基于自组网的机车近距离无线重联控制系统研究  

Research on Locomotive Short Distance Wireless Coupling Control System Based on Ad Hoc Network Technology

作　　者：邓亚波 林磊 徐富宏 DENG Yabo;LIN Lei;XU Fuhong(Zhuzhou CRRC Times Electric Co.,Ltd.,Zhuzhou,Hunan 412001,China)

机构地区：[1]株洲中车时代电气股份有限公司,湖南株洲412001

出　　处：《控制与信息技术》2021年第1期99-105,共7页CONTROL AND INFORMATION TECHNOLOGY

基　　金：国家重点研发计划(2016YFB1200401)。

摘　　要：为了提高机车近距离无线重联控制系统的冗余性和抗干扰性,文章基于自组网技术设计了一套机车近距离无线重联控制系统,其通过建立无线通道传输WTB总线数据、关键硬线信号及语音信号,实现了多台机车同步控制运行。该系统利用自组网技术自愈合的特点,可以在不增加设备的前提下,进一步提高机车近距离无线重联控制系统的冗余性;同时通过自动跳频,选择信噪比(SNR)和信道质量指示(CQI)更优的信道进行通信,提升了系统的抗干扰性能。实验室测试表明,相比基于WiFi模块的系统,该系统的SNR提高约5 dB,同时丢包率由0.029 2%减少至0.010 9%。In order to improve the redundancy and anti-interference performance of locomotive short range wireless coupling control system,this paper proposes a design of locomotive short range wireless coupling control system based on Ad Hoc network technology.WTB bus data,key digital signal and voice signal are transmitted through the established wireless channel,so that multiple locomotives are controlled synchronously.The system makes use of the self-convergence characteristics of Ad Hoc network technology,which can furtherly improve the redundancy of locomotive short range wireless coupling control system without additional equipments.At the same time,through automatic frequency hopping,it selects channels with better SNR and CQI for communication,which improves the anti-interference performance of the system.Experimental results show that the SNR of the system is improved by about 5 dB compared to that of the systems based on WiFi modules,and the packet loss rate is reduced from 0.0292%to 0.0109%.

关 键 词：自组网技术 机车无线重联 同步控制 自愈合 自动跳频 

分 类 号：U260.13[机械工程—车辆工程]