CN110398676A - Moving condition detection method, device and the cooking equipment of cookware on cooking equipment - Google Patents
Moving condition detection method, device and the cooking equipment of cookware on cooking equipment Download PDFInfo
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- CN110398676A CN110398676A CN201810368930.0A CN201810368930A CN110398676A CN 110398676 A CN110398676 A CN 110398676A CN 201810368930 A CN201810368930 A CN 201810368930A CN 110398676 A CN110398676 A CN 110398676A
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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
- A47J27/00—Cooking-vessels
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
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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
- A47J36/00—Parts, details or accessories of cooking-vessels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
- G01R31/2608—Circuits therefor for testing bipolar transistors
- G01R31/261—Circuits therefor for testing bipolar transistors for measuring break-down voltage or punch through voltage therefor
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Induction Heating Cooking Devices (AREA)
- Cookers (AREA)
Abstract
The present invention provides moving condition detection method, device and the cooking equipment of cookware on a kind of cooking equipment, wherein, the described method includes: acquiring the shutdown cycle T off value in the continuous harmonic period of the IGBT module at least two after cooking equipment enters steady-working state；Calculate the variation degree of Toff value in continuous two adjacent harmonic periods；According to the variation degree, the moving condition of cookware on cooking equipment is determined.The present invention passes through variation degree of the IGBT resonant parameter in continuous harmonic period in detection cooking equipment heating process, and the moving condition of cooking equipment is determined according to variation degree, according to different moving conditions, take corresponding different measure, cooking equipment work can be effectively avoided in unstable state, the crash rate of cooking equipment component is reduced, the reliability of cooking equipment complete machine is improved.
Description
Technical field
The present invention relates to living electric apparatus technical fields, more particularly, to a kind of moving condition of cookware on cooking equipment
Detection method, device and cooking equipment.
Background technique
In cooking equipment heating process, heats position, cookware and the culinary art of cookware type, cookware on cooking equipment and set
The relative position of standby drum can all change the output loading of cooking equipment, can all cause greatly to the work system of cooking equipment
It is unstable, it is in particular on output power and IGBT operating voltage and peak point current.
Under other many application scenarios, for example, cookware deformation causes the working condition of cooking equipment to change, by
In control program there are certain retardance, power adjustment is equally lagged, and parameter mutation easily causes IGBT back-pressure and electric current
Rise, causes circuit malfunction.
Summary of the invention
The present invention, which provides, a kind of to be overcome the above problem or at least is partially solved on a kind of cooking equipment of the above problem
Moving condition detection method, device and the cooking equipment of cookware.
According to the first aspect of the invention, a kind of moving condition detection method of cookware on cooking equipment is provided, it is described
Cooking equipment includes IGBT module, comprising:
After cooking equipment enters steady-working state, acquire in the continuous harmonic period of the IGBT module at least two
Turn off cycle T off value；
Calculate the variation degree of IGBT module Toff value in continuous two adjacent harmonic periods；
According to the variation degree, the moving condition of cookware on cooking equipment is determined.
The invention has the benefit that by IGBT resonant parameter in detection cooking equipment heating process in continuous resonance week
Variation degree in phase, and determine according to variation degree the moving condition of the cookware on cooking equipment, it is moved according to the difference of cookware
Dynamic state, can take corresponding different measure, and cooking equipment work can be effectively avoided in unstable state, reduce culinary art and set
The crash rate of standby component, improves the reliability of cooking equipment complete machine.
Based on the above technical solution, the present invention can also improve as follows.
Further, judge that cooking equipment enters steady-working state in the following way:
After opening cooking equipment, Toff value of the IGBT module in continuous first preset times harmonic period is detected；
When maximum value of the IGBT module in the Toff value in continuous first preset times harmonic period and minimum
When difference between value is less than the first preset difference value, determine that cooking equipment enters steady-working state, otherwise, it determines cooking equipment
Steady-working state is not entered.
Further, the variation degree for calculating IGBT module Toff value in continuous two adjacent harmonic periods is specific
Include:
According to Toff value of the IGBT module of detection in continuous harmonic period, the Toffn in latter harmonic period is calculated
The difference of value and the Toffn-1 value in previous harmonic period, wherein n is the positive integer more than or equal to 2；
The difference is compared with the second preset difference value and third preset difference value respectively, is determined and is connected according to comparison result
The variation degree of Toff value in continuous harmonic period.
Further, on the cooking equipment cookware moving condition include quickly top pot state, move slowly at state and
Stable state.
Further, described according to the variation degree, determine that the moving condition of cookware specifically includes on cooking equipment:
When being detected in any harmonic period in the Toffn value in current harmonic period and previous harmonic period
When the difference of Toffn-1 value is greater than third preset difference value, determine that cookware is in quickly top pot state on cooking equipment；
Toffn value and previous resonance in harmonic period in continuous second preset times, in current harmonic period
The difference of Toffn-1 value in period is less than or equal to the second preset difference value and is greater than third preset difference value, it is determined that cooking equipment
Upper cookware is in and moves slowly at state；
When being detected in any harmonic period in the Toffn value in current harmonic period and previous harmonic period
The difference of Toffn-1 value is less than or equal to third preset difference value, alternatively, Toffn value and previous resonance week in current harmonic period
The difference of Toffn-1 value in phase is less than or equal to the second preset difference value and is greater than the continuous harmonic period number of third preset difference value
Less than the second preset times, it is determined that cookware is in stable state on cooking equipment.
Further, described according to the variation degree, it determines on cooking equipment after the moving condition of cookware further include:
According to the different moving conditions of cookware on cooking equipment, take appropriate measures to cooking equipment.
Further, the different moving conditions according to cookware on cooking equipment, take cooking equipment and arrange accordingly
It applies and specifically includes:
When cookware is in quickly top pot state or moves slowly at state on cooking equipment, control cooking equipment enters guarantor
Shield state；
When cookware is in stable state on cooking equipment, control cooking equipment maintains current state to carry out power output.
Further, described when cookware is in quickly top pot state or moves slowly at state on cooking equipment, control
Cooking equipment enters guard mode and specifically includes:
It controls cooking equipment to stop after heating preset time, the heated condition for restoring cooking equipment carries out power output；Or
Person,
Cooking equipment switch is closed, until cooking equipment is switched by retriggered；Alternatively,
The heating power for reducing cooking equipment is restored cooking equipment and is added with original after cooking equipment is in stable state
Thermal power carries out power output.
According to the second aspect of the invention, a kind of movable state testing device of cookware on cooking equipment is provided, it is described
Cooking equipment includes IGBT module, and described device includes acquisition module and controller；
The acquisition module, for after cooking equipment enters steady-working state, acquiring the IGBT module at least two
Shutdown cycle T off value in a continuous harmonic period；
The controller, for calculating the variation degree of IGBT module Toff value in continuous harmonic period；It is also used to root
According to the variation degree, the moving condition of cookware on cooking equipment is determined.
Further, on the cooking equipment cookware moving condition include quickly top pot state, move slowly at state and
Stable state, the controller are specifically used for:
When cookware is in quickly top pot state or moves slowly at state on cooking equipment, control cooking equipment enters guarantor
Shield state；
When cookware is in stable state on cooking equipment, control cooking equipment maintains current state to carry out power output.
According to the third aspect of the present invention, a kind of cooking equipment is provided, the mobile shape including cookware on cooking equipment
State detection device.
According to the fourth aspect of the present invention, a kind of cooking equipment, including processor, memory and bus are provided；
The processor and memory complete mutual communication by the bus；
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
Enable the moving condition detection method for being able to carry out cookware on cooking equipment.
According to the fifth aspect of the present invention, a kind of non-transient computer readable storage medium is provided, it is described non-transient
Computer-readable recording medium storage computer instruction, the computer instruction make the computer execute cookware on cooking equipment
Moving condition detection method.
Detailed description of the invention
Fig. 1 is the moving condition detection method flow chart of cookware on the cooking equipment of one embodiment of the invention；
Fig. 2 is the overall flow of the moving condition detection method of cookware on the cooking equipment of another embodiment of the present invention
Figure；
Fig. 3 is the movable state testing device schematic diagram of cookware on the cooking equipment of another embodiment of the invention；
Fig. 4 is the structural schematic diagram of the cooking equipment of further embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Referring to Fig. 1, the moving condition detection method of cookware on the cooking equipment of one embodiment of the invention is provided, is applied
In cooking equipment heating system, can the moving condition at any time to the cookware on the cooking equipment in heating process judge
It detects, includes IGBT module in cooking equipment.This method comprises: after cooking equipment enters steady-working state, described in acquisition
Shutdown cycle T off value in the continuous harmonic period of IGBT module at least two；IGBT module is calculated in continuous two adjacent resonance
The variation degree of Toff value in period；According to the variation degree, the moving condition of cookware on cooking equipment is determined.
Specifically, when just opening cooking equipment, culinary art is set after opening cooking equipment and adjusting cooking equipment power output
Standby working condition is usually unstable, at this point on detection cooking equipment the moving condition of cookware the result is that influential,
Therefore, it is necessary to just carry out the detection of the moving condition of cookware after cooking equipment enters steady-working state.
During detection, an important detection parameters are IGBT (the Insulated Gate of cooking equipment
Bipolar Transistor, insulated gate bipolar transistor) period is turned off in harmonic period, IGBT is in resonant operational process
In, entire harmonic period includes turn-on cycle and shutdown period (also referred to as off period), for convenience of description, by the shutdown of IGBT
Period indicia is Toff value.Wherein, the distance between parameter Toff value and IGBT resonant parameter, cookware and cooking equipment drum
(disk spacing) and cookware type are related.After IGBT resonant parameter is fixed, Toff value is just with disk spacing and cookware type
Related, the two factors can directly react switching and moving process of the cookware on cooking equipment.Specifically, cookware exists
Ceramic wafer planar movement, cookware are remoter from ceramic wafer centre distance, and Toff value value is bigger, and disk spacing is bigger, and Toff value value is bigger；
Different cookware types, Toff value variation is big, for example, 430 materials cookware and 304 materials cookware, the two generate
Toff value variation is just very big.
In the present embodiment, after cooking equipment enters steady-working state, acquisition IGBT module at least two is continuous humorous
Shutdown cycle T off value in the vibration period.According to Toff value of the IGBT module of acquisition in continuous harmonic period, calculate continuous
The variation degree of Toff value in harmonic period.According to the variation degree of the Toff value in the continuous harmonic period calculated, come
Judge the moving condition of cookware on cooking equipment, different measures can be taken to provide support for cooking equipment to be subsequent.
In another embodiment of the present invention, judge that cooking equipment enters steady-working state in the following way: opening
After opening cooking equipment, Toff value of the IGBT module in continuous first preset times harmonic period is detected；When IGBT module exists
The difference between the maxima and minima in Toff value in continuous first preset times harmonic period is default less than first
When difference, determine that cooking equipment enters steady-working state, otherwise, it determines cooking equipment does not enter steady-working state.
Specifically, after opening cooking equipment, judge whether cooking equipment enters the method for steady-working state and be, when opening
After opening cooking equipment, an IGBT for returning to cooking equipment at regular intervals turns off cycle T off value, for example, every 50ms is returned
One time IGBT turns off cycle T off value, has thus collected Toff value of the IGBT module in continuous harmonic period.Pass through inspection
The Toff value in continuous 4 harmonic periods is surveyed, Toff1-Toff4 is denoted as, takes maximum value and minimum value in Toff1-Toff4,
And the difference between maximum value and minimum value is calculated, the difference being calculated is compared with the first preset difference value.Work as calculating
When obtained difference is less than the first preset difference value, shows that continuous Toff1 is smaller to the difference between Toff4, substantially may be used
To determine that cooking equipment system is now in steady-working state, otherwise, it can determine that cooking equipment system is in unstable work
Make state, then continues to judge whether cooking equipment system enters stable working condition.
In one embodiment of the invention, calculating IGBT module Toff value in continuous two adjacent harmonic periods
Variation degree specifically include: according to the Toff value in the continuous harmonic period of detection, calculate the Toffn in latter harmonic period
The difference of value and the Toffn-1 value in previous harmonic period, wherein n is the positive integer more than or equal to 2；The difference is distinguished
It is compared with the second preset difference value and third preset difference value, the change of Toff value in continuous harmonic period is determined according to comparison result
Change degree.
After judging that cooking equipment system enters stable working condition, so that it may start the shifting of cookware on cooking equipment
The deterministic process of dynamic state.Specifically, in arbitrary harmonic period, in current harmonic period in the IGBT harmonic period of acquisition
The shutdown period is denoted as Toffn value, and the shutdown period is denoted as Toffn-1 value in the IGBT harmonic period acquired in previous harmonic period.
The difference of the Toffn value in the latter harmonic period of calculating and the Toffn-1 value in previous harmonic period can be passed through | Toffn-
Toffn-1 |, and the difference is compared with the second preset difference value Tref1 and third preset difference value Tref2 respectively, according to than
Relatively result determines the variation degree of Toff value in continuous harmonic period.
In another embodiment of the present invention, described according to the variation degree, determine the shifting of cookware on cooking equipment
Dynamic state specifically includes: when detecting the Toffn value in current harmonic period and previous harmonic period in any harmonic period
When the difference of interior Toffn-1 value is greater than third preset difference value, determine that cookware is in quickly top pot state on cooking equipment；When
In the harmonic period of continuous second preset times, in the Toffn value and previous harmonic period in current harmonic period
The difference of Toffn-1 value is less than or equal to the second preset difference value and is greater than third preset difference value, it is determined that on cooking equipment at cookware
In moving slowly at state；When detecting the Toffn value in current harmonic period and previous harmonic period in any harmonic period
The difference of interior Toffn-1 value is less than or equal to third preset difference value, alternatively, the Toffn value in current harmonic period with it is previous humorous
The difference for the Toffn-1 value shaken in the period is less than or equal to the second preset difference value and is greater than the continuous harmonic period of third preset difference value
Number is less than the second preset times, it is determined that cookware is in stable state on cooking equipment.
Wherein, in the present embodiment, the moving condition of cookware includes quick top pot state, moves slowly at shape on cooking equipment
State and stable state.It can be found in Fig. 2, specifically judge that the method for the moving condition of cookware on cooking equipment is, when in any resonance
In period, the difference between the Toffn-1 value in the Toffn value and previous harmonic period in current harmonic period detected is big
In the second preset difference value, i.e., | Toffn-Toffn-1 | > Tref1 determines that cookware is in quickly top pot shape on cooking equipment at this time
State can take corresponding safeguard measure.In any harmonic period, detect Toffn value in current harmonic period with
The difference between Toffn-1 value in previous harmonic period is less than or equal to the second preset difference value and is greater than third preset difference value, i.e.,
Tref2 < | Toffn value-Toffn-1 value |≤Tref1 then judges whether in the harmonic period of continuous preset times hereafter,
Difference between Toffn value and Toffn-1 value is all satisfied this above-mentioned condition, for example, in continuous 4 harmonic periods, it is full
Sufficient Tref2 < | Toffn-Toffn-1 | this condition of≤Tref1, it is determined that the moving condition of cookware is at a slow speed on cooking equipment
Moving condition then takes corresponding safeguard measure.
In addition to quick top pot state above-mentioned and after moving slowly at state, the cookware on cooking equipment is in stabilization
State.Specifically, in any harmonic period, in the Toffn value and previous harmonic period in current harmonic period
The difference of Toffn-1 value is less than or equal to third preset difference value, i.e., | Toffn-Toffn-1 |≤Tref2 can determine culinary art at this time
Cookware is in stable state in equipment.Alternatively, as the Toffn value in current harmonic period and the Toffn- in previous harmonic period
The difference of 1 value is less than or equal to the second preset difference value and presets greater than the continuous harmonic period number of third preset difference value less than second
Number also determines that cookware is in stable state on cooking equipment, for example, meeting Tref2 < | Toffn-Toffn-1 |≤Tref1
The number of the continuous harmonic period of this condition is not continuous 4 less than the difference between 4, Toffn value and Toffn-1 value
Tref2 < is all satisfied in a harmonic period | Toffn-Toffn-1 | this condition of≤Tref1 can then determine on cooking equipment
Cookware is in stable state.
In one embodiment of the invention, described according to the variation degree, determine the movement of cookware on cooking equipment
After state further include: according to the different moving conditions of cookware on cooking equipment, take appropriate measures to cooking equipment.
Judgment method through the foregoing embodiment is determined on cooking equipment to cook in order to prevent after the moving condition of cookware
There are abnormal conditions and has an impact to the work of cooking equipment in equipment of preparing food, according to the different moving conditions of cookware on cooking equipment,
It takes appropriate measures to cooking equipment.
In one embodiment of the invention, the different moving conditions according to cookware on cooking equipment, set culinary art
Standby take appropriate measures specifically includes: when cookware is in quickly top pot state or moves slowly at state on cooking equipment,
Control cooking equipment enters guard mode；When cookware is in stable state on cooking equipment, control cooking equipment remains current
State carries out power output.
On judging cooking equipment after the moving condition of cookware, according to the moving condition of cookware on cooking equipment, take
Corresponding measure determines that cooking equipment is constantly in steady-working state.When specific implementation, when cookware is on cooking equipment
Quickly top pot state or when moving slowly at state, control cooking equipment enters guard mode.And work as on cooking equipment at cookware
When stable state, then controls cooking equipment and current state is maintained to carry out power output, work normally, i.e., when pot on cooking equipment
Tool is considered in cooking equipment heating process that appearance is abnormal in quickly top pot state or when moving slowly at state, therefore,
It needs to carry out safeguard measure, and cooking equipment is in stable state, that is, normal condition, does not need to take safeguard measure.
In another embodiment of the present invention, described when cooking equipment is in quickly top pot state or moves slowly at shape
When state, control cooking equipment enters guard mode and specifically includes: after control cooking equipment stops heating preset time, restoring culinary art
The heated condition of equipment carries out power output；Alternatively, cooking equipment switch is closed, until cooking equipment is switched by retriggered；
Alternatively, reducing the heating power of cooking equipment, after cooking equipment is in stable state, restores cooking equipment with original and heat function
Rate carries out power output.
When cookware is in quickly top pot state or when moving slowly at state on cooking equipment, the specific safeguard measure taken
For control cooking equipment stops heating, after being spaced 5s, restarts to heat, and carries out power output；Alternatively, directly closing culinary art
Facility switching, retriggered cooking equipment switchs after a period of time；Alternatively, reducing the heating power of cooking equipment, i.e., to culinary art
Equipment carries out drop function processing, is heated with lower-wattage, the moving condition of cookware, to be cooked to set on cycle detection cooking equipment
After standby upper cookware is in steady-working state, restores the former heating power of cooking equipment and carry out power output.
It should be noted that the above method in the present invention can be applied to several scenes, for example, because plastic part deforms
Unstable and cookware deformation in cooking equipment heating process caused by causing cooking equipment disk spacing to change greatly in turn is led
Cause working condition changes and cooking equipment boilers from drying burning leads to the changed application scenarios of working condition.
Referring to Fig. 3, the movable state testing device of cookware on the cooking equipment of one embodiment of the invention is provided, is cooked
Equipment includes IGBT module, and detection device includes acquisition module 1 and controller 2.Wherein, acquisition module 1, in cooking equipment
Into after steady-working state, acquires in continuous harmonic period and turn off the period in the harmonic period of the IGBT module of cooking equipment
Toff value；The controller 2, for calculating the variation degree of IGBT module Toff value in continuous harmonic period；And it also uses
According to the variation degree, the moving condition of cookware on cooking equipment is determined.
Wherein, acquisition module 1 is also used to after cooking equipment is turned on, and acquisition IGBT module is at continuous first default time
Toff value in number harmonic period；Correspondingly, controller 2 are also used to when in the continuous first preset times harmonic period
Toff value in maxima and minima between difference less than the first preset difference value when, determine that cooking equipment enters stable work
Make state, otherwise, it determines cooking equipment does not enter steady-working state.
Controller 2 calculates latter also particularly useful for the Toff value in the continuous harmonic period acquired according to acquisition module 1
The difference of the Toffn-1 value in Toffn value and previous harmonic period in harmonic period；And for by the difference respectively with
Second preset difference value and third preset difference value are compared, and the variation of Toff value in continuous harmonic period is determined according to comparison result
Degree.
Controller 2 is specifically used in any harmonic period, detects the Toffn value in current harmonic period with before
When the difference of Toffn-1 value in one harmonic period is greater than third preset difference value, determine that cookware is in quickly top on cooking equipment
Pot state；Be also used to when in the harmonic period of continuous second preset times, the Toffn value in current harmonic period with it is previous
The difference of Toffn-1 value in harmonic period is less than or equal to the second preset difference value and is greater than third preset difference value, it is determined that culinary art
Cookware is in and moves slowly at state in equipment；And it is also used to as the Toffn in any harmonic period, in current harmonic period
The difference of value and the Toffn-1 value in previous harmonic period is less than or equal to third preset difference value, alternatively, when in latter harmonic period
Toffn value and the difference of the Toffn-1 value in previous harmonic period be less than or equal to the second preset difference value and default greater than third
The continuous harmonic period number of difference is less than the second preset times, it is determined that cookware is in stable state on cooking equipment.
In another embodiment of the present invention, a kind of cooking equipment is additionally provided, which includes above-mentioned implementation
The automatic detection function that the motion detection device of cookware on the cooking equipment of example, i.e. this kind of cooking equipment have cookware moving condition
Energy.
Referring to fig. 4, in one embodiment of the invention, a kind of cooking equipment, including processor, memory are additionally provided
And bus；The processor and memory complete mutual communication by the bus；The memory is stored with can be by institute
The program instruction of processor execution is stated, the processor calls described program instruction to be able to carry out following method: in cooking equipment
Into after steady-working state, the shutdown cycle T off value in the continuous harmonic period of the IGBT module at least two is acquired；Meter
Calculate the variation degree of Toff value in continuous two adjacent harmonic periods；According to the variation degree, cookware on cooking equipment is determined
Moving condition.
In yet another embodiment of the present invention, a kind of non-transient computer readable storage medium is provided, feature exists
In the non-transient computer readable storage medium stores computer instruction, and the computer instruction executes the computer
Following method: it after cooking equipment enters steady-working state, acquires in the continuous harmonic period of the IGBT module at least two
Shutdown cycle T off value；Calculate the variation degree of Toff value in continuous two adjacent harmonic periods；According to the variation degree,
Determine the moving condition of cookware on cooking equipment.
The moving condition detection method of cookware, device and culinary art are set on a kind of cooking equipment of moving condition provided by the invention
It is standby, by variation degree of the IGBT resonant parameter in continuous harmonic period in detection cooking equipment heating process, and according to change
Change degree determines the moving condition of the cookware on cooking equipment, according to the different moving conditions of cookware, corresponding difference is taken to arrange
It applies, can be applied to several scenes, cooking equipment work can be effectively avoided in unstable state, reduce cooking equipment component
Crash rate, improve cooking equipment complete machine reliability.
Finally, the present processes are only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (13)
1. the moving condition detection method of cookware, the cooking equipment include IGBT module on a kind of cooking equipment, feature exists
In, which comprises
After cooking equipment enters steady-working state, the shutdown in the continuous harmonic period of the IGBT module at least two is acquired
Cycle T off value；
Calculate the variation degree of Toff value in continuous two adjacent harmonic periods；
According to the variation degree, the moving condition of cookware on cooking equipment is determined.
2. the moving condition detection method of cookware on cooking equipment as described in claim 1, which is characterized in that pass through such as lower section
Formula judges that cooking equipment enters steady-working state:
After opening cooking equipment, the Toff value in the continuous first preset times harmonic period of IGBT module is detected；
When the difference between the maxima and minima in the Toff value in the continuous first preset times harmonic period is small
When the first preset difference value, determine that cooking equipment enters steady-working state, otherwise, it determines cooking equipment does not enter steady operation
State.
3. the moving condition detection method of cookware on cooking equipment as claimed in claim 1 or 2, which is characterized in that the meter
The variation degree for calculating Toff value in continuous two adjacent harmonic periods specifically includes:
According to the Toff value in the continuous harmonic period of the IGBT module of detection, the Toffn value in latter harmonic period is calculated with before
The difference of Toffn-1 value in one harmonic period, wherein n is the positive integer more than or equal to 2；
The difference is compared with the second preset difference value and third preset difference value respectively, IGBT mould is determined according to comparison result
The variation degree of Toff value in the continuous harmonic period of block.
4. the moving condition detection method of cookware on cooking equipment as claimed in claim 3, which is characterized in that the culinary art is set
The moving condition of standby upper cookware includes quick top pot state, moves slowly at state and stable state.
5. the moving condition detection method of cookware on cooking equipment as claimed in claim 4, which is characterized in that described according to institute
Variation degree is stated, determines that the moving condition of cookware specifically includes on cooking equipment:
When detecting the Toff n-1 in the Toffn value in current harmonic period and previous harmonic period in any harmonic period
When the difference of value is greater than the second preset difference value, determine that the cookware on cooking equipment is in quickly top pot state；
Toffn value and previous harmonic period in harmonic period in continuous second preset times, in current harmonic period
The difference of interior Toffn-1 value is less than or equal to the second preset difference value and is greater than third preset difference value, it is determined that on cooking equipment
Cookware is in and moves slowly at state；
When detecting the Toff n-1 in the Toffn value in current harmonic period and previous harmonic period in any harmonic period
The difference of value is less than or equal to third preset difference value, alternatively, in the Toffn value and previous harmonic period in current harmonic period
The difference of Toffn-1 value is less than or equal to the second preset difference value and is greater than the continuous harmonic period number of third preset difference value less than the
Two preset times, it is determined that the cookware on cooking equipment is in stable state.
6. the moving condition detection method of cookware on cooking equipment as claimed in claim 4, which is characterized in that described according to institute
Variation degree is stated, is determined on cooking equipment after the moving condition of cookware further include:
According to the moving condition of cookware on cooking equipment, corresponding operation is taken to cooking equipment.
7. the moving condition detection method of cookware on cooking equipment as claimed in claim 6, which is characterized in that the basis is cooked
The moving condition of cookware in equipment of preparing food, takes corresponding operation to cooking equipment, specifically includes:
When cookware is in quickly top pot state or moves slowly at state on cooking equipment, control cooking equipment enters protection shape
State；
When cookware is in stable state on cooking equipment, control cooking equipment maintains current state to carry out power output.
8. the moving condition detection method of cookware on cooking equipment as claimed in claim 7, which is characterized in that described when culinary art
When cookware is in quickly top pot state or moves slowly at state in equipment, control cooking equipment enters guard mode and specifically wraps
It includes:
It controls cooking equipment to stop after heating preset time, the heated condition for restoring cooking equipment carries out power output；Alternatively,
Cooking equipment switch is closed, until cooking equipment is switched by retriggered；Alternatively,
The heating power for reducing cooking equipment restores cooking equipment with original and heats function after cooking equipment is in stable state
Rate carries out power output.
9. the movable state testing device of cookware on a kind of cooking equipment, the cooking equipment include IGBT module, feature exists
In, including acquisition module and controller；
The acquisition module, for acquiring at least two continuous harmonic periods after cooking equipment enters steady-working state
Cycle T off value is turned off in the harmonic period of the IGBT module of cooking equipment；
The controller, for calculating the variation degree of IGBT module Toff value in continuous harmonic period；It is also used to according to institute
Variation degree is stated, determines the moving condition of cookware on cooking equipment.
10. the movable state testing device of cookware on cooking equipment as claimed in claim 9, which is characterized in that the culinary art
The moving condition of cookware includes quick top pot state, moves slowly at state and stable state in equipment, and the control implement body is used
In:
When cookware is in quickly top pot state or moves slowly at state on cooking equipment, control cooking equipment enters protection shape
State；
When cookware is in stable state on cooking equipment, control cooking equipment maintains current state to carry out power output.
11. a kind of cooking equipment, which is characterized in that the cooking equipment including IGBT module and as described in claim 9 or 10
Movable state testing device.
12. a kind of cooking equipment, which is characterized in that including processor, memory and bus；
The processor and memory complete mutual communication by the bus；
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to instruct energy
Enough execute the method according to claim 1.
13. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction makes the computer execute method a method as claimed in any one of claims 1-8.
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