基于PRP提升CBTC车地无线通信可靠性方案研究

Research on Improving Reliability of CBTC Train-Ground Wireless Communication Based on PRP

为解决既有采用WLAN方案地铁线路面临的无线干扰问题,提出基于PRP的车地通信冗余方案,引入不同制式的无线链路,使信号车地通信单网信息经由冗余通道传输,从而提高信号系统车地通信的可靠性。该方案进行实验室及地铁线路现场动车测试验证,对测试结果进行对比分析,并对信号系统中PRP方案的应用场景进行展望。

In order to solve the problem of wireless interference faced by existing metro lines using WLAN scheme,this paper proposes a train-ground communication redundancy scheme based on PRP.Wireless links of diff erent standards are introduced to make the single network information of signal train-ground communication transmitted through redundant channels,so as to improve the reliability of train-ground communication in signal system.The scheme has been tested and verified in the laboratory and on-site on metro lines.In this paper,the test results are compared and analyzed,and the application scenario of PRP scheme in signal system is prospected.