Air conditioner control method and device, air conditioner, storage medium and program product

Abstract

The invention discloses an air conditioner control method and device, an air conditioner, a storage medium and a computer program product, and the method comprises the steps that after the air conditioner runs and starts an energy-saving function, if it is detected that no person is in a room, the indoor set temperature is controlled according to the running mode of the air conditioner; and meanwhile, the rotating speed of a fresh air fan is controlled according to the operation mode of the air conditioner and the indoor set temperature under the condition that the fresh air function of the air conditioner is started. According to the scheme, the indoor set temperature of the air conditioner and the rotating speed of the fresh air fan are adjusted after nobody is in the room, the overall energy consumption of the air conditioner is reduced, and the system energy efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and specifically relates to a control method, device, air conditioner, storage medium and computer program product for an air conditioner, and in particular to a control method, device, fresh air air conditioner, storage medium and computer program product for an air conditioner with a fresh air function. Background Art

[0002] With the improvement of people's living standards, air conditioners have become one of the indispensable household appliances in families. Although air conditioners can meet basic temperature regulation needs, if the air conditioner is still in operation when no one is indoors, it will lead to energy waste. The energy consumption of air conditioners is high and the energy-saving effect is poor.

[0003] In addition, the doors and windows are usually closed when the air conditioner is adjusting the room temperature. Long-term use of the air conditioner will cause the air quality in the room to deteriorate. Therefore, in order to improve the air quality in the room, a fresh air system is introduced into the air conditioner. However, although the introduction of the fresh air system can improve the indoor air quality, it requires the addition of a new fresh air drive load. When the fresh air function is turned on, the internal fan needs to be started, which increases the energy consumption of the air conditioner, reduces the energy efficiency ratio, and has a poor energy-saving effect.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The object of the present invention is to provide an air conditioner control method, device, air conditioner, storage medium and computer program product to solve the problem that the air conditioner with a fresh air function in the related scheme has high energy consumption, resulting in energy waste and poor energy-saving effect of the air conditioner, so as to achieve the effect of reducing the air conditioner cooling energy consumption and improving the system energy efficiency by adjusting the indoor set temperature and the speed of the fresh air fan of the air conditioner when no one is indoors.

[0006] The present invention provides a control method for an air conditioner, wherein the air conditioner comprises a fresh air fan and a detection module; the detection module is used to detect whether there is someone in the room; the air conditioner has an energy-saving function and a fresh air function; the method comprises: after the air conditioner is running and the energy-saving function is turned on, obtaining the operation mode of the air conditioner, the indoor set temperature, and the detection result of the detection module; after the detection result of the detection module is that there is no one in the room, controlling the indoor set temperature according to the operation mode of the air conditioner; and at the same time, when the fresh air function of the air conditioner is turned on, controlling the rotation speed of the fresh air fan according to the operation mode of the air conditioner and the indoor set temperature.

[0007] In some embodiments, the indoor set temperature is controlled according to the operation mode of the air conditioner, including: when the operation mode of the air conditioner is a cooling mode, judging the size of the indoor set temperature; if the indoor set temperature is less than or equal to a first preset temperature, increasing the indoor set temperature by a first preset adjustment amount; if the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, increasing the indoor set temperature to the second preset temperature; if the indoor set temperature is greater than or equal to the second preset temperature, maintaining the indoor set temperature unchanged; or, when the operation mode of the air conditioner is a heating mode, judging the size of the indoor set temperature; if the indoor set temperature is greater than or equal to a third preset temperature, reducing the indoor set temperature by a second preset adjustment amount; if the indoor set temperature is less than the third preset temperature and greater than a fourth preset temperature, reducing the indoor set temperature to a fourth preset temperature; if the indoor set temperature is less than or equal to the fourth preset temperature, maintaining the indoor set temperature unchanged.

[0008] In some embodiments, it also includes: within a preset time after the indoor set temperature is increased by a first preset adjustment amount, if the detection result of the detection module continues to be that there is no one in the room, and the indoor set temperature is lower than a second preset temperature, then the indoor set temperature is increased to the second preset temperature; or, within a preset time after the indoor set temperature is lowered by a second preset adjustment amount, if the detection result of the detection module continues to be that there is no one in the room, and the indoor set temperature is higher than a fourth preset temperature, then the indoor set temperature is lowered to the fourth preset temperature.

[0009] In some embodiments, the rotation speed of the fresh air fan is controlled according to the operation mode of the air conditioner and the indoor set temperature, including: when the operation mode of the air conditioner is the cooling mode, judging the size of the indoor set temperature; if the indoor set temperature is less than or equal to a first preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset speed, reducing the rotation speed of the fresh air fan at a first preset rate until the rotation speed of the fresh air fan is the first preset speed; if the rotation speed of the fresh air fan is less than or equal to the first preset speed, reducing the rotation speed of the fresh air fan at a first preset rate until the rotation speed of the fresh air fan is the second preset speed; if the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, at this time If the rotation speed of the fresh air fan is greater than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is less than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the second preset rotation speed; if the indoor set temperature is greater than or equal to the second preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is less than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is The speed is a second preset speed; or, when the operating mode of the air conditioner is a heating mode, the size of the indoor set temperature is judged; if the indoor set temperature is greater than or equal to the third preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced at a first preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced at the first preset rate until the speed of the fresh air fan is the second preset speed; if the indoor set temperature is less than the third preset temperature and greater than the fourth preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced at the second preset rate The speed of the fresh air fan is increased until the speed of the fresh air fan is a first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced by a second preset rate until the speed of the fresh air fan is the second preset speed; if the indoor set temperature is less than or equal to a fourth preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced by a third preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced by a third preset rate until the speed of the fresh air fan is the second preset speed; the first preset rate < the second preset rate < the third preset rate.

[0010] In some embodiments, it also includes: when the running time of the fresh air function reaches a preset time, and the detection result of the detection module continues to be that there is no one in the room during the preset time, the fresh air fan is controlled to stop running and the fresh air function is turned off.

[0011] Matching the above method, the present invention provides a control device for an air conditioner on the other hand, the air conditioner comprising a fresh air fan and a detection module; the detection module is used to detect whether there is someone in the room; the air conditioner has an energy-saving function and a fresh air function; the device comprises: an acquisition unit, configured to obtain the operating mode of the air conditioner, the indoor set temperature, and the detection result of the detection module after the air conditioner is running and the energy-saving function is turned on; a control unit, configured to control the indoor set temperature according to the operating mode of the air conditioner after the detection result of the detection module is that there is no one in the room; and at the same time, when the fresh air function of the air conditioner is turned on, the speed of the fresh air fan is controlled according to the operating mode of the air conditioner and the indoor set temperature.

[0012] In some embodiments, the control unit controls the indoor set temperature according to the operation mode of the air conditioner, including: when the operation mode of the air conditioner is the cooling mode, judging the size of the indoor set temperature; if the indoor set temperature is less than or equal to the first preset temperature, increasing the indoor set temperature by the first preset adjustment amount; if the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, increasing the indoor set temperature to the second preset temperature; if the indoor set temperature is greater than or equal to the second preset temperature, keeping the indoor set temperature unchanged; or, when the operation mode of the air conditioner is the heating mode, judging the size of the indoor set temperature; if the indoor set temperature is greater than or equal to the third preset temperature, reducing the indoor set temperature by the second preset adjustment amount; if the indoor set temperature is less than the third preset temperature and greater than the fourth preset temperature, reducing the indoor set temperature to the fourth preset temperature; if the indoor set temperature is less than or equal to the fourth preset temperature, keeping the indoor set temperature unchanged.

[0013] In some embodiments, the control unit is further configured to, within a preset time after the indoor set temperature is increased by the first preset adjustment amount, if the detection result of the detection module continues to be that there is no one in the room, and the indoor set temperature is lower than the second preset temperature, then increase the indoor set temperature to the second preset temperature; or, within a preset time after the indoor set temperature is lowered by the second preset adjustment amount, if the detection result of the detection module continues to be that there is no one in the room, and the indoor set temperature is higher than a fourth preset temperature, then lower the indoor set temperature to the fourth preset temperature.

[0014] In some embodiments, the control unit controls the speed of the fresh air fan according to the operating mode of the air conditioner and the indoor set temperature, including: when the operating mode of the air conditioner is the cooling mode, judging the size of the indoor set temperature; if the indoor set temperature is less than or equal to the first preset temperature, at this time, if the speed of the fresh air fan is greater than the first preset speed, then reducing the speed of the fresh air fan at a first preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, then reducing the speed of the fresh air fan at the first preset rate until the speed of the fresh air fan is the second preset speed; if the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is less than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the second preset rotation speed; if the indoor set temperature is greater than or equal to the second preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is less than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is The speed of the fresh air fan is a second preset speed; or, when the operating mode of the air conditioner is a heating mode, the size of the indoor set temperature is judged; if the indoor set temperature is greater than or equal to the third preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced at a first preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced at the first preset rate until the speed of the fresh air fan is the second preset speed; if the indoor set temperature is less than the third preset temperature and greater than the fourth preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced at the second preset rate The speed of the fresh air fan is increased until the speed of the fresh air fan is a first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced by a second preset rate until the speed of the fresh air fan is the second preset speed; if the indoor set temperature is less than or equal to a fourth preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced by a third preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced by a third preset rate until the speed of the fresh air fan is the second preset speed; the first preset rate < the second preset rate < the third preset rate.

[0015] In some embodiments, the control unit is further configured to control the fresh air fan to stop running and turn off the fresh air function when the operating time of the fresh air function reaches a preset time and the detection result of the detection module continues to show that there is no one in the room during the preset time.

[0016] Matching the above device, the present invention provides an air conditioner on another aspect, including: the control device of the air conditioner mentioned above.

[0017] In accordance with the above method, the present invention provides a storage medium on another aspect, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned air conditioning control method.

[0018] In accordance with the above method, the present invention provides a computer program product on another aspect, wherein the computer program product includes a computer program, and when the computer program product is processed and executed, the steps of the above air conditioner control method are implemented.

[0019] In the scheme of the present invention, the air conditioner includes a detection module for detecting whether there is someone in the room; after the air conditioner is running and the energy-saving function is turned on, if it is detected that there is no one in the room, the indoor set temperature is controlled according to the operation mode of the air conditioner; at the same time, when the air conditioner has the fresh air function turned on, the speed of the fresh air fan is controlled according to the operation mode of the air conditioner and the indoor set temperature. Thus, by adjusting the indoor set temperature and the speed of the fresh air fan of the air conditioner after no one is in the room, the energy consumption of the air conditioner is reduced and the energy efficiency of the system is improved.

[0020] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention.

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for controlling an air conditioner of the present invention;

[0023] Figure 2 A schematic structural diagram of an embodiment of a control device for an air conditioner of the present invention;

[0024] Figure 3 A structural diagram of a controller system for an air conditioner of the present invention;

[0025] Figure 4 A schematic diagram of a process for adjusting the indoor set temperature of an air conditioner in an energy-saving function;

[0026] Figure 5 The figure is a flow chart for adjusting the rotation speed of the fresh air fan under the energy-saving function.

[0027] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0028] 102 - acquisition unit; 104 - control unit. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] According to an embodiment of the present invention, a control method for an air conditioner is provided, wherein the air conditioner comprises a fresh air blower and a detection module; the detection module is used to detect whether there is someone in the room; the air conditioner has an energy-saving function and a fresh air function. The energy-saving function is used to reduce the energy consumption of the air conditioner when the air conditioner is running, thereby improving the energy-saving effect of the air conditioner. The fresh air function is used to introduce air from the outdoor side into the room, thereby improving the indoor air quality. The fresh air blower is used to adjust the flow rate of the fresh air.

[0031] The detection module can detect the activities of people in the room and determine whether there are people in the room. The detection module can be a millimeter wave radar module, and its operating frequency is usually in the range of 24 to 300 GHz. Since the wavelength of millimeter waves is between centimeter waves and light waves, millimeter waves have the advantages of both microwave guidance and photoelectric guidance. Its anti-interference ability is also better than other sensors, and its detection accuracy is high.

[0032] Air conditioning controller system such as Figure 3 As shown, after the energy-saving function is turned on, the detection module detects the activities of people in the room in real time and feeds the data back to the controller system. The controller system controls the fresh air system and the air-conditioning system according to the data.

[0033] In the fresh air system, the component that consumes the most power is the fresh air fan, so when the fresh air system is controlled under the energy-saving function, the main thing is to adjust the operating parameters of the fresh air system, including the speed of the fresh air fan. In the air-conditioning system, the operating modes of the air conditioner include cooling mode, heating mode, air supply mode, dehumidification mode, etc. Among them, the air conditioner consumes the most power and the fastest in cooling mode and heating mode, so when the air-conditioning system is controlled under the energy-saving function, the main thing is to adjust the operating parameters in cooling mode and heating mode, including the indoor set temperature.

[0034] like Figure 1The flowchart of an embodiment of the method of the present invention is shown in FIG. The air conditioner control method may include: step S110 and step S120.

[0035] In step S110, after the air conditioner is running and the energy-saving function is turned on, the running mode of the air conditioner, the indoor set temperature, and the detection result of the detection module are obtained.

[0036] During the operation of the air conditioner, the detection module detects in real time whether there is someone in the room. When there is no one in the room, the air conditioner automatically turns on the energy-saving function and starts to control the set temperature in the room. Optionally, the user can also manually turn on the energy-saving function through APP remote operation, remote control operation, etc. At this time, it is assumed that there is someone in the room and the detection module is turned on. After the detection module detects that there is no one in the room for a period of time, the air conditioner starts to control the set temperature in the room.

[0037] The energy-saving function can be turned on based on other modes. Turning on the energy-saving function does not end the current mode of the air conditioner. For example, if the energy-saving function is turned on during the air conditioner's operation in cooling mode, the air conditioner is in cooling mode and the energy-saving function is running at the same time.

[0038] When the energy-saving function is turned on, if the fresh air function is turned on, the fresh air system is energy-saving controlled and the speed of the fresh air fan is adjusted. If the fresh air function is not turned on, the fresh air fan is not controlled.

[0039] If the detection module detects that there is someone in the room, the energy-saving function will not be executed, and the air conditioner will continue to operate normally according to the current control logic.

[0040] At step S120, after the detection result of the detection module is that there is no one indoors, the indoor set temperature is controlled according to the operating mode of the air conditioner; at the same time, when the fresh air function of the air conditioner is turned on, the speed of the fresh air fan is controlled according to the operating mode of the air conditioner and the indoor set temperature.

[0041] By adjusting the indoor set temperature of the air conditioner when no one is indoors, it is easier for the air conditioner to reach the indoor set temperature, thereby reducing the time of high-load operation of the compressor, reducing the working frequency, reducing the energy consumption of the air conditioner, and improving the energy efficiency of the system. In addition, the speed of the fresh air fan is controlled to reduce the power consumption of the fresh air system. The fresh air function is kept turned on while achieving cooling or heating, ensuring the introduction of fresh air to improve indoor air quality and provide users with a comfortable environment.

[0042] In some embodiments, in step S120, the indoor set temperature is controlled according to the operating mode of the air conditioner, including: when the operating mode of the air conditioner is a cooling mode, determining the size of the indoor set temperature; if the indoor set temperature is less than or equal to a first preset temperature, increasing the indoor set temperature by a first preset adjustment amount; if the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, increasing the indoor set temperature to the second preset temperature; if the indoor set temperature is greater than or equal to the second preset temperature, maintaining the indoor set temperature unchanged.

[0043] The second preset temperature is the most energy-saving setting temperature for the air conditioner when cooling, which can be set to 27°C. The air conditioner has the best energy-saving effect when the indoor setting temperature is 27°C or higher. Therefore, after starting the energy-saving function, it is necessary to increase the indoor setting temperature to 27°C to reduce the energy consumption of the air conditioner. The first preset temperature is used to distinguish different ways of increasing the indoor setting temperature, and can be set to 24°C. Specifically, when the indoor setting temperature is ≤24°C, the indoor setting temperature is increased by the first preset adjustment amount, and the first preset adjustment amount can be set to 2°C. When 24°C<indoor setting temperature<27°C, the indoor setting temperature is increased to 27°C. When the indoor setting temperature is ≥27°C, the indoor setting temperature is kept unchanged.

[0044] In some embodiments, it also includes: within a preset time after the indoor set temperature is increased by a first preset adjustment amount, if the detection result of the detection module continues to be that there is no one indoors, and the indoor set temperature is lower than a second preset temperature, the indoor set temperature is increased to the second preset temperature.

[0045] The preset time can be set to 30 minutes. When the air conditioner is cooling, if the indoor set temperature is ≤24℃, first increase the indoor set temperature by +2℃, and then if it is detected that there is still no one in the room for 30 minutes, and the indoor set temperature is <27℃ at this time, then increase the indoor set temperature to 27℃. For example, if the initial indoor set temperature is 23℃, first set 23℃+2℃=25℃ as the current indoor set temperature, and then if there is no one in the room for 30 minutes, then set 27℃ as the current indoor set temperature.

[0046] In cooling mode, the indoor set temperature is increased by utilizing the first preset temperature difference, and the preset time is set for segmented step-by-step temperature increase, thereby avoiding the indoor temperature rising too quickly under the energy-saving function, causing the user to feel uncomfortable with the temperature when returning to the room, and improving the comfort of the indoor environment under the energy-saving function.

[0047] In some embodiments, in step S120, controlling the indoor set temperature according to the operating mode of the air conditioner also includes: when the operating mode of the air conditioner is a heating mode, judging the size of the indoor set temperature; if the indoor set temperature is greater than or equal to a third preset temperature, reducing the indoor set temperature by a second preset adjustment amount; if the indoor set temperature is less than the third preset temperature and greater than a fourth preset temperature, reducing the indoor set temperature to a fourth preset temperature; if the indoor set temperature is less than or equal to the fourth preset temperature, maintaining the indoor set temperature unchanged.

[0048] The fourth preset temperature is the most energy-saving setting temperature for the air conditioner when heating, which can be set to 22°C. The energy-saving effect of the air conditioner is best when the indoor set temperature is 22°C or lower. Therefore, after starting the energy-saving function, it is necessary to lower the indoor set temperature to 22°C to reduce the energy consumption of the air conditioner. The third preset temperature is used to distinguish different ways of raising the indoor set temperature, and can be set to 26°C. Specifically, when the indoor set temperature is ≥26°C, the indoor set temperature is lowered by the second preset adjustment amount, and the second preset adjustment amount can be set to 4°C. When 26°C>indoor set temperature>22°C, the indoor set temperature is lowered to 22°C. When the indoor set temperature is ≤22°C, the indoor set temperature is kept unchanged.

[0049] In some embodiments, it also includes: within a preset time after the indoor set temperature is lowered by the second preset adjustment amount, if the detection result of the detection module continues to be that there is no one indoors, and the indoor set temperature is greater than a fourth preset temperature, the indoor set temperature is lowered to the fourth preset temperature.

[0050] When the air conditioner is heating, if the indoor set temperature is ≥ 26°C, the indoor set temperature is first reduced by -4°C. If it is detected that there is still no one in the room for 30 minutes, and the indoor set temperature is > 22°C at this time, the indoor set temperature is reduced to 22°C. For example, if the initial indoor set temperature is 28°C, 28°C-4°C=24°C is first used as the current indoor set temperature. If there is no one in the room for 30 minutes, 22°C is used as the current indoor set temperature.

[0051] In the heating mode, the indoor set temperature is lowered by using the third preset temperature difference, and the preset time is set for segmented step cooling, so as to avoid excessive reduction of the indoor temperature under the energy-saving function, causing the user to feel uncomfortable with the temperature when returning to the room, and improve the comfort of the indoor environment under the energy-saving function.

[0052] Figure 4 The flowchart for adjusting the indoor set temperature of the air conditioner under the energy saving function is as follows: Figure 4 As shown, the method includes:

[0053] Step 1: After the air conditioner turns on the energy-saving function, read the operating status of the air conditioner, including whether the air conditioner is running in cooling or heating mode and the set temperature of the air conditioner. When the air conditioner is running in cooling mode, execute step 2; when the air conditioner is running in heating mode, execute step 3.

[0054] Step 2: If it is detected that there is no one in the room, determine the set temperature. If the set temperature is ≤ 24°C, the set temperature + 2°C is used as the current set temperature. If no one is detected in the room for the next 30 minutes, 27°C is used as the current set temperature; if 24°C < set temperature < 27°C, 27°C is used as the current set temperature; if the set temperature is ≥ 27°C, the set temperature remains unchanged.

[0055] Step 3: If it is detected that there is no one in the room, determine the set temperature. If the set temperature is ≥ 26°C, the set temperature + 4°C is used as the current set temperature. If it is detected that there is no one in the room for 30 minutes, 22°C is used as the current set temperature; if 22°C < set temperature < 26°C, 22°C is used as the current set temperature; if the set temperature is ≤ 22°C, the set temperature remains unchanged.

[0056] In some embodiments, in step S120, the speed of the fresh air fan is controlled according to the operating mode of the air conditioner and the indoor set temperature, including: when the operating mode of the air conditioner is the cooling mode, judging the size of the indoor set temperature; if the indoor set temperature is less than or equal to the first preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, then reducing the speed of the fresh air fan at a first preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, then reducing the speed of the fresh air fan at a first preset rate until the speed of the fresh air fan is the second preset speed; if the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, at this time if If the rotation speed of the fresh air fan is greater than the first preset speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the first preset speed; if the rotation speed of the fresh air fan is less than or equal to the first preset speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the second preset speed; if the indoor set temperature is greater than or equal to the second preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is the first preset speed; if the rotation speed of the fresh air fan is less than or equal to the first preset speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is the second preset speed.

[0057] In some embodiments, in step S120, controlling the rotation speed of the fresh air fan according to the operating mode of the air conditioner and the indoor set temperature also includes: when the operating mode of the air conditioner is the heating mode, judging the size of the indoor set temperature; if the indoor set temperature is greater than or equal to the third preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset speed, reducing the rotation speed of the fresh air fan at a first preset rate until the rotation speed of the fresh air fan is the first preset speed; if the rotation speed of the fresh air fan is less than or equal to the first preset speed, reducing the rotation speed of the fresh air fan at the first preset rate until the rotation speed of the fresh air fan is the second preset speed; if the indoor set temperature is less than the third preset temperature and greater than the fourth preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset speed if the indoor set temperature is less than or equal to the fourth preset temperature, and at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced at a third preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced at a third preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced at a third preset rate until the speed of the fresh air fan is the second preset speed; the first preset rate < the second preset rate < the third preset rate.

[0058] When the energy-saving function is turned on, if the air conditioner has already turned on the fresh air function and the fresh air fan is in working condition, the energy-saving effect of the air conditioner can be further improved by appropriately reducing the speed of the fresh air fan.

[0059] The wind speed of the fresh air fan is the same as that of the fan in the air conditioner, including 7 gears: super, high, medium, medium, medium, low, low, and silent. Each gear corresponds to a different speed value. The first preset speed is the speed value corresponding to the medium speed, and the second preset speed is the speed value corresponding to the silent speed.

[0060] Optionally, when controlling the rotation speed of the fresh air fan, the rotation speed of the interior fan is synchronously controlled in the same control manner.

[0061] When controlling the speed of the fresh air fan, the judgment conditions in cooling mode and heating mode are different. The specific control process is:

[0062] If the indoor set temperature is ≤24℃ during cooling or ≥26℃ during heating, if the speed of the fresh air fan is greater than the first preset speed, that is, the wind speed of the fresh air fan is above the medium wind speed, the speed of the fresh air fan is reduced according to the first preset rate until the current speed is the speed value corresponding to the medium wind speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced according to the first preset rate until the current speed is the speed value corresponding to the silent speed.

[0063] If the indoor set temperature is 24℃ < 27℃ during cooling or 22℃ < 26℃ during heating, if the speed of the fresh air fan is greater than the first preset speed, that is, the wind speed of the fresh air fan is above the medium wind speed, the speed of the fresh air fan is reduced according to the second preset rate until the current speed is the speed value corresponding to the medium wind speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced according to the second preset rate until the current speed is the speed value corresponding to the silent speed.

[0064] If the indoor set temperature is ≥27℃ during cooling or ≤22℃ during heating, at this time, if the speed of the fresh air fan is greater than the first preset speed, that is, the wind speed of the fresh air fan is above the medium wind speed, the speed of the fresh air fan is reduced according to the third preset rate until the current speed is the speed value corresponding to the medium wind speed; at this time, if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced according to the third preset rate until the current speed is the speed value corresponding to the silent speed.

[0065] The first preset rate can be set to 5r / min, the second preset rate can be set to 10r / min, and the third preset rate can be set to 20r / min. That is, the higher the indoor set temperature during cooling, the greater the rate of reduction of the fresh air fan speed, and the lower the indoor set temperature during heating, the greater the rate of reduction of the fresh air fan speed. By setting different reduction rates of the fresh air fan speed according to different indoor set temperatures, not only the power consumption of the fresh air fan is reduced, but also the degree of neutralization of indoor cold or heat due to the introduction of fresh air is reduced, reducing the extra energy consumed by the air conditioning system to maintain the set temperature, reducing energy consumption, and avoiding large fluctuations in indoor temperature to ensure indoor comfort.

[0066] In some embodiments, it also includes: when the running time of the fresh air function reaches a preset time, and the detection result of the detection module continues to be that there is no one in the room during the preset time, the fresh air fan is controlled to stop running and the fresh air function is turned off.

[0067] The preset duration can be set to 2 hours. In the energy-saving function, if the continuous operation time of the fresh air function reaches 2 hours and there is no one in the room during the 2 hours, the fresh air function will be turned off and the fresh air fan will stop running to avoid energy waste and improve the energy efficiency of the air conditioner.

[0068] Optionally, after the fresh air function is turned off under the energy-saving function, if it is detected that someone is in the room, the fresh air function is turned on and the fresh air fan starts running again.

[0069] Figure 5 This is a flow chart of adjusting the speed of the fresh air fan under the energy-saving function. Figure 5 As shown, the method includes:

[0070] Step 11, after the energy-saving function of the air conditioner is turned on, if the fresh air function is turned on, the set temperature and operating mode of the air conditioner are read.

[0071] Step 12, when it is detected that there is no one in the room, determine the set temperature. If the set temperature is ≤24℃ for cooling or ≥26℃ for heating, execute step 13; if 24℃ < set temperature <27℃ for cooling or 26℃ > set temperature >22℃ for heating, execute step 14; if the set temperature is ≥27℃ for cooling or ≤22℃ for heating, execute step 15.

[0072] Step 13, determine the wind speed of the fresh air fan. If the wind speed of the fresh air fan is above the medium wind speed, reduce the speed of the fresh air fan at a rate of 5r / min until it drops to the medium wind speed; if the wind speed of the fresh air fan is at or below the medium wind speed, reduce the speed of the fresh air fan at a rate of 5r / min until it drops to the silent speed. Then execute step 16.

[0073] Step 14, determine the wind speed of the fresh air fan. If the wind speed of the fresh air fan is above the medium wind speed, reduce the speed of the fresh air fan at a rate of 10r / min until it drops to the medium wind speed; if the wind speed of the fresh air fan is at or below the medium wind speed, reduce the speed of the fresh air fan at a rate of 10r / min until it drops to the silent speed. Then execute step 16.

[0074] Step 15, determine the wind speed of the fresh air fan. If the wind speed of the fresh air fan is above the medium wind speed, reduce the speed of the fresh air fan at a rate of 20r / min until it drops to the medium wind speed; if the wind speed of the fresh air fan is at or below the medium wind speed, reduce the speed of the fresh air fan at a rate of 20r / min until it drops to the silent speed. Then execute step 16.

[0075] Step 16: If the fresh air function runs for ≥ 2 hours and there is no one in the room during this process, turn off the fresh air function.

[0076] With the technical solution of this embodiment, the air conditioner includes a detection module for detecting whether there is someone in the room; after the air conditioner is running and the energy-saving function is turned on, if it is detected that there is no one in the room, the indoor set temperature is controlled according to the operation mode of the air conditioner; at the same time, when the air conditioner turns on the fresh air function, the speed of the fresh air fan is controlled according to the operation mode of the air conditioner and the indoor set temperature. Thus, by adjusting the indoor set temperature and the speed of the fresh air fan of the air conditioner when no one is in the room, the energy consumption of the air conditioner is reduced and the energy efficiency of the system is improved.

[0077] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method for an air conditioner is also provided. The air conditioner comprises a fresh air blower and a detection module; the detection module is used to detect whether there is someone in the room; the air conditioner has an energy-saving function and a fresh air function. The energy-saving function is used to reduce the energy consumption of the air conditioner when the air conditioner is running, thereby improving the energy-saving effect of the air conditioner. The fresh air function is used to introduce outdoor air into the room, thereby improving the indoor air quality. The fresh air blower is used to adjust the flow rate of the fresh air.

[0078] The detection module can detect the activities of people in the room and determine whether there are people in the room. The detection module can be a millimeter wave radar module, and its operating frequency is usually in the range of 24 to 300 GHz. Since the wavelength of millimeter waves is between centimeter waves and light waves, millimeter waves have the advantages of both microwave guidance and photoelectric guidance. Its anti-interference ability is also better than other sensors, and its detection accuracy is high.

[0079] Air conditioning controller system such as Figure 3 As shown, after the energy-saving function is turned on, the detection module detects the activities of people in the room in real time and feeds the data back to the controller system. The controller system controls the fresh air system and the air-conditioning system according to the data.

[0080] In the fresh air system, the component that consumes the most power is the fresh air fan, so when the fresh air system is controlled under the energy-saving function, the main thing is to adjust the operating parameters of the fresh air system, including the speed of the fresh air fan. In the air-conditioning system, the operating modes of the air conditioner include cooling mode, heating mode, air supply mode, dehumidification mode, etc. Among them, the air conditioner consumes the most power and the fastest in cooling mode and heating mode, so when the air-conditioning system is controlled under the energy-saving function, the main thing is to adjust the operating parameters in cooling mode and heating mode, including the indoor set temperature.

[0081] See also Figure 2 The schematic diagram of the structure of an embodiment of the device of the present invention is shown. The control device of the air conditioner may include: an acquisition unit 102 and a control unit 104.

[0082] The acquisition unit 102 is configured to acquire the operation mode of the air conditioner, the indoor set temperature, and the detection result of the detection module after the air conditioner is running and the energy-saving function is turned on. The specific functions and processing of the acquisition unit 102 refer to step S110.

[0083] During the operation of the air conditioner, the detection module detects in real time whether there is someone in the room. When there is no one in the room, the air conditioner automatically turns on the energy-saving function and starts to control the set temperature in the room. Optionally, the user can also manually turn on the energy-saving function through APP remote operation, remote control operation, etc. At this time, it is assumed that there is someone in the room and the detection module is turned on. After the detection module detects that there is no one in the room for a period of time, the air conditioner starts to control the set temperature in the room.

[0084] The energy-saving function can be turned on based on other modes. Turning on the energy-saving function does not end the current mode of the air conditioner. For example, if the energy-saving function is turned on during the air conditioner's operation in cooling mode, the air conditioner is in cooling mode and the energy-saving function is running at the same time.

[0085] When the energy-saving function is turned on, if the fresh air function is turned on, the fresh air system is energy-saving controlled and the speed of the fresh air fan is adjusted. If the fresh air function is not turned on, the fresh air fan is not controlled.

[0086] If the detection module detects that there is someone in the room, the energy-saving function will not be executed, and the air conditioner will continue to operate normally according to the current control logic.

[0087] The control unit 104 is configured to control the indoor set temperature according to the operation mode of the air conditioner when the detection result of the detection module is that there is no one in the room; and when the air conditioner turns on the fresh air function, control the speed of the fresh air fan according to the operation mode of the air conditioner and the indoor set temperature. The specific functions and processing of the control unit 104 refer to step S120.

[0088] By adjusting the indoor set temperature of the air conditioner when no one is indoors, it is easier for the air conditioner to reach the indoor set temperature, thereby reducing the time of high-load operation of the compressor, reducing the working frequency, reducing the energy consumption of the air conditioner, and improving the energy efficiency of the system. In addition, the speed of the fresh air fan is controlled to reduce the power consumption of the fresh air system. The fresh air function is kept turned on while achieving cooling or heating, ensuring the introduction of fresh air to improve indoor air quality and provide users with a comfortable environment.

[0089] In some embodiments, the control unit 104 controls the indoor set temperature according to the operating mode of the air conditioner, including: when the operating mode of the air conditioner is a cooling mode, determining the size of the indoor set temperature; if the indoor set temperature is less than or equal to a first preset temperature, increasing the indoor set temperature by a first preset adjustment amount; if the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, increasing the indoor set temperature to the second preset temperature; if the indoor set temperature is greater than or equal to the second preset temperature, maintaining the indoor set temperature unchanged.

[0090] The second preset temperature is the most energy-saving setting temperature for the air conditioner when cooling, which can be set to 27°C. The air conditioner has the best energy-saving effect when the indoor setting temperature is 27°C or higher. Therefore, after starting the energy-saving function, it is necessary to increase the indoor setting temperature to 27°C to reduce the energy consumption of the air conditioner. The first preset temperature is used to distinguish different ways of increasing the indoor setting temperature, and can be set to 24°C. Specifically, when the indoor setting temperature is ≤24°C, the indoor setting temperature is increased by the first preset adjustment amount, and the first preset adjustment amount can be set to 2°C. When 24°C<indoor setting temperature<27°C, the indoor setting temperature is increased to 27°C. When the indoor setting temperature is ≥27°C, the indoor setting temperature is kept unchanged.

[0091] In some embodiments, the control unit 104 is further configured to: within a preset time after the indoor set temperature is increased by a first preset adjustment amount, if the detection result of the detection module continues to be that there is no one indoors, and the indoor set temperature is lower than a second preset temperature, then the indoor set temperature is increased to the second preset temperature.

[0092] The preset time can be set to 30 minutes. When the air conditioner is cooling, if the indoor set temperature is ≤24℃, first increase the indoor set temperature by +2℃, and then if it is detected that there is still no one in the room for 30 minutes, and the indoor set temperature is <27℃ at this time, then increase the indoor set temperature to 27℃. For example, if the initial indoor set temperature is 23℃, first set 23℃+2℃=25℃ as the current indoor set temperature, and then if there is no one in the room for 30 minutes, then set 27℃ as the current indoor set temperature.

[0093] In cooling mode, the indoor set temperature is increased by utilizing the first preset temperature difference, and the preset time is set for segmented step-by-step temperature increase, thereby avoiding the indoor temperature rising too quickly under the energy-saving function, causing the user to feel uncomfortable with the temperature when returning to the room, and improving the comfort of the indoor environment under the energy-saving function.

[0094] In some embodiments, the control unit 104 controls the indoor set temperature according to the operation mode of the air conditioner, and also includes: when the operation mode of the air conditioner is a heating mode, judging the size of the indoor set temperature; if the indoor set temperature is greater than or equal to a third preset temperature, reducing the indoor set temperature by a second preset adjustment amount; if the indoor set temperature is less than the third preset temperature and greater than a fourth preset temperature, reducing the indoor set temperature to a fourth preset temperature; if the indoor set temperature is less than or equal to the fourth preset temperature, maintaining the indoor set temperature unchanged.

[0095] The fourth preset temperature is the most energy-saving setting temperature for the air conditioner when heating, which can be set to 22°C. The energy-saving effect of the air conditioner is best when the indoor set temperature is 22°C or lower. Therefore, after starting the energy-saving function, it is necessary to lower the indoor set temperature to 22°C to reduce the energy consumption of the air conditioner. The third preset temperature is used to distinguish different ways of raising the indoor set temperature, and can be set to 26°C. Specifically, when the indoor set temperature is ≥26°C, the indoor set temperature is lowered by the second preset adjustment amount, and the second preset adjustment amount can be set to 4°C. When 26°C>indoor set temperature>22°C, the indoor set temperature is lowered to 22°C. When the indoor set temperature is ≤22°C, the indoor set temperature is kept unchanged.

[0096] In some embodiments, the control unit 104 is further configured to: within a preset time after the indoor set temperature is lowered by the second preset adjustment amount, if the detection result of the detection module continues to be that there is no one indoors, and the indoor set temperature is greater than a fourth preset temperature, then the indoor set temperature is lowered to the fourth preset temperature.

[0097] When the air conditioner is heating, if the indoor set temperature is ≥ 26°C, the indoor set temperature is first reduced by -4°C. If it is detected that there is still no one in the room for 30 minutes, and the indoor set temperature is > 22°C at this time, the indoor set temperature is reduced to 22°C. For example, if the initial indoor set temperature is 28°C, 28°C-4°C=24°C is first used as the current indoor set temperature. If there is no one in the room for 30 minutes, 22°C is used as the current indoor set temperature.

[0098] In the heating mode, the indoor set temperature is lowered by using the third preset temperature difference, and the preset time is set for segmented step cooling, so as to avoid excessive reduction of the indoor temperature under the energy-saving function, causing the user to feel uncomfortable with the temperature when returning to the room, and improve the comfort of the indoor environment under the energy-saving function.

[0099] Figure 4 The flowchart for adjusting the indoor set temperature of the air conditioner under the energy saving function is as follows: Figure 4 As shown, the method includes:

[0100] Step 1: After the air conditioner turns on the energy-saving function, read the operating status of the air conditioner, including whether the air conditioner is running in cooling or heating mode and the set temperature of the air conditioner. When the air conditioner is running in cooling mode, execute step 2; when the air conditioner is running in heating mode, execute step 3.

[0101] Step 2: If it is detected that there is no one in the room, determine the set temperature. If the set temperature is ≤ 24°C, the set temperature + 2°C is used as the current set temperature. If no one is detected in the room for the next 30 minutes, 27°C is used as the current set temperature; if 24°C < set temperature < 27°C, 27°C is used as the current set temperature; if the set temperature is ≥ 27°C, the set temperature remains unchanged.

[0102] Step 3: If it is detected that there is no one in the room, determine the set temperature. If the set temperature is ≥ 26°C, the set temperature + 4°C is used as the current set temperature. If it is detected that there is no one in the room for 30 minutes, 22°C is used as the current set temperature; if 22°C < set temperature < 26°C, 22°C is used as the current set temperature; if the set temperature is ≤ 22°C, the set temperature remains unchanged.

[0103] In some embodiments, the control unit 104 controls the speed of the fresh air fan according to the operating mode of the air conditioner and the indoor set temperature, including: when the operating mode of the air conditioner is the cooling mode, judging the size of the indoor set temperature; if the indoor set temperature is less than or equal to the first preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, then reducing the speed of the fresh air fan at a first preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, then reducing the speed of the fresh air fan at a first preset rate until the speed of the fresh air fan is the second preset speed; if the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, at this time if If the rotation speed of the fresh air fan is greater than the first preset speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the first preset speed; if the rotation speed of the fresh air fan is less than or equal to the first preset speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the second preset speed; if the indoor set temperature is greater than or equal to the second preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is the first preset speed; if the rotation speed of the fresh air fan is less than or equal to the first preset speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is the second preset speed.

[0104] In some embodiments, the control unit 104 controls the speed of the fresh air fan according to the operating mode of the air conditioner and the indoor set temperature, and also includes: when the operating mode of the air conditioner is the heating mode, judging the size of the indoor set temperature; if the indoor set temperature is greater than or equal to the third preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, then reducing the speed of the fresh air fan at a first preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, then reducing the speed of the fresh air fan at the first preset rate until the speed of the fresh air fan is the second preset speed; if the indoor set temperature is less than the third preset temperature and greater than the fourth preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed if the indoor set temperature is less than or equal to the fourth preset temperature, and at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced at a third preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced at a third preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced at a third preset rate until the speed of the fresh air fan is the second preset speed; the first preset rate < the second preset rate < the third preset rate.

[0105] When the energy-saving function is turned on, if the air conditioner has already turned on the fresh air function and the fresh air fan is in working condition, the energy-saving effect of the air conditioner can be further improved by appropriately reducing the speed of the fresh air fan.

[0106] The wind speed of the fresh air fan is the same as that of the fan in the air conditioner, including 7 gears: super, high, medium, medium, medium, low, low, and silent. Each gear corresponds to a different speed value. The first preset speed is the speed value corresponding to the medium speed, and the second preset speed is the speed value corresponding to the silent speed.

[0107] Optionally, when controlling the rotation speed of the fresh air fan, the rotation speed of the interior fan is synchronously controlled in the same control manner.

[0108] When controlling the speed of the fresh air fan, the judgment conditions in cooling mode and heating mode are different. The specific control process is:

[0109] If the indoor set temperature is ≤24℃ during cooling or ≥26℃ during heating, if the speed of the fresh air fan is greater than the first preset speed, that is, the wind speed of the fresh air fan is above the medium wind speed, the speed of the fresh air fan is reduced according to the first preset rate until the current speed is the speed value corresponding to the medium wind speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced according to the first preset rate until the current speed is the speed value corresponding to the silent speed.

[0110] If the indoor set temperature is 24℃ < 27℃ during cooling or 22℃ < 26℃ during heating, if the speed of the fresh air fan is greater than the first preset speed, that is, the wind speed of the fresh air fan is above the medium wind speed, the speed of the fresh air fan is reduced according to the second preset rate until the current speed is the speed value corresponding to the medium wind speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced according to the second preset rate until the current speed is the speed value corresponding to the silent speed.

[0111] If the indoor set temperature is ≥27℃ during cooling or ≤22℃ during heating, at this time, if the speed of the fresh air fan is greater than the first preset speed, that is, the wind speed of the fresh air fan is above the medium wind speed, the speed of the fresh air fan is reduced according to the third preset rate until the current speed is the speed value corresponding to the medium wind speed; at this time, if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced according to the third preset rate until the current speed is the speed value corresponding to the silent speed.

[0112] The first preset rate can be set to 5r / min, the second preset rate can be set to 10r / min, and the third preset rate can be set to 20r / min. That is, the higher the indoor set temperature during cooling, the greater the rate of reduction of the fresh air fan speed, and the lower the indoor set temperature during heating, the greater the rate of reduction of the fresh air fan speed. By setting different reduction rates of the fresh air fan speed according to different indoor set temperatures, not only the power consumption of the fresh air fan is reduced, but also the degree of neutralization of indoor cold or heat due to the introduction of fresh air is reduced, reducing the extra energy consumed by the air conditioning system to maintain the set temperature, reducing energy consumption, and avoiding large fluctuations in indoor temperature to ensure indoor comfort.

[0113] In some embodiments, the control unit 104 is further configured to: when the operating time of the fresh air function reaches a preset time, and the detection result of the detection module continues to be that there is no one in the room during the preset time, control the fresh air fan to stop running and turn off the fresh air function.

[0114] The preset duration can be set to 2 hours. In the energy-saving function, if the continuous operation time of the fresh air function reaches 2 hours and there is no one in the room during the 2 hours, the fresh air function will be turned off and the fresh air fan will stop running to avoid energy waste and improve the energy efficiency of the air conditioner.

[0115] Optionally, after the fresh air function is turned off under the energy-saving function, if it is detected that someone is in the room, the fresh air function is turned on and the fresh air fan starts running again.

[0116] Figure 5 This is a flow chart of adjusting the speed of the fresh air fan under the energy-saving function. Figure 5 As shown, the method includes:

[0117] Step 11, after the energy-saving function of the air conditioner is turned on, if the fresh air function is turned on, the set temperature and operating mode of the air conditioner are read.

[0118] Step 12, when it is detected that there is no one in the room, determine the set temperature. If the set temperature is ≤24℃ for cooling or ≥26℃ for heating, execute step 13; if 24℃ < set temperature <27℃ for cooling or 26℃ > set temperature >22℃ for heating, execute step 14; if the set temperature is ≥27℃ for cooling or ≤22℃ for heating, execute step 15.

[0119] Step 13, determine the wind speed of the fresh air fan. If the wind speed of the fresh air fan is above the medium wind speed, reduce the speed of the fresh air fan at a rate of 5r / min until it drops to the medium wind speed; if the wind speed of the fresh air fan is at or below the medium wind speed, reduce the speed of the fresh air fan at a rate of 5r / min until it drops to the silent speed. Then execute step 16.

[0120] Step 14, determine the wind speed of the fresh air fan. If the wind speed of the fresh air fan is above the medium wind speed, reduce the speed of the fresh air fan at a rate of 10r / min until it drops to the medium wind speed; if the wind speed of the fresh air fan is at or below the medium wind speed, reduce the speed of the fresh air fan at a rate of 10r / min until it drops to the silent speed. Then execute step 16.

[0121] Step 15, determine the wind speed of the fresh air fan. If the wind speed of the fresh air fan is above the medium wind speed, reduce the speed of the fresh air fan at a rate of 20r / min until it drops to the medium wind speed; if the wind speed of the fresh air fan is at or below the medium wind speed, reduce the speed of the fresh air fan at a rate of 20r / min until it drops to the silent speed. Then execute step 16.

[0122] Step 16: If the fresh air function runs for ≥ 2 hours and there is no one in the room during this process, turn off the fresh air function.

[0123] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0124] According to the technical solution of the present invention, the air conditioner includes a detection module for detecting whether there is someone in the room; after the air conditioner is running and the energy-saving function is turned on, if it is detected that there is no one in the room, the indoor set temperature is controlled according to the operation mode of the air conditioner; at the same time, when the air conditioner has the fresh air function turned on, the speed of the fresh air fan is controlled according to the operation mode of the air conditioner and the indoor set temperature. Thus, by adjusting the indoor set temperature and the speed of the fresh air fan of the air conditioner after no one is in the room, the energy consumption of the air conditioner is reduced and the energy efficiency of the system is improved.

[0125] According to an embodiment of the present invention, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner may include: the control device of the air conditioner described above.

[0126] Since the processing and functions implemented by the air conditioner of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0127] According to the technical solution of the present invention, the air conditioner includes a detection module for detecting whether there is someone in the room; after the air conditioner is running and the energy-saving function is turned on, if it is detected that there is no one in the room, the indoor set temperature is controlled according to the operation mode of the air conditioner; at the same time, when the air conditioner has the fresh air function turned on, the speed of the fresh air fan is controlled according to the operation mode of the air conditioner and the indoor set temperature. Thus, by adjusting the indoor set temperature and the speed of the fresh air fan of the air conditioner after no one is in the room, the energy consumption of the air conditioner is reduced and the energy efficiency of the system is improved.

[0128] According to an embodiment of the present invention, a storage medium corresponding to the air conditioner control method is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the air conditioner control method described above.

[0129] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments, and no further elaboration will be made here.

[0130] According to the technical solution of the present invention, the air conditioner includes a detection module for detecting whether there is someone in the room; after the air conditioner is running and the energy-saving function is turned on, if it is detected that there is no one in the room, the indoor set temperature is controlled according to the operation mode of the air conditioner; at the same time, when the air conditioner has the fresh air function turned on, the speed of the fresh air fan is controlled according to the operation mode of the air conditioner and the indoor set temperature. Thus, by adjusting the indoor set temperature and the speed of the fresh air fan of the air conditioner after no one is in the room, the energy consumption of the air conditioner is reduced and the energy efficiency of the system is improved.

[0131] According to an embodiment of the present invention, a computer program product corresponding to the air conditioner control method is also provided, wherein the computer program product comprises a computer program, and when the computer program product is processed and executed, the steps of the air conditioner control method are implemented.

[0132] Since the processing and functions implemented by the computer program product of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for the details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0133] According to the technical solution of the present invention, the air conditioner includes a detection module for detecting whether there is someone in the room; after the air conditioner is running and the energy-saving function is turned on, if it is detected that there is no one in the room, the indoor set temperature is controlled according to the operation mode of the air conditioner; at the same time, when the air conditioner has the fresh air function turned on, the speed of the fresh air fan is controlled according to the operation mode of the air conditioner and the indoor set temperature. Thus, by adjusting the indoor set temperature and the speed of the fresh air fan of the air conditioner after no one is in the room, the energy consumption of the air conditioner is reduced and the energy efficiency of the system is improved.

[0134] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0135] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner comprises a fresh air blower and a detection module; the detection module is used to detect whether there is someone in the room; the air conditioner has energy-saving function and fresh air function; The method comprises: After the air conditioner is running and the energy-saving function is turned on, obtaining the operating mode of the air conditioner, the indoor set temperature, and the detection result of the detection module; When the detection module detects that there is no one indoors, the indoor set temperature is controlled according to the operating mode of the air conditioner; at the same time, when the fresh air function of the air conditioner is turned on, the speed of the fresh air fan is controlled according to the operating mode of the air conditioner and the indoor set temperature.

2. The air conditioner control method according to claim 1, characterized in that: Controlling the indoor set temperature according to the operation mode of the air conditioner includes: When the operation mode of the air conditioner is a cooling mode, determining the indoor set temperature; If the indoor set temperature is less than or equal to the first preset temperature, increasing the indoor set temperature by a first preset adjustment amount; If the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, raising the indoor set temperature to the second preset temperature; If the indoor set temperature is greater than or equal to the second preset temperature, the indoor set temperature is kept unchanged; or, When the operation mode of the air conditioner is a heating mode, determining the indoor set temperature; If the indoor set temperature is greater than or equal to the third preset temperature, lowering the indoor set temperature by a second preset adjustment amount; If the indoor set temperature is lower than the third preset temperature and higher than the fourth preset temperature, lowering the indoor set temperature to the fourth preset temperature; If the indoor set temperature is less than or equal to the fourth preset temperature, the indoor set temperature is kept unchanged.

3. The air conditioner control method according to claim 2, characterized in that: Also includes: Within a preset time after the indoor set temperature is increased by the first preset adjustment amount, if the detection result of the detection module continues to be that no one is indoors, and the indoor set temperature is lower than the second preset temperature, the indoor set temperature is increased to the second preset temperature; or, Within a preset time after the indoor set temperature is lowered by the second preset adjustment amount, if the detection result of the detection module continues to be that there is no one indoors, and the indoor set temperature is greater than a fourth preset temperature, the indoor set temperature is lowered to the fourth preset temperature.

4. The air conditioner control method according to claim 1, characterized in that: Controlling the speed of the fresh air fan according to the operating mode of the air conditioner and the indoor set temperature includes: When the operation mode of the air conditioner is a cooling mode, determining the indoor set temperature; If the indoor set temperature is less than or equal to the first preset temperature, at this time if the rotation speed of the fresh air fan is greater than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a first preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is less than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at the first preset rate until the rotation speed of the fresh air fan is the second preset rotation speed; If the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, at this time, if the rotation speed of the fresh air fan is greater than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is less than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the second preset rotation speed; If the indoor set temperature is greater than or equal to the second preset temperature, at this time, if the rotation speed of the fresh air fan is greater than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is less than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a third preset rate until the rotation speed of the fresh air fan is the second preset rotation speed; or, When the operation mode of the air conditioner is a heating mode, determining the indoor set temperature; If the indoor set temperature is greater than or equal to the third preset temperature, at this time, if the rotation speed of the fresh air fan is greater than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at the first preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is less than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at the first preset rate until the rotation speed of the fresh air fan is the second preset rotation speed; If the indoor set temperature is lower than the third preset temperature and higher than the fourth preset temperature, at this time, if the rotation speed of the fresh air fan is higher than the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the first preset rotation speed; if the rotation speed of the fresh air fan is lower than or equal to the first preset rotation speed, the rotation speed of the fresh air fan is reduced at a second preset rate until the rotation speed of the fresh air fan is the second preset rotation speed; If the indoor set temperature is less than or equal to the fourth preset temperature, at this time if the speed of the fresh air fan is greater than the first preset speed, the speed of the fresh air fan is reduced at a third preset rate until the speed of the fresh air fan is the first preset speed; if the speed of the fresh air fan is less than or equal to the first preset speed, the speed of the fresh air fan is reduced at a third preset rate until the speed of the fresh air fan is the second preset speed; the first preset rate < the second preset rate < the third preset rate.

5. The air conditioner control method according to claim 4, characterized in that: Also includes: When the running time of the fresh air function reaches a preset time, and the detection result of the detection module continues to be that there is no one in the room during the preset time, the fresh air fan is controlled to stop running and the fresh air function is turned off.

6. A control device for an air conditioner, characterized in that: The air conditioner comprises a fresh air blower and a detection module; the detection module is used to detect whether there is someone in the room; the air conditioner has energy-saving function and fresh air function; The device comprises: an acquisition unit, configured to acquire an operation mode of the air conditioner, an indoor set temperature, and a detection result of the detection module after the air conditioner is running and the energy-saving function is turned on; The control unit is configured to control the indoor set temperature according to the operating mode of the air conditioner after the detection result of the detection module is that there is no one in the room; and at the same time, when the fresh air function of the air conditioner is turned on, control the speed of the fresh air fan according to the operating mode of the air conditioner and the indoor set temperature.

7. The air conditioner control device according to claim 6, characterized in that: The control unit controls the indoor set temperature according to the operation mode of the air conditioner, including: When the operation mode of the air conditioner is a cooling mode, determining the indoor set temperature; If the indoor set temperature is less than or equal to the first preset temperature, increasing the indoor set temperature by a first preset adjustment amount; If the indoor set temperature is greater than the first preset temperature and less than the second preset temperature, raising the indoor set temperature to the second preset temperature; If the indoor set temperature is greater than or equal to the second preset temperature, the indoor set temperature is kept unchanged; or, When the operation mode of the air conditioner is a heating mode, determining the indoor set temperature; If the indoor set temperature is greater than or equal to the third preset temperature, lowering the indoor set temperature by a second preset adjustment amount; If the indoor set temperature is lower than the third preset temperature and higher than the fourth preset temperature, lowering the indoor set temperature to the fourth preset temperature; If the indoor set temperature is less than or equal to the fourth preset temperature, the indoor set temperature is kept unchanged.

8. An air conditioner, characterized in that: include: The control device for an air conditioner as claimed in claim 6 or 7.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the air conditioner control method according to any one of claims 1 to 5.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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