JP6868463B2 - Cooker - Google Patents

Description

The techniques disclosed herein relate to cookers.

The heating cooker disclosed in Patent Document 1 includes a main body provided with a top plate, a heating unit for heating an object to be heated by heat above the top plate, and an imaging unit arranged above the top plate. It has. The imaging unit puts the periphery of the heating unit within the imaging range and images the cooking cooker from above to below the top plate. And when there is a human body or clothes in a specific area, the firepower is reduced.

JP-A-2015-230148

In the technique of Patent Document 1, the image pickup unit images the cooking cooker from the upper side to the lower side of the top plate, but at this time, the image pickup unit may image an extra range. For example, a user may be standing in front of the cooker, but the range does not need to be imaged. If this user is imaged, the thermal power may be unintentionally reduced, so it is sufficient to be able to image the range related to heating. Further, when the image is taken from above to below the top plate, the height of the imaged object cannot be grasped. Therefore, there is a possibility that the firepower may be reduced even if the human body or clothes are present at a height at which the human body or clothes would not normally ignite. Therefore, the present specification provides a technique capable of suppressing the imaging of an extra range while imaging the required range in the cooking cooker.

The heating cooker disclosed in the present specification includes a main body provided with a top plate, a first heating unit that heats an object to be heated by heat above the top plate, and the top plate on the front side of the main body. It includes a first imaging unit arranged below and a control unit. A first transmission window is formed on the top plate on the front side of the main body. The first imaging unit puts the periphery of the first heating unit within the imaging range, and the heavens from below the top plate on the front side of the main body toward the back side of the main body through the first transmission window. Image the top of the board. When the control unit detects that an object has entered a predetermined range above the top plate based on the image captured by the first imaging unit, the thermal power of the first heating unit is reduced. The heating cooker is arranged next to the first heating unit, and further includes a second heating unit that heats the object to be heated by heat above the top plate. The first imaging unit is arranged below the top plate between the first heating unit and the second heating unit. When the control unit detects that an object has entered the predetermined range above the top plate based on the image captured by the first imaging unit, the first heating unit and the second heating unit Reduces the firepower of.

According to such a configuration, it is possible to suppress the imaging of an extra range while imaging the required range. For example, in a heating cooker, since the first heating unit heats the object to be heated above the top plate, it suffices if the range can be imaged. It is not necessary to image the user who is in front of the cooker. Therefore, according to the above configuration, it is possible to exclude the user who is on the front side of the cooking cooker from the imaging range while imaging the upper part of the top plate.
Further, for example, since the range in which there is a risk of clothing ignition can be set in the height direction, it becomes possible to appropriately reduce the thermal power in order to prevent clothing ignition.

Further, according to the above configuration, since the first imaging unit is arranged below the top plate, it is possible to prevent the first imaging unit from becoming dirty. For example, even if cooking oil is scattered around the first heating portion when the object to be heated is heated by the first heating portion, the scattered cooking oil adheres to the top plate and is arranged below the top plate. It is possible to prevent the first imaging unit from becoming dirty.

According to such a configuration, when an extra object (for example, a human body or clothes) invades within a predetermined range above the top plate, the thermal power of the first heating portion and the second heating portion can be reduced, which is safe. Can be managed. Further, the thermal power of the two heating units (first heating unit and second heating unit) can be reduced based on the imaging of one imaging unit (first imaging unit). Therefore, safety management can be performed efficiently.

The cooking cooker disclosed in the present specification includes a main body provided with a top plate, a first heating unit that heats an object to be heated by heat above the top plate, and the top plate on the front side of the main body. It includes a first imaging unit arranged below and a control unit. A first transmission window is formed on the top plate on the front side of the main body. The first imaging unit puts the periphery of the first heating unit within the imaging range, and the heavens from below the top plate on the front side of the main body toward the back side of the main body through the first transmission window. Image the top of the board. When the control unit detects that an object has entered a predetermined range above the top plate based on the image captured by the first imaging unit, the thermal power of the first heating unit is reduced. The heating cooker further includes a second heating unit arranged next to the first heating unit, a second imaging unit arranged below the top plate on the front side of the main body, and a control unit. You may be. The second heating unit heats the object to be heated by thermal power above the top plate. A second transmission window may be formed on the top plate on the front side of the main body. Further, the second imaging unit puts the periphery of the second heating unit within the imaging range, and from below the top plate on the front side of the main body toward the back side of the main body through the second transmission window. The upper part of the top plate may be imaged. When the control unit detects that an object has entered a predetermined range around the first heating unit based on the image captured by the first imaging unit, the thermal power of the first heating unit is increased. If it is reduced and it is detected that an object has invaded within a predetermined range around the second heating unit based on the image captured by the second imaging unit, the thermal power of the second heating unit may be reduced. Good.

According to such a configuration, when an extra object (human body or clothes) invades within a predetermined range above the top plate, the thermal power of the first heating part or the second heating part can be reduced, and safety management can be performed. It can be performed. Further, the thermal power of the first heating unit can be reduced based on the imaging of the first imaging unit, while the thermal power of the second heating unit can be reduced based on the imaging of the second imaging unit. Therefore, safety management can be reliably performed according to the imaging range of each imaging unit.

Further, the heating cooker may further include a first heating unit and a third heating unit arranged on the inner side of the main body of the second heating unit. The control unit detects that an object has entered a predetermined range around the first heating unit based on the image captured by the first imaging unit, and the second imaging unit captures the image in an overlapping manner. When it is detected that an object has invaded within a predetermined range around the second heating unit based on the image, the thermal power of the first heating unit, the second heating unit, and the third heating unit is reduced. You may.

If the detection of an object based on the imaging of the first imaging unit and the detection of the object based on the imaging of the second imaging unit overlap, it is considered that an extra object (human body or clothing) has invaded over a wide area above the top plate. Can be done. Therefore, in this case, by reducing the heating power of the first heating unit, the second heating unit, and the third heating unit, the heating power of the entire cooking cooker can be reduced and the safety can be improved.

The cooking cooker disclosed in the present specification includes a main body provided with a top plate, a first heating unit that heats an object to be heated by heat above the top plate, and the top plate on the front side of the main body. It includes a first imaging unit arranged below and a control unit. A first transmission window is formed on the top plate on the front side of the main body. The first imaging unit puts the periphery of the first heating unit within the imaging range, and the heavens from below the top plate on the front side of the main body toward the back side of the main body through the first transmission window. Image the top of the board. When the control unit detects that an object has entered a predetermined range above the top plate based on the image captured by the first imaging unit, the thermal power of the first heating unit is reduced. When the control unit detects that an object other than the first heating unit has ignited outside the predetermined range above the top plate based on the image captured by the first imaging unit, the first 1 The heating part may be extinguished.

If an object other than the heating part (for example, oil or food in a pan or frying pan that is the object to be heated) catches fire, extinguishing is required to ensure safety. Therefore, when the control unit detects ignition of an object other than the heating unit, the heating unit is extinguished. As a result, safety can be ensured.

Further, the heating cooker may further include a display unit arranged below the first transmission window formed on the top plate. The display unit displays information about the cooking device.

When the display unit is located below the transparent window, it is expected that the first transparent window will be cleaned and kept clean so that the user can easily see the display unit. Therefore, the transparency of the first transmission window is improved, and when the imaging unit takes an image of the upper part of the top plate, the image can be taken through the clean first transmission window.

It is a perspective view which looked at the cooker which concerns on 1st Example from the front side toward the back side. It is a figure which shows the main part of the cooking apparatus which concerns on 1st Example in an enlarged manner. It is a figure which shows the control structure of the cooking apparatus which concerns on 1st Example. It is a flowchart of the process of 1st Example executed by a cooking apparatus. It is a figure which shows the reference image and the captured image which concerns on 1st Example (1). It is a figure which shows the reference image and the captured image which concerns on 1st Example (2). It is a perspective view which looked at the cooker which concerns on 2nd Example from the front side toward the back side. It is a figure which shows the reference image and the captured image which concerns on 2nd Example. It is a figure which shows the reference image and the captured image which concerns on 4th Example.

(First Example)
(Structure of cooking cooker 2)
The cooking device 2 will be described with reference to FIGS. 1 and 2. The heating cooker 2 is a gas combustion type built-in stove that is used by being incorporated in a system kitchen. The heating cooker 2 includes a main body 4 whose front surface 4a is exposed on the front side of the system kitchen. A top plate 6 exposed to the counter top of the system kitchen is arranged on the upper part of the main body 4. The top plate 6 is provided with three trivets 8a, 8b, 8c that support cooking containers such as a pot and a frying pan, which are objects to be heated, and corresponding to the respective trivets 8a, 8b, 8c. Three stove burners 10a, 10b, 10c that heat the object to be heated supported by the trivets 8a, 8b, 8c, and sensors 12a, 12b, 12c provided corresponding to the respective stove burners 10a, 10b, 10c. And are provided.

Two stove burners 10a and 10b are arranged on the front side of the main body 4, and one stove burner 10c is arranged on the back side of the main body 4. Further, the stove burner 10a is arranged on the left side, and the stove burner 10b is arranged on the right side. The stove burner 10c is arranged at the center in the left-right direction. A gas supply path (not shown) is connected to each of the stove burners 10a, 10b, and 10c arranged adjacent to each other. The gas supply path is provided with a flow rate adjusting valve for adjusting the amount of gas supplied to the stove burners 10a, 10b, and 10c. The stove burners 10a, 10b, and 10c are ignited by operating an igniter (not shown) in a state where gas is supplied to the stove burners 10a, 10b, and 10c. By adjusting the amount of gas supplied to the stove burners 10a, 10b and 10c, the heating amount of the stove burners 10a, 10b and 10c can be adjusted. Then, by stopping the supply of gas to the stove burners 10a, 10b and 10c, the stove burners 10a, 10b and 10c are extinguished. The stove burners 10a, 10b and 10c have a similar structure.

The main body 4 has a grill storage 20 provided inside the main body 4 for storing foodstuffs, a grill door 22 arranged on the front surface 4a of the main body 4 to open and close the grill storage 20, and a grill door 22 on the front surface 4a of the main body 4. It is provided with a stove operation unit 24 provided on the right side of the main body 4 and a grill operation unit 26 provided on the left side of the grill door 22 on the front surface 4a of the main body 4. Inside the grill storage 20, a grill burner 20a (not shown) for heating the foodstuffs housed in the grill storage 20 is provided. In the cooking cooker 2, the front surface 4a of the main body 4 and the upper surface of the top plate 6 form an outer surface exposed to the user.

One transmission window 90 is formed on the top plate 6 of the heating cooker 2. The transmission window 90 is formed on the top plate 6 on the front side (user side) of the main body 4. Further, the transmission window 90 is formed at the central portion of the main body 4 in the left-right direction. The transmission window 90 is formed between the left stove burner 10a and the right stove burner 10b. Transparent glass is fitted in the transparent window 90.

As shown in FIG. 2, a camera 80 is arranged below the transmission window 90. The camera 80 images the upper part of the top plate 6 from below the top plate 6 through the transmission window 90. The camera 80 can take an image of the upper part of the cooking device 2. Further, the camera 80 is arranged on the front side (user side) of the main body 4. The camera 80 takes an image of the upper part of the top plate 6 from the front side to the back side of the main body 4. Further, the camera 80 images the upper part of the top plate 6 with the periphery of the stove burners 10a, 10b, and 10c within the imaging range. The camera 80 continuously images the upper part of the top plate 6.

A liquid crystal display unit 84 is arranged next to the camera 80. The display unit 84 is arranged on the back side of the main body 4 with respect to the camera 80. The display unit 84 is arranged below the transmission window 90 formed on the top plate 6. The display unit 84 displays information about the cooker 2. For example, the display unit 84 displays the operating states of the stove burners 10a, 10b, 10c and the grill burner 20a.

As shown in FIG. 1, sensors 12a, 12b, and 12c are provided corresponding to the stove burners 10a, 10b, and 10c. The sensors 12a, 12b, and 12c detect the presence of the object to be heated and also detect the temperature of the object to be heated. When the heating target (for example, a pan or a frying pan) is placed on the stove burners 10a, 10b, 10c, the sensors 12a, 12b, and 12c can detect the heating target. When the object to be heated (pot or frying pan) is placed on the stove burners 10a, 10b, 10c, the sensors 12a, 12b, 12c are pressed by the object to be heated. The sensors 12a, 12b, 12c detect that the object to be heated is placed on the stove burners 10a, 10b, 10c when pressed by the object to be heated. When the object to be heated is not placed on the stove burners 10a, 10b and 10c, the sensors 12a, 12b and 12c are not pressed.

The stove operation unit 24 includes a power switch 40 of the cooking cooker 2, three heating amount operation units 42a, 42b, 42c, and a panel operation unit 44. The heating amount control units 42a, 42b, and 42c correspond to the stove burners 10a, 10b, and 10c, respectively. Further, the heating amount control units 42a, 42b, and 42c are surrounded by LED light emitting units 43a, 43b, and 43c, which can emit blue or red light, respectively. The heating amount operating unit 42a is an operating unit for igniting and extinguishing the stove burner 10a and adjusting the heating amount of the stove burner 10a. The heating amount control unit 42a is an alternate type switch. When the user executes an operation for moving the heating amount operating unit 42a from the fire extinguishing position to the ignition position (hereinafter referred to as “ignition operation”), the stove burner 10a is ignited, and the heating amount operating unit 42a is ignited by the user. When an operation for moving the stove from the ignition position to the fire extinguishing position (hereinafter referred to as "fire extinguishing operation") is executed, the stove burner 10a is extinguished. The ignition position is a position where the front surface of the heating amount operating unit 42a protrudes forward from the front surface 4a of the main body 4, and the fire extinguishing position is a position where the heating amount operating unit 42a is housed in the main body 4. is there. Further, the user can adjust the heating amount of the stove burner 10a by operating the heating amount operating unit 42a clockwise or counterclockwise while the heating amount operating unit 42a is located at the ignition position. it can. The heating amount operating units 42b and 42c have the same structure as the heating amount operating unit 42a.

The panel operation unit 44 includes a display unit 46, a heating temperature operation unit 48a, 48b, an automatic cooking selection operation unit 50a, 50b, a heating time operation unit 52a, 52b, 52c, a recipe selection operation unit 54, and a cooking state. It includes an operation unit 56. The display unit 46 displays the operating states of the stove burners 10a, 10b, and 10c. The heating temperature operation unit 48a is an operation unit for setting the temperature (for example, 180 ° C.) of the object to be heated to be heated by the stove burner 10a. The heating time operation unit 52a is an operation unit for setting the heating time (for example, 5 minutes) of the stove burner 10a. The automatic cooking selection operation unit 50a is an operation unit for selecting cooking in the automatic cooking mode using the stove burner 10a. The heating temperature operation unit 48b, the automatic cooking selection operation unit 50b, and the heating time operation unit 52b are the heating temperature operation unit 48a, the automatic cooking selection operation unit 50a, respectively, except that they are operation units corresponding to the stove burner 10b, respectively. It has the same function as the heating time operation unit 52a. The recipe selection operation unit 54 is an operation unit for selecting a recipe to be cooked in the automatic cooking mode. The cooking state operation unit 56 is an operation unit for adjusting the state of the ingredients cooked in the automatic cooking mode, for example, the degree of baking. The heating time operation unit 52c has the same function as the heating time operation unit 52a except that it is an operation unit corresponding to the stove burner 10c.

The grill operation unit 26 includes a heating amount operation unit 60 and a panel operation unit 62. The heating amount control unit 60 is surrounded by an LED light emitting unit 61 capable of emitting blue or red light. By operating the heating amount control unit 60, the user can ignite and extinguish the grill burner 20a and adjust the heating amount of the grill burner 20a. The structure of the heating amount operating unit 60 is the same as that of the heating amount operating unit 42a of the stove operating unit 24.

The panel operation unit 62 includes a display unit 64, an automatic cooking selection operation unit 66, a recipe selection operation unit 68, and a cooking state operation unit 70. The display unit 64 displays the operating state of the grill burner 20a and the like. The functions of the automatic cooking selection operation unit 66, the recipe selection operation unit 68, and the cooking state operation unit 70 are the automatic cooking selection operation unit 50a and the recipe selection operation unit 54, respectively, except that they are the operation units corresponding to the grill burner 20a. , Has the same function as the cooking state operation unit 56.

Subsequently, the control configuration of the cooking cooker 2 will be described with reference to FIG. In addition, in FIG. 3, in order to make the explanation easy to understand, the stove burner 10b, 10c, the sensor 12b, 12c, the heating amount operation unit 42b, 42c, the LED light emitting unit 43b, 43c, the heating temperature operation unit 48b, the automatic cooking selection operation. The illustration is omitted for the parts 50b and the heating time operation parts 52b and 52c. Further, in the following, the description of the configuration described with reference to FIG. 1 will be omitted.

The cooking cooker 2 includes a control unit 110. The control unit 110 controls the operation of each component of the cooking cooker 2. The control unit 110 includes a heating control unit 112 and an instruction transmission unit 114. The heating control unit 112 controls the operation of the burners 10a, 10b, 10c, and 20a. When each operation unit is operated by the user, the instruction transmission unit 114 transmits an instruction corresponding to the operation to the operation unit to the heating control unit 112. Further, the control unit 110 includes a memory 120. The memory 120 is composed of a volatile memory, a non-volatile memory, and the like.

(Processing performed by the cooker 2)
Subsequently, with reference to FIG. 4, the process executed by the control unit 110 of the cooking cooker 2 will be described. In the cooking cooker 2, when the power switch 40 is turned on, the process shown in FIG. 4 is started. As shown in FIG. 4, in step S11, the control unit 110 monitors the reception of the ignition operation signal. The ignition operation signal is transmitted from the heating amount control unit 42a, 42b, or 42c. When the user of the heating cooker 2 executes the ignition operation on the heating amount operating units 42a, 42b, or 42c, the heating amount operating unit 42a, 42b, or 42c transmits an ignition operation signal to the control unit 110. For example, when a user executes an ignition operation on the heating amount operation unit 42a corresponding to the stove burner 10a in order to ignite the left stove burner 10a, an ignition operation signal is transmitted from the heating amount operation unit 42a to the control unit 110. .. Further, the left stove burner 10a ignites. When the control unit 110 receives the ignition operation signal from the heating amount operation units 42a, 42b, or 42c, the control unit 110 determines YES in step S11 and proceeds to step S12. On the other hand, when the control unit 110 does not receive the ignition operation signal from the heating amount operation units 42a, 42b, or 42c, the control unit 110 determines NO in step S11 and stands by.

Subsequently, in step S12, the control unit 110 stores the reference image 122 in the memory 120. The reference image 122 is an image captured by the camera 80 when the ignition operation is executed by the user. In the above-mentioned cooking cooker 2, the camera 80 arranged below the top plate 6 continuously images the upper part of the top plate 6. The camera 80 images the upper part of the top plate 6 with the periphery of the stove burners 10a, 10b, and 10c within the imaging range. The information of the image captured by the camera 80 is continuously transmitted from the camera 80 to the control unit 110. The control unit 110 continuously receives the information of the image. When the control unit 110 receives the ignition operation signal in step S11, the control unit 110 stores the image captured by the camera 80 at that time as the reference image 122 in the memory 120. The control unit 110 acquires and stores an image when the ignition operation is executed as a reference image 122. The reference image 122 is a still image.

Subsequently, in step S13, the control unit 110 compares the captured image 133 of the camera 80 with the reference image 122. The captured image 133 is an image currently captured by the camera 80. The captured image 133 is an image captured by the camera 80 after the ignition operation is executed by the user. That is, the captured image 133 is an image captured by the camera 80 after the control unit 110 has acquired the reference image 122. In the cooking cooker 2, the camera 80 continuously images the upper part of the top plate 6 even after the ignition operation is executed by the user. The information of the image captured by the camera 80 is continuously transmitted from the camera 80 to the control unit 110. The control unit 110 continuously receives the information of the image. The control unit 110 compares the captured image 133 captured by the camera 80 after the ignition operation is executed by the user with the reference image 122 stored in the memory 120. The captured image 133 is a moving image or a continuous still image.

The comparison between the captured image 133 and the reference image 122 will be described in detail. As shown in FIG. 5A, the control unit 110 sets a predetermined detection range 124 in the reference image 122 stored in the memory 120. The detection range 124 in the reference image 122 is an image range corresponding to the periphery of the stove burner 10a, 10b, or 10c corresponding to the heating amount control unit 42a, 42b, or 42c in which the ignition operation is executed by the user. For example, when the heating amount operation unit 42a on the left side is operated by the user, the image range corresponding to the periphery of the stove burner 10a on the left side corresponding to the operation is set as the detection range 124. The detection range 124 is, for example, an image range corresponding to a range of 10 cm around the stove burner 10a. The detection range 124 can be set and changed as appropriate.

Next, as shown in FIG. 5B, the control unit 110 sets a predetermined detection range 134 in the captured image 133 currently captured by the camera 80. The detection range 134 of the captured image 133 is an image range corresponding to the detection range 124 of the reference image 122 set above. That is, the detection range 134 is an image range corresponding to the periphery of the stove burners 10a, 10b, or 10c corresponding to the heating amount control units 42a, 42b, or 42c for which the ignition operation has been executed by the user. The detection range 134 of the captured image 133 can be appropriately set and changed according to the detection range 124 of the reference image 122. The control unit 110 compares the detection range 134 in the captured image 133 with the detection range 124 in the reference image 122.

In the cooking cooker 2, some object may invade around the igniting stove burner 10a (the left stove burner 10a corresponding to the left heating amount operation unit 42a in which the ignition operation is executed by the user). For example, when the user lifts a pan or frying pan placed on the left stove burner 10a that is igniting, the user's hand or the sleeve of the clothes may invade the periphery of the stove burner 10a. Alternatively, when the user places a pan or frying pan on the right stove burner 10b next to the igniting left stove burner 10a, the left stove burner 10a where the user's hands or sleeves of clothing are igniting. May invade the surrounding area. Then, in the detection range 134 of the captured image 133 currently captured by the camera 80, an object (human body or clothing) that does not exist in the detection range 124 of the reference image 122 will exist. Therefore, the image in the detection range 134 of the captured image 133 is different from the image in the detection range 124 of the reference image 122.

Subsequently, in step S14 shown in FIG. 4, the control unit 110 determines whether or not any object exists around the igniting stove burner 10a. Specifically, the control unit 110 compares the detection range 134 of the captured image 133 with the detection range 124 of the reference image 122, and if there is a difference between the two images, the time is measured from the time when the difference occurs. To start. Then, as a result of measuring the time, when the time when the two images are different exceeds a predetermined threshold time (for example, 5 seconds), the control unit 110 has some object (human body or clothes) around the stove burner 10a. Is determined to be invading. The control unit 110 determines that an object that does not exist in the detection range 124 of the reference image 122 exists in the detection range 134 of the captured image 133 for a predetermined threshold time or longer. In this case, the control unit 110 determines YES in step S14 and proceeds to step S15. On the other hand, if the time when the images in the detection range 134 and the image in the detection range 124 are different does not exceed a predetermined threshold time, the control unit 110 determines that no object has invaded the periphery of the stove burner 10a. In this case, the control unit 110 determines NO in step S14 and returns to step S13.

Subsequently, in step S15, the control unit 110 reduces the thermal power of the stove burners 10a, 10b, or 10c corresponding to the heating amount operating units 42a, 42b, or 42c whose ignition operation has been executed by the user. For example, the control unit 110 reduces the thermal power of the left stove burner 10a corresponding to the left heating amount operation unit 42a. The control unit 110 reduces the thermal power of the stove burner 10a corresponding to the heating amount operation unit 42a of the transmission source of the ignition operation signal in step S11. That is, the control unit 110 reduces the thermal power of the igniting stove burner 10a. For example, the thermal power of the igniting stove burner 10a is changed from high heat to low heat. Further, the fire of the stove burner 10a may be extinguished. As described above, when a foreign substance invades around the igniting stove burner 10a, the control unit 110 reduces the thermal power of the stove burner 10a.

Further, when the right side stove burner 10b next to the left side stove burner 10a is ignited, the control unit 110 reduces not only the left side stove burner 10a but also the right side stove burner 10b in step S15. .. For example, the heating power of the stove burner 10b on the right side is changed from high heat to low heat. Further, the fire of the stove burner 10b may be extinguished.

Subsequently, in step S16, the control unit 110 compares the captured image 133 of the camera 80 with the reference image 122 again. The captured image 133 is an image currently captured by the camera 80. The captured image 133 at this time is an image captured by the camera 80 after the ignition operation is executed by the user and the thermal power of the stove burner 10a is reduced in the above step S15. In the cooking cooker 2, the camera 80 continuously images the upper part of the top plate 6 even after the heating power of the stove burner 10a is reduced. The information of the image captured by the camera 80 is continuously transmitted from the camera 80 to the control unit 110. The control unit 110 continuously receives the information of the image. The control unit 110 compares the captured image 133 captured by the camera 80 after reducing the thermal power of the stove burner 10a with the reference image 122 stored in the memory 120. The captured image 133 is a moving image or a continuous still image.

The comparison between the captured image 133 and the reference image 122 in step S16 is the same as the method for comparing the captured image 133 and the reference image 122 in step S13. Therefore, detailed description of step S16 will be omitted.

Subsequently, in step S17, the control unit 110 determines whether or not any object exists around the igniting stove burner 10a. At the stage where the control unit 110 reduces the thermal power of the stove burner 10a in step S15, an object (human body or clothing) exists in the detection range 134 of the captured image 133. Therefore, as shown in FIG. 5, the image of the detection range 134 of the captured image 133 (see (b)) is different from the image of the detection range 124 of the reference image 122 (see (a)).

In step S17, the control unit 110 compares the detection range 134 of the captured image 133 after reducing the thermal power with the detection range 124 of the reference image 122, and as shown in FIG. 6, both images ((a)). When the difference between the reference image 122 shown in (1) and the captured image 133) shown in (b) disappears, the time measurement is started when the difference disappears. Then, as a result of measuring the time, when the time when the difference between the two images disappears exceeds a predetermined threshold time, the control unit 110 determines that there is no object (human body or clothes) around the stove burner 10a. To do. In this case, the control unit 110 determines NO in step S17 and proceeds to step S18. On the other hand, when the detection range 134 of the captured image 133 and the image of the detection range 124 of the reference image 122 are different from each other after the thermal power is reduced, the control unit 110 still has an object around the stove burner 10a. Then judge. The control unit 110 determines that an object that does not exist in the detection range 124 of the reference image 122 exists in the detection range 134 of the captured image 133. In this case, the control unit 110 determines YES in step S17 and returns to step S16.

Subsequently, in step S18, the control unit 110 increases the thermal power of the stove burner 10a whose thermal power has been reduced. The control unit 110 increases the thermal power of the stove burner 10a corresponding to the heating amount operation unit 42a on the left side of the transmission source of the ignition operation signal in step S11. For example, the thermal power of the stove burner 10a is returned to the thermal power before the reduction. Alternatively, the heating power of the stove burner 10a may be changed from low heat to high heat. If the stove burner 10a is extinguished, the stove burner 10a is ignited. After reducing the thermal power of the stove burner 10a as described above, when the foreign matter disappears from the periphery of the stove burner 10a, the control unit 110 increases the thermal power of the stove burner 10a.

Further, in step S18, when the control unit 110 reduces the thermal power of the stove burner 10b on the right side in step S15, the control unit 110 also increases the thermal power of the stove burner 10b on the right side. For example, the heating power of the stove burner 10b on the right side is changed from low heat to high heat. The heating power of the stove burner 10b on the right side may be returned to the heating power before the reduction. If the stove burner 10b on the right side is extinguished, the stove burner 10b is ignited.

After the end of step S18, the control unit 110 returns to step S13. Further, when the fire extinguishing operation is subsequently executed by the user, the control unit 110 ends the process shown in FIG.

The heating cooker 2 according to the first embodiment has been described above. As is clear from the above description, the heating cooker 2 heats the main body 4 provided with the top plate 6 and the object to be heated (pot or frying pan) by heat above the top plate 6 on the front side of the main body 4. The stove burner 10a and the camera 80 arranged below the top plate 6 on the front side of the main body 4 are provided. A transmission window 90 is formed on the top plate 6 on the front side of the main body 4. In this cooking cooker 2, the camera 80 puts the periphery of the stove burner 10a within the imaging range, and from below the top plate 6 on the front side of the main body 4, the top plate is directed toward the back side of the main body 4 through the transmission window 90. The upper part of 6 is imaged.

Since the heating cooker 2 heats the object to be heated above the top plate 6, it suffices if the camera 80 can image the range. It is not necessary to image the user who is in front of the cooker 2. According to the above configuration, since the camera 80 images the upper part of the top plate 6 from below the top plate 6 on the front side of the main body 4 toward the back side of the main body 4 through the transmission window 90, the upper part of the top plate 6 is viewed. While taking an image, the user who is in front of the cooking device 2 can be excluded from the imaging range. Therefore, it is possible to suppress the imaging of an extra range while imaging the required range in the cooking cooker 2. Further, since the camera 80 is arranged below the top plate 6, it is possible to prevent the camera 80 from becoming dirty. For example, even if cooking oil or the like is scattered around the stove burner 10a when the object to be heated is heated by the stove burner 10a, the scattered cooking oil adheres to the top plate 6. As a result, the camera 80 arranged below the top plate 6 is prevented from becoming dirty. Further, according to the above configuration, since the camera 80 images the upper part of the top plate 6 from below the top plate 6 on the front side of the main body 4 toward the back side of the main body 4 through the transmission window 90, it is in the height direction. It becomes easy to grasp the distance from the stove burners 10a, 10b, and 10c.

Further, the above-mentioned cooking cooker 2 includes a stove burner 10b arranged next to the stove burner 10a on the front side of the main body 4. The stove burner 10b heats the object to be heated by thermal power above the top plate 6. Further, the camera 80 is arranged below the top plate 6 between the stove burners 10a and 10b. In this cooking cooker 2, when the control unit 110 detects that an object has invaded within a predetermined range above the top plate 6 based on the image captured by the camera 80, the heating power of the stove burners 10a and 10b is applied. Reduce. The thermal power of the stove burners 10a and 10b arranged on the front side (user side) of the main body 4 is reduced.

According to such a configuration, when an extra object (for example, a human body or clothes) invades within a predetermined range above the top plate 6, the thermal power of the stove burners 10a and 10b can be reduced, and safety management is performed. be able to. Further, the thermal power of the two control burners 10a and 10b can be reduced based on the image taken by one camera 80. Therefore, safety management can be performed efficiently.

Further, in the above-mentioned cooking cooker 2, the display unit 84 is arranged below the transmission window 90 formed on the top plate 6. The display unit 84 displays information about the cooker 2. When the display unit 84 is arranged below the transparent window 90, it is expected that the transparent window 90 is kept clean so that the user can easily see the display unit 84. Therefore, when the camera 80 images the upper part of the top plate, the image can be taken through the clean transmission window 90.

Although each embodiment has been described in detail above, these are merely examples and do not limit the scope of claims. The techniques described in the claims include various modifications and modifications of the specific examples illustrated above.

(Second Example)
In the first embodiment described above, the transmission window 90 is formed between the stove burner 10a on the left side and the stove burner 10b on the right side, but the present invention is not limited to this configuration. In the second embodiment, as shown in FIG. 7, the left transparent window 90a is formed at a position corresponding to the left stove burner 10a, and the right transparent window 90b is formed at a position corresponding to the right stove burner 10b. It is formed. The transmission windows 90a and 90b are formed on the top plate 6 on the front side (user side) of the main body 4. The transparent window 90a on the left side is formed on the front side of the stove burner 10a on the left side. The transparent window 90b on the right side is formed on the front side of the stove burner 10b on the right side. Transparent glass is fitted in each of the transmission windows 90a and 90b.

A camera 80a on the left side is arranged below the transmission window 90a on the left side. The camera 80a on the left side images the upper part of the top plate 6 through the transmission window 90a on the left side (see FIG. 2). The camera 80a on the left side can take an image of the upper part of the cooking utensil 2 from below the top plate 6. Further, the camera 80a on the left side captures an image of the upper part of the top plate 6 from the front side to the back side of the main body 4. Further, the camera 80a on the left side takes an image of the upper part of the top plate 6 with the periphery of the stove burner 10a on the left side in the imaging range. The camera 80a on the left side continuously images the upper part of the top plate 6.

Next to the camera 80a on the left side, a liquid crystal display unit 84a on the left side is arranged. The display unit 84a is arranged on the back side of the main body 4 with respect to the camera 80a (see FIG. 2). The display unit 84a is arranged below the left transparent window 90a formed on the top plate 6. The display unit 84a displays information about the cooker 2. For example, the operating state of the stove burner 10a on the left side is displayed on the display unit 84a on the left side.

Further, below the transmission window 90b on the right side, a camera 80b on the right side and a display unit 84b on the right side are arranged. The camera 80b on the right side and the display unit 84b on the right side have the same configurations as the camera 80a on the left side and the display unit 84a on the left side except for the difference between the left and right sides, and thus detailed description thereof will be omitted.

Subsequently, the process executed by the cooking cooker 2 according to the second embodiment will be described. In the second embodiment, the same processing as that executed by the control unit 110 in the first embodiment is executed. However, in the second embodiment, the camera 80a on the left side captures the upper part of the top plate 6 with the periphery of the stove burner 10a on the left side within the imaging range. Further, the camera 80b on the right side images the upper part of the top plate 6 with the periphery of the controller 10b on the right side in the imaging range. Therefore, when the control unit 110 controls the operation of the left stove burner 10a, it controls based on the image captured by the left camera 80a. On the other hand, when the control unit 110 controls the operation of the stove burner 10b on the right side, the control is performed based on the image captured by the camera 80b on the right side.

When the control unit 110 changes the thermal power of the left stove burner 10a, as shown in FIG. 8A, the image of the left stove burner 10a captured by the left camera 80a is used as the reference image 122. The control unit 110 sets a predetermined detection range 124 in the reference image 122 captured by the camera 80a on the left side. Further, as shown in FIG. 8B, the control unit 110 sets a predetermined detection range 134 in the captured image 133 regarding the left stove burner 10a currently being imaged by the left camera 80a. The control unit 110 compares the captured image 133 captured by the camera 80a on the left side with the reference image 122 (see step S13 in FIG. 4). Then, when some object exists around the left stove burner 10a, the control unit 110 reduces the thermal power of the stove burner 10a (see steps S14 and S15 in FIG. 4).

When the control unit 110 changes the thermal power of the stove burner 10b on the right side, the same process as on the left side is executed based on the image of the stove burner 10b on the right side captured by the camera 80b on the right side.

The heating cooker 2 according to the second embodiment has been described above. As is clear from the above description, the cooking cooker 2 according to the second embodiment includes a left camera 80a and a right camera 80b arranged below the top plate 6 on the front side of the main body 4. .. The camera 80a on the left side puts the periphery of the stove burner 10a on the left side within the imaging range, and the top plate 6 is directed from below the top plate 6 on the front side of the main body 4 toward the back side of the main body 4 through the transmission window 90a on the left side. Image above. On the other hand, the camera 80b on the right side puts the periphery of the stove burner 10b on the right side within the imaging range, and heavens from below the top plate 6 on the front side of the main body 4 toward the back side of the main body 4 through the transmission window 90b on the right side. The upper part of the plate 6 is imaged. Further, when the control unit 110 detects that an object has invaded within a predetermined range around the left stove burner 10a based on the image captured by the left camera 80a, the thermal power of the left stove burner 10a is reduced. Let me. On the other hand, when the control unit 110 detects that an object has invaded within a predetermined range around the right stove burner 10b based on the image captured by the right camera 80b, the thermal power of the right stove burner 10b is reduced. Let me.

According to the above configuration, the thermal power of the left stove burner 10a can be reduced based on the image of the left camera 80a, and the thermal power of the right stove burner 10b can be reduced based on the image of the right camera 80b. Can be done. Therefore, safety management can be performed according to the imaging ranges of the left and right cameras 80a and 80b. Safety management can be performed individually for the left and right stove burners 10a and 10b.

In the above embodiment, two transmission windows 90 (a transmission window 90a on the left side and a transmission window 90b on the right side) are formed on the top plate 6. Further, the camera 80a on the left side imaged the upper part of the top plate 6 through the transparent window 90a on the left side, and the camera 80b on the right side imaged the upper part of the top plate 6 through the transparent window 90b on the right side. However, the configuration is not limited to this. In another embodiment, one transmission window 90 is formed on the top plate 6, and the camera 80a on the left side and the camera 80b on the right side may image the upper part of the top plate 6 through one transmission window 90. .. One transmission window 90 extends in the left-right direction of the top plate 6. One transmission window 90 extends from the position on the front side of the stove burner 10a on the left side to the position on the front side of the stove burner 10b on the right side. Further, in the above embodiment, the two display units 84 (the display unit 84a on the left side and the display unit 84b on the right side) are arranged, but the present invention is not limited to this configuration and is located in the central portion in the left-right direction. The configuration may be such that only one display unit 84 is arranged.

(Third Example)
In the second embodiment described above, the thermal powers of the stove burners 10a and 10b on the front side of the main body 4 are reduced, but the present invention is not limited to this configuration. In the third embodiment, the thermal power of the stove burner 10c on the back side of the main body 4 may be reduced. More specifically, when an object enters the predetermined range around the left and right stove burners 10a and 10b on the front side of the main body 4 at the same timing, the control unit 110 causes the front side stove burners 10a and 10b to enter. Not only the firepower but also the firepower of the stove burner 10c on the back side is reduced.

In the third embodiment, the control unit 110 compares the captured image 133 captured by the camera 80a on the left side with the reference image 122, and determines whether or not an object exists around the stove burner 10a on the left side (FIG. FIG. See steps S13 and S14 in step 4). When an object invades within a predetermined range around the left stove burner 10a, the control unit 110 detects that the object has invaded based on the image captured by the camera 80a on the left side. Further, the control unit 110 compares the captured image 133 captured by the camera 80b on the right side with the reference image 122, and determines whether or not an object exists around the stove burner 10b on the right side (step S13 in FIG. 4). , S14). When an object invades within a predetermined range around the stove burner 10b on the right side, the control unit 110 detects that the object has invaded based on the image captured by the camera 80b on the right side.

When the control unit 110 detects the intrusion of an object based on the image captured by the camera 80a on the left side and detects the intrusion of an object based on the image captured by the camera 80b on the right side, the control unit 110 detects the intrusion of the object. Reduces the firepower of the burners 10a, 10b and 10c. If an object invades the left stove burner 10a and an object invades the right stove burner 10b at the same timing, the thermal power of the stove burners 10a and 10b on the front side of the main body 4 and the stove burner 10c on the back side To reduce.

If the detection of an object based on the image captured by the camera 80a on the left side and the detection of an object based on the image captured by the camera 80b on the right side overlap, it can be considered that an extra object (human body or clothing) has invaded over a wide area. it can. Therefore, in this case, the safety can be improved by reducing not only the thermal power of the stove burners 10a and 10b on the front side of the main body 4 but also the thermal power of the stove burners 10c on the back side.

(Fourth Example)
In the above embodiment, the thermal power is reduced when an object invades within a predetermined range, but the configuration is not limited to this configuration. In the fourth embodiment, when any object other than the stove burners 10a, 10b and 10c (for example, oil or foodstuff in a heating object such as a pan or a frying pan) catches fire, all the stove burners 10a, 10b and 10c are used. It may be configured to extinguish a fire.

It is assumed that some object (oil or food material in a heating object such as a pan or a frying pan) is ignited above the top plate 6 of the cooking cooker 2. For example, as shown in FIG. 9, it is assumed that the oil in the pot ignites for some reason during cooking.

In the fourth embodiment, the control unit 110 detects that some object (oil or foodstuff in a heating object such as a pan or a frying pan) has ignited based on the image captured by the camera 80. The control unit 110 detects that an object other than the stove burners 10a, 10b, and 10c has ignited. For example, when the brightness of the captured image 133 (FIG. 9 (b)) captured by the camera 80 after ignition is significantly higher than the brightness of the reference image 122 (FIG. 9 (a)) before ignition, the control unit 110 may use the control unit 110. , Judge that some object has ignited. In another example, the camera 80 has a function of detecting infrared rays, and the control unit 110 detects the temperature in the imaging range based on the image captured by the camera 80. Then, when the detected temperature is extremely high, the control unit 110 determines that some object has ignited. When the cooking cooker 2 includes the camera 80a on the left side and the camera 80b on the right side, the control unit 110 detects ignition based on the image taken by the camera 80a on the left side or the camera 80b on the right side. Based on the image captured by the camera 80, the control unit 110 detects that an object other than the stove burners 10a, 10b, and 10c has ignited outside a predetermined range above the top plate 6.

When the control unit 110 detects that an object has ignited a fire, it extinguishes all the stove burners 10a, 10b, and 10c. For example, the control unit 110 cuts off the gas supply to all the stove burners 10a, 10b, and 10c.

If any object catches fire, it is required to extinguish it for safety. Therefore, when the control unit 110 detects ignition, safety can be ensured by extinguishing all the stove burners 10a, 10b, and 10c.

The technical elements described herein or in the drawings exhibit their technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the techniques illustrated in the present specification or drawings can achieve a plurality of purposes at the same time, and achieving one of the purposes itself has technical usefulness.

2: Heat cooker 4: Main body 6: Top plate 10a: Stove burner 10b: Stove burner 10c: Stove burner 12a: Sensor 12b: Sensor 12c: Sensor 20: Grill storage 22: Grill door 24: Stove operation unit 26: Grill operation Unit 40: Power switch 42a: Heating amount operation unit 42b: Heating amount operation unit 42c: Heating amount operation unit 44: Panel operation unit 46: Display unit 80: Camera 84: Display unit 90: Transmission window 110: Control unit 112: Heating Control unit 114: Instruction transmission unit 120: Memory

Claims (5)

It ’s a cooker,
The main body with the top plate and
A first heating unit that heats the object to be heated by heat above the top plate,
A first imaging unit arranged below the top plate on the front side of the main body,
Equipped with a control unit
A first transparent window is formed on the top plate on the front side of the main body.
The first imaging unit puts the periphery of the first heating unit within the imaging range, and the heavens from below the top plate on the front side of the main body toward the back side of the main body through the first transmission window. Image the top of the board,
When the control unit detects that an object has entered a predetermined range above the top plate based on the image captured by the first imaging unit, the heating power of the first heating unit is reduced. It ’s a cooker ,
It is arranged next to the first heating unit, and further includes a second heating unit that heats the object to be heated by thermal power above the top plate.
The first imaging unit is arranged below the top plate between the first heating unit and the second heating unit.
When the control unit detects that an object has entered the predetermined range above the top plate based on the image captured by the first imaging unit, the first heating unit and the second heating unit A cooker that reduces the heat of the cooker . It ’s a cooker,
The main body with the top plate and
A first heating unit that heats the object to be heated by heat above the top plate,
A first imaging unit arranged below the top plate on the front side of the main body,
Equipped with a control unit
A first transparent window is formed on the top plate on the front side of the main body.
The first imaging unit puts the periphery of the first heating unit within the imaging range, and the heavens from below the top plate on the front side of the main body toward the back side of the main body through the first transmission window. Image the top of the board,
When the control unit detects that an object has entered a predetermined range above the top plate based on the image captured by the first imaging unit, the heating power of the first heating unit is reduced. It ’s a cooker,
A second heating unit, which is arranged next to the first heating unit and heats the object to be heated by heat above the top plate,
A second imaging unit arranged below the top plate on the front side of the main body is further provided.
A second transmission window is further formed on the top plate on the front side of the main body.
The second imaging unit puts the periphery of the second heating unit within the imaging range, and from below the top plate on the front side of the main body toward the back side of the main body through the second transmission window. Image the top of the board,
When the control unit detects that an object has entered a predetermined range around the first heating unit based on the image captured by the first imaging unit, the thermal power of the first heating unit is reduced. When it is detected that an object has invaded within a predetermined range around the second heating unit based on the image captured by the second imaging unit, the heating power of the second heating unit is reduced. .. Further, the first heating unit and the third heating unit arranged on the inner side of the main body from the second heating unit are further provided.
The control unit detects that an object has entered a predetermined range around the first heating unit based on the image captured by the first imaging unit, and the second imaging unit captures the image in an overlapping manner. When it is detected that an object has invaded within a predetermined range around the second heating unit based on the image, the thermal power of the first heating unit, the second heating unit, and the third heating unit is reduced. , The heating cooker according to claim 2. It ’s a cooker,
The main body with the top plate and
A first heating unit that heats the object to be heated by heat above the top plate,
A first imaging unit arranged below the top plate on the front side of the main body,
Equipped with a control unit
A first transparent window is formed on the top plate on the front side of the main body.
The first imaging unit puts the periphery of the first heating unit within the imaging range, and the heavens from below the top plate on the front side of the main body toward the back side of the main body through the first transmission window. Image the top of the board,
When the control unit detects that an object has entered a predetermined range above the top plate based on the image captured by the first imaging unit, the thermal power of the first heating unit is reduced.
When the control unit detects that an object other than the first heating unit has ignited outside the predetermined range above the top plate based on the image captured by the first imaging unit, the first 1 A heating cooker that extinguishes the heating part. The invention according to any one of claims 1 to 4 , which is arranged below the first transmission window formed on the top plate and further includes a display unit for displaying information about the cooking cooker. Cooker.

Images