CN117990233A - Kitchen range NTC failure detection method and device and electronic equipment - Google Patents
Kitchen range NTC failure detection method and device and electronic equipment Download PDFInfo
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Abstract
The invention provides a method and a device for detecting NTC failure of a kitchen range and electronic equipment, relating to the technical field of kitchen appliances, and comprising the following steps: when detecting that the cooker is started to work, detecting the temperature of the cooker through an NTC temperature sensor, and determining an initial detection temperature; determining a target time interval, and determining the real-time detection temperature of the kitchen range through the NTC in the target time interval; according to the difference value between the real-time detection temperature and the initial detection temperature, the NTC is subjected to failure detection, and the accuracy of NTC failure detection can be remarkably improved, so that the use safety of the kitchen range is improved.
Description
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to a method and a device for detecting NTC failure of a kitchen range and electronic equipment.
Background
The range is generally required to be provided with an over-temperature protection mechanism, so that over-temperature protection is performed when the temperature exceeds a set temperature value, a driving circuit is closed and a fault signal is output, and currently, related technology proposes that an NTC can be arranged at a range such as an electromagnetic range, a gas range and the like for performing over-temperature protection on the range, and failure detection is performed on the NTC according to the temperature change condition detected by the NTC when the range is used, but in the scheme, false detection of failure of the NTC may occur, and the non-failed NTC is judged to be failed, for example, when the range is in a use scene of a low temperature section such as water heating, the temperature of the water is not increased any more after reaching 100 ℃, and the false judgment is failed, so that the accuracy of the failure detection of the NTC is reduced.
Disclosure of Invention
Therefore, the invention aims to provide a method and a device for detecting NTC failure of a kitchen range and electronic equipment, which can remarkably improve the accuracy of NTC failure detection, thereby improving the use safety of the kitchen range.
In a first aspect, an embodiment of the present invention provides a method for detecting NTC failure of a cooktop, where the method includes: when detecting that the cooker is started to work, detecting the temperature of the cooker through an NTC temperature sensor, and determining an initial detection temperature; determining a target time interval, and determining the real-time detection temperature of the kitchen range through the NTC in the target time interval; and performing failure detection on the NTC according to the difference between the real-time detection temperature and the initial detection temperature.
In one embodiment, the step of determining the target time interval comprises: and determining a target time interval from a preset time interval set according to gear information when the cooker works, wherein the higher the power corresponding to the gear information is, the shorter the target time interval is, the lower the power corresponding to the gear information is, and the longer the target time interval is.
In one embodiment, the step of performing failure detection on the NTC according to a difference between the real-time detected temperature and the initial detected temperature includes: when the working time of the kitchen range is not more than the target time interval; if the difference value between the real-time detection temperature and the initial detection temperature at any moment in the target time interval is not smaller than the preset temperature threshold value, determining that the NTC works normally, and exiting the NTC failure detection flow; if the difference value between the real-time detection temperature and the initial detection temperature at any time in the target time interval is smaller than the preset temperature threshold value, the kitchen range is controlled to continue to work and real-time temperature detection processing is carried out.
In one embodiment, the step of performing failure detection on the NTC according to a difference between the real-time detected temperature and the initial detected temperature further includes: when the working time of the kitchen range is longer than the target time interval; if the difference value between the real-time detection temperature and the initial detection temperature is not smaller than the preset temperature threshold value, determining that the NTC works normally, and exiting the NTC failure detection flow; if the difference between the real-time detection temperature and the initial detection temperature is smaller than a preset temperature threshold, determining that the NTC fails, and sending alarm information to the user side.
In one embodiment, a method comprises: when the difference between the first real-time detection temperature at any moment and the second real-time detection temperature at the last adjacent moment is larger than a preset mutation temperature threshold, determining the first real-time detection temperature and the second real-time detection temperature as mutation temperatures, and deleting the temperature record of the mutation temperatures.
In one embodiment, before the step of determining the initial detected temperature by temperature detection of the cooktop by the NTC temperature sensor, it comprises: carrying out state judgment processing on the working state of the kitchen range; if the kitchen range is detected to work for the first time, detecting the full temperature of the kitchen range through the NTC after the kitchen range is electrified, and determining the initial detection temperature of the first start; and if the kitchen range is detected to work for the first time, detecting the kitchen range at a low temperature section.
In one embodiment, the step of low temperature section detection of the cooktop comprises: when the cooker is at a low temperature Duan Dang position, temperature detection is carried out on the cooker in a preset low-temperature section range through NTC, and the initial detection temperature of the low-temperature section detection is determined.
In a second aspect, an embodiment of the present invention further provides a device for detecting NTC failure of a stove, where the device includes: the first temperature detection module is used for detecting the temperature of the kitchen range through the NTC temperature sensor when detecting that the kitchen range is started to work, and determining the initial detection temperature; the second temperature detection module is used for determining a target time interval and determining the real-time detection temperature of the kitchen range through the NTC in the target time interval; and the failure detection module is used for carrying out failure detection on the NTC according to the difference value between the real-time detection temperature and the initial detection temperature.
In a third aspect, embodiments of the present invention also provide an electronic device comprising a processor and a memory storing computer executable instructions executable by the processor, the processor executing the computer executable instructions to implement the method of any one of the first aspects.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions that, when invoked and executed by a processor, cause the processor to implement the method of any one of the first aspects.
The embodiment of the invention has the following beneficial effects:
According to the method, the device and the electronic equipment for detecting the NTC failure of the kitchen range, when the kitchen range is detected to be started, the temperature of the kitchen range is detected through the NTC temperature sensor, the initial detection temperature is determined, after the target time interval is determined, the real-time detection temperature of the kitchen range is determined through the NTC within the target time interval, and finally the NTC is subjected to failure detection according to the difference value between the real-time detection temperature and the initial detection temperature.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a method for detecting NTC failure of a kitchen range according to an embodiment of the present invention;
Fig. 2 is a specific flow diagram of a method for detecting NTC failure of a cooking appliance according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a stove NTC failure detection device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
At present, a stove is generally required to be provided with an over-temperature protection mechanism, so that over-temperature protection is carried out when the temperature exceeds a set temperature value, a driving circuit is closed, a fault signal is output, the prior art is used for carrying out over-temperature protection on the stove by arranging the NTC at the stove such as an electromagnetic stove and a gas stove, and failure detection is carried out on the NTC according to the temperature change condition detected by the NTC when the stove is used, but false detection of NTC failure possibly occurs in the scheme, the non-failed NTC is judged to be failed, and therefore, the accuracy of NTC failure detection is reduced.
Referring to a schematic flow chart of a method for detecting NTC failure of a kitchen range shown in fig. 1, the method mainly includes the following steps S102 to S106:
in step S102, when the start-up of the stove is detected, the temperature of the stove is detected by the NTC temperature sensor, and the initial detection temperature is determined, in one embodiment, in order to avoid false alarm caused by false detection of the NTC, an NTC failure determination needs to be performed once when the function is started each time, so that the failure of the NTC can be detected more accurately, and corresponding measures are taken in time, where the full temperature detection is required when the stove is started for the first time, and in order to avoid false determination of the NTC when the stove is started for the non-first time, the detection is performed only in the low temperature section, where the temperature in the low temperature section can be set to 25-55 ℃.
Step S104, determining a target time interval, and determining, by the NTC, a real-time detected temperature of the cookware within the target time interval, where in an embodiment, a temperature change condition of the cookware may be determined according to a power and a usage time of the cookware, so that the target time interval for NTC failure detection is related to a gear selected by the cookware, where the higher the power corresponding to the gear information is, the shorter the target time interval is, the lower the power corresponding to the gear information is, and the longer the target time interval is.
In step S106, failure detection is performed on the NTC according to the difference between the real-time detected temperature and the initial detected temperature, and in one embodiment, the NTC may fail thoroughly due to the too high temperature, or may jump at the temperature measurement point due to a hardware problem such as missing welding, so that whether the NTC fails can be determined through the real-time temperature change condition of the kitchen range detected by the NTC during use.
The NTC failure detection method of the kitchen range provided by the embodiment of the invention can obviously improve the accuracy of NTC failure detection, thereby improving the use safety of the kitchen range.
The embodiment of the invention also provides an implementation manner for performing failure detection on the stove NTC, which is shown in a specific flow diagram of a stove NTC failure detection method in FIG. 2, and is shown in the following (1) to (3):
(1) And carrying out state judgment processing on the working state of the kitchen range: if the kitchen range is detected to work for the first time, full temperature detection is carried out on the kitchen range through the NTC after the kitchen range is electrified, initial detection temperature for starting for the first time is determined, if the kitchen range is detected to work for the first time, low-temperature section detection is carried out on the kitchen range, temperature detection is carried out on the kitchen range in a preset low-temperature section range through the NTC when the kitchen range is at a low temperature Duan Dang position, initial detection temperature for detecting the low-temperature section is determined, in one implementation mode, adjacent temperature is required to be detected, whether mutation temperature occurs is determined, when the difference value between the first real-time detection temperature at any moment and the second real-time detection temperature at the last adjacent moment is larger than a preset mutation temperature threshold value, the first real-time detection temperature and the second real-time detection temperature are determined to be mutation temperatures, and temperature records of the mutation temperatures are deleted, at the moment, it can be determined that mutation occurs to the temperature measurement point due to hardware problems such as missing welding, failure judgment is required to be carried out on the NTC after mutation data are proposed, and the failure condition is sent to a user side.
(2) According to gear information when the kitchen range works, a target time interval is determined from a preset time interval set, and in the target time interval, real-time detection temperature of the kitchen range is determined through NTC, in practical application, the target time interval TP can be set according to power, when power corresponding to a gear when the kitchen range works is not less than 1800W, the target time interval can be set to 3 minutes, when power corresponding to the gear when the kitchen range works is less than 1800W and not less than 1500W, the target time interval can be set to 5 minutes, when power corresponding to the gear when the kitchen range works is less than 1500W and not less than 1000W, the target time interval can be set to 7 minutes, and when power corresponding to the gear when the kitchen range works is less than 1000W, the target time interval can be set to 10 minutes.
(3) After determining the initial detection temperature, according to the real-time temperature detection result, the steps of performing failure detection on the NTC specifically include the following (a) to (B):
(A) When the working time of the kitchen range is not more than the target time interval: if the difference value between the real-time detection temperature and the initial detection temperature at any moment in the target time interval is not smaller than the preset temperature threshold value, determining that the NTC works normally, and exiting the NTC failure detection flow, wherein at the moment, the detected temperature change of the kitchen range reaches the temperature change threshold value before the NTC reaches the set detection time; if the difference between the real-time detected temperature and the initial detected temperature at any time in the target time interval is smaller than the preset temperature threshold, the cooker is controlled to continue to work and perform real-time temperature detection processing, and the fact that at the time, the temperature change of the cooker detected by the NTC does not reach the temperature change threshold yet is indicated, and the cooker needs to be continuously heated and subjected to temperature detection and NTC failure detection.
(B) When the working time of the kitchen range is greater than the target time interval: if the difference value between the real-time detection temperature and the initial detection temperature is not smaller than the preset temperature threshold value, determining that the NTC works normally, exiting the NTC failure detection flow, and if the difference value between the real-time detection temperature and the initial detection temperature is smaller than the preset temperature threshold value, indicating that the NTC fails to detect the temperature change threshold value within the set time range, therefore, determining that the NTC fails, and sending alarm information to the user side so as to remind the user.
In conclusion, the method and the device can remarkably improve the accuracy of NTC failure detection, so that the use safety of the kitchen range is improved.
For the method for detecting the failure of the NTC of the kitchen range provided in the foregoing embodiment, the embodiment of the present invention provides a device for detecting the failure of the NTC of the kitchen range, referring to a schematic structural diagram of the device for detecting the failure of the NTC of the kitchen range shown in fig. 3, where the device includes the following parts:
the first temperature detection module 302 detects the temperature of the kitchen range through the NTC temperature sensor when detecting that the kitchen range is started to work, and determines the initial detection temperature;
the second temperature detection module 304 determines a target time interval, and determines the real-time detection temperature of the kitchen range through the NTC within the target time interval;
the failure detection module 306 performs failure detection on the NTC according to a difference between the real-time detected temperature and the initial detected temperature.
The NTC failure detection device for the kitchen range provided by the embodiment of the application can obviously improve the accuracy of NTC failure detection, thereby improving the use safety of the kitchen range.
In one embodiment, when the step of determining the target time interval is performed, the second temperature detection module 304 is further configured to: and determining a target time interval from a preset time interval set according to gear information when the cooker works, wherein the higher the power corresponding to the gear information is, the shorter the target time interval is, the lower the power corresponding to the gear information is, and the longer the target time interval is.
In one embodiment, when performing the step of performing failure detection on the NTC according to the difference between the real-time detected temperature and the initial detected temperature, the failure detection module 306 is further configured to: when the working time of the kitchen range is not more than the target time interval; if the difference value between the real-time detection temperature and the initial detection temperature at any moment in the target time interval is not smaller than the preset temperature threshold value, determining that the NTC works normally, and exiting the NTC failure detection flow; if the difference value between the real-time detection temperature and the initial detection temperature at any time in the target time interval is smaller than the preset temperature threshold value, the kitchen range is controlled to continue to work and real-time temperature detection processing is carried out.
In one embodiment, when performing the step of performing failure detection on the NTC according to the difference between the real-time detected temperature and the initial detected temperature, the failure detection module 306 is further configured to: when the working time of the kitchen range is longer than the target time interval; if the difference value between the real-time detection temperature and the initial detection temperature is not smaller than the preset temperature threshold value, determining that the NTC works normally, and exiting the NTC failure detection flow; if the difference between the real-time detection temperature and the initial detection temperature is smaller than a preset temperature threshold, determining that the NTC fails, and sending alarm information to the user side.
In one embodiment, the failure detection module 306 is further configured to: when the difference between the first real-time detection temperature at any moment and the second real-time detection temperature at the last adjacent moment is larger than a preset mutation temperature threshold, determining the first real-time detection temperature and the second real-time detection temperature as mutation temperatures, and deleting the temperature record of the mutation temperatures.
In one embodiment, before performing the step of detecting the temperature of the cooking appliance by the NTC temperature sensor and determining the initial detected temperature, the first temperature detection module 302 is further configured to: carrying out state judgment processing on the working state of the kitchen range; if the kitchen range is detected to work for the first time, detecting the full temperature of the kitchen range through the NTC after the kitchen range is electrified, and determining the initial detection temperature of the first start; and if the kitchen range is detected to work for the first time, detecting the kitchen range at a low temperature section.
In one embodiment, when the step of detecting the low temperature section of the kitchen range is performed, the first temperature detection module 302 is further configured to: when the cooker is at a low temperature Duan Dang position, temperature detection is carried out on the cooker in a preset low-temperature section range through NTC, and the initial detection temperature of the low-temperature section detection is determined.
The device provided by the embodiment of the present invention has the same implementation principle and technical effects as those of the foregoing method embodiment, and for the sake of brevity, reference may be made to the corresponding content in the foregoing method embodiment where the device embodiment is not mentioned.
The embodiment of the invention provides electronic equipment, which comprises a processor and a storage device; the storage means has stored thereon a computer program which, when executed by the processor, performs the method of any of the embodiments described above.
Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, where the electronic device 100 includes: a processor 40, a memory 41, a bus 42 and a communication interface 43, the processor 40, the communication interface 43 and the memory 41 being connected by the bus 42; the processor 40 is arranged to execute executable modules, such as computer programs, stored in the memory 41.
The memory 41 may include a high-speed random access memory (RAM, random Access Memory), and may further include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the system network element and the at least one other network element is achieved via at least one communication interface 43 (which may be wired or wireless), which may use the internet, a wide area network, a local network, a metropolitan area network, etc.
Bus 42 may be an ISA bus, a PCI bus, an EISA bus, or the like. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one bi-directional arrow is shown in FIG. 4, but not only one bus or type of bus.
The memory 41 is configured to store a program, and the processor 40 executes the program after receiving an execution instruction, and the method executed by the apparatus for flow defining disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 40 or implemented by the processor 40.
The processor 40 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuitry in hardware or instructions in software in processor 40. The processor 40 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal processor (DIGITAL SIGNAL Processing, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), off-the-shelf Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory 41 and the processor 40 reads the information in the memory 41 and in combination with its hardware performs the steps of the method described above.
The computer program product of the readable storage medium provided by the embodiment of the present invention includes a computer readable storage medium storing a program code, where the program code includes instructions for executing the method described in the foregoing method embodiment, and the specific implementation may refer to the foregoing method embodiment and will not be described herein.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, an electronic device, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A cooktop NTC failure detection method, characterized in that the method comprises:
When detecting that the cooker is started to work, detecting the temperature of the cooker through an NTC temperature sensor, and determining an initial detection temperature;
determining a target time interval, and determining the real-time detection temperature of the kitchen range through the NTC in the target time interval;
And performing failure detection on the NTC according to the difference value between the real-time detection temperature and the initial detection temperature.
2. The cooktop NTC failure detection method of claim 1, characterized in that the step of determining a target time interval comprises:
and determining the target time interval from a preset time interval set according to gear information when the kitchen range works, wherein the higher the power corresponding to the gear information is, the shorter the target time interval is, the lower the power corresponding to the gear information is, and the longer the target time interval is.
3. The NTC failure detection method of kitchen range according to claim 1, characterized in that the step of failure detecting the NTC according to the difference between the real-time detected temperature and the initial detected temperature comprises:
When the working time of the kitchen range is not more than the target time interval;
If the difference value between the real-time detection temperature and the initial detection temperature at any moment in the target time interval is not smaller than a preset temperature threshold value, determining that the NTC works normally, and exiting the NTC failure detection flow;
and if the difference value between the real-time detection temperature and the initial detection temperature at any time in the target time interval is smaller than a preset temperature threshold value, controlling the kitchen range to continue to work and performing real-time temperature detection processing.
4. The NTC failure detection method of kitchen range according to claim 1, characterized in that the step of failure detecting the NTC according to the difference between the real-time detected temperature and the initial detected temperature further comprises:
When the working time of the kitchen range is larger than the target time interval;
If the difference value between the real-time detection temperature and the initial detection temperature is not smaller than a preset temperature threshold value, determining that the NTC works normally, and exiting the NTC failure detection flow;
if the difference between the real-time detection temperature and the initial detection temperature is smaller than a preset temperature threshold, determining that the NTC is invalid, and sending alarm information to a user side.
5. The cooktop NTC failure detection method of claim 3 characterized in that the method comprises:
When the difference value between the first real-time detection temperature at any moment and the second real-time detection temperature at the last adjacent moment is larger than a preset mutation temperature threshold value, determining the first real-time detection temperature and the second real-time detection temperature as mutation temperatures, and deleting the temperature record of the mutation temperatures.
6. The NTC failure detection method of cooktop according to claim 1, characterized by comprising, before the step of determining an initial detection temperature by temperature detection of the cooktop by means of an NTC temperature sensor:
Carrying out state judgment processing on the working state of the kitchen range;
if the kitchen range is detected to work for the first time, detecting the full temperature of the kitchen range through the NTC after the kitchen range is electrified, and determining the initial detection temperature of the first start;
and if the kitchen range is detected to work for the first time, detecting the kitchen range at a low temperature section.
7. The NTC failure detection method of cooktop according to claim 6, characterized in that the step of low temperature segment detection of cooktop includes:
when the cooker is at a low temperature Duan Dang position, the temperature of the cooker is detected within a preset low-temperature range through the NTC, and the initial detection temperature of the low-temperature range detection is determined.
8. A cooktop NTC failure detection device, characterized in that it comprises:
the first temperature detection module is used for detecting the temperature of the kitchen range through the NTC temperature sensor when detecting that the kitchen range is started to work, and determining the initial detection temperature;
the second temperature detection module is used for determining a target time interval and determining the real-time detection temperature of the kitchen range through the NTC in the target time interval;
And the failure detection module is used for carrying out failure detection on the NTC according to the difference value between the real-time detection temperature and the initial detection temperature.
9. An electronic device comprising a processor and a memory, the memory storing computer-executable instructions executable by the processor, the processor executing the computer-executable instructions to implement the method of any one of claims 1 to 7.
10. A computer readable storage medium storing computer executable instructions which, when invoked and executed by a processor, cause the processor to implement the method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410227252.1A CN117990233A (en) | 2024-02-29 | 2024-02-29 | Kitchen range NTC failure detection method and device and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410227252.1A CN117990233A (en) | 2024-02-29 | 2024-02-29 | Kitchen range NTC failure detection method and device and electronic equipment |
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| CN117990233A true CN117990233A (en) | 2024-05-07 |
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|---|---|---|---|
| CN202410227252.1A Pending CN117990233A (en) | 2024-02-29 | 2024-02-29 | Kitchen range NTC failure detection method and device and electronic equipment |
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| CN (1) | CN117990233A (en) |
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- 2024-02-29 CN CN202410227252.1A patent/CN117990233A/en active Pending
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