CN113719979A - Oxygen-enriched air conditioner and control method for oxygen-enriched air conditioner - Google Patents

Oxygen-enriched air conditioner and control method for oxygen-enriched air conditioner Download PDF

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Publication number
CN113719979A
CN113719979A CN202010449300.3A CN202010449300A CN113719979A CN 113719979 A CN113719979 A CN 113719979A CN 202010449300 A CN202010449300 A CN 202010449300A CN 113719979 A CN113719979 A CN 113719979A
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China
Prior art keywords
oxygen
concentration
indoor
voc
preset
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CN202010449300.3A
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CN113719979B (en
Inventor
徐贝贝
高保华
刘聚科
李相军
刘运涛
曹壬艳
董金盛
史为品
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Priority to CN202010449300.3A priority Critical patent/CN113719979B/en
Priority to PCT/CN2021/090708 priority patent/WO2021219037A1/en
Publication of CN113719979A publication Critical patent/CN113719979A/en
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Publication of CN113719979B publication Critical patent/CN113719979B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/66—Volatile organic compounds [VOC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/76—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F24F2120/14—Activity of occupants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides an oxygen-enriched air conditioner and a control method for the same, wherein the oxygen-enriched air conditioner comprises the following components: outdoor unit and indoor unit. An oxygen generation module for providing oxygen is arranged in the outdoor unit, and a VOC detection module for detecting the VOC concentration in indoor air and an activity state detection device for detecting the activity state of indoor personnel are arranged in the indoor unit; the control method comprises the following steps: acquiring the activity state detected by the activity state detection device; obtaining the VOC concentration detected by the VOC detection module; and controlling the oxygen generation module to operate according to the corresponding preset operation mode according to the VOC concentration and the activity state of indoor personnel. Based on the scheme provided by the invention, after the VOC concentration in the indoor air is detected by the VOC detection module, the oxygen generation module is controlled to operate according to the corresponding preset operation mode according to the VOC concentration and the activity state, so that the cost of the oxygen-enriched air conditioner can be reduced, and the indoor VOC concentration can be rapidly reduced to enable the oxygen content of the indoor air to rapidly reach the optimal oxygen content.

Description

Oxygen-enriched air conditioner and control method for oxygen-enriched air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an oxygen-enriched air conditioner and a control method for the oxygen-enriched air conditioner.
Background
Along with the air pollution is more and more serious, haze weather is more and more, and more people do not like windowing. In order to avoid that the oxygen content in the indoor air can not meet the requirement of human body after the air conditioner runs for a long time. Oxygen-enriched air conditioners have appeared in the related art, which can deliver oxygen in outdoor air to indoor air to improve indoor air conditions.
The oxygen-enriched air conditioner of the prior art generally detects the oxygen content in the indoor air through an oxygen sensor to control the opening of an oxygen generation module. When a small amount of pollutants exist in the air and the change of the oxygen concentration is not large, the oxygen sensor is required to have very high detection precision to detect the change of the oxygen in the indoor air, and the high-precision oxygen sensor is usually expensive and short in service life, so that the cost of the oxygen-enriched air conditioner is high. .
Disclosure of Invention
An object of the first aspect of the present invention is to overcome at least one technical drawback of the prior art and to provide a control method for an oxygen-enriched air conditioner.
It is a further object of the first aspect of the invention to reduce the cost of oxygen-enriched air conditioning.
It is a further object of the first aspect of the present invention to rapidly reduce the VOC concentration in the room to rapidly achieve an optimum level of oxygen in the indoor air.
It is a still further object of the first aspect of the invention to avoid as much as possible the noise of the oxygen generation module while it is operating disturbing the rest of the user.
It is an object of the second aspect of the present invention to provide an oxygen-enriched air conditioner.
In particular, the present invention provides a control method for an oxygen-enriched air conditioner including:
an outdoor unit in which an oxygen generation module for providing oxygen is provided, and
the indoor unit is internally provided with a VOC detection module for detecting the VOC concentration in indoor air and an activity state detection device for detecting the activity state of indoor personnel;
the control method comprises the following steps:
acquiring the activity state of the indoor personnel detected by the activity state detection device;
acquiring the VOC concentration in the indoor air detected by the VOC detection module;
and controlling the oxygen generation module to operate according to a corresponding preset operation mode according to the VOC concentration and the activity state of the indoor personnel.
Optionally, the activity state detection device includes a camera;
the acquiring of the activity state of the indoor person detected by the activity state detection device includes:
acquiring an indoor current image acquired by the camera;
and identifying the current image to acquire the posture information of the indoor person so as to determine the activity state of the indoor person, wherein the activity state comprises a sleep state and a non-sleep state.
Optionally, the controlling the oxygen generation module to operate according to a corresponding preset operation mode according to the VOC concentration and the activity state of indoor personnel includes:
judging whether all the indoor personnel are in a sleeping state;
if all the indoor personnel are in a sleeping state, judging whether the VOC concentration reaches a preset VOC concentration threshold value;
if the VOC concentration reaches the preset VOC concentration threshold value, the oxygen generation module is started to release oxygen with preset oxygen concentration.
Optionally, if the indoor personnel are in a non-sleep state, determining the oxygen concentration corresponding to the VOC concentration according to a preset VOC concentration and oxygen concentration relation mapping table;
identifying the current image to obtain face information so as to determine the current number of people in the room and the age estimation value of each person;
judging whether the age estimation values exceed a preset age threshold or not;
if the age estimation value exceeding the preset age threshold value exists in the age estimation value, the oxygen concentration of a preset percentage is increased on the basis of the oxygen concentration to serve as a first target oxygen concentration, and the oxygen generation module is started to release oxygen of the first target oxygen concentration.
Optionally, the method further comprises: judging whether the current number of people exceeds a preset number of people threshold value;
if the current number of people exceeds the preset number of people threshold, increasing the oxygen concentration of a preset percentage on the basis of the first target oxygen concentration to serve as a second target oxygen concentration, and enabling the oxygen generation module to release oxygen of the second target oxygen concentration.
Optionally, the greater the VOC concentration, the greater the corresponding oxygen concentration.
Optionally, the activity state detection device comprises an infrared detection device;
the acquiring of the activity state of the indoor person detected by the activity state detection device includes:
the infrared detection device is used for detecting whether the movement of the indoor personnel changes within a set time length so as to determine the activity state of the indoor personnel, wherein the activity state comprises a sleep state and a non-sleep state.
Optionally, the controlling the oxygen generation module to operate according to a corresponding preset operation mode according to the VOC concentration and the activity state of the indoor personnel includes:
judging whether all the indoor personnel are in a sleeping state;
if all the indoor personnel are in a sleeping state, judging whether the VOC concentration reaches a preset VOC concentration threshold value;
if the VOC concentration reaches the preset VOC concentration threshold value, the oxygen generation module is started to release oxygen with preset oxygen concentration.
Optionally, if the indoor personnel are in a non-sleep state, determining the oxygen concentration corresponding to the VOC concentration according to a preset VOC concentration and oxygen concentration relation mapping table;
acquiring the current number of people in the room detected by the infrared detection device;
judging whether the current number of people exceeds a preset number of people threshold value;
if the current number of people exceeds the preset number of people threshold, increasing the oxygen concentration of a preset percentage on the basis of the oxygen concentration to serve as a first target oxygen concentration, and enabling the oxygen generation module to release oxygen of the first target oxygen concentration.
According to another aspect of the present invention, there is also provided an oxygen-enriched air conditioner including:
an outdoor unit in which an oxygen generation module for providing oxygen is provided, and
the indoor unit is internally provided with a VOC detection module for detecting the VOC concentration of indoor air and an activity state detection device for detecting the activity state of indoor personnel;
a controller comprising a memory and a processor, the memory having stored therein a machine executable program, the machine executable program when executed by the processor being for implementing the control method of any one of the preceding claims.
Compared with an oxygen sensor, the oxygen-enriched air conditioner has the advantages that the VOC detection module directly detects the VOC concentration in the indoor air so as to control the operation mode of the oxygen generation module, so that the requirement on the detection precision of the VOC detection module is low, and the cost of the oxygen-enriched air conditioner is reduced.
Furthermore, the oxygen generation module is controlled to operate according to the corresponding preset operation mode according to the VOC concentration and the activity state of indoor personnel, so that the indoor VOC concentration can be quickly reduced, and the oxygen content of indoor air can quickly reach the optimal oxygen content.
Furthermore, the oxygen generation module can be controlled to be started and release oxygen with preset oxygen concentration under the condition that indoor personnel are in a sleeping state and the VOC concentration reaches the preset VOC concentration threshold value. The preset VOC concentration threshold value is a very high value, and the preset oxygen concentration is a very small value, so that the user can be prevented from disturbing rest while the indoor VOC concentration is reduced.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view illustrating an outdoor unit of an oxygen-enriched air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural view showing an indoor unit of an oxygen-enriched air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic structural view illustrating an indoor unit of an oxygen-enriched air conditioner according to an embodiment of the present invention;
FIG. 4 is a block diagram illustrating the structure of an oxygen-enriched air conditioner according to an embodiment of the present invention;
fig. 5 is a schematic structural view showing an indoor unit of an oxygen-enriched air conditioner according to another embodiment of the present invention;
FIG. 6 is a block diagram illustrating the construction of an oxygen-enriched air conditioner according to another embodiment of the present invention;
FIG. 7 is a flow chart illustrating a control method for an oxygen-enriched air conditioner according to an embodiment of the present invention;
FIG. 8 is a flow chart illustrating a control method for an oxygen-enriched air conditioner according to an embodiment of the present invention;
fig. 9 shows a flow chart of a control method for an oxygen-enriched air conditioner according to another embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be noted that the technical features of the embodiments and the preferred embodiments of the present invention can be combined with each other without conflict.
Fig. 1 is a schematic structural view illustrating an outdoor unit of an oxygen-enriched air conditioner according to an embodiment of the present invention; fig. 2 shows a first schematic block diagram of an indoor unit of an oxygen-enriched air conditioner according to an embodiment of the present invention, and fig. 2 shows a front view of the indoor unit; fig. 3 shows a second schematic block diagram of an indoor unit of an oxygen-enriched air conditioner according to an embodiment of the present invention, and fig. 3 shows a plan view of the indoor unit; fig. 4 shows a block diagram of an oxygen-enriched air conditioner according to an embodiment of the present invention. Referring to fig. 1-4, the oxygen-enriched air conditioner 100 may include an outdoor unit 110, an indoor unit 120, and a controller 160. The outdoor unit 110 is provided therein with an oxygen generation module 170 and an oxygen inlet 111. The oxygen generation module 170 may be in communication with the oxygen inlet 111 through a pipe, so as to take outdoor air from the oxygen inlet 111 and extract oxygen therein. The indoor unit 120 is internally provided with a VOC detection module 130 and an oxygen delivery port 121, and the oxygen delivery port 121 can be connected with the oxygen generation module 170 through a pipeline, so that oxygen extracted by the oxygen generation module 170 can be delivered indoors through the oxygen delivery port 121; the controller 160 includes a memory 161 and a processor 162, the memory 161 stores a machine executable program 1611, and the machine executable program 1611 is executed by the processor 162 to implement a control method for an oxygen-enriched air conditioner according to any one of the following embodiments.
In some embodiments of the present invention, referring to fig. 3-4, the activity status detection device may be a camera, and the processor 162 may identify and acquire the posture information of the indoor person through the current image of the indoor collected by the camera 140, so as to determine the activity status of the indoor person, where the activity status includes a sleep status and a non-sleep status. In addition, the processor 162 may also identify and obtain face information of people in the room by identifying the current image, so as to determine the current number of people in the room and the age estimation of each person.
Fig. 5 is a schematic structural view showing an indoor unit of an oxygen-enriched air conditioner according to another embodiment of the present invention; fig. 6 shows a block diagram of an oxygen-enriched air conditioner according to another embodiment of the present invention. Referring to fig. 5 to 6, in some embodiments of the present invention, the activity status detection device may be an infrared detection device 150, and the processor 162 may detect whether the action of the indoor person changes within a set time period through the infrared detection device 150, so as to obtain the activity status of the indoor person.
Fig. 7 shows a flow chart of a control method for an oxygen-enriched air conditioner according to an embodiment of the invention. As shown in fig. 7, the control method for the oxygen-enriched air conditioner of the present invention executed by the controller of the above-described embodiment may include at least the following steps:
s102: and acquiring the activity state of the indoor personnel detected by the activity state detection device.
S104: and acquiring the VOC concentration in the indoor air detected by the VOC detection module.
S106: and controlling the oxygen generation module to operate according to the corresponding preset operation mode according to the VOC concentration and the activity state of indoor personnel.
In the embodiment of the invention, the processor 162 directly detects the VOC concentration in the indoor air through the VOC detection module to further control the operation mode of the oxygen generation module, so that the cost of the oxygen-enriched air conditioner is reduced. In addition, the processor 162 can control the oxygen generation module to operate according to the corresponding preset operation mode according to the VOC concentration and the activity state after acquiring the activity state and the VOC concentration of indoor personnel, so that the indoor VOC concentration can be quickly reduced, the oxygen content of indoor air can quickly reach the optimal oxygen content, and the user experience is improved.
In some embodiments of the present invention, referring to fig. 1-4, for the case where the activity detection device is the camera 140, the processor 162 may be configured to acquire a current image of the room collected by the camera 140, identify the current image, and acquire posture information of the indoor person, so as to determine the activity state of the indoor person, where the activity state includes a sleep state and a non-sleep state.
After determining the active state, the processor 162 may determine whether the indoor personnel are all in the sleep state, and if the indoor personnel are all in the sleep state, the processor 162 may determine whether the VOC concentration reaches the preset VOC concentration threshold, and if the VOC concentration reaches the preset VOC concentration threshold, the oxygen generation module 170 is controlled to release the oxygen with the preset oxygen concentration.
Wherein the predetermined VOC concentration threshold corresponds to a large value, such as 10.0mg/m3The VOC concentration exceeds the preset VOC concentration threshold value to indicate that the indoor air quality is poor, at the moment, in order to reduce the indoor VOC concentration, the processor 162 can control the oxygen generation module 170 to be opened and release oxygen with the preset oxygen concentration, the preset oxygen concentration is a small value, for example, the oxygen concentration is 20%, so that the indoor VOC concentration can be reduced, and the noise generated when the oxygen generation module 170 works can be avoided as much as possible to influence the rest of a user.
In some embodiments of the present invention, if there is a person in the room in a non-sleep state, the processor 162 determines the oxygen concentration corresponding to the VOC concentration in the room according to the preset VOC concentration-oxygen concentration relation map.
TABLE 1 VOC concentration and oxygen concentration mapping table
VOC concentration (mg/m)3) Oxygen concentration
0.3-1.0 0
1.0-3.0 40％
3.0-10.0 60％
>10.0 90％
Specifically, referring to Table 1, the VOC concentration was between 0.3mg/m3-1.0mg/m3In time, it indicates that the indoor air quality is good, the oxygen generation module 170 does not need to be started, and the corresponding oxygen concentration is 0; the VOC concentration is between 1.0mg/m3-3.0mg/m3When the air quality in the room is normal, the oxygen concentration of the oxygen to be released by the corresponding oxygen generation module 170 is 40%; the VOC concentration is between 3.0mg/m3-10.0mg/m3When the air quality is poor, the oxygen concentration of the oxygen to be released by the corresponding oxygen generation module 170 is 60%; VOC concentration>10.0mg/m3When the air quality in the room is poor, the oxygen concentration of the oxygen to be released by the corresponding oxygen generation module 170 is 90%.
Wherein, the bigger the VOC concentration is, the bigger the corresponding oxygen concentration is, so that the indoor VOC concentration can be rapidly reduced after the oxygen generation module 170 is opened.
After determining the oxygen concentration corresponding to the VOC concentration according to table 1, in some embodiments of the present invention, the processor 162 identifies the current image to obtain face information to determine the current number of people in the room and an age estimate for each person. The face information may include a face contour, a face feature point, various geometric proportion data (such as a distance between two eyes), and the like. The current number of people in the room and the age estimation of each person can be determined by analyzing the face information.
Then, the processor 162 determines whether there is an age estimation value exceeding a preset age threshold in the age estimation values, where the preset age threshold may be 60, 70, 80, and the like, and may be set according to actual situations, which is not limited in the present invention. If there is an age estimate that exceeds the predetermined age threshold in the age estimates, the processor 162 increases the oxygen concentration by a predetermined percentage based on the determined oxygen concentration according to table 1 to serve as the first target oxygen concentration, and then starts the oxygen generation module 170 to release oxygen at the first target oxygen concentration. The preset percentage may be 20%, and may be specifically set according to actual conditions.
For example, the predetermined age threshold is 70 and the predetermined percentage is 20%. If it is determined according to table 1 that the VOC concentration corresponds to an oxygen concentration of 0 and there are people over 70 years old in the room, the oxygen generation module 170 is turned on and releases oxygen with an oxygen concentration of 20%; if it is determined according to table 1 that the VOC concentration corresponds to an oxygen concentration of 40% and there are people over 70 years old in the room, the oxygen generation module 170 is turned on and releases oxygen with an oxygen concentration of 60%; if it is determined from table 1 that the VOC concentration corresponds to an oxygen concentration of 90% and there are people over 70 years old in the room, the oxygen generation module 170 is turned on and is caused to release oxygen at 100% oxygen concentration. In the case where the oxygen concentration is 90% according to the VOC concentration, since the highest oxygen concentration is 100%, the oxygen generation module 170 is controlled to release oxygen having an oxygen concentration of 100%.
Under the condition that the indoor personnel are in the non-sleep state, the oxygen concentration of the oxygen to be released by the oxygen generation module 170 is controlled by integrating the VOC concentration and the age of the indoor personnel, so that the indoor VOC concentration can be quickly reduced, and the oxygen content of the indoor air can quickly reach the optimal oxygen content.
After the processor 162 determines whether there is an age estimate in the age estimates that exceeds the preset age threshold, in some embodiments of the invention, the processor 162 may also determine whether the current number of people in the room exceeds a preset number of people threshold. The preset number threshold may be one or more, which is not limited in the present invention. If the processor 162 determines that the current number of people in the room exceeds the predetermined threshold number of people, the processor 162 increases the predetermined percentage of oxygen concentration as the second target oxygen concentration on the basis of the first target oxygen concentration, so that the oxygen generation module 170 releases the oxygen with the second target oxygen concentration.
For example, the predetermined age threshold is 70, the predetermined number of people threshold is 1, and the predetermined percentage is 20%. If it is determined according to table 1 that the VOC concentration corresponds to an oxygen concentration of 0 and more than 1 person is present in the room and more than 70 years old, then the oxygen generation module 170 is caused to release oxygen with an oxygen concentration of 40%; if it is determined according to table 1 that the VOC concentration corresponds to an oxygen concentration of 40% and more than 1 person is present in the room, and more than 70 years old, then the oxygen generation module 170 is enabled to release oxygen with an oxygen concentration of 80%; if it is determined from table 1 that the VOC concentration corresponds to an oxygen concentration of 90% and more than 1 person is present in the room, and there are people over 70 years old, then the oxygen generation module 170 is caused to release oxygen with an oxygen concentration of 100%. Wherein, in case that the oxygen concentration corresponding to the VOC concentration is 90% according to the determination of table 1, since the highest oxygen concentration is 100%, the oxygen generation module 170 is controlled to release oxygen with the oxygen concentration of 100%.
Under the condition that people exist in the room in a non-sleep state, the oxygen concentration of the oxygen to be released by the oxygen generation module 170 is further controlled by integrating the VOC concentration, the age of the people in the room and the current number of people in the room, so that the indoor VOC concentration can be quickly reduced, and the oxygen content of the indoor air can quickly reach the optimal oxygen content.
In some embodiments of the present invention, referring to fig. 1-2, 5-6, for the case that the activity status detection device is the infrared detection device 150, the processor 162 may be configured to obtain the activity status of the indoor person by detecting whether the action of the indoor person changes within a set time period through the infrared detection device 150. Specifically, if it is detected that the movement of the indoor personnel is unchanged within a preset time period, the indoor personnel are in a sleeping state; if the indoor personnel are detected to change in action within the preset time, the indoor personnel are in a non-sleep state.
Afterwards, whether indoor personnel all are in the sleep state can be judged to treater 162, if indoor personnel all are in the sleep state, then judge whether VOC concentration reaches and predetermines VOC concentration threshold value, if VOC concentration reaches and predetermines VOC concentration threshold value, treater 162 then controls system oxygen module 170 and opens and release the oxygen of predetermineeing oxygen concentration.
Wherein the predetermined VOC concentration threshold corresponds to a large value, such as 10.0mg/m3The VOC concentration exceeds the preset VOC concentration threshold value to indicate that the indoor air quality is poor, at the moment, in order to reduce the indoor VOC concentration, the processor 162 can control the oxygen generation module 170 to be opened and release oxygen with the preset oxygen concentration, the preset oxygen concentration is a small value, for example, the oxygen concentration is 20%, so that the indoor VOC concentration can be reduced, and the noise generated when the oxygen generation module 170 works can be avoided as much as possible to influence the rest of a user.
If the processor 162 determines that the indoor people are in the non-sleep state according to the activity state, the processor 162 obtains the current number of people in the room detected by the infrared detection device 150 after determining the oxygen concentration corresponding to the VOC concentration according to table 1, determines whether the current number of people exceeds a preset number of people threshold, if the current number of people exceeds the preset number of people threshold, the processor 162 increases the oxygen concentration of a preset percentage on the basis of the oxygen concentration determined according to table 1 to serve as the first target oxygen concentration, and starts the oxygen generation module to release the oxygen of the first target oxygen concentration.
For example, the predetermined threshold number of people is 1 and the predetermined percentage is 20%. If the oxygen concentration corresponding to the VOC concentration is 0 and more than 1 person exists in the room according to the table 1, the oxygen generation module 170 is started and releases oxygen with the oxygen concentration of 20%; if the oxygen concentration corresponding to the VOC concentration is 40% and more than 1 person exists in the room according to the table 1, the oxygen generation module 170 is started and releases oxygen with the oxygen concentration of 60%; if it is determined according to table 1 that the VOC concentration corresponds to an oxygen concentration of 90% and more than 1 person is present in the room, the oxygen generation module 170 is turned on and releases oxygen with an oxygen concentration of 100%. In the case where it is determined according to table 1 that the VOC concentration corresponds to an oxygen concentration of 90%, since the highest oxygen concentration is 100%, the oxygen generation module 170 is controlled to release oxygen having an oxygen concentration of 100%.
Under the condition that the indoor unit is provided with the infrared detection device 150 and people in the room are in a non-sleep state, the oxygen concentration of the oxygen released by the oxygen generation module 170 is controlled by integrating the VOC concentration and the current number of people in the room, so that the indoor VOC concentration can be quickly reduced, and the oxygen content of the indoor air can quickly reach the optimal oxygen content.
After the oxygen generation module 170 is turned on, in some embodiments of the invention, the processor 162 may be further configured to periodically acquire the indoor VOC concentration detected by the VOC detection module 130 for a first preset period of time and transmit the current VOC concentration and air quality condition in the room through the smart device. The first preset time period may be 1 hour or more, which is not specifically limited in the present invention. Smart devices may include smart speakers, smart phones, personal digital assistants, and the like. If the intelligent sound box is included, the current VOC concentration and the air quality condition can be broadcasted through the intelligent sound box; if the smart phone is included, the current VOC concentration and gas quality condition can be displayed through the APP on the smart phone. Thereby facilitating the user to better sense the VOC concentration change in the room. If the VOC concentration is detected to be reduced to the preset threshold value within the first preset time, the oxygen generation module is closed, and the indoor current VOC concentration and the indoor air quality condition are sent through the intelligent equipment, so that the oxygen content of indoor air can be accurately controlled, and a user can timely acquire the indoor air condition.
And if after first predetermineeing for a long time, indoor VOC concentration still is higher than the predetermined threshold value, then explain probably that oxygen generation module has broken down, close oxygen generation module this moment and send indoor current VOC concentration and air quality situation through smart machine to remind the user.
In some embodiments of the present invention, after the oxygen generation module is started, if the VOC concentration detected by the VOC detection module is not obtained within the second preset time period, the second preset time period is shorter than the first preset time period. It indicates that the VOC detection module may have a fault, and the processor 162 turns off the oxygen generation module 170 after the turn-on time of the oxygen generation module reaches the first preset time and sends a fault alarm to the intelligent device for prompting, so that the indoor VOC concentration can be effectively reduced and the user can know the fault condition in time.
Additionally, in some embodiments of the present invention, the processor 162 can also be configured to receive instructions sent by the smart device regarding the on-time of the oxygen generation module 170 and, upon reaching the on-time, send the current VOC concentration and air quality conditions within the room via the smart device.
Fig. 8 shows a flow chart of a control method for an oxygen-enriched air conditioner according to an embodiment of the invention. As shown in fig. 8, in an embodiment of the present invention, for the case that the activity status detecting device is a camera, the control method for the oxygen-enriched air conditioner may include the following steps:
s1: acquiring the VOC concentration in the indoor air detected by the VOC detection module 130 and the activity state of indoor personnel detected by the camera 140; specifically, acquiring the activity state of the indoor person detected by the camera 140 includes: the method comprises the steps of acquiring indoor current images acquired by a camera, and identifying the current images to acquire posture information of indoor personnel so as to determine the activity states of the indoor personnel, wherein the activity states comprise a sleep state and a non-sleep state.
S2: and judging whether all the indoor personnel are in the sleep state, if so, executing step S3, and if not, executing step S6.
S3: and judging whether the VOC concentration reaches a preset VOC concentration threshold value, if so, executing step S4, and if not, executing step S5.
S4: the oxygen generation module 170 is started to release oxygen with a preset oxygen concentration, and is closed when the VOC concentration is reduced to a preset threshold, and the step S1 is returned; wherein the predetermined VOC concentration threshold corresponds to a large value, such as 10.0mg/m3When the VOC concentration exceeds the predetermined VOC concentration threshold, indicating poor indoor air quality, the processor 162 controls the oxygen generation module 170 to open and release the predetermined oxygen to reduce the indoor VOC concentrationOxygen of gas concentration, it is a very little value to predetermine oxygen concentration, for example 20% oxygen concentration, so not only can reduce indoor VOC concentration but also can avoid making oxygen module 170 noise that the during operation produced to influence the user and have a rest as far as possible.
S5: return is made to step S1.
S6: according to a preset VOC concentration and oxygen concentration relation mapping table, determining the oxygen concentration corresponding to the VOC concentration, and identifying the current image to obtain face information, thereby determining the current number of people indoors and the age estimation value of each person.
S7: judging whether the age estimation values exceed a preset age threshold value or not, and if not, executing step S8; if yes, go to step S11.
S8: if the age estimation values do not have the age estimation values exceeding the preset age threshold value, judging whether the current number of people in the room exceeds the preset number of people threshold value, and if not, executing the step S9; if yes, go to step S10.
S9: if the current number of people in the room does not exceed the preset number of people threshold, controlling the oxygen generation module 170 to release the oxygen with the oxygen concentration, closing the oxygen generation module when the VOC concentration is reduced to the preset threshold, and returning to the step S1; thereby rapidly reducing the VOC concentration in the room.
S10: if the current number of people in the room exceeds a preset number of people threshold, increasing the oxygen concentration with a preset percentage on the basis of the oxygen concentration to serve as a first target oxygen concentration and controlling the oxygen generation module 170 to release oxygen with the first target oxygen concentration, closing the oxygen generation module 170 when the VOC concentration is reduced to the preset threshold, and returning to the step S1; thereby rapidly reducing the VOC concentration in the room.
S11: increasing a preset percentage of oxygen concentration as a first target oxygen concentration on the basis of the oxygen concentration.
S12: judging whether the current number of people in the room exceeds a preset number of people threshold, if not, executing the step S13; if yes, go to step S14.
S13: controlling the oxygen generation module 170 to release oxygen of the first target oxygen concentration and closing the oxygen generation module when the VOC concentration decreases to the preset threshold, returning to step S1; thereby rapidly reducing the VOC concentration in the room.
S14: increasing the oxygen concentration with a preset percentage on the basis of the first target oxygen concentration to serve as a second target oxygen concentration, enabling the oxygen generation module 170 to release oxygen with the second target oxygen concentration, closing the oxygen generation module 170 when the VOC concentration is reduced to a preset threshold value, and returning to the step S1; thereby rapidly reducing the VOC concentration in the room.
Fig. 9 shows a flow chart of a control method for an oxygen-enriched air conditioner according to another embodiment of the present invention. As shown in fig. 9, in another embodiment of the present invention, for the case that the activity state detecting means is an infrared detecting means, the control method for the oxygen-enriched air conditioner may include the steps of:
s21: acquiring VOC concentration in indoor air detected by a VOC detection module and activity states of indoor personnel detected by an infrared detection device; specifically, acquiring the activity state of the indoor person detected by the infrared detection device includes: the infrared detection device is used for detecting whether the movement of the indoor personnel changes within a set time length so as to determine the activity state of the indoor personnel, wherein the activity state comprises a sleep state and a non-sleep state.
S22: judging whether all the indoor personnel are in a sleeping state; if so, go to step S23, otherwise, go to step S26.
S23: judging whether the VOC concentration reaches a preset VOC concentration threshold value, if so, executing step S24; if not, go to step 25.
S24: controlling the oxygen generation module 170 to release oxygen with a preset oxygen concentration and closing the oxygen generation module when the VOC concentration is reduced to a preset threshold, and returning to step S21; wherein the predetermined VOC concentration threshold corresponds to a large value, such as 10.0mg/m3The VOC concentration exceeds the preset VOC concentration threshold value to indicate that the indoor air quality is poor, at the moment, in order to reduce the indoor VOC concentration, the processor 162 can control the oxygen generation module 170 to be opened and release oxygen with the preset oxygen concentration, the preset oxygen concentration is a small value, for example, the oxygen concentration is 20%, so that the indoor VOC concentration can be reduced, and the noise generated when the oxygen generation module 170 works can be avoided as much as possible to influence the rest of a user.
S25: return is made to step S21.
S26: and determining the oxygen concentration corresponding to the VOC concentration according to a preset VOC concentration and oxygen concentration relation mapping table and acquiring the indoor current number of people detected by the infrared detection device.
S27: judging whether the current number of people in the room exceeds a preset number threshold, if not, executing a step 28; if yes, go to step S29.
S28: if the current number of people does not exceed the preset number of people threshold, controlling the oxygen of the oxygen concentration of the oxygen release module, closing the oxygen generation module when the VOC concentration is reduced to the preset threshold, and returning to the step S21; thereby rapidly reducing the VOC concentration in the room.
S29: if the current number of people exceeds a preset number of people threshold, increasing the oxygen concentration with a preset percentage on the basis of the oxygen concentration to serve as a first target oxygen concentration and controlling an oxygen generation module to release oxygen with the first target oxygen concentration, closing the oxygen generation module when the VOC concentration is reduced to the preset threshold, and returning to the step S21; thereby rapidly reducing the VOC concentration in the room.
The invention provides an oxygen-enriched air conditioner and a control method for the oxygen-enriched air conditioner. In addition, under the condition that indoor personnel are in a sleeping state and the VOC concentration reaches the preset VOC concentration threshold value, the oxygen generation module is controlled to be started and release oxygen with the preset oxygen concentration, so that the indoor VOC concentration is reduced, meanwhile, a user is not disturbed, and the user experience is improved; if the indoor people are in the non-sleep state, the oxygen concentration of the oxygen to be released by the oxygen generation module can be controlled by integrating the VOC concentration, the age of the indoor people and the current number of people, so that the oxygen content in the indoor air is rapidly improved, and the user experience is further improved.
In addition, the oxygen generation module can be closed when the concentration of the VOC in the room is reduced to the preset threshold value, so that the oxygen content of the indoor air can be accurately controlled.
In addition, after the oxygen generation module is closed, the indoor current VOC concentration and air quality condition can be sent to the intelligent equipment, so that a user can know the current VOC concentration and air quality condition in time, and the user experience is improved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A control method for an oxygen-enriched air conditioner, the oxygen-enriched air conditioner comprising:
an outdoor unit in which an oxygen generation module for providing oxygen is provided, and
the indoor unit is internally provided with a VOC detection module for detecting the VOC concentration in indoor air and an activity state detection device for detecting the activity state of indoor personnel;
the control method comprises the following steps:
acquiring the activity state of the indoor personnel detected by the activity state detection device;
acquiring the VOC concentration in the indoor air detected by the VOC detection module;
and controlling the oxygen generation module to operate according to a corresponding preset operation mode according to the VOC concentration and the activity state of the indoor personnel.
2. The control method according to claim 1,
the activity state detection device comprises a camera;
the acquiring of the activity state of the indoor person detected by the activity state detection device includes:
acquiring an indoor current image acquired by the camera;
and identifying the current image to acquire the posture information of the indoor person so as to determine the activity state of the indoor person, wherein the activity state comprises a sleep state and a non-sleep state.
3. The control method according to claim 2, wherein,
according to VOC concentration and indoor personnel's active state control system oxygen module is according to the operation of corresponding presetting the operation mode, include:
judging whether all the indoor personnel are in a sleeping state;
if all the indoor personnel are in a sleeping state, judging whether the VOC concentration reaches a preset VOC concentration threshold value;
if the VOC concentration reaches the preset VOC concentration threshold value, the oxygen generation module is started to release oxygen with preset oxygen concentration.
4. The control method according to claim 3,
if the indoor personnel are in the non-sleep state, determining the oxygen concentration corresponding to the VOC concentration according to a preset VOC concentration and oxygen concentration relation mapping table;
identifying the current image to obtain face information so as to determine the current number of people in the room and the age estimation value of each person;
judging whether the age estimation values exceed a preset age threshold or not;
if the age estimation value exceeding the preset age threshold value exists in the age estimation value, the oxygen concentration of a preset percentage is increased on the basis of the oxygen concentration to serve as a first target oxygen concentration, and the oxygen generation module is started to release oxygen of the first target oxygen concentration.
5. The control method according to claim 4, further comprising:
judging whether the current number of people exceeds a preset number of people threshold value;
if the current number of people exceeds the preset number of people threshold, increasing the oxygen concentration of a preset percentage on the basis of the first target oxygen concentration to serve as a second target oxygen concentration, and enabling the oxygen generation module to release oxygen of the second target oxygen concentration.
6. The control method according to claim 4,
the greater the VOC concentration, the greater the corresponding oxygen concentration.
7. The control method according to claim 1,
the activity state detection device comprises an infrared detection device;
the acquiring of the activity state of the indoor person detected by the activity state detection device includes:
the infrared detection device is used for detecting whether the movement of the indoor personnel changes within a set time length so as to determine the activity state of the indoor personnel, wherein the activity state comprises a sleep state and a non-sleep state.
8. The control method according to claim 7,
according to VOC concentration with indoor personnel's active state control system oxygen module is according to the operation of corresponding presetting the operation mode, include:
judging whether all the indoor personnel are in a sleeping state;
if all the indoor personnel are in a sleeping state, judging whether the VOC concentration reaches a preset VOC concentration threshold value;
if the VOC concentration reaches the preset VOC concentration threshold value, the oxygen generation module is started to release oxygen with preset oxygen concentration.
9. The control method according to claim 8,
if the indoor personnel are in the non-sleep state, determining the oxygen concentration corresponding to the VOC concentration according to a preset VOC concentration and oxygen concentration relation mapping table;
acquiring the current number of people in the room detected by the infrared detection device;
judging whether the current number of people exceeds a preset number of people threshold value;
if the current number of people exceeds the preset number of people threshold, increasing the oxygen concentration of a preset percentage on the basis of the oxygen concentration to serve as a first target oxygen concentration, and enabling the oxygen generation module to release oxygen of the first target oxygen concentration.
10. An oxygen-enriched air conditioner comprising:
the outdoor unit is internally provided with an oxygen generation module for providing oxygen; and
the indoor unit is internally provided with a VOC detection module for detecting the VOC concentration in indoor air and an activity state detection device for detecting the activity state of indoor personnel;
a controller comprising a memory and a processor, the memory having stored therein a machine-executable program for implementing the control method of any one of claims 1 to 9 when executed by the processor.
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