BE1031251B1 - Cooking utensils for placing on an induction hob of a cooking system for cooking food, cooking system for cooking food and method for operating a cooking system - Google Patents

Abstract

The invention relates to a cooking utensil (110) for placing on an induction hob (120) of a cooking system (100) for cooking food. The cooking utensil (110) comprises at least one temperature sensor (112, 114) which is arranged in a base of the cooking utensil (110) which can be placed on the induction hob (120). The at least one temperature sensor (112, 114) is designed to provide at least one sensor signal (S) during a cooking operation in a state of the cooking utensil (110) placed on the induction hob (120), which sensor signal represents a detected temperature in the base of the cooking utensil (110). The cooking utensil (110) further comprises a processing device (116) which is connected to the at least one temperature sensor (112, 114) in a signal-transmitting manner. The processing device (116) is designed to evaluate the at least one sensor signal (S), to generate a temperature signal (T) and to securely transmit the temperature signal (T) wirelessly to the induction hob (120).

Description

Description

Cooking utensils for placing on an induction hob of a cooking system for cooking

Food to be cooked, cooking system for cooking food and method for operating a cooking system

The invention relates to a cooking utensil for placing on an induction hob of a

Cooking system for cooking food, a cooking system for cooking food and a method for operating such a cooking system.

Traditionally, temperature monitoring during cooking of food under

When using an induction hob, a temperature sensor must be installed under a glass plate of the induction hob to prevent the food from overheating.

DE 10 2016 108 680 A1 relates to a cooking system with at least one first cooking point and at least one cooking utensil, wherein the first cooking point and the cooking utensil are designed to be able to communicate between them by means of structure-borne sound signals.

DE 10 2020 109 480 A1 concerns an inductive kitchen system with an inductive

Hob with at least one cooking area with at least one first induction element and with at least one kitchen utensil with at least one electrical energy storage device, which is designed to electrically supply at least one electronic element of the kitchen utensil. The cooking area comprises at least one second induction element, the kitchen utensil comprises at least one induction element, the inductive hob is designed to operate the first induction element of the cooking area in such a way that the

Cooking area can be heated, and the inductive hob is designed to operate the second induction element of the cooking area such that the electrical energy storage device of the cooking area on the cooking area can be inductively charged by means of its induction element.

DE 10 2020 109 483 A1 relates to an inductive kitchen system with a kitchen appliance with at least one induction element and with at least one kitchen utensil with at least one electrical energy storage device, which is designed to electrically supply at least one electronic element of the kitchen utensil. The kitchen utensil comprises at least one induction element and the kitchen appliance is designed to

Induction element to operate in such a way that the electrical energy storage of the

Kitchenware containing an induction element can be inductively charged by means of its induction element.

DE 10 2020 109 484 A1 concerns an inductive kitchen system with an inductive

Hob with a support surface which is designed to receive at least one kitchen utensil freely positionable from above, with a plurality of first

Induction elements, which are arranged below the installation surface and are each designed to heat a kitchen utensil located on the installation surface in a freely positionable manner, and with a plurality of second induction elements, which are arranged in a predetermined manner below the installation surface and are each designed to detect the presence of a

kitchenware on the installation surface at least substantially directly above it, and with at least the kitchenware with at least one electrical

Energy storage device, which is designed to store at least one electronic element of the

The kitchenware comprises at least one

Induction element and the inductive hob is designed to operate at least one of its second induction elements in such a way that the electrical energy storage device of the kitchen utensils located on the installation surface can be inductively charged by means of its induction element ı5.

DE 10 2021 108 578 A1 concerns a kitchen utensil for placing on a

Induction hob, comprising an inner shell and a heating element separated from the inner shell by a

Spaced outer shell, wherein the inner shell and the outer shell have corresponding mechanical connecting means for mechanical

Connection of the inner shell with the outer shell in a mechanical connection position of the kitchen utensil and the kitchen utensil is designed in such a way that the

Inner bowl of kitchen utensil placed on the induction hob using a

Induction coil of the induction hob can be heated, whereby the inner shell and the

Outer shell each comprise at least one electrical component, wherein the inner shell

And the outer shell has corresponding electrical connection means for at least partial wireless or wired electrical connection of the electrical components of the inner shell and the outer shell in an electrical

Connecting position of the kitchen utensil.

The invention has the task of providing an improved cooking utensil for placing on a

Induction hob of a cooking system for cooking food, an improved cooking system for cooking food and an improved method for operating a cooking system. According to the invention, this object is achieved by a cooking utensil for placing on an induction hob of a cooking system for cooking food, by a cooking system for cooking food and by a method for operating a cooking system with the

Features of the main claims. Advantageous embodiments and further developments of the invention emerge from the following subclaims.

The advantages achievable with the invention include, in addition to minimizing the inertia in temperature measurement, a direct measurement of the temperature in the soil of the

Cooking utensils or the pot bottom temperature or pan bottom temperature, i.e. the

Measuring the highest temperature in the system. This can ensure the operational reliability of a

Cooking system with cooking utensils and induction hob can be increased by measuring the temperature of the cooking utensil directly in the bottom of the same in order to reduce the inertia of the

Temperature measurement should be reduced or switched off, especially in the case of a so-called remote operation of the cooking system, for example in the case of a

Temperature measurement beneath a glass plate of an induction hob, for example via NTC, can be conventionally provided.

A cooking utensil is used for placing on an induction hob of a cooking system for

Cooking of food is presented, whereby the cooking utensil has the following features: at least one temperature sensor which is located in a

bottom of the cooking utensil, wherein the at least one temperature sensor ı5 is designed to measure the temperature of the cooking utensil in a cooking operation in a

Condition of the cooking utensil to provide at least one sensor signal that detects

Temperature in the bottom of the cooking utensil; and a processing device which is connected to the at least one temperature sensor in a signal-transmitting manner, wherein the processing device is designed to evaluate the at least one sensor signal in order to generate a temperature signal, and wherein the processing device is designed to securely transmit the temperature signal wirelessly to the induction hob.

The cooking utensil can be a pot, a pan or similar for

Picking up food to be cooked. In the cooking mode with the cooking utensil placed on the induction hob, the at least one temperature sensor and additionally or alternatively the processing device can be induction-controlled by the

Induction hob can be supplied with electrical energy. Additionally or alternatively, the cooking utensil can have an electrical energy storage device for supplying the at least one temperature sensor and additionally or alternatively the processing device. The at least one temperature sensor can be integrated into the base of the cooking utensil. The processing device can be integrated in or on a side wall or one or more handles of the cooking utensil. The processing device can be designed to transmit the temperature signal wirelessly, in particular by radio, via Bluetooth or a similar transmission standard, to the induction hob.

According to one embodiment, the at least one temperature sensor can be designed to be diagnostically capable. In this case, the processing device can be designed to

Diagnosis of at least one temperature sensor. Furthermore, the

Processing device may be designed to determine the temperature signal depending on a

result of the diagnosis. This offers the advantage that faulty

Temperature measurements or many states of the at least one temperature sensor can be reliably detected. This means that the temperature can be reliably detected, i.e. in other words, error states in the temperature detection can be reliably detected.

The temperature signal can indicate an error state of at least one 11 temperature sensor if the result of the diagnosis indicates an error in at least one temperature sensor. This offers the advantage that a possibly faulty temperature measurement can be reliably communicated to the induction hob.

According to one embodiment, the cooking utensil can have a first temperature sensor and a second temperature sensor, which are arranged in the bottom of the cooking utensil. Here, the first temperature sensor can be designed to provide a first sensor signal, and the second temperature sensor can be designed to provide a second

This offers the advantage that a redundant

Temperature detection can be enabled to ensure safety and reliability of the

to increase temperature measurement.

The processing device can be designed to evaluate the first sensor signal and the second sensor signal in order to calculate the temperature signal using the first sensor signal and additionally or alternatively using the second

This offers the advantage that, depending on requirements, at least one temperature value of the bottom of the cooking dish can be provided.

The processing device can also be designed to compare the first sensor signal and the second sensor signal with each other. The processing device can be designed to generate the temperature signal depending on the result of the comparison. This offers the advantage that a

Plausibility of the sensor signals and thus the temperature measurement can be checked.

Furthermore, the temperature signal can indicate an error condition of the at least one

temperature sensor if the result of the comparison represents a difference between the temperatures represented by the sensor signals that exceeds a predefined threshold. This offers the advantage that an erroneous

Temperature measurement can be reliably detected and reported to the induction hob.

According to one embodiment, the at least one temperature sensor may be a

Thermocouple or resistance thermometer. This offers the advantage that the temperature can be measured safely and precisely using readily available components.

According to one embodiment, the at least one temperature sensor can be designed to provide the at least one sensor signal cyclically and repeatedly. In this case, the processing device can be designed to evaluate the at least one sensor signal cyclically 190 times in order to generate the temperature signal cyclically and repeatedly. In this case, the processing device can be designed to transmit the temperature signal cyclically and repeatedly in a secure wireless manner to the induction hob. A cycle time for the cyclically repeated execution of the actions can be 1 second, for example.

This offers the advantage that reliable and close temperature monitoring can be achieved, whereby it is particularly possible to react quickly to overheating of the food being cooked.

A cooking system for cooking food is also presented, wherein the cooking system has the following features: at least one example of an embodiment of a cooking utensil mentioned herein; and the induction hob, wherein the induction hob has an interface module, a

Control device and an electrical coil, wherein the interface module is designed to receive and evaluate the temperature signal from the cooking utensil to generate an evaluated temperature signal, wherein the

Control device is designed to control the electrical coil using the evaluated temperature signal.

Such a cooking system offers the advantage that all of the previously mentioned advantages can be optimally implemented. The electrical coil can be designed to generate a magnetic field when the power is activated, which acts on the cooking utensil when it is placed on the induction hob. The control device can also be referred to as an induction generator or generator controller. The

The control device can be designed to control the electrical coil by activating and

To control or activate the deactivation of a supply of electrical current.

According to one embodiment, the control device can be designed to

To deactivate the current supply to the electrical coil when the evaluated

Temperature signal indicates that the temperature in the base of the cooking utensil is above a predefined limit and additionally or alternatively there is an error state of the at least one temperature sensor or the secure wireless signal transmission between the cooking utensil and the induction hob. This offers the advantage that safe cooking can be ensured, whereby in particular reliable protection against overheating of the food being cooked can be offered.

A method for operating an embodiment of a herein mentioned

Cooking systems are presented, whereby the process comprises the following steps:

Evaluating the at least one sensor signal to generate the temperature signal;

Transmission of the temperature signal securely wirelessly to the induction hob;

Receiving the temperature signal from the cooking vessel;

Evaluating the received temperature signal to generate the evaluated temperature signal; and

Controlling the electrical coil using the evaluated temperature signal. ı5 By carrying out the method, a safe operation of an embodiment of a cooking system mentioned herein, and thus a safe cooking of food, can be achieved, in particular also in so-called remote operation.

An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows

Figure 1 is a schematic representation of a cooking system according to a

embodiment; and

Figure 2 is a flow chart of an embodiment of a method for

Operating a cooking system.

Before an embodiment of the invention is described in more detail below, the background and principles are first briefly explained.

It is assumed that the standard IEC 60335-2-6, related to safety of electrical

Appliances for household and similar purposes, is updated. This will

have an impact on future hobs and cookware.

Requirements for a temperature limit for cookware in remote operation, for example assistance or automatic mode, are being tightened. In the current

Version of the standard requires that when a maximum

If the temperature of the food changes (+270K), the hob is switched off to avoid the risk of overheating (risk of fire, spontaneous combustion of oil). According to the current version of the standard, temperature detection with a

Temperature sensor in the cooktop, whereby the generator controller

temperature and switches off the induction coil if the temperature is too high, whereby the operating module, for example via an on/off switch, ensures a safe

Switching off is guaranteed. While the current version of the standard assumes a relatively large amount of food to be cooked (e.g. 3 liters of oil), in the future remote operation could guarantee compliance with the maximum temperature of 19 even for smaller quantities (a few milliliters).

To monitor the pot temperature, for example, in current hobs a temperature sensor (e.g. NTC) is installed below the glass plate, which measures the temperature.

However, due to its design, the sensor measures the temperature of the glass plate. For large

This is not a problem with large quantities, the food (e.g. 3 liters of oil) heats up slowly and the glass plate has almost the same temperature as the pot or the food. However, with small quantities the situation is completely different. Especially with induction cookers the cooking utensils (pot, pan) heat up very quickly. With small quantities the

The temperature of the glass plate or the temperature sensor can only follow this rapid increase with a delay. This can result in the sensor detecting the switch-off temperature too late and therefore the food being cooked

Temperatures above the switch-off temperature can be reached. Another point is that the sensors built into the hob are usually placed in a few places. This means that the cooking utensils may not be placed optimally in relation to the temperature sensor and the temperature measurement may be distorted here too.

It is therefore proposed here to measure the pot temperature directly in the pot or cooking utensil and to securely transmit the data to a monitoring unit for temperature evaluation.

Figure 1 shows a schematic representation of a cooking system 100 according to a

Example. The cooking system 100 is designed to cook food or to prepare a

Cooking operation for cooking food. The cooking system 100 comprises at least one

Cooking utensils 110 and an induction hob 120. At least one cooking utensil 110 can be placed on the induction hob 120.

The cooking utensil 110 can also be referred to as cookware. The cooking utensil 110 is, for example, a pot, a pan or the like. The

Cooking utensil 110 is shaped to accommodate the food to be cooked. In the illustration in Figure 1, only one cooking utensil 110 is shown, which is placed on the induction hob 120. The cooking utensil 110 comprises at least one temperature sensor 112, 114 and a processing device 116. The at least one temperature sensor 112, 114 is connected to the processing device 116 in a signal-transmitting manner, for example by means of an electrical line, via a cable-based connection or via a

radio connection or the like.

The at least one temperature sensor 112, 114 is arranged in a base of the cooking utensil 110 that can be placed on the induction hob 120. The at least one

Temperature sensor 112, 114 is designed to measure in the cooking mode in a

Induction hob 120, the cooking utensil 110 is placed away at least one

Sensor signal S representing a detected temperature in the bottom of the cooking utensil 110. The processing device 116 is designed to provide the at least one

Sensor signal S to generate a temperature signal T. The

Processing device 116 is arranged, for example, in or on a side wall or one or more handles of the cooking utensil 110. The processing device 116 is also designed to securely transmit the temperature signal T wirelessly to the induction hob 120.

For example, the at least one temperature sensor 112, 114 comprises a thermocouple or a resistance thermometer. According to one embodiment, the at least one temperature sensor 112, 114 is designed to measure the at least one sensor signal S

Provided cyclically and repeatedly. In this case, the processing device 116 is designed to evaluate the at least one sensor signal S cyclically and repeatedly in order to generate the temperature signal T cyclically and repeatedly. Furthermore, the processing device 116 is designed to transmit the temperature signal T cyclically and repeatedly in a secure wireless manner to the induction hob 120.

According to one embodiment, the at least one temperature sensor 112, 114 is designed to be diagnostically capable. In this case, the processing device 116 is designed to

Diagnosis of the at least one temperature sensor 112, 114. Furthermore, the processing device is designed to generate the temperature signal T depending on a result of the diagnosis. In particular, the temperature signal

T indicates a fault condition of the at least one temperature sensor 112, 114 if the

The result of the diagnosis indicates a fault in at least one temperature sensor 112, 114.

Additionally or alternatively, according to one embodiment, the cooking utensil 110 comprises a first temperature sensor 112 and a second temperature sensor 114, which are arranged in the

bottom of the cooking utensil 110. The first temperature sensor 112 is designed to provide a first sensor signal, wherein the second temperature sensor

114 is designed to provide a second sensor signal. For example, the

Processing device 116 is designed to process the first sensor signal and the second

sensor signal to calculate the temperature signal T using the first

sensor signal and/or the second sensor signal. In particular, the processing device 116 is designed to carry out a comparison of the first sensor signal and the second sensor signal with each other. In this case, the

Processing device 116 is further designed to generate the temperature signal T depending on a result of the comparison. Advantageously, the

Temperature signal T indicates an error state of the at least one temperature sensor 112, 114 if the result of the comparison represents a difference between the temperatures represented by the sensor signals that is above a predefined threshold value.

The induction hob 120 comprises, by way of example only, a glass plate 122 or

Glass ceramic for placing the cooking utensils 110. The induction hob 120 also comprises an interface module 130 and a hob control device 140, which are connected to one another in a signal-transmitting manner. The interface module 130 is designed to receive and evaluate the temperature signal T in order to generate an evaluated temperature signal Tx.

In particular, the interface module 130 comprises a communication device 132 and an application device 134. The communication device 132, which can also be referred to as a radio module or transceiver, is designed to

temperature signal T from the cooking utensil 110. The application device 134 is designed to evaluate the temperature signal T in order to generate the evaluated temperature signal Tx, and the evaluated

Temperature signal Tx to be output to the hob control device 140. The evaluated temperature signal Tx can be identical in content to the temperature signal T.

The hob control device 140 comprises, by way of example only, an operating module 142, a

Control device 144, an electrical coil 146 and a further temperature sensor 148. The glass plate 122 is arranged between the hob control device 140 and the cooking utensil 110 placed thereon. The control device 144 is designed to control the electrical coil 146 using the evaluated temperature signal Tx.

According to one embodiment, the control device 144 is designed to

To deactivate the current supply to the electrical coil 146 when the evaluated

Temperature signal Tx indicates that the temperature in the bottom of the cooking vessel 110 is above a predefined limit and/or that an error condition of the at least one

temperature sensor 112, 114 or the secure wireless signal transmission between

Cooking utensils 110 and induction hob 120.

Safety-relevant components and/or features of the cooking system 100 are shown in Figure 1 with dashed lines. In particular, the at least one

Temperature sensor 112, 114, the processing device 116, the secured

Data transmission or data connection, the operating module 142, the control device 144 and the additional temperature sensor 148 are shown as safety-relevant components.

The cooking utensil 110 can have additional sensors, for example temperature sensors or the like, at least one operating element, an electrical energy storage device and/or the like, even if this is not explicitly shown or merely indicated in the illustration in Figure 1.

Figure 2 shows a flow chart of an embodiment of a method 200 for

Operating a cooking system. The method 200 for operating is executable to operate the ı5 cooking system of Figure 1 or a similar cooking system. Thus, the method 200 for operating in conjunction with the cooking system of Figure 1 or a similar

The method 200 for operating comprises a step 201 of

Evaluating, a step 203 of transmitting, a step 205 of receiving, a further step 207 of evaluating and a step 209 of controlling.

In step 201 of the evaluation, the at least one sensor signal is evaluated in order to

To generate a temperature signal. In step 203 of transmission, the temperature signal is securely transmitted wirelessly to the induction hob. In step 205 of reception, the temperature signal originating from the cooking utensil is received. In the further step 207 of evaluation, the received temperature signal is evaluated in order to generate the evaluated temperature signal. In step 209 of control, the electrical coil is controlled using the evaluated temperature signal.

With reference to the figures described above, embodiments and advantages of embodiments are summarized again below and, in other words, briefly explained.

A temperature sensor 112 (T1) is integrated in the bottom of the cooking vessel 110, e.g. a

Thermocouple or resistance thermometer (PT1000). It is another

Temperature sensor 114 (T2) is installed near T1, which provides a redundancy signal.

An evaluation electronics or a microcontroller (MC1), here the processing device 116, compares the two temperatures of the two temperature sensors 112 and 114. If the temperatures are approximately the same, the temperature of the first temperature sensor 112 and/or the temperature of the second temperature sensor 140 is transmitted to the cooking surface 120. If the temperatures of the two temperature sensors 112 and 114 differ too much from each other, an error is transmitted with the temperature signal T. The temperatures are only transmitted during so-called remote operation of the cooking system 100. The

The temperature of the cooking utensil 110, or more precisely the bottom of the same, is determined cyclically, approximately once per second. The temperature measurement or evaluation in the

Processing device 116 is implemented securely, whereby security requirements for the

Software and hardware of the processing device 116 are fulfilled and 11 intrinsic safety is ensured. The processing device 116 can also have further

Capture signals from sensors of the cooking utensil 110, such as temperature, buttons,

voltages, etc., and evaluate them. Instead of or in addition to the redundant recording of the

Temperature can also include a diagnostic circuit for the at least one temperature sensor 112, 114. This can then be used to detect line breaks, short circuits and other errors ı5.

System components of the cooking system 100 comprise, according to an embodiment, the following features. A cooking hob or induction hob 120 with

Induction generator or control device 144 and electrical coil 146, further

Temperature sensor 148, operating module 142 or control element with on/off switch and

Glass plate 122 as storage surface. The cooking utensils 110 or system cooking utensils (SGG), e.g.

Pot or pan with at least one temperature sensor 112, 114 and the

Processing device 116, which includes an electronic module (SGG PCB) for detecting the SGG

temperatures and other signals and a radio module (SGG PCB) for wireless

Transmission of the temperatures and signals in the form of the temperature signal T via the secure data connection, e.g. via Bluetooth (BLE). The interface module 130 or interface or interface module for receiving and forwarding the data, comprising the communication device 132 or a radio module for the wireless

Communication with the cooking utensil 110 and the application device 134 or a

Application module for evaluating the data from the cooking utensil 110 and controlling the

Hob electronics or hob control unit 140.

According to one embodiment, the security concept comprises a

Temperature detection in the bottom of the cooking dish 110, a redundant

Temperature detection and/or at least one diagnosable temperature sensor 112, 114, a secure evaluation of the temperature in the processing device 116, a secure transmission of the temperature values to the induction hob 120, a

Evaluation of the temperature of the cooking utensil 110 in the cooking hob, e.g. control module, and switching off the cooking hob or the induction hob 120 if the temperature of the cooking utensil 110 is too high and/or if there are data transmission errors.

The reliable detection of the temperature is made possible in particular by redundant

Thermocouples, whereby the temperature in the bottom of the cooking dish 110 with two

Temperature sensors 112 and 114 are used to measure the temperature, whereby the temperatures are compared and checked for plausibility, or by at least one diagnostic temperature sensor 112, 114 with additional circuitry for detecting cable breaks, short circuits, etc., or by a combination of redundancy and diagnostic capability.

Claims (12)

Patent claims 1. Cooking utensil (110) for placing on an induction hob (120) of a cooking system (100) for cooking food, wherein the cooking utensil (110) has the following features: at least one temperature sensor (112, 114) which is arranged in a base of the cooking utensil (110) which can be placed on the induction hob (120), wherein the at least one temperature sensor (112, 114) is designed to provide at least one sensor signal (S) representing a detected temperature in the base of the cooking utensil (110) in a cooking operation in a state in which the cooking utensil (110) is placed on the induction hob (120); and a processing device (116) which is connected to the at least one temperature sensor (112, 114) in a signal-transmitting manner, wherein the processing device (116) is designed to evaluate the at least one sensor signal (S) in order to generate a temperature signal (T), and wherein the processing device (116) is designed to transmit the temperature signal (T) wirelessly to the induction hob (120) in a secure manner. 2. Cooking utensil (110) according to claim 1, wherein the at least one temperature sensor (112, 114) is designed to be diagnosable, wherein the processing device (116) is designed to carry out a diagnosis of the at least one temperature sensor (112, 114), wherein the processing device (116) is designed to generate the temperature signal (T) depending on a result of the diagnosis. 3. Cooking utensil (110) according to claim 2, wherein the temperature signal (T) indicates a fault condition of the at least one temperature sensor (112, 114) if the result of the diagnosis indicates a fault of the at least one temperature sensor (112, 114). 4. Cooking utensil (110) according to one of the preceding claims, with a first temperature sensor (112) and a second temperature sensor (114) arranged in the bottom of the cooking utensil (110), wherein the first temperature sensor (112) is designed to provide a first sensor signal, wherein the second temperature sensor (114) is designed to provide a second sensor signal. 5. Cooking utensil (110) according to claim 4, wherein the processing device (116) is designed to evaluate the first sensor signal and the second sensor signal in order to generate the temperature signal (T) using the first sensor signal and/or the second sensor signal. 6. Cooking utensil (110) according to one of claims 4 to 5, wherein the processing device (116) is designed to carry out a comparison of the first sensor signal and the second sensor signal with each other, wherein the processing device (116) is designed to generate the temperature signal (T) depending on a result of the comparison. 7. Cooking utensil (110) according to one of claims 4 to 6, wherein the temperature signal (T) indicates an error state of the at least one temperature sensor (112, 114) if the result of the comparison represents a difference between the temperatures represented by the sensor signals (S) that is above a predefined threshold value. 8. Cooking utensil (110) according to one of the preceding claims, wherein the at least one temperature sensor (112, 114) comprises a thermocouple or a resistance thermometer. 9. Cooking utensil (110) according to one of the preceding claims, wherein the at least one temperature sensor (112, 114) is designed to provide the at least one sensor signal (S) cyclically repeatedly, wherein the processing device (116) is designed to evaluate the at least one sensor signal (S) cyclically repeatedly in order to generate the temperature signal (T) cyclically repeatedly, wherein the processing device (116) is designed to transmit the temperature signal (T) cyclically repeatedly in a secure wireless manner to the induction hob (120). 10. Cooking system (100) for cooking food, the cooking system (100) having the following features: at least one cooking utensil (110) according to one of the preceding claims; and the induction hob (120), the induction hob (120) having an interface module (130), a control device (144) and an electrical coil (146), the interface module (130) being designed to receive and evaluate the temperature signal (T) from the cooking utensil (110) in order to generate an evaluated temperature signal (Tx), the control device (144) being designed to control the electrical coil (146) using the evaluated temperature signal (Tx). 11. Cooking system (100) according to claim 10, wherein the control device (144) is designed to deactivate a current supply to the electrical coil (146) if the evaluated temperature signal (Tx) indicates that the temperature in the bottom of the cooking vessel (110) is above a predefined limit value and/or that a There is an error condition in the at least one temperature sensor (112, 114) or in the secure wireless signal transmission between the cooking utensil (110) and the induction hob (120). 12. Method (200) for operating a cooking system (100) according to one of claims 10 to 11, wherein the method (200) comprises the following steps: evaluating (201) the at least one sensor signal (S) in order to generate the temperature signal (T); transmitting (203) the temperature signal (T) in a secure wireless manner to the induction hob (120); receiving (205) the temperature signal (T) from the cooking utensil (110); evaluating (207) the received temperature signal (T) in order to generate the evaluated temperature signal (Tx); and controlling (209) the electrical coil (146) using the evaluated temperature signal (Tx).