A washing device, a water temperature control method thereof, an electronic device, and a storage medium

Abstract

This invention provides a washing device and its water temperature control method, electronic device, and storage medium. The method includes the following steps: when a water temperature control command is received, determining whether the sensor used to detect the water temperature of the washing device is faulty; if the water temperature sensor is faulty, determining the required water temperature for the washing device; determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature; and controlling the water temperature regulating device to adjust the water temperature according to the target adjustment time. Even in the case of a faulty water temperature sensor, this invention can still control the water temperature by calling an intelligent water temperature control algorithm based on changes in washing parameters, achieving precise water temperature control. This solves the problem of the washing device being unable to control the water temperature in the case of a faulty water temperature sensor, achieving the same water temperature control effect as in the case of a non-faulty water temperature sensor, achieving the same washing effect, ensuring the washing effect, improving the user experience, and effectively reducing the user's usage and maintenance costs.

Description

Technical Field

[0001] This invention relates to the field of washing device control technology, and in particular to a washing device and its water temperature control method, electronic equipment and storage medium. Background Technology

[0002] Washing appliances, especially washing machines, are essential household appliances. Most washing machines have water temperature control, which is almost a mandatory feature. The water temperature required by the washing machine has a significant impact on the washing effect, and some washing machines achieve their sterilization and disinfection functions by heating the water in the drum.

[0003] However, water temperature sensors, as traditional electronic components, are prone to damage due to lifespan or manufacturing quality issues. In existing washing machine water temperature control algorithms, a malfunctioning water temperature sensor will prevent the washing machine from controlling the water temperature, or the display panel will show a fault status, and the washing machine will not operate. Current solutions not only affect washing performance and cause inconvenience to users' daily lives but also incur high repair costs. Summary of the Invention

[0004] In order to achieve the above-mentioned objectives and other advantages of the present invention, a first objective of the present invention is to provide a water temperature control method for a washing device, comprising the following steps:

[0005] When a water temperature control command is received, it is determined whether the sensor used to detect the water temperature of the washing device is faulty.

[0006] If the sensor used to detect the water temperature of the washing device malfunctions, then the required water temperature for the washing device is determined.

[0007] The target adjustment time of the water temperature regulating device in the washing device is determined by the water temperature required by the washing device.

[0008] The water temperature is adjusted by controlling the water temperature regulating device according to the target adjustment time.

[0009] Furthermore, the water temperature control command is either a command to increase the water temperature or a command to decrease the water temperature.

[0010] Furthermore, determining the required water temperature for the washing device includes the following steps:

[0011] Get the current washing mode of the washing device;

[0012] The preset water temperature threshold corresponding to the washing stage in the current washing mode is used as the current required water temperature.

[0013] Furthermore, the washing stage can be a cold water washing stage, a warm water washing stage, a hot water washing stage, or a high-temperature boiling washing stage.

[0014] Furthermore, determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature includes the following steps:

[0015] Obtain the preset adjustment time corresponding to the water temperature required by the washing device;

[0016] The preset adjustment time is used as the target adjustment time.

[0017] Furthermore, determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature includes the following steps:

[0018] Get the current washing parameters;

[0019] The target adjustment time is calculated using a water temperature adjustment program table based on the washing parameters and the water temperature required by the washing device; wherein the water temperature adjustment program table stores the correspondence between the washing parameters, the water temperature required by the washing device, and the target adjustment time.

[0020] Furthermore, the washing parameters include ambient temperature, initial water temperature for water temperature adjustment, weight of clothes, and target water intake.

[0021] Furthermore, the construction of the water temperature regulation program table includes the following steps:

[0022] Before the sensor used to detect the water temperature of the washing device malfunctions, the ambient temperature is collected and stored;

[0023] Obtain the weight of the clothes in the washing machine drum, calculate the target water intake based on the weight of the clothes, and store the weight of the clothes and the corresponding target water intake.

[0024] The water temperature inside the washing device tub before water temperature adjustment is collected, stored, and marked as the initial water temperature for water temperature adjustment;

[0025] After entering the water temperature adjustment phase, the water temperature inside the tank is collected and timed in real time until the water temperature inside the tank reaches the preset target temperature, thus obtaining the target adjustment time.

[0026] The ambient temperature, clothing weight, target water intake, initial water temperature for temperature adjustment, and target adjustment time are stored and updated to form a water temperature adjustment program table.

[0027] Furthermore, the washing parameters also include the water temperature adjustment rate;

[0028] The construction of the water temperature regulation program table also includes the following steps:

[0029] The rate at which the water temperature in the tank reaches the preset target temperature is calculated using the initial water temperature, the preset target temperature, and the timing results.

[0030] The ambient temperature, clothing weight, target water intake, initial water temperature for temperature regulation, target regulation time, and water temperature regulation rate are stored and updated to form a water temperature regulation program table.

[0031] Furthermore, the construction of the water temperature regulation program table also includes the following steps:

[0032] The water temperature inside the tub is sampled during the current working program of the washing device, and the water temperature change curve inside the tub is calculated.

[0033] If the calculated slope is within the preset range, it is determined to be normal operation, and the latest water temperature in the tub is obtained or the average water temperature in the tub of the current working program of the washing device is calculated.

[0034] If the latest or average water temperature has not been stored, then store and mark it as the initial water temperature for water temperature adjustment;

[0035] If the calculated slope is not within the preset range, the initial water temperature for updating the water temperature adjustment will be abandoned, and the system will wait for the water temperature control command.

[0036] Furthermore, it also includes the following steps:

[0037] Obtain the current operating parameters and preset operating parameters of the water temperature regulating device; wherein, the current operating parameters include the current power supply voltage and the current inlet water pressure, and the preset operating parameters include the rated voltage and the preset standard water pressure;

[0038] The actual adjustment time of the water temperature regulating device is calculated using the current operating parameters, preset operating parameters, and target adjustment time.

[0039] The water temperature is adjusted by controlling the water temperature regulating device according to the actual adjustment time.

[0040] Furthermore, if the sensor used to detect the water temperature of the washing device is normal, the water temperature regulating device is controlled to regulate the water temperature, and the water temperature in the tub is collected and timed in real time until the water temperature in the tub reaches the preset target temperature. The water temperature regulation rate at which the water temperature in the tub reaches the preset target temperature is calculated based on the initial water temperature, the preset target temperature and the timing result.

[0041] Furthermore, the calculation of the water temperature adjustment rate at which the water temperature in the tank reaches the preset target temperature based on the initial water temperature, the preset target temperature, and the timing results includes the following steps:

[0042] Obtain the initial water temperature for water temperature regulation;

[0043] Calculate the adjustment time;

[0044] When the water temperature in the tank rises or falls by a preset temperature, the water temperature adjustment rate is calculated based on the preset temperature and adjustment time, the water temperature adjustment rate is stored, the adjustment time is cleared to zero and recalculated, and the initial water temperature for the water temperature adjustment is updated.

[0045] When the water temperature in the tank reaches the preset target temperature, and the temperature rise / fall is less than the preset temperature, the water temperature adjustment rate is calculated based on the temperature rise / fall.

[0046] A second objective of the present invention is to provide a washing apparatus that applies the above-described method.

[0047] A third object of the present invention is to provide an electronic device comprising: a memory having program code stored thereon; and a processor connected to the memory, wherein the above-described method is implemented when the program code is executed by the processor.

[0048] A fourth objective of the present invention is to provide a computer-readable storage medium, characterized in that it stores program instructions thereon, which, when executed, implement the above-described method.

[0049] Compared with the prior art, the beneficial effects of the present invention are:

[0050] This invention provides a washing device and its water temperature control method, electronic device, and storage medium. Even when the sensor used to detect the water temperature of the washing device is faulty, it can still control the water temperature by calling an intelligent water temperature control algorithm based on changes in washing parameters, achieving precise water temperature control. This solves the problem that the washing device cannot control the water temperature when the sensor used to detect the water temperature is faulty, achieving the same water temperature control effect as when the sensor is not faulty, achieving the same washing effect, ensuring the washing effect, improving the user experience, and effectively reducing the user's usage and maintenance costs.

[0051] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description

[0052] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0053] Figure 1 This is a flowchart of the water temperature control method for the washing device in Example 1;

[0054] Figure 2 This is a flowchart illustrating the process of determining the required water temperature for the washing device in Example 1.

[0055] Figure 3 The process of determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature of the washing device is described in Example 1. Figure 1 ;

[0056] Figure 4 The process of determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature of the washing device is described in Example 1. Figure 2 ;

[0057] Figure 5 This is a flowchart illustrating the construction of the water temperature regulation program table in Example 1;

[0058] Figure 6 This is a flowchart of the water temperature regulation rate calculation for Example 1;

[0059] Figure 7 The flowchart for calculating the segmented water temperature regulation rate in the water temperature regulation procedure table construction of Example 1 is shown.

[0060] Figure 8 This is a flowchart illustrating the initial water temperature adjustment process in Example 1.

[0061] Figure 9 This is a flowchart illustrating the actual adjustment time calculation for Example 1;

[0062] Figure 10 This is a flowchart of the water temperature control process under normal conditions of the water temperature sensor in Example 1.

[0063] Figure 11 This is a flowchart illustrating the calculation of the segmented water temperature regulation rate under normal conditions of the water temperature sensor in Example 1.

[0064] Figure 12 This is a schematic diagram of the electronic device in Example 3;

[0065] Figure 13 This is a schematic diagram of the storage medium in Example 4. Detailed Implementation

[0066] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0067] Example 1

[0068] A method for controlling water temperature in a washing device, such as Figure 1 As shown, it includes the following steps:

[0069] S1. When a water temperature control command is received, determine whether the sensor used to detect the water temperature of the washing device is faulty.

[0070] In this embodiment, the sensors used to detect the water temperature of the washing device include thermocouples, thermopile, thermistors, resistance temperature detectors, IC temperature sensors, etc., hereinafter referred to as water temperature sensors. The water temperature sensors are located inside the washing device and are mainly used to detect the water temperature inside the washing device tub. When the washing device needs to detect the water temperature, the water temperature sensor transmits the detection result to the main control board of the washing device via an electrical signal. The main control board then adjusts the operation of the washing device according to the water temperature.

[0071] When the washing machine is powered on, the water temperature sensor will sample the water temperature in the washing machine tub in real time. When the main control board determines that the water temperature collected by the water temperature sensor is not within a reasonable range, it considers the water temperature sensor to be faulty.

[0072] When the water temperature sensor malfunctions, the washing machine's main control board automatically calls the water temperature control algorithm under faulty conditions, still controlling the water temperature regulator to perform the water temperature control function. The specific water temperature control process is as follows:

[0073] S2. If the sensor used to detect the water temperature of the washing unit malfunctions, determine the required water temperature for the washing unit.

[0074] Water temperature in a washing machine has a significant impact on the washing effect; different temperatures achieve different washing results. In actual use, the stages in the washing cycle that require the use of a water temperature sensor include the main wash, rinsing, and sterilization / disinfection stages.

[0075] In this embodiment, the water temperature control command can be either a water temperature increase command or a water temperature decrease command. Specifically, the water temperature increase command can be a heating command, a heat supply command, etc., and is applicable to water temperature control from a lower water temperature state to a higher water temperature state. For example, from the water intake process of the washing device to the subsequent washing modes such as warm water wash, hot water wash, and high-temperature boiling wash, or from a washing mode of warm water wash to hot water wash, high-temperature boiling wash, etc. The water temperature decrease command can be a water addition command, a cooling command, etc., and is applicable to water temperature control from a higher water temperature state to a lower water temperature state. For example, from a washing mode of high-temperature boiling wash to hot water wash, warm water wash, and cold water wash, or from a washing mode of hot water wash to warm water wash, cold water wash, etc.

[0076] like Figure 2 As shown, determining the required water temperature for the washing device includes the following steps:

[0077] S21. Obtain the current washing mode of the washing device; wherein, each washing program of the washing device has different washing modes, and the different washing modes are generated by the different movement methods of the inner tub and pulsator driven by the drive device during washing. The washing modes include fully automatic washing mode, uniform power washing mode, hand washing mode, and dual power washing mode, etc. Each washing mode can be selected according to different characteristics of clothing, such as material, color, degree of stain, etc. Each washing mode includes a main wash stage and / or a rinsing stage and / or a sterilization and disinfection stage.

[0078] Taking the main wash stage as an example, it can be either a standard wash or a quick wash. In principle, the washing principles of quick wash and standard wash are basically the same: both use rotation, friction, and water flow to remove stains and dirt from clothes. The quick wash in the main wash stage of a washing machine is a fast way to wash clothes, generally shorter, usually around 15-30 minutes, and may only rinse once. It uses a higher rotation speed and water flow to speed up the washing process. The standard wash, on the other hand, generally takes 60 minutes or longer, adjusting the rotation speed, water flow, and detergent amount at different stages of the wash to achieve better washing results, and may rinse twice or more. Generally, quick wash is only suitable for light stains and cannot completely remove more stubborn stains and odors, while standard wash can thoroughly remove dirt and odors from clothes.

[0079] Because the standard wash and quick wash of a washing machine have different washing times and effects, the water temperature required for the standard wash and quick wash in the main wash and rinsing stages of the washing mode is different.

[0080] The water temperature for washing machines also needs to take into account factors such as the fabric, color, and degree of soiling of the clothes. Therefore, in addition to fully automatic washing modes, washing machines can also be set to gentle washing, hand washing, and dual-power washing modes. These washing modes can be selected according to different garment characteristics, including fabric, color, and degree of soiling. For example, different fabrics have different water temperature requirements. Generally speaking, cotton, linen, and other natural fiber garments are suitable for washing with cold or warm water, while silk, wool, and other soft fibers require cold water washing to prevent shrinkage and deformation.

[0081] The severity of the stain is also an important factor in choosing the water temperature. Lightly stained clothes can be washed with cold or warm water, while heavily stained clothes need to be washed with hot water. For example, oil stains and sweat stains are more difficult to remove and require hot water washing.

[0082] Different colored clothes require different water temperatures. Dark-colored clothes are prone to fading and need to be washed with cold or warm water, while light-colored clothes can be washed with warm or hot water for better cleaning results.

[0083] Typically, after the washing stage, the washing machine enters the rinsing stage. At this time, all the washing liquid is drained, and the detergent in the washing liquid has been fully dissolved. The washing machine then rinses the clothes with clean water to remove detergent and impurities. During this process, rinsing agent may be used. The water temperature and adjustment time can be determined according to the type and amount of rinsing agent to fully utilize its effect.

[0084] From a health perspective, clothing such as infant clothes, underwear, and patient clothes need to be washed in hot water to sterilize and disinfect them. The water temperature can also be increased during the sterilization and disinfection process to achieve high-temperature sterilization and disinfection of the clothes, which is a win-win situation.

[0085] S22. The preset water temperature threshold corresponding to the washing stage in the current washing mode is used as the water temperature required by the washing device. The washing stage is either a cold water wash stage, a warm water wash stage, a hot water wash stage, or a high-temperature boiling wash stage.

[0086] Cold water washing refers to setting the water temperature of the washing machine below 15℃; it is suitable for some clothes that are easily heated, such as silk, wool, and satin. If these clothes are washed with hot water, they are prone to deformation and shrinkage.

[0087] Warm water washing refers to washing clothes in water at a temperature of 15℃-30℃. This temperature can better activate the enzymes in the detergent, effectively removing stains from clothes. It is gentle on clothes and makes them softer, fluffier, and more vibrant, as well as more comfortable to wear. It is suitable for some heat-resistant clothes, such as cotton, linen, and synthetic fibers. If these clothes are washed with cold water, they may not be cleaned properly, and if washed with hot water, they may deform or shrink.

[0088] Hot water washing refers to washing clothes with water temperature raised to 30℃-60℃. It is suitable for some clothes that are difficult to clean, such as those with oil stains or sweat stains. If these clothes are washed with cold or warm water, they are easy to not be cleaned properly.

[0089] High-temperature washing refers to raising the washing water temperature to 90℃ or even 95℃ and maintaining it for about half an hour. From a health perspective, high-temperature washing is suitable for items such as infant clothing, underwear, and clothing worn by patients.

[0090] S3. Determine the target adjustment time of the water temperature regulating device in the washing device based on the water temperature required by the washing device.

[0091] In this embodiment, the water temperature regulating device of the washing apparatus includes, but is not limited to, an electric heater, a heat pump water temperature regulating device, and a water inlet valve. The electric heater uses electric heating, and the heat pump water temperature regulating device uses a heat pump heating and cooling method. Electric heating uses resistance to convert electrical energy into heat energy to heat the water, raising the water temperature to the set temperature, thereby improving the washing effect. Heat pump heating and cooling utilizes the principle of heat transfer. The heat pump, through compression and expansion, transfers heat energy from the low-temperature air to the water to raise the water temperature, or transfers heat energy from the water to the air, raising or lowering the water temperature to the set temperature, thereby improving the washing effect.

[0092] like Figure 3 As shown, determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature includes the following steps:

[0093] S31. Obtain the preset adjustment time corresponding to the water temperature required by the washing device. The preset adjustment time for different water temperatures can be preset in the control system of the washing device. This preset adjustment time can be obtained by testing the adjustment time corresponding to different water temperatures in advance. For example, in the standard wash mode, the required temperature for the washing device during a warm water wash is 15℃-30℃, and the preset adjustment time for 15℃-30℃ is t1. In the standard wash mode, the required temperature for the washing device during a hot water wash is 30℃-60℃, and the preset adjustment time for 30℃-60℃ is t2. Changing the standard wash mode from hot water to warm water requires a preset adjustment time of t3, etc.

[0094] S32. Use the preset adjustment time as the target adjustment time. If the water temperature sensor malfunctions, the preset adjustment time can be used as the target adjustment time to control the water temperature regulating device, ensuring normal water temperature regulation within the washing unit and achieving a normal washing effect.

[0095] Since the actual operating conditions of the washing device cannot perfectly match the preset operating conditions, in order to meet actual needs and avoid excessive deviation between actual and preset values, which would affect the washing effect of the washing device.

[0096] The adjustment time of the water temperature regulating device in a washing machine is usually affected by factors such as the amount of water entering the washing machine tub, the power, and the current water temperature.

[0097] like Figure 4 As shown, determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature includes the following steps:

[0098] S300: Obtain the current washing parameters; these parameters include ambient temperature, initial water temperature for temperature adjustment, weight of clothes, and target water intake. Ambient temperatures vary significantly across seasons. In low-temperature, high-humidity environments, the efficiency of the water temperature adjustment device in the washing machine for raising the water temperature decreases, while its efficiency for lowering the water temperature increases. Consequently, the time required to raise the water temperature in the drum to the temperature required by the washing machine is extended, and the time required to lower the water temperature in the drum to the temperature required by the washing machine is shortened.

[0099] Ambient temperature also affects tap water temperature; that is, ambient temperature influences the corresponding inlet water temperature. After the initial water intake, when entering the subsequent washing cycle, the inlet water temperature corresponding to the ambient temperature becomes the initial water temperature for temperature adjustment. The adjustment time for raising the inlet water temperature to the required temperature of the washing machine varies significantly depending on the ambient temperature. For example, because the ambient temperature is very low in winter, the tap water temperature is also very low. This results in a large temperature difference between heating the low-temperature water to the high-temperature water, thus lengthening the adjustment time.

[0100] The ambient temperature is detected by the ambient temperature sensor built into the washing device. When the water temperature sensor is working properly, the main control board will store the ambient temperature and the corresponding ambient water temperature in its memory. When the water temperature sensor fails, the main control board will read the corresponding ambient water temperature from the memory as the initial water temperature for water temperature adjustment.

[0101] When switching from a washing cycle with higher water temperature to a lower water temperature, or vice versa, the initial water temperature will affect the temperature adjustment time. For example, switching from a high-temperature wash to a warm water wash requires a higher initial water temperature than switching from a hot water wash to a warm water wash. Therefore, in the current usage scenario of the washing machine, the temperature adjustment time for switching from a high-temperature wash to a warm water wash will be longer than that for switching from a hot water wash to a warm water wash.

[0102] The main control board of the washing machine determines the amount of water needed, i.e., the target water intake, based on the program set in the washing machine and the weight of the clothes. The more water is introduced, the more water molecules need to be heated / supplied, the greater the energy required for the heating / suppliing process, and the longer the adjustment time for heating / suppliing water to the temperature required by the washing machine.

[0103] S310. Calculate the target adjustment time based on the washing parameters and the water temperature required by the washing device using the water temperature adjustment program table; wherein, the water temperature adjustment program table stores the correspondence between the washing parameters, the water temperature required by the washing device, and the target adjustment time.

[0104] The water temperature control program automatically learns and updates itself based on changes in washing parameters. For example... Figure 5 As shown, the construction of the water temperature regulation program table includes the following steps:

[0105] S301. Collect and store ambient temperature before the sensor used to detect the water temperature of the washing device fails;

[0106] S302. Obtain the weight of the clothes in the washing device tub, calculate the target water intake based on the weight of the clothes, and store the weight of the clothes and the corresponding target water intake.

[0107] Before water enters the washing machine, the tub of the washing machine can be controlled to rotate a few times. The main control board obtains the number and magnitude of pulses from the motor's working coil, and the main control board realizes the weight sensing of the clothes based on the number and magnitude of pulses from the motor's working coil.

[0108] The weight of the clothes can also be obtained through weighing sensors inside the washing machine or by manual measurement.

[0109] Then the main control board determines the required water intake based on the program set in the washing machine and the weight of the clothes.

[0110] S303. Collect, store, and mark the water temperature in the washing machine tub before water temperature adjustment as the initial water temperature for water temperature adjustment. For example, when directly entering the subsequent washing program from the water inlet stage, the water temperature in the washing machine tub after water inlet is completed can be collected, stored, and marked as the water temperature corresponding to the ambient temperature. At this time, the water temperature corresponding to the ambient temperature is the initial water temperature for water temperature adjustment. The final water temperature in the washing machine tub after water inlet is directly used as the initial water temperature for water temperature adjustment. This method is relatively simple and direct. When changing from hot water wash to cold water wash, the water temperature in the washing machine tub before water temperature adjustment can be collected. The latest collected water temperature in the washing machine tub before water temperature adjustment is the initial water temperature for water temperature adjustment. This latest collected water temperature can be directly used as the initial water temperature for water temperature adjustment, etc.

[0111] During the current operation of the washing machine, when the user pauses or reselects a washing mode, the main control board records the initial water temperature. After the user selects a new washing mode, the water temperature is then increased or decreased based on the recorded initial temperature. For example, during the water intake process, when the user pauses or reselects a washing mode, the main control board records the current inlet water temperature. After the user selects a new washing mode, the water temperature is then increased or decreased based on the recorded initial temperature. When the user selects to change from a hot water wash to a cold water wash, the main control board records the initial water temperature, which is the latest water temperature collected from the washing machine tub before the temperature adjustment. The water temperature is then decreased based on the recorded initial temperature, and so on. Figure 8 As shown, the specific steps include:

[0112] S315. During the current operating program of the washing device, the water temperature inside the tub is sampled, and the water temperature change curve inside the tub is calculated; wherein, the operating program includes water intake program, washing program, rinsing program, sterilization and disinfection program, etc. For example, the water temperature inside the tub is sampled during the water intake process, and then the water temperature change curve inside the tub is calculated.

[0113] S316. If the calculated slope is within a preset range (the preset range can be set according to the water temperature change pattern of the current working program), it is determined to be normal operation, and the latest water temperature in the tub is obtained or the average water temperature in the tub for the current working program executed by the washing device is calculated; for example, during the water inlet process, if the calculated slope is within 0±a, it is determined to be normal operation, and the average water temperature in the tub from the start to the end of water inlet is calculated. When the user selects hot water washing, if the calculated slope is within a preset range, it is determined to be normal operation, and the latest water temperature in the tub is obtained;

[0114] S317. If the latest water temperature or average water temperature has not been stored, the latest water temperature or average water temperature is stored and marked as the initial water temperature for water temperature adjustment. When the subsequent washing program is directly entered from the water inlet stage, the error of a single measurement can be reduced by calculating the average value of the water temperature in the tub from the start of water inlet to the end of water inlet.

[0115] S318. If the calculated slope is not within the preset range, the initial water temperature adjustment will be abandoned, and the system will wait for the water temperature control command. Based on the water temperature change curve of the current working program of the washing device, it can intelligently filter out abnormal situations such as the user changing the washing mode midway or restarting, thus realizing the intelligent and precise learning of the water temperature control algorithm.

[0116] S304. After entering the water temperature adjustment phase, the water temperature inside the tank is collected and timed in real time until the water temperature inside the tank reaches the preset target temperature, and the target adjustment time is obtained.

[0117] S305. Store and update the ambient temperature, clothing weight, target water intake, initial water temperature for water temperature adjustment, and target adjustment time to form a water temperature adjustment program table.

[0118] In addition to directly calculating the adjustment time from the start of water temperature adjustment until the water temperature in the tub reaches the preset target temperature, as mentioned above, to achieve control over the adjustment time and set temperature, the water temperature adjustment slope can also be calculated. That is, in this embodiment, the washing parameters also include the water temperature adjustment rate. For example... Figure 6 As shown, the specific steps include:

[0119] S306. Calculate the water temperature regulation rate at which the water temperature in the tank reaches the preset target temperature based on the initial water temperature, the preset target temperature, and the timing results.

[0120] S307. Store and update the ambient temperature, clothing weight, target water intake, initial water temperature for temperature regulation, target regulation time, and water temperature regulation rate to form a water temperature regulation program table.

[0121] To achieve precise control over the adjustment time and set temperature, the slope of the water temperature adjustment in segmented intervals can also be calculated. For example... Figure 7 As shown, the water temperature regulation rate at which the water temperature in the tank reaches the preset target temperature, calculated using the initial water temperature, the preset target temperature, and the timing results, includes the following steps:

[0122] S311. Obtain the initial water temperature for water temperature adjustment; for example, when directly entering the subsequent washing program from the water inlet stage, the water temperature corresponding to the ambient temperature at the beginning of the washing program is the initial water temperature for water temperature adjustment; when the user selects to change from hot water wash to cold water wash, the initial water temperature for water temperature adjustment is the latest water temperature collected in the washing device tub before water temperature adjustment.

[0123] S312. Calculate the adjustment time;

[0124] S313. When the water temperature in the tank rises / falls by a preset temperature, the water temperature adjustment rate is calculated using the preset temperature and adjustment time, stored, the adjustment time is reset to zero and recalculated, and the initial water temperature for water temperature adjustment is updated. For example, the preset temperature can be set to 5℃. When the water enters the warm water wash directly from the water inlet stage, the water temperature corresponding to the ambient temperature is the initial water temperature for water temperature adjustment. When the water temperature in the tank rises by 5℃, the first water temperature adjustment rate is calculated using the preset temperature of 5℃ and adjustment time, stored, the adjustment time is reset to zero and recalculated, and the initial water temperature for water temperature adjustment is updated to the corresponding ambient temperature + 5℃. When the water temperature in the tank rises by another 5℃ from the corresponding ambient temperature + 5℃, the second water temperature adjustment rate is calculated using the preset temperature of 5℃ and adjustment time, stored, the adjustment time is reset to zero and recalculated, and the initial water temperature for water temperature adjustment is updated to the corresponding ambient temperature + 10℃, and so on, until the water temperature in the tank reaches the preset target temperature.

[0125] S314. When the water temperature in the tank reaches the preset target temperature, if the temperature rise / fall is less than the preset temperature, calculate the water temperature adjustment rate based on the temperature rise / fall. That is, when the water temperature in the tank reaches the preset target temperature, if the temperature rise / fall is less than 5℃, calculate the water temperature adjustment rate based on the temperature rise / fall. For example, if the temperature rise / fall is 3℃, calculate the water temperature adjustment rate for the last stage based on the temperature rise / fall of 3℃ and the adjustment time, and store the water temperature adjustment rate for the last stage.

[0126] S4. Adjust the water temperature using the water temperature regulating device according to the target adjustment time.

[0127] In this embodiment, the target adjustment time of the water temperature regulating device is determined according to the water temperature required by the washing device. The adjustment time of the water temperature regulating device is controlled to be the target adjustment time, so as to achieve the same water temperature regulation effect as when the water temperature sensor is not faulty, thereby improving the user experience and reducing or avoiding high after-sales maintenance costs.

[0128] In this embodiment, when the water temperature sensor malfunctions, the machine does not need to be shut down immediately; the user can still continue using the washing device. In this case, the required water temperature for the washing device is first determined. Then, based on the required water temperature, the target adjustment time for the water temperature regulator is determined. Finally, the water temperature regulator is controlled to begin adjusting, and the adjustment time is the target adjustment time. In other words, this embodiment controls the water temperature by using the water temperature sensor's adjustment time when the water temperature sensor malfunctions, ensuring normal water temperature control of the washing device without replacing the main control board, thus reducing costs.

[0129] In this embodiment, the water temperature regulating device of the washing apparatus includes, but is not limited to, an electric heater, a heat pump water temperature regulating device, and an inlet valve. When an electric heater or a heat pump water temperature regulating device is used, the adjustment time of the water temperature regulating device in the washing apparatus is also affected by the output power of the water temperature regulating device. Generally, the higher the output power of the water temperature regulating device, the shorter the adjustment time. This is because the higher the output power of the electric heater or heat pump water temperature regulating device, the more energy is generated during the heating / heat dissipation / cooling process, and the faster the water temperature can be adjusted. When an inlet valve is used, the adjustment time of the water temperature regulating device in the washing apparatus is also affected by the current inlet water pressure of the inlet valve. Generally, the higher the water pressure in the inlet valve, the shorter the adjustment time.

[0130] In order to ensure that the actual adjustment time is sufficient for the water temperature regulator to adjust the water temperature in the washing tub to the required temperature when the power supply voltage of the electric heater or heat pump water temperature regulator is insufficient, or when the water pressure of the inlet valve is insufficient, this embodiment also adjusts the aforementioned target adjustment time. For example... Figure 9 As shown, it also includes the following steps:

[0131] S5. Obtain the current operating parameters and preset operating parameters of the water temperature regulating device; wherein, the current operating parameters include the current power supply voltage and the current inlet water pressure, and the preset operating parameters include the rated voltage and the preset standard water pressure;

[0132] When using electric heaters or heat pump-type water temperature control devices, the rated voltage of the device directly affects its power and performance. Generally, the higher the rated voltage, the greater the power of the device, resulting in faster temperature adjustment and a shorter adjustment time. However, in practical applications, due to power fluctuations and device losses, the output power may vary, potentially causing the temperature adjustment effect to fall short of the theoretical target, reducing the adjustment speed, and lengthening the adjustment time.

[0133] When using an inlet valve, the preset standard water pressure of the water temperature regulator directly affects its power and performance. Generally, the higher the preset standard water pressure, the larger the water inlet volume, resulting in faster temperature regulation and a shorter adjustment time. However, in practical applications, due to factors such as inlet water pressure, the water inlet volume may fluctuate, potentially causing the temperature regulation effect to fall short of the theoretical target, reducing the temperature regulation speed, and lengthening the adjustment time.

[0134] S6. Calculate the actual adjustment time of the water temperature regulating device using the current working parameters, preset working parameters, and target adjustment time;

[0135] When using electric heaters or heat pump-type water temperature regulating devices, the actual regulating time of the water temperature regulating device is calculated using the power supply voltage, rated voltage, and target regulating time.

[0136] When an inlet valve is used, the actual adjustment time of the water temperature regulating device is calculated based on the inlet water pressure, the preset standard water pressure, and the target adjustment time.

[0137] S7. Adjust the water temperature using the water temperature regulating device according to the actual adjustment time.

[0138] It should be noted that if the water temperature sensor is functioning normally, the water temperature regulating device will be controlled according to the conventional water temperature control method. This means the water temperature sensor is used to detect the water temperature, and the device's operation is controlled by whether the detected water temperature reaches the preset target temperature. For example... Figure 10 As shown, it also includes the following steps:

[0139] S8. If the sensor used to detect the water temperature of the washing device is normal, control the water temperature regulating device to regulate the water temperature.

[0140] S9. The water temperature inside the tank is collected in real time by a water temperature sensor and timed until the water temperature inside the tank reaches the preset target temperature.

[0141] S10. Calculate the water temperature adjustment rate at which the water temperature in the tank reaches the preset target temperature based on the initial water temperature, the preset target temperature, and the timing results.

[0142] S11, End water temperature control.

[0143] To achieve precise control of the adjustment time and set temperature when the water temperature sensor is faulty, the water temperature adjustment slope of segmented intervals under normal conditions can be calculated. When the water temperature sensor fails, the main control board reads the water temperature adjustment slope of segmented intervals under normal conditions from the memory to achieve precise control of the adjustment time and set temperature under faulty conditions.

[0144] like Figure 11 As shown, the water temperature regulation rate at which the water temperature in the tank reaches the preset target temperature, calculated using the initial water temperature, the preset target temperature, and the timing results, includes the following steps:

[0145] S101, Obtain the initial water temperature for water temperature regulation;

[0146] S102, Calculate the adjustment time;

[0147] S103. Determine whether the water temperature inside the tank has risen / fallen to the preset temperature;

[0148] S104. When the water temperature in the tank rises / falls by a preset temperature, the water temperature adjustment rate is calculated based on the preset temperature and adjustment time.

[0149] S105. Store the water temperature adjustment rate, clear the adjustment time to zero and recalculate, and update the initial water temperature for water temperature adjustment;

[0150] For example, when directly entering the warm water wash from the water inlet stage, the water temperature corresponding to the ambient temperature is the initial water temperature for water temperature regulation. The preset temperature can be set to 5℃. When the warm water wash begins and the water temperature in the tub is detected to rise by 5℃, the first water temperature regulation rate is calculated using the preset temperature of 5℃ and the regulation time, and stored. The regulation time is reset to zero and recalculated, and the initial water temperature for water temperature regulation is updated to the corresponding ambient temperature + 5℃. When the water temperature in the tub is detected to rise by another 5℃ based on the corresponding ambient temperature + 5℃, the second water temperature regulation rate is calculated using the preset temperature of 5℃ and the regulation time, and stored. The regulation time is reset to zero and recalculated, and the initial water temperature for water temperature regulation is updated to the corresponding ambient temperature + 10℃, and so on, until the water temperature in the tub reaches the preset target temperature.

[0151] S106. Determine whether the water temperature in the tank has reached the preset target temperature; if the water temperature in the tank has not reached the preset target temperature, return to step S9 to continue collecting the water temperature in the tank, and then calculate the next water temperature adjustment rate.

[0152] S107. When the water temperature in the tank reaches the preset target temperature, if the temperature rise / fall is less than the preset temperature, calculate the water temperature adjustment rate based on the temperature rise / fall. For example, when the water temperature in the tank reaches the preset target temperature, if the temperature rise is less than 5°C, calculate the water temperature adjustment rate based on the temperature rise. Assuming the temperature rise is 3°C, calculate the water temperature adjustment rate for the last stage based on the temperature rise of 3°C and the adjustment time, and store the water temperature adjustment rate for the last stage.

[0153] This embodiment utilizes an intelligent water temperature control algorithm embedded in the main control board of the washing device. Based on normal washing parameters in the user's home environment—namely, ambient temperature, initial water temperature adjustment, weight of laundry, water volume, and the rate of water temperature adjustment within the drum—it learns its own performance. When the water temperature sensor malfunctions, it can adjust the water temperature according to changes in season, power supply voltage / inlet water pressure, initial water temperature adjustment, and the amount of laundry. It still performs the water temperature adjustment function of the device, achieving precise water temperature control and the same effect as when the sensor is functioning correctly. This improves the user experience, reduces or avoids heavy after-sales repair costs, and solves the problem of the washing device being unable to control water temperature when the sensor is faulty.

[0154] Example 2

[0155] A washing apparatus is provided, employing the method described above. For a detailed description of the method, please refer to the corresponding descriptions in the above method embodiments; further details will not be repeated here.

[0156] The washing device provided in this embodiment, upon entering the water temperature control stage, first determines whether the sensor used to detect the water temperature is faulty. If the sensor is faulty, the required water temperature for the washing device is determined. The target adjustment time for the water temperature regulating device in the washing device is then determined based on the required water temperature. The water temperature regulating device is then controlled to adjust the water temperature according to the target adjustment time. This embodiment utilizes an intelligent water temperature control algorithm embedded in the main control board of the washing device, and learns from the washing parameters under normal conditions in the user's home, namely, ambient temperature, initial water temperature, weight of laundry, water intake, and the rate of water temperature adjustment in the drum. When the water temperature sensor malfunctions, the intelligent water temperature control algorithm can be invoked to adjust the water temperature based on changes in season, power supply voltage, initial water temperature, and the amount of laundry. The water temperature regulating device still performs its function, achieving precise water temperature control and the same effect as when the water temperature sensor is functioning correctly. This improves the user experience, reduces or avoids heavy after-sales repair costs, and solves the problem of the washing device being unable to control the water temperature when the water temperature sensor is faulty.

[0157] Example 3

[0158] An electronic device, such as Figure 12 As shown, it includes: a memory storing program code; and a processor connected to the memory, which, when executed by the processor, implements a water temperature control method for a washing device. A detailed description of the method can be found in the corresponding description in the above method embodiments, and will not be repeated here.

[0159] Example 4

[0160] A computer-readable storage medium, such as Figure 13 As shown, it stores program instructions, which, when executed, implement a water temperature control method for a washing device. For a detailed description of the method, please refer to the corresponding description in the above method embodiments; it will not be repeated here.

[0161] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0162] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0163] The above are merely embodiments of this specification and are not intended to limit the scope of one or more embodiments of this specification. Various modifications and variations can be made to one or more embodiments of this specification by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of one or more embodiments of this specification should be included within the scope of the claims of one or more embodiments of this specification.

Claims

1. A method for controlling water temperature in a washing device, characterized in that, Includes the following steps: When a water temperature control command is received, it is determined whether the sensor used to detect the water temperature of the washing device is faulty. If the sensor used to detect the water temperature of the washing device malfunctions, then the required water temperature for the washing device is determined. The target adjustment time of the water temperature regulating device in the washing device is determined by the water temperature required by the washing device. The water temperature regulating device is controlled to regulate the water temperature according to the target adjustment time; Determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature includes the following steps: Get the current washing parameters; The target adjustment time is calculated using a water temperature adjustment program table based on the washing parameters and the water temperature required by the washing device; wherein the water temperature adjustment program table stores the correspondence between the washing parameters, the water temperature required by the washing device, and the target adjustment time; The construction of the water temperature regulation program table includes the following steps: Before the sensor used to detect the water temperature of the washing device malfunctions, the ambient temperature is collected and stored; Obtain the weight of the clothes in the washing machine drum, calculate the target water intake based on the weight of the clothes, and store the weight of the clothes and the corresponding target water intake. The water temperature inside the washing device tub before water temperature adjustment is collected, stored, and marked as the initial water temperature for water temperature adjustment; After entering the water temperature adjustment phase, the water temperature inside the tank is collected and timed in real time until the water temperature inside the tank reaches the preset target temperature, thus obtaining the target adjustment time. The ambient temperature, clothing weight, target water intake, initial water temperature for water temperature adjustment, and target adjustment time are stored and updated to form a water temperature adjustment program table. The construction of the water temperature regulation program table also includes the following steps: The water temperature inside the tub is sampled during the current working program of the washing device, and the water temperature change curve inside the tub is calculated. If the calculated slope is within the preset range, it is determined to be normal operation, and the latest water temperature in the tub is obtained or the average water temperature in the tub of the current working program of the washing device is calculated. If the latest or average water temperature has not been stored, then store and mark it as the initial water temperature for water temperature adjustment; If the calculated slope is not within the preset range, the initial water temperature for updating the water temperature adjustment will be abandoned, and the system will wait for the water temperature control command.

2. The water temperature control method for a washing device as described in claim 1, characterized in that: The water temperature control command is either a command to increase the water temperature or a command to decrease the water temperature.

3. The water temperature control method for a washing device as described in claim 2, characterized in that: Determining the required water temperature for the washing device includes the following steps: Get the current washing mode of the washing device; The preset water temperature threshold corresponding to the washing stage in the current washing mode is used as the current required water temperature.

4. The water temperature control method for a washing device as described in claim 3, characterized in that: The washing stages are cold water washing, warm water washing, hot water washing, or high-temperature boiling washing.

5. A water temperature control method for a washing device as described in any one of claims 1 to 4, characterized in that: Determining the target adjustment time of the water temperature regulating device in the washing device based on the required water temperature includes the following steps: Obtain the preset adjustment time corresponding to the water temperature required by the washing device; The preset adjustment time is used as the target adjustment time.

6. The water temperature control method for a washing device as described in claim 1, characterized in that: The washing parameters include ambient temperature, initial water temperature for water temperature adjustment, weight of clothes, and target water intake.

7. The water temperature control method for a washing device as described in claim 1, characterized in that: The washing parameters also include the water temperature adjustment rate; The construction of the water temperature regulation program table also includes the following steps: The rate at which the water temperature in the tank reaches the preset target temperature is calculated using the initial water temperature, the preset target temperature, and the timing results. The ambient temperature, clothing weight, target water intake, initial water temperature for temperature regulation, target regulation time, and water temperature regulation rate are stored and updated to form a water temperature regulation program table.

8. The water temperature control method for a washing device as described in claim 2, characterized in that: It also includes the following steps: Obtain the current operating parameters and preset operating parameters of the water temperature regulating device; wherein, the current operating parameters include the current power supply voltage and the current inlet water pressure, and the preset operating parameters include the rated voltage and the preset standard water pressure; The actual adjustment time of the water temperature regulating device is calculated using the current operating parameters, preset operating parameters, and target adjustment time. The water temperature is adjusted by controlling the water temperature regulating device according to the actual adjustment time.

9. The water temperature control method for a washing device as described in claim 1, characterized in that, The method also includes the following steps: if the sensor used to detect the water temperature of the washing device is normal, then control the water temperature regulating device to regulate the water temperature, collect the water temperature in the tub in real time and keep track of the time until the water temperature in the tub reaches the preset target temperature, and calculate the water temperature regulation rate at which the water temperature in the tub reaches the preset target temperature based on the initial water temperature, the preset target temperature and the timekeeping result.

10. A water temperature control method for a washing device as described in claim 7 or 9, characterized in that: The process of calculating the water temperature adjustment rate at which the water in the tank reaches the preset target temperature based on the initial water temperature, the preset target temperature, and the timing results includes the following steps: Obtain the initial water temperature for water temperature regulation; Calculate the adjustment time; When the water temperature in the tank rises or falls by a preset temperature, the water temperature adjustment rate is calculated based on the preset temperature and adjustment time, the water temperature adjustment rate is stored, the adjustment time is cleared to zero and recalculated, and the initial water temperature for the water temperature adjustment is updated. When the water temperature in the tank reaches the preset target temperature, and the temperature rise / fall is less than the preset temperature, the water temperature adjustment rate is calculated based on the temperature rise / fall.

11. A washing device, characterized in that: The method described in any one of claims 1 to 10 is applied.

12. An electronic device, characterized in that, include: A memory that stores program code; A processor connected to the memory, which, when the program code is executed by the processor, implements the method as described in any one of claims 1 to 10.

13. A computer-readable storage medium, characterized in that, It stores program instructions that, when executed, implement the method as described in any one of claims 1 to 10.

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