CN111609517B - Air conditioner filter screen dust accumulation detection method and device and air conditioner - Google Patents
Air conditioner filter screen dust accumulation detection method and device and air conditioner Download PDFInfo
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- CN111609517B CN111609517B CN202010426222.5A CN202010426222A CN111609517B CN 111609517 B CN111609517 B CN 111609517B CN 202010426222 A CN202010426222 A CN 202010426222A CN 111609517 B CN111609517 B CN 111609517B
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
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- 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
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- F24F11/64—Electronic processing using pre-stored data
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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
- F24F2110/00—Control inputs relating to air properties
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Abstract
The invention discloses an air conditioner filter screen dust accumulation detection method and device and an air conditioner. Wherein, the method comprises the following steps: in the process of starting and running of the air conditioner, when a detection time is reached, the current environment temperature of a target area and current airflow flowing data of airflow output by an air outlet of the air conditioner in the target area are obtained; and determining the dust deposition degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data. The invention can automatically, reasonably and accurately judge the dust accumulation degree of the air conditioner air outlet filter screen, further can more efficiently and accurately judge the time for dust removal based on the dust accumulation degree, reminds a user to clean the filter screen, has high applicability and solves the problems of inaccurate and poor applicability of the prior art in a mode of regularly reminding to clean the filter screen.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for detecting dust deposition of an air conditioner filter screen and an air conditioner.
Background
The air conditioning indoor unit is generally provided with a filter screen, for example, at the return air inlet. After the air conditioner is used for a long time, the filter screen can accumulate dust and even breed bacteria, the refrigeration and heating effects of the air conditioner are influenced, and the health of a user is influenced. Therefore, the filter screen needs to be cleaned frequently.
The current common mode is to regularly remind the user to clean the filter screen, but the installation environment is different, and the speed of the filter screen laying dust is different, and the method of regularly reminding to clean the filter screen can not adapt to different installation environments.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting dust deposition on a filter screen of an air conditioner and the air conditioner, and aims to solve the problems that in the prior art, the mode of regularly reminding to clean the filter screen is not accurate enough and the applicability is poor.
In order to solve the technical problem, an embodiment of the present invention provides a method for detecting dust deposition on an air conditioner filter screen, including:
in the process of starting and running of the air conditioner, when a detection time is reached, the current environment temperature of a target area and current airflow flowing data of airflow output by an air outlet of the air conditioner in the target area are obtained;
and determining the dust deposition degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data.
Optionally, obtaining current airflow flow data of the airflow output by the air outlet of the air conditioner in the target area includes:
detecting temperature field data within a preset range of the air outlet of the air conditioner;
and determining the current airflow flowing data according to the temperature of each position point in the temperature field data.
Optionally, determining the current airflow flow data according to the temperature of each location point in the temperature field data includes:
determining the actual air outlet temperature of the air outlet of the air conditioner according to the set temperature;
respectively calculating the difference value between the temperature of each position point in the temperature field data and the actual air outlet temperature;
determining at least two position points corresponding to the difference value within the preset temperature range;
and taking the direction which is formed by the at least two position points and takes the air-conditioning outlet as a starting point as the current airflow direction, and taking the farthest distance diffused along the current airflow direction as the current airflow flowing distance.
Optionally, determining the dust deposition degree of the air conditioner filter screen according to the current ambient temperature and the current airflow flowing data includes:
determining reference airflow flowing data corresponding to the current environment temperature in prestored reference data;
calculating an error between the current airflow flow data and the reference airflow flow data;
and determining the dust accumulation degree corresponding to the calculated error according to the corresponding relation between the preset error and the dust accumulation degree.
Optionally, before determining the dust deposition degree of the air conditioner filter screen according to the current ambient temperature and the current airflow flowing data, the method further includes:
judging whether the accumulated running time of the air conditioner reaches a preset time or not;
if yes, determining the dust accumulation degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data;
and if not, storing the current environment temperature and the corresponding current airflow flowing data as reference data.
Optionally, obtaining the current ambient temperature of the target area and the current airflow data of the airflow output by the air outlet of the air conditioner in the target area includes:
detecting the current environment temperature and the current airflow flowing data for preset times;
determining the dust deposition degree of an air conditioner filter screen according to the current environment temperature and the current airflow flowing data, and the method comprises the following steps:
respectively calculating errors between current airflow flowing data and corresponding reference airflow flowing data in the detection results aiming at each detection result;
calculating the average value of the errors corresponding to all the detection results as a final error;
and determining the dust accumulation degree according to the final error.
Optionally, obtaining the current ambient temperature of the target area and the current airflow data of the airflow output by the air outlet of the air conditioner in the target area includes:
detecting the current environment temperature and the current airflow flowing data for preset times;
and calculating a first average value of the current ambient temperature in all the detection results and a second average value of the current airflow flowing data in all the detection results so as to determine the dust deposition degree according to the first average value and the second average value.
Optionally, the detection time is as follows: and stopping the air conditioner and restarting the compressor when the ambient temperature of the target area reaches the set temperature for the first time after the air conditioner is started.
Optionally, after determining the dust deposition degree of the air conditioner filter screen according to the current ambient temperature and the current airflow flowing data, the method further includes:
and outputting reminding information according to the dust accumulation degree.
The embodiment of the invention also provides a device for detecting dust deposition on the filter screen of the air conditioner, which comprises:
the system comprises an acquisition module, a detection module and a control module, wherein the acquisition module is used for acquiring the current ambient temperature of a target area and the current airflow flowing data of airflow output by an air outlet of the air conditioner in the target area when a detection time arrives in the process of starting and running of the air conditioner;
and the determining module is used for determining the dust deposition degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data.
An embodiment of the present invention further provides an air conditioner, including: the embodiment of the invention provides an air conditioner filter screen dust accumulation detection device.
The embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and when the program is executed by a processor, the method for detecting the dust deposition on the filter screen of the air conditioner is realized.
By applying the technical scheme of the invention, the current environment temperature of the target area and the current airflow flow data of the airflow output by the air conditioner air outlet in the target area are obtained according to the detection time, the dust deposition degree of the air conditioner filter screen is determined according to the current environment temperature and the current airflow flow data, the dust deposition degree of the air conditioner air outlet filter screen can be automatically, reasonably and accurately judged, the dust removal time can be more efficiently and accurately judged based on the dust deposition degree, a user is reminded to clean the filter screen, the accuracy is not influenced by the installation environment, the applicability is strong, and the problems that the mode of regularly reminding to clean the filter screen in the prior art is not accurate enough and the applicability is poor are solved.
Drawings
Fig. 1 is a flowchart of a method for detecting dust deposition on a filter screen of an air conditioner according to an embodiment of the present invention;
FIGS. 2A-2C are schematic diagrams illustrating the diffusion trend of the airflow based on the temperature field data according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a method for detecting dust deposition on a filter according to an embodiment of the present invention;
fig. 4 is a block diagram of a dust deposition detection device of an air conditioner filter screen according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment provides an air conditioner filter screen dust accumulation detection method which can be used for judging the dust accumulation degree of an air conditioner filter screen and used as a basis for reminding a user to clean the air conditioner filter screen. It should be noted that the scheme for detecting dust deposition on the filter screen of the air conditioner is suitable for various air conditioners, such as split air conditioners, multi-split air conditioners, air duct machines and the like.
Fig. 1 is a flowchart of a method for detecting dust deposition on an air conditioner filter screen according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
s101, in the process of starting up and running of the air conditioner, when a detection time is reached, the current environment temperature of a target area and current airflow flowing data of airflow output by an air outlet of the air conditioner in the target area are obtained.
The target area refers to an area where an air outlet of the air conditioner is located, such as a certain room. The airflow flow data includes: airflow direction and airflow distance. The airflow direction (also referred to as airflow direction) refers to a direct flow direction of the airflow output by the air outlet, and the airflow flow distance refers to a maximum distance to which the airflow output by the air outlet is diffused in the airflow direction. The gas flow data may specifically be determined from the temperature data. The detection timing can be set according to actual requirements, for example, detection is performed according to a preset period, detection is performed at any time in the running process of the compressor, detection is performed once every time starting is performed, or detection is performed once every several times starting is performed, and the like. The air flow data detected at the same time has a corresponding relationship with the ambient temperature.
And S102, determining the dust deposition degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data.
When the air conditioner operates in a cooling (or heating) mode, the temperature of air flow output by the air outlet is lower (or higher) than that of ambient air, and the temperature of the air flow gradually approaches to the ambient temperature along with the fact that the air flow is far away from the air outlet, so that the air flow direction and the air flow distance of the air outlet can be accurately detected through the temperature. After the filter screen deposition, return air efficiency reduces, and the air-out speed also can reduce, and the air-out is not smooth, and the air current flow distance and the air current direction of air outlet output air current all change, consequently through detecting out air current direction and the air current flow distance of air outlet output air current, can judge the deposition degree of return air inlet filter screen.
According to the method for detecting the dust deposition on the air conditioner filter screen, the current environment temperature of a target area and the current airflow flowing data of the air conditioner air outlet output airflow in the target area are obtained according to detection time, the dust deposition degree of the air conditioner filter screen is determined according to the current environment temperature and the current airflow flowing data, the dust deposition degree of the air conditioner air outlet filter screen can be automatically, reasonably and accurately judged, the time for dust removal can be more efficiently and accurately judged based on the dust deposition degree, a user is reminded to clean the filter screen, the accuracy is not affected by the installation environment, the applicability is strong, and the problems that the mode for regularly reminding to clean the filter screen is not accurate enough and the applicability is poor in the prior art are solved.
If at least two air outlets are arranged in the same area, current airflow flowing data of airflow output by each air outlet is obtained for each air outlet, the dust deposition degree of the air conditioner filter screen is determined according to the current environment temperature of the area and the current airflow flowing data of the air outlet, that is, the dust deposition judgment result of the filter screen is obtained for each air outlet, and then the highest value of the dust deposition degree in the dust deposition judgment results of all the air outlets can be used as the final dust deposition degree, or the average value of the dust deposition judgment results of all the air outlets is calculated to be used as the final dust deposition degree.
Considering that the flow of the air flow output from the air outlet may be affected by humidity, in a preferred implementation, the detection time may be set as: when the air conditioner is stopped and the compressor is started again for the first time when the environmental temperature of the target area reaches the set temperature after the air conditioner is started, namely the air conditioner is stopped and the compressor is started again for the first time at the temperature point after the air conditioner is started. No matter the humidity of the target area is, after the air conditioner is started to operate for a period of time, the humidity is reduced, and the influence on the air flow is small; and the dust deposition of the filter screen is a slow process and cannot change in real time, and the dust deposition degree can be determined by detecting related data after the air conditioner operates stably, so that the humidity is basically consistent, and the influence of the humidity can be ignored. In view of the above, in the process of using the air conditioner by a user, the dust deposition degree of the filter screen is judged based on the preferable detection time, the influence of humidity can be ignored, and in the detection time, the outlet air temperature is obviously changed compared with the ambient temperature, so that the airflow flowing data can be more obviously and accurately acquired.
In one embodiment, obtaining current airflow flow data for the air outlet output airflow of the air conditioner within the target area comprises: detecting temperature field data within a preset range of an air outlet of the air conditioner; and determining current airflow flow data according to the temperature of each position point in the temperature field data. Specifically, a temperature field detection device (such as a thermopile sensor) may be disposed at the air outlet to detect temperature field data within a preset range of the air outlet, where the preset range is a detection range of the temperature field detection device. The temperature field data includes a plurality of temperature data (or referred to as temperature data points), and each position point in the detection range has corresponding temperature data. Therefore, the airflow flowing data of the airflow output by the air outlet can be accurately acquired based on the temperature field data. In fact, the air flow diffusion needs time, and the temperature field detection device needs to continuously detect the temperature field data for a period of time so as to determine the air flow data.
Further, determining current airflow flow data according to the temperature of each position point in the temperature field data, including: determining the actual outlet air temperature of the air outlet of the air conditioner according to the set temperature of the target area; respectively calculating the difference value between the temperature of each position point in the temperature field data and the actual air outlet temperature; determining at least two position points corresponding to the difference value within the preset temperature range; and taking the direction which is formed by the at least two position points and takes the air-conditioning outlet as a starting point as the current airflow direction, and taking the farthest distance diffused along the current airflow direction as the current airflow flowing distance.
The actual outlet air temperature refers to the temperature of the air flow output by the air outlet, the actual outlet air temperature is lower than the set temperature in the refrigeration mode, and the actual outlet air temperature is higher than the set temperature in the heating mode. The air flow temperature of the air outlet changes along with the flowing of the air flow, but under a proper detection time, the air flow temperature can be still different from the ambient temperature, so that the air flow direction can be determined by utilizing the difference value between the temperature of the position point and the actual air outlet temperature. The preset temperature range may be predetermined and set according to experiments, for example ± 3 ℃. Specifically, if the difference between the temperature of the position point and the actual outlet air temperature is within the preset temperature range, it indicates that the position point is a position through which the air outlet outputs the air flow, and is an effective position point for determining the direction of the air flow. Therefore, the direction which is formed by the effective position points and takes the air outlet of the air conditioner as a starting point and is far away from the air outlet can be taken as the current airflow direction, and the farthest distance diffused along the current airflow direction can be taken as the current airflow flowing distance. Therefore, the airflow flowing data can be accurately determined by utilizing the temperature field data, and guarantee is provided for judging the subsequent dust deposition degree. For example, in the heating mode, if the temperature of the position point is at [ the actual outlet air temperature is-3 ℃, the actual outlet air temperature ], the position point is an effective position point; in the refrigeration mode, if the temperature of the position point is [ the actual outlet air temperature, the actual outlet air temperature +3 ℃ ], the position point is an effective position point.
The following describes a process of determining an airflow direction and an airflow flowing distance according to temperature field data by taking a heating mode as an example.
And starting the unit to operate, stopping the compressor when the temperature reaches a point and stopping the unit, and operating the indoor fan to enable the temperature of the return air inlet to be consistent, wherein the ambient temperature of the return air inlet is Tset-T1, Tset represents a set temperature, and T1 represents a preset first temperature correction value. After the heating mode is stopped at a temperature point, when the ambient temperature is detected to be lower than the set temperature and the difference value between the ambient temperature and the set temperature is smaller than T1, the compressor is started again.
And after the unit is stopped at a temperature point and then started, the temperature of the airflow output by the air outlet is Tset + T2, wherein T2 represents a preset second temperature correction value. During heating, the outlet air temperature is far greater than the set temperature, and during refrigeration, the outlet air temperature is far less than the set temperature. As time goes by, the heat source airflow output from the outlet diffuses according to the trend shown in fig. 2A to 2C, and fig. 2A to 2C show the diffusion process of the airflow output from the outlet in the case that the ambient temperature gradually approaches the set temperature from the start of the air conditioner. For example, the airflow direction and the airflow distance may be determined by the position points (i.e., effective position points) filled with oblique lines in the figure. Specifically, it is more intuitive to use color change to represent temperature change, for example, red represents the highest temperature, green represents the lowest temperature, and if the color of a certain position point gradually transits from green and yellow to red, it represents that the temperature of the position point gradually increases.
In an alternative embodiment, determining the dust deposition degree of the air conditioner filter screen according to the current ambient temperature and the current airflow flow data comprises: determining reference airflow flowing data corresponding to the current environment temperature in pre-stored reference data; calculating an error between the current airflow flow data and the reference airflow flow data; and determining the dust accumulation degree corresponding to the calculated error according to the corresponding relation between the preset error and the dust accumulation degree.
The datum data are obtained under the condition that the air conditioner filter screen is not accumulated with dust, and can be used as a reference for judging the dust accumulation degree. The reference data includes: ambient temperature and corresponding airflow flow data. The reference data can be obtained and stored in advance through testing, and can also be obtained and stored in a period of time during the initial installation and operation of the air conditioner.
Specifically, the airflow direction can be regarded as a straight line, and the starting points of different airflow directions are consistent (both are air outlets), so that the error between the airflow directions can be represented by the included angle between the straight lines, and the error between the airflow flowing distances can be represented by directly calculating the difference of the lengths of the straight lines. In practical application, the direction error and the distance error can be respectively calculated, and then the direction error and the distance error are processed to obtain a final error which is used as a basis for judging the dust deposition degree; or processing the data of two dimensions of direction and distance to obtain a reference value, and calculating the error between the reference value and the reference value in the reference data as the basis for judging the dust deposition degree. The larger the error, the higher the degree of dust deposition.
Considering that the filter screen is substantially clean during the initial operation period after the air conditioner is installed, without detecting the dust deposition degree of the filter screen, in an alternative embodiment, before determining the dust deposition degree of the air conditioner filter screen according to the current ambient temperature and the current airflow flow data, the method further includes: judging whether the accumulated running time of the air conditioner reaches a preset time or not; if so, determining the dust deposition degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data; and if not, storing the current ambient temperature and the corresponding current airflow flowing data as reference data. The preset time period may be set according to actual conditions, for example, set to 40 days. In the embodiment, the accumulated operation time of the air conditioner is monitored, and if the accumulated operation time of the air conditioner does not reach the preset time, the dust accumulation degree does not need to be determined, so that the operation is simplified.
It should be noted that, if the ambient temperatures collected at different times are the same in the preset time period, but the airflow flow data are different, the reference airflow flow data at the ambient temperature may be determined according to a preset rule, for example, the airflow flow data with the earliest time is determined as the reference airflow flow data at the ambient temperature, or an average value of the airflow flow data is calculated as the reference airflow flow data at the ambient temperature.
In order to reduce the error of a single detection and improve the accuracy of the dust deposition degree, the embodiment provides the following two ways to implement:
(1) acquiring the current ambient temperature of a target area and the current airflow flow data of the airflow output by an air outlet of an air conditioner in the target area, wherein the data comprises the following steps: detecting the current environment temperature and the current airflow flowing data for preset times; correspondingly, according to current ambient temperature and current air current flow data confirm the laying dust degree of air conditioner filter screen, include: respectively calculating errors between current airflow flowing data and corresponding reference airflow flowing data in the detection results aiming at the detection results of each time; and calculating the average value of the errors corresponding to all the detection results as a final error.
(2) Acquiring the current ambient temperature of a target area and the current airflow flow data of the airflow output by an air outlet of an air conditioner in the target area, wherein the data comprises the following steps: detecting the current environment temperature and the current airflow flowing data for preset times; and calculating a first average value of the current ambient temperature in all the detection results and a second average value of the current airflow flowing data in all the detection results so as to determine the dust deposition degree according to the first average value and the second average value.
The embodiment improves the accuracy of the dust accumulation degree through multiple detection and corresponding calculation.
In addition, after determining the dust deposition degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data, the method further comprises the following steps: and outputting reminding information according to the dust accumulation degree. The reminding information is used for reminding the user of the dust laying degree of the filter screen and/or reminding the user of cleaning the filter screen. Specifically, the reminding information can be output when the dust accumulation degree reaches a preset value; and the dust accumulation degree can be determined once, and the reminding information is timely output to display the dust accumulation degree for the user to check. Therefore, the user is reminded based on the dust accumulation degree of the filter screen, the method is accurate and reliable, the accuracy is not affected by the installation environment, and the applicability is strong.
The scheme for detecting the dust deposition on the filter screen of the air conditioner is described in detail below with reference to specific examples.
(1) And after the air conditioner is initially installed, counting the accumulated running time of the air conditioner.
(2) The filter screen is basically clean within 30 days of the accumulated operation of the air conditioner, and after the air conditioner stably operates (namely, the temperature point is stopped once after the air conditioner is started and the compressor is started again) within the first 30 days, the indoor environment temperature, the airflow direction and the airflow flowing distance of the airflow output by the air outlet are detected and recorded, and a normal model (namely, reference data) of the indoor environment temperature and the corresponding airflow direction and airflow flowing distance is established.
(3) And after the air conditioner is operated for 30 days in an accumulated mode, the dust deposition degree of the filter screen is detected. And when the compressor is started again after the compressor is started, the temperature of the indoor environment is detected, and the airflow direction and the airflow flowing distance of the airflow output by the air outlet are detected. And extracting normal model information of the database, substituting the current indoor environment temperature detected this time into the database, and calculating the error E between the current airflow flowing data detected this time and the corresponding reference airflow flowing data in the database.
(4) The dust accumulation degree of the filter screen is divided into a plurality of grades, such as I grade, II grade and III grade … … X grade, and the errors E are respectively 0-5%, 5-10% and 10-15% … … 95-100%. And the dust level may be displayed on the display terminal to alert the user.
In actual implementation, the order of some steps may be interchanged, such as determining cumulative operating time and detecting ambient temperature and airflow data. Referring to fig. 3, the method for detecting dust deposition on the filter screen of the air conditioner may include the steps of:
and S301, starting the air conditioner to operate.
S302, detecting whether the temperature point is stopped once after the startup, if so, entering the step S303, and if not, continuing the detection of the temperature point stop.
S303, detecting whether the compressor is started, if so, entering the step S304, otherwise, continuously detecting whether the compressor is started.
S304, detecting the indoor environment temperature, the airflow direction of the airflow output by the air outlet and the airflow flowing distance.
S305, judging whether the air conditioner is operated for 30 days, if so, going to step S306, otherwise, going to step S307.
And S306, comparing the reference data in the database, and judging the dust deposition degree of the filter screen.
And S307, recording the indoor environment temperature, the airflow direction of the airflow output by the air outlet and the airflow flowing distance which are detected at this time as reference data.
Example two
Based on the same inventive concept, the embodiment provides an air conditioner filter screen dust deposition detection device, which can be used for realizing the air conditioner filter screen dust deposition detection method described in the embodiment. The device may be implemented by software and/or hardware, and may be generally integrated into an air conditioner.
Fig. 4 is a block diagram of a structure of a dust deposition detection device of an air conditioner filter screen according to a second embodiment of the present invention, as shown in fig. 4, the device includes:
the acquiring module 41 is configured to acquire a current ambient temperature of a target area and current airflow flow data of an air outlet of an air conditioner in the target area when a detection time arrives during a start-up operation of the air conditioner;
and the determining module 42 is used for determining the dust deposition degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data.
Optionally, the obtaining module 41 includes:
the detection unit is used for detecting temperature field data within a preset range of the air outlet of the air conditioner;
and the first determining unit is used for determining the current airflow flowing data according to the temperature of each position point in the temperature field data.
Optionally, the first determining unit includes:
the first determining subunit is used for determining the actual air outlet temperature of the air outlet of the air conditioner according to the set temperature;
the calculating subunit is used for respectively calculating the difference between the temperature of each position point in the temperature field data and the actual outlet air temperature;
the second determining subunit is used for determining at least two position points corresponding to the difference value within the preset temperature range;
and the third determining subunit is used for taking the direction which is formed by the at least two position points and takes the air conditioner air outlet as a starting point as the current airflow direction and taking the farthest distance diffused along the current airflow direction as the current airflow flowing distance.
Optionally, the determining module 42 includes:
a second determination unit for determining reference airflow flow data corresponding to the current ambient temperature from pre-stored reference data;
the calculating unit is used for calculating the error between the current airflow flowing data and the reference airflow flowing data;
and the third determining unit is used for determining the dust deposition degree corresponding to the calculated error according to the preset corresponding relation between the error and the dust deposition degree.
Optionally, the apparatus further comprises:
the judging module is used for judging whether the accumulated running time of the air conditioner reaches a preset time;
the storage module is used for storing the current ambient temperature and the corresponding current airflow flowing data as reference data under the condition that the judgment result is negative;
the determining module 42 is further configured to determine a dust deposition degree of the air conditioner filter screen according to the current ambient temperature and the current airflow flowing data if the determination result is yes.
Optionally, the obtaining module 41 is specifically configured to: detecting the current environment temperature and the current airflow flowing data for preset times; accordingly, the determining module 42 is specifically configured to: respectively calculating errors between current airflow flowing data and corresponding reference airflow flowing data in the detection results aiming at the detection results of each time; and calculating the average value of the errors corresponding to all the detection results as a final error.
Optionally, the obtaining module 41 is specifically configured to: detecting the current environment temperature and the current airflow flowing data for preset times; and calculating a first average value of the current ambient temperature in all the detection results and a second average value of the current airflow flowing data in all the detection results so as to determine the dust deposition degree according to the first average value and the second average value.
The detection time is as follows: when the air conditioner is stopped and the compressor is started again for the first time when the environmental temperature of the target area reaches the set temperature after the air conditioner is started.
Optionally, the apparatus further comprises: and the output module is used for outputting reminding information according to the dust accumulation degree after the dust accumulation degree of the air conditioner filter screen is determined according to the current environment temperature and the current airflow flowing data.
The device can execute the method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
EXAMPLE III
The embodiment also provides an air conditioner, including: the air conditioner filter screen dust deposition detection device of the embodiment.
Example four
The embodiment also provides a computer readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method for detecting the dust deposition on the filter screen of the air conditioner is realized.
EXAMPLE five
The present embodiment provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can implement the method for detecting dust deposition on the filter screen of the air conditioner according to the embodiment.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
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 (11)
1. A method for detecting dust deposition on an air conditioner filter screen is characterized by comprising the following steps:
in the process of starting and running of the air conditioner, when a detection time is reached, the current environment temperature of a target area and current airflow flowing data of airflow output by an air outlet of the air conditioner in the target area are obtained; the airflow flow data includes: the air flow direction is the direct flow direction of the air flow output by the air outlet, and the air flow distance is the farthest distance to which the air flow output by the air outlet is diffused in the air flow direction;
determining the dust deposition degree of an air conditioner filter screen according to the current environment temperature and the current airflow flowing data;
wherein, according to current ambient temperature and current air current flow data confirm the laying dust degree of air conditioner filter screen, include:
determining reference airflow flowing data corresponding to the current environment temperature in prestored reference data;
calculating an error between the current airflow flow data and the reference airflow flow data;
and determining the dust accumulation degree corresponding to the calculated error according to the corresponding relation between the preset error and the dust accumulation degree.
2. The method of claim 1, wherein obtaining current airflow flow data for air conditioner outlet output airflow within the target area comprises:
detecting temperature field data within a preset range of the air outlet of the air conditioner;
and determining the current airflow flowing data according to the temperature of each position point in the temperature field data.
3. The method of claim 2, wherein determining the current airflow flow data from the temperature at each location in the temperature field data comprises:
determining the actual air outlet temperature of the air outlet of the air conditioner according to the set temperature;
respectively calculating the difference value between the temperature of each position point in the temperature field data and the actual air outlet temperature;
determining at least two position points corresponding to the difference value within the preset temperature range;
and taking the direction which is formed by the at least two position points and takes the air-conditioning outlet as a starting point as the current airflow direction, and taking the farthest distance diffused along the current airflow direction as the current airflow flowing distance.
4. The method of claim 1, further comprising, prior to determining a dust deposition level of an air conditioner screen based on the current ambient temperature and the current airflow flow data:
judging whether the accumulated running time of the air conditioner reaches a preset time or not;
if yes, determining the dust accumulation degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data;
and if not, storing the current environment temperature and the corresponding current airflow flowing data as reference data.
5. The method of claim 1, wherein obtaining current ambient temperature of a target area and current airflow data for air conditioning outlet output airflow within the target area comprises:
detecting the current environment temperature and the current airflow flowing data for preset times;
determining the dust deposition degree of an air conditioner filter screen according to the current environment temperature and the current airflow flowing data, and the method comprises the following steps:
respectively calculating errors between current airflow flowing data and corresponding reference airflow flowing data in the detection results aiming at each detection result;
calculating the average value of the errors corresponding to all the detection results as a final error;
and determining the dust accumulation degree according to the final error.
6. The method of claim 1, wherein obtaining current ambient temperature of a target area and current airflow data for air conditioning outlet output airflow within the target area comprises:
detecting the current environment temperature and the current airflow flowing data for preset times;
and calculating a first average value of the current ambient temperature in all the detection results and a second average value of the current airflow flowing data in all the detection results so as to determine the dust deposition degree according to the first average value and the second average value.
7. The method according to any one of claims 1 to 6, wherein the detection timing is: and stopping the air conditioner and restarting the compressor when the ambient temperature of the target area reaches the set temperature for the first time after the air conditioner is started.
8. The method of any of claims 1 to 6, further comprising, after determining a dust deposition level of an air conditioner screen based on the current ambient temperature and the current airflow flow data:
and outputting reminding information according to the dust accumulation degree.
9. The utility model provides an air conditioner filter screen laying dust detection device which characterized in that includes:
the system comprises an acquisition module, a detection module and a control module, wherein the acquisition module is used for acquiring the current ambient temperature of a target area and the current airflow flowing data of airflow output by an air outlet of the air conditioner in the target area when a detection time arrives in the process of starting and running of the air conditioner; the airflow flow data includes: the air flow direction is the direct flow direction of the air flow output by the air outlet, and the air flow distance is the farthest distance to which the air flow output by the air outlet is diffused in the air flow direction;
the determining module is used for determining the dust deposition degree of the air conditioner filter screen according to the current environment temperature and the current airflow flowing data;
the determining module comprises:
a second determination unit for determining reference airflow flow data corresponding to the current ambient temperature from pre-stored reference data;
the calculating unit is used for calculating the error between the current airflow flowing data and the reference airflow flowing data;
and the third determining unit is used for determining the dust deposition degree corresponding to the calculated error according to the preset corresponding relation between the error and the dust deposition degree.
10. An air conditioner, comprising: the air conditioner filter screen dust deposition detecting device of claim 9.
11. A computer-readable storage medium, on which a computer program is stored, wherein the program, when executed by a processor, implements the method of detecting dust deposition on an air conditioner filter according to any one of claims 1 to 8.
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