Dishwasher leakage detection method, storage medium and computer

Abstract

The present invention relates to a dishwasher leakage detection method, storage medium, and computer. The method comprises: step S1, obtaining the real-time power value of the dishwasher's wash pump; step S2, determining whether the difference between the real-time power value and a preset normal power value is less than a preset abnormal difference; and step S3, if not, determining that the dishwasher is leaking. This method eliminates the need for additional equipment space or new devices to detect dishwasher leakage, resulting in a smaller device size and lower cost.

Description

Technical Field

[0001] The present invention relates to the field of dishwashers, and more particularly to a method, storage medium and computer for detecting water leakage in a dishwasher. Background Art

[0002] In order to detect whether there is a water leak during the washing process, traditional dishwashers are usually equipped with mechanical switches, water level sensors, water leakage sensors, etc. This requires additional devices and media, which leads to an increase in installation space and increased production costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a dishwasher leakage detection method, a storage medium and a computer.

[0004] The technical solution adopted by the present invention to solve the technical problem is to construct a dishwasher leakage detection method, which includes the following steps:

[0005] Step S1, obtaining a real-time power value of a washing pump of a dishwasher;

[0006] Step S2: determining whether the difference between the real-time power value and the preset normal power value is less than a preset abnormal difference;

[0007] Step S3: If not, the dishwasher is leaking.

[0008] Furthermore, in the dishwasher leakage detection method of the present invention, after step S1 and before step S2, the following steps are further included:

[0009] Step S121, determining whether the real-time power value is greater than a necessary abnormal value;

[0010] Step S122: If not, determine that the dishwasher is leaking;

[0011] Step S123: If yes, execute step S2.

[0012] Furthermore, in the dishwasher leakage detection method of the present invention, the real-time power value in step S121 is a real-time power value or an average power value within the preset initial operation time T1 of the washing pump.

[0013] Furthermore, in the dishwasher leakage detection method described in the present invention, the dishwasher has at least two operating modes, and each of the operating modes corresponds to a set of the preset normal power value and the preset abnormal difference value.

[0014] Furthermore, in the dishwasher leakage detection method of the present invention, the dishwasher has at least two speed ranges, each speed range corresponding to a set of the preset normal power value and the preset abnormal difference value; before step S1, the method further includes the following steps:

[0015] Step Q1: obtaining the real-time rotation speed of the washing pump of the dishwasher, and determining whether the real-time rotation speed is stable within a certain rotation speed range; if so, executing step S1.

[0016] Furthermore, in the dishwasher leakage detection method of the present invention, step S1 includes: obtaining a real-time current and a real-time voltage of the washing pump, where the product of the real-time current and the real-time voltage is the real-time power value.

[0017] Furthermore, in the dishwasher leakage detection method of the present invention, after step S3, the following steps are further included:

[0018] S4. If the dishwasher leaks, an alarm message is sent out through the alarm device of the dishwasher and all water in the dishwasher is drained.

[0019] Furthermore, in the dishwasher leakage detection method of the present invention, after step S3, the following steps are further included:

[0020] S5. If the dishwasher leaks, the power will be automatically cut off.

[0021] In addition, the present invention further provides a computer-readable storage medium storing a computer program, wherein the computer program is suitable for being loaded by a processor to execute the steps of the dishwasher water leakage detection method as described above.

[0022] In addition, the present invention also provides a computer, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the steps of the above-mentioned dishwasher leakage detection method by calling the computer program stored in the memory.

[0023] The implementation of the dishwasher leakage detection method, storage medium and computer of the present invention has the following beneficial effects: the present invention does not require additional devices and media to achieve dishwasher leakage detection, thereby reducing installation space, reducing mechanical size, and making full use of existing devices and media for leakage detection to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0025] Figure 1 This is a flow chart of dishwasher leakage detection provided by an embodiment of the present invention;

[0026] Figure 2 This is a block diagram of the dishwasher leakage detection principle provided by an embodiment of the present invention;

[0027] Figure 3 is a flow chart of dishwasher leakage detection provided by an embodiment;

[0028] Figure 4 is a flow chart of dishwasher leakage detection provided by an embodiment;

[0029] Figure 5 is a flow chart of dishwasher leakage detection provided by an embodiment;

[0030] Figure 6 This is a flow chart of dishwasher leakage detection provided by an embodiment. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0032] In a preferred embodiment, reference Figure 1 and Figure 2 The dishwasher leakage detection method of this embodiment includes the following steps:

[0033] Step S1: Acquire the real-time power value of the washing pump of the dishwasher.

[0034] Specifically, when the dishwasher begins operation, the main control module controls the injection of a set amount of water. Once the set amount of water is injected, the main control module activates the variable-frequency washing pump through the variable-frequency washing pump driver module, and the variable-frequency washing pump begins pumping water. During the pumping process, the main control module continuously obtains the operating washing pump power through the variable-frequency washing pump driver module and marks the sampled result at each moment as the real-time power value.

[0035] Step S2: Determine whether the difference between the real-time power value and the preset normal power value is less than the preset abnormal difference.

[0036] Specifically, the main control module reads the preset normal power value and the preset abnormal difference stored in the storage medium of the dishwasher, and determines whether the difference between the real-time power value and the preset normal power value is less than the preset abnormal difference, where the preset abnormal difference is the difference between the power of the washing pump when water leakage occurs and the power of the washing pump when there is no water leakage.

[0037] Step S3: If not, the dishwasher is leaking.

[0038] Specifically, if the difference between the real-time power value and the preset normal power value is not less than the preset abnormal difference, it is determined that the dishwasher is leaking and the program ends; if the difference between the real-time power value and the preset normal power value is less than the preset abnormal difference, step S2 is executed until the dishwashing process ends.

[0039] This embodiment obtains the real-time power value of the dishwasher's wash pump, calculates the difference between the real-time power value and a preset normal power value, and then compares the difference with a preset abnormal value to determine whether the dishwasher is leaking. This eliminates the need for additional devices and media for dishwasher leak detection, thereby reducing installation space and machine size, and leveraging existing devices and media for leak detection, thereby lowering costs.

[0040] In some embodiments of the dishwasher leakage detection method, reference Figure 3 , after step S1 and before step S2, further comprising the steps of:

[0041] Step S121: Determine whether the real-time power value is greater than the inevitable abnormal value.

[0042] Specifically, when the dishwasher begins operation, the main control module controls the injection of a set amount of water. Once the set amount of water has been injected, the main control module activates the variable-frequency washing pump through the variable-frequency washing pump driver module. At this point, the main control module obtains the washing pump power in its operating state through the variable-frequency washing pump driver module, marks the sampled result as the real-time power value, then reads the inevitable abnormality value stored in the storage medium and compares the real-time power value with the inevitable abnormality value. The inevitable abnormality value is smaller than the power value that just causes the washing pump to become abnormal, preventing fluctuations in the washing pump power and causing inaccurate results. If the washing pump power is not greater than the inevitable abnormality value, the washing pump is definitely abnormal.

[0043] Step S122: If not, determine that the dishwasher is leaking.

[0044] Specifically, if the real-time power value is not greater than the inevitable abnormal value, it is determined that the dishwasher is leaking and the program ends.

[0045] Step S123: If yes, execute step S2.

[0046] Specifically, if the real-time power value is greater than the inevitable abnormal value, step S2 is executed.

[0047] In this embodiment, when the dishwasher wash pump is initially started, if the difference between the detected power and the preset normal power value is exactly equal to the preset abnormal difference, the actual power value of the wash pump may be higher than the real-time detected power value due to the instability of the wash pump during initial startup, and the detected real-time power value may be lower than the actual value. This will result in a higher difference between the real-time power value and the preset normal power value, which can easily lead to a misjudgment of a water leak. This embodiment adds a necessary abnormal value to widen the range for determining a water leak, making the judgment more accurate.

[0048] Preferably, in the dishwasher leakage detection method of this embodiment, the real-time power value in step S121 is the real-time power value within the initial operation preset time T1 of the washing pump.

[0049] Based on the above embodiment, the dishwasher in this embodiment collects real-time power values ​​during the initial short operating time T1 of the wash pump and compares the real-time power values ​​during the preset initial operating time T1 with the inevitable abnormality value. If the real-time power value is less than the inevitable abnormality value, it indicates that the wash pump has leaked during the preset initial operating time T1, and further testing is not required. The preset initial operating time T1 is a short time, ranging from half a minute to one minute, or other time ranges.

[0050] In this embodiment, since the washing pump is unstable in a short period of time after being started, increasing the detection time range limit of the real-time power value can effectively improve the working efficiency of the dishwasher.

[0051] In some embodiments of the dishwasher leakage detection method, the real-time power value in step S121 is an average power value within the preset time T1 of the initial operation of the washing pump.

[0052] Specifically, during the initial preset working time T1 of the washing pump, real-time power values ​​are collected, and the average power value during the initial preset working time T1 is calculated. This is then compared with the inevitable abnormal value. If the average power value is less than the inevitable abnormal value, it means that the washing pump has been leaking since the start of the T1 period. There is no need to continue testing and the operation is stopped directly. The initial preset working time T1 is a short time, which can be half a minute to one minute or other time ranges. Using the average power value for comparison is more accurate. This is because the instability of the washing pump within a short period of time after startup makes the detected power inaccurate, so averaging is more conducive to judging the accuracy of the results.

[0053] In this embodiment, the real-time detected power value of the washing pump in the initial short period of time is replaced by the average power value within the period, thereby reducing the error of the numerical value and making the judgment result more accurate.

[0054] In some embodiments of the dishwasher leakage detection method, the dishwasher has at least two operating modes, and each operating mode corresponds to a set of preset normal power values ​​and preset abnormal difference values.

[0055] Specifically, based on the above embodiments, in order to facilitate life and improve the quality of life, the dishwasher in this embodiment can have different working modes. For example, in the fast mode, washing is faster, and the rotation speed is naturally increased, which greatly shortens the time and is suitable for situations where the tableware is less contaminated. In this mode, the power value during normal operation can be tested, and then this power value is preset in the dishwasher program. This data is called the preset normal power value. For example, in the energy-saving washing mode, which has the advantages of saving water and electricity, the normal power value in this mode will naturally be lower because there is less water and the rotation speed requirement is low. Of course, the dishwasher can also have more modes, and users can choose different modes according to different situations. The dishwasher selects the corresponding preset normal power value and the preset abnormal difference value according to the mode selected by the user.

[0056] The dishwasher in this embodiment has at least two operating modes, which increases the user's selectivity and makes it more convenient to select the most suitable mode in different situations.

[0057] Further, in the dishwasher leakage detection method of this embodiment, reference is made to Figure 4 The dishwasher has at least two speed ranges, each speed range corresponding to a set of preset normal power values ​​and preset abnormal difference values; and before step S1, the step further includes:

[0058] Step Q1: obtaining the real-time rotation speed of the washing pump of the dishwasher, and determining whether the real-time rotation speed is stable within a certain rotation speed range; if so, executing step S1.

[0059] Based on the above embodiments, the dishwasher of this embodiment can have different speed ranges for the same dishwashing mode. Each speed range corresponds to a set of preset normal power values ​​and preset abnormal difference values. During operation, the real-time speed of the washing pump is detected, and the corresponding preset normal power value and preset abnormal difference value are obtained. The real-time power value within this range is then obtained, and the difference between the real-time power value and the preset normal power value is compared with the preset abnormal difference value. For example, when washing dishes, a low speed washing pump is first used to fully blend the detergent and dirt on the dishes, making them easier to clean. The low speed within this range corresponds to a set of preset normal power values ​​and preset abnormal power values. During operation, the low speed within this range is detected, and the corresponding preset normal power value and preset abnormal difference value are obtained. The real-time power value within this range is then obtained, and the difference between the real-time power value and the preset normal power value is compared with the preset abnormal difference value. After a period of time, the speed can be increased to an appropriate power level to completely rinse away the detergent and dirt from the dishes. Similarly, the high speed range corresponds to a set of preset normal power values ​​and preset abnormal difference values. During operation, the high speed in the interval is detected and the preset normal power value and the preset abnormal difference corresponding to the speed are obtained, and then the real-time power value in the interval is obtained, and the difference between the real-time power value and the preset normal power value is compared with the preset abnormal difference.

[0060] However, because the speed of the washing pump fluctuates within a small range and is not stable at a single value, before obtaining the real-time power value, it is necessary to first determine whether the speed of the washing pump has been stable for a short period of time. If it is stable, the preset normal power value and preset abnormal power value corresponding to the real-time speed are obtained. The real-time power value for this short period of time is then obtained. The real-time power value at the real-time stable speed is then subtracted from the preset normal power value corresponding to that speed. This difference is then compared with the preset abnormal difference value corresponding to that speed to determine whether the dishwasher is leaking.

[0061] In this embodiment, the dishwasher has different speed ranges, and each speed range has a corresponding set of preset normal power values ​​and preset abnormal difference values, which makes the comparison and judgment results more accurate. Obtaining the real-time power value in a stable state also reduces errors and makes the results more accurate.

[0062] In some embodiments of the dishwasher leakage detection method, step S1 includes: obtaining the real-time current and real-time voltage of the washing pump, where the product of the real-time current and the real-time voltage is the real-time power value.

[0063] Specifically, during the dishwashing process, the dishwasher in this embodiment obtains the real-time current value and real-time voltage value of the washing pump motor, and multiplies the real-time current value and the real-time voltage value to obtain the real-time power value. Of course, the real-time power value can also be obtained through other conventional methods.

[0064] In this embodiment, the real-time power value is obtained by the product of voltage and current, which makes the method of measuring the power value simpler and more convenient.

[0065] Further, in the dishwasher leakage detection method of this embodiment, reference is made to Figure 5 , after step S3, further comprising the steps of:

[0066] S4. If the dishwasher leaks, an alarm message will be sent out through the alarm device of the dishwasher and all water in the dishwasher will be drained.

[0067] Based on the above embodiments, when the dishwasher in this embodiment determines that the dishwasher is leaking, it can remind the user that the dishwasher is leaking through one or more of the following methods: sound alarm, light alarm, text display alarm, etc. At the same time as the alarm information is issued, all water in the machine is automatically drained through the drainage device.

[0068] In this embodiment, an alarm device is added to promptly remind the user of the water leakage state of the dishwasher and remind the user to take corresponding measures in time to ensure personal safety.

[0069] Further, in the dishwasher leakage detection method of this embodiment, reference is made to Figure 6 , after step S3, further comprising the steps of:

[0070] S5. If the dishwasher leaks, the power will be automatically cut off.

[0071] On the basis of the above embodiment, when the dishwasher in this embodiment determines that the dishwasher is leaking, the dishwasher will immediately and automatically cut off the power and stop working in order to protect the dishwasher from accidents.

[0072] In this embodiment, an automatic power-off function is added, which can stop working in time, prevent the expansion of the accident caused by continued water leakage, and prevent hazards such as leakage caused by the accident, thereby effectively ensuring personal safety.

[0073] In a preferred embodiment, the computer-readable storage medium of this embodiment stores a computer program, and the computer program is suitable for being loaded by a processor to execute the steps of the dishwasher water leakage detection method as described in the above embodiment.

[0074] The computer-readable storage medium in this embodiment stores a computer program including, but not limited to, steps for a method for detecting a dishwasher leak by obtaining the real-time power value of a dishwasher's wash pump and comparing the difference between the real-time power value and a preset normal power value with a preset abnormal difference. This method eliminates the need for additional equipment and media for dishwashers, thereby reducing installation space and machine size, and allows for cost-effective leak detection by fully utilizing existing equipment and media.

[0075] In a preferred embodiment, the computer of this embodiment includes a memory and a processor. The memory stores a computer program. The processor executes the steps of the dishwasher leakage detection method as described in the above embodiment by calling the computer program stored in the memory.

[0076] The computer in this embodiment can determine the dishwasher leakage detection method through the real-time power value, the preset normal power value and the preset abnormal difference value, without adding additional equipment space and new equipment, and the equipment size is smaller and the cost is lower.

[0077] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0078] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the components and steps of each example according to their functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0079] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0080] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. All equivalent variations and modifications within the scope of the claims of the present invention are intended to be covered by the claims of the present invention.

Claims

1. A method for detecting water leakage in a dishwasher, characterized in that: The method comprises the following steps: Step S1, obtaining a real-time power value of a washing pump of a dishwasher; Step S2: determining whether the difference between the real-time power value and the preset normal power value is less than a preset abnormal difference; Step S3: If not, the dishwasher is leaking; The method further includes the following steps after step S1 and before step S2: Step S121, determining whether the real-time power value is greater than a necessary abnormal value; Step S122: If not, determine that the dishwasher is leaking; Step S123: If yes, execute step S2; The dishwasher has at least two operating modes, and each operating mode corresponds to a set of preset normal power values ​​and preset abnormal difference values.

2. The dishwasher leakage detection method according to claim 1, characterized in that: The real-time power value in step S121 is a real-time power value or an average power value within the preset time T1 of the initial operation of the washing pump.

3. The dishwasher leakage detection method according to claim 1, characterized in that: The dishwasher has at least two speed ranges, each speed range corresponding to a set of preset normal power values ​​and preset abnormal difference values; and before step S1, the dishwasher further includes the following steps: Step Q1: obtaining the real-time rotation speed of the washing pump of the dishwasher, and determining whether the real-time rotation speed is stable within a certain rotation speed range; if so, executing step S1.

4. The dishwasher leakage detection method according to any one of claims 1 to 3, characterized in that: The step S1 includes: acquiring the real-time current and real-time voltage of the washing pump, where the product of the real-time current and the real-time voltage is the real-time power value.

5. The dishwasher leakage detection method according to any one of claims 1 to 3, characterized in that: After step S3, the method further includes the following steps: S4. If the dishwasher leaks, an alarm message is sent out through the alarm device of the dishwasher and all water in the dishwasher is drained.

6. The dishwasher leakage detection method according to any one of claims 1 to 3, characterized in that: After step S3, the method further includes the following steps: S5. If the dishwasher leaks, the power will be automatically cut off.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and the computer program is suitable for being loaded by a processor to execute the steps of the dishwasher leakage detection method according to any one of claims 1 to 6.

8. A computer, characterized in that: The method comprises a memory and a processor; the memory stores a computer program; the processor is used to execute the computer program stored in the memory to implement the steps of the dishwasher leakage detection method according to any one of claims 1 to 6.

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