Dish washing machine control method and device, electronic equipment and storage medium

Abstract

The invention discloses a control method and device of a dish washing machine, electronic equipment and a storage medium, and relates to the technical field of intelligent kitchen ware. The method comprises the following steps: when to-be-cleaned tableware is pre-cleaned, controlling an ultraviolet spectrum detection unit to monitor a real-time value of the total organic carbon content in washing water; according to the real-time value of the total organic carbon content, the smudginess grade of the tableware to be cleaned is determined; determining washing modes of the dish-washing machine in a main washing stage and a rinsing stage according to the smudginess grade; wherein the washing modes at least comprise main washing parameters and rinsing parameters, and the main washing parameters and the rinsing parameters of different washing modes are different; the tableware to be cleaned is subjected to main washing according to the main washing parameters, and the tableware to be cleaned is rinsed according to the rinsing parameters. According to the scheme, the novel dish washing machine with the built-in ultraviolet spectrum detection unit is provided, automatic quantification of dirt is achieved through the ultraviolet spectrum detection unit, and the dish washing machine is suitable for different tableware dirt scenes; and the whole process from pre-washing to rinsing is automatic, so that the tableware cleaning efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent kitchen utensils, and in particular to a control method and device for a dishwasher, an electronic device, and a storage medium. BACKGROUND

[0002] With the improvement of the use level of household appliances, people tend to be automated and intelligent in the use of household appliances, and make the kitchen use more comfortable and humanized. Dishwashers have been widely introduced in families.

[0003] Most of the dishwashers on the market currently use a fixed time program for washing, or only use a normal turbidity sensor to measure the degree of cleanliness of tableware by detecting the light transmittance (turbidity) of the washing water. However, this method has certain deficiencies: Chinese dishes are generally fried, cooked, and boiled, and use more oil, especially in some areas where heavy oil and spicy food is preferred, and conventional turbidity detection cannot meet the requirements of intelligent washing in various oil pollution scenarios. Therefore, a new dishwasher and its control method are needed. SUMMARY

[0004] The present application provides a control method and device for a dishwasher, an electronic device, a storage medium, and a computer program product.

[0005] According to an aspect of the present application, a control method for a dishwasher is provided, which is applied to a main control unit of the dishwasher, and the dishwasher further has a built-in ultraviolet spectrum detection unit. The method comprises:

[0006] When pre-washing the tableware to be cleaned, the ultraviolet spectrum detection unit is controlled to monitor the real-time value of the total organic carbon content in the washing water;

[0007] According to the real-time value of the total organic carbon content, the dirt level of the tableware to be cleaned is determined;

[0008] According to the dirt level, the washing mode of the dishwasher in the main washing stage and the rinsing stage is determined; wherein the washing mode at least includes main washing parameters and rinsing parameters, and the main washing parameters and the rinsing parameters of different washing modes are different;

[0009] The tableware to be cleaned is subjected to main washing according to the main washing parameters, and is subjected to rinsing according to the rinsing parameters.

[0010] According to another aspect of the present application, a control device for a dishwasher is provided, which is configured in the main control unit of the dishwasher, and the dishwasher further has a built-in ultraviolet spectrum detection unit. The device comprises:

[0011] The first detection module is configured to control the ultraviolet spectrum detection unit to monitor the real-time value of the total organic carbon content in the washing water when pre-washing the tableware to be cleaned;

[0012] A dirtiness level determination module is configured to determine a dirtiness level of the to-be-cleaned tableware according to the real-time value of the total organic carbon content;

[0013] A washing mode determination module is configured to determine a washing mode of the dishwasher in the main washing stage and the rinsing stage according to the dirtiness level; wherein the washing mode at least includes a main washing parameter and a rinsing parameter, and the main washing parameter and the rinsing parameter of different washing modes are different;

[0014] A main washing and rinsing control module is configured to perform main washing on the to-be-cleaned tableware according to the main washing parameter, and perform rinsing on the to-be-cleaned tableware according to the rinsing parameter.

[0015] According to another aspect of the present application, an electronic device is provided, which comprises:

[0016] at least one processor; and

[0017] a memory connected with the at least one processor in communication; wherein,

[0018] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the control method of the dishwasher according to the embodiments of the present application.

[0019] According to another aspect of the present application, a computer readable storage medium is provided, which stores computer instructions for enabling a processor to execute the control method of the dishwasher according to the embodiments of the present application when the computer instructions are executed by the processor.

[0020] According to another aspect of the present application, a computer program product is provided, which comprises a computer program for implementing the steps of the above method when the computer program is executed by a processor.

[0021] The technical solution of the embodiments of the present application provides a new dishwasher with a built-in ultraviolet spectrum detection unit, which realizes automatic quantification of dirtiness through the ultraviolet spectrum detection unit and adapts to different tableware dirtiness scenarios; and the whole process from pre-washing to rinsing is automated, thereby improving cleaning efficiency.

[0022] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0024] Figure 1 is a flowchart of a control method of a dishwasher provided by an embodiment of the present application;

[0025] Figure 2 is a flowchart of another control method of a dishwasher provided by an embodiment of the present application;

[0026] Figure 3 is a structural diagram of a control device of a dishwasher provided by an embodiment of the present application;

[0027] Figure 4 is a structural diagram of an electronic device implementing a control method of a dishwasher according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should be within the scope of protection of the present application.

[0029] Embodiment one

[0030] Figure 1 A flowchart of a control method of a dishwasher provided by an embodiment of the present application, the present embodiment can be applied to the scene of cleaning tableware by using a dishwasher. The method can be executed by a control device of the dishwasher. The control device of the dishwasher can be realized in the form of hardware and / or software. The control device of the dishwasher can be configured in an electronic device, for example, in a dishwasher.

[0031] In order to facilitate understanding of the present application, first, the structure of the dishwasher involved will be introduced. The dishwasher includes a main control unit, a detection module, an execution mechanism, and a human-computer interaction module.

[0032] The main control unit is the control core of the entire dishwasher, integrating processors, memories, interface circuits, etc. Its functions include: 1. receiving real-time data from the detection module (such as total organic carbon content, conductivity value) and user instructions (such as starting washing); 2. running preset algorithms (such as dirt level determination, washing parameter matching, detergent dosage calculation) to generate control instructions; 3. sending instructions to the execution module (such as water pump, heater) to coordinate the timing of each component; storing historical data (such as sensor performance records, washing parameter logs) to support self-maintenance and optimization decisions.

[0033] The detection module is responsible for environmental and state monitoring, including a water quality multi-parameter detection unit (core) and auxiliary sensors (such as temperature sensors, water level sensors), which are directly integrated into the circulating water circuit. The water quality multi-parameter detection unit at least includes an ultraviolet spectrum detection unit and a conductivity detection unit.

[0034] The composition of the ultraviolet spectrum detection unit at least includes a 254nm UV-LED light source and a photodetector. Its function is to indirectly monitor the total organic carbon content (which is the total amount of organic pollutants such as oil and protein on the surface of tableware) by measuring the absorbance of 254nm ultraviolet light by washing water, providing data for dirt level determination and main washing termination judgment.

[0035] The composition of the conductivity detection unit at least includes a pair of metal electrodes (such as titanium electrodes) and a signal processing circuit. Its function is to reflect the total dissolved solids (such as detergent residues and inorganic salts) content in the water by measuring the conductivity of the washing water, which is used to determine whether the detergent is completely removed during the rinsing stage.

[0036] Auxiliary sensors include temperature sensors for monitoring washing water temperature to ensure that main washing / rinsing temperature meets parameter requirements, water level sensors for controlling water inflow to avoid water shortage or overflow, and turbidity sensors (which can share the optical path with the ultraviolet spectrum detection unit) for auxiliary monitoring of suspended particulate matter concentration to supplement dirt determination.

[0037] The execution mechanism is responsible for physical action execution, including water control components, heating components, detergent dispensing components, etc., which receive instructions from the main control unit to complete specific operations. The water control components include: a water inlet valve for receiving instructions to open / close and controlling tap water injection into the washing cavity; a drain valve for draining the washing water; a circulating water pump for driving the washing water to circulate in the cavity to flush the surface of tableware. The heating components include: a heater that receives instructions to heat the washing water, increase the water temperature, and enhance the activity of the detergent and the sterilization effect. The detergent dispensing component is used to accurately inject detergent (such as dishwasher salt, dish brightener) into the washing water to avoid dosage errors caused by manual dispensing.

[0038] Human-computer interaction module, responsible for user interaction, including: display screen (such as LCD / LED screen), used to display washing progress, fault prompt, etc.; Wi-Fi / Bluetooth module, used to connect user mobile phone App, realize remote control, state push, maintenance reminder.

[0039] On the basis of the above, Figure 1 The control method of the dishwasher suitable for the dishwasher main control unit comprises the following steps:

[0040] S101、In the pre-washing of the dishes to be washed, the ultraviolet spectrum detection unit is controlled to monitor the real-time value of the total organic carbon content in the washing water.

[0041] Pre-washing refers to the preliminary cleaning stage before main washing, through the flushing of loose food residues (such as noodles, rice debris) on the surface of the dishes by the circulating water flow, part of the pollutants are dissolved in the water, providing data basis for subsequent dirt judgment. The ultraviolet spectrum detection unit is the core detection hardware built-in dishwasher (integrated in the circulating water circuit, containing 254nm UV-LED light source and detector), by measuring the absorbance of water sample to 254nm ultraviolet light, indirectly reflecting the total organic carbon content (total amount index of organic pollutants such as oil and protein). The real-time value of the total organic carbon content is the dynamic data (unit such as ppm) reflecting the concentration of organic pollutants in the washing water, which can be a numerical sequence changing with the pre-washing time.

[0042] In some embodiments, after the dishes to be washed are put into the dishwasher, the main control unit sends water inlet instruction to the water inlet valve of the actuator, the water inlet valve opens the water injection, when the dishwasher flowmeter detects that the water quantity reaches the preset value, feedbacks the water quantity standard signal to the main control unit, the water inlet valve is closed, and the water inlet is completed. After starting the pre-washing program, the main control unit controls the water pump to start, so that the washing water in the pre-washing stage flows in the circulating water circuit; at the same time, the main control unit sends the start monitoring instruction to the ultraviolet spectrum detection unit, so that the 254nm UV-LED light source of the ultraviolet spectrum detection unit emits ultraviolet light to penetrate the washing water, and the detector receives the intensity of the penetrated light; according to Lambert-Beer law, the absorbance is positively correlated with the total organic carbon content in the water, and the absorbance is converted into the real-time value of the total organic carbon content by the built-in algorithm. The ultraviolet spectrum detection unit transmits the real-time value of the total organic carbon content to the main control unit in real time through the circuit, and the main control unit stores the data and uses it for subsequent analysis.

[0043] It can be understood that this step calculates the real-time value of the total organic carbon content to objectively reflect the dirt degree, and realizes the quantification of the concentration of organic pollutants; and the pre-washing stage is monitored synchronously, which ensures that the dirt data can be obtained before main washing, and reserves adjustment time for subsequent mode matching.

[0044] S102, determine the dirt level of the to-be-cleaned tableware according to the real-time value of the total organic carbon content.

[0045] The dirt level is a classification of the dirt degree of tableware divided according to the value characteristics of the total organic carbon content (including four levels of slight oil stain, moderate oil stain, heavy oil stain and extremely heavy oil stain), and different dirt degrees correspond to different catering scenes. For example, slight oil stain can correspond to the catering scene of noodles and clear soup; moderate oil stain can correspond to the catering scene of stir-fried dishes and soybean milk; heavy oil stain corresponds to the catering scene of marinated food, meat oil stir-fried dishes and thick soup; and extremely heavy oil stain corresponds to the catering scene of beef tallow hot pot, heavy oil and spicy, and freshly squeezed juice. Optionally, each dirt level corresponds to a value interval of the total organic carbon content.

[0046] In an optional implementation, the main control unit can analyze the real-time value of the total organic carbon content and extract key features therefrom; the key features can include the peak value, change amplitude and rising speed of the total organic carbon content; the peak value refers to the maximum value of the total organic carbon content in the pre-washing stage, reflecting the total amount of pollutants; and the rising speed refers to the increment of the value of the total organic carbon content per unit time, reflecting the dissolution speed of pollutants, such as rising from 100 ppm to 1000 ppm in 5 minutes, indicating that the dirt is easy to dissolve. Further, the dirt level of the to-be-cleaned tableware can be determined according to whether the peak value of the total organic carbon content is within the value interval of the total organic carbon content corresponding to the dirt level.

[0047] S103, determine the washing mode of the dishwasher in the main washing stage and the rinsing stage according to the dirt level.

[0048] The washing mode at least includes main washing parameters and rinsing parameters, and the main washing parameters and the rinsing parameters of different washing modes are different. The main washing parameters refer to the key control indicators in the main washing stage, which can include main washing time, heating temperature, water flow intensity, etc. The rinsing parameters refer to the key control indicators in the rinsing stage, including the number of rinsing, single rinsing water volume, rinsing water flow pressure, etc.

[0049] In specific implementation, the main control unit pre-stores a mapping table of the dirt level and the washing mode parameter package in the memory, for example, the washing mode parameter package corresponding to slight oil stain is: main washing parameter (for example, 10 minutes, 50℃) + rinsing parameter (for example, 1 time, 5L); and the washing mode parameter package corresponding to extremely heavy oil stain is: main washing parameter (for example, 50 minutes, 85℃) + rinsing parameter (for example, 5 times, 10L). In this way, the main control unit determines the main washing parameters and the rinsing parameters of this washing according to the dirt level output by S102, and calls the corresponding parameter package in the mapping table.

[0050] It can be understood that light soiling matches low-intensity parameters (short time, low temperature, less rinsing), reducing water / electricity / detergent waste; heavy / severe soiling matches high-intensity parameters (long time, high temperature, more rinsing), ensuring that stubborn contaminants are thoroughly removed.

[0051] After the pre-washing is completed, the active unit controls the drain valve to drain the sewage and controls the water inlet valve to re-inject clean water so as to perform main washing and rinsing according to S104.

[0052] S104, performing main washing on the to-be-cleaned tableware according to main washing parameters and performing rinsing on the to-be-cleaned tableware according to rinsing parameters.

[0053] Among them, the main washing refers to a core cleaning stage of decomposing stubborn contaminants (such as oil and carbon residues) on the surface of the tableware through a high-temperature water flow (containing detergent); and the rinsing refers to a stage of removing residual detergent and trace contaminants after the main washing through clean water flushing.

[0054] In some embodiments, performing main washing on the to-be-cleaned tableware according to main washing parameters includes steps S1-S2:

[0055] S1, controlling the execution structure of the dishwasher to perform main washing on the to-be-cleaned tableware according to main washing parameters, and determining a variation curve of total organic carbon content according to a real-time value of the total organic carbon content in the washing water monitored by the ultraviolet spectrum detection unit in real time.

[0056] And the specific process of controlling the execution structure of the dishwasher to perform main washing on the to-be-cleaned tableware according to main washing parameters can include: the main control unit sends an instruction to the execution mechanism to control the heater to start, heat the water temperature to the temperature in the main washing parameters (such as 65°C), control the water pump to operate at a set power to drive a high-pressure water flow to flush the tableware through the spray arm, and control the detergent dispensing device to dispense detergent according to the dose.

[0057] In addition, when starting the main washing, the main control unit controls the real-time value of the total organic carbon content in the washing water monitored by the ultraviolet spectrum detection unit in real time, and determines a variation curve of the total organic carbon content according to the real-time value of the total organic carbon content in the washing water monitored. Among them, the variation curve of the total organic carbon content is a continuous curve drawn with time as the horizontal axis and the value of the total organic carbon content as the vertical axis, reflecting the change trend of the concentration of organic contaminants in the main washing process. When drawing the variation curve of the total organic carbon content, the variation curve can be analyzed, for example, the curve slope of the variation curve is calculated every pre-set time length (for example, 3 seconds); the curve slope refers to the degree of inclination of the variation curve at a certain time, and the absolute value of the slope is greater, the faster the speed of removing contaminants; the slope tends to 0, indicating that the value of the total organic carbon content is stable (the contaminants are basically removed).

[0058] On the basis, the control of the detergent dispensing device according to the dose includes: in the initial stage of the main washing of the to-be-cleaned tableware according to the main washing parameter (for example, the first N minutes of the main washing), according to the value of the total organic carbon content and the falling speed of the total organic carbon content, the detergent dispensing amount in the current washing mode is calculated and intelligently dispensed. The value of the total organic carbon content in the initial stage of the main washing can reflect the total amount of organic pollutants released by the tableware into the water; the falling speed of the total organic carbon content refers to the falling amount of the total organic carbon content per unit time, which can reflect the natural decomposition of the organic pollutants or the water flow scouring effect under the action of no detergent / initial detergent (the slower the falling speed, the more stubborn the pollutants, and more detergent is needed). On this basis, the main control unit calculates the detergent dispensing amount according to the preset dose calculation algorithm, combines the value of the total organic carbon content, the falling speed of the total organic carbon content and the current washing mode, and controls the detergent dispensing device to dispense the detergent according to the dose.

[0059] After the detergent is dispensed, if the falling rate of the total organic carbon content within the preset time is lower than the preset threshold, it is determined that the dose of the currently dispensed detergent is insufficient, and the decomposition of the organic pollutants is too slow. At this time, the additional dose of the detergent needs to be calculated, and the detergent is supplemented according to the additional dose; or, after the current washing is completed, the user is prompted to increase the detergent dose next time through the man-machine interaction module built in the dishwasher, for example, the dishwasher display screen lights up to prompt the user, and the text information (such as the next washing needs to increase the detergent) is scrolled and displayed, or a pop-up window is pushed to the user's mobile phone App through the Wi-Fi module, and the current detergent dispensing data and the operation guide for increasing the detergent are attached.

[0060] S2, in response to the slope of the change curve of the total organic carbon content meeting the preset condition or the value of the total organic carbon content being less than the preset value, ending the main washing.

[0061] The preset condition can be that the slope of the change curve is less than a preset slope threshold. If the slope of the change curve of the total organic carbon content meets the preset condition or the value of the total organic carbon content is less than the preset value, it is determined that the organic pollutants have been basically removed, the main control unit sends a stop instruction to the execution structure to end the main washing, and sends a start instruction to the drain valve to drain the sewage. In addition, the main control unit can also record the time of the current main washing as a reference for subsequent optimization of washing parameters.

[0062] The dishwasher also has a built-in conductivity detection unit. Correspondingly, the rinsing of the to-be-cleaned tableware according to the rinsing parameter includes steps M1-M3:

[0063] M1, in response to the dishwasher injecting new water, the execution structure of the dishwasher is controlled to rinse the to-be-cleaned tableware according to the rinsing parameter.

[0064] After the sewage of the main washing stage is discharged, the main control unit controls the water inlet valve to be opened again, and new clean water (for rinsing) is injected, and the water quantity is controlled by the dishwasher flow meter; then the main control unit controls the water pump to start, drives the clean water to circulate and rinse, and the injection-water-rinsing-drainage process is repeated according to the number of the rinsing parameters.

[0065] M2, during the rinsing process, the conductivity detection unit controls the real-time monitoring of the conductivity value of the washing water.

[0066] M3, in response to the conductivity value decreasing and stabilizing at a preset clean water threshold, the rinsing is ended, and the drying stage is entered.

[0067] In the embodiment of the application, the automatic quantification of dirt is realized by the ultraviolet spectrum detection unit, replacing manual judgment and adapting to different tableware dirt scenarios; the washing parameters are matched based on the dirt level to avoid insufficient cleaning or resource waste caused by one-size-fits-all; the whole process from pre-washing to rinsing is automated, reducing user operation cost, and the cleaning efficiency is improved through dynamic parameter control.

[0068] Embodiment two

[0069] Figure 2 A flow chart of a control method of a dishwasher is provided for the embodiment of the application. Referring to Figure 2 , the method comprises the following steps:

[0070] S201, control the actuator of the dishwasher to inject clean water for washing the to-be-cleaned tableware into the dishwasher.

[0071] Optionally, after the main control unit receives the instruction of the user starting the washing, the opening injection instruction is preferentially sent to the water inlet valve in the actuator; after the water inlet valve is opened, the clean water is injected into the washing cavity through the pipeline, and the flow meter built-in in the dishwasher monitors the injected water quantity in real time, and feeds back the flow data to the main control unit; when the flow meter detects that the water quantity reaches a preset water quantity value, the main control unit sends a closing instruction to the water inlet valve to stop injection, and completes the injection of clean water.

[0072] It can be understood that this step provides a pure reference water body for the detection of S202 and the calibration of S203, avoiding the interference of impurities on the accuracy of the detection data.

[0073] S202, control the ultraviolet spectrum detection unit to detect the total organic carbon content of the clean water, and control the conductivity detection unit to detect the conductivity value of the clean water.

[0074] Optionally, the main control unit synchronously sends a start detection instruction to the ultraviolet spectrum detection unit and the conductivity detection unit of the dishwasher, so that the 254 nm UV-LED light source of the ultraviolet spectrum detection unit emits ultraviolet light to penetrate the clean water, the probe receives the transmitted light intensity, the absorbance is converted into total organic carbon content (unit: ppm) according to the Lambert-Beer law, and the data is transmitted to the main control unit; the metal electrode of the conductivity detection unit is immersed in the clean water, the conductivity of the water body is measured through the current conduction between the electrodes, and the conductivity value is directly output and synchronously fed back to the main control unit. The main control unit records two sets of detection data as the background reference value of S203 calibration.

[0075] S203, self-calibration of the ultraviolet spectrum detection unit according to the total organic carbon content of the clean water, and self-calibration of the conductivity detection unit according to the conductivity value of the clean water.

[0076] Among them, self-calibration refers to the process of automatically correcting the error of the sensor of the ultraviolet spectrum detection unit and the conductivity detection unit with the background detection value of pure clean water as the standard.

[0077] Self-calibration of the ultraviolet spectrum detection unit: the main control unit sets the total organic carbon content value of the clean water detected in S202 as the calibration reference threshold (for example, the detection value is 5 ppm); if the ultraviolet spectrum detection unit has zero drift, the default output total organic carbon content value is 8 ppm when detecting pure clean water, and the reference threshold will be automatically corrected to 5 ppm during the calibration process. The real-time detection value is subtracted by 5 ppm to reflect the real pollutant increment in subsequent detection (for example, 205 ppm is detected during washing, and the actual total organic carbon content increment is 200 ppm).

[0078] Self-calibration of the conductivity detection unit: the main control unit sets the conductivity value of the clean water detected in S202 as the calibration reference threshold (for example, the detection value is 80 μS / cm); if the electrode of the conductivity detection unit is aged, the output is 100 μS / cm when detecting pure clean water, and the deviation (100 μS / cm-80 μS / cm=20 μS / cm deviation) is automatically corrected during the calibration process. The real-time detection value is subtracted by 20 μS / cm as the real conductivity value in subsequent detection.

[0079] S204, when pre-washing the dishes to be washed, controlling the ultraviolet spectrum detection unit to monitor the real-time value of the total organic carbon content in the washing water.

[0080] S205, determining the dirt level of the dishes to be cleaned according to the real-time value of the total organic carbon content.

[0081] S206, determining the washing mode of the dishwasher in the main washing stage and the rinsing stage according to the dirt level. The washing mode at least includes the main washing parameter and the rinsing parameter, and the main washing parameter and the rinsing parameter of different washing modes are different.

[0082] S207, main washing the to-be-cleaned tableware according to the main washing parameter, and rinsing the to-be-cleaned tableware according to the rinsing parameter.

[0083] The specific implementation process of steps S204-S207 can be referred to the description of the above-mentioned embodiments, which will not be described here.

[0084] S208, determining whether to perform self-cleaning on the ultraviolet spectrum detection unit and the conductivity detection unit according to historical detection data of the ultraviolet spectrum detection unit and the conductivity detection unit in a period of time.

[0085] The historical detection data can include the clean water background value (total organic carbon content, conductivity) detected each time S202 is detected, and the response parameter (such as detection response time, signal strength) of the sensor of the detection unit, and the recording period covers multiple washes. Self-cleaning refers to an automatic maintenance action of the dishwasher through a preset program, using clean water or special cleaning water to flush the sensor surface to remove attached dirt (such as scale, oil stains), and restore the detection accuracy of the sensor.

[0086] In specific implementation, the host control unit extracts historical detection data periodically (such as after each wash is completed), and compares the parameter changes under the same conditions: for example, the total organic carbon content background value of the clean water detected S202 one month ago is stable at 5ppm, and the current detection is 15ppm (the sensor surface is scaled, causing abnormal absorbance); or the response time of the conductivity detection is extended from 1 second to 3 seconds (the electrode is attached with oil stains). Set an abnormal judgment threshold (such as a total organic carbon content background value deviation of more than 30%, a response time extension of more than 100%), if the historical data meets the threshold condition, it is determined that the sensor signal is abnormally attenuated. If it is determined that the signal is abnormally attenuated, the host control unit preferentially starts the self-cleaning program, controls the water inlet valve to inject a small amount of clean water, and drives the circulating water pump to drive the water flow to flush the flow cell where the sensor is located at a high speed, and then drains the water after 5-10 minutes to remove the scale and oil stains on the surface of the sensor. Further, after self-cleaning, steps S201-S203 can be repeated, if the sensor data returns to normal, the self-cleaning is completed; if the data is still abnormal, the host control unit prompts the user to manually clean the sensor in the ultraviolet spectrum detection unit and the conductivity detection unit through the man-machine interaction module.

[0087] In the embodiments of the present application, through steps S201-S203, the sensor self-error of the detection unit and the initial water quality difference can be eliminated, the data accuracy of real-time monitoring of the total organic carbon content and the conductivity value in the subsequent process can be ensured, the problems such as dirty misjudgment, excessive / insufficient detergent dispensing caused by data distortion can be avoided; in addition, the sensor accuracy is actively maintained, the detection deviation caused by sensor dirt is avoided, and the stable operation of the entire intelligent washing system is ensured.

[0088] Embodiment three

[0089] Figure 3 A structural schematic diagram of a control device of a dishwasher is provided for an embodiment of the present application. The device is configured in a master control unit of the dishwasher, and the dishwasher further has a built-in ultraviolet spectrum detection unit. The device can execute any control method of the dishwasher of the present application. As shown in the figure, the control device of the dishwasher comprises: Figure 3

[0090] A first detection module 301 is configured to control the ultraviolet spectrum detection unit to monitor a real-time value of total organic carbon content in washing water when pre-washing the dishes to be cleaned;

[0091] A dirtiness level determination module 302 is configured to determine the dirtiness level of the dishes to be cleaned according to the real-time value of total organic carbon content;

[0092] A washing mode determination module 303 is configured to determine the washing mode of the dishwasher in the main washing stage and the rinsing stage according to the dirtiness level; wherein the washing mode at least includes main washing parameters and rinsing parameters, and the main washing parameters and the rinsing parameters of different washing modes are different;

[0093] A main washing and rinsing control module 304 is configured to perform main washing of the dishes to be cleaned according to the main washing parameters, and perform rinsing of the dishes to be cleaned according to the rinsing parameters.

[0094] In some embodiments, in terms of performing main washing of the dishes to be cleaned according to the main washing parameters, the main washing and rinsing control module 304 is specifically configured to:

[0095] control the execution structure of the dishwasher to perform main washing of the dishes to be cleaned according to the main washing parameters, and determine a change curve of the total organic carbon content according to the real-time value of the total organic carbon content in the washing water monitored by the ultraviolet spectrum detection unit in real time;

[0096] end the main washing in response to the slope of the change curve of the total organic carbon content meeting a preset condition or the value of the total organic carbon content being less than a preset value.

[0097] In some embodiments, the dishwasher further has a built-in conductivity detection unit;

[0098] In terms of controlling the execution structure of the dishwasher to perform rinsing of the dishes to be cleaned according to the rinsing parameters, the main washing and rinsing control module 304 is specifically configured to:

[0099] perform rinsing of the dishes to be cleaned according to the rinsing parameters in response to the dishwasher injecting new clean water;

[0100] In the rinsing process, control the conductivity detection unit to monitor the conductivity value of the washing water in real time;

[0101] end the rinsing and enter the drying stage in response to the conductivity value decreasing and stabilizing at a preset clean water threshold.​

[0102] In some embodiments, the control device of the dishwasher further comprises:

[0103] The detergent dispensing control module is configured to calculate a detergent dispensing amount in a current washing mode according to the monitored value of the total organic carbon content and the falling speed of the total organic carbon content at an initial stage of main washing of the to-be-cleaned tableware according to the main washing parameters, and to intelligently dispense the detergent.

[0104] In some embodiments, the control device of the dishwasher further comprises:

[0105] The supplementing module is configured to calculate an additional amount of the detergent if the falling speed of the total organic carbon content within a preset time is lower than a preset threshold after the detergent is dispensed, and to supplement the detergent according to the additional amount of the detergent; or,

[0106] The prompting module is configured to prompt a user to increase a detergent amount in next washing through a man-machine interaction module built in the dishwasher after the current washing is completed.

[0107] In some embodiments, the control device of the dishwasher further comprises a self-calibration control module configured to:

[0108] The self-calibration control module is configured to control an execution mechanism of the dishwasher to inject clean water used for washing the to-be-cleaned tableware into the dishwasher;

[0109] The self-calibration control module is configured to control the ultraviolet spectrum detection unit to detect the total organic carbon content of the clean water, and to control the conductivity detection unit to detect a conductivity value of the clean water;

[0110] The self-calibration control module is configured to perform self-calibration on the ultraviolet spectrum detection unit according to the total organic carbon content of the clean water, and to perform self-calibration on the conductivity detection unit according to the conductivity value of the clean water.

[0111] In some embodiments, the control device of the dishwasher further comprises:

[0112] The self-cleaning control module is configured to determine whether to perform self-cleaning on the ultraviolet spectrum detection unit and the conductivity detection unit according to historical detection data of the ultraviolet spectrum detection unit and the conductivity detection unit within a period of time.

[0113] The control device of the dishwasher provided in the embodiments of the present application can execute the control method of the dishwasher provided in any of the embodiments of the present application, and has the corresponding function modules and beneficial effects of the execution method.

[0114] According to the embodiments of the present application, the present application further provides an electronic device, a readable storage medium and a computer program product.

[0115] Embodiment four

[0116] Figure 4A structural diagram of an electronic device 10 that can be used to implement embodiments of the present application is shown. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application described and / or claimed herein.

[0117] As shown, Figure 4 The electronic device 10 includes at least one processor 11, and a memory, such as a read-only memory 12, a random access memory 13, etc., communicatively connected to the at least one processor 11, where the memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer programs stored in the read-only memory 12 or loaded from the storage unit 18 into the random access memory 13. Various programs and data required for the operation of the electronic device 10 can also be stored in the random access memory 13. The processor 11, the read-only memory 12, and the random access memory 13 are connected to each other through a bus 14. An input / output interface 15 is also connected to the bus 14.

[0118] Various components in the electronic device 10 are connected to the input / output interface 15, including an input unit 16, an output unit 17, such as various types of displays, speakers, etc., a storage unit 18, such as a magnetic disk, an optical disk, etc., and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0119] The processor 11 can be various general and / or special purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit, a graphics processing unit, various special-purpose artificial intelligence computing chips, various processors running machine learning model algorithms, a digital signal processor, and any appropriate processor, controller, microcontroller, etc. The processor 11 performs various methods and processes described above, such as performing the control method of the dishwasher.

[0120] In some embodiments, the control method of the dishwasher can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the read-only memory 12 and / or the communication unit 19. When the computer program is loaded into the random access memory 13 and executed by the processor 11, one or more steps of the control method of the dishwasher described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the control method of the dishwasher by any other appropriate means, such as by means of firmware.

[0121] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, specially designed application specific integrated circuits, application specific standard products, chips, microprocessors, computer hardware, firmware, software, and / or combinations of particular embodiments. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0122] Computer programs used to implement the methods of the application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed, implements the functions / acts specified in the flowcharts and / or block diagrams.

[0123] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store computer programs for use by or in connection with an instruction execution system, apparatus, or device. Computer-readable storage media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium will include one or more lines of a program of instructions in a transitory signal, a portable computer diskette, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical fiber, a portable compact disc read-only memory, an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0124] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device or liquid crystal display (LCD) for displaying information to the user and a keyboard and a pointing device, e.g., a mouse or a trackball, by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0125] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), a blockchain network, and the Internet. The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server can arise by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and virtual private service.

[0126] It should be understood that the various forms of flow shown above can be re-ordered, added to, or deleted from without departing from the scope of the present disclosure. For example, the steps recited in the present disclosure can be performed in parallel, in series, or in a different order, as long as the desired results of the present disclosure are achieved, and are not limited herein.

[0127] The specific embodiments described above are not intended to be limiting, and persons skilled in the art will appreciate that various modifications, combinations, sub-combinations and alternatives can be made to the specific embodiments without departing from the spirit and principles of the present disclosure. Accordingly, the disclosure is not limited to the specific embodiments described above, but only by the scope of the appended claims.

Claims

1. A control method of a dishwasher, characterized by, A main control unit applied to a dishwasher, the dishwasher also being built-in with an ultraviolet spectrum detection unit, the method comprising: When pre-washing the dishes to be cleaned, controlling the ultraviolet spectrum detection unit to monitor the real-time value of the total organic carbon content in the washing water; According to the real-time value of the total organic carbon content, determining the dirtiness level of the dishes to be cleaned; According to the dirtiness level, determining the washing mode of the dishwasher in the main washing stage and the rinsing stage; wherein the washing mode at least includes main washing parameters and rinsing parameters, and the main washing parameters and the rinsing parameters of different washing modes are different; According to the main washing parameters, main washing is performed on the dishes to be cleaned, and according to the rinsing parameters, rinsing is performed on the dishes to be cleaned.

2. The method of claim 1, wherein, The main washing according to the main washing parameters comprises: According to the main washing parameters, the execution structure of the dishwasher is controlled to perform main washing on the dishes to be cleaned, and according to the real-time value of the total organic carbon content in the washing water monitored by the ultraviolet spectrum detection unit in real time, the change curve of the total organic carbon content is determined; In response to the slope of the change curve of the total organic carbon content meeting the preset condition or the value of the total organic carbon content being less than the preset value, the main washing is ended.

3. The method of claim 1, wherein, The dishwasher is also built-in with an electrical conductivity detection unit; The rinsing according to the rinsing parameters comprises: In response to the dishwasher injecting new clean water, the execution structure of the dishwasher is controlled according to the rinsing parameters to perform rinsing on the dishes to be cleaned; During the rinsing process, the electrical conductivity detection unit is controlled to monitor the electrical conductivity value of the washing water in real time; In response to the electrical conductivity value decreasing and stabilizing at a preset clean water threshold, the rinsing is ended and the drying stage is entered.

4. The method of claim 2, wherein, Further comprising: In the initial stage of main washing according to the main washing parameters on the dishes to be cleaned, according to the monitored value of the total organic carbon content and the descending speed of the total organic carbon content, the detergent dosage under the current washing mode is calculated, and intelligent dosing is performed.

5. The method of claim 4, wherein, Further comprising: After the detergent is dosed, if the descending rate of the total organic carbon content within a preset time is lower than a preset threshold, the additional dosage of the detergent is calculated, and the detergent is supplemented according to the additional dosage; or, after the current washing is ended, the user is prompted to increase the detergent dosage next time through the built-in human-computer interaction module of the dishwasher.

6. The method of claim 1, wherein, Before the dishwasher pre-washes the dishes to be cleaned, the method further comprises: Controlling the execution mechanism of the dishwasher to inject clean water for washing the dishes to be cleaned into the dishwasher; Controlling the ultraviolet spectrum detection unit to detect the total organic carbon content of the clean water, and controlling the electrical conductivity detection unit to detect the electrical conductivity value of the clean water; According to the total organic carbon content of the clean water, the ultraviolet spectrum detection unit is self-calibrated, and according to the electrical conductivity value of the clean water, the electrical conductivity detection unit is self-calibrated.

7. The method of claim 1, wherein, Further comprising: According to the historical detection data of the ultraviolet spectrum detection unit and the electrical conductivity detection unit within a period of time, it is determined whether to perform self-cleaning on the ultraviolet spectrum detection unit and the electrical conductivity detection unit.

8. A control device of a dishwasher, characterized in that, A main control unit configured in a dishwasher, the dishwasher also being built-in with an ultraviolet spectrum detection unit, comprising: The first detection module is configured to control the ultraviolet spectrum detection unit to monitor a real-time value of a total organic carbon content in the washing water when the dishware to be cleaned is pre-washed. The dirt level determination module is configured to determine a dirt level of the dishware to be cleaned according to the real-time value of the total organic carbon content. The washing mode determination module is configured to determine a washing mode of the dishwasher in a main washing stage and a rinsing stage according to the dirt level, wherein the washing mode at least includes a main washing parameter and a rinsing parameter, and the main washing parameter and the rinsing parameter are different in different washing modes. The main washing and rinsing control module is configured to perform main washing on the dishware to be cleaned according to the main washing parameter, and perform rinsing on the dishware to be cleaned according to the rinsing parameter.

9. An electronic device, comprising: comprise: at least one processor; and a memory connected with the at least one processor in communication; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the method in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions, and the computer instructions are used to enable the processor to execute the method in any one of claims 1-7 when executed.

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