Heating cooker

Abstract

The heating cooker disclosed in the present invention includes a heating chamber for accommodating an object to be heated, a heating unit, a control unit, a detection unit, a lighting unit, a camera unit, a recognition processing unit, and a notification unit. The heating unit heats the object to be heated. The control unit controls the heating of the heating unit. The detection unit detects the open and closed state of the door of the heating chamber. The lighting unit illuminates the interior of the heating chamber. The camera unit captures the interior of the heating chamber when the door is open and when the door is closed. The recognition processing unit reads heating control information assigned to the object to be heated from the captured image. When the recognition processing unit is able to read the heating control information when the door is open, the control unit causes the notification unit to notify that the reading of the heating control information is successful.

Description

Technical Field

[0001] The present disclosure relates to a cooking device that uses a camera disposed inside the cooking device to recognize text and codes and then performs heating and cooking. Background Art

[0002] In a microwave oven, an example of a cooking appliance, cooking begins when a user inputs a heating time, etc., and presses a start button. In a store that sells boxed lunches or side dishes placed in containers, a store clerk, i.e., the user of the cooking appliance, sometimes cooks the food in a microwave oven and then serves it to customers.

[0003] Generally, the optimal heating time for heating in a microwave oven is written on the container of a boxed lunch or side dish. The user sets the written heating time in the microwave oven using numeric keys etc. provided on the operation unit to start heating the object.

[0004] Microwave ovens sometimes also include a plurality of operation buttons that are each assigned a different heating time. In this case, when a user presses an operation button that is assigned a heating time corresponding to an object to be heated, the object to be heated can be optimally heated.

[0005] However, in the case of such a microwave oven, it is necessary to specifically input the heating time and the like, which is troublesome for the user.

[0006] Therefore, technologies for automatically setting the heating time, etc. for microwave ovens have been proposed. Patent Document 1 discloses a camera-equipped cooking device. The cooking device described in Patent Document 1 uses a camera to capture an image of the object being heated before cooking, and then appropriately heats the object by recognizing the captured image.

[0007] Patent Document 2 discloses a cooking device equipped with a scanner such as a barcode reader. In the cooking device described in Patent Document 2, heating starts without pressing an operation button when an object to be heated is placed on the scanner, placed in a heating chamber, and the door is closed.

[0008] Prior art literature

[0009] Patent Literature

[0010] Patent Document 1: Japanese Patent Application Laid-Open No. 2001-324146

[0011] Patent Document 2: Japanese Utility Model Registration No. 3217241 Summary of the Invention

[0012] However, in the prior art, the heating control information given to the object to be heated is read in either the state where the door of the heating cooker is open or the state where the door is closed. That is, in the prior art, the heating control information is not recognized regardless of the open or closed state of the door.

[0013] An object of the present invention is to provide a cooking device that can recognize heating control information of an object to be heated regardless of the open or closed state of a door, thereby enabling simple cooking.

[0014] A cooking device according to one embodiment of the present disclosure includes a heating chamber for accommodating an object to be heated, a heating unit, a control unit, a detection unit, a lighting unit, an imaging unit, a recognition processing unit, and a notification unit.

[0015] The heating unit heats an object to be heated housed in the heating chamber. The control unit controls the heating unit. The detection unit detects whether the door of the heating chamber is open or closed. The lighting unit illuminates the interior of the heating chamber. The imaging unit captures images of the interior of the heating chamber. The recognition processing unit reads heating control information for the object to be heated from the image captured by the imaging unit. The notification unit notifies the user of the information.

[0016] The shooting unit takes pictures when the door is open and when the door is closed, and the recognition processing unit reads the heating control information assigned to the heated object from the captured image. When the recognition processing unit is able to read the heating control information when the door is open, the control unit notifies the notification unit that the reading of the heating control information is successful.

[0017] According to the above configuration, the heating control information can be read during a series of operations, such as placing the object to be heated in the heating chamber and closing the door. As a result, heating and cooking can be performed simply and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a figure which shows the external appearance of the heating cooker which concerns on embodiment of this disclosure.

[0019] Figure 2 It is a block diagram schematically showing the functional configuration of the cooking device according to the embodiment.

[0020] Figure 3A It is a diagram schematically showing a state in which heating control information is recognized with the door open.

[0021] Figure 3B This is a diagram schematically showing how heating control information is recognized with the door closed.

[0022] Figure 4 It is a diagram showing an operation display panel of the heating cooker according to the embodiment.

[0023] Figure 5 This is a flowchart showing the flow of recognition processing in the heating cooker according to the embodiment.

[0024] Figure 6 This diagram shows the conditions and values corresponding to each setting in the door open mode and door closed mode. DETAILED DESCRIPTION

[0025] A cooking device according to a first aspect of the present disclosure includes a heating chamber for accommodating an object to be heated, a heating unit, a control unit, a detection unit, a lighting unit, an imaging unit, a recognition processing unit, and a notification unit.

[0026] The heating unit heats an object to be heated housed in the heating chamber. The control unit controls the heating unit. The detection unit detects whether the door of the heating chamber is open or closed. The lighting unit illuminates the interior of the heating chamber. The imaging unit images the interior of the heating chamber. The recognition processing unit reads heating control information for the object to be heated from the image captured by the imaging unit. The notification unit notifies the user of the information.

[0027] The shooting unit takes pictures when the door is open and when the door is closed, and the recognition processing unit reads the heating control information assigned to the heated object from the captured image. When the recognition processing unit is able to read the heating control information when the door is open, the control unit notifies the notification unit that the reading of the heating control information is successful.

[0028] In the second embodiment of the cooking device disclosed herein, based on the first embodiment, when the recognition processing unit fails to read the heating control information when the door is open but can read the heating control information when the door is closed, the control unit causes the notification unit to notify that the reading of the heating control information is successful.

[0029] In the third aspect of the cooking device disclosed herein, based on the first or second aspect, when the recognition processing unit fails to read the heating control information both when the door is open and when the door is closed, the control unit causes the notification unit to notify the failure of reading the heating control information.

[0030] In a fourth aspect of the cooking device disclosed herein, in addition to any one of the first to third aspects, imaging conditions in a mode for reading heating control information when the door is open differ from imaging conditions in a mode for reading heating control information when the door is closed.

[0031] In the cooking device according to the fifth aspect of the present disclosure, in addition to the fourth aspect, the number of times the imaging unit images is increased in the mode of reading the heating control information when the door is open, compared to the mode of reading the heating control information when the door is closed.

[0032] In the cooking device according to the sixth aspect of the present disclosure, in addition to the fourth or fifth aspect, the exposure time of the imaging unit is shorter in the mode of reading the heating control information when the door is open than in the mode of reading the heating control information when the door is closed.

[0033] In the cooking device according to the seventh aspect of the present disclosure, in any one of the fourth to sixth aspects, the lighting unit illuminates brighter in the mode of reading the heating control information when the door is open than in the mode of reading the heating control information when the door is closed.

[0034] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0035] Figure 1 1 is a diagram showing the appearance of the heating cooker 100 of this embodiment. Figure 1 As shown, a cooking device 100 is a microwave oven having a housing 111 with a heating chamber 104 therein for storing food 107 to be heated. The housing 111 includes a door 101 disposed on the front surface of the housing 111 and covering the front opening of the heating chamber 104; and a display unit 102 and a selection unit 103 disposed above the door 101.

[0036] As will be described later, the cooking device 100 reads the heating time corresponding to the food 107 from a label or other information attached to the food 107, and cooks the food 107 according to the heating time. Heating control information such as the heating time is displayed on the display unit 102. The heating control information may also include the read heating power (wattage).

[0037] The selection unit 103 includes a menu selection button for selecting a cooking menu corresponding to the food item 107, for example, when the heating time has not been read, numeric buttons for manually setting the heating time, and a "minute" button and a "second" button for setting the clock. The selection unit 103 also includes a start button for starting heating and a stop button for pausing heating (temporarily stopping / cancelling). The user can input various settings, including those described above, through the selection unit 103.

[0038] Heating chamber 104 includes an LED (light-emitting diode) lamp 105 and a camera 106. LED lamp 105 is located on the upper side of heating chamber 104. Camera 106 is located closer to the side than the center of the top of heating chamber 104. This configuration allows for capturing images of the entire interior of heating chamber 104. Camera 106 can also be located on the side.

[0039] In the cooking device 100 , the camera 106 captures an image of food 107 stored in the heating chamber 104 , and detects heating control information related to the food 107 based on the captured image information.

[0040] The LED lamp 105 illuminates the entire interior of the heating chamber 104 from the side of the heating chamber 104. The LED lamp 105 may be disposed on the top of the heating chamber 104.

[0041] Figure 2 It is a block diagram schematically showing the functional configuration of the cooking device 100 .

[0042] like Figure 2 As shown, the cooking device 100 includes a heating unit 201 , a control unit 202 , an operation unit 203 a , a notification unit 203 b , a detection unit 204 , a lighting unit 205 , an imaging unit 206 , a recognition mode setting unit 207 , and a recognition processing unit 208 .

[0043] The heating unit 201 heats the food 107 accommodated in the heating chamber 104. The control unit 202 controls the heating of the food 107 by controlling the heating unit 201. The operation unit 203a is used by the user to perform various operations and settings.

[0044] The detection unit 204 detects the open / close state of the door 101. The lighting unit 205 illuminates the interior of the heating chamber 104. The imaging unit 206 includes the camera 106 (see Figure 1 ) to capture the interior of heating chamber 104. Recognition mode setting unit 207 determines the setting conditions for imaging unit 206 and lighting unit 205 based on the open / closed state of door 101. Recognition processing unit 208 performs image recognition processing on the image captured by imaging unit 206 and notifies control unit 202 of the result.

[0045] Heating unit 201 includes, for example, a magnetron, a semiconductor oscillator, and a radiant heater, and heats food 107 placed in heating chamber 104 .

[0046] The control unit 202 is composed of a microcomputer, a microprocessor, etc., and controls the heating unit 201 based on the indoor state of the heating chamber 104 and heating control information related to the food 107. The heating control information includes heating power and heating time corresponding to the heating power.

[0047] The operation unit 203a includes a plurality of keys including, for example, a touch panel and mechanical buttons, etc. The user uses the operation unit 203a to set a menu and a heating time, start heating, temporarily stop heating, and the like.

[0048] The notification unit 203b includes a display device such as an LED display or a liquid crystal display, which displays information such as the elapsed heating time, the remaining heating time, and the heating power. The notification unit 203b also displays errors and identification displays in the event of a problem. The identification display includes a display of user settings and a display indicating that the image capture unit 206 has successfully identified the device. The notification unit 203b uses these displays to inform the user.

[0049] The notification unit 203b may include a speaker for making notifications based on some kind of sound, in addition to the above-mentioned display device.

[0050] The detection unit 204 includes a door switch that can be opened and closed, and detects whether the door 101 is open or closed. The detection unit 204 notifies the recognition mode setting unit 207 of the detected information.

[0051] The imaging unit 206 includes, for example, a CMOS (complementary metal oxide semiconductor) image sensor or a CCD (charge coupled device) image sensor, and images the interior of the heating chamber 104. The imaging unit 206 includes the aforementioned camera 106 and a control circuit.

[0052] The lighting unit 205 includes an LED lamp 105 and illuminates the interior of the heating chamber 104 at a brightness between 0% and 100%.

[0053] The recognition mode setting unit 207 sets the imaging conditions of the imaging unit 206 and the brightness of the lighting unit 205 according to the open / closed state of the door 101, and notifies the control unit 202 of the completion of the setting. The control unit 202 starts the operation of the imaging unit 206 and the lighting unit 205 based on the recognition mode set by the recognition mode setting unit 207.

[0054] The recognition processing unit 208 analyzes and recognizes whether the image captured by the imaging unit 206 is text information or code information (information related to control including numbers).

[0055] Recognition processing unit 208 recognizes heating control information written on a label attached to food 107. This heating control information includes, for example, a combination of heating power and heating time, such as 900W for 2 minutes and 30 seconds. Furthermore, recognition processing unit 208 performs correction processing on the image captured by imaging unit 206.

[0056] The recognition mode setting unit 207 and the recognition processing unit 208 are composed of a microcomputer or a microprocessor, etc. These elements may be integrally formed with the control unit 202 or may be separately formed.

[0057] Label text recognition methods can include, for example, detecting the heating control information enclosed by a frame on the label, or detecting the label's outline. The text information can include not only heating control information but also image information, type, shape, and expiration date of the food. Code information recognition methods can also include methods for recognizing common barcodes or QR codes (registered trademark).

[0058] Figure 3A This is a diagram schematically showing a state in which heating control information is recognized with the door 101 open. Figure 3B This is a diagram schematically showing a state in which heating control information is recognized with the door 101 closed.

[0059] exist Figure 3A In the example shown, with door 101 open, camera 306 captures food 107, and recognition processing unit 208 recognizes heating control information attached to food 107. Food 107 is a boxed lunch, and camera 306 is located in the center of the top of heating chamber 104.

[0060] exist Figure 3A In the example shown, the heating control information is recognized after the food 107 is placed in the heating chamber 104. However, the user may bring the food 107 close to the camera 306, causing the cooking device 100 to recognize the heating control information. Alternatively, the cooking device 100 may recognize the heating control information during a series of actions, from the user opening the door 101 to placing the food 107 in the heating chamber 104.

[0061] exist Figure 3B In the illustrated example, with door 101 closed, camera 306 captures an image of food 107 , and recognition processing unit 208 recognizes heating control information attached to food 107 .

[0062] Figure 4 1 is a diagram showing the operation display panel 400 of the cooking device 100 . Figure 4 The operation display panel 400 shown is an example of the display unit 102 and the selection unit 103. The operation display panel 400 includes an LED display 401, menu selection buttons 404, numeric buttons 402, and a start button 403. The display unit 102 (LED display 401) is a part of the notification unit 203b.

[0063] LED display 401 is used to display heating control information. Menu selection button 404 and numeric buttons 402 are used to set various cooking menus and perform special operations. Start button 403 is used to start the heating process determined by recognition processing unit 208.

[0064] In the heating cooker 100, the LED display 401 performs displays for performing various operations. Therefore, for most setting operations, it is necessary to press the numeric buttons 402, the start button 403, etc. multiple times. Such operations are burdensome and troublesome for the user.

[0065] If the heating control information assigned to food 107 can be automatically read, heating of food 107 can be started simply by pressing start button 403. As a result, the user can avoid troublesome settings.

[0066] Figure 5 This is a flowchart showing the flow of image recognition processing in the cooking device 100 .

[0067] like Figure 5 As shown, the detection unit 204 detects the user's opening operation of the door 101 based on the state of the door switch (step S501). Before the door 101 is opened, the process stays at step S501. When the door 101 is opened, the process proceeds to step S502.

[0068] The recognition mode setting unit 207 sets the recognition mode to the door open mode (step S502). The imaging unit 206 captures the interior of the heating chamber 104, and the recognition processing unit 208 performs recognition processing of the heating control information based on the captured image (step S503).

[0069] Figure 6 This is a diagram showing conditions and values to be set for each item in the door open mode and the door closed mode.

[0070] like Figure 6 As shown, in the door open mode, the shooting mode of the shooting unit 206 is set to "continuous shooting" (refer to Figure 6 The exposure time of the imaging unit 206 is set to 20 ms, for example (see Figure 6 The brightness of the lighting unit 205 is set to, for example, 500 lux (Lx) (see Figure 6 The gain of the imaging unit 206 is set to ×2 (for example, 6 dB) (see Figure 6 ID "A004").

[0071] In door-open mode, imaging unit 206 continuously captures images over a short period of time. Specifically, from the moment a user places food 107 in heating chamber 104 and places it there until door 101 is closed, imaging is repeated, with recognition processing performed for each capture. In other words, in door-open mode, as many images as possible are captured to enable the heating control information attached to food 107 to be recognized as quickly as possible.

[0072] Compared with the door closed mode, in the door open mode, the number of shots is greater, the exposure time is shorter, the lighting is brighter, and the gain setting is higher. Thus, the heating control information attached to the food 107 can be recognized as soon as possible.

[0073] In the door open mode, the recognition processing unit 208 does not perform shading correction in the image pre-processing (see Figure 6 ID "B001"). Shading correction is a process of removing density unevenness from an image having density unevenness.

[0074] return Figure 5 In the door open mode, if the recognition processing unit 208 successfully reads the heating control information ("Yes" in step S504), it determines the heating control information to be set for heating. The process proceeds to step S505. The control unit 202 notifies the user of the successful reading of the heating control information via the notification unit 203b (step S505).

[0075] The control unit 202 may also cause the notification unit 203b to display, for example, "Recognition successful." The control unit 202 may also cause the notification unit 203b to emit a sound, such as a "beep." In this way, the user can recognize through the display or sound that the cooking device 100 has recognized the heating control information and is in a state where heating is possible.

[0076] When the user closes door 101, detection unit 204 detects the closure of door 101 (step S506). The user then presses start button 403 (step S507). This allows the user to start cooking food 107 without having to set the heating time and heating power through operation unit 203a (step S508).

[0077] In the door open mode, after the detector 204 detects the closing of the door 101 (step S506), the user may be notified that the recognition processing unit 208 has successfully read the heating control information (step S505).

[0078] In the door open mode, if the recognition processing unit 208 fails to read the heating control information before the user closes the door 101 (No in step S504 ), the process proceeds to step S509 .

[0079] After the user closes door 101 and detection unit 204 detects the door closure (step S509), recognition mode setting unit 207 sets the recognition mode to door closed mode (step S510). Image capture unit 206 captures the interior of heating chamber 104, and recognition processing unit 208 performs recognition processing for heating control information based on the captured image.

[0080] like Figure 6 As shown, in the door closed mode, the shooting mode of the shooting unit 206 is set to "single shooting" (refer to Figure 6 The exposure time of the imaging unit 206 is selected and set to, for example, 100 ms (see Figure 6 The brightness of the lighting unit 205 is set to, for example, 200 Lx (see Figure 6 The gain of the imaging unit 206 is set to ×1 (for example, 3 dB) (see Figure 6 ID "A004").

[0081] In door closed mode, food 107 placed in heating chamber 104 is photographed with a longer exposure time and in a "single shot" manner than in door open mode. This allows the heating control information attached to food 107 to be more reliably recognized.

[0082] In gate closed mode, fewer shots are taken, exposure times are longer, lighting is dimmed, and gain is set lower than in gate open mode.

[0083] Preferably, the values of exposure time×illumination brightness×gain are the same in both the door open mode and the door closed mode. In this embodiment, the value is 20000 (refer to Figure 6 ).

[0084] In the door closed mode, the recognition processing unit 208 performs shading correction as image pre-processing (see Figure 6 ID "B001").

[0085] return Figure 5 In the door closed mode, if the recognition processing unit 208 successfully reads the heating control information ("Yes" in step S511), it determines the heating control information to be set for heating. The process proceeds to step S512. The control unit 202 notifies the user of the successful reading of the heating control information via the notification unit 203b (step S512).

[0086] The control unit 202 may cause the notification unit 203b to display, for example, "Recognition successful," "OK," etc. The control unit 202 may cause the notification unit 203b to emit a sound such as a "beep" once.

[0087] In this way, the user can recognize through the display or sound that the heating cooker 100 has recognized the heating control information and is in a state where heating is possible. When the user presses the start button 403 (step S507), the user can start heating and cooking the food 107 without setting the heating time and heating power through the operation unit 203a (step S508).

[0088] In door closed mode, if the recognition processing unit 208 fails to read the heating control information (No in step S511), the process proceeds to step S513. The control unit 202 notifies the user of the failure to read the heating control information via the notification unit 203b (step S513). In this case, the heating control information to be set for heating has not been determined.

[0089] The control unit 202 may also cause the notification unit 203b to display, for example, "Recognition failed" or "NG". The control unit 202 may also cause the notification unit 203b to emit a sound, for example, "beep" three times in succession. The control unit 202 may also cause the notification unit 203b to notify "Recognition error" by sound.

[0090] The user can recognize through the display and sound that the heating cooker 100 fails to recognize the heating control information and is not in a state where heating is possible. The user can open the door 101 again, take out the food 107, recheck the label attached to the food 107, or put the food 107 back into the heating chamber 104, thereby re-reading the heating control information.

[0091] If the cooking device 100 has a built-in memory for storing captured images, images of successfully read images and images of failed read images can be stored in either the door open mode or the door closed mode.

[0092] The control unit 202 can also analyze the cause of the reading error by reading and analyzing the stored image. An external storage medium such as an SD card or USB (universal serial bus) memory may be used instead of the built-in memory.

[0093] As described above, according to this embodiment, heating control information assigned to food 107 can be read when door 101 is open or closed. If heating control information can be read when door 101 is open, cooking device 100 notifies the user that the heating control information has been successfully read.

[0094] Thus, the user does not need to perform cumbersome actions such as bringing the text or code related to the heating control information close to the imaging unit. The heating control information can be read during the user's series of actions of placing the food 107 in the heating chamber and closing the door. As a result, rapid heating and cooking can be performed.

[0095] When the cooking device 100 fails to read the heating control information when the door 101 is open but can read the heating control information when the door 101 is closed, the user is notified that the heating control information has been successfully read. The heating control information that could not be read when the door 101 was open can be read more reliably when the door 101 is closed.

[0096] Thus, the user does not need to perform cumbersome actions such as bringing the text or code related to the heating control information close to the imaging unit. The heating control information can be read during the user's series of actions of placing the food 107 in the heating chamber and closing the door. As a result, rapid heating and cooking can be performed.

[0097] If the heating control information cannot be read both when the door 101 is open and when it is closed, the cooking device 100 notifies the user of the failure to read the heating control information. This prompts the user to open the door 101 again, remove the food 107, recheck the label attached to the food 107, and then place the food 107 back in the heating chamber. As a result, the heating control information can be read again more reliably.

[0098] In this embodiment, as described below, the imaging conditions for the door-open mode, which reads the heating control information when the door 101 is open, differ from those for the door-closed mode, which reads the heating control information when the door 101 is closed. This allows the heating control information to be more reliably read at any time, whether the door 101 is open or closed.

[0099] The number of images captured by the imaging unit 206 in the door open mode is set to be greater than that in the door closed mode in which the heating control information is read when the door 101 is closed. This allows the heating control information to be read more reliably at any time, whether the door 101 is open or closed.

[0100] The exposure time of imaging unit 206 is set shorter in door-open mode, which reads heating control information for food 107 when door 101 is open, than in door-close mode, which reads heating control information for food 107 when door 101 is closed. This allows heating control information to be read more reliably at any time, whether door 101 is open or closed.

[0101] In the door open mode, which reads the heating control information for food 107 when door 101 is open, the illumination of illumination unit 205 is set brighter than in the door closed mode, which reads the heating control information for food 107 when door 101 is closed. This allows the heating control information to be read more reliably at any time, whether door 101 is open or closed.

[0102] Industrial applicability

[0103] The present disclosure can be applied to heating cookers such as microwave ovens.

[0104] Description of Reference Signs

[0105] 100: Heating cooker; 101: Door; 102: Display unit; 103: Selection unit; 104: Heating chamber; 105: LED light; 106, 306: Camera; 107: Food; 201: Heating unit; 202: Control unit; 203a: Operation unit; 203b: Notification unit; 204: Detection unit; 205: Lighting unit; 206: Photography unit; 207: Recognition mode setting unit; 208: Recognition processing unit; 400: Operation display panel; 401: LED display; 402: Numeric buttons; 403: Start button; 04: Menu selection button.

Claims

1. A heating cooker, wherein: The heating cooker comprises: a heating chamber configured to accommodate an object to be heated; a heating unit operable to heat the object to be heated housed in the heating chamber; a control unit capable of operating in a manner to control the heating unit; a detection unit operable to detect an open or closed state of the door of the heating chamber; an illumination unit operable to illuminate the interior of the heating chamber; a photographing unit operable to photograph the interior of the heating chamber; a recognition processing unit operable to read heating control information to be applied to the object to be heated from the image captured by the imaging unit; as well as a notification unit capable of operating in a manner of notifying a user of information, The imaging unit takes images when the door is open and when the door is closed, and the recognition processing unit reads the heating control information assigned to the heated object from the captured image. When the recognition processing unit is able to read the heating control information when the door is open, the control unit can operate in a manner that causes the notification unit to notify that the reading of the heating control information is successful.

2. The heating cooker according to claim 1, wherein When the recognition processing unit fails to read the heating control information when the door is open but can read the heating control information when the door is closed, the control unit may operate so that the notification unit notifies that the reading of the heating control information is successful.

3. The heating cooker according to claim 1 or 2, wherein: When the recognition processing unit fails to read the heating control information both when the door is open and when the door is closed, the control unit may operate so that the notification unit notifies that the reading of the heating control information has failed.

4. The heating cooker according to claim 1, wherein The imaging condition of the recognition mode for reading the heating control information when the door is open is different from the imaging condition of the recognition mode for reading the heating control information when the door is closed.

5. The heating cooker according to claim 4, wherein The number of times the imaging unit captures images is greater in the recognition mode in which the heating control information is read when the door is open than in the recognition mode in which the heating control information is read when the door is closed.

6. The heating cooker according to claim 4 or 5, wherein: In the recognition mode in which the heating control information is read when the door is open, the exposure time of the imaging unit is shorter than in the recognition mode in which the heating control information is read when the door is closed.

7. The heating cooker according to claim 4, wherein The illumination of the illumination unit is brighter in the recognition mode for reading the heating control information when the door is open than in the recognition mode for reading the heating control information of the object to be heated when the door is closed.

Images