Thermal comfort evaluation method and system based on individual thermal regulation

Abstract

The invention provides a thermal comfort evaluation method and system based on individual thermal regulation, and the method comprises the steps: determining a human body heat dissipation target based on a human body thermal balance equation according to the activity amount of a person, the thermal resistance of clothes and thermal environment parameters; determining heating or cooling heat transfer boundary conditions of each part of the body according to the action form, the action part and the working parameters of the individual thermal regulation device; calculating a thermal load and an average skin temperature based on the human body heat dissipation target and the heat transfer boundary condition in combination with a human body segmental heat transfer model; and determining a thermal comfort evaluation result based on the first mapping relation between the thermal load and the thermal feeling and the second mapping relation between the average skin temperature and the thermal feeling. Determining a human body heat balance relation by calculating the skin temperature and heat transfer capacity of each part under individual heat regulation; the method can adapt to different thermal environments, clothes, metabolic levels and adjusting modes, and the thermal comfort evaluation level is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal comfort evaluation, and in particular to a thermal comfort evaluation method and system based on individual thermal regulation. Background Art

[0002] In the construction and industrial fields, traditional centralized air-conditioning systems maintain a uniform and constant thermal environment in the space. However, due to individual differences, some people are still dissatisfied with the thermal environment even in the most comfortable environment.

[0003] Individual thermal regulation methods allow people to actively adjust their surrounding or body surface microclimate, improving thermal environment satisfaction. They have significant advantages in improving subjective thermal comfort in relatively cold or hot environments, have energy-saving potential, and are also effective in improving physiological function and subjective comfort for outdoor workers in extreme environments. Common methods include individual air supply, radiant heating / cooling, contact heating / cooling, and mixed heating / cooling. Individual thermal regulation devices alter surface heat dissipation by exchanging heat with local or overall parts of the human body, shifting the balance between heat production and heat dissipation. Local heating / cooling exposes the human body to a non-uniform environment, and both the local sensation and the location of the affected area affect overall thermal sensation and thermal comfort, with the torso generally having a greater influence.

[0004] However, current methods for calculating heat transfer in the human body under individual thermal regulation modes are not perfect, especially for the calculation of heat transfer in wearable cooling / heating clothing. It is difficult to fully determine the amount of heat dissipated by the human body, clarify the thermal balance relationship, and further determine the improvement effect on thermal comfort. Therefore, a method is needed that can establish a heat transfer calculation formula based on the human body thermal regulation process and target commonly used individual thermal regulation technologies, calculate skin temperature and heat transfer, determine the thermal balance relationship, and form a thermal comfort evaluation method. Summary of the Invention

[0005] To address these issues, this paper proposes a thermal comfort assessment method and system based on individual thermal regulation. By calculating skin temperature and heat transfer at various locations under individual thermal regulation, this method identifies the body's thermal balance. The system is adaptable to varying thermal environments, clothing, metabolic levels, and regulation methods, and can predict physiological parameters under extreme operating conditions. This method, which requires no equipment and uses theoretical models to assess thermal comfort, is both low-cost and highly practical, providing an evaluation method for device design and development and promoting the application of related technologies.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a thermal comfort evaluation method based on individual thermal regulation, comprising: According to the human activity level, clothing thermal resistance and thermal environment parameters, the human body heat dissipation target is determined based on the human body heat balance equation; Determine the boundary conditions for heating or cooling heat transfer at various parts of the body based on the action form, action site, and working parameters of the individual thermal regulation device; Based on the human body heat dissipation target and heat transfer boundary conditions, combined with the human body segmented heat transfer model, the heat load and average skin temperature are calculated; A thermal comfort evaluation result is determined based on a first mapping relationship between thermal load and thermal sensation and a second mapping relationship between average skin temperature and thermal sensation.

[0007] In a second aspect, the present invention provides a thermal comfort evaluation system based on individual thermal regulation, comprising: The benchmark calculation module is configured to determine a human body heat dissipation target based on a human body heat balance equation according to the amount of human activity, clothing thermal resistance, and thermal environment parameters; a boundary condition generation module configured to determine heating or cooling heat transfer boundary conditions for various parts of the body based on the action form, action site, and operating parameters of the individual thermal regulation device; A dynamic heat balance calculation module is configured to calculate heat load and average skin temperature based on the human body heat dissipation target and heat transfer boundary conditions in combination with a human body segmented heat transfer model; The dual-mapping evaluation module is configured to determine a thermal comfort evaluation result based on a first mapping relationship between thermal load and thermal sensation and a second mapping relationship between average skin temperature and thermal sensation.

[0008] In a third aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the thermal comfort evaluation method based on individual thermal regulation described in the first aspect.

[0009] In a fourth aspect, the present invention provides a computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the thermal comfort evaluation method based on individual thermal regulation described in the first aspect are implemented.

[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention first determines the heat dissipation target based on the amount of activity, clothing thermal resistance, and thermal environment parameters, providing a benchmark for evaluation. The heat transfer boundary conditions of each part are determined based on the characteristics of the individual thermal regulation device to adapt to the non-uniform thermal environment. The heat load and average skin temperature are calculated using a segmented heat transfer model of the human body to accurately quantify the local and overall thermal response. The thermal comfort evaluation results are determined by mapping the heat load, average skin temperature, and thermal sensation, achieving a multi-dimensional evaluation. The present invention can calculate the skin temperature and heat transfer amount of each part under different conditions, adapt to a variety of thermal environments and regulation methods, and predict thermal comfort through a theoretical model. This provides an evaluation method for the design and development of individual thermal regulation devices without relying on equipment, improving practicality and saving costs.

[0011] (2) For various commonly used individual thermal regulation methods, the present invention can calculate the local and average skin temperature of each part under different heat transfer conditions, and can output the heat transfer amount of each part and the whole, providing a practical method for analyzing the impact of each regulation method on the local and overall skin temperature, as well as the heat transfer amount.

[0012] (3) The present invention can realize relevant calculations under different thermal environment parameters, clothing thermal resistance, metabolic activity level, and individual thermal regulation mode, and can provide a reference for predicting the relationship between human physiological parameters and thermal balance under extreme working conditions.

[0013] (4) The present invention does not require any equipment or system. It can calculate and predict thermal comfort under different contact heat transfer conditions through theoretical models and parameter settings. It has low cost and strong practicality.

[0014] Advantages of additional aspects of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their description are used to explain the present invention but do not constitute a limitation of the present invention.

[0016] Figure 1 This is a main flow chart of a thermal comfort evaluation method based on individual thermal regulation provided by an embodiment of the present invention; Figure 2 A detailed flow chart of a thermal comfort evaluation method based on individual thermal regulation provided by an embodiment of the present invention; Figure 3 A diagram of an individual thermal regulation device provided by an embodiment of the present invention; Figure 4 A schematic diagram of a human body segment provided by an embodiment of the present invention; Figure 5A schematic diagram of the relationship between heat load and thermal sensation under 1-3 met metabolic activity levels provided in an embodiment of the present invention; Figure 6 Schematic diagram of the relationship between thermal sensation and average skin temperature under 1-3 met metabolic activity levels provided by an embodiment of the present invention; Figure 7 A schematic diagram of the changing relationship between thermal sensation and thermal comfort provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Example 1 like Figure 1 As shown, this embodiment discloses a thermal comfort evaluation method based on individual thermal regulation, comprising the following steps: S1: Determine the human body heat dissipation target based on the human body heat balance equation according to the activity level, clothing thermal resistance and thermal environment parameters; S2: Determine the heating or cooling heat transfer boundary conditions for each body part based on the action form, action site, and working parameters of the individual thermal regulation device; S3: Based on the human body heat dissipation target and heat transfer boundary conditions, combined with the human body segmented heat transfer model, calculate the heat load and average skin temperature; S4: Determine a thermal comfort evaluation result based on the first mapping relationship between the thermal load and the thermal sensation and the second mapping relationship between the average skin temperature and the thermal sensation.

[0019] The thermal comfort evaluation method based on individual thermal regulation proposed in this embodiment realizes the calculation of skin temperature and heat transfer of local parts of the human body when various common individual thermal regulation methods are used, and can determine the overall thermal balance relationship of the human body. This provides a new method for predicting human body temperature and thermal sensation when using individual thermal regulation methods, and for evaluating human thermal comfort.

[0020] The following is a wearable personal thermal regulation device for common 1-3met metabolic activities, combined with Figure 2 The implementation process of this embodiment is described in further detail.

[0021] Figure 3 This is the schematic diagram of the individual thermal regulation device, which includes clothing 1, a phase change cooling material package 2, and a micro fan 3. It is mainly used for personal cooling in high-temperature environments in summer. The clothing is long-sleeved trousers made of thin cotton material, corresponding to a thermal resistance of about 0.6clo. The phase change cooling material package is attached to the inside of the top, covering the front and back of the human body. Two micro fans are set on the underside of the pants to supply air into the pants.

[0022] 1. Determine the human body heat dissipation target The human body heat dissipation target is determined based on the human body heat balance equation according to the amount of human activity, clothing thermal resistance and thermal environment parameters.

[0023] First, clarify the relevant parameter settings. Set the ambient temperature according to the thermal environment. , relative humidity , air flow rate , mean radiant temperature ; The amount of activity is positively correlated with the body's metabolic heat production. The body's metabolic heat production is set according to the amount of activity. , unit is W / m 2 , 1met=58 W / m 2 ; Determine the total thermal resistance of human clothing based on human clothing For example, in this embodiment, the clothing is long pants and long sleeves, and is made of thin cotton material. For example, the corresponding total clothing thermal resistance is about 0.6clo.

[0024] Then, based on the human body heat transfer calculation formula and derivation formula in the existing average prediction model (PMV model), the total heat dissipation of the human body in a uniform environment is calculated. and body heat load (That is, the human body's heat dissipation target). The calculation formula is as follows: (1) (2) in, is the convective heat dissipation of the human body, in W / m 2 ; is the amount of heat radiated by the human body, in W / m 2 ; is the total evaporative heat dissipation on the skin surface, in W / m 2 ; is the sensible heat dissipation from breathing, in W / m 2 ; is the latent heat dissipated by breathing, in W / m 2 ; Mechanical work done by the human body, unit is W / m 2 .

[0025] Convective heat dissipation of the human body The calculation formula is: (3) in, The clothing area coefficient is equal to the ratio of the total clothing area of ​​the human body to the body surface area. calculate; is the human body convection heat transfer coefficient, unit is W / (m 2.℃), which represents the heat transfer rate per unit area under unit temperature difference, and is used to quantify the heat transfer coefficient. It should be understood that the air flow rate can be calculate: is the surface temperature of the garment.

[0026] Human body radiant heat dissipation The calculation formula is: (4) in, is the linear radiation heat transfer coefficient, which is basically unchanged in most indoor environments. For example, it can be calculated as 4.7W / (m 2 .℃); Total evaporative heat dissipation from the skin surface The calculation formula is: (5) (6) (7) (8) in, The moisture content of the skin surface; The maximum evaporative heat dissipation on the skin surface, in W / m 2 ; is the evaporation heat transfer coefficient of the human body, the unit is W / (m 2 .kPa), is the partial pressure of water vapor in the air, is the saturated water vapor partial pressure at skin temperature, in Pa; is the average skin temperature in °C; is the thermal resistance of clothing evaporation heat transfer, which can be calculated using the following formula: (9) in, is the total thermal resistance of clothing, and the thermal resistance of a single piece of clothing can be calculate: , the unit is clo; is the human body convection heat transfer coefficient, unit is W / (m 2 .℃), available air flow rate calculate: , the unit is ; Sensible heat loss from breathing The calculation formula is: (10) Latent heat dissipation from breathing The calculation formula is: (11) Through the above calculations, the heat dissipation target of the human body in a uniform environment is clarified, providing a benchmark for the subsequent evaluation of the effectiveness of individual thermal regulation devices.

[0027] This embodiment determines heat dissipation targets based on the human body's heat balance equation, using activity levels, clothing thermal resistance, and thermal environment parameters. Specifically, it derives a heat transfer formula based on the PMV model, quantifying heat dissipation through convection, radiation, and evaporation, providing a benchmark for evaluating individual thermal regulation effectiveness. This makes heat dissipation target calculation more responsive to practical needs, laying a scientific foundation for subsequent thermal comfort assessments in non-uniform environments. It overcomes the imperfect calculation of human heat dissipation in conventional techniques and effectively promotes the application of individual thermal regulation technology in the architectural and industrial sectors.

[0028] (2) Determine the boundary conditions for heating or cooling heat transfer at each part According to the action form, action site and working parameters of the individual thermal regulation device, the heating or cooling heat transfer boundary conditions of various parts of the body are determined.

[0029] Setting parameters of individual thermal regulators: Phase change material temperature Latent heat of phase change , Fan air volume ; and calculate the total clothing thermal resistance at this time In this embodiment, the individual heat regulating device does not increase the thermal resistance of the clothing, so .

[0030] When using this individual thermal regulation device, the human body is placed in a non-uniform thermal loop, requiring consideration of the varying heat transfer conditions in each segment. Heat transfer boundary conditions refer to the temperature, heat flux density, convective heat transfer coefficient, and ambient temperature at the boundaries of an object in a heat transfer problem. They define the heat transfer and exchange between the object and the surrounding environment or other objects.

[0031] Based on the human body segment division (head, neck, torso, upper arm, forearm, hand, thigh, calf and foot), the heat transfer boundary conditions of each part are determined in combination with the device's operation: in accordance with Figure 4 In the case of the human body segment, when using the device, the head and hands are in a naked state, and the heat transfer boundary conditions are environmental parameters, which means that the head and hands directly exchange heat with the external environment. The parameters of the external environment such as temperature, humidity, and wind speed determine their heat transfer conditions; For the trunk, which is covered with phase change material, its heat transfer boundary condition is the temperature of the phase change material, which means that the trunk mainly exchanges heat with the phase change material, and the heat transfer depends on the temperature state of the phase change material. The neck and arms are dressed normally, and the feet are wearing shoes and socks. The heat transfer conditions are set according to the boundary between the clothing and the environment. The heat transfer in these parts is carried out between the clothing and the external environment. The thermal resistance and other characteristics of the clothing and the environmental conditions jointly affect the heat transfer.

[0032] The heat transfer conditions for the legs are set according to the fan convection conditions and the ambient temperature and humidity parameters, that is, the heat transfer of the legs is affected by the convection conditions caused by the fan and the ambient temperature and humidity.

[0033] This embodiment determines heat transfer boundary conditions for each part based on the characteristics of individual thermal regulation devices, resolving the challenges of heat transfer calculations in non-uniform environments. It precisely sets boundary conditions for exposed, clothed, and worn thermal regulation parts, such as the torso covered with phase change material and fans supplying air to the legs. This overcomes the limitations of traditional models in non-uniform environments, making heat transfer calculations more consistent with the actual heat exchange state of the human body. This supports accurate analysis of the impact of individual thermal regulation on local and global thermal responses, improving the accuracy of thermal comfort assessments in complex scenarios.

[0034] (3) Calculation of heat load and average skin temperature Based on the human body heat dissipation target and heat transfer boundary conditions, combined with the human body segmented heat transfer model, the heat load and average skin temperature are calculated.

[0035] First, a segmented heat transfer model of the human body was established, dividing the human body into segments such as the head, neck, trunk, upper arm, forearm, back of hand, thigh, calf, and foot. The standardized human body parameters were determined based on the average information of Chinese citizens. The ratio of the skin area of ​​each segment to the total body surface area was calculated. α i , the head, neck, trunk, upper arm, forearm, back of hand, thigh, calf, and foot are 0.07, 0.01, 0.34, 0.08, 0.06, 0.05, 0.19, 0.13, and 0.07 respectively.

[0036] Afterwards, based on the heat transfer boundary conditions set for each segment, the surface heat and skin temperature of each segment such as convection, radiation, evaporation, and heat conduction are calculated. For exposed parts, the heat dissipation due to convection, radiation, and evaporation is calculated based on the environmental parameters; for clothed parts, the corresponding heat dissipation is calculated considering the thermal resistance of the clothing; and for phase change cooling parts, the heat conduction is calculated.

[0037] Based on the internal heat transfer relationship of human body segments and the thermal regulation model, the heat transfer boundary conditions of each segment are set to conduct surface convection of each segment. ,radiation ,evaporation , thermal conductivity The calculation of heat and skin temperature is carried out, and the respiratory convection evaporation and heat dissipation are calculated based on formula (10) and (11); on this basis, the human body heat load at this time is determined based on the heat generation and heat dissipation relationship (12), and the average skin temperature is determined based on the relationship (13) .

[0038] (12) Where, The convective heat transfer of the local part, the unit is W / m 2 ; The radiation heat transfer of the local part, the unit is W / m 2 ; The heat dissipated by sweat evaporation from the local skin, in W / m 2 ; The heat conduction of the phase change cooling part, unit is W / m 2 . It is the ratio of the skin area of ​​a local part to the total body surface area. In this embodiment, the ratios for the head, neck, trunk, upper arm, forearm, back of hand, thigh, calf, and foot are 0.07, 0.01, 0.34, 0.08, 0.06, 0.05, 0.19, 0.13, and 0.07, respectively.

[0039] (13) Where, It is the local skin temperature.

[0040] described 、 、 The calculations can be made according to equations (3) to (5), and can be calculated separately based on the boundary heat transfer conditions and related parameters of each part. It can be calculated by the following formula: (14) Where, The thermal resistance of the inner garment where the phase change material contacts the body surface, in clo. For example, considering that the human body is in a relatively hot environment during application and generally wears thinner cotton clothing on the inside, the thermal resistance can be 0.05-0.1 clo.

[0041] Convective heat transfer of each segment , radiation heat transfer and skin temperature The relationship is as follows. After substituting the boundary heat transfer conditions, it is determined through iterative calculation using the heat transfer relationship and model: (15) Through iterative calculation, the heat calculation of each segment converges and the accurate heat load and average skin temperature are obtained.

[0042] This embodiment combines a segmented heat transfer model of the human body to calculate heat load and average skin temperature, resolving the unclear thermal balance relationship in existing technologies. The human body is divided into nine segments, and the area ratio and heat transfer characteristics of each segment are considered. Through iterative calculation of convergent heat, skin temperature and heat transfer are accurately quantified. This overcomes the shortcomings of traditional methods in adapting to non-uniform environments, supporting multiple adjustment modes such as ventilation and radiation, providing a reference for predicting human physiological parameters under extreme working conditions and providing data support for the optimized design of individual thermal regulation devices.

[0043] (IV) Determining thermal comfort evaluation results According to the relationship diagram between heat load and thermal sensation, Figure 5 As shown, the thermal sensation is predicted based on the calculated human body heat load L TSV 1; According to the relationship diagram between average skin temperature and thermal sensation, such as Figure 6 As shown, the average skin temperature calculated based on Determine thermal sensation TSV 2;Use TSV 1 and TSV 2. Determine the thermal sensation range when using the individual thermal regulation device.

[0044] According to the obtained thermal sensation range, further Figure 7 Determine the thermal comfort zone range at this time. When the thermal comfort zone range is within 1, it can be considered very comfortable, when it is in the range of 1-2, it is slightly uncomfortable, and when it is greater than 2, it can be considered uncomfortable; output the calculation results; The results of evaluating discomfort can be further compared L m and L The difference relationship between the thermal regulation device and the thermal regulation device is changed; when L m Greater than L When the phase change material temperature is reduced , increase fan air volume On the contrary, improve , reduce fan air volume ; Through repeated adjustments and calculations, the adjusted thermal comfort is finally within a satisfactory range.

[0045] This embodiment determines thermal comfort evaluation results through a dual-dimensional mapping of heat load and average skin temperature, addressing the incompleteness of existing thermal comfort assessments. Based on a mapping relationship fitted with experimental data, heat load and average skin temperature are converted into thermal sensation intervals, which are then used to determine the thermal comfort level. It supports iterative parameter optimization, such as adjusting the temperature of the phase change material, to ensure that the evaluation results are more consistent with subjective perception. This overcomes the limitations of traditional single-dimensional evaluations, enabling a multi-dimensional and accurate assessment of thermal comfort, reducing R&D costs and promoting the practical application of individual thermal regulation technology.

[0046] This invention uses segmented modeling and heat transfer calculations to precisely quantify the impact of individual thermal regulation on local and global skin temperature and heat transfer, addressing the difficulty of defining thermal balance in heterogeneous environments. It is compatible with multiple regulation modes, including ventilation, radiation, and wearables, covering metabolic intensities of 1-3 meters. Through a two-dimensional thermal sensation mapping of heat load and mean skin temperature, it enables a multidimensional assessment of thermal comfort. Compared to the traditional PMV model, this approach transcends the assumption of a homogeneous environment and incorporates differences in site weights (e.g., the significant influence of the torso), improving prediction accuracy in complex scenarios. Furthermore, this approach eliminates the need for physical testing equipment; evaluation is accomplished solely through parameter setting and model calculations, significantly reducing R&D and application costs. It also supports iterative parameter optimization (e.g., adjusting phase change material temperature and air flow rate), providing a scientifically feasible technical approach for energy-saving design and comfort optimization of individual thermal regulation devices.

[0047] Example 2 This embodiment provides a thermal comfort evaluation system based on individual thermal regulation, including: The benchmark calculation module is configured to determine a human body heat dissipation target based on a human body heat balance equation according to the amount of human activity, clothing thermal resistance, and thermal environment parameters; a boundary condition generation module configured to determine heating or cooling heat transfer boundary conditions for various parts of the body based on the action form, action site, and operating parameters of the individual thermal regulation device; A dynamic heat balance calculation module is configured to calculate heat load and average skin temperature based on the human body heat dissipation target and heat transfer boundary conditions in combination with a human body segmented heat transfer model; The dual-mapping evaluation module is configured to determine a thermal comfort evaluation result based on a first mapping relationship between thermal load and thermal sensation and a second mapping relationship between average skin temperature and thermal sensation.

[0048] Example 3 This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the steps of the thermal comfort evaluation method based on individual thermal regulation as described in the first embodiment above are implemented.

[0049] Example 4 This embodiment provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps of the thermal comfort assessment method based on individual thermal regulation as described in the first embodiment above are implemented.

[0050] The steps or modules involved in Examples 2 to 4 above correspond to those in Example 1. For detailed implementations, please refer to the relevant description of Example 1. The term "computer-readable storage medium" should be understood to mean a single medium or multiple media that includes one or more instruction sets; it should also be understood to include any medium that can store, encode, or carry an instruction set for execution by a processor and cause the processor to perform any method of the present invention.

[0051] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A thermal comfort evaluation method based on individual thermal regulation, characterized in that: include: According to the human activity level, clothing thermal resistance and thermal environment parameters, the human body heat dissipation target is determined based on the human body heat balance equation; Determine the boundary conditions for heating or cooling heat transfer at various parts of the body based on the action form, action site, and working parameters of the individual thermal regulation device; Based on the human body heat dissipation target and heat transfer boundary conditions, combined with the human body segmented heat transfer model, the heat load and average skin temperature are calculated; A thermal comfort evaluation result is determined based on a first mapping relationship between thermal load and thermal sensation and a second mapping relationship between average skin temperature and thermal sensation.

2. The thermal comfort evaluation method based on individual thermal regulation according to claim 1, characterized in that: The individual thermal regulation device has the following modes of action: heating, cooling and blowing, and the action parts include exposed parts, clothed parts and worn thermal regulation parts.

3. The thermal comfort evaluation method based on individual thermal regulation according to claim 2, characterized in that: The heat transfer boundary conditions include: For exposed parts, calculating convection, radiation and evaporative heat dissipation based on the thermal environment parameters; For clothing parts, add clothing thermal resistance to correct heat transfer calculation; For thermal regulation parts of wearable devices, calculation is based on contact heat conduction and personnel activity.

4. The thermal comfort evaluation method based on individual thermal regulation according to claim 1, characterized in that: The calculation of the heat load includes: ； in, L The heat load of the human body, M is the heat produced by human metabolism, calculated based on the amount of human activity; W is the mechanical work done by the human body; Sensible heat dissipated by breathing; is the amount of latent heat dissipated during breathing; Provides convection heat transfer for local areas; Radiate heat for local areas; The heat dissipated by sweat evaporation from the local skin, in W / m 2 ; Conduct heat to the phase change cooling part; It is the ratio of the skin area of ​​a local area to the total body surface area.

5. The thermal comfort evaluation method based on individual thermal regulation according to claim 1, characterized in that: The calculation of the average skin temperature includes: the human body segmented heat transfer model divides the human body into head, neck, trunk, upper arm, forearm, hand, thigh, calf and foot segments, and calculates the average skin temperature based on the weighted skin area ratio of each segment.

6. The thermal comfort evaluation method based on individual thermal regulation according to claim 1, characterized in that: The first mapping relationship is a quantitative relationship curve between heat load and thermal sensation, and the second mapping relationship is a quantitative relationship curve between average skin temperature and thermal sensation. Both are generated by fitting experimental data and pre-stored as relationship diagrams.

7. The thermal comfort evaluation method based on individual thermal regulation according to claim 1, characterized in that: Determination of the thermal comfort evaluation result includes: Obtaining a first thermal sensation value according to the first mapping relationship; Obtaining a second thermal sensation value according to the second mapping relationship; The interval range between the first thermal sensation value and the second thermal sensation value is mapped to a thermal comfort level, and the thermal comfort level is judged as comfortable, slightly uncomfortable, or uncomfortable according to the thermal comfort level where the absolute value of the interval lies.

8. A thermal comfort evaluation system based on individual thermal regulation, characterized in that: include: The benchmark calculation module is configured to determine a human body heat dissipation target based on a human body heat balance equation according to the amount of human activity, clothing thermal resistance, and thermal environment parameters; a boundary condition generation module configured to determine heating or cooling heat transfer boundary conditions for various parts of the body based on the action form, action site, and operating parameters of the individual thermal regulation device; A dynamic heat balance calculation module is configured to calculate the heat load and average skin temperature based on the human body heat dissipation target and heat transfer boundary conditions in combination with a human body segmented heat transfer model; The dual-mapping evaluation module is configured to determine a thermal comfort evaluation result based on a first mapping relationship between thermal load and thermal sensation and a second mapping relationship between average skin temperature and thermal sensation.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the thermal comfort evaluation method based on individual thermal regulation according to any one of claims 1 to 7 are implemented.

10. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the steps of the thermal comfort evaluation method based on individual thermal regulation are implemented as described in any one of claims 1 to 7.

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