CN110558812A

CN110558812A - Anti-overflow device, anti-overflow control method, anti-overflow control system and induction cooker assembly

Info

Publication number: CN110558812A
Application number: CN201810574347.5A
Authority: CN
Inventors: 徐辉任; 王志锋; 刘传兰; 刘志才; 严平; 许其养
Original assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
Priority date: 2018-06-06
Filing date: 2018-06-06
Publication date: 2019-12-13

Abstract

The invention provides an anti-overflow device, an anti-overflow control method and system, computer equipment, a computer readable storage medium and an induction cooker assembly, wherein the induction cooker assembly comprises a cooker and an induction cooker, the cooker comprises a cooker cover and a cooker body, the induction cooker comprises a magnetic excitation coil, and the anti-overflow device comprises: the anti-overflow electrode plate is arranged on the pot cover or on the inner side wall of the pot body, faces towards the inside of the pot body, and is arranged on one side of the pot cover, which faces towards the outside of the pot body when the anti-overflow electrode plate is arranged on the pot cover; a control device, comprising: the data acquisition and processing module is electrically connected with the anti-overflow electrode plate and is used for acquiring a capacitance change signal between the anti-overflow electrode plate and the liquid level in the pot body and generating a control signal according to the capacitance change signal; and the communication module is electrically connected with the data acquisition and processing module and the magnetic excitation coil and used for sending a control signal to the controller of the magnetic excitation coil, and the communication module is a wireless communication module. The non-contact anti-overflow can be realized, and the heating state of the magnetic excitation coil can be adjusted in time.

Description

anti-overflow device, anti-overflow control method, anti-overflow control system and induction cooker assembly

Technical Field

the invention relates to the technical field of cooking appliances, in particular to an anti-overflow device, an anti-overflow control method, an anti-overflow control system, computer equipment, a computer readable storage medium and an induction cooker assembly.

background

The electromagnetic oven has the problem of boiling and overflowing during the use process of cooking soup and porridge, so that the product quality and the user experience are greatly reduced.

The general method is a passive anti-overflow structure design, for example, a water guiding rib with a flow channel function is arranged around a heat dissipation hole of the induction cooker, and a drain hole is arranged at the end of the water guiding rib, when the overflow volume of the induction cooker is large, water passes through the water guiding rib and is quickly drained to the outside of the induction cooker through the drain hole. However, the passive overflow-preventing structural design can not realize overflow early warning and intelligent control, and the potential risk of overflow-preventing failure exists when the water quantity is too large or the heating is too fast.

there is also a method of arranging a columnar anti-overflow probe in the pan, but the overflow detection can be realized only by contacting food, and the installation and cleaning of the electrodes are inconvenient.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

to this end, a first aspect of the present invention provides an overfill prevention device.

A second aspect of the present invention provides an overfill prevention control method.

A third aspect of the present invention provides an overfill prevention control system.

a fourth aspect of the invention provides a computer device.

a fifth aspect of the invention provides a computer-readable storage medium.

A sixth aspect of the invention provides an induction cooking hob assembly.

in view of the above, according to a first aspect of the present invention, there is provided an anti-overflow device for an induction cooker assembly, the induction cooker assembly including a pot and an induction cooker, the pot including a pot cover and a pot body, the induction cooker including a magnetic excitation coil, the anti-overflow device including: the anti-overflow electrode plate is arranged on the pot cover or on the inner side wall of the pot body, faces towards the inside of the pot body, and is arranged on one side of the pot cover, which faces towards the outside of the pot body when the anti-overflow electrode plate is arranged on the pot cover; a control device, comprising: the data acquisition and processing module is electrically connected with the anti-overflow electrode plate and is used for acquiring a capacitance change signal between the anti-overflow electrode plate and the liquid level in the pot body and generating a control signal according to the capacitance change signal; and the communication module is electrically connected with the data acquisition and processing module and the controller of the magnetic excitation coil and used for sending a control signal to the controller of the magnetic excitation coil, and the communication module is a wireless communication module.

according to the anti-overflow device provided by the invention, the anti-overflow electrode plate is arranged on the pot cover or the inner side wall of the pot body, and a capacitor is formed between the anti-overflow electrode plate and the liquid level in the pot body, so that non-contact anti-overflow can be realized, and the problems that the edible safety is influenced, the probe is not easy to clean and the like due to the fact that a probe and other structures are adopted to contact food materials are avoided. Through setting up controlling means, gather the electric capacity change signal and handle the electric capacity change signal through data acquisition and processing module, generate control signal, rethread wireless communication module sends this control signal to the controller of magnetic excitation coil, in order to control magnetic excitation coil, the intelligent control of anti-overflow has been realized on the one hand, on the other hand has realized the initiative early warning before the boiling overflows, be favorable to timely control magnetic excitation coil to reduce heating power or stop heating and prevent the overflow, and wireless communication module be provided with and do benefit to realization remote control, needn't complicated wiring alright transmit control signal to magnetic excitation coil's controller. Specifically, because magnetic excitation coil produces the alternating electric field in the electromagnetism stove, the metal pan can produce eddy current in the alternating electric field, and then the soup in the pot body contacts promptly with the pot body and connects the electricity, when the electromagnetism stove heating, liquid level boiling in the pot body is when rising, electric capacity between the two changes thereupon, gather electric capacity change signal through data acquisition and processing module, can in time judge whether the liquid in the pot body is about to overflow, wherein, electric capacity change signal, preferably current voltage value signal, of course, also can be for current value signal etc. can embody the parameter signal that the liquid level height changes and all accord with the innovation thinking of this application.

in addition, according to the anti-overflow device in the above technical solution provided by the present invention, the following additional technical features may also be provided:

In the above technical solution, preferably, when the anti-overflow electrode sheet is disposed on the pot lid, the anti-overflow electrode sheet is located at the top or edge of the pot lid.

in the technical scheme, the anti-overflow electrode plate is arranged at the top or the edge of the pot cover, so that on one hand, the pot cover can be used for ensuring that the anti-overflow electrode plate keeps a distance from the liquid level in the pot body, liquid is prevented from contacting the anti-overflow electrode plate or a related conductive component, and further the failure of a capacitor structure is avoided; on the other hand, the pot cover often is the curved surface and to the outside salient of pan, with anti-overflow electrode piece setting in the outside compare in setting up in the inboard more be convenient for fix, improved the reliability of product. Of course, the anti-overflow electrode plate can be arranged at any position on the pot cover, and preferably, the anti-overflow electrode plate is adhered to or clamped on the pot cover.

in any of the above technical solutions, preferably, when the anti-overflow electrode sheet is disposed on the pot lid, the control device is located in a pot lid handle of the pot; when the anti-overflow electrode plate is arranged on the inner side wall of the pot body, the control device is positioned in the pot body handle of the pot.

In this technical scheme, when the anti-overflow electrode piece sets up on the pot cover, through setting up controlling means in the pot cover handle, shortened the distance between anti-overflow electrode piece and the controlling means on the one hand, and then be convenient for signal accuracy and timely transmission between the two, on the other hand accessible pot cover handle is with controlling means cladding in it, and makes it avoid the interference of the steam that discharges. Through setting up the anti-overflow electrode piece on the inside wall of the pot body, convenience of customers uncaps the lid and cooks, need not the user and observes with the eye in real time, prevents that the internal liquid of pot from excessive. Through setting up controlling means in pot body handle, shortened the distance between anti-overflow electrode piece and the controlling means on the one hand, on the other hand has reduced the occupation space of pan, and has made controlling means avoid the interference of the steam that the pot body discharged.

in any of the above technical solutions, preferably, when the anti-overflow electrode sheet is disposed on the pot cover, the anti-overflow electrode sheet is located between the pot cover and the pot cover handle.

In the technical scheme, the anti-overflow electrode plate is clamped between the pot cover and the pot cover handle, so that the installation stability of the anti-overflow electrode plate is improved while the anti-overflow electrode plate is convenient to install. Preferably, the anti-overflow electrode slice is directly attached to the pot cover handle, so that the connection distance between the anti-overflow electrode slice and the control device is shortened as much as possible, and the stability of signal transmission is improved.

in any of the above technical solutions, preferably, the anti-overflow electrode sheet is provided with a first through hole; the pot cover handle is provided with a threaded hole, and the threaded hole, the first through hole and the second through hole on the pot cover are coaxial; the anti-overflow device still includes: and the threaded fastener sequentially penetrates through the second through hole and the first through hole and is matched with the threaded hole.

In this technical scheme, pass second through-hole on the pot cover, the first through-hole on the anti-overflow electrode piece and the screw hole on the pot cover handle in proper order through unified threaded fastener to link together pot cover, anti-overflow electrode piece and pot cover handle, improved the fastness that the three is connected on the one hand, on the other hand has simplified assembly step and assembly part, make the three accessible unified threaded fastener once alternate and assemble together.

in any of the above technical solutions, preferably, the anti-overflow electrode sheet is a metal electrode sheet.

In the technical scheme, the anti-overflow electrode plate is preferably a metal electrode plate, has good conductivity, can accurately reflect capacitance change, and is further favorable for accurately judging the rise height of the liquid level to avoid overflow. Preferably, the anti-overflow electrode plate is a stainless steel electrode plate or an aluminum electrode plate.

In any of the above technical solutions, preferably, the data collecting and processing module is electrically connected to the anti-overflow electrode sheet through a wire, a metal spring, a conductive tape or a conductive paste.

In the technical scheme, the data acquisition and processing module can be electrically connected with the anti-overflow electrode plate through a wire, can also be electrically connected with the anti-overflow electrode plate through a metal elastic sheet, can also be electrically connected with the anti-overflow electrode plate through a conductive adhesive tape or conductive paste, can also be randomly combined through the four connection modes, is electrically connected with the data acquisition and processing module and the anti-overflow conducting plate, and can select a proper electrical connection mode according to the requirement.

In any one of the above technical solutions, preferably, the control device further includes: and the power supply module is electrically connected with the anti-overflow electrode plate, the data acquisition and processing module and the communication module and is used for supplying power to the anti-overflow electrode plate, the data acquisition and processing module and the communication module.

In the technical scheme, the control device is also provided with a power supply module which is respectively and electrically connected with the anti-overflow electrode plate, the data acquisition and processing module and the communication module to supply power to the anti-overflow electrode plate, the data acquisition and processing module and the communication module. The anti-overflow electrode plate is electrically connected with the data acquisition and processing module, so that the power supply module can be directly electrically connected with the anti-overflow electrode plate, and the power supply module is indirectly electrically connected with the data acquisition and processing module.

In any of the above technical solutions, preferably, the power supply module is a battery or a solar battery or a wireless charging module.

in this technical scheme, power module can be for battery powered, also can be for solar cell powered, and at this moment, preferably, increase the solar energy and absorb the board, can set up the upper surface at the pot cover, or set up the upper surface or the side at the pot cover handle, or set up the lateral surface at the pot body, when energy-concerving and environment-protective, be favorable to guaranteeing to switch on for a long time between anti-overflow electrode piece, data acquisition and processing module and the communication module. The power supply module can also be a wireless charging module, an alternating magnetic field generated by a magnetic excitation coil of the induction cooker can be used for charging the wireless charging module, the induction cooker is favorably ensured to be in a power-on state all the time in the use process due to continuous charging of the wireless charging module, and the anti-overflow electrode plate, the data acquisition and processing module and the communication module are ensured to be in a power-on state, so that the control device cannot fail due to insufficient power supply.

A second aspect of the present invention provides an overfill prevention control method for an overfill prevention device as in any of the preceding claims, the overfill prevention control method comprising: collecting a capacitance change signal; converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value; judging whether the AD value meets a preset condition or not; and when the AD value meets a preset condition, sending a control signal to adjust the operating power of the magnetic excitation coil.

Because the change of the liquid level in the boiler body is accompanied with the change of the capacitance between the anti-overflow electrode plate and the liquid level, the anti-overflow control method provided by the invention can reflect the height condition of the liquid level in time by acquiring the capacitance change signal, thereby being beneficial to timely and accurately adjusting the operating power of the magnetic excitation coil and avoiding the overflow of the liquid. Specifically, after the acquired capacitance change signal is converted into a digital signal to obtain an AD value, the AD value is compared with a preset condition, and when the AD value is judged to meet the preset condition, that is, when the liquid is judged to overflow, a control signal is sent to a controller of the magnetic excitation coil, so that the controller controls the magnetic excitation coil to reduce the heating power or controls the magnetic excitation coil to stop heating. Preferably, the AD value is a voltage value.

in addition, according to the anti-overflow control method in the above technical solution provided by the present invention, the following additional technical features may also be provided:

in the above technical solution, preferably, the step of determining whether the AD value satisfies the preset condition specifically includes: receiving food material information; searching a first threshold corresponding to the food material information; and judging whether the AD value is larger than a first threshold value.

because different edible materials, the conductivity coefficient of the liquid in the pot body is different, can influence the size of the capacitance value between the anti-overflow electrode slice and the liquid level, this technical scheme is through receiving edible material information to compare AD value with the first threshold value corresponding with edible material information, judge whether to send control signal to the controller of magnetic excitation coil, can accurately judge the liquid level height condition of current edible material, be favorable to accurately adjusting magnetic excitation coil's heating power, avoid the internal liquid of pot to overflow.

In any of the above technical solutions, preferably, the step of determining whether the AD value satisfies the preset condition specifically includes: receiving food material information; searching a second threshold corresponding to the food material information; recording the change curve of the AD value, and calculating a first derivative value AD' of the change curve at the current moment; it is determined whether the first derivative value AD' is greater than a second threshold value.

In the technical scheme, by recording the change curve of the AD value and calculating the first-order derivative value AD ' of the change curve at the current moment, the first-order derivative value AD ' is compared with the second threshold value corresponding to the food material information, on one hand, different second threshold values can be selected for comparison according to different food materials, the accuracy of judging whether the liquid level is about to overflow is improved, on the other hand, the change amplitude of the liquid level height can be intuitively obtained by first-order derivation of the change curve of the AD value, particularly, when the liquid obviously rolls and is about to overflow, the rising speed of the liquid level is rapidly accelerated, further, whether the liquid is about to overflow can be accurately judged according to the first-order derivative value AD ', and the magnetic exciting coil can be controlled to reduce the heating power or suspend heating.

in any of the above technical solutions, preferably, the second threshold is greater than or equal to a peak value of the first derivative value AD' of any food material before boiling.

In the technical scheme, the second threshold is greater than or equal to the peak value of the first-order derivative value AD' of any food material before boiling, so that misjudgment can be effectively prevented, and misjudgment caused by different food materials with different rising amplitudes before boiling can be avoided.

In any of the above technical solutions, preferably, the step of determining whether the AD value satisfies the preset condition specifically includes: receiving food material information; searching a third threshold corresponding to the food material information; calculating the difference value delta AD between the AD value at the current moment and the AD value obtained last time; and judging whether the difference value delta AD is larger than or equal to a third threshold value.

Due to different food materials, even if the liquid level rises to the same height, the AD value between the liquid level and the anti-overflow electrode plate changes differently; according to the technical scheme, the difference value between the AD value at the current moment and the AD value obtained last time, namely delta AD, is compared with the third threshold value corresponding to the food material information, on one hand, the third threshold value corresponding to the food material is selected for comparison, so that the judgment errors caused by different food materials can be effectively avoided, on the other hand, the influence caused by different food materials can be further reduced by calculating the difference value delta AD and comparing the difference value delta AD with the third threshold value, and the accuracy of judging whether the liquid level is about to overflow or not is improved.

A third aspect of the present invention provides an overfill prevention control system for an overfill prevention device as in any of the preceding claims, the overfill prevention control system comprising: the acquisition unit is used for acquiring capacitance change signals; the conversion unit is used for converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value; the judging unit is used for judging whether the AD value meets a preset condition or not; and the control unit is used for sending a control signal to adjust the operating power of the magnetic excitation coil when the AD value meets a preset condition.

because the change of the liquid level in the boiler body is accompanied with the change of the capacitance between the anti-overflow electrode plate and the liquid level, the anti-overflow control system provided by the invention can reflect the height condition of the liquid level in time by acquiring a capacitance change signal, thereby being beneficial to timely and accurately adjusting the operating power of the magnetic excitation coil and avoiding the overflow of the liquid. Specifically, after the conversion unit converts the capacitance change signal acquired by the acquisition unit into a digital signal to obtain an AD value, the AD value is compared with a preset condition by the judgment unit, and when the AD value is judged to meet the preset condition, that is, when the liquid is judged to overflow, the control unit sends a control signal to the controller of the magnetic excitation coil, so that the controller controls the magnetic excitation coil to reduce the heating power or controls the magnetic excitation coil to suspend heating. Preferably, the AD value is a voltage value.

In addition, according to the anti-overflow control system in the above technical solution provided by the present invention, the following additional technical features may also be provided:

In the foregoing technical solution, preferably, the determining unit specifically includes: the first receiving subunit is used for receiving the food material information; the first searching subunit is used for searching a first threshold corresponding to the food material information; and the first judgment subunit is used for judging whether the AD value is larger than a first threshold value.

because different edible materials, the conductivity coefficient of the liquid in the pot body is different, can influence the size of the capacitance value between the anti-overflow electrode slice and the liquid level, this technical scheme is received through first receiving subunit and is eaten material information, and compare AD value with the first threshold value corresponding with eating material information through first judgement subunit, judge whether to send control signal to the controller of magnetic excitation coil, can accurately judge the liquid level height condition of eating the material at present, be favorable to accurately adjusting magnetic excitation coil's heating power, avoid the internal liquid of pot to overflow.

in any of the above technical solutions, preferably, the determining unit specifically includes: the second receiving subunit is used for receiving the food material information; the second searching subunit is used for searching a second threshold corresponding to the food material information; the first calculating subunit is used for recording the change curve of the AD value and calculating a first derivative value AD' of the change curve at the current moment; and the second judgment subunit is used for judging whether the first derivative value AD' is larger than a second threshold value.

In the technical scheme, the change curve of the AD value is recorded through the first calculating subunit, the first derivative value AD ' of the change curve at the current moment is calculated, the first derivative value AD ' is compared with the second threshold value corresponding to the food material information through the second judging subunit, on one hand, different second threshold values can be selected for comparison according to different food materials, the accuracy of judging whether the liquid level is about to overflow is improved, on the other hand, the change range of the liquid level height can be intuitively obtained through first-order derivation of the change curve of the AD value, particularly, when the liquid obviously rolls and is about to overflow, the rising speed of the liquid level is rapidly accelerated, then, whether the liquid is about to overflow can be accurately judged according to the first derivative value AD ', and the magnetic exciting coil can be controlled to reduce the heating power or suspend heating in time.

in any of the above technical solutions, preferably, the determining unit specifically includes: a third receiving subunit, configured to receive the food material information; the third searching subunit is used for searching a third threshold corresponding to the food material information; the second calculating subunit is used for calculating a difference value delta AD between the AD value at the current moment and the AD value obtained last time; and the third judgment subunit is used for judging whether the difference value delta AD is greater than or equal to a third threshold value.

Due to different food materials, even if the liquid level rises to the same height, the AD value between the liquid level and the anti-overflow electrode plate changes differently; according to the technical scheme, the difference value between the AD value at the current moment and the AD value obtained last time, namely delta AD, is compared with the third threshold value corresponding to the food material information through the third judgment subunit, on one hand, the judgment errors caused by different food materials can be effectively avoided by selecting the third threshold value corresponding to the food materials for comparison, on the other hand, the influence caused by different food materials can be further reduced by calculating the difference value delta AD and comparing the difference value delta AD with the third threshold value, and the accuracy of judging whether the liquid level is about to overflow or not is improved.

A fourth aspect of the invention provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method according to any of the preceding claims when executing the computer program.

in the computer device provided by the present invention, when the processor executes the computer program stored in the memory, the steps of the anti-overflow control method according to any one of the above technical solutions can be implemented, so that all the beneficial technical effects of the anti-overflow control method are achieved, and are not described herein again.

A fifth aspect of the invention provides a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method according to any one of the preceding claims.

In the computer-readable storage medium provided by the present invention, when being executed by a processor, the computer program stored thereon can implement the steps of the anti-overflow control method according to any one of the above technical solutions, so that all the beneficial technical effects of the anti-overflow control method are achieved, and are not described herein again.

A sixth aspect of the present invention provides an induction cooker assembly comprising: the pot comprises a pot body and a pot cover, wherein the pot cover covers the pot body; the electromagnetic oven comprises a magnetic excitation coil and is used for heating a cooker; and the anti-overflow device of any one of the above technical schemes.

In this technical scheme, because the anti-overflow device in any one of the above technical schemes is provided, the beneficial effects of any one of the above technical schemes are further provided, which are not described herein again.

In the above technical solution, preferably, the pot cover is a glass pot cover or a metal pot cover.

in the technical scheme, the pot cover is preferably a glass pot cover, and can also be a metal pot cover, at the moment, the metal pot cover can cause certain influence on the capacitance between the liquid in the pot body and the anti-overflow electrode plate, and then the corresponding judgment standard needs to be adjusted to judge whether the liquid level overflows the pot body.

additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

the above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 shows a schematic construction of a spill guard according to an embodiment of the present invention;

FIG. 2 illustrates a spill control method according to a first embodiment of the present invention;

FIG. 3 illustrates a spill control method according to a second embodiment of the present invention;

FIG. 4 illustrates a spill prevention control method according to a third embodiment of the present invention;

FIG. 5 illustrates a spill prevention control method according to a fourth embodiment of the present invention;

FIG. 6 illustrates a spill control system according to a first embodiment of the present invention;

FIG. 7 illustrates a spill control system according to a second embodiment of the present invention;

FIG. 8 illustrates a spill control system according to a third embodiment of the present invention;

FIG. 9 illustrates a spill control system according to a fourth embodiment of the present invention;

Fig. 10 shows a schematic structural diagram of a computer device of an embodiment of the present invention.

wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:

10 pot covers, 12 anti-overflow electrode plates, 14 data acquisition and processing modules, 16 communication modules, 18 power supply modules, 20 pot cover handles, 22 threaded fasteners and 24 gaskets.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

the overfill prevention device and induction cooker assembly according to some embodiments of the present invention is described below with reference to fig. 1.

as shown in fig. 1, a first embodiment of the present invention provides an anti-overflow device for an induction cooker assembly, where the induction cooker assembly includes a pot and an induction cooker, the pot includes a pot cover 10 and a pot body, the induction cooker includes a magnetic excitation coil, and the anti-overflow device includes: the anti-overflow electrode slice 12 is arranged on the pot cover 10 or on the inner side wall of the pot body, the anti-overflow electrode slice 12 faces the inside of the pot body, and when the anti-overflow electrode slice 12 is arranged on the pot cover 10, the anti-overflow electrode slice 12 is arranged on one side of the pot cover 10 facing the outside of the pot body; a control device, comprising: the data acquisition and processing module 14 is electrically connected with the anti-overflow electrode plate 12 and is used for acquiring a capacitance change signal between the anti-overflow electrode plate 12 and the liquid level in the pot body and generating a control signal according to the capacitance change signal; and the communication module 16 is electrically connected with the data acquisition and processing module 14 and the controller of the magnetic excitation coil and is used for sending a control signal to the controller of the magnetic excitation coil, and the communication module 16 is a wireless communication module.

according to the anti-overflow device provided by the invention, the anti-overflow electrode plate 12 is arranged on the pot cover 10 or on the inner side wall of the pot body, and a capacitor is formed between the anti-overflow electrode plate 12 and the liquid level in the pot body, so that non-contact anti-overflow can be realized, and the problems that the edible safety is influenced and the probe is not easy to clean due to the fact that a probe and other structures are adopted to contact food materials are avoided. Through setting up controlling means, gather the electric capacity change signal and handle the electric capacity change signal through data acquisition and processing module 14, generate control signal, rethread communication module 16 sends this control signal to the controller of magnetic excitation coil, in order to control magnetic excitation coil, the intelligent control of anti-overflow has been realized on the one hand, on the other hand has realized the initiative early warning before the boiling overflows, be favorable to in time controlling magnetic excitation coil to reduce heating power or stop heating and prevent the overflow, and wireless communication module's being provided with does benefit to and realizes far away distance control, needn't complicated wiring alright transmit control signal to magnetic excitation coil's controller. Specifically, because magnetic excitation coil produces the alternating electric field in the electromagnetism stove, the metal pan can produce eddy current in the alternating electric field, and then the soup in the pot body contacts promptly with the pot body and connects the electricity, when the electromagnetism stove heating, when the liquid level boiling in the pot body rises, electric capacity between the two changes thereupon, gather electric capacity change signal through data acquisition and processing module 14, can in time judge whether the liquid in the pot body is about to overflow, wherein, electric capacity change signal, preferably current voltage value signal, of course, also can be for current value signal etc. can embody the innovation thinking that liquid level height changes all accords with this application.

Specifically, the data acquisition and processing module 14 may directly convert the acquired capacitance change signal into a digital signal, and compare the obtained AD value with a preset first threshold value to determine whether overflow is about to occur; the data acquisition and processing module 14 may also convert the acquired capacitance change signal into a digital signal, record an obtained change curve of the AD value, calculate a first derivative value AD 'of the change curve at the current time, and compare the AD' with a second threshold corresponding to the food material information to determine whether overflow is about to occur; the data acquisition and processing module 14 may also convert the acquired capacitance change signal into a digital signal, obtain an AD value, calculate a difference Δ AD between the AD value at the current time and the AD value obtained last time, and compare the difference Δ AD with a third threshold corresponding to the food material information to determine whether overflow is about to occur; thereby sending out a control signal to adjust the operating power of the magnetic excitation coil. Preferably, the control device further includes an instruction receiving module, configured to receive the food material information, so that the data collecting and processing module 14 selects a corresponding threshold according to the food material information, and compares the threshold with the AD value.

in addition, the data collecting and processing module 14 can be divided into a data collecting module and a data processing module, which are electrically connected to each other, and the communication module 16 can be combined with the data processing module to form a data processing and communication module.

In one embodiment of the present invention, preferably, as shown in fig. 1, when the anti-spill electrode sheet 12 is disposed on the pot lid 10, the anti-spill electrode sheet 12 is located at the top or edge of the pot lid 10.

In this embodiment, by arranging the anti-overflow electrode sheet 12 at the top or edge of the pot cover 10, on one hand, the pot cover 10 can be used to ensure that the anti-overflow electrode sheet 12 keeps a distance from the liquid level in the pot body, so as to prevent the liquid from contacting the anti-overflow electrode sheet 12 or the related conductive parts, and further prevent the capacitor structure from failing; on the other hand, the pot cover 10 is often curved and protrudes to the outside of the pot, and the anti-overflow electrode sheet 12 is more convenient to fix on the outside than on the inside, thereby improving the reliability of the product. Of course, the anti-overflow electrode sheet 12 may be disposed at any position on the pot lid 10, and preferably, the anti-overflow electrode sheet 12 is adhered or clamped on the pot lid 10.

in one embodiment of the present invention, preferably, as shown in fig. 1, the control means is located in the lid handle 20 of the pot.

In this embodiment, by disposing the control device in the lid handle 20, i.e. by covering the control device with the lid handle 20, the control device can be protected from the interference of the discharged steam without increasing the space occupied by the pot. Preferably, the lid handle 20 is disposed on the top or edge of the lid 10 or at any other location. At this time, preferably, the anti-overflow electrode plate 12 is disposed on the pot cover 10, so that the distance between the anti-overflow electrode plate 12 and the control device is shortened, and signals between the two can be transmitted accurately and timely.

In one embodiment of the present invention, it is preferable that the anti-spill electrode sheet 12 is provided on the inner sidewall of the pot body.

In this embodiment, through setting up anti-overflow electrode slice 12 on the inside wall of the pot body, convenience of customers uncaps the culinary art, need not the user and observes with the eye in real time, alright prevent that the internal liquid of pot is excessive.

in one embodiment of the invention, preferably, the control means is located in the pot handle of the pot.

In the embodiment, the control device is arranged in the pot body handle, so that the occupied space of the pot is reduced, and the control device is prevented from being interfered by steam discharged by the pot body. At this time, preferably, the anti-overflow electrode sheet 12 is disposed on the inner sidewall of the pot body, so that the distance between the anti-overflow electrode sheet 12 and the control device is shortened, and signals between the two are conveniently and accurately transmitted in time.

In one embodiment of the present invention, preferably, as shown in fig. 1, when the anti-spill electrode sheet 12 is disposed on the pot lid 10, the anti-spill electrode sheet 12 is located between the pot lid 10 and the pot lid handle 20.

In this embodiment, the anti-overflow electrode sheet 12 is clamped between the pot lid 10 and the pot lid handle 20, so that the installation stability of the anti-overflow electrode sheet 12 is improved while the anti-overflow electrode sheet 12 is conveniently installed. Preferably, the anti-overflow electrode slice 12 is directly attached to the pot cover handle 20, so that the connection distance between the anti-overflow electrode slice 12 and the control device is shortened as much as possible, and the stability of signal transmission is improved.

in one embodiment of the present invention, preferably, as shown in fig. 1, the anti-overflow electrode sheet 12 is provided with a first through hole; the pot cover handle 20 is provided with a threaded hole, and the threaded hole, the first through hole and the second through hole on the pot cover 10 are coaxial; the anti-overflow device still includes: and the threaded fastener 22, wherein the threaded fastener 22 passes through the second through hole and the first through hole in sequence and is matched with the threaded hole.

In this embodiment, the uniform threaded fastener 22 sequentially penetrates through the second through hole on the lid 10, the first through hole on the anti-overflow electrode piece 12 and the threaded hole on the lid handle 20 to connect the lid 10, the anti-overflow electrode piece 12 and the lid handle 20 together, so that on one hand, the connection firmness of the three is improved, and on the other hand, the assembly steps and the assembly parts are simplified, so that the three can be assembled together by once inserting through the uniform threaded fastener 22. Preferably, a shim 24 is added between the threaded fastener 22 and the flood electrode pad 12 to prevent wear to the flood electrode pad 12 during assembly. Preferably, the threaded fasteners 22 are screws or bolts.

In one embodiment of the present invention, the spill-proof electrode sheet 12 is preferably a metal electrode sheet.

In this embodiment, the anti-overflow electrode plate 12 is preferably a metal electrode plate, and has good conductivity, so that the capacitance change can be accurately reflected, and the liquid level rising height can be accurately determined to avoid overflow. Preferably, the anti-spill electrode plate 12 is a stainless steel electrode plate or an aluminum electrode plate.

In one embodiment of the present invention, the data acquisition and processing module 14 is preferably electrically connected to the anti-spill electrode sheet 12 via wires, metal clips, conductive tape, or conductive paste.

In this embodiment, the data collecting and processing module 14 may be electrically connected to the anti-overflow electrode sheet 12 through a wire, may also be electrically connected to the anti-overflow electrode sheet 12 through a metal spring, may also be electrically connected to the anti-overflow electrode sheet 12 through a conductive adhesive tape or a conductive paste, may also be electrically connected to the anti-overflow electrode sheet 14 through any combination of the above four connection methods, and may select an appropriate electrical connection method as required.

In one embodiment of the present invention, preferably, as shown in fig. 1, the control device further includes: and the power supply module 18 is electrically connected with the anti-overflow electrode plate 12, the data acquisition and processing module 14 and the communication module 16 and is used for supplying power to the anti-overflow electrode plate 12, the data acquisition and processing module 14 and the communication module 16.

In this embodiment, the control device further has a power supply module 18 electrically connected to the anti-spill electrode sheet 12, the data acquisition and processing module 14, and the communication module 16, respectively, to supply power to the three. Because the anti-overflow electrode plate 12 and the data acquisition and processing module 14 are also in an electrically connected state, the power supply module 18 can be directly electrically connected with the anti-overflow electrode plate 12, and further indirectly electrically connected with the data acquisition and processing module 14.

In one embodiment of the present invention, the power supply module 18 is preferably a battery or a solar cell or a wireless charging module.

In this embodiment, the power supply module 18 can supply power for a battery, and also can supply power for a solar battery, and in this case, it is preferable to add a solar energy absorption plate, which can be disposed on the upper surface of the pot cover 10, or on the upper surface or the side surface of the pot cover handle 20, or on the outer side surface of the pot body, so as to save energy and protect environment, and simultaneously, it is beneficial to ensure long-term power connection among the anti-overflow electrode sheet 12, the data acquisition and processing module 14, and the communication module 16. The power supply module 18 can also be a wireless charging module, and an alternating magnetic field generated by a magnetic excitation coil of the induction cooker can be used for charging the wireless charging module, so that the induction cooker is favorably ensured to be in a power-on state all the time among the anti-overflow electrode plate 12, the data acquisition and processing module 14 and the communication module 16 due to continuous charging of the wireless charging module in the use process, and the control device cannot fail due to insufficient power supply.

A second aspect embodiment of the invention provides an overfill prevention control method for an overfill prevention device as in any of the above embodiments.

As shown in fig. 2, the spill prevention control method of the first embodiment of the present invention includes:

s102, collecting a capacitance change signal;

S104, converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value;

s106, judging whether the AD value meets a preset condition, if so, turning to S108, and if not, returning to S106;

And S108, sending a control signal to adjust the operating power of the magnetic excitation coil.

As shown in fig. 3, an overfill prevention control method according to a second embodiment of the present invention comprises:

S202, collecting a capacitance change signal;

s204, converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value;

S206, receiving food material information;

S208, searching a first threshold corresponding to the food material information;

S210, judging whether the AD value is larger than a first threshold value, if so, turning to S212, and if not, returning to S210;

And S212, sending a control signal to adjust the operating power of the magnetic excitation coil.

because different edible materials and the conductivity coefficient of the liquid in the pot body are different, the size of the capacitance value between the anti-overflow electrode plate and the liquid level can be influenced, the embodiment judges whether to send a control signal to the controller of the magnetic excitation coil or not by receiving the edible material information and comparing the AD value with the first threshold value corresponding to the edible material information, the liquid level height condition of the current edible material can be accurately judged, the heating power of the magnetic excitation coil can be accurately adjusted, and the overflow of the liquid in the pot body can be avoided.

As shown in fig. 4, an overfill prevention control method of a third embodiment of the present invention comprises:

s302, collecting a capacitance change signal;

s304, converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value;

s306, receiving food material information;

S308, searching a second threshold corresponding to the food material information;

s310, recording the change curve of the AD value, and calculating a first derivative value AD' of the change curve at the current moment;

s312, judging whether the first derivative value AD' is larger than a second threshold value, if so, turning to S314, and if not, returning to S312;

and S314, sending out a control signal to adjust the operating power of the magnetic excitation coil.

in this embodiment, by recording a variation curve of the AD value and calculating a first derivative value AD ' of the variation curve at the current time, the first derivative value AD ' is compared with a second threshold corresponding to the food material information, on one hand, different second thresholds can be selected for comparison according to different food materials, so that accuracy of judging whether the liquid level is about to overflow is improved, on the other hand, by first-order derivation of the variation curve of the AD value, a variation range of the liquid level height can be intuitively obtained, especially when the liquid obviously rolls about to overflow, a rising speed of the liquid level is rapidly increased, and then whether the liquid is about to overflow can be accurately judged according to the first derivative value AD ', so that the magnetic excitation coil can be controlled to reduce heating power or suspend heating in time. Preferably, the first derivative value AD 'is always greater than or equal to a first preset value, the AD value being related to the voltage in the specific circuit, not a fixed value, while a small roll of liquid before boiling can cause a variation in the AD value, and therefore by limiting AD' to be greater than or equal to a smaller value, i.e. the first preset value, it is possible to filter the noise of the small roll, preferably the first preset value is 30 or 100.

in one embodiment of the present invention, preferably, the second threshold is equal to or greater than a peak value of the first derivative value AD' of any food material before boiling.

In this embodiment, the second threshold is greater than or equal to the peak value of the first derivative value AD' of any food material before boiling, so as to effectively prevent the occurrence of misjudgment and avoid misjudgment caused by different food materials with different rising amplitudes before boiling.

As shown in fig. 5, an overfill prevention control method of a fourth embodiment of the present invention comprises:

S402, collecting a capacitance change signal;

s404, converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value;

S406, receiving food material information;

s408, searching a third threshold corresponding to the food material information;

s410, calculating a difference value delta AD between the AD value at the current moment and the AD value obtained last time;

S412, judging whether the difference value delta AD is larger than or equal to a third threshold value, if so, turning to S414, and if not, returning to S412;

And S414, sending out a control signal to adjust the operation power of the magnetic excitation coil.

Due to different food materials, even if the liquid level rises to the same height, the AD value between the liquid level and the anti-overflow electrode plate changes differently; furthermore, in the embodiment, the difference between the AD value at the current time and the AD value obtained last time, that is, Δ AD, is compared with the third threshold corresponding to the food material information, on one hand, by selecting the third threshold corresponding to the food material for comparison, a judgment error caused by different food materials can be effectively avoided, on the other hand, by calculating the difference Δ AD and comparing the difference Δ AD with the third threshold, the influence caused by different food materials can be further reduced, and the accuracy of judging whether the liquid level is about to overflow or not can be improved.

a third aspect embodiment of the present invention provides an overfill prevention control system for an overfill prevention device as in any of the above embodiments.

As shown in fig. 6, an anti-spill control system 500 according to a first embodiment of the present invention includes:

An acquisition unit 502 for acquiring a capacitance change signal;

A conversion unit 504, configured to convert the capacitance change signal from an analog signal to a digital signal to obtain an AD value;

A judging unit 506, configured to judge whether the AD value satisfies a preset condition;

and the control unit 508 is used for sending a control signal to adjust the operating power of the magnetic excitation coil when the AD value meets a preset condition.

Because the change of the liquid level in the pot body can be accompanied with the change of the capacitance between the anti-overflow electrode plate and the liquid level, and then the height condition of the liquid level can be reflected in time by acquiring a capacitance change signal, so that the operation power of the magnetic excitation coil can be adjusted timely and accurately according to the change, and the liquid overflow is avoided. Specifically, after the conversion unit 504 converts the capacitance change signal acquired by the acquisition unit into a digital signal to obtain an AD value, the determination unit 506 compares the AD value with a preset condition, and when the AD value meets the preset condition, that is, when it is determined that the liquid is about to overflow, the control unit 508 sends a control signal to the controller of the magnetic excitation coil, so that the controller controls the magnetic excitation coil to reduce the heating power or controls the magnetic excitation coil to suspend heating. Preferably, the AD value is a voltage value.

As shown in fig. 7, an anti-spill control system 600 according to a second embodiment of the present invention includes:

An acquisition unit 602, configured to acquire a capacitance change signal;

a conversion unit 604, configured to convert the capacitance variation signal from an analog signal to a digital signal to obtain an AD value;

A determining unit 606, configured to determine whether the AD value meets a preset condition, where the determining unit 606 specifically includes:

a first receiving sub-unit 6062 for receiving the food material information;

a first search subunit 6064 configured to search for a first threshold corresponding to the food material information;

a first judgment subunit 6066 for judging whether the AD value is greater than a first threshold;

And the control unit 608 is used for sending a control signal to adjust the operating power of the magnetic excitation coil when the AD value is larger than the first threshold value.

Because different edible materials, the conductivity coefficient of the liquid in the pot body is different, can influence the size of the capacitance value between the anti-overflow electrode sheet and the liquid level, this embodiment receives edible material information through first receiving subunit 6062, and compare the AD value with the first threshold value corresponding to edible material information through first judging subunit 6066, judge whether to send control signal to the controller of magnetic excitation coil, can accurately judge the liquid level height condition of the current edible material, be favorable to accurately adjusting the heating power of magnetic excitation coil, avoid the liquid in the pot body to overflow.

as shown in fig. 8, an anti-overflow control system 700 according to a third embodiment of the present invention includes:

An acquisition unit 702 for acquiring a capacitance change signal;

A conversion unit 704, configured to convert the capacitance variation signal from an analog signal to a digital signal, so as to obtain an AD value;

The determining unit 706 is configured to determine whether the AD value meets a preset condition, where the determining unit 706 specifically includes:

A second receiving subunit 7062, configured to receive the food material information;

a second searching subunit 7064, configured to search for a second threshold corresponding to the food material information;

the first calculating subunit 7066 is configured to record a change curve of the AD value, and calculate a first derivative value AD' of the change curve at the current time;

a second determining subunit 7068, configured to determine whether the first derivative value AD' is greater than a second threshold;

and the control unit 708 is used for sending a control signal to adjust the operating power of the magnetic excitation coil when the first derivative value AD' is larger than the second threshold value.

in this embodiment, the first calculating subunit 7066 records the variation curve of the AD value, and calculates the first derivative value AD ' of the variation curve at the current time, and the second determining subunit 7068 compares the first derivative value AD ' with the second threshold corresponding to the food material information, on one hand, different second thresholds can be selected according to different food materials to perform comparison, so as to improve the accuracy of determining whether the liquid level is about to overflow, and on the other hand, by performing first-order derivation on the variation curve of the AD value, the variation range of the liquid level height can be intuitively obtained, especially when the liquid obviously rolls about to overflow, the liquid level rising speed is sharply increased, so that whether the liquid is about to overflow can be accurately determined according to the first derivative value AD ', so as to control the magnetic exciting coil to reduce the heating power or suspend heating in time. Preferably, the first derivative value AD 'is always greater than or equal to a first preset value, the AD value being related to the voltage in the specific circuit, not a fixed value, while a small roll of liquid before boiling can cause a variation in the AD value, and therefore by limiting AD' to be greater than or equal to a smaller value, i.e. the first preset value, it is possible to filter the noise of the small roll, preferably the first preset value is 30 or 100.

as shown in fig. 9, an anti-spill control system 800 according to a fourth embodiment of the present invention includes:

an acquisition unit 802 for acquiring a capacitance change signal;

The conversion unit 804 is used for converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value;

The determining unit 806 is configured to determine whether the AD value meets a preset condition, where the determining unit 806 specifically includes:

a third receiving subunit 8062, configured to receive the food material information;

A third searching subunit 8064, configured to search for a third threshold corresponding to the food material information;

A second calculating subunit 8066, configured to calculate a difference Δ AD between the AD value at the current time and the AD value obtained last time;

A third determining subunit 8068, configured to determine whether the difference Δ AD is greater than or equal to a third threshold;

And the control unit 808 is used for sending a control signal to adjust the operating power of the magnetic excitation coil when the difference value delta AD is larger than or equal to a third threshold value.

due to different food materials, even if the liquid level rises to the same height, the AD value between the liquid level and the anti-overflow electrode plate changes differently; furthermore, in this embodiment, the third determining subunit 8068 compares the difference between the AD value at the current time and the AD value obtained last time, that is, Δ AD, with a third threshold corresponding to the information of the food material, on one hand, by selecting and comparing the third threshold corresponding to the food material, a determination error caused by different food materials can be effectively avoided, and on the other hand, by calculating and comparing the difference Δ AD with the third threshold, the influence caused by different food materials can be further reduced, and the accuracy of determining whether the liquid level is about to overflow is improved.

as shown in fig. 10, a fourth aspect of the present invention provides a computer device 9, which includes a memory 92, a processor 94 and a computer program stored on the memory 92 and operable on the processor 94, wherein the processor 94, when executing the computer program, implements the steps of the method according to any one of the above embodiments.

In the computer device according to the present invention, when the processor 94 executes the computer program stored in the memory 92, the steps of the anti-overflow control method according to any one of the above embodiments can be implemented, so that all the beneficial technical effects of the anti-overflow control method are achieved, and are not described herein again.

a fifth aspect embodiment of the invention provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the method as described in any one of the above embodiments.

the computer-readable storage medium provided by the present invention, when being executed by a processor, can implement the steps of the anti-overflow control method described in any one of the above embodiments, so that all the advantageous technical effects of the anti-overflow control method are achieved, and details are not described herein again.

As shown in fig. 1, a sixth aspect embodiment of the present invention provides an induction cooker assembly, comprising: a pot including a pot body (not shown in the drawings) and a pot cover 10, the pot cover 10 covering the pot body; an induction cooker (not shown in the figure) including a magnetic field coil for heating a pot; and an overfill prevention device as in any of the above embodiments.

the electromagnetic oven assembly provided by the invention has the advantages of any of the above embodiments due to the overflow prevention device in any of the above embodiments, which are not repeated herein.

in one embodiment of the present invention, preferably, the lid 10 is a glass lid or a metal lid.

In this embodiment, the pot cover 10 is preferably a glass pot cover, but may also be a metal pot cover, and at this time, since the metal pot cover may have a certain influence on the capacitance between the liquid in the pot body and the anti-overflow electrode sheet 12, it is further necessary to adjust the corresponding determination standard to determine whether the liquid level overflows the pot body.

in the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an anti-overflow device for electromagnetism stove subassembly, a serial communication port, electromagnetism stove subassembly includes pan and electromagnetism stove, the pan includes the pot cover and the pot body, the electromagnetism stove includes magnetic excitation coil, anti-overflow device includes:

the anti-overflow electrode plate is arranged on the pot cover or the inner side wall of the pot body, faces towards the inside of the pot body, and is arranged on one side of the pot cover, which faces towards the outside of the pot body, when the anti-overflow electrode plate is arranged on the pot cover;

A control device, comprising:

the data acquisition and processing module is electrically connected with the anti-overflow electrode plate and is used for acquiring a capacitance change signal between the anti-overflow electrode plate and the liquid level in the pot body and generating a control signal according to the capacitance change signal;

and the communication module is electrically connected with the data acquisition and processing module and the controller of the magnetic excitation coil and used for sending the control signal to the controller of the magnetic excitation coil, and the communication module is a wireless communication module.

2. The overfill prevention device of claim 1,

When the anti-overflow electrode slice is arranged on the pot cover, the anti-overflow electrode slice is positioned at the top or the edge of the pot cover.

3. The overfill prevention device of claim 1,

When the anti-overflow electrode plate is arranged on the pot cover, the control device is positioned in a pot cover handle of the pot;

When the anti-overflow electrode plate is arranged on the inner side wall of the pot body, the control device is positioned in the pot body handle of the pot.

4. The overfill prevention device of claim 3,

When the anti-overflow electrode slice is arranged on the pot cover, the anti-overflow electrode slice is positioned between the pot cover and the pot cover handle.

5. The overfill prevention device of claim 4,

the anti-overflow electrode plate is provided with a first through hole;

the pot cover handle is provided with a threaded hole, and the threaded hole, the first through hole and the second through hole on the pot cover are coaxial;

The anti-overflow device still includes:

And the threaded fastener sequentially penetrates through the second through hole and the first through hole and is matched with the threaded hole.

6. the overfill prevention device of any of claims 1-5,

the anti-overflow electrode slice is a metal electrode slice.

7. The overfill prevention device of claim 6,

The anti-overflow electrode slice is a stainless steel electrode slice or an aluminum electrode slice.

8. The overfill prevention device of any of claims 1-5,

The data acquisition and processing module is electrically connected with the anti-overflow electrode slice through a lead, a metal elastic sheet, a conductive adhesive tape or conductive paste.

9. the overfill prevention device of any of claims 1-5, wherein said control device further comprises:

And the power supply module is electrically connected with the anti-overflow electrode plate, the data acquisition and processing module and the communication module and is used for supplying power to the anti-overflow electrode plate, the data acquisition and processing module and the communication module.

10. the overfill prevention device of claim 9,

the power supply module is a battery or a solar battery or a wireless charging module.

11. An overfill prevention control method for an overfill prevention device as recited in any of claims 1-10, comprising:

collecting a capacitance change signal;

converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value;

judging whether the AD value meets a preset condition or not;

and when the AD value meets the preset condition, sending a control signal to adjust the operating power of the magnetic excitation coil.

12. the spill prevention control method according to claim 11, wherein the step of determining whether the AD value satisfies a preset condition specifically includes:

Receiving food material information;

Searching a first threshold corresponding to the food material information;

Determining whether the AD value is greater than the first threshold.

13. The spill prevention control method according to claim 11, wherein the step of determining whether the AD value satisfies a preset condition specifically includes:

receiving food material information;

Searching a second threshold corresponding to the food material information;

recording the change curve of the AD value, and calculating a first derivative value AD' of the change curve at the current moment;

Determining whether the first derivative value AD' is greater than the second threshold value.

14. The spill prevention control method according to claim 13, wherein the second threshold value is equal to or greater than a peak value of the first derivative value AD' of any food material before boiling.

15. the spill prevention control method according to claim 11, wherein the step of determining whether the AD value satisfies a preset condition specifically includes:

receiving food material information;

searching a third threshold corresponding to the food material information;

Calculating the difference value delta AD between the AD value at the current moment and the AD value obtained last time;

And judging whether the difference value delta AD is larger than or equal to the third threshold value.

16. an overfill prevention control system for an overfill prevention device as recited in any of claims 1-10, comprising:

the acquisition unit is used for acquiring capacitance change signals;

the conversion unit is used for converting the capacitance change signal from an analog signal to a digital signal to obtain an AD value;

The judging unit is used for judging whether the AD value meets a preset condition or not;

And the control unit is used for sending a control signal to adjust the operating power of the magnetic excitation coil when the AD value meets the preset condition.

17. the overfill prevention control system of claim 16, wherein said determining unit comprises:

The first receiving subunit is used for receiving the food material information;

The first searching subunit is used for searching a first threshold corresponding to the food material information;

A first judging subunit, configured to judge whether the AD value is greater than the first threshold.

18. The overfill prevention control system of claim 16, wherein said determining unit comprises:

the second receiving subunit is used for receiving the food material information;

the second searching subunit is used for searching a second threshold corresponding to the food material information;

the first calculating subunit is used for recording a change curve of the AD value and calculating a first derivative value AD' of the change curve at the current moment;

a second determining subunit, configured to determine whether the first derivative value AD' is greater than the second threshold.

19. The spill-proof control system of claim 18, wherein the second threshold value is equal to or greater than a peak value of the first derivative value AD' of any food material before boiling.

20. The overfill prevention control system of claim 16, wherein said determining unit comprises:

A third receiving subunit, configured to receive the food material information;

The third searching subunit is used for searching a third threshold corresponding to the food material information;

the second calculating subunit is used for calculating a difference value delta AD between the AD value at the current moment and the AD value obtained last time;

And a third judgment subunit, configured to judge whether the difference Δ AD is greater than or equal to the third threshold.

21. a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 11 to 15 when executing the computer program.

22. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 11 to 15.

23. An induction cooker assembly, comprising:

A pot including a pot body and a pot cover, the pot cover covering the pot body;

The electromagnetic oven comprises a magnetic excitation coil and is used for heating the cookware; and

The overfill prevention device of any of claims 1-10.

24. The induction cooker assembly of claim 23,

the pot cover is a glass pot cover or a metal pot cover.