CN109959032A - Electromagnetic oven, cookware kind identification method, device and readable storage medium storing program for executing - Google Patents
Electromagnetic oven, cookware kind identification method, device and readable storage medium storing program for executing Download PDFInfo
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- CN109959032A CN109959032A CN201711418668.8A CN201711418668A CN109959032A CN 109959032 A CN109959032 A CN 109959032A CN 201711418668 A CN201711418668 A CN 201711418668A CN 109959032 A CN109959032 A CN 109959032A
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- cookware
- electromagnetic oven
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- frequency
- centre frequency
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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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
Abstract
The invention discloses a kind of electromagnetic oven, the electromagnetic oven includes master control borad, display board and coil panel, and the electromagnetic oven further includes signal control module, coil terminals and the cookware type identification coil being set on the coil panel；Wherein, the signal control module provides oscillator signal to cookware type identification coil；Described coil terminals one end and the cookware type identification coil are electrically connected, the other end and the preset output module of electromagnetic oven are electrically connected；When placing cooker on electromagnetic oven, the cookware type identification coil and the signal control module identify the cookware to obtain the centre frequency of the cookware, identify the cookware type and by the corresponding feedback information of preset output module sending so that master control borad is based on the centre frequency.The invention also discloses a kind of cookware kind identification method, device and computer readable storage mediums.The present invention is realized when electromagnetic oven is powered, and can be identified to the cookware type on be placed on electromagnetic oven.
Description
Technical field
The present invention relates to kitchen utensils technical field more particularly to a kind of electromagnetic oven, cookware kind identification method, cookware classes
Type identification device and computer-readable readable storage medium storing program for executing.
Background technique
Due to electromagnetic oven compared to traditional gas stove for, there is installation to be simple and convenient to operate and safe and practical etc.
Advantage, so that electromagnetic oven is gradually used by people to replace gas stove, but the use of electromagnetic oven has some limitations, than
Such as, the material of the vessel for being cooked has certain limitation.
For existing electromagnetic oven, can not accurately distinguish the cookware that judgement is placed on electromagnetic oven when in use is
What material, when being cooked using satisfactory cookware vessel, there is no problem, but when use can not be in electromagnetism
When the cookware cooked on furnace, in addition to being damaged to a certain extent to pot, can also there be security risk to a certain extent, such as
Conventional electromagnetic oven cannot be cooked with ceramic soup cooking pot, when being cooked using ceramic cooker, it is likely that because of power mistake
Ceramic cooker is caused to be hardening cracked greatly.
Summary of the invention
The main purpose of the present invention is to provide a kind of electromagnetic oven, cookware kind identification method, cookware type identification devices
And computer readable storage medium, it is intended to solve the problems, such as that electromagnetic oven is unable to judge accurately the type of used cookware.
To achieve the above object, the present invention provides a kind of electromagnetic oven, and the electromagnetic oven includes master control borad, display board and line
Disk is enclosed, the electromagnetic oven further includes signal control module, coil terminals and the cookware type identification being set on the coil panel
Coil；Wherein, the signal control module provides oscillator signal to cookware type identification coil；Described coil terminals one end and institute
The electric connection of cookware type identification coil, the other end and the preset output module of electromagnetic oven is stated to be electrically connected；When being placed on electromagnetic oven
When cookware, the cookware type identification coil and the signal control module are identified the cookware to obtain the cookware
Centre frequency, identify the cookware type and by preset output module sending phase so that master control borad is based on the centre frequency
The feedback information answered.
Further, the signal control module includes pulse width modulation (PWM) generator, oscillating circuit and concussion letter
Number sample circuit, and be sequentially connected in series；Wherein, the input terminal of the pulse width modulation (PWM) generator is the signal control
The output end of the control signal input of molding block, the pulse width modulation (PWM) generator connects the defeated of the oscillating circuit
Enter end, the output end of the oscillating circuit connects the input terminal of the oscillator signal sample circuit；The oscillator signal sampling electricity
The output end on road is the oscillator signal sampled output of the signal control module.
In addition, to achieve the above object, the present invention also provides a kind of cookware kind identification methods, it is applied to electromagnetic oven, institute
Stating electromagnetic oven includes signal control module, cookware type classification coil and coil terminals, and the cookware kind identification method includes
Following steps:
When recognize be placed with cookware on electromagnetic oven when, identify and obtain the corresponding centre frequency of the cookware；
Based on the centre frequency, by the centre frequency with preset best oscillation frequency match it is corresponding to obtain
Matching result；
The type of the cookware is identified based on the matching result.
Preferably, it is described when recognize be placed with cookware on electromagnetic oven when, identify and obtain the corresponding center of the cookware
The step of frequency includes:
When recognize be placed with cookware on electromagnetic oven when, it is right to obtain different concussion voltages institute to be scanned to the cookware
The frequency answered；
Obtain centre frequency corresponding to maximum concussion voltage in the frequency.
Preferably, described to be based on the centre frequency, the centre frequency is matched with best oscillation frequency is preset
Before the step of obtaining corresponding matching result further include:
The identification information of the electromagnetic oven is obtained, and preset best oscillation frequency is obtained based on the identification information.
Preferably, described to be based on the centre frequency, the centre frequency is matched with best oscillation frequency is preset
Include: with the step of obtaining corresponding matching result
Based on the centre frequency, the centre frequency is preset into best oscillation frequency progress difference calculating with described, with
Obtain corresponding calculated result；
The calculated result is compared with default minimal difference to obtain corresponding matching result.
Preferably, the step of type that the cookware is identified based on the matching result includes:
According to the matching result of the calculated result and default minimal difference, identify and really office state cookware type whether
Match with the electromagnetic oven；Wherein
If the calculated result, which is less than to obtain, is equal to the default minimal difference, identify the type of the cookware with it is described
Electromagnetic oven matches；
If the calculated result is greater than the default minimal difference, the type for identifying the cookware and the electromagnetic oven are not
Matching.
After the step of type for identifying the cookware based on the matching result further include:
Based on the type of the cookware, corresponding prompt information is issued.
In addition, to achieve the above object, the present invention also provides a kind of cookware type identification device, described device includes: to deposit
Reservoir, processor and it is stored in the cookware type recognition procedure that can be run on the memory and on the processor, it is described
Cookware type recognition procedure realizes the step of cookware kind identification method as described above when being executed by the processor.
In addition, to achieve the above object, it is described computer-readable the present invention also provides a kind of computer readable storage medium
It is stored with cookware type recognition procedure on storage medium, realizes when the cookware type recognition procedure is executed by processor as above-mentioned
The step of described cookware kind identification method.
A kind of cookware kind identification method that the embodiment of the present invention proposes is placed with corresponding on recognizing electromagnetism furnace apparatus
Cookware when, signal control module and cookware type classification coil based on electromagnetic oven are identified and are obtained in institute's placing cooker
Then frequency of heart matches obtained centre frequency with preset best oscillation frequency, finally obtained according to matching
As a result it identifies the type of placed cookware, and corresponding identification information is issued by corresponding output module.It realizes
Identification identification is carried out to the type of used cookware in electromagnetic oven use process, is effectively avoided in electromagnetic oven use process
The case where requirement of middle cookware type mismatch conjunction electromagnetic oven, generates, and then effectively raises cookware to a certain extent
Service life also effectively raises the safety that electromagnetic oven uses.
Detailed description of the invention
Fig. 1 is applied electromagnetic oven structure schematic diagram by the present invention；
Fig. 2 for the signal control module in the applied electromagnetic oven of the present invention component construction schematic diagram；
Fig. 3 is the electrical schematic diagram of unidirectional one embodiment of partial pressure type circuit of oscillator signal sample circuit；
Fig. 4 is the electrical schematic diagram of unidirectional another embodiment of partial pressure type circuit of oscillator signal sample circuit；
Fig. 5 is the apparatus structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to；
Fig. 6 is the flow diagram of cookware kind identification method first embodiment of the present invention；
Fig. 7 is the refinement flow diagram of step S20 in Fig. 6.
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
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.
As shown in FIG. 1, FIG. 1 is the applied electromagnetic oven structure schematic diagrames of the present invention.
Electromagnetic oven 1 applied by the present invention includes master control borad 2, display board 3 and coil panel 4, further includes signal control mould
Block (not shown), cookware type classification coil 5 and coil terminals 6.Wherein, signal control module (not shown) is known to cookware type
Other coil 5 provides oscillator signal；6 one end of coil terminals and the electric connection of cookware type identification coil 5, the other end and electromagnetic oven 1
Preset output module (not shown) is electrically connected；When placing cooker on electromagnetic oven 1, cookware type identification coil 5 and signal control
Molding block (not shown) identifies cookware to obtain the centre frequency of cookware, for identifying cookware based on the centre frequency
Type simultaneously issues corresponding feedback information by preset output module (not shown).
Further, position set by cookware type classification coil 5 according to mode shown in figure in addition to being arranged and line
It encloses at the center of disk 4, other can also be set and be convenient to be arranged and know otherwise, equally, coil terminals 6 not only can be with
Setting in the position shown in the figure 1, that is, is arranged on master control borad 2, can also be set on display board 3, in the present embodiment, coil
Terminal 6 is connected to preset output module (not shown), and when 6 present position difference of coil list, the form of signal output also has
Institute's difference, for example, if coil terminals 6 are arranged on master control borad 2, can pass through when the type of identified institute's placing cooker
Voice or vibration mode carry out information feedback, if coil terminals 6 are arranged on display board 3, knowledge can be shown on display board 3
Other result is to be fed back.
Further, referring to such as Fig. 2, Fig. 2 is the component construction of the signal control module in applied electromagnetic oven of the invention
Schematic diagram.
As shown in Fig. 2, corresponding signal control module is provided in electromagnetic oven applied by the present invention, for carrying out pot
Corresponding oscillator signal is provided when having type identification.Wherein, signal control module is by pulse width modulation (PWM) generator 11, shake
Swing circuit 7 and oscillator signal and sample 8 circuits composition, connection type specifically: pulse width modulation (PWM) generator 11 it is defeated
Enter the control signal input 9 that end is signal control module, the output end connection concussion electricity of pulse width modulation (PWM) generator 11
The input terminal on road 7, the input terminal of the output end connection oscillator signal sample circuit 8 of oscillating circuit 7；Oscillator signal sample circuit 8
Output end be signal control module oscillator signal sampled output 10.Wherein, pulse width modulation (PWM) generator 11 is defeated
Entering end can connect on master control borad, can also connect on the display panel；It is symmetrical that pulse width modulation (PWM) generator can be NP
IGBT, MOS, triode, can also be generate frequency frequency generator；Oscillating circuit 7 can be series resonant circuit,
It can be antiresonant circuit；Oscillator signal sample circuit can be coupling/induction/resonance manner, be also possible to unidirectionally divide
Formula；The output end of oscillator signal sample circuit 8 can connect on master control borad, can also connect on the display panel.
Further, former referring to the electricity that Fig. 3, Fig. 3 are unidirectional one embodiment of partial pressure type circuit of oscillator signal sample circuit
Reason figure.
Unidirectional partial pressure type circuit as shown in Figure 3 include first capacitor C1, the second capacitor C2, inductance L, first resistor R1,
Second resistance R2,3rd resistor R3, rectifier diode D, wherein one end of first capacitor C1 is the unidirectional partial pressure type circuit
The other end of input terminal, first capacitor C1 is connect with one end of the anode of rectifier diode D, inductance L, and rectifier diode D's is negative
Pole is connect with one end of first resistor R1, one end of the other end of first resistor R1 and second resistance R2,3rd resistor R1 one
One end connection at end, the second capacitor C2, the other end of second resistance R2 are connect with the other end of the second capacitor C2,3rd resistor R3
The other end be the unidirectional partial pressure type circuit output end, the other end, the second electricity of the other end of inductance L and second resistance R2
Hold the other end connection of C2.
It further, is the electricity of unidirectional another embodiment of partial pressure type circuit of oscillator signal sample circuit referring to Fig. 4, Fig. 4
Schematic diagram.
Unidirectional partial pressure type circuit as shown in Figure 4 include first capacitor C1, the second capacitor C2, inductance L, first resistor R1,
Second resistance R2,3rd resistor R3, rectifier diode D, wherein first capacitor C1 is connected in parallel with inductance L, and one end is described
The input terminal of unidirectional partial pressure type circuit, the other end are connect with the anode of rectifier diode D, the cathode of rectifier diode D and first
One end of resistance R1 connects, the other end of first resistor R1 and one end of second resistance R2, one end of 3rd resistor R3, the second electricity
Feel one end connection of C2, the other end of second resistance R2 is connect with the other end of the second inductance C2, the other end of 3rd resistor R3
For the output end of the unidirectional partial pressure type circuit.
As shown in figure 5, Fig. 5 is the apparatus structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to.
The device of that embodiment of the invention can be electromagnetic oven, be also possible to that micro-wave oven etc. is relevant to provide equipment.
As shown in figure 5, the apparatus may include: processor 1001, such as CPU, network interface 1004, user interface
1003, memory 1005, communication bus 1002.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 optionally may include that the wired of standard connects
Mouth, wireless interface (such as WI-FI interface).Memory 1005 can be high speed RAM memory, be also possible to stable memory
(non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor
1001 storage device.
Optionally, device can also include sensor, voicefrequency circuit etc..Wherein, sensor such as optical sensor, movement
Sensor and other sensors.Certainly, device can also configure gyroscope, barometer, hygrometer, thermometer, infrared ray sensing
The other sensors such as device, details are not described herein.
It will be understood by those skilled in the art that the restriction of the not structure paired terminal of apparatus structure shown in Fig. 5, can wrap
It includes than illustrating more or fewer components, perhaps combines certain components or different component layouts.
As shown in figure 5, as may include that operating system, network are logical in a kind of memory 1005 of computer storage medium
Believe module, Subscriber Interface Module SIM and cookware type recognition procedure.
In the arrangement as shown in fig. 5, processor 1001, memory 1005 can be set in cookware type identification device,
The cookware type identification device calls the cookware type recognition procedure stored in memory 1005 by processor 1001, and holds
The following operation of row:
When recognize be placed with cookware on electromagnetic oven when, identify and obtain the corresponding centre frequency of the cookware；
Based on the centre frequency, by the centre frequency with preset best oscillation frequency match it is corresponding to obtain
Matching result；
The type of the cookware is identified based on the matching result.
Further, processor 1001 can call the cookware type recognition procedure stored in memory 1005, also execute
It operates below:
When recognize be placed with cookware on electromagnetic oven when, it is right to obtain different concussion voltages institute to be scanned to the cookware
The frequency answered；
Obtain centre frequency corresponding to maximum concussion voltage in the frequency.
Further, processor 1001 can call the cookware type recognition procedure stored in memory 1005, also execute
It operates below:
The identification information of the electromagnetic oven is obtained, and preset best oscillation frequency is obtained based on the identification information.
Further, processor 1001 can call the cookware type recognition procedure stored in memory 1005, also execute
It operates below:
Based on the centre frequency, the centre frequency is preset into best oscillation frequency progress difference calculating with described, with
Obtain corresponding calculated result；
The calculated result is compared with default minimal difference to obtain corresponding matching result.
Further, processor 1001 can call the cookware type recognition procedure stored in memory 1005, also execute
It operates below:
According to the matching result of the calculated result and default minimal difference, identify and really office state cookware type whether
Match with the electromagnetic oven；Wherein
If the calculated result, which is less than to obtain, is equal to the default minimal difference, identify the type of the cookware with it is described
Electromagnetic oven matches；
If the calculated result is greater than the default minimal difference, the type for identifying the cookware and the electromagnetic oven are not
Matching.
Further, processor 1001 can call the cookware type recognition procedure stored in memory 1005, also execute
It operates below:
Based on the type of the cookware, corresponding prompt information is issued.
It is the flow diagram of cookware kind identification method first embodiment of the present invention referring to Fig. 6, Fig. 6, is applied to electromagnetism
Furnace, electromagnetic oven include signal control module, cookware type classification coil and coil terminals, the cookware kind identification method packet
It includes:
Step S10 is identified when recognizing placing cooker on electromagnetic oven and is obtained the corresponding centre frequency of the cookware；
In the present embodiment, electromagnetic oven further includes having signal control other than including the component that conventional electromagnetic furnace is possessed
Module, cookware type classification coil and coil terminals are powered in electromagnetic oven and place corresponding cookware when on electromagnetic oven, are based on
Signal control module provides oscillator signal, is identified by cookware type classification coil to institute's placing cooker, obtains being placed
The corresponding centre frequency of cookware.Specifically, when electromagnetic oven is powered, when placing cooker is on electromagnetic oven, pass through the knowledge of itself
Other device Direct Recognition obtains frequency corresponding to difference concussion voltage when control circuit acts on current cookware and electromagnetic oven, into
And obtain centre frequency corresponding to maximum concussion voltage in frequency.
In the present embodiment, when being identified to the cookware being placed on electromagnetic oven, specific working method and I-shaped electricity
The working method of sense is similar, wherein the skeleton of I-shaped inductance is by the winding bracket of copper core coil.I-shaped inductance is electronics electricity
One of road or the attribute of device, refer specifically to: when the current changes, generating because of electromagnetic induction and resist some bodies of electric current change
The electromotive force of the biggish fixed inductor of product or adjustable electric sensor (such as oscillator coil, choking coil).In the present embodiment,
When cookware to be placed on electromagnetic oven, because electromagnetic induction makes the concussion voltage for generating a certain size, generated shake is utilized
It swings voltage and obtains corresponding oscillation frequency, then obtain the corresponding centre frequency of maximum concussion voltage data as a comparison.Specifically
Ground presets centre frequency corresponding with ceramic cooker in electromagnetic oven, is placed on electromagnetic oven when by used cookware
When, due to electromagnetic oven itself at this time be suitble to with ceramic cooker carry out it is corresponding cook, pass through the oscillation frequency that will be obtained at this time
It compares and matches with centre frequency data pre-set in electromagnetic oven, to obtain corresponding result, wherein when matching
When, illustrate that the cookware currently placed belongs to ceramic cooker, when mismatching, illustrates the cookware complement currently placed according to ceramics
Cookware.
Step S20 is based on the centre frequency, and the centre frequency is matched with best oscillation frequency is preset to obtain
To corresponding matching result；
In the present embodiment, what the default best oscillation frequency of electromagnetic oven had been set when leaving the factory, and work as and pass through identification
When having obtained the centre frequency of institute's placing cooker, centre frequency is matched with best oscillation frequency is preset directly, passes through two
The comparison and matching of a frequency obtain corresponding matching result.Specifically, the default best oscillation frequency of electromagnetic oven is based on certain
What the cookware of one type was configured, conventional cookware can be divided into ceramic cooker and metal pan, if presetting in electromagnetic oven best
Oscillation frequency is configured based on ceramic cooker, it is obvious that obtained when ceramic cooker is placed on electromagnetic oven
Centre frequency can be matched more with the matching degree for presetting best oscillation frequency, and when using metal pan, it is obtained in
It frequency of heart and presets best oscillation frequency and has biggish offset, and then matching degree is lower.It should be noted that in addition to directly into
The matching of line frequency value judges that centre frequency, can also be simple according to other whether in a certain range of best oscillation frequency
Mode, for example directly carry out difference calculating and difference is judged again.
Step S30 identifies the type of the cookware based on the matching result.
In the present embodiment, according to obtained matching result, the type of institute's placing cooker is identified, it then can also be according to default
Mode issue corresponding prompt information, to inform the current cookware of user if appropriate for being applied to electromagnetic oven, wherein predetermined manner
The configuration settings of concrete foundation electromagnetic oven.Specifically, when identification obtain the centre frequency of institute's placing cooker when, by centre frequency with
Best oscillation frequency is matched, for example the best oscillation frequency of electromagnetic oven is obtained based on ceramic cooker, if obtained
It is matching with result, then identifies that current cookware type is ceramic cooker, if matching result is to mismatch, the type of current cookware
It is not ceramic cooker but metal pan, then in the characteristic according to electromagnetic oven, can be sent out corresponding prompt information.Its
In, the mode that prompt information issues is unlimited, can be voice, is also possible to specific response mode, concrete mode is unlimited.
Specifically, if by the corresponding best oscillation frequency of ceramic cooker preset in current electromagnetic furnace, when will be different
Cookware when being placed on electromagnetic oven, different response results are corresponded to, for example, illustrating suitable when ceramic cooker is placed
Together in the use of this electromagnetic oven, prompt information that sending at this time can be used；When metal pan is placed, illustrate discomfort
Together in this electromagnetic oven, therefore unusable prompt information is issued at this time.At this point, can cooked when using electromagnetic oven
Can accurately be known whether before preparing food currently used cookware whether when ceramic cooker.Equally, if being arranged in electromagnetic oven
Best oscillation frequency is the corresponding oscillation frequency of metal pan, then can effectively avoid electromagnetism cookware in the electromagnetic oven of this type
On use.
A kind of cookware kind identification method that the embodiment of the present invention proposes is placed with corresponding on recognizing electromagnetism furnace apparatus
Cookware when, signal control module and cookware type classification coil based on electromagnetic oven are identified and are obtained in institute's placing cooker
Then frequency of heart matches obtained centre frequency with preset best oscillation frequency, finally obtained according to matching
As a result it identifies the type of placed cookware, and corresponding identification information is issued by corresponding output module.It realizes
Identification identification is carried out to the type of used cookware in electromagnetic oven use process, is effectively avoided in electromagnetic oven use process
The case where requirement of middle cookware type mismatch conjunction electromagnetic oven, generates, and then effectively raises cookware to a certain extent
Service life also effectively raises the safety that electromagnetic oven uses.
Further, step S20, be based on the centre frequency, by the centre frequency and preset best oscillation frequency into
Row matching is to obtain corresponding matching result, before further include:
Step S40 obtains the identification information of the electromagnetic oven, and obtains preset best concussion based on the identification information
Frequency.
In the present embodiment, the best oscillation frequency of electromagnetic oven when leaving the factory and is set, and is powered when electromagnetic oven is in
When state, the best oscillation frequency being stored in corresponding controllers can be obtained.Since (L is inductance to LC, and C is electricity in electromagnetic oven
Hold) for system because of the difference of L and C, corresponding best oscillation frequency is also different, it is primarily due in practical applications, due to L
It is batch production with C, therefore its corresponding inductance value and capacitance are not one fixed value of maintenance, but in certain model
Interior fluctuation is enclosed, so that the best oscillation frequency of the corresponding LC system of each electromagnetic oven is not necessarily identical, simultaneously because different prints
Circuit board (PCB) cabling processed difference, also results in the difference of best oscillation frequency corresponding to different LC systems.Logical
Identification is crossed when obtaining the centre frequency of institute's placing cooker, it will obtain the best oscillation frequency of use electromagnetic oven, be used for into
Row compares and matching.It is to carry out at any time at the time of it should be pointed out that obtaining best oscillation frequency, does not limit to
At the time of mentioned in this present embodiment.
In the present embodiment, best oscillation frequency is referred to for each electromagnetic oven, even if producing using same batch
L and C, obtained best oscillation frequency to a certain extent also can difference, in order to enable best oscillation frequency is more
It is accurate, under type such as can be used and obtained:
1, frequency sweep one: the L that will be produced, C introduce respective tolerance, calculate the corresponding frequency difference range F0 of batch LC
Frequency range between F0~Fm is divided into h (0 < h < 500) section by~Fm (0 < m < 1M), that is, is scanned m/h frequency point, found out most
Frequency Fe corresponding to height concussion voltage.
2, frequency sweep two: diminution swept frequency range, the optimum frequency Fe expansion ± a frequency range that frequency sweep one is found out, i.e. Fe-a <
Fe<Fe+a(0<2a<1M).It is L (0 < L < 500) section by the frequency partition between Fe-a~Fe+a, i.e. scanning (Fe+a-Fe-a)/L
A frequency point finds out frequency Ff corresponding to highest concussion voltage.
3, frequency sweep N: reducing swept frequency range again, the optimum frequency Fk expansion ± b frequency range that last time frequency sweep is found out, i.e.,
Fk-b<Fk<Fk+b(0<2b<1M).It is g (0 < g < 500) section by the frequency partition between Fk-b~Fk+b, i.e. scanning (Fk+b-
Fk-b)/g frequency point finds out frequency F corresponding to highest concussion voltage.
4,100>=N>=1, m>2a>2b, 0hz<F<1Mhz
5, it is recorded in frequency F as best oscillation frequency in control chip, completes frequency sweep work.
In the present embodiment, obtains electromagnetic oven and correspond to the corresponding tolerance value of L, C in LC system and be most worth, and pass through shake
Swing frequency calculation formulaThe boundary to frequency range calculated is most worth, and obtains corresponding frequency based on most value
Range.Then concussion voltage value corresponding to different frequency is calculated, then maximum concussion voltage value pair is obtained based on concussion voltage value
The frequency answered, the acquired corresponding frequency of maximum voltage value is best oscillation frequency at this time, wherein best oscillation frequency
30kHZ-300kHZ is specifically determined by the specific value of L and C in corresponding electromagnetic oven LC system.In order to enable frequency sweep institute
Obtained frequency is best oscillation frequency, unlimited diminution is carried out by the range to frequency sweep, so that obtained frequency is more
Close to best oscillation frequency, in the present embodiment, the frequency that the frequency Fn and the N-1 times frequency sweep obtained when n-th frequency sweep is obtained
When the difference of rate Fn-1 is less than default minimal difference, it can assert that frequency Fn is best oscillation frequency at this time, and saved, when
When the difference of Fn and Fn-1 is greater than default minimal difference, the N+1 times frequency sweep is carried out again, until making adjacent obtained twice
The difference of frequency is less than default minimal difference to obtain best oscillation frequency.
It further, is the refinement flow diagram of step S20 in Fig. 6 referring to Fig. 7, Fig. 7.
Step S201 is based on the centre frequency, by the centre frequency and it is described preset best oscillation frequency carry out it is poor
Value calculates, to obtain corresponding calculated result；
The calculated result is compared with default minimal difference to obtain corresponding matching result by step S202.
In the present embodiment, based on the acquired preset best oscillation frequency of centre frequency and electromagnetic oven, by the two into
Row difference calculates, to obtain the difference of the two.Then obtained calculated result is compared with default minimal difference, and be based on
Comparison result obtains final matching result.Wherein, when centre frequency is greater than best oscillation frequency, subtracted most using centre frequency
Good oscillation frequency obtains difference；When centre frequency is less than best oscillation frequency, subtracts centre frequency using best oscillation frequency and obtain
To difference.
In the present embodiment, when corresponding result is calculated, obtained calculated result and default minimal difference are carried out
Compare be then based on obtaining corresponding comparison result comparison result identification and really the type of office placing cooker whether with made
Electromagnetic oven matches；Wherein, if calculated result, which is less than to obtain, is equal to default minimal difference, the type of the cookware is identified
Match with the electromagnetic oven；If calculated result is greater than default minimal difference, identify that the type of cookware and electromagnetic oven mismatch.
And when obtaining matching result, can predeterminated position on the display panel show matching result " match/mismatch ", can also lead to
It crosses voice mode and issues speech prompt information, be also based on different results and issue different sound, and then inform that user works as
The matching state of preceding cookware and electromagnetic oven.Specifically, the setting for presetting minimal difference has been set in electromagnetic oven factory
, if specific acquisition modes can be electromagnetic oven and use ceramic cooker to obtain best oscillation frequency, random acquisition is same
A batch of ceramic cooker is tested, and obtained centre frequency is analyzed and processed, and obtains the corresponding center of ceramic cooker
The range of frequency, and then in actual use, the corresponding centre frequency of cookware concussion voltage is in obtained frequency range
When, as ceramic cooker, except frequency range is then metal pan.Since the subdivision classification of metal pan is more, compared with
Suitably to be set using ceramic cooker, but it is not limited to only use ceramic cooker and carries out setting for best oscillation frequency
Fixed, the purposes of concrete foundation electromagnetic oven is in different ways.
The present invention also provides a kind of cookware type identification devices.
Cookware type identification device provided by the invention includes: memory, processor and is stored on the memory simultaneously
The cookware type recognition procedure that can be run on the processor, when the cookware type recognition procedure is executed by the processor
The step of realizing cookware kind identification method as described above.
Wherein, the cookware type recognition procedure run on the processor, which is performed realized method, can refer to this
The each embodiment of invention cookware kind identification method, details are not described herein.
Furthermore the embodiment of the present invention also proposes a kind of computer readable storage medium.
Cookware type recognition procedure, the cookware type recognition procedure are stored on computer readable storage medium of the present invention
The step of cookware kind identification method as described above is realized when being executed by processor.
Wherein, the cookware type recognition procedure run on the processor, which is performed realized method, can refer to this
The each embodiment of invention cookware kind identification method, details are not described herein.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include 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 being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, server, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all 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 electromagnetic oven, the electromagnetic oven includes master control borad, display board and coil panel, which is characterized in that the electromagnetic oven
It further include signal control module, coil terminals and the cookware type identification coil being set on the coil panel；Wherein, the letter
Number control module provides oscillator signal to cookware type identification coil；Described coil terminals one end and the cookware type identification line
Circle is electrically connected, the other end and the preset output module of electromagnetic oven are electrically connected；When placing cooker on electromagnetic oven, the cookware class
Type identification coil and the signal control module identify the cookware to obtain the centre frequency of the cookware, for master
Plate is controlled to be based on the centre frequency identification cookware type and issue corresponding feedback information by preset output module.
2. electromagnetic oven as described in claim 1, which is characterized in that the signal control module includes pulse width modulation (PWM)
Generator, oscillating circuit and oscillator signal sample circuit, and be sequentially connected in series；Wherein, the pulse width modulation (PWM) hair
The input terminal of raw device is the control signal input of the signal control module, the pulse width modulation (PWM) generator it is defeated
Outlet connects the input terminal of the oscillating circuit, and the output end of the oscillating circuit connects the defeated of the oscillator signal sample circuit
Enter end；The output end of the oscillator signal sample circuit is the oscillator signal sampled output of the signal control module.
3. a kind of cookware kind identification method is applied to electromagnetic oven, which is characterized in that the electromagnetic oven includes signal control mould
Block, cookware type classification coil and coil terminals, the cookware kind identification method the following steps are included:
When recognize be placed with cookware on electromagnetic oven when, identify and obtain the corresponding centre frequency of the cookware；
Based on the centre frequency, the centre frequency is matched with best oscillation frequency is preset to obtain corresponding match
As a result；
The type of the cookware is identified based on the matching result.
4. cookware kind identification method as claimed in claim 3, which is characterized in that described ought recognize is placed on electromagnetic oven
When cookware, identifies and include: the step of obtaining the cookware corresponding centre frequency
When recognize be placed with cookware on electromagnetic oven when, the cookware is scanned to obtain corresponding to different concussion voltages
Frequency；
Obtain centre frequency corresponding to maximum concussion voltage in the frequency.
5. cookware kind identification method as claimed in claim 3, which is characterized in that it is described to be based on the centre frequency, by institute
State centre frequency with before presetting the step of best oscillation frequency is matched to obtain corresponding matching result further include:
The identification information of the electromagnetic oven is obtained, and preset best oscillation frequency is obtained based on the identification information.
6. cookware kind identification method as claimed in claim 3, which is characterized in that it is described to be based on the centre frequency, by institute
Centre frequency, which is stated, with the step of best oscillation frequency is matched to obtain corresponding matching result is preset includes:
Based on the centre frequency, the centre frequency is preset into best oscillation frequency progress difference calculating with described, to obtain
Corresponding calculated result；
The calculated result is compared with default minimal difference to obtain corresponding matching result.
7. cookware kind identification method as claimed in claim 6, which is characterized in that described to identify institute based on the matching result
The step of stating the type of cookware include:
According to the matching result of the calculated result and default minimal difference, identify and really office state cookware type whether with institute
Electromagnetic oven is stated to match；Wherein
If the calculated result, which is less than, obtains the type for identifying the cookware equal to the default minimal difference and the electromagnetism
Furnace matches；
If the calculated result is greater than the default minimal difference, the type for identifying the cookware and the electromagnetic oven are not
Match.
8. cookware kind identification method as claimed in claim 3, which is characterized in that described to identify institute based on the matching result
After the step of stating the type of cookware further include:
Based on the type of the cookware, corresponding prompt information is issued.
9. a kind of cookware type identification device, which is characterized in that described device includes: memory, processor and is stored in described
On memory and the cookware type recognition procedure that can run on the processor, the cookware type recognition procedure is by the place
Manage the step of realizing the cookware kind identification method as described in any one of claim 3 to 8 when device executes.
10. a kind of computer readable storage medium, which is characterized in that be stored with cookware class on the computer readable storage medium
Type recognizer is realized as described in any one of claim 3 to 8 when the cookware type recognition procedure is executed by processor
The step of cookware kind identification method.
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| CN201711418668.8A CN109959032B (en) | 2017-12-22 | 2017-12-22 | Induction cooker, method and device for identifying type of cookware and readable storage medium |
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| CN201711418668.8A CN109959032B (en) | 2017-12-22 | 2017-12-22 | Induction cooker, method and device for identifying type of cookware and readable storage medium |
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| CN109959032B CN109959032B (en) | 2021-02-26 |
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Cited By (1)
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| CN112460642A (en) * | 2020-11-25 | 2021-03-09 | 袁力 | Detection method for automatically identifying cookware used by kitchen range |
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| CN102821501B (en) * | 2012-08-20 | 2014-10-22 | 九阳股份有限公司 | Induction cooker control circuit suitable for cookers of different materials and power control method |
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