性提供依据。

UDP(User Datagram Protocol)does not adopt retransmission mechanism.Packet loss may happen when poor contact or electromagnetic interference occurs,which can affect the link.Quick analysis for a single data file is achieved by using the Wireshark's built-in statistical and ranking functions.Based on the ranking idea,Auto-Array method,which adopts a software algorithm,is further studied.Tests and comparisons show that Auto-Array method can provide quick analysis for multiple data files.Details of the packet loss in UDP data fles can also be output.The method can provide criteria for evaluating the reliability of UDP transmission.