JP7138117B2 - Air conditioner calm feeling automatic control method, air conditioner and computer readable storage medium - Google Patents

Description

The present invention relates to the field of air conditioner equipment, and more particularly to an air conditioner automatic control method for feeling no wind, an air conditioner, and a computer-readable storage medium.

With the improvement of people's living standards, the role of household appliances in people's daily life becomes more and more important. In particular, air conditioners have become home appliances that are indispensable for modern people's lives. As users use air conditioners, their demands on air conditioners are increasing. In an air conditioner, a blower plays a role of blowing air. In the process of using the air conditioner, when the user approaches the air conditioner, the blowing capacity of the blower does not change, so in this case, the user may clearly feel the wind blowing against the body. There is That is, the phenomenon of the feeling of blowing wind occurs. In particular, when the air conditioner is in cooling mode, when the user approaches the air conditioner, the air blowing capacity of the air conditioner remains unchanged, making it easier for the user to catch a cold.

The main purpose of the present application is to solve the technical problem in the prior art that the air conditioner cannot automatically adjust the blowing capacity when the user approaches the air conditioner. It is to provide a storage medium that is

To achieve the above objectives, the present application provides an automatic control method for air conditioner calm feeling, which comprises obtaining the current maximum trigger distance when starting the air conditioner cooling mode, and blowing air from the air conditioner. detecting whether or not there is a target obstacle in a direction, whether or not the distance between the target obstacle and the air conditioner is equal to or less than the maximum trigger distance, and whether or not the distance between the target obstacle and the air conditioner is the maximum trigger if less than or equal to the distance, activating a calm mode corresponding to the target obstacle, obtaining operating parameters of the air conditioner, and controlling the air conditioner to operate according to the operating parameters.

Preferably, obtaining the current maximum trigger distance when activating the air conditioner cooling mode includes: obtaining the current duty ratio when the activation of the air conditioner cooling mode is detected; calculating the maximum trigger distance of the .

Preferably, the air conditioner calm feeling automatic control method is applied to a floor-standing air conditioner, wherein the floor-standing air conditioner includes an upper infrared module and a lower infrared module, wherein the upper infrared module and the bottom of the floor-standing air conditioner. is greater than the average height of children, and the distance between the lower infrared module and the bottom of the floor-standing air conditioner is smaller than the average height of children, and it is detected whether there is a target obstacle in the air blowing direction of the air conditioner. includes determining whether the upper infrared module detects the human body's infrared signal and whether the lower infrared module detects the human body's infrared signal, and the upper infrared module detects the human body's infrared signal. If no external signal is detected and the lower infrared module detects the infrared signal of the human body, it is determined that there is a first type target obstacle, and the upper infrared module detects the infrared signal of the human body. If so, it is determined that there is a target obstacle of the second type.

Preferably, detecting whether the distance between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance includes detecting the distance between the first/second type target obstacle and the air conditioner by an infrared module. and determining whether the distance between the first/second type target obstacle and the air conditioner is less than or equal to the maximum trigger distance.

Preferably, activating a calm mode corresponding to the target obstacle, obtaining operating parameters of the air conditioner, and controlling the air conditioner to operate according to the operating parameters, according to the type to which the target obstacle belongs. activating the calm mode, obtaining the current environmental parameters of the air conditioner operation, and obtaining the target temperature according to the current wind sensation index, the current local air velocity and the current turbulence intensity in the current environmental parameters. and obtaining the current local air temperature in the current environmental parameters, calculating the difference value between the current local air temperature and the target temperature, and operating the air conditioner according to the interval where the difference value is located. obtaining parameters and controlling an air conditioner to operate according to the operating parameters.

Preferably, obtaining an operating parameter of the air conditioner according to the interval in which the difference value is located, and controlling the air conditioner to operate according to the operating parameter, when the difference value is in a first preset interval, A predetermined compressor frequency is increased by a first preset value for a duration of a first preset time.

Preferably, the operating parameter of the air conditioner is obtained according to the interval in which the difference value is located, and controlling the air conditioner to operate according to the operating parameter further comprises: when the difference value is in a second preset interval; , lowering the predetermined compressor frequency by a second preset value for a duration of a second preset time.

Preferably, when said difference value is in a second preset interval, reducing a predetermined compressor frequency by a second preset value and having a duration of a second preset time means that said difference value is in a second preset interval. if it is in the second preset interval, lowering the predetermined compressor frequency by a second preset value and detecting whether the predetermined compressor frequency after adjustment is the preset minimum value; is the preset minimum value, the current local airflow rate is reduced by the third preset value, and the target fan speed is obtained according to the adjusted current local airflow rate, and the duration is the second and a preset time for .

In order to achieve the above object, the present invention further proposes an air conditioner. The air conditioner includes an infrared module group, a memory, a processor, and an air conditioner calm feeling automatic control program stored in the memory and executable on the processor, when the air conditioner calm feeling automatic control program is executed by the processor. It implements the steps of the air conditioner calm feeling automatic control method as described above.

And, in order to achieve the above object, the present invention further proposes a computer-readable storage medium. An air conditioner calm feeling automatic control program is stored in the computer-readable storage medium, and when the air conditioner calm feeling automatic control program is executed by the processor, the above steps of the air conditioner calm feeling automatic control method are realized. It is characterized by

In the present invention, when the air conditioner cooling mode is activated, the current maximum trigger distance is obtained, the presence of the target obstacle is detected, and if the distance between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance, the target obstacle is detected. Activate the windless mode corresponding to the object, obtain the operating parameters, and control the air conditioner to operate according to the operating parameters. According to the present invention, when the air conditioner is in the cooling mode, when the human body approaches the air conditioner and the distance between the human body and the air conditioner is less than the maximum trigger distance, the calm mode corresponding to the type of the human body is activated. By operating the air conditioner, the air conditioner operation parameters are adjusted so that the air blown from the air conditioner is comfortable for the human body. This prevents the human body from catching a cold due to being too close to the air conditioner, and ensures the user's health while using the air conditioner.

FIG. 2 is a structural diagram of the air conditioner structure of the hardware operating environment related to the technical solution of an embodiment of the air conditioner calm feeling automatic control method of the present invention; 1 is a flow chart of a first embodiment of an air conditioner calm feeling automatic control method according to the present invention; It is a scene view of an air conditioner ventilation scene in one embodiment of the air conditioner no wind feeling automatic control method of the present invention. FIG. 4 is a flow chart of another embodiment of the air conditioner calm feeling automatic control method of the present invention; FIG. FIG. 10 is a schematic diagram showing temporal changes in airflow temperature when Ts<24° C. when the indoor temperature tends to decrease, or when Ts<25° C. when the indoor temperature tends to increase. FIG. 10 is a schematic diagram showing changes over time in airflow temperature when 24° C.≦Ts<26° C. when the indoor temperature tends to decrease, or when 25° C.≦Ts<27° C. when the indoor temperature tends to increase. FIG. 10 is a schematic diagram showing changes over time in airflow temperature when 26° C.≦Ts<28° C. when the indoor temperature tends to decrease, or when 27° C.≦Ts<29° C. when the indoor temperature tends to rise. FIG. 10 is a schematic diagram showing time-dependent changes in blown air temperature when Ts≧28° C. when the indoor temperature tends to decrease, or when Ts≧29° C. when the indoor temperature tends to rise.

The realization, functional features and advantages of the present invention will be further described in combination with the embodiments with reference to the accompanying drawings.

It should be understood that the specific embodiments described herein are used only to interpret the invention and not to limit the invention.

As shown in FIG. 1, FIG. 1 is a structural schematic diagram of the hardware operating environment of the air conditioner related to the technical solution of one embodiment of the method for automatically controlling air conditioner calm feeling of the present invention.

As shown in FIG. 1, the air conditioner may include a processor 1001 (eg, CPU), a fan 1004, an infrared module group 1003, a memory 1005, and a communication bus 1002. Here, a communication bus 1002 is used to implement connections and communications between these components. Infrared module group 1003 may include an upper infrared module and a lower infrared module. The upper and lower infrared module group detects whether there is a human body infrared signal on its detection direction, and if the upper infrared module does not detect the human body infrared signal, the lower infrared module When detecting the infrared signal of the human body, the lower infrared module is used to detect the distance to the target obstacle. The blower 1004 raises the pressure of the gas with the input mechanical energy and transports the gas. The memory 1005 may be a high speed RAM memory or a non-volatile memory such as a magnetic disk memory. Preferably, memory 1005 may be a storage device separate from said processor 1001 .

Preferably, the air conditioner may also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, etc., which are not mentioned here.

For those skilled in the art, the structure of the air conditioner shown in FIG. 1 does not constitute a limitation to the air conditioner, and may include more or fewer parts than shown, or may combine some parts or arrange different parts. You can understand that.

As shown in FIG. 1, the memory 1005 as a computer storage medium may include an operating system and an air conditioner calm feeling automatic control program.

In the air conditioner shown in FIG. 1, the processor 1001 can call the air conditioner calm feeling automatic control program stored in the memory 1005 and perform the following operations.
Get the current maximum trigger distance when activating A/C cooling mode.
It is detected whether or not there is a target obstacle in the air blowing direction of the air conditioner, and whether or not the distance between the target obstacle and the air conditioner is equal to or less than the maximum trigger distance.
If the distance between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance, activate the calm mode corresponding to the target obstacle, obtain the operating parameters of the air conditioner, and operate the air conditioner according to the operating parameters. Control.

Further, obtaining the current maximum trigger distance when activating the air conditioner cooling mode includes: obtaining the current duty ratio when the activation of the air conditioner cooling mode is detected; Including calculating the trigger distance.

Further, the air conditioner calm feeling automatic control method is applied to a floor-standing air conditioner, the floor-standing air conditioner includes an upper infrared module and a lower infrared module, and the upper infrared module and the bottom of the floor-standing air conditioner are connected. The distance is greater than the average height of the child, the distance between the lower infrared module and the bottom of the floor-standing air conditioner is less than the average height of the child, and detecting whether there is a target obstacle in the blowing direction of the air conditioner. includes determining whether the upper infrared module has detected the human body's infrared signal and whether the lower infrared module has detected the human body's infrared signal; If no external signal is detected, the lower infrared module detects the human body's infrared signal, there is a first type target obstacle, and the upper infrared module detects the human body's infrared signal, the second There are types of target obstacles.

Further, detecting whether the distance between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance means detecting the distance between the first/second type target obstacle and the air conditioner by an infrared module. and determining whether the distance between the first/second type target obstacle and the air conditioner is less than or equal to the maximum trigger distance.

Further, activating the calm mode corresponding to the target obstacle, obtaining the operating parameters of the air conditioner, and controlling the air conditioner to operate according to the operating parameters, according to the type to which the target obstacle belongs. activating a calm mode, obtaining the current environmental parameters of air conditioner operation, and obtaining a target temperature according to the current wind sensation index, the current local air velocity and the current turbulence intensity among the current environmental parameters; obtaining the current local air temperature in the current environmental parameters, calculating the difference value between the current local air temperature and the target temperature, and determining the operating parameters of the air conditioner according to the interval where the difference value is located; and controlling the air conditioner to operate according to the operating parameters.

Further, obtaining an operating parameter of the air conditioner according to the interval in which the difference value is located, and controlling the air conditioner to operate according to the operating parameter comprises: when the difference value is in the first preset interval, a predetermined increasing the compressor frequency by a first preset value for a duration of a first preset time.

obtaining an operating parameter of an air conditioner according to the interval in which the difference value is located, and controlling the air conditioner to operate according to the operating parameter, further comprising: if the difference value is in a second preset interval, Lowering the predetermined compressor frequency by a second preset value for a duration of a second preset time.

Furthermore, if the difference value is in the second preset interval, reducing the predetermined compressor frequency by the second preset value and the duration to the second preset time means that the difference value is in the second preset interval. if it is in the preset section of, lowering the predetermined compressor frequency by a second preset value and detecting whether the predetermined compressor frequency after adjustment is the preset minimum value; If the predetermined compressor frequency is the preset minimum value, reduce the current local airflow rate by the third preset value, obtain the target fan speed according to the adjusted current local airflow rate, and set the duration to the second Including having a preset time.

Referring to FIG. 2, FIG. 2 is a flow chart of the first embodiment of the air conditioner calm feeling automatic control method of the present invention.

In one embodiment, the air conditioner calm feeling automatic control method includes the following steps.
In step S10, the current maximum trigger distance is obtained when the air conditioner cooling mode is activated.
In this embodiment, when detecting the activation of the cooling mode of the air conditioner, the PWM signal of a predetermined infrared module in the air conditioner is detected and the corresponding duty ratio is obtained. The duty ratio is the ratio of the energization time to the total time in one pulse cycle. The higher the infrared emission power, the higher the corresponding duty ratio and thus the longer the infrared module can detect. Thus, by adjusting the infrared emission power of the infrared module, the corresponding duty ratio can be obtained, and the maximum trigger distance D can be calculated by the duty ratio x (D=-a*x^2+b*x+c, where a, b and c are constant values, a = -0.001, b = 0.07 and c = 0.997). For a fixed air conditioner, a fixed duty ratio x can be obtained by adjusting the infrared emission power of the infrared module according to the actual demand. Therefore, when activation of the air conditioner cooling mode is detected, the PWM signal of a predetermined infrared module in the air conditioner is detected, and the corresponding duty ratio is acquired to calculate the current maximum trigger distance L0 by the above formula. .

In step S20, it is detected whether or not there is a target obstacle in the air blowing direction of the air conditioner, and whether or not the distance between the target obstacle and the air conditioner is equal to or less than the maximum trigger distance.
In this embodiment, the target obstacle refers to a child or an adult. That is, it detects whether there is a child or an adult, and whether the distance L between the child and the adult air conditioner is equal to or less than the maximum trigger distance L0. In this embodiment, the air conditioner refers to a floor-standing air conditioner, and an infrared module group including an upper infrared module group and a lower infrared module group is installed on the floor-standing air conditioner. Here, the distance between the upper infrared module and the bottom of the floor-standing air conditioner is greater than the average height of children, and the distance between the lower infrared module and the bottom of the floor-standing air conditioner is smaller than the average height of children. The average height of children is set to 1.2m, for example, based on the actual situation. Please refer to FIG. 3, which is a scene view of an air conditioner blowing scene in an embodiment of the method for automatically controlling air conditioner calm feeling according to the present invention.

In this embodiment, both the upper infrared module and the lower infrared module can receive infrared rays within the detection range, and the detection direction of the upper infrared module and the lower infrared module is the same as or substantially the same as the blowing direction of the air conditioner. For example, parallel to the horizontal plane and perpendicular to the front of the air conditioner (the side on which the air outlet of the air conditioner is located). Since the wavelength of infrared rays emitted by the human body is mainly concentrated around 10000 nm, one interval (for example, 9500 nm to 10500 nm) can be set based on this feature of the infrared rays emitted by the human body (specifically, the actual situation (set by When the infrared wavelength detected by the lower infrared module is between 9500nm and 10500nm, and the infrared wavelength detected by the upper infrared module is not between 9500nm and 10500nm, the lower infrared module detects a human body and the upper infrared The module did not detect a human body, that is, it was able to confirm the presence of a child, which is the target obstacle of the first type at present. When the infrared rays detected by the upper infrared module are in the range of 9500nm to 10500nm, it can be confirmed that the upper infrared module detects a human body, that is, there is an adult, which is the second type of target obstacle at present. It turns out that.

After confirming that the target obstacle exists, the distance between the target obstacle and the air conditioner is further confirmed. In this embodiment, for example, the upper and lower infrared modules include an infrared distance measuring sensor having a pair of infrared signal emitting and receiving diodes. Use the infrared distance measurement sensor to emit a bundle of infrared light, irradiate the object and form the process of reflection, receive the signal reflected by the sensor, and use CCD image processing to emit and Process data out of time with receipt. After being processed by the signal processor, the distance to the object is calculated. That is, when it is determined that there is a target obstacle, the emitting tube of the infrared distance measuring sensor in the infrared module emits an infrared signal of a specific frequency, and the receiving tube receives the infrared signal of this kind of frequency. . When it hits the target obstacle in the infrared detection direction, the infrared signal is reflected and received by the receiving tube. After processing, the infrared feedback signal can be used to calculate the distance L between the target obstacle and the air conditioner. detect the distance L between the first type target obstacle and the air conditioner, and detect the distance between the second type target obstacle and the air conditioner by the upper infrared module if it is determined that there is a second type target obstacle;

After calculating the distance L between the target obstacle and the air conditioner, determine whether L is less than the maximum trigger distance L0. If L is less than L0, the target obstacle is relatively close to the air conditioner. It will be.

In step S30, if the distance between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance, activate the calm mode corresponding to the target obstacle, obtain the operating parameters of the air conditioner, and operate the air conditioner according to the operating parameters. to control the air conditioner.

In this embodiment, when the distance L between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance, the human body is relatively close to the air conditioner. On the other hand, the air conditioner is also in the cooling mode, so in this situation, the human body may be blown by the wind and catch a cold. Therefore, when the distance L between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance, the corresponding calm mode is activated according to the type of the target obstacle. If the target obstacle is the first target obstacle, i.e., a child, activate the air conditioner calm feeling mode, obtain the operating parameters, and control the air conditioner to operate according to the operating parameters. If the target obstacle is the second target obstacle, that is, an adult, activate the air conditioner general calm mode, obtain the operating parameters, and control the air conditioner to operate according to the operating parameters.

In an embodiment of the present invention, if the target obstacle is a child, which is the first target obstacle, the air conditioner no wind feeling mode is activated, firstly, the local air temperature, wind feeling index, Obtain the local air velocity, fan rotation speed, and turbulence intensity, obtain the theoretical target temperature by calculation based on the wind blowing index, local air velocity, and turbulence intensity, and calculate the target temperature based on the theoretical target temperature and the set temperature. and finally the operating parameters are obtained based on the target temperature and the local air temperature.

In one embodiment of the present invention, the local air temperature is determined by the temperature of the blast, and the blast temperature tc is collected by the quiescent type that is activated. It is tc1 when starting the feeling of no wind, tc2 when starting the feeling of no wind, and tc3 when starting the feeling of overall no wind. Calculate the local air temperature value ta at 2.5 meters based on the relevant formula. It is ta1 when starting the feeling of no wind, ta2 when starting the feeling of no wind, and ta3 when starting the feeling of overall no wind. The relational expression between the air outlet temperature and the local air temperature is ta=atc+b (where ta is the local air temperature and tc is the air outlet temperature). Both a and b are constants, and the values of a and b corresponding to different doldrums types are also different. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the blower port temperature and the local air temperature is ta=0.2307tc+23.955. If it is determined that the current type of windlessness is the lower calmness, the temperature collected by the predetermined temperature sensor at the lower blower outlet, that is, the blower outlet temperature tc, is obtained and substituted into the above formula to obtain the current local air temperature. get

In the present example, the wind feeling index is determined by the current doldrums type. The wind blowing index DR1 for the feeling of no wind above is set to 5, the feeling of wind blowing index DR2 for feeling of no wind below is set to 10, and the wind blowing feeling index DR3 for the feeling of overall no wind is set in advance to 5. For example, when it is determined that the current type of feeling of calmness is the feeling of feeling of no wind, the current feeling of windy index DR=10 is acquired.

In one embodiment of the present invention, the local airflow velocity is related to factors such as wind tunnel structure, fan speed, and the like. Approximately, the local air velocity Va can be considered to be related only to the rotational speed F (F=1% to 100%) of the blower (that is, the blower of the air conditioner, hereinafter the same). The relational expression between the local air velocity Va and the blower rotation speed F is Va=cF+d, where c and d are both constants, and the values of c and d corresponding to different no-wind sensation types are also different. That is, the sense of no wind corresponds to c1 and d1, the sense of no wind to the bottom corresponds to c2 and d2, and the feeling of no wind to the whole corresponds to c3 and d3. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the local air velocity Va and the fan rotation speed F is Va=0.0352F+0.1366. When it is determined that the current type of no-wind feeling is the lower no-wind feeling, the current local air-flow velocity Va is, for example, an initially selected value of 0.3 m/s. The current rotation speed F of the fan can be obtained.

In one embodiment of the present invention, turbulence intensity is related to air channel structure, fan speed and its stability. Approximately, the turbulence intensity can be regarded as related only to the fan speed. The relational expression between the turbulence intensity Tu and the blower rotation speed F is Tu=eF ² +fF+g, where e, f, and g are all constants, and the values of e, f, and g corresponding to different types of calmness are expressed. The values are also different. That is, e1 = 0, f1 = 0, g1 = 36.4 for upper doldrums, e2 = -12.858, f2 = 29.244, g2 = 21.424 for lower doldrums, and e3 = 0 for overall doldrums. , f3=0, g3=29.6. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the turbulence intensity Tu and the fan rotation speed F is Tu=−12.858F ² +29.244F+21.424. When it is determined that the current type of feeling of calm is the feeling of no wind, the current rotation speed F of the blower is obtained and substituted into the above formula to obtain the current turbulence intensity Tu.

In this embodiment, the current set temperature is the temperature value preset by the user. For example, after the user starts the air conditioner, he sets a temperature, such as 25° C., that is, the current set temperature.

In 1988, Fanger proposed a model for predicting wind blow discomfort. Based on this model, IS07730-2005 uses the wind sensation index DR to express the degree of human discomfort caused by the wind sensation. The expression of the wind blowing index is DR = (34-tas) (Va-0.05) 0.62 (0.37 x Va x Tu + 3.14), where DR is the wind blowing index, If DR > 100% then DR = 100%, tas is the logical target temperature in degrees Celsius, Va is the local air velocity in m/s and Tu is the turbulence intensity. .

The theoretical target temperature tas is obtained by substituting the current wind sensation index DR, the current local air velocity Va, and the current turbulence intensity into the above wind sensation index expression.

In one embodiment of the present invention, if the target obstacle is a child, the target temperature can be obtained from the theoretical target temperature and the current set temperature.
When the set temperature is lower than 24°C, if the theoretical target temperature tas is lower than 24°C, the value of the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 29°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

When the set temperature is 24°C or higher and 28°C or lower, if the theoretical target temperature tas is lower than 24°C, the value of the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 28°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

If the set temperature is higher than 28°C and the theoretical target temperature tas is lower than 24°C, the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 29°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

After obtaining the target temperature, compare the target temperature tas with the current local air temperature ta. First, it is determined whether the value of the difference between tas and ta is greater than a preset value. For example, it is determined whether the difference between tas and ta is greater than 1, and if the difference between tas and ta is not greater than 1, the air conditioner is operated while maintaining the current parameters. If the value of the difference between tas and ta is greater than one, two situations exist. First, tas is greater than ta and the difference value is greater than one. Second, tas is less than ta and the difference value is greater than one. That is, there are two intervals in the ta-tas difference value. The first interval is (1, ∞), that is, tas is less than ta and the difference value is greater than one. The second interval is (-∞, -1), ie tas is greater than ta and the difference value is greater than one. When the value of the difference between ta and tas is in the first interval, the compressor frequency is increased by a preset value. For example, the compressor frequency is increased by 1hz and the operating time is maintained for 3min. When the value of the difference between ta and tas is in the second interval, lower the compressor frequency by a preset value. For example, the compressor frequency is lowered by 1 hz and the operating time is maintained for 3 minutes. In another embodiment of the invention, when the compressor frequency is lowered to a minimum value, eg 20 hz, the initially selected value of 0.3 m/s for the local airflow velocity is lowered by a preset value, eg 0.1. That is, when the compressor frequency is lowered to 20 hz, the local air velocity is lowered to 0.2 m/s. When there is no wind, the relational expression Va=0.0352F+0.1366 between the local air velocity Va and the blower rotation speed F is obtained by calculating the blower rotation speed F=1.8011 at this time. Then, the compressor is operated at the current compressor frequency of 20 hz and the blower rotation speed at this time is 1.8011, and the operating time is 3 minutes (this time can be set according to actual demand and is not limited here).

In another embodiment of the present invention, when the target obstacle is an adult, the air conditioner whole calm mode is activated, and the subsequent processing is similar to the processing when the target obstacle is a child. That is, first, in the overall calm mode of the air conditioner, the local air temperature, the wind sensation index, the local air velocity, the fan rotation speed, and the turbulence intensity in the operating environment of the air conditioner are acquired, and the wind sensation index, the local air velocity, and the turbulence intensity are obtained. A theoretical target temperature is calculated based on the flow intensity. In the step of obtaining the target temperature from the theoretical target temperature and the set temperature, the value range of the target temperature is 24°C to 27°C. After obtaining the target temperature, compare the target temperature tas with the current local air temperature ta. First, it is determined whether the value of the difference between tas and ta is greater than a preset value. For example, it is determined whether the difference between tas and ta is greater than 0.5, and if the difference between tas and ta is not greater than 0.5, the air conditioner is operated while maintaining the current parameters. If the value of the difference between tas and ta is greater than 0.5, two situations exist. First, tas is greater than ta and the difference value is greater than 0.5. Second, tas is less than ta and the difference value is greater than 0.5. That is, there are two intervals in the ta-tas difference value. The first interval is (0.5, ∞), ie tas is less than ta and the difference value is greater than 0.5. The second interval is (-∞, -0.5), ie tas is greater than ta and the difference value is greater than 0.5. When the value of the difference between ta and tas is in the first interval, the compressor frequency is increased by a preset value. For example, the compressor frequency is increased by 1hz and the operating time is maintained for 3min. When the value of the difference between ta and tas is in the second interval, lower the compressor frequency by a preset value. For example, the compressor frequency is lowered by 1 hz and the operating time is maintained for 3 minutes. In another embodiment of the invention, when the compressor frequency is lowered to a minimum value, eg 20 hz, the initially selected value of 0.3 m/s for the local airflow velocity is lowered by a preset value, eg 0.1. That is, when the compressor frequency is lowered to 20 hz, the local air velocity is lowered to 0.2 m/s. When there is no wind, the rotation speed of the blower is calculated from the relational expression between the local air velocity Va and the rotation speed F of the blower. Then, the compressor is operated at the current compressor frequency of 20 hz and the blower rotation speed at this time, and the operation time is set to 3 minutes (this time can be set according to actual demand and is not limited here).

In the present invention, when the air conditioner cooling mode is activated, the current maximum trigger distance is obtained, the presence of the target obstacle is detected, and if the distance between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance, the target obstacle is detected. to obtain the operating parameters and control the air conditioner to operate according to the operating parameters. According to the present invention, when the air conditioner is in the cooling mode, when the human body approaches the air conditioner and the distance between the human body and the air conditioner is less than the maximum trigger distance, the calm mode corresponding to the type of the human body is activated. By operating the air conditioner, the air conditioner operation parameters are adjusted so that the air blown from the air conditioner is comfortable for the human body. This prevents the human body from catching a cold due to being too close to the air conditioner, and ensures the user's health while using the air conditioner.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, step S10 is to acquire the current duty ratio when the start of the air conditioner cooling mode is detected, and to obtain the current maximum trigger according to the current duty ratio. Including calculating the distance.

In this embodiment, upon detection of activation of the air conditioner cooling mode, the PWM signal of a predetermined infrared module in the air conditioner is detected, and the duty ratio corresponding to the PWM signal is obtained. The duty ratio is the ratio of the energization time to the total time in one pulse cycle. The higher the infrared emission power, the higher the corresponding duty ratio and thus the longer the infrared module can detect. Thus, by adjusting the infrared emission power of the infrared module, the corresponding duty ratio can be obtained, and the maximum trigger distance D can be calculated by the duty ratio x (D=-a*x^2+b*x+c, where a , b and c are constant values, where a=−0.001, b=0.07 and c=0.997). For a fixed air conditioner, the infrared emission power of the infrared module can be adjusted according to the actual demand to obtain a fixed duty ratio x, thereby obtaining the maximum trigger distance L0. That is, the maximum trigger distance can be adjusted by adjusting the infrared emission power of the infrared module. Therefore, when activation of the air conditioner cooling mode is detected, the PWM signal of a predetermined infrared module in the air conditioner is detected, and the corresponding duty ratio is acquired to calculate the current maximum trigger distance L0 by the above formula. .

In this embodiment, the maximum trigger distance is calculated, and when it is later detected that the distance between the child or adult, which is the target obstacle, and the air conditioner is less than the maximum trigger distance, the target obstacle is relatively close to the air conditioner. Therefore, in order to prevent the cold air blown from the air conditioner from harming the health of children or adults, it is necessary to activate the air conditioner calm mode corresponding to the type of target obstacle.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, the air conditioner calm feeling automatic control method is applied to a floor-standing air conditioner, the floor-standing air conditioner includes an upper infrared module and a lower infrared module, The distance between the upper infrared module and the bottom of the floor-standing air conditioner is greater than the average height of children, the distance between the lower infrared module and the bottom of the floor-standing air conditioner is less than the average height of children, and the direction of air blowing from the air conditioner is the target. Detecting whether there is an obstacle includes determining whether the upper infrared module has detected the human body's infrared signal and whether the lower infrared module has detected the human body's infrared signal. Including, if the upper infrared module does not detect the human body's infrared signal, and the lower infrared module detects the human body's infrared signal, there is a first type target obstacle, and the upper infrared module When the infrared signal of the human body is detected, there is a second type of target obstacle.

In this embodiment, the target obstacle refers to a child or an adult. That is, it detects whether there is a child or an adult, and whether the distance L between the child and the adult air conditioner is equal to or less than the maximum trigger distance L0. In this embodiment, the air conditioner refers to a floor-standing air conditioner, and an infrared module group including an upper infrared module group and a lower infrared module group is installed on the floor-standing air conditioner. Here, the distance between the upper infrared module and the bottom of the floor-standing air conditioner is greater than the average height of children, and the distance between the lower infrared module and the bottom of the floor-standing air conditioner is smaller than the average height of children. The average height of children is set to 1.2m, for example, based on the actual situation. Please refer to FIG. 3, which is a scene view of an air conditioner blowing scene in an embodiment of the method for automatically controlling air conditioner calm feeling according to the present invention.

In this embodiment, both the upper infrared module and the lower infrared module can receive infrared rays within the detection range, and the detection direction of the upper infrared module and the lower infrared module is the same as or substantially the same as the blowing direction of the air conditioner. For example, parallel to the horizontal plane and perpendicular to the front of the air conditioner (the side on which the air outlet of the air conditioner is located). Since the wavelength of infrared rays emitted by the human body is mainly concentrated around 10000 nm, one interval (for example, 9500 nm to 10500 nm) can be set based on this feature of the infrared rays emitted by the human body (specifically, the actual situation (set by When the infrared wavelength detected by the lower infrared module is between 9500nm and 10500nm, and the infrared wavelength detected by the upper infrared module is not between 9500nm and 10500nm, the lower infrared module detects a human body and the upper infrared The module does not detect a human body, that is, it can be confirmed that the child, which is the target obstacle of the first type, exists. When the infrared rays detected by the upper infrared module are in the range of 9500nm to 10500nm, it can be confirmed that the upper infrared module detects a human body, that is, there is an adult, which is the second type of target obstacle at present. It turns out that.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, detecting whether the distance between the target obstacle and the air conditioner is equal to or less than the maximum trigger distance is performed by the infrared module. detecting the distance between the target obstacle of the second type and the air conditioner; and determining whether the distance between the target obstacle of the first/second type and the air conditioner is less than or equal to the maximum trigger distance.

After confirming that the target obstacle exists, the distance between the target obstacle and the air conditioner is further confirmed. In this embodiment, for example, the infrared module includes an infrared distance measuring sensor having a pair of infrared signal emitting and receiving diodes. Use the infrared distance measurement sensor to emit a bundle of infrared light, irradiate the object and form the process of reflection, receive the signal reflected by the sensor, and use CCD image processing to emit and Process data out of time with receipt. After being processed by the signal processor, the distance to the object is calculated. That is, when it is determined that there is a target obstacle, the emitting tube of the infrared distance measuring sensor in the lower infrared module emits an infrared signal of a certain frequency, and the receiving tube receives the infrared signal of this kind of frequency. do. When it hits the target obstacle in the infrared detection direction, the infrared signal is reflected and received by the receiving tube. After processing, the infrared feedback signal can be used to calculate the distance L between the target obstacle and the air conditioner.

After calculating the distance L between the target obstacle and the air conditioner, determine whether L is less than the maximum trigger distance L0. If L is less than L0, the target obstacle is relatively close to the air conditioner. It will be. Then, by operating the air conditioner to activate the corresponding calm mode, the air blowing from the air conditioner can be adjusted to the air conditioner operating parameters so that it is comfortable for the human body. This prevents the human body from catching a cold due to being too close to the air conditioner, and ensures the user's health while using the air conditioner.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, the steps of activating the air conditioner calm feeling mode, obtaining the operation parameters of the air conditioner, and controlling the air conditioner to operate according to the operation parameters are as described above. According to the type of the target obstacle, activate the corresponding calm mode, obtain the current environmental parameters of the air conditioner operation, and obtain the current wind sensation index, the current local air velocity and the current turbulence in the current environmental parameters. obtaining a target temperature according to the flow intensity; obtaining a current local air temperature in the current environmental parameter; calculating a difference value between the current local air temperature and the target temperature; Obtaining operating parameters according to the located section, and controlling the air conditioner to operate according to the operating parameters.

In this embodiment, when the distance L between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance, the human body is relatively close to the air conditioner. On the other hand, the air conditioner is also in the cooling mode, so in this situation, the human body may be blown by the wind and catch a cold. Therefore, when the distance L between the target obstacle and the air conditioner is less than or equal to the maximum trigger distance, the corresponding calm mode is activated according to the type of the target obstacle. If the target obstacle is the first target obstacle, i.e., a child, activate the air conditioner calm feeling mode, obtain the operating parameters, and control the air conditioner to operate according to the operating parameters. If the target obstacle is the second target obstacle, that is, an adult, activate the air conditioner general calm mode, obtain the operating parameters, and control the air conditioner to operate according to the operating parameters.

In an embodiment of the present invention, if the target obstacle is a child, which is the first target obstacle, the air conditioner no wind feeling mode is activated, firstly, the local air temperature, wind feeling index, Obtain the local air velocity, fan rotation speed, and turbulence intensity, obtain the theoretical target temperature by calculation based on the wind blowing index, local air velocity, and turbulence intensity, and calculate the target temperature based on the theoretical target temperature and the set temperature. and finally the operating parameters are obtained based on the target temperature and the local air temperature.

In one embodiment of the present invention, the local air temperature is determined by the temperature of the blast, and the blast temperature tc is collected by the quiescent type that is activated. It is tc1 when starting the feeling of no wind, tc2 when starting the feeling of no wind, and tc3 when starting the feeling of overall no wind. Calculate the local air temperature value ta at 2.5 meters based on the relevant formula. It is ta1 when starting the feeling of no wind, ta2 when starting the feeling of no wind, and ta3 when starting the feeling of overall no wind. The relational expression between the air outlet temperature and the local air temperature is ta=atc+b (where ta is the local air temperature and tc is the air outlet temperature). Both a and b are constants, and the values of a and b corresponding to different doldrums types are also different. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the blower port temperature and the local air temperature is ta=0.2307tc+23.955. If it is determined that the current type of windlessness is the lower calmness, the temperature collected by the predetermined temperature sensor at the lower blower outlet, that is, the blower outlet temperature tc, is obtained and substituted into the above formula to obtain the current local air temperature. get

In the present example, the wind feeling index is determined by the current doldrums type. The wind blowing index DR1 for the feeling of no wind above is set to 5, the feeling of wind blowing index DR2 for feeling of no wind below is set to 10, and the wind blowing feeling index DR3 for the feeling of overall no wind is set in advance to 5. For example, when it is determined that the current type of feeling of calmness is the feeling of feeling of no wind, the current feeling of windy index DR=10 is obtained.

In one embodiment of the present invention, the local airflow velocity is related to factors such as wind tunnel structure, fan speed, and the like. Approximately, the local air velocity Va can be considered to be related only to the rotational speed F (F=1% to 100%) of the blower (that is, the blower of the air conditioner, hereinafter the same). The relational expression between the local air velocity Va and the blower rotation speed F is Va=cF+d, where c and d are both constants, and the values of c and d corresponding to different calm feeling types are also different. That is, the sense of no wind corresponds to c1 and d1, the sense of no wind to the bottom corresponds to c2 and d2, and the feeling of no wind to the whole corresponds to c3 and d3. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the local air velocity Va and the fan rotation speed F is Va=0.0352F+0.1366. When it is determined that the current type of no-wind feeling is the lower no-wind feeling, the current local air-flow velocity Va is, for example, an initially selected value of 0.3 m/s. The current rotation speed F of the fan can be obtained.

In one embodiment of the present invention, turbulence intensity is related to air channel structure, fan speed and its stability. Approximately, the turbulence intensity can be regarded as related only to the fan speed. The relational expression between the turbulence intensity Tu and the blower rotation speed F is Tu=eF ² +fF+g, where e, f, and g are all constants, and the values of e, f, and g corresponding to different types of calmness are expressed. The values are also different. That is, e1 = 0, f1 = 0, g1 = 36.4 for upper doldrums, e2 = -12.858, f2 = 29.244, g2 = 21.424 for lower doldrums, and e3 = 0 for overall doldrums. , f3=0, g3=29.6. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the turbulence intensity Tu and the fan rotation speed F is Tu=−12.858F ² +29.244F+21.424. When it is determined that the current type of feeling of calm is the feeling of no wind, the current rotation speed F of the blower is obtained and substituted into the above formula to obtain the current turbulence intensity Tu.

In this embodiment, the current set temperature is the temperature value preset by the user. For example, after the user starts the air conditioner, he sets a temperature, such as 25° C., that is, the current set temperature.

In 1988, Fanger proposed a model for predicting wind blow discomfort. Based on this model, IS07730-2005 uses the wind sensation index DR to express the degree of human discomfort caused by the wind sensation. The expression of the wind blowing index is DR = (34-tas) (Va-0.05) 0.62 (0.37 x Va x Tu + 3.14), where DR is the wind blowing index, If DR > 100% then DR = 100%, tas is the logical target temperature in degrees Celsius, Va is the local air velocity in m/s and Tu is the turbulence intensity. .

The theoretical target temperature tas is obtained by substituting the current wind sensation index DR, the current local air velocity Va, and the current turbulence intensity into the above wind sensation index expression.

In one embodiment of the present invention, if the target obstacle is a child, the target temperature can be obtained from the theoretical target temperature and the current set temperature.
When the set temperature is lower than 24°C, if the theoretical target temperature tas is lower than 24°C, the value of the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 29°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

When the set temperature is 24°C or higher and 28°C or lower, if the theoretical target temperature tas is lower than 24°C, the value of the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 28°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

If the set temperature is higher than 28°C and the theoretical target temperature tas is lower than 24°C, the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 29°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

After obtaining the target temperature, compare the target temperature tas with the current local air temperature ta. First, it is determined whether the value of the difference between tas and ta is greater than a preset value. For example, it is determined whether the difference between tas and ta is greater than 1, and if the difference between tas and ta is not greater than 1, the air conditioner is operated while maintaining the current parameters. If the value of the difference between tas and ta is greater than one, two situations exist. First, tas is greater than ta and the difference value is greater than one. Second, tas is less than ta and the difference value is greater than one. That is, there are two intervals in the ta-tas difference value. The first interval is (1, ∞), that is, tas is less than ta and the difference value is greater than one. The second interval is (-∞, -1), ie tas is greater than ta and the difference value is greater than one. When the value of the difference between ta and tas is in the first interval, the compressor frequency is increased by a preset value. For example, the compressor frequency is increased by 1hz and the operating time is maintained for 3min. When the value of the difference between ta and tas is in the second interval, lower the compressor frequency by a preset value. For example, the compressor frequency is lowered by 1 hz and the operating time is maintained for 3 minutes. In another embodiment of the invention, when the compressor frequency is lowered to a minimum value, eg 20 hz, the initially selected value of 0.3 m/s for the local airflow velocity is lowered by a preset value, eg 0.1. That is, when the compressor frequency is lowered to 20 hz, the local air velocity is lowered to 0.2 m/s. When there is no wind, the relational expression Va=0.0352F+0.1366 between the local air velocity Va and the blower rotation speed F is obtained by calculating the blower rotation speed F=1.8011 at this time. Then, the compressor is operated at the current compressor frequency of 20 hz and the blower rotation speed at this time is 1.8011, and the operating time is 3 minutes (this time can be set according to actual demand and is not limited here).

In another embodiment of the present invention, when the target obstacle is an adult, the air conditioner whole calm mode is activated, and the subsequent processing is similar to the processing when the target obstacle is a child. That is, first, in the overall calm mode of the air conditioner, the local air temperature, the wind sensation index, the local air velocity, the fan rotation speed, and the turbulence intensity in the operating environment of the air conditioner are acquired, and the wind sensation index, the local air velocity, and the turbulence intensity are obtained. A theoretical target temperature is calculated based on the flow intensity. In the step of obtaining the target temperature from the theoretical target temperature and the set temperature, the value range of the target temperature is 24°C to 27°C. After obtaining the target temperature, compare the target temperature tas with the current local air temperature ta. First, it is determined whether the value of the difference between tas and ta is greater than a preset value. For example, it is determined whether the difference between tas and ta is greater than 0.5, and if the difference between tas and ta is not greater than 0.5, the air conditioner is operated while maintaining the current parameters. If the value of the difference between tas and ta is greater than 0.5, two situations exist. First, tas is greater than ta and the difference value is greater than 0.5. Second, tas is less than ta and the difference value is greater than 0.5. That is, there are two intervals in the ta-tas difference value. The first interval is (0.5, ∞), ie tas is less than ta and the difference value is greater than 0.5. The second interval is (-∞, -0.5), ie tas is greater than ta and the difference value is greater than 0.5. When the value of the difference between ta and tas is in the first interval, the compressor frequency is increased by a preset value. For example, the compressor frequency is increased by 1hz and the operating time is maintained for 3min. When the value of the difference between ta and tas is in the second interval, lower the compressor frequency by a preset value. For example, the compressor frequency is lowered by 1 hz and the operating time is maintained for 3 minutes. In another embodiment of the invention, when the compressor frequency is lowered to a minimum value, eg 20 hz, the initially selected value of 0.3 m/s for the local airflow velocity is lowered by a preset value, eg 0.1. That is, when the compressor frequency is lowered to 20 hz, the local air velocity is lowered to 0.2 m/s. When there is no wind, the rotation speed of the blower is calculated from the relational expression between the local air velocity Va and the rotation speed F of the blower. Then, the compressor is operated at the current compressor frequency of 20 hz and the blower rotation speed at this time, and the operation time is set to 3 minutes (this time can be set according to actual demand and is not limited here).

In this embodiment, according to the type to which the target obstacle belongs, the corresponding calm mode is activated, and the target temperature is obtained based on the calm mode and the acquired environmental parameters, so that the target temperature and the current air temperature Based on the difference value, the corresponding control strategy is obtained, and the self-adaptive control of the air conditioner is further realized.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, the operation parameter of the air conditioner is obtained from the section where the difference value is located, and the air conditioner is controlled to operate according to the operation parameter, increasing the predetermined compressor frequency by a first preset value for a duration of a first preset time if the difference value is in the first preset interval;

In this example, when the target obstacle is a child, which is the primary target obstacle, there are two intervals in the ta-tas difference value. The first interval is (1, ∞), that is, tas is less than ta and the difference value is greater than one. The second interval is (-∞, -1), ie tas is greater than ta and the difference value is greater than one. When the difference value between ta and tas is in the first interval, it means that the local air temperature is higher than the target temperature, the difference value is higher than the preset value, and the current cooling process is required. Based on a predetermined policy, the compressor frequency is increased by a preset value. For example, increase the compressor frequency by 1 hz (ie the first preset value) and keep the running time of 3 min (ie the first preset time).

In this embodiment, when the target obstacle is an adult who is the second target obstacle, there are two intervals in the ta-tas difference value. The first interval is (0.5, ∞), ie tas is less than ta and the difference value is greater than 0.5. The second interval is (-∞, -0.5), ie tas is greater than ta and the difference value is greater than 0.5. When the difference value between ta and tas is in the first interval, it means that the local air temperature is higher than the target temperature, the difference value is higher than the preset value, and the current cooling process is required. Based on a predetermined policy, the compressor frequency is increased by a preset value. For example, increase the compressor frequency by 1 hz (ie the first preset value) and keep the running time of 3 min (ie the first preset time).

In this embodiment, when the target temperature is lower than the local air temperature and the difference value is greater than the preset value, it means that the current local air temperature is relatively high and needs to be cooled. The air conditioner operating parameters are adjusted according to a predetermined adjustment policy to achieve automated control in the air conditioner's windless mode.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, the operation parameter of the air conditioner is obtained from the section where the difference value is located, and the air conditioner is controlled to operate according to the operation parameter. and reducing the predetermined compressor frequency by a second preset value for a duration of a second preset time if the difference value is in a second preset interval.

In this example, when the target obstacle is a child, which is the primary target obstacle, there are two intervals in the ta-tas difference value. The first interval is (1, ∞), that is, tas is less than ta and the difference value is greater than one. The second interval is (-∞, -1), ie tas is greater than ta and the difference value is greater than one. When the difference value between ta and tas is in the second interval, it means that the local air temperature is lower than the target temperature and the difference value is higher than the preset value, and the current heating process is required. According to the corresponding predetermined policy, for example, the compressor frequency is increased by 1hz (ie the second preset value, which can be freely set according to the actual situation), and the running time is 3min (ie the second preset time. This value can be freely set according to the actual situation).

In this embodiment, when the target obstacle is an adult who is the second target obstacle, there are two intervals in the ta-tas difference value. The first interval is (0.5, ∞), ie tas is less than ta and the difference value is greater than 0.5. The second interval is (-∞, -0.5), ie tas is greater than ta and the difference value is greater than 0.5. When the difference value between ta and tas is in the second interval, it means that the local air temperature is lower than the target temperature and the difference value is higher than the preset value, and the current heating process is required. According to the corresponding predetermined policy, for example, the compressor frequency is increased by 1hz (ie the second preset value, which can be freely set according to the actual situation), and the running time is 3min (ie the second preset time. This value can be freely set according to the actual situation).

In this embodiment, when the target temperature is higher than the local air temperature and the difference value is greater than the preset value, it means that the current local air temperature is relatively low and the heating process is required. The air conditioner operating parameters are adjusted according to the corresponding predetermined adjustment policy, and automatic control is realized in the windless mode of the air conditioner.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, when the difference value is in the second preset section, the predetermined compressor frequency is lowered by the second preset value, and the duration is set to the second When the difference value is in the second preset interval, the predetermined compressor frequency is lowered by the second preset value, and the predetermined compressor frequency after adjustment is the preset minimum value. and if the predetermined compressor frequency after adjustment is the preset minimum value, reduce the current local airflow rate by a third preset value, and according to the current local airflow rate after adjustment , obtaining a target fan speed and a duration of a second preset time.

In one embodiment of the present invention, when the compressor frequency is lowered to a minimum value, e.g. Three preset values, which can be freely set according to the actual situation) lower. That is, when the compressor frequency is lowered to 20 hz, the local air velocity is lowered to 0.2 m/s. When there is no wind, the relational expression Va=0.0352F+0.1366 between the local air velocity Va and the blower rotation speed F is obtained by calculating the blower rotation speed F=1.8011 at this time. Then, the compressor is operated at the current compressor frequency of 20 hz and the blower rotation speed at this time is 1.8011, and the operating time is 3 minutes (this time can be set according to actual demand and is not limited here). In the overall doldrums mode, the processing steps are similar to those in the lower doldrums mode, so no further explanation is given here.

In this embodiment, when the compressor frequency is at the minimum value, the time required to reach the target temperature is shortened by increasing the temperature by reducing the rotational speed of the blower.

By the way, an embodiment of the present invention further proposes a computer-readable storage medium. An air conditioner calm feeling automatic control program is stored in the computer-readable storage medium, and when the air conditioner calm feeling automatic control program is executed by the processor, the above steps of the air conditioner calm feeling automatic control method are realized. .

Specific embodiments of the computer-readable storage medium of the present invention are basically the same as the above-described embodiments of the air conditioner calm feeling automatic control method, and will not be repeated here.

As shown in FIG. 1, FIG. 1 is a structural schematic diagram of the hardware operating environment of the air conditioner related to the technical solution of one embodiment of the method for automatically controlling air conditioner calm feeling of the present invention.

As shown in FIG. 1, the air conditioner may include a processor 1001 (eg, CPU), a fan 1004, an infrared module group 1003, a memory 1005, and a communication bus 1002. Here, a communication bus 1002 is used to implement connections and communications between these components. Infrared module group 1003 may include an upper infrared module and a lower infrared module. The upper and lower infrared module group detects whether there is a human body infrared signal on its detection direction, and if the upper infrared module does not detect the human body infrared signal, the lower infrared module When detecting the infrared signal of the human body, the lower infrared module is used to detect the distance to the target obstacle. The blower 1004 raises the pressure of the gas with the input mechanical energy and transports the gas. The memory 1005 may be a high speed RAM memory or a non-volatile memory such as a magnetic disk memory. Preferably, memory 1005 may be a storage device separate from said processor 1001 .

Preferably, the air conditioner may also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, etc., which are not mentioned here.

For those skilled in the art, the structure of the air conditioner shown in FIG. 1 does not constitute a limitation to the air conditioner, and may include more or fewer parts than shown, or may combine some parts or arrange different parts. You can understand that.

As shown in FIG. 1, the memory 1009 as a computer storage medium may include an operating system and an air conditioner calm feeling automatic control program.

In the air conditioner shown in FIG. 1, the processor 1006 can call the air conditioner calm feeling automatic control program stored in the memory 1009 and perform the following operations.
When activating the air conditioner cooling mode, it is detected whether there is a target obstacle in the air blowing direction of the air conditioner.
detecting whether the distance between the first type target obstacle and the air conditioner is less than or equal to a preset threshold when there is a target obstacle and the target obstacle is the first type target obstacle;
If the distance between the target obstacle of the first type and the air conditioner is less than or equal to the preset threshold, the set temperature of the air conditioner, the environmental temperature change trend in the operating environment of the air conditioner, and the temperature of air blown by the air conditioner are obtained.
A first operating parameter of the air conditioner is obtained from the set temperature, the environmental temperature change tendency, and the air conditioner blowing temperature, and the air conditioner is controlled to operate according to the first operating parameter.

Further, the air conditioner calm feeling automatic control method is applied to a floor-standing air conditioner, the floor-standing air conditioner includes an upper infrared module and a lower infrared module, and the distance between the upper infrared module and the bottom of the floor-standing air conditioner. is greater than the average height of children, and the distance between the lower infrared module and the bottom of the floor-standing air conditioner is less than the average height of children, and whether there is a target obstacle in the air blowing direction of the air conditioner when the air conditioner cooling mode is activated. Detecting whether the upper infrared module detects the infrared signal of the human body and whether the lower infrared module detects the infrared signal of the human body when starting the cooling mode of the air conditioner. including determining, if the upper infrared module does not detect the human body's infrared signal and the lower infrared module detects the human body's infrared signal, there is a second type of target obstacle, the upper infrared When the module detects the infrared signal of the human body, there is a first type of target obstacle.

Further, detecting whether the distance between the first type target obstacle and the air conditioner is less than or equal to the preset threshold is detecting the distance between the first type target obstacle and the air conditioner by an upper infrared module. and determining whether the distance between the target obstacle of the first type and the air conditioner is less than or equal to a preset threshold.

Furthermore, if the distance between the target obstacle of the first type and the air conditioner is equal to or less than the preset threshold value, obtaining the set temperature of the air conditioner, the environmental temperature change tendency in the operating environment of the air conditioner, and the air conditioner blow temperature are performed in the first type If the distance between the target obstacle and the air conditioner is less than or equal to the preset threshold value, the current environmental temperature and the set temperature in the operating environment of the air conditioner are obtained, and the difference between the current environmental temperature and the set temperature is smaller than the preset value. and if the difference between the current environmental temperature and the set temperature is smaller than a preset value, acquiring the environmental temperature change trend and the air conditioner blowing temperature in the operating environment of the air conditioner.

Further, obtaining the air conditioner blow temperature includes obtaining a current environmental temperature in an air conditioner operating environment and a current operating temperature of a predetermined evaporator coil; Including calculating the blast temperature.

Further, obtaining a first operating parameter of the air conditioner from the set temperature, the environmental temperature change tendency, and the air conditioner blast temperature, and controlling the air conditioner to operate according to the first operating parameter includes: According to the temperature change trend and the air conditioner blower temperature, the corresponding target operating state of the air conditioner wind guide strip, the target frequency of the air conditioner compressor and the target rotation speed of the air conditioner blower are obtained, and the movement state of the air conditioner wind guide strip is set to the target operating state of the air conditioner. The frequency of the compressor is adjusted to the target frequency, and the rotational speed of the air conditioner blower is adjusted to the target rotational speed.

Further, when the air conditioner cooling mode is activated, after detecting whether the target obstacle exists in the air blowing direction of the air conditioner, the target obstacle exists, and the target obstacle is the second type of target obstacle. , detecting whether the distance between the second-type target obstacle and the air conditioner is less than or equal to a preset threshold; and if the distance between the second-type target obstacle and the air conditioner is less than or equal to the preset threshold For example, activating a calm feeling mode, obtaining a second operating parameter of the air conditioner, and controlling the air conditioner to operate according to the second operating parameter.

Further, if the distance between the second type of target obstacle and the air conditioner is less than or equal to the preset threshold, activate the windless feeling mode, obtain the second operating parameter of the air conditioner, and operate according to the second operating parameter. and controlling the air conditioner to: when the distance between the second type of target obstacle and the air conditioner is less than the preset threshold, the air conditioner calm feeling mode is activated; and the current environmental parameters of the air conditioner operating environment are obtaining a target temperature according to the current wind blow index, the current local air velocity and the current turbulence intensity in the current environmental parameters; and obtaining the current local air temperature in the current environmental parameters. , calculating the difference value between the current local air temperature and the target temperature, obtaining a second operating parameter of the air conditioner according to the interval where the difference value is located, and operating according to the second operating parameter; including controlling the air conditioner.

Please refer to FIG. 4, which is a flow chart of another embodiment of the automatic control method for air conditioner calm feeling according to the present invention.

In one embodiment, the air conditioner calm feeling automatic control method includes the following steps.
In step S40, when starting the air conditioner cooling mode, it is detected whether there is a target obstacle in the air blowing direction of the air conditioner.
In this embodiment, the air conditioner is, for example, a floor-standing air conditioner, and an infrared module group including an upper infrared module group and a lower infrared module group is mounted on the floor-standing air conditioner. Here, the distance between the upper infrared module and the bottom of the floor-standing air conditioner is greater than the average height of children, and the distance between the lower infrared module and the bottom of the floor-standing air conditioner is smaller than the average height of children. The average height of children is set to 1.2m, for example, based on the actual situation. Please refer to FIG. 3, which is a scene view of an air conditioner blowing scene in an embodiment of the method for automatically controlling air conditioner calm feeling according to the present invention.

In this embodiment, both the upper infrared module and the lower infrared module can receive infrared rays within the detection range, and the detection direction of the upper infrared module and the lower infrared module is the same as or substantially the same as the blowing direction of the air conditioner. For example, parallel to the horizontal plane and perpendicular to the front of the air conditioner (the side on which the air outlet of the air conditioner is located). Since the wavelength of infrared rays emitted by the human body is mainly concentrated around 10000 nm, one interval (for example, 9500 nm to 10500 nm) can be set based on this feature of the infrared rays emitted by the human body (specifically, the actual situation (set by When the infrared wavelength detected by the lower infrared module is between 9500nm and 10500nm, and the infrared wavelength detected by the upper infrared module is not between 9500nm and 10500nm, the lower infrared module detects a human body and the upper infrared The module does not detect a human body, that is, it can be confirmed that the child, which is the second type of target obstacle, is present. When the infrared rays detected by the upper infrared module are in the range of 9500nm to 10500nm, it can be confirmed that the upper infrared module detects a human body, that is, there is an adult, which is the first type of target obstacle at present. It turns out that.

In step S50, if there is a target obstacle and the target obstacle is a first type target obstacle, it is detected whether the distance between the first type target obstacle and the air conditioner is equal to or less than a preset threshold. do.
After confirming that the target obstacle exists, the distance between the target obstacle and the air conditioner is further confirmed. In this embodiment, for example, the upper and lower infrared modules include an infrared distance measuring sensor having a pair of infrared signal emitting and receiving diodes. Use the infrared distance measurement sensor to emit a bundle of infrared light, irradiate the object and form the process of reflection, receive the signal reflected by the sensor, and use CCD image processing to emit and Process data out of time with receipt. After being processed by the signal processor, the distance to the object is calculated. That is, when it is determined that there is a target obstacle, the emitting tube of the infrared distance measuring sensor in the infrared module emits an infrared signal of a specific frequency, and the receiving tube receives the infrared signal of this kind of frequency. . When it hits the target obstacle in the infrared detection direction, the infrared signal is reflected and received by the receiving tube. After processing, the infrared feedback signal can be used to calculate the distance L between the target obstacle and the air conditioner. detect the distance L between the two types of target obstacles and the air conditioner, and detect the distance between the first type of target obstacles and the air conditioner by the upper infrared module when it is determined that the first type of target obstacle exists;

In this embodiment, the preset threshold is preset by the user. For example, it is set to 05m (this value can be freely set according to the actual situation).

In another preferred embodiment of the present invention, the PWM signal of a predetermined infrared module in the air conditioner may be detected to obtain the corresponding duty ratio when the activation of the air conditioner cooling mode is detected. The duty ratio is the ratio of the energization time to the total time in one pulse cycle. The higher the infrared emission power, the higher the corresponding duty ratio and thus the longer the infrared module can detect. Accordingly, by adjusting the infrared emission power of the infrared module, the corresponding duty ratio can be obtained, and the preset threshold value D can be calculated by the duty ratio x (D=-a*x^2+b*x+c, where a, b and c are constant values, a = -0.001, b = 0.07 and c = 0.997). For a fixed air conditioner, a fixed duty ratio x can be obtained by adjusting the infrared emission power of the infrared module according to the actual demand. Therefore, when activation of the air conditioner cooling mode is detected, the PWM signal of a predetermined infrared module in the air conditioner is detected, and the corresponding duty ratio is obtained to calculate the preset threshold value L0 using the above formula.

In step S60, if the distance between the target obstacle of the first type and the air conditioner is equal to or less than the preset threshold value, the set temperature of the air conditioner, the environmental temperature change trend in the operating environment of the air conditioner, and the air blow temperature of the air conditioner are obtained.
In step S70, a first operating parameter of the air conditioner is obtained from the set temperature, the environmental temperature change tendency and the air conditioner blowing temperature, and the air conditioner is controlled to operate according to the first operating parameter.
In this embodiment, target obstacles are divided into first type target obstacles for adults and second type target obstacles for children. Children and adults each respond to different control strategies.

In a preferred embodiment of the present invention, when the target obstacle is a first-type target obstacle, and the distance L between the first-type target obstacle and the air conditioner is equal to or less than the preset threshold value L0, the set temperature of the air conditioner Acquire the environmental temperature change trend and air conditioner blast temperature in the air conditioner operating environment, and adjust the operating state of the air conditioner wind guide strip, compressor frequency, and fan rotation speed according to the set temperature, the environmental temperature change trend in the air conditioner operating environment, and the air conditioner blast temperature. do. Here, the set temperature and the set temperature of the air conditioner refer to the target indoor control temperature that the user sets for the air conditioner using a remote controller or other means. The set temperature of the air conditioner embodies the intention of the user and also represents the adjustment target of the air conditioner. A temperature sensor is installed on the indoor unit of the air conditioner. When the air conditioner is in cooling mode, collect room temperature once every preset time. For example, one cycle is 10 minutes, the temperature value measured at present is t1, and the temperature value measured 10 minutes ago is t0. If t1 is greater than t0, the ambient temperature change trend is rising, and if t1 is less than t0, the ambient temperature change trend is falling. The air temperature of the air conditioner is the real-time temperature of the cool air blown out from the air outlet of the air conditioner indoor unit, and in this embodiment, it is calculated by a formula based on the indoor operating parameters. The formula for calculating the blast temperature is Ta=−0.534+T1*0.853+T2*0.146, where T1 is the current ambient temperature in the air conditioner operating environment and T2 is the current temperature of the given evaporator coil. is the operating temperature value of The indoor environment temperature is obtained by measuring with a temperature sensor installed on the air conditioner indoor unit. The evaporator coil is also called copper tube, and the copper tube and aluminum foil constitute a heat exchanger with a finned tube structure. The copper tube temperature is obtained by measuring a temperature sensor on the heat exchanger copper tube.

In this embodiment, according to the set temperature, the environmental temperature change trend in the operating environment of the air conditioner, and the air conditioner blowing temperature, the operating state of the air conditioner wind guide strip, the frequency of the compressor, and the rotation speed of the air blower are adjusted. That is, the air conditioner's corresponding calm mode is activated according to the set temperature, the environmental temperature change tendency in the operating environment of the air conditioner, and the blowing temperature of the air conditioner. When the air conditioner enters the windless mode, the vertical wind guide strips are closed, at this time the wind is blown out from the small holes of the closed wind guide strips to achieve the windless effect. The no-wind feeling mode is further divided into an upper no-wind feeling and a lower no-wind feeling. Here, the windless feeling means that the upper vertical wind guide strip is closed, the frequency of the compressor is limited to 35hz, and the wind speed does not exceed 35% in the case of automatic wind. No wind means that the lower vertical wind guide strip is closed, the frequency is limited to 40hz, and the wind speed does not exceed 45% in the case of automatic wind. At the same time, the upper and lower vertical wind guide strips are closed to activate the vertical windless feeling, the frequency is limited to the minimum frequency, and the wind speed does not exceed 35% in the case of automatic wind. The frequency and wind speed of the sense of no wind above are lower than the frequency and wind speed of the sense of no wind, because the upper area of the air conditioner is relatively high, the air blowing distance is relatively far, and the cooling effect at startup is better than that of the sense of no wind, so the frequency This is because the same effect can be achieved by lowering the wind speed.

According to this embodiment, when the air conditioner is in the cooling mode, when the human body approaches the air conditioner and the distance between the human body and the air conditioner is less than the preset threshold, the air conditioner is operated to implement the control strategy corresponding to the type of the human body. By doing so, it is possible to adjust the air conditioner operating parameters so that the air blown out from the air conditioner is comfortable for the human body. This prevents the human body from catching a cold due to being too close to the air conditioner, and ensures the user's health while using the air conditioner.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, step S40 includes determining whether the upper infrared module detects the infrared signal of the human body when starting the air conditioner cooling mode, and If the upper infrared module does not detect the human body's infrared signal and the lower infrared module detects the human body's infrared signal, the second There are two types of target obstacles, and when the upper infrared module detects the infrared signal of the human body, there is a first type of target obstacle.

In this embodiment, the air conditioner is, for example, a floor-standing air conditioner, and an infrared module group including an upper infrared module group and a lower infrared module group is mounted on the floor-standing air conditioner. Here, the distance between the upper infrared module and the bottom of the floor-standing air conditioner is greater than the average height of children, and the distance between the lower infrared module and the bottom of the floor-standing air conditioner is smaller than the average height of children. The average height of children is set to 1.2m, for example, based on the actual situation. Please refer to FIG. 3, which is a scene view of an air conditioner blowing scene in an embodiment of the method for automatically controlling air conditioner calm feeling according to the present invention.

In this embodiment, both the upper infrared module and the lower infrared module can receive infrared rays within the detection range, and the detection direction of the upper infrared module and the lower infrared module is the same as or substantially the same as the blowing direction of the air conditioner. For example, parallel to the horizontal plane and perpendicular to the front of the air conditioner (the side on which the air outlet of the air conditioner is located). Since the wavelength of infrared rays emitted by the human body is mainly concentrated around 10000 nm, one interval (for example, 9500 nm to 10500 nm) can be set based on this feature of the infrared rays emitted by the human body (specifically, the actual situation (set by When the infrared wavelength detected by the lower infrared module is between 9500nm and 10500nm, and the infrared wavelength detected by the upper infrared module is not between 9500nm and 10500nm, the lower infrared module detects a human body and the upper infrared The module does not detect a human body, that is, it can be confirmed that the child, which is the second type of target obstacle, is present. When the infrared rays detected by the upper infrared module are in the range of 9500nm to 10500nm, it can be confirmed that the upper infrared module detects a human body, that is, there is an adult, which is the first type of target obstacle at present. It turns out that.

In this embodiment, upper and lower infrared modules are installed, and depending on the status of infrared signals detected by the upper and lower infrared modules, it is possible to distinguish whether the target obstacle is an adult or a child.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, detecting whether the distance between the target obstacle of the first type and the air conditioner is less than or equal to the preset threshold is performed by the upper infrared module. detecting the distance between the first type target obstacle and the air conditioner; and determining whether the distance between the first type target obstacle and the air conditioner is less than or equal to a preset threshold.

In this embodiment, when there is an adult as the target obstacle of the first type, that is, when the upper infrared module detects the infrared signal of the human body, the launch tube of the infrared distance measurement sensor in the upper infrared module emits an infrared signal of a certain frequency, and the receiving tube receives an infrared signal of this kind of frequency. When it hits the first type of target obstacle in the direction of infrared detection, the infrared signal is reflected and received by the receiving tube. After processing, the infrared feedback signal can be used to calculate the distance L between the target obstacle of the first type and the air conditioner. This determines the size of L and L0.

In this embodiment, when the distance between the type 1 target obstacle and the air conditioner is equal to or less than the preset threshold value, the adult, which is the type 1 target obstacle, is relatively close to the air conditioner. It is necessary to control the blowing capacity of the air conditioner so as not to cause discomfort in the air.

In this embodiment, when there is a second type target obstacle, a child, that is, the upper infrared module does not detect the infrared signal of the human body, and the lower infrared module detects the infrared signal of the human body. In the case, the emitting tube of the infrared distance measuring sensor in the lower infrared module emits an infrared signal of a certain frequency, and the receiving tube receives the infrared signal of this kind of frequency. When the target obstacle of the second type is hit in the direction of infrared detection, the infrared signal is reflected and received by the receiving tube. After processing, the infrared feedback signal can be used to calculate the distance L between the target obstacle of the second type and the air conditioner. This determines the size of L and L0.

In this embodiment, when the distance between the second type target obstacle and the air conditioner is equal to or less than the preset threshold value, the child, which is the second type target obstacle, is relatively close to the air conditioner, and the wind from the air conditioner is It is necessary to control the blowing capacity of the air conditioner so as not to cause discomfort in the air.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, step S60 is, if the distance between the target obstacle of the first type and the air conditioner is equal to or less than the preset threshold value, the current environmental temperature in the air conditioner operating environment is and obtaining a set temperature, detecting whether a difference between the current environmental temperature and the set temperature is smaller than a preset value; and determining whether the difference between the current environmental temperature and the set temperature is a preset value. If it is smaller, it includes obtaining the environmental temperature change trend and the air conditioner blowing temperature in the air conditioner operating environment.

In this embodiment, the practical significance of the calm feeling function is that when the room temperature has already been lowered and reaches or is close to the target set temperature, then while maintaining the current room temperature, It is necessary to lower the wind speed and compressor frequency so as to reduce the effect of cold wind blowing on people as much as possible. Therefore, it is necessary to detect whether or not the difference between the current environment temperature T1 and the air conditioner set temperature Ts is smaller than the preset value. The preset value is set to 2 by the user according to the actual situation. That is, subsequent operations are performed only if T1-Ts<2. The comfort level of the air conditioner has been enhanced, and the ability of the air conditioner to lower the temperature has been guaranteed.

Furthermore, in an embodiment of the method for automatically controlling air conditioner calmness feeling of the present invention, acquiring the air conditioner blowing temperature includes acquiring the current environmental temperature in the air conditioner operating environment and the current operating temperature of the predetermined evaporator coil. and calculating an air conditioner blow temperature according to the current ambient temperature and current operating temperature.

In this embodiment, the air temperature of the air conditioner is the real-time temperature of the cool air blown out from the air outlet of the air conditioner indoor unit, and is obtained by calculating with a formula based on the indoor operating parameters in this embodiment. The formula for calculating the blast temperature is Ta=−0.534+T1*0.853+T2*0.146, where T1 is the current ambient temperature in the air conditioner operating environment and T2 is the current temperature of the given evaporator coil. is the operating temperature value of The indoor environment temperature is obtained by measuring with a temperature sensor installed on the air conditioner indoor unit. The evaporator coil is also called copper tube, and the copper tube and aluminum foil constitute a heat exchanger with a finned tube structure. The copper tube temperature is obtained by measuring a temperature sensor on the heat exchanger copper tube.

In this embodiment, by obtaining the current air temperature and comparing the current air temperature with the set temperature, the air conditioner operating parameters are controlled so as to achieve self-adaptive adjustment of the air temperature of the air conditioner.

Further, in an embodiment of the method for automatically controlling air conditioner calm feeling according to the present invention, step S70 determines the target operation state of the air conditioner wind guide strip and the air conditioner compressor target according to the set temperature, the environmental temperature change tendency and the air conditioner blower temperature. Obtaining a frequency and a target rotation speed of an air conditioner blower, adjusting the movement state of an air conditioner wind guide strip to the target operating state, adjusting the frequency of an air conditioner compressor to the target frequency, and adjusting the rotation speed of an air conditioner blower to the target rotation speed. .

In this embodiment, according to the set temperature, the environmental temperature change trend in the operating environment of the air conditioner, and the air conditioner blowing temperature, adjusting the operating state of the air conditioner wind guide strip, the frequency of the compressor and the rotation speed of the air blower includes:
A) When the environmental temperature change trend is an upward trend, adjusting the operating state of the air conditioner wind guide strip, the compressor frequency and the fan rotation speed according to the air conditioner set temperature Ts and the air conditioner blow temperature Ta
1) When Ts<25° C., as shown in FIG.
When Ta>29° C., all upper and lower doldrums are turned off.
When 27° C.<Ta≦29° C., the feeling of no wind is turned on and the feeling of no wind is turned off.
When 25° C.<Ta≦27° C., the doldrums above and below dozes are alternately turned on and off. That is, the upper and lower vertical air guide strips are alternately opened and closed. Specifically, first turn on the sense of no wind, operate for the first preset time, turn off the sense of no wind at the same time, turn on the sense of no wind at the same time, operate for the second preset time, and again sense the no wind. off, turn on doldrums, and drive for the first preset time. The above process is cycled and alternated until Ta < 25°C. For example, when 25° C.<Ta≦27° C., the sense of no wind at the top and the sense of no wind at the bottom are alternately turned on and off. First, turn on the sense of no wind, operate for t1=120s, turn off the sense of no wind, turn on the sense of no wind, operate for time t2=60s, turn off the sense of no wind again, and operate with the sense of no wind. to turn on. The above process is cycled and run alternately until Ta < 25°C.
If Ta<25° C., turn on the upper and lower doldrums at the same time.
2) When 25° C.≦Ts<27° C., as shown in FIG.
When Ta>29° C., all upper and lower doldrums are turned off.
When 27° C.<Ta≦29° C., the feeling of no wind is turned on and the feeling of no wind is turned off.
When Ts<Ta≦27° C., the sense of no wind upside down and the sense of downside down wind are alternately turned on and off. That is, the upper and lower vertical air guide strips are alternately opened and closed. Specifically, first turn on the sense of no wind, operate for the first preset time, turn off the sense of no wind at the same time, turn on the sense of no wind at the same time, operate for the second preset time, and again sense the no wind. off, turn on doldrums, and drive for the first preset time. The above process is cyclically alternated until Ta<Ts. For example, when Ts<Ta≦27° C., the sense of topless wind and the sense of bottomless wind are alternately turned on and off. First, turn on the sense of no wind, operate for t1=120s, turn off the sense of no wind, turn on the sense of no wind, operate for time t2=60s, turn off the sense of no wind again, and operate with the sense of no wind. to turn on. The above process is circulated and operated alternately until Ta<Ts.
If Ta<Ts, the upper and lower doldrums are turned on at the same time.
3) When 27° C.≦Ts<29° C., as shown in FIG.
When Ta>29° C., all upper and lower doldrums are turned off.
When Ts<Ta≦29° C., the sense of no wind upside down and the sense of downside down wind are alternately turned on and off. That is, the upper and lower vertical air guide strips are alternately opened and closed. Specifically, first turn on the sense of no wind, operate for the first preset time, turn off the sense of no wind at the same time, turn on the sense of no wind at the same time, operate for the second preset time, and again sense the no wind. off, turn on doldrums, and drive for the first preset time. The above process is cyclically alternated until Ta<Ts. For example, when Ts<Ta≦29° C., the sense of no wind upside down and the sense of downside down wind are alternately turned on and off. First, turn on the sense of no wind, operate for t1=120s, turn off the sense of no wind, turn on the sense of no wind, operate for time t2=60s, turn off the sense of no wind again, and operate with the sense of no wind. to turn on. The above process is circulated and operated alternately until Ta<Ts.
If Ta<Ts, the upper and lower doldrums are turned on at the same time.
4) If Ts≧29° C., turn off the upper and lower windlessness. That is, as shown in FIG. 8, the upper and lower vertical wind guide strips are opened at the same time to set the wind speed to automatic control.
B) When the environmental temperature change trend is a downward trend, adjusting the operating state of the air conditioner wind guide strip, the compressor frequency and the fan rotation speed according to the air conditioner set temperature Ts and the air conditioner blow temperature Ta
1) When Ts<24° C., as shown in FIG.
If Ta>28° C., turn off all the upper and lower doldrums. That is, the upper and lower vertical air guide strips are opened at the same time, and the air speed is automatically controlled.
When 26° C.<Ta≦28° C., the feeling of no wind is turned on and the feeling of no wind is turned off.
When 24° C.<Ta≦26° C., the doldrums above and below dozes are alternately turned on and off. That is, the upper and lower vertical air guide strips are alternately opened and closed. Specifically, first turn on the sense of no wind, operate for the first preset time, turn off the sense of no wind at the same time, turn on the sense of no wind at the same time, operate for the second preset time, and again sense the no wind. off, turn on doldrums, and drive for the first preset time. The above process is cycled and alternated until Ta < 24°C. For example, when 24° C.<Ta≦26° C., the doldrums above and below dozes are alternately turned on and off. First, turn on the sense of no wind, operate for t1=120s, turn off the sense of no wind, turn on the sense of no wind, operate for time t2=60s, turn off the sense of no wind again, and operate with the sense of no wind. to turn on. The above process is cycled and run alternately until Ta < 24°C.
If Ta<24° C., turn on the top and bottom windless feeling at the same time.
2) When 24° C.≦Ts<26° C., as shown in FIG.
If Ta>28° C., turn off all the upper and lower doldrums. That is, the upper and lower vertical air guide strips are opened at the same time, and the air speed is automatically controlled.
When 26° C.<Ta≦28° C., the feeling of no wind is turned on and the feeling of no wind is turned off.
When Ts<Ta≦26° C., the sense of no wind upside down and the sense of downside down wind are alternately turned on and off. That is, the upper and lower vertical air guide strips are alternately opened and closed. Specifically, first turn on the sense of no wind, operate for the first preset time, turn off the sense of no wind at the same time, turn on the sense of no wind at the same time, operate for the second preset time, and again sense the no wind. off, turn on doldrums, and drive for the first preset time. The above process is cyclically alternated until Ta<Ts. For example, when Ts<Ta≦26° C., the sense of topless wind and the sense of bottomless wind are alternately turned on and off. First, turn on the sense of no wind, operate for t1=120s, turn off the sense of no wind, turn on the sense of no wind, operate for time t2=60s, turn off the sense of no wind again, and operate with the sense of no wind. to turn on. The above process is circulated and operated alternately until Ta<Ts.
If Ta<Ts, the upper and lower doldrums are turned on at the same time.
3) When 26° C.≦Ts<28° C., as shown in FIG.
When Ta>28° C., all upper and lower doldrums are turned off.
When Ts<Ta≦28° C., the sense of no wind upside down and the sense of downside down wind are alternately turned on and off. That is, the upper and lower vertical air guide strips are alternately opened and closed. Specifically, first turn on the sense of no wind, operate for the first preset time, turn off the sense of no wind at the same time, turn on the sense of no wind at the same time, operate for the second preset time, and again sense the no wind. off, turn on doldrums, and drive for the first preset time. The above process is cyclically alternated until Ta<Ts. For example, when Ts<Ta≦28° C., the sense of topless wind and the sense of bottomless wind are alternately turned on and off. First, turn on the sense of no wind, operate for t1=120s, turn off the sense of no wind, turn on the sense of no wind, operate for time t2=60s, turn off the sense of no wind again, and operate with the sense of no wind. to turn on. The above process is circulated and operated alternately until Ta<Ts.
If Ta<Ts, the upper and lower doldrums are turned on at the same time.
4) When Ts≧28° C., as shown in FIG. 8, the upper and lower windlessness are all turned off.

Here, turning on the windless feeling means that the upper vertical wind guide strip is closed, the frequency of the compressor is limited to 35hz (this value can be set according to the actual situation), and the wind speed is 35% if the automatic wind. (this value can be set according to the actual situation). Turning on the feeling of no wind means that the lower vertical wind guide strip is closed, the frequency is limited to 40hz (this value can be set according to the actual situation), and the wind speed is 45% (this value is the actual (can be set depending on the situation). At the same time, turning on the top and bottom windless feeling closes the top and bottom vertical wind guide strips, the frequency is limited to the minimum frequency, and the wind speed does not exceed 35% in the case of automatic wind. The frequency and wind speed of the sense of no wind above are lower than the frequency and wind speed of the sense of no wind, because the upper area of the air conditioner is relatively high, the air blowing distance is relatively far, and the cooling effect at startup is better than that of the sense of no wind, so the frequency This is because the same effect can be achieved by lowering the wind speed.

In this embodiment, when it is detected that the distance between the adult and the air conditioner is smaller than the preset value, the automatic calm feeling control operation is performed based on the relationship between the set temperature of the air conditioner, the current temperature change trend, and the blowing air temperature. to run. It is mainly used by adjusting the opening and closing of the upper and lower vertical wind guide strips, controlling the frequency of the compressor, and adjusting the rotation speed of the indoor blower, so that the air blowing of the air conditioner indoor unit is more comfortable and smart. improve the user experience.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, after step S40, if a target obstacle exists and the target obstacle is a second type target obstacle, the second type target obstacle detecting whether or not the distance between the target obstacle and the air conditioner of the second type is equal to or less than the preset threshold; obtaining a second operating parameter of the air conditioner and controlling the air conditioner to operate according to the second operating parameter.

In a preferred embodiment of the present invention, when the target obstacle is a second type target obstacle and the distance L between the second type obstacle and the air conditioner is equal to or less than the preset threshold value L0, the windless feeling mode under the air conditioner , first obtain the local air temperature, wind sensation index, local air velocity, fan rotation speed, and turbulence intensity in the current air conditioner operating environment, and based on the wind sensation index, local air velocity, and turbulence intensity A theoretical target temperature is obtained by calculation, a target temperature is obtained according to the theoretical target temperature and the set temperature, and finally an operating parameter is obtained according to the target temperature and the local air temperature.

In this embodiment, when the air conditioner is in the cooling mode, when the human body approaches the air conditioner and the distance between the human body and the air conditioner is less than the preset threshold, the air conditioner is operated to implement the control strategy corresponding to the type of the human body. By doing so, it is possible to adjust the air conditioner operating parameters so that the air blown out from the air conditioner is comfortable for the human body. This prevents the human body from catching a cold due to being too close to the air conditioner, and ensures the user's health while using the air conditioner.

Further, in an embodiment of the air conditioner calm feeling automatic control method of the present invention, if the distance between the second type target obstacle and the air conditioner is equal to or less than the preset threshold value, the bottom calm feeling mode is activated and the second type of air conditioner is activated. and controlling the air conditioner to operate according to the second operating parameter, when the distance between the second type target obstacle and the air conditioner is less than or equal to the preset threshold, the air conditioner under windless mode obtaining the current environmental parameters of the air conditioner operating environment, and obtaining the target temperature according to the current wind blow index, the current local airflow velocity and the current turbulence intensity in the current environmental parameters; Obtaining a current local air temperature in the current environmental parameters, calculating a difference value between the current local air temperature and the target temperature, and performing a second operation of the air conditioner according to the interval where the difference value is located Obtaining a parameter and controlling the air conditioner to operate according to the second operating parameter.

In this embodiment, after turning on the feeling of no wind, the lower wind strip of the air conditioner may be closed so that the air from the air conditioner is blown out through the small holes of the wind strip. This reduces the user's sensitivity to the wind from the air conditioner.

In one embodiment of the present invention, the local air temperature is determined by the temperature of the blast, and the blast temperature tc is collected by the quiescent type that is activated. It is tc1 when starting the feeling of no wind, tc2 when starting the feeling of no wind, and tc3 when starting the feeling of overall no wind. Calculate the local air temperature value ta at 2.5 meters based on the relevant formula. It is ta1 when starting the feeling of no wind, ta2 when starting the feeling of no wind, and ta3 when starting the feeling of overall no wind. The relational expression between the air outlet temperature and the local air temperature is ta=atc+b (where ta is the local air temperature and tc is the air outlet temperature). Both a and b are constants, and the values of a and b corresponding to different doldrums types are also different. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the blower port temperature and the local air temperature is ta=0.2307tc+23.955. If it is determined that the current type of windlessness is the lower calmness, the temperature collected by the predetermined temperature sensor at the lower blower outlet, that is, the blower outlet temperature tc, is obtained and substituted into the above formula to obtain the current local air temperature. get

In the present example, the wind feeling index is determined by the current doldrums type. The wind blowing index DR1 for the feeling of no wind above is set to 5, the feeling of wind blowing index DR2 for feeling of no wind below is set to 10, and the wind blowing feeling index DR3 for the feeling of overall no wind is set in advance to 5. For example, when it is determined that the current type of feeling of calmness is the feeling of feeling of no wind, the current feeling of windy index DR=10 is acquired.

In one embodiment of the present invention, the local airflow velocity is related to factors such as wind tunnel structure, fan speed, and the like. Approximately, the local air velocity Va can be considered to be related only to the rotational speed F (F=1% to 100%) of the blower (that is, the blower of the air conditioner, hereinafter the same). The relational expression between the local air velocity Va and the blower rotation speed F is Va=cF+d, where c and d are both constants, and the values of c and d corresponding to different calm feeling types are also different. That is, the sense of no wind corresponds to c1 and d1, the sense of no wind to the bottom corresponds to c2 and d2, and the feeling of no wind to the whole corresponds to c3 and d3. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the local air velocity Va and the fan rotation speed F is Va=0.0352F+0.1366. When it is determined that the current type of no-wind feeling is the lower no-wind feeling, the current local air-flow velocity Va is, for example, an initially selected value of 0.3 m/s. The current rotation speed F of the fan can be obtained.

In one embodiment of the present invention, turbulence intensity is related to air channel structure, fan speed and its stability. Approximately, the turbulence intensity can be regarded as related only to the fan speed. The relational expression between the turbulence intensity Tu and the blower rotation speed F is Tu=eF ² +fF+g, where e, f, and g are all constants, and the values of e, f, and g corresponding to different types of calmness are expressed. The values are also different. That is, e1 = 0, f1 = 0, g1 = 36.4 for upper doldrums, e2 = -12.858, f2 = 29.244, g2 = 21.424 for lower doldrums, and e3 = 0 for overall doldrums. , f3=0, g3=29.6. For example, when the type of feeling of no wind is the feeling of no wind, the relational expression between the turbulence intensity Tu and the fan rotation speed F is Tu=−12.858F ² +29.244F+21.424. When it is determined that the current type of feeling of calm is the feeling of no wind, the current rotation speed F of the blower is obtained and substituted into the above formula to obtain the current turbulence intensity Tu.

In this embodiment, the current set temperature is the temperature value preset by the user. For example, after the user starts the air conditioner, he sets a temperature, such as 25° C., that is, the current set temperature.

In 1988, Fanger proposed a model for predicting wind blow discomfort. Based on this model, IS07730-2005 uses the wind sensation index DR to express the degree of human discomfort caused by the wind sensation. The expression of the wind blowing index is DR = (34-tas) (Va-0.05) 0.62 (0.37 x Va x Tu + 3.14), where DR is the wind blowing index, If DR > 100% then DR = 100%, tas is the logical target temperature in degrees Celsius, Va is the local air velocity in m/s and Tu is the turbulence intensity. .

The theoretical target temperature tas is obtained by substituting the current wind sensation index DR, the current local air velocity Va, and the current turbulence intensity into the above wind sensation index expression.

In one embodiment of the present invention, if the target obstacle is a child, the target temperature can be obtained from the theoretical target temperature and the current set temperature.
When the set temperature is lower than 24°C, if the theoretical target temperature tas is lower than 24°C, the value of the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 29°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

When the set temperature is 24°C or higher and 28°C or lower, if the theoretical target temperature tas is lower than 24°C, the value of the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 28°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

If the set temperature is higher than 28°C and the theoretical target temperature tas is lower than 24°C, the target temperature is set to 24°C. If the theoretical target temperature tas is higher than 29°C, the value of the target temperature is set to 29°C. If the theoretical target temperature is between 24°C and 29°C, then the theoretical target temperature is the target temperature.

After obtaining the target temperature, compare the target temperature tas with the current local air temperature ta. First, it is determined whether the value of the difference between tas and ta is greater than a preset value. For example, it is determined whether the difference between tas and ta is greater than 1, and if the difference between tas and ta is not greater than 1, the air conditioner is operated while maintaining the current parameters. If the value of the difference between tas and ta is greater than one, two situations exist. First, tas is greater than ta and the difference value is greater than one. Second, tas is less than ta and the difference value is greater than one. That is, there are two intervals in the ta-tas difference value. The first interval is (1, ∞), that is, tas is less than ta and the difference value is greater than one. The second interval is (-∞, -1), ie tas is greater than ta and the difference value is greater than one. When the value of the difference between ta and tas is in the first interval, the compressor frequency is increased by a preset value. For example, the compressor frequency is increased by 1hz and the operating time is maintained for 3min. When the value of the difference between ta and tas is in the second interval, lower the compressor frequency by a preset value. For example, the compressor frequency is lowered by 1 hz and the operating time is maintained for 3 minutes. In another embodiment of the invention, when the compressor frequency is lowered to a minimum value, eg 20 hz, the initially selected value of 0.3 m/s for the local airflow velocity is lowered by a preset value, eg 0.1. That is, when the compressor frequency is lowered to 20 hz, the local air velocity is lowered to 0.2 m/s. When there is no wind, the relational expression Va=0.0352F+0.1366 between the local air velocity Va and the blower rotation speed F is obtained by calculating the blower rotation speed F=1.8011 at this time. Then, the compressor is operated at the current compressor frequency of 20 hz and the blower rotation speed at this time is 1.8011, and the operating time is 3 minutes (this time can be set according to actual demand and is not limited here).

In this embodiment, when it detects that the distance between the child and the air conditioner is less than the preset value, it activates the windless mode under the air conditioner, and realizes the self-adaptive control in the windless mode of the air conditioner, so that the user can use it better. The operating parameters of the air conditioner are automatically controlled according to the environmental parameters of the operating environment of the air conditioner, so as to provide a feeling of comfort.

By the way, an embodiment of the present invention further proposes a computer-readable storage medium. An air conditioner calm feeling automatic control program is stored in the computer-readable storage medium, and when the air conditioner calm feeling automatic control program is executed by the processor, the above steps of the air conditioner calm feeling automatic control method are realized. .

Specific embodiments of the computer-readable storage medium of the present invention are basically the same as the above-described embodiments of the air conditioner calm feeling automatic control method, and will not be repeated here.

As used herein, the terms "comprise," "comprise," or any other variation imply non-exclusive inclusion, indicating that a set of elements, a process, method, article, or system, not only those elements, but also those elements. to include other elements not listed in , or to include elements unique to such processes, methods, articles or systems, need to be explained. In the absence of any further limitation, an element limited by the phrase "comprising a" implies the presence of other identical elements in the process, method, article or system containing that element. Do not exclude.

The numbers of the above examples of the present invention are only for explanation and do not indicate the superiority or inferiority of the examples.

From the above description of the embodiments, it is clear to those skilled in the art that the method of the above embodiment is a method of adding a general-purpose hardware platform required for software (of course, hardware can be used, but the former is a better implementation method in many cases). It can be understood that it can be realized by Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product, essentially or the part that contributes to the prior art. The computer software product can be stored in the above storage media (such as ROM/RAM, magnetic disk, optical disk), and a terminal device (mobile phone, computer, server, air conditioner, network device, etc.) contains several instructions that cause it to perform the methods described in each embodiment of the invention.

The above are only preferred embodiments of the present invention, which are not intended to limit the protection scope of the present invention. Equivalent structure or equivalent flow transformations made using the contents of the specification and drawings of the present invention, or direct or indirect application to other related technical fields, are covered by the patent protection scope of the present invention for the same reason. include.

Claims (9)

detecting whether or not there is a target obstacle in the air blowing direction of the air conditioner, and whether or not the distance between the target obstacle and the air conditioner is equal to or less than a preset threshold ;
If the distance between the target obstacle and the air conditioner is equal to or less than the threshold , a calm mode corresponding to the target obstacle is activated, an operation parameter of the air conditioner is obtained, and the air conditioner is controlled to operate according to the operation parameter. including
activating a calm mode corresponding to the target obstacle, obtaining operating parameters of the air conditioner, and controlling the air conditioner to operate according to the operating parameters;
Based on a predetermined relationship between the wind sensation index, local air velocity, turbulence intensity, and temperature, and the set value of the wind sensation index corresponding to the no wind sensation mode corresponding to the target obstacle. obtaining a target value for the local air temperature by
obtaining a current value of the local air temperature;
calculating a difference value between the target value and the current value, obtaining an operating parameter of the air conditioner according to the section where the difference value is located, and controlling the air conditioner to operate according to the operating parameter;
An air conditioner calm feeling automatic control method comprising : The relationship is
DR = (34-tas) (Va-0.05) 0.62 (0.37 x Va x Tu + 3.14)
is a relationship expressed by the formula of
In the above formula,
DR is the wind blowing index,
tas is the temperature,
Va is the local air velocity,
Tu is the turbulence intensity,
2. The method for automatically controlling a feeling of no wind in an air conditioner according to claim 1. The air conditioner calm feeling automatic control method is applied to a floor-standing air conditioner, the floor-standing air conditioner includes an upper infrared module and a lower infrared module, and the distance between the upper infrared module and the bottom of the floor-standing air conditioner is , greater than the distance between the lower infrared module and the bottom of the floor-standing air conditioner;
Detecting whether or not there is a target obstacle in the air blowing direction of the air conditioner includes:
determining whether the upper infrared module has detected the infrared signal of the human body and whether the lower infrared module has detected the infrared signal of the human body;
If the upper infrared module does not detect the infrared signal of the human body and the lower infrared module detects the infrared signal of the human body, it is determined that there is a first type target obstacle;
The method according to claim 1 or 2 , wherein when the upper infrared module detects the infrared signal of the human body, it is determined that the second type of target obstacle exists. Detecting whether or not the distance between the target obstacle and the air conditioner is equal to or less than the threshold includes:
detecting the distance between the target obstacle of the first/second type and the air conditioner by the infrared module;
4. The method according to claim 3, further comprising determining whether the distance between the first/second type target obstacle and the air conditioner is equal to or less than the threshold value . . Obtaining an operating parameter of the air conditioner according to the interval in which the difference value is located, and controlling the air conditioner to operate according to the operating parameter;
2. If the difference value is in a first preset interval, increasing the predetermined compressor frequency by a first preset value for a duration of a first preset time or 2. The method for automatic control of air conditioner calm feeling according to 2. Obtaining an operating parameter of the air conditioner according to the interval in which the difference value is located, and controlling the air conditioner to operate according to the operating parameter;
2. The method of claim 1 , further comprising reducing the predetermined compressor frequency by a second preset value to a duration of a second preset time if the difference value is in a second preset interval. 3. The automatic control method for air conditioner calm feeling according to 2 . If the difference value is in the second preset interval, then reducing the predetermined compressor frequency by the second preset value for a duration of the second preset time comprises:
If the difference value is in the second preset interval, decreasing the predetermined compressor frequency by a second preset value, and detecting whether the predetermined compressor frequency after adjustment is the preset minimum value. When,
If the predetermined compressor frequency after adjustment is the preset minimum value, reduce the current local airflow rate by the third preset value, and according to the current local airflow rate after adjustment, obtain the target fan speed, and continue 7. The method of claim 6 , further comprising setting the time as a second preset time. A memory, a processor, and an air conditioner calm feeling automatic control program stored in said memory and executable on said processor, when said air conditioner calm feeling automatic control program is executed by said processor. An air conditioner characterized by realizing the steps of the air conditioner calm feeling automatic control method described in the paragraph. An air conditioner calm feeling automatic control program is stored, and when the air conditioner calm feeling automatic control program is executed by a processor, the steps of the air conditioner calm feeling automatic control method according to any one of claims 1 to 7 are realized. A computer-readable storage medium characterized by:

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