CN107559903A - Judge unloaded method, system, computer equipment, storage medium and micro-wave oven - Google Patents
Judge unloaded method, system, computer equipment, storage medium and micro-wave oven Download PDFInfo
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- CN107559903A CN107559903A CN201710859270.1A CN201710859270A CN107559903A CN 107559903 A CN107559903 A CN 107559903A CN 201710859270 A CN201710859270 A CN 201710859270A CN 107559903 A CN107559903 A CN 107559903A
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Abstract
The present invention proposes a kind of method, system, computer equipment, storage medium and micro-wave oven for judging zero load, wherein, judge unloaded method, including：Microwave emission is carried out according to parameter preset control micro-wave oven, records incident power and reflection power；According to incident power and reflection power, load characteristic value is determined；By load characteristic value compared with default characteristic value, determine whether micro-wave oven is unloaded according to comparative result.It by technical scheme, can realize on the premise of additionally sensor is not increased, the load characteristic value determined by incident power and reflection power, directly judge whether micro-wave oven is unloaded.
Description
Technical field
The present invention relates to cooking equipment field, unloaded in particular to a kind of method for judging zero load, a kind of judgement
System, a kind of computer equipment, a kind of computer-readable recording medium and a kind of micro-wave oven.
Background technology
At present, semiconductor microwave oven has the characteristics of power, frequency and phase variable, in the course of the work can be by more
Change setting and change the distribution of microwave, heat foods effect is improved with this.Existing most semiconductor microwave oven is logical
Temperature, humidity or the weight change crossed in sensor detection microwave oven cavity to judge indirectly during micro-wave oven operating in cavity whether
There is load, control structure is not only complicated, and signal is easily interfered.How directly to determine whether without using sensor
Zero load, which turns into, it is expected solve the problems, such as.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art or correlation technique.
Therefore, it is an object of the present invention to propose a kind of method for judging zero load.
Second object of the present invention is to propose a kind of system for judging zero load.
Third object of the present invention is to propose a kind of computer equipment.
Fourth object of the present invention is to propose a kind of computer-readable recording medium.
The 5th purpose of the present invention is to propose a kind of micro-wave oven.
In view of this, the technical scheme of first aspect present invention proposes a kind of method for judging zero load, including：According to pre-
Setting parameter control micro-wave oven carries out Microwave emission, records incident power and reflection power；According to incident power and reflection power, really
Fixed load characteristic value；By load characteristic value compared with default characteristic value, determine whether micro-wave oven is empty according to comparative result
Carry.
Scanned first by parameter preset, to determine unloaded return loss value RIt is unloaded, then swept according still further to identical parameter preset
Other different loads are retouched, to calculate load characteristic value, it can be seen that default characteristic value and micro-wave oven during micro-wave oven zero load
Characteristic value difference during load is obvious and reproducible, it is possible to for judging whether system is unloaded.
In the technical scheme, in micro-wave oven operation process, micro-wave oven impinging microwave is controlled according to parameter preset；According to
The incident power and reflection power of microwave source, determine load characteristic value, by the use of load characteristic value as judging whether micro-wave oven is empty
The judge index of load, can be accurate because load characteristic value difference when characteristic value of the micro-wave oven in zero load and load is obvious
Judge whether micro-wave oven is in Light Condition；By load characteristic value compared with default characteristic value, according to comparative result come really
Whether unloaded determine micro-wave oven, realize on the premise of additionally sensor is not increased, judged according to the load characteristic value of determination
Whether micro-wave oven is in Light Condition when operating.
Herein it should be understood that parameter when parameter preset refers to running of microwave oven, because joining corresponding to different operations
Number, has different characteristic values, so when being compared, it should be the characteristic value and identical fortune that will be obtained under identical operational factor
Default characteristic value under row parameter is compared just more accurate and significant.Parameter preset can include but is not limited to incidence
Frequency, phase, amplitude and the microwave source number of microwave.
In addition, it should also be noted that, default characteristic value can be by leading in micro-wave oven zero load and during different loads
Cross the obtained data of lot of experimental data or directly set according to historical empirical data.
In the above-mentioned technical solutions, load characteristic value can be calculated according to following steps：In micro-wave oven Light Condition
Under according to default step-length, be scanned successively with scan frequency m to scan frequency n, and record corresponds to each scanning frequency successively
Unloaded reflection power P under rateUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
Under micro-wave oven load condition, according to default step-length, it is scanned successively with scan frequency m to scan frequency n, and
The load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerWith load incident power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine load characteristic value
In the technical scheme, in micro-wave oven zero load, microwave incidence, record are carried out according to parameter preset control micro-wave oven
Unloaded incident power and unloaded reflection power, and unloaded return loss is calculated according to unloaded incident power and unloaded reflection power and damaged
Consumption value；When micro-wave oven loads, microwave incidence, record load incident power and load are carried out according to parameter preset control micro-wave oven
Reflection power, and load return loss loss value is obtained according to load incident power and load reflection power calculation, damaged by unloaded return loss
Load characteristic value is calculated in consumption value and load return loss loss value.Default characteristic value and load characteristic value are in identical parameters tripping in
Penetrate microwave measurement, therefore, can by load characteristic value directly with it is unloaded when the default characteristic value that determines compare, judge microwave
Whether stove is in Light Condition.Here, it should be appreciated that if parameter preset is different, obtained default characteristic value may be different.
In the above-mentioned technical solutions, default characteristic value can be arranged to 0；Load characteristic value and default characteristic value are carried out
Compare；If difference is less than first threshold, it is determined that for zero load.
Rule of thumb data, first threshold can be arranged to 1, if difference is less than 1, zero load can be defined as.
In the above-mentioned technical solutions, load characteristic value can be calculated according to following steps：In micro-wave oven Light Condition
Under according to default step-length, be scanned successively with scan frequency m to scan frequency n, and record corresponds to each scanning frequency successively
Unloaded reflection power P under rateUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
It is determined that default characteristic value
Under micro-wave oven load condition, according to default step-length, it is scanned successively with scan frequency m to scan frequency n, and
The load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerWith load incident power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine load characteristic value
In the technical scheme, by above-mentioned formula come the unloaded characteristic value and load characteristic value that determine.
In the above-mentioned technical solutions, by load characteristic value compared with default characteristic value, if difference is less than the second threshold
Value, it is determined that for zero load.
In the technical scheme, Second Threshold can be 1000.
In any of the above-described technical scheme, it can also include：If it is determined that micro-wave oven is in Light Condition, load characteristic is determined
Number range where being worth；According to result is determined, control micro-wave oven reduces operation power or stops heating.
In the technical scheme, however, it is determined that micro-wave oven is in Light Condition, can continue determine load characteristic value where
Number range, exist in micro-wave oven variety classes, different weight load when corresponding load characteristic value be different, by true
Number range where fixed load characteristic value, can not be that selection directly stops adding when it is determined that micro-wave oven is in Light Condition
The method of heat, but select to control micro-wave oven to reduce operation power according to the state of the load further determined that.That is,
Light Condition now may be only light-load state, and micro-wave oven can be controlled to make and correspondingly adjusted, reduce micro-wave oven
Run when light load power it is excessive cause system to burn out or strike sparks possibility, improve running of microwave oven security.
In the above-mentioned technical solutions, according to result is determined, control micro-wave oven, which reduces operation power or stops heating, to be included：If
Load characteristic value is more than the 3rd threshold value, then controls micro-wave oven to reduce operation power, and otherwise, control micro-wave oven stops heating.
In the technical scheme, pass through the setting of the 3rd threshold value, it is possible to achieve determine whether to be in during micro-wave oven operating
Light load or Light Condition, and can correspondingly be adjusted according to judged result to control micro-wave oven to make.
It should be noted that the 3rd threshold value can be by passing through many experiments in micro-wave oven zero load and during different loads
Data that data obtain or directly set according to historical empirical data.
In any of the above-described technical scheme, it is preferable that parameter preset includes one below or its combination：Frequency, phase, width
Value, the number of microwave source.
In the technical scheme, micro-wave oven is to send microwave by microwave source, can by changing frequency, phase, amplitude
To change the working condition of micro-wave oven, the number of micro-wave oven microwave source in running order when operating can also change electromagnetic wave
That is the distribution of microwave, therefore, it is necessary to determine load characteristic value and default characteristic value under identical parameter, improve accuracy of judgement
Rate, reduce error.
The technical scheme of second aspect of the present invention proposes a kind of system for judging zero load, including：Power detecting unit, use
In in the case where carrying out Microwave emission according to parameter preset control micro-wave oven, incident power and reflection power are recorded；Computing list
Member, for according to incident power and reflection power, determining load characteristic value；And judging unit, for by load characteristic value with
Default characteristic value is compared, and determines whether micro-wave oven is unloaded according to comparative result.
In the technical scheme, in micro-wave oven operation process, by power detecting unit, controlled according to parameter preset micro-
Ripple stove impinging microwave；Again by arithmetic element, according to the incident power and reflection power of microwave source, load characteristic value is determined, profit
By the use of load characteristic value as judging the whether unloaded judge index of micro-wave oven, when characteristic value of the micro-wave oven in zero load and load
The difference of load characteristic value is obvious, can accurate judgement micro-wave oven whether be in Light Condition；Afterwards by judging unit, will load
Characteristic value determines whether micro-wave oven is unloaded according to comparative result, realizes and do not increasing additionally compared with default characteristic value
On the premise of adding sensor, whether Light Condition is in when judging micro-wave oven operating according to the load characteristic value of determination.
Herein it should be understood that parameter when parameter preset refers to running of microwave oven, because joining corresponding to different operations
Number, has different characteristic values, so when being compared, it should be the characteristic value and identical fortune that will be obtained under identical operational factor
Default characteristic value under row parameter is compared just more accurate and significant.Parameter preset can include but is not limited to incidence
Frequency, phase, amplitude and the microwave source number of microwave.
In addition, it should also be noted that, default characteristic value can be by leading in micro-wave oven zero load and during different loads
Cross the obtained data of lot of experimental data or directly set according to historical empirical data.
In the above-mentioned technical solutions, load characteristic value is calculated according to following steps in arithmetic element：It is unloaded in micro-wave oven
According to default step-length under state, it is scanned successively with scan frequency m to scan frequency n, and records to correspond to successively and each sweep
Retouch the unloaded reflection power P under frequencyUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
Under micro-wave oven load condition, according to default step-length, it is scanned successively with scan frequency m to scan frequency n, and
The load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerWith load incident power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine load characteristic value
In the technical scheme, in micro-wave oven zero load, according to parameter preset control micro-wave oven transmitting microwave, pass through power
Detection unit, record unloaded incident power and unloaded reflection power；When micro-wave oven loads, micro-wave oven is controlled according to parameter preset
Launch microwave, by power detecting unit, record load incident power and load reflection power, and by arithmetic element, according to
Load characteristic value is calculated in incident power and reflection power, and presetting characteristic value with load characteristic value is launched under identical parameters
Microwave measurement, therefore, can by load characteristic value directly with it is unloaded when the default characteristic value that determines compare, judge micro-wave oven
Whether Light Condition is in.Here, it should be appreciated that if parameter preset is different, obtained default characteristic value may be different.
In the above-mentioned technical solutions, judging unit is used for：Default characteristic value is arranged to 0；By load characteristic value with presetting
Characteristic value is compared；If difference is less than first threshold, it is determined that for zero load.
In the technical scheme, rule of thumb data, can be arranged to 1 by first threshold, can if difference is less than 1
To be defined as zero load.
In the above-mentioned technical solutions, arithmetic element follows the steps below calculating：
According to default step-length under micro-wave oven Light Condition, it is scanned successively with scan frequency m to scan frequency n, and
The unloaded reflection power P that record corresponds under each scan frequency successivelyUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
It is determined that default characteristic value
Under micro-wave oven load condition, according to default step-length, it is scanned successively with scan frequency m to scan frequency n, and
The load reflection power P that record corresponds under each scan frequency successivelyLoad reflection work(Rate and load incident power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine load characteristic value
In the technical scheme, by above-mentioned formula come the unloaded characteristic value and load characteristic value that determine.
In the above-mentioned technical solutions, judging unit is used for：By load characteristic value compared with default characteristic value；It is if poor
Value is less than Second Threshold, it is determined that for zero load.
In the technical scheme, Second Threshold can be 1000.
In the above-mentioned technical solutions, can also include：Scope determining unit, for it is determined that micro-wave oven is in Light Condition
When, determine the number range where load characteristic value；Control unit, for according to result is determined, control micro-wave oven to reduce operation
Power stops heating.
In the technical scheme, however, it is determined that micro-wave oven is in Light Condition, and scope determining unit is used to continue to determine load
Number range where characteristic value, exist in micro-wave oven variety classes, different weight load when corresponding load characteristic value be
It is different, by determining the number range where load characteristic value, can be controlled single when it is determined that micro-wave oven is in Light Condition
Member is not the method for controlling micro-wave oven selection directly to stop heating, but selection is controlled according to the state of the load further determined that
Micro-wave oven processed reduces operation power.That is, Light Condition now may be only light-load state, control unit can be with
Control micro-wave oven is made and correspondingly adjusted, reduce micro-wave oven run when light load power it is excessive cause system to burn out or beat
The possibility of fire, improves running of microwave oven security.
In the above-mentioned technical solutions, control unit is used for when load characteristic value is more than three threshold values, control micro-wave oven drop
Low operation power, otherwise, control micro-wave oven stop heating.
In the technical scheme, pass through the setting of the 3rd threshold value, it is possible to achieve determine whether to be in during micro-wave oven operating
Light load or Light Condition, control unit can correspondingly adjust according to judged result to control micro-wave oven to make.
It should be noted that the 3rd threshold value can be by passing through many experiments in micro-wave oven zero load and during different loads
Data that data obtain or directly set according to historical empirical data.
In any of the above-described technical scheme, parameter preset includes one below or its combination：Frequency, phase, amplitude, microwave
The number in source.
In the technical scheme, micro-wave oven is to send microwave by microwave source, can by changing frequency, phase, amplitude
To change the working condition of micro-wave oven, the number of micro-wave oven microwave source in running order when operating can also change electromagnetic wave
That is the distribution of microwave, therefore, it is necessary to determine load characteristic value and default characteristic value under identical parameter, improve accuracy of judgement
Rate, reduce error.
The technical scheme of third aspect present invention proposes a kind of computer equipment, including memory, processor and storage
On a memory and the computer program that can run on a processor, any of the above-described is performed during computing device computer program
The unloaded method of judgement.
In the technical scheme, the computer program for performing the method for the judgement zero load of any of the above-described is stored in memory
On, during computing device computer program, it may be implemented on the premise of additionally not increasing sensor, system directly records microwave
Incident power and reflection power, whether Light Condition is in when judging micro-wave oven operating according to the load characteristic value of determination.
The technical scheme of fourth aspect present invention proposes a kind of computer-readable recording medium, is stored thereon with computer
Program, the judgement of any of the above-described unloaded method is realized when computer program is executed by processor.
In the technical scheme, processor realizes that the method as described above for judging zero load is needed by computer program,
This computer program needs to be stored in computer-readable medium.This computer-readable medium ensure that computer journey
Sequence can be executed by processor, it is achieved thereby that on the premise of additionally sensor is not increased, system directly records entering for microwave
Power and reflection power are penetrated, whether Light Condition is in when judging micro-wave oven operating according to the load characteristic value of determination.
The technical scheme of fifth aspect present invention proposes a kind of micro-wave oven, including：The judgement zero load of any of the above-described
System.
In the technical scheme, including any one judges the micro-wave oven of unloaded system, may be implemented in not additionally increase biography
On the premise of sensor, system directly records the incident power and reflection power of microwave, is judged according to the load characteristic value of determination
Whether micro-wave oven is in Light Condition when operating.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 shows list figure of the micro-wave oven in different loads state lower eigenvalue；
Fig. 2 shows the schematic flow sheet according to an embodiment of the invention for judging unloaded method；
Fig. 3 shows the schematic flow sheet of the method for judgement zero load according to another embodiment of the invention；
Fig. 4 shows the structural representation according to an embodiment of the invention for judging unloaded system；
Fig. 5 shows the structural representation of the system of judgement zero load according to another embodiment of the invention；
Fig. 6 shows the structural representation of computer equipment according to an embodiment of the invention；
Fig. 7 shows the structural representation of micro-wave oven according to an embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 shows list figure of the micro-wave oven in different loads state lower eigenvalue.Fig. 1 is four produced with the group of U.S.
Exemplified by source semiconductor microwave oven is as microwave heating equipment, the 1st microwave source, using power as 1w, step-length 1MHz are only being opened
The different frequencies of 2400MHz to 2500MHz are scanned, record the characteristic value of zero load, and it is different with same operational factor scanning
Other load characteristic values, the list figure of obtained characteristic value.From Fig. 1, it may be clearly seen that for identical service condition,
Unloaded characteristic value and other characteristic values loaded is visibly different.Because it can be determined completely using this difference micro-
Whether ripple stove is in no-load running.
Embodiment 1
Fig. 2 shows the schematic flow sheet according to an embodiment of the invention for judging unloaded method.
As shown in Fig. 2 judge unloaded method, including：
S202, Microwave emission is carried out according to parameter preset control micro-wave oven, records incident power and reflection power；
S204, according to incident power and reflection power, determine load characteristic value；
S206, by load characteristic value compared with default characteristic value, determine whether micro-wave oven is empty according to comparative result
Carry.
In this embodiment, in micro-wave oven operation process, by step S202, according to parameter preset control micro-wave oven hair
Penetrate microwave；Again by step S204, according to the incident power and reflection power of microwave source, load characteristic value is determined, utilizes load
Whether unloaded the characteristic value judge index as micro-wave oven is judged, load when characteristic value of the micro-wave oven in zero load and load be special
Value indicative difference is obvious, can accurate judgement micro-wave oven whether be in Light Condition；Afterwards by step S206, by load characteristic value
Compared with default characteristic value, determine whether micro-wave oven is unloaded according to comparative result, realizing is not increasing sensing additionally
On the premise of device, system directly records the incident power and reflection power of microwave, micro- to judge according to the load characteristic value of determination
Whether ripple stove is in Light Condition when operating.
It should be noted that default characteristic value can be by micro-wave oven zero load and during different loads by a large amount of real
Test the obtained data of data or directly set according to historical empirical data.For example, list figure as shown in Figure 1, can
So that according to characteristic value during zero load, value is carried out to default particular value.Such as default characteristic value can be arranged to 0.
In this embodiment, load characteristic value can be calculated according to following steps：Pressed under micro-wave oven Light Condition
According to default step-length, it is scanned successively with scan frequency m to scan frequency n, and record corresponds under each scan frequency successively
Unloaded reflection power PUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
Under micro-wave oven load condition, according to default step-length, it is scanned successively with scan frequency m to scan frequency n, and
The load reflection power P that record corresponds under each scan frequency successivelyLoad reflection work(Rate and load incident power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine load characteristic value
In this embodiment, in micro-wave oven zero load, microwave incidence is carried out according to parameter preset control micro-wave oven, record is empty
Incident power and unloaded reflection power are carried, and unloaded return loss is calculated according to unloaded incident power and unloaded reflection power and is lost
Value；When micro-wave oven loads, microwave incidence is carried out according to parameter preset control micro-wave oven, record load incident power and load are instead
Power is penetrated, and load return loss loss value is obtained according to load incident power and load reflection power calculation, is lost by unloaded return loss
Load characteristic value is calculated in value and load return loss loss value.Default characteristic value is the incidence under identical parameters with load characteristic value
Microwave measurement, therefore, can by load characteristic value directly with it is unloaded when the default characteristic value that determines compare, judge micro-wave oven
Whether Light Condition is in.Here, it should be appreciated that if parameter preset is different, obtained default characteristic value may be different.
Alternatively, default characteristic value is arranged to 0；By load characteristic value compared with default characteristic value；If difference
Less than first threshold, it is determined that for zero load.
It should be noted that first threshold can be by passing through many experiments in micro-wave oven zero load and during different loads
Data that data obtain or directly set according to historical empirical data, in the embodiment value of first threshold is 1.
Embodiment 2：
The step of according to the unloaded method of the judgement described in embodiment 1, load characteristic value can also be according to following steps meter
Obtain：According to default step-length under micro-wave oven Light Condition, it is scanned successively with scan frequency m to scan frequency n, and according to
The unloaded reflection power P that secondary record corresponds under each scan frequencyUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
It is determined that default characteristic value
Under micro-wave oven load condition, according to default step-length, it is scanned successively with scan frequency m to scan frequency n, and
The load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerWith load incident power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine load characteristic value
In this embodiment, by above-mentioned formula come the unloaded characteristic value and load characteristic value that determine.
Alternatively, can be by load characteristic value compared with default characteristic value；If difference is less than Second Threshold, it is determined that
For zero load.In this embodiment, Second Threshold 1000.
Embodiment 3：
Fig. 3 shows the schematic flow sheet of the method for judgement zero load according to another embodiment of the invention.
As shown in figure 3, on the basis of embodiment 1 or embodiment 2, judging the method for zero load also includes：
S208, however, it is determined that micro-wave oven is in Light Condition, determines the number range where load characteristic value；
S210, according to result is determined, control micro-wave oven reduces operation power or stops heating.
Pass through step S208, however, it is determined that micro-wave oven is in Light Condition, can continue to determine the number where load characteristic value
Be worth scope, exist in micro-wave oven variety classes, different weight load when corresponding load characteristic value be different；Pass through
S210, it is not the method that selection directly stops heating, but select according to further when it is determined that micro-wave oven is in Light Condition
The state of the load of determination runs power to control micro-wave oven to reduce.That is, Light Condition now may be only light
Load condition, micro-wave oven can be controlled to make and correspondingly adjusted, reduce micro-wave oven run when light load power it is excessive draw
The possibility that the system of rising burns out or struck sparks, improves running of microwave oven security.
Alternatively, according to result is determined, control micro-wave oven, which reduces operation power or the method for stopping heating, to be included：If load
Characteristic value is more than the 3rd threshold value, then controls micro-wave oven to reduce operation power, and otherwise, control micro-wave oven stops heating.
Pass through the setting of the 3rd threshold value, it is possible to achieve determine whether to load still unloaded shape in light during micro-wave oven operating
State, and can correspondingly be adjusted according to judged result to control micro-wave oven to make.
It should be noted that the 3rd threshold value can be by passing through many experiments in micro-wave oven zero load and during different loads
Data that data obtain or directly set according to historical empirical data.
Certainly, it will be understood by a person skilled in the art that after micro-wave oven stops heating, alarm can be simultaneously emitted by lead to
Know user.
Embodiment 4：
Fig. 4 shows the structural representation according to an embodiment of the invention for judging unloaded system.
As shown in figure 4, judge unloaded system 300, including：
Power detecting unit 302, in the case where carrying out Microwave emission according to parameter preset control micro-wave oven, recording
Incident power and reflection power；
Arithmetic element 304, for according to incident power and reflection power, determining load characteristic value；
Judging unit 306, for compared with default characteristic value, load characteristic value to be determined into microwave according to comparative result
Whether stove is unloaded.
In this embodiment, in micro-wave oven operation process, by power detecting unit 302, controlled according to parameter preset
Micro-wave oven launches microwave；Again by arithmetic element 304, according to the incident power and reflection power of microwave source, load characteristic is determined
Value, the judge index whether unloaded as micro-wave oven is judged by the use of load characteristic value and are born characteristic value of the micro-wave oven in zero load
Load characteristic value difference during load is obvious, can accurate judgement micro-wave oven whether be in Light Condition；Pass through judging unit afterwards
306, by load characteristic value compared with default characteristic value, determine whether micro-wave oven is unloaded, realizes according to comparative result
On the premise of additionally sensor is not increased, system directly records the incident power and reflection power of microwave, according to the negative of determination
Characteristic value is carried whether to be in Light Condition when judging micro-wave oven operating.
It should be noted that default characteristic value can be by micro-wave oven zero load and during different loads by a large amount of real
Test the obtained data of data or directly set according to historical empirical data.
In this embodiment, the load characteristic value is calculated according to following steps in arithmetic element：
According to default step-length under micro-wave oven Light Condition, it is scanned successively with scan frequency m to scan frequency n, and
The unloaded reflection power P that record corresponds under each scan frequency successivelyUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
Under micro-wave oven load condition, according to the default step-length, with the scan frequency m to the scan frequency n according to
It is secondary to be scanned, and the load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerWith load incident power
PLoad incident power；
It is determined that load return loss loss valueAnd
Determine the load characteristic value
In micro-wave oven zero load, Microwave emission is carried out according to parameter preset control micro-wave oven, passes through power detecting unit
302, record unloaded incident power and unloaded reflection power, and load reflection incident power and load transmitting incident power；It is micro-
When ripple stove loads, Microwave emission is carried out according to parameter preset control micro-wave oven, by power detecting unit 302, record load into
Penetrate power and load reflection power；And by arithmetic element 304, load characteristic is calculated according to incident power and reflection power
Value, default characteristic value are the transmitting microwave measurements under identical parameters with load characteristic value, therefore, can be straight by load characteristic value
Connect with it is unloaded when the default characteristic value that determines compared with, judge whether micro-wave oven is in Light Condition.
Alternatively, judging unit is used for：Default characteristic value is arranged to 0；Load characteristic value and default characteristic value are carried out
Compare；If difference is less than first threshold, it is determined that for zero load.
Rule of thumb data, first threshold can be arranged to 1, if difference is less than 1, zero load can be defined as.
Embodiment 5：
According to the system that the judgement described in embodiment 4 is unloaded, arithmetic element can also follow the steps below calculating：
According to default step-length under micro-wave oven Light Condition, it is scanned successively with scan frequency m to scan frequency n, and
The unloaded reflection power P that record corresponds under each scan frequency successivelyUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
It is determined that default characteristic value
Under micro-wave oven load condition, according to default step-length, it is scanned successively with scan frequency m to scan frequency n, and
The load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerWith load incident power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine load characteristic value
In this embodiment, by above-mentioned formula come the unloaded characteristic value and load characteristic value that determine.
Alternatively, judging unit is used for by load characteristic value compared with default characteristic value, if difference is less than second
Threshold value, it is determined that for zero load.
In this embodiment, Second Threshold 1000.
Embodiment 6：
Fig. 5 shows the structural representation of the system of judgement zero load according to another embodiment of the invention.Such as Fig. 5 institutes
Show, on the basis of embodiment 4 or embodiment 5, judge that the system of zero load in addition to including said units, can also include：Scope
Determining unit 308, for when it is determined that micro-wave oven is in Light Condition, determining the number range where load characteristic value；Control
Unit 310, for according to result is determined, control micro-wave oven to reduce operation power or stops heating.
If it is determined that micro-wave oven is in Light Condition, scope determining unit 308 is used to continuing determining where load characteristic value
Number range, exist in micro-wave oven variety classes, different weight load when corresponding load characteristic value be different, by true
Number range where fixed load characteristic value, can be when it is determined that micro-wave oven be in Light Condition, and control unit 310 is not control
Micro-wave oven selection directly stops the method for heating, but selects to control micro-wave oven to drop according to the state of the load further determined that
Low operation power.That is, Light Condition now may be only light-load state, control unit 310 can control micro-
Ripple stove, which is made, correspondingly to be adjusted, reduce micro-wave oven run when light load power it is excessive cause that system burns out or strike sparks can
Energy property, improves running of microwave oven security.
Further, control unit 310 is used for when load characteristic value is more than three threshold values, and control micro-wave oven reduces operation
Power, otherwise, control micro-wave oven stop heating.
By control unit 310, when load characteristic value is more than three threshold values, control micro-wave oven reduces operation power, no
Then, micro-wave oven is controlled to stop heating.Realize further sentencing in light load or Light Condition when being operated to micro-wave oven
It is disconnected, and control the operation power of micro-wave oven correspondingly to be adjusted.
Parameter preset includes one below or its combination in any of the above-described embodiment：Frequency, phase, amplitude, microwave source
Number.
Micro-wave oven is that microwave source sends microwave, and microwave is a kind of electromagnetic wave, can be with by changing frequency, phase, amplitude
Change the distribution that electromagnetic wave is microwave, for micro-wave oven, the number of micro-wave oven microwave source in running order when operating
The electromagnetic wave i.e. distribution of microwave can also be changed, therefore, it is necessary to load characteristic value and default feature are determined under identical parameter
Value, judging nicety rate is improved, reduce error.
Embodiment 7：
Fig. 6 shows the structural representation of computer equipment according to an embodiment of the invention.
As shown in fig. 6, computer equipment 1, including：
Memory 12, memory 12 are used to store computer program；
Processor 14, processor 14 are used to perform the computer program stored in memory；
Processor 14 performs following steps when performing computer program：
Microwave emission is carried out according to parameter preset control micro-wave oven, records incident power and reflection power；According to incident work(
Rate and reflection power, determine load characteristic value；By load characteristic value compared with default characteristic value, determined according to comparative result
Whether micro-wave oven is unloaded.
In this embodiment, the computer program for performing the method for the judgement zero load of any of the above-described is stored in memory 12
On, when processor 14 performs computer program, it may be implemented on the premise of additionally not increasing sensor, by incident power and instead
The load characteristic value of power determination is penetrated, directly judges whether micro-wave oven is unloaded.
Embodiment 8：
Computer-readable recording medium (not shown) according to an embodiment of the invention, is stored thereon with calculating
Machine program, the judgement of any of the above-described unloaded method is realized when computer program is executed by processor.
As described above to judge that unloaded method is needed by computer program, this computer program needs to be stored in meter
In calculation machine readable storage medium storing program for executing.This computer-readable recording medium ensure that computer program can be executed by processor, from
And realize on the premise of additionally sensor is not increased, system directly records the incident power and reflection power of microwave, according to
The load characteristic value of determination come judge micro-wave oven operating when whether be in Light Condition.
Embodiment 9：
Fig. 7 shows the structural representation of the micro-wave oven of basic one embodiment of the present of invention.
As shown in fig. 7, micro-wave oven 50, including：
The system 300 of load is judged, for judging whether micro-wave oven is in Light Condition when micro-wave oven operates.
In this embodiment, the micro-wave oven 50 of any system 300 for judging load is included, can realize is not increasing additionally
On the premise of sensor, by incident power and the load characteristic value of reflection power determination, directly judge whether micro-wave oven is unloaded.
Technical scheme is described in detail above in association with accompanying drawing, judges that the method, system, computer of zero load are set
Standby, storage medium and micro-wave oven, by technical scheme, it can realize on the premise of additionally sensor is not increased,
The load characteristic value determined by incident power and reflection power, directly judges whether micro-wave oven is unloaded.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the present invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (17)
1. a kind of judge unloaded method, for micro-wave oven, it is characterised in that including:
Control the micro-wave oven to carry out Microwave emission according to parameter preset, record incident power and reflection power；
According to the incident power and the reflection power, load characteristic value is determined；And
By the load characteristic value compared with default characteristic value, determine whether the micro-wave oven is empty according to comparative result
Carry.
2. according to claim 1 judge unloaded method, it is characterised in that the load characteristic value is according to following steps
It is calculated：
According to default step-length under the micro-wave oven Light Condition, it is scanned successively with scan frequency m to scan frequency n, and
The unloaded reflection power P that record corresponds under each scan frequency successivelyUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
Under the micro-wave oven load condition, according to the default step-length, with the scan frequency m to the scan frequency n according to
It is secondary to be scanned, and the load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerIt is incident with load
Power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine the load characteristic value
3. according to claim 2 judge unloaded method, it is characterised in that
The default characteristic value is arranged to 0；
By the load characteristic value compared with the default characteristic value；
If difference is less than first threshold, it is determined that for zero load.
4. according to claim 1 judge unloaded method, it is characterised in that the load characteristic value is according to following steps
It is calculated：
According to default step-length under the micro-wave oven Light Condition, carried out successively with the scan frequency m to the scan frequency n
Scanning, and the unloaded reflection power P that record corresponds under each scan frequency successivelyUnloaded reflection powerWith unloaded incident power
PUnloaded incident power；
Determine the unloaded return loss loss value
Determine the default characteristic value
Under the micro-wave oven load condition, according to the default step-length, with the scan frequency m to the scan frequency n according to
It is secondary to be scanned, and the load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerIt is incident with load
Power PLoad incident power；
It is determined that load return loss loss valueAnd
Determine the load characteristic value
5. according to claim 4 judge unloaded method, it is characterised in that
By the load characteristic value compared with the default characteristic value；
If difference is less than Second Threshold, it is determined that for zero load.
6. according to any one of claim 1 to 5 judge unloaded method, it is characterised in that also includes：
If it is determined that the micro-wave oven is in the Light Condition, the number range where the load characteristic value is determined；
According to result is determined, control the micro-wave oven to reduce operation power or stop heating.
7. according to claim 6 judge unloaded method, it is characterised in that it is described according to determining result, described in control
Micro-wave oven, which reduces operation power or stops heating, to be included：
If the load characteristic value is more than the 3rd threshold value, the micro-wave oven is controlled to reduce operation power, otherwise, control is described micro-
Ripple stove stops heating.
8. a kind of judge unloaded system, it is characterised in that including：
Power detecting unit, in the case where carrying out Microwave emission according to parameter preset control micro-wave oven, recording incident work(
Rate and reflection power；
Arithmetic element, for according to the incident power and the reflection power, determining load characteristic value；And
Judging unit, for the load characteristic value compared with default characteristic value, to be determined described micro- according to comparative result
Whether ripple stove is unloaded.
9. according to claim 8 judge unloaded system, it is characterised in that the arithmetic element is according to following steps meter
Calculation obtains the load characteristic value：
According to default step-length under micro-wave oven Light Condition, it is scanned successively with scan frequency m to scan frequency n, and successively
The unloaded reflection power P that record corresponds under each scan frequencyUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
It is determined that unloaded return loss loss value
Under micro-wave oven load condition, according to the default step-length, entered successively with the scan frequency m to the scan frequency n
Row scanning, and the load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerWith load incident power
PLoad incident power；
It is determined that load return loss loss valueAnd
Determine the load characteristic value
10. according to claim 9 judge unloaded system, it is characterised in that the judging unit is used for：
The default characteristic value is arranged to 0；
By the load characteristic value compared with the default characteristic value；
If difference is less than first threshold, it is determined that for zero load.
11. according to claim 8 judge unloaded system, it is characterised in that the arithmetic element is according to following steps
Calculated：
According to default step-length under micro-wave oven Light Condition, it is scanned successively with scan frequency m to scan frequency n, and successively
The unloaded reflection power P that record corresponds under each scan frequencyUnloaded reflection powerWith unloaded incident power PUnloaded incident power；
Determine the unloaded return loss loss value
It is determined that default characteristic value
Under micro-wave oven load condition, according to the default step-length, entered successively with the scan frequency m to the scan frequency n
Row scanning, and the load reflection power P that record corresponds under each scan frequency successivelyLoad reflection powerWith load incident power
PLoad incident power；
Determine the load return loss loss valueAnd
Determine the load characteristic value
12. according to claim 9 judge unloaded method, it is characterised in that the judging unit is used for：
By the load characteristic value compared with the default characteristic value；
If difference is less than Second Threshold, it is determined that for zero load.
13. the system of the judgement zero load according to any one of claim 8 to 12, it is characterised in that also include：
Scope determining unit, for when it is determined that the micro-wave oven is in the Light Condition, determining the load characteristic value institute
Number range；
Control unit, for according to result is determined, controlling the micro-wave oven to reduce operation power or stopping heating.
14. according to claim 13 judge unloaded system, it is characterised in that
Described control unit is used for when the load characteristic value is more than three threshold values, controls the micro-wave oven to reduce operation work(
Rate, otherwise, the micro-wave oven is controlled to stop heating.
15. a kind of computer equipment, including memory, processor and it is stored on the memory and can be on the processor
The computer program of operation, it is characterised in that perform such as claim 1 to 7 described in the computing device during computer program
Any one of the unloaded method of judgement.
16. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program
The method that the judgement zero load as any one of claim 1 to 7 is realized when being executed by processor.
17. a kind of micro-wave oven, include the system of the judgement zero load as any one of claim 8 to 14.
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