CN109506811A - The detection method of electromagnetic heating system and its thermistor, device - Google Patents
The detection method of electromagnetic heating system and its thermistor, device Download PDFInfo
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- CN109506811A CN109506811A CN201710831528.7A CN201710831528A CN109506811A CN 109506811 A CN109506811 A CN 109506811A CN 201710831528 A CN201710831528 A CN 201710831528A CN 109506811 A CN109506811 A CN 109506811A
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- thermistor
- temperature
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- electromagnetic heating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/081—Arrangement or mounting of control or safety devices on stoves
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
本发明公开了一种电磁加热系统及其热敏电阻的检测方法、装置，所述方法包括以下步骤：在电磁加热系统加热的过程中，每隔第一预设时间控制风机处于关闭状态，并记录风机关闭时通过热敏电阻获取的温度值，记为第一温度值；延时第二预设时间后，再次记录通过热敏电阻获取的温度值，记为第二温度值；计算第一温度值与第二温度值之间的温度差值，并判断温度差值是否小于等于第一温度阈值；如果是，则判断热敏电阻处于失效状态。该方法通过每隔一段时间关闭风机一段时间来检测热敏电阻的温度变化，根据温度变化判断热敏电阻是否失效，从而可有效检测出热敏电阻的失效为一个固定值，且该固定值大于一定值的情况，使得失效检测更加准确。
The invention discloses a detection method and device for an electromagnetic heating system and a thermistor thereof. The method includes the following steps: during the heating process of the electromagnetic heating system, controlling the fan to be in a closed state every first preset time, and Record the temperature value obtained by the thermistor when the fan is turned off, and record it as the first temperature value; after a delay of the second preset time, record the temperature value obtained by the thermistor again, and record it as the second temperature value; calculate the first temperature value. The temperature difference between the temperature value and the second temperature value is determined, and whether the temperature difference is less than or equal to the first temperature threshold is determined; if so, it is determined that the thermistor is in a failed state. The method detects the temperature change of the thermistor by shutting down the fan for a period of time at regular intervals, and judges whether the thermistor fails according to the temperature change, so that the failure of the thermistor can be effectively detected as a fixed value, and the fixed value is greater than A certain value makes the failure detection more accurate.
Description
Technical field
The present invention relates to field of home appliance technology, in particular to the detection side of thermistor in a kind of electromagnetic heating system
Method, a kind of non-transitorycomputer readable storage medium, in a kind of electromagnetic heating system thermistor detection device and one
Kind electromagnetic heating system.
Background technique
In general, carrying out temperature sampling by thermistor in electromagnetic heating system such as electromagnetic oven, wherein when temperature-sensitive electricity
When resistance is failed, if continuing to control electromagnetic heating system work, the system of will lead to is damaged, or even safe thing occurs
Therefore so the failure detection of thermistor occupies highly important status.
Currently, when carrying out failure detection to thermistor, in the case where thermistor is without short circuit, when detecting heat
When the sampled value of quick resistance is greater than a certain value, with regard to no longer carrying out thermistor failure detection.But it will result in work as temperature-sensitive in this way
The sampled value of resistance is greater than a certain value and mistake of the thermistor without short circuit and when the failure of thermistor is a fixed value
Effect situation can not detected, so as to cause the risks such as system dry combustion method, on fire, internal power device failure.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of detection method of thermistor in electromagnetic heating system,
The temperature change of thermistor is detected by closing blower at regular intervals for a period of time, temperature-sensitive is judged according to temperature change
Whether resistance fails, and so as to effectively detect that the failure of thermistor is a fixed value, and the fixed value is greater than certain value
The case where, so that failure detection is more accurate.
Second object of the present invention is to propose a kind of non-transitorycomputer readable storage medium.
Third object of the present invention is to propose a kind of detection device of thermistor in electromagnetic heating system.
Fourth object of the present invention is to propose a kind of electromagnetic heating system.
In order to achieve the above objectives, the first aspect of the present invention embodiment proposes thermistor in a kind of electromagnetic heating system
Detection method, the electromagnetic heating system includes blower, the described method comprises the following steps: adding in the electromagnetic heating system
In the process of heat, the blower is controlled every the first preset time and is in close state, and records when the blower is closed and passes through
The temperature value that the thermistor obtains, is denoted as the first temperature value；It is delayed after the second preset time, record passes through the heat again
The temperature value that quick resistance obtains, is denoted as second temperature value；Calculate the temperature between first temperature value and the second temperature value
Difference is spent, and judges whether the temperature gap is less than or equal to the first temperature threshold；And if the temperature gap be less than etc.
In first temperature threshold, then judge that the thermistor is in failure state.
The detection method of thermistor in electromagnetic heating system according to an embodiment of the present invention is heated in electromagnetic heating system
During, it is in close state every the first preset time control blower, and be recorded in when blower is closed and pass through thermistor
The temperature value of acquisition is denoted as the first temperature value, after second preset time that is delayed, records the temperature obtained by thermistor again
Value, is denoted as second temperature value.Then the temperature gap between the first temperature value and second temperature value is calculated, and judges temperature gap
Whether the first temperature threshold is less than or equal to, if it is, judging that thermistor is in failure state.It can effectively detect as a result,
The case where failure of thermistor is a fixed value, and the fixed value is greater than certain value, so that failure detection is more accurate.
In addition, the detection method of thermistor can be in the electromagnetic heating system proposed according to that above embodiment of the present invention
With following additional technical characteristic:
According to one embodiment of present invention, if the temperature gap is greater than first temperature threshold, judge institute
It states thermistor and is not in the failure state, it is in the open state to control the blower.
According to one embodiment of present invention, when judging that the thermistor is in the failure state, described in control
Electromagnetic heating system stops heating, and issues warning note.
According to one embodiment of present invention, before controlling the blower and being in close state, further includes: obtain third
The variable quantity or change rate of the temperature value obtained in preset time by the thermistor；Judge whether the variable quantity is less than
Equal to the first default variable quantity, or judge whether the change rate is less than or equal to the first default change rate；If the variation
Amount is less than or equal to the described first default variable quantity or the change rate is less than or equal to the described first default change rate, then controls again
The blower is in close state.
In order to achieve the above objectives, the second aspect of the present invention embodiment proposes a kind of computer-readable storage of non-transitory
Medium is stored thereon with computer program, realizes when which is executed by processor as invention first aspect embodiment proposes
The detection method of thermistor in electromagnetic heating system.
The non-transitorycomputer readable storage medium of the embodiment of the present invention, by executing in above-mentioned electromagnetic heating system
The detection method of thermistor is closed blower at regular intervals and is come for a period of time during electromagnetic heating system heating
The temperature change for detecting thermistor, judges whether thermistor fails according to temperature change, so as to effectively detect temperature-sensitive
The case where failure of resistance is a fixed value, and the fixed value is greater than certain value, so that failure detection is more accurate.
In order to achieve the above objectives, the third aspect of the present invention embodiment proposes thermistor in a kind of electromagnetic heating system
Detection device, the electromagnetic heating system includes blower, and described device includes logging modle and control module, wherein described
Control module, for controlling the blower every the first preset time and being in during electromagnetic heating system heating
Closed state；The logging modle is denoted as recording the temperature value obtained when the blower is closed by the thermistor
First temperature value, and record the blower and close the temperature value obtained after the second preset time by the thermistor, it is denoted as
Second temperature value；The control module is also used to calculate the temperature difference between first temperature value and the second temperature value
Value, and judge whether the temperature gap is less than or equal to the first temperature threshold, and it is less than or equal to described the in the temperature gap
When one temperature threshold, judge that the thermistor is in failure state.
The detection device of thermistor in electromagnetic heating system according to an embodiment of the present invention, by control module in electromagnetism
During heating system heats, it is in close state every the first preset time control blower, is then remembered by logging modle
The temperature value that record blower is obtained when closing by thermistor is denoted as the first temperature value, and record blower is closed second and preset
The temperature value obtained after time by thermistor, is denoted as second temperature value.Finally, control module calculates the first temperature value and the
Temperature gap between two temperature values, and when temperature gap is less than or equal to the first temperature threshold, judge that thermistor is in and loses
Effect state.The failure that can effectively detect thermistor as a result, is a fixed value, and the fixed value is greater than the feelings of certain value
Condition, so that failure detection is more accurate.
In addition, the detection device of thermistor can be in the electromagnetic heating system proposed according to that above embodiment of the present invention
With following additional technical characteristic:
According to one embodiment of present invention, if the temperature gap is greater than first temperature threshold, the control
Module then judges that the thermistor is not in the failure state, and it is in the open state to control the blower.
According to one embodiment of present invention, in above-mentioned electromagnetic heating system thermistor detection device further include:
Alarm module, the control module are connected with the alarm module, wherein when judging that the thermistor is in the failure shape
When state, the control module also controls the electromagnetic heating system and stops heating, and issues alarm by the alarm module and mention
Show.
According to one embodiment of present invention, in above-mentioned electromagnetic heating system thermistor detection device further include:
Module is obtained, for obtaining in third preset time and leading to before the control module control blower is in close state
Cross the variable quantity or change rate of the temperature value that the thermistor obtains；Judgment module, for judging whether the variable quantity is small
In being equal to the first default variable quantity, or judge whether the change rate is less than or equal to the first default change rate；If the change
Change amount is less than or equal to the described first default variable quantity or the change rate is less than or equal to the described first default change rate, the control
Molding block then controls the blower again and is in close state.
In order to achieve the above objectives, the fourth aspect of the present invention embodiment proposes a kind of electromagnetic heating system comprising this
The detection device for the thermistor that invention third aspect embodiment proposes.
The electromagnetic heating system of the embodiment of the present invention, by above-mentioned detection device, in the mistake of electromagnetic heating system heating
Cheng Zhong detects the temperature change of thermistor by closing blower at regular intervals for a period of time, is sentenced according to temperature change
Whether disconnected thermistor fails, and so as to effectively detect that the failure of thermistor is a fixed value, and the fixed value is greater than
The case where certain value, so that failure detection is more accurate.
Detailed description of the invention
Fig. 1 is the flow chart of the detection method of thermistor in electromagnetic heating system according to an embodiment of the present invention；
Fig. 2 is the block diagram of the detection device of thermistor in electromagnetic heating system according to an embodiment of the present invention；
And
Fig. 3 is the block diagram of electromagnetic heating system according to an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The detection of thermistor in the electromagnetic heating system proposed according to embodiments of the present invention described with reference to the accompanying drawings
Method, non-transitorycomputer readable storage medium, in electromagnetic heating system thermistor detection device and electromagnetic heating
System.
Fig. 1 is the flow chart of the detection method of thermistor in electromagnetic heating system according to an embodiment of the present invention.Wherein,
Electromagnetic heating system includes blower (fan).
As shown in Figure 1, the detection method of thermistor may include following step in the electromagnetic heating system of the embodiment of the present invention
It is rapid:
S1 is in close state during electromagnetic heating system heating every the first preset time control blower, and
The temperature value obtained when blower is closed by thermistor is recorded, the first temperature value is denoted as.
S2, be delayed the second preset time after, record again by thermistor obtain temperature value, be denoted as second temperature
Value.
S3 calculates the temperature gap between the first temperature value and second temperature value, and judges whether temperature gap is less than
In the first temperature threshold.Wherein, the first preset time, the second preset time, the first temperature threshold can carry out according to the actual situation
Calibration.
S4 judges that thermistor is in failure state if temperature gap is less than or equal to the first temperature threshold.
According to one embodiment of present invention, if temperature gap is greater than the first temperature threshold, judge thermistor not
In failure state, it is in the open state to control blower.
Further, when judging that thermistor is in failure state, control electromagnetic heating system stops heating, and issues
Warning note.
Specifically, for the electromagnetic heating system (such as electromagnetic oven) with blower, in the mistake of electromagnetic heating system heating
Cheng Zhong, blower are generally constantly in open state, the heat in system are discharged, to achieve the purpose that cooling.And if
Control blower is in close state, then the heat in system can not be discharged in time, cause the temperature in system to increase, so can base
Failure detection is carried out to thermistor in the principle.
Specifically, during electromagnetic heating system heats, control blower is in the open state, then pre- every first
If time control blower is in close state, and records the temperature value that close moment is obtained by thermistor, i.e. thermistor
Sampled value, be denoted as the first temperature value, then, keep blower close a period of time, record again by thermistor obtain
Temperature value is denoted as second temperature value.The system temperature of a period of time is higher than temperature when blower is just closed after being closed due to blower,
So under normal circumstances, a biggish difference will be present between the first temperature value detected by thermistor and second temperature value
Value, and if second temperature value is little or almost unchanged with respect to the variation of the first temperature value, illustrate that thermistor loses
Effect.
For example, it is assumed that when blower is closed, the temperature gap twice obtained on thermistor is 5 DEG C, and the first temperature
Threshold value is 0.5 DEG C, then illustrates that thermistor is in normal condition, electromagnetic heating system works at this time, and restores blower just
Normal operation, and tested again after being delayed a period of time；If the temperature gap twice obtained on thermistor is 0 DEG C,
Illustrate that thermistor can not detect temperature change, thermistor has failed, and electromagnetic heating system stops heater immediately at this time
Make, and issue warning note (such as warning lamp flashing, buzzer rings), so that operator makes corresponding place according to prompt
Reason.
Therefore, the detection method of the thermistor of the embodiment of the present invention, when by closing one section of blower at regular intervals
Between detect the temperature change of thermistor, judge whether thermistor fails according to temperature change, so as to realize to heat
Effective detection of quick resistance, is greater than a certain value including the sampled value when thermistor and thermistor is without short circuit and temperature-sensitive electricity
The failure conditions when failure of resistance is a fixed value, substantially increase the accuracy of failure detection.
In view of the importance to radiate in electromagnetic heating system heating process, so in order to avoid blower frequent start-stop causes
Heat dissipation effect is bad and reduces the reliability of blower, and since blower closing can impact the temperature of thermistor, right
System control has an impact, and in an embodiment of the present invention, the changing value that can first pass through temperature during fan operation comes to heat
Quick resistance is detected, only when some special circumstances occur, for example, the temperature value of detection is unchanged or varies less
When, then thermistor detected in such a way that blower is closed in control.
According to one embodiment of present invention, before control blower is in close state, further includes: it is default to obtain third
The variable quantity or change rate of the temperature value obtained in time by thermistor；It is default to judge whether variable quantity is less than or equal to first
Variable quantity, or judge whether change rate is less than or equal to the first default change rate；If variable quantity is less than or equal to the first default change
Change amount or change rate are less than or equal to the first default change rate, then control blower again and be in close state.Wherein, when third is default
Between, the first default variable quantity and the first default change rate can be demarcated according to the actual situation.
Specifically, first controlling blower during electromagnetic heating system heating and being constantly in open state, and in wind
During machine is in the open state, current temperature value is obtained by thermistor in real time, and judges a period of time (such as third
Preset time) interior temperature value variable quantity or change rate.If variable quantity is greater than the first default variable quantity or change rate is greater than
First default change rate then illustrates that thermistor is in normal condition；If variable quantity be less than or equal to the first default variable quantity or
Person's change rate is less than or equal to the first default change rate, then illustrates the case where current thermistor there may be failure, at this time again
Thermistor is detected in such a way that blower is closed in control, to further determine that whether thermistor is in failure shape
State.
In conclusion in electromagnetic heating system according to an embodiment of the present invention thermistor detection method, in electromagnetism plus
It during hot systems heat, is in close state, and is recorded in logical when blower is closed every the first preset time control blower
The temperature value for crossing thermistor acquisition is denoted as the first temperature value, and after second preset time that is delayed, record passes through thermistor again
The temperature value of acquisition is denoted as second temperature value.Then the temperature gap between the first temperature value and second temperature value is calculated, and is sentenced
Whether disconnected temperature gap is less than or equal to the first temperature threshold, if it is, judging that thermistor is in failure state.As a result, may be used
To realize effective detection to thermistor, it is greater than a certain value including the sampled value when thermistor and thermistor is not short
The failure conditions when failure of road and thermistor is a fixed value, substantially increase the accuracy of failure detection.
In order to realize above-described embodiment, the invention also provides a kind of non-transitorycomputer readable storage mediums, thereon
It is stored with computer program, which realizes the detection side of thermistor in above-mentioned electromagnetic heating system when being executed by processor
Method.
The non-transitorycomputer readable storage medium of the embodiment of the present invention, by executing in above-mentioned electromagnetic heating system
The detection method of thermistor is closed blower at regular intervals and is come for a period of time during electromagnetic heating system heating
The temperature change for detecting thermistor, judges whether thermistor fails according to temperature change, so as to effectively detect temperature-sensitive
The case where failure of resistance is a fixed value, and the fixed value is greater than certain value, so that failure detection is more accurate.
Fig. 2 is the block diagram of the detection device of thermistor in electromagnetic heating system according to an embodiment of the present invention.
As shown in Fig. 2, electromagnetic heating system includes blower 30, the detection device of thermistor includes control module 10 and logging modle
20。
Wherein, control module 10 is used to control wind every the first preset time during electromagnetic heating system heating
Machine 30 is in close state.Logging modle 20 is used to record the temperature value obtained when blower 30 is closed by thermistor, is denoted as
First temperature value, and record blower 30 and close the temperature value obtained after the second preset time by thermistor, it is denoted as the second temperature
Angle value.Control module 10 is also used to calculate the temperature gap between the first temperature value and second temperature value, and judges temperature gap
Whether it is less than or equal to the first temperature threshold, and when temperature gap is less than or equal to the first temperature threshold, judges that thermistor is in
Failure state.
According to one embodiment of present invention, if temperature gap is greater than the first temperature threshold, control module 10 ifs, judges
Thermistor is not in failure state, and it is in the open state to control blower 30.
According to one embodiment of present invention, as shown in Fig. 2, above-mentioned detection device further includes alarm module 40, control
Module 10 is connected with alarm module 40, wherein when judging that thermistor is in failure state, control module 10 also controls electromagnetism
Heating system stops heating, and issues warning note by alarm module 40.
According to one embodiment of present invention, as shown in Fig. 2, above-mentioned detection device further includes obtaining module 50 and judgement
Module 60.Wherein, it obtains module 50 to be used for before the control blower 30 of control module 10 is in close state, it is default to obtain third
The variable quantity or change rate of the temperature value obtained in time by thermistor；Judgment module 60 is for judging whether variable quantity is small
In being equal to the first default variable quantity, or judge whether change rate is less than or equal to the first default change rate；If variable quantity is less than
It is less than or equal to the first default change rate equal to the first default variable quantity or change rate, control module 10 then controls at blower 30 again
In closed state.
It should be noted that undisclosed in the detection device of thermistor in the electromagnetic heating system of the embodiment of the present invention
Details please refers to details disclosed in the detection method of thermistor in the electromagnetic heating system of the embodiment of the present invention, specifically
I will not elaborate.
The detection device of thermistor in electromagnetic heating system according to an embodiment of the present invention, by control module in electromagnetism
During heating system heats, it is in close state every the first preset time control blower, is then remembered by logging modle
The temperature value that record blower is obtained when closing by thermistor is denoted as the first temperature value, and record blower is closed second and preset
The temperature value obtained after time by thermistor, is denoted as second temperature value.Finally, control module calculates the first temperature value and the
Temperature gap between two temperature values, and when temperature gap is less than or equal to the first temperature threshold, judge that thermistor is in and loses
Effect state.The failure that can effectively detect thermistor as a result, is a fixed value, and the fixed value is greater than the feelings of certain value
Condition, so that failure detection is more accurate.
Fig. 3 is the block diagram of electromagnetic heating system according to an embodiment of the present invention.As shown in figure 3, the present invention is implemented
The electromagnetic heating system 1000 of example includes the detection device 100 of above-mentioned thermistor.
The electromagnetic heating system of the embodiment of the present invention, by the detection device of above-mentioned thermistor, in electromagnetic heating system
During system heating, the temperature change of thermistor is detected by closing blower at regular intervals for a period of time, according to
Temperature change judges whether thermistor fails, so as to effectively detect that the failure of thermistor is a fixed value, and should
Fixed value is greater than the case where certain value, so that failure detection is more accurate.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium include the following: there is the electricity of one or more wirings
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can then be edited, be interpreted or when necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware in another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized: have for data-signal is realized the logic gates of logic function from
Logic circuit is dissipated, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as to limit of the invention
System, those skilled in the art can be changed above-described embodiment, modify, replace and become within the scope of the invention
Type.
Claims (10)
1. the detection method of thermistor in a kind of electromagnetic heating system, which is characterized in that the electromagnetic heating system includes wind
Machine the described method comprises the following steps:
During electromagnetic heating system heating, the blower is controlled every the first preset time and is in close state,
And the temperature value obtained when the blower is closed by the thermistor is recorded, it is denoted as the first temperature value；
It is delayed after the second preset time, records the temperature value obtained by the thermistor again, be denoted as second temperature value；
The temperature gap between first temperature value and the second temperature value is calculated, and judges whether the temperature gap is small
In equal to the first temperature threshold；And
If the temperature gap is less than or equal to first temperature threshold, judge that the thermistor is in failure state.
2. the detection method of thermistor in electromagnetic heating system as described in claim 1, which is characterized in that if the temperature
It spends difference and is greater than first temperature threshold, then judge that the thermistor is not in the failure state, control the blower
It is in the open state.
3. the detection method of thermistor in electromagnetic heating system as described in claim 1, which is characterized in that described in judgement
When thermistor is in the failure state, controls the electromagnetic heating system and stop heating, and issue warning note.
4. the detection method of thermistor in electromagnetic heating system as claimed in any one of claims 1-3, which is characterized in that
Before controlling the blower and being in close state, further includes:
Obtain the variable quantity or change rate of the temperature value obtained in third preset time by the thermistor；
Judge whether the variable quantity is less than or equal to the first default variable quantity, or judges whether the change rate is less than or equal to
One default change rate；
If the variable quantity is less than or equal to the described first default variable quantity or the change rate is less than or equal to described first in advance
If change rate, then the blower is controlled again and is in close state.
5. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, which is characterized in that the program quilt
The detection method of thermistor in the electromagnetic heating system as described in any in claim 1-4 is realized when processor executes.
6. the detection device of thermistor in a kind of electromagnetic heating system, which is characterized in that the electromagnetic heating system includes wind
Machine, described device include logging modle and control module, wherein
The control module, described in being controlled every the first preset time during electromagnetic heating system heating
Blower is in close state；
The logging modle is denoted as first for recording the temperature value obtained when the blower is closed by the thermistor
Temperature value, and record the blower and close the temperature value obtained after the second preset time by the thermistor, it is denoted as second
Temperature value；
The control module is also used to calculate the temperature gap between first temperature value and the second temperature value, and sentences
Whether the temperature gap that breaks is less than or equal to the first temperature threshold, and is less than or equal to first temperature threshold in the temperature gap
When value, judge that the thermistor is in failure state.
7. the detection device of thermistor in electromagnetic heating system as claimed in claim 6, which is characterized in that if the temperature
It spends difference and is greater than first temperature threshold, the control module then judges that the thermistor is not in the failure state,
And it is in the open state to control the blower.
8. the detection device of thermistor in electromagnetic heating system as claimed in claim 6, which is characterized in that further include alarm
Module, the control module are connected with the alarm module, wherein when judging that the thermistor is in the failure state
When, the control module also controls the electromagnetic heating system and stops heating, and issues warning note by the alarm module.
9. the detection device of thermistor in the electromagnetic heating system as described in any one of claim 6-8, which is characterized in that
Further include:
Module is obtained, for obtaining third preset time before the control module control blower is in close state
The variable quantity or change rate of the interior temperature value obtained by the thermistor；
Judgment module for judging whether the variable quantity is less than or equal to the first default variable quantity, or judges the change rate
Whether the first default change rate is less than or equal to；
If the variable quantity is less than or equal to the described first default variable quantity or the change rate is less than or equal to described first in advance
If change rate, the control module then controls the blower again and is in close state.
10. a kind of electromagnetic heating system, which is characterized in that including the thermistor as described in any one of claim 6-9
Detection device.
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