Design and Develop Online Monitoring and Early-warning System of Crane Structural Stress

作     者：XU Huping~1 LIN Weiguo~2 XU Changsheng~2 1.School of Automation,Wuhan University of Technology,Wuhan 430070,China 2.School of Material Engineering,Wuhan University of Tedmology,Wuhan 430070 ,China 

作者机构：School of AutomationWuhan University of TechnologyWuhan 430070China School of Material EngineeringWuhan University of TechnologyWuhan 430070China 

出 版 物：《武汉理工大学学报》 (Journal of Wuhan University of Technology)

年 卷 期：2006年第28卷第S2期

页      面：724-727页

学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0838[工学-公安技术] 

基　　金：Funded by the National Natural Science Fund grants 60574012 

主　　题：crane metal structure stress detect online monitor 

摘      要：This paper proposed an online monitoring and early-warning system of dynamic stress of crane metal structure, and designed this system’s hardware,including sensor unit,data gathering unit,and controlling & processing unit of this sys- tem,and discussed the waterproof protection for resistance strain wafer and scheme of data gathering and transmission of dynamic strain gauge,moreover developed system software of real-time and online monitoring dynamic stress,including data gathering by DLL and data display & processing based on Visual C++.The system applies the dynamic strain gauge to gather the data of the stress,and communicates between PLC control system of crane and upper industrial computer,so that realize the real-time online monitoring and early-warning for crane’s metal structure *** test results show this system carry on real time and online monitoring to dynamic stress of loud-bearing metal structure longly and stability,and can give an alarm and overload protection on *** the system has good practice value.