DocumentCode :
1999995
Title :
The control of closed soilless growing system in greenhouse agriculture
Author :
Zhang Li ; Yong, Wang ; Sun DeMin ; ZengQiang, Duan
Author_Institution :
Dept. of Autom., Univ. of Sci. & Technol. of China, Hefei, China
Volume :
2
fYear :
2002
fDate :
2002
Firstpage :
1111
Abstract :
A control strategy for control in a closed soilless growing system is investigated, considering the combination of sensor technology and expert system technology. In the paper, the method based on curve fitting is introduced to calculate the density of NO3-, K+, Ca2+ and the value of pH and EC. Considering the complexity of plant nutrition, we present a model for the control of nutrition ingredient. The experiment results show that the strategy is effective.
Keywords :
agriculture; chemical variables control; curve fitting; expert systems; intelligent control; Ca2+; K+; NO3-; closed soilless growing system; curve fitting; expert system technology; greenhouse agriculture; ion-selective electrode; plant nutrition; sensor technology; Agriculture; Automatic control; Automation; Control systems; Curve fitting; Electrodes; Intelligent control; Sensor systems; Soil; Sun;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Control and Automation, 2002. Proceedings of the 4th World Congress on
Print_ISBN :
0-7803-7268-9
Type :
conf
DOI :
10.1109/WCICA.2002.1020751
Filename :
1020751
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1999995
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