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Construction method for bathtub temperature control model

A construction method and bathtub technology, applied in instrumentation, design optimization/simulation, calculation, etc., can solve problems such as waste of water resources, troublesome addition of hot water, and reduction of people's bathing comfort

Active Publication Date: 2018-11-27
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Bathing in daily life is a thing that can make people feel comfortable physically and mentally, but when taking a bath, it is often troublesome because of the heat preservation of the water in the bathtub. It is very troublesome to frequently release the cold water and add hot water
Moreover, it is difficult to determine the amount of hot water added artificially, too much or too little will make people feel uncomfortable, which not only seriously reduces the comfort of people's bathing, but also easily leads to the waste of water resources

Method used

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  • Construction method for bathtub temperature control model
  • Construction method for bathtub temperature control model
  • Construction method for bathtub temperature control model

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Experimental program
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Embodiment

[0122] In the process of building the temperature control model of this embodiment, it is first necessary to determine the model of the water temperature in the bathtub in terms of space and time. It is easy to think that this is a heat conduction problem in the mathematical physics equation, and the boundary conditions belong to the third type of boundary conditions . Since this is a three-dimensional problem, the amount of numerical calculation is large, which brings difficulties to the solution of the problem. The first problem we need to overcome is how to reduce the dimension. For a simple 3D partial differential equation:

[0123] u'=Δ 3 u+f (1)

[0124] where u is a three-dimensional space-time variable function u(x,y,z,t), Δ 3 is the three-dimensional Laplace operator f(x,y,z,t) is the source-sink term. According to Beer Lambert's law, it can be assumed that it has a solution of separating variables:

[0125] u=f(x,y,t)g(z,t) (2)

[0126] In this paper, g(z, t)...

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Abstract

The invention relates to a construction method for a bathtub temperature control model. According to the method, the external environment of water bath in the bathtub during bathing and the influenceof human movement on water temperature are fully considered so that a water temperature comfort function is established. The optimal comfort strategy is obtained by selecting the combination of different water adding time intervals and water adding time. and temperature control is performed according to the optimal strategy and thus the temperature of water in the bathtub can be effectively maintained.

Description

technical field [0001] The invention relates to a method for constructing a temperature control model of a bathtub, which belongs to the technical field of smart home. Background technique [0002] Bathing in daily life is a thing that can make people feel comfortable physically and mentally, but when bathing, it is often troublesome because of the heat preservation of the water in the bathtub. It is very troublesome to frequently release cold water and add hot water. And the amount of hot water added is also difficult to determine artificially, too much or too little will make people feel uncomfortable, which not only seriously reduces the comfort of people's bathing, but also easily leads to the waste of water resources. And the temperature of bathing is also very important. For people with cardiovascular and cerebrovascular diseases, being in a high temperature environment for a long time will bring serious consequences, so the temperature of the water in the bathtub need...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 孙伟杜洋涛张小瑞郭泓昊孙芳
Owner NANJING UNIV OF INFORMATION SCI & TECH
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