CN108332240B - Gas-cooker and its control method - Google Patents

Gas-cooker and its control method Download PDF

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Publication number
CN108332240B
CN108332240B CN201810028545.1A CN201810028545A CN108332240B CN 108332240 B CN108332240 B CN 108332240B CN 201810028545 A CN201810028545 A CN 201810028545A CN 108332240 B CN108332240 B CN 108332240B
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temperature
detection
detection temperature
rate
cooker
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CN108332240A (en
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戴相录
许曼曼
季俊生
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Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
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Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)

Abstract

The present invention discloses the control method and gas-cooker of a kind of gas-cooker, wherein the control method of the gas-cooker is the following steps are included: obtain the detection temperature of bottom of pot body；Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；When the difference of calculating is greater than zero, T is calculatedK‑NTo TKThe N number of detection temperature in section standard deviation, 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.Technical solution of the present invention improves the setting precision of dry combustion method temperature, effective anti-dry.

Description

Gas-cooker and its control method
Technical field
The present invention relates to gas-cooker technical field, in particular to a kind of gas-cooker and its control method.
Background technique
Existing gas-cooker due to can not accurately identify current culinary art type by algorithm, causes in use Make not determining the dry combustion method temperature currently cooked, so that existing anti-dry control very inaccuracy, unfavorable Gas-cooker is used in user security.
Summary of the invention
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 precision of anti-dry.
To achieve the above object, gas-cooker proposed by the present invention control method the following steps are included:
Obtain the detection temperature of bottom of pot body；
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；
When the difference of calculating is greater than zero, T is calculatedK-NTo TKThe N number of detection temperature in section standard deviation, 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 calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as temperature The step of change rate, 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.
Preferably, the calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as temperature The step of change rate, 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=∑ | 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.
Preferably, the calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as temperature The step of change rate, 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.
Preferably, T is calculated when the difference of calculating is greater than zero describedK-NTo TKSection it is N number of detection temperature standard Difference, and the standard deviation is denoted as rate of temperature change, wherein TK-NFor the K-N detection temperature, TKThe step of temperature is detected for k-th After rapid further include:
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, Determination temperature and the first thermal conductivity Temperature；
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.
Preferably, after the step of Determination temperature is with the first thermal conductivity temperature further include:
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 is less than the first dry combustion method temperature.
Preferably, described when rate of temperature change is less than or equal to the first default warm variability, Determination temperature and the The step of one thermal conductivity temperature includes:
When rate of temperature change is less than or equal to the first default warm variability, obtains and participate in calculating the N number of of rate of temperature change Temperature value；
Averaging is weighted to N number of 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.
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, after the step of Determination temperature is with the first preset temperature further include:
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 greater 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 comprise the steps of:
Gas-cooker is calculated when the heating duration of 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.
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 step of control method, the control method of the gas-cooker the following steps are included:
Obtain the detection temperature of bottom of pot body；
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；
When the difference of calculating is greater than zero, T is calculatedK-NTo TKThe N number of detection temperature in section standard deviation, 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
Technical solution of the present invention obtains the detection temperature of bottom of pot body first；Further according to acquired detection temperature, obtain Detect temperature TiCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；When the difference of calculating is greater than When zero, T is calculatedK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as rate of temperature change, wherein TK-N For the K-N detection temperature, TKTemperature is detected for k-th；It, can be very accurate by calculating the detection temperature of acquisition Obtain the standard deviation of detection temperature, so that is be perfectly clear embodies the amplitude of variation in detection temperature-time section, i.e. temperature Change rate is conducive to the control precision for improving gas-cooker to be conducive to improve the acquisition precision of dry combustion method temperature, effective anti-dry It burns.
Detailed description of the invention
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 technical 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 schematic illustration of the non-contact detection of detection temperature of the invention；
Fig. 3 is the schematic illustration of the contact measurement of detection temperature of the 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；
Fig. 7 is the flow diagram of another embodiment of 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 embodiment
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 description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making 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 in relative positional relationship, the 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 It to be combined with each other, but must be based on can be realized by 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 precision 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 (temperature time curve 1,2 in referring to 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 be arranged dry combustion method temperature when, the precision of dry combustion method temperature can be greatly improved, to be more conducive to accurately preventing Dry combustion method, and guarantee 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 the horizontal segment seen temperature-time curve and whether have temperature relatively stable, such as Fruit curve has horizontal segment (temperature time curve 1,2 in referring to 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, thermally conductive by the thermal conductivity to cooking pot tool again Property slightly worse boilers from drying burning temperature it is high (temperature time curve 1,2 in referring to 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, with more accurate control cooking process, prevents from doing to effectively raise the control precision of gas-cooker Burn the appearance of phenomenon.
Referring to Figure 1 to Figure 7, in embodiments of the present invention, the gas-cooker control method the following steps are included:
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, 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 that will test is transmitted to the main control module of gas-cooker. Alternatively, obtaining detection temperature from network by connection wireless 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.The multiple detection temperature values that will test are calculated or are compared Compared with to obtain the changing rule of detection temperature, to detect the amplitude of variation of temperature in acquisition time section.Rate of temperature change Calculation can have very much, compare and record as described above, to detect the changing rule of temperature in acquisition time section； 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；
It will be compared by detection temperature rate of temperature change calculated with the first default warm variability, to obtain temperature change The size relation of rate and the first default warm variability.The mode of comparison can have very much, such as realize by comparing circuit.
S40, 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 Degree；
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, determining have moisture to participate in culinary art inside 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, which is more than, has water to cook dry combustion method temperature The dry combustion method of cookware will then occur in heat.
It can be preset definite value about the acquisition for having water culinary art dry combustion method temperature, the boiling temperature Tb for having water to cook is 110 DEG C -130 DEG C, have water cook dry combustion method temperature can be set to 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 to cook 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 the rate of temperature change reaction period；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, allows gas-cooker accurately to determine very much the working condition of cookware, and not influencing, cookware is normal In the case where culinary art, gas-cooker is closed accurately 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 with 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.Having water culinary art dry combustion method temperature at this time is w or v*TbIn compared with Big value.W is for 210 DEG C, boiling temperature TbProportionality coefficient v for 1.3.In this way, each boiling temperature is made all may be used With accurate, it is quickly obtained the corresponding control precision and control for having water to cook dry combustion method temperature, being conducive to improve gas-cooker Efficiency.
Referring to Fig. 5, in order to more accurately obtain, in the step of comparison rate of temperature change and first preset warm variability Later further include:
When the rate of temperature change is greater 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 greater 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 greater than the first default warm variability, illustrate that the temperature change of cookware at this time is bigger, temperature The curve for changing the corresponding time does not have horizontal segment, at this point, determining to participate in culinary art without water inside cookware.That is, at this time in cookware Cooking method can be the cooking method of the anhydrous participation such as pan-fried, stir-fry, 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 Temperature needed for cooking food out the dry combustion method of cookware will occur if continuing to heat.
It 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 can be set to 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 greater 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 greater 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, every a kind of corresponding different dry combustion method temperature.By to cooking method Subdivision is conducive to the culinary art accuracy for improving gas-cooker, so that dry combustion method temperature is further refined preferably to prevent pot There is dry combustion method phenomenon in tool.
For example, comparing rate of temperature change and the second default temperature when the rate of temperature change is greater than the first default warm variability 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 greater 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 greater than the described second default warm variability, obtains third and cook dry combustion method temperature；Described Three culinary art dry combustion method temperature are greater than the anhydrous culinary art dry combustion method temperature；
When the detection temperature of bottom of pot body is more than or equal to third culinary art 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 greater 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 greater than；
When the detection temperature of bottom of pot body is more than or equal to third culinary art dry combustion method temperature, gas-cooker is closed；
When the rate of temperature change is greater 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 greater 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.
Referring 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 thering is water to cook in current cooking method；
First thermal conductivity temperature can be user setting temperature, or the temperature being arranged when factory, 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 heating conduction 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, allows gas-cooker very fast Speed accurately obtains dry combustion method temperature, to quickly be made whether the movement 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 casserole cookware of thermal conductivity is 140 DEG C~180 ℃.It detects in temperature-dry combustion method temperature map table, has respectively and 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 thermally conductive 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 precision for further improving gas-cooker, goes out during the cooking process to effectively prevent The phenomenon that existing dry combustion method, is conducive to user security, easily gas-cooker is used to be cooked.
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 are as follows:
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 are as follows:
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, the first dry combustion method temperature is calculated by mapping relations below according to the difference of cookware thermal conductivity 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 greater 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 greater than 160 DEG C, the first dry combustion method temperature TFirst dry combustion method temperatureFor boiling temperature TbWith proportionality coefficient Z2's Product, wherein Z2For 1.2~1.4, for 1.3.
In this way, making each boiling temperature accurate, it is quickly obtained under thermal conductivity different conditions, with detection temperature Spend the corresponding control precision 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 Degree, after the step of Determination temperature is with the first thermal conductivity temperature further include:
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 is less than the first dry combustion method temperature.
In the present embodiment, it will test the mapping table between temperature-dry combustion method temperature and be 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, does corresponding to current detection temperature It burns temperature and is located at medium temperature anti-dry area；When detecting temperature less than the second thermal conductivity temperature, done corresponding to current detection 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, M for participating in calculating rate of temperature change 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 to carry out below to judge the thermal conductivity of cooking pot tool, 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.
The detection temperature as acquired in different time is different compared to the difference of current actual temperature, newest to be detected Temperature more can react current and really detect temperature, it is first to be weighted before M detection temperature 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 weight of the detection temperature of newest acquisition in calculating is bigger, to make It is more accurate to obtain calculated result.
More specifically, weight is indicated with C, TK-NWeight be CK-N, TKWeight be CK, CKGreater 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 successively decrease for linear trend, 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 being 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 of more accurate control 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 greater 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 condition, can not accomplish to detect the one of temperature and dry combustion method temperature One is corresponding, needs by a detection temperature section (continuous multiple detection temperature) corresponding dry combustion method temperature.The mapping mode is fitted Should all mapping modes in the application, i.e. the present embodiment can combine with other mapped embodiments of the application.
The mode for closing gas-cooker can have very much, name several specific examples and be illustrated, and one of which is pass The burning for closing the promising gas-cooker of the gas cooker provides the blast tube of combustion gas, is provided with Electromagnetic Control on the blast tube The step of valve, the closing gas-cooker includes: closing solenoid electric valve, cuts off the blast tube of gas-cooker.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.
Liftable is provided in gas-cooker referring to Fig. 2 and Fig. 3 in order to more accurately obtain the temperature of 10 bottom of pot body Temperature sensor 20, it is described obtain 10 bottom of pot body detection temperature the step of specifically include:
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 go up and down 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 and the temperature of the different types of cookware of accurate detection；Meanwhile working as temperature detection Device when not in use, temperature-detecting device can be stored, to protect temperature-detecting device, be allowed to not by external environment (dust, Water etc.) influence, keep detection accuracy.
In order to improve the judgement precision of gas-cooker, several algorithms of several rate of temperature change are provided below:
Referring to Fig. 7, the first algorithm, the rate of temperature change according to detection temperature computation bottom of pot body, wherein described The step of amplitude of variation of detection temperature, includes: in rate of temperature change reaction period
S21, detection temperature T is obtainediCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；
S22, when the difference of calculating be greater than zero when, calculate TK-NTo TKThe standard deviation of N number of detection temperature in section, and should Standard deviation 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 greater 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 Say have enough data basis (enough heating durations), by calculating available accurate rate of temperature change.
Standard deviation define be overall constituent parts standard value and its average deviation square arithmetic average square root.It is public Formula are as follows:
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.
By calculating the detection temperature of acquisition, it can be accurately obtained very much the standard deviation of detection temperature, thus 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.
The detection temperature as acquired in different time is different compared to the difference of current actual temperature, newest to be detected 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 weight of the detection temperature of newest acquisition in calculating is bigger, so that meter It is more accurate to calculate result.
More specifically, weight is indicated with A, TK-NWeight be AK-N, TKWeight be AK, AKGreater 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 successively decrease for linear trend, It can successively decrease in conic section trend.
It is worth noting that can be only when averaging to detection temperature weighted；It can also only in detection temperature and put down During mean value makes the difference, to detection temperature weighted, it is of course also possible to detection 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 being 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 of more accurate control 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 period
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；
When the difference of calculating is greater than zero, T is calculatedK-NTo TKThe average value T of N number of detection temperature in sectionmean, and calculate SUB=∑ | Ti-Tmean | (i=K-N to K), is denoted as rate of temperature change for SUB, wherein TiFor 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 greater 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 Say have enough data basis (enough heating durations), by calculating available accurate rate of temperature change.
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.
By calculating the detection temperature of acquisition, it can be accurately obtained very much the standard deviation of detection temperature, thus 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=∑ | Ti-Tmean | (i=K-N to the step of 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 calculating weighting, and calculate SUB=∑ | Ti-Tmean | (i=K-N to K).
The detection temperature as acquired in different time is different compared to the difference of current actual temperature, newest to be detected 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=∑ is 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 is gradually reduced, so that weight of the detection temperature of newest acquisition in calculating is bigger, from And make calculated result more accurate.
More specifically, weight is indicated with B, TK-NWeight be BK-N, TKWeight be BK, BKGreater 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 successively decrease for linear trend, It can successively decrease in conic section trend.
It is worth noting that can be only in the T that averagesmeanWhen to detection temperature TiWeighting；It can also be only in detection temperature TiWith average value TmeanDuring making the difference, to detection 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 Section and the levelness (stability of detection temperature) of horizontal segment etc., are conducive to the work of more accurate control 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 period
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；
When the difference of calculating is greater 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 greater 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 have enough data basis (enough heating durations) in other words, pass through and calculate available 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 is corresponding different Temperature compensation value b.According to detection temperature computation formula, proportionality coefficient a can be calculated, a represents 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=∑ | 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 precision 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=∑ | 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, rate of temperature change is calculated by the standard deviation and the mean value of SUB that calculate detection temperature, so that warm 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 the calculated standard deviation of algorithm 1 and by algorithm 2 in order to prevent SUB out, while when being less than or equal to the first default warm variability, just determine 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, corresponding three calculations of each temperature region, 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 where 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, rate of temperature change is calculated by the standard deviation and the mean value of proportionality coefficient a that calculate detection temperature, 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 the calculated standard deviation of algorithm 1 and by algorithm 3 in order to prevent Proportionality coefficient a out, while when being less than or equal to the first default warm variability, just determine temperature-time curve with horizontal segment, Just determine that current 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；
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, corresponding three calculations of each temperature region, 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 where 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=∑ | and Ti-Tmean | (i =K-N to K), the step of SUB is denoted as rate of temperature change, specifically include:
Calculate TK-NTo TKSection it is N number of detection temperature average value Tmean, and calculate SUB=∑ | 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 for calculating proportionality coefficient a and SUB, is denoted as rate of temperature change for average value.
In the present embodiment, rate of temperature change is calculated by the mean value of the proportionality coefficient a and SUB of calculating detection temperature, 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 the calculated SUB of algorithm 2 and by the institute of algorithm 3 Proportionality coefficient a, while when being less than or equal to the first default warm variability, just determine temperature-time curve with horizontal segment, i.e., Determine 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=∑ | and Ti-Tmean | (i =K-N was specifically included to the step of K):
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；
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, corresponding three calculations of each temperature region, 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 where 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=∑ | and Ti-Tmean | (i =K-N to K), the step of SUB is denoted as rate of temperature change, specifically include:
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=∑ | 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 standard deviation, SUB and proportionality coefficient a is calculated, and is denoted as rate of temperature change.
In the present embodiment, temperature is calculated by calculating the mean value of the standard deviation for detecting temperature, SUB and proportionality coefficient a Change rate, so that the advantages of rate of temperature change is integrated with algorithm 1, algorithm 2 and algorithm 3, effectively raises the calculating of change rate Precision.
In some embodiments, it judges by accident, by the calculated standard deviation of algorithm 1, is calculated by algorithm 2 in order to prevent SUB and the calculated proportionality coefficient a of algorithm 3, while when being less than or equal to the first default warm variability, just judgement temperature- Time graph has horizontal segment, i.e., just determines 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=∑ | and Ti-Tmean | (i =K-N was specifically included to the step of K):
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, corresponding three calculations of each temperature region, 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 where 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 After the step of detection temperature in portion further include:
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 After the step of spending further include:
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, lower 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, not needing the calculating of progress rate of temperature change.
When the detection temperature is greater 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, Need to pay high attention to current culinary art situation, at this time, it may be necessary to judge culinary art side by the rate of temperature change for calculating detection temperature 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 It is further comprised the steps of: before the step of detection temperature of bottom of pot body
Gas-cooker is calculated when the heating duration of 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 every procedure (food The culinary art of object includes multiple processes, and every procedure needs to add food materials etc.) 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.By the setting of the first preset duration, so that gas-cooker just carries out detection temperature after the first preset duration Degree is conducive to the service life for improving temperature sensor so that the operating time of temperature sensor shortens；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 being stored with the control method of gas-cooker, should The concrete scheme of the control method of gas-cooker is referring to above-described embodiment, since this gas-cooker uses the complete of above-mentioned all embodiments Portion's technical solution, therefore at least all beneficial effects brought 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 the following steps are included:
Obtain the detection temperature of bottom of pot body；
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；
When the difference of calculating is greater than zero, T is calculatedK-NTo TKThe N number of detection temperature in section standard deviation, 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 calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as temperature The step of change rate, 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.
Preferably, the calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as temperature The step of change rate, 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=∑ | 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.
Preferably, the calculating TK-NTo TKThe N number of detection temperature in section standard deviation, and the standard deviation is denoted as temperature The step of change rate, 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.
Preferably, T is calculated when the difference of calculating is greater than zero describedK-NTo TKSection it is N number of detection temperature standard Difference, and the standard deviation is denoted as rate of temperature change, wherein TK-NFor the K-N detection temperature, TKThe step of temperature is detected for k-th After rapid further include:
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, Determination temperature and the first thermal conductivity Temperature；
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.
Preferably, after the step of Determination temperature is with the first thermal conductivity temperature further include:
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 is less than the first dry combustion method temperature.
Preferably, described when rate of temperature change is less than or equal to the first default warm variability, Determination temperature and the The step of one thermal conductivity temperature includes:
When rate of temperature change is less than or equal to the first default warm variability, obtains and participate in calculating the N number of of rate of temperature change Temperature value；
Averaging is weighted to N number of 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.
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, after the step of Determination temperature is with the first preset temperature further include:
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 greater 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 comprise the steps of:
Gas-cooker is calculated when the heating duration of 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 above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all 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 It is included in other related technical areas in scope of patent protection of the invention.

Claims (10)

1. a kind of control method of gas-cooker, which is characterized in that the control method of the gas-cooker the following steps are included:
Obtain the detection temperature of bottom of pot body；
Obtain detection temperature TiCollecting quantity K, and calculate the difference of collecting quantity K Yu preset temperature data bulk N；
When the difference of calculating is greater than zero, T is calculatedK-NTo TKThe N number of detection temperature in section standard deviation, 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；
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, Determination temperature is thermally conductive warm-natured with first Degree；
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.
2. the control method of gas-cooker as described in claim 1, which is characterized in that the calculating TK-NTo TKThe N number of inspection in section The standard deviation of testing temperature, 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 what is obtained at first Detect temperature TK-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 rate of temperature change.
3. the control method of gas-cooker as described in claim 1, which is characterized in that the calculating TK-NTo TKThe N number of inspection in section The standard deviation of testing temperature, and the step of standard deviation 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=∑ | Ti-Tmean | (i=K-N is extremely 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.
4. the control method of gas-cooker as described in claim 1, which is characterized in that the calculating TK-NTo TKThe N number of inspection in section The standard deviation of testing temperature, and the step of standard deviation is denoted as rate of temperature change specifically includes:
By TK-NTo TKN number of detection temperature in section is divided into N1、N2And N3Continuous three class value；
Calculate separately N1The standard deviation STD of a detection temperature1, N2The standard deviation STD of a detection temperature2And N3A detection temperature Standard deviation STD3；
Calculate N1The average value T of a detection temperaturemean, and calculate SUB1=∑ | Ti-Tmean |, wherein TiFor i-th of detection temperature Degree；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.
5. the control method of gas-cooker as described in claim 1, which is characterized in that led in the Determination temperature with first After the step of hot temperature further include:
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, Second dry combustion method temperature is less than the first dry combustion method temperature.
6. the control method of gas-cooker as described in claim 1, which is characterized in that when the rate of temperature change is less than or waits When the first default warm variability, Determination temperature includes: with the step of the first thermal conductivity temperature
When rate of temperature change is less than or equal to the first default warm variability, the N number of temperature for participating in calculating rate of temperature change is obtained Value；
Averaging is weighted to N number of temperature value, to obtain weighted average, weight is from the newest detection temperature obtained at first The detection temperature of acquisition is gradually reduced；
Compare weighted average and the first thermal conductivity temperature.
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 After the step of spending 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.
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 after the step of temperature further include:
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 greater 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 It is further comprised the steps of: before the step of detection temperature of body bottom
Gas-cooker is calculated when the heating duration of 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. 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 is realized when the computer program is executed by the processor as in claim 1 to 9 The step of control method of described in any item gas-cookers.
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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.