BE1031250B1 - 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) in order to generate a temperature signal. The processing device (116) is designed to generate a data packet (Fx) and to transmit it wirelessly to the induction hob (120) in a secure manner. The data packet (Fx) comprises safety-relevant data which has at least the temperature signal as a safety-relevant data block and a test value determined by means of a safety process for the safety-relevant data block.

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 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 an evaluation of the

Pot bottom temperature in the cooking hob, or in other words an evaluation of the recorded temperature of the bottom of the cooking utensil in an induction hob, in particular in a secure data transmission of safety-relevant

Data packets across different components, in particular between a unit that originally sends the data to a final receiving unit for which the data is intended. The recorded temperature can be securely transmitted from the cooking utensil to the hob or induction hob. It can be ensured that part of the data is safety-relevant and is appropriately secured in a

Safety controller of the induction hob. It is therefore a safe

Transmission, in particular according to standardization, of the data is possible, whereby a

Temperature transmission, for example using various transmission technologies and not necessarily exclusively radio technology, can be used with encryption. This can lead to increased security relevance of the transmitted data, so that ı5 integration into security-relevant technology can take place.

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 is designed to measure the temperature 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, wherein the processing device is designed to generate a data packet and to transmit it wirelessly to the induction hob in a secure manner, wherein the data packet has safety-relevant data which at least includes the temperature signal as a safety-relevant data block and a

Check value for the safety-relevant data block.

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 to the induction hob by radio, in particular by Bluetooth or a similar transmission standard. The data packet can also be referred to as a so-called frame. The test value can be a

checksum or something similar.

According to one embodiment, the security process can have a cyclic 190 redundancy check. This offers the advantage that errors in data transmission can be reliably detected.

The security-relevant data can also provide a continuous packet counter for the

data packet. This offers the advantage that all transmitted data packets are given consecutive numbers so that a possible failure or lack of transmission of a data packet can be easily and reliably detected.

Furthermore, the safety-relevant data block can contain identification information for the unique identification of the cooking utensil. This offers the advantage that

By using multiple cooking utensil units on the induction hob, it is easy and precise to determine which cooking utensil delivers which measurement value.

In addition, the data packet can contain additional data that is added outside of the safety-relevant data. This offers the advantage that non-safety-relevant data, such as additional measured values from other sensors or the like, can also be transmitted as additional data in the data packet.

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, an operating module and an electrical coil, wherein the

Interface module is designed to receive the data packet from the cooking utensil, wherein the control device and/or the operating module is designed to

Verification of the check value from the security-relevant data of the data packet under

Using the safety process, wherein the control device is designed to operate the electrical coil depending on a result of the check under

Using the temperature signal from the safety-relevant data of the data packet.

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 supply 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.

Only the processing device of the cooking utensil and the control device of the induction hob can be designed to use the safety process.

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

To deactivate the power supply to the electrical coil if the temperature signal from the safety-relevant data of the data packet indicates that the temperature in the base of the cooking utensil is above a predefined limit. This offers the advantage that safe cooking can be ensured, whereby in particular reliable protection against overheating of the food being cooked can be provided.

The control device can also be designed to supply current to the electrical

Deactivate the coil if the test value is incorrect. This offers the advantage that if safety-relevant data is potentially compromised, the cooking process can be reliably interrupted or aborted. The evaluation of whether the test value is incorrect can be carried out by the control device and/or the operating module.

Furthermore, the control device can be designed to supply current to the electrical

coil if a continuous packet counter for the data packet is incorrect and additionally or alternatively a reception of the data packet is interrupted. This provides the

The advantage is that if the data transmission is compromised, the cooking process can be safely interrupted or aborted. The evaluation of whether the data packet is incorrect and/or the reception of the data packet is interrupted can be carried out by the

control device and/or the operating module.

A method of operating an embodiment of a herein mentioned

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

Creating the data packet;

Transfer of the data packet securely wirelessly to the induction hob;

Receiving the data packet from the cooking utensil;

Performing the verification of the test value from the safety-relevant data of the

data packet using the security process; and

Controlling the electrical coil using the temperature signal from the safety-relevant data of the data packet depending on a result of the

Examination.

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; and

Figure 3 is a schematic representation of a data packet according to a

Example of implementation.

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 with an on/off switch, guarantees a safe switch-off. In the current version of the standard, a relatively large

If the quantity of food to be cooked is assumed (e.g. 3 litres of oil), in the future it might be possible to guarantee compliance with the maximum temperature even for smaller quantities (a few millilitres) during remote operation.

To monitor the pot temperature, for example, a temperature sensor (e.g. NTC) is installed below the glass plate in current hobs to measure 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 approximately 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 food is also heated up quickly. However, the temperature of the glass plate or the temperature sensor can only follow this rapid increase with a delay. This can result in the switch-off temperature being detected too late in the sensor and therefore in the food.

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 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 utensils 110 are 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. The s processing device 116 is for example in or on a side wall of the

Cooking utensil 110. The processing device 116 is also designed to

To generate data packet Fx and transmit it wirelessly to the induction hob 120. The data packet Fx contains safety-relevant data, which at least

Temperature signal as a safety-relevant data block and one by means of a

The test value determined during the safety process must be greater than the safety-relevant data block.

In particular, the processing device 116 is designed to determine the test value via the security-relevant data block by means of the security process and to enter it into the

Data packet Fx. According to one embodiment, the

security process a cyclic redundancy check. According to another

In this embodiment, the safety-relevant data also includes a continuous

Packet counter for the data packet Fx. Here, the processing device 116 is designed to add the continuous packet counter to the data packet Fx. According to yet another embodiment, the security-relevant data block includes identification information for the unique identification of the cooking utensil 110. The

Processing device 116 is designed to include the identification information in the security-relevant data block. The data packet Fx has, according to a

embodiment also contains additional data that are added outside of the security-relevant data. Here, the processing device 116 is designed to

To add additional data outside the security-relevant data to the data packet Fx.

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 depending on a result of the diagnosis. In particular, the temperature signal indicates an error state 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, the second temperature sensor 114 being designed to provide a second sensor signal. For example, the

Processing device 116 is 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/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.

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

Temperature signal indicates an error condition 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. Furthermore, the induction hob 120 comprises an interface module 130 and a hob control device 140, which are connected to one another in a signal-transmitting manner.

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

to receive data packet Fx from the cooking utensil 110. The application device 134 is designed to send the data packet Fx to the hob

Control device 140 to output and optionally additionally evaluate.

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 and/or the operating module 142 is designed to

Verification of the check value from the safety-relevant data of the data packet Fx under

Using the security process. The security process is only or exclusively carried out by the processing device 116 and by the

control device 144 and/or the operating module 142, in particular because only these have knowledge of the safety process. The

Control device 144 is designed to control the electrical coil 146 depending on a result of the check using the evaluated temperature signal from the safety-relevant data of the data packet Fx.

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

The control device 144 is designed to deactivate the energization of the electrical coil 146 if the temperature signal from the safety-relevant data of the data packet Fx indicates that the temperature in the bottom of the cooking utensil 110 is above a predefined limit value. Additionally or alternatively, the control device 144 is designed to deactivate the energization of the electrical coil 146 if the test value from the safety-relevant data of the data packet Fx is incorrect. Additionally or alternatively, the control device 144 is designed to

To deactivate the energization of the electrical coil 146 if the continuous packet counter for the data packet Fx is incorrect and/or reception of the data packet Fx is interrupted.

Incorrect data etc. can be detected, for example, by the operating module 142, which then instructs the control device 144 to control the electrical coil 146 accordingly.

Even if it is not explicitly shown in the illustration of Figure 1, for example, protocol-specific and non-security-relevant data of the data packet Fx can be transmitted at at least one intermediate station from the processing device 116 to the

Control device 144 can be removed, replaced or modified.

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

Cooking system of Figure 1 or a similar cooking system. Thus, the method 200 is for operation in conjunction with the cooking system of Figure 1 or a similar

The method 200 for operating comprises a step 201 of

generating, a step 203 of transmitting, a step 205 of receiving, a

Step 207 of execution and step 209 of control.

In the step 201 of generating, the data packet is generated. In the step 203 of

The data packet is securely transmitted wirelessly to the induction hob.

In step 205 of receiving, the data packet transmitted by the cooking utensil is received. In step 207 of executing, the verification of the check value from the safety-relevant data of the data packet is carried out using the

In addition, the packet counter can be evaluated. In step 209 of controlling, the electrical coil is controlled using the temperature signal from the safety-relevant data of the data packet depending on the result of the check carried out in step 207 of implementing. If expected data is not received, such as during a connection interruption, the hob is put into an emergency mode or alternatively switched off. ı5 Figure 3 shows a schematic representation of a data packet Fx according to a

Example. The data packet Fx can also be a so-called frame or

Frame. The data packet Fx corresponds or is similar to the data packet described in one of the figures described above. In the schematic

In Figure 3, subunits of the data packet Fx are explicitly shown.

According to the embodiment shown here, the data packet Fx comprises the safety-relevant data SR and additional data NSR or non-safety-relevant data.

The safety-relevant data SR include, according to the

The safety-relevant data block SRDB, which is the

temperature signal T and the identification information ID, and further the test value

CRC and the continuous packet counter #F. The additional data NSR includes at least one data block NSR1, NSRn with non-safety-relevant data, such as

Measurements from other sensors, status information and/or the like.

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

In the processing device 116 of the cooking utensil 110, data is determined for transmission to other modules of the cooking system 100. This is safety-relevant

Data SR and non-safety-relevant data or additional data NSR. The safety-relevant data SR includes, for example, at least the

Identification information ID for the unique identification of the cooking utensil 110, the

Temperature signal T and optionally additional safety-relevant data, such as

temperatures, button states (ON/OFF), etc., the continuous packet counter #F and the

Check value CRC over the safety-relevant data block SRDB. The generation of the

The checksum or the check value CRC is only known to the transmitter, here the processing device 116 of the cooking utensil 110, and the receiver, here the control device 144 and/or the operating module 142 of the hob 120. The control device 144 and/or the operating module 142 evaluates the received data. If the data is incorrect or, for example, the temperature is too high, the control device 144 switches off the generator or deactivates the power supply to the electrical coil 146. The data is incorrect if the packet counter #F jumps, the check value CRC is incorrect and/or the data reception is interrupted.

According to one embodiment, data transmission is secured within the

Cooking system 100 as follows: The cooking system 110, more precisely the

The data packet Fx sent by the processing device 116 of the same includes the

Safety-relevant data SR and the additional data NSR or non-safety-relevant

Data. The safety-relevant data SR includes the safety-relevant data block

SRDB with the identification information ID and the temperature signal T or the

Dish bottom temperature, extended by the packet counter #F and the check value CRC (cyclic redundancy check), whereby the check value CRC (cyclic redundancy check) is only formed via the safety-relevant data block SRDB. The additional data NSR includes, for example, data from other sensors, e.g. temperature, vibration,

Position sensor, various status data, such as battery, display, etc.

Claims (10)

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), wherein the processing device (116) is designed to generate a data packet (Fx) and to transmit it wirelessly to the induction hob (120) in a secure manner, wherein the data packet (Fx) has safety-relevant data (SR) which has at least the temperature signal (T) as a safety-relevant data block (SRDB) and a check value (CRC) determined by means of a safety process via the safety-relevant data block (SRDB). 2. Cooking utensil (110) according to claim 1, wherein the safety process comprises a cyclic redundancy check. 3. Cooking utensils (110) according to one of the preceding claims, wherein the safety-relevant data (SR) comprises a continuous packet counter (#F) for the data packet (Fx). 4. Cooking utensil (110) according to one of the preceding claims, wherein the safety-relevant data block (SRDB) has identification information (ID) for uniquely identifying the cooking utensil (110). 5. Cooking utensil (110) according to one of the preceding claims, wherein the data packet (Fx) comprises additional data (NSR) added outside of the safety-relevant data (SR). 6 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), wherein the induction hob (120) has an interface module (130), a control device (144), an operating module (142) and an electrical coil (146), wherein the interface module (130) is designed to receive the data packet (Fx) from the cooking utensil (110), wherein the control device (144) and/or the operating module (142) is designed to carry out a check of the check value (CRC) from the safety-relevant data (SR) of the data packet (Fx) using the safety process, wherein the control device (144) is designed to control the electrical coil (146) using the temperature signal (T) from the safety-relevant data (SR) of the data packet (Fx) depending on a result of the check. 7. Cooking system (100) according to claim 6, wherein the control device (144) is designed to deactivate a current supply to the electrical coil (146) when the temperature signal (T) from the safety-relevant data (SR) of the data packet (Fx) indicates that the temperature in the bottom of the cooking utensil (110) is above a predefined limit value. 8. Cooking system (100) according to one of claims 6 to 7, wherein the control device (144) is designed to deactivate a current supply to the electrical coil (146) if the check value (CRC) is incorrect. 9. Cooking system (100) according to one of claims 6 to 8, wherein the control device (144) is designed to deactivate a current supply to the electrical coil (146) if a continuous packet counter (#F) for the data packet (Fx) is incorrect and/or reception of the data packet (Fx) is interrupted. 10. Method (200) for operating a cooking system (100) according to one of claims 6 to 9, wherein the method (200) comprises the following steps: generating (201) the data packet (Fx); transmitting (203) the data packet (Fx) securely wirelessly to the induction hob (120); receiving (205) the data packet (Fx) from the cooking utensil (110); carrying out (207) the verification of the check value (CRC) from the safety-relevant data (SR) of the data packet (Fx) using the security process; and Controlling (209) the electrical coil (146) using the temperature signal (T) from the safety-relevant data (SR) of the data packet (Fx) depending on a result of the check.