In grape cultivation, precise irrigationcontrolsystems can improve the yield and taste of grapes and enhance the efficiency of water use. A drip irrigation control system, based on LoRa remote wireless technology, a...
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ISBN:
(纸本)9781665494755
In grape cultivation, precise irrigationcontrolsystems can improve the yield and taste of grapes and enhance the efficiency of water use. A drip irrigation control system, based on LoRa remote wireless technology, and a dynamic neural network, is designed in this paper. Lora remote wireless communication terminal, which can connect sensors or control devices, such as soil temperature, digital flowmeter, and so on, at the same time, can be remote control such as pumps, water valves, and other equipment operation. A prediction model was established using the Long Short-Term Memory Network (LSTM) which is a class of the Recurrent Neural Network (RNN). The trained model uses past soil moisture, precipitation and climate measurements to predict the moisture content of vineyard soils based on a pre-set amount of time, thereby calculating the amount of irrigation and determining the timing of irrigation. According to the training results of the model, the root mean square error (RMSE) is 0.116 similar to 0.171, the range of R-2 is 0.941 similar to 0.986, and the range of mean absolute error (MAE) is 0.071 similar to 0.081. For predicting water content at different soil depths, R-2>0.9 shows good model performance and prediction effect. The system has good working stability, high prediction accuracy, and slight deviation. The planter can apply it to the irrigation of large, medium, and small-scale grape plantations in the actual planting environment. Compared with the traditional irrigationcontrolsystem, advanced irrigation methods can be realized, improving the irrigation rate and saving irrigation water.
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