WO2020024540A1

WO2020024540A1 - Electric heater failure alerting method and apparatus, computer device and storage medium

Info

Publication number: WO2020024540A1
Application number: PCT/CN2018/123010
Authority: WO
Inventors: 高立新; 韦嘉; 巨姗; 施芬芬
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-07-31
Filing date: 2018-12-24
Publication date: 2020-02-06
Also published as: CN108980985A; CN108980985B

Abstract

An electric heater failure alerting method, an electric heater failure alerting apparatus, a computer device, and a computer-readable storage medium. The method comprises: acquiring first temperature data monitored by a top temperature sensing package (10) of the electric heater and second temperature data monitored by an environmental temperature sensing package (20); determining a state of a temperature limiter of the electric heater according to the first temperature data and the second temperature data; and when the temperature limiter is in a switch-off state, performing a failure alert operation such that a user is notified of the switch-off state of the temperature limiter and that the electric heater has stopped working, improving the user experience.

Description

Electric heater failure alarm method and device, computer equipment and storage medium

Related applications

This application claims the priority of a Chinese patent application filed on July 31, 2018 with the application number 201810855517.7 and entitled "Electric heater failure alarm method, device, computer equipment and storage medium", which is hereby incorporated by reference in its entirety as reference.

Technical field

The present application relates to the field of household appliances, and in particular, to a method, a device, a computer device, and a storage medium for alarming a heater failure.

Background technique

At present, electric heaters have been widely used, especially in areas without heating supplies. In cold and humid winters, the use of electric heaters is more common.

As a heating device, electric heaters must be temperature-controlled to ensure their safety. Normally, a temperature limiter is used for temperature control protection, but at present, when the temperature limiter is disconnected, the load does not work and the display panel shows normal, so that the user cannot know whether the temperature limiter is in the disconnected state.

Summary of the invention

Based on this, it is necessary to provide a method, an apparatus, a computer device, and a storage medium for an electric heater failure alarm that enable a user to know the state of the temperature limiter in response to the above technical problems.

An electric heater failure alarm method, the method includes:

Acquiring first temperature data monitored by a top temperature sensing bag of the electric heater, and second temperature data monitored by an environmental temperature sensing bag;

Determining a state of a temperature limiter of the electric heater according to the first temperature data and the second temperature data;

When the state of the temperature limiter is an off state, a fault alarm operation is performed.

In one embodiment, determining the state of the temperature limiter of the electric heater according to the first temperature data and the second temperature data includes:

Determining whether the change trend of the first temperature data within the first preset time period satisfies the preset change trend;

If the change trend of the first temperature data satisfies the preset change trend, obtaining first temperature data and second temperature data at an end time of the first preset time period;

The state of the temperature limiter of the electric heater is determined according to the first temperature data at the end time and the second temperature data at the end time.

In one of the embodiments, the determining whether the change trend of the first temperature data within the first preset time period satisfies the preset change trend includes:

Judging whether the first temperature data has a rising change within the first preset time period;

If the first temperature data does not increase during the first preset time period, it is determined that a change trend of the first temperature data meets the preset change trend.

In one of the embodiments, the determining whether the first temperature data changes during the first preset time period includes:

It is determined whether a change amount of the first temperature data is a positive value within a second preset time period.

In one of the embodiments, the method further includes:

If the first temperature data has a rising change within the first preset time period, obtaining a rising time point when the first temperature data rises;

Determining whether the first temperature data in the third preset time period after the rising time point gradually increases;

If it does not gradually increase, return to and execute the step of determining that the change trend of the first temperature data satisfies the preset change trend.

In one embodiment, determining the state of the temperature limiter of the electric heater according to the first temperature data at the end time and the second temperature data at the end time includes:

Acquiring a difference between the first temperature data at the end time and the second temperature data at the end time;

The state of the temperature limiter of the electric heater is determined according to the difference.

In one embodiment, the determining the state of the temperature limiter of the electric heater according to the difference value includes:

Judging the magnitude of the difference and a preset threshold;

If the difference is greater than or equal to the preset threshold, determining that the state of the temperature limiter is a closed state;

If the difference is less than the preset threshold, it is determined that the state of the temperature limiter is an off state.

An electric heater failure alarm device, the device includes:

A temperature data acquisition module, configured to acquire first temperature data monitored by the top temperature sensing bag of the electric heater, and second temperature data monitored by the environmental temperature sensing bag;

A status determining module, configured to determine a status of a temperature limiter of the electric heater according to the first temperature data and the second temperature data;

An alarm module is configured to perform a fault alarm operation when the temperature limiter is in an off state.

A computer device includes a memory and a processor. The memory stores a computer program that can run on the processor, and the processor implements the following steps when the computer program executes:

A computer-readable storage medium stores a computer program thereon, and when the computer program is executed by a processor, the following steps are implemented:

The above-mentioned electric heater failure alarm method, device, computer equipment and storage medium can accurately determine the temperature limiter of the electric heater through the first temperature data obtained by the top temperature sensing package and the second temperature data obtained by the environmental temperature sensing package. Whether it is in the disconnected state. When the state is disconnected, a fault alarm is performed, so that the user knows that the temperature limiter is in the disconnected state, and the electric heater has stopped working, improving the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application or the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely It is an embodiment of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the disclosed drawings without paying creative labor.

FIG. 1 is an application environment diagram of an electric heater failure alarm method according to an embodiment of the present application; FIG.

2 is a schematic flowchart of an electric heater failure alarm method according to an embodiment of the present application;

3 is a schematic flowchart of a detailed step of step 202 in an embodiment of the present application;

4 is a schematic flowchart of a detailed step of step 301 in an embodiment of the present application;

5 is a structural block diagram of an electric heater failure alarm device according to an embodiment of the present application;

FIG. 6 is an internal structure diagram of a computer device in an embodiment of the present application.

detailed description

In order to make the purpose, technical solution, and advantages of the present application clearer, the following further describes the present application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application, and are not used to limit the application.

The electric heater fault alarm method provided in the embodiment of the present application can be applied to the application environment shown in FIG. 1. The electric heater includes a top temperature-sensing bag 10 and an environmental temperature-sensing bag 20, and the top temperature-sensing bag 10 and the environmental temperature-sensing bag 20 are connected to the computer device 30 through a wire or wirelessly.

Optionally, the computer device 30 includes at least a processor 31 and a memory 32. The memory 32 stores a fault judgment algorithm. The memory 32 receives and stores the first temperature data uploaded by the top temperature sensing pack 10 and the second temperature data uploaded by the environmental temperature sensing pack 20. The processor 21 calls and runs the fault judgment algorithm in the memory 22, and performs calculation processing on the input first temperature data and the second temperature data.

Optionally, the computer device 30 may be an integrated circuit board, which is integrated on the electric heater. Alternatively, the computer device 30 and the electric heater are separate devices.

Optionally, the electric heater further includes an alarm device 40, which is connected to the computer device 30. After the computer device 30 determines that there is a fault, an alarm instruction is sent to the alarm device 40, and the alarm device 40 performs an alarm according to the alarm instruction .

Please refer to FIG. 2. In one embodiment, a fault alarm method for an electric heater is provided. The method is applied to FIG. 1 as an example for description, and includes the following steps:

Step 201: Obtain first temperature data monitored by a temperature sensing package on the top of the electric heater, and second temperature data monitored by an environmental temperature sensing package;

Among them, the electric heater usually includes a top temperature sensing bag and an environmental temperature sensing bag. The top temperature-sensing bag may be used to obtain temperature data of the electric heater itself. After the first temperature-sensing bag obtains the first temperature data, it sends the first temperature data to the computer device 30. The environmental temperature-sensing package may be used to obtain the second temperature data. After the environmental temperature-sensing package obtains the second temperature data, it sends the second temperature data to the computer device 30. The computer device 30 monitors the received first temperature data and second temperature data in real time.

Step 202: Determine a state of a temperature limiter of the electric heater according to the first temperature data and the second temperature data.

Among them, the state of the temperature limiter includes an open state and a closed state. Among them, the heater will stop working when the temperature limiter is off, and the heater will work normally when the temperature limiter is closed.

In step 203, when the state of the temperature limiter is an off state, a fault alarm operation is performed.

In the electric heater fault alarm method, the first temperature data obtained by the top temperature sensing package and the second temperature data obtained by the environmental temperature sensing package can accurately determine whether the temperature limiter of the electric heater is in an off state, When it is in the on state, a fault alarm is performed, so that the user knows that the temperature limiter is in the disconnected state, and the electric heater has stopped working, improving the user experience.

Referring to FIG. 3, as an optional implementation manner, the detailed step of step 202 may include:

Step 301: Determine whether a change trend of the first temperature data within a first preset time period satisfies a preset change trend;

Among them, in a specific application scenario, the first temperature data changes with time. By summing up the first temperature data and time, a first temperature data curve with temperature changing over time can be obtained. Therefore, through the trend of the first temperature data curve, the computer device 30 can determine whether the change trend of the first temperature data satisfies a preset change trend.

The preset change trend includes: the first temperature data decreases first and then gradually decreases in the first preset time period, the first temperature data decreases continuously in the first preset time period, and the first temperature data falls in the first preset time period Within the first preset time period, the first temperature data is first gradual, then descents and then gradual, etc. In addition, the preset change trend does not include a change trend in which the first temperature data rises during the first preset time period.

The first preset time period is a limit value obtained according to multiple experiments in several scenarios. The several scenes include different heating powers, different seasons, different weather, and whether the room is ventilated. In the above several scenarios, each scenario will get a time period after testing. The specific process of determining the first preset time period is as follows: in different environments, two different heating powers are mainly used for heating. The first is that in multiple environments, the high-end power is first heated until the first temperature data is stable. Then stop heating, when the first temperature data drops to a preset temperature value (preset temperature value = current ambient temperature + T ° C), start the lowest power heating, then when heating from the lowest power, the first temperature data It will first drop to the lowest point and then rise. After testing, under various environments, the time periods from the time when the lowest power heating starts to the time when the first temperature data drops to the lowest point and rises by 1 ° C are S1 and S2. ..Sn. The second is that the electric heater is heated from the cold state to the above-mentioned preset temperature value (preset temperature value = current ambient temperature + T ° C). After testing, under various environments, the electric heater starts from cold The time periods during which the state starts low-power heating to the above-mentioned preset temperature values are s1, s2, ... sn, respectively. Analysis and statistics are performed on the heating time periods S1, S2, ..., Sn, and s1, s2, ..., sn of two different heating powers in the above various environments, and a first preset time period can be obtained. The first preset time period is greater than S1, S2 ... Sn, and s1, s2 ... sn.

Among them, if the temperature limiter is closed, the time is counted from the time of heating at the lowest power. No matter what the environment is, under normal use of the electric heater, the first temperature data will increase within the first preset time period. .

Step 302: if the change trend of the first temperature data meets the preset change trend, obtain first temperature data and second temperature data at an end time of the first preset time period;

The end time of the first preset time period is exemplified. For example, the first preset time period is 20 minutes. If the first temperature data changes in the time period from 1 minute to 20 minutes, When the preset change trend is satisfied, the first temperature data of the top temperature-sensing bag and the second temperature data of the environmental temperature-sensing bag at the 20th minute (the end time of the first preset time period) are obtained.

Among them, when the temperature limiter is turned off, the electric heater cannot generate heat. There are usually two changes in the first temperature data. One is that the first temperature data continues to decline within the first preset time period, and the speed of decline Faster. The other is that the first temperature data decreases first and then remains stable within the first preset time period. The changes in the above two types of first temperature data are related to weather, indoor ventilation conditions, and other factors. Among them, when the temperature limiter is turned off, because the electric heater cannot generate heat, under normal circumstances, the change trend of the first temperature data will meet the preset change trend (the first temperature data is not within the first preset time period). Will change). However, it is not only that the temperature limiter is turned off that the change trend of the first temperature data satisfies a preset change trend (the first temperature data does not have an upward change in the first preset time period). For example, first the high-end power is heated until the first temperature data is stable, then the heating is stopped, and the first temperature data is lowered to a preset temperature value according to the control of the electric heater (preset temperature value = current ambient temperature + T ° C) When heating, the heater will control heating at the lowest power. When heating from the lowest power, the first temperature data will first drop to the lowest point and then rise. Among them, from the heating to the first temperature data is stable, and then the heating is stopped until the first temperature data drops to the lowest point, the duration of the entire process may exceed the first preset time period, and the above process satisfies a preset change trend ( The first temperature data will not change during the first preset time period). However, although the above-mentioned process satisfies a preset change trend (the first temperature data will not change in the first preset time period), in fact, the state of the temperature limiter is closed in the above process. Therefore, when the change trend of the first temperature data within the first preset time period meets the preset change trend, the state of the temperature limiter of the electric heater cannot be determined. Further, the state of the temperature limiter of the electric heater needs to be determined according to the first temperature data at the end time and the second temperature data at the end time.

Step 303: Determine the state of the temperature limiter of the electric heater according to the first temperature data at the end time and the second temperature data at the end time.

In an embodiment of the present application, when the temperature limiter is not disconnected, the difference between the first temperature data at the end time point and the second temperature data at the end time point is greater than a preset threshold. Even in the case where the electric heater is not used normally, the difference between the first temperature data at the end time point and the second temperature data at the end time point may be greater than a preset threshold. For example, when a cooler object is placed on the electric heater, or when a cooler liquid drips on the electric heater, the first temperature data at the end time point and the second temperature data at the end time point The difference between them will also be greater than a preset threshold.

In an embodiment of the present application, when the temperature limiter is turned off, the first temperature data will drop rapidly, and the speed of the first temperature data will fall faster than the speed of the second temperature data. Therefore, when the temperature limiter is turned off, When on, the difference between the first temperature data at the end time point and the second temperature data at the end time point will be less than a preset threshold. Even in the case where the electric heater is not used normally, the difference between the first temperature data at the end time point and the second temperature data at the end time point is smaller than a preset threshold. Therefore, the state of the temperature limiter of the electric heater can be determined based on the difference between the first temperature data at the end time point and the second temperature data at the end time point.

In one embodiment, the preset threshold is 20 ° C, which can be adjusted according to actual conditions.

In the embodiment of the present application, if the first temperature data does not change during the first preset time period, if the difference between the first temperature data at the end time point and the second temperature data at the end time point is less than The preset threshold determines the state of the temperature limiter of the electric heater as the off state. If the difference between the first temperature data at the end time point and the second temperature data at the end time point is greater than a preset threshold, it indicates that the first temperature data may be caused by the abnormal use of the electric heater There is no rising change in the first preset time period, but the temperature limiter is actually closed at this time.

In the above electric heater failure alarm method, when the change trend of the first temperature data in the first preset time period satisfies the preset change trend, the first temperature of the top temperature sensing bag at the end of the first preset time period is obtained. The data and the second temperature data of the environmental temperature sensing package determine the state of the temperature limiter of the electric heater according to the first temperature data at the end time and the second temperature data at the end time. Because the top temperature sensing package and the environmental temperature sensing package are part of the electric heater, no additional circuit or device is required, that is, the user can know the status of the temperature limiter without adding any cost.

Referring to FIG. 4, as an optional implementation manner, the detailed steps of step 301 may include:

Step 401: Determine whether the first temperature data has a rising change within the first preset time period;

In the embodiment of the present application, judging whether the first temperature data has a rising change in the first preset time period is specifically: judging whether the change amount of the first temperature data in the second preset time period is a positive value. The second preset time period is a unit of time change, and the size of the second preset time period needs to be much smaller than the size of the first preset time period. For example, the second preset time period is 0.1 second. It is assumed that the second preset time period is 0.1 second, and the determination of whether the change amount of the first temperature data is positive in the second preset time period is specifically: subtracting the first temperature data at 0.2 second from the time at 0.1 second The first temperature data is obtained with a change amount. If the change amount is a positive value (greater than 0), it indicates that the first temperature data has a rising change within a first preset time period.

Wherein, the first temperature data is first decreased and then gradual in the first preset time period, the first temperature data is continuously decreased in the first pre-set time period, and the first temperature data is first gradual and then decreased in the first preset time period. , The first temperature data is first gradual, then decreases and then gradual in the first preset time period, etc., because the change amount of the first temperature data is not positive in the second preset time period, the first temperature data in the above case None have changed.

Step 402: if the first temperature data does not rise and change within the first preset time period, determine that a change trend of the first temperature data meets the preset change trend;

Step 403: if the first temperature data has a rising change within the first preset time period, obtain a rising time point when the first temperature data rises;

In the embodiment of the present application, if the first temperature data changes during the first preset time period, the state of the temperature limiter cannot be directly determined as the closed state. It may also be caused by factors such as sudden voltage instability, which causes the first temperature data to change during the first preset time period. Therefore, if there is an upward change directly from the first temperature data, it is judged as a closed state, which will cause a misjudgment. In order to avoid misjudgment, when it is detected that the first temperature data has a rising change within the first preset time period, the rising time point when the first temperature data is rising is obtained, and the data after the rising time point is analyzed.

Step 404: Determine whether the first temperature data in the third preset time period after the rising time point gradually increases;

In step 405, if it does not gradually increase, the method returns to step 402, where the step of determining that the change trend of the first temperature data meets the preset change trend is performed.

In the embodiment of the present application, in order to avoid the misjudgment described in step 403, it is necessary to determine whether the first temperature data in the third preset time period gradually becomes larger. If the first temperature data gradually increases in the third preset time period, it is determined that it is not due to factors such as sudden voltage instability that the first temperature data changes in the first preset time period. The thermostat's temperature limiter is indeed closed. If it does not increase gradually in the third preset time period, it is determined that the first temperature data has an increase and change in the first preset time period due to the influence of factors such as sudden voltage instability, and the increase change is only An abnormal situation, ignoring the abnormal situation, the change trend of the first temperature data actually meets the preset change trend.

The third preset time period is less than the first preset time period, and the third preset time period is greater than the second preset time period.

In the above electric heater fault alarm method, if the first temperature data changes during the first preset time period, the rising time point when the first temperature data rises is obtained, and the third preset time period after the rising time point is determined. Whether the first temperature data in the database gradually increases. If the first temperature data gradually increases in the third preset time period, it is determined that the first temperature data is not affected by factors such as sudden voltage instability, etc. If there is an upward change in the time period, the temperature limiter of the electric heater is indeed closed. If the first temperature data does not gradually increase in the third preset time period, it is determined that the first temperature data has an increase and change in the first preset time period due to the influence of factors such as sudden voltage instability. The rising change is only an abnormal situation. Ignoring the abnormal situation, the change trend of the first temperature data actually meets the preset change trend. The above method can avoid misjudging the status of the temperature limiter, and make the judgment result more accurate.

It should be understood that although the steps in the flowcharts of FIGS. 2-4 are sequentially displayed in accordance with the directions of the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless explicitly stated in this document, the execution of these steps is not strictly limited, and these steps can be performed in other orders. Moreover, at least a part of the steps in Figure 2-4 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily performed at the same time, but may be performed at different times. These sub-steps or stages The execution order of is not necessarily performed sequentially, but may be performed in turn or alternately with at least a part of another step or a sub-step or stage of another step.

Referring to FIG. 5, an embodiment of the present application further provides an electric heater failure alarm device, including: a temperature data acquisition module 501, a status determination module 502, and an alarm module 503, wherein:

A temperature data acquisition module 501, configured to acquire first temperature data monitored by the top temperature sensing bag of the electric heater, and second temperature data monitored by the environmental temperature sensing bag;

A determination status module 502, configured to determine a status of a temperature limiter of the electric heater according to the first temperature data and the second temperature data;

The alarm module 503 is configured to perform a fault alarm operation when the state of the temperature limiter is an off state.

In one embodiment, the determination status module 502 is configured to: determine whether a change trend of the first temperature data meets a preset change trend within a first preset time period; if the change trend of the first temperature data Meet the preset change trend, and obtain first temperature data and second temperature data at the end time of the first preset time period; according to the first temperature data at the end time and the second temperature at the end time The data determines the state of the temperature limiter of the electric heater.

In one embodiment, the determination status module 502 is further configured to: determine whether the first temperature data has a rising change within the first preset time period; If the first temperature data does not change, it is determined that the change trend of the first temperature data meets the preset change trend.

In one embodiment, the determination status module 502 is further configured to determine whether a change amount of the first temperature data is a positive value within a second preset time period.

In one embodiment, the determination status module 502 is further configured to: if the first temperature data has a rising change within the first preset time period, obtain a rising time when the first temperature data rises Point; judging whether the first temperature data in the third preset time period gradually increases after the rising time point; if it does not gradually increase, return to and execute the determining that the change trend of the first temperature data meets all Describe the steps of preset changing trend.

In one embodiment, the determination status module 502 is further configured to: obtain a difference between the first temperature data at the end time and the second temperature data at the end time; and determine the according to the difference Condition of the thermostat of the electric heater.

In one embodiment, the determination status module 502 is further configured to determine the magnitude of the difference value and a preset threshold value; if the difference value is greater than or equal to the preset threshold value, determine the The state is a closed state; if the difference is less than the preset threshold, it is determined that the state of the temperature limiter is an open state.

Regarding the specific limitation of the electric heater fault alarm device, refer to the foregoing limitation on the electric heater fault alarm method, which is not repeated here. Each module in the above-mentioned electric heater failure alarm device may be implemented in whole or in part by software, hardware, and a combination thereof. Each of the above modules may be embedded in the hardware or independent of the processor in the computer device, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

Referring to FIG. 6, an embodiment of the present application further provides a computer device. The computer device may be a server. The computer device includes a processor, a memory, a network interface, and a database connected through a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for running an operating system and computer programs in a non-volatile storage medium. The database of the computer equipment is used to store the first temperature data, the second temperature data and the fault judgment algorithm. The network interface of the computer device is used to communicate with an external terminal through a network connection. The computer program is executed by a processor to implement a method for alarming a heater failure.

Those skilled in the art can understand that the structure shown in FIG. 6 is only a block diagram of a part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer equipment to which the scheme of the present application is applied. The specific computer equipment may be Include more or fewer parts than shown in the figure, or combine certain parts, or have a different arrangement of parts.

In one embodiment, a computer device is provided, which includes a memory and a processor. The memory stores a computer program that can run on the processor. When the processor executes the computer program, the following steps are implemented:

In one embodiment, the processor executes the computer program to further implement the following steps:

Judging the magnitude of the difference and a preset threshold;

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

In one embodiment, the computer program when executed by the processor further implements the following steps:

Judging the magnitude of the difference and a preset threshold;

A person of ordinary skill in the art can understand that all or part of the processes in the methods of the foregoing embodiments can be implemented by using a computer program to instruct related hardware. The computer program can be stored in a non-volatile computer-readable storage. In the medium, the computer program, when executed, may include the processes of the embodiments of the methods described above. Wherein, any reference to the memory, storage, database or other media used in the embodiments provided in this application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Synchlink DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

The technical features of the above embodiments can be arbitrarily combined. In order to make the description concise, all possible combinations of the technical features in the above embodiments have not been described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be the range described in this specification.

The above-mentioned embodiments only express several implementation manners of the present application, and their descriptions are more specific and detailed, but they cannot be understood as a limitation on the scope of patent application. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of this application patent shall be subject to the appended claims.

Claims

An electric heater failure alarm method is characterized in that the method includes:

Acquiring first temperature data monitored by a top temperature sensing bag of the electric heater, and second temperature data monitored by an environmental temperature sensing bag;

Determining a state of a temperature limiter of the electric heater according to the first temperature data and the second temperature data;

When the state of the temperature limiter is an off state, a fault alarm operation is performed.
The method according to claim 1, wherein determining the state of a temperature limiter of the electric heater according to the first temperature data and the second temperature data comprises:

Determining whether the change trend of the first temperature data within the first preset time period satisfies the preset change trend;

If the change trend of the first temperature data satisfies the preset change trend, obtaining first temperature data and second temperature data at an end time of the first preset time period;

The state of the temperature limiter of the electric heater is determined according to the first temperature data at the end time and the second temperature data at the end time.
The method according to claim 2, wherein the determining whether a change trend of the first temperature data within a first preset time period satisfies a preset change trend comprises:

Judging whether the first temperature data has a rising change within the first preset time period;

If the first temperature data does not increase during the first preset time period, it is determined that a change trend of the first temperature data meets the preset change trend.
The method according to claim 3, wherein the determining whether the first temperature data has an increasing change within the first preset time period comprises:

It is determined whether a change amount of the first temperature data is a positive value within a second preset time period.
The method according to claim 3, further comprising:

If the first temperature data has a rising change within the first preset time period, obtaining a rising time point when the first temperature data rises;

Determining whether the first temperature data in the third preset time period after the rising time point gradually increases;

If it does not gradually increase, return to and execute the step of determining that the change trend of the first temperature data satisfies the preset change trend.
The method according to claim 2, wherein determining the state of the temperature limiter of the electric heater according to the first temperature data at the end time and the second temperature data at the end time comprises: :

Acquiring a difference between the first temperature data at the end time and the second temperature data at the end time;

The state of the temperature limiter of the electric heater is determined according to the difference.
The method according to claim 5, wherein determining the state of the temperature limiter of the electric heater according to the difference value comprises:

Judging the magnitude of the difference and a preset threshold;

If the difference is greater than or equal to the preset threshold, determining that the state of the temperature limiter is a closed state;

If the difference is less than the preset threshold, it is determined that the state of the temperature limiter is an off state.
An electric heater failure alarm device is characterized in that the device includes:

A temperature data acquisition module, configured to acquire first temperature data monitored by the top temperature sensing bag of the electric heater, and second temperature data monitored by the environmental temperature sensing bag;

A status determining module, configured to determine a status of a temperature limiter of the electric heater according to the first temperature data and the second temperature data;

An alarm module is configured to perform a fault alarm operation when the temperature limiter is in an off state.
A computer device includes a memory and a processor, and the memory stores a computer program executable on the processor, wherein the processor implements any one of claims 1 to 7 when the computer program is executed. Steps of the method described in item.
A computer-readable storage medium having stored thereon a computer program, characterized in that when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.