CN115104950A - Fault detection method and device, dust collector and storage medium - Google Patents
Fault detection method and device, dust collector and storage medium Download PDFInfo
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- CN115104950A CN115104950A CN202110286626.3A CN202110286626A CN115104950A CN 115104950 A CN115104950 A CN 115104950A CN 202110286626 A CN202110286626 A CN 202110286626A CN 115104950 A CN115104950 A CN 115104950A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
- A47L9/2831—Motor parameters, e.g. motor load or speed
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Mechanical Engineering (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
The embodiment of the application discloses a fault detection method, which comprises the following steps: acquiring a current parameter value of a target working parameter of a motor at the current moment; wherein the dust collector comprises the motor; acquiring a target historical parameter value of the target working parameter at a target historical time corresponding to a preset time adjacent to the current time; the preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value; determining a target blockage position of the dust collector with a blockage situation based on the current parameter value and the target historical parameter value; and generating prompt information used for indicating the target blockage position of the user to have a blockage situation based on the target blockage position. The embodiment of the application also discloses a fault detection device, a dust collector and a storage medium.
Description
Technical Field
The present disclosure relates to the field of vacuum cleaners, and more particularly, to a method and an apparatus for fault detection, a vacuum cleaner, and a storage medium.
Background
At present, along with the improvement of the performance of the dust collector, the application of the dust collector is more and more popular, and the application scenes of the dust collector are more and more. However, along with the increase of the service life of the dust collector, after the dust collection amount of the dust collector is large, the situation that the filter cotton is blocked is caused due to the accumulation of the sucked particles, or after the dust collector sucks large particles, the large particles are clamped in the air duct to form the blocking situation, and the problem that the cleaning effect is reduced is seriously caused. At present, in order to quickly prompt a user of the problem of blockage of a dust collector, the technical scheme is realized by judging whether the current or the rotating speed of a motor of the dust collector exceeds a corresponding threshold value.
However, in the current technical scheme, the user can only be simply prompted about the blockage of the dust collector, and the user cannot be accurately prompted about whether the air duct of the dust collector is blocked or the filter cotton of the dust collector is blocked, so that the intelligent degree of the dust collector is low.
Content of application
In order to solve the technical problems, embodiments of the present application are intended to provide a fault detection method, a fault detection device, a dust collector, and a storage medium, so as to solve the problem that the blockage position of the current dust collector cannot be accurately distinguished when the current dust collector is blocked, and provide a detection method for accurately positioning and prompting the blockage position of the dust collector, thereby effectively improving the intelligent degree of the dust collector, and ensuring the dust collection efficiency of the dust collector.
The technical scheme of the application is realized as follows:
in a first aspect, a method of fault detection, the method comprising:
acquiring a current parameter value of a target working parameter of a motor at the current moment; wherein the dust collector comprises the motor;
acquiring a target historical parameter value of the target working parameter at a target historical time corresponding to a preset time adjacent to the current time; the preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value;
determining a target blockage position of the dust collector with a blockage situation based on the current parameter value and the target historical parameter value;
and generating prompt information used for indicating the target blockage position of the user to have a blockage situation based on the target blockage position.
In a second aspect, a fault detection apparatus, the apparatus comprising: the device comprises a collecting unit, an acquiring unit, a determining unit and a generating unit; wherein:
the acquisition unit is used for acquiring the current parameter value of the target working parameter of the motor at the current moment; wherein the dust collector comprises the motor;
the acquisition unit is used for acquiring a target historical parameter value of the target working parameter at a target historical moment corresponding to a preset time length adjacent to the current moment; the preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value;
the determination unit is used for determining a target blockage position of the dust collector with a blockage situation based on the current parameter value and the target historical parameter value;
the generating unit is used for generating prompt information used for indicating the target blockage position of the user to have a blockage situation based on the target blockage position.
In a third aspect, a vacuum cleaner, the vacuum cleaner comprising: the device comprises a motor, an air duct and a processor; wherein:
the motor is used for generating suction force at the air duct;
the processor is configured to implement the steps of the fault detection method according to any one of the above-mentioned claims.
In a fourth aspect, a storage medium has stored thereon a fault detection program which, when executed by a processor, implements the steps of the fault detection method as defined in any one of the preceding claims.
In the embodiment of the application, after the current parameter value of the target working parameter of the motor at the current moment is acquired, the target historical parameter value of the target working parameter at the target historical moment corresponding to the previous preset time adjacent to the current moment is acquired, then the target blockage position of the dust collector with the blockage condition is determined based on the current parameter value and the target historical parameter value, and prompt information used for indicating the blockage condition of the target blockage position of a user is generated based on the target blockage position. Therefore, the target blockage position of the dust collector under the blockage condition is determined through the relation between the current parameter value and the target historical parameter value of the motor target working parameter, then prompt information used for indicating the blockage condition of the target blockage position of a user is generated, the problem that the blockage position of the dust collector cannot be accurately distinguished when the blockage condition occurs in the existing dust collector is solved, the detection method for accurately positioning and prompting the blockage position of the dust collector is provided, the intelligent degree of the dust collector is effectively improved, and the dust collection efficiency of the dust collector is guaranteed.
Drawings
Fig. 1 is a schematic flowchart of a fault detection method according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of another fault detection method provided in the embodiment of the present application;
FIG. 3 is a schematic structural view of a vacuum cleaner according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram illustrating a change of an operating current of a fan according to an embodiment of the present disclosure;
fig. 5 is a schematic flowchart of another fault detection method provided in the embodiment of the present application;
fig. 6 is a schematic flowchart of a fault detection method according to another embodiment of the present application;
fig. 7 is a schematic structural diagram of a fault detection apparatus according to an embodiment of the present disclosure;
fig. 8 is a schematic structural view of another vacuum cleaner provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
An embodiment of the present application provides a fault detection method, as shown in fig. 1, which is applied to a vacuum cleaner, and includes the following steps:
Wherein, the dust catcher includes the motor.
In the embodiment of the application, the dust collector comprises a motor, and the motor is used for providing suction force for the dust collector so as to enable the air duct of the dust collector to realize the dust collection function. The target operating parameter of the motor may be an operating parameter when the motor is operated, and may be, for example, an operating current of a cleaner motor or a rotational speed of the cleaner motor. When the dust collector collects the parameter value of the target working parameter, the parameter value can be collected according to a certain sampling interval, for example, 1 second(s) is taken as the sampling interval.
And 102, acquiring a target historical parameter value of a target working parameter at a target historical time corresponding to a preset time length adjacent to the current time.
The preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value.
In the embodiment of the present application, the preset time period may be an empirical value obtained according to a lot of experiments or user experience. The parameter value that the dust catcher will gather according to the sampling cycle target working parameter all can be saved, can save in the local storage area of dust catcher, perhaps when the dust catcher has the function of communicating with the internet, can save the parameter value of the target working parameter who gathers to the cloud storage area that corresponds. It should be noted that the target historical parameter value of the target working parameter is obtained by collecting the parameter value of the target working parameter when the dust collector operates, and includes data obtained by collecting the parameter value of the target working parameter during each time the dust collector restarts to operate.
And 103, determining a target blockage position of the dust collector when the blockage occurs on the basis of the current parameter value and the target historical parameter value.
In the embodiment of the application, because the corresponding relationship between the current parameter value and the target historical parameter value is different when the dust collector is blocked at different positions, such as filter cotton blockage and air duct blockage, the target blockage position of the dust collector in the blockage condition can be determined according to the current parameter value and the target historical parameter value. The target blockage position can be at the filter cotton position or the air duct position of the dust collector.
And 104, generating prompt information for indicating that the target jam position of the user has jam condition based on the target jam position.
In the embodiment of the application, the prompt information indicating the jam condition of the target jam position of the user can be realized in the form of an indicator light, a voice form, a text form or a combination of multiple forms. When the method is realized in a text form, the text prompt information can be displayed in a screen display area arranged in the dust collector, or the dust collector sends the text prompt information to a terminal device with a communication link with the dust collector to be displayed at the terminal device, and the corresponding terminal device can be a central control device with a display screen in a smart phone, a tablet computer, a desktop computer or a smart home control system, for example. The dust collector and the terminal device can be realized by the internet or a short-distance communication mode such as Bluetooth, ZigBee (ZigBee) and infrared.
Like this, when the user blockked up the position according to the suggestion information determination target and blockked up the position and appear blockking up, can directly block up the position to the target and carry out the foreign matter processing to guarantee the dust absorption effect of dust catcher, need not the user and carry out the one-by-one to all the circumstances that probably appear blockking up, effectively improved user's use experience effect.
After the foreign matter at the target blockage position is cleared by the user, the user can clear all the previously stored data or select the data in the process of using the dust collector to clear, so that the accurate use of the foreign matter at the target blockage position after being cleared can be effectively ensured, the condition that the target blockage position is blocked by error prompt is effectively reduced, the accurate prompt rate of accurately prompting the target blockage position is improved, and the use experience effect of the user is ensured.
In the embodiment of the application, after the current parameter value of the target working parameter of the motor at the current moment is acquired, the target historical parameter value of the target working parameter at the target historical moment corresponding to the previous preset time adjacent to the current moment is acquired, then the target blockage position of the dust collector with the blockage condition is determined based on the current parameter value and the target historical parameter value, and prompt information used for indicating the blockage condition of the target blockage position of a user is generated based on the target blockage position. Therefore, the target blockage position of the dust collector under the blockage condition is determined through the relation between the current parameter value and the target historical parameter value of the motor target working parameter, then prompt information used for indicating the blockage condition of the target blockage position of a user is generated, the problem that the blockage position of the dust collector cannot be accurately distinguished when the blockage condition occurs in the existing dust collector is solved, the detection method for accurately positioning and prompting the blockage position of the dust collector is provided, the intelligent degree of the dust collector is effectively improved, and the dust collection efficiency of the dust collector is guaranteed.
Based on the foregoing embodiments, an embodiment of the present application provides a fault detection method, as shown in fig. 2, which is applied to a vacuum cleaner, and includes the following steps:
Wherein the vacuum cleaner comprises a motor, and the target operating parameter comprises the current of the motor or the rotating speed of the motor.
In the embodiment of the present application, a target operating parameter of a motor is taken as an example for description, where when a dust collector collects a parameter value of the target operating parameter of the motor, a sampling frequency is 1 second and 1 time, and when the dust collector starts to perform dust collection, the dust collector starts to collect a current parameter value of the target operating parameter of the motor at a current moment.
The preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value.
In the embodiment of the application, the preset first threshold is an empirical value obtained in advance according to a large number of experiments and used for judging whether the dust collector is blocked, when the target working parameter is the current of the motor, the corresponding first threshold is a current empirical value when the dust collector is blocked, and when the target working parameter is the rotating speed of the motor, the corresponding first threshold is a rotating speed empirical value when the dust collector is blocked.
When the current parameter value is less than or equal to the first threshold value, the possibility of blockage of the dust collector is determined, so that a target historical parameter value of a target working parameter needs to be further acquired to accurately determine the specific position of the blockage. When the current parameter value is larger than the first threshold value, the possibility that the dust collector is not blocked is determined, so that subsequent analysis is not needed, the current parameter value and the first threshold value are judged in advance, the subsequent analysis is continued under the condition that the possibility of blocking exists, otherwise, the subsequent analysis is not carried out, and the consumption of the electric quantity of the dust collector when a processor of the dust collector analyzes is effectively reduced.
And step 203, determining a target blockage position of the dust collector with the blockage situation based on the current parameter value and the target historical parameter value.
In the embodiment of the application, the current parameter value is analyzed based on the target historical parameter value, and the target blockage position of the dust collector in the blockage situation is determined.
And 204, generating prompt information for indicating that the target blockage position of the user is blocked based on the target blockage position.
In this embodiment of the application, after the dust collector determines the target blocking position, the corresponding prompt information is generated based on the target blocking position, for example, an indicator lamp for indicating that blocking occurs at different blocking positions is provided on the dust collector, and at this time, the corresponding indicator lamp can be controlled to be on according to the target blocking position, wherein colors of different indicator lamps can be different.
Based on the foregoing embodiments, in other embodiments of the present application, step 202 may be implemented by steps 202a to 202 b:
step 202a, if the current parameter value is less than or equal to the preset first threshold, determining a first history time corresponding to a previous first time length adjacent to the current time, a second history time corresponding to a previous second time length adjacent to the current time, and a third history time corresponding to a previous third time length adjacent to the current time.
The preset duration comprises a first duration, a second duration and a third duration.
In the embodiment of the application, if the current parameter value is less than or equal to the preset first threshold, the first historical time, the second historical time and the third historical time are determined according to the historical record information of the dust collector.
Taking the current time as 2 months, 19 days, 10 minutes and 10 seconds, the first time length is 1s, the second time length is 1 minute (min), and the third time length is 1 hour (h) as an example, when the current parameter value is less than or equal to the first threshold value, the time corresponding to the first 1s of the determined first historical time as the current time is 2 months, 19 days, 10 minutes and 9 seconds, the time corresponding to the second 1min of the determined second historical time as the current time is 2 months, 19 days, 10 minutes and 10 seconds, and the time corresponding to the first 1h of the determined third historical time as the current time is 2 months, 17 days, 16 days and 55 seconds. In the embodiment of the present application, the third history time is 2 months, 17 days, and 16 days for 55 seconds, which is the recording time when the current value of the motor of the vacuum cleaner collected in the previous use process of the vacuum cleaner is used this time.
Step 202b, obtaining a first historical parameter value of the target operating parameter at the first historical moment, a second historical parameter value of the target operating parameter at the second historical moment and a third historical parameter value of the target operating parameter at the third historical moment.
Wherein the historical parameter values include a first historical parameter value, a second historical parameter value, and a third historical parameter value.
In the embodiment of the present application, taking the example of obtaining the historical data of the target operating parameter from the local storage area of the vacuum cleaner as an example, a first historical parameter value corresponding to 10 minutes and 9 seconds at 19 months and 10 days is obtained from the local storage area of the vacuum cleaner, a second historical parameter value corresponding to 9 minutes and 10 seconds at 19 months and 10 days is obtained from the local storage area of the vacuum cleaner, and a third historical parameter value corresponding to 55 seconds at 16 days and 16 days at 17 months and 17 months is obtained from the local storage area of the vacuum cleaner.
Correspondingly, step 203 can be implemented by steps 203a to 203 d:
step 203a, determining a first rate of change based on the current parameter value and the first historical parameter value.
In the embodiment of the application, the current parameter value and the first historical parameter value are calculated to obtain the first change rate.
Step 203b, determining a second rate of change based on the current parameter value and the second historical parameter value.
In the embodiment of the application, the current parameter value and the second historical parameter value are calculated to obtain the second change rate.
Step 203c, determining a third rate of change based on the current parameter value and the third history parameter value.
In the embodiment of the application, the current parameter value and the third history parameter value are calculated to obtain a third change rate.
And step 203d, determining the target blockage position based on the first change rate, the second change rate and the third change rate.
In the embodiment of the application, the first change rate, the second change rate and the third change rate are analyzed, and the accurate target blocking position is determined.
Based on the foregoing embodiments, in other embodiments of the present application, the step 203a may be implemented by the steps a 11-a 12:
step a11, determining a first difference between the current parameter value and the first historical parameter value.
In the embodiment of the application, the value of the current parameter value minus the first historical parameter value is calculated to obtain a first difference value.
Step a12, determining the ratio of the first difference to the first duration to obtain a first rate of change.
In the embodiment of the present application, a value obtained by dividing the first difference by the first time length is calculated to obtain the first change rate. Illustratively, the first rate of change has units of amperes per second (A/s) when the first duration is 1 s.
Correspondingly, the step 203b can be realized by steps b 11-b 12:
step b11, determining a second difference between the current parameter value and the second historical parameter value.
In the embodiment of the application, the value obtained by subtracting the second historical parameter value from the current parameter value is calculated to obtain a second difference value.
And b12, determining the ratio of the second difference to the second duration to obtain a second change rate.
In the embodiment of the present application, when the second time period is 1min, the second rate of change is in units of amperes per minute (a/min), and if it is desired that the second rate of change is consistent with the first rate of change, the second time period may be recorded as 60 s.
Correspondingly, step 203c may be implemented by steps c 11-c 12:
step c11, determining a third difference between the current parameter value and the third historical parameter value.
In the embodiment of the application, the value obtained by subtracting the third history parameter value from the current parameter value is calculated to obtain a third difference value.
And c12, determining the ratio of the third difference to the third duration to obtain a third change rate.
In this embodiment, the third difference is divided by the third time duration to obtain a third change rate, where the third time duration is 1h, the unit of the third change rate is ampere per hour (a/h), and if it is desired that the third change rate is consistent with the unit of the first change rate, the third time duration may be recorded as 3600 s.
Based on the foregoing embodiment, in other embodiments of the present application, the first duration is less than the second duration, the second duration is less than the third duration, and step 203d can be implemented by steps d 11-d 12:
and d11, if the first change rate is larger than or equal to the second threshold value, determining that the target blockage position is the air duct of the dust collector.
In the embodiment of the present application, the second threshold is an empirical value obtained through a large number of experiments.
And d12, if the first change rate is smaller than the second threshold value, the second change rate is smaller than the third threshold value, and the third change rate is larger than or equal to the fourth threshold value, determining that the target blockage position is the filter cotton of the dust collector.
In the embodiment of the present application, the third threshold and the fourth threshold are empirical values obtained through a large number of experiments. And when the unit positions of the second threshold, the third threshold and the fourth threshold are the same, the second threshold is larger than the fourth threshold, and the fourth threshold is larger than the third threshold.
Therefore, the judgment is carried out according to the current or the rotating speed of the motor of the dust collector, any monitoring circuit such as a sensor is not required to be added, the cost of the dust collector can be effectively reduced, whether the dust collector is blocked or not is monitored and judged through the software implementation mode, and the software implementation mode is effectively upgraded and updated, and the iterative process is simple and convenient.
Based on the foregoing embodiments, in other embodiments of the present application, the present application provides a vacuum cleaner, as shown in fig. 3, the vacuum cleaner includes a dust cup 31, filter cotton 32, a fan 33, an air duct 34, and an air duct and dust cup interface 35; the dust cup 31 is used for placing dust and other garbage sucked by an air duct of the dust collector, the filter cotton 32 is used for filtering the garbage sucked by the air duct of the dust collector, the fan 33 is used for providing suction force for the air duct 34 to realize that the air duct 34 sucks the dust and other garbage, and the air duct and the dust cup interface are used for installing the dust cup 31 to realize connection between the dust cup and the air duct 34. The fan 33 and the motor are the same structural device in the dust collector.
When the dust collector works, along with the accumulation of the working time of the dust collector, the change of the working current of the fan of the dust collector can be shown as a dotted line B in fig. 4, and in the period from zero to t5 of the accumulated working time of the dust collector, if the dust collector is not blocked by the air duct, along with the gradual blocking of the filter cotton in the use process, the working current of the wind power shows a slow descending trend due to the reduction of the filtering air volume, until the time when the using time reaches t5, the filter cotton is completely blocked, and the working current of the fan is still in a small value for stable operation. If the air duct is blocked at time t1, the operating current of the fan may change rapidly as shown by a solid line C in fig. 4, and then after a time period t2, the operating current of the fan is in a stable low-current operation, where the operating current of the fan changes rapidly in the range from t1 to t 2. In fig. 4, the abscissa represents the accumulated working time of the fan, and the unit may be s and may be recorded as t/s; the ordinate is the working current of the fan, the unit is A, which can be recorded as I/A, and the dotted line B and the dotted line C are superposed in the range of 0-t 1.
Based on the foregoing embodiments, an embodiment of the present application provides a fault detection method, where an implementation flow of the method can be shown in fig. 5, and the method includes the following steps:
Wherein start means that the cleaner starts to operate.
And step 403, storing the collected working current value by the dust collector.
Wherein the blocking current threshold is the first threshold.
The first historical current value is the first historical parameter value, the second historical current value is the second historical parameter value, and the third historical current value is the third historical parameter value.
And step 406, calculating by the dust collector through a formula delta Is-Is to obtain a second change rate delta Is of the working current of the fan, calculating through a formula delta Imin-I Imin to obtain a branch change rate delta Imin of the working current of the fan, and calculating through a formula delta Ih-I Ih to obtain a time change rate delta Ih of the working current of the fan.
And 407, judging whether the second change rate delta Is of the working current of the fan Is larger than or equal to a second threshold value by the dust collector, executing 408 if the delta Is larger than or equal to the second threshold value, and executing 409 if the delta Is smaller than the second threshold value.
And step 408, the dust collector determines that the air duct is blocked and generates prompt information indicating the blockage of the air duct.
Therefore, the foreign matter removing treatment can be directly carried out on the air duct by a user, the smoothness of the air duct is ensured, and the dust collection efficiency of the dust collector is improved.
And 409, judging whether the partial change rate delta Imin of the working current of the fan is smaller than a third threshold value by the dust collector, if the delta Imin is larger than or equal to the third threshold value, repeatedly executing the step 402, and if the delta Imin is smaller than the third threshold value, executing the step 410.
And step 410, judging whether the time change rate delta Ih of the working current of the fan is larger than or equal to a fourth threshold value by the dust collector, if the delta Ih is larger than or equal to the fourth threshold value, executing step 411, and if the delta Ih is smaller than the fourth threshold value, executing step 402.
And 411, determining that the filter cotton is blocked by the dust collector, and generating prompt information of the blockage of the filter cotton.
Like this, the user can directly change the filter pulp under the condition of confirming filter pulp jam, and then can guarantee that the dust catcher effectively works, improves dust collection efficiency.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
In the embodiment of the application, after the current parameter value of the target working parameter of the motor at the current moment is acquired, the target historical parameter value of the target working parameter at the target historical moment corresponding to the previous preset time adjacent to the current moment is acquired, then the target blockage position of the dust collector with the blockage condition is determined based on the current parameter value and the target historical parameter value, and prompt information used for indicating the blockage condition of the target blockage position of a user is generated based on the target blockage position. Therefore, the target blockage position of the dust collector under the blockage condition is determined through the relation between the current parameter value and the target historical parameter value of the motor target working parameter, then prompt information used for indicating the blockage condition of the target blockage position of a user is generated, the problem that the blockage position of the dust collector cannot be accurately distinguished when the blockage condition occurs in the existing dust collector is solved, the detection method for accurately positioning and prompting the blockage position of the dust collector is provided, the intelligent degree of the dust collector is effectively improved, and the dust collection efficiency of the dust collector is guaranteed.
Based on the foregoing embodiments, an embodiment of the present application provides a fault detection method, as shown in fig. 6, applied to a vacuum cleaner, the method including the following steps:
Wherein the vacuum cleaner comprises a motor, and the target operating parameter comprises the current of the motor or the rotating speed of the motor.
The preset time period comprises a first time period, a second time period and a third time period.
Wherein the historical parameter values include a first historical parameter value, a second historical parameter value, and a third historical parameter value.
Step 504 determines a first rate of change based on the current parameter value and the first historical parameter value.
A third rate of change is determined based on the current parameter value and the third historical parameter value, step 506.
And step 507, determining a target blockage position based on the first change rate, the second change rate and the third change rate.
And step 508, generating prompt information for indicating that the target blockage position of the user is blocked based on the target blockage position.
Based on the foregoing embodiment, in other embodiments of the present application, the steps are based on the foregoing embodiment, and in other embodiments of the present application, the step 504 may be implemented by the steps 504a to 504 b:
step 504a determines a first difference between the current parameter value and the first historical parameter value.
And step 504b, determining the ratio of the first difference to the first duration to obtain a first change rate.
Correspondingly, step 505 can be implemented by steps 505 a-505 b:
step 505a determines a second difference between the current parameter value and a second historical parameter value.
And 505b, determining the ratio of the second difference to the second duration to obtain a second change rate.
Correspondingly, step 506 may be implemented by steps 506 a-506 b:
step 506a, a third difference between the current parameter value and the third history parameter value is determined.
Step 506b, determining a ratio of the third difference to the third duration to obtain a third rate of change.
Based on the foregoing embodiment, in other embodiments of the present application, the first duration is less than the second duration, and the second duration is less than the third duration, and step 507 may be implemented by steps 507a to 507 b:
and step 507a, if the first change rate is larger than or equal to a second threshold value, determining that the target blockage position is an air duct of the dust collector.
And step 507b, if the first change rate is smaller than a second threshold value, the second change rate is smaller than a third threshold value, and the third change rate is larger than or equal to a fourth threshold value, determining that the target blockage position is filter cotton of the dust collector.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
In the embodiment of the application, after the current parameter value of the target working parameter of the motor at the current moment is acquired, the target historical parameter value of the target working parameter at the target historical moment corresponding to the previous preset time adjacent to the current moment is acquired, then the target blockage position of the dust collector with the blockage condition is determined based on the current parameter value and the target historical parameter value, and prompt information used for indicating the blockage condition of the target blockage position of a user is generated based on the target blockage position. Therefore, the target blockage position of the dust collector with the blockage situation is determined through the relation between the current parameter value and the target historical parameter value of the motor target working parameter, then the prompt message used for indicating the blockage situation of the target blockage position of the user is generated, the problem that the blockage position of the dust collector cannot be accurately distinguished when the blockage situation occurs in the existing dust collector is solved, the detection method for accurately positioning and prompting the blockage position of the dust collector is provided, the intelligent degree of the dust collector is effectively improved, and the dust collection efficiency of the dust collector is guaranteed.
Based on the foregoing embodiments, an embodiment of the present application provides a fault detection apparatus, and as shown in fig. 7, the fault detection apparatus 6 may include: an acquisition unit 61, an acquisition unit 62, a determination unit 63, and a generation unit 64; wherein:
the acquisition unit 61 is used for acquiring the current parameter value of the target working parameter of the motor at the current moment; wherein, the dust collector comprises a motor;
an obtaining unit 62, configured to obtain a target historical parameter value of a target operating parameter at a target historical time corresponding to a previous preset time adjacent to a current time; the preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value;
a determining unit 63, configured to determine a target blockage position of the dust collector when a blockage occurs based on the current parameter value and the target historical parameter value;
and the generating unit 64 is used for generating prompt information used for indicating the jam condition of the target jam position of the user based on the target jam position.
In other embodiments of the present application, the determining unit is further configured to:
and if the current parameter value is less than or equal to a preset first threshold value, acquiring a target historical parameter value of the target working parameter at a target historical moment corresponding to a previous preset time length adjacent to the current moment.
In other embodiments of the present application, the determining unit, when performing the step of obtaining the target historical parameter value of the target historical time target operating parameter corresponding to a preset time length adjacent to the current time, may be implemented by:
determining a first history time corresponding to a previous first time length adjacent to the current time, a second history time corresponding to a previous second time length adjacent to the current time and a third history time corresponding to a previous third time length adjacent to the current time; the preset time length comprises a first time length, a second time length and a third time length;
acquiring a first historical parameter value of a target working parameter at a first historical moment, a second historical parameter value of the target working parameter at a second historical moment and a third historical parameter value of the target working parameter at a third historical moment; wherein the historical parameter values include a first historical parameter value, a second historical parameter value, and a third historical parameter value.
In other embodiments of the present application, the determining unit is configured to perform the step of determining a target blockage position of the dust collector when the blockage situation occurs based on the current parameter value and the target historical parameter value, and the step of:
determining a first rate of change based on the current parameter value and the first historical parameter value;
determining a second rate of change based on the current parameter value and the second historical parameter value;
determining a third rate of change based on the current parameter value and a third history parameter value;
a target occlusion location is determined based on the first rate of change, the second rate of change, and the third rate of change.
In other embodiments of the present application, the determining unit is configured to perform the step of determining the first rate of change based on the current parameter value and the first historical parameter value, and the determining may be implemented by:
determining a first difference value between the current parameter value and the first historical parameter value;
determining the ratio of the first difference to the first duration to obtain a first change rate;
correspondingly, determining a second rate of change based on the current parameter value and the second historical parameter value includes:
determining a second difference value between the current parameter value and a second historical parameter value;
determining the ratio of the second difference to the second duration to obtain a second change rate;
correspondingly, determining a third rate of change based on the current parameter value and the third historical parameter value includes:
determining a third difference value between the current parameter value and a third history parameter value;
and determining the ratio of the third difference to the third time length to obtain a third change rate.
In other embodiments of the present application, the first duration is less than the second duration, the second duration is less than the third duration, and the determining unit is configured to, when determining the target occlusion position based on the first rate of change, the second rate of change, and the third rate of change, perform the following steps:
if the first change rate is larger than or equal to the second threshold value, determining that the target blocking position is an air duct of the dust collector;
and if the first change rate is smaller than the second threshold value, the second change rate is smaller than the third threshold value, and the third change rate is larger than or equal to the fourth threshold value, determining that the target blockage position is the filter cotton of the dust collector.
In other embodiments of the present application, the target operating parameter includes a current of the motor or a rotational speed of the motor.
It should be noted that, in the embodiment, a specific implementation process of information interaction between the units and the modules may refer to implementation processes in the fault detection method provided in the embodiments corresponding to fig. 1 to 2 and fig. 6, and details are not described here.
In the embodiment of the application, after the current parameter value of the target working parameter of the motor at the current moment is acquired, the target historical parameter value of the target working parameter at the target historical moment corresponding to the previous preset time adjacent to the current moment is acquired, then the target blockage position of the dust collector with the blockage condition is determined based on the current parameter value and the target historical parameter value, and prompt information used for indicating the blockage condition of the target blockage position of a user is generated based on the target blockage position. Therefore, the target blockage position of the dust collector under the blockage condition is determined through the relation between the current parameter value and the target historical parameter value of the motor target working parameter, then prompt information used for indicating the blockage condition of the target blockage position of a user is generated, the problem that the blockage position of the dust collector cannot be accurately distinguished when the blockage condition occurs in the existing dust collector is solved, the detection method for accurately positioning and prompting the blockage position of the dust collector is provided, the intelligent degree of the dust collector is effectively improved, and the dust collection efficiency of the dust collector is guaranteed.
Based on the foregoing embodiments, embodiments of the present application provide a vacuum cleaner, and as shown in fig. 8, the vacuum cleaner 7 may include: a motor 71, an air duct 72 and a processor 73; wherein:
a motor 71 for generating a suction force at the wind tunnel 72;
the processor 73 is configured to implement the steps of the fault detection method shown in fig. 1 to 2 and fig. 6, which are not described in detail herein.
Based on the foregoing embodiments, embodiments of the present application provide a computer-readable storage medium, referred to as a storage medium for short, where one or more programs are stored in the computer-readable storage medium, and the one or more programs can be executed by one or more processors to implement the implementation process of the fault detection method provided in the embodiments corresponding to fig. 1 to 2 and fig. 6, which is not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (10)
1. A method of fault detection, the method comprising:
acquiring a current parameter value of a target working parameter of a motor at the current moment; wherein the dust collector comprises the motor;
acquiring a target historical parameter value of the target working parameter at a target historical time corresponding to a previous preset time adjacent to the current time; the preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value;
determining a target blockage position of the dust collector with a blockage situation based on the current parameter value and the target historical parameter value;
and generating prompt information used for indicating the target blockage position of the user to have a blockage situation based on the target blockage position.
2. The method according to claim 1, wherein the obtaining of the target historical parameter value of the target operating parameter at the target historical time corresponding to a preset time length before the current time comprises:
and if the current parameter value is smaller than or equal to a preset first threshold value, acquiring a target historical parameter value of the target working parameter at a target historical moment corresponding to a previous preset time length adjacent to the current moment.
3. The method according to claim 1 or 2, wherein the obtaining of the target historical parameter value of the target operating parameter at the target historical time corresponding to a preset time length before the current time comprises:
determining a first history time corresponding to a previous first time length adjacent to the current time, a second history time corresponding to a previous second time length adjacent to the current time, and a third history time corresponding to a previous third time length adjacent to the current time; the preset time length comprises the first time length, the second time length and the third time length;
acquiring a first historical parameter value of the target working parameter at the first historical moment, a second historical parameter value of the target working parameter at the second historical moment and a third historical parameter value of the target working parameter at the third historical moment; wherein the historical parameter values include the first historical parameter value, the second historical parameter value, and the third historical parameter value.
4. The method of claim 3, wherein determining a target blockage location for the cleaner in a blocked condition based on the current parameter value and the target historical parameter value comprises:
determining a first rate of change based on the current parameter value and the first historical parameter value;
determining a second rate of change based on the current parameter value and the second historical parameter value;
determining a third rate of change based on the current parameter value and the third history parameter value;
determining the target occlusion location based on the first rate of change, the second rate of change, and the third rate of change.
5. The method of claim 4, wherein determining a first rate of change based on the current parameter value and the first historical parameter value comprises:
determining a first difference value between the current parameter value and the first historical parameter value;
determining the ratio of the first difference to the first duration to obtain the first change rate;
correspondingly, the determining a second rate of change based on the current parameter value and the second historical parameter value includes:
determining a second difference value between the current parameter value and the second historical parameter value;
determining a ratio of the second difference to the second duration to obtain the second rate of change;
correspondingly, the determining a third rate of change based on the current parameter value and the third history parameter value includes:
determining a third difference value between the current parameter value and the third history parameter value;
and determining the ratio of the third difference to the third duration to obtain the third change rate.
6. The method of claim 4, wherein the first length of time is less than the second length of time, wherein the second length of time is less than the third length of time, and wherein determining the target occlusion position based on the first rate of change, the second rate of change, and the third rate of change comprises:
if the first change rate is larger than or equal to a second threshold value, determining that the target blockage position is an air duct of the dust collector;
and if the first change rate is smaller than the second threshold value, the second change rate is smaller than a third threshold value, and the third change rate is larger than or equal to a fourth threshold value, determining that the target blockage position is the filter cotton of the dust collector.
7. The method of any of claims 1-2, 4-6, wherein the target operating parameter comprises a current of the motor or a speed of the motor.
8. A fault detection device, characterized in that the device comprises: the device comprises a collecting unit, an acquiring unit, a determining unit and a generating unit; wherein:
the acquisition unit is used for acquiring the current parameter value of the target working parameter of the motor at the current moment; wherein the dust collector comprises the motor;
the acquisition unit is used for acquiring a target historical parameter value of the target working parameter at a target historical moment corresponding to a preset time adjacent to the current moment; the preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value;
the determining unit is used for determining a target blockage position of the dust collector when the blockage occurs on the basis of the current parameter value and the target historical parameter value;
the generating unit is used for generating prompt information used for indicating the target blockage position of the user to have a blockage situation based on the target blockage position.
9. A vacuum cleaner, characterized in that the vacuum cleaner comprises: the device comprises a motor, an air duct and a processor; wherein:
the motor is used for generating suction force at the air duct;
the processor for implementing the steps of the fault detection method according to any one of claims 1 to 7.
10. A storage medium, characterized in that the storage medium has stored thereon a failure detection program which, when executed by a processor, implements the steps of the failure detection method according to any one of claims 1 to 7.
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