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Coordination control of greenhouse environmental factors

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Abstract

Optimal control of greenhouse climate is one of the key techniques in digital agriculture. Greenhouse climate, a nonlinear and uncertain system, consists of several major environmental factors such as temperature, humidity, light intensity, and CO2 concentration. Due to the complex coupled correlations, it is a challenge to achieve coordination control of greenhouse environmental factors. This paper proposes a model-free coordination control approach for greenhouse environmental factors based on Q-learning. Coordination control policy is found through systematic interaction with the dynamic environment to achieve optimal control for greenhouse climate with the control cost constraints. In order to decrease systematic trial-and-error risk and reduce the computational complexity in Q-learning algorithm, case-based reasoning (CBR) is seamlessly incorporated into the Q-learning process. The experimental results demonstrate that this approach is practical, highly effective and efficient.

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Authors and Affiliations

Authors

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Correspondence to Feng Chen.

Additional information

This work was supported by National Natural Science Foundation of China (No. 60775014).

Feng Chen received the B. Sc. and M. Sc. degrees in computer sciences from Hefei University of Technology, Anhui, PRC in 1986 and 1994, respectively, and the Ph.D. degree in signal and information processing from the University of Science and Technology of China, Anhui, PRC in 2000. He is currently an associate professor with the Department of Automation, University of Science and Technology of China.

His research interests include artificial intelligence, data fusion, and intelligent traffic system.

Yong-Ning Tang received the B. Sc. and M. Sc. degrees in electrical engineering from Hefei University of Technology, Anhui, PRC in 1991 and 1994, respectively, and the Ph. D. degree in computer science from DePaul University, USA in 2008. He has been an assistant professor with the School of Information Technology, Illinois State University, Normal, USA since 2007.

His research interests include network monitoring and measurement, fault diagnosis, network security, and machine learning.

Ming-Yu Shen received the M. Sc. and Ph.D. degrees in computer sciences from Hefei University of Technology, Anhui, PRC in 1990 and 2008, respectively. He is currently an associate professor with the School of Computer and Information Science, Hefei University of Technology.

His research interests include artificial intelligence, wireless sensor networks, and network security.

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Chen, F., Tang, YN. & Shen, MY. Coordination control of greenhouse environmental factors. Int. J. Autom. Comput. 8, 147–153 (2011). https://doi.org/10.1007/s11633-011-0567-3

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