CN108302563A - Gas-cooker and its control method - Google Patents
Gas-cooker and its control method Download PDFInfo
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- CN108302563A CN108302563A CN201810028701.4A CN201810028701A CN108302563A CN 108302563 A CN108302563 A CN 108302563A CN 201810028701 A CN201810028701 A CN 201810028701A CN 108302563 A CN108302563 A CN 108302563A
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- 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
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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Abstract
The present invention discloses a kind of control method and gas-cooker of gas-cooker, wherein the control method of the gas-cooker includes：Obtain the detection temperature of bottom of pot body；According to the rate of temperature change of the detection temperature computation bottom of pot body, wherein the amplitude of variation of detection temperature in the rate of temperature change reaction time section；Compare rate of temperature change and the first default warm variability；When the rate of temperature change is less than or equal to the first default warm variability, acquisition is corresponding with current detection temperature to have water to cook dry combustion method temperature；When the detection temperature of bottom of pot body has water to cook dry combustion method temperature more than or equal to described in, gas-cooker is closed.Technical solution of the present invention improves the setting precision of dry combustion method temperature, effective anti-dry.
Description
Technical field
The present invention relates to gas-cooker technical field, more particularly to a kind of gas-cooker and its control method.
Background technology
Existing gas-cooker, in use, due to the current culinary art type of None- identified, causing can not accurately be true
The dry combustion method temperature cooked before settled is unfavorable for making for user security so that the control of existing anti-dry is very inaccurate
Use gas-cooker.
Invention content
The main object of the present invention is to provide a kind of control method of gas-cooker, it is intended to improve the control accuracy of anti-dry.
To achieve the above object, the control method of the control method of gas-cooker proposed by the present invention, the gas-cooker includes
Following steps：
Obtain the detection temperature of bottom of pot body；
According to the rate of temperature change of the detection temperature computation bottom of pot body, wherein the rate of temperature change reaction time
The amplitude of variation of detection temperature in section；
Compare rate of temperature change and the first default warm variability；
When the rate of temperature change is less than or equal to the first default warm variability, obtain corresponding with current detection temperature
There is water to cook dry combustion method temperature；
When the detection temperature of bottom of pot body has water to cook dry combustion method temperature more than or equal to described in, gas-cooker is closed.
Preferably, further include after the step of comparison rate of temperature change is with the first default warm variability：
When the rate of temperature change is more than the first default warm variability, anhydrous culinary art dry combustion method temperature is obtained；It is described anhydrous to cook
Dry combustion method temperature of preparing food has water to cook dry combustion method temperature described in being more than；
When the detection temperature of bottom of pot body is more than or equal to the anhydrous culinary art dry combustion method temperature, gas-cooker is closed.
Preferably, burning for the promising gas-cooker of the gas cooker provides the blast tube of combustion gas, on the blast tube
It is provided with solenoid electric valve, the step of closing gas-cooker includes：
Solenoid electric valve is closed, the blast tube of gas-cooker is cut off.
Preferably, liftable temperature sensor is provided in gas-cooker, the detection temperature for obtaining bottom of pot body
Step specifically includes：
Instruction is lighted in acquisition；
According to light instruction rise temperature sensor, until temperature sensor contact pot body bottom, or rest on away from
The position of bottom of pot body pre-determined distance.
Preferably, the rate of temperature change according to detection temperature computation bottom of pot body, wherein the rate of temperature change is anti-
The step of answering the amplitude of variation of detection temperature in the period include：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, T is calculatedK-NTo TKThe standard deviation of N number of detection temperature in section, and by the standard
Difference is denoted as rate of temperature change, wherein TK-NFor the K-N detection temperature, TKTemperature is detected for k-th.
Preferably, the rate of temperature change according to the detection temperature computation bottom of pot body, wherein the temperature change
The step of amplitude of variation of detection temperature, includes in rate reaction time section：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, T is calculatedK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate
SUB=∑s | Ti-Tmean | SUB is denoted as rate of temperature change, wherein T by (i=K-N to K)iFor i-th of detection temperature.
Preferably, the rate of temperature change according to the detection temperature computation bottom of pot body, wherein the temperature change
The step of amplitude of variation of detection temperature, includes in rate reaction time section：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, TK-NTo TKN number of detection temperature T in sectioniMeet：
Detect temperature computation formula Ti=at+b, wherein a is proportionality coefficient, and t is acquisition TiTime, b is temperature-compensating；
Proportionality coefficient a is calculated according to detection temperature computation formula, a is denoted as rate of temperature change.
Preferably, it is described obtain bottom of pot body detection temperature the step of after further include：
Determination temperature and the first preset temperature；
When the detection temperature is more than or equal to first preset temperature, gas-cooker is closed.
Preferably, further include after the step of Determination temperature is with the first preset temperature：
When the detection temperature is less than or equal to the second preset temperature, the detection temperature for obtaining bottom of pot body is returned to
The step of spending；Wherein, second preset temperature is less than first preset temperature；
When the detection temperature is more than second preset temperature, and is less than first preset temperature, according to described
Detect the rate of temperature change of temperature computation bottom of pot body.
Preferably, it is described obtain bottom of pot body detection temperature the step of before further include step：
Calculate the heating duration that gas-cooker works as time cooking process；
Compare heating duration and the first preset duration；
When length is more than or equal to the first preset duration when heated, the detection temperature of bottom of pot body is obtained.
Preferably, described when rate of temperature change is less than or equal to the first default warm variability, it obtains and current detection temperature
Spend it is corresponding have water cook dry combustion method temperature the step of specifically include：
When rate of temperature change is less than or equal to the first default warm variability, current detection temperature is denoted as Tb, there is water culinary art
Dry combustion method temperature meets：
TThere is water culinary art=max (w, v*Tb)；
Wherein, w is 200~220 DEG C, and v is 1.2~1.4.
Invention also proposes a kind of gas-cooker, which includes memory, processor and be stored on the memory simultaneously
The computer program that can be run on the processor realizes gas-cooker when the computer program is executed by the processor
The control method of the step of control method, the gas-cooker include the following steps：
Obtain the detection temperature of bottom of pot body；
According to the rate of temperature change of the detection temperature computation bottom of pot body, wherein the rate of temperature change reaction time
The amplitude of variation of detection temperature in section；
Compare rate of temperature change and the first default warm variability；
When the rate of temperature change is less than or equal to the first default warm variability, acquisition has water to cook dry combustion method temperature；
When the detection temperature of bottom of pot body has water to cook dry combustion method temperature more than or equal to described in, gas-cooker is closed.
Technical solution of the present invention obtains the detection temperature of bottom of pot body first；Further according to the detection temperature computation pot body
The rate of temperature change of bottom, wherein the amplitude of variation of detection temperature in the rate of temperature change reaction time section；And compare temperature
Change rate and the first default warm variability, when the rate of temperature change is less than or equal to the first default warm variability, acquisition has water
Cook dry combustion method temperature；Then, it when thering is water to cook dry combustion method temperature described in being more than or equal in the detection temperature of bottom of pot body, closes
Gas-cooker is to stop heating cookware；Temperature is detected by calculating, judges the cooking method in cookware, then obtains and is cooked with this
The corresponding dry combustion method temperature of mode of preparing food so that gas-cooker can accurately judge the working condition of cookware very much, not influence cookware
In the case of normal culinary art, gas-cooker is accurately closed to prevent the appearance of dry combustion method phenomenon；Meanwhile passing through the area to cooking method
Point, avoid dry combustion method temperature for unconformable cooking method, so as to avoid anti-dry erroneous judgement the phenomenon that occur so that
User both can smoothly cook food, meanwhile, and be not in dry combustion method phenomenon.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the flow diagram of one embodiment of control method of gas-cooker of the present invention；
Fig. 2 is the principle schematic of the non-contact detection of the detection temperature of the present invention；
Fig. 3 is the principle schematic of the contact measurement of the detection temperature of the present invention；
Fig. 4 is the temperature-time curve for having water cooking method of the different thermal conductivity cookwares of the present invention；
Fig. 5 is the temperature-time curve of the anhydrous cooking method of the present invention；
Fig. 6 is the logical construction schematic diagram of the control method of gas-cooker of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining relative position relation, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The present invention mainly proposes a kind of control method of gas-cooker, is mainly used in gas-cooker control, to increase combustion gas
The control accuracy of stove is avoided the occurrence of dry combustion method phenomenon, or the phenomenon that can not normally being cooked due to erroneous judgement occurs.The present invention passes through
The temperature for detecting cookware bottom, forms the Temperature-time change curve of cookware, by the analysis and research to curve, obtains and work as
Preceding cooking method is to have water culinary art (referring to the temperature time curve 1,2 in Fig. 4), anhydrous culinary art or other cooking methods
(referring to the temperature time curve 3 in Fig. 5), since the temperature that dry combustion method occurs in different cooking methods is different so that according to difference
Cooking method setting dry combustion method temperature when, the precision of dry combustion method temperature can be greatly improved, accurately prevented to be more conducive to
Dry combustion method, and ensure that food can be normal cooked (will not cease fire due to erroneous judgement).It is worth noting that according to Current Temperatures-when
Half interval contour judges that the foundation of current cooking method is to see temperature-time curve whether with the relatively stable horizontal segment of temperature, such as
Fruit curve has horizontal segment (referring to the temperature time curve 1,2 in Fig. 4), then illustrates the temperature in cookware within the period more
Wen Ding illustrates that the cooking process in cookware has the participation of water；If curve does not have horizontal segment, illustrate temperature in cookware when
Between section amplitude of variation it is larger, illustrate that the cooking process in cookware does not have a participation of water, or only a small amount of moisture participates in.
The present invention judges that the good boilers from drying burning temperature of thermal conductivity is low, heat conduction by the thermal conductivity to cooking pot tool again
Property slightly worse boilers from drying burning temperature it is high (referring to the temperature time curve 1,2 in Fig. 4) so that the precision of dry combustion method temperature is further
To raising, the phenomenon that can not being cooked due to erroneous judgement, has not been existed.Change in the Temperature-time for analyzing and studying cookware bent
When line, applicant has used point-device algorithm so that the analysis of curve is very accurate, greatly improved and cooks shape to cookware
The judgement precision of state, more accurately to control cooking process, prevents from doing to effectively raise the control accuracy of gas-cooker
Burn the appearance of phenomenon.
Below by the control method of main description gas-cooker.
Referring to figs. 1 to Fig. 6, in embodiments of the present invention, the control method of the gas-cooker includes the following steps：
S10, the detection temperature for obtaining bottom of pot body；
In the present embodiment, there are many modes that obtain the detection temperature of pot bottom part, such as temperature is arranged on gas-cooker
Detection device, when cookware is cooked on gas-cooker, the temperature-detecting device on gas-cooker examines the temperature of cookware bottom
It surveys；It is of course also possible to which temperature-detecting device is arranged inside cookware, the temperature of detection is transmitted to the main control module of gas-cooker.
Alternatively, by connecting wireless network, detection temperature is obtained from network.
S20, according to the rate of temperature change of the detection temperature computation bottom of pot body, wherein rate of temperature change reaction
The amplitude of variation of detection temperature in period；
Detection temperature is retrieved as continuous action, can be continual continuous detection, or periodically detection,
If be periodically detected, the period is very short, such as 2~100ms.Multiple detection temperature values of detection are calculated or compared
Compared with the changing rule to obtain detection temperature detects the amplitude of variation of temperature to obtain in the period.Rate of temperature change
Calculation can have very much, compare and record as described above, to obtain the changing rule for detecting temperature in the period；
The rate of temperature change of detection temperature can also be calculated by calculating the modes such as standard deviation or matched curve.
S30, rate of temperature change and the first default warm variability are compared；
The rate of temperature change calculated by detection temperature is compared with the first default warm variability, is become to obtain temperature
The magnitude relationship of rate and the first default warm variability.The mode of comparison can have very much, such as be realized by comparing circuit.
S40, when the rate of temperature change is less than or equal to the first default warm variability, obtain and current detection temperature pair
That answers has water to cook dry combustion method temperature；
When rate of temperature change is less than or equal to the first default warm variability, illustrate within the period, the temperature inside cookware
Degree variation is very small, and temperature change corresponds to the curve of time close to level, at this point, having moisture to participate in culinary art inside judgement cookware.
Also, at this point, having boiled in cookware, so that the temperature inside cookware tends towards stability.That is, the culinary art side in cookware at this time
Formula can be the cooking method for having water to participate in such as to steam, stew, boiling, stewing.Acquisition is corresponding with the cooking method to have water to cook dry combustion method temperature
Degree illustrates the moisture in cookware already close to dryouting, if continuing to add that is, when the temperature of cookware is more than to have water to cook dry combustion method temperature
The dry combustion method of cookware will then occur in heat.
About have water cook dry combustion method temperature acquisition, can be preset definite value, have water cook boiling temperature Tb be
110 DEG C -130 DEG C, have water cook dry combustion method temperature could be provided as 190~210 DEG C, for 200 DEG C, or with it is current
Detect corresponding to temperature, different detection temperature correspond to it is different there is water to cook dry combustion method temperature, detection temperature and there is water culinary art to do
There are one-to-one mapping relations between burning temperature.
S50, when the detection temperature of bottom of pot body be more than or equal to it is described there is water to cook dry combustion method temperature when, close combustion gas
Stove.
When the detection temperature of pot bottom part, which is more than or equal to, has water to cook dry combustion method temperature, illustrate the water in cookware at this time
Tap is closely dryouied, and boilers from drying burning and food are burnt in order to prevent, should close gas-cooker, stops the heating to cookware.
In the present embodiment, the detection temperature of bottom of pot body is obtained first；Further according to the detection temperature computation bottom of pot body
Rate of temperature change, wherein the amplitude of variation of detection temperature in rate of temperature change reaction time section；And compare temperature change
Rate and the first default warm variability, when the rate of temperature change is less than or equal to the first default warm variability, acquisition has water culinary art
Dry combustion method temperature；Then, when having water to cook dry combustion method temperature described in being more than or equal in the detection temperature of bottom of pot body, combustion gas is closed
Stove is to stop heating cookware；Temperature is detected by calculating, judges the cooking method in cookware, is then obtained and the culinary art side
The corresponding dry combustion method temperature of formula so that gas-cooker can accurately judge the working condition of cookware very much, and cookware is normal not influencing
In the case of culinary art, gas-cooker is accurately closed to prevent the appearance of dry combustion method phenomenon；Meanwhile by the differentiation to cooking method,
Dry combustion method temperature is avoided for unconformable cooking method, so as to avoid anti-dry erroneous judgement the phenomenon that occur so that use
Family both can smoothly cook food, meanwhile, and be not in dry combustion method phenomenon.
There is water to cook dry combustion method temperature with corresponding to current detection temperature to more accurately obtain, works as rate of temperature change
When less than or equal to the first default warm variability, current detection temperature is denoted as Tb, there is water culinary art dry combustion method temperature to meet：
TThere is water culinary art=max (w, v*Tb)；
Wherein, w is 200~220 DEG C, and v is 1.2~1.4.
In the present embodiment, since rate of temperature change is less than or equal to the first default warm variability, illustrate in pot at this time
In fluidized state, detection temperature at this time is as boiling temperature Tb.It is w or v*T to have water culinary art dry combustion method temperature at this timebIn compared with
Big value.W is for 210 DEG C, boiling temperature TbProportionality coefficient v for 1.3.So so that each boiling temperature all may be used
With accurate, be quickly obtained it is corresponding there is water to cook dry combustion method temperature, be conducive to the control accuracy and the control that improve gas-cooker
Efficiency.
With reference to Fig. 5, in order to more accurately obtain, in the step of comparison rate of temperature change and first preset warm variability
Further include later：
When the rate of temperature change is more than the first default warm variability, anhydrous culinary art dry combustion method temperature is obtained；It is described anhydrous to cook
Dry combustion method temperature of preparing food has water to cook dry combustion method temperature described in being more than；
When the detection temperature of bottom of pot body is more than or equal to the anhydrous culinary art dry combustion method temperature, gas-cooker is closed.
When rate of temperature change is more than the first default warm variability, illustrate that the temperature change of cookware at this time is bigger, temperature
The curve of variation corresponding time does not have horizontal segment, at this point, participating in culinary art without water inside judgement cookware.That is, at this time in cookware
Cooking method can be the cooking method of the anhydrous participation such as decocting, fry, is fried.Obtain anhydrous culinary art dry combustion method corresponding with the cooking method
Temperature illustrates that the temperature in cookware is very high that is, when the temperature of cookware is more than anhydrous culinary art dry combustion method temperature, far super
Go out the temperature needed for cooking food, if continuing to heat, the dry combustion method of cookware will occurs.
Can be preset definite value about the acquisition of anhydrous culinary art dry combustion method temperature, normal temperature when anhydrous culinary art becomes
Change amplitude is larger, and dry combustion method temperature could be provided as 270 DEG C~300 DEG C, for 280 DEG C, or with current detection temperature
Corresponding to degree, different detection temperature corresponds to different anhydrous culinary art dry combustion method temperature, detection temperature and anhydrous culinary art dry combustion method temperature
Between there are one-to-one mapping relations.
It is worth noting that in some embodiments, being additionally provided with the second default warm variability, the second default warm variability is more than
First default warm variability.It is third by dry combustion method temperature setting when rate of temperature change is more than or equal to the second default warm variability
Dry combustion method temperature is cooked, third cooks dry combustion method temperature and is more than anhydrous culinary art dry combustion method temperature.It, can be with i.e. according to temperature-time change curve
Cooking method is divided into the even more class of two classes, three classes, per a kind of corresponding different dry combustion method temperature.By to cooking method
Subdivision so that dry combustion method temperature is further refined, and is conducive to the culinary art accuracy for improving gas-cooker, preferably to prevent pot
There is dry combustion method phenomenon in tool.
For example, when the rate of temperature change is more than the first default warm variability, rate of temperature change and the second default temperature are compared
Variability；
When the rate of temperature change is less than or equal to the described second default warm variability, anhydrous culinary art dry combustion method temperature is obtained
Degree；The anhydrous culinary art dry combustion method temperature has water to cook dry combustion method temperature described in being more than；
When the detection temperature of bottom of pot body is more than or equal to the anhydrous culinary art dry combustion method temperature, gas-cooker is closed；
When the rate of temperature change is more than the described second default warm variability, obtains third and cook dry combustion method temperature；Described
Three culinary art dry combustion method temperature are more than the anhydrous culinary art dry combustion method temperature；
When the detection temperature of bottom of pot body, which is more than or equal to the third, cooks dry combustion method temperature, gas-cooker is closed.
Certainly, in some embodiments, third culinary art dry combustion method temperature can also have water culinary art dry combustion method temperature and anhydrous cook
It is specific as follows between dry combustion method temperature of preparing food：
When the rate of temperature change is more than the first default warm variability, rate of temperature change and the second default warm variability are compared；
When the rate of temperature change is less than or equal to the described second default warm variability, obtains third and cook dry combustion method temperature
Degree；The third culinary art dry combustion method temperature has water to cook dry combustion method temperature described in being more than；
When the detection temperature of bottom of pot body, which is more than or equal to the third, cooks dry combustion method temperature, gas-cooker is closed；
When the rate of temperature change is more than the described second default warm variability, anhydrous culinary art dry combustion method temperature is obtained；The nothing
Water cooks dry combustion method temperature and is more than third culinary art dry combustion method temperature；
When the detection temperature of bottom of pot body is more than or equal to the anhydrous culinary art dry combustion method temperature, gas-cooker is closed.
With reference to Fig. 4, in some embodiments, control gas-cooker in order to be more accurate is judging current culinary art shape
Mode is that the thermal conductivity of cookware is further judged according to detection temperature when having water culinary art, according to the difference of cookware thermal conductivity, if
Set different dry combustion method temperature.The thermal conductivity of cookware is better, and dry combustion method temperature is lower, and thermal conductivity is poorer, and dry combustion method temperature is higher.
It is Determination temperature and the first thermal conductivity temperature on the basis for having water to cook in current cooking method；
First thermal conductivity temperature can be user setting temperature, or the temperature being arranged when manufacture, the temperature with
The thermal conductivity of cookware is related, and in the horizontal line stage for having water to cook, the thermal conductivity of cookware is poorer, and the temperature in the bottom of a pan is higher, cookware
Thermal conductivity it is better, the temperature in the bottom of a pan is lower.
When detecting temperature more than or equal to the first thermal conductivity temperature, the first dry combustion method temperature corresponding with detection temperature is obtained
Degree.
When detecting temperature more than or equal to the first thermal conductivity temperature, illustrate that cookware heat conductivility is poor.In gas-cooker
Inside preset the mapping table one by one between detection temperature and dry combustion method temperature.Mapping table subregion is arranged, between two neighboring subregion
One of boundary line is the first thermal conductivity temperature.When detecting temperature and being more than or equal to the first thermal conductivity temperature, gas-cooker is from temperature
Higher mapping table subregion searches detection temperature, to obtain dry combustion method temperature corresponding with the detection temperature.By right
Mapping table carries out subregion, and regard one of boundary line temperature of subregion as the first thermal conductivity temperature so that gas-cooker can be very fast
Speed accurately obtains dry combustion method temperature, to quickly be made whether the action of the closing gas-cooker.The good metal pan of thermal conductivity
The normal boiling temperature of tool is 110 DEG C~130 DEG C；The normal boiling temperature of the poor marmite cookware of thermal conductivity is 140 DEG C~180
℃.It detects in temperature-dry combustion method temperature map table, has respectively and the dry combustion method temperature corresponding to 110 DEG C~130 DEG C and 140 DEG C~180 DEG C
Degree.
In the present embodiment, after judging current cooking method to there is water culinary art, further according to the Temperature-time of cookware
Curve judges the thermal conductivity of current cookware, in the horizontal segment of temperature-time curve, when temperature is higher, illustrates the heat conduction of cookware
Property is poorer, and dry combustion method temperature at this time is higher；When temperature is lower, illustrate that the thermal conductivity of cookware is better, dry combustion method temperature at this time compared with
It is low；By distinguishing the thermal conductivity of cookware, the setting of dry combustion method temperature is carried out according to specific detection temperature so that dry combustion method temperature obtains
It is more accurate to take, and is conducive to the control accuracy for further improving gas-cooker, goes out in cooking process to effectively prevent
The phenomenon that existing dry combustion method, is conducive to user security, is easily cooked using gas-cooker.
In order to it is clearer, efficiently obtain the first dry combustion method temperature, when detection temperature be more than or equal to the first thermal conductivity
, can be by one in following two mapping relations when temperature, or calculate two simultaneously and average again.The inspection of note at this time
Testing temperature is boiling temperature Tb,
The first mapping relations is：
Wherein, U is 202~214 DEG C, for 208 DEG C, Z1It is 1.2~1.4, for 1.3, F1It is 140~180 DEG C,
For 160 DEG C；
Second of mapping relations be：
The relationship of first dry combustion method temperature and detection temperature meets：
Wherein, S is 45~55 DEG C, for 50 DEG C, Z2It is 1.2~1.4, for 1.3, F2It is 140~180 DEG C, with
For 160 DEG C.
In the present embodiment, since detection temperature is more than or equal to the first thermal conductivity temperature, illustrate that cookware has been located at this time
In fluidized state, detection temperature at this time is as boiling temperature Tb。
In the case where there is water cooking status, different according to cookware thermal conductivity calculate the first dry combustion method temperature by mapping relations below
Degree,
It is calculated with mapping relations in first：
As boiling temperature TbWhen less than or equal to 160 DEG C, the first dry combustion method temperature TFirst dry combustion method temperatureFor U, wherein U be 202~
214 DEG C, for 208 DEG C；
As boiling temperature TbWhen more than 160 DEG C, the first dry combustion method temperature TFirst dry combustion method temperatureFor boiling temperature TbWith proportionality coefficient Z1's
Product；Wherein, Z1It is 1.2~1.4, for 1.3.
It is calculated with mapping relations in second：
As boiling temperature TbWhen less than or equal to 160 DEG C, the first dry combustion method temperature TFirst dry combustion method temperatureFor boiling temperature TbWith temperature
The sum of offset S, wherein S is 45~55 DEG C, for 50 DEG C；
As boiling temperature TbWhen more than 160 DEG C, the first dry combustion method temperature TFirst dry combustion method temperatureFor boiling temperature TbWith proportionality coefficient Z2's
Product, wherein Z2It is 1.2~1.4, for 1.3.
So so that each boiling temperature can be accurate, is quickly obtained under thermal conductivity different conditions, with detection temperature
Spend the corresponding control accuracy and control efficiency for thering is water to cook dry combustion method temperature, being conducive to improve gas-cooker.
Certainly, in some embodiments, in order to further improve the precision of dry combustion method temperature, and dry combustion method temperature speed
It spends, further includes after the step of Determination temperature is with the first thermal conductivity temperature：
When detecting temperature less than the first thermal conductivity temperature, Determination temperature and the second thermal conductivity temperature；
When detecting temperature more than or equal to the second thermal conductivity temperature, the second dry combustion method temperature corresponding with detection temperature is obtained
Degree, the second dry combustion method temperature are less than the first dry combustion method temperature.
In the present embodiment, the mapping table detected between temperature-dry combustion method temperature is divided into three regions, three regions point
Not Wei high temperature anti-dry area, medium temperature anti-dry area and low temperature anti-dry area, the boundary in high temperature anti-dry area and medium temperature anti-dry area
Temperature is the first dry combustion method temperature, and the division temperature in medium temperature anti-dry area and low temperature anti-dry area is the second dry combustion method temperature.Work as detection
Temperature is more than or equal to the second thermal conductivity temperature, and when less than the first thermal conductivity temperature, dry corresponding to current detection temperature
It burns temperature and is located at medium temperature anti-dry area；It is dry corresponding to current detection temperature when detecting temperature less than the second thermal conductivity temperature
It burns temperature and is located at low temperature anti-dry area.
In order to improve the computational accuracy of rate of temperature change, it is accurate that raising cooking method and cooking pot tool thermal conductivity judge
Property, described when rate of temperature change is less than or equal to the first default warm variability, Determination temperature and the first thermal conductivity temperature
The step of include：
When rate of temperature change is less than or equal to the first default warm variability, participate in calculating rate of temperature change M are obtained
Temperature value；
Averaging is weighted to M temperature value, to obtain weighted average, weight from the newest detection temperature obtained to
The detection temperature obtained at first is gradually reduced；
Compare weighted average and the first thermal conductivity temperature.
When rate of temperature change is less than or equal to the first default warm variability, illustrate that cooking method at this time is to have water to cook
It prepares food, needs judge the thermal conductivity of cooking pot tool below, and then obtain the dry combustion method temperature adapted to thermal conductivity.It is right
TK-MTo TKM, section detection temperature be weighted, weight is from the newest detection temperature T obtainedKTo the detection temperature obtained at first
Spend TK-MIt is gradually reduced.
It is newest to be detected since the detection temperature acquired in different time is different compared to the difference of current actual temperature
Temperature more can react current true detection temperature, it is first to be weighted before detection temperature at M in order to improve the accuracy of calculating
Value, then calculate M detection temperature after weighting and carry out mean value calculation.Wherein, weight is from the newest detection temperature T obtainedKExtremely
The detection temperature T obtained at firstK-NIt is gradually reduced so that the weight of the detection temperature of newest acquisition in the calculation is bigger, to make
It is more accurate to obtain result of calculation.
More specifically, weights are indicated with C, TK-NWeights be CK-N, TKWeights be CK, CKMore than CK-N, CKWith 1.0~
For 1.2, CK-NFor 0.8~1.0, from CKTo CK-NGradually to successively decrease, the mode successively decreased can be that linear trend is successively decreased,
It can successively decrease in conic section trend.
By to each detection temperature weighted so that the weight of each detection temperature is adequately embodied so that is counted
The rate of temperature change of calculation is more accurate, and the temperature that can more accurately reflect horizontal segment in temperature-time curve is better
The thermal conductivity etc. for embodying cookware, is conducive to the work for more accurately controlling gas-cooker.
In order to improve more accurately and fast according to detection temperature obtain dry combustion method temperature, it is described when detection temperature be more than or
When person is equal to the first thermal conductivity temperature, obtains and include with the step of detecting temperature corresponding first dry combustion method temperature：
When detecting temperature more than or equal to the first thermal conductivity temperature, from preset detection temperature and the first dry combustion method temperature
Mapping table in, obtain and detect the corresponding first dry combustion method temperature of temperature.
It is worth noting that detection temperature can be corresponded with dry combustion method temperature, or multiple continuous detection temperature
The corresponding same dry combustion method temperature of degree.When detecting temperature and dry combustion method temperature can correspond, dry combustion method temperature can be greatly improved
Precision still in some embodiments, due to cooking the particularity of operating mode, can not accomplish to detect temperature and the one of dry combustion method temperature
One corresponds to, and needs by a detection temperature section (continuous multiple detection temperature) corresponding dry combustion method temperature.The mapping mode is fitted
All mapping modes that should be in the application, i.e. the present embodiment can be combined with other mapped embodiments of the application.
The mode for closing gas-cooker can have very much, name several specific examples and illustrate, and one of which is to close
The burning for closing the promising gas-cooker of the gas cooker provides the blast tube of combustion gas, and Electromagnetic Control is provided on the blast tube
The step of valve, the closing gas-cooker includes：Solenoid electric valve is closed, the blast tube of gas-cooker is cut off.It is another then be
Setting fire extinguishing structure while extinguishing the flame of gas-cooker, cuts off the combustion of gas-cooker when needing to stop heating in gas-cooker
Gas channel.
With reference to Fig. 2 and Fig. 3 liftable is provided in gas-cooker to more accurately obtain the temperature of 10 bottom of pot body
Temperature sensor 20, the step of detection temperature for obtaining pot body 10 bottom specifically includes：
Instruction is lighted in acquisition；
Temperature sensor 20 is risen according to instruction is lighted, until temperature sensor 20 contacts the bottom of pot body 10, Huo Zheting
Stay in the position away from 10 bottom preset distance of pot body.
In the present embodiment, temperature-detecting device 20 is compared burner 30 and is adjusted, and temperature-detecting device detects pot body 10
The mode of temperature has contact measurement and non-contact detection.By the structure for being set as to lift by temperature-detecting device,
Allow temperature-detecting device according to the difference (difference of the bottom of a pan position) of cookware, to adjust the height of temperature-detecting device,
So that temperature-detecting device is adapted to simultaneously accurately detect the temperature of different types of cookware；Meanwhile working as temperature detection
Device when not in use, can store temperature-detecting device, to protect temperature-detecting device, be allowed to not by external environment (dust,
Water etc.) influence, keep accuracy of detection.
In order to improve the judgement precision of gas-cooker, several algorithms of several rate of temperature change are provided below：
The first algorithm, the rate of temperature change according to detection temperature computation bottom of pot body, wherein the temperature change
The step of amplitude of variation of detection temperature, includes in rate reaction time section：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, T is calculatedK-NTo TKThe standard deviation of N number of detection temperature in section, and by the standard
Difference is denoted as rate of temperature change, wherein TK-NFor the K-N detection temperature, TKTemperature is detected for k-th.
Obtain detection temperature TiCollecting quantity K, and compare the size between collection capacity K and preset temperature data bulk N,
When K is more than N, illustrates that the collecting quantity of temperature data at this time is more, the calculating of rate of temperature change can be carried out, or
It says that there is enough data basis (enough heating durations), accurate rate of temperature change can be obtained by calculating.
Standard deviation define be overall constituent parts standard value and its average deviation square arithmetic averageSquare root.It is public
Formula is：
T is calculated firstK-N、TK-N+1、TK-N+2To TKBetween N number of detection temperature average value mu, then with each detection temperature
Spend TiIt is made the difference with it, calculates the difference side of all detection temperature and average value mu, and summed, then ask the difference side of N number of detection temperature
Average value, standard deviation are difference side's average value evolution.
It is calculated by the detection temperature to acquisition, the standard deviation of detection temperature can be accurately obtained very much, to
What is be perfectly clear embodies the amplitude of variation in detection temperature-time section, i.e. rate of temperature change.
In some embodiments, rate of temperature change, the calculating T are calculated in order to more accurateK-NTo TKSection it is N number of
The standard deviation of temperature is detected, and the step of standard deviation is denoted as rate of temperature change specifically includes：
To TK-NTo TKThe N number of detection temperature in section be weighted, weight is from the newest detection temperature T obtainedKTo obtaining at first
The detection temperature T obtainedK-NIt is gradually reduced；
Standard deviation calculating is carried out to N number of detection temperature after weighting, and the standard deviation being calculated is denoted as temperature change
Rate.
It is newest to be detected since the detection temperature acquired in different time is different compared to the difference of current actual temperature
Temperature more can react current and really detect temperature, it is first to be weighted before N number of detection temperature in order to improve the accuracy of calculating
Value, then calculate N number of detection temperature after weighting and carry out standard deviation.Wherein, weight is from the newest detection temperature T obtainedKTo at first
The detection temperature T of acquisitionK-NIt is gradually reduced so that the weight of the detection temperature of newest acquisition in the calculation is bigger, so that meter
It is more accurate to calculate result.
More specifically, weights are indicated with A, TK-NWeights be AK-N, TKWeights be AK, AKMore than AK-N, AKWith 1.0~
For 1.2, AK-NFor 0.8~1.0, from AKTo AK-NGradually to successively decrease, the mode successively decreased can be that linear trend is successively decreased,
It can successively decrease in conic section trend.
It is worth noting that can be only when averaging to detecting temperature weighted；It can also only in detection temperature and put down
During mean value makes the difference, to detecting temperature weighted, it is of course also possible to detecting temperature in two above-mentioned calculating process
It is weighted.
By to each detection temperature weighted so that the weight of each detection temperature is adequately embodied so that is counted
The rate of temperature change of calculation is more accurate, can more accurately reflect whether temperature-time curve has horizontal segment, Yi Jishui
Levelness (stability of detection temperature) of flat section etc., is conducive to the work for more accurately controlling gas-cooker.
Second algorithm, the rate of temperature change according to the detection temperature computation bottom of pot body, wherein the temperature
The step of amplitude of variation of detection temperature, includes in change rate reaction time section：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, T is calculatedK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate
SUB=∑s | Ti-Tmean | SUB is denoted as rate of temperature change, wherein T by (i=K-N to K)iFor i-th of detection temperature.
Obtain detection temperature TiCollecting quantity K, and compare the size between collection capacity K and preset temperature data bulk N,
When K is more than N, illustrates that the collecting quantity of temperature data at this time is more, the calculating of rate of temperature change can be carried out, or
It says that there is enough data basis (enough heating durations), accurate rate of temperature change can be obtained by calculating.
By calculating T firstK-NTo TKThe average value of N number of detection temperature in section, then find out each detection temperature TiWith it is flat
Mean value TmeanAbsolute value of the difference, then N number of average value is summed, to obtain the rate of temperature change in the period.
It is calculated by the detection temperature to acquisition, the standard deviation of detection temperature can be accurately obtained very much, to
What is be perfectly clear embodies the amplitude of variation in detection temperature-time section, i.e. rate of temperature change
In some embodiments, rate of temperature change, the calculating T are calculated in order to more accurateK-NTo TKSection it is N number of
Detect the average value T of temperaturemean, and calculate SUB=∑s | Ti-Tmean | the step of (i=K-N to K) includes：
To TK-NTo TKThe N number of detection temperature in section be weighted, weight is from the newest detection temperature T obtainedKTo obtaining at first
The detection temperature T obtainedK-NIt is gradually reduced；
The average value of N number of detection temperature after weighting is calculated, and calculates SUB=∑s | Ti-Tmean | (i=K-N to K).
It is newest to be detected since the detection temperature acquired in different time is different compared to the difference of current actual temperature
Temperature more can react current and really detect temperature, it is first to be weighted before N number of detection temperature in order to improve the accuracy of calculating
Value, then SUB=∑s are carried out to N number of detection temperature after weighting | Ti-Tmean |.Wherein, weight is from the newest detection temperature obtained
TKTo the detection temperature T obtained at firstK-NIt being gradually reduced so that the weight of the detection temperature of newest acquisition in the calculation is bigger, from
And make result of calculation more accurate.
More specifically, weights are indicated with B, TK-NWeights be BK-N, TKWeights be BK, BKMore than BK-N, BKWith 1.0~
For 1.2, BK-NFor 0.8~1.0, from BKTo BK-NGradually to successively decrease, the mode successively decreased can be that linear trend is successively decreased,
It can successively decrease in conic section trend.
It is worth noting that can be only in the T that averagesmeanWhen to detect temperature TiWeighting；It can also be only in detection temperature
TiWith average value TmeanDuring making the difference, to detecting temperature TiWeighting, it is of course also possible in two above-mentioned calculating process
Detection temperature is weighted.
By to each detection temperature TiWeighting so that the weight of each detection temperature is adequately embodied so that institute
The rate of temperature change of calculating is more accurate, more accurate, sensitivity can reflect whether temperature-time curve has level
The levelness (stability of detection temperature) etc. of section and horizontal segment, is conducive to the work for more accurately controlling gas-cooker.
The third algorithm, the rate of temperature change according to the detection temperature computation bottom of pot body, wherein the temperature
The step of amplitude of variation of detection temperature, includes in change rate reaction time section：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, TK-NTo TKN number of detection temperature T in sectioniMeet：
Detect temperature computation formula Ti=at+b, wherein a is proportionality coefficient, and t is acquisition TiTime, b is temperature-compensating；
Proportionality coefficient a is calculated according to detection temperature computation formula, a is denoted as rate of temperature change.
In the present embodiment, detection temperature T is obtainediCollecting quantity K, and compare collection capacity K and preset temperature data bulk N
Between size, when K be more than N when, illustrate that the collecting quantity of temperature data at this time is more, rate of temperature change can be carried out
Calculating, in other words, have enough data basis (enough heating durations), by calculate can obtain accurate temperature
Change rate.
According to detection temperature computation formula, TiIt is obtained by detection, time t is obtained by time set timing, temperature compensation value b
It is determined according to current cooking environments parameter, environmental parameter includes environment temperature, ambient humidity, the factors such as wind-force.Temperature is mended
The relationship for repaying value b and environmental parameter, is stored with preset preset relation table in gas-cooker, i.e., different environmental parameters corresponds to different
Temperature compensation value b.According to detection temperature computation formula, proportionality coefficient a, a can be calculated and represent the change rate of temperature.
In some embodiments, rate of temperature change is calculated in order to more accurate, finds out the average value of N number of detection temperature,
Average value is substituted into detection temperature computation formula, to calculate the proportionality coefficient a of mean temperature, to improve rate of temperature change
Precision.
It is of course also possible to first to TK-NTo TKThe N number of detection temperature in section be weighted, weight is from the newest detection obtained
Temperature TKTo the detection temperature T obtained at firstK-NIt is gradually reduced；Each detection temperature T is calculated againiProportionality coefficient a, will be different
A is averaging, using the average value acquired as rate of temperature change.
Certainly, in some embodiments, it is also possible to first to TK-NTo TKThe N number of detection temperature in section be weighted, weight from
The detection temperature T of newest acquisitionKTo the detection temperature T obtained at firstK-NIt is gradually reduced, then calculates N number of detection temperature TiRatio
Coefficient aiAverage value amean, rate of temperature change is calculated further according to formula：SUM=∑s | ai-amean|。
The advantages of in summary algorithm, optimization can be combined to above-mentioned algorithm, to further increase temperature change
The precision of rate, to further increase the control accuracy of gas-cooker.
The combination of algorithm 1 and algorithm 2：
Combination one：
The calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as rate of temperature change
Step specifically includes：
Calculate TK-NTo TKSection it is N number of detection temperature standard deviation；
Calculate TK-NTo TKSection it is N number of detection temperature average value Tmean, and calculate SUB=∑s | and Ti-Tmean | (i=K-
N to K), wherein TiFor i-th of detection temperature；
The average value of standard deviation and SUB is calculated, and is denoted as rate of temperature change.
In the present embodiment, the standard deviation of temperature is detected by calculating and the mean value of SUB calculates rate of temperature change so that temperature
The advantages of degree change rate is integrated with algorithm 1 and algorithm 2, effectively raises the computational accuracy of change rate.
In some embodiments, it judges by accident, is calculated by 1 calculated standard deviation of algorithm and by algorithm 2 in order to prevent
The SUB gone out, while when less than or equal to the first default warm variability, just judging that temperature-time curve with horizontal segment, i.e., is just sentenced
Settled preceding cooking method is to have water culinary art.
Combination two：
The calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as rate of temperature change
Step specifically includes：
By TK-NTo TKN number of detection temperature in section is divided into N1、N2And N3Continuous three class value；
Calculate separately the standard deviation STD of N1 detection temperature1, N2The standard deviation STD of a detection temperature2And N3A detection
The standard deviation STD of temperature3；
Calculate N1The average value T of a detection temperaturemean, and calculate SUB1=∑ | Ti-Tmean |, wherein TiIt is examined for i-th
Testing temperature；And calculate and N2The corresponding SUB of a detection temperature2, with N3The corresponding SUB of a detection temperature3；
By STD1、SUB1Or the average value of the two is denoted as and N1The corresponding rate of temperature change of a detection temperature；
By STD2、SUB2Or the average value of the two is denoted as and N2The corresponding rate of temperature change of a detection temperature；
By STD3、SUB3Or the average value of the two is denoted as and N3The corresponding rate of temperature change of a detection temperature.
In the present embodiment, by the way that N number of detection temperature is divided into N1、N2And N3Continuous three class value, i.e., by the temperature in the period
Degree section is divided into three continuous regions, each temperature region corresponds to three calculations so that each temperature region has three
A calculation is it can be selected that i.e. each temperature region can select different calculations according to demand.For example, and N1A inspection
The calculation of the corresponding rate of temperature change of testing temperature has, STD1、SUB1Or the average value of the two.
Certainly, in some embodiments, judge by accident, need the rate of temperature change of three kinds of calculations while being less than in order to prevent
Or equal to the first warm variability in the case of can just be judged as there is water culinary art.
The combination of algorithm 1 and algorithm 3：
Combination one：
The calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as rate of temperature change
Step specifically includes：
Calculate TK-NTo TKSection it is N number of detection temperature standard deviation；
TK-NTo TKN number of detection temperature T in sectioniMeet：
Detect temperature computation formula Ti=at+b, wherein a is proportionality coefficient, and t is acquisition TiTime, b is temperature-compensating；
Proportionality coefficient a is calculated according to detection temperature computation formula；
The average value of standard deviation and a is calculated, and is denoted as rate of temperature change.
In the present embodiment, the standard deviation of temperature is detected by calculating and the mean value of proportionality coefficient a calculates rate of temperature change,
So that rate of temperature change is integrated with the advantages of algorithm 1 and algorithm 3, the computational accuracy of change rate is effectively raised.
In some embodiments, it judges by accident, is calculated by 1 calculated standard deviation of algorithm and by algorithm 3 in order to prevent
The proportionality coefficient a gone out, while when less than or equal to the first default warm variability, just judges temperature-time curve with horizontal segment,
Just judge that current cooking method is to have water culinary art.
Combination two：
The step of calculating proportionality coefficient a according to detection temperature computation formula specifically includes：
By TK-NTo TKN number of detection temperature in section is divided into N1、N2And N3Continuous three class value；
Calculate separately the standard deviation STD of N1 detection temperature1, N2The standard deviation STD of a detection temperature2And N3A detection
The standard deviation STD of temperature3；
N1A detection temperature TiMeet：
Detect temperature computation formula Ti=a1T+b, wherein a1For proportionality coefficient, t is acquisition TiTime, b be temperature mend
It repays；Proportionality coefficient a is calculated according to detection temperature computation formula1；And calculate and N2The corresponding a of a detection temperature2, with N3A detection
The corresponding a of temperature3；；
By STD1、a1Or the average value of the two is denoted as and N1The corresponding rate of temperature change of a detection temperature；
By STD2、a2Or the average value of the two is denoted as and N2The corresponding rate of temperature change of a detection temperature；
By STD3、a3Or the average value of the two is denoted as and N3The corresponding rate of temperature change of a detection temperature.
In the present embodiment, by the way that N number of detection temperature is divided into N1、N2And N3Continuous three class value, i.e., by the temperature in the period
Degree section is divided into three continuous regions, each temperature region corresponds to three calculations so that each temperature region has three
A calculation is it can be selected that i.e. each temperature region can select different calculations according to demand.For example, and N1A inspection
The calculation of the corresponding rate of temperature change of testing temperature has, STD1、a1Or the average value of the two.
Certainly, in some embodiments, judge by accident, need the rate of temperature change of three kinds of calculations while being less than in order to prevent
Or equal to the first warm variability in the case of can just be judged as there is water culinary art.
The combination of algorithm 2 and algorithm 3：
Combination one：
The calculating TK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate SUB=∑s | and Ti-Tmean | (i
=K-N to K), the step of SUB is denoted as rate of temperature change, specifically includes：
Calculate TK-NTo TKSection it is N number of detection temperature average value Tmean, and calculate SUB=∑s | and Ti-Tmean | (i=K-
N to K), wherein Ti is i-th of detection temperature；
TK-NTo TKN number of detection temperature T in sectioniMeet：
Detect temperature computation formula Ti=at+b, wherein a is proportionality coefficient, and t is acquisition TiTime, b is temperature-compensating；
Proportionality coefficient a is calculated according to detection temperature computation formula；
The average value for calculating proportionality coefficient a and SUB, rate of temperature change is denoted as by average value.
In the present embodiment, the mean value of the proportionality coefficient a and SUB of temperature are detected by calculating to calculate rate of temperature change, is made
The advantages of rate of temperature change is integrated with algorithm 2 and algorithm 3 is obtained, the computational accuracy of change rate is effectively raised.
In some embodiments, it judges by accident in order to prevent, it is calculated by 2 calculated SUB of algorithm and by the institute of algorithm 3
Proportionality coefficient a, while when less than or equal to the first default warm variability, just judging temperature-time curve with horizontal segment, i.e.,
Judge that current cooking method is to have water culinary art.
Combination two：
The calculating TK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate SUB=∑s | and Ti-Tmean | (i
=K-N to K) the step of specifically include：
By TK-NTo TKN number of detection temperature in section is divided into N1、N2And N3Continuous three class value；
Calculate the average value T of N1 detection temperaturemean, and calculate SUB1=∑ | Ti-Tmean |, wherein TiIt is examined for i-th
Testing temperature；And calculate and N2The corresponding SUB of a detection temperature2, with N3The corresponding SUB of a detection temperature3；
N1A detection temperature TiMeet：
Detect temperature computation formula Ti=a1T+b, wherein a1For proportionality coefficient, t is acquisition TiTime, b be temperature mend
It repays；Proportionality coefficient a is calculated according to detection temperature computation formula1；And calculate and N2The corresponding a of a detection temperature2, with N3A detection
The corresponding a of temperature3；
By a1、SUB1Or the average value of the two is denoted as and N1The corresponding rate of temperature change of a detection temperature；
By a2、SUB2Or the average value of the two is denoted as and N2The corresponding rate of temperature change of a detection temperature；
By a3、SUB3Or the average value of the two is denoted as and N3The corresponding rate of temperature change of a detection temperature.
In the present embodiment, by the way that N number of detection temperature is divided into N1、N2And N3Continuous three class value, i.e., by the temperature in the period
Degree section is divided into three continuous regions, each temperature region corresponds to three calculations so that each temperature region has three
A calculation is it can be selected that i.e. each temperature region can select different calculations according to demand.For example, and N1A inspection
The calculation of the corresponding rate of temperature change of testing temperature has, a1、SUB1Or the average value of the two.
Certainly, in some embodiments, judge by accident, need the rate of temperature change of three kinds of calculations while being less than in order to prevent
Or equal to the first warm variability in the case of can just be judged as there is water culinary art.
The combination of algorithm 1, algorithm 2 and algorithm 3：
Combination one：
The calculating TK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate SUB=∑s | and Ti-Tmean | (i
=K-N to K), the step of SUB is denoted as rate of temperature change, specifically includes：
Calculate TK-NTo TKSection it is N number of detection temperature standard deviation；
Calculate TK-NTo TKSection it is N number of detection temperature average value Tmean, and calculate SUB=∑s | and Ti-Tmean | (i=K-
N to K), wherein TiFor i-th of detection temperature；
TK-NTo TKN number of detection temperature T in sectioniMeet：
Detect temperature computation formula Ti=at+b, wherein a is proportionality coefficient, and t is acquisition TiTime, b is temperature-compensating；
Proportionality coefficient a is calculated according to detection temperature computation formula；
The average value of calculating standard deviation, SUB and proportionality coefficient a, and it is denoted as rate of temperature change.
In the present embodiment, temperature is calculated by the mean value of the standard deviation of calculating detection temperature, SUB and proportionality coefficient a
Change rate so that rate of temperature change is integrated with the advantages of algorithm 1, algorithm 2 and algorithm 3, effectively raises the calculating of change rate
Precision.
In some embodiments, it judges by accident, by 1 calculated standard deviation of algorithm, is calculated by algorithm 2 in order to prevent
3 calculated proportionality coefficient a of SUB and algorithm, while when less than or equal to the first default warm variability, just judgement temperature-
Time graph has horizontal segment, i.e., just judges that current cooking method is to have water culinary art.
Combination two：
The calculating TK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate SUB=∑s | and Ti-Tmean | (i
=K-N to K) the step of specifically include：
By TK-NTo TKN number of detection temperature in section is divided into N1、N2And N3Continuous three class value；
Calculate N1The average value T of a detection temperaturemean, and calculate SUB1=∑ | Ti-Tmean |, wherein TiIt is examined for i-th
Testing temperature；And calculate and N2The corresponding SUB of a detection temperature2, with N3The corresponding SUB of a detection temperature3；
N1A detection temperature TiMeet：
Detect temperature computation formula Ti=a1T+b, wherein a1For proportionality coefficient, t is acquisition TiTime, b be temperature mend
It repays；Proportionality coefficient a is calculated according to detection temperature computation formula1；And calculate and N2The corresponding a of a detection temperature2, with N3A detection
The corresponding a of temperature3；
Calculate separately the standard deviation STD of N1 detection temperature1, N2The standard deviation STD of a detection temperature2And N3A detection
The standard deviation STD of temperature3；
By a1、STD1、SUB1Or the average value of three is denoted as and N1The corresponding rate of temperature change of a detection temperature；
By a2、STD2、SUB2Or the average value of three is denoted as and N2The corresponding rate of temperature change of a detection temperature；
By a3、STD3、SUB3Or the average value of three is denoted as and N3The corresponding rate of temperature change of a detection temperature.
In the present embodiment, by the way that N number of detection temperature is divided into N1、N2And N3Continuous three class value, i.e., by the temperature in the period
Degree section is divided into three continuous regions, each temperature region corresponds to three calculations so that each temperature region has four
A calculation is it can be selected that i.e. each temperature region can select different calculations according to demand.For example, and N1A inspection
The calculation of the corresponding rate of temperature change of testing temperature has, STD1, proportionality coefficient a, SUB1Or the average value of three.
Certainly, in some embodiments, judge by accident, need the rate of temperature change of four kinds of calculations while being less than in order to prevent
Or equal to the first warm variability in the case of can just be judged as there is water culinary art.
In order to more quickly judge the cooking status (whether dry combustion method) of current cookware, at the acquisition pot body bottom
Further include after the step of detection temperature in portion：
Determination temperature and the first preset temperature；
First preset temperature is higher temperature T1, higher than the normal cooking temp for having water culinary art or anhydrous culinary art, example
Such as, 280~300 DEG C, for 290 DEG C, the first preset temperature according to different cooking methods, different cookware thermal conductivity and
It is fixed, it is of course also possible to rule of thumb or demand is configured by user.
When the detection temperature is more than or equal to first preset temperature, gas-cooker is closed.
When detecting temperature more than or equal to the first preset temperature, illustrate cookware at this time in dry combustion method, Huo Zheyi
Through preparing dry combustion method, it is necessary to it leaves stopping and cookware is heated, therefore, to immediately close off gas-cooker, it is more serious to avoid dry combustion method.
In order to more quickly judge the cooking status of current cookware, in the Determination temperature and the first default temperature
Further include after the step of spending：
When the detection temperature is less than or equal to the second preset temperature, the detection temperature for obtaining bottom of pot body is returned to
The step of spending；Wherein, second preset temperature is less than first preset temperature；
Second preset temperature is lower temperature Tmin, less than the normal cooking temp for having water culinary art or anhydrous culinary art, example
Such as 80~100 DEG C, for 90 DEG C, the second preset temperature is according to different cooking methods, depending on different cookware thermal conductivity, when
It so, can also be by user rule of thumb or demand is configured.
When detecting temperature less than the second preset temperature, illustrate that cookware at this time does not enter distress phase also, temperature is also located
During rising, the temperature apart from dry combustion method is also distant, at this point, the calculating of rate of temperature change need not be carried out.
When the detection temperature is more than second preset temperature, and is less than first preset temperature, according to described
Detect the rate of temperature change of temperature computation bottom of pot body.
When detecting temperature between the first preset temperature and the second preset temperature, cookware is in the critical days of dry combustion method,
It needs to pay high attention to current culinary art situation, at this time, it may be necessary to detect the rate of temperature change of temperature by calculating to judge culinary art side
Formula, and then obtain dry combustion method temperature corresponding with the cooking method.
In order to more accurately calculate rate of temperature change, in order to improve the effective percentage of acquisition testing temperature, in the acquisition
Further include step before the step of detection temperature of bottom of pot body：
Calculate the heating duration that gas-cooker works as time cooking process；
Compare heating duration and the first preset duration；
When length is more than or equal to the first preset duration when heated, the detection temperature of bottom of pot body is obtained.
There are many modes for calculating the heating duration that gas-cooker works as time cooking process, for example, being provided with meter in gas-cooker
When circuit or timer.The timing of heating duration can be started with every course as starting point, or (the food per procedure
The culinary art of object includes multiple processes, needs to add food materials etc. per procedure) start as starting point.First preset duration is set by user
It sets, or related to cooking method and cooking pot tool, when anhydrous culinary art, the first preset duration is shorter, and first is pre- when having water culinary art
If duration is longer；When the thermal conductivity of cooking pot tool is good, the first preset duration is shorter, when the thermal conductivity of cooking pot tool is poor, first
Preset duration is longer.Pass through the setting of the first preset duration so that gas-cooker is just detected temperature after the first preset duration
Degree so that the operating time of temperature sensor shortens, and is conducive to the service life for improving temperature sensor；Advantageously reduce gas-cooker
Calculation amount improves the working efficiency of gas-cooker.
The present invention also proposes a kind of gas-cooker, which includes the memory for the control method for being stored with gas-cooker, should
The concrete scheme of the control method of gas-cooker is with reference to above-described embodiment, since this gas-cooker uses the complete of above-mentioned all embodiments
Portion's technical solution, therefore at least all advantageous effects caused by the technical solution with above-described embodiment, herein no longer one by one
It repeats.Wherein, gas-cooker further includes processor and is stored in the calculating that can be run on the memory and on the processor
Machine program, when the computer program is executed by the processor the step of control method of realization gas-cooker, the control of gas-cooker
Method processed includes the following steps：
Obtain the detection temperature of bottom of pot body；
According to the rate of temperature change of the detection temperature computation bottom of pot body, wherein the rate of temperature change reaction time
The amplitude of variation of detection temperature in section；
Compare rate of temperature change and the first default warm variability；
When the rate of temperature change is less than or equal to the first default warm variability, acquisition has water to cook dry combustion method temperature；
When the detection temperature of bottom of pot body has water to cook dry combustion method temperature more than or equal to described in, gas-cooker is closed.
Preferably, further include after the step of comparison rate of temperature change is with the first default warm variability：
When the rate of temperature change is more than the first default warm variability, anhydrous culinary art dry combustion method temperature is obtained；It is described anhydrous to cook
Dry combustion method temperature of preparing food has water to cook dry combustion method temperature described in being more than；
When the detection temperature of bottom of pot body is more than or equal to the anhydrous culinary art dry combustion method temperature, gas-cooker is closed.
Preferably, burning for the promising gas-cooker of the gas cooker provides the blast tube of combustion gas, on the blast tube
It is provided with solenoid electric valve, the step of closing gas-cooker includes：
Solenoid electric valve is closed, the blast tube of gas-cooker is cut off.
Preferably, liftable temperature sensor is provided in gas-cooker, the detection temperature for obtaining bottom of pot body
Step specifically includes：
Instruction is lighted in acquisition；
According to light instruction rise temperature sensor, until temperature sensor contact pot body bottom, or rest on away from
The position of bottom of pot body pre-determined distance.
Preferably, the rate of temperature change according to detection temperature computation bottom of pot body, wherein the rate of temperature change is anti-
The step of answering the amplitude of variation of detection temperature in the period include：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, T is calculatedK-NTo TKThe standard deviation of N number of detection temperature in section, and by the standard
Difference is denoted as rate of temperature change, wherein TK-NFor the K-N detection temperature, TKTemperature is detected for k-th.
Preferably, the rate of temperature change according to the detection temperature computation bottom of pot body, wherein the temperature change
The step of amplitude of variation of detection temperature, includes in rate reaction time section：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, T is calculatedK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate
SUB=∑s | Ti-Tmean | SUB is denoted as rate of temperature change, wherein T by (i=K-N to K)iFor i-th of detection temperature.
Preferably, the rate of temperature change according to the detection temperature computation bottom of pot body, wherein the temperature change
The step of amplitude of variation of detection temperature, includes in rate reaction time section：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, TK-NTo TKN number of detection temperature T in sectioniMeet：
Detect temperature computation formula Ti=at+b, wherein a is proportionality coefficient, and t is acquisition TiTime, b is temperature-compensating；
Proportionality coefficient a is calculated according to detection temperature computation formula, a is denoted as rate of temperature change.
Preferably, it is described obtain bottom of pot body detection temperature the step of after further include：
Determination temperature and the first preset temperature；
When the detection temperature is more than or equal to first preset temperature, gas-cooker is closed.
Preferably, further include after the step of Determination temperature is with the first preset temperature：
When the detection temperature is less than or equal to the second preset temperature, the detection temperature for obtaining bottom of pot body is returned to
The step of spending；Wherein, second preset temperature is less than first preset temperature；
When the detection temperature is more than second preset temperature, and is less than first preset temperature, according to described
Detect the rate of temperature change of temperature computation bottom of pot body.
Preferably, it is described obtain bottom of pot body detection temperature the step of before further include step：
Calculate the heating duration that gas-cooker works as time cooking process；
Compare heating duration and the first preset duration；
When length is more than or equal to the first preset duration when heated, the detection temperature of bottom of pot body is obtained.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
In the scope of patent protection that other related technical areas are included in the present invention.
Claims (11)
1. a kind of control method of gas-cooker, which is characterized in that the control method of the gas-cooker includes the following steps：
Obtain the detection temperature of bottom of pot body；
According to the rate of temperature change of the detection temperature computation bottom of pot body, wherein in the rate of temperature change reaction time section
Detect the amplitude of variation of temperature；
Compare rate of temperature change and the first default warm variability；
When the rate of temperature change is less than or equal to the first default warm variability, acquisition is corresponding with current detection temperature water
Cook dry combustion method temperature；
When the detection temperature of bottom of pot body has water to cook dry combustion method temperature more than or equal to described in, gas-cooker is closed.
2. the control method of gas-cooker as described in claim 1, which is characterized in that in the comparison rate of temperature change and first
Further include after the step of default temperature variability：
When the rate of temperature change is more than the first default warm variability, anhydrous culinary art dry combustion method temperature is obtained；The anhydrous culinary art is dry
Burn temperature has water to cook dry combustion method temperature more than described；
When the detection temperature of bottom of pot body is more than or equal to the anhydrous culinary art dry combustion method temperature, gas-cooker is closed.
3. the control method of gas-cooker as described in claim 1, which is characterized in that in the comparison rate of temperature change and first
Further include after the step of default temperature variability：
When the rate of temperature change is more than the first default warm variability, rate of temperature change and the second default warm variability are compared；
When the rate of temperature change is less than or equal to the described second default warm variability, obtains third and cook dry combustion method temperature；Institute
State third culinary art dry combustion method temperature has water to cook dry combustion method temperature more than described；
When the detection temperature of bottom of pot body, which is more than or equal to the third, cooks dry combustion method temperature, gas-cooker is closed；
When the rate of temperature change is more than the described second default warm variability, anhydrous culinary art dry combustion method temperature is obtained；It is described anhydrous to cook
Dry combustion method temperature of preparing food is more than the third and cooks dry combustion method temperature；
When the detection temperature of bottom of pot body is more than or equal to the anhydrous culinary art dry combustion method temperature, gas-cooker is closed.
4. the control method of gas-cooker as described in claim 1, which is characterized in that described according to detection temperature computation pot body bottom
The rate of temperature change in portion, wherein the step of amplitude of variation of detection temperature includes in the rate of temperature change reaction time section：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, T is calculatedK-NTo TKThe standard deviation of N number of detection temperature in section, and the standard deviation is denoted as
Rate of temperature change, wherein TK-NFor the K-N detection temperature, TKTemperature is detected for k-th.
5. the control method of gas-cooker as described in claim 1, which is characterized in that described according to the detection temperature computation pot
The rate of temperature change of body bottom, wherein the step of amplitude of variation of detection temperature wraps in the rate of temperature change reaction time section
It includes：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, T is calculatedK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate SUB=
∑ | Ti-Tmean | SUB is denoted as rate of temperature change, wherein T by (i=K-N to K)iFor i-th of detection temperature.
6. the control method of gas-cooker as described in claim 1, which is characterized in that described according to the detection temperature computation pot
The rate of temperature change of body bottom, wherein the step of amplitude of variation of detection temperature wraps in the rate of temperature change reaction time section
It includes：
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K and preset temperature data bulk N；
When the difference of calculating is more than zero, TK-NTo TKN number of detection temperature T in sectioniMeet：
Detect temperature computation formula Ti=at+b, wherein a is proportionality coefficient, and t is acquisition TiTime, b is temperature-compensating；
Proportionality coefficient a is calculated according to detection temperature computation formula, a is denoted as rate of temperature change.
7. the control method of gas-cooker as described in claim 1, which is characterized in that in the detection temperature for obtaining bottom of pot body
Further include after the step of spending：
Determination temperature and the first preset temperature；
When the detection temperature is more than or equal to first preset temperature, gas-cooker is closed.
8. the control method of gas-cooker as claimed in claim 7, which is characterized in that pre- with first in the Determination temperature
If further including after the step of temperature：
When the detection temperature is less than or equal to the second preset temperature, the detection temperature for obtaining bottom of pot body is returned to
Step；Wherein, second preset temperature is less than first preset temperature；
When the detection temperature is more than second preset temperature, and is less than first preset temperature, according to the detection
The rate of temperature change of temperature computation bottom of pot body.
9. the control method of gas-cooker as claimed in any of claims 1 to 8 in one of claims, which is characterized in that in the acquisition pot
Further include step before the step of detection temperature of body bottom：
Calculate the heating duration that gas-cooker works as time cooking process；
Compare heating duration and the first preset duration；
When length is more than or equal to the first preset duration when heated, the detection temperature of bottom of pot body is obtained.
10. the control method of gas-cooker as claimed in any of claims 1 to 8 in one of claims, which is characterized in that described when temperature becomes
When rate is less than or equal to the first default warm variability, the step for having water culinary art dry combustion method temperature corresponding with current detection temperature is obtained
Suddenly it specifically includes：
When rate of temperature change is less than or equal to the first default warm variability, current detection temperature is denoted as Tb, there is water to cook dry combustion method temperature
Degree meets：
TThere is water culinary art=max (w, v*Tb)；
Wherein, w is 200~220 DEG C, and v is 1.2~1.4.
11. a kind of gas-cooker, which is characterized in that including memory, processor and be stored on the memory and can be described
The computer program run on processor realizes such as claims 1 to 10 when the computer program is executed by the processor
Any one of described in gas-cooker control method the step of.
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| CN109237535A (en) * | 2018-09-04 | 2019-01-18 | 佛山市顺德区美的洗涤电器制造有限公司 | The control method and cigarette stove linked system of cigarette stove linkage |
| CN109237534A (en) * | 2018-09-04 | 2019-01-18 | 佛山市顺德区美的洗涤电器制造有限公司 | The control method and cigarette stove linked system of cigarette stove linkage |
| CN109237538A (en) * | 2018-09-04 | 2019-01-18 | 佛山市顺德区美的洗涤电器制造有限公司 | The control method and anti-dry system of anti-dry |
| CN109654550A (en) * | 2019-02-01 | 2019-04-19 | 青岛海尔智能技术研发有限公司 | Gas-cooker and control method for gas-cooker |
| CN110043926A (en) * | 2019-04-15 | 2019-07-23 | 宁波奥克斯电气股份有限公司 | Anti-dry burning device and method, smoke machine, cigarette stove complete set of equipments |
| CN110925807A (en) * | 2019-10-17 | 2020-03-27 | 佛山市云米电器科技有限公司 | Dry burning prevention protection device and method and stove |
| CN112656209A (en) * | 2019-09-27 | 2021-04-16 | 广东美的生活电器制造有限公司 | Dry burning detection method and device and storage medium |
| WO2021077576A1 (en) * | 2019-10-25 | 2021-04-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Detection method, cooking appliance, cooking system, and computer-readable storage medium |
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Effective date of registration: 20221027 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. |