EP3836746B1 - Délégation de commande dans un processus de cuisson automatique en boucle - Google Patents

Délégation de commande dans un processus de cuisson automatique en boucle Download PDF

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Publication number
EP3836746B1
EP3836746B1 EP19215902.8A EP19215902A EP3836746B1 EP 3836746 B1 EP3836746 B1 EP 3836746B1 EP 19215902 A EP19215902 A EP 19215902A EP 3836746 B1 EP3836746 B1 EP 3836746B1
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EP
European Patent Office
Prior art keywords
cooktop
cookware
control
cooking
app
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EP19215902.8A
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German (de)
English (en)
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EP3836746A1 (fr
Inventor
Peter Favrholdt
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Ztove Aps
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Ztove Aps
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H05B1/0261—For cooking of food
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/06—Cook-top or cookware capable of communicating with each other
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the present invention relates to cooking by an induction cooktop with improved control, smart temperature regulation, and safety. Specifically, the invention is directed to using cookware with integrated sensors (e.g., measuring the cooking temperature), induction cooktops having advanced controls such as integrated digital modules and remote control, and external devices/apps for smart and safe cooking.
  • temperature control is achieved by employing a temperature sensor specially implemented inside the cookware, e.g., in the bottom layer of the pan or pot.
  • the cookware control electronics read an instant temperature value from the sensor and sends it to the induction cooktop or an external smart device and application (e.g. in a smartphone) controlling operation of the cooktop. Therefore, the induction cooktop is controlled by an algorithm determining how much power to supply to the heating coil to achieve the desired temperature in the cookware.
  • Induction cooktops usually have several heating zones and a control module with manual setting of heating levels in the zones. Induction cooktops comprise also safety means in the cooking process. Some advanced induction cooktops are arranged easy to switch on or off automatically, some others feature built-in timers, built-in temperature sensors, and even remote control from simple smartphone apps.
  • the complexity of smart cooking may exceed the convenience and reduce safety.
  • the controlling smartphone can discharge or the controlling application can disconnect from the cooktop in the middle of the cooking process.
  • a cookware item providing its temperature indications to the cooktop can occasionally be displaced to another heating zone or its battery can discharge.
  • An operator may change in the middle of cooking when another cook comes to the kitchen with its own smart device/app to supervise further the cooking process. In such and similar complex situations an interruption of the cooking process or even burning the food or catching fire is possible.
  • the US patent/application US20170299195A1 discloses a cooktop fire prevention module with remote control cooking features.
  • a cooking appliance having a cooktop that is regulated by a fire prevention module is provided.
  • the fire prevention module includes a communication module that enables communication between the cooktop appliance and a remote device, such as a smartphone or tablet computer. Using this communication link, the fire prevention module can be used to expand the ability of a user to monitor and/or control the operation of the cooktop appliance from a remote location.
  • a user may monitor the temperature of a cooking utensil and initiate a particular cooking profile, or be notified when an unsafe cooking condition might be present and that the cooktop unit has been automatically deactivated to remedy the situation.
  • This is a simple extension to monitor and manage the cooktop operation remotely, e.g. when the operator is in another room.
  • the possibility of failure is not mitigated, e.g., if the external device stops to communicate with the cooktop.
  • Another patent application US20170122569A1 discloses a cooktop appliance control system and a method for operating a cooktop appliance is provided.
  • the method includes determining a temperature of a cooking utensil positioned on a heating element of the cooktop appliance, as well as determining a temperature of a food in the utensil positioned on the heating element of the cooktop appliance.
  • the method also includes calculating a temperature differential between the temperatures of the food in the cooking utensil and of the cooking utensil itself.
  • the method includes controlling a heating temperature of the heating element to reduce the temperature differential when the temperature differential is greater than a predetermined threshold to, e.g., reduce the risk of burning a portion of the food in the utensil.
  • a predetermined threshold e.g., reduce the risk of burning a portion of the food in the utensil.
  • One more patent application DE102017220958A1 / ES201631543A discloses a household appliance system with at least one domestic appliance (12), which has at least one internal communication unit (14), and at least one control unit (18) characterized in that it also comprises at least one external unit of communication (16), which is provided in at least one operating state for communicating with the internal communication unit (14), and in that the control unit (18) is provided to prevent control of the household appliance (12) by means of the external communication unit (16) depending on at least the relative position and/or at least the distance between the internal communication unit (14) and the external communication unit (16).
  • This invention monitors and prevents the operation from the remote controlling device/app the device/app it moves away too far from the cooktop. There was disclosed nothing about the support of automatic cooking by using a temperature control loop and more advanced functions.
  • EP3489583A1 / DE102017220815B4 disclosing a method for controlling a cooking appliance with an external control device.
  • this external control device gives control commands to the cooking appliance control.
  • the external controller is classified by the cooking appliance controller either as an automatic controller or as a manual controller, with its control commands being implemented by the cooking equipment controller after classification. During or after an operation of the cooking appliance, it is checked continuously or at intervals whether the classification still applies.
  • This patent application discloses only changing control by the external device modes - from the manual (by an operator) to automatic (by an app) and vice versa. In the case, if control is performed by the control module from cookware item, only the automatic control is applicable and no manual control is available then.
  • the reviewed prior art sources do not disclose the flexible management of multiple intelligent devices in complex smart cooking systems (comprising at least a cooktop, an external device/app, a cookware item).
  • External devices /apps can disappear from the network or be shut down, or some new external devices appear in the wireless network (for example, one user/app started cooking process with his smartphone, then leaves the kitchen and, therefore, needs transfer the cooking process to another user and his smartphone/app).
  • Cookware items can occasionally be displaced from one heating area to another one (or even to another cooktop) in the middle of the cooking process, or go to power saving mode where only thermal sensor data can be transmitted but no active control performed.
  • Most conventional induction cooktops have no digital wireless control or have only minimal modules arranged to receive external commands from external devices/apps.
  • This invention is directed to employ induction cooktops for smart cooking and safety throughout the cooking process until the food prepared and cooktop switched-off.
  • the invention discloses a method and system to control the cooking process precisely and safely, by delegating controls between or among intelligent devices, such as external devices/apps, digital control modules in the cooktop, cooktop heating zones, and smart cookware items.
  • Smart cookware items have their compact digital controls limited by data input, display, and power supply capabilities.
  • Smart external devices/apps e.g., smartphones, tablets, or standalone smart displays
  • Smart external devices/apps are flexible by software, compatible between cookware items and cooktop controls, allow to input and display versatile data, cook by sophisticated recipes, use cooking knowledge from Internet sources, however, they are limited due to interrupted controls and lack of "fail-safety".
  • the method of control delegation orchestrates the plurality of intelligent devices into the automated cooking process or processes, to work together in a controllable manner and safely. At one moment, one device has central control rights that at any time can be delegated to other devices to continue the cooking process. Otherwise, the method allows the cooking system to shut down the cooktop or its heating area automatically if no such devices were discovered or control conditions insufficient.
  • the system comprises several intelligent devices interacting by their functions throughout the cooking process.
  • Each device (cooktop, cookware item, and external device/app) has its control capabilities with certain limitations, altogether they complement each other for an automated control loop cooking process.
  • the device having a central control role of the automated loop cooking process can delegate its control functions to other devices in the control loop.
  • the digital module of the cooktop control provides an integrated fail-safe module which can monitor external devices and accept commands from the controlling devices, also it can control the cooking process by itself, and eventually switch-off the cooktop if the cooking process finished or safety issues were detected.
  • the digital module is arranged into a conventional cooktop allowing the cooktop to be controlled by external means, e. g., by smart cookware items or external devices/apps (e.g., smartphones or smart displays).
  • This description discloses details of the control delegation method in an automated control loop cooking process, a cooking system employing a said method, and a digital control module 19 implemented into a conventional induction cooktop 1 thus allowing such a modified cooktop to use safely in said the system and with said method.
  • the digital control module in a cooktop comprises a digital control module 19 arranged to take part in an automatic control loop cooking process.
  • Module 19 is embedded in between the native User Interface Panel (UIP)/Manual control module 18 of the induction cooktop 1 and the power electronics (POWER) board or Induction heating coil controller 16 which controls the power supply to induction coils 15 for heating the cookware 3.
  • UIP User Interface Panel
  • POWER power electronics
  • the digital control module 19 passes through or intercepts and modifies certain signals of the digital and analog communication between the UI panel 18 and the POWER board 16. As a part of the present invention, module 19 provides the following features:
  • Module 19 comprises an interface block 20 with programmable logics, digital processor 21, and wireless communication 22 block supporting one or more communication standards, e. g., Wi-Fi, Bluetooth, Infrared, etc.
  • the module 19, once implemented into the cooktop 1, is accessible remotely via the wireless network, e.g., responds with Web interface for setting further control configurations.
  • the method describes central control delegation in the control loop from an external control device/app 4 to the induction cooktop 1, cookware 3, or another external device/app 4.
  • the cooking system is considered to have sufficient digital control means to control the automated loop cooking process and to take over the central control function when the controlling device (e.g. 4) leaves the loop 6.
  • Such substitute controlling devices can be cooktop 1 with the digital control module 19, smart cookware item 3 having integrated sensor 11 with control electronics 12 and digital processor 14, and other external devices/apps 4 in the wireless network.
  • control loops 6, 7 on different heating areas/zones 2 of the cooktop 1, with several cookware items 3 and with more than one external device/apps 4.
  • the remote or external devices 4 can be personal smart devices such as smartphones, tablets, or smart local terminals with wireless connection for input/output (touchscreen), Internet access and located in the kitchen nearby the cooktop 1 for operating it.
  • the control module 19 of the cooktop 1 and control modules 12 of cookware items 3 in real practice lack features of extensive data input and output. Therefore, the initial data input and setup of a more sophisticated cooking process is convenient via the external devices/apps 4. Further, the initialized setup can be changed to be done automatically in a closed control loop by the external device/app 4 which controls the cookware items 3 and cooktop heating zones 2 accordingly to the cooking process steps, temperature settings, and provides indications to the operator/cook, etc.
  • the cooking process control may be useful and safer to delegate from the external/device/app 4 to the cooktop 1 or/and the cookware item 3 or another external device/app (for example, to another person), or another cooktop (for example, between two cooktops in a shared kitchen).
  • the smartphone 4 was shut down, disconnected, or the operator has temporarily left the kitchen together with his/her smartphone 4.
  • the delegation of central control is arranged for other devices being able to control the cooking process. According to the present invention, the delegation is done by several steps as per example:
  • the automated loop control modes can be mixed on a single cooktop for several cookware items as in FIG. 1 .
  • One cookware item can cook the food autonomously in local-mode 7, while another cookware is in App mode 6 with an external device/app 4, while third one is in App mode 6 with another external device/app 4, while the forth cookware item 3 can be in Local mode 7 but only sending the temperature data to the cooktop 1 and cooktop digital module 19 fully estimates control means and controls the cooking process.
  • control delegation is for the cooking temperature controlling process.
  • the cookware 3 communicates with the external device/app 4, e.g., using Bluetooth Low Energy (BLE).
  • BLE Bluetooth Low Energy
  • the application 4 controls the cooktop 1 and the power delivered from the cooktop heating coil 15 to the cookware item 3.
  • the temperature can be set to within ⁇ 1°C precision.
  • the digital control module is embedded in the cooktop.
  • the app connects to the cookware.
  • the app connects to the cooktop.
  • the app controls the heat and guides the user to cook more delicious food.
  • the app controls the cooktop and heating of the cookware.
  • the app now knows the exact temperature. Our sensors, radio module and electronics are embedded in the cookware.
  • the external device/app 4 is connected remotely to both the cookware item 3 and the cooktop 1.
  • the automated control loop works repeatedly by these steps:
  • the cooktop 1 is connected by wireless connection directly to the cookware 3, and the following steps are performed:
  • the cooking system with control delegation operates by employing the method of control delegation described above and, therefore, comprises at least 2 control nodes (cooktop digital controller 19, cookware item controller 12 and external device/app 4) which can interact mutually to take over automated control of the cooking temperature in a flexible and safe way along the entire cooking process until the food is prepared and the cooktop 1 is switched-off and a certain indication signal is provided (sound, message, light, etc.).
  • cooktop digital controller 19 and cookware item 3 can be different due to taking over the automated loop control.
  • the cookware item 3 can have a simplified controller 12 which only responds to the request for the temperature indication but is not able to take over control of the cooking process.
  • the cooktop controller 19 can also be a simple integrated controller that accepts only remote commands for changing the power supply to induction coils 15. In the case, if only the external device/app 4 can control the cooking process, then a delegation of the control in the loop 6 is not possible, it is possible only to delegate the control to another external device/app 4. Therefore, at least one more suitable control node is required to be in the system - either in the cookware item 3 or the cooktop 1, or both.
  • Smart cookware items 3 having advanced control features and modules 12 can control the cooking process automatically and provide additional flexibility. For example, if the cookware item 3 with food inside has delegated control process from the external app 4, and started the automated temperature control loop, and afterward cookware item 3 was displaced by the operator/cook onto another cooktop 1 then the cookware item 3 can automatically initiate and continue the predefined cooking process also on the another cooktop 1.
  • delegation of control also describes the decentralization of role-based control systems.
  • control delegation in the automated loop cooking process concept described by this invention is considered as wide as possible practically, e.g. with multiple cooktops, heating zones, cookware items, automated loop cooking processes, external controlling devices/apps, cooks, etc.

Claims (14)

  1. Procédé de commande d'un processus de cuisson par une boucle de commande automatique (6, 7, 8) agencée pour commander la température de cuisson dans un ustensile de cuisine (3) doté d'au moins un capteur thermique (11) et d'une communication sans fil (13), l'ustensile de cuisine (3) étant placé sur une plaque de cuisson (1) dotée d'au moins une communication sans fil (22) et d'un chauffage par induction télécommandé (5), le procédé comprenant au moins les étapes de commande consistant à
    - lire des valeurs au moins desdits capteurs de cuisson (11) ;
    - transférer les valeurs de capteurs obtenues à un dispositif/une application de commande (4) ;
    - estimer la puissance de chauffage en fonction d'une température prédéfinie pendant un intervalle de temps suivant ;
    - transférer la puissance de chauffage estimée au moins à la plaque de cuisson (1) ;
    - l'application de la puissance de chauffage estimée au moins dans la plaque de cuisson (1) pendant l'intervalle de temps suivant,
    dans lequel l'étape d'estimation de la puissance de chauffage est réalisable par plus d'un dispositif (4, 1, 3) dans la boucle de commande automatique (6, 7, 8),
    dans lequel au moins une partie de la commande automatique du processus de cuisson est déléguée à partir du dispositif/de l'application de commande (4) à au moins un autre dispositif (4, 1, 3) au moins dans la boucle de commande automatique (6, 7, 8).
  2. Procédé selon la revendication 1, caractérisé en ce que l'ustensile de cuisine (3) comprend en outre un module de commande numérique (12) pour exécuter ladite étape de lecture de valeurs au moins à partir desdits capteurs d'ustensile de cuisine (11).
  3. Procédé selon la revendication 2, caractérisé en ce que l'ustensile de cuisine (3) comprend en outre son module de commande numérique (12) pour exécuter au moins une partie de la commande automatique déléguée (7, 8), telle que ladite étape d'estimation de puissance de chauffage pendant un intervalle de temps suivant.
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que la plaque de cuisson (1) comprend en outre un module de commande numérique (19) pour exécuter ladite étape d'application de la puissance de chauffage estimée au moins dans la plaque de cuisson (1) pendant l'intervalle de temps suivant.
  5. Procédé selon la revendication 4, caractérisé en ce que la plaque de cuisson (1) comprend en outre son module de commande numérique (19) pour exécuter au moins une partie de la commande automatique déléguée (7, 8), telle que ladite étape d'estimation de puissance de chauffage pendant un intervalle de temps suivant.
  6. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que le dispositif de commande (4) est un mobile multifonction, une tablette ou tout dispositif de type terminal intelligent ayant une connexion sans fil et exécutant l'application de commande.
  7. Procédé selon la revendication 6, caractérisé en ce que ladite étape de délégation d'au moins une partie de la commande automatique du processus de cuisson à partir du dispositif/de l'application de commande (4) vers au moins un autre dispositif (4, 1, 3) au moins dans la boucle de commande automatique (6, 7, 8) est effectuée sur ledit mobile multifonction (4) étant éteint, déconnecté ou le mobile multifonction (4) quittant temporairement la cuisine.
  8. Système de cuisson avec boucle de commande de température de cuisson automatique (6, 7, 8) comprenant au moins :
    - un ustensile de cuisine (3) avec un capteur thermique (11) et un module de commande numérique (12) agencé au moins pour lire la température de cuisson et transférer ses valeurs à des dispositifs externes (4, 1),
    - un dispositif/une application de commande (4) externe agencé(e) pour demander et recevoir les valeurs de température de cuisson, pour estimer la puissance de chauffage en fonction d'une température prédéfinie pour l'intervalle de temps suivant, et pour transférer les valeurs de puissance de chauffage à des dispositifs externes (1).
    - une plaque de cuisson par induction (1) avec au moins une zone de chauffage (2) et un module de commande numérique (19) agencée pour recevoir les valeurs de puissance de chauffage et fournir un chauffage par induction à l'ustensile de cuisine (3),
    dans lequel ledit système de cuisson est conçu pour réaliser le procédé selon l'une quelconque des revendications 1 à 7.
  9. Système de cuisson selon la revendication 8, caractérisé en ce que la température de cuisson est commandée sur plus d'une zone de chauffage (2) de la plaque de cuisson par induction (1).
  10. Système de cuisson selon la revendication 8 ou 9, caractérisé en ce que la température de cuisson est commandée à partir de plus d'un dispositif/d'une application de commande (4) externe à la plaque de cuisson par induction (1).
  11. Système de cuisson selon l'une quelconque des revendications 8 à 10, caractérisé en ce que ledit dispositif/ladite application de commande (4) externe est un mobile multifonction et ledit système de cuisson est conçu pour effectuer ladite délégation d'au moins une partie de la commande automatique (6, 7, 8) à partir du mobile multifonction (4) sur ledit mobile multifonction (4) étant éteint, déconnecté ou le mobile multifonction (4) quittant temporairement la cuisine.
  12. Système de cuisson selon l'une quelconque des revendications 8 à 11, dans lequel le module de commande numérique (19) comprend au moins :
    - un bloc d'interface de puissance et de signal (20),
    - un processeur numérique programmable (21),
    - un bloc de communication sans fil (22), moyennant quoi
    - le bloc d'interface de puissance et de signal (20) comprend des logiques programmables agencées pour une interconnexion compatible et transparente entre un panneau d'interface utilisateur (UIP) (18) et un bloc de commande de puissance de chauffage (16) de la plaque de cuisson par induction (1), et
    - le module de commande numérique (19) fournit et régule la puissance d'induction dans les zones de chauffage (2) de la plaque de chauffage (1) en dessous des valeurs réglées sur le panneau d'interface utilisateur (UIP) (18).
  13. Système de cuisson selon l'une quelconque des revendications 8 à 12, moyennant quoi ledit module de commande numérique (19) est mis en oeuvre dans ladite plaque de cuisson par induction (1) entre le panneau d'interface utilisateur (UIP) (18) et le bloc de commande de puissance de chauffage (16) de la plaque de cuisson par induction (1).
  14. Système de cuisson selon l'une quelconque des revendications 8 à 13, moyennant quoi le module de commande numérique (19) fait partie d'une boucle de commande automatique (6, 7, 8) agencée pour commander une température de cuisson dans un ustensile de cuisine (3), et dans lequel le module de commande numérique (19) est conçu pour recevoir la délégation d'au moins une partie de ladite commande automatique (6, 7, 8) à partir d'un mobile multifonction (4) sur ledit mobile multifonction (4) étant éteint, déconnecté ou le mobile multifonction (4) quittant temporairement la cuisine.
EP19215902.8A 2019-12-13 2019-12-13 Délégation de commande dans un processus de cuisson automatique en boucle Active EP3836746B1 (fr)

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EP3836746B1 true EP3836746B1 (fr) 2024-05-01

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Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101656115B1 (ko) 2009-01-06 2016-09-08 액세스 비지니스 그룹 인터내셔날 엘엘씨 스마트 조리 기구
DE102013213546B4 (de) 2013-07-10 2022-01-20 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Betreiben eines Dunstabzugs und Dunstabzug
EP3042542B1 (fr) * 2013-09-03 2017-06-14 Arçelik Anonim Sirketi Dispositif de commande de batterie de cuisine individuelle destiné à être utilisé avec un appareil de cuisson à chauffage par induction, et système de cuisson sans fil le comprenant
US20150334785A1 (en) * 2014-05-15 2015-11-19 Cooktek Induction Systems, Llc Menu-based cooking appliance
US10591167B2 (en) 2015-10-28 2020-03-17 Haier Us Appliance Solutions, Inc. Cooktop appliance control system
US20170299195A1 (en) 2016-04-19 2017-10-19 General Electric Company Cooktop Fire Prevention Module with Remote Control Cooking Features
ES2670992B1 (es) 2016-12-02 2019-03-15 Bsh Electrodomesticos Espana Sa Sistema de aparato doméstico.
DE102017220814A1 (de) 2017-11-22 2019-05-23 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Steuerung eines Kochgeräts mit einem externen Steuergerät, Kochgerät und System
DE102017220815B4 (de) 2017-11-22 2019-06-19 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Steuerung eines Kochgeräts mit einem externen Steuergerät, Kochgerät und System
EP3821769A1 (fr) 2019-11-18 2021-05-19 Ztove ApS Ustensiles de cuisson intelligents à utiliser sur des tables de cuisson à induction

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