CN110887175B - Control method of air conditioner and air conditioner - Google Patents
Control method of air conditioner and air conditioner Download PDFInfo
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- CN110887175B CN110887175B CN201811053105.8A CN201811053105A CN110887175B CN 110887175 B CN110887175 B CN 110887175B CN 201811053105 A CN201811053105 A CN 201811053105A CN 110887175 B CN110887175 B CN 110887175B
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
Abstract
The invention belongs to the technical field of air conditioners, and particularly provides a control method of an air conditioner and the air conditioner. The invention aims to solve the problem of poor user experience of the existing compressor frequency control method of the air conditioner. To this end, the control method of the air conditioner of the present invention includes: acquiring the surface temperature of a human body and the indoor environment temperature; comparing the surface temperature of the human body with the indoor environment temperature; based on the comparison result, a frequency of a compressor of the air conditioner is selectively adjusted. Through the control mode, the control method of the air conditioner can adjust the frequency of the compressor according to the comparison result of the surface temperature of the human body and the indoor environment temperature, so that a user can always be in a comfortable environment, the condition that the human body is uncomfortable due to overhigh or overlow air supply temperature caused by overhigh or overlow frequency of the compressor is avoided, and the use experience of the user is improved.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a control method of an air conditioner and the air conditioner.
Background
An air conditioner is a device capable of cooling/heating a room, and for example, in hot summer, the air conditioner may lower the room temperature by cooling and blowing air, thereby making people feel comfortable.
In the conventional air conditioner, after a user sets a target temperature, the air conditioner is automatically operated to gradually increase/decrease an indoor ambient temperature to the target temperature and maintain the target temperature, and an operation frequency of the compressor is generally changed based on a difference between the indoor temperature and the target temperature in a cooling/heating process of the air conditioner. However, the control method for changing the frequency based on the difference between the indoor temperature and the target temperature only considers the cooling efficiency and does not consider the user experience, and when the frequency of the compressor is high and the body temperature of the user is low, the human body is easily uncomfortable due to the low supply air temperature, for example, a child or an old with a weak constitution is always easily sick in the environment of the second supply air temperature. When the frequency of the compressor is low and the body temperature of a user is high, the user needs to be cooled quickly, the body temperature of the user cannot be lowered to a proper temperature quickly due to overhigh air supply temperature, and the user experience is seriously influenced.
Therefore, there is a need in the art for a new control method of an air conditioner to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above-mentioned problem in the prior art, that is, to solve the problem of poor user experience in the compressor frequency control method of the existing air conditioner, the present invention provides a control method of an air conditioner, wherein the control method includes:
acquiring the surface temperature of a human body and the indoor environment temperature;
comparing the human body surface temperature with the indoor environment temperature;
based on the comparison result, a frequency of a compressor of the air conditioner is selectively adjusted.
In a preferred embodiment of the above method for controlling an air conditioner, the step of "selectively adjusting the frequency of the compressor of the air conditioner based on the comparison result" further includes:
when the difference value between the human body surface temperature and the indoor environment temperature is larger than a first temperature threshold value, further comparing the set temperature with the indoor environment temperature;
selectively adjusting a frequency of the compressor based on the comparison.
In a preferred embodiment of the above method for controlling an air conditioner, the step of "selectively adjusting the frequency of the compressor based on the comparison result" further includes:
and when the difference value between the set temperature and the indoor environment temperature is smaller than a second temperature threshold value, adjusting the frequency of the compressor according to an adjusting proportion.
In a preferred embodiment of the above method for controlling an air conditioner, the step of "selectively adjusting the frequency of the compressor based on the comparison result" further includes:
and when the difference value between the set temperature and the indoor environment temperature is greater than or equal to a third temperature threshold value, controlling the compressor to reduce the set frequency or operate at the current frequency.
In a preferred embodiment of the above method for controlling an air conditioner, the step of "when the difference between the surface temperature of the human body and the indoor ambient temperature is greater than a first temperature threshold, further comparing the set temperature with the indoor ambient temperature" further includes:
when the difference value between the human body surface temperature and the indoor environment temperature is larger than a first temperature threshold value, further comparing the outdoor environment temperature with the indoor environment temperature;
selectively further comparing the set temperature with the indoor environment temperature based on the comparison result.
In a preferred embodiment of the above method for controlling an air conditioner, the step of "selectively further comparing the set temperature with the indoor ambient temperature based on the comparison result" further includes:
and when the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a fourth temperature threshold value, further comparing the set temperature with the indoor environment temperature.
In a preferred embodiment of the control method of the air conditioner, the adjustment ratio is determined based on a difference between the surface temperature of the human body and the indoor ambient temperature, a difference between the outdoor ambient temperature and the indoor ambient temperature, a difference between the set temperature and the indoor ambient temperature, and/or a distance between the air conditioner and the human body;
wherein, the distance between the air conditioner and the human body is obtained by the air conditioner.
In a preferred embodiment of the above method for controlling an air conditioner, before the step of "selectively adjusting the frequency of the compressor of the air conditioner based on the comparison result", the method further includes:
identifying human facial features;
obtaining an age of the person based on the human facial features;
judging the sizes of the age and a first age threshold value and/or a second age threshold value;
and controlling the air conditioner to enter a set air supply mode based on the judgment result.
In a preferred embodiment of the above method for controlling an air conditioner, the step of "controlling the air conditioner to enter a set air blowing mode based on the determination result" further includes:
when the age is larger than or equal to a first age threshold value, controlling the air conditioner to enter an air supply automatic avoiding mode;
when the age is smaller than the first age threshold and larger than a second age threshold, controlling the air conditioner to enter an air supply automatic following mode;
and when the age is smaller than or equal to the second age threshold value, controlling the air conditioner to enter an air supply automatic avoiding mode.
The present invention also provides an air conditioner including a controller configured to be able to perform the control method of the air conditioner of any one of the above-described preferred embodiments.
As can be understood by those skilled in the art, in a preferred embodiment of the present invention, a method for controlling an air conditioner includes: acquiring the surface temperature of a human body and the indoor environment temperature; comparing the surface temperature of the human body with the indoor environment temperature; based on the comparison result, a frequency of a compressor of the air conditioner is selectively adjusted.
Through the control mode, the control method of the air conditioner can adjust the frequency of the compressor according to the comparison result of the surface temperature of the human body and the indoor environment temperature, so that a user can always be in a comfortable environment, the condition that the human body is uncomfortable due to overhigh or overlow air supply temperature caused by overhigh or overlow frequency of the compressor is avoided, and the use experience of the user is improved.
Specifically, when the difference between the surface temperature of the human body and the indoor environment temperature is greater than the first temperature threshold, the difference between the outdoor environment temperature and the indoor environment temperature is greater than the fourth threshold, and the difference between the set temperature and the indoor environment temperature is less than the second temperature threshold, it indicates that the body temperature of the user is higher than both the indoor temperature and the outdoor temperature at this time, and the indoor environment temperature does not drop to the set temperature, that is, the user feels hot at this time, and the body temperature of the user cannot drop to an appropriate temperature even if the current indoor environment temperature is too high, so that the air conditioner is required to cool to reduce the environment temperature, and the user feels comfortable. And the frequency of the compressor is adjusted according to the adjusting proportion, the adjusting proportion is based on the difference value between the surface temperature of the human body and the indoor environment temperature, the difference value between the outdoor environment temperature and the indoor environment temperature, the difference value between the set temperature and the indoor environment temperature and the control mode determined by the distance between the air conditioner and the human body, so that the air conditioner can further determine a proper adjusting proportion based on the multivariate parameters such as the surface temperature of the human body, the indoor environment temperature, the outdoor environment temperature, the set temperature, the distance between the human body and the air conditioner and the relation among the parameters, thereby adjusting the frequency of the compressor based on the adjusting proportion, matching the air supply temperature with the current use environment and the human body state, further simultaneously considering the refrigeration efficiency and the user experience in the working process of the air conditioner, and achieving the balance of the refrigeration efficiency and the user experience.
Drawings
The control method of the air conditioner and the air conditioner according to the present invention will be described with reference to the accompanying drawings in conjunction with a cooling mode of the air conditioner. In the drawings:
fig. 1 is a flowchart of a control method of an air conditioner of the present invention;
fig. 2 is a control logic diagram of an air conditioner in accordance with an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described in conjunction with the cooling mode, this is not limitative, and the control method of the present invention can obviously be applied to other functional modes of the air conditioner, such as a heating mode, an air blowing mode, a dehumidification mode, and the like.
First, referring to fig. 1, a control method of an air conditioner of the present invention will be described. Fig. 1 is a flowchart illustrating a control method of an air conditioner according to the present invention.
As shown in fig. 1, the problem of poor user experience in the existing compressor frequency control method of the air conditioner is solved, and the control method of the air conditioner mainly comprises the following steps:
s100, obtain human surface temperature and indoor ambient temperature, for example, can gather the temperature on human surface through the infrared sensor who sets up on the air conditioner, acquire indoor ambient temperature through indoor ambient temperature sensor to this infrared sensor and indoor ambient temperature sensor all are connected with the controller of air conditioner, so that can in time transmit the controller of air conditioner with the indoor ambient temperature who gathers. Preferably, the human body surface temperature is preferably the human body face temperature, because the human body face is generally exposed and the human body face temperature is also more reflective of the overall comfort condition of the human body.
S200, comparing the human body surface temperature with the indoor environment temperature, for example, directly comparing the human body surface temperature with the indoor environment temperature or calculating the difference between the human body surface temperature and the indoor environment temperature by a controller of the air conditioner and comparing the difference with a set threshold;
and S300, selectively adjusting the frequency of a compressor of the air conditioner based on the comparison result, for example, when the difference between the surface temperature of the human body and the indoor environment temperature is greater than a first temperature threshold value, which indicates that the body temperature of the user is higher, that is, the user feels hotter, and the air conditioner needs to refrigerate to reduce the environment temperature. At the moment, the temperature of the refrigerant circulating in the air conditioner is changed by changing the frequency of the compressor, so that the change of the temperature of the refrigerant affects the air supply temperature, the air supply temperature can not cause discomfort of a human body, and meanwhile, the ambient temperature around a user can be reduced, and the comfort is brought to the user.
It can be seen from the above description that the control method of the air conditioner of the present invention can adjust the frequency of the compressor according to the comparison result between the surface temperature of the human body and the indoor environment temperature, so that the user can be always in a comfortable environment, the occurrence of human body discomfort caused by too high or too low air supply temperature due to too high or too low frequency of the compressor is avoided, and the user experience is improved.
It should be noted that, in addition to the manner of setting the infrared sensor on the air conditioner to collect the temperature of the surface of the human body, those skilled in the art can flexibly set the collection manner of the surface temperature of the human body in practical application as long as the surface temperature of the human body can be obtained. For example, a temperature sensor communicatively connected to a controller of an air conditioner is worn on a human body to collect a surface temperature of the human body. Likewise, the specific installation position and form of the indoor environment temperature sensor are not limited, and the indoor environment temperature sensor can be installed on the air conditioner, and also can be installed on an indoor wall or other electric equipment as long as the indoor environment temperature sensor can collect the indoor environment temperature and transmit the indoor environment temperature to the controller of the air conditioner after collecting the indoor environment temperature. In addition, the surface temperature of the human body can also be the temperature of other exposed positions of the human body, such as hands, neck and/or arms, and the like.
In a preferred embodiment, step S300 further comprises:
when the difference value between the surface temperature of the human body and the indoor environment temperature is greater than a first temperature threshold value and the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a fourth temperature threshold value, further comparing the set temperature with the indoor environment temperature; based on the comparison, the frequency of the compressor is selectively adjusted. Specifically, the method comprises the following steps: and when the difference value between the surface temperature of the human body and the indoor environment temperature is greater than a first temperature threshold value, the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a fourth temperature threshold value, and the difference value between the set temperature and the indoor environment temperature is less than a second temperature threshold value, adjusting the frequency of the compressor according to the adjusting proportion. And when the difference value between the surface temperature of the human body and the indoor environment temperature is greater than a first temperature threshold value, the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a fourth temperature threshold value, and the difference value between the set temperature and the indoor environment temperature is greater than or equal to a third temperature threshold value, controlling the compressor to reduce the set frequency or operate at the current frequency.
For example, the first temperature threshold and the fourth temperature threshold may be 2 ℃, 3 ℃, 4 ℃, 5 ℃ and the like, and the outdoor ambient temperature may be obtained by a temperature sensor connected to the controller, which is disposed in the outdoor unit of the air conditioner, in the same or similar manner as the indoor ambient temperature. When the difference between the surface temperature of the human body and the indoor environment temperature is greater than the first temperature threshold, the outdoor temperature is acquired, the outdoor environment temperature and the indoor environment temperature are compared, and the outdoor environment temperature and the indoor environment temperature can be directly compared, or the difference between the outdoor environment temperature and the indoor environment temperature can be calculated and compared with the set threshold, and the set temperature and the indoor environment temperature are further selectively compared based on the comparison result.
For example, the second temperature threshold may be 0 or a value less than 0, such as-1 ℃ or-3 ℃, etc., the third temperature threshold may be 3 ℃ or 5 ℃, and the set temperature may be directly obtained by the controller. When the difference value between the surface temperature of the human body and the indoor environment temperature is larger than the first temperature threshold value and the difference value between the outdoor environment temperature and the indoor environment temperature is larger than the fourth temperature threshold value, the set temperature and the indoor environment temperature are further compared, and the frequency of the compressor is controlled based on the comparison result, namely the air outlet temperature is controlled.
When the difference value between the surface temperature of the human body and the indoor environment temperature is greater than the first temperature threshold value and the difference value between the outdoor environment temperature and the indoor environment temperature is greater than the fourth temperature threshold value, the difference value between the surface temperature of the human body and the indoor environment temperature is higher than the first temperature threshold value, the air conditioner is required to adjust the air supply speed in a targeted mode to reduce the environment temperature around the human body, the set temperature and the indoor environment temperature are further compared, when the difference value between the set temperature and the indoor environment temperature is smaller than the second temperature threshold value, the difference value between the set temperature and the indoor environment temperature proves that the indoor temperature is higher than the set temperature at the moment, the indoor temperature does not reach the proper temperature, and the air supply temperature is required to be adjusted in a targeted mode to reduce the environment temperature around the human body. At the moment, the frequency of the compressor is adjusted according to the adjusting proportion on the basis of the frequency of the current compressor, so that the frequency of the compressor, namely the air supply temperature, which is suitable for the current indoor environment and the human body can be provided, and the refrigeration effect and the user experience are considered at the same time. When the difference between the surface temperature of the human body and the indoor environment temperature is greater than the first temperature threshold, the difference between the outdoor environment temperature and the indoor environment temperature is greater than the fourth temperature threshold, and the difference between the set temperature and the indoor environment temperature is greater than or equal to the third temperature threshold, it is proved that although the human body temperature is higher than both the indoor environment temperature and the outdoor environment temperature at the moment, the indoor environment temperature is lower than the set temperature at the moment, the temperature is enough for the human body to enable the human body temperature to rapidly decrease or possibly enable the human body to be uncomfortable, and at the moment, the ambient temperature around the human body does not need to be adjusted in a targeted manner, so that the frequency of the compressor does not need to be changed or controlled to decrease the set frequency, so that the uncomfortable feeling possibly brought to the human body is eliminated, the energy consumption of the air conditioner is reduced, and meanwhile, the user experience is improved.
In addition, on the basis that the difference value between the surface temperature of the human body and the indoor environment temperature is compared with the first temperature threshold value, the judgment condition that the difference value between the outdoor environment temperature and the indoor environment temperature is compared with the fourth temperature threshold value is added, the accuracy of judging whether the frequency of the compressor is regulated by the air conditioner can be improved, namely, the air conditioner is prevented from being judged by mistake, when the air conditioner obtains the deviation of the surface temperature of the human body (for example, when an infrared sensor used for obtaining the surface temperature of the human body breaks down), the supplementary judgment can be carried out through the outdoor environment temperature and the indoor environment temperature, so that the air conditioner can not frequently regulate the air supply temperature due to the fact that the deviation of the surface temperature of the human body occurs, excessive energy consumption of the air conditioner due to the misjudgment is avoided, and the service life of the air conditioner is prolonged.
It should be noted that, the setting manners of the first temperature threshold, the second temperature threshold, the third temperature threshold, and the fourth temperature threshold are exemplary, and besides the above values, those skilled in the art may also adjust the setting manners based on specific application scenarios. In addition, the outdoor temperature sensor can also be obtained through an outdoor temperature sensor which is arranged on an outdoor wall and is in communication connection with the controller of the air conditioner, and of course, the outdoor temperature sensor can also be obtained in other modes as long as the outdoor environment temperature can be obtained by the controller of the air conditioner.
In one possible embodiment, the adjustment ratio may be determined based on a difference between a surface temperature of the human body and an indoor ambient temperature, a difference between an outdoor ambient temperature and an indoor ambient temperature, a difference between a set temperature and an indoor ambient temperature, and/or a distance between the air conditioner and the human body. For example, the adjustment ratio may be determined based on equation (1):
in formula (1), V represents the adjustment ratio, a represents the difference between the surface temperature of the human body and the indoor ambient temperature, B represents the difference between the outdoor ambient temperature and the indoor ambient temperature, C represents the difference between the set temperature and the indoor ambient temperature, S represents the distance between the air conditioner and the human body, and α represents the wind speed variation coefficient, such as α ═ 0.2. The distance S between the air conditioner and the human body can be obtained based on an infrared sensor, and can also be obtained based on other sensors capable of measuring distance or electrical components, and the sensor can be installed at any position of the air conditioner as long as the installation position can detect the human body.
For example, under the conditions that the difference between the surface temperature of the human body and the indoor environment temperature is greater than the first temperature threshold, the difference between the outdoor environment temperature and the indoor environment temperature is greater than the fourth temperature threshold, and the difference between the set temperature and the indoor environment temperature is less than the second temperature threshold, if a is 3 ℃, B is 4 ℃, C is-3, S is 2m, and α is 0.2, V is calculated to be 1.6. That is, the difference between the indoor temperature and the outdoor temperature is large, the difference between the human body temperature and the indoor temperature is large, and the indoor environment temperature is higher than the set temperature, so that the rapid refrigeration is needed; and the distance of human body distance air conditioner this moment is 2m, and the distance is far away, can suitably reduce the air supply temperature of air conditioner to under the uncomfortable prerequisite of human body, reduce indoor ambient temperature fast, consequently control compressor frequency adjustment this moment is 1.6 times of former compressor frequency, thereby has reduced air supply temperature, has compromise comfort level and refrigeration efficiency. For example, under the same conditions, when a is 2 ℃, B is 4 ℃, C is-1, S is 1m, and α is 0.2, V is calculated to be 0.8. That is to say, although the indoor and outdoor difference in temperature is great, and human body temperature is also great with indoor temperature's difference, and indoor ambient temperature is higher than the settlement temperature, needs quick refrigeration, because the human body is 1m apart from the distance of air conditioner this moment, and the distance is nearer, reduces the air supply temperature of air conditioner and probably can make the human body produce uncomfortable and feel, consequently the frequency adjustment of control compressor this moment is 80% of former frequency, has both saved the energy consumption, makes the air supply temperature of air conditioner can make the human body feel comfortable again on the basis of having guaranteed the refrigeration effect.
Of course, the above formula (1) is just one possible embodiment of the adjustment ratio, and the adjustment of the formula may be performed by those skilled in the art, as long as the adjustment of the formula can make the adjustment of the wind speed based on the calculation result give consideration to the premise of comfort and cooling efficiency. For example, the adjustment ratio can also be calculated using the following equation (2):
the meaning represented by the letter in formula (2) is the same as that in formula (1), and is not described herein again.
In one possible embodiment, the set frequency may be determined based on a corresponding relationship between the difference between the set temperature and the indoor environment temperature and the set frequency, or may be determined based on a formula or other manners. For example, based on experiments, the worker obtains a comparison table of the difference between the set temperature and the indoor environment temperature and the set frequency, stores the comparison table in a storage unit of the air conditioner, and directly calls the comparison table by the controller.
For example, under the conditions that the difference between the surface temperature of the human body and the indoor environment temperature is greater than the first temperature threshold, the difference between the outdoor environment temperature and the indoor environment temperature is greater than the fourth temperature threshold, and the difference between the set temperature and the indoor environment temperature is greater than or equal to the third temperature threshold, although the indoor and outdoor temperature differences are greater, the difference between the human body temperature and the indoor temperature is greater, the indoor environment temperature is lower than the set temperature, and the indoor environment temperature is likely to cause discomfort to the human body, so that the air supply temperature of the air conditioner can be increased, and the human body can feel comfortable without causing discomfort to the human body. At the moment, the controller obtains the corresponding set frequency of 80% under the difference value between the set temperature and the indoor environment temperature by checking the comparison table, therefore, the controller controls the frequency of the compressor to be adjusted to 80% of the frequency of the original compressor, the air supply temperature is improved, the comfort degree is improved, and meanwhile, the energy consumption is saved.
In another preferred embodiment, before step S300, the control method further includes:
identifying human facial features; obtaining an age of the person based on the facial features of the person; judging the sizes of the age and the first age threshold value and/or the second age threshold value; and controlling the air conditioner to enter a set air supply mode based on the judgment result. Specifically, when the age is greater than or equal to a first age threshold, controlling the air conditioner to enter an air supply automatic avoiding mode; when the age is smaller than the first age threshold and larger than the second age threshold, controlling the air conditioner to enter an air supply automatic following mode; and when the age is smaller than or equal to the second age threshold value, controlling the air conditioner to enter an air supply automatic avoiding mode.
For example, the first age threshold may be 60 years old, the second age threshold may be 16 years old, the image of the human face may be collected by an image collecting device (such as a camera, a video camera, etc.) for identifying the facial features of the human body, and then the data of the facial image of the human body is transmitted to a controller of the air conditioner for analysis processing, so as to obtain the age of the human body according to the facial features of the human body (such as facial color, hair color, and/or wrinkle length, etc.), and then the air conditioner enters the air supply automatic avoiding mode/air supply automatic following mode according to the age of the human body. The first age threshold and the second age threshold may divide the age of the person into three segments, where the first segment (i.e., the age of the person is greater than or equal to the first age threshold) is an elderly person, the second segment (i.e., the age of the person is less than the first age threshold and greater than the second age threshold) is a young or middle-aged person, and the third segment (i.e., the age of the person is less than or equal to the second age threshold) is a child. Because the physique of old people and children is slightly weak, the air conditioner is suitable for adopting an air supply automatic avoiding mode, namely the air conditioner can not blow directly towards places with the old people and the children, and the physique of young and middle-aged people is stronger, namely the air conditioner can intensively supply air towards the places with the young and middle-aged people. The realization of the automatic air supply avoiding mode and the automatic air supply following mode of the air conditioner can be realized by depending on the vertical air deflector and the horizontal air deflector in the prior art, and the description is omitted here.
By determining whether the air supply mode of the fan is an automatic avoiding mode or an automatic following mode before adjusting the frequency of the compressor, the control method can automatically select the air supply mode according to the age of a person and can pertinently adjust the frequency of the compressor based on the air supply mode, so that the comfort of a human body is greatly improved, the air conditioner can meet the requirements of all people, and the user experience is further improved.
Of course, the first age threshold and the second age threshold are only exemplary, and those skilled in the art can flexibly set the specific age values of the first age threshold and the second age threshold in practical applications, as long as the age demarcation point determined by the first age threshold and the second age threshold enables the air conditioner to determine whether to enter the air supply automatic avoiding mode or the air supply automatic following mode.
It should be noted that the above-mentioned preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention, and those skilled in the art can modify the above-mentioned embodiments so that they can be adapted to more specific application scenarios without departing from the principle of the present invention.
For example, in an alternative embodiment, the step of controlling the air conditioner to enter the set blowing mode based on human facial features may be omitted, and the frequency of the compressor may be directly controlled based on the difference between the human body surface temperature and the indoor temperature, the difference between the outdoor ambient temperature and the indoor ambient temperature, and the difference between the set temperature and the indoor ambient temperature.
As another example, in another alternative embodiment, either or both of the step of comparing the outdoor ambient temperature with the indoor ambient temperature and the step of comparing the set temperature with the indoor ambient temperature may be omitted, and the frequency of the compressor may be controlled based directly on the remaining steps. For example, when the surface temperature of the human body and the indoor environment temperature are greater than a first temperature threshold value, and the difference between the set temperature and the indoor environment temperature is less than a second temperature threshold value, the air speed of the air supply fan is adjusted according to the adjustment proportion. The first temperature threshold may be 2 ℃, 3 ℃, 4 ℃ and the like, the second temperature threshold may be 0, -1 ℃, 2 ℃ and the like, the adjustment ratio is similar to the above, and the adjustment ratio may be determined based on the difference between the surface temperature of the human body and the indoor environment temperature, the difference between the set temperature and the indoor environment temperature, and/or the distance between the air conditioner and the human body. As can be determined with reference to the following equation (3):
the meaning represented by the letter in formula (3) is the same as that in formula (1), and is not described herein again.
For another example, when the air conditioner enters the automatic air supply avoidance mode or the automatic air supply following mode, the numerical values of the first temperature threshold, the second temperature threshold, the third temperature threshold, and the fourth temperature threshold, and the parameters and/or coefficients in the formula (1) and the comparison table may be the same or different. For example, since the automatic avoidance mode is for elderly people and children, the wind speed variation coefficient α in the formula (1) can be reduced to prevent the adjusted wind speed of the blower fan from being too high to cause discomfort.
A control process of the air conditioner in one possible embodiment of the present invention will be described with reference to fig. 2. Fig. 2 is a control logic diagram of an air conditioner according to an embodiment of the present invention.
As shown in fig. 2, after the air conditioner is turned on, the human facial features are automatically recognized first, and the age N of the person is estimated based on the human facial features. If the person's age N is less than a first age threshold N1And is greater than a second age threshold N2If the person is young or middle-aged, the air conditioner is controlled to enter an air supply automatic following mode; otherwise, if the person's age N is greater than or equal to the first age threshold N1Or the age N of the person is less than or equal to a second age threshold N2If the person is the old or the child, the air conditioner is controlled to enter an air supply automatic avoiding mode. In the process of executing an air supply automatic following mode or an air supply automatic avoiding mode by the air conditioner, the facial temperature T of the human body is obtainedfIndoor ambient temperature TnOutdoor ambient temperature TwAnd a set temperature TsAnd according to the temperature T of the human facefIndoor ambient temperature TnOutdoor ambient temperature TwAnd a set temperature TsJudging whether the condition of automatically adjusting the frequency of the compressor of the air conditioner is met, and when the temperature T of the face of the human body is reachedfTemperature T of indoor environmentnIs greater than or equal to a first temperature threshold TAOutdoor ambient temperature TwTemperature T of indoor environmentnIs greater than or equal to a fourth temperature threshold TBThen, the set temperature T is further determinedsTemperature T of indoor environmentnWhen setting the temperature TsTemperature T of indoor environmentnIs less than a second temperature threshold TCWhen the frequency of the compressor is adjusted, the air conditioner is controlled to automatically adjust the frequency of the compressor according to the adjusting proportion; when setting the temperature TsTemperature T of indoor environmentnIs greater than or equal to a second temperature threshold TCIf so, controlling the air conditioner to reduce the set frequency; if the temperature T of the human facefTemperature T of indoor environmentnIs less than a temperature threshold TAOr outdoor ambient temperatureTwTemperature T of indoor environmentnIs less than a fourth temperature threshold TBWhen the human face temperature T is not obtained, the air conditioner does not automatically adjust the frequency of the compressor and continues to obtain the human face temperature TfIndoor ambient temperature TnAnd outdoor ambient temperature TwAnd a set temperature Ts。
Further, the present invention also provides an air conditioner including a controller configured to be able to perform the control method of the air conditioner described in the above embodiment. The controller may be a control chip disposed in the indoor unit or the outdoor unit, a controller dedicated to perform the method of the present invention, or a functional module or functional unit of a general controller.
Finally, although the present embodiment is described in conjunction with the cooling mode operation of the air conditioner, it is obvious that the present invention can also be applied to other functional modes of the air conditioner, such as a heating mode and an air blowing mode. For example, when the method is applied to the heating mode, the step of selectively adjusting the frequency of the compressor of the air conditioner based on the comparison result includes: when the surface temperature of the human body is lower than the indoor environment temperature and the indoor environment temperature is lower than the outdoor environment temperature, the human body temperature and the indoor temperature are both lower, the air conditioner is required to heat quickly to improve the environment temperature, and the body temperature of a user is increased. At this time, the magnitude of the set temperature is further compared with the magnitude of the indoor environment temperature; when the indoor set temperature is higher than the indoor environment temperature, the frequency of the compressor is adjusted according to the preset adjusting proportion, so that air is supplied to the room at a proper air supply temperature, the comfort level is improved while the heating efficiency is considered, and the overcooling and overheating of the supplied air are avoided. Of course, the above comparison method is only exemplary, and those skilled in the art can flexibly set the comparison method between the surface temperature of the human body and the indoor environment temperature in practical applications. For example, the difference between the surface temperature of the human body and the indoor environment temperature may be compared with a set value, or the ratio between the surface temperature of the human body and the indoor environment temperature may be compared with a set value.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (5)
1. A control method of an air conditioner, characterized in that the control method comprises:
acquiring the surface temperature of a human body and the indoor environment temperature;
comparing the human body surface temperature with the indoor environment temperature;
selectively adjusting a frequency of a compressor of the air conditioner based on the comparison result;
the step of selectively adjusting the frequency of the compressor of the air conditioner based on the comparison result is further
The method comprises the following steps:
when the difference value between the human body surface temperature and the indoor environment temperature is larger than a first temperature threshold value,
further comparing the set temperature with the indoor environment temperature;
selectively adjusting a frequency of the compressor based on the comparison;
"the difference between the surface temperature of the human body and the indoor environment temperature is larger than a first temperature threshold
The step of comparing the set temperature with the indoor environment temperature further comprises
Comprises the following steps:
when the difference value between the human body surface temperature and the indoor environment temperature is larger than a first temperature threshold value,
further comparing the outdoor ambient temperature with the indoor ambient temperature;
based on the comparison result, selectively further comparing the set temperature with the indoor ambient temperature
Size;
selectively further comparing the set temperature with the indoor ambient temperature based on the comparison result
The step of "further comprises:
when the difference between the outdoor ambient temperature and the indoor ambient temperature is greater than a fourth temperature threshold,
further comparing the set temperature with the indoor environment temperature;
the step of selectively adjusting the frequency of the compressor based on the comparison further includes
Comprises the following steps:
when the difference value between the set temperature and the indoor environment temperature is less than a second temperature threshold value
Adjusting the frequency of the compressor according to the adjusting proportion;
the adjustment proportion is based on the difference between the surface temperature of the human body and the indoor environment temperature
The difference between the outdoor ambient temperature and the indoor ambient temperature, the set temperature and the indoor temperature
Determining the relationship between the difference of the ambient temperature and the distance between the air conditioner and the human body;
wherein, the distance between the air conditioner and the human body is obtained by the air conditioner.
2. The control method of an air conditioner according to claim 1, wherein the "base ratio" is
As a result, the step of selectively adjusting the frequency of the compressor further comprises:
when the difference value between the set temperature and the indoor environment temperature is greater than or equal to a third temperature threshold value
And when the frequency is higher than the set frequency, controlling the compressor to reduce the set frequency or operate at the current frequency.
3. The control method of an air conditioner according to claim 1 or 2, wherein the control method is based on
The control being performed before the step of selectively adjusting the frequency of the compressor of the air conditioner as a result of the comparison
The manufacturing method also comprises the following steps:
identifying human facial features;
obtaining an age of the person based on the human facial features;
judging the sizes of the age and a first age threshold value and/or a second age threshold value;
and controlling the air conditioner to enter a set air supply mode based on the judgment result.
4. The control method of an air conditioner according to claim 3, wherein the "based judgment" is
As a result of the interruption, the step of controlling the air conditioner to enter the set blowing mode "further includes:
when the age is greater than or equal to a first age threshold value, controlling the air conditioner to enter air supply
A dynamic avoidance mode;
when the age is less than the first age threshold and greater than a second age threshold, controlling the home
The air conditioner enters an air supply automatic following mode;
when the age is less than or equal to the second age threshold, controlling the air conditioner to enter into the air sending mode
And a wind automatic avoiding mode.
5. An air conditioner, the air conditioner includes the controller, its characterized in that, the controller is furnished with
A control method configured to be able to execute the air conditioner of any one of claims 1 to 4.
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| CN201811053105.8A CN110887175B (en) | 2018-09-10 | 2018-09-10 | Control method of air conditioner and air conditioner |
| PCT/CN2019/098982 WO2020052368A1 (en) | 2018-09-10 | 2019-08-02 | Air conditioner control method and air conditioner |
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| CN201811053105.8A CN110887175B (en) | 2018-09-10 | 2018-09-10 | Control method of air conditioner and air conditioner |
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| CN111895612A (en) * | 2020-07-13 | 2020-11-06 | Tcl空调器(中山)有限公司 | Refrigeration control method and heating control method of air conditioner, air conditioner and storage medium |
| CN113057597B (en) * | 2021-03-25 | 2021-11-16 | 南通市第一人民医院 | Method and system for monitoring physiological state of puerpera in real time in production process |
| CN113819632A (en) * | 2021-08-17 | 2021-12-21 | 青岛海尔空调器有限总公司 | Control method, control device and control system for preventing air conditioner from directly blowing |
| CN113776170A (en) * | 2021-09-08 | 2021-12-10 | 青岛理工大学 | Air conditioner control system and control method |
| CN114151918B (en) * | 2021-11-26 | 2023-04-25 | 宁波奥克斯电气股份有限公司 | Air conditioner dehumidification control method and device and air conditioner |
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| CN110887175A (en) | 2020-03-17 |
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Effective date of registration: 20210813 Address after: No.1 Gangcheng South Road, Jiangbei District, Chongqing, 400026 Applicant after: CHONGQING HAIER AIR-CONDITIONER Co.,Ltd. Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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