CN115104950B - 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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- CN115104950B CN115104950B CN202110286626.3A CN202110286626A CN115104950B CN 115104950 B CN115104950 B CN 115104950B CN 202110286626 A CN202110286626 A CN 202110286626A CN 115104950 B CN115104950 B CN 115104950B
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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
Abstract
The embodiment of the application discloses a fault detection method, which comprises the following steps: collecting 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 pre-preset time length adjacent to the current time; wherein 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 blockage based on the current parameter value and the target historical parameter value; and generating prompt information for indicating the blocking condition of the target blocking position of the user based on the target blocking 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 particularly to a fault detection method and apparatus, a vacuum cleaner, and a storage medium.
Background
At present, with the improvement of the performance of the dust collector, the application of the dust collector is more and more popular, and the application field of the dust collector is more and more. However, with the increase of the service time of the dust collector, the dust collection amount of the dust collector is more, and then the sucked particulate matters are accumulated and adhered to the filter cotton, so that the filter cotton is blocked, or the dust collector is blocked in an air duct after sucking large particulate matters, so that the problem of reduction of the cleaning effect is seriously caused. At present, in order to quickly prompt a user of the problem of blockage of the dust collector, the technical scheme is realized by whether the current or the rotating speed of the motor of the dust collector exceeds a corresponding threshold value.
However, in the current technical scheme, the user can only be simply prompted that the dust collector is blocked, and the user cannot be accurately prompted 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 the application
In order to solve the technical problems, the embodiment of the application expects to provide a fault detection method, a device, a dust collector and a storage medium, solves the problem that the blocking position cannot be accurately distinguished when the current dust collector is blocked, provides a detection method for accurately positioning and prompting the blocking position of the dust collector, effectively improves the intelligent degree of the dust collector, and ensures the dust collection efficiency of the dust collector.
The technical scheme of the application is realized as follows:
in a first aspect, a fault detection method, the method comprising:
collecting 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 pre-preset time length adjacent to the current time; wherein 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 blockage based on the current parameter value and the target historical parameter value;
and generating prompt information for indicating the blocking condition of the target blocking position of the user based on the target blocking position.
In a second aspect, a fault detection device, the device comprising: the device comprises an acquisition unit, a determination unit and a generation 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 time corresponding to a preset time length adjacent to the current time; wherein 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 situation occurs based on the current parameter value and the target historical parameter value;
the generating unit is used for generating prompt information for indicating the blocking condition of the target blocking position of the user based on the target blocking 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 as described in any one of the above.
In a fourth aspect, a storage medium has a fault detection program stored thereon, which when executed by a processor, implements the steps of the fault detection method as described in any of the above.
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 pre-preset time length adjacent to the current moment is acquired, then the target blocking position of the dust collector with blocking condition is determined based on the current parameter value and the target historical parameter value, and the prompting information for indicating the blocking condition of the target blocking position of the user is generated based on the target blocking position. Therefore, the target blocking position of the dust collector with blocking condition is determined through the relation between the current parameter value and the target historical parameter value of the target working parameter of the motor, and then the prompting information for indicating the blocking condition of the target blocking position of the user is generated, so that the problem that the blocking position cannot be accurately distinguished when the current dust collector with blocking condition is solved, the detection method for accurately positioning and prompting the blocking 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 ensured.
Drawings
Fig. 1 is a schematic flow chart of a fault detection method according to an embodiment of the present application;
fig. 2 is a schematic flow chart of another fault detection method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a dust collector according to an embodiment of the present application;
fig. 4 is a schematic diagram of a working current change of a fan according to an embodiment of the present application;
fig. 5 is a flow chart of another fault detection method according to an embodiment of the present application;
fig. 6 is a flow chart of a fault detection method according to another embodiment of the present application;
fig. 7 is a schematic structural diagram of a fault detection device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of another dust collector according to an 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, referring to fig. 1, the method is applied to a dust collector, and the method includes the following steps:
step 101, collecting a current parameter value of a target working parameter of a motor at the current moment.
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 of the motor when the motor is operating, for example, an operating current of the vacuum cleaner motor or a rotational speed of the vacuum cleaner motor. When the dust collector collects the parameter value of the target working parameter, the dust collector can collect the parameter value according to a certain sampling interval, for example, the sampling interval is 1 second(s).
Step 102, obtaining a target historical parameter value of a target historical moment target working parameter corresponding to a pre-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.
In the embodiment of the present application, the preset duration may be an empirical value obtained according to a number of experiments or user experience. The parameter values of the target working parameters acquired according to the sampling period are stored in the dust collector, and can be stored in a local storage area of the dust collector, or when the dust collector has a function of communicating with the Internet, the parameter values of the acquired target working parameters can be stored in a corresponding cloud storage area. It should be noted that, the target historical parameter value of the target working parameter is obtained by the dust collector collecting the parameter value of the target working parameter when the dust collector works, and the data obtained by collecting the parameter value of the target working parameter during each restarting of the dust collector.
Step 103, 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.
In the embodiment of the application, because the corresponding relationship between the current parameter value and the target historical parameter value is different when different positions of the dust collector, such as filter cotton blockage and air duct blockage, the target blockage position of the dust collector with blockage condition can be determined according to the current parameter value and the target historical parameter value. The target blocking position may be the filter cotton or the air duct of the dust collector.
Step 104, based on the target blocking position, generating prompt information for indicating the blocking condition of the target blocking position of the user.
In this embodiment of the present application, the prompt information indicating that the blocking condition occurs at the target blocking position of the user may be implemented in the form of an indicator light, may also be implemented in the form of voice, may also be implemented in the form of text, or may be implemented in combination of multiple forms. When the display device is realized in a text form, the display device can be displayed in a screen display area arranged in the dust collector, or the dust collector sends text prompt information to terminal equipment with a communication link with the dust collector so as to display the text prompt information at the terminal equipment, and the corresponding terminal equipment can be, for example, a smart phone, a tablet computer, a desktop computer or central control equipment with a display screen in an intelligent home control system. The dust collector and the terminal equipment can be realized through the internet or through a short-range communication mode such as Bluetooth, ultraviolet (ZigBee), infrared rays and the like.
Therefore, when the user determines that the target blocking position is blocked according to the prompt information, the target blocking position can be directly subjected to foreign matter treatment, so that the dust collection effect of the dust collector is guaranteed, the user is not required to detect all the possible blocking conditions one by one, and the use experience effect of the user is effectively improved.
After the user clears away the foreign matter of target jam position, the user can clear away the data of storing before totally, perhaps select the data of this time using the dust catcher in-process to clear away, like this, can effectively guarantee the accurate use after clear away the foreign matter of target jam position, effectively reduced the condition that appears wrong suggestion target jam position appears blockking up, improved the accurate suggestion rate that the target jam position appears in accurate suggestion, guaranteed user's use experience effect.
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 pre-preset time length adjacent to the current moment is acquired, then the target blocking position of the dust collector with blocking condition is determined based on the current parameter value and the target historical parameter value, and the prompting information for indicating the blocking condition of the target blocking position of the user is generated based on the target blocking position. Therefore, the target blocking position of the dust collector with blocking condition is determined through the relation between the current parameter value and the target historical parameter value of the target working parameter of the motor, and then the prompting information for indicating the blocking condition of the target blocking position of the user is generated, so that the problem that the blocking position cannot be accurately distinguished when the current dust collector with blocking condition is solved, the detection method for accurately positioning and prompting the blocking 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 ensured.
Based on the foregoing embodiments, embodiments of the present application provide a fault detection method, referring to fig. 2, the method is applied to a dust collector, and the method includes the following steps:
step 201, collecting a current parameter value of a target working parameter of a motor at the current moment.
Wherein the cleaner comprises a motor and the target operating parameter comprises the current of the motor or the rotational speed of the motor.
In this embodiment, a description will be given by taking a target operating parameter of a motor as an example of a current of the motor, where when the cleaner collects a parameter value of the target operating parameter of the motor, a sampling frequency is 1 second for 1 time, and when the cleaner starts to perform dust collection, the cleaner starts to collect a current parameter value of the target operating parameter of the motor at a current moment.
Step 202, if the current parameter value is smaller than or equal to a preset first threshold value, acquiring a target history parameter value of a target working parameter at a target history time corresponding to a previous 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 this embodiment of the present application, the preset first threshold is an empirical value for determining whether the vacuum cleaner is jammed according to a large number of experiments, when the target operating parameter is a current of the motor, the corresponding first threshold is a current empirical value when the vacuum cleaner is jammed, and when the target operating parameter is a rotational speed of the motor, the corresponding first threshold is a rotational speed empirical value when the vacuum cleaner is jammed.
When the current parameter value is smaller than or equal to the first threshold value, the possibility of blockage of the dust collector is determined, and therefore, the target historical parameter value of the target working parameter is required to be further acquired to accurately determine the specific position where the blockage occurs. 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 the subsequent analysis is not needed, and the subsequent analysis is continued only when the current parameter value is judged to be blocked with the first threshold value in advance, otherwise, the subsequent analysis is not needed, and the consumption of the electric quantity of the dust collector when the processor of the dust collector performs the analysis is effectively reduced.
Step 203, 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.
In the embodiment of the application, based on the target historical parameter value, the current parameter value is analyzed, and the target blockage position of the dust collector, at which the blockage situation occurs, is determined.
And 204, generating prompt information for indicating the blocking condition of the target blocking position of the user based on the target blocking position.
In this application embodiment, after the dust catcher confirms the target jam position, generate corresponding suggestion information based on the target jam position, for example be provided with the pilot lamp that is used for instructing that different jam positions appear on the dust catcher, at this moment, can be according to the target jam position, the pilot lamp that corresponds is bright, and wherein, the colour of different pilot lamps can also be different.
Based on the foregoing embodiments, in other embodiments of the present application, step 202 may be implemented by steps 202 a-202 b:
step 202a, if the current parameter value is smaller than or equal to a preset first threshold value, determining a first historical time corresponding to a first time period adjacent to the current time, a second historical time corresponding to a second time period adjacent to the current time, and a third historical time corresponding to a third time period adjacent to the current time.
The preset time period comprises a first time period, a second time period and a third time period.
In this embodiment of the present application, if the current parameter value is less than or equal to a preset first threshold, the first history time, the second history time and the third history time are determined according to the history record information of the dust collector.
Taking the current time of 2 months, 19 days, 10 hours, 10 minutes and 10 seconds, the first time length of 1s, the second time length of 1 minute (min), the third time length of 1 hour (h) as an example for explanation, when the current parameter value is smaller than or equal to the first threshold value, the determined first historical time is 2 months, 19 days, 10 minutes, 9 seconds, corresponding to the first 1s of the current time, the determined second historical time is 2 months, 19 days, 10 minutes, 10 seconds, corresponding to the first 1min of the current time, the determined third historical time is 2 months, 17 days, 16 hours and 55 seconds, corresponding to the first 1h of the current time. In this embodiment, the third history time is 2 months, 17 days, 16 days, and 55 seconds, and is a recording time when the motor current value of the vacuum cleaner is collected during the previous use of the vacuum cleaner.
Step 202b, obtaining a first historical parameter value of the target operating parameter at a first historical time, a second historical parameter value of the target operating parameter at a second historical time, and a third historical parameter value of the target operating parameter at a third historical time.
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 history data of the target operating parameter obtained from the local storage area of the vacuum cleaner as an example, the first history parameter value corresponding to 10 minutes and 9 seconds on day 19 of 2 months is obtained from the local storage area of the vacuum cleaner, the second history parameter value corresponding to 9 minutes and 10 seconds on day 19 of 2 months is obtained from the local storage area of the vacuum cleaner, and the third history parameter value corresponding to 55 seconds on day 16 of 2 months 17 is obtained from the local storage area of the vacuum cleaner.
Correspondingly, step 203 may be implemented by steps 203 a-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 a 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 a second change rate.
Step 203c, determining a third rate of change based on the current parameter value and the third historical parameter value.
In the embodiment of the present application, the current parameter value and the third historical parameter value are calculated to obtain a third change rate.
Step 203d, determining a target occlusion position based on the first rate of change, the second rate of change, and the third rate of change.
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, step 203a may be implemented by steps a11 to 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, a value obtained by subtracting the first historical parameter value from the current parameter value is calculated to obtain a first difference value.
Step a12, determining a ratio of the first difference value to the first duration to obtain a first change rate.
In this embodiment, a first difference is calculated divided by a value of a first duration to obtain a first rate of change. Illustratively, the first rate of change is in amperes per second (a/s) for a first duration of 1 s.
Correspondingly, step 203b may be implemented by steps b11 to 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 value to the second duration to obtain a second change rate.
In the embodiment of the present application, when the second duration is 1min, the unit of the second rate of change is ampere per minute (a/min), and if it is desired that the second rate of change is consistent with the unit of the first rate of change, the second duration may be recorded as 60s.
Correspondingly, step 203c may be implemented by steps c11 to c 12:
step c11, determining a third difference between the current parameter value and the third historical parameter value.
In the embodiment of the present application, the value obtained by subtracting the third historical parameter value from the current parameter value is calculated to obtain a third difference value.
And c12, determining the ratio of the third difference value to the third duration to obtain a third change rate.
In this embodiment of the present application, a third difference value is calculated and divided by a value of a third duration to obtain a third rate of change, where when the third duration is 1h, the unit of the third rate of change is ampere per hour (a/h), and if it is desired that the unit of the third rate of change is consistent with the unit of the first rate of change, the third duration may be recorded as 3600s.
Based on the foregoing embodiment, in other embodiments of the present application, the first time period is less than the second time period, and the second time period is less than the third time period, and step 203d may be implemented by steps d11 to d 12:
and d11, if the first change rate is greater than or equal to the second threshold value, determining that the target blocking position is the air duct of the dust collector.
In the embodiment of the present application, the second threshold is an empirical value obtained according to a large number of experiments.
Step 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 blocking position is the filter cotton of the dust collector.
In the embodiment of the present application, the third threshold value and the fourth threshold value are all one empirical value obtained according to a large number of experiments. And when the units of the second threshold value, the third threshold value and the fourth threshold value are identical, the second threshold value is larger than the fourth threshold value, and the fourth threshold value is larger than the third threshold value.
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 implementation mode of software, and the effective upgrading and updating iterative process of the software implementation mode is simple and convenient.
Based on the foregoing embodiments, in other embodiments of the present application, a dust collector is provided, and referring to fig. 3, the dust collector includes a dust cup 31, a filter cotton 32, a fan 33, an air duct 34, and an air duct-to-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 dust sucked by the air duct of the dust collector, the fan 33 is used for providing suction force for the air duct 34 so as to realize that the air duct 34 sucks the dust and other garbage, and the air duct and dust cup interface is used for installing the dust cup 31 so as to realize connection between the dust cup and the air duct 34. The fan 33 and the motor are the same structure device in the dust collector.
When the dust collector works, as the working time of the dust collector is accumulated, the change of the working current of the fan of the dust collector can be shown as a dotted line B in fig. 4, if the dust collector is not blocked by an air duct in the period from zero to t5 of the accumulated working time of the dust collector, the working current of wind power shows a slow descending trend as the filter cotton is gradually blocked in the using process due to the reduction of the filter air quantity, the filter cotton is completely blocked until the working time is up to the time t5, and the working current of the fan is still in a small value and stably operates. If the air duct is blocked at the time t1, the working current of the fan can be changed rapidly in the end between t1 and t2 as shown by a solid line C in fig. 4, and then the working current of the fan is in stable smaller current working after the time t 2. In FIG. 4, the abscissa represents the accumulated duration of the fan operation, where the unit may be s, and may be denoted as t/s; the ordinate is the working current of the fan, the unit is A, the working current can be recorded as I/A, and the broken line B and the broken line C are overlapped in the range of 0-t 1.
Based on the foregoing embodiments, the embodiments of the present application provide a fault detection method, and a flow implemented by the method may be shown in fig. 5, including the following steps:
step 401, start.
Wherein, the start refers to the start of the operation of the dust collector.
Step 402, the dust collector collects the working current value of the fan.
And 403, the dust collector stores the collected working current value.
Step 404, the dust collector judges whether the current collected current working current value I is smaller than or equal to a preset blocking current threshold value Iy; if the current operating current value is greater than the blocking current threshold, step 402 is repeated, and if the current operating current value is less than or equal to the blocking current threshold, step 405 is performed.
Wherein the occlusion current threshold is the first threshold.
Step 405, the vacuum cleaner obtains a first historical current value Is before 1 second from the current time, a second historical current value Imin before 1min from the current time, and a third historical current value Ih before 1h from the current time.
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.
In step 406, the vacuum cleaner calculates the second change rate Δis of the working current of the blower according to the formula Δis=i-Is, calculates the fractional change rate Δimin of the working current of the blower according to the formula Δimin=i-Imin, and calculates the time-varying change rate Δih of the working current of the blower according to the formula Δih=i-Ih.
Step 407, the vacuum cleaner determines whether the second change rate Δis of the working current of the fan Is greater than or equal to the second threshold, if Δis Is greater than or equal to the second threshold, step 408 Is executed, and if Δis less than the second threshold, step 409 Is executed.
Step 408, the dust collector determines the air duct blockage and generates prompt information indicating the air duct blockage.
Therefore, the user can directly clean the air duct to remove the foreign matters, the smoothness of the air duct is ensured, and the dust collection efficiency of the dust collector is improved.
Step 409, the vacuum cleaner determines whether the fractional change rate Δimin of the operating current of the fan is smaller than a third threshold, if Δimin is greater than or equal to the third threshold, step 402 is repeatedly executed, and if Δimin is smaller than the third threshold, step 410 is executed.
Step 410, the vacuum cleaner determines whether the time change rate Δih of the working current of the fan is greater than or equal to the fourth threshold, if Δih is greater than or equal to the fourth threshold, step 411 is executed, and if Δih is less than the fourth threshold, step 402 is executed.
Step 411, the dust collector determines the filter cotton blockage and generates a prompt message of the filter cotton blockage.
Therefore, under the condition that the filter cotton is blocked, a user can directly replace the filter cotton, so that the effective work of the dust collector can be ensured, and the dust collection efficiency is improved.
It should be noted that, in this embodiment, the descriptions of the same steps and the same content as those in other embodiments may refer to the descriptions in other embodiments, and are not repeated 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 pre-preset time length adjacent to the current moment is acquired, then the target blocking position of the dust collector with blocking condition is determined based on the current parameter value and the target historical parameter value, and the prompting information for indicating the blocking condition of the target blocking position of the user is generated based on the target blocking position. Therefore, the target blocking position of the dust collector with blocking condition is determined through the relation between the current parameter value and the target historical parameter value of the target working parameter of the motor, and then the prompting information for indicating the blocking condition of the target blocking position of the user is generated, so that the problem that the blocking position cannot be accurately distinguished when the current dust collector with blocking condition is solved, the detection method for accurately positioning and prompting the blocking 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 ensured.
Based on the foregoing embodiments, an embodiment of the present application provides a fault detection method, referring to fig. 6, the method is applied to a dust collector, and the method includes the following steps:
step 501, collecting a current parameter value of a target working parameter of a motor at the current moment.
Wherein the cleaner comprises a motor and the target operating parameter comprises the current of the motor or the rotational speed of the motor.
Step 502, determining a first historical time corresponding to a first time period before the current time, a second historical time corresponding to a second time period before the current time, and a third historical time corresponding to a third time period before the current time.
The preset time period comprises a first time period, a second time period and a third time period.
Step 503, obtaining a first historical parameter value of the target operating parameter at a first historical time, a second historical parameter value of the target operating parameter at a second historical time, and a third historical parameter value of the target operating parameter at a third historical time.
Wherein the historical parameter values include a first historical parameter value, a second historical parameter value, and a third historical parameter value.
Step 504, determining a first rate of change based on the current parameter value and the first historical parameter value.
Step 505, determining a second rate of change based on the current parameter value and a second historical parameter value.
Step 506, determining a third rate of change based on the current parameter value and the third historical parameter value.
Step 507, determining a target occlusion position based on the first rate of change, the second rate of change, and the third rate of change.
Step 508, based on the target blocking position, generating prompt information for indicating that the blocking condition occurs at the target blocking position of the user.
Based on the foregoing embodiments, in other embodiments of the present application, the steps are based on the foregoing embodiments, and in other embodiments of the present application, the step 504 may be implemented by the steps 504a to 504 b:
step 504a, determining a first difference between the current parameter value and the first historical parameter value.
Step 504b, determining a ratio of the first difference value to the first duration, to obtain a first rate of change.
Correspondingly, step 505 may be implemented by steps 505 a-505 b:
step 505a, determining a second difference between the current parameter value and a second historical parameter value.
Step 505b, determining a ratio of the second difference value to the second duration, to obtain a second rate of change.
Correspondingly, step 506 may be implemented by steps 506 a-506 b:
step 506a, determining a third difference between the current parameter value and a third historical parameter value.
Step 506b, determining a ratio of the third difference value 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 time period is less than the second time period, and the second time period is less than the third time period, and step 507 may be implemented by steps 507a to 507 b:
step 507a, if the first rate of change is greater than or equal to the second threshold, determining that the target blocking position is the air duct of the dust collector.
Step 507b, if the first rate of change is less than the second threshold, the second rate of change is less than the third threshold, and the third rate of change is greater than or equal to the fourth threshold, determining that the target clogging position is the filter cotton of the dust collector.
It should be noted that, in this embodiment, the descriptions of the same steps and the same content as those in other embodiments may refer to the descriptions in other embodiments, and are not repeated 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 pre-preset time length adjacent to the current moment is acquired, then the target blocking position of the dust collector with blocking condition is determined based on the current parameter value and the target historical parameter value, and the prompting information for indicating the blocking condition of the target blocking position of the user is generated based on the target blocking position. Therefore, the target blocking position of the dust collector with blocking condition is determined through the relation between the current parameter value and the target historical parameter value of the target working parameter of the motor, and then the prompting information for indicating the blocking condition of the target blocking position of the user is generated, so that the problem that the blocking position cannot be accurately distinguished when the current dust collector with blocking condition is solved, the detection method for accurately positioning and prompting the blocking 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 ensured.
Based on the foregoing embodiments, embodiments of the present application provide a fault detection device, as shown with reference to fig. 7, the fault detection device 6 may include: an acquisition unit 61, an acquisition unit 62, a determination unit 63, and a generation unit 64; wherein:
a collecting unit 61, configured to collect a current parameter value of a target operating parameter of the motor at a current moment; wherein the dust collector comprises a motor;
an obtaining unit 62, configured to obtain a target historical parameter value of a target historical time target working parameter corresponding to a pre-preset time period 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;
a determining unit 63 for determining a target clogging position of the dust collector where the clogging condition occurs, based on the current parameter value and the target history parameter value;
the generating unit 64 is configured to generate, based on the target jam position, prompt information for indicating that the jam condition occurs at the target jam position of the user.
In other embodiments of the present application, the determining unit is further configured to:
and if the current parameter value is smaller than or equal to a preset first threshold value, acquiring a target historical parameter value of a 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 history parameter value of the target working parameter at the target history time corresponding to the previous preset duration adjacent to the current time, may be implemented by the following steps:
determining a first historical time corresponding to a first time period before the current time, a second historical time corresponding to a second time period before the current time and a third historical time corresponding to a third time period before 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 determine, when the determining unit determines, based on the current parameter value and the target historical parameter value, a target blockage position at which a blockage situation occurs in the vacuum cleaner, by:
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 a second historical parameter value;
determining a third rate of change based on the current parameter value and the third historical parameter value;
a target occlusion position 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, based on the current parameter value and the first historical parameter value, that the first rate of change is achieved by:
determining a first difference between the current parameter value and the first historical parameter value;
determining the ratio of the first difference value 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, comprising:
determining a second difference between the current parameter value and a second historical parameter value;
determining the ratio of the second difference value 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, comprising:
determining a third difference between the current parameter value and a third historical parameter value;
and determining the ratio of the third difference value to the third duration to obtain a third change rate.
In other embodiments of the present application, the first time period is less than the second time period, the second time period is less than the third time period, and the determining unit is configured to determine, when determining the target occlusion position based on the first rate of change, the second rate of change, and the third rate of change, by:
If the first change rate is greater than or equal to the second threshold value, determining that the target blocking position is the air duct of the dust collector;
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 blocking position is the filter cotton of the dust collector.
In other embodiments of the present application, the target operating parameter comprises a current of the motor or a rotational speed of the motor.
It should be noted that, in the specific implementation process of information interaction between the units and the modules in this embodiment, reference may be made to the implementation process in the fault detection method provided in the embodiment corresponding to fig. 1 to 2 and fig. 6, which is not repeated herein.
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 pre-preset time length adjacent to the current moment is acquired, then the target blocking position of the dust collector with blocking condition is determined based on the current parameter value and the target historical parameter value, and the prompting information for indicating the blocking condition of the target blocking position of the user is generated based on the target blocking position. Therefore, the target blocking position of the dust collector with blocking condition is determined through the relation between the current parameter value and the target historical parameter value of the target working parameter of the motor, and then the prompting information for indicating the blocking condition of the target blocking position of the user is generated, so that the problem that the blocking position cannot be accurately distinguished when the current dust collector with blocking condition is solved, the detection method for accurately positioning and prompting the blocking 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 ensured.
Based on the foregoing embodiments, embodiments of the present application provide a dust collector, referring to fig. 8, the dust collector 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 air duct 72;
the processor 73 is configured to implement the steps of the fault detection method shown in fig. 1-2 and fig. 6, and will not be described in detail herein.
Based on the foregoing embodiments, embodiments of the present application provide a computer-readable storage medium, simply referred to as a storage medium, which stores one or more programs that may be executed by one or more processors to implement the fault detection method implementation process provided in the embodiments corresponding to fig. 1-2 and 6, which is not described herein.
It will be appreciated by those skilled in the art that 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, magnetic 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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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 foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application.
Claims (8)
1. A method of fault detection, the method comprising:
collecting 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 pre-preset time length adjacent to the current time; wherein the preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value; the obtaining the target historical parameter value of the target working parameter at the target historical time corresponding to the pre-preset time length adjacent to the current time comprises the following steps:
Determining a first historical time corresponding to a first time period before the current time, a second historical time corresponding to a second time period before the current time and a third historical time corresponding to a third time period before 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;
determining a target blockage position of the dust collector with blockage based on the current parameter value and the target historical parameter value; the determining, based on the current parameter value and the target historical parameter value, a target blockage position at which a blockage situation occurs in the dust collector includes:
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 historical 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;
and generating prompt information for indicating the blocking condition of the target blocking position of the user based on the target blocking position.
2. The method according to claim 1, wherein the obtaining the target history parameter value of the target operation parameter at the target history time corresponding to the previous preset time period adjacent to the current time includes:
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 time corresponding to a preset time length adjacent to the current time.
3. The method of claim 1, wherein the determining a first rate of change based on the current parameter value and the first historical parameter value comprises:
determining a first difference between the current parameter value and the first historical parameter value;
determining the ratio of the first difference value 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 between the current parameter value and the second historical parameter value;
determining the ratio of the second difference value to the second duration to obtain the second change rate;
correspondingly, the determining a third rate of change based on the current parameter value and the third historical parameter value includes:
determining a third difference between the current parameter value and the third historical parameter value;
and determining the ratio of the third difference value to the third duration to obtain the third change rate.
4. The method of claim 1, wherein the first time period is less than the second time period, the second time period is less than the third time period, the determining the target occlusion location 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 greater than or equal to a second threshold value, determining that the target blocking position is the 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 blocking position is the filter cotton of the dust collector.
5. A method according to any one of claims 1 to 2, wherein the target operating parameter comprises the current of the motor or the rotational speed of the motor.
6. A fault detection device, the device comprising: the device comprises an acquisition unit, a determination unit and a generation 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 time corresponding to a preset time length adjacent to the current time; wherein the preset duration comprises at least one duration, and the target historical parameter value comprises at least one parameter value; the obtaining the target historical parameter value of the target working parameter at the target historical time corresponding to the pre-preset time length adjacent to the current time comprises the following steps:
determining a first historical time corresponding to a first time period before the current time, a second historical time corresponding to a second time period before the current time and a third historical time corresponding to a third time period before 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;
the determining unit is used for 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; the determining, based on the current parameter value and the target historical parameter value, a target blockage position at which a blockage situation occurs in the dust collector includes:
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 historical 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;
the generating unit is used for generating prompt information for indicating the blocking condition of the target blocking position of the user based on the target blocking position.
7. 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 as claimed in any one of claims 1 to 5.
8. A storage medium having a fault detection program stored thereon, which when executed by a processor, implements the steps of the fault detection method according to any one of claims 1 to 5.
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