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US 2026/0287183 A1Published application
Automated range hood for ventilating a cooking surface
OwnerJiaxing Ruan, Aurelio Reyesinventors
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Abstract
An automated range hood includes a controller that selects a fan speed for one or more ventilation assemblies by identifying a minimum number of pixels that satisfy a threshold. The controller automatically turns on one or more light sources to illuminate a surface under the range hood when motion is detected or when the one or more ventilation assemblies are in use.
Claims20
An automated range hood for ventilating a cooking surface, the automated range hood comprising:
- a hood housing;
- a ventilation assembly mounted in the hood housing, the ventilation assembly including an electric motor and a fan driven by the electric motor;
- an infrared sensor measuring pixel values in an array covering the cooking surface;
- and
- a controller including at least one processing device and at least one memory device storing software instructions that, when executed, cause the controller to:
- determine a plurality of thresholds based on at least one of a type of the cooking surface and a distance between the hood housing and the cooking surface;
- select a minimum number of pixel values for satisfying each threshold of the plurality of thresholds;
- receive the pixel values from the infrared sensor;
- and
- identify a fan speed from a plurality of fan speeds for the electric motor to drive the fan, the fan speed identified by a highest threshold from the plurality of thresholds satisfied by the minimum number of pixel values in the array.
7 more elements
A controller for a range hood, the controller comprising:
- at least one processing device;
- and
- at least one memory device storing software instructions that, when executed by the at least one processing device, cause the controller to:
- determine a plurality of thresholds based on at least one of a type of a cooking surface and a distance between a hood housing and the cooking surface;
- select a minimum number of pixel values for satisfying each threshold of the plurality of thresholds;
- receive pixel values from an infrared sensor;
- and
- identify a fan speed from a plurality of fan speeds for an electric motor to drive a fan, the fan speed identified by a highest threshold from the plurality of thresholds satisfied by the minimum number of pixel values.
5 more elements
A method of ventilating a cooking surface, the method comprising:
- determining a plurality of thresholds based on at least one of a type of the cooking surface and a distance between a hood housing and the cooking surface;
- selecting a minimum number of pixel values for satisfying each threshold of the plurality of thresholds;
- receiving pixel values from an infrared sensor;
- and
- identifying a fan speed from a plurality of fan speeds for an electric motor to drive a fan, the fan speed identified by a highest threshold from the plurality of thresholds satisfied by the minimum number of pixel values.
2 more elements
Dependencies are inferred from the claim text.