Method and apparatus for preventing dry heating of heater on basis of non-contact sensing, and electronic device

Abstract

The present invention relates to the technical field of household electric appliances. Provided are a method and apparatus for preventing dry heating of a heater on the basis of non-contact sensing, and an electronic device. The method comprises: acquiring, by means of a non-contact temperature sensor, a startup ambient temperature of a heater and an operating ambient temperature of a heated object; on the basis of the operating ambient temperature, predicting whether the heated object is in a dry heating state; when it is predicted, on the basis of the operating ambient temperature, that the heated object has been in a dry heating state, determining, on the basis of the startup ambient temperature and the operating ambient temperature, whether the heated object is in a dry heating state; and when it is determined, on the basis of the startup ambient temperature and the operating ambient temperature, that the heated object has been in a dry heating state, controlling the heater to immediately stop operating. In the present invention, by means of using a non-contact infrared temperature measurement technique, there is no need to be in direct contact with a liquid, thereby avoiding the problem of liquid contamination caused by contact sensors, and also reducing maintenance costs.

Description

Heater dry-burning prevention method and device based on non-contact sensing and electronic equipment TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a heater dry-burning prevention method and device based on non-contact sensing and electronic equipment. BACKGROUND

[0002] In the existing heating appliance design, in order to ensure the safety and convenience of user use, usually equipped with a variety of protection devices. These devices mainly include the contact temperature sensor installed in the vessel, the mechanical temperature sensor installed on the bottom heating module, and the capacitive liquid level sensor for detecting the safe height of the liquid in the vessel. However, these traditional design schemes have exposed a series of problems in actual application.

[0003] Firstly, the working principle of the contact temperature sensor requires it to directly contact the liquid to accurately measure the temperature. However, this design not only limits the material selection of the vessel, but also in the use process, due to the direct contact between the sensor part and the liquid, the heat conduction and chemical reaction that may occur during heating may contaminate the liquid, thereby affecting the quality and safety of the liquid.

[0004] Secondly, although the mechanical temperature sensor can trigger the safety mechanism when overheating to protect the equipment from damage, once triggered, it usually needs to be manually reset by a professional, which brings great inconvenience to the user. At the same time, the mechanical design also makes it sensitive to changes in environmental temperature and humidity, which may cause false triggering or failure.

[0005] Finally, although the capacitive liquid level sensor can detect the liquid level in the vessel, its working performance is affected by many factors. For example, metal containers or thick ceramic containers may interfere with the electric field distribution of the sensor, resulting in inaccurate measurement. In addition, residual liquid attached to the container wall may also affect the sensor's judgment, causing false positives or false negatives.

[0006] Therefore, a heater dry-burning prevention method and device based on non-contact sensing and electronic equipment are proposed. SUMMARY

[0007] The present specification provides a heater dry-burning prevention method and device based on non-contact sensing, which adopts non-contact infrared temperature measurement technology, does not need to be in direct contact with the liquid, avoids the problem of liquid contamination caused by contact type sensor, and also reduces the maintenance cost.

[0008] The present specification provides a heater dry-burning prevention method based on non-contact sensing, comprising:

[0009] acquiring a start-up ambient temperature of the heater and a working ambient temperature of the heated object by the non-contact temperature sensor;

[0010] predicting whether the heated object is in a dry burning state based on the working ambient temperature;

[0011] when it is predicted that the heated object is in the dry burning state based on the working ambient temperature, determining whether the heated object is in the dry burning state based on the start-up ambient temperature and the working ambient temperature;

[0012] when it is determined that the heated object is in the dry burning state based on the start-up ambient temperature and the working ambient temperature, controlling the heater to stop working immediately.

[0013] Optionally, the acquiring of the start-up ambient temperature of the heater and the working ambient temperature of the heated object by the non-contact temperature sensor comprises:

[0014] the non-contact temperature sensor is arranged on a side wall of the heater and can be aligned with a heating area of the heater so as to acquire the start-up ambient temperature of the heater and the working ambient temperature of the heated object.

[0015] Optionally, the predicting of whether the heated object is in the dry burning state based on the working ambient temperature comprises:

[0016] wherein Pata2 is the working ambient temperature, and a is a first constant, a ∈ [50, 60].

[0017] Optionally, the determining of whether the heated object is in the dry burning state based on the start-up ambient temperature and the working ambient temperature comprises:

[0018] wherein Pata1 is the start-up ambient temperature, Vobj is a real-time target temperature, and b is a second constant, b ∈ [-1, 10].

[0019] Optionally, the method further comprises:

[0020] the first constant and the second constant are inversely proportional to the thickness of the heated object.

[0021] Optionally, the method further comprises:

[0022] when the heated object is placed on the heater, determining whether the working ambient temperature is less than the start-up ambient temperature;

[0023] When the working environment temperature is less than the start-up environment temperature, the heater is automatically triggered to start-up heating.

[0024] Optionally, further comprising:

[0025] When the heated object is suddenly removed from the heater, it is determined whether the change in the working environment temperature meets a temperature rise slope and / or a temperature threshold value.

[0026] When the change in the working environment temperature does not meet the temperature rise slope and / or the temperature threshold value, the heater is immediately stopped.

[0027] The present specification provides a non-contact sensor-based heater dry burning prevention device, comprising:

[0028] An acquisition module is configured to acquire, by the non-contact temperature sensor, a start-up environment temperature of the heater and a working environment temperature of the heated object.

[0029] A pre-judgment module is configured to predict, based on the working environment temperature, whether the heated object is in a dry burning state.

[0030] A determination module is configured to, when it is predicted based on the working environment temperature that the heated object is in a dry burning state, determine, based on the start-up environment temperature and the working environment temperature, whether the heated object is in a dry burning state.

[0031] A control module is configured to, when it is determined based on the start-up environment temperature and the working environment temperature that the heated object is in a dry burning state, control the heater to be immediately stopped.

[0032] Optionally, the acquisition module comprises:

[0033] The non-contact temperature sensor is arranged on a side wall of the heater and can be aligned with a heating area of the heater, so as to acquire the start-up environment temperature of the heater and the working environment temperature of the heated object.

[0034] Optionally, the pre-judgment module comprises: Pata2>a

[0035] Wherein, Pata2 is the working environment temperature, a is a first constant, and a∈[50, 60].

[0036] Optionally, the determination module comprises: (Pata2-Pata1)-(Vobj-Pata2)>b

[0037] Wherein, Pata1 is the start-up environment temperature, Vobj is a real-time target temperature, b is a second constant, and b∈[-1, 10].

[0038] Optionally, further comprising:

[0039] The size of the first constant and the size of the second constant are inversely proportional to the thickness of the heated object.

[0040] Optionally, further comprising:

[0041] When the heated object is placed on the heater, it is determined whether the working environment temperature is less than the startup environment temperature;

[0042] When the working environment temperature is less than the startup environment temperature, the heater is controlled to automatically trigger the startup heating start.

[0043] Optionally, further comprising:

[0044] When the heated object is suddenly removed from the heater, it is determined whether the change of the working environment temperature satisfies the temperature rise slope and / or the temperature threshold;

[0045] When the change of the working environment temperature does not satisfy the temperature rise slope and / or the temperature threshold, the heater is controlled to immediately stop working.

[0046] The specification also provides an electronic device, wherein the electronic device comprises:

[0047] a processor; and,

[0048] a memory storing computer executable instructions that, when executed, cause the processor to perform any of the above methods.

[0049] The specification also provides a computer readable storage medium, wherein the computer readable storage medium stores one or more programs that, when executed by a processor, implement any of the above methods.

[0050] In the present application, non-contact infrared temperature measurement technology is adopted, which does not need to be in direct contact with the liquid, avoiding the problem of liquid pollution caused by contact type sensors, and reducing the maintenance cost. At the same time, it can monitor the temperature change of the liquid in the container in real time, and when it detects that the liquid is insufficient or dry burning, it can quickly respond and automatically stop heating, effectively preventing the occurrence of dry burning phenomenon and improving the safety of use. It can also detect in real time whether the container has been removed, and when the container is removed, it can immediately stop heating to avoid safety accidents caused by user negligence and improve the intelligent level of the product. Compared with traditional mechanical temperature sensors, non-contact infrared temperature measurement sensors have automatic reset function and do not need to be manually operated by professional personnel, improving the ease of use and user experience of the product. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative effort.

[0052] Fig. 1 is a schematic diagram of a non-contact sensor-based heater dry burning prevention method according to an embodiment of the present application;

[0053] Fig. 2 is a schematic diagram of the position relationship among a heater, a non-contact temperature sensor and a heated object according to an embodiment of the present application;

[0054] Fig. 3 is a schematic diagram of a non-contact sensor-based heater dry burning prevention device according to an embodiment of the present application;

[0055] Fig. 4 is a schematic diagram of an electronic device according to an embodiment of the present application;

[0056] Fig. 5 is a schematic diagram of a computer readable medium according to an embodiment of the present application. DETAILED DESCRIPTION

[0057] The following description is provided to enable those skilled in the art to carry out the application. The preferred embodiments in the following description are only examples to illustrate the application. Other obvious modifications can be made by those skilled in the art. The basic principles defined in the following description can be applied to other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0058] The exemplary embodiments of the present application will be described more fully hereinafter with reference to the accompanying drawings. The exemplary embodiments can, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept to those skilled in the art. Like reference numerals refer to like elements throughout the specification. Repetitive descriptions of like elements will be omitted for sake of brevity.

[0059] In the embodiments described above, the features, structures, characteristics or other details can be combined in any suitable manner in one or more other embodiments without departing from the technical concept of the present application.

[0060] In the description of specific embodiments, the features, structures, characteristics or other details described are to provide a sufficient understanding of embodiments for one of ordinary skill in the art. However, one of ordinary skill in the art can practice the technical solutions of the present application without one or more of the specific features, structures, characteristics or other details.

[0061] The flowchart shown in the drawings is only an exemplary illustration, and does not necessarily include all contents and operations / steps, nor does it necessarily have to be executed in the order described. For example, some operations / steps can be further decomposed, and some operations / steps can be combined or partially combined, so the actual execution order can be changed according to the actual situation.

[0062] The block diagram shown in the drawings is only a functional entity, and does not necessarily correspond to a physically independent entity. That is, the functional entities can be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0063] The term "and / or" or "and / or" includes all combinations of any one or more of the associated listed items.

[0064] Figure 1 is a schematic diagram of a non-contact temperature sensing-based heater dry burning prevention method provided by an embodiment of the present specification, which can include:

[0065] S110: obtaining the startup ambient temperature of the heater and the working ambient temperature of the heated object by the non-contact temperature sensor;

[0066] Optionally, the S110 includes:

[0067] The non-contact temperature sensor is arranged on the side wall of the heater and can be aligned with the heating area of the heater, so as to obtain the startup ambient temperature of the heater and the working ambient temperature of the heated object.

[0068] In the specific embodiments of the present specification, as shown in Figure 2, unlike traditional contact temperature sensors (such as thermocouples, thermal resistors, etc.), the non-contact temperature sensor (such as an infrared temperature sensor) determines the temperature of an object by measuring the infrared radiation emitted by the object. The non-contact temperature sensor is installed on the side of the heater, rather than on the top, bottom or other positions, and such an installation position allows the sensor to measure the temperature of the heating area or the surrounding area of the heater without affecting the normal operation of the heater. Since the non-contact temperature sensor relies on the infrared radiation emitted by the object to measure the temperature, it needs to ensure that it can receive the infrared radiation from the heating area, so that the sensor can accurately obtain the temperature information of the area.

[0069] S120: predicting whether the heated object is in a dry heating state based on the working environment temperature;

[0070] Optionally, the S120 comprises: Pata2>a

[0071] wherein Pata2 is the working environment temperature, and a is the first constant, a∈[50, 60].

[0072] In the specific embodiments of the present specification, the heater starts to work and heats the heated object. The non-contact temperature sensor measures the working environment temperature Pata2, and compares the value of Pata2 with the constant a. If Pata2>a, it is predicted that the heated object may be in a dry heating state.

[0073] S130: when it is predicted that the heated object is in a dry heating state based on the working environment temperature, determining whether the heated object is in a dry heating state based on the startup environment temperature and the working environment temperature;

[0074] Optionally, the S130 comprises: (Pata2-Pata1)-(Vobj-Pata2)>b

[0075] wherein Pata1 is the startup environment temperature, Vobj is the real-time target temperature, and b is the second constant, b∈[-1, 10].

[0076] In the specific embodiments of the present specification, (Pata2-Pata1) reflects the change amount of the working environment temperature from the startup to now. (Vobj-Pata2) reflects the gap between the current working environment temperature and the real-time target temperature. The difference (Pata2-Pata1)-(Vobj-Pata2) can be regarded as a comprehensive index, which considers both the temperature change rate (which may reflect the heating rate) and the gap between the current temperature and the target temperature (which may reflect the heating efficiency or the presence of liquid).

[0077] Optionally, it further comprises:

[0078] The size of the first constant and the size of the second constant are inversely proportional to the thickness of the heated object.

[0079] In the specific embodiments of the present specification, the temperature change and the speed of reaching the real-time target temperature of the heated object with different thicknesses will be different under the same heating condition. Thinner objects are usually easier to heat quickly, while thicker objects need more time to reach the same temperature.

[0080] S140: when the heated object is determined to be in the dry burning state based on the start-up environment temperature and the working environment temperature, the heater is immediately stopped.

[0081] In the detailed description of the present specification, once the system determines that the heated object is in the dry burning state, a safety measure is taken immediately, a signal is sent to the control module of the heater to directly turn off the power supply of the heater to stop heating.

[0082] Optionally, it further comprises:

[0083] When the heated object is placed on the heater, it is determined whether the working environment temperature is less than the start-up environment temperature.

[0084] When the working environment temperature is less than the start-up environment temperature, the heater is automatically triggered to start-up heating.

[0085] In the detailed description of the present specification, when the heated object is added with water, the heated object is conducted by the pipe water temperature, and the temperature of the heated object will be lower than the original temperature. When the heated object is placed on the heater again, the non-contact temperature sensor senses the temperature decrease of the heated object, thereby automatically triggering the start-up heating.

[0086] Optionally, it further comprises:

[0087] When the heated object is suddenly removed from the heater, it is determined whether the change of the working environment temperature meets the temperature rise slope and / or temperature threshold.

[0088] When the change of the working environment temperature does not meet the temperature rise slope and / or temperature threshold, the heater is immediately stopped.

[0089] In the detailed description of the present specification, during the heating process of the heated object on the heater, the heated object is suddenly removed, the non-contact temperature sensor measures the temperature of the heating area of the heater due to the removal of the heated object, and at this time the temperature will instantaneously increase.

[0090] The outer side wall of the heater can also be provided with a human-computer interaction interface, which provides intuitive and easy-to-understand menus and options, enabling users to easily set and adjust various parameters of the heater, such as temperature, heating time, heating mode, etc. The current state of the heater can be displayed on the interface in real time, such as current temperature, remaining heating time, whether in heating state, etc. This real-time feedback enables users to understand the operation of the heater at any time, ensuring safe use. If the heater malfunctions or encounters abnormal conditions, the human-computer interaction interface can display corresponding error codes or prompt information to help users quickly identify the problem and take appropriate action. In addition, some advanced interfaces also support remote fault diagnosis and repair functions. Through the human-computer interaction interface, users can make personalized settings according to their preferences and needs, such as setting a timer to turn on and off, energy-saving mode, temperature memory, etc. These functions not only improve the convenience of use, but also meet the special needs of different user groups.

[0091] In the present application, non-contact infrared temperature measurement technology is used, which does not require direct contact with the liquid, avoiding liquid contamination caused by contact sensors, and reducing maintenance costs. At the same time, it can monitor the temperature changes of the liquid in the container in real time, and when it detects insufficient liquid or dry burning, it can quickly respond and automatically stop heating, effectively preventing dry burning and improving safety. It can also detect in real time whether the container has been removed, and immediately stop heating when the container is removed, avoiding accidents caused by user negligence and improving the intelligence level of the product. Compared with traditional mechanical temperature sensors, non-contact infrared temperature sensors have automatic reset function, without the need for professional manual operation, improving the ease of use and user experience of the product.

[0092] Figure 3 is a schematic diagram of a non-contact sensor-based heater dry burning prevention device provided by an embodiment of the present specification, which can include:

[0093] The acquisition module 10 is used to acquire the startup environment temperature of the heater and the working environment temperature of the heated object through the non-contact temperature sensor;

[0094] The prediction module 20 is used to predict whether the heated object is in a dry burning state based on the working environment temperature;

[0095] The determination module 30 is used to determine whether the heated object is in a dry burning state based on the startup environment temperature and the working environment temperature when it is predicted that the heated object is in a dry burning state based on the working environment temperature;

[0096] The control module 40 is used to control the heater to stop working immediately when it is determined that the heated object is in a dry burning state based on the startup environment temperature and the working environment temperature.

[0097] Optionally, the acquisition module 10 comprises:

[0098] The non-contact temperature sensor is arranged on the sidewall of the heater and can be aligned with the heating area of the heater, so as to acquire the startup ambient temperature of the heater and the working ambient temperature of the heated object.

[0099] Optionally, the pre-judgment module 20 comprises: Pata2>a

[0100] Wherein, Pata2 is the working ambient temperature, a is the first constant, and a∈[50, 60].

[0101] Optionally, the judgment module 30 comprises: (Pata2-Pata1)-(Vobj-Pata2)>b

[0102] Wherein, Pata1 is the startup ambient temperature, Vobj is the real-time target temperature, b is the second constant, and b∈[-1, 10].

[0103] Optionally, the method further comprises:

[0104] The first constant and the second constant are inversely proportional to the thickness of the heated object.

[0105] Optionally, the method further comprises:

[0106] When the heated object is placed on the heater, it is judged whether the working ambient temperature is less than the startup ambient temperature.

[0107] When the working ambient temperature is less than the startup ambient temperature, the heater is controlled to automatically trigger the startup heating.

[0108] Optionally, the method further comprises:

[0109] When the heated object is suddenly removed from the heater, it is judged whether the change of the working ambient temperature meets the temperature rise slope and / or the temperature threshold.

[0110] When the change of the working ambient temperature does not meet the temperature rise slope and / or the temperature threshold, the heater is controlled to stop working immediately.

[0111] The functions of the device of the embodiment of the application have been described in the above-mentioned method embodiment, so the description of the present embodiment will not be described in detail, and the relevant description in the foregoing embodiments can be referred to, which will not be described here.

[0112] Based on the same inventive concept, the present specification embodiment also provides an electronic device.

[0113] The electronic device embodiments of the present application are described below, which can be regarded as specific physical implementations of the above-mentioned method and device embodiments of the present application. For the details described in the electronic device embodiments of the present application, it should be regarded as a supplement to the above-mentioned method or device embodiments; for the details not disclosed in the electronic device embodiments of the present application, it can be implemented with reference to the above-mentioned method or device embodiments.

[0114] FIG. 4 is a structural schematic diagram of an electronic device according to an embodiment of the present application. The electronic device 300 according to the embodiment of the present application is described below with reference to FIG. 4. The electronic device 300 shown in FIG. 4 is only an example and should not bring any limitation to the functions and use range of the embodiment of the present application.

[0115] As shown in FIG. 4, the electronic device 300 is in the form of a general computing device. The components of the electronic device 300 can include, but are not limited to, at least one processing unit 310, at least one storage unit 320, a bus 330 connecting different system components including the storage unit 320 and the processing unit 310, a display unit 340, etc.

[0116] The storage unit stores program codes which can be executed by the processing unit 310, so that the processing unit 310 performs the steps according to various exemplary embodiments of the present application described in the above processing method part of the present specification. For example, the processing unit 310 can perform the steps as shown in FIG. 1.

[0117] The storage unit 320 can include a readable medium in the form of a volatile storage unit, such as a random access memory (RAM) 3201 and / or a cache memory unit 3202, and can further include a read-only memory (ROM) 3203.

[0118] The storage unit 320 can further include program / utilities 3204 having a set of (at least one) program modules 3205, such as an operating system, one or more application programs, other program modules, and program data, each of which or some combination of which can include implementation of a network environment.

[0119] The bus 330 can be one or more of several types of bus structures, including a storage unit bus or storage unit controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of a variety of bus structures.

[0120] The electronic device 300 can also communicate with one or more external devices 400 such as a keyboard, a pointing device, a Bluetooth device, etc.; and can communicate with one or more devices that enable a user to interact with the electronic device 300 and / or one or more devices (e.g., routers, modems, etc.) that enable the electronic device 300 to communicate with one or more other computing devices. Such communication can occur via an input / output (I / O) interface 350. Still yet, the electronic device 300 can communicate with one or more networks, such as a local area network (LAN), a wide area network (WAN), and / or the Internet through a network adapter 360. The network adapter 360 can communicate with the other modules of the electronic device 300 through the bus 330. As will be appreciated, while not shown, other hardware and / or software modules could be used in conjunction with the electronic device 300. Such modules can include, but are not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc.

[0121] Through the above description of the embodiments, those skilled in the art can easily understand that the exemplary embodiments described in the present application can be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solutions according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a computer readable storage medium (which can be a CD-ROM, a U disk, a mobile hard disk, etc.) or a network, and includes a number of instructions to enable a computing device (which can be a personal computer, a server, or a network device, etc.) to perform the above-mentioned method according to the present application. When the computer program is executed by a data processing device, the computer readable medium enables the above-mentioned method of the present application, i.e., the method shown in Fig. 1.

[0122] Fig. 5 is a schematic diagram of a computer readable medium provided by an embodiment of the present specification.

[0123] The computer program for implementing the method shown in Fig. 1 can be stored on one or more computer readable media. The computer readable medium can be a readable signal medium or a readable storage medium. The readable storage medium may, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0124] The computer readable storage medium can include a data signal transported over a carrier wave and can be baseband or propagated along with carriers. The program code embodied on the computer readable storage medium can be transmitted using any apparatus adapted to transmit any sort of signal with information, including without limitation wireless, wired, optical fibers, RF, etc. or any suitable combination thereof.

[0125] The program code can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++, etc., and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the audience computing device, partly on the audience computing device, as a stand-alone software package, partly on the audience computing device and partly on a remote computing device or entirely on the remote computing device or server. In the latter scenario, the remote computing device can be connected to the audience computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computing device, such as through the Internet using an Internet Service Provider.

[0126] In light of the above, the present application can be implemented in hardware, or as software modules running on one or more processors, or as a combination of both. Those skilled in the art will appreciate that the various components in the embodiments of the present application can be implemented using a general purpose computer or a special purpose computer, such as a microprocessor or a Digital Signal Processor (DSP), etc. to implement some or all of the functions according to some or all of the components in the embodiments of the present application. The present application can also be implemented as a program of instructions for implementing some or all of the methods described herein, either directly or indirectly, on a device or an apparatus (e.g., a computer program and a computer program product). Such a program implementing the present application can be stored on a computer readable medium or can be in the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or in any other form.

[0127] The above-described specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application, and it should be understood that the present application is not inherently related to any specific computer, virtual device or electronic equipment, and various general-purpose devices can also implement the present application. The above-described is only a specific embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0128] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments.

[0129] The above-described is only an embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dry-out prevention method for a heater based on non-contact sensing, comprising a heater, a non-contact temperature sensor, a heated object, characterized by, The method comprises: acquiring the start-up ambient temperature of the heater and the working ambient temperature of the heated object by the non-contact temperature sensor; predicting whether the heated object is in a dry burning state based on the working ambient temperature; when it is predicted that the heated object is in a dry burning state based on the working ambient temperature, determining whether the heated object is in a dry burning state based on the start-up ambient temperature and the working ambient temperature; when it is determined that the heated object is in a dry burning state based on the start-up ambient temperature and the working ambient temperature, controlling the heater to stop working immediately.

2. The non-contact sensing based dry-fire prevention method for a heater as claimed in claim 1, wherein, The method of acquiring the start-up ambient temperature of the heater and the working ambient temperature of the heated object by the non-contact temperature sensor comprises: The non-contact temperature sensor is arranged on the side wall of the heater and can be aligned with the heating area of the heater, so as to acquire the start-up ambient temperature of the heater and the working ambient temperature of the heated object.

3. The non-contact sensing based dry-fire prevention method for a heater as claimed in claim 2, wherein, The method of predicting whether the heated object is in a dry burning state based on the working ambient temperature comprises: Pata2>a Wherein, Pata2 is the working ambient temperature, a is the first constant, and a∈[50, 60].

4. The non-contact sensing-based dry-fire prevention method for a heater according to claim 3, wherein The method of determining whether the heated object is in a dry burning state based on the start-up ambient temperature and the working ambient temperature comprises: (Pata2-Pata1)-(Vobj-Pata2)>b Wherein, Pata1 is the start-up ambient temperature, Vobj is the real-time target temperature, b is the second constant, and b∈[-1, 10].

5. The non-contact sensing based dry-fire prevention method for a heater as claimed in claim 4, wherein, The method further comprises: The size of the first constant and the size of the second constant are inversely proportional to the thickness of the heated object.

6. The non-contact sensing based dry-fire prevention method for a heater as claimed in claim 5, wherein, The method further comprises: When the heated object is placed on the heater, it is determined whether the working ambient temperature is less than the start-up ambient temperature; When the working ambient temperature is less than the start-up ambient temperature, the heater is controlled to automatically trigger the start-up heating start.

7. The non-contact sensing based dry-fire prevention method for a heater as claimed in claim 5, wherein, The method further comprises: When the heated object is suddenly removed from the heater, it is determined whether the change of the working ambient temperature meets the temperature rise slope and / or the temperature threshold; When the change of the working ambient temperature does not meet the temperature rise slope and / or the temperature threshold, the heater is controlled to stop working immediately.

8. A non-contact sensor-based dry-out prevention device for a heater, comprising a heater, a non-contact temperature sensor, an object to be heated, characterized by, The method comprises: an acquisition module for acquiring the start-up ambient temperature of the heater and the working ambient temperature of the heated object by the non-contact temperature sensor; a prediction module for predicting whether the heated object is in a dry burning state based on the working ambient temperature; a determination module for determining whether the heated object is in a dry burning state based on the start-up ambient temperature and the working ambient temperature when it is predicted that the heated object is in a dry burning state based on the working ambient temperature; a control module for controlling the heater to stop working immediately when it is determined that the heated object is in a dry burning state based on the start-up ambient temperature and the working ambient temperature.

9. An electronic device, comprising: The electronic device comprises: a processor; and a memory storing computer-executable instructions that, when executed, cause the processor to perform the method of any of claims 1-7.

10. A computer readable storage medium, wherein, The computer-readable storage medium stores one or more programs that, when executed by a processor, implement the method of any of claims 1-7.

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