Journal
INTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS
Volume 37, Issue 1, Pages 135-151Publisher
WILEY-HINDAWI
DOI: 10.1002/int.22620
Keywords
climate prediction; greenhouse; LSTM; sliding window
Categories
Funding
- Innovative Research Group Project of the National Natural Science Foundation of China [61872219]
- Natural Science Foundation of Shandong Province [ZR2019MF001]
- State Key Laboratory of Novel Software Technology [KFKT2020B08]
- Macao Science and Technology Development Fund under Macao Funding Scheme for Key RD Projects [0025/2019/AKP]
- Fundamental Research Funds for the Central Universities [30919011282]
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The study focuses on greenhouse climate prediction, proposing the GCP_lstm model which utilizes LSTM to capture the dependency of climate data. By adding a time sliding window and handling abnormal data, the model shows good robustness in predicting greenhouse climate change for three vegetable types.
Greenhouses can grow many off-season vegetables and fruits, which improves people's quality of life. Greenhouses can also help crops resist natural disasters and ensure the stable growth of crops. However, it is highly challenging to carefully control the greenhouse climate. Therefore, the proposal of a greenhouse climate prediction model provides a way to solve this challenge. We focus on the six climatic factors that affect crops growth, including temperature, humidity, illumination, carbon dioxide concentration, soil temperature and soil humidity, and propose a GCP_lstm model for greenhouse climate prediction. The climate change in greenhouse is nonlinear, so we use long short-term memory (LSTM) model to capture the dependence between historical climate data. Moreover, the short-term climate has a greater impact on the future trend of greenhouse climate change. Therefore, we added a 5-min time sliding window through the analysis experiment. In addition, sensors sometimes collect wrong climate data. Based on the existence of abnormal data, our model still has good robustness. We experienced our method on the data sets of three vegetables: tomato, cucumber and pepper. The comparison shows that our method is better than other comparison models.
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