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. The air conditioner comprises a fresh air device and an oxygen production device. The method comprises the steps that when the air conditioner runs, a fresh air device and an oxygen generation device are controlled to be started according to the indoor carbon dioxide concentration; after the fresh air device is started, the fresh air volume of the fresh air device is controlled according to the indoor temperature and the outdoor temperature; and after the oxygen generation device is started, the oxygen generation amount of the oxygen generation device is controlled according to the indoor oxygen concentration. According to the scheme, by means of the synergistic effect of the fresh air device and the oxygen generation device, the indoor air quality can be kept when outdoor air is poor, meanwhile, the fresh air amount of the fresh air device and the oxygen generation amount of the oxygen generation device are reasonably controlled, the air purification efficiency is improved, and the air conditioner energy consumption is reduced.

Description

Technical Field

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

[0002] The air conditioning fresh air system introduces outdoor air into the room to ensure the freshness of the indoor air. However, in the case of poor outdoor air quality or in extreme climates, the effect of the air conditioning fresh air system cannot meet the expectations and cannot meet the user's requirements for indoor air quality.

[0003] 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

[0004] 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 fresh air system of the air conditioner in the related scheme is easily affected by the poor outdoor air quality or extreme weather, resulting in low indoor air conditioning ability of the fresh air system and deterioration of the indoor environment, so as to achieve the effect of maintaining the indoor air quality even when the outdoor air is poor by utilizing the synergistic effect of the fresh air device and the oxygen production device, and at the same time reasonably controlling the fresh air volume of the fresh air device and the oxygen production volume of the oxygen production device, thereby improving the air purification efficiency and reducing the energy consumption of the air conditioner.

[0005] The present invention provides a control method for an air conditioner, the air conditioner comprising a fresh air device and an oxygen generator; the fresh air device is used to introduce outdoor air into a room; the oxygen generator is used to supply oxygen to the room; the method comprises: during the operation of the air conditioner, obtaining indoor carbon dioxide concentration and oxygen concentration, indoor temperature, and outdoor temperature; controlling the fresh air device and the oxygen generator to be turned on respectively according to the carbon dioxide concentration; after the fresh air device is turned on, controlling the fresh air volume of the fresh air device according to the indoor temperature and the outdoor temperature; after the oxygen generator is turned on, controlling the oxygen production volume of the oxygen generator according to the indoor oxygen concentration.

[0006] In some embodiments, the fresh air device and the oxygen generating device are controlled to be turned on respectively according to the carbon dioxide concentration, including: judging the range of the carbon dioxide concentration, including a first range, a second range, and a third range; the first range < the second range < the third range; if the carbon dioxide concentration is in the first range, the fresh air device and the oxygen generating device are not turned on; if the carbon dioxide concentration is in the second range, the fresh air device is turned on; if the carbon dioxide concentration is in the third range, the fresh air device and the oxygen generating device are turned on.

[0007] In some embodiments, the method further includes: if the carbon dioxide concentration is within a first range, controlling the air conditioner to operate in a preset air supply mode.

[0008] In some embodiments, the fresh air volume of the fresh air device is controlled according to the indoor temperature and the outdoor temperature, including: recording the difference between the indoor temperature and the outdoor temperature as the indoor and outdoor temperature difference, and judging the size relationship between the indoor and outdoor temperature difference and a preset temperature difference; if the indoor and outdoor temperature difference is less than or equal to the preset temperature difference, controlling the fresh air volume of the fresh air device to be a preset first fresh air volume; if the indoor and outdoor temperature difference is greater than the preset temperature difference, controlling the fresh air volume of the fresh air device to be a preset first fresh air volume; the preset first fresh air volume>the preset second fresh air volume.

[0009] In some embodiments, controlling the oxygen production amount of the oxygen generator according to the indoor oxygen concentration includes: recording the difference between the indoor oxygen concentration and a preset oxygen concentration threshold as an oxygen concentration difference, and judging the size relationship between the oxygen concentration difference and a preset oxygen concentration difference; if the oxygen concentration difference is less than the preset oxygen concentration difference, controlling the oxygen production amount of the oxygen generator to be a preset first oxygen production amount; if the oxygen concentration difference is greater than or equal to the preset oxygen concentration difference, controlling the oxygen production amount of the oxygen generator to be a preset second oxygen production amount; the preset first oxygen production amount < the preset second oxygen production amount.

[0010] Matching the above method, the present invention provides a control device for an air conditioner on the other hand, the air conditioner includes a fresh air device and an oxygen generator; the fresh air device is used to introduce outdoor air into the room; the oxygen generator is used to supply oxygen to the room; the control device includes: an acquisition unit, configured to acquire indoor carbon dioxide concentration and oxygen concentration, indoor temperature, and outdoor temperature during the operation of the air conditioner; a control unit, configured to control the opening of the fresh air device and the opening of the oxygen generator respectively according to the carbon dioxide concentration; the control unit is further configured to control the fresh air volume of the fresh air device according to the indoor temperature and the outdoor temperature after the fresh air device is turned on; and to control the oxygen production volume of the oxygen generator according to the indoor oxygen concentration after the oxygen generator is turned on.

[0011] In some embodiments, the control unit controls the opening of the fresh air device and the oxygen production device respectively according to the carbon dioxide concentration, including: judging the range of the carbon dioxide concentration, including a first range, a second range, and a third range; the first range < the second range < the third range; if the carbon dioxide concentration is in the first range, the fresh air device and the oxygen production device are not turned on; if the carbon dioxide concentration is in the second range, the fresh air device is turned on; if the carbon dioxide concentration is in the third range, the fresh air device and the oxygen production device are turned on.

[0012] In some embodiments, the control unit is further configured to control the air conditioner to operate in a preset air supply mode if the carbon dioxide concentration is within a first range.

[0013] In some embodiments, the control unit controls the fresh air volume of the fresh air device according to the indoor temperature and the outdoor temperature, including: recording the difference between the indoor temperature and the outdoor temperature as the indoor and outdoor temperature difference, and judging the relationship between the indoor and outdoor temperature difference and a preset temperature difference; if the indoor and outdoor temperature difference is less than or equal to the preset temperature difference, controlling the fresh air volume of the fresh air device to be a preset first fresh air volume; if the indoor and outdoor temperature difference is greater than the preset temperature difference, controlling the fresh air volume of the fresh air device to be a preset first fresh air volume; the preset first fresh air volume > the preset second fresh air volume.

[0014] In some embodiments, the control unit controls the oxygen production amount of the oxygen generator according to the indoor oxygen concentration, including: recording the difference between the indoor oxygen concentration and a preset oxygen concentration threshold as the oxygen concentration difference, and judging the size relationship between the oxygen concentration difference and the preset oxygen concentration difference; if the oxygen concentration difference is less than the preset oxygen concentration difference, controlling the oxygen production amount of the oxygen generator to be a preset first oxygen production amount; if the oxygen concentration difference is greater than or equal to the preset oxygen concentration difference, controlling the oxygen production amount of the oxygen generator to be a preset second oxygen production amount; the preset first oxygen production amount < the preset second oxygen production amount.

[0015] Matching the above device, the present invention provides an air conditioner on another aspect, including: the control device of the air conditioner mentioned above.

[0016] 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.

[0017] 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.

[0018] In the scheme of the present invention, the air conditioner includes a fresh air device and an oxygen generator; when the air conditioner is in operation, the fresh air device and the oxygen generator are controlled to be turned on respectively according to the indoor carbon dioxide concentration; after the fresh air device is turned on, the fresh air volume of the fresh air device is controlled according to the indoor and outdoor temperatures; after the oxygen generator is turned on, the oxygen production volume of the oxygen generator is controlled according to the indoor oxygen concentration. Thus, by utilizing the synergistic effect of the fresh air device and the oxygen generator, the indoor air quality can be maintained even when the outdoor air is poor, and at the same time, the fresh air volume of the fresh air device and the oxygen production volume of the oxygen generator are reasonably controlled, thereby improving the air purification efficiency and reducing the energy consumption of the air conditioner.

[0019] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention.

[0020] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a flow chart of an embodiment of a method for controlling an air conditioner of the present invention;

[0022] Figure 2 A schematic structural diagram of an embodiment of a control device for an air conditioner of the present invention;

[0023] Figure 3 FIG. 4 is a flow chart of another embodiment of the air conditioner control method of the present invention.

[0024] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0025] 102 - acquisition unit; 104 - control unit. DETAILED DESCRIPTION

[0026] 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 creative work are within the scope of protection of the present invention.

[0027] 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 device and an oxygen generator; the fresh air device is used to introduce outdoor air into a room to achieve circulation and ventilation between indoor and outdoor air; and the oxygen generator is used to supply oxygen to the room.

[0028] like Figure 1 The flowchart of an embodiment of the method of the present invention is shown in FIG. The air conditioner control method may include: steps S110 to S130.

[0029] In step S110, during the operation of the air conditioner, the indoor carbon dioxide concentration and oxygen concentration, indoor temperature, and outdoor temperature are obtained.

[0030] The air conditioner indoor unit is equipped with a carbon dioxide sensor and an oxygen concentration sensor, which are used to detect the carbon dioxide concentration and oxygen concentration in the room respectively.

[0031] In step S120, the fresh air device and the oxygen production device are controlled to be turned on respectively according to the carbon dioxide concentration.

[0032] When the air conditioner is turned on, the specific condition of the indoor air is first judged by the carbon dioxide concentration. If the carbon dioxide concentration is too high, the oxygen concentration is relatively low. At this time, the indoor air quality is considered to be poor and the indoor air needs to be purified. The purification methods include turning on the fresh air device to exchange indoor and outdoor air and turning on the oxygen generator to increase the indoor oxygen concentration. If the carbon dioxide concentration is low, there is no need to purify the indoor air.

[0033] In some embodiments, in step S120, the specific process of controlling the start of the fresh air device and the oxygen production device according to the carbon dioxide concentration includes: judging the range of the carbon dioxide concentration, including a first range, a second range, and a third range; the first range < the second range < the third range; if the carbon dioxide concentration is in the first range, the fresh air device and the oxygen production device are not turned on; if the carbon dioxide concentration is in the second range, the fresh air device is turned on; if the carbon dioxide concentration is in the third range, the fresh air device and the oxygen production device are turned on.

[0034] In some embodiments, if the carbon dioxide concentration is within a first range, the air conditioner is controlled to operate in a preset air supply mode. In the air supply mode, the air conditioner does not perform cooling or heating, and only the indoor fan circulates and delivers the indoor air, allowing the indoor air to circulate.

[0035] The first range is the range of carbon dioxide concentration when the indoor air quality is good, the second range is the range of carbon dioxide concentration when the indoor air quality is average, and the third range is the range of carbon dioxide concentration when the indoor air quality is poor. The first range can be set to 0-500ppm, the second range can be set to 500-1000ppm, and the third range can be set to a range greater than 1000ppm. When the indoor carbon dioxide concentration is in the first range, there is no need to purify the indoor air, and the air conditioner operates according to the set mode. At this time, if the indoor temperature reaches the set temperature, the air conditioner switches to the air supply mode; when the indoor carbon dioxide concentration is in the second range, the fresh air device is turned on to circulate the indoor and outdoor air, thereby reducing the indoor carbon dioxide concentration; when the indoor carbon dioxide concentration is in the third range, the fresh air device and the oxygen generator are turned on to further improve the purification efficiency of the indoor air.

[0036] The indoor carbon dioxide concentration increases gradually, that is, when the carbon dioxide concentration increases to the third range, the fresh air device has been running for a period of time, but it has not reduced the carbon dioxide concentration. At this time, the oxygen generator is turned on again, and the fresh air device and the oxygen generator work together to improve the efficiency of air purification.

[0037] Since the power consumption of oxygen generators is usually high and they are easily damaged after long-term operation, when it is determined that the indoor air needs to be purified, the fresh air device is used to purify the air first. If the fresh air device cannot meet the purification needs, the oxygen generator is turned on to reduce the energy consumption of the air conditioner and extend the service life of the oxygen generator.

[0038] In step S130, after the fresh air device is turned on, the fresh air volume of the fresh air device is controlled according to the indoor temperature and the outdoor temperature; after the oxygen generator is turned on, the oxygen production volume of the oxygen generator is controlled according to the indoor oxygen concentration.

[0039] By utilizing the synergistic effect of the fresh air device and the oxygen generator, the indoor air quality can be maintained at a good level even when the outdoor environment is poor. When purifying indoor air, the fresh air device is used first to avoid the oxygen generator running for a long time and affecting the service life of the oxygen generator. At the same time, by reasonably controlling the fresh air volume of the fresh air device and the oxygen production volume of the oxygen generator, the efficiency of air purification is improved and the energy consumption of the system is reduced.

[0040] In some embodiments, in step S130, the specific process of controlling the fresh air volume of the fresh air device according to the indoor temperature and the outdoor temperature includes: recording the difference between the indoor temperature and the outdoor temperature as the indoor and outdoor temperature difference, and judging the relationship between the indoor and outdoor temperature difference and a preset temperature difference; if the indoor and outdoor temperature difference is less than or equal to the preset temperature difference, controlling the fresh air volume of the fresh air device to be a preset first fresh air volume; if the indoor and outdoor temperature difference is greater than the preset temperature difference, controlling the fresh air volume of the fresh air device to be a preset first fresh air volume; the preset first fresh air volume>the preset second fresh air volume.

[0041] When the temperature difference between indoors and outdoors is large, introducing outdoor air into the room will reduce indoor comfort. The preset temperature difference is used to determine whether the temperature difference between indoors and outdoors is large, and can be set to 8°C. If the temperature difference between indoors and outdoors is ≤8°C, it is considered that introducing outdoor air into the room will not affect indoor comfort. The fresh air device can operate at a larger preset first fresh air volume to allow more outdoor air to circulate into the room. At this time, the air purification rate is higher; if the indoor and outdoor temperatures are greater than 8°C, it is considered that introducing too much outdoor air will affect indoor comfort. The fresh air device operates at a smaller preset second fresh air volume to allow less outdoor air to circulate into the room. At this time, the air purification rate is lower. Optionally, the preset first fresh air volume can be set to 30m 3 / h, the preset second fresh air volume can be set to 0, that is, when the indoor and outdoor temperature is greater than 8℃, the fresh air device will not be turned on, and the air conditioner will operate in the air supply mode. The way to control the fresh air volume of the fresh air device includes adjusting the wind speed of the fresh air fan and the opening of the air valve.

[0042] Optionally, in order to improve the accuracy of control, multiple range intervals of indoor and outdoor temperature difference can be set, each range interval corresponds to the fresh air volume of the fresh air device, and the larger the range interval, the smaller the fresh air volume, that is, the greater the temperature difference between indoor and outdoor, the smaller the fresh air volume.

[0043] Optionally, the fresh air volume of the fresh air device can also be controlled according to the outdoor carbon dioxide concentration. The greater the outdoor carbon dioxide concentration, the smaller the fresh air volume of the fresh air device. For example, when the outdoor carbon dioxide concentration is ≤ a preset concentration, the fresh air volume of the fresh air device is a larger first fresh air volume; when the outdoor carbon dioxide concentration is > the preset concentration, the fresh air volume of the fresh air device is a smaller second fresh air volume.

[0044] In some embodiments, in step S130, the specific process of controlling the oxygen production amount of the oxygen generator according to the indoor oxygen concentration includes: recording the difference between the indoor oxygen concentration and the preset oxygen concentration threshold as the oxygen concentration difference, and judging the size relationship between the oxygen concentration difference and the preset oxygen concentration difference; if the oxygen concentration difference is less than the preset oxygen concentration difference, controlling the oxygen production amount of the oxygen generator to be a preset first oxygen production amount; if the oxygen concentration difference is greater than or equal to the preset oxygen concentration difference, controlling the oxygen production amount of the oxygen generator to be a preset second oxygen production amount; the preset first oxygen production amount < the preset second oxygen production amount.

[0045] The higher the indoor carbon dioxide concentration is, the lower the oxygen concentration in the air is. Therefore, after the oxygen generator is turned on, the oxygen production of the oxygen generator is controlled according to the size of the indoor oxygen concentration. The preset oxygen concentration threshold is the target value of the indoor oxygen concentration, which can be set by the user. The preset oxygen concentration difference is used to determine whether the indoor oxygen concentration is close to the oxygen concentration threshold, which can be set to 1000ppm. When the oxygen concentration difference is <1000ppm, it is considered that the indoor oxygen concentration is relatively high. At this time, oxygen can be supplied according to the smaller preset first oxygen production amount; when the oxygen concentration difference is ≥1000ppm, it is considered that the indoor oxygen concentration is relatively low. At this time, oxygen is supplied according to the larger preset second oxygen production amount. The first oxygen supply can be set to 0.05m 3 / h, the second oxygen supply can be set to 0.2m 3 / h.

[0046] Optionally, in order to improve the accuracy of control, multiple range intervals of oxygen concentration difference can be set, each range interval corresponds to the oxygen production capacity of the oxygen generator, and the larger the range interval, the greater the oxygen production capacity, that is, the lower the indoor oxygen concentration, the greater the oxygen production capacity.

[0047] Optionally, during the process of purifying the indoor air, the fresh air device and the oxygen generator are controlled to stop running according to the running time, so as to avoid the fresh air device and the oxygen generator stopping running for too long and affecting the service life. For example, the fresh air device and the oxygen generator stop running after the running time reaches a preset time.

[0048] Optionally, during the process of purifying the indoor air, the fresh air device and the oxygen generator can be controlled to stop running according to the indoor carbon dioxide concentration to ensure a high indoor air quality. For example, when the indoor carbon dioxide concentration is ≤500ppm, the fresh air device and the oxygen generator stop running.

[0049] Optionally, during the process of purifying the indoor air, the fresh air device and the oxygen generator can be controlled to stop running according to the indoor oxygen concentration to ensure better indoor air freshness. For example, when the indoor oxygen concentration reaches an oxygen concentration threshold, the fresh air device and the oxygen generator stop running.

[0050] Figure 3 FIG. 1 is a flow chart of another embodiment of the air conditioner control method of the present invention. Figure 3 As shown, the method includes:

[0051] Step 1: During the operation of the air conditioner, detect the indoor CO2 concentration. When the CO2 concentration is ≤500ppm and the indoor temperature reaches the set temperature, the air conditioner turns on the air supply mode. At this time, the air conditioner circulates the indoor air, does not introduce outdoor fresh air, and does not produce oxygen; if 500ppm<CO2 concentration≤1000ppm, execute step 2; if CO2 concentration>1000ppm, execute step 3.

[0052] Step 2, turn on the fresh air device, detect the indoor and outdoor temperatures, determine the indoor and outdoor temperature difference ΔT, and judge whether ΔT<threshold T. If ΔT<T, the fresh air device operates in fresh air mode 1; if ΔT≥T, the fresh air device operates in fresh air mode 2. Among them, the fresh air volume of fresh air mode 1 is greater than the fresh air volume of fresh air mode 2.

[0053] Step 3, turn on the oxygen generator, detect the indoor oxygen concentration, determine the difference ΔC between the indoor oxygen concentration and the set oxygen concentration, and judge whether ΔC < threshold C. If ΔC < C, the oxygen generator operates in oxygen production mode 1; if ΔC ≥ C, the oxygen generator operates in oxygen production mode 2. Among them, the oxygen production amount of oxygen production mode 1 is less than the oxygen production amount of oxygen production mode 2.

[0054] According to the technical solution of this embodiment, the air conditioner includes a fresh air device and an oxygen generator; when the air conditioner is running, the fresh air device and the oxygen generator are controlled to be turned on respectively according to the indoor carbon dioxide concentration; after the fresh air device is turned on, the fresh air volume of the fresh air device is controlled according to the indoor and outdoor temperatures; after the oxygen generator is turned on, the oxygen production of the oxygen generator is controlled according to the indoor oxygen concentration. Thus, by utilizing the synergistic effect of the fresh air device and the oxygen generator, the indoor air quality can be maintained even when the outdoor air is poor, and at the same time, the fresh air volume of the fresh air device and the oxygen production of the oxygen generator are reasonably controlled, thereby improving the air purification efficiency and reducing the energy consumption of the air conditioner.

[0055] 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 device and an oxygen generator; the fresh air device is used to introduce outdoor air into the room to achieve circulation and ventilation between indoor and outdoor air. The oxygen generator is used to supply oxygen to the room.

[0056] 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.

[0057] The acquisition unit 102 is configured to acquire indoor carbon dioxide concentration and oxygen concentration, indoor temperature, and outdoor temperature during the operation of the air conditioner. The specific functions and processing of the acquisition unit 102 refer to step S110.

[0058] The air conditioner indoor unit is equipped with a carbon dioxide sensor and an oxygen concentration sensor, which are used to detect the carbon dioxide concentration and oxygen concentration in the room respectively.

[0059] The control unit 104 is configured to control the fresh air device and the oxygen generator to be turned on respectively according to the carbon dioxide concentration. The specific functions and processing of the control unit 104 refer to step S120.

[0060] When the air conditioner is turned on, the specific condition of the indoor air is first judged by the carbon dioxide concentration. If the carbon dioxide concentration is too high, the oxygen concentration is relatively low. At this time, the indoor air quality is considered to be poor and the indoor air needs to be purified. The purification methods include turning on the fresh air device to exchange indoor and outdoor air and turning on the oxygen generator to increase the indoor oxygen concentration. If the carbon dioxide concentration is low, there is no need to purify the indoor air.

[0061] In some embodiments, the control unit 104 controls the specific process of turning on the fresh air device and the oxygen production device according to the carbon dioxide concentration, including: judging the range of the carbon dioxide concentration, including a first range, a second range, and a third range; the first range < the second range < the third range; if the carbon dioxide concentration is in the first range, the fresh air device and the oxygen production device are not turned on; if the carbon dioxide concentration is in the second range, the fresh air device is turned on; if the carbon dioxide concentration is in the third range, the fresh air device and the oxygen production device are turned on.

[0062] In some embodiments, the control unit 104 is further configured to control the air conditioner to run a preset air supply mode if the carbon dioxide concentration is within a first range. In the air supply mode, the air conditioner does not perform cooling or heating, and only the indoor fan circulates and delivers the indoor air, so that the indoor air circulates.

[0063] The first range is the range of carbon dioxide concentration when the indoor air quality is good, the second range is the range of carbon dioxide concentration when the indoor air quality is average, and the third range is the range of carbon dioxide concentration when the indoor air quality is poor. The first range can be set to 0-500ppm, the second range can be set to 500-1000ppm, and the third range can be set to a range greater than 1000ppm. When the indoor carbon dioxide concentration is in the first range, there is no need to purify the indoor air, and the air conditioner operates according to the set mode. At this time, if the indoor temperature reaches the set temperature, the air conditioner switches to the air supply mode; when the indoor carbon dioxide concentration is in the second range, the fresh air device is turned on to circulate the indoor and outdoor air, thereby reducing the indoor carbon dioxide concentration; when the indoor carbon dioxide concentration is in the third range, the fresh air device and the oxygen generator are turned on to further improve the purification efficiency of the indoor air.

[0064] The indoor carbon dioxide concentration increases gradually, that is, when the carbon dioxide concentration increases to the third range, the fresh air device has been running for a period of time, but it has not reduced the carbon dioxide concentration. At this time, the oxygen generator is turned on again, and the fresh air device and the oxygen generator work together to improve the efficiency of air purification.

[0065] Since the power consumption of oxygen generators is usually high and they are easily damaged after long-term operation, when it is determined that the indoor air needs to be purified, the fresh air device is used to purify the air first. If the fresh air device cannot meet the purification needs, the oxygen generator is turned on to reduce the energy consumption of the air conditioner and extend the service life of the oxygen generator.

[0066] The control unit 104 is further configured to control the fresh air volume of the fresh air device according to the indoor temperature and the outdoor temperature after the fresh air device is turned on; and to control the oxygen production volume of the oxygen production device according to the indoor oxygen concentration after the oxygen production device is turned on. The specific functions and processing of the control unit 104 refer to step S130.

[0067] By utilizing the synergistic effect of the fresh air device and the oxygen generator, the indoor air quality can be maintained at a good level even when the outdoor environment is poor. When purifying indoor air, the fresh air device is used first to avoid the oxygen generator running for a long time and affecting the service life of the oxygen generator. At the same time, by reasonably controlling the fresh air volume of the fresh air device and the oxygen production volume of the oxygen generator, the efficiency of air purification is improved and the energy consumption of the system is reduced.

[0068] In some embodiments, the control unit 104 controls the specific process of the fresh air volume of the fresh air device according to the indoor temperature and the outdoor temperature, including: recording the difference between the indoor temperature and the outdoor temperature as the indoor and outdoor temperature difference, and judging the relationship between the indoor and outdoor temperature difference and the preset temperature difference; if the indoor and outdoor temperature difference is less than or equal to the preset temperature difference, controlling the fresh air volume of the fresh air device to be the preset first fresh air volume; if the indoor and outdoor temperature difference is greater than the preset temperature difference, controlling the fresh air volume of the fresh air device to be the preset first fresh air volume; the preset first fresh air volume>the preset second fresh air volume.

[0069] When the temperature difference between indoors and outdoors is large, introducing outdoor air into the room will reduce indoor comfort. The preset temperature difference is used to determine whether the temperature difference between indoors and outdoors is large, and can be set to 8°C. If the temperature difference between indoors and outdoors is ≤8°C, it is considered that introducing outdoor air into the room will not affect indoor comfort. The fresh air device can operate at a larger preset first fresh air volume to allow more outdoor air to circulate into the room. At this time, the air purification rate is higher; if the indoor and outdoor temperatures are greater than 8°C, it is considered that introducing too much outdoor air will affect indoor comfort. The fresh air device operates at a smaller preset second fresh air volume to allow less outdoor air to circulate into the room. At this time, the air purification rate is lower. Optionally, the preset first fresh air volume can be set to 30m 3 / h, the preset second fresh air volume can be set to 0, that is, when the indoor and outdoor temperature is greater than 8℃, the fresh air device will not be turned on, and the air conditioner will operate in the air supply mode. The way to control the fresh air volume of the fresh air device includes adjusting the wind speed of the fresh air fan and the opening of the air valve.

[0070] Optionally, in order to improve the accuracy of control, multiple range intervals of indoor and outdoor temperature difference can be set, each range interval corresponds to the fresh air volume of the fresh air device, and the larger the range interval, the smaller the fresh air volume, that is, the greater the temperature difference between indoor and outdoor, the smaller the fresh air volume.

[0071] Optionally, the fresh air volume of the fresh air device can also be controlled according to the outdoor carbon dioxide concentration. The greater the outdoor carbon dioxide concentration, the smaller the fresh air volume of the fresh air device. For example, when the outdoor carbon dioxide concentration is ≤ a preset concentration, the fresh air volume of the fresh air device is a larger first fresh air volume; when the outdoor carbon dioxide concentration is > the preset concentration, the fresh air volume of the fresh air device is a smaller second fresh air volume.

[0072] In some embodiments, the control unit 104 controls the oxygen production amount of the oxygen generator according to the indoor oxygen concentration, including: recording the difference between the indoor oxygen concentration and the preset oxygen concentration threshold as the oxygen concentration difference, and judging the size relationship between the oxygen concentration difference and the preset oxygen concentration difference; if the oxygen concentration difference is less than the preset oxygen concentration difference, controlling the oxygen production amount of the oxygen generator to be a preset first oxygen production amount; if the oxygen concentration difference is greater than or equal to the preset oxygen concentration difference, controlling the oxygen production amount of the oxygen generator to be a preset second oxygen production amount; the preset first oxygen production amount < the preset second oxygen production amount.

[0073] The higher the indoor carbon dioxide concentration is, the lower the oxygen concentration in the air is. Therefore, after the oxygen generator is turned on, the oxygen production of the oxygen generator is controlled according to the size of the indoor oxygen concentration. The preset oxygen concentration threshold is the target value of the indoor oxygen concentration, which can be set by the user. The preset oxygen concentration difference is used to determine whether the indoor oxygen concentration is close to the oxygen concentration threshold, which can be set to 1000ppm. When the oxygen concentration difference is <1000ppm, it is considered that the indoor oxygen concentration is relatively high. At this time, oxygen can be supplied according to the smaller preset first oxygen production amount; when the oxygen concentration difference is ≥1000ppm, it is considered that the indoor oxygen concentration is relatively low. At this time, oxygen is supplied according to the larger preset second oxygen production amount. The first oxygen supply can be set to 0.05m 3 / h, the second oxygen supply can be set to 0.2m 3 / h.

[0074] Optionally, in order to improve the accuracy of control, multiple range intervals of oxygen concentration difference can be set, each range interval corresponds to the oxygen production capacity of the oxygen generator, and the larger the range interval, the greater the oxygen production capacity, that is, the lower the indoor oxygen concentration, the greater the oxygen production capacity.

[0075] Optionally, during the process of purifying the indoor air, the fresh air device and the oxygen generator are controlled to stop running according to the running time, so as to avoid the fresh air device and the oxygen generator stopping running for too long and affecting the service life. For example, the fresh air device and the oxygen generator stop running after the running time reaches a preset time.

[0076] Optionally, during the process of purifying the indoor air, the fresh air device and the oxygen generator can be controlled to stop running according to the indoor carbon dioxide concentration to ensure a high indoor air quality. For example, when the indoor carbon dioxide concentration is ≤500ppm, the fresh air device and the oxygen generator stop running.

[0077] Optionally, during the process of purifying the indoor air, the fresh air device and the oxygen generator can be controlled to stop running according to the indoor oxygen concentration to ensure better indoor air freshness. For example, when the indoor oxygen concentration reaches an oxygen concentration threshold, the fresh air device and the oxygen generator stop running.

[0078] Figure 3 FIG. 1 is a flow chart of another embodiment of the air conditioner control method of the present invention. Figure 3 As shown, the method includes:

[0079] Step 1: During the operation of the air conditioner, detect the indoor CO2 concentration. When the CO2 concentration is ≤500ppm and the indoor temperature reaches the set temperature, the air conditioner turns on the air supply mode. At this time, the air conditioner circulates the indoor air, does not introduce outdoor fresh air, and does not produce oxygen; if 500ppm<CO2 concentration≤1000ppm, execute step 2; if CO2 concentration>1000ppm, execute step 3.

[0080] Step 2, turn on the fresh air device, detect the indoor and outdoor temperatures, determine the indoor and outdoor temperature difference ΔT, and judge whether ΔT<threshold T. If ΔT<T, the fresh air device operates in fresh air mode 1; if ΔT≥T, the fresh air device operates in fresh air mode 2. Among them, the fresh air volume of fresh air mode 1 is greater than the fresh air volume of fresh air mode 2.

[0081] Step 3, turn on the oxygen generator, detect the indoor oxygen concentration, determine the difference ΔC between the indoor oxygen concentration and the set oxygen concentration, and judge whether ΔC < threshold C. If ΔC < C, the oxygen generator operates in oxygen production mode 1; if ΔC ≥ C, the oxygen generator operates in oxygen production mode 2. Among them, the oxygen production amount of oxygen production mode 1 is less than the oxygen production amount of oxygen production mode 2.

[0082] 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.

[0083] According to the technical solution of the present invention, the air conditioner includes a fresh air device and an oxygen generator; when the air conditioner is running, the fresh air device and the oxygen generator are controlled to be turned on respectively according to the indoor carbon dioxide concentration; after the fresh air device is turned on, the fresh air volume of the fresh air device is controlled according to the indoor and outdoor temperatures; after the oxygen generator is turned on, the oxygen production of the oxygen generator is controlled according to the indoor oxygen concentration. Thus, by utilizing the synergistic effect of the fresh air device and the oxygen generator, the indoor air quality can be maintained even when the outdoor air is poor, and at the same time, the fresh air volume of the fresh air device and the oxygen production of the oxygen generator are reasonably controlled, thereby improving the air purification efficiency and reducing the energy consumption of the air conditioner.

[0084] 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.

[0085] 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.

[0086] According to the technical solution of the present invention, the air conditioner includes a fresh air device and an oxygen generator; when the air conditioner is running, the fresh air device and the oxygen generator are controlled to be turned on respectively according to the indoor carbon dioxide concentration; after the fresh air device is turned on, the fresh air volume of the fresh air device is controlled according to the indoor and outdoor temperatures; after the oxygen generator is turned on, the oxygen production of the oxygen generator is controlled according to the indoor oxygen concentration. Thus, by utilizing the synergistic effect of the fresh air device and the oxygen generator, the indoor air quality can be maintained even when the outdoor air is poor, and at the same time, the fresh air volume of the fresh air device and the oxygen production of the oxygen generator are reasonably controlled, thereby improving the air purification efficiency and reducing the energy consumption of the air conditioner.

[0087] 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.

[0088] 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.

[0089] According to the technical solution of the present invention, the air conditioner includes a fresh air device and an oxygen generator; when the air conditioner is running, the fresh air device and the oxygen generator are controlled to be turned on respectively according to the indoor carbon dioxide concentration; after the fresh air device is turned on, the fresh air volume of the fresh air device is controlled according to the indoor and outdoor temperatures; after the oxygen generator is turned on, the oxygen production of the oxygen generator is controlled according to the indoor oxygen concentration. Thus, by utilizing the synergistic effect of the fresh air device and the oxygen generator, the indoor air quality can be maintained even when the outdoor air is poor, and at the same time, the fresh air volume of the fresh air device and the oxygen production of the oxygen generator are reasonably controlled, thereby improving the air purification efficiency and reducing the energy consumption of the air conditioner.

[0090] 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.

[0091] 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.

[0092] According to the technical solution of the present invention, the air conditioner includes a fresh air device and an oxygen generator; when the air conditioner is running, the fresh air device and the oxygen generator are controlled to be turned on respectively according to the indoor carbon dioxide concentration; after the fresh air device is turned on, the fresh air volume of the fresh air device is controlled according to the indoor and outdoor temperatures; after the oxygen generator is turned on, the oxygen production of the oxygen generator is controlled according to the indoor oxygen concentration. Thus, by utilizing the synergistic effect of the fresh air device and the oxygen generator, the indoor air quality can be maintained even when the outdoor air is poor, and at the same time, the fresh air volume of the fresh air device and the oxygen production of the oxygen generator are reasonably controlled, thereby improving the air purification efficiency and reducing the energy consumption of the air conditioner.

[0093] 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.

[0094] 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 device and an oxygen generator; the fresh air device is used to introduce outdoor air into the room; The oxygen generator is used to supply oxygen indoors; The method comprises: During the operation of the air conditioner, obtaining indoor carbon dioxide concentration and oxygen concentration, indoor temperature, and outdoor temperature; According to the carbon dioxide concentration, the fresh air device and the oxygen generator are respectively controlled to be turned on; After the fresh air device is turned on, the fresh air volume of the fresh air device is controlled according to the indoor temperature and the outdoor temperature; after the oxygen generator is turned on, the oxygen production volume of the oxygen generator is controlled according to the indoor oxygen concentration.

2. The air conditioner control method according to claim 1, characterized in that: According to the carbon dioxide concentration, the fresh air device and the oxygen generator are respectively controlled to be turned on, including: Determining the range of the carbon dioxide concentration, including a first range, a second range, and a third range; the first range < the second range < the third range; If the carbon dioxide concentration is within the first range, the fresh air device and the oxygen generator are not turned on; If the carbon dioxide concentration is within the second range, turning on the fresh air device; If the carbon dioxide concentration is within the third range, the fresh air device and the oxygen generator are turned on.

3. The air conditioner control method according to claim 2, characterized in that: Also includes: If the carbon dioxide concentration is within a first range, the air conditioner is controlled to operate in a preset air supply mode.

4. The air conditioner control method according to claim 1 or 2, characterized in that: Controlling the fresh air volume of the fresh air device according to the indoor temperature and the outdoor temperature includes: Recording the difference between the indoor temperature and the outdoor temperature as the indoor-outdoor temperature difference, and determining the magnitude relationship between the indoor-outdoor temperature difference and a preset temperature difference; If the indoor and outdoor temperature difference is less than or equal to the preset temperature difference, the fresh air volume of the fresh air device is controlled to be a preset first fresh air volume; If the indoor and outdoor temperature difference is greater than the preset temperature difference, the fresh air volume of the fresh air device is controlled to be a preset first fresh air volume; the preset first fresh air volume>the preset second fresh air volume.

5. The air conditioner control method according to claim 1 or 2, characterized in that: Controlling the oxygen production amount of the oxygen production device according to the indoor oxygen concentration includes: Recording the difference between the indoor oxygen concentration and the preset oxygen concentration threshold as the oxygen concentration difference, and determining the magnitude relationship between the oxygen concentration difference and the preset oxygen concentration difference; If the oxygen concentration difference is less than the preset oxygen concentration difference, the oxygen production amount of the oxygen production device is controlled to be a preset first oxygen production amount; If the oxygen concentration difference is greater than or equal to the preset oxygen concentration difference, the oxygen production amount of the oxygen production device is controlled to be a preset second oxygen production amount; the preset first oxygen production amount is less than the preset second oxygen production amount.

6. A control device for an air conditioner, characterized in that: The air conditioner comprises a fresh air device and an oxygen generator; the fresh air device is used to introduce outdoor air into the room; The oxygen generator is used to supply oxygen indoors; The control device comprises: An acquisition unit is configured to acquire indoor carbon dioxide concentration and oxygen concentration, indoor temperature, and outdoor temperature during operation of the air conditioner; A control unit, configured to control the fresh air device and the oxygen generator to be turned on respectively according to the carbon dioxide concentration; The control unit is further configured to control the fresh air volume of the fresh air device according to the indoor temperature and the outdoor temperature after the fresh air device is turned on; and to control the oxygen production volume of the oxygen production device according to the indoor oxygen concentration after the oxygen production device is turned on.

7. The air conditioner control device according to claim 6, characterized in that: The control unit controls the fresh air device and the oxygen generator to be turned on respectively according to the carbon dioxide concentration, including: Determining the range of the carbon dioxide concentration, including a first range, a second range, and a third range; the first range < the second range < the third range; If the carbon dioxide concentration is within the first range, the fresh air device and the oxygen generator are not turned on; If the carbon dioxide concentration is within the second range, turning on the fresh air device; If the carbon dioxide concentration is within the third range, the fresh air device and the oxygen generator are turned on.

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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