PID Temperature Control Systems of Greenhouse Based on FSM Methodology

Yang Liu; Ji Qian; Juan Zhou

doi:10.4028/www.scientific.net/AMM.740.225

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 740PID Temperature Control Systems of Greenhouse...

PID Temperature Control Systems of Greenhouse Based on FSM Methodology

Abstract:

PID Temperature Control Systems of Greenhouse Based on FSM (finite state machines) Methodology is used in variable-temperature-controlled greenhouse. This system cored with an advanced 16 bit RISC (Reduced Instruction Set Computer) MPU MSP430F149 with low power. The sensors employ a higher accuracy Pt1000 Resistance Temperature sensor and Silicon Photoelectric Generator. In software design, it used the thinking of FSM programming increment style PID Control algorithm. The Flexible Application of FSM can make the program clear and more effectively to management. The increment style PID Control algorithm avoids paranormal value when setting temperature is changed and temperature control more accurately. The cite operation shows that this controller has the advantages such as high reliability and good control effect.

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Periodical:

Applied Mechanics and Materials (Volume 740)

Pages:

225-228

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.740.225

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Online since:

March 2015

Authors:

Yang Liu*, Ji Qian, Juan Zhou

Keywords:

FSM, PID Controller, Temperature Control, Variable-Temperature-Controlled

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* - Corresponding Author

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