Study On Remote Monitoring And Fault Diagnosis Based On Labwindows

Remote monitoring and fault diagnosis technology is computer technology, network technology, signal analysis and fault diagnosis technology integration is the development of production needs and the inevitable result of technological development. In recent years, domestic and foreign equipment condition monitoring and fault diagnosis technology has greatly developed, can effectively ensure device security, stability, long cycle, high-quality operation. With scientific and technological progress and development, machinery and equipment gradually moving to large-scale, automated, high-speed and complex.Virtual Instrument stressed that "software is the instrument" in the new concept is formed in the computer as the core hardware platform, using its own display of the virtual instrument control panel to software test and analysis capabilities of a computer instrument system. Virtual instrument data acquisition, data analysis and processing, the resulting output shows the three basic functions, while the data in real-time automatic collection is its most basic function. Based on Virtual Instrument Technology to achieve the remote monitoring system is inseparable from software development platform, Labwindows / CVI software development platform, using a simple and intuitive user graphic design is to support the "WYSIWYG" visual interactive technology. Labwindows / CVI development environment, a single, in the C language, edit, compile, link and debug on a modular manner. The interface objects and C code of communication attributes and their properties through the definition of pop-up menu.In this paper, an overview of research projects in the background and research significance, and then set the remote monitoring system design and implementation of virtual instrument technology and application development trends, describes the LabVIEW virtual instrument development platform. Finally, the discussion of fault signal analysis and feature extraction.The main content and key technology on the research work is as followings:1) In the remote monitoring and fault diagnosis system building, the structure of the system model and analysis of the overall design program, select the C / S mode and B / S mode hybrid model as a system's overall structural model.2) Research on virtual instrument technology hardware and software environment, the status quo, development trends and development platform. On this basis, the use of virtual instrument technology development equipment, remote monitoring and fault diagnosis system in order to achieve network-based signal analysis and fault diagnosis.3) for remote monitoring of a fault signal from the time-domain analysis, frequency domain analysis and time-frequency domain analysis shows three angles respectively, and focused on the wavelet analysis method to study the fault based on wavelet analysis of signal characteristics analysis and extraction of achieved.