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Currently in China the level of coal mine roadway roof abscission layer monitoring is low, especially in the most coal mine the transmission and observation of the underground separation data are by manual labor or by cable transmission, there is a high cost for coal mine. This paper introduces a roof abscission layer monitoring system based on ZigBee which is adapting to environment of coal mine...
A novel signal processing algorithm was proposed here for vibration signal analysis in condition monitoring and health diagnosis of rolling bearings. Such technique required an envelope being extracted from vibration signal with a complex analytical band-pass filter which was designed for better efficiency in processing than Morlet wavelet and Harmonic wavelet. The principal periodic component in...
Aimed at the deficiency of research and development in management information system for dam safety monitoring (DSMMIS) at home and abroad, considering the developing demand of dam safety monitoring and management, DSMMIS based on B/S (Browser/Server) have been researched. Based on B/S, the system is designed and realized by adopting ASP.NET(C#) technique and SQL server 2005 database, mainly including...
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