CN117693077A

CN117693077A - Method for determining working state of heating wire, heating equipment and storage medium

Info

Publication number: CN117693077A
Application number: CN202211105227.3A
Authority: CN
Inventors: 李世强
Original assignee: Tineco Intelligent Technology Co Ltd
Current assignee: Tineco Intelligent Technology Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2024-03-12

Abstract

The embodiment of the application provides a heating wire working state determining method, heating equipment and a storage medium, and relates to the field of household appliances. Collecting a first temperature value of heating equipment in an initial operation state; determining a temperature state of the heating device according to the first temperature value; collecting a second temperature value of the heating equipment in the heating operation process; based on the temperature state of the heating equipment, collecting the temperature value of the heating equipment after the heating operation is finished for a preset time period; and determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time. The temperature delay of temperature conduction and the temperature value of the heating equipment in different operation states are fully considered, so that the outer wall and the inner part of the heating equipment have good correspondence, and the condition of false detection is avoided.

Description

Method for determining working state of heating wire, heating equipment and storage medium

Technical Field

The application relates to the field of household appliances, in particular to a method for determining the working state of a heating wire, heating equipment and a storage medium.

Background

Toaster is an electric heating cooker specially used for re-baking sliced bread, and is widely used by a plurality of families along with the continuous improvement of the living standard of people. In the prior art, bread is generally heated by an internal heating wire, and in order to ensure the normal use of the toaster, the temperature of the wall of the toaster is periodically detected to judge whether the working state of the heating wire is normal or not.

In the related art, a temperature sensor (such as an NTC temperature sensor) is generally disposed on the outer wall of the toaster to detect the temperature of the outer wall of the toaster, however, due to the delay of temperature conduction, the outer wall of the toaster has no good correspondence with the interior of the toaster, and is easily affected by the surrounding environment to generate a false detection, that is, the temperature condition inside the toaster cannot be accurately inferred by detecting the temperature of the outer wall of the toaster, so as to accurately determine whether the working state of the heating wire inside the toaster is normal.

Disclosure of Invention

Aspects of the application provide a method for determining the working state of a heating wire, a heating device and a storage medium, which fully consider the delay of temperature conduction and the temperature value of the heating device in different working states, so that the outer wall and the interior of the heating device have good correspondence, and the situation of false detection is avoided.

The embodiment of the application provides a heating wire working state determining method, which is applied to heating equipment, wherein a heating wire for heating an object is arranged in the heating equipment, and the method comprises the following steps: collecting a first temperature value of the heating equipment in an initial operation state; determining a temperature state of the heating device according to the first temperature value; collecting a second temperature value of the heating equipment in the heating operation process; based on the temperature state of the heating equipment, acquiring a temperature value of the heating equipment after a preset time period is ended in heating operation; and determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset time period.

In an alternative embodiment, said determining a temperature state of said heating device from said first temperature value comprises: if the first temperature value is larger than a first preset temperature value, determining that the heating equipment is in a heat engine state; or if the first temperature value is smaller than or equal to a first preset temperature value, determining that the heating equipment is in a cold state.

In an optional embodiment, the collecting, based on the temperature state of the heating device, a temperature value of the heating device after a preset period of time after the heating operation ends includes: if the heating equipment is in a heat engine state, collecting a third temperature value of the heating equipment after the heating operation is finished for a first preset time period; if the heating equipment is in a cold state, collecting a third temperature value of the heating equipment after the heating operation is finished for a first preset time period, and collecting a fourth temperature value of the heating equipment after the heating operation is finished for a second preset time period, wherein the second preset time period is longer than the first preset time period.

In an alternative embodiment, the heating device is in a cold state; the determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time comprises the following steps: and if the heating amplitude of the heating equipment meets the preset low heating condition according to the second temperature value and the fourth temperature value after the heating operation is finished for a second preset time period, determining that the heating wire is in a fault state.

In an optional embodiment, the determining that the heating amplitude of the heating device according to the second temperature value and the fourth temperature value meets a preset low heating condition includes: determining a first difference between the fourth temperature value and the second temperature value; and if the first difference value is smaller than a first preset value, determining that the heating amplitude of the heating equipment meets a preset low heating condition.

In an optional embodiment, the determining the working state of the heating wire according to the first temperature value, the second temperature value, and the temperature value after the heating operation ends for a preset period of time includes: and if the heating equipment is in a cold state or in a heat engine state, and after the heating operation is finished for a first preset time period, determining the working state of the heating wire according to the first temperature value, the second temperature value and the third temperature value.

In an optional embodiment, the determining the working state of the heating wire according to the first temperature value, the second temperature value and the third temperature value includes: and if the heating amplitude of the heating equipment is determined to meet the preset low heating condition according to the first temperature value, the second temperature value and the third temperature value, and the third temperature value is smaller than the second preset temperature value, determining that the heating wire is in a fault state.

In an optional embodiment, the determining that the heating amplitude of the heating device meets a preset low heating condition according to the first temperature value, the second temperature value and the third temperature value includes: if the first temperature value is equal to the second temperature value and the second difference value between the third temperature value and the second temperature value is smaller than a third preset temperature value, determining that the heating amplitude of the heating equipment meets a preset low heating condition.

In an optional embodiment, the determining the working state of the heating wire according to the first temperature value, the second temperature value and the third temperature value includes: determining whether the heating amplitude of the heating equipment meets a preset low heating condition according to the second temperature value and the third temperature value; if yes, determining whether the cooling amplitude of the heating equipment meets a preset high cooling condition according to the first temperature value and the second temperature value, determining whether the heating equipment meets a continuous cooling condition according to the second temperature value and the third temperature value, and determining whether the third temperature value is larger than a fourth preset temperature value; and if the preset high cooling condition is not met, or the continuous cooling condition is not met, or the third temperature value is smaller than or equal to the fourth preset temperature value, determining that the heating wire is in a fault state.

In an optional embodiment, the determining, according to the first temperature value and the second temperature value, whether the cooling range of the heating device meets a preset high cooling condition, and determining, according to the second temperature value and the third temperature value, whether the heating device meets a continuous cooling condition, includes: determining a third difference of the first temperature value and the second temperature value; if the third difference value is larger than a second preset value, determining that the cooling amplitude of the heating equipment meets a preset high cooling condition; determining a fourth difference between the third temperature value and the second temperature value; and if the fourth difference value is larger than a third preset value, determining that the heating equipment meets the continuous cooling condition.

The embodiment of the application provides a heating device, the heating device includes: a heating wire for heating an object and an apparatus body provided with one or more processors and one or more memories storing computer programs; the one or more processors configured to execute the computer program to: collecting a first temperature value of the heating equipment in an initial operation state; determining a temperature state of the heating device according to the first temperature value; collecting a second temperature value of the heating equipment in the heating operation process; based on the temperature state of the heating equipment, acquiring a temperature value of the heating equipment after a preset time period is ended in heating operation; and determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset time period.

Embodiments of the present application provide a computer-readable storage medium storing a computer program that, when executed by one or more processors, causes the one or more processors to at least: collecting a first temperature value of heating equipment in an initial operation state, wherein a heating wire for heating a target object is arranged in the heating equipment; determining a temperature state of the heating device according to the first temperature value; collecting a second temperature value of the heating equipment in the heating operation process; based on the temperature state of the heating equipment, acquiring a temperature value of the heating equipment after a preset time period is ended in heating operation; and determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset time period.

In the embodiment of the application, the first temperature value of the heating equipment in the initial operation state is acquired, the temperature state of the heating equipment is determined according to the first temperature value, the influence of the temperature state of the heating equipment on the state of the heating wire is considered, and the accuracy of the subsequent state determination of the heating wire is improved. The second temperature value of the heating equipment in the heating operation process is acquired, the temperature value of the heating equipment after the heating operation is finished for a preset time period is acquired based on the temperature state of the heating equipment, the working state of the heating wire is determined according to the first temperature value, the second temperature value and the temperature value of the heating equipment after the heating operation is finished for the preset time period, the delay of temperature conduction and the temperature values of the heating equipment in different operation states are fully considered, the outer wall and the inner wall of the heating equipment have good correspondence, and the condition of false detection is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a flowchart of a method for determining a working state of a heating wire according to an embodiment of the present application;

fig. 2 is a schematic diagram of a heating apparatus provided in an embodiment of the present application, in which the temperature is always increased in a preset period of time;

fig. 3 is a schematic diagram of a heating apparatus provided in an embodiment of the present application, in which the temperature is decreased first and then increased in a preset period of time;

FIG. 4 is a schematic diagram of a heating apparatus provided in an embodiment of the present application, wherein the heating apparatus is maintained after being reduced or the temperature is almost unchanged in a preset period of time;

fig. 5 is a schematic diagram of a temperature drop of a heating device provided in an embodiment of the present application in a preset time period;

fig. 6 is a schematic structural diagram of a temperature detection circuit according to an embodiment of the present disclosure;

fig. 7 is a specific example diagram of a method for determining a working state of a heating wire according to an embodiment of the present application.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Toaster is an electric heating cooker specially used for re-baking sliced bread, and is widely used by a plurality of families along with the continuous improvement of the living standard of people. In the prior art, bread is generally heated by an internal heating wire, and in order to ensure the normal use of the toaster, the temperature of the wall of the toaster is periodically detected to judge whether the working state of the heating wire is normal or not. Therefore, a temperature sensor is generally provided on the outer wall of the toaster to detect the temperature of the outer wall of the toaster. However, due to the delay of temperature conduction, the outer wall of the toaster does not have good correspondence with the interior of the toaster, and the condition of false detection is easily caused by the influence of the surrounding environment, namely, the temperature condition of the interior of the toaster cannot be accurately deduced by detecting the temperature of the outer wall of the toaster, so that whether the working state of the heating wire in the toaster is normal or not is accurately determined.

In view of this, the present application provides a method for determining an operating state of a heating wire, which is applied to a heating apparatus in which a heating wire for heating an object is disposed, as shown in fig. 1, and includes:

step 101, collecting a first temperature value of the heating equipment in an initial operation state.

Step 102, determining the temperature state of the heating device according to the first temperature value.

Step 103, collecting a second temperature value of the heating equipment in the heating operation process.

Step 104, based on the temperature state of the heating equipment, collecting the temperature value of the heating equipment after the heating operation is finished for a preset period of time.

Step 105, determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time.

It should be noted that, before determining the working state of the heating wire, the application will set up a temperature sensor on the outer wall of the heating device in advance. Taking the heating device as a toaster as an example, temperature sensors (such as NTC temperature sensors) can be respectively arranged on the outer walls of the two heating tanks of the toaster, and based on the temperature sensors, all the temperature values collected in the application refer to the temperature values of the outer walls of the heating device, and whether the working state of the heating wire is normal is deduced through the collected temperature values of the outer walls of the heating device.

In practical application, when detecting the heater strip of the heating device, the heating device may be in a cold state or a hot state, and after determining the specific temperature state, the heater strip is detected, so that the detection result can be ensured to be more accurate. Based on this, the present application first collects the first temperature value of the heating apparatus in the initial operation state, where the initial operation state refers to the current state of the heating apparatus when the temperature collection is performed, and may be a state in which the heating operation is not performed, a state in which the heating operation is being performed, a state in which the heating operation has just been performed, or a state after a period of time has elapsed.

After determining the first temperature value corresponding to the initial operation state, the temperature state of the heating equipment can be determined according to the first temperature value, and the specific determination method for determining the temperature state of the heating equipment is as follows: if the first temperature value is larger than a first preset temperature value, determining that the heating equipment is in a heat engine state; and if the first temperature value is smaller than or equal to the first preset temperature value, determining that the heating equipment is in a cold state. The first preset temperature value may be determined according to an actual environment, for example, assuming that the first preset temperature value is 40 ℃, at this time, if the first temperature value is greater than 40 ℃, the heating device is determined to be in a hot state, and if the first temperature value is less than or equal to 40 ℃, the heating device is determined to be in a cold state.

If the heating equipment is in the cold state, controlling the heating equipment to start heating work, and collecting a second temperature value of the heating equipment in the heating work process; and if the heating equipment is in the heat engine state, the heating equipment is indicated to be in heating operation, and a second temperature value of the heating equipment in the heating operation process is directly acquired. In this process, in order to more clearly understand the temperature change of the heating apparatus during the heating operation so as to subsequently determine whether the operation state of the heating wire is normal, the second temperature value may preferably be a minimum temperature value of the heating apparatus during the heating operation.

After the second temperature value of the heating equipment in the heating operation process is acquired, the temperature value of the heating equipment after the heating operation is finished for a preset time period can be acquired based on the temperature state of the heating equipment. Specifically, if the heating device is in a heat engine state, a third temperature value of the heating device after the heating operation is finished for a first preset time period is acquired. If the heating equipment is in a cold state, collecting a third temperature value of the heating equipment after the heating operation is finished for a first preset time period, and collecting a fourth temperature value of the heating equipment after the heating operation is finished for a second preset time period, wherein the second preset time period is longer than the first preset time period. It is understood that the temperature states of the heating equipment are different, so that different influences can be brought to the judgment of the working states of the follow-up heating wires, and therefore, the accuracy of the follow-up judgment of the working states of the heating wires can be effectively improved by collecting different temperature values according to different temperature states. The first preset duration and the second preset duration may be determined according to an actual working environment, for example, the first preset duration may be 40s, and the second preset duration may be 70s, which is not specifically limited herein, so long as the second preset duration is ensured to be longer than the first preset duration.

In practical application, taking the first preset time length as 40s and the second preset time length as 70s as an example. In this case, in the thermo-mechanical state, a third temperature value of the heating device after the heating operation is completed for 40s may be acquired. And in the cold state, collecting a third temperature value of the heating equipment after the heating operation is finished for 40s, and collecting a fourth temperature value of the heating equipment after the heating operation is finished for 70 s. It should be noted that the data of the heating apparatus within 40s of the end of the heating operation has no reference value because the detection time is too short, and is not considered here.

And finally, determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time, which are acquired in the process. It should be noted that, when the initial state of the heating device is a cold state and a hot state, the corresponding method for determining the working state of the heating wire is also different, and the following embodiment is specifically described below.

According to the method for determining the working state of the heating wire, the first temperature value of the heating equipment in the initial working state is collected, the temperature state of the heating equipment is determined according to the first temperature value, the influence of the temperature state of the heating equipment on the determination of the working state of the heating wire is considered, and the accuracy of the follow-up determination of the working state of the heating wire is improved. The second temperature value of the heating equipment in the heating operation process is acquired, the temperature value of the heating equipment after the heating operation is finished for a preset time period is acquired based on the temperature state of the heating equipment, the working state of the heating wire is determined according to the first temperature value, the second temperature value and the temperature value of the heating equipment after the heating operation is finished for the preset time period, the delay of temperature conduction and the temperature values of the heating equipment in different operation states are fully considered, the outer wall and the inner wall of the heating equipment have good correspondence, and the condition of false detection is avoided.

When the working state of the heating wire is determined according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time:

as a first implementation: when the heating equipment is in a cold state, determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time, wherein the method comprises the following steps: and if the heating amplitude of the heating equipment meets the preset low heating condition according to the second temperature value and the fourth temperature value after the heating operation is finished for a second preset time period, determining that the heating wire is in a fault state. It should be understood that when the heating device is in the cold state, the normal temperature should be increased obviously, and if the temperature increasing range of the heating device meets the preset low temperature increasing condition, the temperature increasing range is smaller and is not in accordance with the normal condition, so that the heating wire at the moment can be determined to be in a fault state (such as the heating wire is broken). By the method, the working state of the heating wire can be accurately judged when the initial working state of the heating equipment is in the cold state, and the accuracy is high.

Specifically, determining that the heating amplitude of the heating device satisfies a preset low heating condition according to the second temperature value and the fourth temperature value includes: determining a first difference between the fourth temperature value and the second temperature value; if the first difference value is smaller than a first preset value, the heating amplitude of the heating equipment is determined to meet the preset low heating condition. The first preset value may be determined according to practical experience, for example, it may be 2, 3, 4, 5, etc., and in the embodiment of the present application, the first difference value is preferably 2. If the first difference value is greater than or equal to a first preset value, the condition that the working state of the heating wire is normal is indicated, and the detection can be stopped.

As a second implementation: determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time, including: if the heating equipment is in a cold state or in a hot state, and after the heating operation is finished for a first preset period of time, the working state of the heating wire is determined according to the first temperature value, the second temperature value and the third temperature value. It should be noted that, in the cold state, if the preset period of time when the heating operation ends is greater than or equal to the first preset period of time and less than or equal to the second preset period of time, the judging method may be consistent with the judging method of the heat engine state. It should be understood that the temperature value after the heating operation is ended for a preset period of time is considered here, and even if the initial operation state of the heating apparatus is the cold state, it becomes the hot state after the heating operation is ended, and thus, the cold state and the hot state are comprehensively considered here.

In practical applications, for example, when the heating device is in a cold state, assuming that the first preset time period is 40s and the second preset time period is 70s, when the preset time period is greater than or equal to 40s and less than or equal to 70s after the heating operation is finished, the working state of the heating wire may be determined according to the first temperature value, the second temperature value and the third temperature value; also, when the heating apparatus is in the thermo-mechanical state, and the preset period of time is greater than or equal to 40s after the heating operation is ended, the working state of the heating wire may be determined according to the first temperature value, the second temperature value, and the third temperature value.

In an alternative embodiment, determining the operating state of the heating wire according to the first temperature value, the second temperature value and the third temperature value comprises: if the heating amplitude of the heating equipment is determined to meet the preset low heating condition according to the first temperature value, the second temperature value and the third temperature value, and the third temperature value is smaller than the second preset temperature value, determining that the heating wire is in a fault state. Wherein the second preset temperature value may be empirically determined, in the embodiment of the present application, the second preset temperature value is preferably 50 ℃.

It should be noted that, when the heating apparatus is in the thermo-mechanical state, the temperature change of the heating apparatus is relatively complex, and a distinction judgment is required, specifically:

fig. 2 is a schematic diagram of a heating device with a temperature rising all the time in a preset time period, and fig. 3 is a schematic diagram of a heating device with a temperature falling first and then rising in a preset time period. The situation shown in fig. 2 and fig. 3 is a normal phenomenon in a general situation, but there is an exception, taking the heating device as a toaster as an example, if the heating device is in the situation shown in fig. 2 and fig. 3, the heating amplitude of the heating device satisfies the preset low heating condition, and the third temperature value is smaller than the second preset temperature value, which indicates that the heating wire in one heating tank of the toaster is normal, the heating wire in the other heating tank is broken, and the heating amplitude satisfies the preset low heating condition, and the third temperature value is smaller than the second preset temperature value, which corresponds to the temperature value collected by the outer wall of the heating tank where the heating wire is broken. Specifically, for example, when the temperature of the outer wall of the heating tank on one side of the toaster is detected, it is obtained that: the temperature rise of the heating tank is not more than 3 ℃ in a preset time period, and the highest temperature only reaches about 50 ℃, which indicates that the heating wire in the heating tank is broken.

When determining whether the heating-up range of the heating device meets the preset low heating-up condition, the method can be used for judging: if the first temperature value is equal to the second temperature value and the second difference value between the third temperature value and the second temperature value is smaller than a third preset temperature value, determining that the heating amplitude of the heating equipment meets a preset low heating condition.

Fig. 4 is a schematic diagram of the heating apparatus which is reduced and then maintained or the temperature is almost unchanged in a preset period of time, which generally occurs after the heating apparatus performs a plurality of heating operations, and if the temperature of the heating apparatus is above 60 ℃ in this case, it is illustrated that the heating wire is in a normal state. Otherwise, the subsequent judgment needs to be continued.

Fig. 5 is a schematic diagram showing that the temperature of the heating device drops in a single direction within a preset period of time, the temperature in the heating device is reduced greatly when the temperature in the heating device is high, but the temperature of the outer wall of the heating device is still higher, so that the temperature drops sharply and the fracture condition is consistent during the heating process, but the temperature is higher, and the temperature is generally above 85 ℃ (it should be noted that in fig. 2-5, the time is shown on the abscissa and the temperature is shown on the ordinate). In this case, determining the operating state of the heating wire according to the first temperature value, the second temperature value, and the third temperature value includes:

Determining whether the heating amplitude of the heating equipment meets a preset low heating condition according to the second temperature value and the third temperature value; if yes, determining whether the cooling amplitude of the heating equipment meets a preset high cooling condition according to the first temperature value and the second temperature value, determining whether the heating equipment meets a continuous cooling condition according to the second temperature value and the third temperature value, and determining whether the third temperature value is larger than a fourth preset temperature value; if the preset high cooling condition is not met, or the continuous cooling condition is not met, or the third temperature value is smaller than or equal to the fourth preset temperature value, determining that the heating wire is in a fault state. The fourth preset temperature value may be determined according to an actual working environment, and in this embodiment of the present application, the fourth preset temperature value is preferably 85 ℃.

In practical application, a third difference value between the first temperature value and the second temperature value can be determined first, and if the third difference value is greater than a second preset value, it is determined that the cooling amplitude of the heating device meets a preset high cooling condition. The second preset value may be determined according to an actual working environment, for example, may be 2, 3, 4, 5, and in the embodiment of the present application, the second preset value is preferably 3. And then, determining a fourth difference value between the third temperature value and the second temperature value, and if the fourth difference value is larger than a third preset value, determining that the heating equipment meets the continuous cooling condition. The third preset value may be determined according to an actual working environment, for example, it may be-2, -3, -4, -5, or the like, and in the embodiment of the present application, the third preset value is preferably-2.

Specifically, as an implementation manner, when the third difference between the first temperature value and the second temperature value is greater than 3 and the fourth difference between the third temperature value and the second temperature value is greater than-2 and the third temperature value is greater than 85 ℃, the heating wire is determined to be in a normal state. Conversely, when the third difference between the first temperature value and the second temperature value is less than or equal to 3, or the fourth difference between the third temperature value and the second temperature value is less than or equal to-2, or the third temperature value is less than or equal to 85 ℃, the heating wire is determined to be in a fault state.

In this embodiment of the present application, the above-mentioned collection of each temperature value may be implemented by a temperature detection circuit in a temperature sensor, as shown in fig. 6, where the temperature detection circuit includes: the connection relationship between the negative temperature coefficient thermistor NTC1, the first capacitor C1, the second capacitor C2, the first resistor R1, the second resistor R2, the diode D, the terminal JP6, and the like is described in detail with reference to fig. 6.

Fig. 7 is a specific embodiment of a method for determining a working state of a heating wire according to an embodiment of the present application, as shown in fig. 7, the method includes:

and acquiring a first temperature value T1 of the heating equipment in an initial operation state, and determining that the heating equipment is in a cold state if the first temperature value T1 is smaller than or equal to a first preset temperature value (assumed to be 40 ℃). At this time, the heating device is controlled to start a heating operation, and a second temperature value T2 of the heating device during the heating operation is acquired. After the second temperature value T2 is determined, a fourth temperature value T4 of the heating device after the heating operation is finished for a second preset time period (assumed to be 70 s) is collected, if a first difference value between the fourth temperature value T4 and the second temperature value T2 is smaller than a first preset value (assumed to be 2), the heating wire is determined to be in a fault state, and if a first difference value between the fourth temperature value T4 and the second temperature value T2 is greater than or equal to 2, the heating wire is determined to be in a normal state.

If the first temperature value T1 is greater than the first preset temperature value 40 ℃, the heating equipment is determined to be in a heat engine state. A second temperature value T2 of the heating device during the heating operation is acquired. After determining the second temperature value T2, a third temperature value T3 of the heating device after the heating operation ends for a first preset period of time (assumed to be 40 s) is acquired. The data detection time of the heating device within 40s after the heating operation is finished is short, and the heating device has no reference value and can be ignored. And when the heating device is in the cold state, if the time after the heating operation of the heating device is finished is greater than or equal to 40s and less than or equal to 70s, the third temperature value T3 of the heating device after the heating operation is finished for a first preset time period (supposedly 40 s) can be collected.

After the third temperature value T3 is obtained, determining a fourth difference value between the third temperature value T3 and the second temperature value T2, if the fourth difference value is greater than a third preset value (assumed to be 2), determining that the heating wire is normal, and if the fourth difference value is less than or equal to the third preset value, indicating that the temperature of the heating device rises, and that the rising amplitude is smaller, and continuing to determine:

if the first temperature value T1 is greater than or equal to the second temperature value T2, and the third temperature value T3 is greater than the second temperature value T2, it indicates that the temperature of the heating device is in a state of decreasing first and then increasing second, and the heating wire may be in a normal state or a fault state at this time, and the determination needs to be continued:

If the first temperature value T1 is equal to the second temperature value T2, and the second difference between the third temperature value T3 and the second temperature value T2 is smaller than a third preset temperature value (assumed to be 2), it is determined that the heating amplitude of the heating device meets the preset low heating condition, and if the third temperature value T3 is smaller than 50 ℃, it is determined that the heating wire fails. Conversely, if the first temperature value T1 is not equal to the second temperature value T2, or the second difference between the third temperature value T3 and the second temperature value T2 is greater than or equal to a third preset temperature value, or the third temperature value T3 is greater than or equal to 50 ℃, determining that the heating wire is normal.

If the first temperature value T1 is smaller than the second temperature value T2, or the third temperature value T3 is smaller than or equal to the second temperature value T2, it is indicated that the temperature of the heating device may be reduced, and then the determination needs to be continued:

if the first temperature value T1 is greater than or equal to the second temperature value T2, the third temperature value T3 is equal to the second temperature value T2, and the third temperature value T3 is greater than 60 ℃, it is indicated that the temperature of the heating device is reduced and then maintained or almost unchanged in the preset time period, and at this time, it can be determined that the heating wire is normal. Conversely, if the first temperature value T1 is smaller than the second temperature value T2, or the third temperature value T3 is not equal to the second temperature value T2, and the third temperature value T3 is smaller than or equal to 60 ℃, continuing to determine:

If the third difference value between the first temperature value T1 and the second temperature value T3 is larger than the second preset value (3 is assumed), determining that the cooling amplitude of the heating equipment meets the preset high cooling condition; if the fourth difference between the third temperature value T3 and the second temperature value T2 is greater than the third preset value (assumed to be-2), it is determined that the heating device meets the continuous cooling condition, and at this time, if the third temperature value T3 is greater than the fourth preset temperature value (assumed to be 85 ℃), it is indicated that the temperature in the heating device has been reduced greatly when the heating device is at a high temperature, but there is a higher temperature on the outer wall of the heating device, and the heating wire is in a normal state. Conversely, if the third difference between the first temperature value T1 and the second temperature value T3 is smaller than or equal to the second preset value, or the fourth difference between the third temperature value T3 and the second temperature value T2 is smaller than or equal to the third preset value, or the third temperature value T3 is smaller than or equal to the fourth preset temperature value, determining that the heating wire is in a fault state.

The following examples of scenarios are provided to illustrate the present application:

application scenario example 1:

assume that the first preset duration is 40s and the second preset duration is 70s. A second temperature value T2 of the heating device during the heating operation of the heating device is acquired.

The heating device temperature state corresponding to the first temperature value in the initial operation state is a cold state, and the time of the heating device after the heating operation is finished exceeds 70s. At this time, a fourth temperature value T4 of the heating apparatus after the heating operation is finished for 70s is acquired. If the first difference between the fourth temperature value T4 and the second temperature value T2 is smaller than the first preset value (assumed to be 2), determining that the heating wire is in a fault state, and if the first difference between the fourth temperature value T4 and the second temperature value T2 is larger than or equal to 2, determining that the heating wire is in a normal state.

Application scenario example 2:

assume that the first preset duration is 40s and the second preset duration is 70s. A first temperature value T1 of the heating device in an initial operation state and a second temperature value T2 of the heating device during a heating operation are collected. The temperature state of the heating equipment corresponding to the first temperature value in the initial operation state is a cold state, and the time of the heating equipment after the heating operation is finished is between 40s and 70s.

A third temperature value T3 of the heating device after the heating operation is finished for 40s is acquired. The data detection time of the heating device within 40s after the heating operation is finished is short, and the heating device has no reference value and can be ignored. And when the heating device is in the cold state, if the time after the heating operation of the heating device is finished is greater than or equal to 40s and less than or equal to 70s, the third temperature value T3 of the heating device after the heating operation is finished for the first preset time period of 40s can be collected.

Application scenario example 3:

assume that the first preset duration is 40s and the second preset duration is 70s. A first temperature value T1 of the heating device in an initial operation state and a second temperature value T2 of the heating device during a heating operation are collected. The heating device temperature state corresponding to the first temperature value in the initial operation state is a heat engine state, and the time of the heating device after the heating operation is finished is more than or equal to 40s.

A third temperature value T3 of the heating device after the heating operation is finished for 40s is acquired. The data detection time of the heating device within 40s after the heating operation is finished is short, and the heating device has no reference value and can be ignored. And when the heating device is in the cold state, if the time after the heating operation of the heating device is finished is greater than or equal to 40s and less than or equal to 70s, the third temperature value T3 of the heating device after the heating operation is finished for 40s can be collected.

In summary, according to the embodiment of the application, the first temperature value of the heating device in the initial operation state is collected, and the temperature state of the heating device is determined according to the first temperature value, so that the influence of the temperature state of the heating device on the determination of the state of the heating wire is considered, and the accuracy of the subsequent determination of the working state of the heating wire is improved. The second temperature value of the heating equipment in the heating operation process is acquired, the temperature value of the heating equipment after the heating operation is finished for a preset time period is acquired based on the temperature state of the heating equipment, the working state of the heating wire is determined according to the first temperature value, the second temperature value and the temperature value of the heating equipment after the heating operation is finished for the preset time period, the delay of temperature conduction and the temperature values of the heating equipment in different operation states are fully considered, the outer wall and the inner wall of the heating equipment have good correspondence, and the condition of false detection is avoided. In addition, it should be noted that, by collecting the temperature value of the heating device in the initial operation state, the minimum value in the heating operation process and the temperature value of 40s or 70s after the operation is finished, the temperature change condition of the heating device in the heating operation process can be accurately mastered, and the accuracy of the subsequent determination of the working state of the heating wire is ensured.

Accordingly, embodiments of the present application also provide a heating apparatus, including: a heating wire for heating an object and an apparatus body provided with one or more processors and one or more memories storing computer programs;

one or more processors configured to execute a computer program to: collecting a first temperature value of heating equipment in an initial operation state; determining a temperature state of the heating device according to the first temperature value; collecting a second temperature value of the heating equipment in the heating operation process; based on the temperature state of the heating equipment, collecting the temperature value of the heating equipment after the heating operation is finished for a preset time period; and determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time.

Accordingly, embodiments of the present application also provide a computer-readable storage medium storing a computer program that, when executed by one or more processors, causes the one or more processors to at least: collecting a first temperature value of heating equipment in an initial operation state, wherein a heating wire for heating a target object is arranged in the heating equipment; determining a temperature state of the heating device according to the first temperature value; collecting a second temperature value of the heating equipment in the heating operation process; based on the temperature state of the heating equipment, collecting the temperature value of the heating equipment after the heating operation is finished for a preset time period; and determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time.

The memory is mainly used for storing computer programs, and the computer programs can be executed by the processor, so that the processor controls the self-mobile device to realize corresponding functions and complete corresponding actions or tasks. In addition to storing computer programs, the memory may also be configured to store various other data to support operations on the self-mobile device. Examples of such data include instructions for any application or method operating on the self-mobile device.

The memory may be implemented by any type of volatile or nonvolatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. In the embodiment of the present application, the implementation form of the processor is not limited, and may be, for example, but not limited to, a CPU, GPU, MCU, or the like.

In an embodiment of the present application, when a processor executes a computer program in a memory, it is used to: collecting a first temperature value of heating equipment in an initial operation state; determining a temperature state of the heating device according to the first temperature value; collecting a second temperature value of the heating equipment in the heating operation process; based on the temperature state of the heating equipment, collecting the temperature value of the heating equipment after the heating operation is finished for a preset time period; and determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time.

In an alternative embodiment, the processor, when determining the temperature state of the heating device from the first temperature value, is configured to: if the first temperature value is larger than a first preset temperature value, determining that the heating equipment is in a heat engine state; or if the first temperature value is smaller than or equal to the first preset temperature value, determining that the heating equipment is in a cold state.

In an alternative embodiment, the processor collects a temperature value of the heating device after the heating operation ends for a preset period of time based on a temperature state of the heating device, including: if the heating equipment is in a heat engine state, collecting a third temperature value of the heating equipment after the heating operation is finished for a first preset time period; if the heating equipment is in a cold state, collecting a third temperature value of the heating equipment after the heating operation is finished for a first preset time period, and collecting a fourth temperature value of the heating equipment after the heating operation is finished for a second preset time period, wherein the second preset time period is longer than the first preset time period.

In an alternative embodiment, the heating device is in a cold state; the processor determines the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time, and the processor comprises the following steps: and if the heating amplitude of the heating equipment meets the preset low heating condition according to the second temperature value and the fourth temperature value after the heating operation is finished for a second preset time period, determining that the heating wire is in a fault state.

In an alternative embodiment, the processor determines that the heating amplitude of the heating device meets a preset low heating condition according to the second temperature value and the fourth temperature value, including: determining a first difference between the fourth temperature value and the second temperature value; if the first difference value is smaller than a first preset value, the heating amplitude of the heating equipment is determined to meet the preset low heating condition.

In an alternative embodiment, the processor determines the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation ends for a preset period of time, including: if the heating equipment is in a cold state or in a hot state, and after the heating operation is finished for a first preset period of time, the working state of the heating wire is determined according to the first temperature value, the second temperature value and the third temperature value.

In an alternative embodiment, the processor determines the operating state of the heating wire according to the first temperature value, the second temperature value and the third temperature value, including: if the heating amplitude of the heating equipment is determined to meet the preset low heating condition according to the first temperature value, the second temperature value and the third temperature value, and the third temperature value is smaller than the second preset temperature value, determining that the heating wire is in a fault state.

In an alternative embodiment, the processor determines that the heating amplitude of the heating device meets a preset low heating condition according to the first temperature value, the second temperature value and the third temperature value, including: if the first temperature value is equal to the second temperature value and the second difference value between the third temperature value and the second temperature value is smaller than a third preset temperature value, determining that the heating amplitude of the heating equipment meets a preset low heating condition.

In an alternative embodiment, the processor determines the operating state of the heating wire according to the first temperature value, the second temperature value and the third temperature value, including: determining whether the heating amplitude of the heating equipment meets a preset low heating condition according to the second temperature value and the third temperature value; if yes, determining whether the cooling amplitude of the heating equipment meets a preset high cooling condition according to the first temperature value and the second temperature value, determining whether the heating equipment meets a continuous cooling condition according to the second temperature value and the third temperature value, and determining whether the third temperature value is larger than a fourth preset temperature value; if the preset high cooling condition is not met, or the continuous cooling condition is not met, or the third temperature value is smaller than or equal to the fourth preset temperature value, determining that the heating wire is in a fault state.

In an alternative embodiment, the processor determines whether the temperature reduction range of the heating device meets a preset high temperature reduction condition according to the first temperature value and the second temperature value, and determines whether the heating device meets a continuous temperature reduction condition according to the second temperature value and the third temperature value, including: determining a third difference of the first temperature value and the second temperature value; if the third difference value is larger than the second preset value, determining that the cooling amplitude of the heating equipment meets the preset high cooling condition; determining a fourth difference between the third temperature value and the second temperature value; and if the fourth difference value is larger than the third preset value, determining that the heating equipment meets the continuous cooling condition.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. A method for determining the working state of a heating wire, which is applied to a heating device, wherein the heating device is internally provided with the heating wire for heating an object, and the method comprises the following steps:

collecting a first temperature value of the heating equipment in an initial operation state;

Determining a temperature state of the heating device according to the first temperature value;

collecting a second temperature value of the heating equipment in the heating operation process;

based on the temperature state of the heating equipment, acquiring a temperature value of the heating equipment after a preset time period is ended in heating operation;

and determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset time period.

2. The method of claim 1, wherein said determining a temperature state of the heating device from the first temperature value comprises:

if the first temperature value is larger than a first preset temperature value, determining that the heating equipment is in a heat engine state; or,

and if the first temperature value is smaller than or equal to a first preset temperature value, determining that the heating equipment is in a cold state.

3. The method according to claim 2, wherein the acquiring a temperature value of the heating apparatus after a preset period of time after the heating operation ends based on the temperature state of the heating apparatus includes:

if the heating equipment is in a heat engine state, collecting a third temperature value of the heating equipment after the heating operation is finished for a first preset time period;

If the heating equipment is in a cold state, collecting a third temperature value of the heating equipment after the heating operation is finished for a first preset time period, and collecting a fourth temperature value of the heating equipment after the heating operation is finished for a second preset time period, wherein the second preset time period is longer than the first preset time period.

4. A method according to claim 3, wherein the heating device is in a cold state; the determining the working state of the heating wire according to the first temperature value, the second temperature value and the temperature value after the heating operation is finished for a preset period of time comprises the following steps:

and if the heating amplitude of the heating equipment meets the preset low heating condition according to the second temperature value and the fourth temperature value after the heating operation is finished for a second preset time period, determining that the heating wire is in a fault state.

5. The method of claim 4, wherein the determining that the heating apparatus has a heating amplitude that satisfies a preset low heating condition based on the second temperature value and the fourth temperature value comprises:

determining a first difference between the fourth temperature value and the second temperature value;

And if the first difference value is smaller than a first preset value, determining that the heating amplitude of the heating equipment meets a preset low heating condition.

6. A method according to claim 3, wherein determining the operating state of the heating wire according to the first temperature value, the second temperature value, and the temperature value after the heating operation is completed for a preset period of time comprises:

and if the heating equipment is in a cold state or in a heat engine state, and after the heating operation is finished for a first preset time period, determining the working state of the heating wire according to the first temperature value, the second temperature value and the third temperature value.

7. The method of claim 6, wherein said determining the operating state of the heater wire based on the first temperature value, the second temperature value, and the third temperature value comprises:

and if the heating amplitude of the heating equipment is determined to meet the preset low heating condition according to the first temperature value, the second temperature value and the third temperature value, and the third temperature value is smaller than the second preset temperature value, determining that the heating wire is in a fault state.

8. The method of claim 7, wherein the determining that the heating apparatus temperature increase magnitude satisfies a preset low temperature increase condition from the first temperature value, the second temperature value, and the third temperature value comprises:

if the first temperature value is equal to the second temperature value and the second difference value between the third temperature value and the second temperature value is smaller than a third preset temperature value, determining that the heating amplitude of the heating equipment meets a preset low heating condition.

9. The method of claim 6, wherein said determining the operating state of the heater wire based on the first temperature value, the second temperature value, and the third temperature value comprises:

determining whether the heating amplitude of the heating equipment meets a preset low heating condition according to the second temperature value and the third temperature value;

if yes, determining whether the cooling amplitude of the heating equipment meets a preset high cooling condition according to the first temperature value and the second temperature value, determining whether the heating equipment meets a continuous cooling condition according to the second temperature value and the third temperature value, and determining whether the third temperature value is larger than a fourth preset temperature value;

And if the preset high cooling condition is not met, or the continuous cooling condition is not met, or the third temperature value is smaller than or equal to the fourth preset temperature value, determining that the heating wire is in a fault state.

10. The method of claim 9, wherein determining whether the cooling magnitude of the heating device satisfies a preset high cooling condition based on the first temperature value and the second temperature value, and determining whether the heating device satisfies a continuous cooling condition based on the second temperature value and the third temperature value, comprises:

determining a third difference of the first temperature value and the second temperature value; if the third difference value is larger than a second preset value, determining that the cooling amplitude of the heating equipment meets a preset high cooling condition;

determining a fourth difference between the third temperature value and the second temperature value; and if the fourth difference value is larger than a third preset value, determining that the heating equipment meets the continuous cooling condition.

11. A heating apparatus, comprising: a heating wire for heating an object and an apparatus body provided with one or more processors and one or more memories storing computer programs;

The one or more processors configured to execute the computer program for performing the method of any of claims 1-10.

12. A computer readable storage medium storing a computer program, characterized in that the one or more processors are adapted to perform the method of any one of claims 1-10 when the computer program is executed by the one or more processors.