Threshold calibration method, apparatus, device and storage medium for eccentricity detection
By collecting acceleration characteristic values in the garment processing equipment and adjusting the threshold as needed, the problem of eccentric detection error caused by aging or loosening of the acceleration sensor is solved, thus improving the accuracy of detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO HAIER WASHING ELECTRIC APPLIANCES CO LTD
- Filing Date
- 2025-01-22
- Publication Date
- 2026-07-24
AI Technical Summary
Aging or loosening of the accelerometer in garment processing equipment can increase the threshold calibration error of eccentric detection, reducing detection accuracy.
Upon receiving a threshold calibration instruction, the garment processing equipment performs empty drum dehydration, collects acceleration characteristic values at low and high speed stages, determines whether calibration is required based on the characteristic values, and performs threshold calibration operation when necessary to adjust the threshold to improve accuracy.
By calibrating the threshold in a timely manner, the accuracy of eccentricity detection was improved and the false positive rate was reduced.
Smart Images
Figure CN122446476A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of smart home appliance technology, and specifically relates to a threshold calibration method, apparatus, device and storage medium for eccentricity detection. Background Technology
[0002] During the dehydration process, clothes often become entangled, which not only reduces dehydration efficiency but can also damage the garments. To address this issue, modern garment processing equipment uses accelerometers to detect eccentricity.
[0003] The specific process is as follows: the accelerometer captures the characteristic data of the clothing processing equipment in the low-speed dehydration stage and the high-speed dehydration stage, and compares the characteristic data with the preset threshold to perform eccentricity detection.
[0004] However, accelerometers may become loose due to equipment aging and prolonged vibration, leading to errors in the detected feature data. Using a fixed threshold for eccentricity detection may further increase the error in the results and reduce the accuracy of eccentricity detection. Summary of the Invention
[0005] This application provides a threshold calibration method, apparatus, device, and storage medium for eccentricity detection.
[0006] In a first aspect, this application provides a threshold calibration method for eccentricity detection, the method comprising:
[0007] Upon receiving a threshold calibration instruction, the garment processing equipment is controlled to execute a dehydration program in an empty drum state, and the first acceleration characteristic value corresponding to the low-speed dehydration stage and the second acceleration characteristic value corresponding to the high-speed dehydration stage are collected.
[0008] Based on the first acceleration characteristic value and the second acceleration characteristic value, determine whether the clothing processing equipment requires calibration;
[0009] If calibration is required, a threshold calibration operation is performed based on the first acceleration feature value, the second acceleration feature value, and the standard feature value corresponding to each acceleration feature value.
[0010] In one possible implementation, determining whether the garment processing equipment requires calibration based on the first acceleration characteristic value and the second acceleration characteristic value includes:
[0011] Obtain the first standard feature value corresponding to the first acceleration feature value, and the second standard feature value corresponding to the second acceleration feature value;
[0012] Calculate the first ratio between the first acceleration feature value and the first standard feature value, and the second ratio between the second acceleration feature value and the second standard feature value;
[0013] The calibration requirement for the garment processing equipment is determined based on the first ratio and the second ratio.
[0014] In one possible implementation, determining whether the garment processing equipment requires calibration based on the first ratio and the second ratio includes:
[0015] If either the first ratio or the second ratio is greater than the ratio threshold, it is determined that the garment processing equipment requires calibration.
[0016] If both the first ratio and the second ratio are less than or equal to the ratio threshold, then it is determined that the garment processing equipment does not require calibration.
[0017] In one possible implementation, the step of performing a threshold calibration operation based on the first acceleration feature value, the second acceleration feature value, and a standard feature value corresponding to each acceleration feature value includes:
[0018] Obtain at least one first threshold corresponding to the low-speed dehydration stage, and at least one second threshold corresponding to the high-speed dehydration stage;
[0019] The first calibration threshold is obtained by calibrating the first threshold based on the first standard feature value, the first acceleration feature value, and the first ratio.
[0020] The second threshold is calibrated based on the second standard feature value, the second acceleration feature value, and the second ratio to obtain the second calibration threshold.
[0021] In one possible implementation, calibrating the first threshold based on the first standard feature value, the first acceleration feature value, and the first ratio to obtain the first calibration threshold includes:
[0022] Determine the first difference between the first threshold and the first standard feature value;
[0023] The first adjustment value is determined based on the first difference and the first ratio;
[0024] The first calibration threshold is determined based on the sum of the first adjustment value and the first acceleration characteristic value.
[0025] In one possible implementation, the method further includes, prior to receiving the threshold calibration indication:
[0026] Obtain the target time point corresponding to the most recent threshold calibration operation of the clothing processing equipment;
[0027] Based on the historical operating data of the garment processing equipment, the cumulative number of times the garment processing equipment runs within a preset time period and the cumulative number of times the target running program is shaken are determined. The preset time period is determined based on the target time point, and the target running program includes a dehydration step.
[0028] Based on the cumulative number of runs and the cumulative number of jitters, determine whether to generate a threshold calibration indication.
[0029] In one possible implementation, determining whether to generate a threshold calibration indication based on the cumulative number of runs and the cumulative number of jitters includes:
[0030] The jitter frequency is determined based on the cumulative jitter count and the cumulative number of runs;
[0031] If the cumulative number of runs is greater than the first run and the jitter frequency is greater than the frequency threshold, then a threshold calibration indication is generated.
[0032] If the cumulative number of runs is greater than the second number, or the cumulative number of jitters is greater than the third number, then a threshold calibration indication is generated.
[0033] The second and third counts are both greater than the first count.
[0034] Secondly, this application provides a threshold calibration device for eccentricity detection, comprising: an acquisition module, a determination module, and a calibration module, wherein:
[0035] The acquisition module is used to control the clothing processing equipment to execute the dehydration program in an empty drum state when a threshold calibration instruction is received, and to acquire the first acceleration characteristic value corresponding to the low-speed dehydration stage and the second acceleration characteristic value corresponding to the high-speed dehydration stage.
[0036] The determining module is used to determine whether the clothing processing equipment has a calibration requirement based on the first acceleration characteristic value and the second acceleration characteristic value.
[0037] The calibration module is used to perform a threshold calibration operation based on the first acceleration feature value, the second acceleration feature value, and the standard feature value corresponding to each acceleration feature value if a calibration requirement exists.
[0038] In one possible implementation, the determining module is further configured to:
[0039] Obtain the first standard feature value corresponding to the first acceleration feature value, and the second standard feature value corresponding to the second acceleration feature value;
[0040] Calculate the first ratio between the first acceleration feature value and the first standard feature value, and the second ratio between the second acceleration feature value and the second standard feature value;
[0041] The calibration requirement for the garment processing equipment is determined based on the first ratio and the second ratio.
[0042] In one possible implementation, the determining module is further configured to:
[0043] If either the first ratio or the second ratio is greater than the ratio threshold, it is determined that the garment processing equipment requires calibration.
[0044] If both the first ratio and the second ratio are less than or equal to the ratio threshold, then it is determined that the garment processing equipment does not require calibration.
[0045] In one possible implementation, the calibration module is further configured to:
[0046] Obtain at least one first threshold corresponding to the low-speed dehydration stage, and at least one second threshold corresponding to the high-speed dehydration stage;
[0047] The first calibration threshold is obtained by calibrating the first threshold based on the first standard feature value, the first acceleration feature value, and the first ratio.
[0048] The second threshold is calibrated based on the second standard feature value, the second acceleration feature value, and the second ratio to obtain the second calibration threshold.
[0049] In one possible implementation, the calibration module is further configured to:
[0050] Determine the first difference between the first threshold and the first standard feature value;
[0051] The first adjustment value is determined based on the first difference and the first ratio;
[0052] The first calibration threshold is determined based on the sum of the first adjustment value and the first acceleration characteristic value.
[0053] In one possible implementation, the confirmation module is further configured to:
[0054] Obtain the target time point corresponding to the most recent threshold calibration operation of the clothing processing equipment;
[0055] Based on the historical operating data of the garment processing equipment, the cumulative number of times the garment processing equipment runs within a preset time period and the cumulative number of times the target running program is shaken are determined. The preset time period is determined based on the target time point, and the target running program includes a dehydration step.
[0056] Based on the cumulative number of runs and the cumulative number of jitters, determine whether to generate a threshold calibration indication.
[0057] In one possible implementation, the confirmation module is further configured to:
[0058] The jitter frequency is determined based on the cumulative jitter count and the cumulative number of runs;
[0059] If the cumulative number of runs is greater than the first run and the jitter frequency is greater than the frequency threshold, then a threshold calibration indication is generated.
[0060] If the cumulative number of runs is greater than the second number, or the cumulative number of jitters is greater than the third number, then a threshold calibration indication is generated.
[0061] The second and third counts are both greater than the first count.
[0062] Thirdly, this application provides a garment processing device, including: a processor, and a memory communicatively connected to the processor;
[0063] The memory stores computer-executed instructions;
[0064] The processor executes computer execution instructions stored in the memory to implement the threshold calibration method for eccentricity detection as described in the first aspect.
[0065] Fourthly, this application provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a computer, are used to implement the threshold calibration method for eccentricity detection as described in the first aspect.
[0066] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, can implement the steps of the scheme recommendation method as described in any of the first aspects.
[0067] This application provides a threshold calibration method, apparatus, device, and storage medium for eccentricity detection. Upon receiving a threshold calibration instruction, an empty bucket is dehydrated, and acceleration characteristic values are collected during low-speed and high-speed phases. The presence of calibration requirements is determined based on these acceleration characteristic values. If calibration is required, a threshold calibration operation is performed based on the acceleration characteristic values and the corresponding standard characteristic values. This method allows for timely calibration of the threshold used for eccentricity detection, improving the accuracy of eccentricity detection. Attached Figure Description
[0068] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0069] Figure 1 A flowchart illustrating a threshold calibration method for eccentricity detection provided in this application embodiment. Figure 1 ;
[0070] Figure 2 A flowchart illustrating a threshold calibration method for eccentricity detection provided in this application embodiment. Figure 2 ;
[0071] Figure 3 A flowchart illustrating a threshold calibration method for eccentricity detection provided in this application embodiment. Figure 3 ;
[0072] Figure 4 A schematic diagram of a threshold calibration device for eccentricity detection provided in an embodiment of this application;
[0073] Figure 5 This is a schematic diagram of the structure of a garment processing device provided in an embodiment of this application.
[0074] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0075] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0076] During the spin-drying process, clothes are prone to tangling, affecting the drying effect and potentially damaging the garments. Modern washing machines use accelerometers to detect the off-center state of the clothes during spin-drying. By comparing characteristic data at different speeds with a set threshold, the machine adjusts its operation to avoid tangling. However, accelerometers may loosen over time, leading to inaccurate characteristic data capture. Continuing to use a fixed threshold may increase detection errors and reduce the accuracy of off-center detection.
[0077] This application provides a threshold calibration method for eccentricity detection. Upon receiving a threshold calibration instruction, an empty bucket is dehydrated, and acceleration characteristic values are collected during low-speed and high-speed phases. The method determines whether calibration is required based on these acceleration characteristic values, and if so, performs a threshold calibration operation based on the acceleration characteristic values and corresponding standard characteristic values. This method allows for timely calibration of the threshold used for eccentricity detection, improving the accuracy of eccentricity detection.
[0078] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments may exist independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.
[0079] Figure 1 A flowchart illustrating a threshold calibration method for eccentricity detection provided in this application embodiment. Figure 1 .like Figure 1 As shown, the method includes:
[0080] S101. Upon receiving a threshold calibration instruction, control the garment processing equipment to perform a dehydration program while the drum is empty.
[0081] In this step, existing garment processing equipment uses an accelerometer installed inside the device to capture acceleration characteristic values caused by vibration, in order to prevent excessive vibration, noise, and displacement during the spin-drying process. Since the rotation speed of the garment processing equipment differs between the low-speed and high-speed spin-drying stages, the vibration amplitude of the inner drum differs, resulting in different acceleration characteristic values. Then, by comparing the acceleration characteristic values with corresponding thresholds, if the eccentricity of the garment processing equipment is determined to be large, a shaking operation is required or the user is prompted to readjust the garment position. However, when the garment processing equipment ages, or when the accelerometer sensor becomes loose due to vibration, errors occur in the acceleration characteristic values captured by the equipment, reducing the accuracy of eccentricity detection. Therefore, this embodiment periodically calibrates the threshold used for eccentricity detection.
[0082] Specifically, when the garment processing equipment receives a threshold calibration instruction, it is controlled to execute the spin-drying program while the drum is empty. The threshold calibration instruction can be triggered by the user selecting the corresponding program, or it can be automatically triggered by the garment processing equipment based on historical operation data. This embodiment does not limit the operation of how the garment processing equipment automatically triggers the threshold calibration instruction. For example, it could generate a threshold calibration instruction at a fixed period.
[0083] It should be noted that in this embodiment, the accelerometer sensor is integrated into the washing machine's display panel. When the power supplies of the accelerometer chip and the main control chip are mismatched, a serial port conversion circuit needs to be added between the accelerometer chip and the main control chip. The main chip reads the data from the accelerometer sensor through the serial port conversion circuit.
[0084] S102. Collect the first acceleration characteristic value corresponding to the low-speed dehydration stage and the second acceleration characteristic value corresponding to the high-speed dehydration stage.
[0085] In this step, the dehydration process includes a low-speed dehydration stage and a high-speed dehydration stage, each with a threshold for eccentricity detection. Therefore, the correct process operations must be performed for both the low-speed and high-speed dehydration stages to determine whether threshold calibration is needed and to perform threshold calibration.
[0086] Specifically, the first acceleration characteristic value corresponding to the low-speed dehydration stage of the garment processing equipment and the second acceleration characteristic value corresponding to the high-speed dehydration stage are collected.
[0087] Furthermore, even when the drum is empty, the amplitude of vibration within the garment processing equipment still varies, causing the acceleration characteristic value collected by the accelerometer to continuously change. Therefore, it is necessary to determine the appropriate acceleration characteristic value for judgment from multiple candidate acceleration characteristic values corresponding to the low-speed dehydration stage, and the same applies to the high-speed dehydration stage. The method for determining the appropriate acceleration characteristic value from multiple candidate acceleration characteristic values can be selected according to the actual situation, and this embodiment does not impose any limitations.
[0088] In one possible implementation, the acceleration characteristic value used for determining calibration requirements is determined based on the average of multiple candidate acceleration characteristic values corresponding to the low-speed dehydration stage.
[0089] S103. Based on the first acceleration characteristic value and the second acceleration characteristic value, determine whether the clothing processing equipment requires calibration.
[0090] In this step, the vibration amplitude of the inner drum of the garment processing equipment during the spin-drying process is affected by the clothes being spun. Therefore, when the garment processing equipment runs the spin-drying process with an empty drum, although the vibration amplitude of the inner drum changes, the difference from the pre-established standard characteristic value is small. Therefore, by comparing the first acceleration characteristic value, the second acceleration characteristic value, and the corresponding standard characteristic value, it can be determined whether the garment processing equipment requires calibration. The specific process is as follows:
[0091] Obtain the first standard feature value corresponding to the first acceleration feature value, and the second standard feature value corresponding to the second acceleration feature value;
[0092] Calculate the first ratio between the first acceleration characteristic value and the first standard characteristic value, and the second ratio between the second acceleration characteristic value and the second standard characteristic value;
[0093] If either the first ratio or the second ratio is greater than the ratio threshold, then the garment processing equipment is determined to require calibration.
[0094] If both the first ratio and the second ratio are less than or equal to the ratio threshold, then it is determined that the garment processing equipment does not require calibration.
[0095] This embodiment does not impose any limitation on the ratio threshold, which can be selected according to the actual situation. For example, the ratio threshold can be 110%-120%.
[0096] For example, the first acceleration characteristic value is 30, the first standard characteristic value is 20, the second acceleration characteristic value is 50, the second standard characteristic value is 50, and the ratio threshold is 110%. The first ratio is calculated as: 30 / 20 × 100% = 150%, and the second ratio is calculated as: 50 / 50 × 100% = 100%. The first ratio of 150% is greater than the ratio threshold of 110%, therefore it is determined that the garment processing equipment has a calibration requirement.
[0097] S104. If calibration is required, perform threshold calibration based on the first acceleration characteristic value, the second acceleration characteristic value, and the standard characteristic value corresponding to each acceleration characteristic value.
[0098] In this step, when it is determined that the garment processing equipment has a calibration requirement, the corresponding ratio change is determined based on the first acceleration characteristic value, the second acceleration characteristic value, and the corresponding standard characteristic value, and then the threshold is corrected based on the ratio change.
[0099] Furthermore, if the garment processing equipment does not require calibration, the threshold calibration operation will not be performed.
[0100] This application provides a threshold calibration method for eccentricity detection. Upon receiving a threshold calibration instruction, an empty bucket is dehydrated, and acceleration characteristic values are collected during low-speed and high-speed phases. The method determines whether calibration is required based on these acceleration characteristic values, and if so, performs a threshold calibration operation based on the acceleration characteristic values and corresponding standard characteristic values. This method allows for timely calibration of the threshold used for eccentricity detection, improving the accuracy of eccentricity detection.
[0101] Figure 2 A flowchart illustrating a threshold calibration method for eccentricity detection provided in this application embodiment. Figure 2 This embodiment provides a detailed explanation of the steps involved in performing a calibration operation based on acceleration characteristic values and corresponding standard characteristic values. For example... Figure 2 As shown, the method includes:
[0102] S201. Obtain at least one first threshold corresponding to the low-speed dehydration stage and at least one second threshold corresponding to the high-speed dehydration stage.
[0103] In this step, when it is determined that the garment processing equipment requires calibration, at least one first threshold corresponding to the low-speed dehydration stage is obtained, and at least one second threshold corresponding to the high-speed dehydration stage is obtained. The number of first and second thresholds is determined according to the actual eccentricity detection logic, and this embodiment does not impose any limitations.
[0104] S202. Determine the first difference between the first threshold and the first standard feature value, and determine the first adjustment value based on the first difference and the first ratio.
[0105] In this step, the vibration amplitude of the inner tub corresponding to the first acceleration characteristic value is the same as that corresponding to the first standard characteristic value. Therefore, the difference between the first threshold and the first standard characteristic value is adjusted according to the first ratio. Then, the calibrated threshold is determined according to the difference and the first acceleration characteristic value.
[0106] Specifically, the first difference between the first threshold and the first standard feature value is calculated, and the first adjustment value is calculated based on the first difference and the first ratio.
[0107] It should be noted that, in most cases, the first ratio corresponding to the low-speed dehydration stage and the second ratio corresponding to the high-speed dehydration stage are different, mainly because the rotational speeds of the low-speed and high-speed dehydration stages are different. Therefore, to ensure the accuracy of threshold calibration, the threshold calibration for each dehydration stage is based on the ratio of the acceleration characteristic value of that dehydration stage to the standard characteristic value.
[0108] S203. Determine the first calibration threshold based on the sum of the first adjustment value and the first acceleration characteristic value.
[0109] In this step, after determining the first adjustment value, the first calibration threshold is determined based on the sum of the first adjustment value and the first acceleration characteristic value.
[0110] For example, the first ratio is 150%, the first acceleration characteristic value is 30, the first standard characteristic value is 20, and the first threshold is 30. The first difference is calculated as: 30-20=10, the first adjustment value is: 10×150%=15, and the first calibration threshold is 15+30=45.
[0111] S204. The second threshold is calibrated based on the second standard characteristic value, the second acceleration characteristic value, and the second ratio to obtain the second calibration threshold.
[0112] In this step, the second difference between the second threshold and the second standard feature value is calculated, the second adjustment value is calculated based on the second difference and the second ratio, and then the second calibration value is determined based on the sum of the second adjustment value and the second acceleration feature value.
[0113] This application provides a threshold calibration method for eccentricity detection. It determines a first threshold corresponding to a low-speed dehydration stage and a second threshold corresponding to a high-speed dehydration stage. A first adjustment value is obtained by correcting the first difference between the first threshold and a first standard characteristic value based on a first ratio. Then, a first calibration threshold is determined based on the first adjustment value and a first acceleration characteristic value. Simultaneously, a second threshold is calibrated based on a second standard characteristic value, a second acceleration characteristic value, and a second ratio to obtain a second calibration threshold. This method improves the accuracy of threshold calibration and reduces misjudgments in eccentricity detection by garment processing equipment.
[0114] Figure 3 A flowchart illustrating a threshold calibration method for eccentricity detection provided in this application embodiment. Figure 3 This embodiment provides a detailed explanation of the steps involved in generating a threshold calibration indication using a garment processing device. For example... Figure 3 As shown, the method includes:
[0115] S301. Obtain the target time point corresponding to the most recent threshold calibration operation of the clothing processing equipment.
[0116] In this step, due to equipment aging, or significant vibrations during the dehydration process of the garment processing equipment, the accelerometer sensor may become loose, affecting the accuracy of the acceleration characteristic value. Therefore, the risk of accelerometer sensor loosening is determined by considering the number of times the garment processing equipment has been run and the number of dehydration cycles; that is, it is determined whether a threshold calibration indication should be generated.
[0117] Specifically, the target time point corresponding to the most recent threshold calibration operation of the garment processing equipment is obtained. This time point is used to selectively obtain historical data from historical operation records to improve the accuracy of the risk analysis of accelerometer loosening.
[0118] S302. Based on the historical operating data of the clothing processing equipment, determine the cumulative number of times the clothing processing equipment runs within a preset time period and the cumulative number of times the target running program is shaken.
[0119] The preset time period is determined based on the target time point, and the target running program includes a dehydration step.
[0120] In this step, in addition to the dehydration program, some operating programs of the garment processing equipment also include dehydration steps, such as the washing program. Therefore, to further improve the accuracy of the analysis, this embodiment determines the number of shakes based on the target operating program that includes the dehydration step.
[0121] Furthermore, equipment aging is primarily affected by the number of times it is used; therefore, the cumulative number of operations of the garment processing equipment is used to determine whether aging has occurred. It should be noted that the aging mentioned in this embodiment is relative.
[0122] Specifically, a preset time period is obtained based on the target time point and the current time point. The cumulative number of times the clothing processing equipment runs within the preset time period is obtained based on historical operating data. The cumulative number of shakes corresponding to the target operating program is determined based on the historical data corresponding to the target operating program within the preset time period.
[0123] S303. Determine the jitter frequency based on the cumulative number of jitters and the cumulative number of runs.
[0124] In this step, during the dehydration stage, if the clothes are severely tangled, a single shaking operation may not be able to distribute them evenly. However, the number of shaking operations will not be excessive, generally a maximum of 2-3 shakes. If 2 or 3 shakes fail to distribute the clothes evenly, the user needs to manually adjust the position of the clothes. If the accelerometer sensor is loose, the number of false alarms in the clothing processing equipment's eccentricity detection increases, leading to more shaking operations and a higher ratio of cumulative shaking counts to cumulative operation counts. Therefore, this embodiment also uses the shaking frequency as a criterion for analyzing whether the accelerometer sensor is at risk of loosening.
[0125] Specifically, the shaking frequency of the garment processing equipment within a preset time period is determined based on the ratio of the cumulative shaking frequency to the cumulative running frequency.
[0126] S304. If the cumulative number of runs is greater than the first run and the jitter frequency is greater than the frequency threshold, then a threshold calibration indication is generated.
[0127] In this step, when the cumulative number of runs of the garment processing equipment is low, the shaking frequency value is high, which may be due to the dehydration of the garments. Therefore, in order to improve the accuracy of the analysis results obtained based on the shaking frequency, this embodiment makes a comprehensive judgment based on the cumulative number of runs.
[0128] Specifically, if the cumulative number of runs is greater than the first run and the shaking frequency is greater than the frequency threshold, it is determined that there is a risk of the accelerometer sensor becoming loose in the clothing processing equipment, and a threshold calibration indication is generated to control the clothing processing equipment to perform the steps described in the aforementioned embodiments.
[0129] It should be noted that the initial count should not be too small to avoid the analysis results being affected by dehydrated clothing. Also, to promptly identify the risk of the accelerometer becoming loose, the initial count should not be too large. For example, the initial count could be 6-12 times. The frequency threshold is determined based on the frequency with which the user runs the target program, and is directly proportional to the frequency of use. For example, the frequency threshold could be 1.2-1.5.
[0130] S305. If the cumulative number of runs is greater than the second number, or the cumulative number of jitters is greater than the third number, then determine to generate a threshold calibration indication.
[0131] The second and third numbers are both greater than the first number.
[0132] In this step, if the garment processing equipment is used many times, it indicates that the equipment is aging more severely, and there may be a risk that the accelerometer sensor will become loose; if the garment is shaken many times, the accelerometer sensor may become loose due to repeated vibrations.
[0133] Therefore, when the cumulative number of runs exceeds the second count, or the cumulative number of shakes exceeds the third count, it indicates that the accelerometer sensor of the garment processing equipment is at risk of loosening, and a threshold calibration indication is generated. The second and third counts can be customized according to the actual scenario; for example, the second count can be 20-25 runs, and the shake count can be 20-30 runs.
[0134] This application provides a threshold calibration method for eccentricity detection. Based on the historical operation records of the garment processing equipment since the last threshold calibration operation, the cumulative number of runs and the cumulative number of jitters corresponding to the target operation program are obtained, and the jitter frequency is calculated. Based on the relationship between the jitter frequency and the jitter threshold, the relationship between the cumulative number of runs and the first and second counts, and the relationship between the cumulative number of jitters and the third count, it is determined whether to generate a threshold calibration indication. This method can promptly identify the risk of accelerometer loosening while improving the accuracy of the analysis results.
[0135] Figure 4 This is a schematic diagram of a threshold calibration device for eccentricity detection provided in an embodiment of this application. Figure 4 As shown, the threshold calibration device 40 for eccentricity detection includes: an acquisition module 401, a determination module 402, and a calibration module 403, wherein:
[0136] The acquisition module 401 is used to control the clothing processing equipment to execute the dehydration program in an empty drum state when a threshold calibration instruction is received, and to acquire the first acceleration characteristic value corresponding to the low-speed dehydration stage and the second acceleration characteristic value corresponding to the high-speed dehydration stage.
[0137] The determining module 402 is used to determine whether the clothing processing equipment has a calibration requirement based on the first acceleration characteristic value and the second acceleration characteristic value.
[0138] The calibration module 403 is used to perform a threshold calibration operation based on the first acceleration feature value, the second acceleration feature value, and the standard feature value corresponding to each acceleration feature value if there is a calibration requirement.
[0139] In one possible implementation, the determining module 402 is further configured to:
[0140] Obtain the first standard feature value corresponding to the first acceleration feature value, and the second standard feature value corresponding to the second acceleration feature value;
[0141] Calculate the first ratio between the first acceleration feature value and the first standard feature value, and the second ratio between the second acceleration feature value and the second standard feature value;
[0142] The calibration requirement for the garment processing equipment is determined based on the first ratio and the second ratio.
[0143] In one possible implementation, the determining module 402 is further configured to:
[0144] If either the first ratio or the second ratio is greater than the ratio threshold, it is determined that the garment processing equipment requires calibration.
[0145] If both the first ratio and the second ratio are less than or equal to the ratio threshold, then it is determined that the garment processing equipment does not require calibration.
[0146] In one possible implementation, the calibration module 403 is further configured to:
[0147] Obtain at least one first threshold corresponding to the low-speed dehydration stage, and at least one second threshold corresponding to the high-speed dehydration stage;
[0148] The first calibration threshold is obtained by calibrating the first threshold based on the first standard feature value, the first acceleration feature value, and the first ratio.
[0149] The second threshold is calibrated based on the second standard feature value, the second acceleration feature value, and the second ratio to obtain the second calibration threshold.
[0150] In one possible implementation, the calibration module 403 is further configured to:
[0151] Determine the first difference between the first threshold and the first standard feature value;
[0152] The first adjustment value is determined based on the first difference and the first ratio;
[0153] The first calibration threshold is determined based on the sum of the first adjustment value and the first acceleration characteristic value.
[0154] In one possible implementation, the confirmation module 402 is further configured to:
[0155] Obtain the target time point corresponding to the most recent threshold calibration operation of the clothing processing equipment;
[0156] Based on the historical operating data of the garment processing equipment, the cumulative number of times the garment processing equipment runs within a preset time period and the cumulative number of times the target running program is shaken are determined. The preset time period is determined based on the target time point, and the target running program includes a dehydration step.
[0157] Based on the cumulative number of runs and the cumulative number of jitters, determine whether to generate a threshold calibration indication.
[0158] In one possible implementation, the confirmation module 402 is further configured to:
[0159] The jitter frequency is determined based on the cumulative jitter count and the cumulative number of runs;
[0160] If the cumulative number of runs is greater than the first run and the jitter frequency is greater than the frequency threshold, then a threshold calibration indication is generated.
[0161] If the cumulative number of runs is greater than the second number, or the cumulative number of jitters is greater than the third number, then a threshold calibration indication is generated.
[0162] The second and third counts are both greater than the first count.
[0163] This embodiment provides a threshold calibration device for eccentricity detection, which can perform the threshold calibration method for eccentricity detection provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail here.
[0164] Figure 5 This is a schematic diagram of the structure of a garment processing device provided in an embodiment of this application. Figure 5As shown, the garment processing device 50 includes a processor 501 and a memory 502 communicatively connected to the processor 501. Optionally, the garment processing device 50 also includes a communication component 503. The processor 501, memory 502, and communication component 503 are connected via a bus 504.
[0165] Memory 502 stores instructions executed by the computer;
[0166] The processor 501 executes computer execution instructions stored in the memory 502 to implement the threshold calibration method for eccentricity detection as described above.
[0167] At least one processor 501 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.
[0168] Optionally, in specific implementations, the processor 501 and memory 502 are implemented independently. In this case, the processor 501 and memory 502 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc., but this does not imply that there is only one bus or one type of bus.
[0169] Optionally, in a specific implementation, if the processor 501 and the memory 502 are integrated on a single chip, the processor 501 and the memory 502 can communicate through an internal interface.
[0170] This application also provides a computer storage medium storing computer execution instructions, which, when executed by a processor, implement the aforementioned threshold calibration method for eccentricity detection.
[0171] The aforementioned computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The computer-readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.
[0172] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Alternatively, the readable storage medium can be an integral part of the processor. Both the processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the control device of a garment handling apparatus.
[0173] The division of units described herein is merely a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.
[0174] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0175] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0176] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
[0177] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.
[0178] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A threshold calibration method for eccentricity detection, characterized in that, The method includes: Upon receiving a threshold calibration instruction, the garment processing equipment is controlled to execute a dehydration program in an empty drum state, and the first acceleration characteristic value corresponding to the low-speed dehydration stage and the second acceleration characteristic value corresponding to the high-speed dehydration stage are collected. Based on the first acceleration characteristic value and the second acceleration characteristic value, determine whether the clothing processing equipment requires calibration; If calibration is required, a threshold calibration operation is performed based on the first acceleration feature value, the second acceleration feature value, and the standard feature value corresponding to each acceleration feature value.
2. The method according to claim 1, characterized in that, The step of determining whether the clothing processing equipment requires calibration based on the first acceleration characteristic value and the second acceleration characteristic value includes: Obtain the first standard feature value corresponding to the first acceleration feature value, and the second standard feature value corresponding to the second acceleration feature value; Calculate the first ratio between the first acceleration feature value and the first standard feature value, and the second ratio between the second acceleration feature value and the second standard feature value; The calibration requirement for the garment processing equipment is determined based on the first ratio and the second ratio.
3. The method according to claim 2, characterized in that, The step of determining whether the garment processing equipment requires calibration based on the first ratio and the second ratio includes: If either the first ratio or the second ratio is greater than the ratio threshold, it is determined that the garment processing equipment requires calibration. If both the first ratio and the second ratio are less than or equal to the ratio threshold, then it is determined that the garment processing equipment does not require calibration.
4. The method according to any one of claims 2-3, characterized in that, The step of performing a threshold calibration operation based on the first acceleration feature value, the second acceleration feature value, and the standard feature value corresponding to each acceleration feature value includes: Obtain at least one first threshold corresponding to the low-speed dehydration stage, and at least one second threshold corresponding to the high-speed dehydration stage; The first calibration threshold is obtained by calibrating the first threshold based on the first standard feature value, the first acceleration feature value, and the first ratio. The second threshold is calibrated based on the second standard feature value, the second acceleration feature value, and the second ratio to obtain the second calibration threshold.
5. The method according to claim 4, characterized in that, The step of calibrating the first threshold based on the first standard feature value, the first acceleration feature value, and the first ratio to obtain the first calibration threshold includes: Determine the first difference between the first threshold and the first standard feature value; The first adjustment value is determined based on the first difference and the first ratio; The first calibration threshold is determined based on the sum of the first adjustment value and the first acceleration characteristic value.
6. The method according to claim 1, characterized in that, Before receiving the threshold calibration instruction, the method further includes: Obtain the target time point corresponding to the most recent threshold calibration operation of the clothing processing equipment; Based on the historical operating data of the garment processing equipment, the cumulative number of times the garment processing equipment runs within a preset time period and the cumulative number of times the target running program is shaken are determined. The preset time period is determined based on the target time point, and the target running program includes a dehydration step. Based on the cumulative number of runs and the cumulative number of jitters, determine whether to generate a threshold calibration indication.
7. The method according to claim 6, characterized in that, The step of determining whether to generate a threshold calibration indication based on the cumulative number of runs and the cumulative number of jitters includes: The jitter frequency is determined based on the cumulative jitter count and the cumulative number of runs; If the cumulative number of runs is greater than the first run and the jitter frequency is greater than the frequency threshold, then a threshold calibration indication is generated. If the cumulative number of runs is greater than the second number, or the cumulative number of jitters is greater than the third number, then a threshold calibration indication is generated. The second and third counts are both greater than the first count.
8. A threshold calibration device for eccentricity detection, characterized in that, include: The module consists of an acquisition module, a determination module, and a calibration module, among which: The acquisition module is used to control the clothing processing equipment to execute the dehydration program in an empty drum state when a threshold calibration instruction is received, and to acquire the first acceleration characteristic value corresponding to the low-speed dehydration stage and the second acceleration characteristic value corresponding to the high-speed dehydration stage. The determining module is used to determine whether the clothing processing equipment has a calibration requirement based on the first acceleration characteristic value and the second acceleration characteristic value. The calibration module is used to perform a threshold calibration operation based on the first acceleration feature value, the second acceleration feature value, and the standard feature value corresponding to each acceleration feature value if a calibration requirement exists.
9. A garment processing device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the threshold calibration method for eccentricity detection as described in any one of claims 1 to 7.