CN109073231A - Heating device - Google Patents
Heating device Download PDFInfo
- Publication number
- CN109073231A CN109073231A CN201780020664.6A CN201780020664A CN109073231A CN 109073231 A CN109073231 A CN 109073231A CN 201780020664 A CN201780020664 A CN 201780020664A CN 109073231 A CN109073231 A CN 109073231A
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- China
- Prior art keywords
- illumination
- heating
- heating device
- food
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
- F24C7/085—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on baking ovens
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/008—Illumination for oven cavities
Abstract
Heating device has: image pickup part (23), and the heating room (13) of shooting storage food (12) is internal；Illuminance control unit (33), the lighting level for the illumination (25a~25d) illuminated in room (13) will be heated by changing.
Description
Technical field
The present invention relates to for heating the heating device for cooking food etc..
Background technique
In the previous heating device with heating room, in order to confirm the state of the food as heating object
Deng there is the case where being equipped with image pickup part (for example, referring to the patent document 1) shot indoor to heating.This previous
In heating device, image procossing is carried out according to the image shot by image pickup part, identifies and judge the state of the food in the cooking
Instant food burns degree.
In the structure of the previous this heating device with image pickup part, it is indoor the heating surrounded by wall surface is not can avoid
Food and the distance between illumination become close.Therefore, the irradiation light from light source is locally too strong, the food detected by image pickup part
Color be biased to white side than the color of actual food product, or the back side in the slave light source observation for heating indoor food generates
Deeper shadow.When generating such local high illumination and shadow at least one party, it is impossible to which color is burnt in correct detection.
Also, in previous this heating device, food is usually placed on tableware or the cooking in heating interior
Heating operating is carried out on the placers such as paper (cooking sheet).In this case, in order in the picture by food and food
The placers such as the tableware as neighbouring background other than product separate, and carry out Edge Following to determine the region of food.
But when generating local high illumination or shadow due to the influence because of illumination, the shape of food cannot be correctly detected
State and wrong identification occurs, and edge disappears without method from captured image and extracts edge, thus cannot detect food
Region.
In addition, in the case where food is approximate color with surrounding neighbouring background, it is difficult to by background and food separation
And correctly detect food.In addition, being shone in the case where the brightness of food and neighbouring background is all higher and whiting color
When bright illumination is larger, differentiate more difficult.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2001-272045 bulletin
Summary of the invention
The present invention is exactly to complete in view of the above-mentioned problems, a kind of heating device is provided, with image pickup part and photograph
In the heating device in bright portion, it is easy background and heating object to be separated and determined the image of heating object, i.e., easily and correctly
Detection heating object and determine the profile of heating object, to identify the state of the heating objects such as food.
Specifically, the heating device of an example of embodiments of the present invention has: image pickup part, to the indoor progress of heating
Shooting；Illumination portion, to the indoor irradiation light of heating；Illuminance control unit changes the lighting level of illumination portion；And at image
Reason portion determines the image of heating object according to the image by image pickup part shooting.
According to this structure, the multiple images that lighting level is changed by illuminance control unit can be shot.As a result,
Even heating object and its neighbouring background are approximate colors, can also be set as lighting level can be with more grayscale
Differentiate the lighting level of the color difference of the two, shoots heating object.
Also, by comparing the different multiple images of lighting level in image processing part, even if changing lighting level
The position of heating object in image is constant, but the position of at least one party in local high illumination and shadow due to generating in image
Set variation, it is thus possible to detect these variations and be separated.
In this way, the heating device of an example of embodiment according to the present invention, can be changed by illuminance control unit
Lighting level shoots heating object.It is easy to separate background with heating object and determination is added in image processing part as a result,
The image of hot object easily and correctly detects heating object and determines the profile of heating object.Therefore, can correctly detect by
Heat the state of object.
Detailed description of the invention
Fig. 1 is the figure for showing the outline structure of the major part of heating device of embodiments of the present invention 1.
Fig. 2A is the outline structure for showing another light illumination mode of heating device of embodiments of the present invention 1
Figure.
Fig. 2 B is the outline structure for showing the again another light illumination mode of heating device of embodiments of the present invention 1
Figure.
Fig. 3 is the figure for showing the outline structure of the major part of heating device of embodiments of the present invention 2.
Specific embodiment
The heating device of an example of embodiments of the present invention has: heating object is stored in heating room；Image pickup part,
It shoots heating interior；Illumination portion, to the indoor irradiation light of heating；Illuminance control unit changes the photograph of illumination portion
Bright degree；And image processing part, the image of heating object is determined according to the image by image pickup part shooting.
According to this structure, the multiple images that lighting level is changed by illuminance control unit can be shot.As a result,
Even if be approximate color as the food of heating object and its neighbouring background, lighting level can be also set as can with compared with
More grayscale differentiates the lighting level of the color difference of the two and shoots heating object.
Also, by comparing the different multiple images of lighting level in image processing part, even if changing lighting level
The position of heating object in image is constant, but the position of the local high illumination due to generating in image and shadow at least one party become
Change, it is thus possible to detect these variations and separate background with heating object.
That is, according to this structure, the multiple images for changing lighting level by illuminance control unit can be shot.By
This, even if heating object and its neighbouring background are approximate colors, can also be set as lighting level can be with more ash
Rank differentiates the lighting level of the color difference of the two and shoots heating object.Therefore, be easy background in image processing part and
Heating object separates and determines the image of heating object, i.e., easily and correctly detects heating object and determine its profile.
Also, the heating device of an example of embodiments of the present invention also can have the photograph for storing multiple light illumination modes
Bright pattern storage portion.In this case, illumination portion also may be constructed as according to multiple light illumination mode irradiation lights.Also, at this
In the case of kind, the heating device of an example of embodiments of the present invention is also configured to, and illuminance control unit makes illumination portion
Execute at least two light illumination modes in multiple light illumination modes.
According to this structure, the multiple light illumination modes stored in light illumination mode storage unit are able to use, shooting changes
The multiple images of lighting level (being shot with different lighting levels).Therefore, by comparing illumination journey in image processing part
Different multiple images are spent, even if changing lighting level, the position of the heating object in captured image is constant, but due to
The change in location of at least one party of the local high illumination and shadow that generate in image, thus be able to detect these variations and by background
It is separated with heating object.Thereby, it is possible to correctly detect heating object.
Also, the heating device of an example of embodiments of the present invention is also configured to, illuminance control unit according to
Change the lighting level of illumination portion by the brightness of the image of image pickup part shooting.
According to this structure, in the case where heating object and its neighbouring background are the higher approximate colors of brightness, lead to
The illumination for reducing illumination portion is crossed, the lower image section of brightness other than heating object and neighbouring background is made to become low key tone.Separately
On the one hand, the higher color, that is, heating object of brightness and neighbouring background can shoot the color difference of the two with more grayscale.
It is easy background and heating object to be separated and determined the image of heating object in image processing part as a result, i.e., easily and correctly
It detects heating object and determines its profile.
On the contrary, passing through in the case where heating object and its neighbouring background are the lower approximate colors of brightness and increasing illumination
The illumination in portion, making the higher image section jump of the brightness other than heating object and neighbouring background is white.On the other hand, brightness
Lower color, that is, heating object and neighbouring background can shoot the color difference of the two with more grayscale.As a result, with the former
The case where it is the same, be easy to separate background and heating object in image processing part and correctly detect heating object.
Also, the heating device of an example of embodiments of the present invention also can have multiple illumination portions.In this feelings
Under condition, the heating device of an example of embodiments of the present invention is also configured to, and illuminance control unit controls multiple illuminations
The switched on and off of portion changes lighting level.
According to this structure, indoor illumination is heated to change by the variation of the number for the illumination portion being switched on, thus
The different multiple images of illumination can be shot.Even if heating object and neighbouring background are approximate colors as a result, it can will also shine
Bright degree is set as to differentiate the lighting level of the color difference of the two with more grayscale and shooting heating object.Therefore,
It is easy background and heating object separation correctly detecting heating object in image processing part.
Also, the change in location by the illumination portion being switched on, can shoot the different multiple images of lighting level.Cause
This, by comparing the different multiple images of lighting level, even if changing the position of the position of illumination portion and the heating object in image
Constant, but the change in location of at least one party due to the local high illumination and shadow that generate in image is set, back is able to detect
Scape and separated with heating object, heating object can be correctly detected.
Also, the heating device of an example of embodiments of the present invention also can have multiple illumination portions.In this feelings
Under condition, multiple illumination portion configurations are on the wall surface of heating room and top surface at least any one face.Also, it is in this case, more
A illumination portion has at least one combination as follows: the combination is the overlook view shape at heating room viewed from above
Under state, configure in the illumination portion centered on the center for heating room, at the position that image pickup part deviates from each other 30 degree or more
Combination.
According to this structure, in the case where being changed the control of position for the illumination portion being switched on, if used
The combination for deviateing 30 degree or more of illumination portion under overlook view state at heating room viewed from above, then can make in image
The position of at least one party in the local high illumination and shadow of interior generation changes according to the angle that illumination portion is configured.Cause
This, in the comparison of multiple images, the change in location of at least one party in high illumination part and shadow increases.Therefore, it is easier to
It detects these variations and is separated, heating object can be correctly detected.
Also, the heating device of an example of embodiments of the present invention is also configured to, and illumination portion can be with multiple
Luminance is illuminated.In this case, illuminance control unit is configured to multiple luminance of switching illumination portion also to change
Lighting level.
According to this structure, by making a variety of variations of luminance of illumination portion, can make to heat indoor illumination change, because
And the different multiple images of illumination can be shot.Therefore, it even if heating object and neighbouring background are approximate colors, can also incite somebody to action
Lighting level is set as to differentiate the lighting level of the color difference of the two with more grayscale and shooting heating object.Cause
This, is easy background and heating object separation correctly detecting heating object in image processing part.
Also, the heating device of an example of embodiments of the present invention is also configured to, and image pickup part is by heating
The through hole or transparent component being arranged on the wall surface of room and top surface at least any one face shoot heating interior.
According to this structure, image pickup part can configure in the outside of heating room, it is thus possible to prevent from existing by image pickup part
Heat unwanted reflection and the shadow of indoor generation illumination light.In addition, preventing image pickup part indoor as heating object in heating
Heating obstacle, and be easy implement image pickup part temperature countermeasure.Therefore, it can prevent image pickup part due to heating indoor high temperature
Generate failure.
In the following, being described with reference to the example of embodiments of the present invention.
In addition, the present invention is not limited to the structures for the heating device recorded in following embodiment.
(embodiment 1)
Fig. 1 is the figure for showing the outline structure of the major part of heating device of embodiments of the present invention 1.Fig. 2A is
The figure of the outline structure of another light illumination mode of the heating device of embodiments of the present invention 1 is shown.Fig. 2 B is to show this
The figure of the outline structure of the again another light illumination mode of the heating device of the embodiment 1 of invention.
Shown in A and Fig. 2 B as shown in Figure 1, Figure 2, there is the heating device 11 of embodiments of the present invention 1 storage in inside to make
For the heating room 13 of the food 12 of heating object.Heating device 11 is configured to through heater, magnetron or steam generation
Heating source as device (not shown), can heat cooking heating object.
Room 13 is heated by becoming top surface 17, left side wall surface 18, the back side 19, right side wall surface 20, bottom surface 21 and the door of wall surface (not
Diagram) it constitutes.In the present embodiment, heating room 13 is in approximately cuboid shape.Top surface 17, left side wall surface 18, the back side 19 and
Right side wall surface 20 is by materials shapes such as such as enamelled pressed steel (ホ ウ ロ ウ steel plate), stainless steel plate or coated steel sheets (coated steel plate)
At.Heat the size with width 400mm, depth 300mm in the present embodiment of room 13.
Inclined-plane 22 is formed between the top surface 17 and left side wall surface 18 of heating room 13.What inclined-plane 22 was formed as: with
The central portion of the depth direction of heating room 13 between top surface 17 and left side wall surface 18, i.e. with relative to the back side 19 for for example
The position of the nearby side of 150mm is approximate centre, along front and rear part is formed for example, by drawing process in depth direction.
Image pickup part 23 is equipped in the outside (side opposite with heating 13 private side of room) on inclined-plane 22.That is, 23 structure of image pickup part
Become: (heating the normal on the inclined-plane 22 in the outside of room 13 along direction far from the direction inside heating room 13 to than inclined-plane 22
(being oblique upper left side in Fig. 1)) position deviateed is fixed in heating room 13, pass through the shooting of the through hole 24 that be arranged on inclined-plane 22
It heats inside room 13.Image pickup part 23 is configured to: making the camera shooting center position of image pickup part 23 relative to horizontal direction downward
Such as 30 degree, so that 12 main body of food is accommodated within sweep of the eye.The camera shooting center position of image pickup part 23 is relative to level side
To angle, according to the field angle of image pickup part 23, as long as downward with 0~about 50 degree.Also, when so that image pickup part
When the vertical mode of 23 camera shooting center position and inclined-plane 22 sets the angle on inclined-plane 22, it is easy to carry out the fixation of image pickup part 23.
Illumination 25a, 25b, 25c, 25d of multiple illumination portions are for example by LED (Light Emitting Diode: luminous two
Pole pipe) it constitutes.In the present embodiment, four angles with the top surface 17 of heating room 13 are arranged in illumination 25a, 25b, 25c, 25d
Front side and rear side (referring to Fig.1) in the top of corresponding nearby, left and right the side wall surface 18,20 in portion.In the present embodiment, it shines
Bright 25a configuration illuminates 25b configuration near the back side 19 of the rear side of left side wall surface 18, illuminates 25c in the front side of left side wall surface 18
Configuration is near the back side 19 at the rear of right side wall surface 20, and illumination 25d configuration is in the front of right side wall surface 20.Also, illuminate 25a
~25d be respectively structured as from the LED being arranged in the outer surface side of wall surface to heating room 13 in irradiation light.
Also, in the heating device of present embodiment 11, for example, by illuminate 25a, 25d light source center be configured at side
Position in wall surface 18,20, from the 250mm forwards of the back side 19.Also, the light source center for illuminating 25b, 25c is configured at side
Position in wall surface 18,20, from the 50mm forwards of the back side 19.Therefore, in the heating device of present embodiment 11, upper
Under the overlook view state of side observation heating room 13,25a, 25b are illuminated relative to the center of the bottom surface of connection heating room 13 and is taken the photograph
As the straight line in portion 23 be respectively offset from it is 26.5 degree about each.That is, centered on the center for the bottom surface for heating room 13, separating about 53 degree and matching
Set two illuminations 25a, 25b.Equally, centered on the center of bottom surface for heating room 13, separate about 53 degree of configurations illumination 25c,
25d。
The control unit 31 of heating device 11 is such as with miniature calculating CPU, memory and input/output interface
Machine is (not shown) to be constituted.Control unit 31 has image processing part 32, illuminance control unit 33 and light illumination mode storage inside it
Portion's (storage unit) 34.Image processing part 32 is electrically connected with image pickup part 23, carries out shooting obtained heating room according to by image pickup part 23
Image data in 13 determines the processing of the image of food 12.Illuminance control unit 33 is electrically connected with illumination 25a~25d, according to
The data of the light illumination mode stored in light illumination mode storage unit 34, the lighting level of change illumination 25a~25d.
In the following, illustrating its movement and effect to heating device 11 formed as described above.
The food 12 being placed on placer i.e. tableware 35 is put into the heating room 13 of heating device 11 by user
Portion.It is illuminated in heating room 13 using illumination 25a~25d, thus, it is possible to obtain can ensure that the visual observation of image pickup part 23
The illumination of property.In the heating device 11 of present embodiment, as shown in Figure 1, as storing in light illumination mode storage unit 34
First mode, 4 illumination 25a~25d are all switched on.
In the operation process of heating device 11, image pickup part 23 not only shoots in heating room 13 and is shown, also exists
The cooking status of food 12 is identified and judged in heating device 11, at this point, food 12 and tableware 35 be all lighting level compared with
In the case where the approximate color of high whiting, the illumination light irradiated from illumination 25a~25d is reflected by food 12 and tableware 35,
The illumination heated in room 13 increases.Also, about food 12 and each illumination 25a~25d that side wall surface 18,20 is set away from
From usually reaching about 100~500mm or so in this heating device, the distance of light source and food 12 becomes close.Therefore, come
It is too strong from the irradiation light of illumination 25a~25d, it is very big in the brightness for the food 12 that image pickup part 23 detects, result in detection
Light quantity goes beyond the scope (range over) and is identified as the part of white.
But the heating device 11 of present embodiment has the illuminance control unit 33 that can change lighting level, because
And it is as shown in Figure 2 A, as the second mode stored in light illumination mode storage unit 34, behind the only illumination 25a of left front and the right side
The two illuminations of the illumination 25c of side are switched on.In this way, the illumination in heating room 13 reaches substantially half, the photography of image pickup part 23
The overall brightness of image reduces, and can prevent the detection light quantity of high-luminance colour side from going beyond the scope, and food 12 and tableware 35 with
The lower background image portion of outer brightness becomes low key tone.It can be detected simultaneously with more grayscale in image pickup part 23 as a result,
The various approximate colors of the whiting of high-luminance colour side are shot, thus can suitably distinguish grayscale in image processing part 32.
Therefore, it even if food 12 and tableware 35 are all the approximate colors of the higher whiting of brightness, can also shoot point
The image of different colours is not divided into.As a result, in image processing part 32 be easy by the tableware 35 as neighbouring background separation and
It determines the image of food 12, that is, be easy correct detection food 12 and determine its profile.
Only left front illumination 25a and right back illumination 25c the two illumination be switched on when, pass through illumination 25a
The shadow 36a for generating food 12 forms the shadow 36c based on illumination 25c in the opposite side across food 12.
Also, as shown in Figure 2 B, as the third mode stored in light illumination mode storage unit 34, illuminance control unit 33 is only
By the two illumination connections of the illumination 25b of the left back and illumination 25d of right front and change lighting level.In this way, by taking the photograph
The change in location of the local high illumination generated in the image shot as portion 23.Image processing part 32 stores light illumination mode as a result,
The respective image of first mode and second mode and the third mode in portion 34 is compared, and is changed to position according to light illumination mode
Profile and indeclinable profile distinguish, the profile of variation can be judged as to local high illumination portion and separated, energy
Enough correct detection food 12.
At this point, generating the shadow 36b of food 12 by illumination 25b, formed in the opposite side across food 12 based on illumination
The shadow 36d of 25d.Also, shadow 36a when shadow 36b and second mode is the arrangement angles separated according to illumination 25a, 25b
And what the angle determined generated.For example, in the present embodiment, in the above example, being spaced from each other about 53 degree of configurations and shining
Bright 25a, 25b, thus according to the arrangement angles of illumination 25a, 25b, if the configuration of food 12 in the center of heating room 13, separates
About 53 degree of shadow 36a generated when shadow 36b and second mode.Equally, shadow 36d and shadow 36b when second mode
Separate about 53 degree of generations.The shadow 36a that therefore, is generated by the illumination being switched on according to second mode in comparison,
When each photographs for shadow 36b, 36d that 36c and the illumination by being switched on according to the third mode and generate, image pickup part 23
The change in location of the shadow of shooting increases.
In this way, if using leaving each other 30 degree or more under the overlook view state at heating room 13 viewed from above
The combination of illumination portion (illumination 25a~25d) can then make the local high illumination generated in image and at least one party in shadow
Position changes according to the arrangement angles as illumination 25a~25d of illumination portion.Therefore, in the comparison of multiple images, Gao Zhao
The change in location of degree part and at least one party in shadow increase, these change in location are more readily detected in image processing part 32
And separated, food 12 can be correctly detected.
On the other hand, in the case where food 12 and tableware 35 are all the lower blacking up approximate colors of brightness, such as scheming
Only there are two the feelings that illumination is switched on like that for the second mode and the third mode of light illumination mode storage unit 34 shown in 2A and Fig. 2 B
Under condition, the illumination light irradiated from illumination portion is less in the reflection of food 12 and tableware 35, and the illumination heated in room 13 reduces.
But the heating device 11 of present embodiment has the illuminance control unit 33 that can change lighting level.?
In the heating device 11 of present embodiment, as the first mode of light illumination mode storage unit 34 shown in FIG. 1, in illumination 25a
When this 4 illuminations of~25d are switched on, the illumination heated in room 13 increases, and can prevent the detection light quantity of low-light level color side
It is insufficient.On the other hand, the higher background image portion jump of brightness other than food 12 and tableware 35 is white.Thereby, it is possible to
Blacking up each approximate color of low-light level color side is detected and shot with more grayscale in image pickup part 23.Therefore, can
Grayscale is suitably distinguished in image processing part 32.
In this way, by changing lighting level according to the brightness of captured image in illuminance control unit 33, in food 12
And its nearby in the case that background is the higher approximate color of brightness, by reducing the illumination of illumination 25a~25d, can with compared with
The color difference of more grayscale shooting food 12 and neighbouring background.It is easy in image processing part 32 by background and conduct as a result,
The food 12 of heating object separates and determines the image of food 12, i.e., easily and correctly detects food 12 and determine its profile.
On the contrary, passing through in the case where food 12 and its nearby background are the lower approximate colors of brightness and increasing illumination 25a
The illumination of~25d can shoot the color difference of food 12 and neighbouring background with more grayscale.As a result, with the former the case where
Equally, it is easy to separate background with food 12 and correctly detect food 12 in image processing part 32.
Also, the switched on and off of illumination 25a~25d as multiple illumination portions, illumination portion (illumination are controlled in this way
25a~25d) be switched on number variation.Thereby, it is possible to change lighting level, the illumination change in room 13 is heated.Therefore, energy
Enough different multiple images of shooting illumination.Therefore, even if food 12 and neighbouring background are approximate colors, journey can will also be illuminated
Degree is set to differentiate the lighting level of the color difference of the two using more grayscale and shoot the food as heating object
12.Therefore, it is easy to separate background with food 12 and correctly detect food 12 in image processing part 32.
Also, by the change in location for making the illumination portion (illumination 25a~25d) being switched on, lighting level can be shot not
Same multiple images.Therefore, by comparing these multiple images, even if changing the position of illumination portion and the food in multiple images
12 position is constant, but the change in location of at least one party in local high illumination and shadow due to generating in multiple images, because
This is able to detect in image processing part 32 these change in location and is separated, and can correctly detect food 12.
In addition, being not limited to the above-mentioned illumination by controlling as multiple illumination portions about the method for changing lighting level
The method of switching on and off for 25a~25d and the number variation that is switched on illumination portion (illumination 25a~25d).For example, can also
To be, change lighting level by increasing or decreasing the luminance of illumination of illumination 25a~25d as multiple illumination portions.
In this way, in the case where can determine the profile of food 12, such as identification food is easier in image processing part 32
The cooking status of product 12 roasts color.That is, the cooking paper of white is spread on pallet made of iron by taking the baking of cake as an example,
Cake blank (not shown) is arranged thereon and is put into heating room 13.At this point, food 12 will be used as in image processing part 32
The profile of cake distinguish with the cooking paper as background and correctly detect.
Also, the temperature heated in room 13 is set as such as 170 DEG C to start to be baked.The cake blank of whiting is by about
With barbecue color at 10 minutes or so, but cooking paper is still white.At this point, correctly identifying in image processing part 32 as food
The profile of the cake blank of product 12, it is thus possible to detect to cook the white portion of paper, prevent from being such as judged as not formed barbecue
The wrong identification of color.
Also, work as the case where food 12 as heating object are shot by image pickup part 23 in such heating is cooked
Under, it heats and reaches a high temperature (such as 170 DEG C above-mentioned) in room 13, greatly exceed the common heat resisting temperature (example of image pickup part 23
Such as 70 DEG C).But as described above in the heating device of present embodiment 11, on the inclined-plane for the wall surface for forming heating room 13
22 are equipped with the through hole 24 of image pickup part 23.Also, it is configured in the heating device of present embodiment 11, image pickup part 23 is matched
It sets in the outside (side opposite with the heating private side of room 13) on inclined-plane 22, is shot in heating room 13 by through hole 24.
According to this structure, be easy implement image pickup part 23 temperature countermeasure, prevent image pickup part 23 generated because of high temperature therefore
Barrier.Also, the configuration of image pickup part 23 is in the outside of heating room 13, it is thus possible to prevent from generating in heating room 13 by image pickup part 23
At least one party in the unwanted reflection of illumination light and shadow.In addition, can also prevent image pickup part 23 heating room 13 at
For the obstacle of food heating.
In addition, being illustrated oblique between top surface 17 and left side wall surface 18 in the heating device 11 of present embodiment
The outside in face 22 is equipped with the structure of image pickup part 23, but is also configured to not form inclined-plane 22, and is equipped with and passes through in left side wall surface 18
Through-hole.Also, the heating device 11 of present embodiment is also configured to, and between top surface 17 and right side wall surface 20 or is pushed up
It is formed with inclined-plane between face 17 and the back side 19, is equipped with through hole on the inclined-plane, and be equipped with image pickup part 23.
If in addition, the heating device 11 of present embodiment does not become the component of barrier in the outside of top surface 17
Deng, then it can also be in top surface 17 equipped with through hole, image pickup part 23 is disposed through the outside in hole.Alternatively, the heating of present embodiment
Cooking device 11 can also be equipped with the transparent components such as transparent glass in the door section of the front side of heating room 13, and be configured with image pickup part
23, so that shooting the food 12 as heating object via transparent component.According to this structure, can also obtain with it is above-mentioned
The identical functions and effects of functions and effects.
Also, such structure is illustrated in the heating device of present embodiment 11: illumination portion is in left side wall surface 18
It is configured with total 2 i.e. 1 and 1, rear of front, on right side, wall surface 20 is configured with total 2 i.e. 1 and 1, rear of front,
It may also be structure of the illumination portion configuration in top surface 17, can also select optimal number and position suitably to configure illumination
Portion.
(embodiment 2)
In the following, illustrating the heating device 11 of embodiments of the present invention 2.It is cooked in the heating of embodiments of the present invention 2
It adjusts in device 11, distinguishing biggish with the heating device 11 of embodiment 1 is to become lighting level in illuminance control unit 33
The structure of change.
In the explanation of the heating device 11 of following embodiments of the present invention 2, to have with embodiment 1 plus
The part of the identical structure of constituent element or function in hot cooking device marks identical label, omits it herein specifically
It is bright, and the explanation of application implementation mode 1.
Fig. 3 is the figure for showing the outline structure of the major part of heating device of embodiments of the present invention 2.Such as Fig. 3
It is shown, in the heating device 11 of embodiments of the present invention 2, with the illuminance control unit 41 that is electrically connected of illumination 25a~25d
Having pulse width modulation controlled portion inside it, (Pulse Width Modulation Control Unit is (in the following, sometimes referred to as
For PWM control unit)) 42.Pulse width modulation controlled portion 42 is made by carrying out pulsed drive to the LED for constituting illumination 25a~25d
The pulse width variations flowed through in electric current, the luminance for making brightness illuminate 25a~25d become multiple setting values.
In said structure, when cooking status in the photographs by image pickup part 23 to identify food 12, such as Fig. 3 institute
Show, 4 illumination 25a~25d are all switched on.
In the approximate color that the food 12 and tableware 35 being put into heating room 13 by user are all the higher whiting of brightness
In the case of, the illumination light heated in room 13 is reflected by food 12 and tableware 35, and illumination increases.In addition, in heating room 13, food
12 illuminate being closer for 25a~25d with each, thus generate irradiation light and concentrate and be detected as the portion of white in image pickup part 23
Point.
However, the heating device 11 of present embodiment has the illuminance control unit 41 for changing lighting level, thus press
The light illumination mode for impinging upon the storage of light illumination mode storage unit 34 changes pulsewidth, so that the luminance of each illumination 25a~25d reaches regulation
Setting value.For example, the heating device 11 of present embodiment changes pulsewidth by illuminance control unit 41, so that reducing each
Illuminate the luminance of 25a~25d.In this way, the illumination in heating room 13 reduces, brightness on the whole reduces, and can prevent high brightness
The detection light quantity of color side goes beyond the scope.
On the other hand, the lower background image portion of brightness in addition to food 12 and tableware 35 becomes low key tone.As a result,
Each approximate color of the whiting of high-luminance colour side, thus energy can be detected and shot with more grayscale in image pickup part 23
It is enough suitably to distinguish grayscale in image processing part 32.Therefore, in the heating device of present embodiment 11, even if food 12
When with tableware 35 being approximate color, the image for dividing into different colours respectively can be also shot.As a result, in image processing part 32
In be easy that the tableware 35 as background near food 12 separates to food 12 and determined the image of food 12, that is, be easy correctly
It detects food 12 and determines its profile in ground.
Also, the luminance for making the luminance variations of each illumination 25a~25d multiple and different in this way, can make to heat
Illumination change in room 13.Thereby, it is possible to shoot the different multiple images of illumination.Therefore, even if food 12 and neighbouring background are
When approximate color, lighting level can be also set as differentiating the lighting level of the color difference of the two with more grayscale
And shoot food 12.Therefore, it is easy to separate background with food 12 in image processing part 32, correctly detects food 12.
Also, in image processing part 32, according to the multiple light illumination modes stored in light illumination mode storage unit 34, to making to shine
The multiple images of the luminance variations of bright 25a~25d are compared.It can to the profile that position changes according to light illumination mode and not
The profile of variation distinguishes, and the profile of change in location is judged as local high illumination portion and is separated, can correctly be examined
Survey food 12.
In addition, as the structure for the luminance for changing illumination 25a~25d, making in the heating device 11 of present embodiment
It is illustrated with pulse width modulation controlled portion 42, but heating device 11 is also configured to not change pulsewidth, and changes flow direction
The size of the current value of LED itself.
In addition, in the present invention, can also store in light illumination mode storage unit 34 and for example be held by illumination 25a~25d
The switch mode of capable multiple luminance, the data as light illumination mode.Also, it is also possible to according in light illumination mode storage unit
The data of the multiple light illumination modes stored in 34, switch multiple luminance, from there through illuminance control unit 33,41 in illumination portion
Change lighting level.
Industrial availability
The present invention provides a kind of heating device, easily and correctly detects heating object and determines its profile, can be correct
The state of ground detection heating object.Therefore, it can be widely applied for the heating device etc. that the heating cooking is carried out to food etc..
Label declaration
11 heating devices；12 food (heating object)；13 heating rooms；17 top surfaces；18 left side wall surfaces (wall surface)；19 back sides
(wall surface)；20 right side wall surfaces (wall surface)；23 image pickup parts；24 through holes；25a, 25b, 25c, 25d illuminate (illumination portion)；32 images
Processing unit；33,41 illuminance control unit；34 light illumination mode storage units；35 food (neighbouring background)；42 pulse width modulation controlled portions
(PWM control unit).
Claims (7)
1. a kind of heating device, comprising:
Room is heated, heating object is stored；
Image pickup part shoots the heating interior；
Illumination portion, to the indoor irradiation light of the heating；
Illuminance control unit changes the lighting level of the illumination portion；And
Image processing part, according to the image for determining the heating object by the image that the image pickup part is shot.
2. heating device according to claim 1, wherein
The heating device also has the light illumination mode storage unit for storing multiple light illumination modes,
The illumination portion is configured to irradiate the light according to the multiple light illumination mode,
The illuminance control unit is configured to that the illumination portion is made to execute at least two illumination moulds in the multiple light illumination mode
Formula.
3. heating device according to claim 1 or 2, wherein
The illuminance control unit is configured to change the illumination portion according to the brightness of the described image shot by the image pickup part
The lighting level.
4. heating device according to any one of claims 1 to 3, wherein
The heating device has multiple illumination portions,
The illuminance control unit is configured to control the switched on and off of the multiple illumination portion and changes the lighting level.
5. heating device according to claim 4, wherein
On the face of wall surface and at least any one party in top surface that the multiple illumination portion configured in the heating room,
Also, the multiple illumination portion has at least one combination as follows: the combination is viewed from above described
Heat room when overlook view state under, configure by it is described heating room center centered on, it is mutually inclined across the image pickup part
The combination of the illumination portion at position from 30 degree or more.
6. heating device described according to claim 1~any one of 5, wherein
The illumination portion has multiple luminance,
The illuminance control unit is configured to the luminance by switching the illumination portion to change the lighting level.
7. heating device described according to claim 1~any one of 6, wherein
The image pickup part is configured on the face via at least any one party in the wall surface and top surface that the heating room is arranged in
Through hole or transparent component shoot the heating interior.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-065325 | 2016-03-29 | ||
| JP2016065325 | 2016-03-29 | ||
| PCT/JP2017/012234 WO2017170318A1 (en) | 2016-03-29 | 2017-03-27 | Cooking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109073231A true CN109073231A (en) | 2018-12-21 |
Family
ID=59965488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780020664.6A Pending CN109073231A (en) | 2016-03-29 | 2017-03-27 | Heating device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3438544A4 (en) |
| JP (1) | JPWO2017170318A1 (en) |
| CN (1) | CN109073231A (en) |
| WO (1) | WO2017170318A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110431353A (en) * | 2017-03-23 | 2019-11-08 | 松下知识产权经营株式会社 | Heating device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7190632B2 (en) * | 2017-06-07 | 2022-12-16 | パナソニックＩｐマネジメント株式会社 | Cooking device and method of controlling the cooking device |
| WO2019169613A1 (en) * | 2018-03-08 | 2019-09-12 | Midea Group Co., Ltd. | Smart rice cookers capable of mixed grain cooking and abnormal conditions detection |
| WO2019198621A1 (en) * | 2018-04-09 | 2019-10-17 | パナソニックＩｐマネジメント株式会社 | Heating cooker |
| WO2020120028A1 (en) * | 2018-12-13 | 2020-06-18 | Arcelik Anonim Sirketi | A cooking device comprising an imaging system |
| JP7316949B2 (en) * | 2020-01-17 | 2023-07-28 | リンナイ株式会社 | cooking system |
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| JP2001272045A (en) | 2000-03-27 | 2001-10-05 | Sanyo Electric Co Ltd | Oven cooker |
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- 2017-03-27 EP EP17774855.5A patent/EP3438544A4/en not_active Withdrawn
- 2017-03-27 WO PCT/JP2017/012234 patent/WO2017170318A1/en active Application Filing
- 2017-03-27 CN CN201780020664.6A patent/CN109073231A/en active Pending
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| CN102812298A (en) * | 2010-03-17 | 2012-12-05 | 松下电器产业株式会社 | Cooking device |
| WO2014086487A1 (en) * | 2012-12-04 | 2014-06-12 | Ingo Stork Genannt Wersborg | Heat treatment device with monitoring system |
| EP2966360A1 (en) * | 2013-03-07 | 2016-01-13 | Panasonic Intellectual Property Management Co., Ltd. | Heating cooking device |
| WO2015185608A1 (en) * | 2014-06-05 | 2015-12-10 | BSH Hausgeräte GmbH | Cooking device with light pattern projector and camera |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3438544A1 (en) | 2019-02-06 |
| WO2017170318A1 (en) | 2017-10-05 |
| EP3438544A4 (en) | 2019-04-17 |
| JPWO2017170318A1 (en) | 2019-02-14 |
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