A hydrotherapy bed temperature control method and device based on water temperature coupling analysis

Abstract

The present invention relates to the field of control systems, and a method and device for controlling the temperature of a spa bed based on water temperature coupling analysis, including: constructing a heat transfer model of a spa bed scene, and using the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scene; determining the water flow rate influencing the target of the spa bed scene, analyzing the fluid conservation equation of the spa bed scene, constructing a fluid dynamics model of the spa bed scene, and simulating the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed scene; analyzing the physical parameters of the spa user, and constructing a user thermal comfort model of the spa user; using the user thermal comfort model to analyze the thermal comfort of the spa user, and calculating the comfort loss of the spa user, and based on the comfort loss, adjusting the spa bed parameters of the spa bed, obtaining the target spa bed parameters, and using the target spa bed parameters to realize intelligent temperature control of the spa bed. The present invention can realize precise control of the temperature of the spa bed to improve the spa experience of the user.

Description

Technical Field

[0001] The present invention relates to the field of control systems, and in particular to a temperature control method and device for a hydrotherapy bed based on water temperature coupling analysis. Background Art

[0002] The temperature control of the spa bed refers to the process of accurately measuring and adjusting the water temperature in the spa bed through a series of equipment and technical means. Its purpose is to ensure that during the spa process, the water temperature remains within the comfortable and safe range set by the user. Through effective temperature control, the spa bed can not only provide a more comfortable and safe treatment environment, but also improve the overall effect of the spa and meet the health needs of different users.

[0003] The traditional way to control the temperature of a spa bed is to use a simple on / off heater or thermostat, which controls the operation of the heater through a preset temperature range to keep the water temperature within the target range set by the user. This method has low temperature control accuracy and is prone to water temperature fluctuations, resulting in a poor spa experience for users. Summary of the invention

[0004] The present invention provides a temperature control method and device for a spa bed based on water temperature coupling analysis, the main purpose of which is to achieve precise control of the temperature of the spa bed to improve the spa experience of the user.

[0005] To achieve the above object, the present invention provides a temperature control method for a hydrotherapy bed based on water temperature coupling analysis, comprising:

[0006] Acquire a spa bed scene, construct a multi-point real-time system for the spa bed scene, and collect spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions, and spa bed parameters;

[0007] Determine the heat exchange mechanism of the spa bed scene, construct a heat transfer model of the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, and use the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scene;

[0008] Determine a water flow rate impact target of the spa bed scene, analyze the fluid conservation equation of the spa bed scene based on the water flow rate impact target, water physical properties and environmental conditions, construct a fluid dynamics model of the spa bed scene through the fluid conservation equation, and simulate the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed in the spa bed scene through the fluid dynamics model;

[0009] Identifying a spa user in the spa bed scene, analyzing physical parameters of the spa user, and constructing a user thermal comfort model for the spa user based on the physical parameters, water physical properties, and environmental conditions;

[0010] Based on the heat exchange state, velocity-temperature distribution relationship and physical parameters, the user thermal comfort model is used to analyze the thermal comfort of the spa user, based on the thermal comfort, the comfort loss of the spa user is calculated, based on the comfort loss, the spa bed parameters of the spa bed are adjusted to obtain target spa bed parameters, and the target spa bed parameters are used to realize intelligent temperature control of the spa bed.

[0011] Optionally, the multi-point real-time system for constructing the spa bed scene includes:

[0012] Analyzing a spa bed scene structure of the spa bed scene;

[0013] Based on the spa bed scene structure, constructing a scene geometry model of the spa bed scene;

[0014] Analyze the monitoring requirements of the spa bed scenario;

[0015] Based on the monitoring requirements, marking multiple monitoring points of the scene geometric model, and analyzing the monitoring equipment types and monitoring accuracy of the multiple monitoring points;

[0016] Based on the monitoring device type and monitoring accuracy, configure the target monitoring device of the multiple monitoring points;

[0017] Integrate the network interface corresponding to the target monitoring device into a preset real-time system to obtain an initial multi-point real-time system of the spa bed scene;

[0018] The instantaneous coefficient of the initial multi-point real-time system is calculated, and when the instantaneous coefficient meets a preset instantaneous threshold, the initial multi-point real-time system is used as a multi-point real-time system.

[0019] Optionally, constructing a heat transfer model of the hydrotherapy bed scene based on the heat exchange mechanism, water physical properties and environmental conditions includes:

[0020] Based on the heat exchange mechanism, determining heat transfer influencing factors of the spa bed scene;

[0021] Analyzing the solid area of ​​the hydrotherapy bed, the fluid temperature and the solid temperature of the hydrotherapy bed in the hydrotherapy bed scene by using the heat transfer influencing factors, water physical properties and environmental conditions;

[0022] Based on the solid area of ​​the spa bed, the fluid temperature and the solid temperature of the spa bed, the heat transfer equation of the spa bed corresponding to the spa bed scene is calculated using the following formula, wherein the heat transfer equation is:

[0023]

[0024] in, represents the heat flux density of the spa bed, represents the convective heat transfer coefficient, Represents the solid area of ​​the spa bed, represents the fluid temperature, Indicates the solid temperature of the hydrotherapy bed;

[0025] Through the heat transfer equation, a heat transfer model of the spa bed corresponding to the spa bed scene is constructed.

[0026] Optionally, simulating the heat exchange state of the spa bed corresponding to the spa bed scene using the heat transfer model includes:

[0027] Setting heat transfer boundary conditions and heat transfer initial conditions of the heat transfer model;

[0028] Discretizing the heat transfer model to obtain finite elements;

[0029] constructing an element matrix of the finite element;

[0030] Integrating the unit matrices into an overall matrix, wherein the overall matrix includes an overall stiffness matrix and an overall mass matrix;

[0031] Integrating the heat transfer boundary conditions and the heat transfer initial conditions into an overall matrix to obtain a constrained overall matrix;

[0032] Solving the constraint matrix to obtain the temperature distribution state of the internal nodes corresponding to the constraint matrix;

[0033] Based on the temperature distribution state, the heat exchange state of the spa bed corresponding to the spa bed scene is analyzed.

[0034] Optionally, the analyzing the fluid conservation equation of the hydrotherapy bed scene based on the water flow rate impact target, water physical properties and environmental conditions includes:

[0035] determining a rate analysis target of the water flow rate impact target;

[0036] Analyze the mass parameters, momentum parameters and energy parameters of the spa bed corresponding to the spa bed scenario based on the rate analysis target, water physical properties and environmental conditions;

[0037] Based on the quality parameter, the fluid quality function of the spa bed corresponding to the spa bed scene is constructed using the following formula, wherein the fluid quality function is:

[0038]

[0039] in, represents the divergence operation, represents the fluid density of the spa bed in the mass parameter, represents the derivative operation, represents the fluid velocity vector of the hydrotherapy bed in the mass parameter, represents the fluid flow time of the hydrotherapy bed in the quality parameter;

[0040] Based on the momentum parameter, the momentum change function of the fluid in the hydrotherapy bed is constructed using the following formula, wherein the momentum change function is:

[0041]

[0042] in, represents the divergence, represents the fluid density of the hydrotherapy bed, represents the derivative operation, represents the fluid velocity vector of the hydrotherapy bed, represents the fluid force on the hydrotherapy bed in momentum parameters, represents the fluid pressure of the hydrotherapy bed in the momentum parameter, represents the hydrotherapy bed fluid dynamic viscosity, Indicates the fluid flow time of the hydrotherapy bed;

[0043] Based on the energy parameter, the energy change function of the fluid in the hydrotherapy bed is constructed using the following formula, wherein the energy change function:

[0044]

[0045] in, represents the divergence, represents the fluid density of the hydrotherapy bed, represents the derivative operation, represents the fluid heat source term of the hydrotherapy bed in the energy parameters, represents the fluid velocity vector of the hydrotherapy bed, Indicates the specific constant pressure heat capacity of the fluid in the hydrotherapy bed in the energy parameter, represents the fluid temperature of the hydrotherapy bed in the energy parameter, The thermal conductivity of the fluid in the hydrotherapy bed is expressed in the energy parameter;

[0046] Based on the fluid mass function, momentum change function and energy change function, a fluid conservation equation of the spa bed corresponding to the spa bed scene is constructed.

[0047] Optionally, simulating the velocity-temperature distribution relationship of the hydrotherapy bed corresponding to the hydrotherapy bed scene by the fluid dynamics model includes:

[0048] Setting initial parameters of a mechanical model of the fluid dynamics model;

[0049] constructing a fluid velocity group of the fluid dynamics model;

[0050] Based on the fluid velocity group and the initial parameters of the mechanical model, simulating the fluid temperature group of the fluid in the hydrotherapy bed using the fluid dynamics model;

[0051] constructing a velocity-temperature curve of the fluid in the hydrotherapy bed based on the fluid velocity group and the fluid temperature group;

[0052] calculating a coefficient of determination of the velocity-temperature curve;

[0053] Determining the fitting degree of the speed-temperature curve by the determination coefficient;

[0054] When the degree of fit meets a preset degree of fit threshold, the speed-temperature distribution relationship of the hydrotherapy bed is analyzed through the speed-temperature curve.

[0055] Optionally, constructing a user thermal comfort model of the spa user based on the physical parameters, water physical properties and environmental conditions includes:

[0056] Based on the physical parameters, analyzing the body mass, skin temperature, evaporative heat dissipation and body work of the spa user;

[0057] Analyzing the fluid specific heat capacity and ambient air temperature of the spa user corresponding to the spa bed scene according to the water physical properties and environmental conditions;

[0058] The environmental energy balance function of the spa user is constructed using the following formula through the body mass, skin temperature, evaporative heat dissipation, body work, fluid specific heat capacity and ambient air temperature, wherein the environmental energy balance function is:

[0059]

[0060] in, Represents human body mass, represents the specific heat capacity of the fluid, Indicates skin temperature, represents the ambient air temperature, It represents evaporative heat dissipation. is the radiation heat transfer coefficient, represents the convective heat transfer coefficient, Indicates the fluid temperature of the hydrotherapy bed corresponding to the hydrotherapy user, represents the differential operation, It means that the human body does work;

[0061] A user thermal comfort model of the spa user is constructed by using the environmental energy balance function and a preset thermal sensation index function.

[0062] Optionally, analyzing the thermal comfort of a spa user using the user thermal comfort model based on the heat exchange state, the velocity-temperature distribution relationship and the physical parameters includes:

[0063] Constructing the model current parameters and thermal comfort boundary conditions of the user thermal comfort model;

[0064] Analyze the current convective heat transfer coefficient and the current water temperature of the spa bed corresponding to the spa user based on the current parameters of the model, the thermal comfort boundary conditions, the heat exchange state and the velocity-temperature distribution relationship;

[0065] Calculating a thermal sensation index of a spa user using the user thermal comfort model based on the physical parameters, current parameters of the model, thermal comfort boundary conditions, current convective heat transfer coefficient, and current water temperature;

[0066] The thermal comfort of the spa user is analyzed by means of the thermal sensation index.

[0067] Optionally, the calculating the comfort loss of the spa user based on the thermal comfort comprises:

[0068] identifying user characteristics of the spa user;

[0069] Based on the user characteristics, analyzing the comfort influencing factors of the spa user;

[0070] According to the comfort influencing factors, constructing a thermal comfort test environment for the spa user;

[0071] Testing the ideal thermal comfort of the spa user through the comfort testing environment;

[0072] Constructing a thermal comfort interaction system for said spa users;

[0073] Utilizing the thermal comfort interactive system to optimize the ideal thermal comfort to obtain the target thermal comfort;

[0074] Based on the thermal comfort level and the target thermal comfort level, a comfort loss of the spa user is calculated.

[0075] To achieve the above object, the present invention further provides a hydrotherapy bed temperature control device based on water temperature coupling analysis, comprising:

[0076] A spa bed data acquisition module, used for acquiring a spa bed scene, building a multi-point real-time system of the spa bed scene, and collecting spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions and spa bed parameters;

[0077] A heat transfer model building module, used to determine the heat exchange mechanism of the spa bed scene, build a heat transfer model of the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, and use the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scene;

[0078] A dynamic model building module, used to determine the water flow rate impact target of the spa bed scene, analyze the fluid conservation equation of the spa bed scene based on the water flow rate impact target, water physical properties and environmental conditions, build a fluid dynamics model of the spa bed scene through the fluid conservation equation, and simulate the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed scene through the fluid dynamics model;

[0079] A thermal comfort model building module, used for identifying a spa user in the spa bed scene, analyzing physical parameters of the spa user, and building a user thermal comfort model of the spa user based on the physical parameters, water physical properties and environmental conditions;

[0080] The intelligent temperature control module of the spa bed is used to analyze the thermal comfort of the spa user based on the heat exchange state, the velocity-temperature distribution relationship and the physical parameters by using the user thermal comfort model, calculate the comfort loss of the spa user based on the thermal comfort, adjust the spa bed parameters of the spa bed based on the comfort loss, obtain the target spa bed parameters, and realize the intelligent temperature control of the spa bed by using the target spa bed parameters.

[0081] In order to solve the above problem, the present invention further provides an electronic device, the electronic device comprising:

[0082] a memory storing at least one instruction; and

[0083] The processor executes the instructions stored in the memory to implement the above-mentioned hydrotherapy bed temperature control method based on water temperature coupling analysis.

[0084] In order to solve the above problems, the present invention also provides a computer-readable storage medium, in which at least one instruction is stored. The at least one instruction is executed by a processor in an electronic device to implement the above-mentioned spa bed temperature control method based on water temperature coupling analysis.

[0085] The present invention constructs a multi-point real-time system for the spa bed scene to realize real-time monitoring and analysis of the spa bed scene, thereby improving data reliability; the present invention constructs a heat transfer model for the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, which can simulate and analyze the heat exchange process of the spa bed to provide a basis for subsequent water bed parameter optimization; the present invention uses the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed in the spa bed scene to provide a basis for subsequent water bed temperature optimization. The present invention analyzes the fluid conservation equation of the spa bed scene based on the water flow rate affecting the target, water physical properties and environmental conditions, providing a mathematical basis for describing the fluid behavior. Furthermore, the present invention uses the fluid The speed-temperature distribution relationship of the spa bed corresponding to the dynamic model simulation spa bed scene can be used as the basis for the subsequent adjustment of spa bed parameters. The present invention constructs the user thermal comfort model of the spa user based on the physical parameters, water physical properties and environmental conditions to evaluate the user's thermal comfort with the current water temperature. Finally, based on the heat exchange state, speed-temperature distribution relationship and physical parameters, the present invention uses the user thermal comfort model to analyze the thermal comfort of the spa user to determine whether the user is in a comfortable state, providing a basis for the subsequent optimization of spa bed parameters. Based on the comfort loss, the present invention adjusts the spa bed parameters of the spa bed to achieve thermal comfort that better meets user needs and expectations. Therefore, the present invention can achieve precise control of the spa bed temperature to improve the user's spa experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] Figure 1 A schematic flow chart of a hydrotherapy bed temperature control method based on water temperature coupling analysis provided in one embodiment of the present invention;

[0087] Figure 2 A functional module diagram of a hydrotherapy bed temperature control device based on water temperature coupling analysis provided by an embodiment of the present invention;

[0088] Figure 3 A schematic diagram of the structure of an electronic device for implementing the hydrotherapy bed temperature control method based on water temperature coupling analysis provided in one embodiment of the present invention.

[0089] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0090] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0091] The embodiment of the present application provides a temperature control method for a spa bed based on water temperature coupling analysis. The execution subject of the temperature control method for a spa bed based on water temperature coupling analysis includes but is not limited to at least one of the electronic devices such as a server and a terminal that can be configured to execute the method provided in the embodiment of the present application. In other words, the temperature control method for a spa bed based on water temperature coupling analysis can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, etc.

[0092] Reference Figure 1 FIG. 1 is a flow chart of a method for controlling the temperature of a hydrotherapy bed based on water temperature coupling analysis according to an embodiment of the present invention. In this embodiment, the method for controlling the temperature of a hydrotherapy bed based on water temperature coupling analysis includes:

[0093] S1. Acquire a spa bed scene, construct a multi-point real-time system for the spa bed scene, and collect spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions and spa bed parameters.

[0094] It should be explained that the spa bed scene refers to the actual spa bed environment, including the structure, size, material, application scenario, etc. of the spa bed. The multi-point real-time system is a system capable of real-time monitoring and analysis of the spa bed scene, which includes multiple sensors and data acquisition equipment.

[0095] The present invention constructs a multi-point real-time system for the spa bed scene to realize real-time monitoring and analysis of the spa bed scene, thereby improving the reliability of data.

[0096] In detail, the multi-point real-time system for constructing the spa bed scene includes:

[0097] Analyzing a spa bed scene structure of the spa bed scene;

[0098] Based on the spa bed scene structure, constructing a scene geometry model of the spa bed scene;

[0099] Analyze the monitoring requirements of the spa bed scenario;

[0100] Based on the monitoring requirements, marking multiple monitoring points of the scene geometric model, and analyzing the monitoring equipment types and monitoring accuracy of the multiple monitoring points;

[0101] Based on the monitoring device type and monitoring accuracy, configure the target monitoring device of the multiple monitoring points;

[0102] Integrate the network interface corresponding to the target monitoring device into a preset real-time system to obtain an initial multi-point real-time system of the spa bed scene;

[0103] The instantaneous coefficient of the initial multi-point real-time system is calculated, and when the instantaneous coefficient meets a preset instantaneous threshold, the initial multi-point real-time system is used as a multi-point real-time system.

[0104] Among them, the spa bed scene structure refers to the actual physical layout and design of the spa bed scene, including the size, shape, material, room volume and other structures of the spa bed; the scene geometry model refers to the model structure used to simulate and analyze the spa bed scene; the monitoring requirements refer to the key parameters and indicators that need to be monitored, such as water temperature, water flow rate, ambient temperature, etc.; the monitoring device type refers to the type of sensor used to monitor the physical quantity, such as temperature sensor, flow meter, etc.; the monitoring accuracy refers to the accuracy requirement of each monitoring point determined according to the monitoring requirements, such as the accuracy level of temperature measurement; the target monitoring device refers to the sensor and measuring device that is suitable for the type and accuracy of the monitoring device; the network interface The interface refers to the network interface that the target monitoring device needs to have, such as Ethernet interface, Wi-Fi interface, etc., so as to transmit data to the real-time system. The real-time system refers to a system that can collect data in real time. The initial multi-point real-time system refers to the initial system built based on the above components. The instant coefficient refers to an indicator to measure the real-time performance of the system, which reflects the speed and efficiency of the system's response to events or changes. The instant threshold refers to the preset instant coefficient standard, which is used to determine whether the system meets the real-time requirements. The multi-point real-time system means that when the instant coefficient meets the instant threshold, the initial multi-point real-time system is confirmed as the final multi-point real-time system for real-time monitoring of the spa bed.

[0105] The present invention collects the spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions, water geometric parameters, and spa bed parameters. It should be explained that the water physical properties refer to the description of the physical characteristics of water, including data such as the specific heat capacity, thermal conductivity, density, and viscosity of water; the environmental conditions refer to the description of the environmental state around the spa bed, including data such as air temperature, humidity, wind speed, and radiation temperature; the water geometric parameters refer to the description of the shape and size of the spa bed, including the volume, surface area, shape and size of the water flow channel, etc. of the spa bed, which parameters will affect the speed of the water flow and heat transfer; the spa bed parameters refer to the description of the design and operation parameters of the spa bed, including the design of the heating and cooling system of the spa bed, the control parameters of the spa bed (such as water temperature setting, water flow speed, etc.), the user interface and operation method of the spa bed, and other data.

[0106] S2. Determine the heat exchange mechanism of the spa bed scene, construct a heat transfer model of the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, and use the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scene.

[0107] It should be explained that the heat exchange mechanism of the spa bed scene refers to the fact that the spa bed is usually equipped with a circulating water system. The heated water circulates in the bed through a circulating pump, and the flow of water drives the heat to the bed surface. When it comes into contact with the human body, the heat is transferred to the human body by convection.

[0108] The present invention constructs a heat transfer model of the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, which can simulate and analyze the heat exchange process of the spa bed and provide a basis for subsequent optimization of water bed parameters.

[0109] In detail, the heat transfer model of the hydrotherapy bed scene is constructed based on the heat exchange mechanism, water physical properties and environmental conditions, including:

[0110] Based on the heat exchange mechanism, determining heat transfer influencing factors of the spa bed scene;

[0111] Analyzing the solid area of ​​the hydrotherapy bed, the fluid temperature and the solid temperature of the hydrotherapy bed in the hydrotherapy bed scene by using the heat transfer influencing factors, water physical properties and environmental conditions;

[0112] Based on the solid area of ​​the spa bed, the fluid temperature and the solid temperature of the spa bed, the heat transfer equation of the spa bed corresponding to the spa bed scene is calculated using the following formula, wherein the heat transfer equation is:

[0113]

[0114] in, represents the heat flux density of the spa bed, represents the convective heat transfer coefficient, Represents the solid area of ​​the spa bed, represents the fluid temperature, Indicates the solid temperature of the hydrotherapy bed;

[0115] Through the heat transfer equation, a heat transfer model of the spa bed corresponding to the spa bed scene is constructed.

[0116] Among them, the factors affecting heat transfer include the structural design of the spa bed, the physical properties of the materials, the flow state of the fluid and the environmental conditions. The convection heat transfer coefficient refers to a physical quantity used to describe the heat transfer efficiency between the fluid and the solid surface. The solid area of ​​the spa bed refers to the surface area of ​​the spa bed in contact with the fluid (usually water). The fluid temperature refers to the temperature of the fluid (water). The solid temperature of the spa bed is the temperature of the spa bed surface. The heat flux density refers to the amount of heat transferred through a unit area per unit time. The heat transfer equation refers to a mathematical expression used to describe how heat is transferred from one object or system to another object or system during the heat transfer process. The heat transfer model refers to a mathematical model used to describe and predict the internal and external heat transfer processes of an object or system.

[0117] The present invention utilizes the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scene as a basis for optimizing and improving the water bed temperature in the later stage.

[0118] In detail, the heat transfer model is used to simulate the heat exchange state of the spa bed corresponding to the spa bed scene, including:

[0119] Setting heat transfer boundary conditions and heat transfer initial conditions of the heat transfer model;

[0120] Discretizing the heat transfer model to obtain finite elements;

[0121] constructing an element matrix of the finite element;

[0122] Integrating the unit matrices into an overall matrix, wherein the overall matrix includes an overall stiffness matrix and an overall mass matrix;

[0123] Integrating the heat transfer boundary conditions and the heat transfer initial conditions into an overall matrix to obtain a constrained overall matrix;

[0124] Solving the constraint matrix to obtain the temperature distribution state of the internal nodes corresponding to the constraint matrix;

[0125] Based on the temperature distribution state, the heat exchange state of the spa bed corresponding to the spa bed scene is analyzed.

[0126] Among them, the heat transfer boundary conditions refer to the constraints imposed on the boundaries of the heat transfer model, such as fixed temperature, heat flux density, convection heat transfer coefficient and other conditions; the heat transfer initial conditions refer to the constraints imposed at the initial moment of the heat transfer model, such as the initial temperature distribution; the finite element refers to a continuous geometric body divided into a finite number of elements, each element consisting of nodes, which is used to simulate the heat transfer process; the element matrix refers to a matrix containing the element stiffness matrix and the mass matrix for each finite element, which is used to describe the heat transfer behavior within the element; the overall stiffness matrix refers to combining the stiffness matrices of all elements into a large matrix, which represents the interaction between all elements in the entire model; the overall mass matrix It refers to combining the mass matrices of all units into a large matrix, which represents the mass of all units in the entire model. The constrained overall matrix refers to integrating the heat transfer boundary conditions and initial conditions into the overall stiffness matrix and the overall mass matrix to form a matrix with constraints. The internal nodes refer to the nodes inside each finite unit in the heat transfer model, which are the calculation points for solving the temperature distribution. The temperature distribution state refers to the temperature distribution of each internal node obtained by solving the constrained overall matrix, which reflects the temperature distribution of the entire heat transfer model. The heat exchange state refers to analyzing the state of heat exchange of the spa bed corresponding to the spa bed scene based on the temperature distribution state, including heat flux density, temperature gradient, etc., which is used to evaluate heat transfer efficiency and thermal comfort.

[0127] Furthermore, the discretization of the heat transfer model to obtain finite elements can be achieved through the finite element method.

[0128] Furthermore, the constraint overall matrix may be solved by using a solver such as MATLAB, Python, etc.

[0129] S3. Determine the water flow rate influencing target of the spa bed scene, analyze the fluid conservation equation of the spa bed scene based on the water flow rate influencing target, water physical properties and environmental conditions, construct a fluid dynamics model of the spa bed scene through the fluid conservation equation, and simulate the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed in the spa bed scene through the fluid dynamics model.

[0130] It should be explained that the water flow rate influencing target refers to a target affected by different flow rates of water in the hydrotherapy bed, such as temperature.

[0131] The present invention provides a mathematical basis for describing fluid behavior by analyzing the fluid conservation equation of the hydrotherapy bed scene based on the water flow rate affecting the target, water physical properties and environmental conditions.

[0132] In detail, the fluid conservation equation of the hydrotherapy bed scene is analyzed based on the water flow rate impact target, water physical properties and environmental conditions, including:

[0133] determining a rate analysis target of the water flow rate impact target;

[0134] Analyze the mass parameters, momentum parameters and energy parameters of the spa bed corresponding to the spa bed scenario based on the rate analysis target, water physical properties and environmental conditions;

[0135] Based on the quality parameter, the fluid quality function of the spa bed corresponding to the spa bed scene is constructed using the following formula, wherein the fluid quality function is:

[0136]

[0137] in, represents the divergence operation, represents the fluid density of the spa bed in the mass parameter, represents the derivative operation, represents the fluid velocity vector of the hydrotherapy bed in the mass parameter, represents the fluid flow time of the hydrotherapy bed in the quality parameter;

[0138] Based on the momentum parameter, the momentum change function of the fluid in the hydrotherapy bed is constructed using the following formula, wherein the momentum change function is:

[0139]

[0140] in, represents the divergence, represents the fluid density of the hydrotherapy bed, represents the derivative operation, represents the fluid velocity vector of the hydrotherapy bed, represents the fluid force on the hydrotherapy bed in momentum parameters, represents the fluid pressure of the hydrotherapy bed in the momentum parameter, represents the hydrotherapy bed fluid dynamic viscosity, Indicates the fluid flow time of the hydrotherapy bed;

[0141] Based on the energy parameter, the energy change function of the fluid in the hydrotherapy bed is constructed using the following formula, wherein the energy change function:

[0142]

[0143] in, represents the divergence, represents the fluid density of the hydrotherapy bed, represents the derivative operation, represents the fluid heat source term of the hydrotherapy bed in the energy parameters, represents the fluid velocity vector of the hydrotherapy bed, Indicates the specific constant pressure heat capacity of the fluid in the hydrotherapy bed in the energy parameter, represents the fluid temperature of the hydrotherapy bed in the energy parameter, The thermal conductivity of the fluid in the hydrotherapy bed is expressed in the energy parameter;

[0144] Based on the fluid mass function, momentum change function and energy change function, a fluid conservation equation of the spa bed corresponding to the spa bed scene is constructed.

[0145] Among them, the rate analysis target refers to the target of controlling water flow optimization, such as improving thermal comfort, reducing energy consumption and other targets, the fluid density refers to the mass of fluid per unit volume, the divergence operation, the fluid velocity vector refers to the description of the direction and speed of fluid movement in space, the fluid mass function refers to the function that ensures the conservation of mass in the fluid system, the momentum change function refers to the function that describes the change of fluid momentum, the fluid force refers to the external force acting on the fluid, the fluid pressure refers to the force per unit area of ​​the fluid, the fluid dynamic viscosity refers to the measure of the internal friction of the fluid, the energy change function refers to the function that describes the change of fluid energy, the fluid heat source term refers to the heat source acting on the fluid, the fluid specific heat capacity at constant pressure refers to the heat absorbed or released by unit mass of the fluid under constant pressure, and the fluid thermal conductivity refers to the efficiency of heat transfer inside the fluid.

[0146] It should be explained that the fluid dynamics model refers to a model that describes the effect of the water flow velocity of the hydrotherapy bed on the temperature.

[0147] The present invention simulates the velocity-temperature distribution relationship of the hydrotherapy bed corresponding to the hydrotherapy bed scene through the fluid dynamics model, which can be used as a basis for adjusting the parameters of the hydrotherapy bed in the later stage.

[0148] In detail, the simulation of the velocity-temperature distribution relationship of the hydrotherapy bed corresponding to the hydrotherapy bed scene by the fluid dynamics model includes:

[0149] Setting initial parameters of a mechanical model of the fluid dynamics model;

[0150] constructing a fluid velocity group of the fluid dynamics model;

[0151] Based on the fluid velocity group and the initial parameters of the mechanical model, simulating the fluid temperature group of the fluid in the hydrotherapy bed using the fluid dynamics model;

[0152] constructing a velocity-temperature curve of the fluid in the hydrotherapy bed based on the fluid velocity group and the fluid temperature group;

[0153] calculating a coefficient of determination of the velocity-temperature curve;

[0154] Determining the fitting degree of the speed-temperature curve by the determination coefficient;

[0155] When the degree of fit meets a preset degree of fit threshold, the speed-temperature distribution relationship of the hydrotherapy bed is analyzed through the speed-temperature curve.

[0156] Among them, the initial parameters of the mechanical model refer to the initial conditions set in the fluid dynamics model, such as fluid density, initial velocity distribution, initial temperature distribution, etc. The fluid velocity group refers to the velocity distribution of the fluid in the spa bed simulated by the set fluid dynamics model. The fluid temperature group refers to the fluid temperature distribution obtained by the fluid dynamics model through the fluid velocity group. The velocity-temperature curve refers to a curve constructed based on the fluid velocity group and the fluid temperature group, which shows the temperature distribution at different speeds. The determination coefficient refers to an indicator used in statistics to measure the goodness of fit of a model, and its value is between 0 and 1. The closer it is to 1, the better the model fit. The fit refers to the degree of match between the velocity-temperature curve and the actual data, which determines the accuracy and reliability of the model. The fit threshold refers to a preset fit standard, which is used to judge whether the fit of the velocity-temperature curve meets the requirements. The velocity-temperature distribution relationship refers to the relationship between the velocity and temperature of the fluid in the spa bed obtained by analyzing the velocity-temperature curve.

[0157] Furthermore, the calculation of the determination coefficient of the speed-temperature curve may be achieved by statistical analysis technology.

[0158] S4. Identify the spa user in the spa bed scene, analyze the physical parameters of the spa user, and construct a user thermal comfort model for the spa user based on the physical parameters, water physical properties and environmental conditions.

[0159] It should be explained that the spa user refers to a person who uses a spa bed for spa treatment, and the physical parameters refer to parameters related to the physiological and physical characteristics of the spa user, such as weight, height, gender, skin properties and the like.

[0160] The present invention constructs a user thermal comfort model of the spa user based on the physical parameters, water physical properties and environmental conditions to evaluate the user's thermal comfort with the current water temperature.

[0161] In detail, the step of constructing a user thermal comfort model of the spa user based on the physical parameters, water physical properties and environmental conditions includes:

[0162] Based on the physical parameters, analyzing the body mass, skin temperature, evaporative heat dissipation and body work of the spa user;

[0163] Analyzing the fluid specific heat capacity and ambient air temperature of the spa user corresponding to the spa bed scene according to the water physical properties and environmental conditions;

[0164] The environmental energy balance function of the spa user is constructed using the following formula through the body mass, skin temperature, evaporative heat dissipation, body work, fluid specific heat capacity and ambient air temperature, wherein the environmental energy balance function is:

[0165]

[0166] in, Represents human body mass, represents the specific heat capacity of the fluid, Indicates skin temperature, represents the ambient air temperature, It represents evaporative heat dissipation. is the radiation heat transfer coefficient, represents the convective heat transfer coefficient, Indicates the fluid temperature of the hydrotherapy bed corresponding to the hydrotherapy user, represents the differential operation, It means that the human body does work;

[0167] A user thermal comfort model of the spa user is constructed by using the environmental energy balance function and a preset thermal sensation index function.

[0168] Among them, the human body mass refers to the weight of the spa user, the skin temperature refers to the temperature of the spa user's skin, the evaporative heat dissipation refers to the heat lost by the spa user through skin evaporation, the human body work refers to the heat generated by the spa user during the activity, the fluid specific heat capacity refers to the specific heat capacity of the fluid in the spa bed, and the unit is joule per kilogram·Kelvin (J / kg·K), the ambient air temperature is the air temperature of the environment where the spa bed is located, and the unit is Kelvin (K), the radiation heat transfer coefficient refers to the radiation heat transfer coefficient between the spa user and the surrounding environment, and the unit is watt per square meter·Kelvin (W / m²·K), the environmental energy balance function refers to a function that describes the energy conversion between the spa environment and the spa user, the thermal sensation index function refers to a function used to evaluate and predict the user's perception of the ambient temperature, and the user thermal comfort model refers to a model for analyzing the thermal comfort of spa users under different conditions.

[0169] S5. Based on the heat exchange state, velocity-temperature distribution relationship and physical parameters, the thermal comfort of the spa user is analyzed using the user thermal comfort model. Based on the thermal comfort, the comfort loss of the spa user is calculated. Based on the comfort loss, the spa bed parameters of the spa bed are adjusted to obtain target spa bed parameters. The target spa bed parameters are used to achieve intelligent temperature control of the spa bed.

[0170] Based on the heat exchange state, velocity-temperature distribution relationship and physical parameters, the present invention uses the user thermal comfort model to analyze the thermal comfort of the spa user to determine whether the user is in a comfortable state, providing a basis for the subsequent optimization of spa bed parameters.

[0171] In detail, the method of analyzing the thermal comfort of a spa user using the user thermal comfort model based on the heat exchange state, the velocity-temperature distribution relationship and the physical parameters includes:

[0172] Constructing the model current parameters and thermal comfort boundary conditions of the user thermal comfort model;

[0173] Analyze the current convective heat transfer coefficient and the current water temperature of the spa bed corresponding to the spa user based on the current parameters of the model, the thermal comfort boundary conditions, the heat exchange state and the velocity-temperature distribution relationship;

[0174] Calculating a thermal sensation index of a spa user using the user thermal comfort model based on the physical parameters, current parameters of the model, thermal comfort boundary conditions, current convective heat transfer coefficient, and current water temperature;

[0175] The thermal comfort of the spa user is analyzed by means of the thermal sensation index.

[0176] Among them, the current parameters of the model refer to the current parameters used to construct the thermal comfort model, including ambient temperature, relative humidity, and wind speed. The thermal comfort boundary conditions refer to the boundary conditions for setting the thermal comfort model, such as the maximum and minimum allowable thermal sensation index ranges. The current convective heat transfer coefficient refers to the convective heat transfer coefficient between the spa user and the surface of the spa bed. The current water temperature refers to the current temperature of the fluid in the spa bed. The thermal sensation index refers to the user's subjective feeling of the ambient temperature. The value range of the thermal sensation index is from -3 (very cold) to +3 (very hot), and the middle value of 0 indicates a neutral feeling. The thermal comfort refers to the user's comprehensive evaluation of the thermal sensation and comfort of the environment.

[0177] Furthermore, the thermal comfort of the spa user can be analyzed by using the thermal sensation index. The closer the value of the thermal sensation index is to 0, the higher the thermal comfort of the user.

[0178] It should be explained that the comfort loss refers to the difference between the thermal comfort of the spa user and the target thermal comfort.

[0179] In detail, the step of calculating the comfort loss of the spa user based on the thermal comfort level includes:

[0180] identifying user characteristics of the spa user;

[0181] Based on the user characteristics, analyzing the comfort influencing factors of the spa user;

[0182] According to the comfort influencing factors, constructing a thermal comfort test environment for the spa user;

[0183] Testing the ideal thermal comfort of the spa user through the comfort testing environment;

[0184] Constructing a thermal comfort interaction system for said spa users;

[0185] Utilizing the thermal comfort interactive system to optimize the ideal thermal comfort to obtain the target thermal comfort;

[0186] Based on the thermal comfort level and the target thermal comfort level, a comfort loss of the spa user is calculated.

[0187] Among them, the user characteristics refer to individual attributes that affect the user's thermal comfort, such as age, gender, weight, health status, skin type, activity level, etc. The comfort influencing factors refer to environmental factors that affect the user's thermal comfort, such as the water temperature, water flow rate, ambient temperature, humidity, wind speed, etc. of the spa bed. The thermal comfort test environment refers to an environment constructed to test the ideal thermal comfort of spa users, including the design parameters and environmental conditions of the spa bed. The ideal thermal comfort refers to the optimal thermal comfort level perceived by spa users in the test environment. The thermal comfort interaction system refers to a system that allows users to interact with the thermal comfort settings of the spa bed. The target thermal comfort refers to the optimized optimal thermal comfort level.

[0188] Furthermore, the construction of the thermal comfort interaction system for the spa users can be implemented through technologies such as HTML, JS and interaction engine.

[0189] Based on the comfort loss, the present invention adjusts the spa bed parameters of the spa bed to achieve thermal comfort that better meets the needs and expectations of the user. In detail, the spa bed parameters refer to various parameters that need to be considered and adjusted in the design and operation of the spa bed, such as initial water temperature, water flow rate, ambient temperature and other parameters.

[0190] The present invention constructs a multi-point real-time system for the spa bed scene to realize real-time monitoring and analysis of the spa bed scene, thereby improving data reliability; the present invention constructs a heat transfer model for the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, which can simulate and analyze the heat exchange process of the spa bed to provide a basis for subsequent water bed parameter optimization; the present invention uses the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed in the spa bed scene to provide a basis for subsequent water bed temperature optimization. The present invention analyzes the fluid conservation equation of the spa bed scene based on the water flow rate affecting the target, water physical properties and environmental conditions, providing a mathematical basis for describing the fluid behavior. Furthermore, the present invention uses the fluid The speed-temperature distribution relationship of the spa bed corresponding to the dynamic model simulation spa bed scene can be used as the basis for the subsequent adjustment of spa bed parameters. The present invention constructs the user thermal comfort model of the spa user based on the physical parameters, water physical properties and environmental conditions to evaluate the user's thermal comfort with the current water temperature. Finally, based on the heat exchange state, speed-temperature distribution relationship and physical parameters, the present invention uses the user thermal comfort model to analyze the thermal comfort of the spa user to determine whether the user is in a comfortable state, providing a basis for the subsequent optimization of spa bed parameters. Based on the comfort loss, the present invention adjusts the spa bed parameters of the spa bed to achieve thermal comfort that better meets user needs and expectations. Therefore, the present invention can achieve precise control of the spa bed temperature to improve the user's spa experience.

[0191] like Figure 2 , which is a functional module diagram of a hydrotherapy bed temperature control device based on water temperature coupling analysis provided by an embodiment of the present invention.

[0192] The spa bed temperature control device 100 based on water temperature coupling analysis of the present invention can be installed in an electronic device. According to the functions to be implemented, the spa bed temperature control device 100 based on water temperature coupling analysis can include a spa bed data acquisition module 101, a heat transfer model construction module 102, a dynamic model construction module 103, a thermal comfort model construction module 104 and a spa bed intelligent temperature control module 105. The module of the present invention can also be called a unit, which refers to a series of computer program segments that can be executed by an electronic device processor and can complete fixed functions, which are stored in the memory of the electronic device.

[0193] The spa bed data acquisition module 101 is used to acquire a spa bed scene, build a multi-point real-time system for the spa bed scene, and collect spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions and spa bed parameters;

[0194] The heat transfer model building module 102 is used to determine the heat exchange mechanism of the spa bed scene, build a heat transfer model of the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, and use the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scene;

[0195] The dynamic model building module 103 is used to determine the water flow rate impact target of the spa bed scene, analyze the fluid conservation equation of the spa bed scene based on the water flow rate impact target, water physical properties and environmental conditions, build a fluid dynamics model of the spa bed scene through the fluid conservation equation, and simulate the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed scene through the fluid dynamics model;

[0196] The thermal comfort model building module 104 is used to identify the spa user in the spa bed scene, analyze the physical parameters of the spa user, and build a user thermal comfort model of the spa user based on the physical parameters, water physical properties and environmental conditions;

[0197] The spa bed intelligent temperature control module 105 is used to analyze the thermal comfort of the spa user based on the heat exchange state, speed-temperature distribution relationship and physical parameters using the user thermal comfort model, calculate the comfort loss of the spa user based on the thermal comfort, adjust the spa bed parameters of the spa bed based on the comfort loss, obtain target spa bed parameters, and use the target spa bed parameters to achieve intelligent temperature control of the spa bed.

[0198] In detail, each module in the hydrotherapy bed temperature control device 100 based on water temperature coupling analysis in the embodiment of the present invention is used in the same manner as above. Figure 1 The same technical means as the spa bed temperature control method based on water temperature coupling analysis described in the text can produce the same technical effects, so I will not go into details here.

[0199] like Figure 3 , which is a schematic diagram of the structure of an electronic device for implementing a temperature control method for a hydrotherapy bed based on water temperature coupling analysis provided by an embodiment of the present invention.

[0200] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and executable on the processor 10, such as a hydrotherapy bed temperature control method program based on water temperature coupling analysis.

[0201] The memory 11 includes at least one type of readable storage medium, including flash memory, mobile hard disk, multimedia card, card-type memory (e.g., SD or DX memory, etc.), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 11 may be an internal storage unit of the electronic device 1, such as a mobile hard disk of the electronic device 1. In other embodiments, the memory 11 may also be an external storage device of the electronic device 1, such as a plug-in mobile hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card, etc. equipped on the electronic device 1. Further, the memory 11 also includes an internal storage unit of the electronic device 1 and an external storage device. The memory 11 can not only be used to store application software and various data installed in the electronic device 1, such as the code of the hydrotherapy bed temperature control method program based on water temperature coupling analysis, but also be used to temporarily store data that has been output or is to be output.

[0202] In some embodiments, the processor 10 may be composed of an integrated circuit, for example, a single packaged integrated circuit, or a plurality of packaged integrated circuits with the same or different functions, including one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and combinations of various control chips, etc. The processor 10 is the control core (Control Unit) of the electronic device, and uses various interfaces and lines to connect various components of the entire electronic device, and executes or executes programs or modules stored in the memory 11 (such as a hydrotherapy bed temperature control method program based on water temperature coupling analysis, etc.), and calls data stored in the memory 11, so as to execute various functions of the electronic device 1 and process data.

[0203] The bus 12 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 may be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize connection and communication between the memory 11 and at least one processor 10, etc.

[0204] Figure 3 Only an electronic device with components is shown, and those skilled in the art will understand that Figure 3The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0205] For example, although not shown, the electronic device 1 may also include a power source (such as a battery) for supplying power to various components. Preferably, the power source may be logically connected to the at least one processor 10 through a power management device, so that the power management device can realize functions such as charging management, discharging management, and power consumption management. The power source may also include one or more DC or AC power sources, recharging devices, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include a variety of sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be repeated here.

[0206] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is generally used to establish a communication connection between the electronic device 1 and other electronic devices.

[0207] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), or a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the electronic device 1 and to display a visual user interface.

[0208] It should be understood that the embodiment is for illustration only and the scope of the patent application is not limited to this structure.

[0209] The hydrotherapy bed temperature control method program based on water temperature coupling analysis stored in the memory 11 of the electronic device 1 is a combination of multiple instructions. When running in the processor 10, it can achieve:

[0210] Acquire a spa bed scene, construct a multi-point real-time system for the spa bed scene, and collect spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions, and spa bed parameters;

[0211] Determine the heat exchange mechanism of the spa bed scene, construct a heat transfer model of the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, and use the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scene;

[0212] Determine a water flow rate impact target of the spa bed scene, analyze the fluid conservation equation of the spa bed scene based on the water flow rate impact target, water physical properties and environmental conditions, construct a fluid dynamics model of the spa bed scene through the fluid conservation equation, and simulate the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed in the spa bed scene through the fluid dynamics model;

[0213] Identifying a spa user in the spa bed scene, analyzing physical parameters of the spa user, and constructing a user thermal comfort model for the spa user based on the physical parameters, water physical properties, and environmental conditions;

[0214] Based on the heat exchange state, velocity-temperature distribution relationship and physical parameters, the user thermal comfort model is used to analyze the thermal comfort of the spa user, based on the thermal comfort, the comfort loss of the spa user is calculated, based on the comfort loss, the spa bed parameters of the spa bed are adjusted to obtain target spa bed parameters, and the target spa bed parameters are used to realize intelligent temperature control of the spa bed.

[0215] Furthermore, if the module / unit integrated in the electronic device 1 is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium can include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, and a read-only memory (ROM).

[0216] The present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor of an electronic device, the computer program can implement:

[0217] Acquire a spa bed scene, construct a multi-point real-time system for the spa bed scene, and collect spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions, and spa bed parameters;

[0218] Determine the heat exchange mechanism of the spa bed scene, construct a heat transfer model of the spa bed scene based on the heat exchange mechanism, water physical properties and environmental conditions, and use the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scene;

[0219] Determine a water flow rate impact target of the spa bed scene, analyze the fluid conservation equation of the spa bed scene based on the water flow rate impact target, water physical properties and environmental conditions, construct a fluid dynamics model of the spa bed scene through the fluid conservation equation, and simulate the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed in the spa bed scene through the fluid dynamics model;

[0220] Identifying a spa user in the spa bed scene, analyzing physical parameters of the spa user, and constructing a user thermal comfort model for the spa user based on the physical parameters, water physical properties, and environmental conditions;

[0221] Based on the heat exchange state, velocity-temperature distribution relationship and physical parameters, the user thermal comfort model is used to analyze the thermal comfort of the spa user, based on the thermal comfort, the comfort loss of the spa user is calculated, based on the comfort loss, the spa bed parameters of the spa bed are adjusted to obtain target spa bed parameters, and the target spa bed parameters are used to realize intelligent temperature control of the spa bed.

[0222] In the several embodiments provided by the present invention, it should be understood that the disclosed devices, systems and methods can be implemented in other ways. For example, the system embodiments described above are only illustrative, and actual implementation may have other division methods.

[0223] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0224] In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional modules.

[0225] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0226] In addition, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the system claim can also be implemented by one unit or device through software or hardware. The second and other words are used to indicate names, but not to indicate any particular order.

[0227] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A temperature control method for a hydrotherapy bed based on water temperature coupling analysis, characterized in that: The method comprises: Acquire a spa bed scene, construct a multi-point real-time system for the spa bed scene, and collect spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions, and spa bed parameters; Determine the heat exchange mechanism of the spa bed scene, determine the heat transfer influencing factors of the spa bed scene based on the heat exchange mechanism, analyze the spa bed solid area, fluid temperature and spa bed solid temperature of the spa bed scene through the heat transfer influencing factors, water physical properties and environmental conditions, and calculate the heat transfer equation of the spa bed corresponding to the spa bed scene based on the spa bed solid area, fluid temperature and spa bed solid temperature using the following formula, wherein the heat transfer equation is: in, represents the heat flux density of the spa bed, represents the convective heat transfer coefficient, Represents the solid area of ​​the spa bed, represents the fluid temperature, represents the solid temperature of the spa bed, constructs a heat transfer model of the spa bed corresponding to the spa bed scenario through the heat transfer equation, and uses the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scenario; Determine a water flow rate impact target of the spa bed scene, determine a rate analysis target of the water flow rate impact target, analyze the mass parameter, momentum parameter and energy parameter of the spa bed corresponding to the spa bed scene based on the rate analysis target, water physical properties and environmental conditions, and construct a fluid mass function of the spa bed corresponding to the spa bed scene based on the mass parameters using the following formula, wherein the fluid mass function is: in, represents the divergence operation, represents the fluid density of the spa bed in the mass parameter, represents the derivative operation, represents the fluid velocity vector of the hydrotherapy bed in the mass parameter, The mass parameter represents the fluid flow time of the spa bed. Based on the momentum parameter, the momentum change function of the fluid in the spa bed is constructed using the following formula, wherein the momentum change function is: in, represents the divergence, represents the fluid density of the hydrotherapy bed, represents the derivative operation, represents the fluid velocity vector of the hydrotherapy bed, represents the fluid force on the hydrotherapy bed in momentum parameters, represents the fluid pressure of the hydrotherapy bed in the momentum parameter, represents the hydrotherapy bed fluid dynamic viscosity, represents the fluid flow time of the hydrotherapy bed. Based on the energy parameter, the energy change function of the fluid in the hydrotherapy bed is constructed using the following formula, wherein the energy change function is: in, represents the divergence, represents the fluid density of the hydrotherapy bed, represents the derivative operation, represents the fluid heat source term of the hydrotherapy bed in the energy parameters, represents the fluid velocity vector of the hydrotherapy bed, Indicates the specific constant pressure heat capacity of the fluid in the hydrotherapy bed in the energy parameter, represents the fluid temperature of the hydrotherapy bed in the energy parameter, Representing the fluid thermal conductivity of the spa bed in the energy parameter, constructing the fluid conservation equation of the spa bed corresponding to the spa bed scene based on the fluid mass function, momentum change function and energy change function, constructing the fluid dynamics model of the spa bed scene through the fluid conservation equation, and simulating the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed scene through the fluid dynamics model; Identifying a spa user in the spa bed scene, analyzing physical parameters of the spa user, and constructing a user thermal comfort model for the spa user based on the physical parameters, water physical properties, and environmental conditions; Based on the heat exchange state, velocity-temperature distribution relationship and physical parameters, the user thermal comfort model is used to analyze the thermal comfort of the spa user, based on the thermal comfort, the comfort loss of the spa user is calculated, based on the comfort loss, the spa bed parameters of the spa bed are adjusted to obtain target spa bed parameters, and the target spa bed parameters are used to realize intelligent temperature control of the spa bed.

2. The hydrotherapy bed temperature control method based on water temperature coupling analysis according to claim 1, characterized in that: The multi-point real-time system for constructing the spa bed scene includes: Analyzing a spa bed scene structure of the spa bed scene; Based on the spa bed scene structure, constructing a scene geometry model of the spa bed scene; Analyze the monitoring requirements of the spa bed scenario; Based on the monitoring requirements, marking multiple monitoring points of the scene geometric model, and analyzing the monitoring equipment types and monitoring accuracy of the multiple monitoring points; Based on the monitoring device type and monitoring accuracy, configure the target monitoring device of the multiple monitoring points; Integrate the network interface corresponding to the target monitoring device into a preset real-time system to obtain an initial multi-point real-time system of the spa bed scene; The instantaneous coefficient of the initial multi-point real-time system is calculated, and when the instantaneous coefficient meets a preset instantaneous threshold, the initial multi-point real-time system is used as a multi-point real-time system.

3. The hydrotherapy bed temperature control method based on water temperature coupling analysis according to claim 2, characterized in that: The method of simulating the heat exchange state of the spa bed corresponding to the spa bed scene by using the heat transfer model includes: Setting heat transfer boundary conditions and heat transfer initial conditions of the heat transfer model; Discretizing the heat transfer model to obtain finite elements; constructing an element matrix of the finite element; Integrating the unit matrices into an overall matrix, wherein the overall matrix includes an overall stiffness matrix and an overall mass matrix; Integrating the heat transfer boundary conditions and the heat transfer initial conditions into an overall matrix to obtain a constrained overall matrix; Solving the constraint matrix to obtain the temperature distribution state of the internal nodes corresponding to the constraint matrix; Based on the temperature distribution state, the heat exchange state of the spa bed corresponding to the spa bed scene is analyzed.

4. The hydrotherapy bed temperature control method based on water temperature coupling analysis according to claim 3, characterized in that: The method of simulating the velocity-temperature distribution relationship of the hydrotherapy bed corresponding to the hydrotherapy bed scene by the fluid dynamics model includes: Setting initial parameters of a mechanical model of the fluid dynamics model; constructing a fluid velocity group of the fluid dynamics model; Based on the fluid velocity group and the initial parameters of the mechanical model, simulating the fluid temperature group of the fluid in the hydrotherapy bed using the fluid dynamics model; constructing a velocity-temperature curve of the fluid in the hydrotherapy bed based on the fluid velocity group and the fluid temperature group; calculating a coefficient of determination of the velocity-temperature curve; Determining the fitting degree of the speed-temperature curve by the determination coefficient; When the degree of fit meets a preset degree of fit threshold, the speed-temperature distribution relationship of the hydrotherapy bed is analyzed through the speed-temperature curve.

5. The hydrotherapy bed temperature control method based on water temperature coupling analysis according to claim 4, characterized in that: The step of constructing a user thermal comfort model for the spa user based on the physical parameters, water physical properties and environmental conditions includes: Based on the physical parameters, analyzing the body mass, skin temperature, evaporative heat dissipation and body work of the spa user; Analyzing the fluid specific heat capacity and ambient air temperature of the spa user corresponding to the spa bed scene according to the water physical properties and environmental conditions; The environmental energy balance function of the spa user is constructed using the following formula through the body mass, skin temperature, evaporative heat dissipation, body work, fluid specific heat capacity and ambient air temperature, wherein the environmental energy balance function is: in, Represents human body mass, represents the specific heat capacity of the fluid, Indicates skin temperature, represents the ambient air temperature, It represents evaporative heat dissipation. is the radiation heat transfer coefficient, represents the convective heat transfer coefficient, Indicates the fluid temperature of the hydrotherapy bed corresponding to the hydrotherapy user, represents the differential operation, It means that the human body does work; A user thermal comfort model of the spa user is constructed by using the environmental energy balance function and a preset thermal sensation index function.

6. The hydrotherapy bed temperature control method based on water temperature coupling analysis according to claim 5, characterized in that: The method of analyzing the thermal comfort of a spa user by using the user thermal comfort model based on the heat exchange state, the velocity-temperature distribution relationship and the physical parameters includes: Constructing the model current parameters and thermal comfort boundary conditions of the user thermal comfort model; Analyze the current convective heat transfer coefficient and the current water temperature of the spa bed corresponding to the spa user based on the current parameters of the model, the thermal comfort boundary conditions, the heat exchange state and the velocity-temperature distribution relationship; Calculating a thermal sensation index of a spa user using the user thermal comfort model based on the physical parameters, current parameters of the model, thermal comfort boundary conditions, current convective heat transfer coefficient, and current water temperature; The thermal comfort of the spa user is analyzed by means of the thermal sensation index.

7. The hydrotherapy bed temperature control method based on water temperature coupling analysis according to claim 6, characterized in that: The step of calculating the comfort loss of the spa user based on the thermal comfort comprises: identifying user characteristics of the spa user; Based on the user characteristics, analyzing the comfort influencing factors of the spa user; According to the comfort influencing factors, constructing a thermal comfort test environment for the spa user; Testing the ideal thermal comfort of the spa user through the comfort testing environment; Constructing a thermal comfort interaction system for said spa users; Utilizing the thermal comfort interactive system to optimize the ideal thermal comfort to obtain the target thermal comfort; Based on the thermal comfort level and the target thermal comfort level, a comfort loss of the spa user is calculated.

8. A hydrotherapy bed temperature control device based on water temperature coupling analysis, characterized in that: The device is used to execute the hydrotherapy bed temperature control method based on water temperature coupling analysis as described in any one of claims 1 to 7, the device comprising: A spa bed data acquisition module, used for acquiring a spa bed scene, building a multi-point real-time system of the spa bed scene, and collecting spa bed scene data of the spa bed scene through the multi-point real-time system, wherein the spa bed scene data includes water physical properties, environmental conditions and spa bed parameters; The heat transfer model building module is used to determine the heat exchange mechanism of the spa bed scene, determine the heat transfer influencing factors of the spa bed scene based on the heat exchange mechanism, analyze the spa bed solid area, fluid temperature and spa bed solid temperature of the spa bed scene through the heat transfer influencing factors, water physical properties and environmental conditions, and calculate the heat transfer equation of the spa bed corresponding to the spa bed scene based on the spa bed solid area, fluid temperature and spa bed solid temperature using the following formula, wherein the heat transfer equation is: in, represents the heat flux density of the spa bed, represents the convective heat transfer coefficient, Represents the solid area of ​​the spa bed, represents the fluid temperature, represents the solid temperature of the spa bed, constructs a heat transfer model of the spa bed corresponding to the spa bed scenario through the heat transfer equation, and uses the heat transfer model to simulate the heat exchange state of the spa bed corresponding to the spa bed scenario; The dynamic model building module is used to determine the water flow rate impact target of the spa bed scene, determine the rate analysis target of the water flow rate impact target, analyze the mass parameter, momentum parameter and energy parameter of the spa bed corresponding to the spa bed scene based on the rate analysis target, water physical properties and environmental conditions, and construct the fluid mass function of the spa bed corresponding to the spa bed scene based on the mass parameters using the following formula, wherein the fluid mass function is: in, represents the divergence operation, represents the fluid density of the spa bed in the mass parameter, represents the derivative operation, represents the fluid velocity vector of the hydrotherapy bed in the mass parameter, The mass parameter represents the fluid flow time of the spa bed. Based on the momentum parameter, the momentum change function of the fluid in the spa bed is constructed using the following formula, wherein the momentum change function is: in, represents the divergence, represents the fluid density of the hydrotherapy bed, represents the derivative operation, represents the fluid velocity vector of the hydrotherapy bed, represents the fluid force on the hydrotherapy bed in momentum parameters, represents the fluid pressure of the hydrotherapy bed in the momentum parameter, represents the hydrotherapy bed fluid dynamic viscosity, represents the fluid flow time of the hydrotherapy bed. Based on the energy parameter, the energy change function of the fluid in the hydrotherapy bed is constructed using the following formula, wherein the energy change function is: in, represents the divergence, represents the fluid density of the hydrotherapy bed, represents the derivative operation, represents the fluid heat source term of the hydrotherapy bed in the energy parameters, represents the fluid velocity vector of the hydrotherapy bed, Indicates the specific constant pressure heat capacity of the fluid in the hydrotherapy bed in the energy parameter, represents the fluid temperature of the hydrotherapy bed in the energy parameter, Representing the fluid thermal conductivity of the spa bed in the energy parameter, constructing the fluid conservation equation of the spa bed corresponding to the spa bed scene based on the fluid mass function, momentum change function and energy change function, constructing the fluid dynamics model of the spa bed scene through the fluid conservation equation, and simulating the velocity-temperature distribution relationship of the spa bed corresponding to the spa bed scene through the fluid dynamics model; A thermal comfort model building module, used for identifying a spa user in the spa bed scene, analyzing physical parameters of the spa user, and building a user thermal comfort model of the spa user based on the physical parameters, water physical properties and environmental conditions; The intelligent temperature control module of the spa bed is used to analyze the thermal comfort of the spa user based on the heat exchange state, the velocity-temperature distribution relationship and the physical parameters by using the user thermal comfort model, calculate the comfort loss of the spa user based on the thermal comfort, adjust the spa bed parameters of the spa bed based on the comfort loss, obtain the target spa bed parameters, and realize the intelligent temperature control of the spa bed by using the target spa bed parameters.

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