CN103994559A - Air conditioner capable of being detected automatically and prompting user to clean filter screen and prompt method thereof - Google Patents
Air conditioner capable of being detected automatically and prompting user to clean filter screen and prompt method thereof Download PDFInfo
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- CN103994559A CN103994559A CN201410208954.1A CN201410208954A CN103994559A CN 103994559 A CN103994559 A CN 103994559A CN 201410208954 A CN201410208954 A CN 201410208954A CN 103994559 A CN103994559 A CN 103994559A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 106
- 238000001514 detection method Methods 0.000 claims abstract description 49
- 238000004140 cleaning Methods 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 2
- 230000006698 induction Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000005250 beta ray Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The invention discloses an air conditioner capable of being detected automatically and prompting a user to clean a filter screen and a prompt method thereof. The air conditioner comprises a dust detection module, a main control module and a display module. When the air conditioner operates normally, the dust detection module detects concentrations of dust in the environment where the air conditioner is used and sends dust concentration values to the main control module; the main control module records operation durations under different dust concentrations according to the received values of the concentrations, detected by the dust detection module, of dust in the environment where the air conditioner is used, and the accumulated operation duration is calculated through conversion; when the accumulated operation duration of the air conditioner under the environments with different dust concentrations reaches to a threshold value, the display module prompts the user that the filter screen needs to be cleaned, so the dust accumulation condition of the filter screen can be displayed in time, the user can clean the filter screen in time through display of the air conditioner, and it is guaranteed that the air conditioner operates under the optimal state. Through the prompt method, the dust accumulation degree of dust on the filter screen under the operation environment of the air conditioner can be embodied more obviously.
Description
Technical field
The present invention relates to air regulator field, relate to a kind of air-conditioner and reminding method thereof that there is automatic detection and point out user's cleaning and filtering net function.
Background technology
Filter screen of air conditioner is that filtered air is to stop the impurity such as dust to enter the device of heat exchanger.But air-conditioner used after a period of time, the impurity such as dust can be covered with on screen pack, reduce the intake of indoor set, and then affect refrigeration or the heating effect of air-conditioner.
At present, the air-conditioner of selling on market does not have the stifled function of reminding of filter screen dirtying, and is with printed words such as " needing user's periodic cleaning screen pack " on its product description.Because air conditioner room unit hangs on wall, or stand in indoorly, user cannot know the dirty stifled situation of screen pack exactly, and then cannot in time remove cleaning and filtering net.
In prior art, have the technical scheme that much filter screen dirtying about air-conditioner is pointed out open:
Though the Chinese invention patent application that publication number is CN1727791 discloses a kind of air-conditioner with filter screen dirtying prompting function, this technical scheme only can reflect the local dirty stifled situation such as a point or several points on screen pack, cannot make reflection comprehensively and accurately to the stifled situation of whole filter screen dirtying, can not, by detecting the dust concentration of environment for use, judge the laying dust degree of screen pack.
Notification number is that the Chinese utility model patent of CN2580340 also discloses a kind of air-conditioning with the stifled prompting function of filter screen dirtying, and it is notified with timing type method (being timed reminding mode).This timing mode is the record to the fan running time by single-chip microcomputer, in the time that the fan running time reaches threshold value, i.e. and reminding user cleaning and filtering net.Because of user's environment for use difference, the dirty stifled speed of screen pack is not quite similar, and therefore can not reflect accurately the dirty stifled situation of screen pack.
Notification number is that the Chinese utility model patent of CN201000370 discloses a kind of air-conditioning internal machine screen pack obstruction alarm device that adopts temperature sensor to report to the police; in the time that CPU collects pipe temperature sensor temperature≤design temperature, environmentally sensitive actuator temperature >=25 °; CPU protects system; to User Alarms, reminding user cleans net.This technical scheme is the chocking-up degree that judges screen pack by the mode of detected temperatures.
Summary of the invention
The embodiment of the present invention provides a kind of air-conditioner that has automatic detection and point out user's cleaning and filtering net function, comprises dust detection module, main control module, power module, display module;
Described dust detection module is for detection of the dust concentration in described air-conditioner environment for use, and dust concentration value is sent to described main control module;
Described main control module is for detecting described air-conditioner environment for use different dusts concentration value according to the described dust detection module receiving, record the operation duration under different dusts concentration, and convert out accumulative total and move duration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, send control signal to described display module, make described display module prompting user need to clear up screen pack;
Described display module, for according to the described control signal receiving, points out user need to clear up screen pack;
Described power module is used for giving described dust detection module, described display module, other element power supplies of described main control module and described air-conditioner.
In air-conditioner of the present invention, described main control module is provided with storage element, timing unit, computing unit, relatively performance element;
Described storage element is for storing the information of described air-conditioner;
Described timing unit is for recording the operation duration of described air-conditioner under different dusts concentration;
Described computing unit moves duration for the operation duration under different dusts concentration being converted out to accumulative total;
Described relatively performance element is for moving duration and setting threshold comparison by described air-conditioner in the environment accumulative total of different dusts concentration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, send control signal to described display module, make described display module prompting user need to clear up screen pack.
In air-conditioner of the present invention, described main control module is also provided with stage unit;
Described stage unit carries out classification for the different dusts concentration that described dust detection module is detected.
In air-conditioner of the present invention, the different dusts concentration that described stage unit detects described dust detection module is divided into A level, B level, C level, D level level Four;
D level is that in environment, dust quantity is greater than 1050mg/m
3;
C level is that in environment, dust quantity is less than 1050mg/m
3and be greater than 300mg/m
3;
B level is that in environment, dust quantity is less than 300mg/m
3, and be greater than 150mg/m
3;
A level is that in environment, dust quantity is less than 150mg/m
3.
In air-conditioner of the present invention, described air-conditioner also comprises reseting module;
Described reseting module is used for display module to reset, and makes described main control module again totally move duration.
In air-conditioner of the present invention, described display module is LED lamp, or LCDs.
In air-conditioner of the present invention, described power module is provided with over-current protecting unit;
Described over-current protecting unit is for the protection of described air-conditioner electric elements inside.
In air-conditioner of the present invention, described air-conditioner also comprises switch module;
Described switch module is for controlling the opening and closing of described main control module.
In air-conditioner of the present invention, described air-conditioner also comprises presetting module;
Described presetting module arranges described threshold value for user according to the running environment of described air-conditioner.
The present invention also provides a kind of reminding method of the user's of prompting cleaning and filtering net, is applied to the air-conditioner described in claim 1 to 9, and described method comprises:
S101: dust detection module detects the dust concentration in air-conditioner environment for use, and dust concentration value is sent to main control module;
S102: main control module detects different dusts concentration value in air-conditioner environment for use according to the dust detection module receiving, and records the operation duration under different dusts concentration, and convert out accumulative total and move duration;
S103: when air-conditioner is when accumulative total is moved duration and reached threshold value in the environment of different dusts concentration, send control signal to display module;
S104: display module prompting user need to clear up screen pack.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
In the present invention, air-conditioner comprises: dust detection module, main control module, display module; Described dust detection module is for detection of the dust concentration in described air-conditioner environment for use, and dust concentration value is sent to described main control module; Described main control module is for detecting described air-conditioner environment for use different dusts concentration value according to the described dust detection module receiving, record the operation duration under different dusts concentration, and convert out accumulative total and move duration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, send control signal to described display module, make described display module prompting user need to clear up screen pack; Described display module, for according to the described control signal receiving, points out user need to clear up screen pack.Hence one can see that, and in the time that air-conditioner normally moves, dust detection module detects the dust concentration in described air-conditioner environment for use, and dust concentration value is sent to described main control module, described main control module detects different dusts concentration value in described air-conditioner environment for use according to the described dust detection module receiving, record the operation duration under different dusts concentration, and convert out accumulative total and move duration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, described display module prompting user need to clear up screen pack, can in time screen pack laying dust situation be shown like this, user shows that by air-conditioner cleaning and filtering net ensures that air-conditioner operates in optimum state in time, this prompting mode can embody the laying dust degree of dust on screen pack in air-conditioner running environment more.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is an embodiment schematic diagram of air-conditioner;
Fig. 2 is another embodiment schematic diagram of air-conditioner;
Fig. 3 is an embodiment flow chart of the reminding method of prompting user cleaning and filtering net;
Fig. 4 is another embodiment flow chart of the reminding method of prompting user cleaning and filtering net.
Detailed description of the invention
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiment, but not whole embodiment.Based on the embodiment in this patent, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of this patent protection.
The invention provides a kind of air-conditioner that there is automatic detection and point out user's cleaning and filtering net function, refer to shown in Fig. 1, comprising: dust detection module 11, main control module 12, power module 14, display module 13; Described dust detection module 11 is for detection of the dust concentration in described air-conditioner environment for use, and dust concentration value is sent to described main control module 12; Described main control module 12 is for detecting described air-conditioner environment for use different dusts concentration value according to the described dust detection module 11 receiving, record the operation duration under different dusts concentration, and convert out accumulative total and move duration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, send control signal to described display module 13, make described display module 13 point out user need to clear up screen pack; Described display module 13, for according to the described control signal receiving, points out user need to clear up screen pack; Described power module 14 is for giving described dust detection module 11, described display module 13, other elements power supplies of described main control module 12 and described air-conditioner.
In the present invention, in the time that air-conditioner normally moves, dust detection module 11 detects the dust concentration in described air-conditioner environment for use, and dust concentration value is sent to described main control module 12; Described main control module 12 detects different dusts concentration value in described air-conditioner environment for use according to the described dust detection module 11 receiving, record the operation duration under different dusts concentration, and convert out accumulative total and move duration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, described display module 13 points out user need to clear up screen pack, can in time screen pack laying dust situation be shown like this, user shows that by air-conditioner cleaning and filtering net ensures that air-conditioner operates in optimum state in time.This prompting mode can embody the laying dust degree of dust on screen pack in air-conditioner running environment more.
In the present invention, dust detection module 11 can be selected dust detector.Dust detection module 11 can be selected the different dust detection modes that detect principle in different environments for use according to air-conditioner.Concrete, dust detects principle and can be light absorption, light scattering, β ray, micro computer laser and exchange electrostatic induction etc., specifically adopts dust detection mode not limit here.
In the present invention, described power module 14 is for giving described dust detection module 11, described display module 13, other elements power supplies of described main control module 12 and described air-conditioner.Wherein power module 14 is provided with over-current protecting unit; Described over-current protecting unit is for the protection of described air-conditioner electric elements inside.That is to say when short circuit or electric current appear in air-conditioner inside and cross conference while causing situation that some burns out, described over-current protecting unit can auto power off.Described over-current protecting unit can be taked fuse, or breaker, or earth leakage circuit-breaker etc. concrete form does not limit here.
In the present invention, display module 13 can adopt liquid crystal display, or LED lamp etc., and the preferred liquid crystal display of the present invention or LED screen display show, show state is more directly perceived like this, can or should be letter by Display of Chinese characters, or shows the state that air-conditioner is current with function code.In order to allow user more fully understand the state of air-conditioner self.Can also show air conditioner fault state, operational factor of air-conditioner etc., concrete condition does not limit here.
For the present invention can be described more fully, enumerate specific embodiment below embodiments of the present invention are described, but specific embodiment not made any restriction to the present invention.
In the present embodiment, described main control module is provided with storage element, timing unit, computing unit, relatively performance element.Described storage element is for storing the information of described air-conditioner; Described timing unit is for recording the operation duration of described air-conditioner under different dusts concentration; Described computing unit moves duration for the operation duration under different dusts concentration being converted out to accumulative total; Described relatively performance element is for moving duration and setting threshold comparison by described air-conditioner in the environment accumulative total of different dusts concentration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, send control signal to described display module, make described display module prompting user need to clear up screen pack.
In the present embodiment, described main control module is also provided with stage unit; Described stage unit carries out classification for the different dusts concentration that described dust detection module is detected.The different dusts concentration that dust detection module can be detected is like this divided into different stage.After dividing different dusts rank, be convenient to the running time of different dusts concentration, unify conversion, be accumulated into a total time.Again according to judging whether to need cleaning and filtering net total time.
In the present embodiment, the different dusts concentration that described stage unit detects described dust detection module is divided into A level, B level, C level, D level level Four;
Wherein, D level is that in environment, dust quantity is greater than 1050mg/m
3;
C level is that in environment, dust quantity is less than 1050mg/m
3and be greater than 300mg/m
3;
B level is that in environment, dust quantity is less than 300mg/m
3, and be greater than 150mg/m
3;
A level is that in environment, dust quantity is less than 150mg/m
3.
In the present embodiment, also can adopt other hierarchical approaches, as different dusts concentration being divided into Pyatyi or six grades etc., specifically not limit here.In each rank environment, dust quantity also can indicate criterion settings according to some, also can be according to regional ambient conditions setting, and in concrete each rank environment, the scope of dust quantity does not limit here.
In the present embodiment, refer to shown in Fig. 2, described air-conditioner also comprises reseting module 15; Described reseting module 15 is for display module 13 is resetted, and makes described main control module 12 again totally move duration.When described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, main control module 12 sends control signal to described display module 13, makes described display module 13 point out user need to clear up screen pack.User clears up after screen pack, press reseting module 15 and make display module 13 cancel prompting, and by the described air-conditioner of record in main control module 12 the operation duration under different dusts concentration and convert out the whole zero clearings of operation duration of accumulative total, restart computing time.
In the present embodiment, can induction pieces be set in screen pack installation position, in the time that user pulls down screen pack cleaning, make induction pieces trigger and to main control module 12 transmitted signals, main control module 12 automatically resets according to pulse signal, make display module 13 cancel prompting, and by the described air-conditioner of record in main control module 12 the operation duration under different dusts concentration and convert out the whole zero clearings of operation duration of accumulative total, restart computing time.
In the present embodiment, described air-conditioner also comprises switch module 16; Described switch module 16 is for controlling the opening and closing of described main control module 12.The effect of switch module 16 is to control the opening and closing that air-conditioner detected and pointed out user's cleaning and filtering net function automatically.Switch module 16 can be arranged on the remote controller of air-conditioner, also can be arranged on the operating desk of air-conditioner.Mainly for user's operation, be convenient to opening and closing and automatically detect prompt facility.
In the present embodiment, described air-conditioner also comprises presetting module 17; Described presetting module 17 arranges described threshold value for user according to the running environment of described air-conditioner.
In the present embodiment, when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, main control module 12 sends control signal to described display module 13, makes described display module prompting user need to clear up screen pack.Described threshold value can arrange in the time dispatching from the factory, and also can user arrange according to actual needs.In the time that user need to arrange threshold value, can change threshold parameter by operation presetting module 17.Change the size impact of threshold parameter, the length of cleaning and filtering net time period.If it is large that threshold value setting becomes, the time period of screen pack clean prompting is elongated, and anti regular is to shorten the time period.
The reminding method that a kind of user's of prompting cleaning and filtering net is also provided in the present invention, described method comprises: refer to shown in Fig. 3:
S101: dust detection module detects the dust concentration in air-conditioner environment for use, and dust concentration value is sent to main control module;
S102: main control module detects different dusts concentration value in air-conditioner environment for use according to the dust detection module receiving, and records the operation duration under different dusts concentration, and convert out accumulative total and move duration;
S103: when air-conditioner is when accumulative total is moved duration and reached threshold value in the environment of different dusts concentration, send control signal to display module;
S104: display module prompting user need to clear up screen pack.
For method of the present invention can be described more fully, be explained in the mode of embodiment below, concrete parameter and mode do not limit here.Refer to shown in Fig. 4:
First,, in the time that air-conditioner normally moves, dust detection module detects the dust concentration in air-conditioner environment for use.Air-conditioner has been set as dust concentration four grades before dispatching from the factory, and is respectively A level, B level, C level, D level.Wherein, D level is for being greater than 1050mg/m
3, C level is for being less than 1050mg/m
3and be greater than 300mg/m
3, B level is for being less than 300mg/m
3, and be greater than 150mg/m
3, A level is for being less than 150mg/m
3.Timing unit can record under different dusts concentration and move duration, and computing unit can convert the operation duration of different brackets and gather a total duration, and is stored in storage element.Here can be benchmark by D level, C=0.8 × D, B=0.6 × D, A=0.3 × D, so different air quality level accumulative total duration is revised to D level air quality level according to corresponding proportion, always adds up duration T=D level operation duration+C level operation duration × 0.8+B level operation duration × 0.6+A level operation duration × 0.3.Air-conditioner can be set the threshold value of an operation duration before dispatching from the factory, and in the time that total accumulative total duration T is greater than threshold value, judges that air-conditioner evaporator need to clean.
Be understandable that, when in the environment of air-conditioner operation, dust concentration is greater than 1050mg/m
3, be D level, timing unit records the operation duration that current operation duration is D level dust concentration, and main control module can directly deposit the operation duration of D level dust concentration in storage element.When in the environment of air-conditioner operation, dust concentration is 200mg/m
3time, timing unit records the operation duration that current operation duration is B level dust concentration, and computing unit is converted to B level dust concentration after the duration of D level dust concentration, stores storage element into.When in the environment of air-conditioner operation, dust concentration is 500mg/m
3time, timing unit records the operation duration that current operation duration is C level dust concentration; Equally C level dust concentration is converted to after the duration of D level dust concentration, stores storage element into, and so forth circulation.If described air-conditioner accumulative total in the environment of different dusts concentration is moved duration and setting threshold comparison by described relatively performance element at this moment, when described air-conditioner is when accumulative total is moved duration and reached threshold value in the environment of different dusts concentration, judge that filter screen of air conditioner need to clean.The threshold value is here 720 hours, namely, in the time that total accumulative total duration T is greater than 720 hours, sends control signal to described display module, makes described display module prompting user need to clear up screen pack.
In the method for the present embodiment, be also included in after user's cleaning and filtering net, press reseting module, can recover display module, cancel prompting and the time of storing in the storage element in main control module is removed, make main control module reclocking.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an air-conditioner, is characterized in that, comprising:
Dust detection module, main control module, power module, display module;
Described dust detection module is for detection of the dust concentration in described air-conditioner environment for use, and dust concentration value is sent to described main control module;
Described main control module is for detecting described air-conditioner environment for use different dusts concentration value according to the described dust detection module receiving, record the operation duration under different dusts concentration, and convert out accumulative total and move duration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, send control signal to described display module, make described display module prompting user need to clear up screen pack;
Described display module, for according to the described control signal receiving, points out user need to clear up screen pack;
Described power module is used for giving described dust detection module, described display module, other element power supplies of described main control module and described air-conditioner.
2. air-conditioner according to claim 1, is characterized in that,
Described main control module is provided with storage element, timing unit, computing unit, relatively performance element;
Described storage element is for storing the information of described air-conditioner;
Described timing unit is for recording the operation duration of described air-conditioner under different dusts concentration;
Described computing unit moves duration for the operation duration under different dusts concentration being converted out to accumulative total;
Described relatively performance element is for moving duration and setting threshold comparison by described air-conditioner in the environment accumulative total of different dusts concentration, and when described air-conditioner is when in the environment of different dusts concentration, accumulative total is moved duration and reached threshold value, send control signal to described display module, make described display module prompting user need to clear up screen pack.
3. air-conditioner according to claim 2, is characterized in that,
Described main control module is also provided with stage unit;
Described stage unit carries out classification for the different dusts concentration that described dust detection module is detected.
4. air-conditioner according to claim 3, is characterized in that,
The different dusts concentration that described stage unit detects described dust detection module is divided into A level, B level, C level, D level level Four;
D level is that in environment, dust quantity is greater than 1050mg/m
3;
C level is that in environment, dust quantity is less than 1050mg/m
3and be greater than 300mg/m
3;
B level is that in environment, dust quantity is less than 300mg/m
3, and be greater than 150mg/m
3;
A level is that in environment, dust quantity is less than 150mg/m
3.
5. air-conditioner according to claim 4, is characterized in that,
Described air-conditioner also comprises reseting module;
Described reseting module is used for display module to reset, and makes described main control module again totally move duration.
6. air-conditioner according to claim 1, is characterized in that,
Described display module is LED lamp, or LCDs.
7. air-conditioner according to claim 1, is characterized in that,
Described power module is provided with over-current protecting unit;
Described over-current protecting unit is for the protection of described air-conditioner electric elements inside.
8. air-conditioner according to claim 1, is characterized in that,
Described air-conditioner also comprises switch module;
Described switch module is for controlling the opening and closing of described main control module.
9. air-conditioner according to claim 1, is characterized in that,
Described air-conditioner also comprises presetting module;
Described presetting module arranges described threshold value for user according to the running environment of described air-conditioner.
10. a reminding method of pointing out user's cleaning and filtering net, is characterized in that, is applied to air-conditioner claimed in claim 1, and described method comprises:
S101: dust detection module detects the dust concentration in air-conditioner environment for use, and dust concentration value is sent to main control module;
S102: main control module detects different dusts concentration value in air-conditioner environment for use according to the dust detection module receiving, and records the operation duration under different dusts concentration, and convert out accumulative total and move duration;
S103: when air-conditioner is when accumulative total is moved duration and reached threshold value in the environment of different dusts concentration, send control signal to display module;
S104: display module prompting user need to clear up screen pack.
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| CN201410208954.1A CN103994559B (en) | 2014-05-16 | 2014-05-16 | Air conditioner capable of being detected automatically and prompting user to clean filter screen and prompt method thereof |
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| CN104374046A (en) * | 2014-10-27 | 2015-02-25 | 广东美的制冷设备有限公司 | Cleaning reminding method and system of filter screen of air conditioner |
| CN104633848A (en) * | 2014-12-31 | 2015-05-20 | 小米科技有限责任公司 | Remaining using time length determining method and device |
| CN104819545A (en) * | 2015-05-06 | 2015-08-05 | 深圳市朗空亿科科技有限公司 | Air purifier and replacement reminding method and device for filter screen of air purifier |
| CN105066288A (en) * | 2015-07-14 | 2015-11-18 | 中山市完美生活器材科技有限公司 | Method for measuring matter in air and device thereof |
| CN105352117A (en) * | 2015-10-28 | 2016-02-24 | 北京艾浦乐科技有限公司 | Air purifier and filter screen replacement prompting method thereof |
| CN105674476A (en) * | 2015-12-18 | 2016-06-15 | 宁波奥克斯空调有限公司 | Cleanliness reminding method for air conditioner |
| US20160187367A1 (en) * | 2014-12-31 | 2016-06-30 | Xiaomi Inc. | Method for Determining Remaining Service Time and Apparatus Thereof |
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