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US 11,598,548 B2Granted
Device for estimating drowsiness of a user based on image and environment information
AssigneeDaikin Industries, Ltd.
InventorsKeita Kitagawa, Takuya Kazusa, Youichi Handa
Life of this patent
Estimating the term…
Abstract
A camera (26) takes an image of at least one user (U1, U2, U3). A room environment information sensor (13) senses room environment information relating to an environment of a room (r1) in which the at least one user (U1, U2, U3) is present. The estimator (66) estimates a drowsiness condition of the at least one user (U1, U2, U3) based on the image of the at least one user (U1, U2, U3) taken by the camera (26) and the room environment information sensed by the room environment information sensor (13).
Claims14
A drowsiness estimation device comprising:
- an imager configured to take a plurality of images of at least one user, the plurality of images comprising a first image and a second image;
- a sensor configured to sense room environment information relating to an environment of a room in which the at least one user is present;
- a processor to execute a program;
- a memory to store the program which, when executed by the processor, the processor performs processes of:
- estimating a drowsiness condition of the at least one user, based on at least one of the plurality of images of the at least one user taken by the imager and the room environment information sensed by the sensor;
- and
- making an estimation model, which is used to estimate the drowsiness condition, learn based on a change in a movement and a condition by which the drowsiness of the at least one user has been determined, the change being obtained by comparison between the first image taken by the imager before a first air-conditioning operation of the air conditioner for conditioning air in the room is performed based on the result estimated by the processor, and the second image taken by the imager after the first air-conditioning operation;
- and
- a controller configured to control the first air-conditioning operation of the air conditioner, based on directly using a result of a current level of drowsiness of the at least one user estimated by the processor, so that a level of the drowsiness condition of the at least one user decreases.
6 more elements
A drowsiness estimation device comprising:
- an imager configured to take an image of at least one user;
- a sensor configured to sense room environment information relating to an environment of a room in which the at least one user is present;
- a processor to execute a program;
- a memory to store the program which, when executed by the processor, the processor performs a process of:
- estimating a drowsiness condition of the at least one user, based on the image of the at least one user taken by the imager and the room environment information sensed by the sensor;
- and
- a controller configured to control a first air-conditioning operation of the air conditioner for conditioning air in the room, based on directly using a result of a current level of drowsiness of the at least one user estimated by the processor, so that a level of the drowsiness condition of the at least one user decreases,
- wherein the controller learns details of control of the first air-conditioning operation, based on the image taken by the imager after the first air-conditioning operation performed based on the result estimated by the processor, so that the level of the drowsiness condition of the at least one user decreases.
5 more elements
Dependencies are inferred from the claim text.