Filter status detection method, electronic device, cleaning device and storage medium

Abstract

The present invention discloses a filter status detection method, electronic device, cleaning device, and storage medium. The cleaning device includes a suction fan, a garbage collection container, and a filter. The suction fan is connected to the garbage collection container, and the filter is disposed in a passage connecting the suction fan and the garbage collection container. A detection unit is used to detect airflow parameters in the area where the filter is located. The filter status detection method includes: obtaining a first airflow parameter detected by the detection unit; determining a first parameter range and determining whether the first airflow parameter is within the first parameter range; if not, determining that the filter status is abnormal and executing a first abnormal status process. The technical solution of the present invention prevents the cleaning device from operating when the filter is in an inoperative state, thereby ensuring the safe operation of the cleaning device.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to a filter status detection method, electronic equipment, cleaning equipment and storage medium. Background Art

[0002] With the development of smart homes, various smart cleaning devices have become commonplace in homes, becoming essential cleaning assistants. Common smart cleaning devices include cleaning robots, floor scrubbers, and vacuum cleaners. A floor scrubber typically consists of a suction fan, an air duct, a garbage collection container, a suction channel, and a suction port. The suction fan is connected to the top of the garbage collection container via the air duct, which in turn connects the garbage collection container to the suction port via the suction channel. When the floor scrubber is operating, the suction fan creates a negative pressure in the garbage collection container through the air duct, drawing garbage from the floor through the suction port and into the garbage collection container. Because the garbage drawn into the garbage collection container may contain sewage or moisture, water may be present in the garbage collection container. To prevent garbage from the garbage collection container from being drawn into the suction fan and potentially damaging it, a filter is installed in the air duct to remove garbage and / or moisture from the airflow reaching the suction fan through the air duct.

[0003] However, when the floor scrubber is used for too long or when sucking sewage or wet garbage for a long time, there may be too much water (i.e., high humidity) accumulated on the filter, which can easily cause the filter to fail, causing the cleaning equipment to operate in an abnormal filter state, reducing the safety of the cleaning equipment operation. Summary of the Invention

[0004] The present invention provides a filter status detection method, which aims to prevent a cleaning device from operating in a filter failure state and ensure the safe operation of the cleaning device.

[0005] To achieve the above-mentioned object, the present invention proposes a filter status detection method, which is applied to a cleaning device, wherein the cleaning device includes a suction fan, a garbage collection container, and a filter, wherein the suction fan is connected to the garbage collection container, and the filter is arranged in a channel connecting the suction fan and the garbage collection container. The cleaning device also includes a detection unit, which is used to detect airflow parameters at the location of the detection unit. The filter status detection method includes:

[0006] Acquiring a first airflow parameter detected by the detection unit;

[0007] determining a first parameter range, and determining whether the first airflow parameter is within the first parameter range;

[0008] If not, it is determined that the filter state is abnormal, and a first abnormal state process is executed.

[0009] In some embodiments, before obtaining the first airflow parameter detected by the detection unit, the filter status detection method further includes:

[0010] When the suction fan is started, obtaining a second airflow parameter currently detected by the detection unit;

[0011] determining a second parameter range, and determining whether the second airflow parameter is within the second parameter range;

[0012] If yes, executing the step of obtaining the first airflow parameter detected by the detection unit;

[0013] If not, it is determined that the filter state is abnormal, and a second abnormal state process is executed.

[0014] In some embodiments, determining the second parameter range includes:

[0015] Obtain a preset second parameter range; or,

[0016] An operating parameter of the suction fan is obtained, and a preset second parameter range corresponding to the operating parameter is determined.

[0017] In some embodiments, the cleaning device further comprises a capacitance detection device and a capacitor provided on the filter, wherein the capacitance detection device is configured to detect a capacitance reading of the capacitor; and determining the second parameter range further comprises:

[0018] obtaining a capacitance reading of the capacitance detection device, and determining the moisture content of the filter based on the capacitance reading;

[0019] determining a second parameter range compensation amount according to a difference between the humidity and a preset humidity threshold;

[0020] The second parameter range is corrected according to the second parameter range compensation amount.

[0021] In some embodiments, determining the first parameter range includes:

[0022] Acquiring operating parameters of the suction fan and determining a preset first parameter range corresponding to the operating parameters;

[0023] determining a first parameter range compensation amount according to a deviation value of the second airflow parameter from the second parameter range;

[0024] The first parameter range is corrected according to the first parameter range compensation amount.

[0025] In some embodiments, performing the second abnormal state processing includes:

[0026] Controlling the suction fan to stop working; and / or,

[0027] Provide preset exception prompts.

[0028] In some embodiments, the detection unit includes an air pressure detection device, the second airflow parameter is air pressure, and the second parameter range is greater than or equal to a second air pressure threshold;

[0029] Alternatively, the detection unit includes an airflow velocity detection device, the second airflow parameter is the airflow velocity; and the second parameter range is greater than or equal to a second velocity threshold.

[0030] In some embodiments, determining the first parameter range includes:

[0031] Obtaining a preset first parameter range; or,

[0032] An operating parameter of the suction fan is obtained, and a preset first parameter range corresponding to the operating parameter is determined.

[0033] In some embodiments, the detection unit includes an air pressure detection device, the first airflow parameter is air pressure, and the first parameter range is greater than or equal to a first air pressure threshold;

[0034] Alternatively, the detection unit includes an airflow velocity detection device, the first airflow parameter is the airflow velocity, and the first parameter range is greater than or equal to a first velocity threshold.

[0035] In some embodiments, performing the first abnormal state processing includes:

[0036] Controlling the suction fan to stop working; and / or,

[0037] The filter is subjected to a dehumidification treatment.

[0038] In some embodiments, the step of obtaining the first airflow parameter detected by the detection unit is performed in real time or periodically.

[0039] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program implements the steps of the above-mentioned filter status detection method when executed by the processor.

[0040] The present invention also proposes a cleaning device, including a suction fan, a garbage collection container, a filter, a detection unit, and the above-mentioned electronic device, wherein the suction fan is connected to the garbage collection container, and the filter is arranged in a channel connecting the suction fan and the garbage collection container; the detection unit is used to detect the airflow parameters at its location, and the electronic device is communicatively connected to the suction fan and the detection unit.

[0041] In some embodiments, the detection unit is located between the filter and the suction fan, and the detection unit is disposed adjacent to the filter.

[0042] The present invention further provides a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the filter status detection method described above are implemented.

[0043] The technical solution of the present invention is to set a detection unit in the cleaning equipment to detect the airflow parameters in the area where the filter is located. By obtaining the first airflow parameter detected by the detection unit and comparing it with the first parameter range, it is confirmed whether the airflow parameter exceeds the first parameter range. When it is determined that the first airflow parameter exceeds the first parameter range, the filter is judged to be in an abnormal state (such as excessive humidity and filter failure). At this time, the first abnormal state processing (for example, shutdown, alarm, dehumidification, etc.) is performed. In this way, the cleaning equipment is prevented from working when the filter is in a failed state, and the moisture on the filter is avoided from being sucked into the suction fan, thereby protecting the safety of the suction fan, that is, ensuring the safe operation of the cleaning equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a flow chart of a first embodiment of a filter status detection method according to the present invention;

[0045] Figure 2 This is a flow chart of a second embodiment of a filter status detection method according to the present invention;

[0046] Figure 3 This is a flow chart of a third embodiment of a filter status detection method according to the present invention;

[0047] Figure 4 This is a flow chart of a fourth embodiment of a filter status detection method according to the present invention;

[0048] Figure 5 A schematic diagram of the structure of an electronic device in a hardware operating environment involved in an embodiment of the present invention;

[0049] Figure 6 This is a partial structural diagram of an embodiment of the cleaning equipment of the present invention. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0052] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0053] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] The cleaning equipment described in the present invention includes sweeping robots, floor scrubbers, etc. Since some water will gradually be filtered and accumulated on the filter during the operation of the cleaning equipment, for example, in floor scrubber products, after a long period of operation, the filter is prone to fail due to excessive water accumulation (i.e., excessive humidity), and the water on the filter is sucked into the suction fan, causing damage to the suction fan and affecting the safe operation of the cleaning equipment. To this end, the inventors of this application, based on the working principle inside the cleaning equipment, found that the state of the filter (such as the degree of humidity) will affect the air permeability of the filter, that is, the greater the humidity of the filter, the greater the air permeability resistance and the smaller the air permeability. It is only necessary to determine the air permeability of the filter to know the filter state. In addition, it was found that the air permeability of the filter will directly affect the airflow parameters in the filter (for example, parameters such as air pressure and airflow velocity), thereby affecting the airflow parameters in the nearby areas on both sides of the filter. The smaller the air permeability of the filter (that is, the smaller the ventilation cross-section), the airflow parameters on both sides of the filter (the air inlet side and the air outlet side) are affected and change accordingly; based on the correlation between the various factors discovered above, the inventors of this application obtained a technical conception that can accurately and effectively determine the filter state by analyzing the airflow parameters in the area where the filter is located. Based on this technical conception, a filter state detection method is proposed to detect the state of the filter during the operation of the cleaning equipment, so that when the filter state fails abnormally (excessive humidity or other abnormal failure conditions), abnormal processing is performed to ensure the safe operation of the cleaning equipment.

[0055] The filter status detection method of this application is mainly used in cleaning equipment. Figure 6 The cleaning device includes a suction fan 10, a channel 20, a garbage collection container 30, a filter 40, and a detection unit 50. The suction fan 10 is connected to the garbage collection container 30 through the channel 20. The filter 40 is set in the channel 20. The filter 40 is used to prevent garbage, moisture, dust, etc. in the garbage collection container 30 from being sucked into the suction fan 10. The detection unit 50 is used to detect the airflow parameters at the location where the detection unit 50 is located. The detection unit 50 can be set in the area near the air inlet side of the filter 40 or the area near the air outlet side of the filter 40. Figure 6 In the example, the detection unit 50 is set between the filter 40 and the suction fan 10; the airflow parameters can be airflow velocity, air pressure, etc. In some usage scenarios, the cleaning equipment generates sewage during cleaning. The sewage generated by the cleaning equipment during cleaning is sucked by the suction fan 10, and the sewage is sucked into the sewage inlet channel and stored in the garbage collection container. The implementation terminal of the filter 40 status detection method of the present application can be a cleaning device or an electronic device. In this article, the implementation terminal takes the electronic device as an example to explain the status detection method in detail.

[0056] See Figure 1 , Figure 1 It is a flow chart of the first embodiment of the filter status detection method of the present invention.

[0057] In this embodiment, the filter status detection method includes:

[0058] Step S10, obtaining a first airflow parameter detected by the detection unit;

[0059] In this embodiment, the detection unit can be a unit for detecting airflow velocity, air pressure or other parameters; the first airflow parameter obtained can be the airflow parameter currently detected in real time by the detection unit, or the airflow parameter detected last time by the detection unit, or the airflow parameter detected most recently, or any airflow parameter detected within the most recent preset time (such as 5 seconds). Among them, step S10 can be executed in real time or on a scheduled basis (such as once every 20 seconds), or it can be executed under triggering conditions (for example, when a detection instruction is received, wherein the detection instruction can be generated by the user pressing the detection function key on the cleaning device, or sent by the user to the electronic device through the app of the smart terminal, or automatically generated by the electronic device when it detects that the running time of the cleaning device exceeds the preset time, etc.).

[0060] Step S20, determining a first parameter range, and judging whether the first airflow parameter is within the first parameter range;

[0061] The first parameter range may be a parameter range pre-set in the electronic device (may include one or more pre-set parameter ranges), or a parameter range obtained according to a preset algorithm rule. For example, a preset algorithm is used to perform calculations based on the working parameters of the cleaning equipment to determine the first parameter range. The first parameter range represents the normal range of the airflow parameter in the area where the filter is located when the filter is in a normal state; for example, the detection unit is set in the vicinity of the air outlet side of the filter, and when the airflow parameter is air pressure, the first parameter range is air pressure P ≥ 0.6 standard atmospheric pressure; for another example, when the airflow parameter is air velocity, the first parameter range is air velocity V ≥ 7m / s. After obtaining the first airflow parameter detected by the detection unit and determining the first parameter range, the first airflow parameter is compared with the first parameter range to determine whether the first airflow parameter is within the first parameter range, that is, to determine whether the filter state is normal.

[0062] Step S30: If not, it is determined that the filter state is abnormal, and the first abnormal state processing is executed.

[0063] When it is determined that the first airflow parameter is not within the first parameter range, it means that the airflow parameter in the area where the filter is located is out of the normal range, then the filter state is determined to be abnormal, and the first abnormal state processing is performed to prevent the cleaning equipment from operating in abnormal states such as excessive filter humidity, thereby avoiding damage to the cleaning equipment and ensuring the safe operation of the cleaning equipment. Optionally, the first abnormal state processing may include: controlling the suction fan to stop working, dehumidifying the filter, controlling the suction fan to reduce power operation, issuing a fault alarm, and other processing. Of course, when it is determined that the first airflow parameter is within the first parameter range, that is, when the airflow parameter in the area where the filter is located is within the normal range, no processing may be performed, or data recording or other processing may be performed.

[0064] Among them, the dehumidification treatment of the filter may include one or more of the following treatments: 1. controlling the filter to perform centrifugal movement to shake off the moisture accumulated on the filter; 2. controlling the heating device to heat the filter to dry the moisture accumulated on the filter; 3. driving the filter to vibrate at high frequency through a vibration device to shake off the moisture accumulated on the filter.

[0065] For example, the detection unit is set in the area near the air outlet side of the filter, the air flow parameter is air pressure, and the first parameter range is the first air pressure range. During the cleaning process of the cleaning equipment, the electronic device obtains the first air pressure detected by the detection unit and determines that the first air pressure range is P≥0.6 standard atmospheric pressure. The obtained first air pressure is compared with 0.6 standard atmospheric pressure to determine whether the first air pressure is greater than or equal to 0.6 standard atmospheric pressure; when the first air pressure (assuming it is 0.5 standard atmospheric pressure) is less than 0.6 standard atmospheric pressure, it indicates that the air at the location of the detection unit is thin, which means that the air permeability of the filter is too low and is in an abnormal state. At this time, the electronic device determines that the filter is abnormal, and the electronic device executes one or more of the following processes: controlling the suction fan to stop working, dehumidifying the filter, controlling the suction fan to reduce power operation, and issuing a fault alarm, so as to prevent moisture on the filter from being sucked into the suction fan; when the first air pressure (assuming it is 0.7 standard atmospheric pressure) is greater than 0.6 standard atmospheric pressure, it means that the air permeability of the filter is normal and is in a normal state, allowing the cleaning equipment to continue to work normally.

[0066] The technical solution of this embodiment is based on a detection unit set in the cleaning equipment to detect the airflow parameters of the area where the filter is located. By obtaining the first airflow parameter detected by the detection unit and comparing it with the first parameter range, it is confirmed whether the airflow parameter exceeds the first parameter range. When it is determined that the first airflow parameter exceeds the first parameter range, the filter is judged to be in an abnormal state (such as excessive humidity and filter failure). At this time, the first abnormal state processing (for example, shutdown, alarm, dehumidification, etc.) is performed. In this way, the cleaning equipment is prevented from working in a state where the filter fails, and the moisture on the filter is avoided from being sucked into the suction fan, thereby protecting the safety of the suction fan, that is, ensuring the safe operation of the cleaning equipment.

[0067] Of course, in the technical solution of this embodiment, the abnormal state of the filter can also be a state in which the air permeability of the filter is too low due to excessive dust accumulation. Therefore, it can also be applied to vacuum cleaner products for dust collection and cleaning. That is, by judging whether the first airflow parameter is within the first parameter range, it can be determined whether the filter state is excessive dust accumulation.

[0068] See Figure 2 , Figure 2 2 is a flow chart of the second embodiment of the filter status detection method of the present invention.

[0069] This embodiment is based on the solution of the first embodiment. In this embodiment, before step S10, the filter status detection method further includes:

[0070] Step S40, when the suction fan is started, obtaining the second airflow parameter currently detected by the detection unit;

[0071] Each time the suction fan is started in the cleaning device, the second airflow parameter currently detected by the detection unit is obtained, that is, the airflow parameter of the filter area when the suction fan is just started. The second airflow parameter reflects the initial state of the filter when the cleaning device is started.

[0072] Step S50, determining a second parameter range, and judging whether the second airflow parameter is within the second parameter range;

[0073] The second parameter range can be a parameter range pre-set in the electronic device, or a parameter range obtained according to a preset algorithm rule. For example, a preset algorithm is used to calculate based on the working parameters of the cleaning equipment to determine the second parameter range. Since the aging of the filter will also directly affect the air permeability of the filter, the second parameter range can be the normal range of the airflow parameter of the area where the filter is located when the filter is not aged to the point of functional failure; for example, the detection unit is set in the vicinity of the air outlet side of the filter, and when the airflow parameter is air pressure, the second parameter range is air pressure P ≥ 0.8 standard atmospheric pressure; for another example, when the airflow parameter is air velocity, the second parameter range is air velocity V ≥ 5.5 m / s. After obtaining the second airflow parameter detected by the detection unit and determining the second parameter range, the second airflow parameter is compared with the second parameter range to determine whether the second airflow parameter is within the second parameter range, that is, a self-test is performed when the cleaning equipment is started to determine whether the filter has reached the aging level of functional failure.

[0074] Step S60: If not, it is determined that the filter state is abnormal, and the second abnormal state processing is executed.

[0075] When it is determined that the second airflow parameter is not within the second parameter range, indicating that the airflow parameter in the area where the filter is located is beyond the normal range, it is determined that the filter has reached the degree of aging that causes functional failure (being abnormal), and the second abnormal state processing is performed to prevent the cleaning equipment from working in the abnormal state of the filter, avoid damage to the equipment of the cleaning equipment, and ensure the safe operation of the cleaning equipment. Optionally, the second abnormal state processing may include: controlling the suction fan to stop working, performing one or more of the preset abnormal prompts (such as prompting filter aging, prompting filter replacement), etc. When it is determined that the second airflow parameter is within the second parameter range, that is, the airflow parameter in the area where the filter is located is within the normal range, the aging of the filter has not reached the degree of functional failure and can continue to be used. At this time, the subsequent process (i.e., the processing flow of S10 to S30) is continued.

[0076] For example, the detection unit is set in the area near the air outlet side of the filter, the airflow parameter is air pressure, and the second parameter range is the second air pressure range. When the cleaning device is started, the electronic device obtains the second air pressure detected by the detection unit, and determines that the second air pressure range is P≥0.8 standard atmospheric pressure. The obtained second air pressure is compared with 0.3 standard atmospheric pressure to determine whether the second air pressure is greater than or equal to 0.8 standard atmospheric pressure; when the second air pressure (assuming it is 0.75 standard atmospheric pressure) is less than 0.8 standard atmospheric pressure, it is judged that the air permeability of the filter is too low and the aging is serious (causing the filter function to fail). At this time, the electronic device determines that the filter is abnormal, and the electronic device executes processing such as controlling the suction fan to stop working or prompting to replace the filter, effectively detecting the aging of the filter, and facilitating the user to replace the filter in time; when the second air pressure (assuming it is 0.85 standard atmospheric pressure) is greater than 0.8 standard atmospheric pressure, it means that the air permeability of the filter is normal and is in a normal state, and the electronic device continues to execute subsequent processes.

[0077] The technical solution of this embodiment is to obtain the second airflow parameter detected by the detection unit each time the suction fan is started, determine the second parameter range, and judge whether the second airflow parameter is within the second parameter range, so as to perform a startup self-test to detect whether the aging of the filter has reached the level that causes the function to fail; the operation will continue only when it is determined that the filter has not aged, and when it is determined that the aging of the filter has reached the level that causes the function to fail, the second exception processing is performed. In this way, the aging condition of the filter is effectively detected, which facilitates the user to replace the filter in time and ensure the safe operation of the cleaning equipment.

[0078] In some embodiments, determining the second parameter range in step S50 may include obtaining a preset second parameter range. Specifically, the second parameter range is a parameter range pre-set in the electronic device, for example, the detection unit is located near the air outlet side of the filter, the air pressure P is ≥ 0.8 standard atmospheres, or the airflow velocity V is ≥ 5.5 m / s.

[0079] In some embodiments, determining the second parameter range in step S50 may include: obtaining the operating parameters of the suction fan, and determining a preset second parameter range corresponding to the operating parameters. Since cleaning equipment usually has different operating gears or modes, the operating power of the suction fan is different in different operating gears or modes, and the suction force of the suction fan is also different. Under different suction forces, the airflow parameters in the area where the filter is located will be different (for example, the greater the suction force, the greater the airflow speed and the lower the air pressure). Therefore, under different operating states of the suction fan, the normal range of the airflow parameters in the area where the filter is located will be different. Therefore, this embodiment uses multiple second parameter ranges preset in the electronic device, which correspond to different operating parameters of the suction fan. For example, operating power, operating gear, operating current, operating voltage, etc.), by obtaining the operating parameters of the suction fan, determining the second parameter range corresponding to the obtained operating parameters (for example, the suction fan has three preset power gears, namely: 150W, 180W and 210W, and the second parameter ranges corresponding to the three preset power gears are: air pressure P ≥ 0.9 standard atmospheric pressure, air pressure P ≥ 0.85 standard atmospheric pressure, air pressure P ≥ 0.8 standard atmospheric pressure, or respectively: air flow velocity V ≥ 5.5m / s, air flow velocity V ≥ 5.75m / s, air flow velocity V ≥ 6m / s; for another example, the operating power of the suction fan can be between 100W and 210W. The second parameter range corresponding to the operating power of the suction fan is air pressure P ≥ preset air pressure, and the preset air pressure is a parameter in the range of 0.9 standard atmospheric pressure to 0.8 standard atmospheric pressure. For example, the preset air pressure is 0.85 standard atmospheric pressure. Or the second parameter range corresponding to the operating power of the suction fan is air flow velocity V ≥ preset air flow velocity, and the preset air flow velocity is a parameter in the range of 5.5m / s to 6m / s. For example, the preset air flow velocity is 10m / s. The second air flow parameter detected by the detection unit is compared with the second parameter range to determine whether the filter aging has reached the level of functional failure, so as to ensure the accuracy of the filter aging detection.

[0080] See Figure 3 , Figure 3 2 is a flow chart of the third embodiment of the filter status detection method of the present invention.

[0081] This embodiment is based on the second embodiment described above. In this embodiment, the cleaning device further includes a capacitance detection device and a capacitor located within the filter. The capacitance detection device is configured to detect the capacitance reading of the capacitor. Varying humidity levels within the filter can cause changes in the dielectric between the two substrates of the capacitor, thereby altering the capacitance reading of the capacitor. For example, if the filter is a HEPA filter, the capacitor may include two electrodes, one located in the gap between the HEPAs, with the two electrodes forming a capacitor.

[0082] In this embodiment, determining the second parameter range in step S50 includes:

[0083] Step S51, obtaining a preset second parameter range, or obtaining an operating parameter of the suction fan, and determining a preset second parameter range corresponding to the operating parameter;

[0084] Step S52, obtaining a capacitance reading of a capacitance detection device, and determining the humidity of the filter based on the capacitance reading;

[0085] The electronic device may pre-set a mapping relationship between the humidity of the filter and the capacitance reading, or may pre-determine a calculation conversion method between the humidity and the capacitance reading. Based on the obtained capacitance reading, the humidity of the filter may be directly determined through the mapping relationship or the calculation conversion method.

[0086] Step S53, determining a second parameter range compensation amount according to the difference between the humidity and a preset humidity threshold;

[0087] Step S54: correcting the second parameter range according to the second parameter range compensation amount.

[0088] Since humidity affects the air permeability of the filter, when the cleaning device is restarted shortly after use, or when the cleaning device is shut down and restarted, the filter itself still retains a certain amount of moisture and is in a damp state. The second airflow parameter detected at this time is the airflow parameter affected by the humidity of the filter. At this time, if the second airflow parameter is directly compared with the second parameter range obtained in step S51, the filter aging degree judgment result obtained will be inaccurate and easily misjudged. To eliminate the portion of the second airflow parameter affected by the humidity of the filter, in this embodiment, the humidity determined in step S52 is subtracted from a preset humidity threshold (for example, the humidity of the filter when it leaves the factory). Based on the obtained difference, a second parameter range compensation amount is determined. The second parameter range compensation amount is used to offset the interference of the residual moisture in the filter on the second airflow parameter when the cleaning device is started. Then, the second parameter range obtained in step S51 is corrected according to the determined second parameter range compensation amount, that is, the second parameter range is compensated for the airflow parameter numerical portion affected by the humidity of the filter. Among them, the method of determining the compensation amount for the second parameter range based on the difference may be: a mapping relationship or conversion method between the difference and the compensation amount for the second parameter range may be pre-set in the electronic device, and there may be multiple mapping relationships or conversion methods pre-set in the electronic device, which correspond to the operating parameters of the suction fan respectively. According to the obtained difference (that is, the difference between the determined humidity and the preset humidity threshold), the compensation amount for the second parameter range can be directly determined through the corresponding mapping relationship or the calculation conversion method.

[0089] For example, the detection unit is set in the area near the air outlet side of the filter. If the airflow parameter is air pressure, the second parameter range obtained according to step S51 is air pressure P≥0.8 standard atmospheric pressure, and the determined second parameter range compensation amount is 0.03 standard atmospheric pressure, then the corrected second parameter range is air pressure P≥(0.8+0.03) standard atmospheric pressure; if the airflow parameter is airflow velocity, the second parameter range obtained according to step S51 is airflow velocity V≥6m / s, and the determined second parameter range compensation amount is 0.2m / s, then the corrected second parameter range is airflow velocity V≥(6-0.2)m / s.

[0090] The technical solution of this embodiment, after obtaining the second parameter range, also determines the humidity of the filter to determine the second parameter range compensation amount based on the difference between the humidity and the preset humidity threshold, and corrects the obtained second parameter range based on the second parameter range compensation amount, thereby compensating for the numerical portion of the airflow parameter affected by the humidity of the filter in the second parameter range to offset the numerical portion of the airflow parameter affected by the humidity of the filter in the second airflow parameter, thereby making the detection of the aging degree of the filter more accurate.

[0091] In some embodiments, determining the first parameter range in step S20 may include obtaining a preset first parameter range. That is, the first parameter range is a parameter range preset in the electronic device, for example, air pressure P ≥ 0.6 standard atmospheres, or air flow velocity V ≥ 8 m / s.

[0092] In some embodiments, determining the first parameter range in step S20 may include: obtaining the operating parameters of the suction fan, and determining a preset first parameter range corresponding to the operating parameters. Since cleaning equipment usually has different operating gears or modes, the operating power of the suction fan is different in different operating gears or modes, and the suction force of the suction fan is also different. Under different suction forces, the airflow parameters of the area where the filter is located will be different. Therefore, under different operating conditions of the suction fan, the normal range of the airflow parameters of the area where the filter is located will be different. Therefore, in this embodiment, multiple first parameter ranges are preset in the electronic device, corresponding to different operating parameters of the suction fan (for example, operating power, operating gear, operating current, operating voltage, etc.). By obtaining the operating parameters of the suction fan, the first parameter range corresponding to the obtained operating parameters is determined (for example, the detection unit is set in the vicinity of the air outlet side of the filter, and the suction fan has three preset power gears, namely: 150W, 180W and 210W, and the three preset power gears correspond to The first parameter ranges are: air pressure P ≥ 0.7 standard atmospheric pressure, air pressure P ≥ 0.65 standard atmospheric pressure, air pressure P ≥ 0.6 standard atmospheric pressure; or respectively: air flow velocity V ≥ 7 m / s, air flow velocity V ≥ 7.5 m / s, air flow velocity V ≥ 8 m / s; for example, the operating power of the suction fan can be adjusted between 100 W and 210 W, and the first parameter range corresponding to the operating power of the suction fan is P ≥ preset air pressure, and the preset air pressure is a parameter in the range of 0.6 standard atmospheric pressure to 0.7 standard atmospheric pressure, or the second parameter range corresponding to the operating power of the suction fan is air flow velocity V ≥ preset air flow velocity, and the preset air flow velocity is a parameter in the range of 7 m / s to 8 m / s), and then compare the first airflow parameter detected by the detection unit with the first parameter range to determine whether the filter state is abnormal, so as to ensure the accuracy of the filter state detection.

[0093] See Figure 4 , Figure 4 2 is a flow chart of a fourth embodiment of a filter status detection method according to the present invention.

[0094] This embodiment is based on the solution of the first, second or third embodiment. In this embodiment, determining the first parameter range in step S20 includes:

[0095] Step S21, obtaining operating parameters of the suction fan and determining a preset first parameter range corresponding to the operating parameters;

[0096] By acquiring the operating parameters of the suction fan, a first preset parameter range corresponding to the current operating parameters among the multiple first parameter ranges preset by the electronic device is determined.

[0097] Step S22, determining a compensation amount for the first parameter range according to a deviation value of the second airflow parameter from the second parameter range;

[0098] Step S23: correcting the first parameter range according to the first parameter range compensation amount.

[0099] Since the degree of filter aging affects the air permeability of the filter, when the filter is slightly aged but can still be used, the second airflow parameter detected by the detection unit is the airflow parameter affected by both the slight aging of the filter and the humidity. In this case, if the second airflow parameter is directly compared with the first parameter range obtained in step S21, the filter abnormality determination result may be inaccurate and prone to misjudgment. To eliminate the portion of the first airflow parameter affected by the slight aging of the filter, in this embodiment, a deviation is calculated based on the second airflow parameter currently detected by the detection unit and the determined second parameter range. For example, if the detection unit is located in the vicinity of the air outlet side of the filter, the second airflow parameter is 0.82 standard atmospheres, and the second parameter range is air pressure P ≥ 0.8 standard atmospheres, then the deviation is (0.82-0.8) = 0.2 standard atmospheres. Based on the obtained offset value, a first parameter range compensation amount is determined, and the first parameter range obtained in step S21 is corrected according to the determined first parameter range compensation amount, that is, the first parameter range is compensated for the portion of the airflow parameter value affected by the slight aging of the filter. Among them, the method of determining the first parameter range compensation amount according to the offset value may be: a mapping relationship or conversion method between the offset value and the first parameter range compensation amount may be pre-set in the electronic device (for example, the first parameter range compensation amount = preset coefficient × offset value), and there may be multiple mapping relationships or conversion methods pre-set in the electronic device, which correspond to the operating parameters of the suction fan respectively. According to the obtained offset value, the first parameter range compensation amount can be directly determined through the corresponding mapping relationship or the calculation conversion method; or, the offset value is directly used as the first parameter range compensation amount.

[0100] For example, if the airflow parameter is air pressure, according to step S21, the first parameter range is air pressure P ≥ 0.6 standard atmospheric pressure, and the determined first parameter range compensation amount is 0.05 standard atmospheric pressure, then the corrected first parameter range is air pressure P ≥ (0.6-0.05) standard atmospheric pressure; if the airflow parameter is airflow velocity, according to step S51, the first parameter range is airflow velocity V ≥ 7m / s, and the determined first parameter range compensation amount is 0.5m / s, then the corrected first parameter range is airflow velocity V ≥ (7+0.5)m / s.

[0101] The technical solution of this embodiment, after obtaining the first parameter range, further determines the deviation value of the second airflow parameter from the second parameter range, determines the first parameter range compensation amount according to the offset value, and corrects the obtained first parameter range according to the first parameter range compensation amount, thereby compensating for the numerical portion of the airflow parameter affected by filter aging in the first parameter range, thereby offsetting the numerical portion of the airflow parameter affected by filter aging in the first airflow parameter, and making the detection of abnormal filter status more accurate.

[0102] In some embodiments, the detection unit includes an air pressure detection device, the first air flow parameter is air pressure, and the first parameter range is less than or equal to the first air pressure threshold; for example, the detection unit is arranged in an area near the air outlet side of the filter, and the first parameter range is: P≥0.7 standard atmospheric pressure, P≥0.65 standard atmospheric pressure, P≥0.6 standard atmospheric pressure, etc.

[0103] In some embodiments, the detection unit includes an airflow velocity detection device, the first airflow parameter is the airflow velocity, and the first parameter range is greater than or equal to the first velocity threshold; for example, the first parameter range is: V≥7m / s, V≥7.5m / s, V≥8m / s, etc.

[0104] In some embodiments, the detection unit includes an air pressure detection device, the second air flow parameter is air pressure, and the second parameter range is less than or equal to the second air pressure threshold; for example, the detection unit is arranged in an area near the air outlet side of the filter, and the second parameter range is: P≥0.9 standard atmospheric pressure, P≥0.85 standard atmospheric pressure, P≥0.8 standard atmospheric pressure, etc.

[0105] In some embodiments, the detection unit includes an airflow velocity detection device, and the second airflow parameter is the airflow velocity; the second parameter range is greater than or equal to the second velocity threshold; for example, the second parameter range is: V≥9.5m / s, V≥10m / s, V≥10.5m / s, etc.

[0106] The specific parameters of the first parameter range, the first parameter range compensation amount, the second parameter range, and the second parameter range compensation amount in the above embodiment are merely exemplary and are not restrictive to the present invention. The first parameter range, the first parameter range compensation amount, the second parameter range, and the second parameter range compensation amount can be determined according to actual conditions.

[0107] Optionally, the above-mentioned air pressure detection device can be a barometer, which directly detects the air pressure through the barometer, or it can be a force sensing detector, for example, the air pressure is calculated by the surface stress of the stress plate, etc.; the above-mentioned air flow velocity detection device can be a speedometer, which directly detects the air flow velocity, or it can be an impeller driven by air flow, which calculates the air flow velocity by reading the impeller rotation speed according to the encoder, etc.

[0108] Of course, in some other embodiments, the detection unit may include other parameter detection units to detect other airflow parameters related to the air permeability of the filter.

[0109] It should be noted that, in the case where there are no contradictions or conflicts among the above-mentioned embodiments of the filter status detection method of the present application, the above-mentioned embodiments can be arbitrarily combined or combined to form new embodiments.

[0110] The present invention also provides an electronic device, referring to Figure 5 , Figure 5 It is a schematic diagram of the structure of an electronic device in a hardware operating environment involved in an embodiment of the present invention.

[0111] The electronic device of the embodiment of the present invention can be a computing device such as a desktop computer, a notebook, a palmtop computer, and a server. Figure 5 As shown, the electronic device may include: a processor 1001 (such as a CPU), a network interface 1004, a user interface 1003, a memory 1005 and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit, such as a keyboard (Keyboard), and the user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.

[0112] Those skilled in the art will understand that Figure 5 The electronic device structure shown in the figure does not constitute a limitation to the electronic device, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0113] like Figure 5 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a computer program (eg, a filter status detection program).

[0114] exist Figure 5In the electronic device shown, the network interface 1004 is mainly used to connect to the backend server and communicate data with the backend server; the user interface 1003 is mainly used to connect to the client (user end) and communicate data with the client; and the processor 1001 can be used to call the computer program stored in the memory 1005. When the computer program is called and executed by the processor 1001, the steps of the above-mentioned filter status detection method are implemented.

[0115] Based on the computer program proposed in the aforementioned embodiment, the present invention further proposes a storage medium, which stores the computer program. When the computer program is executed by a controller, the filter status detection method described in the aforementioned embodiment is implemented.

[0116] See Figure 6 The present invention also proposes a cleaning device, including a suction fan 10, a channel 20, a garbage collection container 30, a filter 40, a detection unit 50, and the electronic device 60 described in the above embodiment, the suction fan 10 is connected to the garbage collection container 30 through the channel 20, and the filter 40 is arranged in the channel 20; the detection unit 50 is used to detect the airflow parameters at the location of the detection unit 50, and the electronic device is communicatively connected with the suction fan 10 and the detection unit 50.

[0117] In some embodiments, the detection unit 50 is located between the filter 40 and the suction fan 10, and is positioned adjacent to the filter 40. Specifically, the detection unit 50 is positioned on the air outlet side of the filter 40, allowing the detection results to more accurately reflect the air permeability of the filter 40. Of course, in other embodiments, the detection unit 50 may also be positioned between the filter 40 and the garbage container 30, or in other locations capable of detecting airflow parameters in the area where the filter 40 is located.

[0118] Since the electronic device, cleaning device and storage medium of the present invention can implement the steps of the above-mentioned filter status detection method, they at least have all the beneficial effects brought by the technical solutions of the above-mentioned filter status detection method embodiments, and will not be described in detail here.

[0119] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the modules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection of devices or modules through some interfaces, which can be electrical, mechanical or other forms.

[0120] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules may be selected to achieve the purpose of the present embodiment according to actual needs.

[0121] In addition, the functional modules in various embodiments of the present invention may be integrated into a single processing module, or each module may exist physically separately, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or software functional modules.

[0122] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0123] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields, is included in the scope of protection of the present invention.

Claims

1. A filter status detection method, applied to a cleaning device, wherein the cleaning device comprises a suction fan, a garbage collection container, and a filter, wherein the suction fan is connected to the garbage collection container, and the filter is arranged in a channel connecting the suction fan and the garbage collection container, characterized in that: The cleaning device further comprises a detection unit, wherein the detection unit is used to detect airflow parameters at the location where the detection unit is located; The filter status detection method comprises: Acquiring a first airflow parameter detected by the detection unit; determining a first parameter range, and determining whether the first airflow parameter is within the first parameter range; If not, it is determined that the filter state is abnormal, and a first abnormal state process is performed; Before acquiring the first airflow parameter detected by the detection unit, the filter status monitoring method further includes: When the suction fan is started, obtaining a second airflow parameter currently detected by the detection unit; determining a second parameter range, and determining whether the second airflow parameter is within the second parameter range; If yes, executing the step of obtaining the first airflow parameter detected by the detection unit; If not, it is determined that the filter state is abnormal, and a second abnormal state process is performed; Wherein, determining the first parameter range includes: Acquiring operating parameters of the suction fan and determining a preset first parameter range corresponding to the operating parameters; determining a first parameter range compensation amount according to a deviation value of the second airflow parameter from the second parameter range; The first parameter range is corrected according to the first parameter range compensation amount.

2. The filter status detection method according to claim 1, characterized in that: Determining the second parameter range includes: Obtain a preset second parameter range; or, An operating parameter of the suction fan is obtained, and a preset second parameter range corresponding to the operating parameter is determined.

3. The filter status detection method according to claim 2, characterized in that: The cleaning device further includes a capacitance detection device and a capacitor provided on the filter, wherein the capacitance detection device is used to detect a capacitance reading of the capacitor; and determining the second parameter range further includes: obtaining a capacitance reading of the capacitance detection device, and determining the moisture content of the filter based on the capacitance reading; determining a second parameter range compensation amount according to a difference between the humidity and a preset humidity threshold; The second parameter range is corrected according to the second parameter range compensation amount.

4. The filter status detection method according to claim 1, characterized in that: The performing of the second abnormal state processing includes: Controlling the suction fan to stop working; and / or, Provide preset exception prompts.

5. The filter status detection method according to any one of claims 1 to 4, characterized in that: The detection unit includes an air pressure detection device, the second air flow parameter is air pressure, and the second parameter range is greater than or equal to a second air pressure threshold; Alternatively, the detection unit includes an airflow velocity detection device, the second airflow parameter is the airflow velocity; and the second parameter range is greater than or equal to a second velocity threshold.

6. The filter status detection method according to claim 1, characterized in that: Determining the first parameter range includes: Obtaining a preset first parameter range; or, An operating parameter of the suction fan is obtained, and a preset first parameter range corresponding to the operating parameter is determined.

7. The filter status detection method according to claim 1, characterized in that: The detection unit includes an air pressure detection device, the first airflow parameter is air pressure, and the first parameter range is greater than or equal to a first air pressure threshold; Alternatively, the detection unit includes an airflow velocity detection device, the first airflow parameter is the airflow velocity, and the first parameter range is greater than or equal to a first velocity threshold.

8. The filter status detection method according to claim 1, characterized in that: The performing of the first abnormal state processing includes: Controlling the suction fan to stop working; and / or, The filter is subjected to a dehumidification treatment.

9. The filter status detection method according to claim 1, characterized in that: The step of obtaining the first airflow parameter detected by the detection unit is performed in real time or periodically.

10. An electronic device, characterized in that: The electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the filter status detection method according to any one of claims 1 to 9 are implemented.

11. A cleaning device, characterized in that: It includes a suction fan, a garbage collection container, a filter, a detection unit, and the electronic device according to claim 10, wherein the suction fan is connected to the garbage collection container, and the filter is arranged in a channel connecting the suction fan and the garbage collection container; the detection unit is used to detect the airflow parameters at its location, and the electronic device is communicatively connected to the suction fan and the detection unit.

12. The cleaning device according to claim 11, characterized in that The detection unit is located between the filter and the suction fan, and the detection unit is arranged adjacent to the filter.

13. A storage medium, characterized in that: The storage medium stores a computer program, which, when executed by a processor, implements the steps of the filter status detection method according to any one of claims 1 to 9.

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