CN108420320A - Oven temperature control method, device and computer readable storage medium - Google Patents
Oven temperature control method, device and computer readable storage medium Download PDFInfo
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- CN108420320A CN108420320A CN201810391027.6A CN201810391027A CN108420320A CN 108420320 A CN108420320 A CN 108420320A CN 201810391027 A CN201810391027 A CN 201810391027A CN 108420320 A CN108420320 A CN 108420320A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0664—Accessories
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Abstract
The invention discloses a kind of oven temperature control methods, including:Detect Current Temperatures inside oven;According to the Current Temperatures and preset temperature, the deviation and change of error rate of oven temperature are calculated;The deviation and the change of error rate are subjected to Fuzzy processing, determine corresponding first fuzzy class of the deviation and corresponding second fuzzy class of the change of error rate;According to the mapping relations of preset deviation fuzzy class, change of error rate fuzzy class and control output fuzzy class, corresponding control output fuzzy class under first fuzzy class and second fuzzy class is determined;Fuzzy class is exported according to the determining control, the output power of heating tube in the oven is adjusted, wherein different control output fuzzy class correspond to different output powers.The invention also discloses a kind of oven temperature control device and computer readable storage mediums.The present invention improves the accuracy of oven temperature control.
Description
Technical field
The present invention relates to a kind of oven technology field more particularly to oven temperature control method, device and computer-readable storages
Medium.
Background technology
With the improvement of living standards, oven has been widely used, great convenience is brought to daily life.Mesh
Before, when using oven heat food, compared generally by by measuring temperature and user's set temperature, if measuring temperature
It is then heated less than set temperature, stops heating if measuring temperature is higher than set temperature.Due to utilizing heat-generating pipe to oven
Working region carries out heating and has certain temperature change delay effect, thus actually control obtained oven temperature will appear compared with
Big fluctuation, the accuracy for being susceptible to situation too high or too low for temperature namely oven temperature control be not high.
Invention content
It is a primary object of the present invention to propose a kind of oven temperature control method, device and computer readable storage medium, purport
In the not high technical problem of the accuracy for solving oven temperature control in the prior art.
To achieve the above object, the present invention provides a kind of oven temperature control method, and the oven temperature control method includes following step
Suddenly:
Detect Current Temperatures inside oven;
According to the Current Temperatures and preset temperature, the deviation and change of error rate of oven temperature are calculated;
The deviation and the change of error rate are subjected to Fuzzy processing, determine that the deviation corresponding first obscures
Grade and corresponding second fuzzy class of the change of error rate;
It is closed according to the mapping of preset deviation fuzzy class, change of error rate fuzzy class and control output fuzzy class
System determines corresponding control output fuzzy class under first fuzzy class and second fuzzy class;
Fuzzy class is exported according to the determining control, the output power of heating tube in the oven is adjusted,
Wherein, different control output fuzzy class corresponds to different output powers.
Preferably, described fuzzy according to preset deviation fuzzy class, change of error rate fuzzy class and control output
The mapping relations of grade determine corresponding control output fuzzy class under first fuzzy class and second fuzzy class
The step of after, further include:
Control output fuzzy class is subjected to anti fuzzy method processing, obtains corresponding control output quantity;
It is described that fuzzy class is exported according to the determining control, the output power of heating tube in the oven is adjusted
The step of section includes:
It is right according to the control output quantity and the mapping relations of preset control output quantity and heating tube output power
The output power of the heating tube is adjusted.
Preferably, described that control output fuzzy class is subjected to anti fuzzy method processing, obtain corresponding control output
The step of amount includes:
Control output fuzzy class is subjected to anti fuzzy method processing using gravity model appoach, obtains the control output quantity.
Preferably, described according to the control output quantity and preset control output quantity and heating tube output power
Mapping relations, the step of output power of the heating tube is adjusted include:
According to the mapping of the control output quantity and preset control output quantity and the make-and-break time ratio of oven relay
The make-and-break time ratio of the relay is adjusted in relationship, to control the output power of the heating tube.
Preferably, described that the deviation and the change of error rate are subjected to Fuzzy processing, determine the deviation pair
The step of the first fuzzy class and the change of error rate answered corresponding second fuzzy class includes:
The deviation is subjected to Fuzzy processing, the deviation is obtained and corresponds to being subordinate to for multiple preset fuzzy class respectively
Angle value, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as corresponding first fuzzy class of the deviation;
By the change of error rate carry out Fuzzy processing, obtain the change of error rate correspond to respectively it is the multiple
Preset fuzzy class is subordinate to angle value, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as the change of error speed
Corresponding second fuzzy class of rate.
Preferably, include the step of Current Temperatures inside the detection oven:
Using the Current Temperatures in NTC negative temperature coefficient temperature sensors detection oven cavity.
Preferably, include the step of Current Temperatures inside the detection oven:
According to preset detection cycle, it is periodically detected Current Temperatures inside oven.
Preferably, the step of output power to heating tube in the oven is adjusted include:
Make-and-break time ratio of the oven relay within each period is adjusted, to control the output work of the heating tube
Rate.
In addition, to achieve the above object, the present invention also proposes a kind of oven temperature control device, the oven temperature control device packet
It includes:Memory, processor and it is stored in the oven temperature program that can be run on the memory and on the processor, it is described
Oven temperature program realizes the step of oven temperature control method as described above when being executed by the processor.
In addition, to achieve the above object, the present invention also proposes a kind of computer readable storage medium, described computer-readable
It is stored with oven temperature program on storage medium, as described above bake is realized when the oven temperature program is executed by processor
The step of temperature control method.
Scheme proposed by the present invention, by according to the Current Temperatures and preset temperature inside oven, calculating oven temperature
Deviation and change of error rate, and deviation and change of error rate are subjected to Fuzzy processing, determination deviation corresponding the
Then one fuzzy class and corresponding second fuzzy class of change of error rate become according to preset deviation fuzzy class, deviation
Change the mapping relations of rate fuzzy class and control output fuzzy class, it is right under the first fuzzy class and the second fuzzy class to determine
The control output fuzzy class answered, according to identified control output fuzzy class, to the output power of heating tube in oven into
Row is adjusted.It is the knot after deviation and change of error rate Fuzzy processing based on oven temperature due to the output power of heating tube
What fruit was adjusted, and be not directly to be adjusted according to Current Temperatures, this improves the accuracy of oven temperature control.
Description of the drawings
Fig. 1 is the oven temperature control device structural schematic diagram for the hardware running environment that the embodiment of the present invention is related to;
Fig. 2 is the flow diagram of oven temperature control method first embodiment of the present invention;
Fig. 3 be the corresponding multiple fuzzy class of the optional oven temperature deviation of be related to one of the embodiment of the present invention into
The schematic diagram that row degree of membership divides;
Fig. 4 is the corresponding multiple moulds of the optional oven temperature change of error rate of be related to one of the embodiment of the present invention
Paste the schematic diagram that grade carries out degree of membership division;
Fig. 5 is the flow diagram of oven temperature control method second embodiment of the present invention;
Fig. 6 is the temperature rise curve schematic diagram that conventional temperature control method and temperature control method of the present invention is respectively adopted and is heated.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The solution of the embodiment of the present invention is mainly:By according to the Current Temperatures and preset temperature inside oven,
The deviation and change of error rate of oven temperature are calculated, and deviation and change of error rate are subjected to Fuzzy processing, is determined
Corresponding first fuzzy class of deviation and corresponding second fuzzy class of change of error rate are then fuzzy according to preset deviation
The mapping relations of grade, change of error rate fuzzy class and control output fuzzy class, determine the first fuzzy class and second
Corresponding control exports fuzzy class under fuzzy class, fuzzy class is exported according to identified control, to heating tube in oven
Output power be adjusted.Technical solution through the embodiment of the present invention, the accuracy for solving oven temperature control not high are asked
Topic.
The embodiment of the present invention proposes a kind of oven temperature control device.
Referring to Fig.1, Fig. 1 is the oven temperature control device structural representation for the hardware running environment that the embodiment of the present invention is related to
Figure.
In subsequent description, using for indicating that the suffix of such as " module ", " component " or " unit " of element is only
The explanation for being conducive to the present invention, itself does not have a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
As shown in Figure 1, the oven temperature control device may include:Processor 1001, communication bus 1002, user interface
1003, network interface 1004, memory 1005.Wherein, communication bus 1002 is for realizing the connection communication between these components.
User interface 1003 may include display screen (Display), input unit such as keyboard (Keyboard), optional user interface
1003 can also include standard wireline interface and wireless interface.Network interface 1004 may include optionally that the wired of standard connects
Mouth, wireless interface (such as WI-FI interfaces).Memory 1005 can be high-speed RAM memory, can also be stable memory
(non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor
1001 storage device.
It will be understood by those skilled in the art that oven temperature control device structure shown in Fig. 1 is not constituted to oven temperature control
The restriction of device may include either combining certain components or different component cloth than illustrating more or fewer components
It sets.
As shown in Figure 1, as may include that operating system, network are logical in a kind of memory 1005 of computer storage media
Believe module and oven temperature program.
In the present invention, the oven temperature control device calls the oven temperature control stored in memory 1005 by processor 1001
Program, and execute following operation:
Detect Current Temperatures inside oven;
According to the Current Temperatures and preset temperature, the deviation and change of error rate of oven temperature are calculated;
The deviation and the change of error rate are subjected to Fuzzy processing, determine that the deviation corresponding first obscures
Grade and corresponding second fuzzy class of the change of error rate;
It is closed according to the mapping of preset deviation fuzzy class, change of error rate fuzzy class and control output fuzzy class
System determines corresponding control output fuzzy class under first fuzzy class and second fuzzy class;
Fuzzy class is exported according to the determining control, the output power of heating tube in the oven is adjusted,
Wherein, different control output fuzzy class corresponds to different output powers.
Further, processor 1001 can call the oven temperature program stored in memory 1005, also execute following
Operation:
Control output fuzzy class is subjected to anti fuzzy method processing, obtains corresponding control output quantity;
It is right according to the control output quantity and the mapping relations of preset control output quantity and heating tube output power
The output power of the heating tube is adjusted.
Further, processor 1001 can call the oven temperature program stored in memory 1005, also execute following
Operation:
Control output fuzzy class is subjected to anti fuzzy method processing using gravity model appoach, obtains the control output quantity.
Further, processor 1001 can call the oven temperature program stored in memory 1005, also execute following
Operation:
According to the mapping of the control output quantity and preset control output quantity and the make-and-break time ratio of oven relay
The make-and-break time ratio of the relay is adjusted in relationship, to control the output power of the heating tube.
Further, processor 1001 can call the oven temperature program stored in memory 1005, also execute following
Operation:
The deviation is subjected to Fuzzy processing, the deviation is obtained and corresponds to being subordinate to for multiple preset fuzzy class respectively
Angle value, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as corresponding first fuzzy class of the deviation;
By the change of error rate carry out Fuzzy processing, obtain the change of error rate correspond to respectively it is the multiple
Preset fuzzy class is subordinate to angle value, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as the change of error speed
Corresponding second fuzzy class of rate.
Further, processor 1001 can call the oven temperature program stored in memory 1005, also execute following
Operation:
Using the Current Temperatures in NTC negative temperature coefficient temperature sensors detection oven cavity.
Further, processor 1001 can call the oven temperature program stored in memory 1005, also execute following
Operation:
According to preset detection cycle, it is periodically detected Current Temperatures inside oven.
Further, processor 1001 can call the oven temperature program stored in memory 1005, also execute following
Operation:
Make-and-break time ratio of the oven relay within each period is adjusted, to control the output work of the heating tube
Rate.
The present embodiment through the above scheme, by according to the Current Temperatures and preset temperature inside oven, calculating oven
The deviation and change of error rate of temperature, and deviation and change of error rate are subjected to Fuzzy processing, determination deviation corresponds to
The first fuzzy class and corresponding second fuzzy class of change of error rate, then according to preset deviation fuzzy class, partially
The mapping relations of poor rate of change fuzzy class and control output fuzzy class, determine the first fuzzy class and the second fuzzy class
Under corresponding control export fuzzy class, according to identified control output fuzzy class, to the output work of heating tube in oven
Rate is adjusted.After due to the output power of heating tube being deviation and change of error rate Fuzzy processing based on oven temperature
Result be adjusted, and be not directly to be adjusted according to Current Temperatures, this improves the accurate of oven temperature control
Property.
Based on above-mentioned hardware configuration, oven temperature control method embodiment of the present invention is proposed.
It is the flow diagram of oven temperature control method first embodiments of the present invention with reference to Fig. 2, Fig. 2.
In the first embodiment, the oven temperature control method includes the following steps:
Step S10, detection oven inside Current Temperatures;
Step S20 calculates the deviation and change of error speed of oven temperature according to the Current Temperatures and preset temperature
Rate;
The deviation and the change of error rate are carried out Fuzzy processing, determine that the deviation is corresponding by step S30
First fuzzy class and corresponding second fuzzy class of the change of error rate;
Step S40, according to preset deviation fuzzy class, change of error rate fuzzy class and control output fuzzy class
Mapping relations, determine corresponding control output fuzzy class under first fuzzy class and second fuzzy class;
Step S50 exports fuzzy class according to the determining control, to the output power of heating tube in the oven into
Row is adjusted, wherein different control output fuzzy class correspond to different output powers.
Currently, when using oven heat food, compared generally by by measuring temperature and user's set temperature,
If measuring temperature less than being heated if set temperature, if measuring temperature stops heating higher than set temperature.Due to utilizing hair
Heat pipe carries out heating to oven working region and has certain temperature change delay effect, therefore actually controls obtained oven temperature
Degree will appear larger fluctuation, is susceptible to situation too high or too low for temperature, causes food mouthfeel not good enough.
In order to improve the accuracy of oven temperature control, the mouthfeel of the food of oven heat is promoted, the present invention proposes a kind of oven
Temperature control method is applied to oven temperature control device.The oven temperature control device can be independently of the device of oven, can also be set to
In oven.
In the present embodiment, when user carries out heat foods using oven, user is arranged interface according to oven and needs is arranged
The temperature reached, namely setting preset temperature T.During heating food, oven detects oven by oven temperature control device
Internal Current Temperatures T0.Optionally, NTC (Negative Temperature Coefficient, subzero temperature are provided in oven
Spend coefficient) temperature sensor, the Current Temperatures T in oven cavity is detected by the NTC temperature sensors0。
Obtaining Current Temperatures T0Later, according to Current Temperatures T0And preset temperature T, calculate the inclined of oven temperature
Poor e (t)=T0The change of error rate d of-T and oven temperaturee(t)/dt=(T0-T)/t.Later, by the deviation e (t) of calculating
With change of error rate de(t)/dtCarry out Fuzzy processing, the corresponding fuzzy class of determination deviation e (t) and change of error rate
de(t)/dtCorresponding fuzzy class.For ease of description, that the corresponding fuzzy class of deviation e (t) is hereafter known as first is fuzzy etc.
Grade, by change of error rate de(t)/dtCorresponding fuzzy class is known as the second fuzzy class.
Optionally, the step S30 includes:
The deviation is carried out Fuzzy processing, obtains the deviation and correspond to multiple preset fuzzy class respectively by step a
Be subordinate to angle value, and highest is subordinate to the fuzzy class corresponding to angle value to be determined as the deviation corresponding described first fuzzy etc.
Grade;
The change of error rate is carried out Fuzzy processing, obtains the change of error rate and correspond to institute respectively by step b
The angle value that is subordinate to of multiple preset fuzzy class is stated, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as the deviation
Corresponding second fuzzy class of rate of change.
In the present embodiment, it is previously provided with the corresponding multiple fuzzy class of Fuzzy processing.For example, optionally pre-setting
Five fuzzy class, respectively NL, NS, ZO, PS, PL, wherein NL indicates that e (t) is negative, and value is more than preset limit value H;NS
Indicate that e (t) is negative, value is less than H but is more than 0;ZO indicates that zero deflection, i.e. e (t) are 0;PS indicates that e (t) is that just, value is less than H
But it is more than 0;PL indicates that e (t) is that just, value is more than H.By taking a specific example as an example, it is assumed that division circle of fuzzy class is set
Limit value is spent for -2.5 degree, -2, -1 spends, -0.5 spends, 0 degree, 0.5 degree, 1 degree, 2 degree and 2.5 degree, and NL settings are indicated deviation e (t)
< -2 is spent, and NS indicates that -2.5 < e (t) < -0.5 degree, ZO indicate that 1 degree of -1 < e (t) <, PS indicate 2.5 degree of 0.5 < e (t) <, PL
Indicate 2 degree of e (t) >.By multiple fuzzy class carry out degree of membership division, for example, as shown in figure 3, by NL, NS, ZO, PS, PL into
Row degree of membership divides.By taking ZO fuzzy class as an example, it is corresponding that ZO fuzzy class calculates deviation e (t) according to membership function f (x)
ZO fuzzy class is subordinate to angle value, wherein:
Such as, it is assumed that deviation e (t)=0.5 calculates then according to the corresponding membership function f (x) of above-mentioned ZO fuzzy class
The angle value that is subordinate to of the corresponding ZO fuzzy class of deviation e (t) is f (x)=0.5.
In the manner described above, obtain the corresponding multiple preset fuzzy class belonged to of deviation e (t) respectively is subordinate to angle value,
Wherein highest is subordinate to the fuzzy class corresponding to angle value and is determined as corresponding first fuzzy class of deviation e (t).
For change of error rate de(t)/dtCorresponding second fuzzy class, in the same way by change of error rate
de(t)/dtFuzzy processing is carried out, change of error rate d is obtainede(t)/dtBeing subordinate to for multiple preset fuzzy class is corresponded to respectively
Angle value.For example, as shown in figure 4, still by taking five fuzzy class of NL, NS, ZO, PS, PL as an example, according to shown in Fig. 4 by NL, NS, ZO,
PS, PL carry out degree of membership division.Obtaining change of error rate de(t)/dtBeing subordinate to for multiple preset fuzzy class is corresponded to respectively
After angle value, wherein highest is subordinate to the fuzzy class corresponding to angle value and is determined as change of error rate de(t)/dtCorresponding second
Fuzzy class.
In the present embodiment, it is also previously provided with deviation e (t) fuzzy class, change of error rate de(t)/dtFuzzy class and
The mapping relations of control output fuzzy class, for example, as shown in table 1.
Table 1
By Fuzzy processing, corresponding first fuzzy class of deviation e (t) and change of error rate d are obtainede(t)/dtIt is right
After the second fuzzy class answered, according to pre-set deviation e (t) fuzzy class, change of error rate de(t)/dtIt obscures
The mapping relations of grade and control output fuzzy class determine that corresponding control is defeated under the first fuzzy class and the second fuzzy class
Go out fuzzy class.For example, if corresponding first fuzzy class of deviation e (t) is ZO, change of error rate de(t)/dtCorresponding second
Fuzzy class is PS, then inquiry table 1 determines that control output fuzzy class is PS, namely determines that control output rule is PS.
After determining corresponding control output fuzzy class, fuzzy class is exported according to identified control, to roasting
The output power of heating tube is adjusted in case.Wherein, different control output fuzzy class corresponds to different output powers.It can
Selection of land exports fuzzy class according to identified control, the make-and-break time ratio of oven relay is adjusted, to control oven
The output power of heating tube, to reach the required preference temperature of heat foods.
Scheme provided in this embodiment, by according to the Current Temperatures and preset temperature inside oven, calculating oven temperature
The deviation and change of error rate of degree, and deviation and change of error rate are subjected to Fuzzy processing, determination deviation is corresponding
First fuzzy class and corresponding second fuzzy class of change of error rate, then according to preset deviation fuzzy class, deviation
The mapping relations of rate of change fuzzy class and control output fuzzy class, determine under the first fuzzy class and the second fuzzy class
Corresponding control exports fuzzy class, fuzzy class is exported according to identified control, to the output power of heating tube in oven
It is adjusted.After due to the output power of heating tube being deviation and change of error rate Fuzzy processing based on oven temperature
As a result it is adjusted, and is not directly to be adjusted according to Current Temperatures, this improves the accuracy of oven temperature control.
Further, it is based on first embodiment and proposes oven temperature control method second embodiment of the present invention, in the present embodiment,
As shown in figure 5, after the step S40, further include:
Control output fuzzy class is carried out anti fuzzy method processing, obtains corresponding control output quantity by step S60;
The step S50 includes:
Step S51, according to the mapping of the control output quantity and preset control output quantity and heating tube output power
The output power of the heating tube is adjusted in relationship.
By deviation e (t) and change of error rate de(t)/dtAfter carrying out Fuzzy processing, due to that can have deviation e (t)
And/or change of error rate de(t)/dtThe case where corresponding multiple fuzzy class, when this happens, according to preset deviation
The mapping relations of fuzzy class, change of error rate fuzzy class and control output fuzzy class, will obtain multiple corresponding
Control output fuzzy class, to influence the adjusting to the output power of heating tube, and then causes harmful effect to oven temperature control.
In order to further increase the accuracy of oven temperature control, in the present embodiment, when by deviation e (t) and change of error rate
de(t)/dtAfter carrying out Fuzzy processing, if deviation e (t) and/or change of error rate de(t)/dtCorresponding multiple fuzzy class, this
When, anti fuzzy method processing is carried out to control output fuzzy class, obtains corresponding control output quantity u0.Optionally, it will control defeated
Go out fuzzy class and anti fuzzy method processing is carried out using gravity model appoach, obtains corresponding control output quantity u0.For example, using following calculating
Formula calculates control output quantity u0:
Wherein, however, it is determined that control output fuzzy class is i (being assumed to be NS), and based on shown in Fig. 3, ui is its corresponding triangle
The horizontal axis center in region, ∫ μi(u) region area being subordinate in Delta Region under angle value is indicated.
It is understood that being carried out at anti fuzzy method using gravity model appoach in addition to above-mentioned by the way that output fuzzy class will be controlled
Reason obtains corresponding control output quantity u0Mode other than, corresponding control output quantity can also be obtained by other means
u0, for example, control output fuzzy class is carried out anti fuzzy method processing using weighted mean method, obtain corresponding control output quantity
u0.In the present embodiment, the specific algorithm to carrying out anti fuzzy method processing is not restricted.
In the present embodiment, it is also previously provided with the mapping relations of control output quantity and heating tube output power, different controls
Output quantity processed corresponds to different heating tube output powers.Corresponding control output quantity u is obtained when being handled by anti fuzzy method0Afterwards,
According to control output quantity u0, the output power of oven heat pipe is adjusted.
Optionally, the step S51 includes:
Step c, according to the make-and-break time ratio of the control output quantity and preset control output quantity and oven relay
Mapping relations, the make-and-break time ratio of the relay is adjusted, to control the output power of the heating tube.
Optionally, the mapping relations for pre-setting control output quantity and the make-and-break time ratio of oven relay, for difference
Control output quantity correspond to different relay on-off time ratios.Corresponding control output quantity is obtained when being handled by anti fuzzy method
u0Afterwards, according to control output quantity u0And preset control output quantity and the mapping of the make-and-break time ratio of oven relay are closed
System, is adjusted the make-and-break time ratio of oven relay, to control the output power of heating tube.
Scheme provided in this embodiment is obtained corresponding by carrying out anti fuzzy method processing to control output fuzzy class
Control output quantity, and according to the control output quantity and it is preset control output quantity and heating tube output power mapping relations,
The output power of heating tube is adjusted, to further improve the accuracy of oven temperature control.
Further, it is based on the first embodiment or the second embodiment and proposes oven temperature control method 3rd embodiment of the present invention,
In the present embodiment, the step S10 includes:
Step d is periodically detected Current Temperatures inside oven according to preset detection cycle.
In order to further improve the accuracy of oven temperature control, in the present embodiment, pre-sets and examined accordingly into trip temperature
The detection cycle of survey.During oven is heated, according to the preset detection cycle, it is periodically detected inside oven and works as
Preceding temperature T0.Current Temperatures T is detected in each detection cycle0Later, according to the Current Temperatures detected in current period
T0With preset temperature T, deviation e (t)=T of the oven temperature in current period is calculated0- T and change of error rate de(t)/
dt=(T0-T)/t。
Later, by the deviation e (t) and change of error rate d in current periode(t)/dtFuzzy processing is carried out, really
Determine the change of error rate d in the corresponding fuzzy class of deviation e (t) and the current period in current periode(t)/dtCorresponding mould
Grade is pasted, and then determines that the control in current period exports fuzzy class, fuzzy class is exported according to the control in current period
Output power of the heating tube in oven in current period is adjusted.Specific operation process as described in above-described embodiment,
Details are not described herein.It is the introduction adjusted to heating tube output power in a detection cycle above, is controlled according to the temperature
Mode, cycle control temperature of the oven in each detection cycle, to further improve the essence of oven temperature control
Parasexuality.
Optionally, after the control output fuzzy class in each detection cycle of determination, according in each detection cycle
Control output fuzzy class, is adjusted make-and-break time ratio of the oven relay within each period, to control each detection
The output power of heating tube in period.
With initial Current Temperatures T0Be 21 DEG C, preset temperature T be 100 DEG C for, be respectively adopted conventional temperature control method and
Temperature control method of the present invention carries out oven heat experiment, is recorded to the temperature performance index in heating process, obtains temperature and rises song
Line as shown in fig. 6, and temperature performance comparativeanalysis table it is as shown in table 2.
Table 2
By table 2 it is found that comparison and traditional oven temperature control method, using oven temperature control method of the present invention, realize pair
The fast temperature control of oven temperature can more be adjusted oven temperature to fast accurate.
Scheme provided in this embodiment periodically examines oven inside Current Temperatures according to preset detection cycle
It surveys, obtaining control in each detection cycle to carry out Fuzzy processing exports fuzzy class, according in each detection cycle
Control output fuzzy class, is adjusted make-and-break time ratio of the oven relay within each period, controls each detection week
The output power of heating tube in phase, to further improve the accuracy of oven temperature control.
In addition, the embodiment of the present invention also proposes a kind of computer readable storage medium, the computer readable storage medium
On be stored with oven temperature program, following operation is realized when the oven temperature program is executed by processor:
Detect Current Temperatures inside oven;
According to the Current Temperatures and preset temperature, the deviation and change of error rate of oven temperature are calculated;
The deviation and the change of error rate are subjected to Fuzzy processing, determine that the deviation corresponding first obscures
Grade and corresponding second fuzzy class of the change of error rate;
It is closed according to the mapping of preset deviation fuzzy class, change of error rate fuzzy class and control output fuzzy class
System determines corresponding control output fuzzy class under first fuzzy class and second fuzzy class;
Fuzzy class is exported according to the determining control, the output power of heating tube in the oven is adjusted,
Wherein, different control output fuzzy class corresponds to different output powers.
Further, following operation is also realized when the oven temperature program is executed by processor:
Control output fuzzy class is subjected to anti fuzzy method processing, obtains corresponding control output quantity;
It is right according to the control output quantity and the mapping relations of preset control output quantity and heating tube output power
The output power of the heating tube is adjusted.
Further, following operation is also realized when the oven temperature program is executed by processor:
Control output fuzzy class is subjected to anti fuzzy method processing using gravity model appoach, obtains the control output quantity.
Further, following operation is also realized when the oven temperature program is executed by processor:
According to the mapping of the control output quantity and preset control output quantity and the make-and-break time ratio of oven relay
The make-and-break time ratio of the relay is adjusted in relationship, to control the output power of the heating tube.
Further, following operation is also realized when the oven temperature program is executed by processor:
The deviation is subjected to Fuzzy processing, the deviation is obtained and corresponds to being subordinate to for multiple preset fuzzy class respectively
Angle value, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as corresponding first fuzzy class of the deviation;
By the change of error rate carry out Fuzzy processing, obtain the change of error rate correspond to respectively it is the multiple
Preset fuzzy class is subordinate to angle value, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as the change of error speed
Corresponding second fuzzy class of rate.
Further, following operation is also realized when the oven temperature program is executed by processor:
Using the Current Temperatures in NTC negative temperature coefficient temperature sensors detection oven cavity.
Further, following operation is also realized when the oven temperature program is executed by processor:
According to preset detection cycle, it is periodically detected Current Temperatures inside oven.
Further, following operation is also realized when the oven temperature program is executed by processor:
Make-and-break time ratio of the oven relay within each period is adjusted, to control the output work of the heating tube
Rate.
Scheme provided in this embodiment, by according to the Current Temperatures and preset temperature inside oven, calculating oven temperature
The deviation and change of error rate of degree, and deviation and change of error rate are subjected to Fuzzy processing, determination deviation is corresponding
First fuzzy class and corresponding second fuzzy class of change of error rate, then according to preset deviation fuzzy class, deviation
The mapping relations of rate of change fuzzy class and control output fuzzy class, determine under the first fuzzy class and the second fuzzy class
Corresponding control exports fuzzy class, fuzzy class is exported according to identified control, to the output power of heating tube in oven
It is adjusted.After due to the output power of heating tube being deviation and change of error rate Fuzzy processing based on oven temperature
As a result it is adjusted, and is not directly to be adjusted according to Current Temperatures, this improves the accuracy of oven temperature control.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or system including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or system.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions use so that a station terminal equipment (can be mobile phone,
Computer, server or network equipment etc.) execute method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of oven temperature control method, which is characterized in that the oven temperature control method includes the following steps:
Detect Current Temperatures inside oven;
According to the Current Temperatures and preset temperature, the deviation and change of error rate of oven temperature are calculated;
The deviation and the change of error rate are subjected to Fuzzy processing, determine corresponding first fuzzy class of the deviation
The second fuzzy class corresponding with the change of error rate;
The mapping relations of fuzzy class are exported according to preset deviation fuzzy class, change of error rate fuzzy class and control,
Determine corresponding control output fuzzy class under first fuzzy class and second fuzzy class;
Fuzzy class is exported according to the determining control, the output power of heating tube in the oven is adjusted, wherein
Different control output fuzzy class correspond to different output powers.
2. oven temperature control method according to claim 1, which is characterized in that it is described according to preset deviation fuzzy class,
The mapping relations of change of error rate fuzzy class and control output fuzzy class, determine first fuzzy class and described the
After corresponding control exports the step of fuzzy class under two fuzzy class, further include:
Control output fuzzy class is subjected to anti fuzzy method processing, obtains corresponding control output quantity;
It is described that fuzzy class is exported according to the determining control, the output power of heating tube in the oven is adjusted
Step includes:
According to the control output quantity and the mapping relations of preset control output quantity and heating tube output power, to described
The output power of heating tube is adjusted.
3. oven temperature control method according to claim 2, which is characterized in that it is described by the control export fuzzy class into
Row anti fuzzy method processing, obtain corresponding control output quantity the step of include:
Control output fuzzy class is subjected to anti fuzzy method processing using gravity model appoach, obtains the control output quantity.
4. oven temperature control method according to claim 2, which is characterized in that it is described according to the control output quantity, and
The mapping relations of preset control output quantity and heating tube output power, the step that the output power of the heating tube is adjusted
Suddenly include:
It is closed according to the control output quantity and preset control output quantity and the mapping of the make-and-break time ratio of oven relay
System, is adjusted the make-and-break time ratio of the relay, to control the output power of the heating tube.
5. oven temperature control method according to claim 1, which is characterized in that described by the deviation and the change of error
Rate carries out Fuzzy processing, determines corresponding first fuzzy class of the deviation and the change of error rate corresponding second
The step of fuzzy class includes:
The deviation is subjected to Fuzzy processing, obtains the degree of membership that the deviation corresponds to multiple preset fuzzy class respectively
Value, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as corresponding first fuzzy class of the deviation;
The change of error rate is subjected to Fuzzy processing, the change of error rate is obtained and corresponds to the multiple preset respectively
Fuzzy class be subordinate to angle value, and highest is subordinate to the fuzzy class corresponding to angle value and is determined as the change of error rate pair
Second fuzzy class answered.
6. oven temperature control method according to claim 1, which is characterized in that the step of Current Temperatures inside the detection oven
Suddenly include:
Using the Current Temperatures in NTC negative temperature coefficient temperature sensors detection oven cavity.
7. according to claim 1-6 any one of them oven temperature control methods, which is characterized in that current inside the detection oven
The step of temperature includes:
According to preset detection cycle, it is periodically detected Current Temperatures inside oven.
8. oven temperature control method according to claim 7, which is characterized in that the output to heating tube in the oven
The step of power is adjusted include:
Make-and-break time ratio of the oven relay within each period is adjusted, to control the output power of the heating tube.
9. a kind of oven temperature control device, which is characterized in that the oven temperature control device includes:It memory, processor and is stored in
On the memory and the oven temperature program that can run on the processor, the oven temperature program is by the processor
It is realized such as the step of claim 1-8 any one of them oven temperature control methods when execution.
10. a kind of computer readable storage medium, which is characterized in that be stored with oven temperature on the computer readable storage medium
Program is controlled, such as claim 1-8 any one of them ovens temperature control side is realized when the oven temperature program is executed by processor
The step of method.
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CN112773212A (en) * | 2020-12-29 | 2021-05-11 | 深圳拓邦股份有限公司 | Oven temperature control method and device, oven and storage medium |
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