EP3344007B1 - Kochvorrichtung - Google Patents

Kochvorrichtung Download PDF

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Publication number
EP3344007B1
EP3344007B1 EP16838758.7A EP16838758A EP3344007B1 EP 3344007 B1 EP3344007 B1 EP 3344007B1 EP 16838758 A EP16838758 A EP 16838758A EP 3344007 B1 EP3344007 B1 EP 3344007B1
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EP
European Patent Office
Prior art keywords
cooking object
temperature
heating
controller
camera
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Active
Application number
EP16838758.7A
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English (en)
French (fr)
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EP3344007A1 (de
EP3344007A4 (de
Inventor
Atsushi Fujita
Naoaki Ishimaru
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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Publication of EP3344007A1 publication Critical patent/EP3344007A1/de
Publication of EP3344007A4 publication Critical patent/EP3344007A4/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • F24C15/105—Constructive details concerning the regulation of the temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates

Definitions

  • the present invention relates to a heating cooker for heating a container containing a cooking object.
  • a heating cooker a configuration in which a heating coil which is disposed on a lower side of a top plate on which a container such as a pot containing a cooking object is mounted and inductively heats the container on the top plate is provided and which controls an output of the heating coil based on a detection temperature of a temperature sensor which is disposed on a lower side of the top plate and detects a temperature of a bottom side of the container on the top plate is known (see, for example PTL 1, Japanese Patent Unexamined Publication No. 2012-9199 ).
  • JP 2015 106462 A discloses a heating cooker according to the preamble of claim 1.
  • KR 2013 0136902 A and DE 10 2013 207791 A1 disclose further heating cookers.
  • a temperature sensor of a heating cooker described in PTL 1 measures a temperature on a bottom side of a container, that is, a temperature of a lower side portion of a cooking object contained in the container, there is a case where the entirety of the cooking object cannot be preferably cooked by heating.
  • the cooking object is stew or the like and thus the viscosity thereof is high and the container is a deep-bottom container, an upper side portion of the cooking object is unlikely to be sufficiently heated. Therefore, when the heating of the container is controlled based on a detection temperature of a temperature sensor, that is, the temperature of the lower side portion of the cooking object, there is a case where the entirety of the cooking object cannot be preferably cooked by heating. Therefore, for example, there is a possibility that the lower side portion of the cooking object is scorched.
  • the invention provides a heating cooker which can preferably cooks the entirety of the cooking object by heating, in the heating cooker which heats the container containing a cooking object from a lower side thereof and controls the heating of the container based on the detection temperature of the temperature sensor detecting the temperature of the bottom side of the container.
  • a heating cooker including a top plate on which a container containing a cooking object is mounted, and a heater which is provided in the lower side of the top plate and heats the container mounted on the top plate.
  • a camera which is disposed on an upper side of the top plate and images the top plate from above and a temperature sensor which is disposed on a lower side of the top plate and detects the temperature of the container mounted on the top plate, are included.
  • a controller which estimates a state of the cooking object in an inside of the container based on the captured image of the camera and the detection temperature of the temperature sensor and controls output of the heater based on the estimation result, is included.
  • the entirety of the cooking object contained in the container can be preferably cooked by heating, in the heating cooker which heats the container containing a cooking object from a lower side thereof and controls the heating of the container based on the detection temperature of the temperature sensor detecting the temperature of the bottom side of the container.
  • FIG. 1 is a perspective view illustrating a heating cooker according to an exemplary embodiment of the invention.
  • FIG. 2 is a schematic view illustrating a configuration of the heating cooker according to the exemplary embodiment of the invention.
  • FIG. 3 is a block diagram illustrating a control system of the heating cooker according to the exemplary embodiment of the invention.
  • an X-axis direction indicates a width direction of the heating cooker
  • a Y-axis direction indicates a depth direction thereof
  • a Z-axis direction indicates a height direction thereof.
  • heating cooker 10 has casing 12 and top plate 14 which is attached to an upper side of casing 12 and on which container C containing cooking object T such as stew or the like is mounted.
  • heating coils 16A to 16C are disposed as heaters of the heating cooker 10 in a lower side of the top plate 14, that is, in an inside of the casing 12. Heating coils 16A to 16C inductively heat container C mounted on top plate 14.
  • a plurality of touch keys 18A to 18C for an operation of each of heating coils 16A to 16C by a user are provided on a portion of top plate 14 on front face 10a side of heating cooker 10. For example, heating of heating coil 16A is started or stopped by an operation of corresponding touch key 18A. In addition, the heating level (for example, four steps) of heating coil 16A can be adjusted by the operation of touch key 18A.
  • a plurality of output displays 20A to 20C for displaying the output states (heating levels) of heating coils 16A to 16C are also provided on the portion of top plate 14 on front face 10a side of heating cooker 10.
  • setting portion 22 is provided on front face 10a side of heating cooker 10.
  • Setting portion 22 can be put in and taken out from casing 12 and includes setting key 22a for setting the heating by heating coils 16A to 16C in detail and setting display 22b for displaying the setting contents, detailed states of heating coils 16A to 16C, or the like.
  • Setting portion 22 sets a heating temperature, a heating time, a timer, or the like of heating coils 16A to 16C.
  • heating cooker 10 includes notifying portion 24 such as a speaker for notifying the user on front face 10a side of heating cooker 10.
  • heating cooker 10 includes a plurality of temperature sensors 26A to 26C for detecting the temperature of container C mounted on top plate 14 and weight sensor 28 for detecting the weight of container C mounted on top plate 14.
  • the plurality of temperature sensors 26A to 26C are disposed in the lower side of top plate 14 and are disposed at the center of each of heating coils 16A to 16C.
  • temperature sensor 26A is disposed on the upper side of heating coil 16A and detects the temperature of a bottom side of container C which is inductively heated by heating coil 16A via top plate 14.
  • weight sensor 28 detects the weight of a mounting object on the top plate 14, that is, the sum of the weight of the plurality of containers C and the weight of the cooking object contained in each of containers C in a case where there are a plurality of containers C.
  • heating cooker 10 is disposed in the upper side of top plate 14, and has camera 30 for imaging top plate 14 from upper side.
  • Camera 30 is a camera capable of capturing a still image, a moving image, an infrared image, or the like, for example, and images the entirety of top plate 14.
  • Camera 30 is attached to a ceiling or a range hood (not illustrated) or the like positioned on the upper side of heating cooker 10.
  • camera 30 is attached to the range hood via a magnet.
  • camera 30 may be attached to an arm (not illustrated) provided in heating cooker 10.
  • camera 30 is configured to wirelessly communicate with controller 50 of heating cooker 10. Therefore, as illustrated in FIG. 2 , camera 30 has antenna 32 and antenna 34 is provided in the inside of casing 12 of heating cooker 10.
  • camera 30 and controller 50 are connected via router device 36.
  • camera 30 and controller 50 are connected to local area network 38 centered around router device 36 so as to enable wireless communication.
  • router device 36 is connected to Internet 40.
  • heating cooker 10 that is, the control performed by controller 50 will be described.
  • FIG. 3 is a block diagram illustrating a control system of heating cooker 10.
  • controller 50 of heating cooker 10 is configured to receive signals corresponding to the operation of the user on touch keys 18A to 18C and setting key 22a of setting portion 22 therefrom. Controller 50 is also configured to receive signals corresponding to the temperatures detected by temperature sensors 26A to 26C, respectively. Controller 50 is further configured to receive a signal corresponding to the weight detected by weight sensor 28. Controller 50 is configured to receive the captured image (data) captured by camera 30 from camera 30.
  • controller 50 of heating cooker 10 is configured to control heating coils 16A to 16C, output displays 20A to 20C, setting display 22b, and notifying portion 24.
  • controller 50 controls the outputs of heating coils 16A to 16C so that temperature sensors 26A to 26C continue to detect the heating temperature set by the user via setting key 22a of setting portion 22. Accordingly, for example, in a case where fried foods being cooked, the oil contained in container C can be maintained at a constant temperature.
  • controller 50 stops heating coils 16A to 16C and notifies the user of completion of the boiling via notifying portion 24.
  • controller 50 performs various controls based on the captured image of camera 30.
  • controller 50 of heating cooker 10 includes image acquiring portion 52 for acquiring a captured image from camera 30, image processor 54 for processing the acquired image, and cooking object state estimator 56 for estimating a state of the cooking object in the inside of container C based on the image processing result. Further, controller 50 includes heating coil controller 58 for controlling heating coils 16A to 16C based on the estimation result of cooking object state estimator 56, and storage portion 60.
  • Image acquiring portion 52 of controller 50 of heating cooker 10 acquires the captured image captured by camera 30, for example, the captured image showing a state of top plate 14 on which container C containing cooking object T during cooking by heating is mounted.
  • Image processor 54 performs image processing on the captured image of camera 30 acquired by image acquiring portion 52. For example, an image of container C mounted on top plate 14 is trimmed from the captured image showing the entirety of top plate 14 acquired. In addition, for example, image processor 54 performs processing such as removing noise from the captured image, adjusting the contrast of the captured image, emphasizing the edge of the captured image, or the like.
  • cooking object state estimator 56 estimates a state of cooking object T contained in the inside of container C based on at least one of the detection temperature of temperature sensors 26A to 26C and the detection weight of weight sensor 28 in some cases.
  • Heating coil controller 58 controls the outputs of heating coils 16A to 16C based on the signals from touch keys 18A to 18C and setting key 22a or based on the estimation result of cooking object state estimator 56.
  • Storage portion 60 stores a variety of information (data) although details thereof will be described below.
  • Controller 50 of heating cooker 10 described above performs various controls based on the captured image of camera 30.
  • outputs of the heating coils 16A to 16C are controlled based on the state of the upper side portion of cooking object T captured in the captured image by camera 30.
  • controller 50 estimates whether or not the cooking of cooking object T by heating is in a completed state and decreases or stops the outputs of heating coils 16A to 16C, based on tint or boiling state of the upper side portion of cooking object T captured in the captured image of camera 30. In addition to this, controller 50 notifies the user of the completion of the cooking by heating via notifying portion 24.
  • the completion of cooking of cooking object T by heating is estimated based on the tint of the upper side portion of cooking object T, for example, the finished color of cooking object T desired by the user is selected via setting portion 22.
  • the completion cooking by heating is estimated by comparing the finished color selected by the user with the tint of the upper side portion of cooking object T captured in the captured image of camera 30.
  • controller 50 determines whether or not a lid is disposed on container C based on the captured image of camera 30, and controls the output of heating coils 16A to 16C according to the presence or absence of the lid. For example, controller 50 determines that the lid is removed from container C by the user, based on a plurality of captured images captured at different timings from each other by camera 30. Based on the determination, the outputs of heating coils 16A to 16C are increased compared to the output before the lid is removed. Accordingly, cooking object T contained in container C after the lid is removed can be maintained at the temperature before the lid is removed.
  • controller 50 performs various controls based on the captured image of camera 30 and the detection temperature of temperature sensors 26A to 26C.
  • FIG. 4 is a flowchart illustrating an example of a flow of an operation of heating cooker 10 based on a captured image of camera 30.
  • the flow illustrated in FIG. 4 is a flow of control of the heating coil which is suitable when cooking object T has a high viscosity, in particular, when curry, stew or the like is cooked by heating, for example.
  • the control of the flow illustrated in FIG. 4 is continued while cooking object T in the inside of the container C is cooked by heating.
  • an example using heating coil 16A will be described.
  • cooking object state estimator 56 of controller 50 of heating cooker 10 calculates the temperature of the upper side portion of cooking object T contained in container C, based on the captured image of camera 30 (Step S100). For example, camera 30 captures an infrared image and calculates the temperature of the upper side portion of cooking object T based on the infrared image.
  • controller 50 of heating cooker 10 acquires the detection temperature of temperature sensor 26A (step S110). In other words, the temperature of the lower side portion of cooking object T detected by temperature sensor 26A is acquired.
  • cooking object state estimator 56 of controller 50 of heating cooker 10 calculates difference in temperature between the temperature of the upper side portion of cooking object T calculated in step S100 and the temperature of the lower side portion of the cooking object T acquired in step S110 (Step S120).
  • cooking object state estimator 56 of controller 50 of heating cooker 10 determines whether or not difference in temperature between the upper side portion and the lower side portion of cooking object T calculated in step S120 is higher than a predetermined difference in temperature (step S130).
  • cooking object state estimator 56 estimates that there is a possibility that cooking object T is scorched at the bottom of the container C. Based on the estimation result, heating coil controller 58 of controller 50 controls heating coil 16A so as to decrease the output in order to suppress scorching of cooking object T (step S140). The process returns to step S100.
  • cooking object state estimator 56 estimates that the possibility that cooking object T is scorched at the bottom of container C is low. Based on the estimation result, heating coil controller 58 controls heating coil 16A so as to output with the set value (step S150). The process returns to step S100.
  • the "setting value" referred here is a value corresponding to the output level determined by the user via touch key 18A, or a value set by the user via setting key 22a.
  • the entirety of cooking object T in the inside of container C can be preferably heated while scorching being suppressed.
  • the output of heating coil 16A is decreased. Accordingly, scorching of the lower side portion of cooking object T can be suppressed.
  • the upper side portion of cooking object T is heated by the heat of the lower side portion moving to the upper side portion thereof. Therefore, when the user determines that the cooking by heating is completed by looking at the upper side portion of cooking object T and then heating of heating coil 16A is stopped, the entirety of cooking object T in the inside of container C is preferably heated.
  • the state may be notified to the user via notifying portion 24.
  • notifying portion 24 notifies the user so as to stir cooking object T.
  • FIG. 5 is a flowchart illustrating a flow of another example of the operation of heating cooker 10 based on the captured image of camera 30.
  • the flow illustrated in FIG. 5 is a control flow of a heating coil which is suitable when cooking object T such as grilled fish, steak, or the like has a front surface and a back surface and is turned upside down during cooking thereof by heating by the user.
  • a heating coil 16A will be described.
  • cooking object state estimator 56 of controller 50 of heating cooker 10 calculates the cumulative amount of heat (heating amount) added to cooking object T from the start of heating (step S200).
  • cooking object state estimator 56 specifies the type and size of cooking object T based on the image of cooking object T captured in the captured image of camera 30, that is, specific heat and mass of cooking object T are specified. Therefore, data of specific heat and density is stored in storage portion 60 of controller 50 in advance for each type of cooking object T to be cooked by heating by using heating cooker 10.
  • cooking object state estimator 56 calculates change in temperature of the upper side portion of cooking object T and calculates change in temperature of the lower side portion of cooking object T (that is, the change in detecting temperature of the temperature sensor 26A), based on the captured image of the camera 30.
  • Cooking object state estimator 56 calculates the heating amount to cooking object T using the specific heat and mass of the specified cooking object T and the calculated change in the temperature between the upper portion and the lower portion of cooking object T.
  • mass thereof can be specified based on a two-dimensional image captured in the captured image of camera 30.
  • thickness thereof can be specified based on the time from the start of heating until the temperature of the upper portion starts to be changed.
  • the mass of cooking object T can be specified based on the specified thickness and the two-dimensional image captured in the captured image of camera 30.
  • storage portion 60 stores the heating amount to cooking object T calculated in step S200 (step S210).
  • cooking object state estimator 56 determines whether or not cooking object T is reversed upside down by being turned over by the user based on the plurality of captured images captured by camera 30 at different timings from each other (step S220).
  • the user confirms a baking state on the back surface (the surface in contact with container C).
  • the user next turns over cooking object T, that is, reverses cooking object T upside down in order to bake the next surface.
  • the reversal of cooking object T performed at this arbitrary timing is detected in step S220.
  • step S220 When reversal of cooking object T is detected in step S220, the process proceeds to step S230, or otherwise, the process returns to step S200.
  • cooking object state estimator 56 calculates the heating amount to cooking object T as in step S200 (step S230). However, here, the heating amount for cooking object T after cooking object T is reversed upside down is calculated.
  • cooking object state estimator 56 compares the heating amount to cooking object T after cooking object T is reversed upside down and the heating amount before the cooking object T is reversed (that is, stored in step S210) and then determines whether or not the heating amounts substantially agree with each other (step S240). For example, it is determined whether or not the heating amount after cooking object T is reversed is 0.8 to 1.0 times the heating amount before cooking object T is reversed. In other words, the heating amount for desirably baking the back surface of cooking object T substantially agrees with the heating amount for desirably baking the front surface of cooking object T, and as a result thereof it is determined whether or not both surfaces of the cooking object T is desirably baked.
  • step S250 the process proceeds to step S250, or otherwise, the process returns to step S230.
  • heating coil controller 58 stops heating coil 16A (that is, decreases the output) and cooking of cooking object T by heating is completed (step S250).
  • Controller 50 notifies of the completion of the cooking of the cooking object T by heating via the notifying portion 24 (step S260).
  • the entirety of cooking object T can be preferably heated while scorching is suppressed, in particular, the front surface and the back surfaces of cooking object T can be desirably and approximately equally baked.
  • captured image of the camera 30 can be used for various purposes.
  • cooking object T of which cooking by heating is completed that is, a finished product of cooking object T may be captured by camera 30 and the captured image may be stored in storage portion 60 of controller 50 of heating cooker 10.
  • the cooking history of the user can be managed by using the image of the finished product of cooking object T.
  • the image of the finished product of cooking object T stored in storage portion 60 can be used for various purposes. For example, the image can be posted on the website.
  • calorie or nutrient components of a finished dish is estimated and thus the estimation result may be preserved by the type of the dish being specified based on the captured image of camera 30 captured the finished dish or a dish during cooking and the weight of the specified dish being detected by the weight sensor.
  • the user can consider a dish menu which takes into account the health, and as a result, the user can have a healthy eating habit.
  • controller 50 of heating cooker 10 may record the process up to the completion of cooking object T based on the captured image of camera 30.
  • controller 50 specifies the type of a plurality of food materials that the user has input into the inside of container C based on the captured image (captured moving image) of camera 30.
  • the weight of each food material is specified based on the detection weight of weight sensor 28.
  • controller 50 acquires the change in the detection temperature of temperature sensors 26A to 26C, that is, acquires the history of operations (high-heat operation, medium-heat operation, low-heat operation) on heating cooker 10 by the user.
  • controller 50 can acquire recipes of the user.
  • the acquired recipes of the user are stored in storage portion 60.
  • the recipes of the user stored in storage portion 60 of controller 50 of heating cooker 10 can be used for various purposes.
  • heating cooker 10 can transmit recipe information (data) to portable terminal 42 of the user which is connected to local area network 38 centered around router device 36. Accordingly, the user can reproduce the same cooking as the cooking indicated by the recipe data while referring to the recipe data transmitted to portable terminal 42.
  • the heating cooker can compare the recipe information of the user with the ideal recipe information, and can advise the user on the ideal cooking method based on the comparison result.
  • controller 50 of heating cooker 10 acquires ideal recipe information regarding health, for example, via Internet 40, and compares the recipe information with the recipe information of the user. Based on the comparison result, for example, information on the type of food material to be decreased and appropriate weight thereof is transmitted to portable terminal 42 of the user via local area network 38. Accordingly, the user can create healthy dishes when performing the same cooking again.
  • recipe information of a plurality of users stored in storage portion 60 a deviation of nutrition may be examined and a recipe for improving the deviation may be provided to the user.
  • the dish which is arranged on a plate may be captured by camera 30.
  • the dish when the user arranges the dishes on the plate, the dish may be specified based on the captured image of camera 30 and the position on the plate on which the food material included in the dish should be mounted may be notified by the notifying portion 24.
  • the cooked food material can be arranged to have a good appearance.
  • the mounting position of the food material before cooking may be notified by the notifying portion 24 without being limited to the food material after cooking. For example, in a case of pizza, in order to improve appearance thereof after completion of cooking, the preferred position on dough of the food material to be topped to the dough before cooking may be notified by notifying portion 24.
  • the position of the top plate 14 which is well captured by the camera 30 may be indicated to the user.
  • a portion of the top plate 14 which is well captured by the camera 30 emits light.
  • the light emission is performed by irradiating light from an LED disposed on a lower side of the portion of the top plate 14.
  • camera 30 and controller 50 are connected via local area network 38 centered around router device 36. Therefore, the distance between camera 30 and top plate 14 of heating cooker 10 can be adjusted. Therefore, it is possible to install heating cooker 10 in various residences in which, the heights of the range hoods to which camera 30 is attached are different from each other, for example.
  • controller 50 can calculate the temperature of the upper side portion of cooking object T and the size of cooking object T with high accuracy, based on the captured image of camera 30.
  • the type of cooking object T can be specified with high accuracy.
  • the entirety of cooking object T can be preferably heated.
  • heating cooker 10 has one camera 30, the number of camera of the heating cooker according to the exemplary embodiment of the invention is not limited to one.
  • a camera may be disposed on the upper side of each of the plurality of heating coils.
  • camera 30 and controller 50 of heating cooker 10 are wirelessly connected via local area network 38, it is not limited to this. At least one of camera 30 and controller 50 may be wired to local area network 38. In addition, camera 30 may be wirelessly connected or wired directly to controller 50 of heating cooker 10.
  • heating cooker 10 includes three heating coils 16A to 16C, the number of the heating coil of heating cooker 10 according to the exemplary embodiment of the invention is not limited to this. There may be one heating coil or three or more heating coils.
  • the container can be disposed on an arbitrary position of the top plate.
  • the container disposed on the arbitrary position is inductively heated by at least one heating coil existing in the lower side thereof.
  • the induction heating of the container by the heating coil which is partially positioned in the lower side of the container is inefficient. Rather than using such a heating coil, it is more efficient to increase the output of the heating coil which is entirely positioned in the lower side of the container.
  • the size of the container mounted on the top plate and the mounting position thereof are specified with high accuracy.
  • the overlapping amount between each heating coil and container with each other is calculated, and the heating coil of which the overlapping amount exceeds a predetermined value is specified.
  • the container is inductively heated by using the specified heating coil.
  • difference between the upper temperature and the lower temperature is calculated based on the temperature of the upper side portion of the cooking object T calculated based on the captured image of the camera 30 and the temperature of the lower side portion of the cooking object T detected by the temperature sensors 26A to 26C and a state where there is a possibility that the cooking object T is scorched is estimated based on the calculated difference between the upper temperature and lower temperature.
  • the heating amount to cooking object T is estimated.
  • the state of the cooking object estimated based on the captured image of the camera and the detection temperature of the temperature sensor is not limited thereto.
  • a state in which the entirety of the cooking object is preferably uniformly heated can be estimated by the difference between the upper temperature and lower temperature being substantially zero.
  • the same cooking object can be cooked by heating to the same state again, by the heating amount to the cooking object being stored.
  • the boiling state of the cooking object can be estimated.
  • various states of the cooking object can be estimated compared with a case where the temperature sensor is only used.
  • a top plate on which a container containing a cooking object is mounted, a heater which is provided in a lower side of the top plate and heats the container which is mounted on the top plate, and a camera which is disposed on an upper side of the top plate and images the top plate from above.
  • a temperature sensor which is disposed on the lower side of the top plate and detects a temperature of the container which is mounted on the top plate and a controller which estimates a state of the cooking object in the inside of the container based on a captured image of the camera and the detection temperature of the temperature sensor and controls output of the heaters based on the estimation result.
  • the entirety of the cooking object contained in the container can be preferably cooked by heating.
  • the controller is configured to calculate a temperature of the upper side portion of the cooking object based on the captured image of the camera, and is configured to estimate a state of the cooking object in the inside of the container based on the difference between the upper temperature and the lower temperature which is difference in temperature between the calculated temperature of the upper side portion of the cooking object and the detection temperature of the temperature sensor.
  • the controller may be configured to estimate that there is a possibility that the cooking object is in a state where the lower side portion thereof is scorched and then decrease an output of the heater, when the calculated difference between the upper temperature and the lower temperature is greater than a predetermined difference in temperature.
  • the entirety of the cooking object can be preferably cooked by heating while the generation of scorching is suppressed.
  • the controller is configured to calculate a temperature of the upper side portion of the cooking object based on the captured image of the camera, and is configured to estimate a heating amount to the cooking object in the inside of the container based on the change in calculated temperature of the upper side portion of the cooking object and change in the detection temperature of the temperature sensor.
  • the controller may be configured to detect that the cooking object is reversed upside down by being turned over by the user based on the captured image of the camera, and may be configured to decrease the output of the heating section when the heating amount to the cooking object after the upside down of the cooking object is detected substantially agrees with the heating amount to the cooking object before the upside down of the cooking object is detected.
  • both surfaces of the cooking object can be baked as desired.
  • the heating cooker may have a notifying portion for notifying the user of the state of the cooking object estimated by the controller.
  • the user can know the state of the cooking object.
  • the invention is applicable to any heating cooker which heats a container containing the cooking object.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (4)

  1. Heizkocher (10), der Folgendes umfasst:
    eine obere Platte (14), auf der ein Behälter (C) angebracht ist, der ein Kochobjekt (T) enthält;
    eine Heizvorrichtung (16A; 16B; 16C), die an einer Unterseite der oberen Platte vorgesehen ist und den Behälter (C) erwärmt, der an der oberen Platte (14) angebracht ist;
    eine Kamera (30), die auf einer Oberseite der oberen Platte (14) angeordnet ist und die obere Platte (14) von oben abbildet;
    einen Temperatursensor (26A; 26B; 26C), der an der Unterseite der oberen Platte (14) angeordnet ist und eine Temperatur des Behälters (C) erfasst, der an der oberen Platte (14) angebracht ist; und
    eine Steuerung (50), die einen Zustand des Kochobjekts (T) in einem Inneren des Behälters (C) basierend auf einem aufgenommenen Bild der Kamera (30) und einer Erfassungstemperatur des Temperatursensors (26A; 26B; 26C) schätzt und die Ausgabe der Heizvorrichtung (16A; 16B; 16C) basierend auf einem Schätzergebnis steuert,
    dadurch gekennzeichnet, dass
    die Steuerung (50) dafür konfiguriert ist, eine Temperatur eines oberen Seitenabschnitts des Kochobjekts (T) basierend auf einem aufgenommenen Bild der Kamera (30) zu berechnen,
    wobei die Steuerung (50) dafür konfiguriert ist, einen Zustand des Kochobjekts (T) im Inneren des Behälters (C) basierend auf einer Differenz zwischen einer oberen Temperatur und einer unteren Temperatur, die die Temperaturdifferenz zwischen der berechneten Temperatur des oberen Seitenteils des Kochobjekts (T) und der Erfassungstemperatur des Temperatursensors (26A; 26B; 26C) ist, zu schätzen,
    und/oder dadurch, dass
    die Steuerung (50) dafür konfiguriert ist, eine Temperatur eines oberen Seitenabschnitts des Kochobjekts (T) basierend auf einem aufgenommenen Bild der Kamera (30) zu berechnen,
    wobei die Steuerung (50) dafür konfiguriert ist, eine Heizmenge an dem Kochobjekt (T) im Inneren des Behälters (C) basierend auf einer Änderung der berechneten Temperatur des oberen Seitenabschnitts des Kochobjekts (T) und einer Änderung der Erfassungstemperatur des Temperatursensors (26A; 26B; 26C) zu schätzen.
  2. Heizkocher (10) nach Anspruch 1,
    wobei die Steuerung (50) dafür konfiguriert ist, zu schätzen, dass eine Möglichkeit besteht, dass sich das Kochobjekt (T) in einem Zustand befindet, in dem ein unterer Seitenabschnitt des Kochobjekts (T) versengt ist, und dann eine Ausgabe der Heizvorrichtung (16A; 16B; 16C) verringert, wenn die berechnete Differenz zwischen der oberen Temperatur und der unteren Temperatur größer als eine vorbestimmte Temperaturdifferenz ist.
  3. Heizkocher (10) nach Anspruch 1 oder 2,
    wobei die Steuerung (50) dafür konfiguriert ist, basierend auf dem aufgenommenen Bild der Kamera (30) zu erfassen, dass das Kochobjekt (T) auf den Kopf gestellt ist, indem es von einem Benutzer umgedreht wird, und
    wobei die Steuerung (50) dafür konfiguriert ist, die Ausgabe der Heizvorrichtung (16A; 16B; 16C) zu verringern, wenn die Heizmenge an dem Kochobjekt (T) nach dem Erfassen des Umdrehens des Kochobjekts (T) im Wesentlichen mit der Heizmenge an dem Kochobjekt (T) vor dem Erfassen des Umdrehens des Kochobjekts (T) übereinstimmt.
  4. Heizkocher (10) nach einem der Ansprüche 1 bis 3, der ferner Folgendes umfasst:
    einen Benachrichtigungsabschnitt, der einen Benutzer über einen Zustand des Kochobjekts (T) benachrichtigt, der von der Steuerung (50) geschätzt wird.
EP16838758.7A 2015-08-27 2016-08-03 Kochvorrichtung Active EP3344007B1 (de)

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WO2017033406A1 (ja) 2017-03-02

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