CN111854043B - 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 PDFInfo
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- CN111854043B CN111854043B CN201910364897.9A CN201910364897A CN111854043B CN 111854043 B CN111854043 B CN 111854043B CN 201910364897 A CN201910364897 A CN 201910364897A CN 111854043 B CN111854043 B CN 111854043B
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- 238000001514 detection method Methods 0.000 title claims abstract description 153
- 230000003749 cleanliness Effects 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 239000000428 dust Substances 0.000 claims description 52
- 230000008439 repair process Effects 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 238000012806 monitoring device Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 210000001835 viscera Anatomy 0.000 description 3
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- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 230000002035 prolonged effect Effects 0.000 description 2
- KLDZYURQCUYZBL-UHFFFAOYSA-N 2-[3-[(2-hydroxyphenyl)methylideneamino]propyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCCN=CC1=CC=CC=C1O KLDZYURQCUYZBL-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
- F24F11/526—Indication arrangements, e.g. displays giving audible indications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement 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 filter screen cleanliness detection device, a method, a system and air treatment equipment, wherein 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 in parallel with the air duct; the detection air duct is internally provided with a first temperature sensor, a heating piece and a second temperature sensor in sequence according to the air flow direction. By arranging the independent detection air duct, the influence of environmental factors and own systems can be avoided, the influence of the running environment of the air treatment equipment is avoided, the detection accuracy of the detection device is effectively improved, and the tightness of the air duct is not influenced; by arranging two temperature sensors and a heating element between the two temperature sensors, whether the dirt is blocked or not and the degree of the dirt is judged by utilizing the change of the temperature difference formed after the air flow passes through the heating element, and the accuracy and the precision of the cleanliness detection are greatly improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a device, a method and a system for detecting cleanliness of a filter screen and air treatment equipment.
Background
In recent years, air conditioners are increasingly used in living environments of people, and the use frequency of the air conditioners is greatly improved than before. The filter screen in the air conditioner has the effect of filtering the dust, prevents that the inside effect that pollutes of taking place of air conditioner, and the filter screen laying dust back has probably reduced the air output of air conditioner, influences the refrigerating capacity of air conditioner, if the system keeps the air output unchangeable, then the pressure differential of filter screen both sides can grow, simultaneously, breeds the bacterium easily, produces certain influence to indoor air quality, causes the waste of energy and causes user's health threat. Most of the current air conditioners have an automatic filter screen blocking reminding function, and the reminding function is to detect blocking of the filter screen of the air conditioner by judging the service time of the air conditioner, but the detection environment depends on the influence of indoor environment, so that the detection accuracy is greatly influenced; the other air conditioners are used for judging dirty blockage by detecting the wind speed blown out by the filter screen through wind speed induction, and the air conditioner is influenced by environmental factors and own systems when in operation, so that uneven wind speed is easy to occur, and inaccurate judgment is often caused; the main factors of the detection mode are that the accumulated cleaning time count of the air conditioner filter screen is calculated and the particle concentration of the room is detected, so that the detection mode is greatly influenced by the indoor environment, and the detection precision is reduced; there are also infrared emitters and infrared receivers, and since the infrared light source adopted at present is mainly an LED, the LED itself has a limitation that the light source is easily affected by dust, which easily causes a decrease in detection accuracy.
Accordingly, there is a need to provide a screen cleanliness detection device, method, system and air treatment apparatus that address the deficiencies of the prior art.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a device, a method and a system for detecting the cleanliness of a filter screen and air treatment equipment.
The utility model provides a filter screen cleanliness detection device, is applied to air treatment equipment, air flue of air treatment equipment runs through the filter screen, detection device includes with the wind flue intercommunication and parallelly connected in the detection wind flue of wind flue;
the detection air duct is internally provided with a first temperature sensor, a heating piece and a second temperature sensor in sequence according to the air flow direction.
Further, a detection carrier is arranged on the inner side of the filter screen of the air treatment device, 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 perpendicular 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 piece and the second temperature sensor are sequentially arranged in the detection tube.
Further, 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.
Further, 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 perpendicular 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 is 90-180 degrees;
the first temperature sensor, the heating piece and the second temperature sensor are sequentially arranged in the detection section.
Further, the sections of the air inlet channel, the air outlet channel and the channel in the detection tube are all round.
Further, 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.
Further, the dust collector also comprises a dust detector and a dust remover which are arranged in the air inlet channel.
Further, the dust detector is an ultrasonic detector, the ultrasonic detector is arranged at one end of the air inlet channel in the first radial direction, the dust remover is arranged at one end of the air inlet channel in the second radial direction, and the first radial direction is perpendicular to the second radial direction.
Based on the same 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 first temperature sensed by the first temperature sensor and the second temperature detected by the second temperature sensor are obtained, the detection method further includes: and sending a heating instruction.
Further, before the first temperature sensed by the first temperature sensor and the second temperature detected by the second temperature sensor are obtained, the detection method further includes:
acquiring an on-off storage state;
if the on-off storage state is the power-on state, no action is performed, and if the on-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 on-off power storage state into a power-on state.
Further, after the calibration completion signal is sent and the on-off power storage state is changed to the power-on state, the detection method further includes: and acquiring an on-off electric signal, changing the on-off storage state into an off state and deleting the record information of the preset difference value until the 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 includes:
acquiring gear information and selecting a preset difference value corresponding to the gear according to the gear information;
and when the real-time difference value is smaller than the preset difference value, determining that the cleanliness of the filter screen is dirty.
Further, when the real-time difference value is smaller than the preset difference value, determining that the filter screen cleanliness is dirty and blocked includes:
when the real-time difference value is smaller than the preset difference value by 1 ℃, determining that the cleanliness of the filter screen is a dirty first level, and when the difference value between the real-time difference value and the preset difference value is increased by 1 ℃, increasing the cleanliness of the filter screen by one level.
Further, the detection method further comprises the following steps:
acquiring dust detection result information;
when the detection result information is that dust exists, a dust removal signal is sent;
and sending a dust removal stopping signal when the detection result information is ash-free.
Further, after the storing the filter screen cleanliness, the detecting method further includes:
acquiring the cleanliness of the filter screen;
when the cleanliness of the filter screen is greater than or equal to the first grade of dirt blockage, generating a voice reminding instruction and a repair reporting instruction;
executing the voice reminding instruction, and generating and sending a repair report signal according to the repair report instruction.
Further, the executing the voice reminding instruction includes:
and acquiring the identification information, and executing a voice reminding instruction when the identification information identical to the preset identification information is acquired.
Further, after the filter screen cleanliness is obtained, the detection method further includes:
when the cleanliness of the filter screen is greater than or equal to the first level of dirt blockage, a mobile terminal reminding signal is generated and sent.
Based on the same 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 to realize the detection method.
Based on the same thought, 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 independent detection air duct is arranged, so that the influence of environmental factors and own systems can be avoided, the influence of the running environment of air treatment equipment is avoided, the detection accuracy of the detection device is effectively improved, and the tightness of the air duct is not influenced; by arranging two temperature sensors and a heating element between the two temperature sensors, whether the dirt is blocked or not and the degree of the dirt is judged by utilizing the change of the temperature difference formed after the air flow passes through the heating element, and the accuracy and the precision of the cleanliness detection are greatly improved.
Drawings
FIG. 1 is a schematic diagram of a detection device according to the present invention;
FIG. 2 is a schematic diagram of the structure of a detection carrier provided by the present invention;
FIG. 3 is a side view of a test carrier provided by the present invention;
fig. 4 is a flowchart of the detection method provided by the present invention.
Wherein, 1-an air inlet duct; 2-an air outlet duct; 3-detecting the carrier; 4-wind resistance plate; 5-mounting holes; 6-dust detector; 7-a dust remover; 8-an air inlet section; 9-a detection section; 10-an air outlet section; 11-a seal; 12-air duct; 13-a first temperature sensor; 14-heating element; 15-a second temperature sensor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 3, the present invention provides a filter screen cleanliness detection device, which is applied to an air treatment device, wherein an air duct 12 of the air treatment device penetrates through a filter screen, and the detection device comprises a detection air duct which is communicated with the air duct 12 and is connected in parallel with the air duct 12; the detection air duct is internally provided with a first temperature sensor 13, a heating element 14 and a second temperature sensor 15 in sequence according to the air flow direction.
By arranging the independent detection air duct, the influence of environmental factors and own systems can be avoided, the influence of the running environment of the air treatment equipment is avoided, the detection accuracy of the detection device is effectively improved, and the tightness of the air duct 12 is not influenced; by arranging two temperature sensors and a heating element 14 between the two temperature sensors, whether the dirt is blocked and the degree of the dirt is blocked are judged by utilizing the change of the temperature difference formed after the air flow passes through the heating element 14, and the accuracy and the precision of the cleanliness detection are greatly improved.
In some embodiments of the present invention, the air treatment device is provided with a detection carrier 3 inside the filter screen, at least two mounting holes 5 are formed on the mounting carrier, the detection carrier 3 is mounted inside the filter screen through a mounting piece penetrating through the mounting holes 3, and the detection carrier 3 can be mounted on a heat exchanger partition plate by using bolts; 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 disposed in the detection tube.
The air inlet channel 1 and the air outlet channel 2 are arranged in the detection carrier 3, the detection carrier 3 is arranged at the inner side of the filter screen, the filter screen is an air inlet, the filter screen filters sundries in the air at the air inlet, the detection carrier 3 is arranged at the position, the detection of the cleanliness of the filter screen is more accurate, and the influence of components in the filter screen is avoided; the two sensors and the heating piece 14 between the two sensors are arranged in the detection pipe which is independently arranged and communicated with the air inlet channel 1 and the air outlet channel 2, a good detection environment can be provided for the temperature sensor and the heating piece 14, and the influence of the air conditioner running environment and the influence of a system of the air conditioner running environment can be avoided through independent arrangement of the air inlet channel 1 and the air outlet channel 2.
In some embodiments of the present invention, a sealing element 11 is disposed between the air inlet of the detection tube and the air inlet channel 1, and a sealing element 11 is disposed between the air outlet of the detection tube and the air outlet channel 2.
The sealing element 11 improves the tightness of the whole detection air duct, and simultaneously reduces the error between the air speed in the air duct 12 and the air speed when the air flow penetrates through the filter screen as far as possible, so that the air speed when the air flow penetrates through the filter screen can be represented, 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 connected in sequence, where the air inlet section 8 and the air outlet section 10 are 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 in a range of 90 ° -180 °; the first temperature sensor 13, the heating element 14 and the second temperature sensor 15 are arranged in the detection section 9 in sequence.
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 is vertical to the air outlet channel 2, so that the air flow passing through the two sensors is completely independent of the air flow in the air duct 12, the influence of the running environment of the air treatment equipment is avoided, and the detection accuracy is effectively improved; meanwhile, the air flow direction in the detection section 9 and the air flow direction in the air duct 12 are 90-180 degrees, so that the difference or even the opposite of the air flow direction in the detection section 9 and the air flow direction in the air duct 12 is ensured, and the influence of the air flow direction in the air duct 12 is completely eliminated.
In some embodiments of the present invention, the cross sections of the air inlet channel 1, the air outlet channel 2 and the channels in the detection tube are all circular.
The detection air duct is in a circular channel mode, so that airflow 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 channel 12.
The wind resistance plate 4 can guide partial air flow of the air duct 12 into the air inlet channel 1 of the detection channel, so that the detection precision is improved, and 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 invention, a dust detector 6 and a dust remover 7 are also included 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 a first radial end of the air intake channel 1, and the dust remover 7 is disposed at a second radial end of the air intake channel 1, and the first radial direction is perpendicular to the second radial direction.
The ultrasonic detector and the dust remover 7 are vertically arranged, so that detection and dust removal can be performed in different directions, the ultrasonic detector transmits ultrasonic waves to receive the ultrasonic waves, then the time difference between the transmission and the reception is calculated, if the time difference is prolonged, the situation that dust exists and the propagation of the ultrasonic waves is interfered can be judged, the time difference is prolonged, the dust is different, if the dust reaches a certain level, the dust remover 7 can be started to remove dust, the fan blades are arranged in the dust remover 7, and the fan blades reversely rotate during dust removal, so that the dust can be adsorbed, and the dust removal effect is achieved.
Example 2
As shown in fig. 4, based on the same inventive 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 detected by the second temperature sensor 15; s2, 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 S3, storing the cleanliness of the filter screen.
The first temperature sensor 13 is in front of the heating element 14, the second temperature sensor 15 is behind the heating element 14, the temperature sensed by the second temperature sensor 15 is higher than the temperature sensed by the first temperature sensor 13 under the action of the re-air flow and the action of the heating element 14, a relatively fixed temperature difference is a preset difference, the preset difference is actually the difference of the sensed temperatures of the two temperature sensors when the temperature difference is set, namely the change of the real-time difference relative to the preset difference, the change between the cleanliness of the filter screen and the cleanliness of the filter screen at the moment when the preset difference is set is reflected, the detected frequency is one minute, and the cleanliness of the filter screen obtained after each detection is stored for readability.
In some embodiments of the present invention, before the 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 detecting the temperature, a heating command should be sent to heat the heating element 14 according to a predetermined power, and a heating plate may be used as the heating element 14.
In some embodiments of the present invention, before the 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 an on-off storage state; if the on-off storage state is the power-on state, no action is performed, and if the on-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 on-off power storage state into a power-on state.
The foregoing has described the setting step of the preset difference value, when the air conditioner is powered off or moved, the preset difference value needs to be reset, that is, the original state of the cleanliness of the filter screen is newly selected, so that there is a reset of the preset difference value after each power off, and therefore, the action needs to be determined according to the power on-off storage state, that is, the power on is not performed, because the power on state indicates that the preset difference value is already set, when the power off is performed, the preset difference value of each gear needs to be set, the wind speeds of the gears are different, the corresponding preset difference values also need to be set separately, and when the detection is performed, the corresponding preset difference value is acquired according to the gear at the time of detection, and when the setting is completed, the power on-off storage state is changed into the power on state, and the power on-off storage state can be obtained next time, that is not performed, that is, the setting action of the preset difference value is not allowed to be performed again.
In some embodiments of the present invention, after the calibration complete signal is sent and the on-off power storage state is changed to the power-on state, the detection method further includes: and acquiring an on-off electric signal, changing the on-off storage state into an off state and deleting the record information of the preset difference value until the 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 when the power off signal is acquired, the power on-off storage state is required to be changed and the reset is performed.
In some embodiments of the present invention, 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 includes: acquiring gear information and selecting a preset difference value corresponding to the gear according to the gear information; and when the real-time difference value is smaller than the preset difference value, determining that the cleanliness of the filter screen is dirty.
As described above, when the real-time difference is compared with the preset difference, the preset difference corresponding to the gear at the time of detection should be obtained, and when the viscera is blocked, the wind speed is affected, so that the real-time difference of the temperatures sensed by the two temperature sensors at the moment becomes slow, that is, the real-time difference is smaller than the preset difference, and the more serious the viscera is, the larger the difference between the real-time difference and the preset difference is, otherwise, the viscera blocking condition can be determined by the difference between the real-time difference and the preset difference.
In some embodiments of the present invention, when the real-time difference is smaller than the preset difference, determining that the filter screen cleanliness is dirty includes: when the real-time difference value is smaller than the preset difference value by 1 ℃, determining that the cleanliness of the filter screen is a dirty first level, and when the difference value between the real-time difference value and the preset difference value is increased by 1 ℃, increasing the cleanliness of the filter screen by one level.
In some embodiments of the invention, the detection method further comprises: acquiring dust detection result information; when the detection result information is that dust exists, a dust removal signal is sent; and sending a dust removal stopping signal when the detection result information is ash-free.
The positions and the working processes of the ultrasonic detector and the dust remover 7 have been described above, but it is necessary to determine the dust removal signal and stop the transmission of the dust removal signal by acquiring the detection result of the ultrasonic detector, thereby controlling the dust removal device to remove dust and stop the dust removal.
In some embodiments of the invention, after said storing said screen cleanliness, said detecting method further comprises: acquiring the cleanliness of the filter screen; when the cleanliness of the filter screen is greater than or equal to the first grade of dirt blockage, generating a voice reminding instruction and a repair reporting instruction; executing the voice reminding instruction, and generating and sending a repair report signal according to the repair report instruction.
By acquiring the latest stored filter screen cleanliness, a reminding instruction and a repair instruction are generated according to the dirty blocking condition, namely, reminding and repair are carried out when the dirty blocking occurs, and a repair signal is sent to a maintenance center so as to remind the maintenance center of the dirty blocking.
In some embodiments of the present invention, the executing the voice alert instruction includes: and acquiring the 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 be periodically effected when the relevant user is in the environment, so that the voice reminding instruction is required to be executed by acquiring the identification information and comparing the identification information with preset identification information if the identification information accords with the preset identification information, the identification information can be set to be the voice or the image of the user, and the voice reminding instruction is executed when the voice or the image of the user is identified.
In some embodiments of the invention, after the obtaining the filter screen cleanliness, the detecting method further comprises: when the cleanliness of the filter screen is greater than or equal to the first level of dirt blockage, a mobile terminal reminding signal is generated and sent.
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 acquire the dirty and blocked situation by checking the reminding signal, meanwhile, after receiving the repair signal, the repair center can send a reservation message to the mobile phone of the corresponding user, and the user can reply to the reservation of the repair center through the mobile phone to conduct the appointment, so that the repair is organized.
Example 3
Based on the same 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 to realize the detection method.
Example 4
Based on the same thought, the invention also provides air treatment equipment which comprises the filter screen cleanliness monitoring device and the filter screen cleanliness detection system.
It should be noted that in this document, relational terms such as "first" and "second" and the like are 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 a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP devices, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, 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 that perform 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 solution. 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 manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in 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 solution of the embodiments of the present invention may be embodied in essence or a part contributing to the prior art or a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.
It should 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (18)
1. The utility model provides a filter screen cleanliness detection device, is applied to air treatment equipment, air flue of air treatment equipment runs through the filter screen, characterized in that, detection device includes with wind flue (12) intercommunication and parallelly connected in the detection wind flue of wind flue; a first temperature sensor (13), a heating element (14) and a second temperature sensor (15) are sequentially arranged in the detection air duct according to the air flow direction; the air treatment device is characterized in that a detection carrier (3) is arranged on the inner side of 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, the air inlet channel (1), the channel in the detection pipe and the air outlet channel (2) form a detection air channel, and the detection pipe comprises an air inlet section (8), a detection section (9) and an air outlet section (10) which are connected in sequence; the first temperature sensor (13), the heating element (14) and the second temperature sensor (15) are sequentially arranged in the detection tube; 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 channel (12).
2. The filter screen cleanliness detection device according to claim 1, wherein a sealing element (11) is arranged between an air inlet of the detection tube and the air inlet channel (1), and a sealing element (11) is arranged between an air outlet of the detection tube and the air outlet channel (2).
3. The filter screen cleanliness detection device according to claim 1, wherein the detection tube is U-shaped, 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) is 90-180 degrees;
the first temperature sensor (13), the heating element (14) and the second temperature sensor (15) are sequentially arranged in the detection section (9).
4. The filter screen cleanliness detection device according to claim 1, wherein the cross sections of the air inlet channel (1), the air outlet channel (2) and the channels in the detection tube are all circular.
5. A screen cleanliness detection apparatus according to claim 1, further comprising a dust detector (6) and dust collector (7) provided in the air intake duct (1).
6. The filter screen cleanliness detection device according to claim 5, 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.
7. A method for detecting cleanliness of a filter screen, applied to a device for detecting cleanliness of a filter screen according to any one of claims 1 to 6, comprising the steps of:
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.
8. The detection method according to claim 7, wherein before the first temperature sensed by the first temperature sensor (13) and the second temperature sensed by the second temperature sensor (15) are acquired, the detection method further comprises: and sending a heating instruction.
9. The detection method according to claim 7, wherein before the first temperature sensed by the first temperature sensor (13) and the second temperature sensed by the second temperature sensor (15) are acquired, the detection method further comprises:
acquiring an on-off storage state;
if the on-off storage state is the power-on state, no action is performed, and if the on-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 on-off power storage state into a power-on state.
10. The method according to claim 9, wherein after the calibration complete signal is sent and the on-off power storage state is changed to the power-on state, the method further comprises: and acquiring an on-off electric signal, changing the on-off storage state into an off state and deleting the record information of the preset difference value until the off signal is acquired.
11. The method of claim 7, wherein comparing the real-time difference with a predetermined difference and determining the cleanliness of the filter screen based on the comparison result comprises:
acquiring gear information and selecting a preset difference value corresponding to the gear according to the gear information;
and when the real-time difference value is smaller than the preset difference value, determining that the cleanliness of the filter screen is dirty.
12. The method according to claim 11, wherein determining that the filter screen cleanliness is dirty when the real-time difference is smaller than the preset difference comprises:
when the real-time difference value is smaller than the preset difference value by 1 ℃, determining that the cleanliness of the filter screen is a dirty first level, and when the difference value between the real-time difference value and the preset difference value is increased by 1 ℃, increasing the cleanliness of the filter screen by one level.
13. The method of detecting according to claim 7, characterized in that the method of detecting further comprises:
acquiring dust detection result information;
when the detection result information is that dust exists, a dust removal signal is sent;
and sending a dust removal stopping signal when the detection result information is ash-free.
14. The method of detecting according to claim 9, wherein after said storing said screen cleanliness, said method of detecting further comprises:
acquiring the cleanliness of the filter screen;
when the cleanliness of the filter screen is greater than or equal to the first grade of dirt blockage, generating a voice reminding instruction and a repair reporting instruction;
executing the voice reminding instruction, and generating and sending a repair report signal according to the repair report instruction.
15. The method of claim 9, wherein executing the voice alert instruction comprises:
and acquiring the identification information, and executing the voice reminding instruction when the identification information which is the same as the preset identification information is acquired.
16. The method of detecting according to claim 9, wherein after the obtaining the screen cleanliness, the method of detecting further comprises:
when the cleanliness of the filter screen is greater than or equal to the first level of dirt blockage, a mobile terminal reminding signal is generated and sent.
17. A filter screen cleanliness detection system, which is characterized by comprising a processor and a memory; the processor is configured to execute a detection program stored in the memory to implement the detection method of any one of claims 7-16.
18. An air treatment device comprising the screen cleanliness monitoring device of any one of claims 1-6 and the screen cleanliness detection system of claim 17.
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| CN114353264B (en) * | 2021-12-29 | 2023-09-22 | 深圳市晨北科技有限公司 | Filter screen service life monitoring method, device, equipment and storage medium |
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