JP6088328B2 - Cooker - Google Patents

Description

  Embodiments according to the present invention relate to a cooking device.

  2. Description of the Related Art Today, a cooking device such as a microwave oven includes a plurality of cooking devices such as a microwave cooking device using a microwave irradiated from a magnetron, an oven cooking device using heat radiated from a heater, and a steam cooking device using steam.

  There is also known a cooking device that incorporates an automatic cooking menu corresponding to the object to be heated and performs suitable heating by selecting the type of object to be heated (for example, rice, milk, liquor). According to this cooking device, the user can select heating conditions suitable for the object to be heated with a small number of operations. Note that the automatic cooking menu is a set of heating conditions (heating profiles consisting of heating output up and down and heating time) that are adjusted in advance for each type of object to be heated.

  And the cooking device which analyzes the shape and magnitude | size of a to-be-heated object from the image image | photographed with the camera, specifies what the to-be-heated object is, and performs heating control is known.

JP-A-6-257756

  Objects to be heated, specifically foods, have various shapes, have different amounts, and are sometimes served in dishes such as bowls and cups. For this reason, in the conventional heating cooker, the to-be-heated object was not necessarily able to be specified correctly.

  In addition, since the conventional cooking device shoots the heating chamber with one camera, a blind spot occurs in any part of the heating chamber, and the object to be heated protrudes outside the image, or is not reflected at all. In some cases, the object to be heated could not be specified. In order to avoid this, it has been necessary to limit the places where the object to be heated is arranged in the heating chamber.

  By the way, in order to narrow down the target area for image recognition and reduce the burden of image recognition processing, the image in the empty heating chamber is compared with the image in the heating chamber in which the object to be heated is placed. A possible method is to extract the portion. However, in this comparison method, the background portion that should be common to both images is affected by environmental conditions, particularly the lighting conditions and the degree of dirt in the heating chamber, and the portion where the object to be heated is placed is extracted appropriately. It may not be possible.

  Thus, the present invention solves one or more of these problems.

  Specifically, the present invention provides a heating cooker in which heating conditions can be set flexibly even if the object to be heated is not accurately identified by image recognition.

  In addition, the present invention provides a cooking device that can reduce the blind spot of an image used for image recognition and can arrange an object to be heated more flexibly.

  Further, the present invention is a cooking method that can more reliably extract a portion where an object to be heated is placed on an image used for image recognition, thereby reducing the burden of image recognition and improving the accuracy of identifying the object to be heated. Provide a bowl.

In order to solve the above-described problems, a cooking device according to an embodiment of the present invention includes a cooking chamber that partitions a heating chamber in which an object to be heated can be taken in and out, and heats the object to be heated by irradiating the heating chamber with high-frequency radio waves A high-frequency heating device that performs imaging, a photographing unit that captures an image in the heating chamber, an image recognition unit that performs image analysis on the image and adjusts the candidate for the object to be heated, and extracts options from the candidate for the object to be heated An option extraction unit; a display unit that displays the option; and a selection input unit that selectively accepts one candidate input from the options , the display unit serving as a candidate for the object to be heated. the choice certainty order of recognition of that to display.

A cooking device according to an embodiment of the present invention includes a cooking chamber that partitions a heating chamber in which an object to be heated can be taken in and out, a high-frequency heating device that irradiates the heating chamber with a high-frequency radio wave and heats the object to be heated. A plurality of imaging units that capture images of the heating chamber from a plurality of different locations, an image recognition unit that analyzes the image to identify the object to be heated, and a temperature of the object to be heated in the heating chamber. A temperature measuring device for measuring, and a control unit for controlling the high-frequency heating device under a cooking condition set in advance for an object to be heated specified by the image recognition unit, and at least two of the photographing units Are respectively disposed on mutually opposing wall surfaces in the heating chamber, and the control unit estimates the size of the object to be heated from the plurality of images captured by the plurality of imaging units, and determines the size of the object to be heated. From the estimation result Expected the heating time of the object to be heated, and to avoid overheating of said heating was discontinued if abnormality Shojire the measured temperature of the temperature measuring device the object to be heated.

The front view which shows the heating cooker which concerns on 1st Embodiment of this invention. The perspective view which shows the heating cooker which concerns on 1st Embodiment of this invention from the front side. The longitudinal cross-sectional view which shows the heating cooker which concerns on 1st Embodiment of this invention. The cross-sectional view which shows the heating cooker which concerns on 1st Embodiment of this invention. The functional block diagram which shows the heating cooker which concerns on 1st Embodiment of this invention. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 1st Embodiment of this invention image | photographs. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 1st Embodiment of this invention image | photographs. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 1st Embodiment of this invention image | photographs. The figure which shows an example of the display in a display part when the cooking-by-heating machine which concerns on 1st Embodiment of this invention performs image recognition. The figure which shows an example of the display in a display part when the cooking-by-heating machine which concerns on 1st Embodiment of this invention performs image recognition. The figure which shows an example of the display in a display part when the cooking-by-heating machine which concerns on 1st Embodiment of this invention performs image recognition. The figure which shows an example of the display in a display part when the cooking-by-heating machine which concerns on 1st Embodiment of this invention performs image recognition. The cross-sectional view which shows the heating cooker which concerns on 2nd Embodiment of this invention. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 2nd Embodiment of this invention image | photographs. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 2nd Embodiment of this invention image | photographs. The cross-sectional view which shows the heating cooker which concerns on 2nd Embodiment of this invention. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 2nd Embodiment of this invention image | photographs. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 2nd Embodiment of this invention image | photographs. The cross-sectional view which shows the heating cooker which concerns on 2nd Embodiment of this invention. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 2nd Embodiment of this invention image | photographs. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 2nd Embodiment of this invention image | photographs. The functional block diagram which shows the heating cooker which concerns on 2nd Embodiment of this invention. The figure which shows the relationship between the visual field of the imaging | photography part in the heating cooker which concerns on 2nd Embodiment of this invention, and the visual field of a temperature measurement apparatus. The figure which shows an example of the eyes | visual_axis of the imaging | photography part and the temperature measuring apparatus in the heating cooker which concerns on 2nd Embodiment of this invention. The figure which shows an example of the visual field of the imaging | photography part in the heating cooker which concerns on 2nd Embodiment of this invention, and the visual field of a temperature measurement apparatus. The figure which shows an example of the eyes | visual_axis of the imaging | photography part and the temperature measuring apparatus in the heating cooker which concerns on 2nd Embodiment of this invention. The figure which shows an example of the visual field of the imaging | photography part in the heating cooker which concerns on 2nd Embodiment of this invention, and the visual field of a temperature measurement apparatus. The functional block diagram which shows the heating cooker which concerns on 2nd Embodiment of this invention. The figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 3rd Embodiment of this invention image | photographs. The figure which shows an example of the motion analysis of the heating cooker which concerns on 3rd Embodiment of this invention. The figure which shows an example of the motion analysis of the heating cooker which concerns on 3rd Embodiment of this invention. The figure which shows an example of the motion analysis of the heating cooker which concerns on 3rd Embodiment of this invention.

  An embodiment of a heating cooker according to the present invention will be described with reference to the drawings.

[First Embodiment]
Hereinafter, 1st Embodiment of the heating cooker which concerns on this invention is described with reference to FIGS.

  FIG. 1 is a front view showing a heating cooker according to the first embodiment of the present invention.

  FIG. 2 is a perspective view showing the heating cooker according to the first embodiment of the present invention from the front side.

  1 shows the cooking device 1 with the door 3 closed, and FIG. 2 shows the cooking device 1 with the door 3 open.

  The heating cooker 1 according to the present embodiment is a so-called superheated steam microwave oven, and has functions of a microwave oven, an oven, and a steam range. As shown in FIG. 1 and FIG. 2, the heating cooker 1 opens and closes a box-shaped cooking chamber 2 that partitions a heating chamber 2 b through which an object to be heated O can be taken in and out through an opening 2 a on the front surface, and an opening 2 a of the cooking chamber 2. And a door 3 to be provided.

  The cooking chamber 2 includes a box-shaped inner box 5 that partitions the heating chamber 2 b, a box-shaped outer box 6 that surrounds the inner box 5, and a tray 7 that supports the inner box 5 and the outer box 6. Is provided.

  The inner box 5 includes a back wall 5a that partitions the heating chamber 2b, a right side wall 5b, a left side wall 5c, a bottom wall 5d, and a top wall 5e. The back wall 5a, the right side wall 5b, the left side wall 5c, the bottom wall 5d and the top wall 5e are metal plate materials, for example, steel plates, which reflect microwaves and confine them in the heating chamber 2b. Adjacent walls are joined by a joining method such as caulking or welding.

  The back wall 5a is sandwiched between an upper hot air outlet 8 and a lower hot air outlet 9, and a central portion of the upper hot air outlet 8 and the lower hot air outlet 9 in which a plurality of small openings are divided into two upper and lower lines and arranged in the width direction. And a plurality of small openings arranged in a circle. The suction port 11 is disposed substantially at the center of the back wall 5a.

  The left side wall 5c includes a steam outlet 13 having a plurality of small openings arranged horizontally.

  The door 3 swings around a swing center line that is disposed at the lower end of the front surface of the cooking chamber 2 and extends left and right. The door 3 closes the heating chamber 2b when it swings around the swing center line and comes into contact with the front surface 2c of the cooking cabinet 2. On the other hand, when the door 3 is separated from the front surface 2c of the cooking chamber 2 and swings around the rotation center line and falls substantially horizontally, the opening 2a is fully opened.

  Moreover, the door 3 is provided with the operation part 15 which can set a heating condition. The operation unit 15 includes an input unit 16 and a display unit 17.

  The input unit 16 includes a heating condition setting dial 18, a heating start instruction switch 19, a release instruction switch 21, a drink key 22a, a food key 22b, a microwave oven key 22c, an oven key 22d, and a steam key 22e. And comprising.

  The heating condition setting dial 18 sequentially switches various selection items such as selection of an operation mode such as manual operation or automatic operation, selection of a heating condition (heating time or heating temperature), selection of an automatic cooking menu based on the rotation operation. . Further, the heating condition setting dial 18 accepts the determination of an item selected alternatively based on the pressing operation.

  The heating start instruction switch 19 receives an operation start instruction for the determined operation mode, heating conditions, and automatic cooking menu. The heating start instruction switch 19 also serves as a “warm” menu selection in the automatic cooking menu that should be selected by operating the heating condition setting dial 18. When the heating start instruction switch 19 is operated without selecting any menu, the heating cooker 1 starts operation with the “warm” menu.

  The release instruction switch 21 receives an instruction for resetting the operation content received by the heating condition setting dial 18 or the heating start instruction switch 19. That is, the release instruction switch 21 receives an instruction for canceling the selection or determination received by the heating condition setting dial 18 or stopping the started operation.

  The drink key 22 a, the food key 22 b, the microwave oven key 22 c, the oven key 22 d, and the steam key 22 e are menu keys 22 that accept an operation for switching the operation mode of the cooking device 1. The menu key 22 is a capacitance type touch sensor, and a known detection method such as a series capacitance / partial pressure comparison method can be adopted.

  Drink key 22a accepts an instruction for forcibly setting the operation mode of heating cooker 1 to a control mode suitable for heating beverages such as water, milk, and sake.

  The bowl key 22b receives an instruction for forcibly setting the operation mode of the heating cooker 1 to a control mode suitable for heating bowls such as vegetables.

  The microwave oven key 22c receives an instruction for forcibly setting the operation mode of the heating cooker 1 to the microwave oven mode.

  The oven key 22d accepts an instruction for forcibly setting the operation mode of the heating cooker 1 to the oven mode.

  The steam key 22e receives an instruction for forcibly setting the operation mode of the heating cooker 1 to the steam mode.

  The display unit 17 displays selection items and determination items based on the operation of the heating condition setting dial 18, operating states of the heating cooker 1 based on the operations of the heating start instruction switch 19 and the release instruction switch 21, and the like.

  Moreover, the heating cooker 1 according to the present embodiment includes a detachable storage tank 23 that stores water that becomes steam for cooking in the steam range, and a detachable tray 24 that stores drainage discharged from the cooking chamber 2. .

  The storage tank 23 is disposed on the left front bottom of the heating cooker 1. The saucer 24 is disposed on the right front bottom of the heating cooker 1.

  The storage tank 23 and the tray 24 are detachable in a drawer shape toward the front of the heating cooker 1 and have a handle on the front surface.

  Furthermore, the heating cooker 1 according to the present embodiment includes a cover member 25 disposed on the front surface of the tray 7. The cover member 25 is disposed below the door 3 and extends over the entire width of the heating cooker 1 or the cooking chamber 2. The cover member 25 holds the storage tank 23 and the tray 24 in a detachable manner.

  FIG. 3 is a longitudinal sectional view showing the heating cooker according to the first embodiment of the present invention.

  As shown in FIG. 3, the tray 7 and the outer box 6 of the heating cooker 1 according to the present embodiment cooperate to surround the inner box 5 and support the heating chamber 2 b with a gap 26 therebetween.

  The heating cooker 1 includes an oven cooking mechanism 29 disposed in a gap 26 a that separates the back wall 5 a of the inner box 5 and the back wall 6 a of the outer box 6. The oven cooking mechanism 29 supplies hot air into the heating chamber 2b to heat the article to be heated O. The oven cooking mechanism 29 is one of heating devices that heat the object to be heated O in the heating chamber 2b.

  The oven cooking mechanism 29 is one of heating units that cook the object to be heated O by heating the inside of the heating chamber 2b. The oven cooking mechanism 29 includes a fan device 31 disposed behind the suction port 11, a plurality of heaters 32 facing the upper hot air discharge port 8 and the lower hot air discharge port 9, and a casing 33. The oven cooking mechanism 29 also serves as a grill cooking mechanism.

  The fan device 31 includes a fan motor 35 that is fixed to the back surface of the casing 33, and a centrifugal fan 36 that is accommodated in the casing 33 and faces the suction port 11 and is fixed to the rotation shaft of the fan motor 35.

  The heater 32 surrounds the fan device 31 in an annular shape, and includes an upper side portion 32 a disposed behind the upper hot air discharge port 8 and a lower side portion 32 b disposed behind the lower hot air discharge port 9.

  The casing 33 is a processed sheet metal product and houses the centrifugal fan 36 and the heater 32 of the fan device 31, and the hot air is heated behind the upper hot air outlet 8, the lower hot air outlet 9, and the inlet 11 of the back wall 5 a. Divide the road.

  The oven cooking mechanism 29 drives the fan device 31 to suck the air in the heating chamber 2 b into the casing 33 from the suction port 11 and heats the air discharged around the centrifugal fan 36 by the heater 32 to be heated. The heated air is discharged from the upper hot air outlet 8 and the lower hot air outlet 9 into the heating chamber 2b to heat the object to be heated O in the heating chamber 2b.

  The heating cooker 1 includes a microwave cooking mechanism 37 that heats the object to be heated O by irradiating microwaves as high-frequency radio waves into the heating chamber 2b. The microwave cooking mechanism 37 is also one of heating units that cook the object to be heated O by heating the inside of the heating chamber 2b. The microwave oven cooking mechanism 37 is a high-frequency heating device that heats the object to be heated O by irradiating it with microwaves. The microwave cooking mechanism 37 is one of the heating devices that heat the object to be heated O in the heating chamber 2b.

  The microwave oven cooking mechanism 37 includes a magnetron 38 capable of generating microwaves located in the lower half of the gap 26 a and a microwave generated by the magnetron 38 located in the gap 26 b separating the inner box 5 and the tray 7. A waveguide 39 that leads to the lower side of the box 5, an antenna 41 that diffuses microwaves into the inner box 5, and an antenna drive unit 42 that rotationally drives the antenna 41 are provided.

  The antenna 41 is accommodated in a recess 43 that is disposed on the bottom wall 5d of the inner box 5 and is recessed downward. The antenna 41 may have a plate shape and may have directivity in microwave diffusion or may be non-directional. The antenna driving unit 42 is a motor.

  The radio wave transmitting plate 45 is a plate made of ceramic or the like that transmits microwaves, and closes the concave portion 43 of the inner box 5 so as to cover the antenna 41 to form a flat bottom surface in the heating chamber 2b.

  The microwave cooking mechanism 37 generates a microwave in the magnetron 38, guides the microwave to the lower side of the inner box 5 with the waveguide 39, diffuses it with the antenna 41, and irradiates it into the heating chamber 2b. The object to be heated O is heated.

  On the other hand, the outer box 6 includes a heat insulating material 46 spreading on the inner surface. The heat insulating material 46 is directly applied to the outer surface of the cooking chamber 2 by the heat radiated from the inner box 5 or the heat transmitted from the gas (hot air or water vapor) convection through the gap 26 separating the inner box 5 and the outer box 6. Suppresses transmission.

  The tray 7 includes columnar legs 47 that are provided at the four corners of the bottom surface of the heating cooker 1 and support the weight of the entire heating cooker 1.

  Furthermore, the heating cooker 1 includes a temperature measuring device 51 that measures the temperature of the object to be heated O in the heating chamber 2b. The temperature measuring device 51 measures the inside of the heating chamber 2 b through a temperature measuring window 52 opened at the top of the inner box 5.

  The temperature measuring device 51 measures the temperature of the object to be heated O by dividing the inside of the heating chamber 2b into a plurality of locations. Specifically, the temperature measuring device 51 includes an infrared sensor 53 that is provided in the upper part of the heating chamber 2b and detects infrared rays in the heating chamber 2b, and an infrared sensor driving device 55 that swings the infrared sensor 53. .

  The infrared sensor 53 includes a plurality of temperature detection elements 56 arranged in a straight line, for example, eight infrared detection elements.

  The infrared sensor driving device 55 swings the plurality of temperature detection elements 56 in a direction crossing the array. An output shaft 57 connected to the infrared sensor 53 is provided. The output shaft 57 is the swing center of the infrared sensor 53. The infrared sensor driving device 55 repeats normal rotation and reverse rotation of the output shaft 57 to swing the infrared sensor 53, and expands the visual field of the infrared sensor 53 over almost the entire bottom surface in the heating chamber 2b.

  For example, the temperature measuring device 51 swings the infrared sensor 53 with one cycle of 5 seconds, and measures, for example, 16 temperatures per infrared detection element. That is, the temperature measuring device 51 measures 128 temperatures per cycle. The specific configuration of the temperature measuring device 51 can employ the configuration described in Japanese Patent Laid-Open No. 2005-351666.

  Furthermore, the cooking device 1 includes a control board (not shown) for adjusting the operation of the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59 (described later in FIG. 4) in the gap 26b.

  FIG. 4 is a cross-sectional view showing the heating cooker according to the first embodiment of the present invention.

  As shown in FIG. 4, the heating cooker 1 according to this embodiment includes a steam cooking mechanism 59 that can heat an object to be heated O in a heating chamber 2 b with cooking steam. The steam cooking mechanism 59 is one of heating devices that heat the object to be heated O in the heating chamber 2b.

  The steam cooking mechanism 59 includes a storage tank 23, a steam generator 61 that can supply cooking steam into the heating chamber 2 b to heat the article to be heated O, and an electric pump 62 that pumps water from the storage tank 23 to the steam generator 61. And a hose 63 that fluidly connects the electric pump 62 and the steam generator 61.

  In addition, the steam which the steam cooking mechanism 59 pumps water from the storage tank 23 and emits for cooking is called “cooking steam”. Further, when simply referred to as “steam”, both steam generated from an object to be heated and cooking steam by heating of the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59 are included.

  The steam generator 61 is disposed in a gap 26 c that separates the left side wall 5 c of the inner box 5 and the left side wall 6 c of the outer box 6. The steam generator 61 heats the article to be heated O by supplying cooking steam from the steam outlet 13 into the heating chamber 2b. The steam generator 61 includes an evaporation heater 65 that heats water and generates cooking steam.

  Moreover, the heating cooker 1 is provided with the imaging | photography part 67 which image | photographs the image in the heating chamber 2b. The photographing unit 67 photographs the inside of the heating chamber 2 b through the photographing window 68 opened at the top of the inner box 5.

  The photographing unit 67 is provided on the upper part of the right side wall 5 b of the inner box 5. That is, the imaging unit 67 is disposed on the wall surface adjacent to the door 3. The imaging unit 67 captures an image of the object to be heated O in the heating chamber 2b. The photographing unit 67 is a camera including an image sensor such as a CCD image sensor (Charge Coupled Device image sensor) or a CMOS image sensor (Complementary Metal-Oxide Semiconductor image sensor). Note that the photographing unit 67 may acquire the shape data of the object to be heated O using an ultrasonic vibrator or a shape sensor using infrared rays together with or in place of the camera.

  In addition to the imaging unit 67a indicated by the solid line in FIG. 4, there may be a plurality of imaging units 67 such as an imaging unit 67b and an imaging unit 67c indicated by the two-dot chain line. The photographing unit 67 b is provided on the upper part of the left side wall 5 c of the inner box 5. The photographing unit 67 c is provided on the upper part of the back wall 5 a of the inner box 5. The plurality of imaging units 67a, 67b, and 67c image the inside of the heating chamber 2b from a plurality of different locations. And like the imaging | photography parts 67a and 67b, at least 2 of the imaging | photography parts 67 is each arrange | positioned on the different wall surface in the heating chamber 2b, ie, the right side wall 5b or the left side wall 5c.

  In addition, like the photographing units 67a and 67b, at least two of the photographing units 67 are arranged on opposite wall surfaces in the heating chamber 2b, that is, the right side wall 5b or the left side wall 5c.

  Furthermore, as indicated by a two-dot chain line in FIG. 4, the temperature measuring device 51 may be disposed in the vicinity of the photographing unit 67.

  FIG. 5 is a functional block diagram showing the cooking device according to the first embodiment of the present invention.

  As shown in FIG. 5, the heating cooker 1 according to this embodiment includes a display unit 17, a heating condition setting dial 18, a heating start instruction switch 19, a release instruction switch 21, a drink key 22 a, a food key 22 b, and a microwave oven. In addition to the key 22c, the oven key 22d, the steam key 22e, the oven cooking mechanism 29, the microwave cooking mechanism 37, the steam cooking mechanism 59, the temperature measuring device 51, the photographing unit 67, the control device 71, a door opening / closing sensor 72, and a notification Unit 73, cooking condition storage unit 74, image recognition unit 75, and option extraction unit 76.

  The door opening / closing sensor 72 is a so-called micro switch, and reliably detects whether the door 3 is closed by combining a plurality of micro switches.

  The notification unit 73 sounds a buzzer sound for notifying the user of the end of the operation of the oven cooking mechanism 29 or the microwave cooking mechanism 37.

  The microwave oven cooking mechanism 37 includes an anode current detection circuit 77 serving as a detection unit that detects a physical quantity (anode current of the magnetron 38) that changes with a change in input voltage and outputs an analog electric signal.

  The control device 71 includes a microcomputer, and includes a central processing unit (not shown), a memory (not shown), an I / O unit (not shown), and a timer (not shown). The control device 71 is based on operations accepted by the heating condition setting dial 18, the heating start instruction switch 19, the release instruction switch 21, the drink key 22a, the drink key 22b, the microwave key 22c, the oven key 22d, and the steam key 22e. The operation of the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59 is controlled. The control device 71 permits the operation of the oven cooking mechanism 29 and permits the operation of the microwave cooking mechanism 37 when the door 3 is closed by the door opening / closing sensor 72.

  Moreover, the control apparatus 71 operates the alerting | reporting part 73, sounds a buzzer, and alert | reports a user about the completion | finish of operation | movement of the oven cooking mechanism 29, the operation | movement completion | finish of the microwave cooking mechanism 37, and the operation | movement completion | finish of the steam cooking mechanism 59. .

  Furthermore, the control device 71 selects and determines items based on the operations received by the heating condition setting dial 18, drink key 22a, bowl key 22b, microwave oven key 22c, oven key 22d, and steam key 22e, and starts heating. The operating state of the heating cooker 1 based on the operation received by the instruction switch 19 or the release instruction switch 21 is displayed on the display unit 17.

  The cooking condition storage unit 74 stores a database that stores a plurality of image data used by the image recognition unit 75 to perform image recognition. Each image data is associated with any one automatic cooking menu. In addition, each image data is obtained by adjusting an image obtained by photographing a sample of the object to be heated O to be cooked using the automatic cooking menu into electronic data.

  The automatic cooking menu controls the heating unit (the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59) under preset heating conditions (heating profile consisting of heating output up and down and heating time). This is a sequential cooking menu for heating and cooking the object to be heated O.

  The image recognition unit 75 and the option extraction unit 76 are processed and executed by the control device 71.

  The image recognition unit 75 adjusts the candidate for the object to be heated O in the heating chamber 2 b from the image received from the imaging unit 67. Specifically, the image recognition unit 75 recognizes the shape, color tone, color, and the like of the heated object O from the image of the photographing unit 67, compares the image recognition result with the database of the cooking condition storage unit 74, and A ranking is given from image data having a strong correlation, that is, a ranking is given from a candidate of an automatic cooking menu that is surely recognized. The candidates for the automatic cooking menu naturally represent candidates for the object to be heated O in the heating chamber 2b. Image data with higher rank is more likely to match the object to be heated O. In other words, a candidate for an automatic cooking menu with higher rank is more likely to provide an appropriate heating condition for the object to be heated O. Various known techniques can be applied to the image recognition technique for ranking the objects to be heated O.

  The option extraction unit 76 extracts options from the candidates for the object to be heated O. Specifically, the option extraction unit 76 extracts, for example, the top three automatic cooking menus as options according to the ranking of the image recognition unit 75, that is, the ranking of the automatic cooking menu.

  The display unit 17 displays the options extracted by the option extraction unit 76.

  The heating condition setting dial 18 functions as a selection input unit that selectively receives one candidate input from the options displayed on the display unit 17. The heating condition setting dial 18 sets the candidate with the highest rank as an initial value. When the heating start instruction switch 19 is operated without receiving any operation, the control device 71 starts the operation of the heating device on the assumption that the candidate with the highest rank has been selected.

  Next, the cooking condition determination process of the heating cooker 1 in the present embodiment will be described. In the cooking condition determination process, the photographing unit 67 images the object to be heated O, the image recognition unit 75 recognizes the image of the object to be heated O, the option extraction unit 76 extracts options from the image recognition result, and the display unit Reference numeral 17 denotes a series of processes for displaying the options and operating the heating device according to the candidates selected from the options based on the operation of the heating condition setting dial 18.

  6-8 is a figure which shows an example of the image which the imaging | photography part of the heating cooker which concerns on 1st Embodiment of this invention image | photographs.

  FIG. 6 is an image when the photographing unit 67 photographs a cup in which milk is poured as the object to be heated O (hereinafter simply referred to as “milk”). FIG. 7 shows an image when the photographing unit 67 photographs a tea bowl (hereinafter simply referred to as “rice”) in which rice is turned away as the object to be heated O. FIG. 8 is an image in a case where the photographing unit 67 photographs a bottle of liquor (hereinafter simply referred to as “alcohol”) in which alcohol is poured as the object to be heated O.

  FIG. 9 is a diagram illustrating an example of display on the display unit when the cooking device according to the first embodiment of the present invention performs image recognition.

  The heating cooker 1 according to the present embodiment displays only “0” on the display unit 17 as shown in FIG. 9A during standby in which no operation is accepted.

  Then, when the object to be heated O, for example, “milk” is arranged in the heating chamber 2b and the door 3 is closed, the heating cooker 1 starts imaging in the heating chamber 2b by the imaging unit 67, and the process shown in FIG. An image as shown is obtained. The image photographed by the photographing unit 67 is sent to the image recognition unit 75. The image recognition unit 75 recognizes the image and adjusts the candidate for the object to be heated O. In other words, the image recognition unit 75 ranks the candidates for the automatic cooking menu as candidates for the object to be heated O. It is assumed that the automatic cooking menu is ranked as “milk” in the first place, “rice” in the second place, and “sake” in the third place. The option extraction unit 76 extracts the top three automatic cooking menus as options according to the ranking of the automatic cooking menus. Through these processes, the heating cooker 1 displays the automatic cooking menu from the “range” and “warm” menus indicating that the microwave oven mode is selected on the display unit 17 as shown in FIG. 9B. “Warm” indicating that the candidate is selected, “1 Milk”, “2 Rice”, and “3 Liquor” indicating the ranking of the automatic cooking menu are displayed. The highest ranking “1 milk” is surrounded by a “frame” and displayed for easy identification. This “frame” also serves as an indicator for selecting an automatic cooking menu candidate. That is, the heating condition setting dial 18 uses the candidate with the highest rank as the initial value.

  Thus, the display unit 17 displays the options in the order of the probability of recognition related to the candidate for the object to be heated O. In addition, the display unit 17 displays the candidate with the highest ranking with higher visibility than other candidates.

  When the heating start instruction switch 19 is operated, the heating cooker 1 displays “milk” as the selected automatic cooking menu on the display unit 17 as shown in FIG. While the “range” is blinking, the microwave cooking mechanism 37 is operated according to the setting being displayed. The control device 71 calculates the remaining time until reaching the target temperature set in the automatic cooking menu from the measurement result of the temperature measuring device 51. When the cooking device 1 determines the remaining time, as shown in FIG. 9D, the display unit 17 displays “XX seconds (for example, 15 seconds)” indicating the remaining time until the heating is completed. The microwave oven cooking mechanism 37 is operated according to the setting being displayed.

  FIG. 10 is a diagram illustrating an example of display on the display unit when the cooking device according to the first embodiment of the present invention performs image recognition.

  As illustrated in FIG. 10, the display unit 17 may display the candidate with the highest ranking with higher visibility than the other candidates by displaying the candidate with the highest ranking higher than the other candidates.

  By the way, the candidate of the automatic cooking menu which the image recognition part 75 adjusts does not necessarily correspond with the to-be-heated object O in the heating chamber 2b. For example, although the object to be heated O in the heating chamber 2b is actually “rice”, as shown in FIG. 9B, the automatic cooking menu is ranked “1 milk”, “2 rice”. May be misunderstood. In such a case, another candidate is selected by operating the heating condition setting dial 18.

  FIG. 11 is a diagram illustrating an example of display on the display unit when the cooking device according to the first embodiment of the present invention performs image recognition.

  Depending on the operation amount of the heating condition setting dial 18, the cooking device 1 moves the “frame” of the display unit 17 to enclose “2 rice”, for example, as shown in FIG. Change the menu candidate to “rice”. Then, when the heating start instruction switch 19 is operated, the heating cooker 1 causes the display unit 17 to display “rice”, which is the selected automatic cooking menu, as shown in FIG. ”Is blinking, and the microwave oven cooking mechanism 37 is operated according to the setting being displayed. The control device 71 calculates the remaining time until reaching the target temperature set in the automatic cooking menu from the measurement result of the temperature measuring device 51. When the cooking device 1 determines the remaining time, as shown in FIG. 11 (c), the display unit 17 displays “XX seconds (for example, 10 seconds)” indicating the remaining time until the heating is completed. The microwave oven cooking mechanism 37 is operated according to the setting being displayed.

  Furthermore, for example, although the object to be heated O in the heating chamber 2b is actually “rice”, there are misconceptions such as “1 milk” and “2 rice” in the ranking of the automatic cooking menu. However, the user may inadvertently operate the heating start instruction switch 19 while the initial value “1 milk” is selected.

  Therefore, even after the heating cooker 1 once starts the operation of the heating device according to the automatic cooking menu, it accepts another candidate re-input for a predetermined time and corrects the automatic cooking menu. Accept.

  FIG. 12 is a diagram illustrating an example of display on the display unit when the cooking device according to the first embodiment of the present invention performs image recognition.

  The heating cooker 1 according to the present embodiment displays only “0” on the display unit 17 as shown in FIG. 12A during standby in which no operation is accepted.

  Then, when the object to be heated O, for example, “rice” is placed in the heating chamber 2b and the door 3 is closed, the heating cooker 1 starts photographing in the heating chamber 2b by the photographing unit 67, and the process shown in FIG. An image as shown is obtained. The image photographed by the photographing unit 67 is sent to the image recognition unit 75. The image recognition unit 75 recognizes the image and adjusts the candidate for the object to be heated O. In other words, the image recognition unit 75 ranks candidates for the automatic cooking menu that are likely to be candidates for the object to be heated O. However, the candidate for the automatic cooking menu adjusted by the image recognition unit 75 does not necessarily match the object to be heated O in the heating chamber 2b. For example, despite the fact that the object to be heated O in the heating chamber 2b is actually “rice”, the automatic cooking menu of “milk” in the first place, “rice” in the second place, “sake” in the third place May be ranked. The option extraction unit 76 extracts the top three automatic cooking menus as options according to the ranking of the automatic cooking menus. Through these processes, the heating cooker 1 can change the automatic cooking menu from the “range” and “warm” menus indicating that the microwave oven mode is selected on the display unit 17 as shown in FIG. “Warm” indicating that the candidate is selected, “1 Milk”, “2 Rice”, and “3 Liquor” indicating the ranking of the automatic cooking menu are displayed. The highest ranking “1 milk” is surrounded by a “frame” and displayed for easy identification.

  Even if there is such a misconception, the user may inadvertently operate the heating start instruction switch 19 while the initial value “1 milk” is selected. When the heating start instruction switch 19 is operated, the heating cooker 1 operates the microwave cooking mechanism 37 according to the setting being displayed while blinking the “range” as shown in FIG. . At this time, the display unit 17 continuously displays all options within a predetermined time (for example, 10 seconds) even after the heating start instruction switch 19 is operated and the heating apparatus starts operation.

  The heating condition setting dial 18 selectively accepts another candidate re-input within a predetermined time even after the heating start instruction switch 19 is operated and the heating apparatus starts operation, and switches the automatic cooking menu. Specifically, as shown in FIG. 12D, the “frame” of the display unit 17 moves to enclose “2 rice” in accordance with the operation amount of the heating condition setting dial 18, and a candidate for the automatic cooking menu. Is changed to “rice”. When the predetermined time has elapsed, the automatic cooking menu is confirmed. As shown in FIG. 12 (e), the heating cooker 1 displays “rice”, which is the selected automatic cooking menu, on the display unit 17, and blinks “range” according to the setting being displayed. The microwave cooking mechanism 37 is operated. The cooking device 1 uses the control device 71 to calculate the remaining time from the measurement result of the temperature measuring device 51 until it reaches the target temperature set in the automatic menu. When the cooking device 1 determines the remaining time, as shown in FIG. 12 (f), while displaying “XX seconds (for example, 10 seconds)” indicating the remaining time until the heating is completed on the display unit 17, The microwave oven cooking mechanism 37 is operated according to the setting being displayed.

  The heating cooker 1 according to the present embodiment recognizes an image of the object to be heated O by the image recognition unit 75 and associates the image recognition result with the automatic cooking menu without narrowing down to one automatic menu. By presenting the user with a plurality of candidates for the automatic cooking menu, the heating conditions suitable for the object to be heated O can be flexibly set even if the identification of the object to be heated O is an inaccurate result.

  Moreover, the heating cooker 1 which concerns on this embodiment makes easy the setting of the heating conditions suitable for the to-be-heated object O by showing a user the candidate of a some automatic cooking menu to the order with a certain recognition. .

  Furthermore, the heating cooker 1 according to the present embodiment makes it easy to set the heating conditions suitable for the object to be heated O by presenting the automatic cooking menu candidates that are surely recognized with high visibility.

  Furthermore, the heating cooker 1 according to the present embodiment facilitates setting of heating conditions suitable for the article to be heated O by presenting automatic cooking menu candidates that are surely recognized as initial values.

  Moreover, the heating cooker 1 which concerns on this embodiment enables suitable switching even if a user mistakes a candidate selection by enabling the candidate of an automatic cooking menu to switch even after a heating apparatus starts a driving | operation. Make changes to conditions easier.

  Therefore, according to the heating cooker 1 according to the present embodiment, the heating condition can be set flexibly even if the object to be heated O is not accurately identified by image recognition.

[Second Embodiment]
A second embodiment of the heating cooker according to the present invention will be described with reference to FIGS. 13 to 27.

  FIG. 13: is a cross-sectional view which shows the heating cooker which concerns on 2nd Embodiment of this invention.

  14 and 15 are diagrams illustrating examples of images captured by the imaging unit of the cooking device according to the second embodiment of the present invention.

  In 1 A of heating cookers which concern on this embodiment, the same code | symbol is attached | subjected to the same structure as the heating cooker of 1st Embodiment, and the overlapping description is abbreviate | omitted.

  As illustrated in FIG. 13, the heating cooker 1A according to the present embodiment includes a plurality of imaging units 67A that capture images in the heating chamber 2b from a plurality of different locations.

  There are at least two photographing units 67A. One photographing part 67 a is provided on the upper part of the right side wall 5 b of the inner box 5. The other photographing part 67 b is provided on the upper part of the left side wall 5 c of the inner box 5. That is, the imaging units 67a and 67b are respectively arranged on different wall surfaces in the heating chamber 2b. Further, the photographing units 67a and 67b are respectively arranged on the mutually opposing wall surfaces in the heating chamber 2b.

  The imaging unit 67A captures an image of the object to be heated O in the heating chamber 2b. The imaging unit 67A is a camera including an image sensor such as a CCD image sensor (Charge Coupled Device image sensor) or a CMOS image sensor (Complementary Metal-Oxide Semiconductor image sensor). Note that the imaging unit 67A may acquire the shape data of the object to be heated O using an ultrasonic vibrator or a shape sensor using infrared rays together with or in place of the camera.

  The temperature measuring device 51A is disposed in the vicinity of the photographing unit 67A.

  The fields of view of the imaging unit 67A and the temperature measuring device 51A are shown by broken lines in FIG.

  Now, when “rice” is placed as the object to be heated O in the center of the bottom surface of the heating chamber 2b, the photographing unit 67a of the right side wall 5b places “rice” in the center of the image as shown in FIG. capture. The photographing unit 67b on the left side wall 5c also captures “rice” in the center of the image as shown in FIG.

  FIG. 16: is a cross-sectional view which shows the heating cooker which concerns on 2nd Embodiment of this invention.

  17 and 18 are diagrams illustrating examples of images captured by the imaging unit of the cooking device according to the second embodiment of the present invention.

  Next, as shown in FIG. 16, “rice” as the object to be heated O is placed slightly to the right of the bottom surface of the heating chamber 2 b. In this case, the imaging unit 67a of the right side wall 5b captures “rice” largely on the near side of the image as shown in FIG. The photographing unit 67b on the left side wall 5c captures “rice” small on the back side of the image as shown in FIG.

  FIG. 19 is a cross-sectional view showing a cooking device according to the second embodiment of the present invention.

  20 and 21 are diagrams illustrating examples of images captured by the imaging unit of the cooking device according to the second embodiment of the present invention.

  Next, as shown in FIG. 19, “rice” is placed as an object to be heated O on the right side wall of the bottom surface of the heating chamber 2 b. In this case, as shown in FIG. 17, the imaging unit 67a on the right side wall 5b has the “rice” out of the field of view, in other words, the object to be heated O is arranged in the blind spot, and only a part of the image is on the front side of the image. To catch. As shown in FIG. 18, the photographing unit 67b on the left side wall 5c catches “rice” considerably small on the back side of the image.

  That is, the imaging unit 67A captures images in the heating chamber 2b from a plurality of different locations, so that the object to be heated O is in the blind spot of any image (for example, the image of the imaging unit 67a). The whole object to be heated O can be captured by another image (for example, an image of the photographing unit 67b).

  The field of view of each of the imaging units 67a and 67b overlaps at the center of the bottom surface of the heating chamber 2b, and the wall surface on which the other imaging unit 67b (imaging unit 67a) is provided when viewed from one imaging unit 67a (imaging unit 67b). To catch. The lower part of the right side wall 5b for the photographing part 67a and the lower part of the left side wall 5c for the photographing part 67b are blind spots, but the fields of view of the photographing parts 67a and 67b compensate for each other's blind spot. Yes. The plurality of imaging units 67A are arranged on different wall surfaces, thereby reducing the blind spots in the heating chamber 2b.

  The photographing unit 67a captures the lower part of the left side wall 5c at the center of the field of view, and the photographing unit 67b captures the lower part of the right side wall 5b at the center of the field of view. Thus, the field of view of each of the imaging units 67a and 67b can easily and mutually compensate for the blind spots by capturing one blind spot at the center of the other visual field.

  FIG. 22 is a functional block diagram showing a heating cooker according to the second embodiment of the present invention.

  As shown in FIG. 22, the cooking device 1A according to this embodiment includes a display unit 17, a heating condition setting dial 18, a heating start instruction switch 19, a release instruction switch 21, a drink key 22a, a food key 22b, and a microwave oven. Key 22c, oven key 22d, steam key 22e, oven cooking mechanism 29, microwave cooking mechanism 37, steam cooking mechanism 59, temperature measuring device 51A, door opening / closing sensor 72, notification unit 73, cooking condition storage unit 74, photographing unit 67A , A control device 71A, and an image recognition unit 75A.

  The control device 71A includes a microcomputer, and includes a central processing unit (not shown), a memory (not shown), an I / O unit (not shown), and a timer (not shown). The control device 71A is based on operations accepted by the heating condition setting dial 18, the heating start instruction switch 19, the release instruction switch 21, the drink key 22a, the food key 22b, the microwave key 22c, the oven key 22d, and the steam key 22e. The operation of the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59 is controlled. When the door 3 is closed by the door opening / closing sensor 72, the control device 71A permits the operation of the oven cooking mechanism 29 and permits the operation of the microwave cooking mechanism 37.

  Moreover, 71 A of control apparatuses operate the alerting | reporting part 73 and sound a buzzer, and alert | report a user the completion | finish of operation of the oven cooking mechanism 29, the completion | finish of operation of the microwave cooking mechanism 37, and the completion | finish of operation of the steam cooking mechanism 59. .

  Further, the control device 71A selects, determines, and starts heating based on operations received by the heating condition setting dial 18, drink key 22a, bowl key 22b, microwave oven key 22c, oven key 22d, and steam key 22e. The operation state of the heating cooker 1A based on the operation received by the instruction switch 19 or the release instruction switch 21 is displayed on the display unit 17.

  The control device 71A compares the plurality of images received from the photographing unit 67A, specifically, the photographing unit 67a and the photographing unit 67b with each other, and the object to be heated O is disposed at any location in the heating chamber 2b. Identify whether or not In addition, the control device 71A estimates the size of the object to be heated O by comparing a plurality of images received from the imaging unit 67A, specifically, the imaging unit 67a and the imaging unit 67b. By estimating the size of the object to be heated O, the control device 71A estimates the approximate maximum heating time required for heating the object to be heated O, and even if the estimated maximum heating time is reached, the control device 71A Heating is stopped for abnormalities such as measurement temperature not rising, and overheating of the object to be heated O is avoided.

  The image recognition unit 75A is processed and executed by the control device 71A.

  75 A of image recognition parts identify the to-be-heated object O in the heating chamber 2b from the some image | photographing part 67A, specifically, the imaging | photography part 67a and the several imaging | photography part 67b. Specifically, the image recognition unit 75A recognizes the shape, color tone, color, and the like of the heated object O from the plurality of images of the photographing unit 67A, and compares the image recognition result with the database of the cooking condition storage unit 74. Thus, the object to be heated O is specified from the image data having the strongest correlation, that is, the automatic cooking menu that is most likely to be recognized is specified. The specified automatic cooking menu represents the object to be heated O in the heating chamber 2b. Image data with higher rank is more likely to match the object to be heated O. In other words, a candidate for an automatic cooking menu with higher rank is more likely to provide an appropriate heating condition for the object to be heated O. Various known techniques can be applied to the image recognition technique for ranking the objects to be heated O.

  Note that the control device 71A and the image recognition unit 75A may or may not perform the cooking condition determination process in cooperation with the option extraction unit 76 as in the heating cooker 1 of the first embodiment. When the cooking condition determination process is not performed, the image recognition unit 75A recognizes the shape, color tone, color, and the like of the heated object O from the image of the photographing unit 67A, adjusts the candidate for the heated object O, The candidate with the highest rank is identified as the object to be heated O. 71 A of control apparatuses control a heating apparatus with the cooking conditions preset with respect to the to-be-heated object O specified by 75 A of image recognition parts, ie, an automatic cooking menu.

  FIG. 23 is a diagram illustrating the relationship between the field of view of the photographing unit and the field of view of the temperature measurement device in the cooking device according to the second embodiment of the present invention.

  As shown in FIG. 23, the temperature measuring device 51 </ b> A of the heating cooker 1 </ b> A according to the present embodiment causes a plurality of, for example, eight infrared sensors 53 arranged in a row to swing stepwise by the infrared sensor driving device 55. The visual field of the temperature measuring device 51A is aligned from the visual field S1 to the visual field S8 in the left-right direction of the heating chamber 2b following the eight infrared sensors 53, and the front and rear of the heating chamber 2b by the stepwise swing of the infrared sensor driving device 55. It is arranged in five lines in the direction (L1 line to L5 line). That is, the temperature measuring device 51A measures the temperatures of 40 locations that have some overlap within the field of view of the imaging unit 67a.

  FIG. 24 is a diagram illustrating an example of the line of sight of the photographing unit and the line of sight of the temperature measuring device in the heating cooker according to the second embodiment of the present invention.

  FIG. 25 is a diagram illustrating an example of the field of view of the photographing unit and the field of view of the temperature measuring device in the cooking device according to the second embodiment of the present invention.

  As shown in FIG. 24 and FIG. 25, the heating cooker 1A according to the present embodiment takes a picture at a position P of “rice” that is to be measured for temperature when “rice” is placed in the field of view of the photographing unit 67a. The visual field of the part 67a and the visual field of the temperature measuring device 51A overlap. Since the temperature measuring device 51A is disposed in the vicinity of the photographing unit 67A, the line of sight LC of the photographing unit 67a and the line of sight LS of the temperature measuring device 51A are substantially parallel to each other in any part of the visual field of the photographing unit 67a. Yes, if the position P to be measured is specified in the image of the photographing unit 67a, it can be easily determined in which visual field of 40 places the temperature of "rice" should be evaluated in the visual field of the temperature measuring device 51A. . As an example, in the case of FIG. 25, the temperature of the object to be heated O is accurately measured by measuring the temperature of “rice” in the field S6 and field S7 of the third row (L3) including the position P. It can be measured.

  FIG. 26 is a diagram illustrating an example of the line of sight of the photographing unit and the line of sight of the temperature measuring device in the cooking device according to the second embodiment of the present invention.

  FIG. 27 is a diagram illustrating an example of the field of view of the photographing unit and the field of view of the temperature measurement device in the cooking device according to the second embodiment of the present invention.

  As shown in FIGS. 26 and 27, the heating cooker 1 </ b> A according to the present embodiment places “alcohol” in the field of view of the photographing unit 67 a at the position P of “alcohol” to be measured. The field of view of the photographing unit 67a and the field of view of the temperature measuring device 51A overlap. As in the case of “rice”, if the position P to be measured is specified in the image of the photographing unit 67a, the temperature of “alcohol” in any of the 40 visual fields in the visual field of the temperature measuring device 51A. Can be easily determined. As an example, in the case of FIG. 27, the temperature of the object to be heated O can be measured with high accuracy by measuring the temperature of “alcohol” in the visual field S8 of the third row (L3) including the position P. .

  That is, the heating cooker 1A according to the present embodiment sets the line of sight LC of the photographing unit 67a and the line of sight LS of the temperature measuring device 51A in a substantially parallel positional relationship, so that the heating cooker 1A can take any position in the visual field of the photographing unit 67a. The relationship between the position P to be measured and the visual field position in the temperature measuring device 51A can be matched.

  When the antenna 41 has directivity, the control device 71A controls the antenna driving unit 42 so as to irradiate more high-frequency radio waves to the lower temperature portion of the heated object O from the measurement result of the temperature measurement device 51A. The control device 71A specifies the size of the object to be heated O by the plurality of image capturing units 67A, and combines the image of the image capturing unit 67a and the measurement result of the temperature measuring device 51A. The antenna drive unit 42 is controlled so that the antenna 41 is directed so that more high-frequency radio waves are irradiated to the part than the other part. Note that the control device 71A may control the output of the magnetron 38 while rotating the antenna 41 at a constant speed so as to irradiate the part with more high-frequency radio waves than other parts.

  The heating cooker 1A according to the present embodiment includes the photographing unit 67A to compensate for the blind spots of the photographing units 67a and 67b, and to image the object to be heated O placed at an arbitrary place on the bottom surface of the heating chamber 2b. It is possible to capture and reliably perform image recognition processing.

  In addition, the heating cooker 1A according to the present embodiment reliably generates the blind spots by arranging the photographing units 67a and 67b on different wall surfaces in the heating chamber 2b, that is, the right side wall 5b and the left side wall 5c. Can be suppressed.

  Furthermore, the heating cooker 1A according to the present embodiment arranges the photographing units 67a and 67b on the mutually opposing wall surfaces in the heating chamber 2b, that is, on the right side wall 5b and the left side wall 5c, so It is possible to compensate for each other more reliably and to prevent the generation of blind spots.

  Furthermore, the heating cooker 1A according to the present embodiment estimates the size of the object to be heated O from the images of the imaging units 67a and 67b, estimates the approximate maximum heating time required for heating from the size, Even if the estimated maximum heating time is reached, the heating is stopped for an abnormality such as the measured temperature of the temperature measuring device 51A not increasing, and overheating of the article to be heated O is avoided.

  Moreover, 1 A of heating cookers which concern on this embodiment can catch the position of the to-be-heated object O which should be made into the object which measures temperature by providing the temperature measurement apparatus 51A, and can suppress generation | occurrence | production of a heating nonuniformity. In particular, the occurrence of heating unevenness can be more significantly suppressed by the antenna 41 having directivity in addition to the temperature measuring device 51A.

  Therefore, according to the heating cooker 1A according to the present embodiment, the blind spot of an image used for image recognition can be reduced, and the object to be heated O can be arranged more flexibly.

[Third Embodiment]
A third embodiment of the heating cooker according to the present invention will be described with reference to FIGS. 28 to 32.

  FIG. 28 is a functional block diagram showing a cooking device according to the second embodiment of the present invention.

  In the heating cooker 1B according to the present embodiment, the same components as those in the heating cooker of the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 28, the heating cooker 1B according to this embodiment includes a display unit 17, a heating condition setting dial 18, a heating start instruction switch 19, a release instruction switch 21, a drink key 22a, a drink key 22b, and a microwave oven. Key 22c, oven key 22d, steam key 22e, oven cooking mechanism 29, microwave cooking mechanism 37, steam cooking mechanism 59, temperature measuring device 51, door opening / closing sensor 72, notification unit 73, cooking condition storage unit 74, photographing unit 67 A control device 71B and an image recognition unit 75B.

  The control device 71B includes a microcomputer, and includes a central processing unit (not shown), a memory (not shown), an I / O unit (not shown), and a timer (not shown). The control device 71B is based on the operations received by the heating condition setting dial 18, the heating start instruction switch 19, the release instruction switch 21, the drink key 22a, the food key 22b, the microwave key 22c, the oven key 22d, and the steam key 22e. The operation of the oven cooking mechanism 29, the microwave cooking mechanism 37, and the steam cooking mechanism 59 is controlled. When the door 3 is closed by the door opening / closing sensor 72, the control device 71B permits the operation of the oven cooking mechanism 29 and permits the operation of the microwave cooking mechanism 37.

  In addition, the control device 71B operates the notification unit 73 to sound a buzzer and notifies the user of the end of the operation of the oven cooking mechanism 29, the end of the operation of the microwave cooking mechanism 37, and the end of the operation of the steam cooking mechanism 59. .

  Furthermore, the control device 71B selects and determines items based on the operations received by the heating condition setting dial 18, the drink key 22a, the drink key 22b, the microwave key 22c, the oven key 22d, and the steam key 22e. The operating state of the heating cooker 1B based on the operation received by the instruction switch 19 or the release instruction switch 21 is displayed on the display unit 17.

  The image recognition unit 75B is processed and executed by the control device 71B.

  The image recognizing unit 75B specifies the object to be heated O in the heating chamber 2b from the plurality of images received from the photographing unit 67. Specifically, the image recognition unit 75B recognizes the shape, color tone, color, and the like of the heated object O from the image of the photographing unit 67, compares the image recognition result with the database of the cooking condition storage unit 74, and The heated object O is identified from the image data having the strongest correlation, that is, the automatic cooking menu that is most likely to be recognized is identified. The specified automatic cooking menu represents the object to be heated O in the heating chamber 2b. Image data with higher rank is more likely to match the object to be heated O. In other words, a candidate for an automatic cooking menu with higher rank is more likely to provide an appropriate heating condition for the object to be heated O. Various known techniques can be applied to the image recognition technique for ranking the objects to be heated O.

  In addition, the image recognition unit 75B compares the images received from the photographing unit 67 in time series and performs a motion analysis that extracts the object to be heated O from a portion with motion. Specifically, when the door 3 is opened, the heating cooker 1B captures images in the heating chamber 2b with the photographing unit 67 at predetermined time intervals, for example, at intervals of 0.1 seconds. The motion of the image is analyzed by comparing the image with the previous image.

  The image recognizing unit 75B performs image recognition of the object to be heated O from a portion moving from the outside of the cooking chamber 2 to the inside of the cooking chamber 2 through the opening 2a of the cooking chamber 2 among the images received from the imaging unit 67, Identify this. On the other hand, the image recognizing unit 75B excludes, from the image recognition of the object to be heated O, a portion that moves from the inside of the cooking cabinet 2 to the outside of the cooking cabinet 2 among the images received from the photographing unit 67. By the way, on the image, whether the “movement from the outside of the cooking chamber 2 to the inside of the cooking chamber 2” or “the movement from the inside of the cooking cabinet 2 to the outside of the cooking chamber 2” is determined by placing the photographing unit 67 on the right side wall 5b of the heating chamber 2b. Or it can specify easily by arrange | positioning to the left side wall 5c. For example, when the photographing unit 67 is arranged on the right side wall 5b, the movement from the left side to the right side of the image is "movement from outside the cooking chamber 2 into the cooking chamber 2", and from the right side to the left side of the image. The heading movement is “movement from the inside of the cooking cabinet 2 to the outside of the cooking cabinet 2”.

  The motion analysis of the image recognition unit 75B is continuously performed during a period from when the door opening / closing sensor 72 detects the opening of the door 3 until the door 3 is detected to be closed.

  FIG. 29 is a diagram illustrating an example of an image photographed by the photographing unit of the heating cooker according to the third embodiment of the present invention.

  FIGS. 29 (a) to 29 (h) show how “milk” is placed in an empty heating chamber 2b, and the user's hand and arm carrying “milk” are evacuated outside the heating chamber 2b. ing. Note that the number of frames in the imaged layer is thinned out.

  The image recognition unit 75B analyzes the movement of the image by comparing each image as shown in FIG. 29A to FIG. 29H with the immediately preceding image.

  First, the case where the to-be-heated object O is arrange | positioned in the empty heating chamber 2b is demonstrated.

  FIG. 30 is a diagram illustrating an example of motion analysis of the heating cooker according to the third embodiment of the present invention.

  In FIG. 30 (a) to FIG. 30 (e), since “milk” and the user's hands / arms enter the empty heating chamber 2b, the shaded portions in the respective drawings are “moving portions”. ". On the other hand, in FIG. 30F to FIG. 30H, the user's hand / arm retreating from the inside of the heating chamber 2b to the outside of the heating chamber 2b is excluded from the object of motion analysis. Finally, the shaded portion in FIG. 30E, that is, “milk” and a partial image in which the user's hand / arm is photographed are “moving” for recognizing the object to be heated O. Extracted as “part”. The “moving part” to be the image recognition target is an image obtained by removing most of the background from the original image.

  Next, a case where the object to be heated O is taken out of the heating chamber 2b and the next object to be heated O is arranged in the heating chamber 2b will be described.

  31 and 32 are diagrams showing an example of motion analysis of the heating cooker according to the third embodiment of the present invention.

  In FIG. 31A, “rice” is arranged as an object to be heated O in the heating chamber 2b. In FIGS. 31 (b) to 31 (d), since the user's hand / arm enters the heating chamber 2b, the shaded portion in each figure, that is, the user's hand / arm is photographed. The obtained partial image is extracted as a “moving part”. On the other hand, in FIG. 31 (e) to FIG. 31 (h), “rice” retreating from the inside of the heating chamber 2b to the outside of the heating chamber 2b and the user's hand / arm are excluded from the object of motion analysis. Finally, a shaded portion in FIG. 31H, that is, a partial image in which the user's hand / arm is photographed is extracted as a “moving portion”. In FIG. 32 (h), the inside of the heating chamber 2b becomes empty.

  In FIGS. 32 (a) to 32 (e), “milk” and the user's hand / arm enter the empty heating chamber 2b. It is extracted as a “part”. On the other hand, in FIG. 32 (f) to FIG. 32 (h), the user's hand / arm retreating from the inside of the heating chamber 2b to the outside of the heating chamber 2b is excluded from the object of motion analysis. Finally, the shaded portion in FIG. 32 (e), that is, “milk” and a partial image in which the user's hand / arm is photographed are “moving” for recognizing the object to be heated O. Extracted as “part”. The “moving part” to be the image recognition target is an image obtained by removing most of the background from the original image. In the “part with movement” in FIG. 32E, the “part with movement” in FIG. 32H overlaps. This overlapping portion does not enlarge the “moving portion” for recognizing the object to be heated O when the user's hand / arm passes through the same location in the heating chamber 2b. In addition, this overlapping portion greatly enlarges the “moving portion” for recognizing the object to be heated O even when the user's hand / arm passes through different places in the heating chamber 2b. Nor.

  Note that the control device 71B and the image recognition unit 75B may or may not perform the cooking condition determination process in cooperation with the option extraction unit 76 as in the heating cooker 1 of the first embodiment. When the cooking condition determination process is not performed, the image recognition unit 75B recognizes the shape, color tone, color, and the like of the heated object O from the image of the photographing unit 67, adjusts the candidate for the heated object O, The object to be heated O is identified as the candidate with the highest rank. The control device 71B controls the heating device according to cooking conditions set in advance for the article to be heated O specified by the image recognition unit 75B, that is, an automatic cooking menu.

  The heating cooker 1B according to the present embodiment extracts an object to be heated O from a moving part by comparing the images of the photographing unit 67 in time series, and thereby the illumination state in the heating chamber 2b and the heating chamber Without being affected by environmental conditions such as the degree of dirt in 2b, the part where the heated object is photographed is reliably extracted from the image to reduce the burden of image recognition processing and improve the accuracy of image recognition. Can contribute.

  In addition, the heating cooker 1B according to the present embodiment can eliminate unnecessary image recognition and motion analysis by performing motion analysis when the door 3 is opened, thereby further reducing the burden of image recognition processing. .

  Furthermore, the heating cooker 1B according to the present embodiment specifies the object to be heated O from the portion that moves from the outside of the cooking chamber 2 to the inside of the cooking chamber 2 in the image, whereby the heating object from the heating chamber 2b. Without being affected by the movement of taking out O, it is possible to reduce the burden of image recognition processing and to improve the accuracy of image recognition.

  Furthermore, the cooking device 1 </ b> B according to the present embodiment arranges the photographing unit 67 on the wall surface adjacent to the door 3, and moves from the cooking chamber 2 to the cooking chamber 2 and cooks from the cooking chamber 2. The movement toward the outside of the cabinet 2 can be clearly separated to reduce the load of the image recognition process and contribute to the improvement of the accuracy of the image recognition.

  Therefore, according to the heating cooker 1B according to the present embodiment, it is possible to more reliably extract the portion where the object to be heated O is placed from the image used for image recognition, to reduce the burden of image recognition, and to be heated. The identification accuracy of the object O can be improved.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

1, 1A, 1B Heating cooker 2 Cooking chamber 2a Opening 2b Heating chamber 2c Front surface 3 Door 5 Inner box 5a Back wall 5b Right side wall 5c Left side wall 5d Bottom wall 5e Top wall 6 Outer box 6a Back wall 6c Left side wall 7 Tray 8 Upper hot air outlet 9 Lower hot air outlet 11 Suction port 13 Steam outlet 15 Operation unit 16 Input unit 17 Display unit 18 Heating condition setting dial 19 Heating start instruction switch 21 Release instruction switch 22a Drink key 22b Food key 22c Microwave oven key 22d Oven key 22e Steam key 22 Menu key 23 Storage tank 24 Dish 25 Cover member 26 Clearance 26a Clearance 26b Clearance 26c Clearance 29 Oven cooking mechanism 31 Fan device 32 Heater 32a Upper side 32b Lower side 33 Casing 35 Fan motor 36 Centrifugal fan 37 Microwave oven Cooking mechanism 38 Magnetron 39 Waveguide 41 Antenna 2 Antenna driving unit 43 Recess 45 Radio wave transmitting plate 46 Heat insulating material 47 Leg 51, 51A Temperature measuring device 52 Temperature measuring window 53 Infrared sensor 55 Infrared sensor driving device 56 Temperature detecting element 57 Output shaft 59 Steam cooking mechanism 61 Steam generating device 62 Electric pump 63 Hose 65 Evaporating heater 67, 67A, 67a, 67b, 67c Imaging unit 68 Imaging window 71, 71A, 71B Control device 72 Door open / close sensor 73 Notification unit 74 Cooking condition storage unit 75, 75A, 75B Image recognition unit 76 Options Extraction unit 77 Anode current detection circuit

Claims (13)

A cooking chamber that partitions a heating chamber in which an object to be heated can be taken in and out;
A high-frequency heating device that heats the object to be heated by radiating high-frequency radio waves into the heating chamber;
A photographing unit for photographing an image in the heating chamber;
An image recognition unit that analyzes the image and adjusts the candidate for the object to be heated;
An option extraction unit for extracting options from the candidate for the object to be heated;
A display unit for displaying the options;
A selection input unit that selectively accepts one candidate input from the options,
The said display part is a heating cooker which displays the said choice in order of the certainty of the recognition which concerns on the said to-be-heated material candidate. The cooking device according to claim 1, wherein the display unit displays a candidate with the highest ranking with higher visibility than other candidates. The cooking device according to claim 1 or 2, wherein the selection input unit uses a candidate with the highest ranking as an initial value. The display unit continuously displays all the options within a predetermined time after the high-frequency heating apparatus starts operation,
The cooking according to any one of claims 1 to 3, wherein the selection input unit selectively accepts re-inputs of other candidates within the predetermined time period even after the high-frequency heating apparatus starts operation. vessel. A cooking chamber that partitions a heating chamber in which an object to be heated can be taken in and out;
A high-frequency heating device that heats the object to be heated by radiating high-frequency radio waves into the heating chamber;
A plurality of imaging units that capture images of the heating chamber from a plurality of different locations;
An image recognition unit for analyzing the image and identifying the object to be heated;
A temperature measuring device for measuring the temperature of the object to be heated in the heating chamber;
A control unit that controls the high-frequency heating device under cooking conditions set in advance for an object to be heated specified by the image recognition unit,
At least two of the photographing units are respectively disposed on mutually opposing wall surfaces in the heating chamber,
The control unit estimates the size of the object to be heated from the plurality of images captured by the plurality of imaging units, and predicts the heating time of the object to be heated from the estimation result of the size of the object to be heated. And the cooking device which stops heating and avoids overheating of the said to-be-heated object, if abnormality arises in the measurement temperature of the said temperature measuring apparatus . The temperature measuring device, the heating cooker according to 請 Motomeko 5 that measure the temperature of a plurality of positions of said heating chamber. The cooking device according to claim 6, wherein the temperature measuring device includes a plurality of temperature detection elements arranged in a straight line, and a drive unit that swings the plurality of temperature detection elements in a direction intersecting the arrangement. . The cooking device according to claim 6 or 7, wherein the temperature measuring device is arranged in the vicinity of the photographing unit. The high-frequency heating device includes an antenna having directivity, and an antenna driving unit that rotationally drives the antenna.
The said control part controls the said antenna drive part so that more high frequency radio waves may be irradiated to the low temperature part of the said to-be-heated object from the measurement result of the said temperature measuring apparatus. The heating cooker described in 1. The cooking device according to any one of claims 5 to 9, wherein the image recognition unit compares the images in time series and performs a motion analysis to extract the object to be heated from a portion having a motion. The cooking device according to claim 10, wherein the image recognition unit performs the motion analysis when a door of the cooking chamber is opened. The cooking device according to claim 11, wherein the image recognition unit identifies the object to be heated from a portion of the image that moves from outside the cooking chamber toward the cooking chamber. The cooking device according to claim 11 or 12, wherein the photographing unit is disposed on a wall surface adjacent to the door.