The design of constant-temperature-and-humidity box based on LabVIEW

Runjing Zhou; Lina Zhang

doi:10.1117/12.717787

28 October 2006 The design of constant-temperature-and-humidity box based on LabVIEW

Runjing Zhou, Lina Zhang

Proceedings Volume 6358, Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control, and Computer Simulation; 63580O (2006) https://doi.org/10.1117/12.717787
Event: Sixth International Symposium on Instrumentation and Control Technology, 2006, Beijing, China

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.

Citation Download Citation

Runjing Zhou and Lina Zhang "The design of constant-temperature-and-humidity box based on LabVIEW", Proc. SPIE 6358, Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control, and Computer Simulation, 63580O (28 October 2006); https://doi.org/10.1117/12.717787

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