Method for estimating thermal sensation, thermal sensation estimation apparatus, air conditioner, and recording medium
First Claim
1. A method used by a thermal sensation estimation apparatus, the method comprising:
- obtaining a thermal image of an area including a person captured by a thermal camera;
calculating, on the basis of the thermal image, a first temperature, which is a surface temperature of a first area, which is a part of a human body surface area including skin or clothes of the person, exposed to a first thermal environment, and a second temperature, which is a surface temperature of a second area, which is at least a part of the human body surface area other than the first area, exposed to a second thermal environment different from the first thermal environment;
calculating a first amount of heat lost, which is an amount of heat lost from the first area of the person in a unit area, on the basis of the first temperature and first information indicating thermal characteristics of the first thermal environment;
calculating a second amount of heat lost, which is an amount of heat lost from the second area of the person in a unit area, on the basis of the second temperature and second information indicating thermal characteristics of the second thermal environment;
obtaining an area ratio of the first area to the second area;
calculating a total amount of heat lost, which is an amount of heat lost from a whole body of the person in a unit area, on the basis of the first amount of heat lost, the second amount of heat lost, and the area ratio; and
estimating thermal sensation, which indicates a degree of warmth or coldness of the person, on the basis of the total amount of heat lost.
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Abstract
A method for estimating thermal sensation calculates, on the basis of a thermal image, a first temperature, which is a surface temperature of a first area, and a second temperature, which is a surface temperature of a second area, calculates a first amount of heat lost on the basis of the first temperature and first information, calculating a second amount of heat lost on the basis of the second temperature and second information, obtains an area ratio of the first area to the second area, calculates a total amount of heat lost, which is an amount of heat lost from a whole body of a person in a unit area, on the basis of the first amount of heat lost, the second amount of heat lost, and the area ratio, and estimates thermal sensation, which indicates a degree of warmth or coldness of the person, on the basis of the total amount of heat lost.
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Citations
29 Claims
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1. A method used by a thermal sensation estimation apparatus, the method comprising:
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obtaining a thermal image of an area including a person captured by a thermal camera; calculating, on the basis of the thermal image, a first temperature, which is a surface temperature of a first area, which is a part of a human body surface area including skin or clothes of the person, exposed to a first thermal environment, and a second temperature, which is a surface temperature of a second area, which is at least a part of the human body surface area other than the first area, exposed to a second thermal environment different from the first thermal environment; calculating a first amount of heat lost, which is an amount of heat lost from the first area of the person in a unit area, on the basis of the first temperature and first information indicating thermal characteristics of the first thermal environment; calculating a second amount of heat lost, which is an amount of heat lost from the second area of the person in a unit area, on the basis of the second temperature and second information indicating thermal characteristics of the second thermal environment; obtaining an area ratio of the first area to the second area; calculating a total amount of heat lost, which is an amount of heat lost from a whole body of the person in a unit area, on the basis of the first amount of heat lost, the second amount of heat lost, and the area ratio; and estimating thermal sensation, which indicates a degree of warmth or coldness of the person, on the basis of the total amount of heat lost. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A thermal sensation estimation apparatus comprising:
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a processor; and a memory, wherein the processor performs operations including obtaining a thermal image of an area including a person captured by a thermal camera, calculating, on the basis of the thermal image, a first temperature, which is a surface temperature of a first area, which is a part of a human body surface area including skin or clothes of the person, exposed to a first thermal environment, and a second temperature, which is a surface temperature of a second area, which is at least a part of the human body surface area other than the first area, exposed to a second thermal environment different from the first thermal environment, calculating a first amount of heat lost, which is an amount of heat lost from the first area of the person in a unit area, on the basis of the first temperature and first information indicating thermal characteristics of the first thermal environment, calculating a second amount of heat lost, which is an amount of heat lost from the second area of the person in a unit area, on the basis of the second temperature and second information indicating thermal characteristics of the second thermal environment, obtaining an area ratio of the first area to the second area, calculating a total amount of heat lost, which is an amount of heat lost from a whole body of the person in a unit area, on the basis of the first amount of heat lost, the second amount of heat lost, and the area ratio, and estimating thermal sensation, which indicates a degree of warmth or coldness of the person, on the basis of the total amount of heat lost. - View Dependent Claims (28)
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29. A non-transitory recording medium storing a program for causing a computer to function as a thermal sensation estimation apparatus, the program causing the computer to perform operations comprising:
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obtaining a thermal image of an area including a person captured by a thermal camera; calculating, on the basis of the thermal image, a first temperature, which is a surface temperature of a first area, which is a part of a human body surface area including skin or clothes of the person, exposed to a first thermal environment, and a second temperature, which is a surface temperature of a second area, which is at least a part of the human body surface area other than the first area, exposed to a second thermal environment different from the first thermal environment; calculating a first amount of heat lost, which is an amount of heat lost from the first area of the person in a unit area, on the basis of the first temperature and first information indicating thermal characteristics of the first thermal environment; calculating a second amount of heat lost, which is an amount of heat lost from the second area of the person in a unit area, on the basis of the second temperature and second information indicating thermal characteristics of the second thermal environment; obtaining an area ratio of the first area to the second area; calculating a total amount of heat lost, which is an amount of heat lost from a whole body of the person in a unit area, on the basis of the first amount of heat lost, the second amount of heat lost, and the area ratio; and estimating thermal sensation, which indicates a degree of warmth or coldness of the person, on the basis of the total amount of heat lost.
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Specification