Dynamic heat adjustment of a spectral power distribution configurable cooking instrument
Several embodiments include a cooking instrument. The cooking instrument can include a heating system. The heating system can include one or more heating elements capable of emitting wireless energy into the cooking chamber. The cooking instrument can also include a control system. The control system can executing a heating sequence to drive the heating system, detect, based on an output signal of a sensor, a trigger event, and configure the heating system in response to detecting the trigger event.
1. A method of operating a cooking instrument comprising:
imaging, hyperspectrally, at least a portion of a cooking chamber of the cooking instrument by illuminating at least a portion of the cooking chamber with a lighting system comprising a lighting source and/or one or more heating elements of a heating system, and capturing a spectral response image utilizing an imaging system;
characterizing a material in the cooking chamber by analyzing the spectral response image; and
configuring the heating system of the cooking instrument based on the characterized material.
2. The method of claim 1 , wherein imaging, hyperspectrally, at least a portion of the cooking chamber of the cooking instrument comprises spatially scanning, spectral scanning, and/or spatio-spectral scanning.
3. The method of claim 1 , wherein illuminating and capturing are executed at least partially simultaneously such that capturing overlaps at least partially with illuminating.
4. The method of claim 1 , wherein the lighting system illuminates the cooking chamber in a sequence of flashes at different chromatic settings; and
wherein the imaging system includes image sensors sensitive to specific wavelengths respectively corresponding to monochromatic light waves corresponding to the chromatic settings.
5. The method of claim 4 , wherein the imaging system captures a plurality of spectral response images, each image with at least two dimensions; and
wherein the imaging system synchronizes with the lighting system such that the plurality of images are respectively captured during a sequence of flashes.
6. The method of claim 1 , wherein illuminating the cooking chamber comprises illuminating one or more monochromatic light waves comprising an infrared light wave, a red light wave, a blue light wave, a green light wave, an ultraviolet light wave, and/or any combination thereof.
7. The method of claim 6 , wherein the imaging system comprises an image sensor array comprising at least two different image sensors respectively capable of measuring an intensity of electromagnetic waves at or substantially at respectively different wavelengths or wavelength ranges; and
wherein one or more image sensors in the image sensor array are configured to measure intensity of electromagnetic waves at or substantially at a specific wavelength or a specific wavelength range corresponding to the one or more monochromatic light waves.
8. The method of claim 1 , wherein characterizing the material further comprises:
identifying at least one pixel in the spectral response image matching a specific spectral response pattern based on an intensity of the pixel falling within a specific range when illuminated by a monochromatic light associated with the specific range; and
identifying the material associated with a particular region associated with the at least one pixel by comparing spectral response of the region to a spectral profile associated with a material.
9. The method of claim 1 , wherein hyperspectral imaging is used to identify compositions that are not identifiable in a visible spectrum.
10. The method of claim 1 , wherein characterizing further comprises determining, based on the spectral response image, a composition and/or a location of the material in the cooking chamber.
11. The method of claim 10 , wherein determining further comprises determining a composition and/or location of a material by analyzing a plurality of spectral response images to identify at least a portion in the plurality of spectral response images matching specific spectral response patterns of a spectral profile associated with the material; and
wherein if an exact match is not determined, identifying nearest spectral profiles to a regional spectral response and determining a blend of materials associated with the nearest spectral profiles.
12. The method of claim 1 , wherein characterizing the material further comprises identifying, based on regional characteristics of a plurality of spectral response images, a region in the cooking chamber that contains the material; and
wherein configuring the heating system further comprises determining an area to target with the heating system corresponding to the region of the material.
13. The method of claim 1 , wherein configuring the heating system further comprising configuring a spectral power distribution of the heating system to specifically and/or directly heat the material.
14. A cooking instrument comprising:
a cooking chamber;
a heating system comprising one or more heating elements;
a lighting system comprising a lighting source and/or the one or more heating elements configured to illuminate at least a portion of the cooking chamber;
a hyperspectral imaging system configured capture a spectral response image;
a control system configured to:
characterize a material in the cooking chamber by analyzing the spectral response image; and
configure the heating system of the cooking instrument based on the characterized material.
15. The cooking instrument of claim 14 , wherein the lighting system illuminates the cooking chamber in a sequence of flashes at different chromatic settings;
wherein the hyperspectral imaging system includes image sensors sensitive to specific wavelengths respectively corresponding to multiple monochromatic light waves corresponding to the different chromatic settings; and
wherein the control system is configured to synchronize the image system with the lighting system such that a plurality of images are respectively captured during the sequence of flashes.
16. The cooking instrument of claim 14 , wherein the control system is further configured to:
characterize the material by identifying, based on regional characteristics of a plurality of spectral response images, a target zone in the cooking chamber that contains the material;
identify at least one pixel in the spectral response image matching a specific spectral response pattern based on an intensity of the pixel falling within a specific range when illuminated by a monochromatic light associated with the specific range;
identify the material associated with a particular region associated with the at least one pixel by comparing spectral response of the region to a spectral profile associated with a material; and
configure the heating system by determining an area to target with the heating system corresponding to the particular region of the identified material.
17. The cooking instrument of claim 14 , wherein the control system is further configured characterize the material in the cooking chamber by determining, based on the spectral response image, a composition and/or a location of the material in the cooking chamber, including determining a presence of the material by analyzing a plurality of spectral response images to identify at least a portion in the plurality of spectral response images matching specific spectral response patterns of a spectral response associated with the material; and
wherein if an exact match is not determined, identifying nearest spectral profiles to a regional spectral response and determining a blend of materials associated with the nearest spectral profiles.
18. The cooking instrument of claim 14 wherein the lighting source and/or the hyperspectral imaging system comprise:
an oleophobic coating that prevents disruption of an imaging optical path from debris; and
optics that include a color filter adapted to even out spectra of optical light traveling toward light sensors of the imaging system.
19. The cooking instrument of claim 14 , further comprising an anti-condensation structure, including one or more channels and/or slits that exposes an interior of the cooking chamber to an exterior of the cooking chamber;
wherein the anti-condensation structure enables air to flow between the cooking chamber and the exterior of the cooking chamber.
20. The cooking instrument of claim 14 , wherein the control system is further configured to:
receive a timer signal and/or a sensor signal;
detect a trigger event from the timer signal and/or the sensor signal;
generate, responsive to the detecting of the trigger event, a control signal corresponding to the one or more heating elements; and
drive, based on the control signal, the one or more heating elements to adjust a spectral power distribution of wireless energy emitted from the heating system and/or the one or more heating elements.