GONG Xue-fei, XU Jing, SUN Shou-tong, et al. Application of PSO-BP neural network in multiple harmful gas detection[J]. 2015, 34(2): 154-156+160. DOI: 10.13873/J.1000-9787(2015)02-0154-03.
Aiming at problem of muliple harmful gas detection
a gas detection system is developed by combining sensor array with BP neural network algorithm. This test system uses BP neural network algorithm for regression analysis on response signal of four kinds of mixture harmful gases measured by sensor array. In order to improve prediction accuracy of BP neural network
adopt PSO algorithm to optimize BP neural network weights value and threshold value. The results show that the average relative error predicted by PSO optimized BP neural network( PSO-BP) is less than 2 %
it can effectively solve problem of cross-sensing of gas sensor.
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