JP7213419B2 - heating cooker - Google Patents

Description

The present disclosure provides two types of recognition modes, in-fridge recognition and hand-held recognition, for identifying characters and codes printed on food labels by a camera provided in a heating cooker. Concerning vessels.

A microwave oven is known as an example of a heating cooker. In a microwave oven, a user inputs a heating time and the like, and then presses a button for starting heating to perform cooking. At stores such as convenience stores and supermarkets that sell boxed lunches or side dishes in containers, clerk (user) may provide a service to cook the purchased food in a microwave oven.

A service of such heat cooking will be described. In general, the optimal heating time for heating in a microwave oven is indicated on containers of boxed lunches and side dishes. The user sees the display and sets the heating time in the microwave oven to heat the object. Numerical keys and the like are provided in the operation part of the microwave oven, and the heating time (minutes, seconds) is set.

Further, the microwave oven has a plurality of operation buttons, and each operation button may be assigned a different heating time. In this case, the user can select the button corresponding to the food to be heated to heat the food with heating control suitable for the food and provide the food to the customer.

However, for the user, such a microwave oven has a problem that it is troublesome because it is necessary to input the heating time and the like.

For this reason, a technology has been proposed in which the heating time and the like are automatically set in the microwave oven. For example, in Patent Document 1, a camera is mounted on a heating cooker, an object to be heated is photographed with the camera before cooking, and the photographed image is recognized in a microwave oven, so that an appropriate image is obtained according to the object to be heated. Techniques have been proposed in which heating takes place.

In addition, in Patent Document 2, a scanning device such as a barcode reader is installed in a heating cooker, and by holding the object to be heated over the scanning device, heating can be started by closing the door of the microwave oven without pressing the operation button. Such techniques have been proposed.

Japanese Patent Application Laid-Open No. 2001-324146 Utility Model Registration No. 3217241

However, in such a conventional technique, when a label with heating control information is attached to the side or bottom of the object to be heated, or when the label is outside the range captured by the camera, , cannot be recognized. In addition, in order to recognize the object to be heated, it is necessary to hold the object to be heated over a scanning device such as a barcode each time. There is a problem that the act of holding up is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and provides a heat cooker that allows the user to recognize the heating control information of the object to be heated and to easily heat and cook the object without imposing a burden on the user as much as possible. for the purpose.

In order to solve the above conventional problems, the heating cooker of the present invention comprises a heating chamber in which an object to be heated is stored, a heating unit for heating the object to be heated stored in the heating chamber, and the heating unit A main body control unit that controls heating by, an operation unit that allows the user to input settings, a door open/close detection unit that detects the open/closed state of the door of the heating chamber, and an imaging unit that photographs the inside of the heating chamber. and heating control information for the object to be heated from the image photographed by the photographing unit based on whether or not a predetermined key of the operation unit is operated and whether the door is opened or closed detected by the door open/close detector. It is characterized in that it is determined whether the reading recognition processing mode is an automatic recognition mode or a hand-held recognition mode.

According to such a configuration, the heating control process is performed by performing the recognition process corresponding to the heating control information of the object to be heated based on the open/closed state of the door of the heating chamber and whether the automatic recognition mode or the hand-held recognition mode is selected. is done. As a result, the heating control information of the object to be heated can be recognized with as little burden as possible on the user, and cooking can be easily performed.

A diagram showing the appearance of the heating cooker according to Embodiment 1 of the present disclosure Block diagram showing the functional configuration of the heating cooker according to Embodiment 1 of the present disclosure A diagram showing an example in which an object to be heated is recognized by placing it in the cooking chamber of the heating cooker according to Embodiment 1 of the present disclosure, and an example in which the object to be heated is recognized while being held by hand. A diagram showing an example of an operation panel of the heating cooker according to Embodiment 1 of the present disclosure Flowchart showing image recognition processing in the heating cooker according to Embodiment 1 of the present disclosure Flowchart showing image recognition processing when a recognition error occurs in the heating cooker according to the second embodiment of the present disclosure Block diagram showing a functional configuration of a heating cooker according to Embodiment 3 of the present disclosure A diagram showing an example of a table regarding settings in the automatic recognition mode and the handheld recognition mode according to the third embodiment of the present disclosure

A first invention comprises a heating chamber in which an object to be heated is stored, a heating unit for heating the object to be heated stored in the heating chamber, a main body control unit for controlling heating by the heating unit, and a use a door open/close detection unit for detecting the open/closed state of the door of the heating chamber; and a photographing unit for photographing the interior of the heating chamber. The mode for reading the heating control information of the object to be heated from the image photographed by the photographing unit according to the presence/absence of operation and the open/closed state of the door detected by the door opening/closing detector is the automatic recognition mode or the recognition process. Determines hand-held recognition mode.

With such a configuration, the heating control process is performed by performing the corresponding recognition process from the heating control information of the object to be heated based on the opening/closing state of the door of the heating chamber and whether the automatic recognition mode or the hand-held recognition mode is selected. will be As a result, the heating control information of the object to be heated can be recognized with as little burden as possible on the user, and cooking can be easily performed.

According to a second invention, in the first invention, a recognition mode determination unit that determines whether the automatic recognition mode or the handheld recognition mode is selected, and a recognition processing unit that recognizes heating control information of the object to be heated. The recognition processing unit recognizes the heating control information of the object to be heated from the image captured by the imaging unit based on the recognition mode determined by the recognition mode determination unit.

With such a configuration, the heating control process is performed by performing the corresponding recognition process from the heating control information of the object to be heated based on the opening/closing state of the door of the heating chamber and whether the automatic recognition mode or the hand-held recognition mode is selected. will be As a result, the heating control information of the object to be heated can be recognized with as little burden as possible on the user, and cooking can be easily performed.

In a third aspect based on the first or second aspect, the predetermined key has a key for automatic recognition mode and a key for handheld recognition mode, and the respective keys are arranged at different positions. It is characterized by

With such a configuration, it is possible to prevent the user from mistakenly operating the automatic recognition mode and the hand-held recognition mode, and in the hand-held recognition mode, recognition processing can be performed so that the user can easily operate the food while holding it in his/her hand. You can get a cooker.

In a fourth aspect based on the third aspect, when the state of the door detected by the door open/close detector is determined to be open and the hand-held recognition mode key is pressed, the hand-held recognition mode is determined. It is characterized by

With such a configuration, it is possible to obtain a heating cooker capable of easily cooking an object to be heated without the user having to press the heating control information repeatedly on the operation panel as much as possible.

In a fifth aspect based on the third or fourth aspect, when the state of the door detected by the door open/close detector is determined to be closed and the key for the automatic recognition mode is pressed, the automatic recognition mode is entered. It is characterized by being determined.

With such a configuration, when the handheld recognition mode is not used, it is possible to obtain a heating cooker that can easily heat and cook the object to be heated in the automatic recognition mode.

In a sixth invention, in any one of the first to fifth inventions, when the body control portion determines that the hand-held recognition mode is set, the state of the door detected by the door open/close detection portion is closed. When the time comes, the heating of the object to be heated is started based on the heating control information of the object to be heated read when the door is opened.

With such a configuration, it is possible to obtain a heating cooker capable of easily cooking an object to be heated without the user having to press the heating control information repeatedly on the operation panel as much as possible.

In a seventh invention based on any one of the first to sixth inventions, when the body control unit determines that the automatic recognition mode is set, the state of the door detected by the door open/close detection unit is closed. When the time comes, the heating of the object to be heated is started based on the heating control information of the object to be heated read after the door is closed.

With such a configuration, when the handheld recognition mode is not used, it is possible to obtain a heating cooker that can easily heat and cook the object to be heated in the automatic recognition mode.

In an eighth invention, in any one of the second to seventh inventions, setting change is performed by changing the setting of at least one of the photographing unit and the recognition processing unit between the automatic recognition mode and the hand-held recognition mode. and heating the object to be heated based on the heating control information read by the recognition processing unit according to the setting change state of the setting change unit.

With such a configuration, it is possible to perform optimal recognition processing in the recognition processing of each of the automatic recognition mode and the hand-held recognition mode. It is possible to obtain a heating cooker that reduces the operational burden.

According to a ninth invention, in the eighth invention, the setting change section changes the exposure time when the photographing section takes a picture between the automatic recognition mode and the hand-held recognition mode.

With such a configuration, the heating control information can be read as accurately as possible in the automatic recognition mode and the handheld recognition mode.

A tenth invention is characterized in that in the eighth or ninth invention, the setting change section causes the recognition processing section to perform different image extraction processing when photographing in the automatic recognition mode and the hand-held recognition mode. do.

With such a configuration, the heating control information can be read as accurately as possible in the automatic recognition mode and the handheld recognition mode.

In an eleventh invention, in any one of the first to tenth inventions, the body control unit prompts guidance to a hand-held recognition mode when the recognition processing unit makes a recognition error in the automatic recognition mode. characterized by

With such a configuration, even if recognition is not possible in the automatic recognition mode, it is possible to guide the user to the hand-held recognition mode for optimum recognition processing. Therefore, it is possible to obtain a heating cooker that minimizes the operation burden at the time of misidentification.

In a twelfth invention based on any one of the first to eleventh inventions, the recognition processing unit performs the recognition processing until the recognition processing succeeds until a predetermined time elapses or within a predetermined number of times in the handheld recognition mode. Characterized by repetition.

With such a configuration, it is possible to obtain a heating cooker that minimizes the operational burden on the user even when the food cannot be properly recognized in the manual recognition mode.

Hereinafter, examples of embodiments of the present disclosure will be described with reference to the drawings. It should be noted that the present disclosure is not limited by the following embodiments.

(Embodiment 1)
FIG. 1 is a diagram showing the appearance of a heating cooker according to Embodiment 1 of the present disclosure.

As shown in FIG. 1, the heating cooker 100 is provided with a housing 111 for storing food (object to be heated) and a door panel (door) 101 for taking in and out the food. Heating cooker 100 has heating information display section 102 and selection section (operation section) 103 above door panel 101 in housing 111 .

As will be described later, the heating cooker 100 reads the heating time according to the food from a display such as a label attached to the food, and heats and cooks the food in the read heating time. The read heating time is displayed in the heating information display section 102 .

The selection unit 103 has a "menu" button for the user to select a menu corresponding to the food to be heated, a numeric button for manually setting the heating time, and a " It has a minute button as well as a second button. The selection unit 103 also has a “heating start button” for starting heating and a “heating stop button” for stopping heating. The selection unit 103 allows the user to input various settings including the above.

The heating cooker 100 also includes a heating cooking chamber (heating chamber) 104 inside the housing 111 . The heating cooking chamber 104 includes an illumination unit 105 provided on the inner side surface and a camera 106 provided on the inner upper surface. By installing the camera 106 in the upper part of the cooking chamber 104, it is possible to photograph the entire inside of the chamber from the upper part of the chamber. Camera 106 is electrically connected to a control circuit (not shown) included in cooker 100 and controlled by the control circuit.

Cooker 100 captures an image of food (object to be heated) 107 stored in cooking oven 104 using camera 106, and detects heating information related to food 107 from captured image information. It is configured.

Moreover, the heat cooker 100 is provided with the illumination part 105 provided in the inside surface of the heat cooker 104 as mentioned above. In the example of FIG. 1, the illumination unit 105 is arranged on the side surface of the heating cooking chamber 104, and illuminates the entire inside of the heating cooking chamber 104 from the inner side surface of the chamber.

FIG. 2 is a block diagram showing the functional configuration of the heating cooker according to Embodiment 1 of the present disclosure.

As shown in FIG. 2, the heating cooker 200 includes a heating unit 201, a body control unit 202, an operation unit 203, a door open/close detection unit 204, an imaging unit 205, a recognition mode determination unit 206, and a recognition process. 207.

The heating unit 201 is made up of, for example, a magnetron or the like, and supplies high frequency waves to the food 107 placed in the cooking chamber 104 to heat the food.

The body control unit 202 controls the heating unit 201 based on the internal state of the heating cooking chamber 104 and the heating control information of the food to be heated. The heating control information includes heating power (wattage) and heating time according to the heating power.

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

The door open/close detection unit 204 detects whether the door panel 101 of the heating cooking chamber 104 is open or closed in the main body control unit 202 .

The photographing unit 205 is composed of, for example, a CMOS (Complementary Metal Oxide Semiconductor) image sensor, a CCD (Charge Coupled Device) image sensor, or the like, and photographs the interior of the cooking chamber 104 . The imaging unit 205 has the above-described camera 106 and control circuit.

A recognition mode determination unit 206 determines whether the inside recognition mode (automatic recognition mode) or hand-held recognition mode is selected according to the open/closed state of the door panel 101 detected by the door open/close detection unit 204 and the button operation pressed by the operation unit 203. do.

Based on the recognition mode determined by the recognition mode determination unit 206, the recognition processing unit 207 extracts heating control information (for example, heating control information) written on the food label attached to the food 107 from the image captured by the imaging unit 205. Output 900 W, heating time of 2 minutes and 30 seconds (heating wattage, heating time, etc.) is detected, and analysis and recognition processing is performed as to whether it is character information or code information (information related to control including numbers).

As a food label character recognition method, for example, a method of detecting heating control information surrounded by a frame in the food label or a method of detecting the outline of the food label may be used. Further, the character information may include not only food heating control information but also image information of the entire food and related food type, or information on the shape and expiration date of the food. Also, as a method of recognizing code information, a method of recognizing a general bar code or graphic code may be used.

FIG. 3 shows a case of recognizing food 301 (object to be heated) placed in the cooking chamber of the heating cooker according to Embodiment 1 of the present disclosure, and a case of recognizing food 302 (object to be heated) while holding it by hand, for example. It is a figure which shows the example in the case of performing.

In FIG. 3A, as an example, food 301, which is a lunch box, is recognized by a camera 306 attached to the upper surface of the inside of the heating cooker 300, and the heating control information attached to the food 301 is automatically recognized. It shows the case of heating. Also, in FIG. 3B, as an example, while holding a food 302 such as soup with a small top surface of the food and a heating control information label attached to the side, etc., A case is shown in which the attached camera 306 is held over a label portion to which the heating control information is attached for recognition.

In this example, the food is held over the top surface while being held by hand, but since the label with the heating control information is not necessarily on the top surface of the food 302, the heating control information is not added. When a label is attached to the side or bottom surface of the food 302, the side or bottom surface of the food 302 may be held over the camera 306. It can be in the form of

FIG. 4 is a diagram showing an example of an operation panel of the heating cooker according to Embodiment 1 of the present disclosure. The operation panel 400 includes an LED display panel 401 for displaying heating control information, numeric buttons (operation unit) 402 for setting various cooking menus and performing special operations, and a recognition processing unit 207 for starting or setting the determined heating process. It comprises a start button (operation unit) 403 for confirming, a hand-holding recognition button (operation unit) 404 for recognizing food in hand, and the like.

Note that the handheld recognition button 404 and the start button 403 are arranged at different positions. In this embodiment, the operation panel 400 is arranged from approximately the left end to the approximately right end of the front upper portion of the heating cooker 100 , the handheld recognition button 404 is on the left side of the operation panel 400 , and the start button 403 is on the operation panel 400 . placed on the right. While holding the food item 302 with the right hand, which is the dominant arm of most people, and holding the label of the food item 302 over the camera 306, the hand-held recognition button 404 can be pressed with the left hand. The start button 403 is provided at a position where it can be easily pressed with the right hand, which is the dominant arm of most people, after the door panel 101 is closed.

Since a device such as a microwave oven is mainly for heating control, only the LED display panel 401 is provided as a display for performing various operations. Therefore, in most maintenance operations, setting is performed by repeatedly pressing the numeric buttons 402, the start button 403, and the like, which is extremely burdensome and troublesome for the user.

FIG. 5 is a flowchart showing image recognition processing in the heating cooker according to Embodiment 1 of the present disclosure.

First, the door open/close detector 204 determines whether or not the door panel 101 is open based on the state of the door switch (S501). If the door panel 101 is open (YES in S501), the process proceeds to S502. On the other hand, if the door panel 101 is closed (NO in S501), the door open/close detector 204 repeats S501 and waits for the door panel 101 to open.

In S502, the body control unit 202 determines whether or not the hand-held recognition button 404, which is a predetermined key for the hand-held recognition mode on the operation panel 400, has been pressed by the operation unit 203, and determines whether the hand-held recognition button 404 has been pressed. If so (YES in S502), the process proceeds to S503.

In step S503, the recognition mode determination unit 206 determines the "hand-held recognition mode" based on the information that the door open/close detection unit 204 indicates that the door is "open" and that the hand-held recognition button 404 is pressed. and proceed to S504.

In S504, the imaging unit 205 uses the camera 306 to photograph the object to be heated 302 held in the hand based on the “hand-held recognition mode” determined by the recognition mode determination unit 206, and performs recognition processing. Execute S505.

In S<b>505 , the recognition processing unit 207 determines whether the heating control information has been correctly read from the image captured by the camera 306 . If the heating control information has been correctly recognized within the predetermined number of times (YES in S505), the process proceeds to S506. If the heating control information is not correctly recognized within a predetermined number of times (NO in S505), it cannot be correctly recognized in the hand-held recognition mode, so an error message indicating recognition error is displayed or guidance is given to manual operation (S514).

In S506, the heating control information recognized in S505 is confirmed, and the process proceeds to S507.

In S507, the process waits until the door panel 101 is again in the "closed" state. If the door panel 101 is "closed" (YES in step 507), the process proceeds to step S508 where heating is started when the door panel 101 is "closed" (YES in step 507). If the door panel 101 is open (NO in S507), the door open/close detector 204 repeats S507 and waits for the door panel 101 to close.

In S508, the heating unit 201 starts heating when the door panel 101 is closed.

On the other hand, in S502, if the hand-held recognition button 404 on the operation panel 400 has not been pressed by the operation unit 203 (NO in S502), the process proceeds to S509.

In S509, it is determined that the door open/close detector 204 of the door panel 101 is in the "closed" state, and that the start button 403, which is a predetermined key in the automatic recognition mode of the operation panel 400, is pressed. If so, the process proceeds to S510. If the door panel 101 is open or the start button 403 of the operation panel 400 is not pressed (NO in S509), S509 is repeated until the door panel 101 is closed and the start button is pressed. wait to become

In S510, the recognition mode determination unit 206 determines "automatic recognition mode", and proceeds to S511.

In S511, the photographing unit 205 takes an image of the object to be heated 301 that is left in the refrigerator based on the "automatic recognition mode" determined by the recognition mode determination unit 206, and performs recognition processing in S512. proceed to

In S512, the recognition processing unit 207 determines whether the heating control information is correctly read from the image captured by the camera. If the heating control information has been correctly recognized within the predetermined number of times (YES in S512), the process proceeds to S513. If the heating control information is not correctly recognized within a predetermined number of times (NO in S512), it cannot be correctly recognized in the automatic recognition mode, so an error message indicating recognition error is displayed or guidance is given to manual operation (S514).

In S513, the heating control information recognized in S512 is determined, and the process proceeds to S508, where the heating unit 201 starts heating.

As described above, according to the present embodiment, when the heating control information (heating character information, bar code, graphic code information, etc.) is written on the top surface of the food 301, recognition is performed in the automatic recognition mode, and the side surface is If it is attached to a place where you go to read it, such as the bottom or the bottom, it is possible to read the heating control information no matter where it is written by recognizing it in the hand-held recognition mode, and it is possible for the customer to operate it. can be made unnecessary as much as possible.

In this embodiment, recognition mode determination unit 206 sets the hand-held recognition mode to the case where hand-held recognition button 404 of operation unit 203 is explicitly pressed. However, the invention is not limited to this example.

For example, the recognition mode may be determined automatically according to the user's behavior, the open/close state of the door panel 101, the state of the body control unit 202 before and after heating (before cooking, after cooking), and the like.

Also, the start of heating has been described using the pressing of the recognition button or the start button as a trigger. In addition, the presence or absence of door open/close detection was used to determine the recognition mode, but this is not the only option. may

As described above, depending on whether or not a predetermined key of the operation unit such as the hand-held recognition button or the start button is operated, and whether the door is opened or closed as detected by the door open/close detection unit, the image captured by the image capturing unit is converted to the heated object. By determining whether the mode for reading and recognizing object heating control information is the automatic recognition mode or the hand-held recognition mode, the heated object can be heated based on the open/closed state of the door of the heating chamber and whether the automatic recognition mode or the hand-held recognition mode. A heating control process is performed by performing a recognition process corresponding to each object based on the heating control information of the object. As a result, the heating control information of the object to be heated can be recognized with as little burden as possible on the user, and cooking can be easily performed.

Further, it has a recognition mode determination unit that determines whether the automatic recognition mode or the handheld recognition mode, and a recognition processing unit that recognizes the heating control information of the object to be heated, and the recognition processing unit is determined by the recognition mode determination unit. Based on the recognition mode, by recognizing the heating control information of the object to be heated from the image captured by the imaging unit, the object to be heated can Heating control processing is performed by performing recognition processing corresponding to each of the heating control information. As a result, the heating control information of the object to be heated can be recognized with as little burden as possible on the user, and cooking can be easily performed.

In addition, it is possible to handle labels affixed to various places on the container, and the user can easily heat and cook various objects to be heated regardless of the type and size of the food. You can get a cooker.

In addition, for foods that have a label attached to the top of the food, recognition processing is performed in the in-fridge recognition mode, which does not place a burden on the user, and the label is attached to the side or bottom of the food. For food, recognition processing can be performed in a hand-held recognition mode in which the user can flexibly respond with as little burden as possible.

(Embodiment 2)
A microwave oven, which is an example of a cooking device according to Embodiment 2 of the present disclosure, will be described. In Embodiment 2 of the present disclosure, descriptions of the same structure, functional configuration, or control method as in Embodiment 1 will be omitted.

FIG. 6 is a flowchart showing image recognition processing in the heating cooker according to Embodiment 2 of the present disclosure. The difference from the flowchart in FIG. 5 is that in the automatic recognition mode, if the food 301 is not correctly recognized by the recognition processing unit 207, guidance to the handheld recognition mode is prompted. In addition, in FIG. 6, since the processing is almost the same as that in the flowchart of FIG. 5, only different parts will be explained.

If the recognition mode determination unit 206 determines that the "handheld recognition mode" is selected, and if the heating control information is correctly recognized within the predetermined time (YES in S605), the process proceeds to S608. If the heating control information has not been correctly recognized within the predetermined time (NO in S605), the process proceeds to S606. In S606, it is determined whether or not a predetermined time has passed. If the predetermined time has elapsed, correct recognition cannot be performed in the hand-held recognition mode, so an error display indicating recognition error or guidance to manual operation is performed (S607). As for the shooting method, a shooting method of taking a snapshot each time may be used, or a shooting method using a stream (moving image format) may be used in order to shorten the recognition time.

When the recognition mode determination unit 206 determines that the “automatic recognition mode” is selected, the photographing unit 205 detects the object to be heated that is left in the refrigerator based on the “automatic recognition mode” determined by the recognition mode determination unit 206. 301 is photographed by the camera, and the process proceeds to S614 in which recognition processing is performed.

In S614, the recognition processing unit 207 determines whether the heating control information has been correctly read from the image captured by the camera. If the heating control information is correctly recognized (YES in S614), the process proceeds to S615. If the heating control information is not correctly recognized within the predetermined number of times (NO in S614), it cannot be correctly recognized in the automatic recognition mode, so the process proceeds to S616.

In S616, since correct recognition cannot be performed in the automatic recognition mode, the user is guided to the handheld recognition mode in which flexible recognition by the user is possible, and the user is urged to press the handheld recognition button 404 in S602.

If the heating control information cannot be correctly recognized in the automatic recognition mode, guidance to the hand-held recognition mode by the main body control unit 202 can be, for example, by displaying a message to that effect on the LED display panel 401 or by pressing the hand-held recognition button. 404 may be lit or blinked to guide the user, or voice may be used to guide the user to the hand-held recognition mode.

In this example, the flow is guided to S602 where it is necessary to press the hand-held recognition button 404 in order to clearly guide the hand-held recognition. This is self-evident, and if the user finds it troublesome to even operate the buttons, the user may be guided directly to S603.

In this way, when the recognition processing unit makes a recognition error in the automatic recognition mode, the body control unit 202 prompts guidance to the hand-held recognition mode. Able to recognize and heat food properly.

(Embodiment 3)
A microwave oven, which is an example of a cooking device according to Embodiment 3 of the present disclosure, will be described. In Embodiment 3 of the present disclosure, descriptions of the same structure, functional configuration, or control method as in Embodiment 1 will be omitted.

Heating cooker 700 of Embodiment 3 of the present disclosure differs from Heating cooker 200 of Embodiment 1 in that processing of setting change unit 708 is provided after recognition mode determination unit 706 . Specifically, when the recognition mode determination unit 706 determines that the automatic recognition mode or the hand-held recognition mode is selected, the camera shooting parameters and the recognition processing method are changed in order to improve the recognition accuracy. It is to reduce the risk of generating , and to prevent overheating. Therefore, in this embodiment, this point will be mainly described.

FIG. 7 is a block diagram showing a functional configuration of a heating cooker according to Embodiment 3 of the present disclosure.

As shown in FIG. 7 , a heating cooker 700 according to Embodiment 3 of the present disclosure includes a heating unit 701, a body control unit 702, an operation unit 703, a door opening/closing detection unit 704, an imaging unit 705, a recognition It has a mode determination unit 706 , a recognition processing unit 707 , and a setting change unit 708 .

The setting change unit 708 changes the setting parameters of the camera and control processing when the recognition mode determination unit 706 determines that the automatic recognition mode is selected, and changes the setting parameters of the camera and control processing when the recognition mode is determined as the handheld recognition mode. , recognition processing suitable for each mode can be performed in the recognition processing unit 707 .

Specifically, for example, when the recognition mode determination unit determines that the automatic recognition mode is selected, in the automatic recognition mode, the door panel 101 is closed and the food 301 is always stationary on the bottom surface of the heating cooking chamber 104. In this state, the lighting unit 105 makes the inside of the refrigerator bright and a clear image can be captured, thereby reducing erroneous recognition and improving recognition accuracy.

However, since hand-held recognition mode is greatly affected by camera shake, in order to obtain a clear image with less blurring, it is better to shorten the exposure time of the camera to obtain a clearer image with less blurring.

FIG. 8 is a table showing association between each setting item set in the setting change section 708 of FIG. 7 and numerical information to be set in each of the recognition mode and the handheld recognition mode.

For example, when the ID in FIG. 8 is “A001”, the “image extraction process” in the recognition processing unit 707 is performed in the automatic recognition mode because the image is stationary and stationary, so the image captured by the imaging unit 705 is extracted. In addition to "trapezoidal correction", "trimming" processing is also performed. In hand-held recognition mode, the food image is always moving, so only "trapezoidal correction" processing is performed. .

Also, when the ID is "A002", the "exposure time" in the photographing unit 705 needs to be set to "250L x 300ms" in the automatic recognition mode. , "400Lx 200ms".

In this way, in the automatic recognition mode and the hand-held recognition mode, the settings of at least one of the photographing unit 705 and the recognition processing unit 707 are changed by the setting change unit 708, and the setting change state of the setting change unit 708 changes the recognition By heating the food based on the heating control information read by the processing unit 707, the heating control information can be read as accurately as possible in the automatic recognition mode and the handheld recognition mode, and the food can be appropriately heated.

In addition, by making the image extraction processing at the time of photographing in the recognition processing unit 707 different between the automatic recognition mode and the hand-held recognition mode, the heating control information can be read as accurately as possible in the automatic recognition mode and the hand-held recognition mode. .

In addition, by making the exposure time for photographing in the photographing unit 705 different between the automatic recognition mode and the hand-held recognition mode, the heating control information can be read as accurately as possible in the automatic recognition mode and the hand-held recognition mode.

It should be noted that the configurations disclosed in the first to third embodiments may be combined arbitrarily.

As described above, the present disclosure performs heating control processing in association with the heating control information of the object to be heated read by a camera or the like, eliminates the need for troublesome input work, and allows the user to adjust various sizes and sizes. To provide a heat cooker, a control method of the heat cooker, and a heat cooking system capable of easily cooking foods corresponding to types based on a recognition mode suitable for each food. Therefore, the present disclosure is widely applicable to heating cookers such as microwave ovens.

100, 200, 300, 700 heating cooker 101 door panel (door)
102 heating information display section 103 selection section (operation section)
104 heating cooking chamber (heating chamber)
105 lighting unit 106, 306 camera (image capturing unit)
107 food (object to be heated)
201,701 heating unit 202,702 body control unit 203,703 operation unit 204,704 door opening/closing detection unit 205,705 imaging unit 206,706 recognition mode determination unit 207,707 recognition processing unit 301,302 food (object to be heated)
400 Operation panel 401 LED display panel 402 Number buttons (operation unit)
403 Start button (operation unit)
404 handheld recognition button (operation unit)
708 setting change unit

Claims (12)

a heating chamber in which objects to be heated are stored;
a heating unit that heats the object to be heated stored in the heating chamber;
a body control unit that controls heating by the heating unit;
an operation unit that allows a user to input settings;
a door open/close detection unit that detects an open/closed state of the door of the heating chamber;
A photographing unit for photographing the inside of the heating chamber,
The heating control information of the object to be heated is read and recognized from the image photographed by the photographing unit according to whether or not a predetermined key of the operation unit is operated and whether the door is opened or closed detected by the door opening/closing detection unit. In a heating cooker characterized by determining whether the mode to be performed is an automatic recognition mode or a hand-held recognition mode ,
The heating cooker is characterized in that the state of the door detected by the door open/close detector is determined to be open, and the hand-held recognition mode is determined when the predetermined key is pressed. a recognition mode determination unit that determines whether the automatic recognition mode or the handheld recognition mode;
a recognition processing unit that recognizes the heating control information of the object to be heated,
2. The apparatus according to claim 1, wherein the recognition processing unit recognizes the heating control information of the object to be heated from the image captured by the imaging unit based on the recognition mode determined by the recognition mode determination unit. heating cooker. 3. The heat cooking according to claim 1 or 2, wherein the predetermined keys include a key for automatic recognition mode and a key for handheld recognition mode, and the respective keys are arranged at different positions. vessel. 4. The heating cooking according to claim 3, wherein the state of the door detected by the door opening/closing detection unit is determined to be open, and the hand-held recognition mode is determined when the key for the hand-held recognition mode is pressed. vessel. 5. The automatic recognition mode is determined when the state of the door detected by the door opening/closing detection unit is determined to be closed, and the key for the automatic recognition mode is pressed. heating cooker. When the hand-held recognition mode is determined, the body control unit controls the heating of the object to be heated read when the door is opened when the state of the door detected by the door open/close detection unit is closed. The heating cooker according to any one of claims 1 to 5, wherein the heating of the object to be heated is started based on the information. When the automatic recognition mode is determined, the body control unit controls the heating of the object to be heated read after the door is closed when the state of the door detected by the door open/close detection unit is closed. The heating cooker according to any one of claims 1 to 4 , wherein the heating of the object to be heated is started based on the information. In the automatic recognition mode and the handheld recognition mode,
a setting changing unit for changing settings of at least one of the imaging unit and the recognition processing unit;
3. The heating cooker according to claim 2 , wherein the object to be heated is heated based on the heating control information read by the recognition processing unit according to the setting change state of the setting change unit. 9. The heating cooker according to claim 8, wherein the setting changing unit changes the exposure time when the image is taken by the photographing unit between the automatic recognition mode and the hand-held recognition mode. 10. The heating cooker according to claim 8 or 9, wherein the setting change section causes the image extraction processing when photographing in the recognition processing section to differ between an automatic recognition mode and a hand-held recognition mode. 11. The body control unit prompts guidance to the handheld recognition mode when the recognition processing unit makes a recognition error in the automatic recognition mode. The heating cooker described in . 12. The recognition processing unit repeats the recognition processing until the recognition processing succeeds until a predetermined time elapses or within a predetermined number of times in the hand-held recognition mode. The heating cooker according to item 1.

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