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Proceedings Paper

The design of constant-temperature-and-humidity box based on LabVIEW
Author(s): Runjing Zhou; Lina Zhang
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Paper Abstract

On LabVIEW, a constant-temperature-and-humidity box is designed based on PID neural network decoupling control. For temperature measurement system, we use multi-sensor data fusion algorithm to process data. For humidity measurement system, we adopt dynamic filter technique to optimize data, and we use time series predictor using neural network to detect single sensor's fault. The coupling relation between the temperature and humidity has been considered. The detailed control algorithm of the system has been given. The simulating results of the system's mathematical model indicate that the controller can be applied to a coupling multi-input and multi-output (MIMO) system to decouple multivariable system or trace the set point value, and it has a perfect dynamic and static response performance. Compared with fuzzy and decoupling control system, this measure has higher static precision and can eliminate system error. What's more, the system is high reliable. Another feature of this system is operation easily, setting of temperature and humidity separately, cost low, and quality of the control curve visible owing to LabVIEW. This method also uses LabVIEW's features that it is interactive graphics, a state-of-the-art interface, and a powerful graphical programming language to make this system briefly.

Paper Details

Date Published: 28 October 2006
PDF: 6 pages
Proc. SPIE 6358, Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control, and Computer Simulation, 63580O (28 October 2006); doi: 10.1117/12.717787
Show Author Affiliations
Runjing Zhou, Inner Mongolia Univ. (China)
Lina Zhang, Inner Mongolia Normal Univ. (China)


Published in SPIE Proceedings Vol. 6358:
Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control, and Computer Simulation

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