Genetic BP neural network-based solar greenhouse temperature prediction method
A BP neural network, solar greenhouse technology, applied in the field of solar greenhouse temperature prediction, to achieve the effect of simulation stability
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[0021] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0022] 1. Greenhouse temperature prediction model based on BP neural network
[0023] 1.1 BP neural network
[0024] Artificial neural network (ANN, Artifieial Neural Networks) is established by simulating the human brain nervous system. According to the different connection methods, its structure can be roughly divided into two categories: hierarchical and mesh. BP neural network is a kind of feed-forward network, and it is also the most widely used network at present. It uses the error backpropagation algorithm. The input information is processed through the input layer and the hidden layer to calculate the actual output value of each unit. If the expected output value cannot be obtained in the output layer, the actual output and the expected output are recursively calculated layer by layer. The differen...
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