Method, device, equipment and medium for preventing water shortage misjudgment of water heater

Abstract

This invention relates to the field of water heaters, and particularly to a method, apparatus, device, and medium for preventing false water shortage detection in water heaters. The method includes: controlling a heating element to operate at a specified high-level and low-level switching frequency; acquiring waveform change information of the high and low levels of a Hall element under the influence of the heating element's operation; and determining whether the water heater is short of water based on the waveform change information. This invention addresses the problem of inaccurate high and low level detection in existing methods, leading to unstable water shortage warnings, by proposing a more accurate and efficient detection method.

Description

Technical Field

[0001] This invention relates to the field of water heaters, and in particular to a method, apparatus, equipment and medium for preventing water shortage misjudgment in water heaters. Background Technology

[0002] With the development of technology and the improvement of living standards, people's quality of life is gradually increasing, and their requirements for home appliances are also becoming higher. Water heaters, as a necessity in people's homes, bring a more comfortable and convenient home experience. However, there are also many safety hazards in the use of water heaters. For example, the phenomenon of dry burning must be carefully considered. Accurate water shortage warnings are needed to help users identify and use the water heater correctly. Based on the physical principles of Hall effect sensors and water tank magnets, in current technology, a normal water shortage signal is a low level, and a sufficient water level signal is a high level. When the water level is close to the critical state, the electromagnetic signal generated by the heating element affects the Hall effect sensor, causing the signal to appear as a square wave synchronized with the heating element. Therefore, the detection of high and low levels is inaccurate, resulting in unstable water shortage warnings.

[0003] Therefore, the problem of inaccurate high and low level detection, leading to unstable water shortage indications, urgently needs to be solved. Summary of the Invention

[0004] The main objective of this invention is to provide a method, apparatus, device, and medium for preventing water shortage misjudgment in water heaters, aiming to solve the problem of inaccurate high and low level detection in existing systems, which leads to unstable water shortage prompts.

[0005] To achieve the above-mentioned objective, the first aspect of the present invention provides a method for preventing false judgments of water shortage in water heaters, the method comprising:

[0006] The heating element is controlled to operate by using a specified high-level and low-level switching frequency;

[0007] Acquire waveform changes in the high and low levels of the Hall element under the influence of the heating tube's operation;

[0008] Based on the waveform change information, it is determined whether the water heater is short of water.

[0009] Furthermore, prior to the step of controlling the heating tube to operate at a specified high-level and low-level switching frequency, the following steps are included:

[0010] The heating process is divided into equal time intervals according to a certain time period;

[0011] The divided time periods are combined into heating cycles according to preset durations.

[0012] Furthermore, the step of dividing the heating process into equal time intervals according to a certain time period includes:

[0013] The heating process is divided into equal time intervals of 10ms each;

[0014] The step of composing heating cycles by dividing the time periods into preset durations includes:

[0015] A heating cycle consists of 25 10ms intervals.

[0016] Furthermore, the step of controlling the heating tube to operate at a specified high-level and low-level switching frequency includes:

[0017] During the heating cycle, the high and low voltage levels are controlled according to a preset duration ratio.

[0018] The heating element is controlled to conduct heat when it is in a low-level state.

[0019] Furthermore, the duration ratio is 24:1, where 24 represents the proportion of low level and 1 represents the proportion of high level.

[0020] Furthermore, the step of determining whether the water heater is short of water based on the waveform change information includes:

[0021] Sequentially obtain the corresponding low-level durations in the stable waveform;

[0022] Compare the low-level duration with the preset duration;

[0023] The number of times the low level lasts longer than the specified duration is incremented.

[0024] When the recorded number of times exceeds a preset value, it is determined to be a water shortage.

[0025] A second aspect of the present invention provides a device for preventing false water shortage judgment in a water heater, comprising:

[0026] The control module is used to control the heating element to operate at a specified high-level and low-level switching frequency;

[0027] The acquisition module is used to acquire waveform changes in the high and low levels of the Hall element under the influence of the heating tube's operation;

[0028] The judgment module is used to determine whether the water heater is short of water based on the waveform change information.

[0029] Furthermore, the judgment module includes:

[0030] The duration acquisition unit is used to sequentially acquire the corresponding low-level duration in the stable waveform;

[0031] The duration comparison unit is used to compare the duration of the low level with the preset duration;

[0032] The count recording unit is used to add a count record when the low level duration exceeds a specified duration;

[0033] The water shortage determination unit is used to determine that there is a water shortage when the number of recorded occurrences exceeds a preset value.

[0034] A third aspect of the present invention provides a computer device including a memory and a processor, wherein the memory stores a computer program, characterized in that the processor executes the computer program to implement the steps of the method for preventing water shortage misjudgment of any of the above claims.

[0035] A third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, characterized in that, when the computer program is executed by a processor, it implements the steps of the method for preventing water shortage misjudgment of any of the above claims.

[0036] Beneficial effects:

[0037] The present invention relates to a method, apparatus, device, and medium for preventing false water shortage judgments in water heaters. This method divides the entire heating process into equal time intervals, sets different heating duration ratios for high and low voltage levels, and generates a stable Hall effect waveform by heating low voltage levels and de-heating high voltage levels. This waveform information is then used to accurately determine the water shortage status of the heating device. This enables heating devices such as water heaters to provide more accurate water shortage warnings during operation, thereby improving user safety when using heating devices. Attached Figure Description

[0038] Figure 1 This is a schematic flowchart of a method for preventing water shortage misjudgment in a water heater according to an embodiment of the present invention;

[0039] Figure 2 This is a schematic block diagram of a device for preventing water shortage misjudgment in a water heater according to an embodiment of the present invention;

[0040] Figure 3 This is a schematic block diagram of a computer device according to an embodiment of the present invention.

[0041] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0043] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of features, integers, steps, operations, elements, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any modules and all combinations of one or more associated listed items.

[0044] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0045] Reference Figure 1 This invention provides a method for preventing false water shortage judgments in water heaters, comprising the following steps S1-S3:

[0046] S1: Controls the heating element to operate at a specified high-level and low-level switching frequency.

[0047] The system pre-divides the heating time into equal portions, which makes it easier and more intuitive to allocate the entire heating process and duration during the heating start-up process.

[0048] During the heating process, low and high level states are set. The Hall waveform generated by the alternation of high and low levels changes accordingly. The heating duration within a waveform cycle is matched to the allocation of alternating high and low level heating modes, precisely controlling the waveform shape of the corresponding Hall waveform. This addresses the issue where simply using a low level during heating would cause the Hall sensor to generate a square wave signal synchronized with the heating element, thus improving the inaccuracy of high and low levels in the Hall waveform and the instability of water shortage indications. Heating is then selected based on the current level state, choosing one level state for heating and the other for deactivation. These two alternating level states, one responsible for heating and the other for waveform adjustment, ensure both the adjustment of the Hall waveform cycle shape and the protection of circuit safety.

[0049] S2: Obtain waveform changes of the high and low levels of the Hall element under the influence of the heating tube's operation.

[0050] When the system heats up according to the set rules, the Hall sensor will generate a corresponding Hall waveform. At this time, the system internally acquires the generated Hall waveform information and internally performs quantifiable waveform pattern change information.

[0051] S3: Determine whether the water heater is short of water based on the waveform change information.

[0052] After acquiring the Hall waveform information, the duration between the waveforms is analyzed, and the duration is compared according to preset rules and the number of comparisons that meet the conditions is determined. If the number of comparisons exceeds the preset number, the current state of the heating device is determined to be a water shortage state.

[0053] As described above, the method for preventing false water shortage judgments in water heaters divides the entire heating process into equal parts based on time. Different heating duration ratios are then set for high and low voltage levels. By heating low voltage levels and de-heating high voltage levels, a stable Hall effect waveform is generated. This waveform information is then used to accurately determine the water shortage status of the heating device. This enables heating devices such as water heaters to provide more accurate water shortage warnings during operation, thereby improving user safety when using heating devices.

[0054] In one embodiment, the step preceding the step of controlling the heating element to operate by specifying the switching frequency between high and low levels includes:

[0055] S11: Divide the heating process into equal time intervals according to a certain time.

[0056] The system pre-divides the heating time into equal portions, which makes it easier and more intuitive to allocate the entire heating process and duration during the heating start-up process.

[0057] S12: The divided time periods are combined into heating cycles according to the preset duration.

[0058] Within the defined heating time periods, a heating cycle is formed if the heating time period reaches a certain threshold. During the heating process of the heating device, heating is carried out in a cyclical manner.

[0059] In one embodiment, the step of dividing the heating time into equal portions as described above includes:

[0060] S21: Divide the heating process into equal time intervals of 10ms each.

[0061] In this solution, the system internally divides the entire heating process into 10ms increments. This detailed data allows for a more precise and intuitive allocation of the heating process and duration during the subsequent heating process.

[0062] In another embodiment of this solution, the heating process is not limited to dividing the time period into equal units of 10ms, but can also be divided into time periods in preset units according to actual needs.

[0063] The step of composing heating cycles by dividing the time periods into preset durations includes:

[0064] S22: A heating cycle consists of 25 10ms intervals.

[0065] Within a predefined heating time period of 10ms, a heating cycle is defined if the heating time period reaches a threshold of 250ms. The heating process of the device involves cyclical heating.

[0066] In another embodiment of this solution, the heating process is not limited to a heating cycle consisting of 25 10ms intervals, and the heating cycle can be divided according to actual needs.

[0067] In one embodiment, the step of controlling the heating element to operate by specifying the switching frequency between high and low levels includes:

[0068] S31: During the heating cycle, the high and low voltage levels are controlled according to a preset duration ratio;

[0069] Within a known heating cycle, if the circuit is connected when the voltage level is low, the circuit is turned on. After the duration meets the preset low-level duration ratio, the voltage level of the current heating cycle is switched. At this time, the current voltage level should be switched to high level according to the preset duration ratio.

[0070] S32: Controls the heating element to conduct heating when it is in a low-level state.

[0071] Once the system receives the heating signal, it begins processing, determining whether the current voltage level is low or high, and then taking appropriate action based on the specific voltage level. For example, if the initial input voltage level is low by default, and the system detects a low voltage level, it will activate the circuit for heating. If the system detects a high voltage level, it will pause the heating process.

[0072] In one embodiment, the duration ratio described above is 24:1, where 24 represents the proportion of low level and 1 represents the proportion of high level.

[0073] The preset ratio is that the heating time ratio between high and low levels is 24:1; in the low level state, 24 10ms durations are allocated, followed by switching to the high level; in a 250ms heating cycle, 24 10ms durations are allocated to the low level state, and 1 10ms duration is allocated to the high level state.

[0074] In another embodiment of this solution, the duration ratio is not limited to 24:1, and the respective proportions of high level and low level can be flexibly set according to actual needs.

[0075] In one embodiment, the step of determining whether the water heater is short of water based on the waveform change information includes:

[0076] S41: Sequentially obtain the corresponding low-level duration in the stable waveform.

[0077] Based on the quantifiable Hall waveform information generated by the Hall sensor, the corresponding low-level duration is sequentially identified and obtained.

[0078] S42: Compare the low-level duration with the preset duration.

[0079] The low-level signals obtained sequentially are compared with a preset duration. The preset duration refers to the duration preset based on experience in the Hall rectangular wave generated by the Hall principle for water shortage judgment in daily use, with the waveform period as a reference. Here, it can be calculated as half the duration of the period in the rectangular wave.

[0080] S43: Increase the number of records when the low level duration exceeds the specified duration.

[0081] If the comparison result shows that the duration of the low level is greater than the specified duration, then this result will be recorded.

[0082] S44: When the recorded number of times exceeds a preset value, it is determined that there is a water shortage.

[0083] After the comparison and count are recorded repeatedly, when the count exceeds the predetermined value of the system, it will be determined that the heating device is in a water shortage state and a water shortage warning will be generated.

[0084] As described above, this solution can generate quantifiable Hall waveform information based on the Hall sensor, sequentially identify the corresponding low-level duration and high-level duration, and obtain their respective durations. The durations of the sequentially obtained low-level and high-level durations are compared. Each high-level and low-level can only be compared once, which is equivalent to a comparison of the durations of low-level and high-level within one waveform cycle. If the comparison result is that the duration of the low-level is greater than the preset duration, the result is recorded. After repeating the comparison and recording, when the number of comparisons exceeds the predetermined value of the system, it is determined that the current heating device is in a water shortage state, and a water shortage prompt is generated.

[0085] Reference Figure 2 This invention also provides a device for preventing false water shortage judgments in water heaters, comprising:

[0086] The control module 10 is used to control the heating tube to operate at a specified high-level and low-level switching frequency;

[0087] The acquisition module 20 is used to acquire waveform change information of the high and low levels of the Hall element under the influence of the heating tube operation;

[0088] The judgment module 30 is used to determine whether the water heater is short of water based on the waveform change information.

[0089] In one embodiment, prior to the control module 10, the following is included:

[0090] Equal division unit, used to divide the heating process into equal time periods according to a certain time;

[0091] The preset cycle unit is used to divide the time periods into heating cycles according to preset durations.

[0092] In one embodiment, the control module 10 includes:

[0093] The specific unit is used to divide the heating process into equal time intervals of 10ms.

[0094] The specific components are used to form a heating cycle consisting of 25 10ms time intervals.

[0095] In one embodiment, the control module 10 further includes:

[0096] A level conversion unit is used to convert a low level to a high level according to a preset duration ratio during the heating cycle;

[0097] The conducting heating unit is used to control the heating tube to conduct heating when it is in a low-level state.

[0098] In one embodiment, the determining module 30 further includes:

[0099] The duration acquisition unit is used to sequentially acquire the low-level duration and high-level duration corresponding to the stable waveform;

[0100] The duration comparison unit is used to compare the durations of two adjacent low-level and high-level signals.

[0101] The count recording unit is used to add a count record when the duration of the low level is longer than the duration of the high level.

[0102] The water shortage detection unit is used to determine water shortage when the number of times the low level duration is greater than the high level duration is greater than a preset value.

[0103] Reference Figure 3 The present invention also provides a computer device, the internal structure of which can be as follows: Figure 3 As shown. The computer device includes a processor, memory, network interface, and database connected via a system bus. The processor is designed to provide computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores operating devices, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database stores information such as Hall effect waveforms. The network interface is used to communicate with external terminals via a network connection. Furthermore, the computer device may also include input devices and a display screen. When the processor executes the computer program, it implements a method to prevent false water shortage judgments in the water heater, including the following steps: controlling the heating element to operate at a specified high-level and low-level switching frequency; acquiring waveform change information of the high and low levels of the Hall element under the influence of the heating element's operation; and determining whether the water heater is short of water based on the waveform change information. Those skilled in the art will understand that... Figure 3The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer equipment on which the present application is applied.

[0104] One embodiment of this application also provides a computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements a method to prevent false water shortage judgments in a water heater, including the following steps: controlling a heating element to operate at a specified high-level and low-level switching frequency; acquiring waveform change information of the high and low levels of a Hall element under the influence of the heating element's operation; and determining whether the water heater is short of water based on the waveform change information. It is understood that the computer-readable storage medium in this embodiment can be a volatile readable storage medium or a non-volatile readable storage medium.

[0105] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in this application and in the embodiments can include non-volatile and / or volatile memory. Non-volatile memory can 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 a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual-speed SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0106] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0107] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for preventing false water shortage judgments in water heaters, characterized in that, The method includes: The heating element is controlled to operate by using a specified high-level and low-level switching frequency; Acquire waveform changes in the high and low levels of the Hall element under the influence of the heating tube's operation; Based on the waveform change information, determine whether the water heater is short of water; Before the step of controlling the heating tube to operate at a specified high-level and low-level switching frequency, the following steps are included: The heating process is divided into equal time intervals according to a certain time period; The time periods are divided into heating cycles according to preset durations; The step of controlling the heating tube to operate at a specified high-level and low-level switching frequency further includes: During the heating cycle, the high and low voltage levels are controlled according to a preset duration ratio. The heating element is controlled to conduct heating when it is in a low-level state; The step of determining whether the water heater is short of water based on the waveform change information includes: Sequentially obtain the corresponding low-level durations in the stable waveform; Compare the low-level duration with the preset duration; The number of times the low level lasts longer than the specified duration is incremented. When the recorded number of times exceeds a preset value, it is determined to be a water shortage.

2. The method for preventing false water shortage judgment in water heaters according to claim 1, characterized in that, The step of dividing the heating process into equal time intervals includes: The heating process is divided into equal time intervals of 10ms each; The step of composing heating cycles by dividing the time periods into preset durations includes: A heating cycle consists of 25 10ms intervals.

3. The method for preventing false water shortage judgment in water heaters according to claim 1, characterized in that, include: The duration ratio is 24:1, where 24 represents the proportion of low level and 1 represents the proportion of high level.

4. A device for preventing false water shortage judgment in water heaters, characterized in that, include: The control module is used to control the heating element to operate at a specified high-level and low-level switching frequency; The acquisition module is used to acquire waveform changes in the high and low levels of the Hall element under the influence of the heating tube's operation; The judgment module is used to determine whether the water heater is short of water based on the waveform change information; Prior to the control module, it includes: Equal division unit, used to divide the heating process into equal time periods according to a certain time; A preset cycle unit is used to divide the time periods into heating cycles according to a preset duration. The control module also includes: A level conversion unit is used to control the high and low level inputs according to a preset duration ratio during the heating cycle; The conducting heating unit is used to control the heating tube to conduct heating when it is in a low-level state; The judgment module includes: The duration acquisition unit is used to sequentially acquire the corresponding low-level duration in the stable waveform; The duration comparison unit is used to compare the duration of the low level with the preset duration; The count recording unit is used to add a count record when the low level duration exceeds a specified duration; The water shortage determination unit is used to determine that there is a water shortage when the number of recorded occurrences exceeds a preset value.

5. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method for preventing water shortage misjudgment as described in any one of claims 1 to 3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method for preventing water shortage misjudgment as described in any one of claims 1 to 3.

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