CN109419316B - Liquid overflow detection method and device, pot and electromagnetic heating assembly - Google Patents
Liquid overflow detection method and device, pot and electromagnetic heating assembly Download PDFInfo
- Publication number
- CN109419316B CN109419316B CN201810267097.0A CN201810267097A CN109419316B CN 109419316 B CN109419316 B CN 109419316B CN 201810267097 A CN201810267097 A CN 201810267097A CN 109419316 B CN109419316 B CN 109419316B
- Authority
- CN
- China
- Prior art keywords
- liquid
- overflow
- air pressure
- pressure signal
- pot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/56—Preventing boiling over, e.g. of milk
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/081—Arrangement or mounting of control or safety devices on stoves
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
Abstract
The invention provides a liquid overflow detection method and device, a cooker and an electromagnetic heating assembly, wherein the liquid overflow detection method comprises the following steps: generating an air pressure signal according to the air pressure state in the container in the heating process of the liquid in the container covered with the cover plate; and judging whether the liquid is in a state to be overflowed or not according to the variation trend of the air pressure signal. The invention can accurately and reliably detect the liquid overflow while ensuring that the liquid in the pot is cooked thoroughly, thereby effectively preventing the liquid in the pot from overflowing.
Description
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to a liquid overflow detection method and device, a cooker and an electromagnetic heating assembly.
Background
With the rapid development of socioeconomic and scientific technologies, time is the most valuable resource for people, and people need to pay for a certain time when cooking as a necessary life base which is not available for people, so that the cooking efficiency becomes the focus of people's needs and concerns, especially for liquid foods such as porridge or soup. The high power characteristic of the induction cooker makes the induction cooker a preferred device for cooking porridge or soup. However, although the process of cooking porridge or soup with an electromagnetic oven is relatively fast, the soup can be boiled within several minutes to more than ten minutes or twenty minutes, and in the whole process of cooking porridge or soup, a user needs to often go to the electromagnetic oven to see whether the soup is boiled or not, and if the soup is not boiled, the user continues to boil the soup; if the soup is boiled, the power of the electromagnetic oven is manually reduced to enable the electromagnetic oven to stew the soup or porridge with lower power and avoid overflowing. Therefore, the user is bound to be wasted and troubled by great time cost, and the user cannot be concentrated on other things.
At present, temperature sensing devices are already arranged in the electromagnetic ovens on the market, but because the temperature sensing devices are only limited in the contents of the electromagnetic ovens, the overflow of liquid in a pot arranged on the electromagnetic ovens cannot be accurately prevented, only rough temperature control can be performed, but the rough temperature control still cannot ensure that the liquid in the pot cannot overflow when a user is not in the pot, and the safety risk that the electromagnetic ovens are improperly used exists.
Therefore, how to design a method for accurately detecting the overflow of the liquid while ensuring that the liquid in the pot is cooked is a problem to be solved urgently.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a liquid overflow detection method and device, a pot and an electromagnetic heating assembly, which can accurately and reliably detect liquid overflow while ensuring that the liquid in the pot is cooked thoroughly, and further can effectively prevent the liquid in the pot from overflowing.
In order to solve the technical problems, the invention provides the following technical scheme:
in a first aspect, the present invention provides a liquid overflow detection method, including:
generating an air pressure signal according to the air pressure state in the container in the heating process of the liquid in the container covered with the cover plate;
and judging whether the liquid is in a state to be overflowed or not according to the variation trend of the air pressure signal.
Further, a pressure sensor is used to generate a pressure signal as a pressure signal according to the pressure state in the container, and the pressure magnitude of the pressure signal indicates the pressure intensity.
Further, the liquid overflow detection method further comprises:
and sending an anti-overflow instruction to a heating device for heating the liquid, so that the heating device changes the heating power of the heating device according to the anti-overflow instruction.
Further, the determining whether the liquid is in a state to be overflowed according to the variation trend of the air pressure signal includes:
generating an air pressure change curve according to the change trend of the air pressure signal;
and judging whether the liquid is in a state to be overflowed or not based on the air pressure change curve.
Further, the determining whether the liquid is in the to-be-spilled state based on the air pressure variation curve includes:
judging whether the air pressure change curve is matched with an overflow interval in a pre-acquired standard overflow signal curve, wherein the standard overflow signal curve is used for displaying the corresponding relation between the value of the air pressure signal of the liquid and the time, and the standard overflow signal curve is marked with the overflow interval;
and if so, determining that the liquid enters a to-be-overflowed state.
Further, the overflow interval is an interval range between a first air pressure signal value in the container corresponding to when the liquid bubbles in the heated test liquid first start to overflow and a second air pressure signal value in the container when the liquid bubbles in the liquid first push open the cover plate of the container.
Further, the air pressure variation curve is a curve obtained according to the air pressure signal from the identification starting time point to the current time point.
Further, the identification starting time point is a time point when heating is started, or a time point after a second time period elapses since heating is started, or a time point when the air pressure signal satisfies the identification starting condition.
In a second aspect, the present invention provides a liquid overflow detecting device, comprising:
the air pressure signal detection module is used for generating an air pressure signal according to the air pressure state in the container in the heating process of the liquid in the container covered with the cover plate;
and the to-be-overflowed state judging module is used for judging whether the liquid is in the to-be-overflowed state or not according to the change trend of the air pressure signal.
In a third aspect, the present invention provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the liquid overflow detection method when executing the program.
In a fourth aspect, 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 liquid overflow detection method.
In a fifth aspect, the invention provides a pot, wherein the pot is provided with the liquid overflow detection device.
Further, the pan includes the pot body and pot cover, and is corresponding, liquid spills over detection device and sets up on the pot cover.
In a sixth aspect, the present invention provides an electromagnetic heating assembly, comprising: heating device, and, the pan.
Furthermore, a controller and a second wireless transceiver unit which are in communication connection are arranged in the heating device;
the second wireless transceiver unit is in communication connection with the liquid overflow detection device;
the controller is used for receiving an anti-overflow instruction sent by the liquid overflow detection device through the second wireless receiving and sending unit and changing heating power according to the anti-overflow instruction.
Further, the heating device is an induction cooker.
According to the technical scheme, the liquid overflow detection method provided by the invention comprises the following steps: generating an air pressure signal according to the air pressure state in the container in the heating process of the liquid in the container covered with the cover plate; judging whether the liquid is in a state to be overflowed or not according to the variation trend of the air pressure signal; can be when guaranteeing that liquid is boiled in the pan, accurately and reliably spill over liquid and detect, and then can effectively prevent that the liquid in the pan from spilling over, avoid the electromagnetism stove to use improper safe and have left the trouble, also improved the intelligent degree that uses the electromagnetism stove to cook, and then improved user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a liquid overflow detection method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of an embodiment of the liquid overflow detection method of the present invention including step 500;
FIG. 3 is a graphical illustration of a standard overflow signal of the present invention;
FIG. 4 is a graphical illustration of an overflow signal identifying an overflow interval in accordance with the present invention;
FIG. 5 is a schematic structural diagram of a liquid overflow detection device according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device in a third embodiment of the present invention;
fig. 7 is a schematic structural view of a cooker in a fifth embodiment of the invention;
fig. 8 is a schematic structural view of an electromagnetic heating assembly in a sixth embodiment of the present invention;
wherein, 1-a pot body; 2-pot cover; 3-a controller; 4-a barometric sensor; 5-a first radio transceiver unit; 6-a heating device; 7-an induction cooker; 71-a heating coil; 72-IGBT drive switch; 73-a microcontroller; 74-second radio.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Aiming at the problems in the prior art, the invention provides a liquid overflow detection method and device, a cooker and an electromagnetic heating assembly. It can be understood that the liquid overflow detection method according to the embodiment of the present invention is applicable to various cookers and heating devices for heating the cookers, wherein the heating devices particularly refer to induction cookers, electric kettles, and the like, and is also applicable to cooking appliances in which the cookers and the heating devices are integrated and disposed in a single body, such as electric woks and the like; when the cooking utensil with the heating function is used for boiling water, cooking soup, cooking porridge and the like, a vessel filled with liquid is placed on the cooking utensil for heating, and the heated liquid comprises water, oil, soup or other liquid substances. The process that the liquid is heated to boiling in the vessel is a process that the liquid is gradually changed to gas, liquid drops which are continuously close to a heating source are vaporized in the heating process of the liquid, formed bubbles rise in water, and the bubbles break and vibrate when rising to the liquid level. Usually, during the heating process of the liquid, a plurality of small liquid drops are vaporized to form small liquid bubbles which rise and break. When the liquid boils, a large number of liquid droplets are vaporized, and large bubbles are formed and rise and break. The formation, rise and rupture of these bubbles all cause pressure variations, which have a certain measurable law and can be detected by a sensor, and generate an electrical signal according to the pressure variations of the liquid. The liquid overflow detection method provided by the invention can accurately and effectively prevent the liquid in the pot from overflowing while ensuring that the liquid in the pot is cooked, and the judgment on the overflow process is accurate and reliable, so that the safety risk of improper use of the induction cooker is avoided, the intelligent degree of cooking by applying the induction cooker is also improved, and the application safety is improved, and the user experience is improved. The present invention will be explained in detail below by way of first to sixth embodiments.
An embodiment of the present invention provides a specific implementation of a liquid overflow detection method, and referring to fig. 1, the liquid overflow detection method specifically includes the following steps:
step 100: during heating of a liquid in a container covered with a cover plate, an air pressure signal is generated according to an air pressure state in the container.
In step 100, the liquid overflow detection device continuously detects a gas pressure signal of the heated liquid in the container covered with the cover plate, and generates a gas pressure change curve of the heated liquid according to the gas pressure signal. It can be understood that the liquid overflow detection device can obtain the air pressure signal of the heated liquid detected by the air pressure detection device by controlling the air pressure detection device for detecting the air pressure signal of the heated liquid in the container, and in addition, the liquid overflow detection device can also be integrated with an air pressure detection function to directly detect the air pressure signal of the heated liquid in the container.
The air pressure detection device mentioned in this embodiment may specifically be an air pressure sensor, and a main sensing element of the air pressure sensor may be a thin film sensitive to the intensity of air pressure and a thimble control, where the thin film is an air pressure sensing surface of the air pressure sensor, and in terms of a circuit, the air pressure sensor is connected to a flexible resistor; when the pressure of the detected gas is reduced or increased, the film deforms to drive the thimble, and the resistance value of the resistor is changed; the resistance value of the resistor changes, 0-5V signal voltage is obtained from a sensing element and is received by a data acquisition unit through A/D conversion, then the data acquisition unit transmits the result to a liquid overflow detection device, namely a singlechip and the like in a proper form, the main part of the air pressure sensor can be a variable-capacity silicon diaphragm box, when the external atmospheric pressure of the variable-capacity silicon diaphragm box changes, an ejector pin of the air pressure sensor acts, and the single-crystal silicon diaphragm box elastically deforms along with the movement of the ejector pin, so that the capacitance of the silicon diaphragm box parallel plate capacitor changes.
In addition, in a specific example, the air pressure sensor may be disposed on a lower surface of the pot cover, and the non-gas pressure intensity sensing surface of the air pressure sensor is fixedly connected with the lower surface of the cooker cover, so that when the cooker cover is placed on the cooker body, the gas pressure intensity sensing surface of the gas pressure sensor is arranged opposite to the inner part of the pot body, so that the gas pressure intensity sensing surface of the gas pressure sensor can directly and accurately acquire the change of the pressure in the pot, meanwhile, a hole can be arranged on the lower surface of the cooker cover, the air pressure sensor is fixedly arranged in the hole, and the air pressure sensing surface of the air pressure sensor is arranged at a position close to the hole, in a preferred embodiment, the gas pressure sensing surface of the gas pressure sensor can be arranged right above the hole, when the cooker cover is placed on the cooker body, the gas pressure sensing surface of the gas pressure sensor can directly obtain the change of the gas pressure in the cooker body through the hole.
It can be understood that the container and the heating device described in the present embodiment may refer specifically to a pot and an induction cooker for heating the pot, respectively, and the liquid therein may refer specifically to liquid food such as water, porridge or soup.
Step 200: and judging whether the liquid is in a state to be overflowed or not according to the variation trend of the air pressure signal.
In step 200, the variation trend of the air pressure signal is obtained according to the air pressure signal from the identification starting time point to the current time point, and the identification starting time point is a time point at which heating starts, or a time point after a second time period elapses since heating starts, or a time point at which the air pressure signal satisfies the identification starting condition. In the above description, the operation of continuously detecting the air pressure signal of the heated liquid may occur when the heating device is just started and heats the container, or may occur after the heating device is started for a period of time, but the period of time described herein should not exceed the time period for the liquid in the container to start generating liquid bubbles, for example, if the developer knows that the time for starting generating liquid bubbles in the liquid is 3 minutes after the heating device is started according to the actual experimental result, the period of time may be set to be less than 3 minutes, for example, 30 seconds or 1 minute, so that the work consumption of the executing device for detecting the operation may be reduced, the service life of the executing device may be prolonged, and the accuracy of the detection may also be ensured.
From the above description, it can be known that the liquid overflow detection method provided by the embodiment of the invention can accurately and reliably judge the overflow process while ensuring that the liquid in the pot is cooked, so that the safety risk of improper use of the induction cooker is avoided, the intelligent degree of cooking by using the induction cooker is also improved, and further the user experience is improved.
In one embodiment, an air pressure sensor is used to generate an electrical signal as an air pressure signal according to the air pressure state of the liquid, and the voltage magnitude of the air pressure signal indicates the air pressure intensity.
It can be understood that the controller in the liquid overflow detecting device controls the air pressure sensor to continuously detect the air pressure signal of the heated liquid in the container according to the starting signal received from the heating device for heating the container, and generates the air pressure change curve in real time according to the air pressure signal detected by the air pressure sensor, and the air pressure sensor is connected with the controller and arranged on the cover plate.
In one embodiment, referring to fig. 2, if the liquid is determined to be in the overflow state in step 200 according to the variation trend of the air pressure signal, step 200 of the liquid overflow detection method of the present invention further includes the following steps:
step 300: and sending an anti-overflow instruction to a heating device for heating the liquid, so that the heating device changes the heating power of the heating device according to the anti-overflow instruction.
In step 300, after the liquid overflow detection device determines that the liquid is in the to-be-overflowed state, the liquid overflow detection device first sends the overflow prevention instruction to the heating device, and the heating device receives the overflow prevention instruction and changes the heating power of the heating device according to the overflow prevention instruction, so that the cover plate of the container is not pushed open by the liquid bubbles while the container is continuously heated.
As can be seen from the above description, the liquid overflow detection method provided by the embodiments of the present invention can accurately and effectively prevent the liquid in the pot from overflowing while ensuring that the liquid in the pot is cooked, and provides a simple and portable control manner through the transmission of the communication information, so that the container and the heating device can be used together without affecting their independent use.
In one embodiment, the step 200 of the liquid overflow detection method of the present invention specifically includes the following steps:
step 201: generating an air pressure change curve according to the change trend of the air pressure signal;
step 202: and judging whether the liquid is in a state to be overflowed or not based on the air pressure change curve.
It can be understood that, if the container is provided with a pot cover, the air pressure change curve is used for representing the air pressure signal of the liquid in the container in real time in the process that liquid bubbles of the liquid in the container begin to overflow outwards until the pot cover is opened, and the subsequent process that the pot cover falls down and repeated liquid bubbles begin to overflow outwards until the pot cover is opened, the abscissa of the overflow signal curve is the detection time, and the ordinate of the overflow signal curve is the air pressure signal. Referring to fig. 4, in the heating process, the pressure variation curve collected in real time continuously extends along with time, when the pressure variation curve starts to fall to a preset point 1 after reaching the highest point, the first preset condition is met, the boiling of the liquid is determined, if the pressure variation curve continues to be heated, and when the pressure variation curve continues to fall to a preset point 2, the second preset condition is met, and the liquid is determined to be in a violent boiling state.
Step 202 specifically includes the following:
step 202 a: and judging whether the air pressure change curve is matched with an overflow interval in a pre-acquired standard overflow signal curve, and if so, confirming that the liquid is in a state to be overflowed.
In step 202a, the standard overflow signal curve is used to display a corresponding relationship between a value of an air pressure signal of the liquid and time, and an overflow interval is marked in the standard overflow signal curve, where the overflow interval is an interval range between a first air pressure signal value corresponding to a time when a liquid bubble in the heated test liquid first begins to overflow and a second air pressure signal value when the liquid bubble in the liquid first pushes open the cover plate of the container.
In the above description, the standard overflow signal curve is used to represent the air pressure signal of the liquid in the container in real time during the process that the liquid bubbles in the liquid in the container start to overflow outwards until the pot cover is opened, and the subsequent process that the pot cover falls down and the repeated liquid bubbles start to overflow outwards until the pot cover is opened. That is, as shown in fig. 3, the abscissa of the standard overflow signal curve is the time of detection, the ordinate of the overflow signal curve is the air pressure signal, and in the present embodiment, the value of the air pressure signal is the amplitude of the air pressure signal.
In the above description, the liquid overflow detection device may further perform the overflow prevention control according to whether the air pressure variation curve is matched with an overflow interval in the pre-acquired standard overflow signal curve, in a specific manner: and in the same period, respectively determining the similarity between the curve fluctuation condition and/or the curve shape of the air pressure change curve and the curve fluctuation condition and/or the curve shape of the overflow interval of the standard overflow signal curve, and if the similarity between the curve fluctuation condition of the air pressure change curve and the curve fluctuation condition of the overflow interval of the standard overflow signal curve is greater than a preset fluctuation value, and/or if the similarity between the curve shape of the air pressure change curve and the curve shape of the overflow interval of the standard overflow signal curve is greater than a preset shape value, judging that the air pressure change curve is matched with the pre-acquired overflow interval in the standard overflow signal curve.
The matching refers to the approximation on the curve shape, and the approximation degree of the curve can be measured through algorithms such as fuzzy calculation and the like. As can be seen from the graph of fig. 4, since the curves in the stages before and after the overflow are greatly different from the curves in the other stages, the curves do not need to be completely or highly consistent when the curve matching is performed, and the conclusion can be reached as long as a certain degree of similarity is achieved. Moreover, such determination of the different degrees of overflow is advantageous for subsequent operations, and more refined warning and control processing can be realized, such as warning when a certain preset condition is satisfied, stopping heating or reducing power when another preset condition is satisfied.
Wherein, the standard overflow signal curve is obtained based on the overflow characteristic of the liquid, and specifically comprises the following steps:
1) the process that water is heated to boiling in the container is a process that liquid gradually changes to gas; in the process of heating water, water drops which are close to a heating source are continuously vaporized, then formed bubbles rise in the water, and the bubbles break up until rising to the water surface, so that water vapor is formed and is emitted to the liquid surface.
2) Usually, in the process of boiling water, making soup or cooking porridge, a plurality of small water drops are vaporized and then form small bubbles to rise and break; in the process that water is gradually boiled, water drops in the container are gradually vaporized to form bubbles which rise and break to form water vapor, and the water vapor is diffused to the surface of the liquid and gathered in the pot.
3) Generally, in the process of boiling water, making soup or cooking porridge, water vapor in a container gradually changes from little to much and finally gathers in the container; in the process, the gas pressure value caused by liquid bubbles in the container can also change, when soup in the container is boiled, steam in the container reaches a certain amount, and when the amplitude of a gas pressure signal in the container reaches a certain limit, the pot cover can be pushed open.
4) When the cover plate of the container is pushed open, bubbles generated by porridge or soup in the container can emerge from the position where the pot cover is lifted open, which is the phenomenon of overflow.
5) According to the principles of 1) to 4), the heating device can be controlled to automatically reduce the heating power when the cover plate of the container is lifted and air bubbles in the pot are about to emerge in the process of boiling water, cooking soup or cooking porridge by using the air pressure sensor, and then the food materials in the container are slowly braised by using slow fire, so that the overflow is avoided.
From the above description, it can be known that the liquid overflow detection method provided by the embodiment of the invention can accurately and effectively prevent the liquid in the pot from overflowing while ensuring that the liquid in the pot is cooked, and the judgment on the overflow process is accurate and reliable, so that the safety risk of improper use of the induction cooker is avoided, the intelligent degree of cooking by using the induction cooker is also improved, and further the user experience is improved.
In one embodiment, the overflow interval in the liquid overflow detection method of the present invention is an interval range between a first air pressure signal value corresponding to when a liquid bubble in the heated liquid first starts to overflow and a second air pressure signal value when the liquid bubble first pushes open the cover plate of the container.
For example, referring to fig. 4, the interval of reference numeral 1 is an interval in which the liquid bubbles are not generated, the interval of reference numeral 2 is an overflow interval, the lower limit value of the overflow interval is a first pressure signal value corresponding to when the liquid bubbles start to overflow for the first time, the upper limit value of the overflow interval is an interval range between second pressure signal values when the liquid bubbles open the container cover for the first time, each valley value of the subsequent curve is an amplitude of a pressure signal corresponding to when the container cover falls, and each peak value is an amplitude of a pressure signal corresponding to when the container cover is opened again.
As can be seen from the above description, the liquid overflow detection method provided by the embodiment of the present invention provides an accurate data basis for the subsequent anti-overflow control by accurately obtaining the overflow interval in the overflow signal curve, thereby effectively improving the control accuracy and reliability for preventing the liquid in the pot from overflowing.
An embodiment of the present invention provides a specific implementation manner of a liquid overflow detection device capable of implementing all steps in the above liquid overflow detection method, and referring to fig. 5, the liquid overflow detection device specifically includes the following contents:
the air pressure signal detection module 10 is used for generating an air pressure signal according to the air pressure state of the liquid in the heating process of the liquid in the container covered with the cover plate.
And the to-be-overflowed state judging module 20 is used for judging whether the liquid is in the to-be-overflowed state or not according to the change trend of the air pressure signal.
The embodiment of the liquid overflow detection apparatus provided in the present invention may be specifically used for executing the processing procedure of the embodiment of the liquid overflow detection method, and the functions of the embodiment are not described herein again, and reference may be made to the detailed description of the embodiment of the method.
From the above description, it can be known that the liquid overflow detection device provided by the embodiment of the invention can accurately and effectively prevent the liquid in the pot from overflowing while ensuring that the liquid in the pot is cooked, and the judgment on the overflow process is accurate and reliable, so that the safety risk of improper use of the induction cooker is avoided, the intelligent degree of cooking by using the induction cooker is also improved, and further the user experience is improved.
An embodiment of the present invention provides a specific implementation manner of an electronic device capable of implementing all steps in the above liquid overflow detection method, and referring to fig. 6, the electronic device specifically includes the following contents:
a processor (processor)601, a memory (memory)602, a communication Interface (Communications Interface)603, and a bus 604;
the processor 601, the memory 602 and the communication interface 603 complete mutual communication through the bus 604; the communication interface 603 is used for realizing information transmission among related devices such as modeling software, an intelligent manufacturing equipment module library and the like;
the processor 601 is configured to call the computer program in the memory 602, and the processor implements all the steps in the first embodiment when executing the computer program, for example, the processor implements the following steps when executing the computer program:
step 100: during heating of a liquid in a container covered with a cover plate, an air pressure signal is generated according to an air pressure state in the container.
Step 200: and judging whether the liquid is in a state to be overflowed or not according to the variation trend of the air pressure signal.
From the above description, it can be known that the electronic device provided by the embodiment of the invention can accurately and effectively prevent the liquid in the pot from overflowing while ensuring that the liquid in the pot is cooked, and the judgment on the overflowing process is accurate and reliable, so that the safety risk of improper use of the induction cooker is avoided, the intelligent degree of cooking by using the induction cooker is also improved, and further the user experience is improved.
An embodiment four of the present invention provides a computer-readable storage medium capable of implementing all the steps of the liquid overflow detection method, where the computer-readable storage medium stores a computer program, and the computer program implements all the steps of the first embodiment when being executed by a processor, for example, the processor implements the following steps when executing the computer program:
step 100: during heating of a liquid in a container covered with a cover plate, an air pressure signal is generated according to an air pressure state in the container.
Step 200: and judging whether the liquid is in a state to be overflowed or not according to the variation trend of the air pressure signal.
As can be seen from the above description, the computer-readable storage medium provided in the embodiments of the present invention can accurately and effectively prevent the liquid in the pot from overflowing while ensuring that the liquid in the pot is cooked, and the overflow process is accurately and reliably determined, so that the safety risk of improper use of the induction cooker is avoided, the intelligent degree of cooking using the induction cooker is also improved, and further the user experience is improved.
An embodiment of the present invention provides a specific implementation manner of a pot capable of implementing all steps in the liquid overflow detection method, and referring to fig. 7, the specific structure of the pot is as follows:
the cookware includes: the pot comprises a pot body 1 and a pot cover 2, wherein the pot cover 2 is provided with a liquid overflow detection device in the third embodiment, the liquid overflow detection device comprises a controller 3, the liquid overflow detection device comprises the controller 3, and an air pressure sensor 4 and a first wireless transceiving unit 5 which are connected with the controller 3; the first wireless transceiver unit 5 is in communication connection with a heating device 6 for heating the pot body 1.
In this embodiment, the controller 3 may be a single chip microcomputer.
In this embodiment, the process of the cookware performing the anti-overflow control is as follows:
1) the controller 3 firstly receives the starting signal of the heating device 6 and controls the air pressure sensor 4 arranged on the pot cover 2 to continuously detect the air pressure signal of the heated liquid in the pot body 1 covered with the pot cover 2.
2) The controller 3 acquires the air pressure signal detected by the air pressure sensor 4, and generates a signal curve of the air pressure signal according to the air pressure signal, wherein the signal curve of the air pressure signal is used for displaying the corresponding relation between the value of the air pressure signal and time, and an overflow interval is marked in the overflow signal curve.
3) The controller 3 receives the air pressure signal of the heated liquid in the pot body 1 covered with the pot cover 2 sent by the air pressure sensor 4.
4) The controller 3 judges whether the air pressure signal is matched with an overflow interval of a standard overflow signal curve or not according to the overflow signal curve; if yes, executing step 5) and returning to step 3), otherwise, directly returning to step 3).
5) The controller 3 sends the anti-overflow instruction to the heating device 6 through the first wireless transceiver 5, so that the heating device 6 changes the heating power of the heating device 6 to the pot body 1 according to the anti-overflow instruction, and the pot cover 2 is not pushed open by liquid bubbles while the pot body 1 is continuously heated.
From the above description, it can be known that the pot provided by the embodiment of the present invention can accurately and effectively prevent the liquid in the pot from overflowing while ensuring that the liquid in the pot is cooked, and the overflow process is accurately and reliably determined, so that the safety risk of improper use of the induction cooker 7 is avoided, the intelligent degree of cooking by using the induction cooker 7 is also improved, and further the user experience is improved.
An embodiment of the present invention provides a specific implementation manner of an electromagnetic heating assembly capable of implementing all steps in the liquid overflow detection method, and referring to fig. 8, a specific structure of the electromagnetic heating assembly is as follows:
the heating assembly includes: the cooker described in the fifth embodiment, and an induction cooker 7 as a heating device 6 of the pot body 1; the induction cooker 7 is internally provided with an IGBT driving switch 72, a microcontroller 73 and a second wireless transceiver unit 74 of a heating coil 71 which are connected in sequence; the second radio transceiver unit 74 is in communication connection with the first radio transceiver unit 5; the microcontroller 73 is configured to receive an anti-overflow instruction sent by the controller 3 through the second wireless transceiver unit 74, and control the IGBT drive switch 72 to change a switching state according to the anti-overflow instruction, so as to change the heating power of the heating coil 71.
In this embodiment, the process of performing the anti-overflow control on the electromagnetic heating assembly is as follows:
1) the controller 3 firstly receives a starting signal of the induction cooker 7 and controls the air pressure sensor 4 arranged on the pot cover 2 to continuously detect an air pressure signal of heated liquid in the pot body 1 covered with the pot cover 2.
2) The controller 3 acquires the air pressure signal detected by the air pressure sensor 4, and generates an air pressure change curve according to the air pressure signal, wherein the air pressure change curve is used for displaying the corresponding relation between the value of the air pressure signal and time, and an overflow interval is marked in the overflow signal curve.
3) The controller 3 receives the air pressure signal of the heated liquid in the pot body 1 covered with the pot cover 2 sent by the air pressure sensor 4.
4) The controller 3 judges whether the air pressure change curve is matched with an overflow interval of the standard overflow signal curve; if yes, executing step 5) and returning to step 3), otherwise, directly returning to step 3).
5) The controller 3 sends the anti-overflow instruction to the electromagnetic oven 7 through the first wireless transceiver unit 5.
6) The microcontroller 73 in the induction cooker 7 receives the anti-overflow instruction sent by the controller 3 through the second wireless transceiver unit 74.
7) The microcontroller 73 controls the IGBT (Insulated Gate Bipolar Transistor; an insulated gate bipolar transistor) drives a switch to change the switch state, thereby changing the heating power of the heating coil 71 in the induction cooker 7.
The Microcontroller 73 may also be a single chip Microcomputer (MCU).
From the above description, it can be known that the electromagnetic heating assembly provided by the embodiment of the present invention can accurately and effectively prevent the liquid in the pot from overflowing while ensuring that the liquid in the pot is cooked, and the judgment on the overflowing process is accurate and reliable, so that the safety risk of improper use of the induction cooker 7 is avoided, the intelligent degree of cooking by using the induction cooker 7 is also improved, and further the user experience is improved.
For further explaining the scheme, the invention also provides a specific application example of the method for realizing the liquid overflow detection by applying the electromagnetic heating assembly, which specifically comprises the following steps:
the electromagnetic heating assembly includes: the electromagnetic cooker comprises a pot, an electromagnetic oven matched with the pot, a pot cover matched with the pot, an upper signal detection device, a signal processing and control module and a wireless transceiving module, wherein the upper signal detection device, the signal processing and control module and the wireless transceiving module are arranged on the pot cover;
the signal detection device transmits the acquired data to the signal processing and control module for data processing and analysis; then the boiling state is sent to the induction cooker through a wireless transceiving module; the wireless transceiver receives the overflow state sent from the pot cover and transmits the overflow state to the control MCU of the induction cooker, and the control MCU of the induction cooker controls the switching state of the GBT according to the received boiling state, thereby achieving the purpose of controlling the heating power of the heating coil of the induction cooker. Wherein, the wireless transceiver is 433 wireless transceiver module; the signal detection device comprises air pressure arranged on the pot cover, and the data is transmitted to the signal processing and control module which is a singlechip used for processing overflow signals; the electromagnetic oven is internally provided with: the electromagnetic oven comprises an IGBT tube driving circuit for controlling the heating state of the electromagnetic oven, a boiling state wireless transceiver for receiving the boiling state transmitted from the pot cover and a control MCU, wherein the control MCU of the electromagnetic oven controls the switching state of the GBT according to the received boiling state.
As can be seen from the above description, the single chip microcomputer for processing the air pressure signal in the technical solution of the above application example samples the air pressure signal at intervals to obtain the original data of the air pressure signal, then performs a series of processing on the original data of the air pressure signal, and finally obtains a curve of standard overflow change in the process of boiling water, soup or porridge. When an overflow signal is detected and the air pressure change curve is matched with an overflow interval in the pre-acquired standard overflow signal curve, the singlechip for processing the overflow signal sends a signal that liquid is boiled to the matched induction cooker through the wireless transceiver module. When the induction cooker receives a boiling signal uploaded from the cooker cover through the wireless transceiver module, the control MCU of the induction cooker controls the on-off state of the IGBT according to the received boiling state, so that the purpose of controlling the heating power of the heating coil of the induction cooker is achieved, soup in the cooker is kept below the boiling point under the condition that the temperature of food is not influenced, and the soup is slowly braised.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A liquid overflow detection method, comprising:
generating an air pressure signal according to the air pressure state in the container in the heating process of the liquid in the container covered with the cover plate;
generating an air pressure change curve according to the change trend of the air pressure signal; judging whether the air pressure change curve is matched with an overflow interval in a pre-acquired standard overflow signal curve, and if so, determining that the liquid enters a to-be-overflowed state;
the standard overflow signal curve is used for displaying the corresponding relation between the value of the air pressure signal of the liquid and the time, an overflow interval is marked in the standard overflow signal curve, the change trend of the air pressure signal is acquired according to the air pressure signal from an identification starting time point to a current time point, the identification starting time point is the time point after a second time period elapses since the heating is started, and the second time period is not more than the time length for the liquid in the container to start generating liquid bubbles.
2. The liquid overflow detecting method of claim 1, wherein a pressure sensor is used to generate a pressure signal as the pressure signal according to the pressure state in the container, and the pressure level of the pressure signal indicates the pressure intensity.
3. The liquid overflow detection method of claim 1, further comprising:
and sending an anti-overflow instruction to a heating device for heating the liquid, so that the heating device changes the heating power of the heating device according to the anti-overflow instruction.
4. The method according to claim 1, wherein the overflow window is a range between a first pressure signal value in the container corresponding to the first time the liquid bubbles in the heated test liquid begin to overflow and a second pressure signal value in the container corresponding to the first time the liquid bubbles in the liquid open the cover of the container.
5. A liquid overflow detection device, comprising:
the air pressure signal detection module is used for generating an air pressure signal according to the air pressure state in the container in the heating process of the liquid in the container covered with the cover plate;
the to-be-overflowed state judging module is used for generating an air pressure change curve according to the change trend of the air pressure signal, judging whether the air pressure change curve is matched with an overflow interval in a pre-acquired standard overflow signal curve, and if so, determining that the liquid enters the to-be-overflowed state;
the standard overflow signal curve is used for displaying the corresponding relation between the value of the air pressure signal of the liquid and the time, an overflow interval is marked in the standard overflow signal curve, the change trend of the air pressure signal is acquired according to the air pressure signal from an identification starting time point to a current time point, the identification starting time point is the time point after a second time period elapses since the heating is started, and the second time period is not more than the time length for the liquid in the container to start generating liquid bubbles.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the liquid overflow detection method of any of claims 1 to 4 are implemented when the program is executed by the processor.
7. 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 liquid overflow detection method of any one of claims 1 to 4.
8. A pot, characterized in that, be equipped with on the pot and spill over the detection device as claimed in claim 5.
9. The pot as claimed in claim 8, wherein the pot comprises a pot body and a pot cover, and correspondingly, the liquid overflow detecting device is arranged on the pot cover.
10. An electromagnetic heating assembly, comprising: heating device, and a pot as claimed in claim 8 or 9.
11. The electromagnetic heating assembly of claim 10, wherein the heating device has a controller and a second wireless transceiver unit communicatively coupled thereto;
the second wireless transceiver unit is in communication connection with the liquid overflow detection device;
the controller is used for receiving an anti-overflow instruction sent by the liquid overflow detection device through the second wireless receiving and sending unit and changing heating power according to the anti-overflow instruction.
12. An electromagnetic heating assembly according to claim 10 or 11, wherein the heating device is an induction cooker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267097.0A CN109419316B (en) | 2018-03-28 | 2018-03-28 | Liquid overflow detection method and device, pot and electromagnetic heating assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810267097.0A CN109419316B (en) | 2018-03-28 | 2018-03-28 | Liquid overflow detection method and device, pot and electromagnetic heating assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109419316A CN109419316A (en) | 2019-03-05 |
| CN109419316B true CN109419316B (en) | 2021-11-12 |
Family
ID=65513690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810267097.0A Active CN109419316B (en) | 2018-03-28 | 2018-03-28 | Liquid overflow detection method and device, pot and electromagnetic heating assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109419316B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112568724A (en) * | 2019-09-29 | 2021-03-30 | 浙江绍兴苏泊尔生活电器有限公司 | Heating set and state identification method |
| CN113545664B (en) * | 2021-08-03 | 2022-06-03 | 珠海格力电器股份有限公司 | Pressure container, control method thereof and cooking utensil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203914529U (en) * | 2014-04-09 | 2014-11-05 | 浙江绍兴苏泊尔生活电器有限公司 | cooker for electromagnetic oven |
| CN105973998A (en) * | 2016-07-27 | 2016-09-28 | 邓东东 | Cooking tool and method for blindly determining food cooking degree |
| CN107224200A (en) * | 2017-08-12 | 2017-10-03 | 合肥全飞信息科技有限公司 | A kind of no-spill energy-saving cooker cover |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3000593A1 (en) * | 1980-01-09 | 1981-07-16 | Wmf Wuerttemberg Metallwaren | Cooking utensil with pressure or temp. detector - controlling power regulator via electromagnetic or ultra sound link |
| KR100673718B1 (en) * | 2005-03-14 | 2007-01-24 | 쿠쿠전자주식회사 | Sensor system and method of steam leaking out for pressure rice pot |
| CN101650554B (en) * | 2009-02-04 | 2011-10-19 | 李以勤 | Method for accurately distinguishing overflow signal of soymilk grinder and food processor in heating process |
| JP2015080491A (en) * | 2013-10-21 | 2015-04-27 | 象印マホービン株式会社 | Pressure cooker |
| CN104665588A (en) * | 2013-11-29 | 2015-06-03 | 陕西龙海工程建设有限公司 | Overflowing preventing pot |
| CN204494513U (en) * | 2015-03-26 | 2015-07-22 | 中山市新帝电器制造有限公司 | A kind of kitchen range with induction flowover-proof type pot cover |
| CN107692806A (en) * | 2017-10-25 | 2018-02-16 | 谢勇 | Electric-heating cooking appliance with wireless steam detection means |
-
2018
- 2018-03-28 CN CN201810267097.0A patent/CN109419316B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203914529U (en) * | 2014-04-09 | 2014-11-05 | 浙江绍兴苏泊尔生活电器有限公司 | cooker for electromagnetic oven |
| CN105973998A (en) * | 2016-07-27 | 2016-09-28 | 邓东东 | Cooking tool and method for blindly determining food cooking degree |
| CN107224200A (en) * | 2017-08-12 | 2017-10-03 | 合肥全飞信息科技有限公司 | A kind of no-spill energy-saving cooker cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109419316A (en) | 2019-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230199919A1 (en) | Induction hob with boiling detection and induction energy control, method for heating food with an induction hob and computer program product | |
| JP4792931B2 (en) | Cooker | |
| US9027469B2 (en) | Method for controlling a cooking process | |
| CN110313825B (en) | Liquid overflow detection method and device, pot and electromagnetic heating assembly | |
| CN109871050B (en) | Cooking appliance control method and cooking appliance | |
| CN109419315B (en) | Liquid overflow detection method and device, pot and electromagnetic heating assembly | |
| CN109419316B (en) | Liquid overflow detection method and device, pot and electromagnetic heating assembly | |
| CN108775605A (en) | A kind of culinary art behavior sensing module | |
| CN107440512A (en) | Anti-overflow detection method and health preserving kettle | |
| CN107289474B (en) | Control method of induction cooker and induction cooker | |
| CN107865575B (en) | Cooking appliance and cooking method for cooking by using same | |
| CN103941771A (en) | Kitchen appliance control system and control method thereof | |
| CN110613334A (en) | Control method and device of cooking equipment and storage medium | |
| CN111449510B (en) | Control method of cooking appliance and cooking appliance | |
| CN104571184A (en) | Intelligent cooking kitchen ware juice thickening method, intelligent cooking kitchen ware and cookware | |
| CN109425407B (en) | Liquid overflow detection method and device, pot, heating device and heating assembly | |
| CN110986105A (en) | Prompting method of intelligent cooker and intelligent cooker with prompting function | |
| CN207575024U (en) | Overflow-proof cooking device | |
| CN110320242A (en) | Liquid overflow detection method, device, cookware, heating device and heating component | |
| CN108720597A (en) | Overflow-proof cooking device | |
| CN209153042U (en) | A kind of heating equipment | |
| CN110710857A (en) | Cooking control method and cooking appliance | |
| CN111134521A (en) | Heating control method, heating control device, medium and liquid heating container | |
| CN108685469A (en) | Heating control method and device for electric heating appliance and electric heating appliance | |
| CN113124430A (en) | Signal processing method, heating platform and stove assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |