苏州轨道交通4号线5G车地数据传输探索及实践

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中图分类号：U285.4 文献标志码：B doi：10.20214/j.cnki.zhgdjt.2025.06.008

Abstract：With the continuous development of the rail transit industry and the accelerationlof urbanization，metro systems have become one of the most vital transportation modes in modern cities. Condition monitoring and data analysis of metro vehicles are crucial for ensuring operational safety，improving operational eficiency，andachieving inteligent management.Therefore，thereal-time acquisition and offloading of metro onboard data havebecome both urgent and essential.Based on theonboard data of Suzhou Metro Line 4，this study designed a tailored data transmission solution by leveraging the high-speed，lowlatency capabilities of 5G private networks，along with network slicing and edge computing technologies. The solution utilizes 5G network slicing to achieve service isolation and resource optimization，avoiding public network interference while ensuring real-time data processng and cybersecurity.This enables the hybrid private network to transmit data from Suzhou Metro Line 4 to ground-based inteligent O&M server clusters. Bigdata processing techniques are then applied for comprehensive diagnostic analysis，with results displayed viareport visualizations orautomated alerts.The5G train-to-ground data transmisson solution implemented in Suzhou Metro Line 4 provides innovative approaches and methodologies forofloading onboard rail transit data.

Key words： onboard data; 5G;edge computing; intelligent operation and maintenance; network slicing

苏州轨道交通4号线连接相城区、姑苏区、吴中区、吴江区等重要组团，是苏州市南北方向的骨干线路，线路全长 42km ，车站31座，此线路于2017年4月开通运营[1，至今已运行将近7年。（剩余6329字）