Thermal comfort degree real-time prediction system based on human body thermal physiological regulation model

Abstract

The invention discloses a thermal comfort degree real-time prediction system based on a human body thermal physiological regulation model. The thermal comfort degree real-time prediction system comprises a human body thermal regulation model, a thermal comfort degree model and a thermal comfort degree output module. A human body is divided into twenty parts according to the physiological structure, the heat exchange between the physiological regulation of the human body, the human body, clothing and the environment is fully considered, and a human core temperature and a skin temperature are calculated through metabolic heat generation, clothing thermal resistance and moisture resistance, an ambient temperature, humidity and a wind speed. The thermal comfort degree model establishes a quantitative relationship between a subjective thermal comfort degree and objective physiological parameters of the human body, and a real-time change rule of the human body thermal comfort degree is calculated by the human body core temperature and skin temperature obtained from a human body thermal reaction model. The real-time change law of the human body thermal comfort degree can be obtained through human body, clothing and environmental parameters. Compared with a traditional PMV model which can only obtain the thermal comfort degree under stable conditions, the human body thermal physiological regulation model is more in line with the actual situation, and meets the requirements of thermal comfort degree assessment, air conditioning regulation system development and smart garment development.

Description

technical field [0001] The invention relates to the field of human body thermal comfort for public safety, in particular to a real-time prediction system for thermal comfort based on a human body thermophysiological adjustment model. Background technique [0002] Human thermal comfort is the feeling of satisfaction with the external environment, which is jointly affected by thermal physiology and thermal psychology, and can be expressed by thermal balance equation combined with thermal comfort index. Human thermal comfort assessment is widely used in public safety, architectural design, automobile industry, clothing engineering, HVAC and other fields. The international standard ISO7730 uses the Mean Predictive Index (PMV) model to evaluate the thermal comfort of the human body. This model is established based on the thermal balance equation and the ergonomics experiment in a steady-state environment. The thermal comfort is quantitatively expressed by six major influencing fa...

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Problems solved by technology

However, the above-mentioned inventions have not yet analyzed the changing law of the human body's thermophysiological response, nor have they explored the relationship between the human body's thermophysiological regulation mechanism and the level of thermal comfort

Therefore, the existing inventions on thermal comfort have relatively large limitations, and it is impossible to accurately predict the variation law of human thermal comfort in real time

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