A Rapid Monitoring Method for Natural Gas Safety Monitoring

The quick leakage alarm and the accurate concentration prediction are two important aspects of natural gas safety monitoring.  In this paper, a rapid monitoring method sensor data sharing, simultaneous output concentrations is proposed to accelerate speed predict possible impact leakage. method, Dempster-Shafer evidence theory used fuse trend judgment CUSUM (cumulative sum) Gauss-Newton iteration concentration.  experiment system based on TGS2611 was built.  The results show that fusion significantly better than single method. time more advanced (being averagely, 10.4% 7.6% in advance respectively). relative deviations predicted were maximum (13.3%) at 2000 ppm (parts per million) minimum (0.8%) 6000 ppm, respectively.