CN108693798B - Pot dry-cooking judgment method and device for electric cooker and electric cooker - Google Patents
Pot dry-cooking judgment method and device for electric cooker and electric cooker Download PDFInfo
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- CN108693798B CN108693798B CN201710227659.4A CN201710227659A CN108693798B CN 108693798 B CN108693798 B CN 108693798B CN 201710227659 A CN201710227659 A CN 201710227659A CN 108693798 B CN108693798 B CN 108693798B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention discloses a method and a device for judging dry cooking of a pot of an electric cooker and the electric cooker, wherein the method comprises the following steps: sampling the heating temperature of the cooker at intervals of first preset time to obtain N temperature sampling values, wherein N is an integer greater than 1; calculating the total variance of the N temperature sampling values once every time one temperature sampling value is obtained from the Nth temperature sampling value, wherein after the N temperature sampling values are obtained, the N temperature sampling values are updated according to the obtained current temperature sampling value every time one temperature sampling value is obtained; judging whether the current temperature sampling value is larger than a preset temperature threshold value or not; and if the current temperature sampling value is larger than the preset temperature threshold value, judging whether the cookware is in a dry-burning state or not according to the current temperature sampling value and the total variance obtained by current calculation. According to the method provided by the invention, whether the pot is in a dry-burning state can be accurately judged in time, so that the cooking safety can be improved.
Description
Technical Field
The invention relates to the technical field of cooking appliances, in particular to a method and a device for judging dry cooking of a pot of an electric cooker and the electric cooker.
Background
Compared with the traditional resistance heating, the electromagnetic heating has the advantages of high efficiency, energy conservation, safety, reliability and the like, is widely applied to small household electrical appliances such as induction cookers, electric cookers and the like, and generally adopts a method for judging the temperature change slope to carry out dry-burning protection judgment in order to ensure the use safety and prevent dry burning of cookware. However, due to the limitations of temperature hysteresis and temperature measurement structure, the accuracy and real-time performance of temperature acquisition are insufficient, so that dry burning protection is delayed, even dry burning cannot be detected, and the safety performance of product use is affected.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, an object of the present invention is to provide a method for determining dry cooking of a pot in an electric cooking device, which can determine whether the pot is in a dry cooking state accurately in time, so as to improve cooking safety.
The second objective of the present invention is to provide a device for determining dry cooking of a pot in an electric cooker.
A third object of the present invention is to provide an electric cooking appliance.
In order to achieve the above object, a method for determining dry cooking of a pot in an electric cooking device is provided in an embodiment of a first aspect of the present invention, the method includes the following steps: sampling the heating temperature of the cookware at intervals of first preset time to obtain N temperature sampling values, wherein N is an integer greater than 1; calculating the total variance of the N temperature sampling values once every time one temperature sampling value is obtained from the obtaining of the Nth temperature sampling value, wherein after the N temperature sampling values are obtained, the N temperature sampling values are updated according to the obtained current temperature sampling value every time one temperature sampling value is obtained; judging whether the current temperature sampling value is larger than a preset temperature threshold value or not; and if the current temperature sampling value is larger than a preset temperature threshold value, judging whether the cooker is in a dry-burning state or not according to the current temperature sampling value and the total variance obtained by current calculation.
According to the method for judging the dry burning of the pot for the electric cooker, the heating temperature of the pot can be sampled at intervals of the first preset time to obtain N temperature sampling values, the total variance of the N temperature sampling values after once updating is calculated when one temperature sampling value is obtained from the Nth temperature sampling value, and when the current temperature sampling value is larger than the preset temperature threshold value, whether the pot is in the dry burning state can be judged according to the current temperature sampling value and the total variance obtained by current calculation, so that whether the pot is in the dry burning state can be judged timely and accurately, and the cooking safety can be improved.
In addition, the method for determining dry cooking in a pot of an electric cooker according to the above embodiment of the present invention may further have the following additional technical features:
specifically, when the total variance obtained by current calculation is larger than a preset variance threshold value and the current temperature sampling value is larger than the temperature sampling value at the last sampling moment, the cookware is judged to be in a dry-burning state.
Further, when the total variance obtained by current calculation is greater than a preset variance threshold value and the current temperature sampling value is greater than the temperature sampling value at the last sampling moment, counting is carried out through a counter, and when the count value of the counter reaches the preset threshold value, the cookware is judged to be in a dry-burning state.
Specifically, updating the N temperature sample values according to the obtained current temperature sample value includes: and removing the temperature sampling value obtained earliest in the N temperature sampling values, and adding the current temperature sampling value as the Nth temperature sampling value to update the N temperature sampling values.
In order to achieve the above object, a second aspect of the present invention provides a dry cooking determination device for a pot of an electric cooking device, the device comprising: the sampling module is used for sampling the heating temperature of the cooker at intervals of first preset time to obtain N temperature sampling values, wherein N is an integer greater than 1; the numerical value processing module is used for calculating the total variance of the N temperature sampling values once every time one temperature sampling value is obtained from the time when the Nth temperature sampling value is obtained, wherein after the N temperature sampling values are obtained, the numerical value processing module updates the N temperature sampling values according to the obtained current temperature sampling value every time one temperature sampling value is obtained; the numerical value judging module is used for judging whether the current temperature sampling value is larger than a preset temperature threshold value or not; and the state judgment module is used for judging whether the cookware is in a dry-burning state or not according to the current temperature sampling value and the total variance obtained by current calculation when the current temperature sampling value is greater than a preset temperature threshold value.
According to the device for judging the dry cooking of the pot for the electric cooker, disclosed by the embodiment of the invention, the sampling module can sample the heating temperature of the pot at intervals of the first preset time to obtain N temperature sampling values, the numerical processing module calculates the total variance of the N temperature sampling values after one time of updating from the Nth temperature sampling value, and when the current temperature sampling value is greater than the preset temperature threshold value, the state judging module can judge whether the pot is in the dry cooking state according to the current temperature sampling value and the total variance obtained by current calculation, so that whether the pot is in the dry cooking state can be timely and accurately judged, and the cooking safety can be improved.
In addition, the device for determining dry cooking in a pot for an electric cooker according to the above embodiment of the present invention may further have the following additional technical features:
specifically, the state judgment module judges that the pot is in a dry-cooking state when the total variance obtained by current calculation is larger than a preset variance threshold value and the current temperature sampling value is larger than the temperature sampling value at the last sampling moment.
Further, a pan dry-burning judgment device for electric cooking ware still include the counter, when the total variance that obtains at present calculation is greater than preset variance threshold value and present temperature sampling value is greater than the temperature sampling value at last sampling moment, still pass through the counter counts, state judgment module is in when the count value of counter reaches preset threshold value, judge the pan is in the dry-burning state.
Specifically, the numerical processing module removes the temperature sampling value obtained earliest in the N temperature sampling values, and adds the current temperature sampling value as the nth temperature sampling value to update the N temperature sampling values.
In order to achieve the above object, an embodiment of the third aspect of the present invention provides an electric cooking device, which includes the pot dry-cooking determining apparatus for an electric cooking device according to the embodiment of the second aspect of the present invention.
According to the electric cooker provided by the embodiment of the invention, whether the cooker is in a dry-cooking state or not can be timely and accurately judged, so that the cooking safety can be improved.
Drawings
Fig. 1 is a flowchart of a pot dry-cooking determining method for an electric cooker according to an embodiment of the present invention;
fig. 2 is a flowchart of a pot dry-cooking determining method for an electric cooker according to an embodiment of the present invention;
fig. 3 is a block diagram illustrating a device for determining dry cooking of a pot of an electric cooker according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following describes a method and a device for determining dry cooking of a pot for an electric cooker, and the electric cooker, in accordance with embodiments of the present invention, with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for determining dry cooking of a pot in an electric cooker according to an embodiment of the present invention.
As shown in fig. 1, the method for determining dry cooking in a pot of an electric cooker according to the embodiment of the present invention includes the following steps:
s1, sampling the heating temperature of the cookware at intervals of a first preset time to obtain N temperature sampling values, wherein N is an integer greater than 1.
The electric cooker of the embodiment of the invention can be an electromagnetic heating electric cooker, such as an induction cooker and the like. For example, the temperature sample value obtained at the first preset time T is M1, the temperature sample value obtained at the second T is M2, … …, the temperature sample value obtained at the nth T is Mn, and when N is equal to N, a total of N temperature sample values of M1 to Mn are obtained.
And S2, calculating the total variance of the N temperature sampling values once every time one temperature sampling value is obtained from the Nth temperature sampling value, wherein after the N temperature sampling values are obtained, the N temperature sampling values are updated according to the obtained current temperature sampling value every time one temperature sampling value is obtained.
In an embodiment of the present invention, after acquiring N temperature sampling values, each time one temperature sampling value is acquired, the temperature sampling value acquired earliest in the N temperature sampling values may be removed, and the current temperature sampling value may be added as the nth temperature sampling value to update the N temperature sampling values. Specifically, the first temperature sample value of the N temperature sample values may be removed, the serial numbers of the remaining temperature sample values of the N temperature sample values may be sequentially moved forward by one, and the current temperature sample value may be used as the nth temperature sample value, so that the N temperature sample values may be updated.
In the above example, when N is equal to N +1, M1 in the above N temperature sample values may be removed, and the sequence numbers of M2 to MN are sequentially moved forward by one, that is, M2 is changed to M1, M3 is changed to M2, … …, and MN is changed to M (N-1), and finally the temperature sample value obtained at the N +1 th T is supplemented to the sample population, that is, a new MN, so that new N temperature sample values may be formed. Likewise, as N increases, the N temperature sample values are still updated in the manner described above.
The total variance calculated for each acquisition of a temperature sample is thus the variance of the latest N temperature samples acquired up to the current time.
And S3, judging whether the current temperature sampling value is larger than a preset temperature threshold value.
Whether the heating temperature of the current pot is larger than a preset temperature threshold value or not is judged.
S4, if the current temperature sampling value is larger than the preset temperature threshold value, judging whether the cookware is in a dry-burning state or not according to the current temperature sampling value and the total variance obtained by current calculation.
Specifically, after the current temperature sampling value is judged to be larger than the preset temperature threshold value, when the total variance obtained through current calculation is larger than the preset variance threshold value and the current temperature sampling value is larger than the temperature sampling value at the last sampling moment, the cookware is judged to be in a dry-burning state. It should be understood that if the variance of the latest N temperature sampling values obtained up to the current time is large, it may indicate that the heating temperature of the pot is rapidly rising, and thus it may be determined that the pot is in a dry-cooking state.
When the cooking utensil is judged to be in the dry-cooking state, the electric cooking utensil can be controlled to start a dry-cooking protection program so as to prevent the danger caused by dry-cooking, for example, the heating power supply of the cooking utensil can be switched off, and the heating of the cooking utensil is stopped.
According to the method for judging the dry burning of the pot for the electric cooker, the heating temperature of the pot can be sampled at intervals of the first preset time to obtain N temperature sampling values, the total variance of the N temperature sampling values after once updating is calculated when one temperature sampling value is obtained from the Nth temperature sampling value, and when the current temperature sampling value is larger than the preset temperature threshold value, whether the pot is in the dry burning state can be judged according to the current temperature sampling value and the total variance obtained by current calculation, so that whether the pot is in the dry burning state can be judged timely and accurately, and the cooking safety can be improved.
In an embodiment of the invention, when the total variance obtained by the current calculation is greater than the preset variance threshold and the current temperature sampling value is greater than the temperature sampling value at the last sampling moment, the counting can be performed by the counter, and when the count value of the counter reaches the preset threshold, the cookware is judged to be in the dry-cooking state. That is to say, can be when two conditions that the total variance that obtains of calculating is greater than preset variance threshold value and present temperature sampling value is greater than the temperature sampling value of last sampling moment are satisfied many times in succession, judge that the pan is in the dry combustion method state, can prevent like this erroneous judgement, further improve the accuracy that the pan dry combustion method judged.
In an embodiment of the present invention, as shown in fig. 2, the method for determining dry cooking of a pot in an electric cooker may include the following steps:
s201, judging whether the number N of the acquired temperature sampling values reaches the set total sample amount N. If yes, go to step S202; if not, sampling is continued.
S202, calculating the variance Q of the N temperature sampling values, and judging whether Q is larger than a set variance threshold value W. If yes, go to step S203; if not, step S205 is performed.
S203, judging whether the current temperature sampling value MN is larger than the temperature sampling value M (N-1) at the last sampling moment. If yes, executing step S204; if not, step S205 is performed.
S204, judging that the cookware is in a dry-burning state, and starting a dry-burning protection program.
S205, continuing sampling, removing the earliest temperature sampling value in the N temperature sampling values, sequentially moving the serial numbers of the rest temperature sampling values of the N temperature sampling values forward by one, and taking the current temperature sampling value as the Nth temperature sampling value. After new N temperature sample values are obtained, the process may return to step S202.
In order to realize the method for judging the dry cooking of the pot for the electric cooker, the invention also provides a device for judging the dry cooking of the pot for the electric cooker.
As shown in fig. 3, the device for determining dry cooking of a pot in an electric cooker according to an embodiment of the present invention includes a sampling module 10, a value processing module 20, a value determining module 30, and a status determining module 40.
The sampling module 10 is configured to sample a heating temperature of the pot at every interval of a first preset time to obtain N temperature sampling values, where N is an integer greater than 1. The numerical processing module 20 is configured to calculate a total variance of the N temperature sampling values once every time a temperature sampling value is obtained from the nth temperature sampling value, where after the N temperature sampling values are obtained, the numerical processing module 20 further updates the N temperature sampling values according to the obtained current temperature sampling value every time a temperature sampling value is obtained. The value judging module 30 is used for judging whether the current temperature sampling value is greater than a preset temperature threshold value, and the state judging module 40 is used for judging whether the cookware is in a dry-burning state according to the current temperature sampling value and the current calculated total variance when the current temperature sampling value is greater than the preset temperature threshold value.
The electric cooker of the embodiment of the invention can be an electromagnetic heating electric cooker, such as an induction cooker and the like. For example, the sampling module 10 obtains a temperature sample value M1 at the first preset time T, obtains a temperature sample value M2, … … at the second preset time T, obtains a temperature sample value Mn at the nth preset time T, and obtains N temperature sample values M1 to Mn in total when N is equal to N.
In an embodiment of the present invention, after the sampling module 10 obtains N temperature sampling values, each time a temperature sampling value is obtained, the numerical processing module 20 may remove the earliest obtained temperature sampling value from the N temperature sampling values, and add the current temperature sampling value as the nth temperature sampling value to update the N temperature sampling values. Specifically, the numerical processing module 20 may remove the first temperature sample value of the N temperature sample values, sequentially move the sequence numbers of the remaining temperature sample values of the N temperature sample values one by one, and use the current temperature sample value as the nth temperature sample value, so as to update the N temperature sample values.
In the above example, when N is equal to N +1, M1 in the above N temperature sample values may be removed, and the sequence numbers of M2 to MN are sequentially moved forward by one, that is, M2 is changed to M1, M3 is changed to M2, … …, and MN is changed to M (N-1), and finally the temperature sample value obtained at the N +1 th T is supplemented to the sample population, that is, a new MN, so that new N temperature sample values may be formed. Likewise, as N increases, the N temperature sample values are still updated in the manner described above.
The total variance calculated for each acquisition of a temperature sample is thus the variance of the latest N temperature samples acquired up to the current time.
Then, the numerical judgment module 30 can judge whether the heating temperature of the current pot is greater than a preset temperature threshold, and after the numerical judgment module 30 judges that the current temperature sampling value is greater than the preset temperature threshold, the state judgment module judges that the pot is in a dry-burning state when the total variance obtained by current calculation is greater than the preset variance threshold and the current temperature sampling value is greater than the temperature sampling value at the last sampling time. It should be understood that if the variance of the latest N temperature sampling values obtained up to the current time is large, it may indicate that the heating temperature of the pot is rapidly rising, and thus it may be determined that the pot is in a dry-cooking state.
When the cooking utensil is judged to be in the dry-cooking state, the electric cooking utensil can be controlled to start a dry-cooking protection program so as to prevent the danger caused by dry-cooking, for example, the heating power supply of the cooking utensil can be switched off, and the heating of the cooking utensil is stopped.
According to the device for judging the dry cooking of the pot for the electric cooker, disclosed by the embodiment of the invention, the sampling module can sample the heating temperature of the pot at intervals of the first preset time to obtain N temperature sampling values, the numerical processing module calculates the total variance of the N temperature sampling values after one time of updating from the Nth temperature sampling value, and when the current temperature sampling value is greater than the preset temperature threshold value, the state judging module can judge whether the pot is in the dry cooking state according to the current temperature sampling value and the total variance obtained by current calculation, so that whether the pot is in the dry cooking state can be timely and accurately judged, and the cooking safety can be improved.
In an embodiment of the present invention, the device for determining dry-cooking of a pot for an electric cooker may further include a counter, and when the currently calculated total variance is greater than a preset variance threshold and the current temperature sampling value is greater than the temperature sampling value at the last sampling time, the counter may also count, and the state determination module 40 determines that the pot is in a dry-cooking state when the count value of the counter reaches the preset threshold. That is to say, can be when two conditions that the total variance that obtains of calculating is greater than preset variance threshold value and present temperature sampling value is greater than the temperature sampling value of last sampling moment are satisfied many times in succession, judge that the pan is in the dry combustion method state, can prevent like this erroneous judgement, further improve the accuracy that the pan dry combustion method judged.
Corresponding to the embodiment, the invention further provides an electric cooker.
The electric cooker of the embodiment of the present invention includes the device for determining dry cooking of a pot in an electric cooker according to the above embodiment of the present invention, and the specific implementation manner thereof may refer to the above embodiment, and is not described herein again to avoid redundancy.
According to the electric cooker provided by the embodiment of the invention, whether the cooker is in a dry-cooking state or not can be timely and accurately judged, so that the cooking safety can be improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. 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 present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A method for judging the dry burning of a pot for an electric cooker is characterized by comprising the following steps:
sampling the heating temperature of the cookware at intervals of first preset time to obtain N temperature sampling values, wherein N is an integer greater than 1;
calculating the total variance of the N temperature sampling values once every time one temperature sampling value is obtained from the obtaining of the Nth temperature sampling value, wherein after the N temperature sampling values are obtained, the N temperature sampling values are updated according to the obtained current temperature sampling value every time one temperature sampling value is obtained;
judging whether the current temperature sampling value is larger than a preset temperature threshold value or not;
if the current temperature sampling value is larger than a preset temperature threshold value, judging whether the cookware is in a dry-burning state or not according to the current temperature sampling value and the total variance obtained by current calculation;
and when the total variance obtained by current calculation is larger than a preset variance threshold value and the current temperature sampling value is larger than the temperature sampling value at the last sampling moment, judging that the pot is in a dry-burning state.
2. The method as claimed in claim 1, wherein when the total variance is greater than a preset variance threshold and the current temperature sampling value is greater than the temperature sampling value at the previous sampling time, the method further counts by a counter, and when the count value of the counter reaches a preset threshold, the method determines that the pot is in a dry-cooking state.
3. The dry cooking judgment method for a pot of an electric cooker according to any one of claims 1-2, wherein updating the N temperature samples according to the obtained current temperature sample value comprises:
and removing the temperature sampling value obtained earliest in the N temperature sampling values, and adding the current temperature sampling value as the Nth temperature sampling value to update the N temperature sampling values.
4. The utility model provides a device is judged to pan dry combustion method for electric cooker which characterized in that includes:
the sampling module is used for sampling the heating temperature of the cooker at intervals of first preset time to obtain N temperature sampling values, wherein N is an integer greater than 1;
the numerical value processing module is used for calculating the total variance of the N temperature sampling values once every time one temperature sampling value is obtained from the time when the Nth temperature sampling value is obtained, wherein after the N temperature sampling values are obtained, the numerical value processing module updates the N temperature sampling values according to the obtained current temperature sampling value every time one temperature sampling value is obtained;
the numerical value judging module is used for judging whether the current temperature sampling value is larger than a preset temperature threshold value or not;
the state judgment module is used for judging whether the cookware is in a dry-burning state or not according to the current temperature sampling value and the total variance obtained by current calculation when the current temperature sampling value is greater than a preset temperature threshold value;
and the state judgment module judges that the cooker is in a dry-burning state when the total variance obtained by current calculation is greater than a preset variance threshold value and the current temperature sampling value is greater than the temperature sampling value at the last sampling moment.
5. The device for determining dry cooking of a pot of an electric cooker according to claim 4, further comprising a counter for counting when the currently calculated total variance is greater than a preset variance threshold and the current temperature sampling value is greater than the temperature sampling value at the last sampling time, wherein the state determination module determines that the pot is in a dry cooking state when the count value of the counter reaches a preset threshold.
6. The dry cooking judgment device of claim 5, wherein the numerical processing module removes the earliest obtained temperature sample value from the N temperature sample values and adds the current temperature sample value as the Nth temperature sample value to update the N temperature sample values.
7. An electric cooker comprising the pot dry-cooking judgment device for an electric cooker according to any one of claims 4 to 6.
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| CN111006784B (en) * | 2019-12-21 | 2021-07-13 | 广东天际电器股份有限公司 | Dry burning judgment method applied to PTC heating equipment |
| CN111753733A (en) * | 2020-06-24 | 2020-10-09 | 重庆电子工程职业学院 | Safety identification system based on image identification |
| CN112032771B (en) * | 2020-08-06 | 2022-12-09 | 华帝股份有限公司 | Variance-based kitchen range self-adaptive dry burning prevention control method and control system |
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| CN102078133A (en) * | 2010-11-25 | 2011-06-01 | 佛山市顺德区美的电热电器制造有限公司 | Electric food warmer and method thereof for automatically identifying water state after dry burning |
| CN106108642A (en) * | 2016-08-30 | 2016-11-16 | 王小冲 | Method and device based on non-contact infrared temperature sensor monitors hot-water bottle state |
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