Abstract: A system of real-time monitoring for the critical rotating machine is detailed.The system is developed under the powerful platform of LabWindows/CVI;Its data acquisition department adopts the technology of creating task，and handles critical energy to judge the status of rotating critical machine.The system has improved the real-time monitoring level of critical machine that it has a friendly interface and perfect function.

摘要： 根据卷曲机机组运行特点和现场要求，设计并开发出了一套在线实时状态监测系统。该系统以LabWindows/CVI作为软件开发平台，采用了基于库函数NIDAQmx创建任务技术实现数据采集;综合了以有效值、峰峰值和均值来判断旋转机械的实时运行状态的方法;提出了利用卷曲能判断卷曲机实时状态;提高了卷曲机实时状态监测的水平。系统界面友好，功能完善。