JPWO2018100956A1 - Heating cooker and control method of heating cooker - Google Patents

Abstract

A heating cooker, a heating chamber (12), a camera (15) that captures an image of the inside of the heating chamber (12), a storage unit (103) that stores an image captured by the camera (15), and a heating chamber (12) When the object to be heated is placed in, a door that is opened and closed and a detection unit (104) that detects opening and closing of the door are provided. And the recognition part (102) which acquires the heating control information regarding a to-be-heated object from the image memorize | stored in the memory | storage part (103) is provided. The detection unit (104) is configured to detect a predetermined timing width before the door is closed, and the recognition unit (102) is configured to detect a predetermined timing width from the images stored in the storage unit (103). The heating control information is acquired by selecting an image taken in step S2.

Description

  The present disclosure relates to a heating cooker that heats food and a control method of the heating cooker.

  A microwave oven, which is an example of a heating cooker, can heat a food item in a container without using a pan and a frying pan. For this reason, a store such as a convenience store sometimes uses a microwave oven to heat and provide food such as lunch boxes and side dishes.

  Usually, a lunch box and a side dish display the optimum heating time for heating in a microwave oven. It is common for a salesclerk at a sales store to set the heating time with a microwave oven by looking at the display.

  Specifically, the store clerk can set the heating time by operating the numeric keys arranged on the operation unit of the microwave oven. Moreover, when using the microwave oven provided with two or more cooking buttons corresponding to heating time and wattage, the salesclerk can perform the heating suitable for the foodstuff by operating the button corresponding to the foodstuff to heat. .

  However, there is a problem that the operation is troublesome to set the heating time with the numeric keys. Further, in a microwave oven in which different food heating times are assigned to a plurality of operation buttons, a store clerk needs to remember the correspondence between each of the plurality of buttons and the food. Therefore, there is a problem that as the number of products increases, the burden on the store clerk to remember this correspondence increases.

  In order to solve such a problem, it is conceivable to provide a microwave oven that heats the product with the heating control content corresponding to the barcode when the store clerk reads the information on the barcode attached to the product.

  Alternatively, a camera that shoots the inside of the heating chamber of the microwave oven is provided on the ceiling of the chamber, and the barcode part is extracted from the image of the product placed in the chamber, and the barcode is read to convert the code information into the product. A technique for performing appropriate heating by calling the corresponding heating control content is also disclosed (for example, Patent Document 1).

  In such a microwave oven, in order to ensure that the food subject to recognition and the food subject to actual cooking are the same, it is necessary to shoot after closing the microwave door. It is necessary to perform recognition. Further, in order to obtain a stable photographed image without blurring, it is preferable to perform photographing and recognition processing after the door is closed, which guarantees the stationary state of the food to be recognized.

  However, when the door of the microwave oven is closed, the entire range may vibrate due to an impact at the time of contact between the door portion and the heating cabinet case. In this case, if the photographing is started before the vibration is settled, the photographed image is blurred. To obtain a shake-free photographed image suitable for recognition, it is only necessary to start photographing and recognition processing after waiting for the vibration to stop, but this causes a time loss.

JP 2001-349546 A

  In the present disclosure, when an object to be heated such as a lunch box or a prepared dish is placed in a heating chamber and the door is closed, vibration occurs due to an impact when the door contacts the casing of the heating chamber. In addition, the present invention provides a heating cooker and a control method thereof that can improve recognition accuracy and prevent time loss such that photographing and recognition cannot be started until vibration is reduced.

  The heating cooker of the present disclosure includes a heating chamber, an imaging unit that captures an image of the inside of the heating chamber, a storage unit that stores an image captured by the imaging unit, and an object to be heated placed in the heating chamber. A door that is opened and closed, a detection unit that detects opening and closing of the door, and a recognition unit that acquires heating control information related to the object to be heated from an image stored in the storage unit. The detection unit is configured to detect a predetermined timing width before the door is closed, and the recognition unit selects an image captured within the predetermined timing width from the images stored in the storage unit. And heating control information is obtained.

  Further, the control method of the heating cooker of the present disclosure includes a heating chamber, a photographing unit that images the inside of the heating chamber, a door that is opened and closed when placing an object to be heated in the heating chamber, It is a control method of a heating cooker provided with the detection part which detects opening and closing. Then, a predetermined timing width before the door is closed is detected, and an image photographed in the predetermined timing width is selected from images in the heating chamber photographed by the photographing unit, and the object to be heated is selected. It is a control method of the heating cooker which acquires heating control information.

  According to the present disclosure, when an object to be heated such as a lunch box and a prepared dish is placed in a heating chamber and the door is closed, vibration is caused by an impact at the time of contact between the door and the casing of the heating chamber. Even if it occurs, recognition processing is performed using a captured image in the heating chamber that was captured before the vibration occurred. As a result, the recognition accuracy can be increased, and a time loss such that the photographing and recognition cannot be started until the vibration is stopped can be prevented.

FIG. 1 is a perspective view showing the appearance of a microwave oven that is a typical cooking device according to the present embodiment. FIG. 2 is a diagram illustrating a schematic configuration of the microwave oven according to the first embodiment of the present disclosure. FIG. 3 is a diagram illustrating an example of a sticker attached to food in the first embodiment of the present disclosure. FIG. 4 is a flowchart illustrating the operation of the microwave oven according to the first embodiment of the present disclosure. FIG. 5 is a flowchart illustrating an operation of the microwave oven 1 according to the second embodiment of the present disclosure. FIG. 6 is a diagram illustrating a configuration of a heat cooking system according to another embodiment of the present disclosure. FIG. 7 is a diagram illustrating another configuration of the cooking system according to another embodiment of the present disclosure. FIG. 8 is a diagram illustrating still another configuration of the cooking system according to another embodiment of the present disclosure.

(Example of aspects that the present disclosure can take)
The heating cooker according to the first aspect of the present disclosure includes a heating chamber, an imaging unit that images the inside of the heating chamber, a storage unit that stores an image captured by the imaging unit, and an object to be heated in the heating chamber. When placing, a door that is opened and closed, a detection unit that detects opening and closing of the door, and a recognition unit that acquires heating control information related to the object to be heated from an image stored in the storage unit. . The detection unit is configured to detect a predetermined timing width before the door is closed, and the recognition unit selects an image captured within the predetermined timing width from the images stored in the storage unit. And heating control information is obtained.

  With this configuration, it is possible to acquire a blur-free image before being affected by the vibration caused by the impact when the door is closed, and to perform recognition processing using that image, so that the recognition accuracy can be improved and vibration is not generated. It is possible to prevent time loss such that shooting and recognition cannot be started until they are settled.

  According to a second aspect of the present disclosure, in the first aspect, the switch that detects that the door is closed and the distance between the door and the casing of the heating chamber are detected to be equal to or less than a predetermined distance. And a proximity sensor. The detection unit is configured to have a predetermined timing width after the detection timing by the proximity sensor and before the detection timing by the switch.

  In addition, according to this configuration, the door is predetermined with respect to the casing of the heating chamber from the images taken before the door is closed, regardless of operational variations such as the speed at which the user closes the door. It is possible to specify an image that has been photographed with a timing width that is close to a distance less than or equal to a distance close to the distance of.

  According to a third aspect of the present disclosure, in the first aspect, the detection unit calculates a difference between the plurality of images with respect to the plurality of temporally continuous images stored in the storage unit. By doing so, it is configured to detect a timing width in which a change in the illuminance environment in the heating chamber is stable, and to set the detected timing width as a predetermined timing width.

  According to this configuration, a stable image with little influence of external light can be selected as a candidate image from among the captured images in the heating chamber.

  According to a fourth aspect of the present disclosure, in any aspect from the first aspect to the third aspect, the recognition unit is heated using a plurality of images that are stored in the storage unit and photographed at different timings. It is configured to obtain control information.

  According to this configuration, the recognition unit further performs recognition processing on each of the plurality of candidate images and takes the consistency of the recognition results, so that the recognition accuracy can be improved. Further, even when the recognition unit fails to recognize an image, recovery can be achieved by performing recognition using another candidate image.

  According to a fifth aspect of the present disclosure, a heating chamber, a photographing unit that captures an image of the inside of the heating chamber, a door that is opened and closed when an object to be heated is placed in the heating chamber, and the opening and closing of the door are detected. It is a control method of a heating cooker provided with a detection part. Then, a predetermined timing width before the door is closed is detected, and an image photographed in the predetermined timing width is selected from images in the heating chamber photographed by the photographing unit, and the object to be heated is selected. It is a control method of the heating cooker which acquires heating control information.

  By this method, it is possible to acquire a blur-free image before it is affected by the vibration caused by the impact when the door is closed, and the recognition process is performed using the image. It is possible to prevent time loss such that shooting and recognition cannot be started until they are settled.

  Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings as appropriate. However, more detailed explanation than necessary may be omitted. For example, detailed descriptions of already well-known matters and redundant descriptions of substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art.

  The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the claimed subject matter.

(First embodiment)
FIG. 1 is a perspective view showing an appearance of a microwave oven 1 that is a typical cooking device according to the present embodiment.

  A microwave oven 1 shown in FIG. 1 includes a housing 2 and a door 3 that is pivotally supported by the housing 2 so as to be opened and closed.

  The door 3 has a transparent glass window 4 so that the user can see the inside of the housing 2. Furthermore, the door 3 has a handle 5 so that the user can easily grasp the door 3.

  Next to the door 3, an operation display unit 6 is arranged. The operation display unit 6 includes a liquid crystal display 7, a time setting button group 8, a heating start button 9, a cancel button 10, and a pause button 11.

  The microwave oven 1 according to the present embodiment captures a product that is an object to be heated, recognizes a heating control method displayed on the product, and heats the product using the heating control method. For this reason, the recognized heating control method (for example, heating time and wattage) is displayed on the liquid crystal display 7.

  However, there may be a case where the microwave oven 1 cannot correctly recognize the heating control method and a product for which the heating time is not displayed.

  For this reason, the microwave oven 1 of the present embodiment has a time setting button group 8.

  The user can set the heating time by using the numeric buttons and the minute and second buttons of the time setting button group 8. At this time, the liquid crystal display 7 displays the set heating time and the like.

  The heating start button 9 is a button for the user to start heating after confirming the heating time, wattage, and the like with the liquid crystal display 7. The cancel button 10 is a button for pressing the heating start button 9 to stop heating after starting heating, or canceling the setting of the heating time displayed on the liquid crystal display 7.

  The pause button 11 is a button for temporarily stopping heating during heating. After the heating is temporarily stopped, the user can press the heating start button 9 again to perform the remaining heating from the middle.

  FIG. 2 is a diagram illustrating a schematic configuration of the microwave oven 1 according to the first embodiment of the present disclosure.

  The microwave oven 1 includes two magnetrons 13a and 13b that output microwaves in a heating chamber 12 that stores food 14 and the like. The heating cabinet 12 is provided inside the housing 2.

  The magnetron 13a is disposed on the ceiling side of the heating chamber 12 and outputs a microwave into the heating chamber 12 from above. On the other hand, the magnetron 13 b is disposed on the bottom side of the heating chamber 12, and outputs a microwave into the heating chamber 12 from below.

  A camera 15 (an example of a photographing unit) is disposed on the ceiling side of the heating chamber 12. The camera 15 includes, for example, an image sensor such as a CCD (Charge Coupled Device) and an optical element such as a lens, and photographs the inside of the heating chamber 12.

  When the camera 15 captures food in the heating chamber 12, it is more accurate to capture the barcodes and characters on the food surface when the food is photographed from directly above than when the food is photographed obliquely. Is possible.

  In addition, when the microwave is applied to the camera 15, the camera 15 is damaged. When the food is heated, a shutter that can be opened and closed is provided in front of the camera 15 so that the camera 15 is not exposed in the heating chamber 12. You may arrange. Moreover, when heating food, it is good also as a structure which moves the camera 15 (for example, rotation etc.) so that the camera 15 may not be exposed in the heating chamber 12. FIG.

  The switch 16a is a switch for detecting opening and closing of the door 3. The switch 16 a is provided in the housing 2. A protrusion is provided on the back surface of the handle 5 of the door 3, and the switch 16 a detects that the protrusion has contacted the recess of the housing 2. The switch 16a is not limited to the above-described form, and any form may be used as long as the opening / closing of the door 3 can be detected.

  The proximity sensor 16b is a sensor for detecting that the door 3 has approached the housing 2 of the heating chamber 12 within a predetermined distance, that is, the door 3 is in a closed state.

  The control unit 100 controls each circuit of the microwave oven 1 and includes a microcomputer such as a CPU (Central Processing Unit), for example.

  The control unit 100 includes a heating control unit 101, a recognition unit 102, a storage unit 103, and a detection unit 104.

  In other words, the control unit 100 can also execute the functions of the heating control unit 101, the recognition unit 102, the storage unit 103, and the detection unit 104.

  In this embodiment, the heating control unit 101, the recognition unit 102, the storage unit 103, and the detection unit 104 are arranged in the control unit 100. However, these configurations are realized by separate semiconductor elements. May be. Alternatively, a part of the configuration of the heating control unit 101, the recognition unit 102, the storage unit 103, and the detection unit 104 may be arranged in the control unit 100, and the other configuration may be arranged outside the control unit 100. .

  The control unit 100 may be in any form as long as it performs control to be described later. The control unit 100 may include an arithmetic processing unit and a storage unit that stores a control program. Examples of the arithmetic processing unit include an MPU (Micro Processing Unit) and a CPU (Central Processing Unit). A memory is exemplified as the storage unit. The control program recorded in the storage unit is executed by the arithmetic processing unit. In this case, the storage unit may be shared with or provided separately from the storage unit 103 described above.

  Further, the control unit 100 may be configured with hard logic. If the control unit 100 is configured by hard logic, it is effective in improving the processing speed. The control unit 100 may be composed of one semiconductor chip or physically composed of a plurality of semiconductor chips. When configured by a plurality of semiconductor chips, each control described later can be realized by a separate semiconductor chip.

  The heating control unit 101 controls the magnetron 13a and the magnetron 13b. Thereby, a to-be-heated target object is heated.

  The recognition unit 102 recognizes an object such as food and also recognizes a barcode and characters attached to the food from the image captured by the camera 15.

  The storage unit 103 continuously stores images taken by the camera 15.

  The detection unit 104 detects the door open / close state by the switch 16a and the proximity sensor 16b. Moreover, the detection part 104 may detect the state of the illuminance environment in the heating chamber 12 from the captured image in the heating chamber 12 captured by the camera 15.

  FIG. 3 is a diagram illustrating an example of the seal 17 attached to the food according to the first embodiment of the present disclosure.

  In the heating chamber 12, merchandise that is an object to be heated, such as a lunch box, a rice ball, and a side dish, is placed and heated. A sticker 17 displaying heating power, heating time, and the like necessary for cooking the product described above is affixed to those products.

  In addition, the information for performing cooking including the heating power and the heating time is referred to as heating control information in the present embodiment.

  On the seal 17, various information including a product name 18, heating control information 19, money amount information 20, expiry date information 21, a barcode 22 specifying the product, nutrition information 23, and notification information 24 is displayed. In the present embodiment, the heating control information 19 is surrounded by a square frame 25 so that the heating control information can be easily extracted from these pieces of information.

  In addition, the seal 17 has a heating time when heating at 500 W, for example, as a standard heating time when heating in a general microwave oven for home use, and when heating at high power for a short time for business use. As a reference heating time, for example, the heating time when heating at 1500 W is also shown.

  In the example of FIG. 3, the heating control information 19 is displayed as, for example, “500 W 2 minutes 00 seconds 1500 W 0 minutes 40 seconds”.

  When the user opens the door 3 and puts food, the camera 15 takes a picture inside the heating chamber 12. And the recognition part 102 recognizes the location where this heating control information 19 is displayed from the image image | photographed with the camera 15, and recognizes the character and number of this heating control information 19. FIG.

  Specifically, the recognition unit 102 first recognizes the square frame 25 from an image captured by the camera 15.

  Next, the recognizing unit 102 recognizes an alphanumeric character enclosed by the square frame 25, specifically, a character string “500W200 1500W040”.

  Then, according to a predetermined analysis rule, the recognition unit 102 recognizes the numeric string up to “W”, the 3-digit numeric string after “W”, the subsequent numeric string up to “W”, and “W”. Are broken down into three digit numbers, resulting in “500”, “200”, “1500”, and “040”.

  Further, the recognition unit 102 recognizes the first one-digit number as “minute” and the subsequent two-digit number as “second” for the second number string and the fourth number string. The recognition unit 102 corresponds to the heating power of the first number string and the time of the second number string, and corresponds to the heating power of the third number string and the time of the fourth number string. And two kinds of heating control information “500W for 2 minutes” and “1500W for 40 seconds” are recognized.

  FIG. 4 is a flowchart illustrating the operation of the microwave oven 1 according to the first embodiment of the present disclosure.

  In FIG. 4, first, in step S <b> 1, the detection unit 104 determines whether the door 3 is opened by turning on (or turning off) the switch 16 a. When the detection unit 104 determines that the door 3 is opened (S1, Yes), the process proceeds to step S2. The detection unit 104 repeats step S1 until the door 3 is opened (S1, NO).

  In step S <b> 2, the control unit 100 controls the camera 15 to shoot the inside of the heating chamber 12 and continuously stores the captured images in the storage unit 103.

  In step S3, the detection unit 104 determines whether the door 3 is closed by turning off (or turning on) the switch 16a. If the detection unit 104 determines that the door 3 is closed (S3, Yes), it interrupts shooting and proceeds to step S4. The detection unit 104 repeats step S3 until the door 3 is closed (S3, NO). Until the door 3 is closed, photographing inside the heating chamber 12 by the camera 15 is continuously performed.

  In step S <b> 4, the control unit 100 selects a candidate image suitable for recognition processing from the images stored in the storage unit 103. Here, the control unit 100 recognizes a captured image in the heating chamber 12 that is captured within a time of 200 milliseconds (within a predetermined timing width) before the door 3 is closed, which is detected by the detection unit 104. Is selected as a suitable candidate image. For example, the control unit 100 captures 6 frames when captured by the camera 15 capable of capturing at 30 frames / second, and 2 frames when captured by the camera 15 capable of capturing at 10 frames / second, respectively. Select as a candidate image.

  The time of the candidate image selection timing width is not limited to 200 milliseconds before the door 3 is closed, for example, before the timing, but may be a value of about 100 to 300 milliseconds. Moreover, since the speed at which the door 3 is closed varies depending on the user, a different time may be set according to the user.

  This predetermined timing width is desirably set to a timing width that is less susceptible to the influence of external light before an impact occurs when the door 3 is closed.

  In the method of the present embodiment, since the front surface (transparent glass window 4) of the microwave oven 1 is covered with a punching metal for preventing electromagnetic waves, this functions as a light shielding portion, and the heating chamber 12 is closed with the door 3 closed. It is effective because the illuminance inside is stable.

  Here, as another means for defining the timing width immediately before the door 3 is closed, the detection unit 104 uses a proximity sensor 16b (for example, a magnetic sensor), and the door 3 is 5 cm from the housing of the heating chamber 12. Images taken between the timing when the proximity of the distance is detected and the timing when the detection unit 104 determines that the door 3 is closed by the switch 16a may be selected as a candidate image.

  As described above, by using the proximity sensor 16b and the switch 16a in combination, the predetermined timing width in which the influence of the external light is stabilized can be determined with higher accuracy. In addition, the timing width can be determined with an accuracy that is not problematic for practical use. Further, as described later, even when neither the proximity sensor 16b nor the switch 16a is provided, the predetermined timing width can be determined.

  Note that the distance between the door 3 and the housing is not limited to 5 cm described above, and may be a value of about 3 to 7 cm. Moreover, since the speed which closes the door 3 changes with a user, according to a user, you may set a different distance.

  Moreover, the detection part 104 calculates the difference of the image before and behind with respect to the several image in the heating chamber 12 continuously image | photographed with the camera 15, and the timing when the change of the illumination environment in the heating chamber 12 was stabilized was carried out. An image captured from that timing to a timing when the detection unit 104 determines that the door 3 is closed by the switch 16a may be selected as a candidate image as an image captured in a stable illuminance environment. . In this case, candidate images can be narrowed down to improve recognition accuracy.

  Here, the stability of the illuminance environment is determined based on 90% of the amount of change in luminance from when the door 3 is opened to when the door 3 is closed with reference to the maximum photographing luminance in the heating chamber 12 taken by the camera 15. When the value exceeds the value, it is determined that the influence of external light has decreased, and thus it has been stabilized.

  After selecting candidate images to be used for recognition by the various methods described above, the process proceeds to step S5.

  In step S5, the control unit 100 recognizes a character string using one or a plurality of candidate images photographed by the camera 15 and stored in the storage unit 103, recognizes the heating control information, and proceeds to step S6. Proceed with the process.

  In step S6, the recognition result for one candidate image or a plurality of candidate images obtained in step S5, that is, the consistency of the heating control information is confirmed, and the final heating condition is output.

  For example, if the recognition results for two candidate images are “500 W 2 minutes 1500 W 40 seconds” and “500 W 2 minutes 1500 W 10 seconds”, the recognition results do not match, so it is assumed that either heating information is incorrect. The process is terminated without performing the control (S6, NO). When the recognition result is obtained by performing recognition with one candidate image, or when the recognition results for a plurality of candidate images match, it is regarded as a recognition success (consistency) (S6, YES), The process proceeds to step S7.

  In this way, when there are a plurality of candidate images to be recognized, the control unit 100 confirms the consistency of the recognition results for the plurality of candidate images, so that heating based on incorrect heating control information is performed. Can be prevented. When checking the consistency, it may be confirmed that the recognition results match all of the plurality of candidate images, or may be determined to be a correct recognition result by matching not less than a predetermined number of recognition results. .

  In step S <b> 7, the control unit 100 sets the heating time for cooking (for example, 40 seconds) suitable for the heating power of the microwave oven 1 to the liquid crystal display 7 among the heating control information recognized by the recognition unit 102. Display.

  In step S8, the control unit 100 determines whether or not the heating start button 9 has been pressed. If it is determined that the heating start button 9 has been pressed (S8, YES), the process proceeds to step S9, and the heating control unit 101 controls the magnetrons 13a and 13b to start heating the object to be heated (S9). ). The control unit 100 repeats step S8 until the heating start button 9 is pressed (S8, NO).

  Thus, according to the first embodiment of the present disclosure, the user automatically sets the heating time without inputting the heating time of the product or selecting a button corresponding to the product. It is possible to set. In addition, when the operator closes the door 3 and vibration occurs due to a collision between the door 3 and the casing of the heating chamber 12 or the like, the image was previously taken by the camera 15 before the door 3 was closed. The recognition unit 102 performs recognition using the image. As a result, it is possible to prevent a time loss in operation such that shooting cannot be started until the vibration is stopped.

(Second Embodiment)
Next, a second embodiment of the present disclosure will be described using the flowchart of FIG.

  FIG. 5 is a flowchart illustrating an operation of the microwave oven 1 according to the second embodiment of the present disclosure.

  The difference between the first embodiment and the second embodiment is that, in the second embodiment, when there are a plurality of candidate images for recognition, some of the candidate images are recognized. Processing is performed, and the remaining candidate images are used as candidate images for recovery when recognition fails.

  In the following, only points different from the first embodiment will be described, and description of the same control will be omitted.

  In the present embodiment, in step S5, the control unit 100 captures characters for some of the plurality of candidate images taken by the camera 15 and stored in the storage unit 103 as first candidates. Recognition is performed, heating control information is acquired, and the process proceeds to step S6. At this time, a single image may be recognized, or each of a plurality of images may be recognized and the consistency confirmed as in the first embodiment. It is good also as a recognition result in S5.

  In step S6, the control unit 100 determines whether or not the recognition process performed in step S5 is successful. If successful (S6, YES), the process proceeds to step S7. If unsuccessful (S6, NO), the process proceeds to step S10.

  In step S <b> 10, the control unit 100 checks whether another candidate image for recognition exists in the storage unit 103. When another candidate image exists (S10, YES), the control unit 100 returns the process to step S5. In step S5, recognition processing is performed using another candidate image. On the other hand, when there is no other candidate image (S10, NO), the control unit 100 ends the process without heating the food.

  As described above, in the second embodiment, the recognition unit 102 uses a part of the plurality of candidate images stored in the storage unit 103 as a recovery image at the time of recognition failure. Even when recognition fails for an image, it is possible to increase the recognition opportunities and to perform recovery. For this reason, it is possible to reduce the trouble of operation such as re-pressing the start button of the operator.

(Other embodiments)
In embodiment mentioned above, although the microwave oven 1 which is a heating cooker showed the example which acquires and recognizes heating control information independently, this indication is not limited to this example.

  For example, the cooking device can be configured to be connectable to a network, and can be implemented as a cooking system that controls the cooking device by a server on the network.

  FIGS. 6-8 is a figure which shows the structure of the heating cooking systems 300-302 in other embodiment of this indication, respectively.

  In the heating and cooking system 300 to 302, both or either of the processes performed by the recognition unit 102 and the storage unit 103 in the microwave oven 1 according to the first embodiment are executed on the server 200 side. Thereby, the processing load by the recognition process etc. in a heating cooker can be reduced.

  For example, in the configuration of FIG. 6, the heating and cooking system 300 includes a microwave oven 1 that is an example of a heating cooker and a server 200. The heating control unit 101, the detection unit 104, and the camera 15 are controlled by the control unit 100 of the microwave oven 1. In addition, the microwave oven 1 includes a communication unit 109 that can communicate with the server 200.

  The server 200 includes a communication unit 202 that can communicate with the microwave oven 1, and the recognition unit 102 and the storage unit 103 are controlled by the control unit 201.

  In such a configuration, the product is photographed by the camera 15 in the microwave oven 1, and a candidate image for extracting the heating control information is sent to the server 200. In the server 200, recognition processing, consistency check, and the like are performed, and the result is returned to the microwave oven 1. Candidate images are stored in the storage unit 103 on the server 200 side. In the microwave oven 1, the product is cooked using the heating control information that is confirmed to be consistent.

  Next, the cooking system 301 having the configuration shown in FIG. 7 is different from the cooking system 300 in FIG. 6 in that the storage unit 103 is mounted on the microwave oven side.

  According to such a configuration, the product is photographed by the camera 15 in the microwave oven 1, and the image is stored in the storage unit 103 of the microwave oven 1. The extracted candidate images are sent to the server 200 to extract the heating control information. In the server 200, recognition processing, consistency check, and the like are performed, and the result is returned to the microwave oven 1. In the microwave oven 1, the product is cooked using the heating control information that is confirmed to be consistent.

  8 is different from the configuration of the cooking system 300 in FIG. 6 in that the recognition unit 102 is mounted on the microwave oven side.

  In such a configuration, the product 15 is photographed by the microwave oven 1 and sent to the server 200. Candidate images are stored in the storage unit 103 of the server 200. On the microwave oven 1 side, recognition processing of a candidate image for extracting heating control information (this may be an image sent from the server 200) and confirmation of consistency are performed, and there is consistency. The cooking of the product is performed using the heating control information confirmed as follows.

  If the storage unit 103 is provided on the server 200 side as in the configuration of FIG. 8, it is not necessary to use a large capacity memory on the microwave oven 1 side, and a simple configuration can be realized.

  Note that the above-described embodiments are for illustrating the technique in the present disclosure, and therefore various modifications, replacements, additions, omissions, and the like can be made within the scope of the claims and the equivalents thereof. .

  As described above, according to the present disclosure, the user can read the heating control information printed on the product just by placing the product in the heating chamber, and appropriately heat the product accordingly. . Therefore, there is no troublesome setting, and in addition to a microwave oven used in a store, it can be applied to cooking appliances such as a microwave oven for home use, a rice cooker, and an IH cooking heater, and is useful. There is a possibility that the microwave oven for business use is disposed in an eat-in space that is bright and easily affected by outside light, and the content of the present disclosure is particularly effective.

DESCRIPTION OF SYMBOLS 1 Microwave oven 2 Case 3 Door 4 Glass window 5 Handle 6 Operation display part 7 Liquid crystal display 8 Time setting button group 9 Heating start button 10 Cancel button 11 Pause button 12 Heating chamber 13a, 13b Magnetron 14 Food 15 Camera 16a Switch 16b Proximity sensor 17 Seal 18 Product name 19 Heating control information 20 Amount information 21 Expiration date information 22 Barcode 23 Nutrition information 24 Notification information 25 Square frame 100 Control unit 101 Heating control unit 102 Recognition unit 103 Storage unit 104 Detection unit 109 Communication unit 200 Server 201 Control Unit 202 Communication Unit 300, 301, 302 Cooking System

Claims (5)

A heating cabinet;
A photographing unit for photographing the inside of the heating chamber;
A storage unit for storing an image photographed by the photographing unit;
A door that is opened and closed when placing an object to be heated in the heating chamber;
A detector for detecting opening and closing of the door;
A recognition unit that obtains heating control information related to the object to be heated from the image stored in the storage unit,
The detection unit is configured to detect a predetermined timing width before the door is closed,
The cooking unit configured to acquire the heating control information by selecting an image photographed in the predetermined timing width from the images stored in the storage unit. A switch for detecting that the door is closed;
A proximity sensor that detects that the distance between the door and the housing of the heating chamber is equal to or less than a predetermined distance;
The cooking device according to claim 1, wherein the detection unit is configured to use the predetermined timing width after the detection timing by the proximity sensor and before the detection timing by the switch. The detection unit calculates the difference between the plurality of images with respect to the plurality of temporally continuous images stored in the storage unit, thereby calculating the illuminance in the heating chamber. The cooking device according to claim 1, wherein a timing width in which an environmental change is stable is detected, and the detected timing width is set as the predetermined timing width. The said recognition part is comprised so that the said heating control information may be acquired using the said several image image | photographed at the different timing memorize | stored in the said memory | storage part. The cooking device according to item. A heating cabinet;
A photographing unit for photographing the inside of the heating chamber;
A door that is opened and closed when placing an object to be heated in the heating chamber;
A detection unit that detects opening and closing of the door, and a control method of a heating cooker comprising:
Detect a predetermined timing width before the door is closed,
A method for controlling a heating cooker that acquires heating control information related to the object to be heated by selecting an image shot in the predetermined timing width from images taken in the heating chamber and shot by the shooting unit .

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