CN106979821A - The overheating detection method and apparatus of cooking apparatus - Google Patents
The overheating detection method and apparatus of cooking apparatus Download PDFInfo
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- CN106979821A CN106979821A CN201710179839.XA CN201710179839A CN106979821A CN 106979821 A CN106979821 A CN 106979821A CN 201710179839 A CN201710179839 A CN 201710179839A CN 106979821 A CN106979821 A CN 106979821A
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- 238000010411 cooking Methods 0.000 title claims abstract description 158
- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 238000013021 overheating Methods 0.000 title claims abstract description 51
- 230000008859 change Effects 0.000 claims abstract description 231
- 238000000034 method Methods 0.000 abstract description 10
- 230000005856 abnormality Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/48—Thermography; Techniques using wholly visual means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0092—Temperature by averaging, e.g. by scan
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Abstract
The invention discloses a kind of overheating detection method and apparatus of cooking apparatus, it the described method comprises the following steps：Obtain the mean temperature in the range of preset area above cooking apparatus；The temperature change value and rate of temperature change of cooking apparatus are obtained according to mean temperature, wherein, temperature change value is the temperature gap between mean temperature and fiducial temperature；Judge whether cooking apparatus overheats according to temperature change value and rate of temperature change.This method can effectively judge whether cooking apparatus occurs the abnormalities such as overheat according to the temperature change value in the range of preset area above cooking apparatus and rate of temperature change, it is to avoid security incident occur.
Description
Technical field
The present invention relates to household electrical appliance technical field, the overheating detection method and one kind of more particularly to a kind of cooking apparatus are cooked
Prepare food the overheating detection device of utensil.
Background technology
During the use of cooking appliance (such as gas-cooker, multi-head stove etc.), because user often forgets about pass fire/power-off,
Easily cause cooking apparatus and the abnormal conditions such as occur overheating.When cooking apparatus is overheated, can cause food it is burnt, culinary art
Utensil coated substance produces chemical reaction etc., not only pollutes kitchen environment, is caused harm to user's body health, and when serious
Can occur fire, there is very big potential safety hazard.
In correlation technique, judge whether cooking apparatus overheats by temperature change value, i.e. in the temperature of cooking apparatus
When degree changing value reaches predetermined temperature change threshold, judge that cooking apparatus is overheated.But, in actual use,
The heat that different size of cooking apparatus is born is different, it is easy to cause small cooking apparatus because the heat that bears is excessive and
Damage.
It is by setting two or more sensors, or using multiple moreover, when obtaining temperature change value
Different wave length section sensor detects the temperature of cooking apparatus, according to the temperature computation temperature change value, so not only hardware into
This height, and detect inaccurate.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of overheating detection method of cooking apparatus, can be according to culinary art
Temperature change value and rate of temperature change above utensil in the range of preset area, effectively judge whether cooking apparatus overheats
Etc. abnormality, it is to avoid security incident occur.
It is another object of the present invention to the overheating detection device for proposing a kind of cooking apparatus.
To achieve the above object, one aspect of the present invention embodiment proposes a kind of overheating detection method of cooking apparatus, bag
Include following steps：Obtain the mean temperature in the range of preset area above cooking apparatus；According to being obtained the mean temperature
The temperature change value and rate of temperature change of cooking apparatus, wherein, the temperature change value is the mean temperature and fiducial temperature
Between temperature gap；Judge whether the cooking apparatus overheats according to the temperature change value and the rate of temperature change.
The overheating detection method of cooking apparatus according to embodiments of the present invention, first, obtains default face above cooking apparatus
Mean temperature in product scope, then, the temperature change value and rate of temperature change of cooking apparatus is obtained according to mean temperature, most
Afterwards, judge whether cooking apparatus overheats according to temperature change value and rate of temperature change.This method can be above cooking apparatus
Temperature change value and rate of temperature change in the range of preset area, effectively judge whether cooking apparatus occurs the abnormal shape such as overheat
State, it is to avoid security incident occur.
According to one embodiment of present invention, it is described according to judging the temperature change value and the rate of temperature change
Whether cooking apparatus overheats, including：Judge whether the rate of temperature change is more than or equal to the first default rate of change；If the temperature
Spend rate of change and be more than or equal to the described first default rate of change, then the overheat of the cooking apparatus is calculated according to the rate of temperature change
Predicted value；Judge whether the overheat predicted value is more than or equal to default overheat threshold value and the temperature change value is more than or equal to the
One preset value；If the overheat predicted value is more than or equal to the default overheat threshold value and the temperature change value is more than or equal to
First preset value, then judge the cooking apparatus overheat.
According to one embodiment of present invention, it is described to overheat predicted value judging the rate of temperature change more than or equal to institute
State the rate of temperature change sum after the first default rate of change.
According to one embodiment of present invention, the overheating detection method of above-mentioned cooking apparatus, in addition to：Judge the temperature
Spend whether rate of change is less than the second default rate of change, wherein, the described second default rate of change is less than the described first default rate of change；
If the rate of temperature change is less than the described second default rate of change, the fiducial temperature is carried out according to the mean temperature
Compensation.
According to one embodiment of present invention, if the rate of temperature change be more than or equal to the described second default rate of change and
Less than the described first default rate of change, then also include：Judge whether the temperature change value is less than the second preset value, wherein, institute
The second preset value is stated less than first preset value；If the temperature change value is less than second preset value, to described
Overheat predicted value initialization.
According to one embodiment of present invention, one or more infrared ray temperature by being arranged on above the cooking apparatus
The mean temperature spent in the range of the sensor acquisition preset area.
To achieve the above object, the overheating detection device for a kind of cooking apparatus that another aspect of the present invention embodiment is proposed,
Including：First acquisition module, for obtaining the mean temperature above cooking apparatus in the range of preset area；Second acquisition module,
Temperature change value and rate of temperature change for obtaining the cooking apparatus according to the mean temperature, wherein, the temperature becomes
Change value is the temperature gap between the mean temperature and fiducial temperature；Judge module, for according to the temperature change value and
The rate of temperature change judges whether the cooking apparatus overheats.
The overheating detection device of cooking apparatus according to embodiments of the present invention, cooking apparatus is obtained by the first acquisition module
Mean temperature in the range of the preset area of top, the second acquisition module obtains the temperature change value of cooking apparatus according to mean temperature
And rate of temperature change, judge module judges whether cooking apparatus overheats according to temperature change value and rate of temperature change.The device energy
Enough temperature change values and rate of temperature change above cooking apparatus in the range of preset area, effectively judge that cooking apparatus is
It is no to occur the abnormalities such as overheat, it is to avoid security incident occur.
According to one embodiment of present invention, the judge module includes：First judging submodule, for judging the temperature
Spend whether rate of change is more than or equal to the first default rate of change；Computing module, for judging described in first judging submodule
When rate of temperature change is more than or equal to the described first default rate of change, the mistake of the cooking apparatus is calculated according to the rate of temperature change
Hot predicted value；Second judging submodule, for judging whether the overheat predicted value is more than or equal to default overheat threshold value and described
Temperature change value be more than or equal to the first preset value, wherein, if it is described overheat predicted value be more than or equal to it is described it is default overheat threshold value,
And the temperature change value is more than or equal to first preset value, then the cooking apparatus overheat is judged.
According to one embodiment of present invention, it is described to overheat predicted value judging the rate of temperature change more than or equal to institute
State the rate of temperature change sum after the first default rate of change.
According to one embodiment of present invention, the overheating detection device of above-mentioned cooking apparatus, in addition to compensating module, institute
Stating compensating module is used for when first judging submodule judges that the rate of temperature change is less than the second default rate of change, according to
The mean temperature is compensated to the fiducial temperature, wherein, the described second default rate of change is less than the described first default change
Rate.
According to one embodiment of present invention, the overheating detection device of above-mentioned cooking apparatus, in addition to initialization module,
The initialization module is used to judge that the rate of temperature change is more than or equal to described second and preset in first judging submodule
Rate of change and less than the described first default rate of change and second judging submodule judges the temperature change value less than second
During preset value, to the overheat predicted value initialization, wherein, second preset value is less than first preset value.
According to one embodiment of present invention, first acquisition module by be arranged on above the cooking apparatus one
Individual or multiple infrared temperature sensors obtain the mean temperature in the range of the preset area.
Brief description of the drawings
Fig. 1 is the flow chart of the overheating detection method of cooking apparatus according to embodiments of the present invention；
Fig. 2 is the structural representation detected using " point " mode to the temperature above cooking apparatus in correlation technique；
Fig. 3 is that use " face " mode according to an embodiment of the invention is detected to the temperature above cooking apparatus
Structural representation；
Fig. 4 is the temperature changing curve diagram for having food in cooking apparatus according to an embodiment of the invention；
Fig. 5 is the flow chart of the overheating detection method of cooking apparatus according to an embodiment of the invention；
Fig. 6 is the block diagram of the overheating detection device of cooking apparatus according to embodiments of the present invention；
Fig. 7 is the block diagram of the overheating detection device of cooking apparatus according to an embodiment of the invention；
Fig. 8 is the block diagram of the overheating detection device of cooking apparatus in accordance with another embodiment of the present invention；And
Fig. 9 is the block diagram of the overheating detection device of the cooking apparatus according to another embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The overheating detection method of cooking apparatus and the culinary art that propose according to embodiments of the present invention described with reference to the accompanying drawings
The overheating detection device of utensil.
Fig. 1 is the flow chart of the overheating detection method of cooking apparatus according to embodiments of the present invention.As shown in figure 1, this is cooked
The overheating detection method of utensil of preparing food may include following steps：
S1, obtains the mean temperature in the range of preset area above cooking apparatus.
According to one embodiment of present invention, passed by being arranged on one or more infrared temperatures above cooking apparatus
Sensor obtains the mean temperature in the range of preset area.
Specifically, by taking gas-cooker as an example.The temperature above cooking apparatus is carried out when using " point " mode shown in Fig. 2
, it is necessary to install the sensor with measurand equivalent amount during detection, and need distance between adjustment sensor and measurand.
Moreover, when being detected to temperature, if there is shelter between measurand and sensor, for example, being produced in cooking process
The foreign matters such as raw oil smoke, steam can block most of detection zone so that testing result is inaccurate, and anti-interference is poor.It is overall next
Say, " point " mode temperature checking method is affected by the external environment greatly.
When being detected using " face " mode shown in Fig. 3 to the temperature above cooking apparatus, single sensing can be used
The temperature of (such as range hood bottom) certain area above device detection cooking apparatus, not only overlay area is big, and cost is low, without
With other specification (the burner position of the cooking appliance of such as different model, relative position between sensor and measurand etc.),
And the foreign matter such as oil smoke, the steam produced in cooking process only blocks fraction area, does not interfere with testing result, anti-interference
It is stronger.
Therefore, in an embodiment of the present invention, detected using " face " mode.As shown in figure 3, can be cooked by being arranged on
The infrared temperature sensor (e.g., Non-contact Infrared Temperature Measurement sensor) prepared food above utensil, detects cooking apparatus in real time
Temperature in the preset area of top, the temperature includes temperature, the temperature of cooking apparatus and food temperature of cooking appliance etc., and
To the temperature averaged of acquisition, to obtain the average temperature tm in the range of preset area.
It is understood that in an embodiment of the present invention, multiple infrared temperature sensors can also be set with real-time
The temperature in preset area above cooking apparatus is detected, further to improve the accuracy of temperature detection.
S2, the temperature change value and rate of temperature change of cooking apparatus are obtained according to mean temperature.
Specifically, temperature change value is the temperature gap between average temperature tm and fiducial temperature Tr, rate of temperature change
DTm/dt is the mean temperature variable quantity in the short time.Wherein, fiducial temperature Tr can be the default value of Default Value, for example,
Default value can be 20 DEG C.
S3, judges whether cooking apparatus overheats according to temperature change value and rate of temperature change.
According to one embodiment of present invention, according to temperature change value and rate of temperature change judge cooking apparatus whether mistake
Heat, including：Judge whether rate of temperature change is more than or equal to the first default rate of change；If it is pre- that rate of temperature change is more than or equal to first
If rate of change, then the overheat predicted value of cooking apparatus is calculated according to rate of temperature change；Judge whether overheat predicted value is more than or equal to
Preset overheat threshold value and temperature change value is more than or equal to the first preset value；If overheating predicted value is more than or equal to default overheat threshold
It is worth and temperature change value is more than or equal to the first preset value, then judges that cooking apparatus is overheated.
Wherein, the first default rate of change and default overheat threshold value can be demarcated according to actual conditions, and overheat predicted value can
Diversified forms are defined, for example, overheat predicted value can be after judging that rate of temperature change is more than or equal to the first default rate of change
Rate of temperature change sum.
Specifically, after cooking appliance start-up operation, the mean temperature above cooking apparatus can change, and temperature becomes
Change value and rate of temperature change can also change accordingly.Due to detecting preset area model above cooking apparatus using " face " mode
Interior mean temperature, including the temperature of cooking appliance, the temperature of cooking apparatus and food temperature etc. are enclosed, therefore, no matter culinary art
Whether there is food in utensil, while whether the size of cooking apparatus when using is identical, can fast and accurately judge culinary art
Whether utensil overheats.
By taking the cooking apparatus with food as an example.As shown in figure 4, a-quadrant represents the cooking apparatus temperature liter with food
High curve, in this region, heat is concentrated to be heated to food and cooking apparatus；After B region representation certain times, in cooking apparatus
Food rear temperature lift curves are cooked, in this region, heat concentrates on moisture evaporation；Water in C region representation cooking apparatus
Divide temperature curve after evaporation, in this region, rate of temperature change is maximum.Therefore, can be according to the temperature change value and temperature in C regions
Rate of change judges whether cooking apparatus overheats.
When rate of temperature change is more than or equal to certain value (the such as first default rate of change), the C regions in corresponding diagram 4, now,
OEV (Overheat Estimation Value, overheat prediction can be calculated according to the rate of temperature change that dotted line is irised out in C regions
Value), for example, the temperature that overheat predicted value OEV can for the first time be more than or equal to for rate of temperature change after the first default rate of change γ
Rate of change sum, i.e. OEV=Σ dTm/dt.Meanwhile, calculate the difference between mean temperature and fiducial temperature, i.e. temperature change
Value.Then, overheat predicted value OEV and temperature change value are judged, if overheat predicted value OEV is more than or equal to default overheat
Threshold value and temperature change value are more than or equal to the first preset value, then illustrate that cooking apparatus is overheated.So as to utilize relevant heat transfer characteristic
Rate of temperature change data, without presetting actual overtemperature value (e.g., can be judged as overheat more than 50 DEG C), are effectively solved
Using different heat transfers cooking apparatus (e.g., cooking apparatus of different sizes) when the problems of excessive heat that occurs.And judging
When overheating, alarm can be sent to remind user.
Therefore, the overheating detection method of cooking apparatus according to embodiments of the present invention, by pre- above cooking apparatus
If temperature change value and rate of temperature change in areal extent judge whether cooking apparatus occurred cause thermal damage, essence is not only judged
Degree is high, and cost is than relatively low, highly versatile.
According to one embodiment of present invention, the overheating detection method of above-mentioned cooking apparatus also includes：Judge that temperature becomes
Whether rate is less than the second default rate of change；If rate of temperature change is less than the second default rate of change, according to mean temperature pair
Fiducial temperature is compensated.Wherein, the second default rate of change is less than the first default rate of change, and the second default rate of change can be according to reality
Border situation is demarcated.
Specifically, Various Seasonal, the environment temperature of different regions are different, if carried out using the fiducial temperature of acquiescence
Calculate and judge, then when judging whether cooking apparatus overheat occurs, larger error can be produced, be therefore, it can to benchmark temperature
Degree is compensated, so that fiducial temperature more conforms to actual conditions.
Specifically, when judging rate of temperature change, if rate of temperature change is less than the second default rate of change, say
Bright cooking appliance is not opened, now, fiducial temperature can be entered according to the mean temperature in the range of preset area above cooking apparatus
Row compensation, for example, fiducial temperature is equal to mean temperature；If rate of temperature change is more than or equal to the second default rate of change, illustrate
Cooking appliance is opened, and fiducial temperature is not compensated, that is, keeps current base temperature-resistant, and according to mean temperature and preservation
Fiducial temperature calculate temperature change value and rate of temperature change, to judge cooking apparatus according to temperature change value and rate of temperature change
Whether overheat.So as to be compensated by the mean temperature above cooking apparatus to fiducial temperature, not only cause control more
Plus precisely, and current environmental temperature is detected without extra temperature in use sensor, save cost.
Further, according to one embodiment of present invention, if rate of temperature change is more than or equal to the second default rate of change
And less than the first default rate of change, then also include：Judge whether temperature change value is less than the second preset value；If temperature change value
Less than the second preset value, then to overheat predicted value initialization.Wherein, the second preset value is less than the first preset value, the second preset value
It can be demarcated according to actual conditions.
Specifically, if rate of temperature change is more than the second default rate of change and less than the first default rate of change, illustrate
Now most of heat, which is concentrated on, is heated to cooking apparatus and food or to a-quadrant or B in moisture evaporation state, i.e. Fig. 4
Region.And if now temperature change value is less than the second preset value, then illustrate that cooking apparatus is not in overheat, now to overheat
Predicted value is initialized；If temperature change value is more than or equal to the second preset value, continue default above cooking apparatus
Mean temperature in areal extent obtains temperature change value and rate of temperature change, and temperature change value and rate of temperature change are carried out
Judge.
To make those skilled in the art be better understood upon the present invention.Fig. 5 is culinary art according to an embodiment of the invention
The flow chart of the overheating detection method of utensil.As shown in figure 5, the overheating detection method of the cooking apparatus may include following steps：
S101, obtains the average temperature tm of certain area above cooking apparatus.
S102, rate of temperature change dTm/dt is obtained according to Tm.
S103, judges whether dTm/dt is more than or equal to the second default rate of change α.If it is, performing step S105；If
It is no, perform step S104.
S104, is compensated according to Tm to fiducial temperature Tr, for example, Tr=Tm.
S105, judges whether dTm/dt is more than or equal to the first default rate of change γ.If it is, performing step S106；If
It is no, perform step S110.
S106, calculates overheat predicted value OEV, for example, OEV=Σ dTm/dt.
S107, obtains temperature change value Tm-Tr.
S108, judge OEV whether be more than or equal to set overheat threshold value δ and Tm-Tr be more than or equal to the first preset value B.If
It is to perform step S109；If not, performing step S110.
S109, cooking apparatus overheat.
S110, judges whether Tm-Tr is less than the second preset value A.If it is, performing step S111；If not, return to step
S101。
S111, OEV are initialized.
In summary, the overheating detection method of cooking apparatus according to embodiments of the present invention, first, is obtained on cooking apparatus
Mean temperature in the range of square preset area, then, becomes according to the temperature change value and temperature that mean temperature obtains cooking apparatus
Rate, finally, judges whether cooking apparatus overheats according to temperature change value and rate of temperature change.This method can be according to cooking pot
Temperature change value and rate of temperature change in the range of the preset area of tool top, effectively judge whether cooking apparatus occurs overheat etc.
Abnormality, it is to avoid security incident occur.
Fig. 6 is the block diagram of the overheating detection device of cooking apparatus according to embodiments of the present invention.As shown in fig. 6,
The overheating detection device of the cooking apparatus may include：First acquisition module 10, the second acquisition module 20 and judge module 30.
Wherein, the first acquisition module 10 is used to obtain the mean temperature above cooking apparatus in the range of preset area.Second
Acquisition module 20 is used for the temperature change value and rate of temperature change that cooking apparatus is obtained according to mean temperature, and temperature change value is flat
Temperature gap between temperature and fiducial temperature.Judge module 30 is used to judge to cook according to temperature change value and rate of temperature change
Whether utensil of preparing food overheats.
According to one embodiment of present invention, as shown in fig. 7, judge module 30 includes：First judging submodule 31, calculating
The judging submodule 33 of module 32 and second.Wherein, the first judging submodule 31 is used to judge whether rate of temperature change is more than or equal to
First default rate of change；Computing module 32 is used to judge that rate of temperature change is more than or equal to first and preset in the first judging submodule 31
During rate of change, the overheat predicted value of cooking apparatus is calculated according to rate of temperature change；Second judging submodule 33 is used to judge to overheat
Predicted value whether is more than or equal to default overheat threshold value and temperature change value is more than or equal to the first preset value, if overheat predicted value
More than or equal to it is default overheat threshold value and temperature change value be more than or equal to the first preset value, then judge cooking apparatus overheat.
According to one embodiment of present invention, overheat predicted value is to judge rate of temperature change more than or equal to the first default change
Rate of temperature change sum after rate.
According to one embodiment of present invention, as shown in figure 8, the overheating detection device of above-mentioned cooking apparatus also includes：
Compensating module 40.Compensating module 40 is used to judge that rate of temperature change is less than the second default rate of change in the first judging submodule 31
When, fiducial temperature is compensated according to mean temperature, wherein, the second default rate of change is less than the first default rate of change.
According to one embodiment of present invention, as shown in figure 9, the overheating detection device of above-mentioned cooking apparatus also includes：
Initialization module 50.Initialization module 50 is used to judge that rate of temperature change is more than or equal to second and preset in the first judging submodule 31
Rate of change and when judging temperature change value less than the second preset value less than the first default rate of change and the second judging submodule 33,
To overheat predicted value initialization, wherein, the second preset value is less than the first preset value.
According to one embodiment of present invention, the first acquisition module 10 is by be arranged on above cooking apparatus one or many
Individual infrared temperature sensor obtains the mean temperature in the range of preset area.
It should be noted that the details not disclosed in the overheating detection device of the cooking apparatus of the embodiment of the present invention, please join
The details disclosed in overheating detection method according to the cooking apparatus of the embodiment of the present invention, is specifically repeated no more here.
The overheating detection device of cooking apparatus according to embodiments of the present invention, cooking apparatus is obtained by the first acquisition module
Mean temperature in the range of the preset area of top, the second acquisition module obtains the temperature change value of cooking apparatus according to mean temperature
And rate of temperature change, judge module judges whether cooking apparatus overheats according to temperature change value and rate of temperature change.The device energy
Enough temperature change values and rate of temperature change above cooking apparatus in the range of preset area, effectively judge that cooking apparatus is
It is no to occur the abnormalities such as overheat, it is to avoid security incident occur.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (12)
1. a kind of overheating detection method of cooking apparatus, it is characterised in that comprise the following steps：
Obtain the mean temperature in the range of preset area above cooking apparatus；
The temperature change value and rate of temperature change of the cooking apparatus are obtained according to the mean temperature, wherein, the temperature becomes
Change value is the temperature gap between the mean temperature and fiducial temperature；
Judge whether the cooking apparatus overheats according to the temperature change value and the rate of temperature change.
2. the overheating detection method of cooking apparatus as claimed in claim 1, it is characterised in that described according to the temperature change
Value and the rate of temperature change judge whether the cooking apparatus overheats, including：
Judge whether the rate of temperature change is more than or equal to the first default rate of change；
If the rate of temperature change is more than or equal to the described first default rate of change, according to being calculated the rate of temperature change
The overheat predicted value of cooking apparatus；
Judge whether the overheat predicted value is more than or equal to default overheat threshold value and the temperature change value is pre- more than or equal to first
If value；
If the overheat predicted value is more than or equal to the default overheat threshold value and the temperature change value is more than or equal to described the
One preset value, then judge the cooking apparatus overheat.
3. the overheating detection method of cooking apparatus as claimed in claim 2, it is characterised in that the overheat predicted value is to sentence
The rate of temperature change sum that the rate of temperature change that breaks is more than or equal to after the described first default rate of change.
4. the overheating detection method of cooking apparatus as claimed in claim 2 or claim 3, it is characterised in that also include：
Judge whether the rate of temperature change is less than the second default rate of change, wherein, the described second default rate of change is less than described
First default rate of change；
If the rate of temperature change is less than the described second default rate of change, according to the mean temperature to the fiducial temperature
Compensate.
5. the overheating detection method of cooking apparatus as claimed in claim 4, it is characterised in that if the rate of temperature change is big
In equal to the described second default rate of change and less than the described first default rate of change, then also include：
Judge whether the temperature change value is less than the second preset value, wherein, second preset value, which is less than described first, to be preset
Value；
If the temperature change value is less than second preset value, to the overheat predicted value initialization.
6. the overheating detection method of cooking apparatus as claimed in claim 1, it is characterised in that by being arranged on the cooking pot
One or more infrared temperature sensors above tool obtain the mean temperature in the range of the preset area.
7. a kind of overheating detection device of cooking apparatus, it is characterised in that including：
First acquisition module, for obtaining the mean temperature above cooking apparatus in the range of preset area；
Second acquisition module, temperature change value and temperature change for obtaining the cooking apparatus according to the mean temperature
Rate, wherein, the temperature change value is the temperature gap between the mean temperature and fiducial temperature；
Judge module, for judging whether the cooking apparatus overheats according to the temperature change value and the rate of temperature change.
8. the overheating detection device of cooking apparatus as claimed in claim 7, it is characterised in that the judge module includes：
First judging submodule, for judging whether the rate of temperature change is more than or equal to the first default rate of change；
Computing module, for judging that the rate of temperature change is more than or equal to the described first default change in first judging submodule
During rate, the overheat predicted value of the cooking apparatus is calculated according to the rate of temperature change；
Second judging submodule, for judging whether the overheat predicted value is more than or equal to default overheat threshold value and the temperature
Changing value is more than or equal to the first preset value, wherein, if the overheat predicted value is more than or equal to the default overheat threshold value and institute
Temperature change value is stated more than or equal to first preset value, then judges the cooking apparatus overheat.
9. the overheating detection device of cooking apparatus as claimed in claim 8, it is characterised in that the overheat predicted value is to sentence
The rate of temperature change sum that the rate of temperature change that breaks is more than or equal to after the described first default rate of change.
10. the overheating detection device of cooking apparatus as claimed in claim 8 or 9, it is characterised in that also including compensating module,
The compensating module is used for when first judging submodule judges that the rate of temperature change is less than the second default rate of change, root
The fiducial temperature is compensated according to the mean temperature, wherein, the described second default rate of change, which is less than described first, to be preset
Rate of change.
11. the overheating detection device of cooking apparatus as claimed in claim 10, it is characterised in that also including initialization module,
The initialization module is used to judge that the rate of temperature change is more than or equal to described second and preset in first judging submodule
Rate of change and less than the described first default rate of change and second judging submodule judges the temperature change value less than second
During preset value, to the overheat predicted value initialization, wherein, second preset value is less than first preset value.
12. the overheating detection device of cooking apparatus as claimed in claim 7, it is characterised in that first acquisition module leads to
The one or more infrared temperature sensors being arranged on above the cooking apparatus are crossed to obtain in the range of the preset area
Mean temperature.
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| CN108302563A (en) * | 2018-01-10 | 2018-07-20 | 广东美的厨房电器制造有限公司 | Gas-cooker and its control method |
| CN108302562A (en) * | 2018-01-10 | 2018-07-20 | 广东美的厨房电器制造有限公司 | Gas-cooker and its control method |
| CN108828970A (en) * | 2018-06-26 | 2018-11-16 | 深圳佳比泰智能照明股份有限公司 | A kind of smart home coal gas control method |
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| CN110579294A (en) * | 2019-08-28 | 2019-12-17 | 广东美的厨房电器制造有限公司 | Temperature correction method, cooking utensil and medium |
| CN110657460A (en) * | 2019-09-20 | 2020-01-07 | 浙江帅丰电器股份有限公司 | Kitchen safety assistance, screen-off control and health reminding system and working method |
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Effective date of registration: 20221229 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528311 Yongan Road, Beijiao Town, Shunde District, Foshan, Guangdong 6 Patentee before: GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |