Data-driven adaptive GM(1,1) time series prediction model for thermal comfort.

Autor: Li X; Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China.; Beijing Key Laboratory of Computational Intelligence and Intelligent System, Beijing University of Technology, Beijing, 100124, China.; Engineering Research Center of Digital Community, Beijing University of Technology, Beijing, 100124, China., Xu C; Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China. xuc@emails.bjut.edu.cn., Wang K; Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China., Yang X; School of Automation, The University of Science and Technology Beijing, Beijing, 100083, China., Li Y; School of International Studies, Communication University of China (CUC), Beijing, 100024, China.
Jazyk: angličtina
Zdroj: International journal of biometeorology [Int J Biometeorol] 2023 Aug; Vol. 67 (8), pp. 1335-1344. Date of Electronic Publication: 2023 Jun 22.
DOI: 10.1007/s00484-023-02500-9
Abstrakt: In this paper, the future prediction of predicted mean vote (PMV) index of indoor environment is studied. PMV is the evaluation index used in this paper to represent the thermal comfort of human body. According to the literature, the main environmental factors affecting PMV index are temperature, humidity, black globe temperature, wind speed, average radiation temperature, and clothing surface temperature, and there is a complex nonlinear relationship between the six variables. Due to the coupling relationship between the six parameters, the PMV formula can be simplified under specific conditions, reducing the monitoring of variables that are difficult to observe. Then, the improved grey system prediction model GM(1,1) with optimized selection dimension is used to predict the future time of PMV. Due to the irregularity, uncertainty and fluctuation of PMV values in time series, based on the original GM(1,1) time series prediction, an adaptive GM(1,1) improved model is proposed, which can continuously change with time series and enhance its prediction accuracy. By contrast, the improved GM(1,1) model can be derived from the sliding window of the adaptive model through changes in the dataset and get better model grades. It lays a foundation for the future research on the predicted index of PMV, so as to set and control the air conditioning system in advance, to meet the intelligence of modern intelligent home and humanized function of sensing human comfort.
(© 2023. The Author(s) under exclusive licence to International Society of Biometeorology.)
Databáze: MEDLINE
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