基于自组网的机车近距离无线重联控制系统研究

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...

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

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%.