# US 12,109,868 B2 · Radiation information calculating device and temperature information calculating device

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- Number: US 12,109,868 B2
- Document ID: US12109868B2
- Status: Granted
- Kind: B2
- Application number: 17/343,387
- Filed: 2021-06-09
- Published: 2021-09-23
- Granted: 2024-10-08
- Earliest claimed: 2019-01-23
- Assignees: Denso Corporation
- Applicants: Denso Corporation
- Inventors: Masayuki Kodama; Hiroshi Takeda
- Web page: https://patentgrep.com/patent/US12109868B2

## CPC

- B60H 1/00742: {by detection of the vehicle occupants' presence; by detection of conditions relating to the body of occupants, e.g. using radiant heat detectors}
- B60H 1/0073: {Control systems or circuits characterised by particular algorithms or computational models, e.g. fuzzy logic or dynamic models}
- B60H 1/0075: {the input being solar radiation}
- G01J 5/0025: {Living bodies (ear thermometers G01J5/0011; detecting, measuring or recording for diagnostic purposes A61B5/00)}
- G01J 5/0859: {Sighting arrangements, e.g. cameras}
- G06V 10/764: using classification, e.g. of video objects
- G06V 20/59: inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
- B60H 2001/00178: {comprising an air passage from the HVAC box to the exterior of the cabin}
- G01J 5/48: Thermography; Techniques using wholly visual means
- G01J 2005/0077: {Imaging}
- B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N)
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING

## Abstract

In order to detect the amount of radiation received by or the temperature of air in the vicinity of each of body parts of an occupant in a vehicle, a radiation information calculating device includes: an acquisition unit that acquires member temperature information that reflects temperatures of members exposed to a cabin of a vehicle; a calculation unit configured to calculate plural radiation information corresponding to each of body parts of an occupant in the cabin based on the member temperature information acquired by the acquisition unit; and an output unit that outputs the plural radiation information calculated by the calculation unit. The radiation information represents an amount of radiation received by a corresponding body part of the occupant.

## Claims

### Claim 1

A radiation information calculating device comprising:
a processor and memory configured to
acquire member temperature information that reflects temperature of a plurality of members exposed to a cabin of a vehicle;
calculate a plurality of radiation information corresponding to each of body parts of an occupant in the cabin based on the member temperature information acquired by the processor, the radiation information representing an amount of radiation received by a corresponding body part of the occupant; and
output the plurality of radiation information calculated by the processor, wherein
the processor acquires a thermography inside the cabin captured by an infrared camera as an image including a part of the member temperature information,
the thermography includes a group of pixels representing each temperature distribution of at least one of the plurality of members,
the processor calculates an objective variable and the plurality of radiation information from an explanatory variable including the member temperature information by a trained model of a neural network learned by a supervised learning, and
the thermography includes information of solar radiation direction,
the processor and memory further configured to
calculate a plurality of air temperature information corresponding to each of body parts of the occupant in the cabin based on the member temperature information acquired by the processor, the air temperature information representing temperature of air in a vicinity of a corresponding body part of the occupant; and
output the plurality of air temperature information calculated by the processor, wherein
the processor acquires information of air blown into the cabin from an air conditioner mounted on the vehicle, the information including at least one of temperature, volume, outlet position, and flow direction of the air blown into the cabin from the air conditioner, and
the processor calculates the plurality of air temperature information based on the member temperature information and the information of air acquired by the processor.

### Claim 2 (depends on 1)

The radiation information calculating device according to claim 1, wherein
the thermography includes a group of pixels representing temperature of a ceiling of the cabin of the vehicle, a group of pixels representing temperature of a rear glass of the vehicle, and a group of pixels representing temperature of a side glass of the vehicle.

### Claim 3

A radiation information calculating device comprising:
a processor and memory configured to
acquire member temperature information that reflects temperature of a plurality of members exposed to a cabin of a vehicle;
calculate a plurality of radiation information corresponding to each of body parts of an occupant in the cabin based on the member temperature information acquired by the processor, the radiation information representing an amount of radiation received by a corresponding body part of the occupant; and
output the plurality of radiation information calculated by the processor, wherein
the processor acquires a thermography inside the cabin captured by an infrared camera as an image including a part of the member temperature information,
the thermography includes a group of pixels representing each temperature distribution of at least one of the plurality of members,
the processor calculates an objective variable and the plurality of radiation information from an explanatory variable the member temperature information by a trained model of a neural network learned by a supervised learning, and
the thermography includes a group of pixels representing temperature of a ceiling of the cabin of the vehicle, a group of pixels representing temperature of a rear glass of the vehicle, and a group of pixels representing temperature of a side glass of the vehicle,
the processor and memory further configured to
calculate a plurality of air temperature information corresponding to each of body parts of the occupant in the cabin based on the member temperature information acquired by the processor, the air temperature information representing temperature of air in a vicinity of a corresponding body part of the occupant; and
output the plurality of air temperature information calculated by the processor, wherein
the processor acquires information of air blown into the cabin from an air conditioner mounted on the vehicle, the information including at least one of temperature, volume, outlet position, and flow direction of the air blown into the cabin from the air conditioner, and
the processor calculates the plurality of air temperature information based on the member temperature information and the information of air acquired by the processor.

### Claim 4

A temperature information calculating device comprising:
a processor and memory configured to
acquire member temperature information that reflects temperature of a plurality of members exposed to a cabin of a vehicle;
calculate a plurality of air temperature information corresponding to each of body parts of an occupant in the cabin based on the member temperature information acquired by the processor, the air temperature information representing temperature of air in a vicinity of a corresponding body part of the occupant; and
output the plurality of air temperature information calculated by the processor, wherein
the processor acquires information of air blown into the cabin from an air conditioner mounted on the vehicle, the information including at least one of temperature, volume, outlet position, and flow direction of the air blown into the cabin from the air conditioner, and
the processor calculates the plurality of air temperature information based on the member temperature information and the information of air acquired by the processor,
the processor and memory further configured to
calculate a plurality of radiation information corresponding to each of body parts of the occupant in the cabin based on the member temperature information acquired by the processor, the radiation information representing an amount of radiation received by a corresponding body part of the occupant; and
output the plurality of radiation information calculated by the processor, wherein
the processor acquires a thermography inside the cabin captured by an infrared camera as an image including a part of the member temperature information,
the thermography includes a group of pixels representing each temperature distribution of at least one of the plurality of members, and
the processor calculates an objective variable and the plurality of radiation information from an explanatory variable including the member temperature information by a trained model of a neural network learned by a supervised learning.