摘要：【中文】本申请公开了一种电力监控系统通信的背景流量回放方法，在数据采集设备内设置有工控协议的检测模块；数据采集设备采集主站的镜像数据和日志数据，利用检测模块筛选主站的镜像数据和日志数据的第一背景流量；数据采集设备采集场站的镜像数据和日志数据，利用检测模块筛选场站的镜像数据和日志数据的第二背景流量；模拟设备根据接收的第一背景流量和第二背景流量进行背景流量回放。数据采集终端利用检测筛选主站和场站的镜像数据和日志数据的背景流量，减少了采集数据量，提高检索效率；模拟设备根据接收的第一背景流量和第二背景流量进行背景流量回放，使得模拟设备模拟的网络环境与电力监控系统的网络环境相似，方便检索，进而提高检索效率。 【EN】The application discloses a background flow playback method for power monitoring system communication, wherein a detection module of an industrial control protocol is arranged in data acquisition equipment; the method comprises the steps that a data acquisition device acquires mirror image data and log data of a master station, and a detection module is used for screening first background flow of the mirror image data and the log data of the master station; the data acquisition equipment acquires mirror image data and log data of the site, and screens second background flow of the mirror image data and the log data of the site by using the detection module; and the simulation equipment plays back the background flow according to the received first background flow and the second background flow. The data acquisition terminal detects background flow of mirror image data and log data of the screening master station and the field station, so that the data acquisition amount is reduced, and the retrieval efficiency is improved; the simulation equipment plays back the background flow according to the received first background flow and the received second background flow, so that the network environment simulated by the simulation equipment is similar to the network environment of the power monitoring system, retrieval is facilitated, and retrieval efficiency is improved.