CN106196530B - Air conditioner air volume self-compensation control method and system and air conditioner - Google Patents
Air conditioner air volume self-compensation control method and system and air conditioner Download PDFInfo
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- CN106196530B CN106196530B CN201610581565.2A CN201610581565A CN106196530B CN 106196530 B CN106196530 B CN 106196530B CN 201610581565 A CN201610581565 A CN 201610581565A CN 106196530 B CN106196530 B CN 106196530B
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to the field of household appliance control, in particular to an air conditioner air volume self-compensation control method, an air conditioner air volume self-compensation control system and an air conditioner. The method comprises the following steps: acquiring the current filth blockage degree of the air conditioner dust filter screen; acquiring fan rotating speed compensation amount corresponding to the current filth blockage degree according to a pre-established fan rotating speed compensation amount calculation formula; acquiring a target rotating speed of the fan according to the fan rotating speed compensation quantity; and controlling the fan to operate according to the target rotating speed of the fan. According to the invention, the filth blockage degree of the air conditioner dust filter screen is detected, and the wind speed of the fan is correspondingly compensated according to the filth blockage degree, so that the air output of the air conditioner is not reduced compared with the filth blockage degree before, the air quantity required by the system can be still output by the air conditioner in a dust accumulation state, the refrigeration and heating effects of the air conditioner and the use comfort of a user are improved, and the air conditioner is more energy-saving and environment-friendly.
Description
Technical Field
The invention relates to the field of household appliance control, in particular to an air conditioner air volume self-compensation control method, an air conditioner air volume self-compensation control system and an air conditioner.
Background
The cooling and heating capacity is one of the most important indexes of the air conditioner, and the air supply amount of the air conditioner is one of the important factors influencing the cooling and heating capacity. If the refrigerating or heating temperature of the evaporator is already low or high, but the air flow passing through the evaporator is insufficient, the heat cannot be taken away in time, so that the capacity of the air conditioner is reduced, the refrigerating and heating effects are poor, the user experience is poor, and the damage of air conditioner devices or the triggering of a protection mechanism to stop the operation can be caused more seriously.
The air supply quantity of the air conditioner is in direct proportion to the rotating speed of the fan, so that the traditional air conditioner control system regulates and controls the air supply quantity by regulating the rotating speed of the fan, and the air supply quantity is coordinated with the running frequency of the compressor and the temperature of the evaporator, thereby achieving the best refrigerating and heating performance. However, the corresponding relation between the fan rotating speed and the air supply quantity of the method is an empirical value when the air conditioner air duct is unblocked, and the condition that the air duct is blocked due to dirt of the dust filter screen is not considered. Along with the operation of the air conditioner, the more the dust attached to the dust filter screen is accumulated, and the ventilation resistance is larger and larger. In this case, the amount of air supplied by the same fan speed is greatly reduced, and the system requirement cannot be met, so that the air conditioner does not operate in an optimal state, and the system energy consumption is increased. Even if the user cleans the dust screen at intervals, the same problem occurs in the process before cleaning.
Disclosure of Invention
The invention provides an air conditioner air volume self-compensation control method, a control system and an air conditioner, and solves the technical problems in the prior art.
The technical scheme for solving the technical problems is as follows:
according to one aspect of the invention, an air conditioner air volume self-compensation control method is provided, which comprises the following steps:
step 2, acquiring fan rotating speed compensation amount corresponding to the current filth blockage degree according to a pre-established fan rotating speed compensation amount calculation formula;
step 3, acquiring a target rotating speed of the fan according to the fan rotating speed compensation quantity;
and 4, controlling the fan to operate according to the target rotating speed of the fan.
According to another aspect of the invention, an air conditioner air volume self-compensation control system is provided, which comprises a filth blockage degree acquisition module, a rotating speed compensation amount acquisition module, a target rotating speed acquisition module and a control module,
the dirty blockage degree acquisition module is used for acquiring the current dirty blockage degree of the air conditioner dust filter net;
the rotating speed compensation quantity obtaining module is used for obtaining a fan rotating speed compensation quantity corresponding to the current filth blockage degree according to a fan rotating speed compensation quantity calculation formula established in advance;
the target rotating speed acquisition module is used for acquiring the target rotating speed of the fan according to the fan rotating speed compensation quantity;
the control module is used for controlling the fan to operate according to the target rotating speed of the fan.
In order to solve the technical problem, the invention also provides an air conditioner which comprises the air conditioner air volume self-compensation control system.
The invention has the beneficial effects that: according to the invention, the filth blockage degree of the air conditioner dust filter screen is detected, and the wind speed of the fan is correspondingly compensated according to the filth blockage degree, so that the air output of the air conditioner is not reduced compared with the filth blockage degree before, the air quantity required by the system can be still output by the air conditioner in a dust accumulation state, the refrigeration and heating effects of the air conditioner and the use comfort of a user are improved, and the air conditioner is more energy-saving and environment-friendly.
Drawings
Fig. 1 is a schematic flow chart of an air conditioner air volume self-compensation control method in embodiment 1;
FIG. 2 is a graph showing stepless speed compensation in accordance with embodiment 2;
FIG. 3 is a schematic structural diagram of an air conditioner air volume self-compensation control system according to embodiment 3;
fig. 4 is a schematic structural diagram of an air conditioner according to embodiment 4.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, a schematic flow chart of an air conditioner air volume self-compensation control method in embodiment 1 is shown, and the method includes the following steps:
step 2, acquiring fan rotating speed compensation amount corresponding to the current filth blockage degree according to a pre-established fan rotating speed compensation amount calculation formula;
step 3, acquiring a target rotating speed of the fan according to the fan rotating speed compensation quantity;
and 4, controlling the fan to operate according to the target rotating speed of the fan.
The steps of example 1 are specifically described below.
In step 1 of this embodiment, different degrees of dirt blockage of the air-conditioning dust filter net are represented by 100 numerical values of 1%, 2% and … … 100%, and of course, in other embodiments, other numerical values may be selected to represent the degrees of dirt blockage of the air-conditioning dust filter net, without affecting the technical effects of the present invention. In this embodiment, obtaining the current filth blockage degree of the air conditioner dust filter includes the following steps:
setting parameters for judging the filth blockage degree of the air conditioner dust filtering net;
pre-establishing a corresponding relation table of the parameters and the filth blockage degree of the air conditioner dust filter screen;
and acquiring a current parameter value, inquiring the corresponding relation table, and acquiring the current filth blockage degree corresponding to the current parameter value.
In this embodiment, the parameter setting step and the correspondence table establishing step are both set according to specific experimental data before the air conditioner leaves the factory, and when the user uses the air conditioner, the user directly acquires the current parameter value and queries the preset correspondence table, so that the current filth blockage degree corresponding to the current parameter value can be obtained. The parameters comprise the air volume, the air conditioner running time, the fan running power, the pressure difference between two sides of the dust filter screen, the light current value formed by infrared light or visible light penetrating through the dust filter screen on the photosensitive element or the voltage value of two ends of a resistor connected with the photosensitive element in series. The longer the air conditioner is operated, the higher the dirt blocking degree of the dust filter screen is. The dirt blockage of the dust filter screen can influence the air circulation, so that the higher the dirt blockage degree of the dust filter screen is, the lower the running power of the fan is under the condition of maintaining the rotating speed of the direct current fan to be constant. The higher the dirt blockage degree of the dust filter screen is, the smaller the air volume is, and the larger the pressure difference between the two sides of the dust filter screen is, so that in the embodiment, the dirt blockage degree of the dust filter screen of the air conditioner can be judged by detecting the parameters. In a preferred embodiment, the degree of dirt blockage of the air conditioner dust filter screen can be judged by using a photocurrent value formed on the photosensitive element by infrared light or visible light passing through the dust filter screen. The method adopts a singlechip to control a light-emitting device to emit light, infrared light or visible light penetrates through an air conditioner dust filter net and then irradiates a photosensitive element such as a photodiode and a phototriode arranged on the other side of the air conditioner dust filter net, and the photosensitive element can convert an optical signal into an electrical signal and generate photocurrent. If dust and the like are attached to the dust filter screen of the air conditioner, infrared light irradiated to the dust filter screen is reflected, scattered and absorbed, so that the higher the dirt blockage degree of the dust filter screen is, the less light passes through the dust filter screen and is irradiated to the photosensitive element, and the smaller the photocurrent generated by the photosensitive element is. The dirt blocking degree of the dust filter screen can be obtained by collecting photocurrent generated by the photosensitive element or voltage on two sides of a resistor connected with the photosensitive element in series. The judging method has the advantages of low cost, easy implementation, strong universality and high accuracy.
Meanwhile, a corresponding relation table of the parameters and different filth blockage degrees is preset in the embodiment, and the current filth blockage degree corresponding to the current parameter value can be obtained by inquiring the corresponding relation table.
In other embodiments, the current filth blockage degree of the air conditioner dust filter net can be obtained by the following method:
setting parameters for judging the filth blockage degree of the air conditioner dust filtering net;
acquiring the parameter value when the air conditioner is used for the first time, and setting the dirty and blocked degree of the corresponding dust filter screen as a first numerical value;
acquiring the parameter value after a preset time, and setting the dirty and blocked degree of the corresponding dust filter screen as a second numerical value;
and acquiring a current parameter value, and obtaining a current filth blockage degree corresponding to the current parameter value by adopting a normalization method.
For example, when the air conditioner is used for the first time, the dirty degree corresponding to the collected light current value of the photosensitive element is set to be 0%, under the condition that a common user normally uses the air conditioner for one year and a dust filter net is not cleaned during the use, the dirty degree corresponding to the collected light current value of the photosensitive element is set to be 100%, the rest dirty degree values are linear equal division conversion of the corresponding measured light current value of the photosensitive element on the data difference value of the two ends, namely, a min-max normalization method is adopted for linear change, and the corresponding dirty degree of the dust filter net is processed to be a value between 0% and 100%. In the above steps, the parameter setting process for judging the dirt blockage degree of the air conditioner dust filter net, the setting process of two end values as reference values and the acquiring process of the parameter range corresponding to each of the one hundred grades are obtained by experimental tests before the air conditioner leaves a factory, and a user can directly use the data when the method is used for automatic air conditioner air volume compensation. Of course, in other embodiments, other criteria may be selected to define the two end values, and other ways to obtain the parameter ranges corresponding to each level are within the scope of the present invention.
In this embodiment, step 2 adopts a stepless compensation mode, and instead of performing level division on the dust filter, a curve of the required rotation speed compensation amount under different filth blockage conditions is fitted to the maximum extent, and the rotation speed compensation amount corresponding to the filth blockage degree is calculated by using an expression of the curve. The method comprises the following specific steps:
dividing the filth blockage degree of the air conditioner dust filter screen into m value intervals;
a fan rotating speed compensation amount calculation formula corresponding to each value interval is established in advance;
and substituting the current filth blockage degree into a fan rotating speed compensation amount calculation formula of the corresponding value interval to generate a fan rotating speed compensation amount corresponding to the current filth blockage degree. In this embodiment, the specific implementation process of the above method is as follows:
s201, acquiring fan rotating speed compensation required by different filth blockage degrees;
considering the problem of program operation burden, in a more preferred embodiment, the fan rotational speed compensation amount calculation curve can be approximated to a segmented broken line form, so as to more accurately calculate the fan rotational speed compensation amount △ n, wherein the fan rotational speed compensation amount calculation curve is approximated to m segments of straight lines, m represents the dust filtration and dirt blockage degree divided into m ranges, and the fan compensation amounts corresponding to the dirt blockage degrees in the different dirt blockage degree ranges are calculated by the expression of each segment of straight line, in a specific implementation process, the expressions of the curve and the segmented straight lines are trained and set before the air conditioner leaves a factory, and a user can obtain the corresponding fan rotational speed compensation amounts according to the obtained current dirt blockage degree, as shown in fig. 2, the rotational speed stepless compensation amount calculation curve of the embodiment 2 is approximated to 5 segments of straight lines, specifically, as a graph:
① when 0% ≦ d < 25%, △ n △ nd1 × d/0.25;
② when 25% ≦ d < 40%, △ n △ nd1+ (△ nd2- △ nd1) × (d-0.25)/0.15;
③ when 40% ≦ d < 55%, △ n △ nd2+ (△ nd3- △ nd2) × (d-0.4)/0.15;
④ when 55% ≦ d < 70%, △ n △ nd3+ (△ nd4- △ nd3) × (d-0.55)/0.15;
⑤ when 70% ≦ d ≦ 100%, △ n ≦ △ nd4+ (△ nd5- △ nd4) × (d-0.7)/0.3.
If △ nd1, △ nd2, △ nd3, △ nd4 and △ nd5 take values of 150, 200, 240, 270 and 310 respectively, when the current dirt blockage degree of the dust filter net is 45%, the rotating speed compensation quantity △ n is 200+ (240 and 200) × (d-0.4)/0.15 is 213r/min according to the formula ③, the rotating speed compensation is 213r/min, and the air volume compensation is about 106m3For 35 machines,/h.
In this embodiment, the step of obtaining the target rotation speed of the fan in step 3 specifically includes:
acquiring a current fan rotating speed value;
acquiring a coefficient K according to the current operation condition of the air conditioner, and calculating the product of the coefficient K and the fan rotating speed compensation amount;
and summing the current fan rotating speed value and the product to obtain the target rotating speed of the fan.
In order to avoid that the target rotation speed of the fan exceeds the maximum limit rotation speed of the fan, step 3 of the embodiment further includes the following steps: and comparing the target rotating speed of the fan with the maximum limit rotating speed of the fan, and modifying the target rotating speed of the fan into the maximum limit rotating speed of the fan if the target rotating speed of the fan is higher than the maximum limit rotating speed of the fan. And if the maximum limit rotating speed of the fan is less than or equal to the maximum limit rotating speed of the fan, controlling the step 4 according to the calculated target rotating speed of the fan.
In this embodiment, two conditions are defined for the current operation mode of the air conditioner, which are respectively an automatic control mode, that is, the air conditioning system automatically calculates the rotating speed according to the current operation condition of the air conditioner; and a user control mode, namely, a user sets the wind speed through a remote controller, and the system runs a corresponding rotating speed value. And when the air speed of the air conditioner operates in an automatic control mode, the value of the coefficient K is 1.
When the air conditioner runs in a user control mode and the rotating speed set by a user is smaller than the automatic rotating speed calculated by the air conditioning system according to the current air conditioner running condition, the value range of the coefficient K is 1-1.5; when the air conditioner runs in a user control mode and the rotating speed set by a user is greater than the automatic rotating speed calculated by the air conditioning system according to the current air conditioner running condition, the value range of the coefficient K is 0.1-0.5; and when the air speed of the air conditioner is operated in a user control mode and the rotating speed set by a user is equal to the automatic rotating speed calculated by the air conditioning system according to the current air conditioner operation condition, the value of the coefficient K is 1.
As shown in fig. 3, the structural schematic diagram of the air-conditioning air volume self-compensation control system in embodiment 3 includes a filth blockage degree obtaining module, a rotation speed compensation amount obtaining module, a target rotation speed obtaining module, and a control module, where the filth blockage degree obtaining module is configured to obtain a current filth blockage degree of an air-conditioning dust filter;
the rotating speed compensation quantity obtaining module is used for obtaining a fan rotating speed compensation quantity corresponding to the current filth blockage degree according to a fan rotating speed compensation quantity calculation formula established in advance;
the target rotating speed acquisition module is used for acquiring the target rotating speed of the fan according to the fan rotating speed compensation quantity;
the control module is used for controlling the fan to operate according to the target rotating speed of the fan.
In this embodiment, the filth blockage degree obtaining module includes: the first storage unit is used for storing a pre-established corresponding relation table of the judging parameter of the filth blockage degree of the air-conditioning dust filtering net and the filth blockage degree of the air-conditioning dust filtering net; the first acquisition unit is used for acquiring the current parameter value; and the first query unit is used for querying the corresponding relation table and acquiring the current filth blockage degree corresponding to the current parameter value.
In other embodiments, the filth level obtaining module includes: the pretreatment unit is used for presetting parameters for judging the filth blockage degree of the air conditioner dust filtering net; setting the dirty and blocked degree of the dust filter screen corresponding to the parameter value when the air conditioner is used for the first time as a first numerical value; setting the dirty and blocked degree of the dust filter screen corresponding to the parameter value after the preset time as a second numerical value; the second acquisition unit is used for acquiring the current parameter value; and the conversion unit is used for obtaining the current filth blockage degree corresponding to the current parameter value by adopting a normalization method.
In this embodiment, the rotation speed compensation amount obtaining module includes: the second storage unit is used for storing pre-established fan rotating speed compensation amount calculation formulas corresponding to the dirty and blocked degrees of the air conditioner dust filtering net in different value intervals;
and the first calculation unit is used for substituting the current filth blockage degree into a fan rotating speed compensation amount calculation formula of the corresponding value interval to generate a fan rotating speed compensation amount corresponding to the current filth blockage degree.
In this embodiment, the target rotation speed obtaining module includes: the third acquisition unit is used for acquiring the current fan rotating speed value; the coefficient acquisition unit is used for acquiring a coefficient K according to the current running condition of the air conditioner; the second calculating unit is used for calculating the product of the coefficient K and the fan rotating speed compensation amount; the summation unit is used for summing the current fan rotating speed value and the product to obtain the target rotating speed of the fan; and the comparison unit is used for comparing the target rotating speed of the fan with the maximum limit rotating speed of the fan, and modifying the target rotating speed of the fan into the maximum limit rotating speed of the fan if the target rotating speed of the fan is higher than the maximum limit rotating speed of the fan.
In this embodiment, the coefficient obtaining unit includes:
the air conditioner wind speed operation mode judging unit is used for judging whether the air conditioner wind speed operation mode is an automatic control mode or a user control mode;
the coefficient output unit is used for outputting the value of the coefficient K to be 1 when the air speed of the air conditioner runs in the automatic control mode; when the air conditioner runs in a user control mode and the rotating speed set by a user is equal to the automatic rotating speed calculated by the air conditioning system according to the current air conditioner running condition, the value of the output coefficient K is 1; or when the air conditioner runs in a user control mode and the rotating speed set by a user is less than the automatic rotating speed calculated by the air conditioning system according to the current air conditioner running condition, outputting a coefficient K, wherein the value range of the K is 1-1.5; or when the air speed of the air conditioner is operated in a user control mode and the rotating speed set by a user is greater than the automatic rotating speed calculated by the air conditioning system according to the current air conditioner operation condition, the value range of the output coefficient K is 0.1-0.5. For the last two cases, the specific value of the coefficient K may be determined by a preset coefficient mapping table, or determined according to the difference between the rotation speed set by the user and the automatic rotation speed calculated according to the current air conditioner operation condition.
Fig. 4 is a schematic structural diagram of an air conditioner according to embodiment 4, which includes the air conditioner air volume self-compensation control system.
The invention detects the filth blockage degree of the air conditioner dust filter screen, and correspondingly compensates the wind speed of the fan according to the filth blockage degree, thereby ensuring that the air output of the air conditioner is not reduced compared with the filth blockage, ensuring that the air conditioner can still output the air quantity required by the system in a dust accumulation state, improving the refrigeration and heating effects of the air conditioner and the use comfort of users, and being more energy-saving and environment-friendly.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. An air conditioner air volume self-compensation control method is characterized by comprising the following steps:
step 1, acquiring the current filth blockage degree of an air conditioner dust filter net through presetting parameters for judging the filth blockage degree of the air conditioner dust filter net; the parameters comprise the air volume, the air conditioner running time, the fan running power, the pressure difference between two sides of the dust filter screen, the light current value formed by infrared light or visible light penetrating through the dust filter screen on the photosensitive element or the voltage value of two ends of a resistor connected with the photosensitive element in series;
step 2, acquiring fan rotating speed compensation amount corresponding to the current filth blockage degree according to a pre-established fan rotating speed compensation amount calculation formula; the method specifically comprises the following steps: pre-establishing a fan rotating speed compensation amount calculation formula corresponding to the filth blockage degree of the air conditioner dust filtering net in different value intervals; substituting the current filth blockage degree into a fan rotating speed compensation amount calculation formula of the corresponding value interval to generate a fan rotating speed compensation amount corresponding to the current filth blockage degree;
step 3, acquiring a target rotating speed of the fan according to the fan rotating speed compensation quantity; the method specifically comprises the following steps: acquiring a current fan rotating speed value; acquiring a coefficient K according to the current operation condition of the air conditioner, and calculating the product of the coefficient K and the fan rotating speed compensation amount; summing the current fan rotating speed value and the product to obtain a target rotating speed of the fan;
and 4, controlling the fan to operate according to the target rotating speed of the fan.
2. An air conditioner air volume self-compensation control method according to claim 1, wherein the step 1 is specifically:
pre-establishing a corresponding relation table of parameters for judging the filth blockage degree of the air conditioner dust filtering net and the filth blockage degree of the air conditioner dust filtering net;
and acquiring a current parameter value, inquiring the corresponding relation table, and acquiring the current filth blockage degree corresponding to the current parameter value.
3. An air conditioner air volume self-compensation control method according to claim 1, wherein the step 1 is specifically:
presetting parameters for judging the filth blockage degree of the air conditioner dust filtering net; setting the dirty and blocked degree of the dust filter screen corresponding to the parameter value when the air conditioner is used for the first time as a first numerical value; setting the dirty and blocked degree of the dust filter screen corresponding to the parameter value after the preset time as a second numerical value;
and acquiring a current parameter value, and obtaining a current filth blockage degree corresponding to the current parameter value by adopting a normalization method.
4. The air conditioner air volume self-compensation control method according to claim 1, wherein the step 3 further comprises: and comparing the target rotating speed of the fan with the maximum limit rotating speed of the fan, and modifying the target rotating speed of the fan into the maximum limit rotating speed of the fan if the target rotating speed of the fan is higher than the maximum limit rotating speed of the fan.
5. The air conditioner air volume self-compensation control method of claim 4, wherein when the air conditioner air speed is in an automatic control mode operation, the coefficient K takes a value of 1.
6. The air conditioner air volume self-compensation control method according to claim 4, characterized in that when the air conditioner air speed is operated in a user control mode and the rotation speed set by a user is less than the automatic rotation speed calculated by the air conditioning system according to the current air conditioner operation condition, the value range of the coefficient K is 1-1.5; when the air conditioner runs in a user control mode and the rotating speed set by a user is greater than the automatic rotating speed calculated by the air conditioning system according to the current air conditioner running condition, the value range of the coefficient K is 0.1-0.5; and when the air speed of the air conditioner is operated in a user control mode and the rotating speed set by a user is equal to the automatic rotating speed calculated by the air conditioning system according to the current air conditioner operation condition, the value of the coefficient K is 1.
7. An air conditioner air volume self-compensation control system is characterized by comprising a filth blockage degree acquisition module, a rotating speed compensation volume acquisition module, a target rotating speed acquisition module and a control module,
the dirty blocking degree acquisition module is used for acquiring the current dirty blocking degree of the air conditioner dust filter net through a preset parameter for judging the dirty blocking degree of the air conditioner dust filter net; the parameters comprise the air volume, the air conditioner running time, the fan running power, the pressure difference between two sides of the dust filter screen, the light current value formed by infrared light or visible light penetrating through the dust filter screen on the photosensitive element or the voltage value of two ends of a resistor connected with the photosensitive element in series;
the rotating speed compensation quantity obtaining module is used for obtaining a fan rotating speed compensation quantity corresponding to the current filth blockage degree according to a fan rotating speed compensation quantity calculation formula established in advance; the rotation speed compensation amount obtaining module comprises: the second storage unit is used for storing pre-established fan rotating speed compensation amount calculation formulas corresponding to the dirty and blocked degrees of the air conditioner dust filtering net in different value intervals; the first calculation unit is used for substituting the current filth blockage degree into a fan rotating speed compensation amount calculation formula of the corresponding value interval to generate a fan rotating speed compensation amount corresponding to the current filth blockage degree;
the target rotating speed acquisition module is used for acquiring the target rotating speed of the fan according to the fan rotating speed compensation quantity; the target rotational speed acquisition module includes: the third acquisition unit is used for acquiring the current fan rotating speed value; the coefficient acquisition unit is used for acquiring a coefficient K according to the current running condition of the air conditioner; the second calculating unit is used for calculating the product of the coefficient K and the fan rotating speed compensation amount; the summation unit is used for summing the current fan rotating speed value and the product to obtain the target rotating speed of the fan;
the control module is used for controlling the fan to operate according to the target rotating speed of the fan.
8. The air conditioner air volume self-compensation control system according to claim 7, wherein the filth degree obtaining module includes:
the first storage unit is used for storing a pre-established corresponding relation table of the judging parameter of the filth blockage degree of the air-conditioning dust filtering net and the filth blockage degree of the air-conditioning dust filtering net;
the first acquisition unit is used for acquiring the current parameter value;
and the first query unit is used for querying the corresponding relation table and acquiring the current filth blockage degree corresponding to the current parameter value.
9. The air conditioner air volume self-compensation control system according to claim 7, wherein the filth degree obtaining module includes:
the pretreatment unit is used for presetting parameters for judging the filth blockage degree of the air conditioner dust filtering net; setting the dirty and blocked degree of the dust filter screen corresponding to the parameter value when the air conditioner is used for the first time as a first numerical value; setting the dirty and blocked degree of the dust filter screen corresponding to the parameter value after the preset time as a second numerical value;
the second acquisition unit is used for acquiring the current parameter value;
and the conversion unit is used for obtaining the current filth blockage degree corresponding to the current parameter value by adopting a normalization method.
10. An air conditioner air volume self-compensating control system according to any one of claims 7-9, wherein the target rotation speed obtaining module further includes:
and the comparison unit is used for comparing the target rotating speed of the fan with the maximum limit rotating speed of the fan, and modifying the target rotating speed of the fan into the maximum limit rotating speed of the fan if the target rotating speed of the fan is higher than the maximum limit rotating speed of the fan.
11. The air conditioner air volume self-compensation control system of claim 10, wherein the coefficient obtaining unit includes:
the air conditioner wind speed operation mode judging unit is used for judging whether the air conditioner wind speed operation mode is an automatic control mode or a user control mode;
the coefficient output unit is used for outputting the value of the coefficient K to be 1 when the air conditioner runs in the automatic control mode;
or when the air conditioner runs in a user control mode and the rotating speed set by a user is less than the automatic rotating speed calculated by the air conditioning system according to the current air conditioner running condition, outputting a coefficient K, wherein the value range of the K is 1-1.5;
or when the air conditioner runs in a user control mode and the rotating speed set by a user is greater than the automatic rotating speed calculated by the air conditioning system according to the current air conditioner running condition, outputting the coefficient K, wherein the value range of the K is 0.1-0.5;
or when the air speed of the air conditioner is operated in a user control mode and the rotating speed set by the user is equal to the automatic rotating speed calculated by the air conditioning system according to the current air conditioner operation condition, the value of the output coefficient K is 1.
12. An air conditioner characterized by comprising the air conditioning air volume self-compensation control system of any one of claims 7 to 11.
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| PCT/CN2017/084018 WO2018014634A1 (en) | 2016-07-21 | 2017-05-11 | Air conditioning air flow volume automatic compensation control method and system, and air conditioner |
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| CN108917102A (en) * | 2017-03-29 | 2018-11-30 | 青岛海尔空调电子有限公司 | The detection method and device of condenser for outdoor unit of air conditioner cleanliness |
| CN107441847A (en) * | 2017-09-28 | 2017-12-08 | 京东方科技集团股份有限公司 | Air filtering system and its control method, control device |
| CN108168024A (en) * | 2017-12-21 | 2018-06-15 | 珠海格力电器股份有限公司 | The reminding method and system of return air strainer situation |
| CN110486890A (en) * | 2018-05-14 | 2019-11-22 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN110486889A (en) * | 2018-05-14 | 2019-11-22 | 青岛海尔空调器有限总公司 | Air conditioner and its control method |
| CN111750510B (en) * | 2019-03-29 | 2022-06-14 | 松下电器研究开发(苏州)有限公司 | Control device and control method for air conditioner |
| CN110103669B (en) * | 2019-05-28 | 2021-06-04 | 广州小鹏汽车科技有限公司 | Fault processing method and device for cooling fan |
| CN112240627B (en) * | 2019-07-16 | 2022-04-19 | 青岛海尔空调器有限总公司 | Air conditioner control method and air conditioner |
| CN112682921B (en) * | 2019-10-17 | 2022-11-11 | 广东美的制冷设备有限公司 | Control method and device of air conditioner and air conditioner |
| CN114407948B (en) * | 2021-11-29 | 2023-04-28 | 中车青岛四方机车车辆股份有限公司 | Dirty blocking judging method for filter screen of vehicle-mounted air conditioner |
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