Heating Regulator

Abstract

To provide a heating cooker which makes a user recognize information on heating control of a to-be-heated object without burdening the user as little as possible and facilitates cooking.SOLUTION: A heating cooker enables reading of information on heating control of a to-be-heated object when a door is opened and closed. Therefore, a user can read information on heating control in a series of actions of storing the to-be-heated object in a heating chamber and closing the door, to the utmost, by notification of reading the information on heating control when the information on heating control of the to-be-heated object can be read when the door is opened, so that easy and rapid cooking can be performed.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a cooking appliance that uses a camera installed inside the cooking appliance to recognize characters or codes printed on a food label and then cooks the food. [Background technology]

[0002] A microwave oven is known as an example of a cooking appliance. In a microwave oven, a user inputs the time for heating and then presses a button to start heating, thereby cooking the food. In stores such as convenience stores and supermarkets that sell boxed lunches or side dishes in containers, a store clerk (user) may provide a service of cooking purchased food in a microwave oven and serving it to the user.

[0003] This type of heating and cooking service will be explained. Generally, the containers of bento and side dishes are labeled with the optimal heating time for heating in a microwave oven. The user sets the heating time on the microwave oven by looking at the display and heats the food. The operation panel of the microwave oven is equipped with number keys and the like, and the heating time (minutes, seconds) is set.

[0004] In addition, a microwave oven may have multiple operation buttons, each of which may be assigned a different heating time. In this case, a user can select the button that corresponds to the food to be heated, and the food can be heated with heating control appropriate for that food and served to a customer.

[0005] However, such microwave ovens pose a problem for users because they require the user to take the trouble to input the heating time and the like.

[0006] For this reason, technology has been proposed for automatically setting the heating time, etc., in a microwave oven. For example, Patent Document 1 proposes a technology in which a camera is mounted on a cooking device, an image of an object to be heated is taken with the camera before cooking, and the image is recognized in the microwave oven, so that appropriate heating is performed according to the object to be heated.

[0007] Furthermore, Patent Document 2 proposes a technology in which a cooking appliance is equipped with a scanning device such as a barcode reader, and by holding the object to be heated over the scanning device, heating can be started by closing the microwave door without pressing an operation button. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] JP 2001-324146 A [Patent Document 2] Utility Model Registration No. 3217241 Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention relates to When reading the heating control information given to the object to be heated, the accuracy of reading the heating control information can be improved. The object of the present invention is to provide a heating cooker. [Means for solving the problem]

[0010] In order to solve the above-mentioned conventional problems, the heating cooker of the present invention includes a heating chamber in which an object to be heated is stored, a heating unit that heats the object to be heated stored in the heating chamber, a main body control unit that controls heating by the heating unit, a door opening / closing detection unit that detects whether a door of the heating chamber is opened or closed, an illumination unit that illuminates the inside of the heating chamber, and an image capturing unit that captures an image of the inside of the heating chamber. The heating control information of the object to be heated can be read when the door is open, and the brightness of the illumination unit when the door is open is brighter than the brightness of the illumination unit when the door is closed. It is characterized by: Effect of the Invention

[0011] According to this configuration, When reading the heating control information imparted to the object to be heated, the accuracy of reading the heating control information can be improved. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram showing an external appearance of a cooking device according to a first embodiment of the present disclosure. [Diagram 2] FIG. 1 is a block diagram showing a functional configuration of a cooking device according to a first embodiment of the present disclosure. [Diagram 3] FIG. 13 is a diagram showing an example of a case where a heated object is recognized with the door open and a case where a heated object is recognized with the door closed in the first embodiment of the present disclosure; [Figure 4] FIG. 1 is a diagram showing an example of an operation panel of a cooking device according to a first embodiment of the present disclosure. [Diagram 5] A flowchart showing a recognition process in the cooking device according to the first embodiment of the present disclosure. [Figure 6] FIG. 1 is a table showing the association between the setting conditions to be set and the numerical information in each of the door open recognition mode and the door close recognition mode according to the first embodiment of the present disclosure; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The first invention comprises a heating cabinet in which an object to be heated is stored, a heating unit that heats the object to be heated stored in the heating cabinet, a main body control unit that controls heating by the heating unit, a door opening / closing detection unit that detects whether the door of the heating cabinet is open or closed, a lighting unit that illuminates the inside of the heating cabinet, and an imaging unit that images the inside of the heating cabinet, and is capable of reading heating control information of the object to be heated when the door is open and when the door is closed, and if the heating control information of the object to be heated can be read when the door is open, it notifies the user that the heating control information has been read.

[0014] With this configuration, the user can read the heating control information as much as possible during the series of actions of placing the object to be heated in the heating chamber and closing the door, without having to take the troublesome action of bringing letters or codes relating to the heating control information attached to the object to be heated close to the photographing unit, thereby enabling quick heating and cooking.

[0015] The second invention is the first invention, in which if the heating control information of the heated object cannot be read when the door is opened, but the heating control information can be read when the door is closed, a notification is provided that the heating control information has been read.

[0016] With this configuration, the heating control information that cannot be read when the door is open can be read more reliably with the door closed, so that the user can read as much of the heating control information as possible in the series of actions of placing the heated object in the heating chamber and closing the door without having to take the troublesome action of bringing the letters or codes related to the heating control information attached to the heated object close to the photographing unit, thereby enabling quick heating and cooking.

[0017] The third invention is, in the first or second invention, when the heating control information of the heated object cannot be read when the door is opened, and when the heating control information cannot be read when the door is closed, a notification is given that the heating control information could not be read.

[0018] With this configuration, the user can open the door again, remove the object to be heated, check the label attached to the object to be heated again, or place the object back into the heating chamber, thereby reading the heating control information again.

[0019] A fourth invention is any one of the first to third inventions, wherein a mode in which the heating control information of the object to be heated is read when the door is open is different from a mode in which the heating control information of the object to be heated is read when the door is closed.

[0020] With this configuration, the heating control information can be read more reliably either when the door is opened or when the door is closed.

[0021] In a fifth aspect of the invention based on the fourth aspect, a mode in which the heating control information of the object to be heated is read when the door is open captures an image more frequently than a mode in which the heating control information of the object to be heated is read when the door is closed.

[0022] With this configuration, the heating control information can be read more reliably either when the door is opened or when the door is closed.

[0023] The sixth invention is the fourth or fifth invention, wherein the heating of the object to be heated is restricted when the door is opened. The exposure time in the mode for reading the heating control information is shorter than that in the mode for reading the heating control information of the object to be heated when the door is closed.

[0024] With this configuration, the heating control information can be read more reliably either when the door is opened or when the door is closed.

[0025] A seventh invention is any one of the fourth to sixth inventions, wherein the lighting in a mode in which the heating control information of the object to be heated is read when the door is open is brighter than the lighting in a mode in which the heating control information of the object to be heated is read when the door is closed.

[0026] With this configuration, the heating control information can be read more reliably either when the door is opened or when the door is closed.

[0027] Hereinafter, examples of embodiments of the present disclosure will be described with reference to the drawings. Note that the present disclosure is not limited to the following embodiments.

[0028] (Embodiment 1) FIG. 1 is a diagram showing an external appearance of a cooking device according to a first embodiment of the present disclosure.

[0029] 1, cooking device 100 has a housing 111 for storing food (object to be heated) and a door panel (door) 101 for putting food in and taking it out. Cooking device 100 has heating information display unit 102 and selection unit (operation unit) 103 above door panel 101 in housing 111.

[0030] As described below, the cooking device 100 reads the heating time corresponding to the food from an indication such as a label attached to the food, and cooks the food for the heating time that has been read. The heating information display unit 102 displays the heating time that has been read. The heating power (wattage) that has been read may also be displayed.

[0031] Selection unit 103 includes a "menu button (menu switch button)" that allows the user to select a menu corresponding to the food to be heated when the heating time cannot be read, as well as number buttons, a "minute" button, and a "second" button for manually setting the heating time. Selection unit 103 also includes a "heat start button (start button)" for starting heating, and a "heat stop button (pause / cancel button)" for stopping heating. Selection unit 103 allows the user to input various settings, including those mentioned above.

[0032] Cooking appliance 100 also includes cooking chamber (heating chamber) 104 in housing 111. Cooking chamber 104 includes lighting unit 105 provided on the inside surface of cooking chamber 104 and camera 106 provided on the top surface of the inside of cooking chamber 104. Camera 106 is installed on the top (top surface) of cooking chamber 104, so that the entire inside of cooking chamber 104 can be photographed from the top of the inside of cooking chamber 104. Camera 106 may be installed on the inside (side surface). Camera 106 is electrically connected to a control circuit (not shown) provided in cooking appliance 100 and is controlled by the control circuit.

[0033] The cooking device 100 is configured to use a camera 106 to photograph food (object to be heated) 107 stored in a cooking chamber 104, and to detect heating information related to the food 107 from the photographed image information.

[0034] As described above, the cooking device 100 includes the lighting unit 105 provided on the inside of the cooking chamber 104. In the example of FIG. 1, the lighting unit 105 is provided on the side of the cooking chamber 104. and illuminates the entire inside of cooking chamber 104 from the inside side. Illumination unit 105 may be installed in the upper part of cooking chamber 104.

[0035] FIG. 2 is a block diagram showing a functional configuration of the cooking device according to the first embodiment of the present disclosure.

[0036] As shown in FIG. 2, the cooking device 200 includes a heating unit 201 that heats the food 107 stored in the cooking chamber 104, a main body control unit 202 that controls the heating by the heating unit 201, an operation unit 203a that allows the user to input settings, a display unit 203b that displays the heating time, heating power, remaining time until the end of heating, and any error or recognition display, a door opening / closing detection unit 204 that detects whether the door of the cooking chamber 104 is open or closed, a lighting unit 205 that illuminates the inside of the cooking chamber 104, a photographing unit 206 that photographs the inside of the cooking chamber 104, a recognition mode setting unit 207 that controls the photographing unit 206 and the lighting unit 205 depending on the open or closed state of the door panel 101, and a recognition processing unit 208 that processes images photographed by the photographing unit 206.

[0037] Heating section 201 is composed of, for example, a magnetron, a semiconductor oscillator, a radiation heater, or the like, and supplies high-frequency power or thermal energy to food 107 placed in cooking chamber 104 to heat food 107.

[0038] The main body control unit 202 is composed of a microcomputer, a microprocessor, etc., and controls the heating unit 201 based on the state inside the cooking chamber 104 and heating control information for the food to be heated. The heating control information includes heating power (wattage) and a heating time corresponding to that heating power.

[0039] The operation unit 203a has a plurality of keys including, for example, a touch panel and mechanical buttons, and is used when the user sets the menu and heating time, starts heating, pauses heating, and the like.

[0040] The display unit 203b is composed of, for example, a 7-segment LED or dot liquid crystal, and displays the heating time, the remaining heating time during heating, the heating power, etc. It is also capable of displaying an error using numbers, letters, etc. when heating is not possible due to some malfunction, displaying the user's settings, and displaying the successful recognition by the photographing unit 206 using numbers, letters, etc. The display unit 203b can notify the user by displaying these items.

[0041] As described above, the display unit 203b has a function of notifying the user of some kind of notification, but instead of or in addition to the display unit 203b, a buzzer (not shown) for notifying the user by voice may be provided.

[0042] The door open / close detection unit 204 is composed of an openable / closable switch or the like, and the main body control unit 202 detects whether the door panel 101 of the cooking chamber 104 is open or closed.

[0043] The photographing unit 206 is composed of, for example, a complementary metal oxide semiconductor (CMOS) image sensor or a charge coupled device (CCD) image sensor, and photographs the inside of the cooking chamber 104. The photographing unit 206 has the above-mentioned camera 106 and a control circuit.

[0044] The lighting unit 205 is configured with, for example, an LED lamp, and can be controlled to turn on and off, as well as the brightness.

[0045] The recognition mode setting unit 207 detects whether the door panel 101 is open or closed by the door opening / closing detection unit 204. Depending on the state, the photographing conditions of the photographing unit 206 and the brightness of the lighting unit 205 are set.

[0046] Based on the recognition mode set by the recognition mode setting unit 207, the recognition processing unit 208 performs analysis and recognition processing of the image captured by the imaging unit 206 to determine whether it is character information or code information (information related to control including numbers), detects information related to the heating control information (e.g., heating wattage and heating time such as heating output 900 W and heating time 2 minutes 30 seconds) written on the food label or the like attached to the food 107, and performs recognition processing of the heating control information. Furthermore, it also performs correction processing of the image captured by the imaging unit 206.

[0047] The recognition mode setting unit 207 and the recognition processing unit 208 are configured with a microcomputer, a microprocessor, or the like, and may be configured integrally with the main body control unit 202 or may be configured separately.

[0048] The character recognition method for the food label may be, for example, a method of detecting heating control information surrounded by a frame within the food label or a method of detecting the outline of the food label. The character information may include not only the heating control information for the food, but also image information of the whole food and related information on the type of food, or the shape and expiration date of the food. The code information recognition method may be a method of recognizing graphic codes such as general barcodes and QR codes (registered trademark).

[0049] FIG. 3 is a diagram showing an example of a case where door panel 101 in embodiment 1 of the present disclosure is opened, food 301 (object to be heated) is placed inside the cooking appliance, and then food 301 (object to be heated) is recognized, and a case where door panel 101 is closed and food 302 (object to be heated) is recognized.

[0050] FIG. 3(a) shows, as an example, a case in which, with door panel 101 open, food 301 (a boxed lunch) is automatically heated by a camera 306 attached to the top surface of the interior of cooking appliance 300 recognizing heating control information attached to food 301.

[0051] In addition, FIG. 3(a) shows an example in which door panel 101 is opened and food 301 (food to be heated) is placed inside the cooking appliance, and then food 301 (food to be heated) is recognized; however, the heating control information may be recognized by the user holding food 301 (food to be heated) in their hand and holding it over camera 306, or the heating control information affixed to food 301 may be recognized by camera 306 during a series of actions from the user opening door panel 101 to placing food 301 (food to be heated) inside the cooking appliance.

[0052] Also, FIG. 3(b) shows, as an example, a case in which, with the door panel 101 closed, food 301 (a lunch box) is automatically heated by a camera 306 attached to the top surface of the interior of the heating cooker 300 recognizing heating control information attached to the food 301.

[0053] 4 is a diagram showing an example of an operation panel of the cooking device according to the first embodiment of the present disclosure. The operation display panel 400 includes an LED display panel 401 (display unit) that displays heating control information, menu switching buttons and numeric buttons (operation unit) 402 for setting various cooking menus and performing special operations, and a start button (operation unit) 403 for starting the heating process determined by the recognition processing unit 208 or for finalizing the setting process.

[0054] In a cooking appliance 100 such as a microwave oven, since heating control is the main function, displays for performing various operations are displayed on the LED display panel 401. Therefore, in most setting operations, settings are performed by repeatedly pressing the number button 402, the start button 403, etc., which is very burdensome and troublesome for the user when performing operations.

[0055] Therefore, if the heating control information attached to the food 107 can be automatically read, the user can avoid troublesome settings and can start heating the food 107 simply by pressing the start button 403.

[0056] FIG. 5 is a flowchart showing the image recognition process in the cooking device according to the first embodiment of the present disclosure.

[0057] First, the door open / close detection unit 204 judges whether the door panel 101 is open or not based on the state of the door switch (S501). If the door panel 101 is open, the process proceeds to S502, where the recognition mode setting unit 207 sets the door open recognition mode, and the photographing unit 206 starts photographing the inside of the cooking chamber 104 and recognizing the heating control information (S502).

[0058] As shown in the table diagram of Fig. 6 which shows the association between the setting conditions to be set and the numerical information in each of the door open mode and the door close mode of the first embodiment of the present disclosure, the shooting method of the shooting unit 206 for ID "A001" in the table is set to continuous shooting mode, the exposure time of the shooting unit 206 for ID "A002" is selected to be, for example, 20 ms, and the gain of the shooting unit 206 for ID "A004" is selected to be ×2 (for example, 6 dB). Furthermore, the brightness of the lighting unit 205 for ID "A003" is set to, for example, 500 Lx (lux).

[0059] In this door open recognition mode, compared to the door closed recognition mode, photographing is performed continuously in as short a time as possible. For example, photographs are performed multiple times from the moving state of food 107 at the moment the user places it in heating cooking chamber 104 until the user places food 107 in heating cooking chamber 104 and closes door panel 101, to the state of food being placed in heating cooking chamber 104, and the recognition process is performed multiple times, so that photographing attempts can be made multiple times so that recognition of the heating control information affixed to food 107 can be confirmed as quickly as possible.

[0060] That is, in order to capture images of the food 107 from the moment the user places it in the cooking chamber 104 while it is moving to the moment the food is placed in the cooking chamber 104, to more reliably recognize the heating control information, the door open recognition mode is set to capture more images, the exposure time is shorter, the lighting brightness is brighter, and the gain is higher than in the door closed recognition mode.

[0061] In the door open recognition mode, the recognition processing unit 208 does not perform shading correction (processing for removing unevenness from an image having uneven density) for ID "B001" in the table of FIG. 6 as image pre-processing.

[0062] In the door open recognition mode, when the recognition processing unit 208 determines that the reading of the heating control information has been successful (S504), the main body control unit 202 notifies the user of this fact using the display unit 203b, a buzzer, or the like (S505). This determines the heating control information for heating. For example, the display unit 203b displays "Recognition OK," and the buzzer sounds, for example, a single beep.

[0063] The user is informed by a display and audio that cooking appliance 100 has recognized the heating control information and is ready to heat, and then after the user closes door panel 101 and door opening / closing detection unit 204 detects that the door is closed (S506), the user can press start button 403 (S507) and start cooking food 107 (S508) without having to make cumbersome settings such as heating time and heating power on operation unit 203a.

[0064] In addition, in the door open recognition mode, the recognition processing unit 208 may notify the user that the heating control information has been successfully read (S505) after the user closes the door panel 101 and the door open / close detection unit 204 detects that the door is closed (S506).

[0065] On the other hand, in the door open recognition mode, if the recognition processing unit 208 determines that it has failed to read the heating control information before the user closes the door panel 101 (S504), after the user closes the door panel 101 and the door open / close detection unit 204 detects that the door is closed (S509), the recognition mode setting unit 207 sets the door closed recognition mode (S510), and the photographing unit 206 photographs the inside of the heating cooking chamber 104 and performs recognition processing of the heating control information.

[0066] As shown in the table diagram of Fig. 6 which shows the association between the setting conditions to be set and the numerical information in each of the door open mode and the door close mode of the first embodiment of the present disclosure, the shooting method of the shooting unit 206 for ID "A001" in the table is set to one-shot shooting mode, the exposure time for ID "A002" is selected to be, for example, 100 ms, and the gain for ID "A004" is selected to be x1 (for example, 3 dB). Furthermore, the brightness of the lighting unit 205 for ID "A003" is set to, for example, 200 Lx (lux).

[0067] In this door-closed recognition mode, compared to the door-opened recognition mode, photographing is performed for as long as possible in one-shot photographing mode, and photographing is performed reliably while food 107 is placed in cooking chamber 104, for example, so that the heating control information affixed to food 107 can be reliably recognized.

[0068] In other words, in order to take as many shots as possible in one-shot shooting mode and to reliably recognize the heating control information, the number of shots taken in the door closed recognition mode is set to be fewer, the exposure time is longer, the lighting brightness is darker, and the gain is lower, compared to the door open recognition mode.

[0069] In addition, it is desirable that the numerical value of exposure time×illumination brightness×gain be the same in both the door open recognition mode and the door closed recognition mode (the numerical value is 20000 in FIG. 6 of this embodiment).

[0070] In the door close recognition mode, the recognition processing unit 208 performs image pre-processing by carrying out shading correction (processing for removing unevenness from an image having uneven density) for ID "B001" in the table of FIG.

[0071] In the door close recognition mode, when the recognition processing unit 208 determines that the reading of the heating control information has been successful (S511), the main body control unit 202 notifies the user of this fact using the display unit 203b, a buzzer, or the like (S512). This determines the heating control information for heating. In the case of the display unit 203b, for example, "Recognition OK" or "OK" is displayed, and in the case of the buzzer, for example, a "beep" sound is emitted once. Since the user can know from the display or sound that the cooking device 100 has recognized the heating control information and is in a state where heating is possible, the user can press the start button 403 (S507) to start cooking the food 107 without having to make troublesome settings such as the heating time and heating power using the operation unit 203a (S508).

[0072] In addition, in the door open / close recognition mode, if the recognition processing unit 208 determines that reading of the heating control information has failed (S511), the main body control unit 202 notifies the user of this fact by the display unit 203b, a buzzer, or the like (S512). This determines the heating control information for heating. For example, the display unit 203b may display "Recognition NG" or "NG", and for example, the buzzer may sound "beep beep beep beep" three times. As another notification method, a voice notification such as "Recognition error" may be used.

[0073] The user can know from the display and sound that cooking device 100 is unable to recognize the heating control information and is therefore unable to heat, so that the user can reopen door panel 101, remove food 107, check the label affixed to food 107 again, or place food 107 back into cooking chamber 104, and so on, thereby reading the heating control information again.

[0074] Furthermore, if a memory for storing captured images is built into cooking appliance 200, or an external storage medium such as an SD card or USB memory can be inserted and removed from cooking appliance 200, it is possible to store images that have been successfully read and images that have failed to be read in both door open recognition mode and door closed recognition mode, and by reading and analyzing the stored images, it is also possible to analyze the cause of a reading error.

[0075] As described above, it is possible to read the heating control information of the heated object when the door is opened and when it is closed. If the heating control information of the heated object can be read when the door is open, a notification is issued that the heating control information has been read. This allows the user to read the heating control information as much as possible during the series of actions of placing the heated object in the heating chamber and closing the door, without the user having to take the troublesome action of bringing letters or codes related to the heating control information attached to the heated object close to the photographing unit, thereby enabling quick heating and cooking.

[0076] In addition, if the heating control information of the heated object cannot be read when the door is opened, but can be read when the door is closed, by notifying the user that the heating control information has been read, the heating control information that could not be read when the door was open can be read more reliably with the door closed.This means that the user can read the heating control information as much as possible during the series of actions of placing the heated object in the heating chamber and closing the door, without having to take the troublesome action of bringing letters or codes related to the heating control information attached to the heated object close to the photographing unit, thereby enabling quick heating and cooking.

[0077] In addition, if the heating control information of the heated object cannot be read when the door is opened and the heating control information cannot be read when the door is closed, a notification that the heating control information could not be read is displayed, allowing the user to open the door again, remove the heated object, check the label affixed to the heated object again, or place the heated object back in the heating chamber, and so on, thereby reading the heating control information again.

[0078] In addition, by differentiating the mode for reading the heating control information of the heated object when the door is open from the mode for reading the heating control information of the heated object when the door is closed, the heating control information can be read more reliably either when the door is open or when the door is closed.

[0079] In addition, the mode in which the heating control information of the heated object is read when the door is open takes more photographs than the mode in which the heating control information of the heated object is read when the door is closed, so that the heating control information can be read more reliably either when the door is open or when the door is closed.

[0080] In addition, the mode in which the heating control information of the heated object is read when the door is open has a shorter exposure time than the mode in which the heating control information of the heated object is read when the door is closed, so that the heating control information can be read more reliably either when the door is open or when the door is closed.

[0081] In addition, the mode that reads the heating control information of the heated object when the door is opened is the same as the mode that reads the heating control information of the heated object when the door is closed. By making the illumination brighter than in the mode for reading the heating control information, the heating control information can be read more reliably when the door is opened or closed. [Industrial Applicability]

[0082] As described above, the present disclosure provides a cooking device that performs heating control processing in association with heating control information of an object to be heated read by a camera or the like, eliminates the need for cumbersome input work, and enables a user to easily cook food based on a recognition mode of door open or door closed. Thus, the present disclosure is widely applicable to cooking devices such as microwave ovens. [Explanation of symbols]

[0083] 100,200,300 Heating cooker 101 Door Panel (Door) 102,203b Heating information display section (display section) 103, 203a Selection section (operation section) 104 Heating storage (heating storage) 105,205 Lighting Department 106, 206, 306 Camera (photography section) 107,301 Food (heated items) 201 Heating section 202 Main body control unit 204 Door opening / closing detector 207 Recognition mode setting section 208 Recognition processing section 400 Operation display panel 401 LED display panel (display section) 402 Number buttons (operation section) 403 Start button (operation part)

Claims

[Claim 1] A heating chamber in which an object to be heated is stored; A heating unit that heats the object to be heated stored in the heating chamber; A main body control unit that controls heating by the heating unit; A door opening / closing detection unit that detects the opening / closing state of the door of the heating chamber; A lighting unit that illuminates the inside of the heating chamber; An imaging unit that images the inside of the heating chamber, The heating control information of the object to be heated can be read when the door is opened, The illumination unit is turned on when the door is opened and when the door is closed, The brightness of the illumination unit when the door is open is brighter than the brightness of the illumination unit when the door is closed.

Images