DE102019115192A1 - Cooking system and method of operation - Google Patents

Abstract

Cooking system (100) and method for operating a cooking system (200) comprising a hob device (1), cookware (100) and an evaluation device (50). The hob device (1) comprises a set-up area (2) for setting up cookware (100) and two induction devices (3) for heating the cookware (100) set up on the set-up area (2). The cookware (100) is suitable and designed to be heated by means of an induction device (3). The induction devices (3) of the hob device (1) are each assigned a transmitter device (4) and the cookware (100) is assigned a receiver device (101), the transmitter devices (4) each time sending an assignment signal (5) which is received from the receiver device (101 ) of the cookware (100) is received when the cookware (100) is positioned above the corresponding induction device (3). The assignment signals (5) of the individual transmission devices (4) are transmitted with a predetermined time offset so that the evaluation device (50) can assign the assignment signals (5) detected by the receiving device (101) to the individual induction devices (3) and thus assign an assignment of the cookware (100) to an induction device (3).

Description

The present invention relates to a cooking system and a method for operating such a cooking system. The cooking system comprises at least one hob device, at least one cookware and at least one evaluation device, the hob device having at least one installation surface for placing cookware and at least two induction devices for heating the cookware placed on the installation surface. The cookware is suitable and designed to be heated by means of at least one induction device. Furthermore, induction devices of the hob device are each assigned at least one transmitting device and the cookware comprises at least one receiving device. In this case, the transmitting devices each transmit at least one assignment signal at least at times, which is received by the receiving device of the cooking utensil when the cooking utensil is positioned above the corresponding induction device on the installation surface.

The automation of cooking processes and the support of a user are becoming more and more important in modern household appliances. Ease of use is also becoming increasingly important.

In the field of hobs, for example, surface induction hobs are known which do not include any permanently predetermined cooking zones that are clearly indicated on the installation surface of the hob. The cooking zones or the induction coils located underneath an installed pot are then each defined as a cooking zone, with only the corresponding induction coils then being activated.

It is advantageous, if not even necessary, that the hob automatically detects where a pot is placed in order to activate the corresponding induction coils. Various systems have become known for this purpose. For example, systems have also become known in which the induction coils emit signals which are recognized by the standing pot and processed further.

For example, from the publication EP 0561207 A2 known that induction devices to detect the presence of cookware act on the induction coils with a short power pulse (pot detection). The properties of the cookware can be inferred from the behavior of the oscillating circuit.

The detection of the coverage of several induction coils, however, is often only achieved with a high level of design effort. In addition, it is difficult to show the exact partial coverage of several induction coils.

It is therefore the object of the present invention to provide an alternative automatic assignment of a pot or the like to one or more induction coils of a hob, with the percentage coverage of individual induction coils preferably also being detected.

This object is achieved by a method with the features of claim 1 and by a cooking system with the features of claim 18. Preferred developments of the invention are the subject matter of the subclaims. Further advantages and features of the invention emerge from the exemplary embodiments.

The method according to the invention is suitable for operating a cooking system comprising at least one hob device, at least one cookware and at least one evaluation device. In this case, the hob device has at least one set-up area for setting up cookware and at least two induction devices for heating the cookware set up on the set-up area. The cookware is suitable and designed to be heated by means of at least one induction device. Furthermore, at least one transmitting device is assigned to each of the induction devices of the hob device, and the cookware includes at least one receiving device. The transmitting devices each send at least one assignment signal at least at times, which is received by the receiving device of the cooking utensil when the corresponding induction device has been placed on. According to the invention, the assignment signals of the individual transmission devices are sent out with a predetermined time offset so that the evaluation device can assign the assignment signals detected by the receiving device to the individual induction devices and thus assign the cookware to at least one induction device.

The evaluation device is in particular in contact or in operative connection with the hob device and / or the cookware, wherein the evaluation device can preferably be part of the hob device or be integrated into it. Depending on the configuration, the evaluation device can, however, also be assigned to the cookware or preferably be provided as a separate device which is connected to the cookware and / or the hob device. So can For example, the function of the evaluation device can also be made available by a central control device for several household appliances, which can be integrated separately from a household appliance or also into a household appliance.

So that the evaluation unit, which can further process the assignment signals received from the cookware, the cookware preferably comprises at least one communication device by means of which information and / or the received assignment signals can be forwarded to the evaluation device. Such a communication device can take place, for example, via Bluetooth, WLAN, radio or the like or comprise such communication means.

The induction devices each preferably include at least one induction coil, by means of which the cookware can be excited or heated.

The method according to the invention offers many advantages. A considerable advantage is that the method according to the invention makes it possible to provide automatic recognition of the pot position or the position of cookware on the hob device or on the installation surface of the hob device. It can thus be recognized which induction devices or which induction coils are covered by cookware.

It is particularly advantageous that the time-staggered sending of assignment signals creates the possibility of assigning the assignment signals to a specific induction device. In this way, the same assignment signal and / or the same signal components can be used to make a specific assignment of the cookware to a specific coil due to the time offset.

In addition, it is also possible to recognize that a cookware not only stands on an induction coil or is operated by an induction coil, but that, for example, a cookware only partially or completely covers several induction coils. It is thus possible to recognize the use of several induction devices or induction coils for one cookware.

The assignment signals of the individual induction devices preferably include the same predetermined sequences of electromagnetic excitations, which are distinguished by the time offset. A simple assignment signal can be made available via such signals, for example ping signals. Such an electromagnetic excitation or such a ping signal can preferably be made available by at least one area of the electromagnetic excitation of an induction device, a specific section or area or value of the half-waves used for the excitation being used as the signal.

Particularly preferably, the assignment signals of the individual induction devices include different predetermined sequences of electromagnetic excitations as a signature. A clear assignment to a coil can thus be made via the type of electromagnetic signal of the individual coils. The number of electromagnetic signals in the sequence or the number of ping signals and also the spacing of the ping signals can be used as a distinguishing feature for predetermined sequences of electromagnetic excitations. Even with different signal sequences for the individual induction devices, the time offset can ensure that the signals from the individual coils do not overlap and can be evaluated separately.

In expedient further developments, the intensity of at least one assignment signal is taken into account. In this context, intensity is understood to mean in particular the amplitude of electromagnetic radiation or of the electromagnetic signal measured by the receiving device. It can thus be assumed that the corresponding induction device is completely covered at a predetermined maximum amplitude. With lower amplitudes, the corresponding induction devices are only partially covered according to the amplitude.

In expedient refinements, the intensity of the assignment signals is then taken into account in order to conclude that individual induction devices are covered by cooking utensils. This makes it possible to identify the relevant induction devices for an installed cookware using the assigned signals received, and a percentage coverage of the individual induction devices or the individual induction coils can be identified using the intensity or amplitude of the assignment signal. Thus, from the reception of a signal, conclusions can be drawn about the coverage of a coil by a cookware and from the amplitude about the extent of the coverage.

At least one transmission device is preferably provided by at least one induction device. In such a configuration, in particular at least one induction coil of at least one induction device is used as the transmission device. By using an induction coil or a primary coil A transmitting device is made available as a transmitting device without great structural effort.

At least one receiving device particularly preferably comprises at least one coil. Such a coil can be arranged in particular in the base of the cookware. By designing the receiving device as a coil or as a secondary coil, a simple technical implementation of a receiving device is achieved.

An alternative or supplementary receiving device can also be a vibration sensor. The electromagnetic signal generated by the primary coil also causes the cookware to vibrate. The vibration of the cookware can then be detected by the receiving device.

In expedient developments, at least two receiving devices are provided in the cookware. Either two separate receiving devices can be provided or only one receiving device with two receivers, the signals of the two receivers then preferably being able to be evaluated differently or separately. By providing two separate receiving devices or at least two separately evaluable receivers, it is possible to recognize the orientation of the cookware and also movements of the cookware on the installation surface, whereby the translatory movement of the cookware over the installation surface is basically also possible with only one receiving device is.

At least one orientation of the cookware on the installation surface is preferably recognized. This is possible in particular if at least two receiving devices are provided in the cookware.

In particular, when two or more induction devices are covered by the cookware, at least one operating parameter of at least one induction device is set as a function of the orientation of the cookware. In the case of a roaster, for example, two different cooking areas can be made available by providing two receiving devices, for example in the bottom of the roaster. For example, the two receiving devices can be used to identify which of the two coils is pointing in the direction of the user. In a preferred embodiment of a special cookware, it can be achieved, for example, that with a certain orientation of the cookware on the hob device, a hot searing zone is provided at the front and a somewhat cooler warming zone is provided at the rear. If the roaster is set up on the hob in a different orientation, uniform heating of the cookware can be provided, for example. The applicant reserves the right to use cookware with at least two reception devices.

At least one movement of the cookware on the installation surface is preferably recognized. The movement of the cookware over the installation surface can be detected both with a coil and with several receiving devices in the cookware.

The movement of the cookware on the installation surface preferably includes at least one translational and / or at least one rotational movement. It can thus be recognized, for example, whether the cookware is being pulled away from an original position and / or whether the cookware is rotated to the original position. Certain operating parameters can be changed or set by both actions, depending on the configuration. A rotary movement is preferably recognized in a cookware which comprises two receiving devices.

For the detection of a rotational movement, the receiving device of the cookware is elongated, for example triangular or square, in particular asymmetrical. Alternatively or in addition, at least two, in particular of the same type, receiving devices are provided which are provided, for example, in an elongated and / or in an arrangement asymmetrical to the cookware.

At least one operating parameter of the hob device is preferably set on the basis of the movement. For example, by pulling a piece of cookware away from the induction device currently in use, the hob device can be automatically turned off, at least for this cookware. In addition, it is possible, for example, that the power of the corresponding induction device is changed on the spot by turning the cookware. For example, depending on the configuration, turning clockwise can increase the power, while turning counterclockwise causes a reduction in power.

Preferably, at least one set operating parameter of at least one induction device set for a cookware is transmitted to the then relevant induction device or the relevant induction devices when the cookware is moved. For example, by moving the pot on the installation surface, the setting for one cookware can be passed on to others Induction device are transferred if the pot is pushed to another location, for example, for lack of space or for other reasons.

The transmission devices preferably send the assignment signals during operation of at least one induction device. In such a configuration, for example, the electromagnetic radiation used to heat the cookware or areas thereof can also be used as an assignment signal.

In other expedient refinements or also in addition, the transmitting devices also send the assignment signals when the hob device or the induction devices are not in operation. In a method of this type, relatively low electromagnetic radiation is used, in which case a pot position can also be detected when the hob device is switched off or none of the induction devices is in operation.

A display device on the cookware is preferably activated via the assignment signals and / or a change in the assignment signals. For example, the display of parameters or instructions to the user and / or the monitoring of a cooking process can be supported. The applicant reserves the right to claim such cookware.

The hob system according to the invention comprises at least one hob device, at least one cookware and at least one evaluation device, the hob device comprising at least one set-up area for setting up cookware and at least two induction devices for heating the cookware set up on the set-up area. The cookware is suitable and designed to be heated by means of at least one induction device. The induction devices of the hob device are each assigned at least one transmitting device, the cookware comprising at least one receiving device. The transmitting devices are suitable and designed to send at least one assignment signal at least at times, the receiving device being suitable and designed to receive these signals when the cookware is positioned above the corresponding induction device. According to the invention, the evaluation device is suitable and designed to assign the cookware to at least one induction device via the assignment signals sent by the transmitting device with a time offset and detected by the receiving device.

The cooking system according to the invention also offers the advantages already mentioned above for the method according to the invention.

At least one transmission device is preferably provided by at least one induction device or at least one induction coil of the at least one induction device. At least one transmitting device is preferably provided by at least one primary coil.

At least one receiving device particularly preferably comprises at least one coil or at least one secondary coil.

In expedient refinements, at least two receiving devices are provided in the cookware. In this case, either two separate receiving devices are preferably provided and / or one receiving device with at least two separately evaluable receivers.

In expedient refinements, the cookware includes at least one display device, which can be activated or supplied with information in particular by means of at least one assignment signal and / or at least one change in the assignment signal.

Further advantages and features of the present invention emerge from the exemplary embodiment which is explained below with reference to the accompanying figures.

• 1 eine rein schematische Darstellung eines erfindungsgemäßen Kochsystems in einer perspektivischen Ansicht;
• 2 eine rein schematische Darstellung der Bereitstellung von Zuordnungssignalen mittels einer Induktionsspule einer Induktionseinrichtung;
• 3 eine rein schematische Darstellung der Zuordnung eines Kochgeschirrs zu bestimmten Induktionseinrichtungen bzw. Induktionsspulen;
• 4 eine rein schematische Darstellung der Zuordnung eines Kochgeschirrs zu bestimmten Induktionseinrichtungen bzw. Induktionsspulen;
• 5 eine rein schematische Darstellung der Zuordnung eines Kochgeschirrs zu bestimmten Induktionseinrichtungen bzw. Induktionsspulen;
• 6 eine rein schematische Darstellung der Zuordnung eines Kochgeschirrs zu bestimmten Induktionseinrichtungen bzw. Induktionsspulen;
• 7 eine rein schematische Darstellung der Zuordnung eines Kochgeschirrs zu bestimmten Induktionseinrichtungen bzw. Induktionsspulen;
• 8 eine rein schematische Darstellung der Zuordnung eines Kochgeschirrs zu bestimmten Induktionseinrichtungen bzw. Induktionsspulen;
• 9 eine rein schematische Darstellung der Zuordnung eines Kochgeschirrs zu bestimmten Induktionseinrichtungen bzw. Induktionsspulen;
• 10 eine rein schematische Darstellung der Verwendung eines Kochgeschirrs mit zwei Empfangseinrichtungen in zwei unterschiedlichen Orientierungen auf der Kochfeldeinrichtung; und
• 11 eine rein schematische Darstellung der Anordnung eines Kochgeschirrs mit zwei Empfangseinrichtungen auf einer Kochfeldeinrichtung.

In the figures show:

• 1 a purely schematic representation of a cooking system according to the invention in a perspective view;
• 2 a purely schematic representation of the provision of assignment signals by means of an induction coil of an induction device;
• 3 a purely schematic representation of the assignment of a cookware to certain induction devices or induction coils;
• 4th a purely schematic representation of the assignment of a cookware to certain induction devices or induction coils;
• 5 a purely schematic representation of the assignment of a cookware to certain induction devices or induction coils;
• 6th a purely schematic representation of the assignment of a cookware to certain induction devices or induction coils;
• 7th a purely schematic representation of the assignment of a cookware to certain induction devices or induction coils;
• 8th a purely schematic representation of the assignment of a cookware to certain induction devices or induction coils;
• 9 a purely schematic representation of the assignment of a cookware to certain induction devices or induction coils;
• 10 a purely schematic representation of the use of a cookware with two receiving devices in two different orientations on the hob device; and
• 11 a purely schematic representation of the arrangement of a cookware with two receiving devices on a hob device.

In 1 is purely schematically a cooking system according to the invention 200 shown in a perspective view. The cooking system includes 200 in the embodiment shown here a hob device 1 which in the countertop 301 a kitchenette 300 is built in.

The hob device 100 includes a footprint 2 on what cookware 100 can be set up. Below the installation area 2 are in the embodiment shown here several induction devices 3 evenly arranged here, by means of which that on the installation surface 2 standing cookware 100 can be heated. For the sake of clarity, there are only two induction devices 3 in 1 indicated.

The cooking system also includes 200 an evaluation device 50 , which in the embodiment shown here in the hob device 1 is integrated.

The hob device 1 In the exemplary embodiment shown here, it comprises a plurality of transmission devices 4th for sending at least one assignment signal 5 about which in interaction with the cookware 100 and the evaluation device 50 the position of the cookware 100 on the installation surface 2 can be detected automatically. Such is an assignment of the induction devices 3 to one on the installation surface 2 standing cookware 100 possible.

The broadcast facilities 4th are in the embodiment shown here in the induction devices 3 integrated or are through the induction coils of the induction devices 3 made available.

The cookware 100 has a receiving device here 101 on, which in the embodiment shown also by a coil 102 on or in the ground 104 of the cookware 100 provided. Depending on the configuration, more than one receiving device can also be used 101 and / or multiple receivers can be provided.

The broadcast facilities 4th send allocation signals at least temporarily in the method according to the invention 5 from which by means of the receiving device 101 or, depending on the configuration, with several receiving devices 101 of the cookware 100 received or detected when the cookware 100 such on the installation surface 2 is arranged to have it from these induction devices 3 can be heated.

The received assignment signals and / or a further processed signal is sent to the evaluation device by means of a suitable communication device, not shown in detail 50 transfer. The communication device can be in the cookware 100 be integrated or, depending on the design, also be made available as a separate assembly which has suitable functions on the receiving device 101 of the cookware 100 can access.

The cookware 100 can also be a display device 103 include which by the assignment signals 5 activated by changes to the assignment signals or in some other way. It is thus also possible to use the assignment signals to transmit information to the cookware and to the display device 103 to display.

In 2 the mode of operation of the method according to the invention is shown purely schematically. There are four induction devices 3 a hob device 1 shown, the induction coils of the induction devices 3 as broadcast facilities 4th act.

It is known that induction devices for detecting the presence of cookware act on the induction coils with a short power pulse (pot detection). The properties of the cookware can be inferred from the behavior of the oscillating circuit. For a reliable evaluation of the signals, provision is made for the power pulse to be repeated at short, fixed intervals. The power pulses can be understood as assignment signals.

In 2 are two examples of assignment signals 5 for the induction devices 3 shown. It is in the first rows 1-4 shown, that a time-shifted assignment signal 5 through the four induction devices 3 or the 4 transmitting devices 4th is sent, the pattern of the assignment signals being identical. So-called ping signals are provided here, a transmission pattern consisting of at least two, for example three, and according to another embodiment also four or more signals with a certain time interval.

Due to the time lag when sending the assignment signals 5 can still make a clear distinction between the individual induction devices 3 to be hit. The time offset in the exemplary embodiment shown here is approximately 10 ms. However, the time offset can also be selected differently in suitable ranges.

In the lower four lines it is shown purely schematically that the assignment signals 5 , which are now provided as ping signals, do not have the identical structure.

A signal structure is formed here over the distance between the individual signals of the individual transmission devices, which is different and unique for each induction device. A specific induction device can thus be accessed solely via the structure of the assignment signals or the ping signals 3 or a specific transmitting device 4th getting closed.

Due to the time delay in sending the assignment signals 5 there is no common detection of different signals, so that the signal from different induction devices is always unambiguous due to the time component 3 or transmission facilities 4th can be distinguished.

In the 3 and 4th are purely schematic of the assignment signals received from cookware 5 shown, wherein in the embodiment shown here a cookware 100 on only the first induction coil 3 covers. The received and in the evaluation device 50 The evaluated signal corresponds to the signal structure and the time component of the first induction device 3 . This clearly shows the position of the cookware 100 on the installation surface 2 getting closed.

In 4th is shown that the cookware 100 on the first and third induction devices 3 gets up. The corresponding signal is shown on the right, clearly indicating the signal structure and the time reception of the corresponding assignment signals 5 by the receiving device 101 an assignment to certain induction devices 3 can be made so that by the evaluation device 50 the exact position of the cookware 100 on the installation surface 2 recognizes.

In the 5 and 6th one possibility is shown purely schematically, the assignment signals 5 of more than four induction devices 3 or to distinguish between the induction devices of several generators.

Here are the induction devices 3 divided into 2 groups of four, the distinction between the first and the second group being made by a phase shift. So in this case is between the induction devices 3 of a first generator A and those of a second generator B have been achieved via a phase shift of 120 °.

In 5 become two induction devices 3 covered by a cookware. The means of the receiving device 101 of the cookware 100 received and to the evaluation device 50 transmitted assignment signals 5 are next to the induction devices 3 shown.

In 6th is the same arrangement as in 5 shown again with the cookware set up 100 now four induction devices 3 covers. The one from the receiving device 101 of the cookware 100 received and to the evaluation device 50 transferred data or signals are shown again.

In the 7th to 9 is shown purely schematically that the amplitude or the intensity of the received assignment signal 5 can contribute to the optimization of position detection.

In 7th depicted that a cookware 100 predominantly on the first induction device 3 gets up. Only a much smaller part of the cookware 100 also covers the second induction device 3 from.

The percentage coverage of induction devices 3 through a cookware 100 can be the height or amplitude or intensity of the received assignment signals 5 can be clearly identified. The assignment signal received 5 the first induction device 3 is much higher than that of the second induction devices 3 . So can about a corresponding to the cover of an induction device 3 received strength or amplitude or intensity of an assignment signal 5 the percentage coverage of the respective induction device can be concluded.

In 8th is the same arrangement as in 7th shown again, with the first two Induction devices 3 evenly from a cookware 100 be covered. The corresponding assignment signal 5 is shown next to it, with the same amplitude or signal level of the assignment signals 5 to an approximately 50% coverage of the respective induction devices 3 suggests.

In 9 is shown, as already shown in the two previous figures, that via the height or the amplitude or the intensity of an assignment signal 5 the percentage coverage can be concluded. Here are the first four 4 induction devices 3 different from a cookware 100 covered, the first and the second induction device 3 are equally covered and the third and fourth induction devices 3 wherein the first and second induction means are covered to a greater extent than the third and fourth. The corresponding received assignment signals 5 are shown to the right.

In 10 is shown purely schematically that a cookware 100 also more than one receiving device 101 may have. Then next to the position on the installation surface 2 a hob device 1 also the orientation of the cookware 100 on the installation surface 2 can be recognized.

It is indicated purely schematically by the arrow in which orientation the cookware is 100 on the installation surface 2 is located. The cookware 100 is shown purely schematically again in the middle, around the two receiving devices 101 to represent again.

For example, depending on the design, different areas or sections of cookware can be used 100 a different operating mode can be assigned. To do this, depending on the orientation of the cookware 100 on the installation surface 2 or depending on which receiving device 101 facing the user or facing away, different cooking zones are made available.

For example, in the illustration on the left, it is possible for a different searing zone to be made available at the front or facing the user, with the cookware in the rear area 100 Warming zone is made available.

Will the cookware 100 now with a different orientation, set up rotated by 180 ° in the embodiment shown here, a uniform heating of the cookware can for example 100 be provided.

In 11 is indicated purely schematically that by the movement of the cookware 100 on the installation surface 2 a hob device 1 for example, certain operating parameters can be set. This is both with only one receiving device 101 as well as with several receiving devices 101 possible.

Is by the cookware 100 for example only one receiving device 101 provided, translational movements can be detected and z. B. be converted into control signals. It is possible, for example, by pulling away cookware 100 from an induction device 3 this induction device 3 is turned off.

In addition, depending on the configuration, it is possible that the one for an induction device 3 set operating parameters by pulling away the cookware 100 to another induction device 3 on this induction device 3 transferred to.

In particular if at least two receiving devices 101 are provided, rotary motion can also be performed on the installation surface 2 can be recognized, for example by turning the cookware 100 Operating parameters can be changed. For example, when turning the cookware 100 clockwise, the output can be increased, while turning counterclockwise reduces the output.

Other settings can also be suitably adjusted via the movement and / or the orientation of the cookware.

List of reference symbols

1

Hob equipment

2

Installation area

3

Induction device

4th

Sending facility

5

Assignment signal

50

Evaluation device

100

Cookware

101

Receiving device

102

Kitchen sink

103

Display device

104

ground

200

Cooking system

300

Kitchenette

301

Work surface

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 0561207 A2 [0005]

Claims (22)

A method for operating a cooking system (200) comprising at least one hob device (1), at least one cookware (100) and at least one evaluation device (50), the hob device (1) having at least one set-up surface (2) for setting up cookware (100) and comprises at least two induction devices (3) for heating the cookware (100) placed on the installation surface (2), and wherein the cookware (100) is suitable and designed to be heated by means of at least one induction device (3), the induction devices (3 ) the hob device (1) is assigned at least one transmitter device (4) and the cookware (100) comprises at least one receiver device (101), the transmitter devices (4) each emitting at least one assignment signal (5) at least at times, which is determined by the Receiving device (101) of the cookware (100) is received when the cookware (100) above the corresponding induction device (3) is positioned on the installation surface (2), characterized in that the assignment signals (5) of the individual transmission devices (4) are transmitted with a predetermined time offset, so that the evaluation device (50) receives the information received by the receiving device (101) can assign detected assignment signals (5) to the individual induction devices (3) and thus assign the cookware (100) to at least one induction device (3). Procedure according to Claim 1 , characterized in that the assignment signals (5) of the individual induction devices (3) include the same predetermined sequences of electromagnetic excitations, which are distinguished by the time offset. Method according to one of the preceding claims, characterized in that the assignment signals (5) of the individual induction devices (3) include different predetermined sequences of electromagnetic excitations as a signature. Method according to one of the preceding claims, characterized in that the intensity of at least one assignment signal (5) is taken into account. Method according to one of the preceding claims, characterized in that the intensity of the assignment signals (5) is taken into account in order to conclude that individual induction devices (3) are covered by a cookware (100). Method according to one of the preceding claims, characterized in that at least one transmission device (4) is made available by at least one induction device (3). Method according to one of the preceding claims, characterized in that at least one receiving device (101) comprises at least one coil (102). Method according to one of the preceding claims, characterized in that at least two receiving devices (101) are provided in the cookware (101). Method according to the preceding claim, characterized in that at least one orientation of the cookware (100) on the installation surface (2) is recognized. Method according to the preceding claim, characterized in that when two or more induction devices (3) are covered by the cookware (100) at least one operating parameter of at least one induction device depends on the orientation of the cookware (100). Method according to one of the preceding claims, characterized in that at least one movement of the cookware (100) on the installation surface (3) is detected. Method according to the preceding claim, characterized in that the movement comprises at least one translational and / or rotational component. Method according to one of the two preceding claims, characterized in that at least one operating parameter of the hob device (1) is set on the basis of the movement. Method according to one of the three preceding claims, characterized in that at least one operating parameter of an induction device (3) set for a cookware (100) is transferred to the induction device (3) then relevant when the cookware (100) is moved. Method according to one of the preceding claims, characterized in that the transmission device (4) sends the assignment signals (5) during operation of at least one induction device (3). The method according to any one of the preceding claims, characterized in that the Transmission device (4) sends the assignment signals (5) when the induction devices (3) are not in operation. Method according to one of the preceding claims, characterized in that a display device (103) on the cookware (100) is activated via the assignment signals (5) and / or a change in the assignment signals (5). Cooking system (200) comprising at least one hob device (1), at least one cookware (100) and at least one evaluation device (50), wherein the hob device (1) has at least one set-up surface (2) for setting up cookware (100) and at least two induction devices ( 3) for heating the cookware (100) placed on the installation surface (2) and wherein the cookware (100) is suitable and designed to be heated by means of at least one induction device (3), the induction devices (3) of the hob device ( 1) in each case at least one transmission device (4) is assigned and wherein the cookware (100) comprises at least one receiving device (101), the transmission devices (4) being suitable and designed to transmit at least one assignment signal (5) at least from time to time and wherein the receiving device (101) is suitable and designed for receiving an assignment signal (5), if there s cookware (100) is positioned above the corresponding induction device (3) on the installation surface (2), characterized in that the evaluation device (50) is suitable and designed to use the transmission devices (4) transmitted and assignment signals (5) detected by the receiving device (101) to assign the cookware (100) to at least one induction device (3). Cooking system according to the preceding claim, characterized in that at least one transmission device (4) is made available by at least one induction device (3). Cooking system according to one of the Claims 18 to 19th , characterized in that at least one receiving device (101) comprises at least one coil (102). Cooking system according to one of the Claims 18 to 20th , characterized in that at least two receiving devices (101) are provided in the cookware (100). Cooking system according to one of the Claims 18 to 21st , characterized in that the cookware (100) comprises at least one display device (103).

Images