WiFi6与物联网融合在智慧地铁中应用研究

Research on the application of WiFi 6 and Internet of Things integration in smart metro

随着基于IEEE 802.11 ax标准的第六代无线网络技术(WiFi 6)及物联网技术的不断发展与应用,为建设高性能、低时延、融合化无线网络提供了技术条件。根据深圳地铁20号线一期工程项目的实测数据,基于wifi 6技术的车地无线网络,在静止状态网络平均吞吐量达1.6 Gbps,列车在120 km/h高速运行状态下,网络平均吞吐量能达1 Gbps,最大切换时延小于30 ms,丢包率仅为0.04%;文章结合WiFi 6高带宽、高并发、低时延及可拓展物联网应用等特点,研究WiFi6与物联网技术的融合方案在智慧地铁中的应用,一张WiFi 6网融合多种物联网技术,实现移动客服、智能安检、智能环境监控、自助客服、室内定位、设备监控、资产管理等功能,为智慧地铁的建设实施提供参考意见。

With the continuous development and application of the sixth-generation wireless network technology(WiFi 6)and the Internet of Things technology based on the IEEE 802.11 ax standard,it provides technical conditions for the construction of high-performance,low-latency,converged wireless networks.According to the measured data of the first phase project of Shenzhen Metro Line 20,the average throughput of the vehicle-to-ground wireless network based on WiFi 6 technology reaches 1.6 Gbps in the stationary state,and the average network throughput of the train can reach 1 Gbps in the high-speed operation state of 120 km/h,the maximum switching delay is less than 30 ms,and the packet loss rate is only 0.04%.This paper combines the characteristics of WiFi 6 with high bandwidth,high concurrency,low latency and scalable IoT applications,and studies the application of WiFi 6 and IoT technology in smart metros,and integrates a WiFi 6 network with multiple IoT technologies to realize mobile customer service,intelligent security check,intelligent environmental monitoring,self-service customer service,indoor positioning,equipment monitoring,asset management and other functions,and provides reference opinions for the construction and implementation of smart metro.