Testing methods and apparatus for air conditioner filter cleaning devices; air conditioner filter cleaning devices

Abstract

This application provides a detection method and apparatus for an air conditioner filter cleaning device, and an air conditioner filter cleaning device. By detecting that the air conditioner filter cleaning function is activated, the operating current of two stepper motors is determined, and the movement of the stepper motors is controlled according to the operating current. The operating current is used to control the operating torque of the stepper motors. After the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This solves the technical problem in the prior art that there is no reliable monitoring method to monitor abnormalities in air conditioner filter cleaning devices.

Description

Technical Field

[0001] This application relates to the field of air conditioning control, and more specifically, to a detection method and apparatus for an air conditioning filter cleaning device, and an air conditioning filter cleaning device. Background Technology

[0002] In the current technology, the filter cleaning function of split-type air conditioners has been promoted in many models. However, during use, users may encounter problems such as improper installation or aging of the transmission mechanism, which may cause inconsistent movement of the filter movement mechanism, affecting the normal use of the filter cleaning function, the lifespan of the movement structure, and the user experience.

[0003] Existing filter cleaning mechanisms often use stepper motors to move the filter, fixed brushes to clean the dust on the filter, and contact switches to determine the movement position of the filter, thereby monitoring the entire filter cleaning process. However, stepper motors themselves do not provide feedback, and mechanical spring switches may become damaged after prolonged use, resulting in unreliable monitoring of the filter cleaning process.

[0004] The aforementioned problems in the related technologies have not yet been effectively resolved. Summary of the Invention

[0005] The main objective of this application is to provide a detection method and apparatus for an air conditioning filter cleaning device, and an air conditioning filter cleaning device, to solve the technical problem that there is no reliable monitoring means in the prior art to monitor abnormalities in air conditioning filter cleaning devices.

[0006] According to one aspect of the present invention, a detection method for an air conditioner filter cleaning device is provided. The cleaning component of the air conditioner filter device includes two filters, two sets of transmission mechanisms, two stepper motors, and a brush. The two stepper motors are respectively connected to their respective filters through a corresponding set of transmission mechanisms. The method includes: when the air conditioner is detected to be activating the filter cleaning function, determining the operating current of the two stepper motors and controlling the movement of the stepper motors according to the operating current; after the stepper motors have been running for a first preset time period, acquiring the operating information of at least one stepper motor and determining whether the cleaning component has malfunctioned based on the operating information.

[0007] Furthermore, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, acquiring two operating currents and two operating angles corresponding to the two stepper motors; determining whether the two operating currents are the same; determining whether the two operating angles are the same; and determining that the two filters of the air conditioning filter cleaning device are asymmetrical about a predetermined axis of symmetry, and / or that the transmission mechanism of at least one side is abnormal, wherein the predetermined axis of symmetry is a straight line perpendicular to the brush at the midpoint of the brush.

[0008] Furthermore, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, controlling the operating current of the stepper motors to decrease from the operating current to a first preset current; based on the first preset current, controlling the two stepper motors to run for a second preset time period, and acquiring the operating status of at least one stepper motor; based on the operating status of at least one stepper motor, determining whether at least one filter is abnormal, wherein each stepper motor corresponds to a filter.

[0009] Furthermore, based on the operating status of at least one stepper motor, it is determined whether at least one filter screen has malfunctioned, including: if the operating status of at least one stepper motor is not running, it is determined that the installation position of the filter screen corresponding to the stepper motor is not abnormal; if the operating status of at least one stepper motor is a preset running state, it is determined that the filter screen corresponding to the stepper motor has a tripping abnormality.

[0010] Furthermore, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, controlling the operating current of the stepper motors to decrease from the operating current to a second preset current; based on the second preset current, controlling the two stepper motors to run for a third preset time period, acquiring multiple operating angles of at least one stepper motor within the third preset time period; and based on the multiple operating angles, determining whether the transmission mechanism corresponding to at least one stepper motor is abnormal, and / or whether the stepper motor is operating abnormally.

[0011] Furthermore, based on multiple operating angles, it is determined whether the transmission mechanism corresponding to at least one stepper motor is malfunctioning, and / or whether the stepper motor is malfunctioning, including: determining whether multiple operating angles are all less than a first preset angle; if multiple operating angles are all less than the first preset angle, it is determined that the transmission mechanism is jammed, and / or that the stepper motor is malfunctioning.

[0012] Furthermore, after the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the stepper motor has been running for a first preset time period, controlling the transmission mechanism corresponding to at least one stepper motor to run to a second preset angle; acquiring the current operating current of at least one stepper motor; determining whether the current operating current is greater than a third preset current; and determining that the filter corresponding to the stepper motor is aging if the current operating current is greater than the third preset current.

[0013] According to another aspect of the present invention, a detection device for an air conditioner filter cleaning device is also provided. The cleaning component of the air conditioner filter device includes two filters, two sets of transmission mechanisms, two stepper motors, and a brush. The two stepper motors are respectively connected to the corresponding filters through a corresponding set of transmission mechanisms. The device includes: a first determining method, used to determine the operating current of the two stepper motors when the air conditioner is detected to be activating the filter cleaning function, and to control the movement of the stepper motors according to the operating current, wherein the operating current is used to control the operating torque of the stepper motors; and a second determining unit, used to acquire the operating information of at least one stepper motor after the stepper motors have been running for a first preset time period, and to determine whether the cleaning component has malfunctioned according to the operating information.

[0014] According to another aspect of the present invention, an air conditioning filter cleaning device is also provided, including two filters, two sets of transmission mechanisms, two stepper motors, a brush, and a detection device for the air conditioning filter cleaning device. The two stepper motors are respectively connected to the two filters through the two sets of transmission mechanisms. The two filters are symmetrically arranged with respect to the central axis of the brush. The detection device for the air conditioning filter cleaning device is used to perform a detection method for an air conditioning filter cleaning device according to any one of claims 1 to 7.

[0015] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein the program executes a detection method for an air conditioning filter cleaning device.

[0016] According to another aspect of the present invention, a processor is also provided, which is used to run a program, wherein the program executes a detection method for an air conditioning filter cleaning device.

[0017] According to another aspect of the present invention, an electronic device is also provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include a detection method for performing an air conditioning filter cleaning device.

[0018] In this embodiment of the invention, when the air conditioner is detected to be activating the filter cleaning function, the operating current of two stepper motors is determined, and the stepper motors are controlled to move based on the operating current, wherein the operating current is used to control the operating torque of the stepper motors; after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This solves the technical problem in the prior art that there is no reliable monitoring means to monitor abnormalities in the air conditioner filter cleaning device. By reliably monitoring the cleaning component in the air conditioner filter cleaning device, the technical effect of improving the intelligence of the air conditioner is achieved. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 This is a flowchart of a testing method for an air conditioner filter cleaning device according to an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of an air conditioner filter cleaning device provided in this application;

[0022] Figure 3 This is a schematic diagram of a testing device for an air conditioning filter cleaning device provided according to an embodiment of this application. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be an intermediate element present. Furthermore, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element via a third element.

[0027] As mentioned in the background section, there is a technical problem that there is no reliable monitoring method in the prior art to monitor abnormalities in air conditioning filter cleaning devices. In order to solve the above problem, in a typical embodiment of this application, a detection method and device for air conditioning filter cleaning devices and an air conditioning filter cleaning device are provided.

[0028] According to an embodiment of this application, a method for detecting an air conditioning filter cleaning device is provided.

[0029] Figure 1 This is a flowchart illustrating a testing method for an air conditioning filter cleaning device according to an embodiment of this application. Figure 1 As shown, the method includes the following steps:

[0030] Step S101: When the air conditioner is detected to be using the filter cleaning function, the operating current of the two stepper motors is determined, and the stepper motors are controlled to move according to the operating current. The operating current is used to control the operating torque of the stepper motors.

[0031] As mentioned above, in this application, the operating current used to control the motor is only used to control the motor's operating torque, and the stepper motor drive frequency is used to control the motor's operating speed. Under normal circumstances, a conventional stepper motor drive only outputs a drive signal to drive the stepper motor to run, that is, the current is constant, the corresponding motor torque is constant, there is no feedback, and it is an open-loop control.

[0032] Step S102: After the stepper motor has been running for a first preset time period, obtain the running information of at least one stepper motor, and determine whether the cleaning component has malfunctioned based on the running information.

[0033] As described above, this application provides an air conditioning filter cleaning device, such as... Figure 2 As shown, the air conditioner filter cleaning device includes a cleaning assembly, which comprises two filters, two sets of transmission mechanisms, two stepper motors, and a brush. Each stepper motor is connected to its corresponding filter via a corresponding set of transmission mechanisms. Figure 2 As shown, two filters are symmetrically arranged on the left and right sides of the brush. Stepper motors on both sides drive the transmission mechanisms on both sides, thereby moving the filters. In this application, the stepper motor is controlled by a motor driver chip. Existing air conditioner stepper motors use open-loop control. The advantage of this method is its simple control circuit, but it cannot control the output current or the motor's torque. Using a stepper motor driver chip, such as the A4954, the operating current of the stepper motor can be controlled, thereby controlling the stepper motor's torque.

[0034] As mentioned above, in this application, an electromagnetic encoder and an axial magnet are added to the stepper motor. By installing the axial magnet on the stepper motor shaft, the stepper motor running angle is detected by the magnetic encoder, thereby detecting the current stepper motor running information. Preferably, the magnetic encoder can be IC AS5047D.

[0035] Specifically, in this application, upon detecting that the air conditioner's filter cleaning function is activated, an operating current is set for the stepper motor. After the stepper motor has been running for a period of time, its operating information is acquired. This operating information includes at least one of the following: the current operating current of the stepper motor, the operating angle of the stepper motor, and the operating angular velocity of the stepper motor. Based on this operating information, it is determined which cleaning components in the air conditioner filter cleaning device are malfunctioning and the type of malfunction. This application adds current control and current detection, as well as motor operating angle detection, to conventional control, enabling the identification and monitoring of abnormal motor operation and making corresponding adjustments. This prevents the filter from spinning idly or being dragged, ensuring the reliable and controllable operation of the cleaning mechanism.

[0036] The detection method for an air conditioner filter cleaning device provided in this application isomorphically obtains the operating information of a stepper motor, determines whether the cleaning component is malfunctioning, and provides early prevention and reminders for malfunctions of the cleaning component, thereby extending the service life of the cleaning component and improving the user experience.

[0037] In one optional embodiment, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, acquiring two operating currents and two operating angles corresponding to the two stepper motors; determining whether the two operating currents are the same; determining whether the two operating angles are the same; and determining that the two filters of the air conditioning filter cleaning device are asymmetrical about a predetermined axis of symmetry, and / or that the transmission mechanism of at least one side is abnormal, wherein the predetermined axis of symmetry is a straight line perpendicular to the brush at the midpoint of the brush.

[0038] As described above, the operating status of the filter cleaning machine component is determined by recording the stepper motor's operating torque (operating current), operating time, and operating angle. The factory-set stepper motor operating current is Iset (higher than the motor's normal standby operating current, typically 80mA for single phase). When the user sets the filter cleaning function (either for the first time or after reinstalling the filter), the air conditioner's internal timing unit records the stepper motor's operating time. If the monitoring finds that two motors, under the same torque (same operating current) and within the same time, have different operating angles, it is determined that there is an inconsistency in the installation of the left and right filters in the air conditioner filter cleaning device, and / or an abnormality in the transmission mechanism on one side. It should be noted that the inconsistency in the installation of the filter devices on both sides usually refers to the asymmetrical installation positions of the filters on both sides. Generally, the left and right filters are installed symmetrically with respect to the brush. If the above abnormality is determined, the air conditioner can issue a reminder to the user, for example, by sending a notification message to the user terminal or by directly emitting a sound to attract the user's attention.

[0039] Furthermore, when the air conditioner is running the filter cleaning function, it will detect the running angle, running current (torque), and running angular velocity (running angle / running time) of the stepper motors on both sides in real time. Taking the stepper motor model MP24BA as an example, the step angle is 5.625° / 64; the structural reduction ratio is 1:1, the speed of the stepper motor is set to 24ms / step, and the movement of the stepper motors on both sides is controlled to ensure that the running angle of the stepper motors on both sides is consistent within the same running time. Specifically, the entire operation process is divided into three stages. In each stage, the stepper motors on the left and right sides are independently monitored in real time. If it is found that the running angle of the left stepper motor is greater than that of the right stepper motor in the first operating stage, the running speed of the right motor can be adjusted by the main control of the air conditioner indoor unit. The running speed of the stepper motor is determined by the driving frequency of the stepper motor. For example, if the running speed of the right stepper motor is adjusted to 8ms / step, the running angle of the right motor will catch up with that of the left motor in the next operating cycle, so as to achieve the effect of consistent running of the two stepper motors, thereby reducing the damage rate of the cleaning components.

[0040] In one optional embodiment, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, controlling the operating current of the stepper motors to decrease from the operating current to a first preset current; based on the first preset current, controlling the two stepper motors to run for a second preset time period, and then acquiring the operating status of at least one stepper motor; based on the operating status of at least one stepper motor, determining whether at least one filter is abnormal, wherein each stepper motor corresponds to a filter. Determining whether at least one filter is abnormal based on the operating status of at least one stepper motor includes: if the operating status of at least one stepper motor is a non-operating state, then it is determined that the installation position of the filter corresponding to the stepper motor is not abnormal; if the operating status of at least one stepper motor is a preset operating state, then it is determined that the filter corresponding to the stepper motor has a disengagement abnormality.

[0041] As described above, when the air conditioner is operating the filter cleaning function, after running for a period of time, the stepper motor's operating current is reduced to Iset1 (below the motor's load operating current; typically, the single-phase current of Iset1 is 30mA). After reducing the operating current, if the motor is not detected to be running, it indicates that the filter installation position is normal. If the motor is detected to be running normally, it indicates that the filter installation has a tripping phenomenon, which means that the gear on the filter is not engaged with the corresponding gear on the transmission gear. Therefore, by monitoring the operating torque of the stepper motor, the tripping detection of the filter cleaning mechanism is achieved through the above method.

[0042] In one optional embodiment, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be malfunctioning based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, controlling the operating current of the stepper motors to decrease from the operating current to a second preset current; based on the second preset current, controlling the two stepper motors to run for a third preset time period, acquiring multiple operating angles of at least one stepper motor within the third preset time period; and based on the multiple operating angles, determining whether the transmission mechanism corresponding to at least one stepper motor is malfunctioning, and / or whether the stepper motor is malfunctioning. Determining whether the transmission mechanism corresponding to at least one stepper motor is malfunctioning, and / or whether the stepper motor is malfunctioning, based on the multiple operating angles includes: determining whether all multiple operating angles are less than a first preset angle; if all multiple operating angles are less than the first preset angle, determining that the transmission mechanism is jammed, and / or that the stepper motor is malfunctioning.

[0043] As mentioned above, when the air conditioner is running the filter cleaning function, the motor operating current is reduced to I set 2 (normal motor load current, usually 60mA for single phase). The motor operating angle is detected. If the motor operating angle is lower than the set angle within a specified time, it is determined that there is an abnormal situation of transmission mechanism jamming, and / or, a problem of abnormal stepper motor operation.

[0044] Among them, transmission mechanism jamming includes jamming of a set of transmission mechanisms on any one side, including abnormal problems such as jamming of transmission gears or transmission racks.

[0045] In one optional embodiment, after the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the stepper motor has been running for a first preset time period, controlling the transmission mechanism corresponding to at least one stepper motor to run to a second preset angle; acquiring the current operating current of at least one stepper motor; determining whether the current operating current is greater than a third preset current; and if the current operating current is greater than the third preset current, determining that the filter corresponding to the stepper motor is aging.

[0046] As mentioned above, the filter in the air conditioner filter cleaning device is usually made of rubber. If the air conditioner has been used for a long time, the filter may have aging problems. When the air conditioner turns on the automatic cleaning function, if it is detected that the torque required for the stepper motor to run to the specified angle is greater than usual (i.e., the operating current of the stepper motor is greater), it is determined that the filter cleaning mechanism needs to replace parts, that is, the filter has aging and needs to be replaced in time.

[0047] Furthermore, in an optional embodiment, a code is displayed to remind the consumer to replace the filter during power-off / standby mode. During this period, the filter cleaning device can continue to operate normally by increasing the drive current (motor torque) to reach a specified angle within a specified time.

[0048] This application provides a detection method for an air conditioner filter cleaning device. By monitoring information such as the stepper motor's operating angle, operating torque, operating time, and operating angular velocity, the method determines and infers the installation and usage status of the air conditioner's filter cleaning components, thus solving the problem of controlling the automatic filter cleaning process and improving product reliability.

[0049] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0050] This application also provides a detection device for an air conditioner filter cleaning device. It should be noted that this detection device can be used to execute the detection method for an air conditioner filter cleaning device provided in this application. The following describes the detection device for an air conditioner filter cleaning device provided in this application.

[0051] Figure 3 This is a schematic diagram of a detection device for an air conditioner filter cleaning device according to an embodiment of this application. Figure 3 As shown, the device includes: a first determining unit 301, used to determine the operating current of two stepper motors when the air conditioner is detected to be activating the filter cleaning function, and to control the movement of the stepper motors according to the operating current, wherein the operating current is used to control the operating torque of the stepper motors; and a second determining unit 302, used to acquire the operating information of at least one stepper motor after the stepper motors have been running for a first preset time period, and to determine whether the cleaning component has malfunctioned according to the operating information.

[0052] In one optional embodiment, the first acquisition unit includes: a first acquisition subunit, configured to acquire two operating currents and two operating angles corresponding to the two stepper motors after the two stepper motors have been running for a first preset time period; a first determination subunit, configured to determine whether the two operating currents are the same; a second determination subunit, configured to determine whether the two operating angles are the same; and a first determination subunit, configured to determine that, in the case that the two filters of the air conditioning filter cleaning device are asymmetrical about a predetermined axis of symmetry and / or that at least one side of the transmission mechanism is abnormal, wherein the predetermined axis of symmetry is a straight line perpendicular to the brush at the midpoint of the brush.

[0053] In one optional embodiment, the second determining unit 302 includes: a first control subunit, configured to control the operating current of the two stepper motors to decrease from the operating current to a first preset current after the two stepper motors have been running for a first preset time period; a second control subunit, configured to control the two stepper motors to run for a second preset time period based on the first preset current, and then obtain the operating status of at least one stepper motor; and a second determining subunit, configured to determine whether at least one filter screen has malfunctioned based on the operating status of at least one stepper motor, wherein the stepper motors and filters are in one-to-one correspondence.

[0054] In one optional embodiment, the second determining subunit includes: a first determining module, configured to determine that the installation position of the filter corresponding to the stepper motor is not abnormal when at least one stepper motor is in a non-operating state; and a second determining module, configured to determine that the filter corresponding to the stepper motor has a tripping abnormality when at least one stepper motor is in a preset operating state.

[0055] In one optional embodiment, the second determining unit 302 includes: a third control subunit, configured to control the operating current of the stepper motor to decrease from the operating current to a second preset current after the two stepper motors have been running for a first preset time period; a fourth control subunit, configured to control the two stepper motors to run for a third preset time period based on the second preset current, and then obtain multiple operating angles of at least one stepper motor within the third preset time period; and a third determining subunit, configured to determine, based on the multiple operating angles, whether the transmission mechanism corresponding to at least one stepper motor has malfunctioned, and / or whether the stepper motor is malfunctioning.

[0056] In one optional embodiment, the third determining subunit includes: a determining module, used to determine whether multiple operating angles are all less than a first preset angle; and a third determining module, used to determine, when multiple operating angles are all less than the first preset angle, that the transmission mechanism is stuck and / or the stepper motor is malfunctioning.

[0057] In one optional embodiment, the second determining unit 302 includes: a fifth control subunit, configured to control the transmission mechanism corresponding to at least one stepper motor to run to a second preset angle after the stepper motor has been running for a first preset time period; a second acquisition subunit, configured to acquire the current operating current of at least one stepper motor; a third determination subunit, configured to determine whether the current operating current is greater than a third preset current; and a fourth determining subunit, configured to determine that the filter corresponding to the stepper motor is aging if the current operating current is greater than the third preset current.

[0058] A detection device for an air conditioner filter cleaning device includes a processor and a memory. The aforementioned first determining unit 301 and the like are all stored in the memory as program units, and the processor executes the aforementioned program units stored in the memory to realize the corresponding functions.

[0059] The processor contains a kernel, which retrieves the corresponding program units from memory. One or more kernels can be identified, and adjusting kernel parameters can address the technical problem of the lack of reliable monitoring methods for anomalies in air conditioning filter cleaning devices in existing technologies.

[0060] The memory may include non-permanent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0061] This invention provides a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements a detection method for an air conditioner filter cleaning device.

[0062] This invention provides a processor for running a program, wherein the program executes a detection method for an air conditioner filter cleaning device.

[0063] This invention provides a device including a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, it performs at least the following steps: when the air conditioner is detected to be activating the filter cleaning function, it determines the operating current of two stepper motors and controls the movement of the stepper motors based on the operating current, wherein the operating current is used to control the operating torque of the stepper motors; after the stepper motors have been running for a first preset time period, it acquires the operating information of at least one stepper motor and determines whether the cleaning component has malfunctioned based on the operating information.

[0064] In one optional embodiment, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, acquiring two operating currents and two operating angles corresponding to the two stepper motors; determining whether the two operating currents are the same; determining whether the two operating angles are the same; and determining that the two filters of the air conditioning filter cleaning device are asymmetrical about a predetermined axis of symmetry, and / or that the transmission mechanism of at least one side is abnormal, wherein the predetermined axis of symmetry is a straight line perpendicular to the brush at the midpoint of the brush.

[0065] In one optional embodiment, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, controlling the operating current of the stepper motors to decrease from the operating current to a first preset current; based on the first preset current, controlling the two stepper motors to run for a second preset time period, and acquiring the operating status of at least one stepper motor; based on the operating status of at least one stepper motor, determining whether at least one filter is abnormal, wherein the stepper motors and filters are in one-to-one correspondence.

[0066] In one optional embodiment, determining whether at least one filter screen is abnormal based on the operating state of at least one stepper motor includes: if the operating state of at least one stepper motor is not running, then determining that the installation position of the filter screen corresponding to the stepper motor is not abnormal; if the operating state of at least one stepper motor is a preset operating state, then determining that the filter screen corresponding to the stepper motor has a tripping abnormality.

[0067] In one optional embodiment, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, controlling the operating current of the stepper motors to decrease from the operating current to a second preset current; based on the second preset current, controlling the two stepper motors to run for a third preset time period, acquiring multiple operating angles of at least one stepper motor within the third preset time period; and based on the multiple operating angles, determining whether the transmission mechanism corresponding to at least one stepper motor is abnormal, and / or whether the stepper motor is operating abnormally.

[0068] In one optional embodiment, determining whether the transmission mechanism corresponding to at least one stepper motor is malfunctioning, and / or whether the stepper motor is malfunctioning, based on multiple operating angles, includes: determining whether multiple operating angles are all less than a first preset angle; if multiple operating angles are all less than the first preset angle, then determining that the transmission mechanism is jammed, and / or that the stepper motor is malfunctioning.

[0069] In one optional embodiment, after the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the stepper motor has been running for a first preset time period, controlling the transmission mechanism corresponding to at least one stepper motor to run to a second preset angle; acquiring the current operating current of at least one stepper motor; determining whether the current operating current is greater than a third preset current; and if the current operating current is greater than the third preset current, determining that the filter corresponding to the stepper motor is aging. The device in this document can be a server, PC, PAD, mobile phone, etc.

[0070] This application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having at least the following method steps: after two stepper motors have been running for a first preset time period, acquiring two operating currents and two operating angles corresponding to the two stepper motors; determining whether the two operating currents are the same; determining whether the two operating angles are the same; and determining that, if the two operating currents are the same and the two operating angles are different, that the two filters of the air conditioning filter cleaning device are asymmetrical about a predetermined axis of symmetry, and / or that at least one side of the transmission mechanism is abnormal, wherein the predetermined axis of symmetry is a straight line perpendicular to the brush at the midpoint of the brush.

[0071] In one optional embodiment, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, controlling the operating current of the stepper motors to decrease from the operating current to a first preset current; based on the first preset current, controlling the two stepper motors to run for a second preset time period, and acquiring the operating status of at least one stepper motor; based on the operating status of at least one stepper motor, determining whether at least one filter is abnormal, wherein the stepper motors and filters are in one-to-one correspondence.

[0072] In one optional embodiment, determining whether at least one filter screen is abnormal based on the operating state of at least one stepper motor includes: if the operating state of at least one stepper motor is not running, then determining that the installation position of the filter screen corresponding to the stepper motor is not abnormal; if the operating state of at least one stepper motor is a preset operating state, then determining that the filter screen corresponding to the stepper motor has a tripping abnormality.

[0073] In one optional embodiment, after the stepper motors have been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for a first preset time period, controlling the operating current of the stepper motors to decrease from the operating current to a second preset current; based on the second preset current, controlling the two stepper motors to run for a third preset time period, acquiring multiple operating angles of at least one stepper motor within the third preset time period; and based on the multiple operating angles, determining whether the transmission mechanism corresponding to at least one stepper motor is abnormal, and / or whether the stepper motor is operating abnormally.

[0074] In one optional embodiment, determining whether the transmission mechanism corresponding to at least one stepper motor is malfunctioning, and / or whether the stepper motor is malfunctioning, based on multiple operating angles, includes: determining whether multiple operating angles are all less than a first preset angle; if multiple operating angles are all less than the first preset angle, then determining that the transmission mechanism is jammed, and / or that the stepper motor is malfunctioning.

[0075] In one optional embodiment, after the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the stepper motor has been running for a first preset time period, controlling the transmission mechanism corresponding to at least one stepper motor to run to a second preset angle; acquiring the current operating current of at least one stepper motor; determining whether the current operating current is greater than a third preset current; and if the current operating current is greater than the third preset current, determining that the filter corresponding to the stepper motor is aging.

[0076] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0077] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0078] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0079] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0080] If the integrated unit is implemented as a software functional unit 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, in essence, 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. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0081] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0082] 1) A detection method for an air conditioner filter cleaning device, which judges and infers the installation and use of air conditioner filter cleaning components by monitoring information such as the running angle, running torque, running time, and running angular velocity of the stepper motor, thereby solving the problem of automatic filter cleaning process control and improving product reliability.

[0083] 2) Detect and control the consistency of the running angle of the left and right stepper motors to avoid twisting and deformation during the cleaning process.

[0084] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for testing an air conditioner filter cleaning device, characterized in that, The cleaning components of the air conditioning filter device include two filters, two sets of transmission mechanisms, two stepper motors, and a brush. The two stepper motors are each connected to a corresponding filter via a corresponding set of transmission mechanisms. The method includes: When the air conditioner is detected to be using the filter cleaning function, the operating current of the two stepper motors is determined, and the stepper motors are controlled to move according to the operating current, wherein the operating current is used to control the operating torque of the stepper motors. After the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. After the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information. This includes: after the two stepper motors have been running for the first preset time period, acquiring two operating currents and two operating angles corresponding to the two stepper motors; determining whether the two operating currents are the same; determining whether the two operating angles are the same; and determining that the two filters of the air conditioning filter cleaning device are asymmetrical about a predetermined axis of symmetry, and / or that the transmission mechanism on at least one side is abnormal, wherein the predetermined axis of symmetry is a straight line perpendicular to the brush at the midpoint of the brush.

2. The method according to claim 1, characterized in that, After the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information, including: After the two stepper motors have been running for the first preset time period, the operating current of the stepper motors is controlled to decrease from the operating current to the first preset current. Based on the first preset current, after controlling the two stepper motors to run for a second preset time period, the operating status of at least one stepper motor is obtained; Based on the operating status of at least one of the stepper motors, it is determined whether at least one of the filters has experienced the abnormality, wherein each stepper motor corresponds to one filter.

3. The method according to claim 2, characterized in that, Determining whether at least one of the filters has experienced the abnormality based on the operating status of at least one of the stepper motors includes: If at least one of the stepper motors is in a non-operating state, then it is determined that the installation position of the filter screen corresponding to the stepper motor is not abnormal; If at least one of the stepper motors is in a preset operating state, then it is determined that the filter screen corresponding to the stepper motor has a tripping abnormality.

4. The method according to claim 1, characterized in that, After the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information, including: After the two stepper motors have been running for the first preset time period, the operating current of the stepper motors is controlled to decrease from the operating current to the second preset current. Based on the second preset current, after controlling the two stepper motors to run for a third preset time period, multiple running angles of at least one stepper motor within the third preset time period are obtained; Based on multiple operating angles, determine whether at least one of the transmission mechanisms corresponding to the stepper motor is malfunctioning, and / or whether the stepper motor is malfunctioning.

5. The method according to claim 4, characterized in that, Based on multiple operating angles, determine whether at least one of the stepper motors' corresponding transmission mechanisms is malfunctioning, and / or whether the stepper motor is malfunctioning, including: Determine whether all of the stated operating angles are less than a first preset angle; If multiple operating angles are all less than the first preset angle, it is determined that the transmission mechanism is jammed, and / or the stepper motor is operating abnormally.

6. The method according to claim 1, characterized in that, After the stepper motor has been running for a first preset time period, the operating information of at least one stepper motor is acquired, and the cleaning component is determined to be abnormal based on the operating information, including: After the stepper motor has been running for the first preset time period, at least one of the transmission mechanisms corresponding to the stepper motor is controlled to run to a second preset angle. Obtain the current operating current of at least one of the stepper motors; Determine whether the current operating current is greater than the third preset current; If the current operating current is greater than the third preset current, the filter corresponding to the stepper motor is determined to be aging.

7. A detection device for an air conditioner filter cleaning device, characterized in that, The cleaning components of the air conditioning filter device include two filters, two sets of transmission mechanisms, two stepper motors, and a brush. The two stepper motors are each connected to a corresponding filter via a corresponding set of transmission mechanisms. The device includes: The first determining unit is used to determine the operating current of the two stepper motors when the air conditioner is detected to be activating the filter cleaning function, and to control the movement of the stepper motors based on the operating current. The second determining unit is used to acquire the operating information of at least one stepper motor after the stepper motor has been running for a first preset time period, and to determine whether the cleaning component has malfunctioned based on the operating information. The second determining unit includes: a first acquiring subunit, used to acquire two operating currents and two operating angles corresponding to the two stepper motors after the stepper motors have run for a first preset time period; a first determining subunit, used to determine whether the two operating currents are the same; a second determining subunit, used to determine whether the two operating angles are the same; and a first determining subunit, used to determine that, when the two operating currents are the same and the two operating angles are different, the two filters of the air conditioning filter cleaning device are asymmetrical about a predetermined axis of symmetry, and / or, at least one side of the transmission mechanism is abnormal, wherein the predetermined axis of symmetry is a straight line perpendicular to the brush at the midpoint of the brush.

8. An air conditioner filter cleaning device, characterized in that, The device includes two filters, two sets of transmission mechanisms, two stepper motors, a brush, and a detection device for an air conditioning filter cleaning device. The two stepper motors are respectively connected to the two filters through the two sets of transmission mechanisms. The two filters are symmetrically arranged with respect to the central axis of the brush. The detection device for the air conditioning filter cleaning device is used to perform a detection method for an air conditioning filter cleaning device as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program executes a detection method for an air conditioner filter cleaning device according to any one of claims 1 to 6.

10. A processor, characterized in that, The processor is used to run a program, wherein the program executes a detection method for an air conditioner filter cleaning device according to any one of claims 1 to 6.

11. An electronic device, characterized in that, include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including a detection method for performing an air conditioning filter cleaning device according to any one of claims 1 to 6.

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