CN108889060B - Method and device for detecting filter element - Google Patents
Method and device for detecting filter element Download PDFInfo
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- CN108889060B CN108889060B CN201810522608.9A CN201810522608A CN108889060B CN 108889060 B CN108889060 B CN 108889060B CN 201810522608 A CN201810522608 A CN 201810522608A CN 108889060 B CN108889060 B CN 108889060B
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
Abstract
The present disclosure relates to a method and a device for detecting a filter element, wherein the method is applied to air purification equipment, and comprises the following steps: acquiring the current power of a motor in the air purification equipment when the motor rotates at a specified rotating speed; and determining whether a filter element exists in the air purification equipment or not according to the power threshold value corresponding to the current power and the specified rotating speed, and accurately judging whether the filter element exists or not in the air purification equipment on the premise of not increasing hardware cost by using the power change of the motor when the filter element exists or not at the same rotating speed.
Description
Technical Field
The disclosure relates to the technical field of air purification equipment, in particular to a method and a device for detecting a filter element.
Background
With the concern of people on air quality, air purification equipment such as a fresh air machine is gradually popularized in places such as families and work. The filter element in the air purification device can adsorb and filter impurities in the air, such as PM2.5 and PM 3.0.
In the related art, a sensor such as a Radio Frequency Identification (RFID) device or a magnetic device is additionally mounted on the filter element to determine whether the filter element is present in the air purification apparatus. When sensors such as RFID or magnetic devices have no signals, it is judged that no filter element exists in the air purification equipment. This approach incurs additional hardware cost.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a method and apparatus for inspecting a filter element.
According to a first aspect of embodiments of the present disclosure, there is provided a method of inspecting a filter cartridge, the method being applied to an air purification apparatus, the method comprising: acquiring the current power of a motor in the air purification equipment when the motor rotates at a specified rotating speed; and determining whether a filter element exists in the air purification equipment or not according to the power threshold value corresponding to the current power and the specified rotating speed.
In a possible implementation manner, the determining whether a filter element exists in the air purification device according to the power threshold corresponding to the current power and the specified rotation speed includes: if the current power is larger than the power threshold, determining that no filter element exists in the air purification equipment; and if the current power is smaller than or equal to the power threshold, determining that a filter element exists in the air purification equipment.
In one possible implementation, the method further includes: detecting the power of the motor rotating at the specified rotating speed under the conditions that the air purification equipment is provided with and without a filter element respectively to obtain a first power and a second power; determining the power threshold from the first power and the second power, the power threshold being greater than the first power and less than the second power.
In one possible implementation, after determining that a filter element is present in the air purification apparatus, the method further includes: and adjusting the rotating speed of the motor to the rotating speed in normal operation.
In one possible implementation, the method further includes: and if the current power is larger than the power threshold, stopping supplying power to the motor.
In one possible implementation, the specified rotation speed is greater than the rotation speed at which the motor normally operates.
In one possible implementation, the protection power of the motor is the power threshold.
According to a second aspect of the embodiments of the present disclosure, there is provided an apparatus for detecting a filter cartridge, the apparatus being applied to an air purifying device, the apparatus including: the acquisition module is used for acquiring the current power of a motor in the air purification equipment when the motor rotates at a specified rotating speed; and the first determining module is used for determining whether a filter element exists in the air purifying equipment or not according to the current power and a power threshold corresponding to the specified rotating speed.
In one possible implementation manner, the first determining module includes: a first determining submodule for determining that no filter element is present in the air purification apparatus when the current power is greater than the power threshold; and the second determining submodule is used for determining that a filter element exists in the air purifying equipment when the current power is less than or equal to the power threshold.
In one possible implementation, the apparatus further includes: the detection module is used for detecting the power of the motor rotating at the specified rotating speed to obtain a first power and a second power under the condition that the air purification equipment has a filter element and does not have the filter element; a second determining module, configured to determine the power threshold according to the first power and the second power, where the power threshold is greater than the first power and less than the second power.
In one possible implementation, the apparatus further includes: and the adjusting module is used for adjusting the rotating speed of the motor to the rotating speed in normal working.
In one possible implementation, the apparatus further includes: and the stopping module is used for stopping supplying power to the motor when the current power is greater than the power threshold value.
In one possible implementation, the specified rotation speed is greater than the rotation speed at which the motor normally operates.
In one possible implementation, the protection power of the motor is the power threshold.
According to a third aspect of embodiments of the present disclosure, there is provided an apparatus for testing a filter cartridge, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having instructions which, when executed by a processor, enable the processor to perform the above-described method.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: in the disclosure, whether a filter element exists in the air purification equipment is determined according to the actual power of the motor in the air purification equipment rotating at the specified rotating speed and the power threshold corresponding to the specified rotating speed, and on the premise of not increasing the hardware cost, whether the filter element exists in the air purification equipment can be judged. Therefore, the method and the device for detecting the filter element according to the aspects of the disclosure save hardware cost, and can accurately judge whether the filter element exists in the air purification equipment or not.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a flow chart illustrating a method of testing a filter cartridge according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating a method of testing a filter element according to an exemplary embodiment.
FIG. 3 is a flow chart illustrating a method of testing a filter element according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating an apparatus for detecting a filter element according to an exemplary embodiment.
Fig. 5 is a block diagram illustrating an apparatus for detecting a filter element according to an exemplary embodiment.
Fig. 6 is a block diagram illustrating an apparatus for testing a filter cartridge according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a flow chart illustrating a method of inspecting a filter element, which may be used in an air purification apparatus, such as a fresh air machine, according to an exemplary embodiment. As shown in fig. 1, the method of testing a filter cartridge comprises the steps of:
in step S11, the current power of the motor in the air cleaning apparatus is acquired while the motor is rotating at a specified rotation speed.
In step S12, it is determined whether there is a filter element in the air purification apparatus according to the power threshold corresponding to the current power and the designated rotation speed.
In the disclosure, whether the air purification equipment has the filter element or not is determined according to the actual power of the air purification equipment when the motor rotates at the specified rotating speed and the power threshold corresponding to the specified rotating speed, and the existence of the filter element in the air purification equipment can be judged on the premise of not increasing the hardware cost. Therefore, the method for detecting the filter element saves hardware cost, and can accurately judge whether the filter element exists in the air purification equipment.
Centrifugal fan blades may be used in the air cleaning apparatus. The centrifugal fan blade has the characteristics of axial air inlet and radial air outlet. When a motor in the air purification equipment rotates, the centrifugal fan blades rotate along with the motor, and air is thrown out of the centrifugal fan blades when the centrifugal fan blades rotate. The air is thrown out from the centrifugal fan blades and then gathered in the casing, and due to the low speed and high pressure, the air is discharged from the air outlet of the air purification equipment. After the air in the centrifugal fan blade is discharged, negative pressure is formed inside the air purification equipment, and the air outside the air inlet of the air purification equipment is pressed into the centrifugal fan blade under the action of atmospheric pressure. Therefore, as the centrifugal fan blades are continuously rotated, air is continuously introduced into the air cleaning apparatus and discharged from the air cleaning apparatus.
The filter core has clean air's effect, dust, grit etc. in can the filtering air, sets up the filter core in air purification equipment's air intake department, can improve the cleanliness that gets into air purification equipment air.
The filter element has an influence on the air inflow of the air purification equipment. Under the condition that the air inlet of the air purification equipment is not provided with the filter element, when the motor drives the centrifugal fan blades to rotate, the air inlet amount of the air purification equipment is larger, and the air resistance borne by the centrifugal fan blades is larger. Under the condition that the air inlet of the air purification equipment is provided with the filter element, the air inlet amount of the air purification equipment is smaller when the motor drives the centrifugal fan blades to rotate, and the air resistance borne by the centrifugal fan blades is smaller. Therefore, in the case where the motors are rotated at the same rotational speed, the power of the motors is much greater in the air cleaning apparatus without the filter element than in the air cleaning apparatus with the filter element.
The rotation speed specified in step S11 may be used to indicate the rotation speed that the motor needs to reach when detecting whether or not there is a filter cartridge in the air cleaning apparatus. The designated rotating speed can be set according to needs, and the designated rotating speed is not limited in the embodiment of the disclosure. The current power may be used to represent the actual power of the motor in the air cleaning apparatus when the motor is rotating at a specified rotational speed.
The power threshold corresponding to the designated speed in step S12 can be used to measure whether the current power of the motor is a larger value or a smaller value when the motor rotates at the designated speed. Since the power of the motor is much greater without the filter element in the air cleaning apparatus than with the filter element in the air cleaning apparatus, in the case where the motor is rotated at the same rotational speed. Therefore, it is determined that there is no filter element in the air cleaning apparatus when the current power is a large value, and it is determined that there is a filter element in the air cleaning apparatus when the current power is a small value. Therefore, in the embodiment of the disclosure, whether the filter element exists in the air purification device can be determined according to the power threshold value corresponding to the current power and the specified rotating speed.
In one possible implementation, steps S11 and S12 may be performed when the air purification apparatus is powered on. After the air purification device is started each time, the air purification device rapidly increases the rotation speed of the motor from 0 to the designated rotation speed, and then determines whether the air purification device has a filter element through steps S11 and S12.
Fig. 2 is a flow chart illustrating a method of testing a filter element according to an exemplary embodiment. As shown in fig. 2, step S12 includes step S121 and step S122.
In step S121, if the current power is greater than the power threshold, it is determined that there is no filter element in the air purification apparatus.
In step S122, if the current power is less than or equal to the power threshold, it is determined that a filter element exists in the air purification apparatus.
When the current power is greater than the power threshold, indicating that the current power is a larger value, it can be determined that the air cleaning device does not have a filter element. When the current power is less than or equal to the power threshold, indicating that the current power is a smaller value, it can be determined that the filter element is present in the air purification apparatus.
In one possible implementation, the power supply to the motor may be stopped when the current power is greater than the power threshold. Therefore, the idle running of the air purification equipment without the filter element can be avoided.
In one possible implementation, after determining that a filter element is present in the air purification apparatus, the method further includes: and adjusting the rotating speed of the motor to the rotating speed in normal operation. Therefore, when the filter element is arranged in the air purification equipment, the air purification equipment can work normally.
Air purification equipment can normally work when having the filter core in air purification equipment, and air purification equipment can adjust the rotational speed of motor to the rotational speed of normal during operation this moment to air-purifying. Wherein, the rotational speed of motor normal operating time can have a plurality ofly, and air purification equipment can be according to the rotational speed of the gear adjustment motor that the user set up. For example, the air purification device has three gears, I, II and III, and when the user selects the I gear, after it is determined that the filter element is in the air purification device, the air purification device can adjust the rotation speed of the motor to the rotation speed corresponding to the I gear.
FIG. 3 is a flow chart illustrating a method of testing a filter element according to an exemplary embodiment. As shown in fig. 3, the method for detecting a filter cartridge further includes steps S13 and S14.
In step S13, the power of the motor rotating at the predetermined rotation speed is detected to obtain a first power and a second power in a state where the filter element is present and in a state where the filter element is absent in the air cleaning apparatus.
In step S14, the power threshold is determined according to the first power and the second power, and the power threshold is greater than the first power and less than the second power.
The first power is the actual power when the motor rotates at a specified rotation speed in the case of a filter element in the air cleaning apparatus. The second power is an actual power when the motor is rotated at a designated rotation speed without the filter cartridge in the air cleaning apparatus. As previously mentioned, the first power is less than the second power.
The power threshold may be a value greater than the first power and less than the second power. When the current power is larger than the power threshold value, the current power is biased to the second power, and the air purification device is not provided with a filter element. The power threshold is smaller than or equal to the first power, the current power is biased to the first power, and a filter element is arranged in the air purification device. Thus, by comparing the current power to the power threshold, it can be determined whether the current power is smaller or larger, thereby determining whether a filter cartridge is present in the air cleaning apparatus.
The second power may be substantially greater than the first power. In one example, the power threshold may be set to a value slightly larger than the first power, and the power threshold may be set to 1.2-2 times, for example, 1.5 times, the first power in consideration of instantaneous interference.
In one possible implementation, the designated rotational speed may be greater than the rotational speed at which the motor operates normally. For example, the specified rotation speed may be the maximum rotation speed of the motor. The maximum rotating speed of the motor is the maximum value which can be reached by the rotating speed of the motor under the normal power supply frequency.
The larger the rotation speed is, the more the power difference of the motor is between the filter element and the motor. Therefore, the designated rotating speed is greater than the rotating speed of the motor in normal working, so that the judgment of whether the current power is larger or smaller is facilitated, and the judgment accuracy can be improved.
In one possible implementation, the protection power of the motor in the air cleaning device is the power threshold. The protection power of the motor is the maximum power which can be operated by the motor. When the current power of the motor is larger than the protection power, the motor starts protection and stops working, and when the current power of the motor is smaller than or equal to the protection power, the motor continues working without starting protection.
In the case where the protection power of the motor is set to the power threshold, when the motor rotates at the designated rotation speed, the air cleaning apparatus may determine a relationship between the current power of the motor and the power threshold corresponding to the designated rotation speed according to whether the motor starts protection (whether to stop operation), thereby determining whether the filter element is present in the air cleaning apparatus. If the motor is not protected (not stopped), the current power of the motor is smaller than or equal to the power threshold, and at this time, it can be determined that a filter element is arranged in the air purification equipment, and the air purification equipment can adjust the rotating speed of the motor to the rotating speed in normal operation. If the motor starts protection (stops working), which indicates that the current power of the motor is larger than the power threshold value, it can be determined that no filter element exists in the air purification device. Thus, the embodiment of the disclosure can realize the judgment without the filter element by utilizing the protection function of the motor.
It should be noted that, in order to ensure the normal operation of the air purification apparatus, when the protection power of the motor is set to the power threshold, the designated rotation speed may be set to be greater than the rotation speed when the motor is operating normally. Therefore, when the motor works normally and the air purification equipment is provided with the filter element, the opening of the motor protection function can not be triggered.
Fig. 4 is a block diagram illustrating an apparatus for detecting a filter element according to an exemplary embodiment. The device can be applied to air purification equipment. Referring to fig. 4, the apparatus 40 includes: an acquisition module 41 and a first determination module 42.
The obtaining module 41 is configured to obtain the current power of a motor in the air purification apparatus when the motor rotates at a specified rotation speed;
the first determination module 42 is configured to determine whether a filter element is present in the air purification apparatus according to a power threshold corresponding to the current power and the designated rotation speed.
Fig. 5 is a block diagram illustrating an apparatus for detecting a filter element according to an exemplary embodiment. Referring to fig. 5, in one possible implementation, the first determining module 42 includes: a first determination submodule 421 and a second determination submodule 422.
The first determining submodule 421 is configured to determine that there is no filter element in the air cleaning device when the current power is greater than the power threshold;
the second determination submodule 422 is configured to determine that a filter element is present in the air purification apparatus when the current power is less than or equal to the power threshold.
In one possible implementation, the apparatus 40 further includes: a detection module 43 and a second determination module 44.
The detecting module 43 is configured to detect the power of the motor rotating at the specified rotation speed to obtain a first power and a second power in the state that the air purifying device has a filter element and does not have the filter element;
the second determination module 44 is configured to determine the power threshold from the first power and the second power, the power threshold being greater than the first power and less than the second power.
In a possible implementation, the apparatus 40 further includes an adjusting module 45.
The adjustment module 45 is configured to adjust the rotational speed of the motor to a rotational speed at normal operation.
In one possible implementation, the apparatus 40 further includes a stopping module 46.
The stop module 46 is configured to stop powering the motor when the current power is greater than the power threshold.
In one possible implementation, the specified rotation speed is greater than the rotation speed at which the motor normally operates.
In one possible implementation, the protection power of the motor is the power threshold.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
In the disclosure, whether a filter element exists in the air purification equipment is determined according to the actual power of the motor in the air purification equipment rotating at the specified rotating speed and the power threshold corresponding to the specified rotating speed, and on the premise of not increasing the hardware cost, whether the filter element exists in the air purification equipment can be judged. Therefore, according to the device for detecting the filter element disclosed by the invention, the hardware cost is saved, and whether the filter element exists in the air purification equipment or not can be accurately judged.
Fig. 6 is a block diagram illustrating an apparatus 800 for testing a filter cartridge, according to an exemplary embodiment. For example, the apparatus 800 may be an air purifier, a ventilator, a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like having an air purifying function.
Referring to fig. 6, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A method of testing a filter cartridge, the method being applied to an air purification apparatus, the method comprising:
when a motor in the air purification equipment rotates at a specified rotating speed, acquiring the current power of the motor, wherein the specified rotating speed is greater than the rotating speed of the motor in normal operation;
determining whether a filter element exists in the air purification equipment or not according to the power threshold value corresponding to the current power and the specified rotating speed;
the determining whether a filter element exists in the air purification equipment or not according to the power threshold corresponding to the current power and the specified rotating speed comprises the following steps: if the current power is larger than the power threshold, determining that no filter element exists in the air purification equipment; if the current power is smaller than or equal to the power threshold, determining that a filter element exists in the air purification equipment;
and after the air purification equipment is started up every time, the air purification equipment raises the rotating speed of the motor to the specified rotating speed.
2. The method of claim 1, further comprising:
detecting the power of the motor rotating at the specified rotating speed under the conditions that the air purification equipment is provided with and without a filter element respectively to obtain a first power and a second power;
determining the power threshold from the first power and the second power, the power threshold being greater than the first power and less than the second power.
3. The method of claim 1, wherein after determining that a filter cartridge is present in the air purification apparatus, the method further comprises:
and adjusting the rotating speed of the motor to the rotating speed in normal operation.
4. The method of claim 1, further comprising:
and if the current power is larger than the power threshold, stopping supplying power to the motor.
5. The method of claim 1, wherein the protection power of the motor is the power threshold.
6. A device for detecting a filter element, characterized in that it is applied to an air purification apparatus, comprising:
the acquisition module is used for acquiring the current power of a motor in the air purification equipment when the motor rotates at a specified rotating speed, wherein the specified rotating speed is greater than the rotating speed of the motor in normal work;
the first determining module is used for determining whether a filter element exists in the air purifying equipment or not according to the current power and a power threshold corresponding to the specified rotating speed;
the first determining module includes: a first determining submodule for determining that no filter element is present in the air purification apparatus when the current power is greater than the power threshold; the second determining submodule is used for determining that a filter element exists in the air purifying equipment when the current power is smaller than or equal to the power threshold;
and after the air purification equipment is started up every time, the air purification equipment raises the rotating speed of the motor to the specified rotating speed.
7. The apparatus of claim 6, further comprising:
the detection module is used for detecting the power of the motor rotating at the specified rotating speed to obtain a first power and a second power under the condition that the air purification equipment has a filter element and does not have the filter element;
a second determining module, configured to determine the power threshold according to the first power and the second power, where the power threshold is greater than the first power and less than the second power.
8. The apparatus of claim 6, further comprising:
and the adjusting module is used for adjusting the rotating speed of the motor to the rotating speed in normal working.
9. The apparatus of claim 6, further comprising:
and the stopping module is used for stopping supplying power to the motor when the current power is greater than the power threshold value.
10. The apparatus of claim 6, wherein the protection power of the motor is the power threshold.
11. An apparatus for testing a filter cartridge, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of any one of claims 1 to 5.
12. A non-transitory computer readable storage medium, wherein instructions in the storage medium, when executed by a processor, enable the processor to perform the method of any of claims 1-5.
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| CN109061738B (en) * | 2018-08-27 | 2021-08-03 | 北京小米移动软件有限公司 | Detection method and device for filter element packaging bag and storage medium |
| CN109966808B (en) * | 2019-03-27 | 2021-07-23 | 北京小米移动软件有限公司 | Filter element detection method and device, readable storage medium and electronic equipment |
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| US5810908A (en) * | 1997-05-02 | 1998-09-22 | Bemis Manufacturing Company | Electronic control for air filtering apparatus |
| JP2006239655A (en) * | 2005-03-07 | 2006-09-14 | Kuroda Pneumatics Ltd | In-line filter device |
| CN104833048B (en) * | 2015-04-27 | 2017-07-28 | 广东美的制冷设备有限公司 | The filter screen of clarifier installs based reminding method, device and clarifier |
| CN105126461A (en) * | 2015-07-01 | 2015-12-09 | 小米科技有限责任公司 | Filter-core installation prompt method and apparatus |
| WO2018032257A1 (en) * | 2016-08-15 | 2018-02-22 | 吴鹏 | Multi-air-conditioning-outlet power regulation method and system for campus |
| CN106382709B (en) * | 2016-08-26 | 2019-04-09 | 珠海格力电器股份有限公司 | The dirty stifled detection method of filter screen of air conditioner and system and air conditioner |
| CN106440210A (en) * | 2016-09-28 | 2017-02-22 | 海信科龙电器股份有限公司 | Cleaning detection method, device and cleaning equipment |
| CN106524400B (en) * | 2016-10-24 | 2019-08-23 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| CN106679084B (en) * | 2016-12-27 | 2019-09-10 | 江苏中科睿赛污染控制工程有限公司 | A kind of method of the strainer prompt replacement of fresh air system |
| CN107328024A (en) * | 2017-07-07 | 2017-11-07 | 深圳市鑫开源电子有限公司 | Screen pack stopping state detection method and air cleaning facility |
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2018
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