Application of Particle Swarm Optimization BP Algorithm in Air Humidity of Greenhouse Crops

2019 International Conference on Intelligent Manufacturing and Intelligent Materials

Li-Li, Guo^1 ; Yong, Liu^1 ; Zi-Wei, Liu^1 ; Hua-Wei, Sun^2

College of Electronic Engineering, Heilongjiang University, Harbin

150080, China^1

Heilongjiang Eastern Water Saving Equipment Co. Ltd., Suihua

150000, China^2

关键词: Air humidity;    BP neural networks;    Improved pso algorithms;    Network topology structure;    Neural network predictions;    Nonlinear inertia weight;    Particle swarm optimization algorithm;    Particle swarm optimization-neural networks;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/565/1/012003/pdf
DOI  :  10.1088/1757-899X/565/1/012003

来源: IOP

【 摘 要 】

The advancement of artificial intelligence, the synonym of precision agriculture has approached the public's vision, and the different requirements for air humidity in different growth periods of crops are proposed. The BP neural network optimized by particle swarm optimization algorithm is proposed to predict the air humidity of crops. Algorithm, this paper chooses BP algorithm network topology structure is 2-5-1, improves the inertia weight of PSO algorithm, proposes nonlinear inertia weight reduction strategy w = ws - (ws - we|f1√t/T|, trains BP algorithm with improved PSO algorithm, has no gradient information, jumps out local pole Value, reduce the number of iterations of the algorithm, and speed up the training speed of the neural network. According to the experimental results of MATLAB simulation, the air humidity prediction model of particle swarm optimization neural network is constructed, which proves the effectiveness of the improved particle swarm neural network prediction system. It can be shown that the proposed algorithm has a relative error of at least 0.0134 compared with other algorithms.