CN114264034B - Fresh air motor control method and device, air conditioner and readable storage medium - Google Patents

Fresh air motor control method and device, air conditioner and readable storage medium Download PDF

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CN114264034B
CN114264034B CN202111671521.6A CN202111671521A CN114264034B CN 114264034 B CN114264034 B CN 114264034B CN 202111671521 A CN202111671521 A CN 202111671521A CN 114264034 B CN114264034 B CN 114264034B
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fresh air
motor
air conditioner
value
rotating speed
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CN114264034A (en
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邵禹琦
梁勇超
袁文昭
高旭
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TCL Air Conditioner Zhongshan Co Ltd
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TCL Air Conditioner Zhongshan Co Ltd
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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

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Abstract

The application provides a fresh air motor control method and device, an air conditioner and a readable storage medium. The fresh air motor control method provided in the application can judge whether the fresh air filter screen generates position change only by means of the motor rotating speed of the fresh air motor, is suitable for most air conditioners in the market, and can complete the updating of the anti-pinch function only by adjusting the control logic of the air conditioner without the anti-pinch function. In addition, the method in the embodiment of the application does not need to arrange a position detection module specially used for detecting the position of the fresh air filter screen in the air conditioner, so that the cost is lower than that of the air conditioner with the position detection module, and the method can be used for large-scale production.

Description

Fresh air motor control method and device, air conditioner and readable storage medium
Technical Field
The application relates to the technical field of air conditioners, in particular to a fresh air motor control method and device, an air conditioner and a readable storage medium.
Background
At present, a fresh air module is additionally arranged on the indoor side of the fresh air conditioner, so that the fresh air function is realized. And only one layer of fresh air filter screen is used as a barrier between the impeller of the fresh air system and a user, so that the possibility of danger caused by the fact that the user stretches a hand into the fresh air module exists, and therefore a control method for controlling the air conditioner and avoiding hand clamping is needed when the user possibly stretches the hand into the air conditioner.
Prior art mostly realizes protect function through sensor technology, for example, can carry out corresponding control to the air conditioner when detecting new trend filter screen position deviation through the position detection module who sets up the new trend filter screen. However, this method requires a special position detection module in the air conditioner, resulting in an increase in the cost of producing the air conditioner.
Disclosure of Invention
The application provides a fresh air motor control method and device, an air conditioner and a readable storage medium, and aims to solve the problem that production cost is increased due to the fact that modules of the air conditioner are additionally added when the aim of preventing hands of the existing air conditioner is achieved.
In a first aspect, the present application provides a fresh air motor control method, including:
acquiring the motor rotating speed of a fresh air motor in the air conditioner;
judging whether a fresh air filter screen in the air conditioner generates position change or not according to a first rotating speed change value of the rotating speed of the motor;
if the new trend filter screen produces the position change, then stops the work of new trend motor to avoid new trend motor during operation presss from both sides and hinders the user.
In a possible implementation manner, the determining, according to a first rotation speed change value of the rotation speed of the motor, whether a position of a fresh air filter in the air conditioner changes includes:
comparing the first rotating speed change value with a preset change value threshold;
if the first rotating speed change value is larger than or equal to the change value threshold value, acquiring a historical instruction of the air conditioner;
and if the historical instruction does not contain a rotating speed control instruction for the fresh air motor, judging that the position of a fresh air filter screen in the air conditioner is changed.
In a possible implementation manner, the determining whether a position of a fresh air filter in the air conditioner changes according to a first rotation speed change value of the rotation speed of the motor includes:
comparing the first rotating speed change value with a preset change value threshold;
if the first rotating speed change value is larger than or equal to the change value threshold, acquiring a preset reference noise value corresponding to the current motor rotating speed in the motor rotating speeds and a current noise value of the air conditioner;
and if the noise difference value between the current noise value and the preset reference noise value is greater than or equal to a preset difference threshold value, judging that the position of a fresh air filter screen in the air conditioner is changed.
In a possible implementation manner, before obtaining the fan speed of the fresh air motor in the air conditioner, the method further includes:
acquiring a first fan rotating speed of an air supply fan in the air conditioner;
judging whether a front panel of an indoor unit of the air conditioner is opened or not according to a second rotating speed change value of the rotating speed of the first fan;
and if the front panel of the indoor unit is opened, executing the step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
In a possible implementation manner, before obtaining the fan speed of the fresh air motor in the air conditioner, the method further includes:
acquiring the starting current of the fresh air motor;
if the starting current is larger than a preset current threshold value, the fresh air motor is closed, and an alarm is given out when the filter screen is installed abnormally;
and if the starting current is less than or equal to a preset current threshold value, executing a step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
In a possible implementation manner, if the fresh air filter screen generates a position change, the operation of the fresh air motor is stopped to avoid the fresh air motor from hurting the user during operation, and the method further includes:
starting a sterilization device preset in the air conditioner, and reducing the wind level of the air conditioner, wherein the sterilization device comprises a bactericidal lamp;
acquiring a second fan rotating speed of an air supply fan in the air conditioner;
judging whether a front panel of an indoor unit of the air conditioner is closed or not according to the rotating speed of the second fan;
and if the front panel of the indoor unit is closed, closing the sterilizing device, starting the fresh air motor, and restoring the wind shield to the original wind shield before reduction.
In a possible implementation manner, if the fresh air filter screen generates a position change, the operation of the fresh air motor is stopped to avoid the fresh air motor from hurting the user during operation, and the method further includes:
acquiring first time when the fresh air motor stops working;
detecting the quality of the air to obtain an air pollution value, and acquiring second time for detecting the quality of the air;
and if the air pollution value is greater than or equal to a preset air pollution reference value, and the time difference between the second time and the first time is greater than or equal to a preset time threshold value, giving an alarm.
In a second aspect, the present application provides a fresh air motor control device, the fresh air motor control device includes:
the acquisition unit is used for acquiring the motor speed of a fresh air motor in the air conditioner;
the judging unit is used for judging whether a fresh air filter screen in the air conditioner generates position change or not according to a first rotating speed change value of the rotating speed of the motor;
the control unit is used for stopping the work of the fresh air motor if the fresh air filter screen generates position change so as to avoid clamping the user when the fresh air motor works.
In a possible implementation manner, the determining unit is further configured to:
comparing the first rotating speed change value with a preset change value threshold value;
if the first rotating speed change value is larger than or equal to the change value threshold, acquiring a historical instruction of the air conditioner;
and if the historical instruction does not contain a rotating speed control instruction for the fresh air motor, judging that the position of a fresh air filter screen in the air conditioner is changed.
In a possible implementation manner, the determining unit is further configured to:
comparing the first rotating speed change value with a preset change value threshold;
if the first rotating speed change value is larger than or equal to the change value threshold, acquiring a preset reference noise value corresponding to the current motor rotating speed in the motor rotating speeds and a current noise value of the air conditioner;
and if the noise difference value between the current noise value and the preset reference noise value is greater than or equal to a preset difference threshold value, judging that the position of a fresh air filter screen in the air conditioner is changed.
In a possible implementation manner, the fresh air motor control device further includes a front panel judgment unit, and the front panel judgment unit is used for:
acquiring a first fan rotating speed of an air supply fan in the air conditioner;
judging whether a front panel of an indoor unit of the air conditioner is opened or not according to a second rotating speed change value of the rotating speed of the first fan;
and if the front panel of the indoor unit is opened, executing the step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
In a possible implementation manner, the fresh air motor control device further includes a current determination unit, and the current determination unit is configured to:
acquiring the starting current of the fresh air motor;
if the starting current is larger than a preset current threshold value, the fresh air motor is closed, and an alarm is given out when the filter screen is installed abnormally;
and if the starting current is less than or equal to a preset current threshold value, executing the step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
In a possible implementation, the fresh air motor control device further comprises a sterilization unit, and the sterilization unit is used for:
starting a sterilizing device preset in the air conditioner, and reducing the wind shield of the air conditioner, wherein the sterilizing device comprises a sterilizing lamp;
acquiring a second fan rotating speed of an air supply fan in the air conditioner;
judging whether a front panel of an indoor unit of the air conditioner is closed or not according to the rotating speed of the second fan;
and if the front panel of the indoor unit is closed, closing the sterilizing device, starting the fresh air motor, and restoring the wind shield to the original wind shield before reduction.
In a possible implementation, the fresh air motor control device further comprises an alarm unit, and the alarm unit is used for:
acquiring first time when the fresh air motor stops working;
detecting the quality of the air to obtain an air pollution value, and acquiring second time for detecting the quality of the air;
and if the air pollution value is greater than or equal to a preset air pollution reference value, and the time difference between the second time and the first time is greater than or equal to a preset time threshold value, giving an alarm.
In a third aspect, the present application further provides an air conditioner, where the air conditioner includes a processor and a memory, where the memory stores a computer program, and the processor executes, when calling the computer program in the memory, any of the steps in the fresh air motor control method provided in the present application.
In a fourth aspect, the present application further provides a readable storage medium, on which a computer program is stored, where the computer program is loaded by a processor to execute the steps in the fresh air motor control method.
To sum up, the fresh air motor control method provided in the application includes: acquiring the motor rotating speed of a fresh air motor in the air conditioner; judging whether a fresh air filter screen in the air conditioner generates position change or not according to a first rotating speed change value of the rotating speed of the motor; if the new trend filter screen produces the position change, then stops the work of new trend motor to avoid new trend motor during operation presss from both sides and hinders the user. Therefore, the fresh air motor control method provided by the application can judge whether the fresh air filter screen generates position change only by depending on the motor rotating speed of the fresh air motor, is suitable for most air conditioners on the market, and can complete the updating of the anti-pinch function only by adjusting the control logic of the air conditioner for the air conditioner without the anti-pinch function. In addition, the method in the embodiment of the application does not need to arrange a position detection module specially used for detecting the position of the fresh air filter screen in the air conditioner, so that the cost is lower than that of the air conditioner with the position detection module, and the method can be used for large-scale production.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of an application scenario of a fresh air motor control method provided in an embodiment of the present application;
fig. 2 is a schematic flow chart of a fresh air motor control method provided in an embodiment of the present application;
fig. 3 is a schematic flow chart illustrating a process of determining whether a front panel of an indoor unit is opened according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart illustrating the method for determining whether to control the fresh air motor according to the starting current in the embodiment of the present application;
fig. 5 is another schematic flow chart of a fresh air motor control method provided in an embodiment of the present application;
FIG. 6 is a schematic flow chart illustrating a process of determining whether a fresh air filter changes position according to a current noise level of the air conditioner according to an embodiment of the present disclosure;
FIG. 7 is a schematic flow chart of the determination of whether to alarm according to the embodiment of the present application;
fig. 8 is a schematic structural diagram of an embodiment of a fresh air motor control device provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of an embodiment of an air conditioner provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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 application.
In the description of the embodiments of the present application, it should 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known processes have not been described in detail so as not to obscure the description of the embodiments of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in the embodiments herein.
The embodiment of the application provides a fresh air motor control method and device, an air conditioner and a readable storage medium. The fresh air motor control device can be integrated in an air conditioner, the air conditioner can adopt a working mode of independent operation or an equipment cluster working mode, and for example, the air conditioner can be a multi-connected air conditioner.
An execution main body of the fresh air motor control method according to the embodiment of the present application may be the fresh air motor control device provided in the embodiment of the present application, and may also be an air conditioner, which is explained as the execution main body in the following by way of example, it should be noted that the example with the air conditioner as the execution main body is only for convenience of understanding, and is not intended to limit the present application.
Referring to fig. 1, fig. 1 is a schematic view of a scene of a fresh air motor control system provided in an embodiment of the present application. The fresh air motor control system may include an air conditioner 100, and a fresh air motor control device is integrated in the air conditioner 100.
In addition, as shown in fig. 1, the fresh air motor control system may further include a memory 200 for storing data.
It should be noted that the scene schematic diagram of the fresh air motor control system shown in fig. 1 is only an example, and the fresh air motor control system and the scene described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application.
Referring to fig. 2, fig. 2 is a schematic flow chart of a fresh air motor control method provided in the embodiment of the present application. It should be noted that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in an order different from that shown or described herein. The fresh air motor control method comprises the steps of 201-204, wherein:
201. and acquiring the motor rotating speed of a fresh air motor in the air conditioner.
The fresh air motor is a motor in a fresh air system of the air conditioner and is used for introducing outdoor air into a room and/or discharging indoor air out of the room. The conversion between the air introduction and the air discharge can be realized by changing the rotation direction of the fan blades connected with the fresh air motor. For example, the fresh air motor may be set to rotate clockwise to discharge indoor air to the outside and counterclockwise to introduce outdoor air to the inside.
The motor rotating speed is a plurality of rotating speed values obtained after the rotating speed of the fresh air motor is taken as a value. In some embodiments, the motor speeds include a current motor speed and a historical motor speed of the fresh air motor. For example, after the rotation speed of the fresh air motor is stable, the rotation speed of the fresh air motor can be obtained at preset time intervals, and for each time when the rotation speed of the fresh air motor is obtained, the current rotation speed of the motor and the historical rotation speed of the motor are used as the rotation speeds of the motor. For example, after the rotating speed of the fresh air motor is determined to be stable, the rotating speed of the fresh air motor can be acquired every 2 seconds, and if the current time is 1:00, then 1:00 obtained from the speed obtained from 0: 59. Alternatively, the current motor speed and a plurality of historical motor speeds acquired before the current motor speed may be used as the motor speeds. Taking the example that the rotating speed of the fresh air motor is obtained every 2 seconds after the rotating speed of the fresh air motor is judged to be stable, if the current time is 1:00, then 1:00, and 0:59, 0:59 and 0:59, acquiring the obtained rotation speed as the motor rotation speed respectively at the time of. The method for acquiring the motor rotation speed is not limited in the embodiment of the application, and can be realized by analyzing PWM signals and the like, and is not specifically described.
202. And judging whether a fresh air filter screen in the air conditioner generates position change or not according to the first rotating speed change value of the rotating speed of the motor.
In some embodiments, the motor speed includes only a current motor speed and one historical motor speed, and the first speed change value is a speed difference between the current motor speed and the historical motor speed. Assume that the current time is 1:00, the rotating speed of the motor comprises 1:00 and 0:59, the obtained second rotation speed is obtained by the speed sensor 58, and the first rotation speed change value is the rotation speed difference between the first rotation speed and the second rotation speed. Alternatively, the first rotation speed variation value may refer to an average rate of change of the rotation speed with time, and may be 10 rpm assuming that the first rotation speed and the second rotation speed are 100 rpm and 80 rpm, respectively 2 。
In other embodiments, the motor speed includes a current motor speed and a plurality of historical motor speeds obtained before the current motor speed, and the first speed change value may refer to an average speed difference, for example, 1:00:00-0:59, 0:59:58-0:59, and 0:59:56-0:59, and calculating a ratio of 1 from the first, second and third speed differences to obtain: 00:00-0:59 to obtain a first rotational speed change value. Alternatively, the first rotational speed change value may be an average rate of change of the rotational speed with time. Assume that the current time is 1:00, then 1:00:00-0: first rate of change of rotation between 59: 59:58-0: a second rate of change in rotation speed between 59: 59:56-0:59, and calculating a ratio of 1:00:00-0:59 of the rotational speed of the engine, to obtain a first rotational speed change value.
It should be noted that the first rotational speed change value is a value obtained when the fresh air system is in the same mode. For example, the first rotation speed variation value may be a value calculated when the fresh air system is in a mode of introducing fresh air, or may be a value calculated when the fresh air system is in a mode of exhausting indoor wind. If the fresh air system is switched to the mode of exhausting the indoor wind from the mode of introducing the fresh air or is switched to the mode of introducing the fresh air from the mode of exhausting the indoor wind, the mode switching needs to be waited for finishing when the first rotating speed change value is calculated, and the rotating speed of the fresh air motor can be calculated after being stable, so that the misjudgment is avoided.
In the following, for convenience of understanding, the motor speed only includes the current motor speed and one historical motor speed, if not specifically described.
The purpose of acquiring the first rotating speed change value is to judge the air duct of the fresh air system according to the rotating speed change condition of the fresh air motor, namely whether the air resistance in the fresh air duct changes or not, and whether the position of the fresh air filter screen changes or not can be judged according to the change condition of the air resistance. If first rotational speed change value is big, it shows that the load of new trend motor diminishes, and air resistance diminishes, and the part that blocks circulation of air no longer exists in the wind channel of new trend system, perhaps the air flow that is blockked by the part diminishes, consequently can judge that the position of new trend filter screen is removed to other positions from predetermined mounted position, for example by whole removal air conditioner, or break away from the mounted position after becoming flexible. The removal reason to the new trend filter screen of this application embodiment does not restrict, and the reason that the new trend filter screen produced the position change probably is that the user opens the air conditioner and takes out the new trend filter screen, also can be the installation insecure of new trend filter screen, and the air conditioner during operation new trend filter screen is not hard up under the effect of flowing new trend.
Specifically, the first rotational speed change value may be compared with a preset threshold value to determine a change condition of the air resistance, and whether the change of the air resistance is a result of manual operation or not may be determined in combination with a condition that the air conditioner receives an instruction. At this moment, according to first rotational speed change value, judge whether fresh air filter screen produces position change in the air conditioner, include:
(1) And comparing the first rotating speed change value with a preset change value threshold value.
The change value threshold is a threshold for determining whether the first speed change value is high or low. If the first speed change value is a speed difference, the change value threshold is also the speed difference. If the first speed change value is a rate of change of the speed with time, the threshold value of the change value is also a rate of change of the speed with time. If the first rotating speed change value is larger than or equal to the change value threshold value, the first rotating speed change value is large, and the change of the air resistance is large. If the first rotating speed change value is smaller than the change value threshold value, the first rotating speed change value is small, and the change of the air resistance is small.
The size of the change value threshold value is related to the structure of the air conditioner, and can be set according to the size of a fresh air filter screen in the air conditioner before leaving a factory. For example, for a fresh air filter screen, the smaller the size of the surface filter holes of the fresh air filter screen is, the fewer the number of the filter holes is, the greater the influence of the position of the fresh air filter screen in the fresh air duct on the air resistance is, and therefore, for an air conditioner with a small size and a small number of surface filter holes of the fresh air filter screen, a higher change value threshold value may be set to shield the air resistance change caused by a non-fresh air filter screen, for example, the air resistance change caused by dust deposition in a fresh air system.
(2) And if the first rotating speed change value is greater than or equal to the change value threshold, acquiring a historical instruction of the air conditioner.
If the first rotating speed change value is greater than or equal to the change value threshold, the first rotating speed change value is large, and the air resistance change is large. At this time, there are two possible causes of the change in the rotation speed: (a) The fresh air filter screen generates position change, so that air in the fresh air duct is not blocked by the fresh air filter screen, and the load of the fresh air motor changes, so that the rotating speed changes; (b) The user controls the air conditioner, and changes the rotating speed of the fresh air motor. In order to determine the reason causing the rotation speed change from (a) and (b), the command received by the air conditioner can be acquired, and the judgment can be carried out according to the received command.
The historical instruction refers to an instruction received by the air conditioner before the current motor rotating speed is obtained. For example, the air conditioner may refer to an instruction received by the air conditioner during a time between obtaining the historical motor speed and the current motor speed. The historical command may include a control command for the fresh air motor, and may also include a control command for other components. The history instruction may be acquired by reading a storage space of the air conditioner. For example, a read request may be issued to a memory chip in the air conditioner to obtain a history instruction stored in an address corresponding to the read request in the memory chip.
(3) And if the historical instruction does not contain a rotating speed control instruction for the fresh air motor, judging that the fresh air filter screen in the air conditioner generates position change.
The rotating speed control instruction is used for controlling the rotating speed of the fresh air motor. For example, the rotation speed control command may be an air volume control command of the fresh air system, and if the user reduces the air volume of the fresh air system through the remote controller, the air volume reduction command may be regarded as the rotation speed control command.
If the historical command does not contain the rotating speed control command, the reason (b) is not satisfied, so that the situation that the position of the fresh air filter changes and the first rotating speed change value is larger than or equal to the change value threshold value can be judged.
Conversely, if the historical command includes the rotational speed control command, the reason for the change in the rotational speed may be (b) alone or both (a) and (b) may be included. In order to further determine the reason, the current motor rotating speed of the fresh air motor can be compared with the rotating speed corresponding to the rotating speed control instruction. Taking the rotation speed control instruction as an example of the air volume control instruction of the fresh air system, the rotation speeds corresponding to the air dampers of the fresh air system can be set before leaving a factory, when the historical instruction contains the air volume control instruction of the fresh air system, the rotation speed of the air damper corresponding to the air volume control instruction is compared with the current motor rotation speed of the fresh air motor, if the rotation speed of the air damper is consistent with the current motor rotation speed, only (b) is the reason for causing the rotation speed change, and if the rotation speed of the air damper is inconsistent with the current motor rotation speed, other reasons for causing the rotation speed change are described besides the air volume control instruction, so that the position change of the fresh air filter screen can be judged.
203. If the new trend filter screen produces the position change, then stops the work of new trend motor is in order to avoid new trend motor during operation presss from both sides hurts the user.
If the new trend filter screen produces position change, then the user when stretching into the air conditioner with the hand, owing to do not having blockking of new trend filter screen, user's hand probably is hindered by pivoted new trend motor clamp. For example, after the user moves the fresh air filter screen out of the air conditioner for cleaning, the user needs to stretch the hand into the air conditioner when reinstalling the fresh air filter screen. Or when the new trend filter screen is not hard up, the user need stretch into the air conditioner with the hand in order to set up the new trend filter screen on the mounted position again. In order to avoid the hand of the user to be pinched by the fresh air motor under the above-mentioned condition, when judging that the fresh air filter screen produces the position change, can stop the work of fresh air motor. If the rotation speed of the fresh air motor is subsequently detected to be changed again, and the change trend of the change is opposite to the change trend of the first rotation speed change value, the fresh air filter screen can be judged to be installed again, and the fresh air motor can be restarted at the moment. For example, if the current motor speed is 100 rpm and the historical motor speed is 80 rpm, the first speed change value may be a speed difference, i.e., 20 rpm. If the change of the rotating speed of the fresh air motor is detected subsequently, and the obtained rotating speed difference is-20 r/s, the fresh air filter screen can be judged to be installed again, and the fresh air motor can be restarted at the moment.
In summary, the fresh air motor control method provided in the embodiment of the present application includes: acquiring the motor rotating speed of a fresh air motor in the air conditioner; judging whether a fresh air filter screen in the air conditioner generates position change or not according to a first rotating speed change value of the rotating speed of the motor; if the new trend filter screen produces the position change, then stops the work of new trend motor to avoid new trend motor during operation presss from both sides and hinders the user. Therefore, the fresh air motor control method provided by the embodiment of the application can judge whether the fresh air filter screen generates position change only by depending on the motor rotating speed of the fresh air motor, is suitable for most air conditioners on the market, and can update the hand clamping prevention function only by adjusting the control logic of the air conditioner for the air conditioner without the hand clamping prevention function. In addition, the method in the embodiment of the application does not need to arrange a position detection module specially used for detecting the position of the fresh air filter screen in the air conditioner, so that the cost is lower than that of the air conditioner with the position detection module, and the method can be used for large-scale production.
For the air conditioner with the indoor unit front panel, whether the user may insert a hand into the air conditioner or not can be judged according to the opening and closing condition of the indoor unit front panel, and the steps 201 to 203 are executed under the condition that the user may insert the hand into the air conditioner, so that unnecessary processing steps are reduced. Referring to fig. 3, at this time, before obtaining the fan speed of the fresh air motor in the air conditioner, the method further includes:
301. and acquiring a first fan rotating speed of an air supply fan in the air conditioner.
The air supply fan is a component used for supplying air in the air conditioner, and the air supply quantity, namely the wind shield of the air conditioner can be changed by adjusting the rotating speed of the air supply fan. Different from the fresh air motor, the fresh air motor only introduces fresh air into the air conditioner from the outdoor when in work, and the fresh air is introduced into the indoor through the air supply fan after heat exchange in the air conditioner. The supply fan may be one of a cross flow fan and an axial flow fan, for example. Since the cross flow fan has the advantages of uniform distribution of air flow at the air outlet along the axial direction, a large number of air conditioners in the market currently adopt the cross flow fan as an air supply fan, and hereinafter, unless otherwise specified, the default air supply fan is the cross flow fan.
The first fan rotating speed is a plurality of rotating speed values obtained after the rotating speed of the air supply fan is taken as a value. In some embodiments, the first fan speed includes a current fan speed of the supply fan and a historical fan speed. For example, after the rotation speed of the blower fan is stabilized, the rotation speed of the blower fan may be acquired every preset time interval, and for each time when the rotation speed of the blower fan is acquired, the current rotation speed of the blower fan and the historical rotation speed of the blower fan may be used as the first rotation speed of the blower fan. For example, after it is determined that the rotational speed of the blower fan is stable, the rotational speed of the blower fan may be acquired every 2 seconds, and if the current time is 1:00, then 1:00 obtained from the speed obtained from 0: 59. Alternatively, the current fan speed and a plurality of historical fan speeds acquired before the current fan speed may be used as the first fan speed. Taking the example of obtaining the rotation speed of the air supply fan every 2 seconds after the rotation speed of the air supply fan is determined to be stable, if the current time is 1:00, then 1:00, and 0:59, 0:59: 59, the obtained rotation speeds at the time of 54 are acquired as first fan rotation speeds, respectively. The method for obtaining the first fan rotation speed is not limited in the embodiment of the present application, and may be implemented by analyzing a PWM signal and the like, and is not specifically described.
302. And judging whether a front panel of an indoor unit of the air conditioner is opened or not according to the second rotating speed change value of the rotating speed of the first fan.
In some embodiments, the first fan speed includes only the current fan speed and one historical fan speed, and the second speed change value is a speed difference between the current fan speed and the historical fan speed. Assume that the current time is 1:00, and the first fan speed includes 1:00 with a third rotational speed obtained from 0:59, the second rotation speed variation value is the rotation speed difference between the third rotation speed and the fourth rotation speed. Alternatively, the second rotation speed variation value may refer to an average rate of change of the rotation speed with time, assuming that the third rotation speed and the fourth rotation speed are 100 rpm and 80 rpm, respectivelyRpm/sec, the second rotational speed variation value may be 10 rpm/sec 2 。
In other embodiments, the first fan speed includes a current fan speed and a plurality of historical fan speeds obtained before the current fan speed, and the second speed variation value may be an average speed difference, for example, 1:00:00-0:59, 0:59:58-0:59, and 0:59:56-0:59, and calculating from the fourth, fifth, and sixth speed differences 1:00:00-0:59, to obtain a first speed change value. Alternatively, the first rotational speed change value may be an average rate of change of the rotational speed with time. Assume that the current time is 1:00, then 1:00:00-0:59, fourth rate of change in rotation speed between: 59:58-0: a fifth rate of change in rotation speed between 59: 59:56-0:59, and calculating a ratio of 1 from the fourth rotation speed change rate, the fifth rotation speed change rate and the sixth rotation speed change rate: 00:00-0: 59.
Hereinafter, for convenience of understanding, the first fan speed includes only the current fan speed and one historical fan speed, if not specifically described.
The purpose of obtaining the second rotation speed variation value is to determine whether air resistance is changed in a passage for sending air from the air conditioner to the room, namely an air supply duct, according to the rotation speed variation condition of the air supply fan, and whether a front panel of an indoor unit of the air conditioner is opened or not can be determined according to the variation condition of the air resistance. If the second rotating speed change value is large, the load of the air supply fan is reduced, the air resistance is reduced, and a component for blocking the air circulation in the air supply duct does not exist any more, so that the opening of the front panel of the indoor unit can be judged.
The method for judging whether the fresh air filter screen generates position change can be adopted to judge whether the front panel of the indoor unit is opened. For example, the second rotation speed variation value may be compared with a threshold value to determine a variation condition of the air resistance in the air supply duct, and whether the variation of the air resistance is a result of human operation or not is determined according to a condition that the air conditioner receives an instruction, which is not specifically described in detail.
303. And if the front panel of the indoor unit is opened, executing the step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
If the front panel of the indoor unit is opened, the possibility that a user stretches a hand into the air conditioner is improved, and at the moment, the steps 201 to 203 can be executed to judge the moving condition of the fresh air filter screen in real time so as to control the work of the fresh air motor.
In some embodiments, when the fresh air motor is started, whether the fresh air filter screen is correctly loaded in the air conditioner is judged, the moving condition of the fresh air filter screen is judged under the condition that the fresh air filter screen is correctly loaded, and the situation that other reasons causing air resistance change are judged to be that the fresh air filter screen moves under the condition that the fresh air filter screen is not correctly loaded is avoided. Referring to fig. 4, at this time, before obtaining the fan speed of the fresh air motor in the air conditioner, the method further includes:
401. and acquiring the starting current of the fresh air motor.
The starting current refers to the working current detected when the fresh air motor is started. For example, the starting current may be an average value of the current in a preset time period after the fresh air motor is started. For example, after the fresh air motor is started, the working current of the fresh air motor may be detected every 1 second within 10 seconds, and the average working current may be calculated according to the obtained working current, so as to obtain the starting current. Or, the starting current may also be a current value at a certain moment in a preset time period after the fresh air motor is started. For example, the working current of the fresh air motor can be randomly detected at a certain time within 10 seconds after the fresh air motor is started, so as to obtain the starting current.
The purpose of obtaining the starting current is to judge the load condition of the fresh air motor. If the starting current is larger than the working current of the fresh air motor during normal starting, the fresh air motor is in a no-load working state, and therefore the condition that the fresh air filter screen is not correctly installed in the air conditioner can be judged. For example, the user shifts out the air conditioner with the new trend filter screen in order to wash, does not pack the new trend filter screen back to in the air conditioner after wasing the completion, then starting current can be greater than the operating current when the new trend motor normally starts when opening the new trend motor next time. For example, if the fresh air filter screen in the air conditioner deviates from the correct installation position under the action of fresh air, and if the position of the fresh air filter screen is not corrected, the starting current when the fresh air motor is started next time is also larger than the working current when the fresh air motor is normally started.
Specifically, the starting current may be detected by a current detection component arranged in the air conditioner, or may be obtained in other manners, which is not limited in the embodiment of the present application.
402A, if the starting current is larger than a preset current threshold value, the fresh air motor is closed and abnormal alarm of filter screen installation is carried out.
The current threshold is a threshold for evaluating the magnitude of the starting current. If the starting current is larger than the current threshold, the starting current is larger than the working current when the fresh air motor is normally started. When the starting current is greater than the current threshold value, the fresh air filter screen is not correctly loaded in the air conditioner, so that the fresh air motor can be closed to avoid the bad influence of the overlarge starting current on the fresh air motor, and the abnormal installation of the fresh air filter screen is prompted to a user through warning signals such as optical signals, sound signals and the like. For example, a corresponding error code may be displayed on a display panel of the indoor unit, or a corresponding warning voice may be emitted.
402B, if the starting current is less than or equal to a preset current threshold value, executing the step of obtaining the motor rotating speed of the fresh air motor in the air conditioner.
If the starting current is less than or equal to the preset current threshold, it indicates that the fresh air motor is not in the idle working state, so steps 201 to 203 may be performed to determine whether the fresh air filter screen generates a position change in real time.
In some embodiments, if the position of the fresh air filter screen changes, the working state of the air conditioner can be adjusted to prevent unfiltered fresh air from bringing pollutants into the room, and whether the user finishes the position correction of the fresh air filter screen can be judged through the opening and closing state of the front panel of the indoor unit, and the working state of the air conditioner is restored to the position before the adjustment when the position correction is finished. Referring to fig. 5, at this time, if the fresh air filter screen generates a position change, the operation of the fresh air motor is stopped to avoid that the fresh air motor clamps the user during operation, and then the method further includes:
501. and starting a preset sterilizing device in the air conditioner, and reducing the wind shield of the air conditioner, wherein the sterilizing device comprises a sterilizing lamp.
The purpose of turning on the sterilizing device such as a germicidal lamp is to sterilize the unfiltered fresh air to avoid the fresh air from bringing bacteria indoors and affecting the health of the user.
The purpose of reducing the air damper of the air conditioner is to reduce the amount of fresh air entering a room so as to reduce the content of pollutants in the fresh air entering the room.
502. And acquiring a second fan rotating speed of a cross flow fan in the air conditioner.
For the explanation of the second fan speed, reference may be made to the description of the first fan speed, which is not described herein in detail.
It should be noted that the second fan speed only includes the detected blowing fan speed after the wind level is reduced, so as to avoid the influence of the speed change before and after the wind level is reduced on the subsequent determination.
503. And judging whether a front panel of the indoor unit of the air conditioner is closed or not according to the rotating speed of the second fan.
The method for determining whether the front panel of the indoor unit is closed is the same as the method for determining whether the front panel of the indoor unit is opened in step 302, which is not described in detail.
The purpose of judging whether the front panel of the indoor unit is closed is to judge whether a user finishes correcting the fresh air filter screen. After the user has accomplished the installation to the new trend filter screen, can close indoor set front panel in order to resume the state to normal work with the air conditioner, therefore if the front panel closed, then explain that the user has accomplished the correction to the new trend filter screen. The reason why whether the user finishes the correction to the fresh air filter screen is judged without adopting the rotating speed of the fresh air motor in the embodiment of the application is that even if the user installs the fresh air filter screen, if the indoor unit panel is not closed, the hand of the user may still stay inside the air conditioner, and at the moment, if the fresh air motor is started, the hand of the user still may be clamped.
504. And if the front panel of the indoor unit is closed, closing the sterilizing device, starting the fresh air motor, and restoring the wind shield to the original wind shield before reduction.
If the front panel of the indoor unit is closed, the air conditioner can be recovered to a normal working state at the moment, namely, the degerming device is closed, the fresh air motor is started, and the wind shield is recovered to the wind shield before reduction.
In some embodiments, whether the reason causing the air resistance change is the fresh air filter screen can be judged through the noise value. Referring to fig. 6, at this time, the determining whether a position of a fresh air filter in the air conditioner changes according to the first rotation speed change value of the rotation speed of the motor includes:
601. and comparing the first rotating speed change value with a preset change value threshold value.
602. And if the first rotating speed change value is greater than or equal to the change value threshold, acquiring a preset reference noise value corresponding to the current motor rotating speed in the motor rotating speeds and the current noise value of the air conditioner.
If the first rotating speed change value is larger than or equal to the change value threshold value, the first rotating speed change value is large, and the change of the air resistance is large. In line with the above-described situation, there are two possible causes of the rotation speed variation: (a) The fresh air filter screen generates position change, so that air in the fresh air duct is not blocked by the fresh air filter screen, and the load of the fresh air motor changes, so that the rotating speed changes; (b) The user controls the air conditioner, and changes the rotating speed of the fresh air motor. In order to determine the reason causing the rotation speed change from (a) and (b), the noise condition of the air conditioner can be obtained and judged according to the noise condition.
Specifically, the actual noise of the air conditioner, that is, the current noise value may be compared with a preset reference noise value corresponding to the current motor rotation speed. If the noise difference value between the current noise value and the preset reference noise value is larger than or equal to the conventional fluctuation value of the noise of the air conditioner, it is indicated that other noise sources exist in the air conditioner besides the fresh air motor, and the noise sources may be wind-driven noise generated by fresh air in a fresh air duct when the fresh air filter screen is not correctly installed. And if the noise difference value between the current noise value and the preset reference noise value is smaller than the conventional fluctuation difference value, the fact that only one noise source of the fresh air motor exists in the air conditioner is indicated.
Each noise value in the embodiments of the present application may be one of a variety of noise estimates. For example, the current noise value and the preset reference noise value may be a maximum decibel value of noise on a frequency spectrum, i.e., a volume of noise.
The embodiment of the present application does not limit the method for obtaining the current noise value. For example, the audio data of the air conditioner may be first acquired, then the audio data is analyzed through a processing chip built in the air conditioner or a cloud server in communication connection with the air conditioner to obtain spectrum data, and then the current noise value is obtained according to the spectrum data.
603. And if the noise difference value between the current noise value and the preset reference noise value is greater than or equal to a preset difference threshold value, judging that the position of a fresh air filter screen in the air conditioner is changed.
The difference threshold is a threshold for evaluating the magnitude of the difference between the current noise and the preset reference noise value, and for example, a regular fluctuation value of the air conditioner noise may be used as the difference threshold. If the noise difference value between the current noise value and the preset reference noise value is greater than or equal to the difference threshold value, it is indicated that the noise difference value between the current noise value and the preset reference noise value is greater than or equal to the conventional fluctuation value of the noise of the air conditioner, so that other noise sources exist in the air conditioner besides the fresh air motor, and the noise sources may be wind-driven noise generated by fresh air in the fresh air duct when the fresh air filter screen is not correctly installed. At the moment, the position change of the fresh air filter screen can be judged by combining the comparison result between the first rotating speed change value and the change value threshold value.
In some embodiments, after the fresh air motor does not work for a long time, whether an alarm needs to be given according to the air quality is judged, and a user is prompted to start the function of the fresh air motor so as to update the indoor air. Referring to fig. 7, at this time, if the position of the fresh air filter screen changes, the operation of the fresh air motor is stopped to prevent the fresh air motor from hurting the user during operation, and the method further includes:
701. and acquiring the first time when the fresh air motor stops working.
The first time is the time when the fresh air motor stops working. If the fresh air motor stops working at the time of 1. Specifically, the first time may be obtained through a clock built in the air conditioner, and for the air conditioner provided with the network module, the network time may also be obtained through the network module to obtain the first time.
702. And detecting the quality of the air to obtain an air pollution value, and acquiring second time for detecting the quality of the air.
The air pollution value is a pollution value of indoor air, and can be one of various indexes for evaluating air quality, and the higher the air pollution value is, the higher the pollutant content in the air is, the worse the air quality is. For example, a preset air quality detection module detects the PM2.5 value of the indoor air, and the obtained PM2.5 value is used as the air pollution value.
The second time refers to a time when the air pollution value is detected. If the air quality is detected at time 1.
703. And if the air pollution value is greater than or equal to a preset air pollution reference value, and the time difference between the second time and the first time is greater than or equal to a preset time threshold value, giving an alarm.
The air pollution reference value is a preset value for evaluating the air pollution value. Specifically, the average pollution value of the outdoor air may be used as the air pollution reference value. If the air pollution value is greater than or equal to the air pollution reference value, it indicates that the pollutant content in the air is higher than the normal pollutant content, and the indoor air may have an influence on the physical health of the user.
The time threshold is a threshold used for evaluating the length of the stop working time of the fresh air motor. If the time difference between the second time and the first time is larger than or equal to the time threshold, the fresh air motor does not work for a long time, the probability that the user stretches the hand into the air conditioner is low, and the hand of the user cannot be injured even if the fresh air motor is started at the moment. Therefore, if the air pollution value is greater than or equal to the air pollution reference value, the user needs to be reminded to restart the fresh air motor, and the specific reminding method may refer to the method in step 402A.
The control flow of the new wind turbine provided in the application is simply introduced below, wherein the reason assumption that the new wind filter screen generates the position change is that the user takes out the new wind filter screen:
(A) Presetting corresponding current threshold I of fresh air motor under different windshields 0 Threshold value N of variation value corresponding to different windshields 1 Rotating speed difference value threshold N corresponding to different windshields of air supply fan 2 。
(B) The air conditioner is started to operate and the fresh air motor is started.
(C) If the starting current I of the fresh air motor is detected 1 ≥I 0 If the fresh air motor is in the no-load state, the fresh air filter screen is not correctly installed, and the fresh air cannot be effectively filtered, so that the fresh air is closed and an alarm prompt is given; if the starting current I 1 <I 0 If the fresh air filter screen is in a normal state, the following steps are executed.
(D) When the rotating speed of the air supply fan reaches a stable state, calculating a current rotating speed of the air supply fan and a second rotating speed change value delta N between the current rotating speed of the air supply fan and the historical rotating speed of the air supply fan before the T duration 2 . If Δ N 2 ≥N 2 If the historical instruction received by the air conditioner does not include the rotating speed control instruction of the air supply fan within the time length of T, the front panel of the indoor unit is opened; if the condition is not met, the rotating speed of the air supply fan is repeatedly calculated;
(E) If the front panel of the indoor unit is opened, the probability that the user draws out the fresh air filter screen is increased, and fresh air motor protection judgment needs to be carried out. When the fresh air is usedAfter the motor rotating speed reaches the stable state, calculating the current motor rotating speed of the fresh air motor and a first rotating speed change value delta N between the historical motor rotating speeds before the T duration 1 . If Δ N 1 ≥N 1 If the historical instruction received by the air conditioner within the time length of T does not include the rotating speed control instruction of the fresh air motor, the fresh air filter screen is extracted, the fresh air is closed, and an alarm prompt is given; if the condition is not met, the rotation speed of the fresh air motor is repeatedly calculated.
In order to better implement the fresh air motor control method in the embodiment of the present application, on the basis of the fresh air motor control method, an embodiment of the present application further provides a fresh air motor control device, as shown in fig. 8, which is a schematic structural diagram of an embodiment of the fresh air motor control device in the embodiment of the present application, and the fresh air motor control device 800 includes:
an obtaining unit 801, configured to obtain a motor speed of a fresh air motor in an air conditioner;
a determining unit 802, configured to determine whether a position of a fresh air filter in the air conditioner changes according to a first rotation speed change value of the motor rotation speed;
the control unit 803 is used for stopping the work of the fresh air motor if the fresh air filter screen generates position change, so as to avoid clamping the user when the fresh air motor works.
In a possible implementation manner, the determining unit 802 is further configured to:
comparing the first rotating speed change value with a preset change value threshold value;
if the first rotating speed change value is larger than or equal to the change value threshold value, acquiring a historical instruction of the air conditioner;
and if the historical instruction does not contain a rotating speed control instruction for the fresh air motor, judging that the position of a fresh air filter screen in the air conditioner is changed.
In a possible implementation manner, the determining unit 802 is further configured to:
comparing the first rotating speed change value with a preset change value threshold value;
if the first rotating speed change value is larger than or equal to the change value threshold, acquiring a preset reference noise value corresponding to the current motor rotating speed in the motor rotating speeds and a current noise value of the air conditioner;
and if the noise difference value between the current noise value and the preset reference noise value is greater than or equal to a preset difference threshold value, judging that the position of a fresh air filter screen in the air conditioner changes.
In a possible implementation manner, the fresh air motor control device 800 further includes a front panel judgment unit 804, and the front panel judgment unit 804 is configured to:
acquiring a first fan rotating speed of an air supply fan in the air conditioner;
judging whether a front panel of an indoor unit of the air conditioner is opened or not according to a second rotating speed change value of the rotating speed of the first fan;
and if the front panel of the indoor unit is opened, executing the step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
In a possible implementation manner, the fresh air motor control device 800 further includes a current determination unit 805, and the current determination unit 805 is configured to:
acquiring the starting current of the fresh air motor;
if the starting current is larger than a preset current threshold value, the fresh air motor is closed, and an alarm is given out when the filter screen is installed abnormally;
and if the starting current is less than or equal to a preset current threshold value, executing a step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
In one possible implementation manner, the fresh air motor control device 800 further includes a sterilizing unit 806, and the sterilizing unit 806 is configured to:
starting a sterilization device preset in the air conditioner, and reducing the wind level of the air conditioner, wherein the sterilization device comprises a bactericidal lamp;
acquiring a second fan rotating speed of an air supply fan in the air conditioner;
judging whether a front panel of an indoor unit of the air conditioner is closed or not according to the rotating speed of the second fan;
and if the front panel of the indoor unit is closed, closing the sterilizing device, starting the fresh air motor, and restoring the wind shield to the original wind shield before reduction.
In a possible implementation manner, the fresh air motor control apparatus 800 further includes an alarm unit 807, and the alarm unit 807 is configured to:
acquiring first time when the fresh air motor stops working;
detecting the quality of the air to obtain an air pollution value, and acquiring second time for detecting the quality of the air;
and if the air pollution value is greater than or equal to a preset air pollution reference value, and the time difference between the second time and the first time is greater than or equal to a preset time threshold value, giving an alarm.
In a specific implementation, the above units may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and the specific implementation of the above units may refer to the foregoing method embodiments, which are not described herein again.
Because the fresh air motor control device can execute the steps in the fresh air motor control method in any embodiment of the application, the beneficial effects that the fresh air motor control method can realize in any embodiment of the application can be realized, and the steps are detailed in the description above and are not repeated herein.
In addition, in order to better implement the fresh air motor control method in the embodiment of the present application, based on the fresh air motor control method, the embodiment of the present application further provides an air conditioner, referring to fig. 9, fig. 9 shows a schematic structural diagram of the air conditioner in the embodiment of the present application, specifically, the air conditioner provided in the embodiment of the present application includes a processor 901, and the processor 901 is configured to implement each step of the fresh air motor control method in any embodiment when executing a computer program stored in a memory 902; alternatively, the processor 901 is configured to implement the functions of the units in the corresponding embodiment of fig. 8 when executing the computer program stored in the memory 902.
Illustratively, a computer program may be partitioned into one or more modules/units, which are stored in the memory 902 and executed by the processor 901 to implement the embodiments of the present application. One or more modules/units may be a series of computer program instruction segments capable of performing certain functions, the instruction segments being used to describe the execution of a computer program in a computer device.
The air conditioner may include, but is not limited to, a processor 901, a memory 902. Those skilled in the art will appreciate that the illustration is merely an example of an air conditioner, and does not constitute a limitation of the air conditioner, and may include more or less components than those illustrated, or some components may be combined, or different components, for example, the air conditioner may further include an input and output device, a network access device, a bus, etc., and the processor 901, the memory 902, the input and output device, the network access device, etc., are connected through the bus.
The Processor 901 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the air conditioner and connected to the various parts of the overall air conditioner by various interfaces and lines.
The memory 902 may be used to store computer programs and/or modules, and the processor 901 implements various functions of the computer device by running or executing the computer programs and/or modules stored in the memory 902 and invoking data stored in the memory 902. The memory 902 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, video data, etc.) created according to the use of the air conditioner, etc. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the fresh air motor control device, the air conditioner and the corresponding units thereof described above may refer to the description of the fresh air motor control method in any embodiment, and are not described herein again in detail.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions, or by instructions controlling associated hardware, which may be stored in a computer-readable storage medium and loaded and executed by a processor.
Therefore, the embodiment of the present application provides a computer-readable storage medium, where a plurality of instructions are stored, where the instructions can be loaded by a processor to execute the steps in the fresh air motor control method in any embodiment of the present application, and specific operations may refer to descriptions of the fresh air motor control method in any embodiment, and are not described herein again.
Wherein the computer-readable storage medium may include: a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, and the like.
Because the instructions stored in the computer-readable storage medium can execute the steps in the fresh air motor control method in any embodiment of the present application, the beneficial effects that can be achieved by the fresh air motor control method in any embodiment of the present application can be achieved, which are described in detail in the foregoing description and will not be repeated herein.
The method, the device, the storage medium and the air conditioner for controlling the fresh air motor provided by the embodiment of the application are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the application, and the description of the embodiment is only used for helping to understand the method and the core idea of the application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (9)

1. A control method for a fresh air motor is characterized by comprising the following steps:
acquiring the motor rotating speed of a fresh air motor in the air conditioner;
judging whether a fresh air filter screen in the air conditioner generates position change or not according to a first rotating speed change value of the rotating speed of the motor;
if the fresh air filter screen generates position change, stopping the working of the fresh air motor to avoid clamping a user when the fresh air motor works;
according to the first rotational speed change value of motor speed, judge whether fresh air filter screen produces the position change in the air conditioner, include:
comparing the first rotating speed change value with a preset change value threshold;
if the first rotating speed variation value is larger than or equal to the variation value threshold, acquiring a preset reference noise value corresponding to the current motor rotating speed in the motor rotating speeds and the current noise value of the air conditioner;
and if the noise difference value between the current noise value and the preset reference noise value is greater than or equal to a preset difference threshold value, judging that the position of a fresh air filter screen in the air conditioner changes.
2. The method for controlling the fresh air motor according to claim 1, wherein the step of determining whether a position of a fresh air filter screen in the air conditioner changes according to a first rotation speed change value of the motor rotation speed comprises:
comparing the first rotating speed change value with a preset change value threshold;
if the first rotating speed change value is larger than or equal to the change value threshold, acquiring a historical instruction of the air conditioner;
and if the historical instruction does not contain a rotating speed control instruction for the fresh air motor, judging that the position of a fresh air filter screen in the air conditioner is changed.
3. The method for controlling the fresh air motor according to claim 1, wherein before the obtaining of the fan speed of the fresh air motor in the air conditioner, the method further comprises:
acquiring a first fan rotating speed of an air supply fan in the air conditioner;
judging whether a front panel of an indoor unit of the air conditioner is opened or not according to a second rotating speed change value of the rotating speed of the first fan;
and if the front panel of the indoor unit is opened, executing the step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
4. The method as claimed in claim 1, wherein before obtaining the fan speed of the fresh air motor in the air conditioner, the method further comprises:
acquiring the starting current of the fresh air motor;
if the starting current is larger than a preset current threshold value, the fresh air motor is closed, and abnormal alarm of filter screen installation is given;
and if the starting current is less than or equal to a preset current threshold value, executing a step of acquiring the motor rotating speed of a fresh air motor in the air conditioner.
5. The method according to claim 1, wherein if the fresh air filter screen changes its position, the operation of the fresh air motor is stopped to avoid hurting the user when the fresh air motor is operating, and the method further comprises:
starting a sterilizing device preset in the air conditioner, and reducing the wind shield of the air conditioner, wherein the sterilizing device comprises a sterilizing lamp;
acquiring a second fan rotating speed of an air supply fan in the air conditioner;
judging whether a front panel of an indoor unit of the air conditioner is closed or not according to the rotating speed of the second fan;
and if the front panel of the indoor unit is closed, closing the sterilizing device, starting the fresh air motor, and restoring the wind shield to the initial wind shield before reduction.
6. The method according to any one of claims 1 to 5, wherein if the fresh air filter screen changes its position, the operation of the fresh air motor is stopped to avoid the user being injured by the fresh air motor during its operation, and the method further comprises:
acquiring first time when the fresh air motor stops working;
detecting the quality of the air to obtain an air pollution value, and acquiring a second time when the quality of the air is detected;
and if the air pollution value is greater than or equal to a preset air pollution reference value, and the time difference between the second time and the first time is greater than or equal to a preset time threshold value, giving an alarm.
7. The utility model provides a new trend motor control device which characterized in that, new trend motor control device includes:
the acquiring unit is used for acquiring the motor rotating speed of a fresh air motor in the air conditioner;
the judging unit is used for judging whether a fresh air filter screen in the air conditioner generates position change or not according to a first rotating speed change value of the rotating speed of the motor;
the control unit is used for stopping the work of the fresh air motor if the position of the fresh air filter screen changes so as to prevent the fresh air motor from clamping and hurting a user when the fresh air motor works;
the judging unit is further configured to:
comparing the first rotating speed change value with a preset change value threshold value;
if the first rotating speed change value is larger than or equal to the change value threshold, acquiring a preset reference noise value corresponding to the current motor rotating speed in the motor rotating speeds and a current noise value of the air conditioner;
and if the noise difference value between the current noise value and the preset reference noise value is greater than or equal to a preset difference threshold value, judging that the position of a fresh air filter screen in the air conditioner changes.
8. An air conditioner, characterized in that, it comprises a processor and a memory, the memory stores a computer program, the processor executes the fresh air motor control method according to any one of claims 1 to 6 when calling the computer program in the memory.
9. A readable storage medium, having a computer program stored thereon, where the computer program is loaded by a processor to perform the steps of the fresh air motor control method according to any one of claims 1 to 6.
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