Fault diagnostic system and method for under industrial producing process small sample condition

• Main Author: XINGGAO LIU
• Format: Patent
• Language: English
• Published: 27.06.2007
• Subjects: CALCULATING; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The fault diagnosis system includes on site intelligent instrument connected to objects of industrial process, DCS system, and upper device. The DCS system is composed of data interface, control station, and database. The intelligent instrument is connected to DCS system, and upper device. The upper device includes the standardization process module, functional module of pivot element analysis, functional module for supporting classifier of vector machine, failure predication module, signal acquisition module, module for determining data to be diagnosed, and fault diagnosis module. The invention also discloses a fault diagnosis method. The invention discloses fault diagnosis system and method capable of well treating measured non-linear data obtained from small sample with high capability of generalizing model, as well as capable of obtaining good diagnosis result under condition of small sample in industrial process.