CN111854043A - Filter screen cleanliness detection device, method and system and air treatment equipment - Google Patents

Filter screen cleanliness detection device, method and system and air treatment equipment Download PDF

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Publication number
CN111854043A
CN111854043A CN201910364897.9A CN201910364897A CN111854043A CN 111854043 A CN111854043 A CN 111854043A CN 201910364897 A CN201910364897 A CN 201910364897A CN 111854043 A CN111854043 A CN 111854043A
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China
Prior art keywords
detection
air
filter screen
cleanliness
power
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CN201910364897.9A
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Chinese (zh)
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CN111854043B (en
Inventor
唐楚强
刘光有
杨会敏
周永志
柳烨
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32Responding to malfunctions or emergencies
    • F24F11/39Monitoring filter performance
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • F24F11/526Indication arrangements, e.g. displays giving audible indications
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to a device, a method and a system for detecting cleanliness of a filter screen and air treatment equipment, wherein an air duct of the air treatment equipment penetrates through the filter screen, and the detection device comprises a detection air duct which is communicated with the air duct and is connected in parallel with the air duct; a first temperature sensor, a heating element and a second temperature sensor are sequentially arranged in the detection air channel according to the air flow direction. By arranging the independent detection air channel, the influence of environmental factors and a self system can be avoided, and the influence of the running environment of the air treatment equipment is avoided, so that the detection accuracy of the detection device is effectively improved, and the sealing property of the air channel is not influenced; through setting up two temperature sensor and the heating member between the two, whether the temperature difference's that utilizes the air current to form behind the heating member change comes the judgement filthy stifled degree and filthy stifled, has improved the precision and the accuracy that the cleanliness detected greatly.

Description

Filter screen cleanliness detection device, method and system and air treatment equipment
Technical Field
The invention relates to the technical field of household appliances, in particular to a device, a method and a system for detecting the cleanliness of a filter screen and air treatment equipment.
Background
In recent years, more and more air conditioners appear in the living environment of people, and the use frequency of the air conditioners is greatly improved compared with the prior art. The filter screen in the air conditioner has the filtration dust, prevents the inside effect that takes place to pollute of air conditioner, and behind the filter screen laying dust, the air output of air conditioner has probably been reduced, influences the refrigeration ability of air conditioner, if the system keeps the air output unchangeable, then the pressure differential of filter screen both sides can the grow, simultaneously, breeds the bacterium easily, produces certain influence to the room air quality, causes the waste of the energy and causes the healthy threat of user. Most of the existing air conditioners have an automatic filter screen filth blockage reminding function, the filter screen filth blockage situation of the air conditioner is detected by judging the service time of the air conditioner, but the detection environment depends on the influence of the indoor environment, so that the detection precision is greatly influenced; the other air conditioner judges filth blockage by detecting the wind speed blown out by the filter screen through wind speed induction, and because the air conditioner is influenced by environmental factors and a self system during operation, uneven wind speed is easy to occur, and inaccurate judgment is often caused; the other type detects filth blockage detected by the filter screen by detecting accumulated cleaning time count of the air conditioner filter screen and deducing the concentration of particulate matters in a room, and the main factors of the detection mode are calculating the accumulated cleaning time count of the air conditioner filter screen and detecting the concentration of the particulate matters in the room, so that the detection mode is greatly influenced by the indoor environment, and the detection precision is reduced; and an infrared emitter and an infrared receiver are utilized, the currently adopted infrared light source is mainly an LED, and the detection precision is easily reduced due to the limitation that the light source is easily influenced by dust existing in the LED.
Therefore, it is desirable to provide a device, a method, a system and an air processing apparatus for detecting cleanliness of a filter screen to solve the deficiencies of the prior art.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a filter screen cleanliness detection device, a filter screen cleanliness detection method, a filter screen cleanliness detection system and air treatment equipment.
A filter screen cleanliness detection device is applied to air treatment equipment, an air duct of the air treatment equipment penetrates through a filter screen, and the detection device comprises a detection air duct which is communicated with the air duct and is connected with the air duct in parallel;
a first temperature sensor, a heating element and a second temperature sensor are sequentially arranged in the detection air channel according to the air flow direction.
Furthermore, the air processing device is provided with a detection carrier on the inner side of the filter screen, an air inlet channel and an air outlet channel which respectively penetrate through the detection carrier are arranged in the detection carrier, and the air inlet channel and the air outlet channel are respectively vertical to the air flow direction in the air channel;
one end of the air inlet channel is communicated with one end of the air outlet channel through a detection pipe, and the air inlet channel, the channel in the detection pipe and the air outlet channel form a detection air channel;
the first temperature sensor, the heating member and the second temperature sensor are sequentially arranged in the detection pipe.
Furthermore, a sealing element is arranged between the air inlet of the detection tube and the air inlet channel, and a sealing element is arranged between the air outlet of the detection tube and the air outlet channel.
Furthermore, the detection tube is U-shaped and comprises an air inlet section, a detection section and an air outlet section which are sequentially connected, the air inlet section and the air outlet section are respectively vertical to the detection section, and the included angle between the air flow direction in the detection section and the air flow direction in the air duct ranges from 90 degrees to 180 degrees;
the first temperature sensor, the heating member and the second temperature sensor are sequentially arranged in the detection section.
Furthermore, the cross sections of the air inlet channel, the air outlet channel and the channel in the detection pipe are circular.
Furthermore, the detection carrier is provided with a wind resistance plate at one side of the inlet of the air inlet channel, and the inlet of the air inlet channel and the wind resistance plate are sequentially arranged along the air flow direction in the air channel.
Furthermore, the dust collector also comprises a dust detector and a dust remover which are arranged in the air inlet channel.
Furthermore, the dust detector is an ultrasonic detector, the ultrasonic detector is arranged at one radial end of the air inlet channel, the dust remover is arranged at one radial end of the air inlet channel, and the first radial direction is perpendicular to the second radial direction.
Based on the same invention thought, the invention provides a method for detecting the cleanliness of a filter screen, which comprises the following steps:
acquiring a first temperature sensed by a first temperature sensor and a second temperature detected by a second temperature sensor;
calculating a real-time difference value of the first temperature and the second temperature, comparing the real-time difference value with a preset difference value, and determining the cleanliness of the filter screen according to a comparison result;
and storing the cleanliness of the filter screen.
Further, before the obtaining of the first temperature sensed by the first temperature sensor and the second temperature detected by the second temperature sensor, the detection method further includes: and sending a heating instruction.
Further, before the obtaining of the first temperature sensed by the first temperature sensor and the second temperature detected by the second temperature sensor, the detection method further includes:
acquiring a power-on and power-off storage state;
if the power-on and power-off storage state is the power-on state, no action is performed, and if the power-on and power-off storage state is the power-off state, the difference value of the first temperature and the second temperature corresponding to each gear is recorded as the preset difference value of each gear;
and sending a calibration completion signal and changing the power-on and power-off storage state into a power-on state.
Further, after the sending of the calibration completion signal and the changing of the power-on/off storage state to the power-on state, the detection method further includes: and acquiring the power-on and power-off signal, changing the power-on and power-off storage state into a power-off state and deleting the record information of the preset difference value until the power-off signal is acquired.
Further, the comparing the real-time difference value with a preset difference value and determining the cleanliness of the filter screen according to the comparison result comprises:
acquiring gear information and selecting a preset difference corresponding to the acquired gear according to the gear information;
and when the real-time difference is smaller than the preset difference, determining that the cleanliness of the filter screen is dirty and blocked.
Further, when the real-time difference is smaller than the preset difference, determining that the cleanliness of the filter screen is dirty and blocked comprises:
and when the real-time difference is 1 ℃ lower than the preset difference, determining that the cleanliness of the filter screen is a dirty and blocked grade, and when the difference between the real-time difference and the preset difference is increased by 1 ℃, increasing the cleanliness of the filter screen by one grade.
Further, the detection method comprises the following steps:
acquiring dust detection result information;
when the detection result information indicates that dust exists, a dust removal signal is sent;
and when the detection result information is that no dust exists, sending a dust removal stopping signal.
Further, after storing the cleanliness of the filter screen, the detection method further comprises:
acquiring the cleanliness of the filter screen;
when the cleanliness of the filter screen is greater than or equal to the filth blockage level, generating a voice reminding instruction and a repair instruction;
and executing the voice reminding instruction, and generating and sending a repair signal according to the repair instruction.
Further, the executing the voice reminding instruction comprises:
and acquiring identification information, and executing a voice reminding instruction when the identification information identical to the preset identification information is acquired.
Further, after the obtaining of the cleanliness of the filter screen, the detection method further includes:
and when the cleanliness of the filter screen is greater than or equal to the filth blockage level, generating and sending a mobile terminal reminding signal.
Based on the same invention thought, the invention also provides a filter screen cleanliness detection system, which comprises a processor and a memory; the processor is used for executing the detection program stored in the memory so as to realize the detection method.
Based on the same invention idea, the invention also provides air treatment equipment which comprises the filter screen cleanliness monitoring device and the filter screen cleanliness detection system.
Compared with the closest prior art, the technical scheme of the invention has the following advantages:
according to the filter screen cleanliness detection device provided by the technical scheme, the single detection air channel is arranged, so that the influence of environmental factors and self systems can be avoided, the influence of the operation environment of air treatment equipment is avoided, the detection accuracy of the detection device is effectively improved, and the sealing performance of the air channel cannot be influenced; through setting up two temperature sensor and the heating member between the two, whether the temperature difference's that utilizes the air current to form behind the heating member change comes the judgement filthy stifled degree and filthy stifled, has improved the precision and the accuracy that the cleanliness detected greatly.
Drawings
FIG. 1 is a schematic diagram of a detection device provided by the present invention;
FIG. 2 is a schematic structural diagram of a detection carrier provided in the present invention;
FIG. 3 is a side view of a test carrier provided in the present invention;
fig. 4 is a flow chart of a detection method provided by the present invention.
Wherein, 1-an air inlet duct; 2-air outlet channel; 3-detecting the carrier; 4-a wind resistance plate; 5-mounting holes; 6-a dust detector; 7-a dust remover; 8-air inlet section; 9-detection section; 10-air outlet section; 11-a seal; 12-an air duct; 13-a first temperature sensor; 14-a heating element; 15-second temperature sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in fig. 1 to 3, the present invention provides a device for detecting cleanliness of a filter screen, which is applied to an air treatment device, wherein an air duct 12 of the air treatment device penetrates through the filter screen, and the detection device comprises a detection air duct which is communicated with the air duct 12 and is connected in parallel to the air duct 12; and a first temperature sensor 13, a heating element 14 and a second temperature sensor 15 are sequentially arranged in the detection air channel according to the air flow direction.
By arranging the independent detection air channel, the influence of environmental factors and a self system can be avoided, and the influence of the running environment of the air treatment equipment is avoided, so that the detection accuracy of the detection device is effectively improved, and the sealing performance of the air channel 12 is not influenced; through setting up two temperature sensor and the heating member 14 between the two, whether dirty stifled degree and dirty stifled degree are judged to the temperature difference's that utilizes the air current to form behind heating member 14 change, have improved the precision and the accuracy that the cleanliness detected greatly.
In some embodiments of the present invention, the air treatment equipment is provided with a detection carrier 3 inside the filter screen, the mounting carrier is provided with at least two mounting holes 5, the detection carrier 3 is mounted inside the filter screen through mounting pieces penetrating through the mounting holes 3, and the detection carrier 3 can be mounted on a heat exchanger partition plate through bolts, for example; an air inlet channel 1 and an air outlet channel 2 which respectively penetrate through the detection carrier 3 are arranged in the detection carrier 3, and the air inlet channel 1 and the air outlet channel 2 are respectively vertical to the air flow direction in the air duct 12; one end of the air inlet channel 1 is communicated with one end of the air outlet channel 2 through a detection pipe, and the air inlet channel 1, the channel in the detection pipe and the air outlet channel 2 form a detection air channel; the first temperature sensor 13, the heating member 14, and the second temperature sensor 15 are sequentially provided in the detection pipe.
The air inlet channel 1 and the air outlet channel 2 are arranged in the detection carrier 3, the detection carrier 3 is arranged on the inner side of the filter screen, the filter screen is an air inlet, the filter screen is used for filtering sundries in the air at the air inlet, and the detection carrier 3 is arranged at the position, so that the cleanliness of the filter screen is more accurately detected, and the influence of parts in the filter screen is avoided; with two sensors and the two between the two heating member 14 setting alone set up and communicate in inlet air duct 1 and air-out passageway 2's the detecting tube, can provide a good detection ring border for temperature sensor and heating member 14, and through the independent setting with inlet air duct 1 and air-out passageway 2, can avoid air conditioner operational environment's influence and self systematic influence.
In some embodiments of the present invention, a sealing member 11 is disposed between the air inlet of the detection tube and the air inlet channel 1, and a sealing member 11 is disposed between the air outlet of the detection tube and the air outlet channel 2.
The design of the sealing element 11 improves the sealing performance of the whole detection air channel, and simultaneously, the error between the air speed in the air channel 12 and the air speed when the air flow penetrates through the filter screen is reduced as much as possible, so that the air speed when the air flow penetrates through the filter screen can be represented more effectively, and the detection result is more accurate.
In some embodiments of the present invention, the detection tube is U-shaped, and includes an air inlet section 8, a detection section 9, and an air outlet section 10, which are connected in sequence, the air inlet section 8 and the air outlet section 10 are respectively perpendicular to the detection section 9, and an included angle between an air flow direction in the detection section 9 and an air flow direction in the air duct 12 is 90 ° -180 °; the first temperature sensor 13, the heating member 14 and the second temperature sensor 15 are sequentially provided in the detection section 9.
The U-shaped design of the detection tube ensures that the detection section 9 provided with the two sensors and the heating element 14 between the two sensors is vertical to the air inlet channel 1 and the air outlet channel 2, thus ensuring that the air flow passing through the two sensors is completely independent of the air flow in the air channel 12, avoiding the influence of the operating environment of the air treatment equipment and effectively improving the detection accuracy; meanwhile, the flow direction of the air flow in the detection section 9 is 90-180 degrees to the flow direction of the air flow in the air duct 12, so that the flow direction of the air flow in the detection section 9 is different from or even opposite to the flow direction of the air flow in the air duct 12, and the influence of the flow direction in the air duct 12 is completely avoided.
In some embodiments of the present invention, the cross-sections of the air inlet channel 1, the air outlet channel 2 and the channel in the detection tube are circular.
The detection air channel is in a circular channel form, so that the air flow can flow more uniformly and stably, and the detection result cannot be influenced due to uneven wind speed.
In some embodiments of the present invention, the detection carrier 3 is provided with a wind resistance plate 4 at one side of the inlet of the air inlet channel 1, and the inlet of the air inlet channel 1 and the wind resistance plate 4 are sequentially arranged along the air flow direction in the air duct 12.
The wind resistance plate 4 can guide part of the air flow of the air duct 12 to enter the air inlet channel 1 of the detection channel, so that the detection precision is improved, and the inaccurate detection effect caused by the fact that the air flow directly passes through the air inlet channel 1 is prevented.
In some embodiments of the present invention, the air cleaner further comprises a dust detector 6 and a dust remover 7 arranged in the air intake channel 1.
The dust detector 6 can detect the dust condition in the air intake passage 1, and the dust remover 7 can remove dust when dust is detected.
In some embodiments of the present invention, the dust detector 6 is an ultrasonic detector, the ultrasonic detector is disposed at one end of the air intake channel 1 in a first radial direction, and the dust catcher 7 is disposed at one end of the air intake channel 1 in a second radial direction, the first radial direction being perpendicular to the second radial direction.
Ultrasonic detector and dust remover 7 set up perpendicularly, can make and detect and remove dust in the direction of difference, and ultrasonic detector passes through the transmission ultrasonic wave, receive the ultrasonic wave, then calculate the time difference of transmission and receipt, if the time difference extension appears, then can judge because there is the dust, it causes the interference to ultrasonic wave propagation and has sent, the time of time difference extension is different, then how much the difference of dust, if reach certain rank, then can start dust remover 7 and remove dust, be equipped with the fan blade in the dust remover 7, the fan blade antiport during the dust removal, then can adsorb the dust, the effect of removing dust has been played.
Example 2
As shown in fig. 4, based on the same invention concept, the invention provides a method for detecting cleanliness of a filter screen, which comprises the following steps: s1: acquiring a first temperature sensed by the first temperature sensor 13 and a second temperature sensed by the second temperature sensor 15; s2, calculating a real-time difference value between the first temperature and the second temperature, comparing the real-time difference value with a preset difference value, and determining the cleanliness of the filter screen according to the comparison result; and S3, storing the cleanliness of the filter screen.
First temperature sensor 13 is before heating member 14, second temperature sensor 15 is behind heating member 14, under the effect of air current and heating member 14 again, the temperature that second temperature sensor 15 sensed is higher than the temperature that first temperature sensor 13 sensed, and there is a relatively fixed temperature difference, be the preset difference promptly, and the preset difference is exactly the difference of the induction temperature of two temperature sensor when setting up this temperature difference, that is the change of the relative preset difference of real-time difference, the cleanliness of filter screen and the change between the filter screen cleanliness this moment when the reaction is exactly setting up the preset difference, the frequency of detection detects once for a minute, the filter screen cleanliness that reachs after detecting every time is saved, in order to be ready to read.
In some embodiments of the present invention, before acquiring the first temperature sensed by the first temperature sensor 13 and the second temperature detected by the second temperature sensor 15, the detection method further includes: and sending a heating instruction.
Before the temperature is detected, a heating command should be sent to cause the heating member 14 to heat at a predetermined power, and the heating member 14 may be a heating plate.
In some embodiments of the present invention, before acquiring the first temperature sensed by the first temperature sensor 13 and the second temperature detected by the second temperature sensor 15, the detection method further includes: acquiring a power-on and power-off storage state; if the power-on and power-off storage state is the power-on state, no action is performed, and if the power-on and power-off storage state is the power-off state, the difference value of the first temperature and the second temperature corresponding to each gear is recorded as the preset difference value of each gear; and sending a calibration completion signal and changing the power-on and power-off storage state into a power-on state.
The setting step of the preset difference value has been described above, and when the air conditioner is powered off or moved, the preset difference value needs to be reset, i.e., from the original state of cleanliness of the newly selected screen, and therefore a reset of the preset difference value is required after each power cut, and therefore an action is determined according to the power-on and power-off stored state, i.e. no action at power-on, because the power-on state indicates that the preset difference has been set, and at power-off, preset difference values of all gears are required to be set, the wind speeds of all gears are different, so that the corresponding preset difference values are different and need to be respectively and independently set, and the corresponding preset difference value is adjusted according to the detected gear during detection, the power-on and power-off storage state is changed into the power-on state after the setting is finished, then there may be no action, i.e. no action to set the preset difference value again, when the power-on/off storage state is acquired next time.
In some embodiments of the present invention, after the sending a calibration complete signal and changing the power-on/off storage state to the power-on state, the detection method further includes: and acquiring the power-on and power-off signal, changing the power-on and power-off storage state into a power-off state and deleting the record information of the preset difference value until the power-off signal is acquired.
After the preset difference value is set, if the power is not cut off all the time and the power on/off state is not changed, the reset is not needed all the time, but after the power off signal is obtained, the power on/off storage state needs to be changed and the reset is carried out.
In some embodiments of the present invention, the comparing the real-time difference with a preset difference and determining the cleanliness of the filter screen according to the comparison result includes: acquiring gear information and selecting a preset difference corresponding to the acquired gear according to the gear information; and when the real-time difference is smaller than the preset difference, determining that the cleanliness of the filter screen is dirty and blocked.
The foregoing has described that, when the real-time difference is compared with the preset difference, the preset difference corresponding to the gear during detection should be obtained, and when the filth is blocked, the wind speed is affected and becomes slow, so that the real-time difference of the temperatures sensed by the two temperature sensors at this time becomes small, i.e., smaller than the preset difference, the filth blocking condition is more serious, the difference between the real-time difference and the preset difference is larger, otherwise, the filth blocking condition can be determined by the difference between the real-time difference and the preset difference.
In some embodiments of the present invention, said determining that the cleanliness of the filter screen is dirty and clogged when the real-time difference is smaller than the preset difference comprises: and when the real-time difference is 1 ℃ lower than the preset difference, determining that the cleanliness of the filter screen is a dirty and blocked grade, and when the difference between the real-time difference and the preset difference is increased by 1 ℃, increasing the cleanliness of the filter screen by one grade.
In some embodiments of the invention, the detection method further comprises: acquiring dust detection result information; when the detection result information indicates that dust exists, a dust removal signal is sent; and when the detection result information is that no dust exists, sending a dust removal stopping signal.
The position and operation of the ultrasonic detector and the dust remover 7 have been described above, but it is necessary to determine the sending of the dust removal signal and the dust removal stop signal by acquiring the detection result of the ultrasonic detector, and then control the dust removing device to remove dust and stop removing dust.
In some embodiments of the invention, after said storing said screen cleanliness, said testing method further comprises: acquiring the cleanliness of the filter screen; when the cleanliness of the filter screen is greater than or equal to the filth blockage level, generating a voice reminding instruction and a repair instruction; and executing the voice reminding instruction, and generating and sending a repair signal according to the repair instruction.
By acquiring the cleanliness of the newly stored filter screen, a reminding instruction and a repair instruction are generated according to the filth blockage situation, namely, when the filth is blocked, reminding and repair are carried out, and a repair signal is sent to a maintenance center to remind the maintenance center of the filth blockage situation.
In some embodiments of the invention, the executing the voice alert instruction comprises: and acquiring identification information, and executing a voice reminding instruction when the identification information identical to the preset identification information is acquired.
The voice reminding needs to take place a regular effect when a related user is in an environment, so that the voice reminding instruction is executed only by acquiring identification information and comparing the identification information with preset identification information, if the identification information is consistent with the preset identification information, the identification information can be set to be the voice or image of the user, and the voice reminding instruction is executed only when the voice or image of the user is identified.
In some embodiments of the present invention, after said obtaining the cleanliness of the filter screen, the inspection method further comprises: and when the cleanliness of the filter screen is greater than or equal to the filth blockage level, generating and sending a mobile terminal reminding signal.
The mobile terminal is mainly a mobile phone of a user, a reminding signal is sent to the mobile phone through a wireless network, the user can quickly know the filth blockage condition by checking the reminding signal, meanwhile, after receiving the repair reporting signal, the maintenance center can send an appointment message to the corresponding mobile phone of the user, and the user can reply the appointment of the maintenance center through the mobile phone, make an appointment and further organize the maintenance.
Example 3
Based on the same invention thought, the invention also provides a filter screen cleanliness detection system, which comprises a processor and a memory; the processor is used for executing the detection program stored in the memory so as to realize the detection method.
Example 4
Based on the same invention idea, the invention also provides air treatment equipment which comprises the filter screen cleanliness monitoring device and the filter screen cleanliness detection system.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within 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), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented by means of units performing the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (20)

1. A filter screen cleanliness detection device is applied to air treatment equipment, and an air duct of the air treatment equipment penetrates through a filter screen, and is characterized by comprising a detection air duct communicated with the air duct (12) and connected in parallel with the air duct;
a first temperature sensor (13), a heating element (14) and a second temperature sensor (15) are sequentially arranged in the detection air channel according to the air flow direction.
2. The filter screen cleanliness detection device according to claim 1, wherein the air treatment equipment is provided with a detection carrier (3) inside the filter screen, an air inlet channel (1) and an air outlet channel (2) which respectively penetrate through the detection carrier (3) are arranged in the detection carrier (3), and the air inlet channel (1) and the air outlet channel (2) are respectively perpendicular to the air flow direction in the air duct (12);
One end of the air inlet channel (1) is communicated with one end of the air outlet channel (2) through a detection pipe, and the air inlet channel (1), the channel in the detection pipe and the air outlet channel (2) form a detection air channel;
the first temperature sensor (13), the heating element (14) and the second temperature sensor (15) are sequentially arranged in the detection pipe.
3. The filter screen cleanliness detection device according to claim 2, wherein a sealing member (11) is arranged between the air inlet of the detection tube and the air inlet channel (1), and a sealing member (11) is arranged between the air outlet of the detection tube and the air outlet channel (2).
4. The filter screen cleanliness detection device according to claim 2, wherein the detection tube is U-shaped and comprises an air inlet section (8), a detection section (9) and an air outlet section (10) which are sequentially connected, the air inlet section (8) and the air outlet section (10) are respectively perpendicular to the detection section (9), and an included angle between the air flow direction in the detection section (9) and the air flow direction in the air duct (12) ranges from 90 degrees to 180 degrees;
the first temperature sensor (13), the heating element (14) and the second temperature sensor (15) are sequentially arranged in the detection section (9).
5. The filter screen cleanliness detection device according to claim 2, wherein the cross sections of the air inlet channel (1), the air outlet channel (2) and the channel in the detection pipe are circular.
6. The filter screen cleanliness detection device according to claim 2, wherein the detection carrier (3) is provided with a wind resistance plate (4) at one side of the inlet of the air inlet channel (1), and the inlet of the air inlet channel (1) and the wind resistance plate (4) are sequentially arranged along the air flow direction in the air duct (12).
7. The filter screen cleanliness detection device according to claim 2, further comprising a dust detector (6) and a dust remover (7) disposed in the air intake passage (1).
8. The filter screen cleanliness detection device according to claim 7, wherein the dust detector (6) is an ultrasonic detector, the ultrasonic detector is arranged at a first radial end of the air inlet channel (1), the dust remover (7) is arranged at a second radial end of the air inlet channel (1), and the first radial direction is perpendicular to the second radial direction.
9. The method for detecting the cleanliness of the filter screen is characterized by comprising the following steps:
acquiring a first temperature sensed by a first temperature sensor (13) and a second temperature detected by a second temperature sensor (15);
calculating a real-time difference value of the first temperature and the second temperature, comparing the real-time difference value with a preset difference value, and determining the cleanliness of the filter screen according to a comparison result;
And storing the cleanliness of the filter screen.
10. The method of claim 9, wherein before acquiring the first temperature sensed by the first temperature sensor (13) and the second temperature sensed by the second temperature sensor (15), the method further comprises: and sending a heating instruction.
11. The method of claim 9, wherein before acquiring the first temperature sensed by the first temperature sensor (13) and the second temperature sensed by the second temperature sensor (15), the method further comprises:
acquiring a power-on and power-off storage state;
if the power-on and power-off storage state is the power-on state, no action is performed, and if the power-on and power-off storage state is the power-off state, the difference value of the first temperature and the second temperature corresponding to each gear is recorded as the preset difference value of each gear;
and sending a calibration completion signal and changing the power-on and power-off storage state into a power-on state.
12. The method for testing as defined in claim 11, wherein after sending a calibration complete signal and changing the power-on/off storage state to the power-on state, the method further comprises: and acquiring the power-on and power-off signal, changing the power-on and power-off storage state into a power-off state and deleting the record information of the preset difference value until the power-off signal is acquired.
13. The inspection method of claim 9, wherein said comparing said real-time difference to a predetermined difference and determining a screen cleanliness based on the comparison comprises:
acquiring gear information and selecting a preset difference corresponding to the acquired gear according to the gear information;
and when the real-time difference is smaller than the preset difference, determining that the cleanliness of the filter screen is dirty and blocked.
14. The method for detecting according to claim 13, wherein said determining that the cleanliness of the filter screen is dirty when the real-time difference is smaller than the preset difference comprises:
and when the real-time difference is 1 ℃ lower than the preset difference, determining that the cleanliness of the filter screen is a dirty and blocked grade, and when the difference between the real-time difference and the preset difference is increased by 1 ℃, increasing the cleanliness of the filter screen by one grade.
15. The detection method according to claim 9, characterized in that the detection method further comprises:
acquiring dust detection result information;
when the detection result information indicates that dust exists, a dust removal signal is sent;
and when the detection result information is that no dust exists, sending a dust removal stopping signal.
16. The inspection method of claim 11, wherein after said storing said screen cleanliness, said inspection method further comprises:
Acquiring the cleanliness of the filter screen;
when the cleanliness of the filter screen is greater than or equal to the filth blockage level, generating a voice reminding instruction and a repair instruction;
and executing the voice reminding instruction, and generating and sending a repair signal according to the repair instruction.
17. The detection method of claim 11, wherein the executing the voice alert instruction comprises:
and acquiring identification information, and executing the voice reminding instruction when the identification information identical to the preset identification information is acquired.
18. The inspection method according to claim 11, wherein after said obtaining the screen cleanliness, the inspection method further comprises:
and when the cleanliness of the filter screen is greater than or equal to the filth blockage level, generating and sending a mobile terminal reminding signal.
19. The filter screen cleanliness detection system is characterized by comprising a processor and a memory; the processor is configured to execute the detection program stored in the memory to implement the detection method of any one of claims 9-18.
20. An air treatment apparatus comprising the screen cleanliness monitoring device of any one of claims 1 to 8 and the screen cleanliness detection system of claim 19.
CN201910364897.9A 2019-04-30 2019-04-30 Filter screen cleanliness detection device, method and system and air treatment equipment Active CN111854043B (en)

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