EP3882520A1 - Procédé de commande d'un appareil de cuisson, appareil de cuisson, support de produit à cuire et système doté d'un appareil de cuisson et d'un support de produit à cuire - Google Patents

Procédé de commande d'un appareil de cuisson, appareil de cuisson, support de produit à cuire et système doté d'un appareil de cuisson et d'un support de produit à cuire Download PDF

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Publication number
EP3882520A1
EP3882520A1 EP21160481.4A EP21160481A EP3882520A1 EP 3882520 A1 EP3882520 A1 EP 3882520A1 EP 21160481 A EP21160481 A EP 21160481A EP 3882520 A1 EP3882520 A1 EP 3882520A1
Authority
EP
European Patent Office
Prior art keywords
mark
food
cooking
camera
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.)
Withdrawn
Application number
EP21160481.4A
Other languages
German (de)
English (en)
Inventor
Niklas Birwe
Katja Holtkötter
Bastian Michl
Michael Pauer
Francisco Villoria Domingues
Thorsten Nagel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3882520A1 publication Critical patent/EP3882520A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a method for controlling a cooking device, a cooking device, a food support and a system comprising a cooking device with a food support.
  • the DE 10 2013 110 642 A1 such a method, as well as a cooking device and a system for carrying out such a method.
  • the known cooking appliance has a housing with a cooking space in which several insertion levels are formed for food carriers.
  • the known cooking device also has a camera designed as a plenoptic camera, TOF camera or stereo camera.
  • the camera of the cooking appliance is designed in such a way that it can record images that contain distance information for each pixel.
  • the camera known therefrom is thus designed as a so-called 3D camera.
  • the invention thus poses the problem of realizing an occupancy detection of an insertion level with a food carrier using simpler means.
  • the advantage that can be achieved with the invention consists in particular in the possibility of using 2D cameras that are simple in terms of design and circuitry and therefore inexpensive.
  • An advantageous further development of the method according to the invention provides that the 2D camera is switched on automatically to capture the image of the label of the food carrier as a function of the process of inserting the food carrier into the cooking chamber, preferably depending on the transfer of a cooking chamber door of the cooking appliance into an open position of the cooking chamber door .
  • the 2D camera is switched on automatically to capture the image of the label of the food carrier as a function of the process of inserting the food carrier into the cooking chamber, preferably depending on the transfer of a cooking chamber door of the cooking appliance into an open position of the cooking chamber door .
  • the 2D camera is switched on automatically to capture the image of the label of the food carrier as a function of the process of inserting the food carrier into the cooking chamber, preferably depending on the transfer of a cooking chamber door of the cooking appliance into an open position of the cooking chamber door .
  • an advantageous development of the cooking device provides that the 2D camera is arranged on the housing in such a way that the label of the food carrier can be detected by means of the 2D camera when the food carrier is pushed into the cooking space.
  • the type, materials, dimensions, housing and arrangement of the 2D camera can be freely selected within a wide range of suitable limits. It is advantageously provided that the 2D camera is arranged in the area of a cooking space ceiling, in particular in the center of the cooking space ceiling, on or in the housing. Furthermore, this makes it possible in a simple manner, in addition to the insertion level detection, to simultaneously carry out a cooking product detection and / or cooking status detection with the 2D camera.
  • a further advantageous development of the food carrier according to the invention provides that the mark is designed as an edge of the food carrier, preferably as an edge of the food carrier running transversely to an insertion direction of the food carrier into the cooking space.
  • the mark arranged on the food carrier is implemented in a particularly simple manner, since there is no need to additionally attach a mark to the food carrier.
  • the mark is therefore designed as an inherent part of the food carrier. The costs for storage, transport and production of the food carrier according to the invention are correspondingly reduced.
  • the preferred embodiment of this development also has the further advantage that the edge of the food carrier running transversely to the direction of insertion of the food carrier, for example, does not impair or aggravate the method according to the invention from the cooking space and / or from the grids arranged on the cooking space for grids that can be inserted into the cooking space
  • the food carrier is covered.
  • the mark is designed as a proof of origin, preferably as a proof of origin arranged on an edge of the food carrier running transversely to an insertion direction of the food carrier into the cooking space.
  • the proof of origin can be designed, for example, as a proof of origin entered in a register of a state.
  • the mark serves, on the one hand, to identify, according to the invention, the insertion level of a food rack inserted into the cooking space of the cooking appliance according to the invention and, on the other hand, as a proof of origin for the food rack according to the invention.
  • a cooking device 2 designed as a baking oven is shown.
  • the oven 2 has a control unit (not shown), a housing 4 and a cooking chamber 6 designed as a baking muffle in the housing 4.
  • the baking muffle 6 has three insertion levels 8 here.
  • the insertion levels 8 are defined by holders (not shown in more detail) which are formed or arranged on the housing 4 in a manner known to those skilled in the art. For example, these can be beads formed in the side housing walls or grids or pull-outs held on the side housing walls.
  • the oven 2 has a 2D camera 10, which is in signal transmission connection with the control unit and is installed outside the baking muffle 6 in the housing 4 designed as a double-walled housing.
  • the 2D camera 10 is placed in the center of a baking muffle ceiling 4.1 of the baking muffle 6.
  • the housing 4 has an opening 4.2 for an objective 10.1 of the 2D camera 10.
  • the lens 10.1 of the 2D camera 10 has an image angle ⁇ of 70 °, the image angle in Fig. 1 is symbolically represented by a double arrow 10.2 and two dashed lines. In this way, given the size of the baking muffle 6, it is ensured that all three insertion levels 8 can be captured by means of the 2D camera 10 to an extent sufficient for the method according to the invention.
  • a cooking space lighting 12 designed as a baking muffle light is built onto the baking muffle ceiling 4.1 of the housing 4.
  • the baking muffle light 12 is designed here at the same time as a camera light 12. Accordingly, the 2D camera 10 in the present exemplary embodiment can be constructed more simply.
  • Fig. 1 all three insertion levels 8, namely 8a, 8b and 8c, are each occupied by a cooking product carrier 14 for a cooking product 16, by way of example.
  • a cooking product carrier 14 for a cooking product 16
  • the food carriers 14 can be grids, dripping pans, baking trays or the like.
  • the image angle ⁇ and thus the selected detection area of the 2D camera 10 can be selected to be large enough to substantially completely detect the food carrier inserted thereon in each insertion level. “Essentially” completely recorded because the edge region of the food carrier is also in engagement with the holder (not shown) and is thus slightly covered. A great advantage of the invention, however, is that such a large angle of view is not required. Large angles of view lead to strong distortion and also require special and therefore expensive lenses
  • an image of a mark with at least one predetermined dimension can be automatically captured by a cooking product carrier 14 with the mark, which is at least partially inserted into one of the insertion levels 8a to 8c in the baking muffle 6; this image of the mark is automatically in the control unit can be evaluated, the shelf level 8a, 8b or 8c occupied by the product carrier 14 with the mark can be automatically determined depending on the dimension of the mark on the image and an action of the cooking device 2 can be automatically carried out depending on the occupied shelf level 8a, 8b or 8c.
  • the 2D camera 10 is arranged on the housing 4 in the manner explained above in such a way that the 2D camera 10 detects the mark of the food carrier 14 when the food carrier 14 is pushed into the baking muffle 6.
  • the mark of the food carrier 14 is designed as an edge 14.1 of the food carrier 14, namely as an edge 14.1 of the food carrier 14 running transversely to an insertion direction 18 of the food carrier 14 into the baking muffle 6, with a width of the Edge 14.1 is designed as the at least one predetermined dimension 14.2 of the mark 14.1.
  • the edge 14.1 of the food support 14 used in the oven 2 each have the same width 14.2.
  • the individual food support 14, as already explained above, can furthermore be configured individually.
  • the automatic insertion level detection takes place as follows:
  • the food support 14 is pushed into the top shelf 8a, for example; please refer Figs. 1 and 2 .
  • the 2D camera 10 automatically captures the image as a function of the process of inserting the food carrier 14 into the cooking chamber 6 designed as a baking muffle, namely depending on the transfer of a cooking chamber door (not shown) of the cooking appliance 2 into its open position the mark 14.1 of the food carrier 14 is switched on.
  • the 2D camera 10 captures the edge 14.1 of the food carrier 14.
  • the 2D camera 10 records an image of the mark 14.1 of the food carrier 14, namely of the edge 14.1 of the food carrier 14, the data of which is transmitted to the control unit for further processing .
  • Fig. 2 an image recorded with the 2D camera 10 is shown as an example.
  • the edge area 14.1 of the food support 14 is recognized and automatically evaluated by means of an evaluation algorithm in the control unit.
  • the insertion level 8a is automatically determined as occupied by the food carrier 14 and an action of the cooking device 2 is automatically carried out depending on the occupied insertion level 8a.
  • This automatic insertion level detection is possible because the previously determined dimension 14.2 of the mark 14.1 of the food support 14, in the present exemplary embodiment a width 14.2 of the edge 14.1 of the food support 14 running along the insertion direction 18, is stored in the control unit for the above evaluation. A focal length of the lens 10.1 of the 2D camera 10 is also stored in the control unit for this evaluation. From the width 14.2 of the edge 14.1 of the food carrier 14 in the image recorded by the 2D camera 10, the aforementioned focal length and the actual width 14.2 of the edge 14.1 of the food carrier 14, the distance between the 2D camera 10 and the food carrier 14 and thus whose insertion level 8a can be determined automatically.
  • This determination can then be used, for example, when setting preparation parameters in automatic cooking programs, that is to say for an action of the cooking appliance 2.
  • the automatic program is automatically adapted and executed as a function of the aforementioned insertion level detection, namely that the food carrier 14 has been inserted into the insertion level 8a.
  • the lighting can be adapted to the determined insertion level in order to better highlight the food for further detection with the camera.
  • camera parameters for example a focus setting in cameras with variable focus or variable exposure time, are adapted in order to optimize the image.
  • the distance / plane information can also be used to determine the actual size or volume of the item to be cooked, because the specific distance to the camera is also known with the plane and the size can thus be determined by triangulation.
  • a multiple occupancy of the baking muffle 6 with food carriers 14, as in FIG Fig. 1 shown as an example is conceivable.
  • a user of the cooking appliance 2 only has to insert the food carrier 14 with the food 16 arranged on it first into the lowest shelf level 8c, then into the middle shelf 8b and finally into the top shelf 8a to ensure that the mark 14.1, namely the Edge 14.1 of the respective food support 14 running transversely to the insertion direction 18 is not covered in an undesired manner by another food support 14.
  • a corresponding message could be output to a user of the oven 2 by means of an output unit arranged on the oven 2.
  • the 2D camera is arranged on or in the housing in such a way that the above-mentioned concealment of the mark of the food carrier inserted into the baking muffle when the image is recorded by means of the 2D camera, even if the baking muffle is occupied multiple times Food carriers, is safely prevented.
  • transparent food carriers for example glass baking trays, would also be conceivable.
  • the great advantage of the invention is that inexpensive 2D cameras can be used. Another advantage is that, in contrast to solutions known from the prior art, no cooking chamber edges / walls have to be shown. As a result, the focus of the image continues to be on the food to be cooked, without the camera having to be arranged to be movable, for example.
  • the invention is not limited to the present embodiment.
  • the teaching according to the invention can also be used advantageously in other cooking appliances.
  • another structural feature of the food carrier is used as a mark with at least one predetermined dimension.
  • the mark is designed as a proof of origin, preferably as a proof of origin arranged on an edge of the food carrier running transversely to an insertion direction of the food carrier into the cooking space.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Electric Ovens (AREA)
EP21160481.4A 2020-03-19 2021-03-03 Procédé de commande d'un appareil de cuisson, appareil de cuisson, support de produit à cuire et système doté d'un appareil de cuisson et d'un support de produit à cuire Withdrawn EP3882520A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020107568.5A DE102020107568B4 (de) 2020-03-19 2020-03-19 Verfahren zur Ansteuerung eines Gargeräts und Gargerät

Publications (1)

Publication Number Publication Date
EP3882520A1 true EP3882520A1 (fr) 2021-09-22

Family

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Family Applications (1)

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EP21160481.4A Withdrawn EP3882520A1 (fr) 2020-03-19 2021-03-03 Procédé de commande d'un appareil de cuisson, appareil de cuisson, support de produit à cuire et système doté d'un appareil de cuisson et d'un support de produit à cuire

Country Status (2)

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EP (1) EP3882520A1 (fr)
DE (1) DE102020107568B4 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013110642A1 (de) 2013-09-26 2015-03-26 Rational Aktiengesellschaft Gargerät mit Kamera und Verfahren zur Einschuberkennung
WO2015185608A1 (fr) * 2014-06-05 2015-12-10 BSH Hausgeräte GmbH Appareil de cuisson avec projecteur de motif lumineux et caméra
DE102014210673A1 (de) * 2014-06-05 2015-12-17 BSH Hausgeräte GmbH Bestimmen einer Einschubebene eines Gargutträgers
EP2993415A2 (fr) * 2014-09-03 2016-03-09 BSH Hausgeräte GmbH Support de produit de cuisson dote d'un moyen d'identification
EP3067828A1 (fr) * 2015-03-13 2016-09-14 Rational Aktiengesellschaft Procede de reconnaissance du sens de deplacement d'un objet dans la zone d'une chambre de cuisson
WO2016179424A1 (fr) * 2015-05-05 2016-11-10 June Life, Inc. Système de préparation d'aliments connecté et son procédé d'utilisation
DE102016119230A1 (de) * 2016-10-10 2018-04-12 Miele & Cie. Kg Gargerät und System mit einem Gargerät und einem Gargutträger

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017121401A1 (de) 2017-09-14 2019-03-14 Rational Aktiengesellschaft Belade- und Entladestation sowie auch Belade- und/oder Entladeverfahren eines Gargeräts zur Bestimmung der Beschickung des Garraums des Gargeräts

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013110642A1 (de) 2013-09-26 2015-03-26 Rational Aktiengesellschaft Gargerät mit Kamera und Verfahren zur Einschuberkennung
WO2015185608A1 (fr) * 2014-06-05 2015-12-10 BSH Hausgeräte GmbH Appareil de cuisson avec projecteur de motif lumineux et caméra
DE102014210673A1 (de) * 2014-06-05 2015-12-17 BSH Hausgeräte GmbH Bestimmen einer Einschubebene eines Gargutträgers
EP2993415A2 (fr) * 2014-09-03 2016-03-09 BSH Hausgeräte GmbH Support de produit de cuisson dote d'un moyen d'identification
EP3067828A1 (fr) * 2015-03-13 2016-09-14 Rational Aktiengesellschaft Procede de reconnaissance du sens de deplacement d'un objet dans la zone d'une chambre de cuisson
WO2016179424A1 (fr) * 2015-05-05 2016-11-10 June Life, Inc. Système de préparation d'aliments connecté et son procédé d'utilisation
DE102016119230A1 (de) * 2016-10-10 2018-04-12 Miele & Cie. Kg Gargerät und System mit einem Gargerät und einem Gargutträger

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DE102020107568B4 (de) 2022-02-03
DE102020107568A1 (de) 2021-09-23

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