A control method and device for preventing direct blowing of air conditioner

Abstract

The present invention provides a control method and device for preventing direct blowing of an air conditioner, wherein the air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate, and the method comprises: detecting the distance between a human body and the lower air outlet; and adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet. The present invention can control the air outlet according to the distance between the human body and the lower air outlet, can effectively prevent the air conditioner from directly blowing the human body, improves the human body comfort, and solves the technical problem of poor control effect of preventing direct blowing of air conditioners in related technologies.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning control, and in particular to a control method and device for preventing direct blowing of an air-conditioning. Background Art

[0002] Air conditioners are commonly used household appliances in the home. With the improvement of living standards, people's requirements for air conditioners have also increased, and they are increasingly pursuing more comfortable and healthier air conditioners.

[0003] Generally speaking, we can adjust the angle of the air-conditioning fan to change the wind direction and prevent the air-conditioning from blowing directly, but this is only a simple improvement and cannot achieve good results, so the user experience is poor. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide a control method and device for air conditioning anti-direct blowing, so as to solve the technical problem of poor air conditioning anti-direct blowing control effect in the related art.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, a control method for preventing direct blowing of an air conditioner is provided, wherein the air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate, and the method comprises: detecting the distance between a human body and the lower air outlet; and adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet.

[0007] Optionally, adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet includes: when the distance is less than a first distance threshold, controlling the second air guide plate to be in a first state so that the lower air outlet is closed; when the distance is greater than or equal to the first distance threshold and less than a second distance threshold, controlling the state of the second air guide plate to change according to the distance so that the opening angle of the lower air outlet decreases as the distance decreases; when the distance is greater than or equal to the second distance threshold, controlling the state of the second air guide plate to be in the second state so that the opening angle of the lower air outlet reaches a maximum.

[0008] Optionally, adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between a human body and the lower air outlet also includes: obtaining the indoor temperature when the distance is greater than or equal to the second distance threshold; and controlling the first air guide plate to a third state so that the opening angle of the upper air outlet is a first angle when the indoor temperature is greater than a preset temperature threshold.

[0009] Optionally, the method further includes: acquiring an indoor temperature and a set temperature; and adjusting a fan speed and / or a compressor frequency of the air conditioner according to the indoor temperature and the set temperature.

[0010] Optionally, adjusting the fan speed and / or compressor frequency of the air conditioner according to the indoor temperature and the set temperature includes: when the indoor temperature is greater than a preset temperature threshold and / or the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, controlling the fan speed to increase by a specified speed, and controlling the compressor frequency to reach a first frequency threshold; when the indoor temperature is less than or equal to the preset temperature threshold, and the difference between the indoor temperature and the set temperature does not reach the temperature difference threshold, the frequency of the compressor is controlled based on the target temperature, and the fan speed of the air conditioner is reduced by a specified number of revolutions for every 1°C decrease in the difference between the indoor temperature and the set temperature until the target speed threshold is reached, wherein the target temperature is lower than the set temperature.

[0011] Optionally, when the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, the method further includes: taking the midpoint of the lower air outlet as a dividing line, detecting the position of a human body according to a specified period, and when it is detected that the position of a human body is on one side of the air conditioner, controlling the second air guide plate to deflect to the other side.

[0012] Optionally, adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between a human body and the lower air outlet includes: when the second air guide plate is adjusted to a first specified angle or a second specified angle according to the distance between a human body and the lower air outlet, adjusting the angle of the first air guide plate to a far wind position, the first specified angle corresponding to the closing of the lower air outlet, and the second specified angle corresponding to the opening angle of the lower air outlet as a first opening angle; when the second air guide plate is adjusted to a third specified angle according to the distance between a human body and the lower air outlet, adjusting the angle of the first air guide plate to a near wind position, the third specified angle corresponding to the opening angle of the lower air outlet as a second opening angle, and the second opening angle being greater than the first opening angle.

[0013] According to another aspect of the present invention, a control device for preventing direct blowing of an air conditioner is also provided, wherein the air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate, and the device comprises: a distance detection unit, for detecting the distance between a human body and the lower air outlet; and a state adjustment unit, for adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet.

[0014] Optionally, the state adjustment unit is also used to: when the distance is less than a first distance threshold, control the second air guide plate to be in a first state so that the lower air outlet is closed; when the distance is greater than or equal to the first distance threshold and less than a second distance threshold, control the state of the second air guide plate to change according to the distance so that the opening angle of the lower air outlet decreases as the distance decreases; when the distance is greater than or equal to the second distance, control the state of the second air guide plate to be in a second state so that the opening angle of the lower air outlet reaches a maximum.

[0015] Optionally, the state adjustment unit is also used to: obtain the indoor temperature when the distance is greater than or equal to the second distance; and control the first air guide plate to the third state when the indoor temperature is greater than a preset temperature threshold so that the opening angle of the upper air outlet is the first angle.

[0016] Optionally, the device also includes: an indoor temperature and set temperature acquisition unit, used to acquire the indoor temperature and the set temperature; and a parameter adjustment unit, used to adjust the fan speed and / or compressor frequency of the air conditioner according to the indoor temperature and the set temperature.

[0017] Optionally, the parameter adjustment unit is further used to: when the indoor temperature is greater than a preset temperature threshold and / or the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, control the fan speed to increase a specified speed, and control the compressor frequency to reach a first frequency threshold; when the indoor temperature is less than or equal to the preset temperature threshold, and the difference between the indoor temperature and the set temperature does not reach the temperature difference threshold, the frequency of the compressor is controlled based on the target temperature, and the fan speed of the air conditioner is reduced by a specified number of revolutions for every 1°C decrease in the difference between the indoor temperature and the set temperature until the target revolution threshold is reached, wherein the target temperature is lower than the set temperature;

[0018] Optionally, when the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, the device further includes: a deflection control unit, for detecting the position of a human body according to a specified period using the midpoint of the lower air outlet as a dividing line, and controlling the second air guide plate to deflect to the other side when it is detected that the human body is on one side of the air conditioner.

[0019] Optionally, the state adjustment unit is also used for: when the second air guide plate is adjusted to a first specified angle or a second specified angle according to the distance between a human body and the lower air outlet, adjusting the angle of the first air guide plate to the far wind position, the first specified angle corresponds to the closing of the lower air outlet, and the second specified angle corresponds to the opening angle of the lower air outlet as a first opening angle; when the second air guide plate is adjusted to a third specified angle according to the distance between a human body and the lower air outlet, adjusting the angle of the first air guide plate to the near wind position, the third specified angle corresponds to the opening angle of the lower air outlet as a second opening angle, and the second opening angle is greater than the first opening angle.

[0020] The present invention provides a control method for preventing direct blowing of an air conditioner, wherein the air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate. The method detects the distance between a human body and the lower air outlet; according to the distance between the human body and the lower air outlet, the state of the first air guide plate and / or the second air guide plate is adjusted, that is, the air outlet is controlled according to the distance between the human body and the lower air outlet, which can effectively prevent the air conditioner from directly blowing the human body, improves the human body comfort, and solves the technical problem of poor control effect of preventing direct blowing of the air conditioner in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of a control method for preventing direct blowing of an air conditioner provided by an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of another air conditioner direct blowing prevention control method provided by an embodiment of the present invention;

[0023] Figure 3A is a schematic diagram of a maximum movement angle of an air deflector provided by an embodiment of the present invention;

[0024] Figure 3B is a schematic diagram of another maximum movement angle of an air deflector provided by an embodiment of the present invention;

[0025] Figure 3C is a schematic diagram of a closing angle of an air guide plate provided by an embodiment of the present invention;

[0026] Figure 3D is a schematic diagram of the movement angles of large and small air guide plates provided by an embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of a control device for preventing direct blowing of an air conditioner provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0029] Embodiment 1

[0030] According to an embodiment of the present invention, a control method for preventing direct blowing of an air conditioner is provided. Figure 1 The method may be performed by a control device for preventing direct blowing of an air conditioner. The air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate. The method may include:

[0031] Step S101, detecting the distance between a human body and the lower air outlet.

[0032] In this step, a distance measuring module can be provided on the air conditioner to detect the distance between the human body and the lower air outlet. Preferably, it can be a millimeter wave radar. Optionally, an infrared detection module can be provided on the air conditioner to detect whether there is a human body near the air conditioner. When a human body is detected, the distance measuring module is controlled to measure the distance between the human body and the lower air outlet. This method can avoid the distance measuring module being in a working state all the time, thereby reducing energy consumption.

[0033] Step S102: adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet.

[0034] In this step, depending on the distance between the human body and the lower air outlet, only the second air guide plate can be adjusted, or only the first air guide plate can be adjusted, or both can be adjusted simultaneously, or both can be adjusted successively.

[0035] Optionally, adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet includes: when the distance is less than a first distance threshold, controlling the second air guide plate to be in a first state so that the lower air outlet is closed; when the distance is greater than or equal to the first distance threshold and less than the second distance threshold,

[0036] The state of the second air guide plate is controlled to change according to the distance, so that the opening angle of the lower air outlet decreases as the distance decreases; when the distance is greater than or equal to the second distance

[0037] When the distance is less than the first distance threshold, the state of the second air guide plate is controlled to be the second state, so that the opening angle of the lower air outlet reaches the maximum. Wherein, the distance being less than the first distance threshold indicates that the human body is relatively close to the lower air outlet. Optionally, the first distance threshold can be 0-1m.

[0038] Preferably, controlling the state of the second air guide plate to change according to the distance so that the opening angle of the lower air outlet decreases as the distance decreases may specifically include:

[0039] The air outlet angle is reduced by 15° at 1m below the air conditioner, which can effectively prevent cold air from blowing directly on the human body.

[0040] Optionally, the adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet further includes: when the distance is greater than or equal to the second air guide plate

[0041] When the indoor temperature is greater than the preset temperature threshold, the first air guide plate is controlled to be in the third state so that the opening angle of the upper air outlet is

[0042] The distance being greater than or equal to the second distance threshold indicates that the human body is far from the lower air outlet. Optionally, the second distance threshold may be 3-5 m.

[0043] Optionally, the first air guide plate is in the third state, that is, the near windshield, that is, the gear position of (60°-80°).

[0044] Optionally, the method further includes: acquiring indoor temperature and set temperature; and adjusting the fan speed and / or compressor frequency of the air conditioner according to the indoor temperature and the set temperature.

[0045] Optionally, the fan speed and / or compressor frequency of the air conditioner can be adjusted according to the temperature difference between the indoor temperature and the set temperature.

[0046] Optionally, the fan speed and / or compressor frequency of the air conditioner are adjusted according to the indoor temperature and the set temperature, including: when the indoor temperature is greater than a preset temperature threshold and / or the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, the fan speed is controlled to increase by a specified speed, and the compressor frequency is controlled to reach a first frequency threshold; when the indoor temperature is less than or equal to the preset temperature threshold, and the difference between the indoor temperature and the set temperature does not reach the temperature difference threshold, the frequency of the compressor is controlled based on the target temperature, and the fan speed of the air conditioner is reduced by a specified number of revolutions for every 1°C decrease in the difference between the indoor temperature and the set temperature until the target revolution threshold is reached, wherein the target temperature is lower than the set temperature. Preferably, the preset temperature threshold may be 26°C, and the temperature difference threshold may be 3-6°C. Preferably, increasing the specified speed may be increasing by 100r / min.

[0047] Preferably, the fan speed decreases by 30 revolutions for every 1°C decrease in temperature difference, and the minimum speed is 700 r / min. This method can maintain the inner ring temperature stable.

[0048] Optionally, when the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, the method further includes: taking the midpoint of the lower air outlet as a dividing line, detecting the position of a human body according to a specified period, and when it is detected that the position of a human body is on one side of the air conditioner, controlling the second air guide plate to deflect to the other side.

[0049] Optionally, adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between a human body and the lower air outlet includes: when the second air guide plate is adjusted to a first specified angle or a second specified angle according to the distance between a human body and the lower air outlet, adjusting the angle of the first air guide plate to a far wind position, the first specified angle corresponding to the closing of the lower air outlet, and the second specified angle corresponding to the opening angle of the lower air outlet as a first opening angle; when the second air guide plate is adjusted to a third specified angle according to the distance between a human body and the lower air outlet, adjusting the angle of the first air guide plate to a near wind position, the third specified angle corresponding to the opening angle of the lower air outlet as a second opening angle, and the second opening angle being greater than the first opening angle.

[0050] Optionally, you can use a specified duration (for example, 20 minutes) as a cycle, sweep up and down for a preset duration (for example, 10 minutes), and sweep within the angle adjustment range of the predetermined near windshield or far windshield. After the sweep cycle, adjust the angle of the air guide plate to increase or decrease by 10° (increase from the predetermined minimum angle to the predetermined maximum angle, and then decrease from the predetermined maximum angle to the predetermined minimum angle), and then enter the next cycle after the preset blowing duration at the fixed adjusted angle. This can prevent the air conditioner from blowing directly in one place for a long time, thereby making the room temperature field more uniform.

[0051] The present embodiment provides a control method for preventing direct blowing of an air conditioner, wherein the air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate. The method detects the distance between a human body and the lower air outlet; according to the distance between the human body and the lower air outlet, the state of the first air guide plate and / or the second air guide plate is adjusted, that is, the air outlet is controlled according to the distance between the human body and the lower air outlet, which can effectively prevent the air conditioner from directly blowing the human body, improves the human comfort, and solves the technical problem of poor control effect of preventing direct blowing of the air conditioner in related technologies.

[0052] Embodiment 2

[0053] Figure 2 is a schematic diagram of another air conditioner direct blowing prevention control method provided by an embodiment of the present invention, such as Figure 2 As shown, the method mainly includes: detecting the distance between the user and the downwind outlet; adjusting the angle and opening and closing of the downwind outlet according to the distance; detecting the indoor temperature T, judging whether (T-T) is greater than a preset value, and executing action 2 when T is less than or equal to 26°C and (T-T) is greater than or equal to T1; executing action 3 when T is less than or equal to 26°C and (T-T) is greater than 0 and less than T1. Action 2 and action 3 will be described below.

[0054] Specifically, the air conditioner anti-direct blowing function in this embodiment requires the following modules: millimeter wave radar, temperature detection module, infrared detection. The air conditioner itself has two air outlets, the upper air outlet is guided by a large air guide plate, and the lower air outlet is guided by a small air guide plate. The millimeter wave radar detects the distance of the human body from the lower air outlet. Among them, Tin represents the ambient temperature in the room; Tset represents the air conditioner set temperature; T1 represents the preset value; T2 represents the frequency reduction temperature.

[0055] Among them, the small air guide plate changes its angle and opens and closes according to the human body position and temperature requirements, and three angles are preset. Angle 1 is a closed angle, which is suitable for the situation where the human body is below the downwind outlet to prevent direct blowing on the human body, and only use the upper air outlet to supply air; Angle 2 is 30°-60°, which is suitable for the situation where the human body is in the middle distance of the downwind outlet. The angle is adjusted according to the distance of the human body, so that the cold air sent out after adjusting the air guide plate cannot blow on the human body; Angle 3 is 60°, which is suitable for the situation where the human body is far away from the downwind outlet. At this time, it is opened to the maximum angle and the cold air cannot blow on the human body.

[0056] The large air deflector can change its angle according to the position of the human body and temperature requirements, with two preset angles. When the small air deflector is at Angle 1 or Angle 2, adjusting the angle of the large air deflector changes it to the far wind挡; when the small air deflector is at Angle 3, adjusting the angle of the large air deflector changes it to the near wind挡. The angle adjustment range of the large air deflector is 0 - 100°, with the range of 60° - 80° set as the adjustment range for the near wind挡, and the range of 80° - 100° set as the adjustment range for the far wind挡. Taking 20 minutes as a cycle, it sweeps up and down for 10 minutes, sweeping within the established angle adjustment range of the near or far wind挡; after the sweeping cycle ends, the angle of the air deflector is adjusted to increase or decrease by 10° (from the established minimum angle to the established maximum angle, and then from the established maximum angle to the established minimum angle), and it blows air at the fixed adjusted angle for 10 minutes before entering the next cycle. This prevents the air conditioner from blowing directly at one place for a long time, making the room temperature field more uniform. The specific movement patterns of the large and small air deflectors can be referred to Figures 3A-3D as shown.

[0057] Among them, when it is detected that the human body is 3 - 5m away from the air conditioner, at this time the human body is far from the lower air outlet of the air conditioner, the lower air outlet can be opened to the maximum angle, and the following judgments are made:

[0058] 1. When T inside > 26℃, it is considered that the room needs cooling, increase the internal rotation by 100 (regardless of the wind挡), and full frequency, quickly meeting the cooling capacity requirements. The large air deflector is adjusted to Angle 1 to prevent, when the temperature inside T meets below 26℃, then judging to execute Action 2 or 3;

[0059] 2. When T inside ≤ 26℃ and T inside - T set ≥ T1, then it can be determined that the user still has a cooling demand, maintaining the frequency and internal rotation of Action 1 and continuing to cool;

[0060] 3. When T inside ≤ 26℃ and 0 ≤ T inside - T set < T1, then it is determined that the room cooling capacity has basically met the user's needs, the frequency runs according to T2 = set temperature - 4, and the internal rotation decreases by 30 revolutions per 1℃ decrease in the temperature difference (regardless of the wind挡), with the minimum internal rotation being 700, maintaining the stability of the inner ring temperature.

[0061] Among them, when it is detected that the human body is 1 - 3m away from the air conditioner, at this time the human body is relatively close to the lower air outlet of the air conditioner, but there is still a certain distance. The opening angle of the lower air outlet of the air conditioner can change according to the distance, and for every 1m closer to the air conditioner, the angle of the lower air outlet of the air conditioner decreases by 15° (the maximum angle is 60°, and the minimum angle is 30°) to prevent cold air from blowing directly at the human body, and the following judgments are made:

[0062] 1. When T inside > 26℃, it is considered that the room needs cooling, increase the internal rotation by 100 (regardless of the wind挡), and full frequency, quickly meeting the cooling capacity requirements. When the temperature inside T meets below 26℃, then judge to execute Action 2 or 3;

[0063] 2. When the indoor temperature (T_inner) ≤ 26°C and T_inner - T_set ≥ T1, it can be determined that the user still has a cooling demand. Maintain the frequency and internal rotation of Action 1. Using the midpoint of the lower air outlet of the air conditioner as the demarcation line, detect the human heat source every 1 minute. If the infrared detects the human heat source on one side of the air conditioner, then control the small air deflector to deflect to the other side, so that the cold air is sent out avoiding the human body, and continue to cool down;

[0064] 3. When the indoor temperature (T_inner) ≤ 26°C and 0 ≤ T_inner - T_set < T1, it is considered that the cooling capacity of the room has basically met the user's needs at this time. The frequency operates according to T2 = set temperature - 4, and the internal rotation decreases by 30 revolutions per 1°C decrease in temperature difference (regardless of the wind speed setting), with the minimum internal rotation being 700, to maintain the stability of the inner loop temperature.

[0065] Among them, when it is detected that the human body is within 0 - 1m of the air conditioner, at this time the human body is near the lower air outlet of the air conditioner, the lower air outlet of the air conditioner closes, and the air blows out from the upper air outlet, and the cold air naturally sinks to cool down. The following judgments will be made:

[0066] 1. When the indoor temperature (T_inner) > 26°C, it is regarded that the room needs cooling. Increase the internal rotation by 100 (regardless of the wind speed setting), and full load the frequency to quickly meet the cooling capacity requirement. When the indoor temperature (T_inner) meets below 26°C, then judge to execute Action 2 or 3;

[0067] 2. When the indoor temperature (T_inner) ≤ 26°C and T_inner - T_set ≥ T1, it can be determined that the user still has a cooling demand. Maintain the frequency and internal rotation of Action 1, and continue to cool down;

[0068] 3. When the indoor temperature (T_inner) ≤ 26°C and 0 ≤ T_inner - T_set < T1, it is considered that the cooling capacity of the room has basically met the user's needs at this time. The frequency operates according to T2 = set temperature - 4, and the internal rotation decreases by 30 revolutions per 1°C decrease in temperature difference (regardless of the wind speed setting), with the minimum internal rotation being 700, to maintain the stability of the inner loop temperature.

[0069] In the above embodiments, by setting an air conditioner with upper and lower air outlets, the upper air outlet is guided by a large moving air deflector, and the lower air outlet is guided by a small air deflector. By detecting the position of the human body relative to the lower air outlet, the indoor environmental temperature, and the set temperature, logical judgments are made to correct and adjust the angle opening and closing of the air deflector of the air conditioner, the rotational speed of the internal fan, and the compressor frequency, preventing the air conditioner from directly blowing on the human body and improving human comfort.

[0070] Embodiment 3

[0071] Figure 4 It is a schematic diagram of a control device for preventing direct blowing of an air conditioner provided by an embodiment of the present invention. As Figure 4 shown, the air conditioner is provided with an upper air outlet and a lower air outlet. The upper air outlet is provided with a first air deflector, and the lower air outlet is provided with a second air deflector. The device includes:

[0072] A distance detection unit 40, used to detect the distance between a human body and the lower air outlet;

[0073] The state adjustment unit 41 is used to adjust the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet.

[0074] Optionally, the state adjustment unit is also used to: when the distance is less than a first distance threshold, control the second air guide plate to be in a first state so that the lower air outlet is closed; when the distance is greater than or equal to the first distance threshold and less than a second distance threshold, control the state of the second air guide plate to change according to the distance so that the opening angle of the lower air outlet decreases as the distance decreases; when the distance is greater than or equal to the second distance, control the state of the second air guide plate to be in a second state so that the opening angle of the lower air outlet reaches a maximum.

[0075] Optionally, the state adjustment unit is also used to: obtain the indoor temperature when the distance is greater than or equal to the second distance; and control the first air guide plate to the third state when the indoor temperature is greater than a preset temperature threshold so that the opening angle of the upper air outlet is the first angle.

[0076] Optionally, the device also includes: an indoor temperature and set temperature acquisition unit, used to acquire the indoor temperature and the set temperature; and a parameter adjustment unit, used to adjust the fan speed and / or compressor frequency of the air conditioner according to the indoor temperature and the set temperature.

[0077] Optionally, the parameter adjustment unit is further used to: when the indoor temperature is greater than a preset temperature threshold and / or the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, control the fan speed to increase a specified speed, and control the compressor frequency to reach a first frequency threshold; when the indoor temperature is less than or equal to the preset temperature threshold, and the difference between the indoor temperature and the set temperature does not reach the temperature difference threshold, the frequency of the compressor is controlled based on the target temperature, and the fan speed of the air conditioner is reduced by a specified number of revolutions for every 1°C decrease in the difference between the indoor temperature and the set temperature until the target revolution threshold is reached, wherein the target temperature is lower than the set temperature;

[0078] Optionally, when the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, the device further includes: a deflection control unit, for detecting the position of a human body according to a specified period using the midpoint of the lower air outlet as a dividing line, and controlling the second air guide plate to deflect to the other side when it is detected that the human body is on one side of the air conditioner.

[0079] Optionally, the state adjustment unit is also used for: when the second air guide plate is adjusted to a first specified angle or a second specified angle according to the distance between a human body and the lower air outlet, adjusting the angle of the first air guide plate to the far wind position, the first specified angle corresponds to the closing of the lower air outlet, and the second specified angle corresponds to the opening angle of the lower air outlet as a first opening angle; when the second air guide plate is adjusted to a third specified angle according to the distance between a human body and the lower air outlet, adjusting the angle of the first air guide plate to the near wind position, the third specified angle corresponds to the opening angle of the lower air outlet as a second opening angle, and the second opening angle is greater than the first opening angle.

[0080] The present embodiment provides a control device for preventing direct blowing of an air conditioner, wherein the air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate. The device detects the distance between a human body and the lower air outlet; according to the distance between the human body and the lower air outlet, the state of the first air guide plate and / or the second air guide plate is adjusted, that is, the air outlet is controlled according to the distance between the human body and the lower air outlet, which can effectively prevent the air conditioner from directly blowing the human body, improves the human comfort, and solves the technical problem of poor control effect of preventing direct blowing of the air conditioner in related technologies.

[0081] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0082] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0083] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0084] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling one or more computer devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.

[0085] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0086] In the several embodiments provided in the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0087] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., may be located in one place.

[0088] The purpose of the solution of this embodiment can be achieved by selecting some or all of the units according to actual needs.

[0089] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit.

[0090] In the embodiment, each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or software.

[0091] It is implemented in the form of a functional unit.

[0092] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A control method for preventing direct blowing of an air conditioner, characterized in that: The air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate, and the method includes: Detecting the distance between a human body and the lower air outlet; adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet; When the distance is greater than or equal to a second distance threshold, controlling the state of the second air guide plate to be a second state so that the opening angle of the lower air outlet reaches a maximum; and obtaining the indoor temperature; When the indoor temperature is greater than a preset temperature threshold, controlling the first air guide plate to be in a third state so that the opening angle of the upper air outlet is a first angle; Among them, the first wind guide plate is in the third state, that is, the near windshield, and the first angle ranges from 60° to 80°.

2. The method according to claim 1, characterized in that: The step of adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet comprises: When the distance is less than a first distance threshold, controlling the second air guide plate to be in a first state so that the lower air outlet is closed; When the distance is greater than or equal to the first distance threshold and less than the second distance threshold, the state of the second air guide plate is controlled to change according to the distance so that the opening angle of the lower air outlet decreases as the distance decreases.

3. The method according to claim 2, characterized in that The method further comprises: Get indoor temperature and set temperature; The fan speed and / or compressor frequency of the air conditioner are adjusted according to the indoor temperature and the set temperature.

4. The method according to claim 3, characterized in that: The step of adjusting the fan speed and / or compressor frequency of the air conditioner according to the indoor temperature and the set temperature includes: When the indoor temperature is greater than a preset temperature threshold and / or the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, controlling the fan speed to increase a specified speed, and controlling the compressor frequency to reach a first frequency threshold; When the indoor temperature is less than or equal to the preset temperature threshold and the difference between the indoor temperature and the set temperature does not reach the temperature difference threshold, the frequency of the compressor is controlled based on the target temperature, and the fan speed of the air conditioner is reduced by a specified number of revolutions for every 1°C decrease in the difference between the indoor temperature and the set temperature until the target speed threshold is reached, wherein the target temperature is lower than the set temperature.

5. The method according to claim 3, characterized in that: When the difference between the indoor temperature and the set temperature reaches a temperature difference threshold, the method further includes: The midpoint of the lower air outlet is used as a dividing line, and the position of a human body is detected according to a specified period. When the position of the human body is detected to be on one side of the air conditioner, the second air guide plate is controlled to deflect to the other side.

6. The method according to claim 1, characterized in that The step of adjusting the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet comprises: When the second air guide plate is adjusted to the first designated angle or the second designated angle according to the distance between the human body and the lower air outlet, the angle of the first air guide plate is adjusted to the far wind gear, the first designated angle corresponds to the closing of the lower air outlet, and the second designated angle corresponds to the opening angle of the lower air outlet as the first opening angle; When the second air guide plate is adjusted to a third specified angle according to the distance between the human body and the lower air outlet, the angle of the first air guide plate is adjusted to the near wind gear, and the opening angle of the lower air outlet corresponding to the third specified angle is a second opening angle, and the second opening angle is greater than the first opening angle.

7. A control device for preventing direct blowing of an air conditioner, characterized in that: The air conditioner is provided with an upper air outlet and a lower air outlet, the upper air outlet is provided with a first air guide plate, and the lower air outlet is provided with a second air guide plate, and the device comprises: A distance detection unit, used to detect the distance between a human body and the lower air outlet; A state adjustment unit is used to adjust the state of the first air guide plate and / or the second air guide plate according to the distance between the human body and the lower air outlet.

8. The device according to claim 7, characterized in that The state adjustment unit is also used for: When the distance is less than a first distance threshold, controlling the second air guide plate to be in a first state so that the lower air outlet is closed; When the distance is greater than or equal to the first distance threshold and less than a second distance threshold, controlling the state of the second air guide plate to change according to the distance so that the opening angle of the lower air outlet decreases as the distance decreases; When the distance is greater than or equal to the second distance, the state of the second air guide plate is controlled to be the second state so that the opening angle of the lower air outlet reaches the maximum.

9. The device according to claim 8, characterized in that The state adjustment unit is also used for: When the distance is greater than or equal to the second distance, obtaining the indoor temperature; When the indoor temperature is greater than a preset temperature threshold, controlling the first air guide plate to be in a third state so that the opening angle of the upper air outlet is a first angle; Among them, the first wind guide plate is in the third state, that is, the near windshield, and the first angle ranges from 60° to 80°.

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