JP7403044B2 - heating cooker - Google Patents

Description

The present disclosure relates to a heating cooker.

Conventionally, some microwave ovens have a radiant heating function and a steam heating function in addition to a microwave heating function. Such a heating cooker has a cooking menu suitable for the food to be heated, and performs heating suitable for the type of food to be heated (rice, milk, vegetables, etc.) selected by the cooking menu button. There are models that can do this.

In recent years, a heating cooking device has been proposed that has a camera placed in a heating chamber and automatically heats the object according to the type of the object specified by image recognition. With the conventional heating cooker described above, it is possible to automatically perform heating suitable for the object to be heated, without the user selecting the type of the object to be heated.

However, the above-mentioned conventional heating cooker cannot perform heating suitable for the object to be heated if the identification of the object to be heated through image recognition is inaccurate.

In order to solve this problem, the following heating cooker has been proposed (see, for example, Patent Document 1). The heating cooker described in Patent Document 1 extracts, for example, three candidates from a large number of candidates regarding the object to be heated based on the result of image recognition, and displays the candidates in order of their recognition certainty. The user selects one of the displayed candidates using a selection button or the like.

Thereby, even if the result of image recognition is not necessarily accurate, heating suitable for the object to be heated can be performed.

JP2014-202414A

The heating cooker described in Patent Document 1 selects from a large number of candidates for the object to be heated, even when there is no object to be heated in the heating chamber, or even when a foreign object (an object other than food such as a plate) is housed in the heating chamber. Extract and display several candidates.

In particular, when machine learning such as deep learning is used for image recognition, the heating cooker described in Patent Document 1 always selects a candidate object to be heated from a large number of candidates based on some degree of certainty. Extract and display candidates.

Therefore, the heating cooker described in Patent Document 1 may perform unnecessary heating or display unnecessary candidates every time.

The present disclosure provides a heating cooker that does not perform heating and does not display unnecessary candidates when no object to be heated is placed in the heating chamber or when a foreign object is placed in the heating chamber. With the goal.

A cooking device according to one aspect of the present disclosure includes a cooking section, a photographing section, an image recognition section, an adjustment section, and a display section. The heating cooking section heats the object to be heated.

The photographing unit photographs an image of the object to be heated. The image recognition unit performs image recognition on the image of the object to be heated, thereby extracting a plurality of candidates related to the object to be heated based on their likelihood. Further, the image recognition section determines that the object to be heated is not placed in the heating cooking section and that the object to be heated is a foreign object.

The adjustment unit adjusts the display order of the plurality of candidates extracted by the image recognition unit. The display section displays the plurality of candidates in the display order adjusted by the adjustment section. Furthermore, when the image recognition section determines that the object to be heated is not placed in the heating cooking section, or when the image recognition section determines that the object to be heated is a foreign object, the display section displays the object to be heated. Do not display suggestions for.

The heating cooker of this aspect can prevent unnecessary heating and display of unnecessary candidates when there is no object to be heated in the heating chamber or when a foreign object is placed in the heating chamber. can.

FIG. 1 is a block diagram showing the configuration of a cooking device according to an embodiment. FIG. 2 is a block diagram showing the configuration of a microwave oven with an oven function, which is a heating cooker according to an embodiment. FIG. 3 is a diagram showing an example of a candidate list stored in the candidate storage unit. FIG. 4 is a diagram showing an example of a selection history table stored in the history storage unit. FIG. 5 is a flowchart of cooking control in the heating cooker according to the embodiment. FIG. 6 is a flowchart of candidate extraction in cooking control. FIG. 7 is a diagram showing a first example of candidate extraction results. FIG. 8 is a diagram showing a second example of candidate extraction results. FIG. 9 is a diagram showing a third example of candidate extraction results. FIG. 10 is a flowchart for adjusting the display order in cooking control. FIG. 11 is a diagram showing an example of the display screen of the display unit in the cooking device according to the embodiment. FIG. 12 is a flowchart of saving selection history in cooking control. FIG. 13 is a block diagram showing the configuration of a heating cooker according to a first modification of the embodiment. FIG. 14 is a block diagram showing the configuration of a heating cooker according to a second modification of the embodiment. FIG. 15 is a block diagram showing the configuration of a heating cooker according to a third modification of the embodiment.

A cooking device according to a first aspect of the present disclosure includes a cooking section, a photographing section, an image recognition section, an adjustment section, and a display section. The heating cooking section heats the object to be heated.

The photographing unit photographs an image of the object to be heated. The image recognition unit performs image recognition on the image of the object to be heated, thereby extracting a plurality of candidates related to the object to be heated based on their likelihood. Further, the image recognition section determines that the object to be heated is not placed in the heating cooking section and that the object to be heated is a foreign object.

The adjustment unit adjusts the display order of the plurality of candidates extracted by the image recognition unit. The display section displays the plurality of candidates in the display order adjusted by the adjustment section. Furthermore, when the image recognition section determines that the object to be heated is not placed in the heating cooking section, or when the image recognition section determines that the object to be heated is a foreign object, the display section displays the object to be heated. Do not display suggestions for.

In the heating cooker according to the second aspect of the present disclosure, in addition to the first aspect, the image recognition unit is configured to perform a heating operation when a numerical value indicating the probability of the most probable candidate among the plurality of candidates is lower than a predetermined threshold value. , it is determined that the object to be heated is a foreign object.

In the cooking device of the third aspect of the present disclosure, in addition to the first aspect, the image recognition unit determines that the object to be heated is a foreign object when the most likely candidate among the plurality of candidates is a foreign object. judge.

The heating cooker according to the fourth aspect of the present disclosure further includes a presentation section in addition to the first aspect. When the image recognition section determines that the object to be heated is not placed in the cooking section, or when the image recognition section determines that the object to be heated is a foreign object, the presentation section selects candidates related to the object to be heated. is not extracted.

In the heating cooker according to the fifth aspect of the present disclosure, in addition to the fourth aspect, the presentation section is the display section. When the image recognition section determines that the object to be heated is not placed in the cooking section, or when the image recognition section determines that the object to be heated is a foreign object, the display section displays candidates related to the object to be heated. Displays a message that the file will not be extracted.

In the heating cooker according to the sixth aspect of the present disclosure, in addition to the fourth aspect, the presentation section is a speaker. When the image recognition section determines that the object to be heated is not placed in the heating cooking section, or when the image recognition section determines that the object to be heated is a foreign object, the speaker selects a candidate for the object to be heated. Outputs a sound indicating that it does not exist.

In addition to the first aspect, a heating cooker according to a seventh aspect of the present disclosure includes an operation unit configured to allow a user to select one candidate from among a plurality of candidates, and selection history information. The image forming apparatus further includes a history storage unit that stores the plurality of candidates and the one candidate in correspondence with each other. The adjustment unit determines the display order of the plurality of candidates based on the selection history information.

In addition to the seventh aspect, the heating cooker according to the eighth aspect of the present disclosure further includes a clock unit that measures the current time. The history storage unit stores, as selection history information, a selection time period in which the one candidate was selected and a selection frequency at which the one candidate was selected in the selection time period.

In the heating cooker according to the ninth aspect of the present disclosure, in addition to the seventh aspect, the history storage unit stores the display order of the plurality of candidates when the one candidate is selected.

In the heating cooker according to the tenth aspect of the present disclosure, in addition to the eighth aspect, the adjustment unit extracts selection history information having the same selection time period and the highest selection frequency from among the selection history information, The display order of the plurality of candidates is determined according to the extracted selection history information.

In the heating cooker according to the eleventh aspect of the present disclosure, in addition to the seventh aspect, the history storage section is provided in an external server.

In the heating cooking device according to the twelfth aspect of the present disclosure, in addition to the first aspect, the heating cooking section includes a heating chamber configured to accommodate an object to be heated.

In the heating cooking device according to the thirteenth aspect of the present disclosure, in addition to the first aspect, the heating cooking section includes a top plate configured to place an object to be heated, and a heating cooking section disposed below the top plate. It has an induction heating coil.

Embodiments of the present disclosure will be described below with reference to the drawings. The embodiment described below is a specific example of the present disclosure. The numerical values, configuration, processing contents of each step, order of steps, etc. shown in this embodiment are examples, and do not limit the present disclosure.

The configuration of the heating cooker 1 according to the present embodiment will be explained using FIGS. 1 and 2. FIG. 1 is a block diagram showing the configuration of a cooking device 1. As shown in FIG. As shown in FIG. 1, the cooking device 1 includes a cooking section 10, a photographing section 20, a control section 30, a storage section 40, an operation section 50, and a display section 60. The storage unit 40 includes a candidate storage unit 41 and a history storage unit 42.

FIG. 2 is a block diagram showing the configuration of a microwave oven with an oven function, which is the cooking device 1. As shown in FIG. As shown in FIG. 2, in the present embodiment, the cooking device 1 is a microwave oven with an oven function and a heating chamber 11. As shown in FIG.

The heating chamber 11 has an inner box 12a that partitions the heating chamber 11, and an outer box 12b that surrounds the inner box 12a. A door 13 is provided at the front of the heating chamber 11 so as to cover the front opening of the heating chamber 11.

The cooking section 10 has a magnetron (not shown) that oscillates microwaves, and has a microwave heating function that heats the object 2 housed in the heating chamber 11 using the microwaves. The cooking section 10 has a radiant heating function using a radiant heater 14 in addition to a microwave heating function.

The photographing unit 20 is a camera that photographs an image of the object to be heated 2 placed in the heating chamber 11 as, for example, a color still image. The photographing unit 20 includes an image sensor such as a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal-Oxide Semiconductor) image sensor. In this embodiment, the imaging unit 20 is provided at the upper part of the side wall of the inner box 12a.

The control section 30 is composed of a microcomputer and includes an image recognition section 31, an adjustment section 32, and a clock section 33.

The image recognition section 31 performs image recognition on the image photographed by the photographing section 20 to determine whether or not the object to be heated 2 is placed in the cooking section 10 . Image recognition in the image recognition unit 31 is performed using machine learning. Deep learning or artificial intelligence can be used as machine learning for image recognition.

Specifically, the image recognition unit 31 compares the image of the inside of the heating chamber 11 photographed by the photographing unit 20 with the image of the inside of the heating chamber 11 when the object to be heated 2 is not present in the heating chamber 11. By doing so, it is determined whether the object to be heated 2 is placed in the heating chamber 11 or not.

The image recognition unit 31 further performs image recognition on the image photographed by the photographing unit 20 to extract a plurality of candidates regarding the object to be heated 2 in order of likelihood.

Specifically, the image recognition section 31 recognizes the shape, tone, color, etc. of the object to be heated 2 from the image of the inside of the heating chamber 11 photographed by the photographing section 20 . The image recognition unit 31 compares this result with the candidate list stored in the candidate storage unit 41. The image recognition unit 31 extracts several candidates related to the object to be heated 2 in descending order of likelihood based on the correlation between the candidate images registered in the candidate list and the images photographed by the photographing unit 20. . In this embodiment, three candidates are extracted as extraction candidate C1, extraction candidate C2, and extraction candidate C3.

The certainty is expressed as a numerical value between 0% and 100%. The higher the numerical value indicating the likelihood, the higher the possibility that the candidate matches the object to be heated 2 placed in the heating chamber 11.

As shown in FIG. 3, the candidate list includes not only foods that can be candidates for the object to be heated 2, but also foreign objects that do not originally need to be heated, such as plates and plastic containers. That is, the candidate list also includes foreign objects as candidates for the object to be heated 2.

The candidate storage unit 41 stores candidates in the candidate list in advance as image data using machine learning or the like. For example, data regarding candidates in the candidate list is information including, for example, shape and color. The candidate storage unit 41 may store information obtained by performing machine learning again including information added later as candidates in the candidate list.

The image recognition unit 31 determines that the object to be heated 2 is a foreign object when the most likely candidate among the plurality of candidates extracted by comparing the image recognition result and the candidate list is a foreign object.

The image recognition unit 31 determines that the object to be heated 2 is a foreign object if the numerical value indicating the probability of the most probable candidate among the plurality of candidates extracted by image recognition is lower than a predetermined threshold. good.

When the image recognition unit 31 compares the image recognition result with the candidate list and determines that there is no candidate for the heated object 2 in the candidate list, it determines that the heated object 2 is a foreign object. Good too.

The adjustment unit 32 adjusts the display order of the plurality of candidates extracted by the image recognition unit 31. Specifically, the adjustment unit 32 determines the display order of the plurality of candidates based on the selection history information stored in the history storage unit 42.

The user uses the operation unit 50 to select one candidate from among the multiple candidates adjusted by the adjustment unit 32 and displayed on the display unit 60. The history storage unit 42 stores a plurality of past candidates extracted by the image recognition unit 31 and one candidate selected by the operation unit 50 in correspondence with each other as selection history information.

The operation unit 50 may be configured with mechanical buttons or may be configured with a touch panel. When a touch panel constitutes the operation section 50, this touch panel may constitute the display section 60. In this case, this touch panel constitutes an operation display section.

As shown in FIG. 4, the history storage unit 42 stores selection history information written in the selection history table. Specifically, the history storage unit 42 stores the display order of a plurality of candidates when one candidate (“selected object to be heated” shown in FIG. 4) is selected by the operation unit 50.

In this embodiment, the history storage section 42 stores the three candidates extracted by the image recognition section 31 as history candidates M1, M2, and M3. In addition to the history candidates M1, M2, and M3, the history storage unit 42 stores one candidate selected by the operation unit 50, the selected time period in which the selection was made, and the one candidate in the selected time period. The selection frequency is stored as selection history information.

The adjustment unit 32 extracts the selection history information having the same selection time period and the highest selection frequency from the selection history information, and determines the display order of the plurality of candidates according to the extracted selection history information.

The clock unit 33 measures the current time and identifies the selected time period in which one candidate was selected by the operation unit 50 based on the current time. The history storage unit 42 stores this selected time period.

The display unit 60 displays the plurality of candidates in the display order adjusted by the adjustment unit 32. The display section 60 is composed of a liquid crystal panel or the like. The display unit 60 displays the items selected by operating the cooking menu button and the like, the determined heating conditions (output, temperature, time, etc.), the cooking menu, and the settings of the heating cooker 1 based on the operation of the start button and the cancel button. It may also display the driving status, etc.

In the heating cooker 1 configured as described above, when the image recognition section 31 determines that the object to be heated 2 is not placed in the heating cooking section 10, or when the image recognition section 31 determines that the object to be heated 2 is When it is determined that it is a foreign object, the display section 60 functions as a presentation section. In this case, the display unit 60 does not display candidates related to the object to be heated 2, but instead displays a message indicating that no candidates related to the object to be heated 2 are extracted.

Next, cooking control in the heating cooker 1 will be explained. FIG. 5 is a flowchart of cooking control in the heating cooker 1. As shown in FIG. 5, for example, when the user presses the start button, the photographing section 20 photographs the inside of the heating chamber 11 in step S10, and the image recognition section 31 performs image recognition on this image. to determine whether the object to be heated 2 is placed in the heating chamber 11 or not.

More specifically, the storage unit 40 stores in advance an image of the inside of the heating chamber 11 when the object to be heated 2 is not present in the heating chamber 11 as a reference image. The image recognition unit 31 determines whether or not the object to be heated 2 is placed in the heating chamber 11 by comparing this reference image and an image inside the heating chamber 11 by image recognition.

As a result, if the image recognition section 31 determines that the object to be heated 2 is not placed in the cooking section 10 (NO in step S10), candidates regarding the object to be heated 2 are displayed on the display section 60. The cooking control ends without any change. That is, no cooking is performed. At this time, the display unit 60 displays a message indicating that the object to be heated 2 is not present in the heating chamber 11 . The display unit 60 may display a message indicating that no candidates related to the object to be heated 2 are extracted.

If the image recognition unit 31 determines that the object to be heated 2 is placed in the cooking unit 10 (YES in step S10), the image recognition unit 31 extracts candidates in step S20.

Here, extraction of candidates in step 20 will be explained using FIG. 6. FIG. 6 is a flowchart of candidate extraction in cooking control. As shown in FIG. 6, in order to extract candidates, in step S21, the image recognition section 31 performs image recognition on the image photographed by the photographing section 20, and selects a plurality of candidates regarding the object to be heated 2 with certainty. Extract based on.

Specifically, the image recognition unit 31 uses the image of the interior of the heating chamber 11 photographed by the photographing unit 20 and the candidate images registered in the candidate list (see FIG. 3) stored in the candidate storage unit 41. Compare with. As a result of comparing the two images, the image recognition unit 31 recognizes a candidate with a higher correlation as a more likely candidate. The image recognition unit 31 extracts a plurality of candidates regarding the object to be heated 2 based on their certainty.

In step S22, the image recognition unit 31 sets the top three candidates in the order of likelihood as extraction candidates C1, C2, and C3. FIG. 7 shows an example of the extraction results. In the example shown in FIG. 7, asparagus, spinach, and broccoli are extracted as extraction candidates C1, C2, and C3, respectively.

Returning to FIG. 5, after extracting the candidates in step S20, in step S30, the image recognition unit 31 determines whether the object to be heated 2 is a foreign object.

Specifically, among the plurality of candidates (extraction candidates C1, C2, C3) extracted in step S20, the most probable candidate (extraction candidate C1) is not a foreign object, and the probability of the most probable candidate is When the indicated numerical value is greater than or equal to a predetermined threshold, the image recognition unit 31 determines that the object to be heated 2 is not a foreign object. This threshold value is, for example, 40%.

As shown in FIG. 7, for example, if the extraction candidate C1 is asparagus and not a foreign substance, and the numerical value (99.8%) indicating the certainty of the extraction candidate C1 exceeds a predetermined threshold value (40%). If so, the image recognition unit 31 determines that the extraction candidate C1 is not a foreign object.

As shown in FIG. 8, when the extraction candidate C1 is a plate, the image recognition unit 31 determines that the object to be heated 2 is a foreign object.

When the numerical value indicating the certainty of the extraction candidate C1 is lower than a predetermined threshold value, the image recognition unit 31 determines that the object to be heated 2 is a foreign object. As shown in FIG. 9, for example, even if extraction candidate C1 is an eggplant, if the numerical value (30.5%) indicating the probability of extraction candidate C1 is lower than a predetermined threshold (40%), image recognition The unit 31 determines that the extraction candidate C1 is a foreign object.

In this way, when it is determined that the object to be heated 2 is a foreign object (YES in step S30), the cooking control ends without any candidates related to the object to be heated 2 being displayed on the display section 60. That is, no cooking is performed. At this time, the display section 60 displays a message that the object to be heated 2 is not a food material but a foreign object. The display unit 60 may display a message indicating that no candidates related to the object to be heated 2 are extracted.

If it is determined that the heated object 2 is not a foreign object (NO in step S30), in step S40, the adjustment unit 32 adjusts the display order of the plurality of candidates regarding the heated object 2 extracted by the image recognition unit 31. Adjust.

Here, adjustment of the display order in step S40 will be explained using FIG. 10. FIG. 10 is a flowchart for adjusting the display order in cooking control. As shown in FIG. 10, in step S41, the adjustment unit 32 reads the selection history table (see FIG. 4) from the history storage unit 42 in order to adjust the display order.

In step S42, the adjustment unit 32 determines that there is a row in the selection history table in which the history candidates M1, M2, and M3 are the same as the extraction candidates C1, C2, and C3, respectively, and the current time is included in the selected time period. Determine whether or not.

If YES in step S42, in step S43, the adjustment unit 32 extracts the "selected heated object" in the row with the highest selection frequency in the selection history table. In step S44, the adjustment unit 32 sets the "selected object to be heated" as the display candidate D1, and sets the other two candidates in the row as display candidates D2 and D3 in order of likelihood. This completes the display order adjustment.

If NO in step S42, the adjustment unit 32 sets extraction candidates C1, C2, and C3 as display candidates D1, D2, and D3 in step S45. This completes the display order adjustment.

Returning to FIG. 5, after adjusting the display order, in step S50, the display unit 60 displays a plurality of candidates regarding the object to be heated 2 in the display order adjusted by the adjustment unit 32. Specifically, display candidates D1, D2, and D3 are displayed on the display section 60.

For example, as shown in FIG. 7, if asparagus, spinach, and broccoli are extracted as extraction candidates C1, C2, and C3, and set as display candidates D1, D2, and D3, respectively, the display section 60 will be displayed as shown in FIG. to be displayed. As shown in FIG. 11, the display unit 60 displays photographs and names of asparagus, spinach, and broccoli in the order of numerical values indicating certainty.

Returning to FIG. 5, after displaying the candidates, in step S60, the control unit 30 determines whether the type of the object to be heated 2 has been determined. Specifically, the user operates the operation unit 50 to select one candidate from a plurality of candidates related to the object to be heated 2 displayed on the display unit 60. In response to this selection, the control unit 30 determines that the type of the object to be heated 2 has been determined.

If the type of the object to be heated 2 has been determined (YES in step S60), the control unit 30 stores the selection history in step S70. While the type of the object to be heated 2 is not determined (NO in step S60), the process of step S60 is repeated.

Here, the saving of the selection history in step S70 will be explained using FIG. 12. FIG. 12 is a flowchart of saving selection history in cooking control. As shown in FIG. 12, in step S71, the control unit 30 reads the selection history table (see FIG. 4) from the history storage unit 42 in order to save the selection history.

In step S72, the control unit 30 determines that there is a row in the selection history table in which the history candidates M1, M2, and M3 are the same as the extraction candidates C1, C2, and C3, respectively, and the current time is included in the selected time period. Determine whether or not.

If YES in step S72, in step S73, the control unit 30 increases the numerical value indicating the selection frequency of that row by one.

If NO in step S72, the control unit 30 adds a new row to the selection history table and sets an initial value in the row. Specifically, history candidates M1, M2, and M3 are set as extraction candidates C1, C2, and C3, respectively. The "selected object to be heated" is set to the type of object to be heated selected by the user. The selected time period is set based on the current time. The selection frequency is set to 1. This completes the cooking control in the heating cooker 1.

In the present embodiment, when the image recognition section 31 determines that the object to be heated 2 is not placed in the heating cooking section 10, or when the image recognition section 31 determines that the object to be heated 2 is a foreign object. In this case, the display unit 60 does not display candidates regarding the object to be heated 2.

This can prevent unnecessary heating from being performed and unnecessary candidates from being displayed each time.

In the present embodiment, when the image recognition section 31 determines that the object to be heated 2 is not placed in the heating cooking section 10, or when the image recognition section 31 determines that the object to be heated 2 is a foreign object. In this case, the display unit 60 displays a message indicating that no candidates related to the object to be heated 2 are extracted. This allows the user to easily recognize the current situation.

(First modification)
FIG. 13 is a block diagram showing the configuration of a heating cooker 1A according to a first modification of the present embodiment.

In this modification, unlike the embodiment described above, the storage unit 40 is provided in an external server 100. The cooking device 1A communicates with the server 100 via a communication line such as the Internet, and reads and writes information stored in the storage unit 40.

This modification has the same configuration as the above embodiment except for the storage unit 40, and produces the same effects as the above embodiment.

(Second modification)
FIG. 14 is a block diagram showing the configuration of a heating cooker 1B according to a second modification of the present embodiment.

As shown in FIG. 14, the cooking device 1B further includes a speaker 70 in addition to the configuration of the above embodiment. In this modification, the speaker 70 constitutes a presentation section together with the display section 60.

That is, the heating cooker 1B notifies the user by voice using the speaker 70 that no candidates related to the object to be heated 2 are extracted. For example, the speaker 70 outputs a sound indicating that there is no object to be heated in the heating chamber 11 or a sound indicating that the object to be heated 2 is not a food material but a foreign object.

This modification has the same configuration as the above embodiment except for the speaker 70, and produces the same effects as the above embodiment.

(Third modification)
FIG. 15 is a block diagram showing the configuration of a cooking device 1C according to a third modification of the present embodiment. The heating cooker 1C of this modification is a kitchen equipped with an IH (Induction Heating) cooking heater.

As shown in FIG. 15, the cooking device 1C includes a cooking section 10C, a photographing section 20, a control section 30, a storage section 40, an operation section 50, a display section 60, and a range hood 80. . The heating cooking section 10C includes a top plate 15 on which the object to be heated 2 is placed, and an induction heating coil 16 arranged below the top plate 15. In FIG. 15, a kettle and a frying pan, which are objects to be heated 2, are placed on a top plate 15.

The photographing unit 20 is arranged in the range hood 80 and photographs the object to be heated 2 placed on the top plate 15. The display section 60 is arranged on the front side of the top plate 15.

This modification has the same configuration as the above embodiment except for the heating cooking section 10C, and produces the same effects as the above embodiment.

(Other variations)
Although the present disclosure has been described above based on the embodiments, the present disclosure is not limited to the above embodiments.

For example, in the embodiment described above, the display section 60 displays three candidates for the object to be heated 2. However, the present disclosure is not limited thereto. The display unit 60 may display one, two, or four or more candidates for the object to be heated 2.

As described above, in this embodiment, the control section 30 is configured with a microcomputer. The control unit 30 is not limited to a microcomputer. However, if a programmable microcomputer is used, the processing contents can be easily changed and the degree of freedom in design can be increased.

In order to improve processing speed, it is also possible to configure the control section 30 with a logic circuit. The control unit 30 may be composed of one or more elements. When the control unit 30 is composed of a plurality of elements, each control item may be implemented by these plurality of elements. In this case, these multiple elements can be considered to correspond to one control section.

The present disclosure is applicable to cooking devices such as microwave ovens, IH cooking heaters, and rice cookers.

1, 1A, 1B, 1C Cooking device 2 Object to be heated 10, 10C Cooking section 11 Heating chamber 12a Inner box 12b Outer box 13 Door 14 Radiant heater 15 Top plate 16 Induction heating coil 20 Photographing section 30 Control section 31 Image recognition Section 32 Adjustment section 33 Clock section 40 Storage section 41 Candidate storage section 42 History storage section 50 Operation section 60 Display section 70 Speaker 80 Range hood 100 Server

Claims (12)

a heating cooking section configured to heat an object to be heated;
a photographing section configured to photograph an image of the object to be heated;
a candidate storage unit storing a list of candidates for comparison with the image of the object to be heated;
Image recognition is performed on the image of the object to be heated, and based on the probability derived from the correlation obtained by comparing the image recognition result and the candidate images registered in the candidate list, an image recognition unit configured to extract a plurality of candidates related to an object, and configured to determine that the object to be heated is a foreign object based on the certainty;
an adjustment unit configured to adjust the display order of the plurality of candidates extracted by the image recognition unit;
The image recognition unit is configured to display the plurality of candidates in the display order adjusted by the adjustment unit, and the image recognition unit is configured to display a numerical value indicating the likelihood of the most likely candidate among the plurality of candidates. If it is lower than a predetermined threshold, determining that the object to be heated is a foreign object;
Heating cooker. the image recognition unit determines that the object to be heated is a foreign object when the most likely candidate among the plurality of candidates is a foreign object;
The heating cooker according to claim 1. Further comprising a presentation section,
When the image recognition section determines that the object to be heated is not placed in the heating cooking section, or when the image recognition section determines that the object to be heated is a foreign object, the presentation section , presenting that candidates related to the object to be heated are not extracted;
The heating cooker according to claim 1. The presentation section is a display section,
When the image recognition section determines that the object to be heated is not placed in the heating cooking section, or when the image recognition section determines that the object to be heated is a foreign object, the display section , displaying a message indicating that no candidates related to the object to be heated are extracted;
The heating cooker according to claim 3. the presentation unit is a speaker,
When the image recognition section determines that the object to be heated is not placed in the heating cooking section, or when the image recognition section determines that the object to be heated is a foreign object, the speaker outputting a sound indicating that there are no candidates related to the object to be heated;
The heating cooker according to claim 3. an operation unit for a user to select one candidate from the plurality of candidates;
further comprising a history storage unit that stores the plurality of candidates and the one candidate in correspondence as selection history information,
The adjustment unit determines the display order of the plurality of candidates based on the selection history information.
The heating cooker according to claim 1. It further includes a clock section that measures the current time,
The history storage unit stores, as the selection history information, a selection time period in which the one candidate is selected and a selection frequency in which the one candidate is selected in the selection time period.
The heating cooker according to claim 6. the history storage unit stores the display order of the plurality of candidates when the one candidate is selected;
The heating cooker according to claim 6. The adjustment unit extracts the selection history information having the same selection time period and the highest selection frequency from the selection history information, and selects the selection history information of the plurality of candidates according to the extracted selection history information. determine the display order,
The heating cooker according to claim 7. the history storage unit is provided in an external server;
The heating cooker according to claim 6. The heating cooking section has a heating chamber for accommodating the object to be heated.
The heating cooker according to claim 1. The heating cooking section includes a top plate on which the object to be heated is placed, and an induction heating coil disposed below the top plate.
The heating cooker according to claim 1.

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