CN104422562A - Electric pressure cooker and failure detecting device and method thereof - Google Patents
Electric pressure cooker and failure detecting device and method thereof Download PDFInfo
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- CN104422562A CN104422562A CN201310393055.9A CN201310393055A CN104422562A CN 104422562 A CN104422562 A CN 104422562A CN 201310393055 A CN201310393055 A CN 201310393055A CN 104422562 A CN104422562 A CN 104422562A
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Abstract
The invention discloses a failure detecting device of an electric pressure cooker. The device comprises a pressure sensor and a controller, wherein the pressure sensor is used for detecting pressure value in the electric pressure cooker; the controller is connected with the pressure sensor. When the pressure value is smaller than first preset value or greater than second preset value, the controller judges that the pressure sensor fails, wherein the second preset value is greater than the first preset value. The failure detecting device of the electric pressure cooker can detect whether the pressure sensor fails or not and prompts a user to take corresponding safety measures when the pressure sensor fails, so that the using safety of a product is improved, and the safety of a user is guaranteed in use. The invention also discloses a failure detecting method of the electric pressure cooker and the electric pressure cooker.
Description
Technical field
The present invention relates to household electrical appliance technical field, particularly a kind of failure detector of electric pressure cooking saucepan, a kind of fault detection method of electric pressure cooking saucepan and a kind of electric pressure cooking saucepan.
Background technology
Existing electric pressure cooking saucepan in use adopts pressure transducer to carry out pressure detection, and electric control gear is then according to the pressure detected, control voltage power pot heats, thus realizes the cooking process of electric pressure cooking saucepan.
But in the process using electric pressure cooking saucepan, Problems existing is, pressure transducer, in use if there is fault, will cause the pressure that detects inaccurate, like this, electric control gear just can not be correct control voltage power pot in pressure, have influence on the use safety of user.
Summary of the invention
Object of the present invention is intended to solve above-mentioned technological deficiency at least to a certain extent.
For this reason, the present invention's first object is the failure detector proposing a kind of electric pressure cooking saucepan, whether the failure detector of this electric pressure cooking saucepan can break down by detected pressures sensor, and reminding user takes corresponding safety practice when pressure sensor failure being detected, improve the security that product uses, ensure that the use safety of user.
The present invention's second object is the fault detection method proposing a kind of electric pressure cooking saucepan.The present invention's the 3rd object is to propose a kind of electric pressure cooking saucepan.
For achieving the above object, the failure detector of a kind of electric pressure cooking saucepan that first aspect present invention embodiment proposes, comprising: pressure transducer, and described pressure transducer detects the force value in electric pressure cooking saucepan; Controller, described controller is connected with described pressure transducer, and when described force value is less than the first preset value or is greater than the second preset value, described controller judges described pressure sensor failure, and wherein, described second preset value is greater than described first preset value.
According to the failure detector of the electric pressure cooking saucepan that the embodiment of the present invention proposes, force value in the electric pressure cooking saucepan detected pressure transducer by controller is judged, and when pot inner pressure value is less than the first preset value or is greater than the second preset value, judge pressure sensor failure, thus realize detecting the fault of pressure transducer, affect the problem of user security when solving the pressure sensor failure of electric pressure cooking saucepan, improve the safety in utilization of product, ensure the use safety of user.
In one embodiment of the invention, the failure detector of above-mentioned electric pressure cooking saucepan, also comprises: display, and described display is connected with described controller, the described display display failure message when described controller judges described pressure sensor failure.Wherein, described display can be liquid crystal display.
Further, the failure detector of above-mentioned electric pressure cooking saucepan, also comprises: prompting device, and described prompting device is connected with described controller, and when described controller judges described pressure sensor failure, described prompting device sends alarm.Wherein, described prompting device can be hummer.
Utilize display and/or prompting device to carry out malfunction coefficient and/or alarm, the pressure sensor failure in reminding user electric pressure cooking saucepan, use during electric pressure cooking saucepan and should be noted that safety, and reminding user keeps in repair in time.In addition, also can take some safety prevention measures to electric pressure cooking saucepan, such as controller control voltage power pot stops heating, avoids damaging because of fault.
In one embodiment of the invention, when described force value is more than or equal to described first preset value and is less than or equal to described second preset value, described controller judges that described pressure transducer is normal, and controls described electric pressure cooking saucepan and carry out work.
In one particular embodiment of the present invention, described controller comprises the peripheral circuit of control chip and control chip, wherein, the peripheral circuit of described control chip comprises: the first resistance, one end of described first resistance is connected with the output terminal of described pressure transducer, the other end ground connection of described first resistance; First diode, described first diode and described first resistor coupled in parallel, the plus earth of described first diode, the negative electrode of described first diode is connected with one end of described first resistance; Second diode, described second diode and described first Diode series, the anode of described second diode is connected with the negative electrode of described first diode, and the negative electrode of described second diode is connected with default power supply; First electric capacity of series connection and the second resistance, one end ground connection of described first electric capacity, the other end of described first electric capacity is connected respectively with described control chip one end with described second resistance, and the other end of described second resistance is connected with one end of described first resistance.
For achieving the above object, the fault detection method of a kind of electric pressure cooking saucepan that second aspect present invention embodiment proposes, comprises the following steps: detect the force value in electric pressure cooking saucepan; When described force value is less than the first preset value or is greater than the second preset value, then judge the pressure sensor failure in described electric pressure cooking saucepan, wherein, described second preset value is greater than described first preset value.
According to the fault detection method of the electric pressure cooking saucepan that the embodiment of the present invention proposes, by judging the force value in the electric pressure cooking saucepan detected, when pot inner pressure value is less than the first preset value or is greater than the second preset value, then judge pressure sensor failure, thus realize detecting the fault of pressure transducer, affect the problem of user security when solving the pressure sensor failure of electric pressure cooking saucepan, improve the safety in utilization of product, ensure the use safety of user.In addition, the fault detection method of this electric pressure cooking saucepan is simple and reliable, is easy to carry out.
In one embodiment of the invention, the fault detection method of described electric pressure cooking saucepan, also comprise: when described force value is more than or equal to described first preset value and is less than or equal to described second preset value, judge that described pressure transducer is normal, and control described electric pressure cooking saucepan and carry out work.
For achieving the above object, third aspect present invention embodiment proposes a kind of electric pressure cooking saucepan, comprises the failure detector of above-mentioned electric pressure cooking saucepan.
According to the electric pressure cooking saucepan that the embodiment of the present invention proposes, can detect the fault of pressure transducer, when solving the pressure sensor failure of electric pressure cooking saucepan, affect the problem of user security, improve the safety in utilization of product, ensure the use safety of user.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the block diagram of the failure detector of electric pressure cooking saucepan according to the embodiment of the present invention;
Fig. 2 is the block diagram of the failure detector of electric pressure cooking saucepan according to an embodiment of the invention;
Fig. 3 is the circuit diagram of the failure detector of electric pressure cooking saucepan according to the present invention's specific embodiment;
Fig. 4 is that the failure detector middle controller of electric pressure cooking saucepan according to an embodiment of the invention carries out process schematic diagram to the pressure data detected;
Fig. 5 is the process flow diagram of the fault detection method of electric pressure cooking saucepan according to the embodiment of the present invention; And
Fig. 6 is the block diagram of the electric pressure cooking saucepan according to the embodiment of the present invention.
Reference numeral:
Peripheral circuit 202, first resistance R1, the first diode D1 of pressure transducer 10, controller 20, control chip 201, control chip, the second diode D2, the first electric capacity C1 and the second resistance R2.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
With reference to description below and accompanying drawing, these and other aspects of embodiments of the invention will be known.Describe at these and in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, representing some modes of the principle implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
Describe the failure detector of electric pressure cooking saucepan, the fault detection method of electric pressure cooking saucepan that propose according to the embodiment of the present invention with reference to the accompanying drawings and there is the electric pressure cooking saucepan of this failure detector.
Fig. 1 is the block diagram of the failure detector of electric pressure cooking saucepan according to the embodiment of the present invention.As shown in Figure 1, the failure detector of this electric pressure cooking saucepan comprises: pressure transducer 10 and controller 20.Wherein, pressure transducer 10 detects the force value in electric pressure cooking saucepan.Controller 20 is connected with pressure transducer 10, and when pot inner pressure value is less than the first preset value or is greater than the second preset value, controller 20 judges pressure transducer 10 fault, and wherein, the second preset value is greater than the first preset value.
That is, the pressure signal in the electric pressure cooking saucepan detected is sent to controller 20 by pressure transducer 10, when controller 20 receives pot inner pressure information, and judges that whether the force value detected is normal.If the force value detected is in abnormality, be not namely normal force value, controller 20 judges that pressure transducer 10 breaks down.
In one embodiment of the invention, as shown in Figure 2, the failure detector of above-mentioned electric pressure cooking saucepan also comprises: display 30.Display 30 is connected with controller 20, and when controller 30 judges pressure transducer 10 fault, display 30 shows failure message.Wherein, display 30 can be liquid crystal display, also can be light-emitting diode display.
Further, as shown in Figure 2, the failure detector of above-mentioned electric pressure cooking saucepan also comprises: prompting device 40.Prompting device 40 is connected with controller 20, and when controller 20 judges pressure transducer 10 fault, prompting device 40 sends alarm.Wherein, prompting device 40 can be hummer.
Utilize display and/or prompting device to carry out malfunction coefficient and/or alarm, the pressure sensor failure in reminding user electric pressure cooking saucepan, use during electric pressure cooking saucepan and should be noted that safety, and reminding user keeps in repair in time.In addition, when controller judges pressure sensor failure, also can take some safety prevention measures to electric pressure cooking saucepan, such as controller control voltage power pot stops heating, thus avoids damaging electric pressure cooking saucepan because of pressure sensor failure.
In one particular embodiment of the present invention, as shown in Figure 3, controller 20 comprises the peripheral circuit 202 of control chip 201 and control chip, wherein, the peripheral circuit 202 of control chip comprises: the first resistance R1, the first diode D1, the second diode D2, the first electric capacity C1 and the second resistance R2.
Wherein, one end of the first resistance R1 is connected with the output terminal TTOP of pressure transducer 10, the other end ground connection of the first resistance R1.First diode D1 is in parallel with the first resistance R1, the plus earth of the first diode D1, and the negative electrode of the first diode D1 is connected with one end of the first resistance R1.Second diode D2 connects with the first diode D1, and the anode of the second diode D2 is connected with the negative electrode of the first diode D1, and the negative electrode of the second diode D2 is connected with default power vd D1.First electric capacity C1 and the second resistance R2 connects, one end ground connection of the first electric capacity C1, the other end of the first electric capacity C1 is connected with one end of the second resistance R2 respectively with the pin TTOP-IC of control chip 201, and the other end of the second resistance R2 is connected with one end of the first resistance R1.
Further, in one embodiment of the invention, when force value is more than or equal to the first preset value and is less than or equal to the second preset value, controller 20 judges that pressure transducer 10 is normal, and control voltage power pot carries out work.
Specifically, in an example of the present invention, as shown in Figure 4, the first preset value can be B, second preset value can be C, the entire scope of the pressure data that pressure transducer 10 detects between A-D region, wherein, A is less than B, and B is less than C, and C is less than D, such as, A can be 0, B can be 10H, C can be FCH, D can be FFH, is understandable that, the data of A, B, C, D can change adjustment, are not fixing data, specifically can according to the conscientious demarcation of actual conditions.
Particularly, as shown in Figure 4, region A-B and region C-D is abnormal data district, region B-C is normal data district, if the pressure data that pressure transducer 10 detects is within the scope of normal data district, then judge that pressure transducer 10 is normal, if the pressure data that pressure transducer 10 detects is in abnormal data district, then judge pressure transducer 10 fault, thus reach the object of detected pressures sensor fault.
In embodiments of the present invention, pressure transducer 10 detects the force value in electric pressure cooking saucepan, and force value is sent to controller 20 by circuit, when controller 20 receives the signal of force value, judges that whether the force value that pressure transducer 10 detects is normal.If force value is in abnormality, namely the force value that detects of pressure transducer 10 is in abnormal data district, and controller 20 judges that pressure transducer 10 breaks down; If force value is in normal condition, namely the force value that detects of pressure transducer 10 is in normal data district, and controller 20 judges that pressure transducer 10 is normal, and controller 20 control voltage power pot carries out work.
According to the failure detector of the electric pressure cooking saucepan that the embodiment of the present invention proposes, force value in the electric pressure cooking saucepan detected pressure transducer by controller is judged, and when pot inner pressure value is less than the first preset value or is greater than the second preset value, judge pressure sensor failure, thus realize detecting the fault of pressure transducer, affect the problem of user security when solving the pressure sensor failure of electric pressure cooking saucepan, improve the safety in utilization of product, ensure the use safety of user.
Fig. 5 is the process flow diagram of the fault detection method of electric pressure cooking saucepan according to the embodiment of the present invention.As shown in Figure 5, the fault detection method of this electric pressure cooking saucepan comprises the following steps:
S1, detects the force value in electric pressure cooking saucepan.
S2, when force value is less than the first preset value or is greater than the second preset value, then judges the pressure sensor failure in electric pressure cooking saucepan, and wherein, the second preset value C is greater than the first preset value B, i.e. C>B.
That is, when the force value detected is less than B or is greater than C, then pressure sensor failure is judged.Concrete as shown in Figure 4, the force value detected between region A-B or region C-D, i.e. abnormal data district, therefore pressure sensor failure.
Further, when force value is more than or equal to the first preset value and is less than or equal to the second preset value, judge that pressure transducer is normal, and control voltage power pot carries out work.
That is, when the force value detected is more than or equal to B and is less than or equal to C, then judge that pressure transducer is normal.As shown in Figure 4, the force value detected is between the B-C of region, i.e. normal data district, therefore pressure transducer is normal, control voltage power pot carries out work.
According to the fault detection method of the electric pressure cooking saucepan that the embodiment of the present invention proposes, by judging the force value in the electric pressure cooking saucepan detected, when pot inner pressure value is less than the first preset value or is greater than the second preset value, then judge pressure sensor failure, thus realize detecting the fault of pressure transducer, affect the problem of user security when solving the pressure sensor failure of electric pressure cooking saucepan, improve the safety in utilization of product, ensure the use safety of user.In addition, the fault detection method of this electric pressure cooking saucepan is simple and reliable, is easy to carry out.
Fig. 6 is the block diagram of the electric pressure cooking saucepan according to the embodiment of the present invention.As shown in Figure 6, this electric pressure cooking saucepan 601 comprises the failure detector 602 of above-mentioned electric pressure cooking saucepan.
According to the electric pressure cooking saucepan that the embodiment of the present invention proposes, can detect the fault of pressure transducer, when solving the pressure sensor failure of electric pressure cooking saucepan, affect the problem of user security, improve the safety in utilization of product, ensure the use safety of user.
Describe and can be understood in process flow diagram or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this instructions, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), ROM (read-only memory) (ROM), erasablely edit ROM (read-only memory) (EPROM or flash memory), fiber device, and portable optic disk ROM (read-only memory) (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanning to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer memory.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be ROM (read-only memory), disk or CD etc.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (10)
1. a failure detector for electric pressure cooking saucepan, is characterized in that, comprising:
Pressure transducer, described pressure transducer detects the force value in electric pressure cooking saucepan; And
Controller, described controller is connected with described pressure transducer, and when described force value is less than the first preset value or is greater than the second preset value, described controller judges described pressure sensor failure, and wherein, described second preset value is greater than described first preset value.
2. the failure detector of electric pressure cooking saucepan as claimed in claim 1, is characterized in that, also comprise:
Display, described display is connected with described controller, the described display display failure message when described controller judges described pressure sensor failure.
3. the failure detector of electric pressure cooking saucepan as claimed in claim 1 or 2, is characterized in that, also comprise:
Prompting device, described prompting device is connected with described controller, and when described controller judges described pressure sensor failure, described prompting device sends alarm.
4. the failure detector of electric pressure cooking saucepan as claimed in claim 3, it is characterized in that, described prompting device is hummer.
5. the failure detector of electric pressure cooking saucepan as claimed in claim 2, it is characterized in that, described display is liquid crystal display.
6. the failure detector of electric pressure cooking saucepan as claimed in claim 1, it is characterized in that, described controller comprises the peripheral circuit of control chip and control chip, and wherein, the peripheral circuit of described control chip comprises:
First resistance, one end of described first resistance is connected with the output terminal of described pressure transducer, the other end ground connection of described first resistance;
First diode, described first diode and described first resistor coupled in parallel, the plus earth of described first diode, the negative electrode of described first diode is connected with one end of described first resistance;
Second diode, described second diode and described first Diode series, the anode of described second diode is connected with the negative electrode of described first diode, and the negative electrode of described second diode is connected with default power supply;
First electric capacity of series connection and the second resistance, one end ground connection of described first electric capacity, the other end of described first electric capacity is connected respectively with described control chip one end with described second resistance, and the other end of described second resistance is connected with one end of described first resistance.
7. the failure detector of electric pressure cooking saucepan as claimed in claim 1, it is characterized in that, when described force value is more than or equal to described first preset value and is less than or equal to described second preset value, described controller judges that described pressure transducer is normal, and controls described electric pressure cooking saucepan and carry out work.
8. an electric pressure cooking saucepan, is characterized in that, comprises the failure detector of the electric pressure cooking saucepan as described in any one of claim 1-7.
9. a fault detection method for electric pressure cooking saucepan, is characterized in that, comprises the following steps:
Detect the force value in electric pressure cooking saucepan; And
When described force value is less than the first preset value or is greater than the second preset value, then judge the pressure sensor failure in described electric pressure cooking saucepan, wherein, described second preset value is greater than described first preset value.
10. the fault detection method of electric pressure cooking saucepan as claimed in claim 9, is characterized in that, also comprise:
When described force value is more than or equal to described first preset value and is less than or equal to described second preset value, judge that described pressure transducer is normal, and control described electric pressure cooking saucepan and carry out work.
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| CN201310393055.9A CN104422562A (en) | 2013-09-02 | 2013-09-02 | Electric pressure cooker and failure detecting device and method thereof |
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| CN201310393055.9A CN104422562A (en) | 2013-09-02 | 2013-09-02 | Electric pressure cooker and failure detecting device and method thereof |
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| CN108685477B (en) * | 2017-04-10 | 2022-05-31 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking method, device and system and cooking appliance |
| CN109696196A (en) * | 2017-10-24 | 2019-04-30 | 浙江绍兴苏泊尔生活电器有限公司 | Cooking apparatus and its detection method and device, storage medium, processor |
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| CN110859489A (en) * | 2018-08-27 | 2020-03-06 | 佛山市顺德区美的电热电器制造有限公司 | Vacuum cooking utensil, method and device for controlling pressure relief of vacuum cooking utensil and storage medium |
| CN110500710A (en) * | 2019-07-30 | 2019-11-26 | 广东申菱环境系统股份有限公司 | A kind of air-conditioning fault self-diagnosis method |
| CN110500710B (en) * | 2019-07-30 | 2021-07-20 | 广东申菱环境系统股份有限公司 | Air conditioner fault self-diagnosis method |
| CN111407157A (en) * | 2020-03-30 | 2020-07-14 | 九阳股份有限公司 | Control method for control panel of cooking appliance and cooking appliance |
| CN112903187A (en) * | 2021-03-11 | 2021-06-04 | 武汉飞恩微电子有限公司 | Method and device for detecting faults of pressure sensor in electric pressure cooker |
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Application publication date: 20150318 |