【摘要】 流调是疫情工作中的一项基本且重要的工作，其能够让密切接触者尽快得到排查，是防止疫情扩散的重要措施。为了提升流调的客观性和准确性，借助5G移动网络丰富的大数据，通过多维度关联性分析、定位算法优化、追溯患者移动轨迹、建立个体关系图谱等方式精确锁定时间、地点及周边密集接触人群，从而更精准地定位疫情传播路径，成为疫情流调的有力工具。更多还原

【Abstract】 Epidemiological investigation is a fundamental procedure in the epidemic prevention work.It can make the close contacts get screening as soon as possible.It is an important measure to prevent the spread of the epidemic.With the help of 5G mobile network big data,by multi-dimensional correlation analysis,optimization of positioning algorithm,tracing the movement of patients and establishing individual relationship map,it can accurately lock the time,place and surrounding dense contact population,and can more accurately locate the epidemic transmission path,and become a powerful tool for epidemiological investigation.更多还原