CN111720948A - Control method and device of fresh air conditioner - Google Patents
Control method and device of fresh air conditioner Download PDFInfo
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- CN111720948A CN111720948A CN202010538246.XA CN202010538246A CN111720948A CN 111720948 A CN111720948 A CN 111720948A CN 202010538246 A CN202010538246 A CN 202010538246A CN 111720948 A CN111720948 A CN 111720948A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 526
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 263
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 247
- 238000001514 detection method Methods 0.000 claims abstract description 113
- 230000008859 change Effects 0.000 claims abstract description 40
- 239000003570 air Substances 0.000 description 230
- 238000004378 air conditioning Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
- F24F11/526—Indication arrangements, e.g. displays giving audible indications
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method and a control device of a fresh air conditioner. Wherein, the method comprises the following steps: after the fresh air conditioner operates for a first preset time, detecting the concentration of carbon dioxide in a controlled area of the fresh air conditioner through a carbon dioxide detection device to obtain a first concentration of carbon dioxide; after a second preset time, detecting the concentration of carbon dioxide in the area controlled by the fresh air conditioner through a carbon dioxide detection device to obtain a second concentration of carbon dioxide; calculating the difference value of the first carbon dioxide concentration and the second carbon dioxide concentration to obtain a carbon dioxide concentration change value; and controlling the wind gear of the fresh air conditioner according to the comparison result of the carbon dioxide concentration change value and a preset threshold value. The invention solves the technical problem that the fresh air control method in the prior art cannot control fresh air under the condition that the carbon dioxide detection device fails.
Description
Technical Field
The invention relates to the field of air conditioner control, in particular to a control method and device of a fresh air conditioner.
Background
Along with the continuous popularization of intelligent air conditioners, air conditioning systems are more and more in the type of adding fresh air function. For example, in the related art, an air quality sensor or a carbon dioxide detection device is fixed to the inner side of the casing of the indoor unit through a fixing device, so as to detect the indoor air quality, thereby controlling the fresh air system. However, if the detection device fails, the fresh air control mode has a failure condition, which leads to the deterioration of indoor air quality.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a control method and a control device of a fresh air conditioner, which at least solve the technical problem that the fresh air control method in the prior art cannot control fresh air under the condition that a carbon dioxide detection device fails.
According to an aspect of an embodiment of the present invention, a control method for a fresh air conditioner is provided, including: after the fresh air conditioner operates for a first preset time, detecting the concentration of carbon dioxide in a controlled area of the fresh air conditioner through a carbon dioxide detection device to obtain a first carbon dioxide concentration; after a second preset time, detecting the concentration of carbon dioxide in the area controlled by the fresh air conditioner through a carbon dioxide detection device to obtain a second carbon dioxide concentration; calculating the difference value between the carbon dioxide concentration I and the carbon dioxide concentration II to obtain a carbon dioxide concentration change value; and controlling the wind gear of the fresh air conditioner according to the comparison result of the carbon dioxide concentration change value and the preset threshold value.
Optionally, according to the comparison result of the carbon dioxide concentration variation value and the preset threshold, the control of the wind shield of the fresh air conditioner comprises: if the comparison result is that the carbon dioxide concentration change value is smaller than the preset threshold value, determining that the carbon dioxide detection device normally operates, and controlling the wind shield of the fresh air conditioner to normally operate; and if the comparison result is that the carbon dioxide concentration change value is not less than the preset threshold value, determining that the carbon dioxide detection device fails, determining the air quality condition in the area before the carbon dioxide detection device fails, and controlling the wind gear of the fresh air conditioner according to the air quality condition.
Optionally, controlling the damper of the fresh air conditioner according to the air quality condition includes: if the air quality condition indicates that the air quality is excellent, keeping the wind shield of the fresh air conditioner unchanged; and if the air quality condition indicates that the air quality is not excellent, adjusting the wind gear of the fresh air conditioner to the highest wind gear.
Optionally, after determining that the carbon dioxide detection device fails, the method further includes: triggering reminding information in a preset reminding mode to remind that the carbon dioxide detection device is out of work, wherein the preset reminding mode is at least one of the following modes: light, vibration, sound.
Optionally, after determining that the carbon dioxide detection device fails, the method further includes: determining the number of target objects in the area by adopting an infrared detection device; and controlling the wind gear of the fresh air conditioner based on the number of the target objects in the region.
Optionally, controlling the windshield of the fresh air conditioner based on the number of the target objects in the area includes: if the number of the target objects in the area is larger than the preset number, adjusting the wind level of the fresh air conditioner to the highest wind level; and if the number of the target objects in the area is not more than the preset number, keeping the wind shield of the fresh air conditioner unchanged.
According to another aspect of the embodiments of the present invention, there is also provided a control device for a fresh air conditioner, including: the first acquisition module is used for detecting the concentration of carbon dioxide in a controlled area of the fresh air conditioner through a carbon dioxide detection device after the fresh air conditioner operates for a first preset time to obtain a first concentration of carbon dioxide; the second acquisition module is used for detecting the concentration of carbon dioxide in the area controlled by the fresh air conditioner through the carbon dioxide detection device after a second preset time, so as to obtain a second concentration of carbon dioxide; the calculation module is used for calculating the difference value between the carbon dioxide concentration I and the carbon dioxide concentration II to obtain a carbon dioxide concentration change value; and the control module is used for controlling the wind gear of the fresh air conditioner according to the comparison result of the carbon dioxide concentration change value and the preset threshold value.
Optionally, the control module further includes: the first comparison unit is used for determining that the carbon dioxide detection device normally operates and controlling the wind shield of the fresh air conditioner to normally operate if the comparison result shows that the carbon dioxide concentration change value is smaller than a preset threshold value; and the second comparison unit is used for determining that the carbon dioxide detection device fails if the comparison result shows that the carbon dioxide concentration change value is not less than the preset threshold value, determining the air quality condition in the area before the carbon dioxide detection device fails, and controlling the wind gear of the fresh air conditioner according to the air quality condition.
According to another aspect of the embodiment of the present invention, a nonvolatile storage medium is further provided, where the nonvolatile storage medium includes a stored program, and the program controls a device in which the nonvolatile storage medium is located to execute a control method of a fresh air conditioner when running.
According to another aspect of the embodiments of the present invention, there is also provided an electronic device, including a processor and a memory; the storage is stored with computer readable instructions, and the processor is used for executing the computer readable instructions, wherein the computer readable instructions execute a control method of the fresh air conditioner when running.
In the embodiment of the invention, after the fresh air conditioner operates for a first preset time, the carbon dioxide concentration in a controlled area of the fresh air conditioner is detected by a carbon dioxide detection device to obtain a first carbon dioxide concentration; after a second preset time, detecting the concentration of carbon dioxide in the area controlled by the fresh air conditioner through a carbon dioxide detection device to obtain a second carbon dioxide concentration; calculating the difference value between the carbon dioxide concentration I and the carbon dioxide concentration II to obtain a carbon dioxide concentration change value; according to the method for controlling the wind shield of the fresh air conditioner according to the comparison result of the carbon dioxide concentration change value and the preset threshold value, the technical problem that the fresh air control method in the prior art cannot perform fresh air control under the condition that a carbon dioxide detection device fails is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flowchart of a control method of a fresh air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an alternative control method of a fresh air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a control device of a fresh air conditioner according to an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
According to an embodiment of the present invention, there is provided a method embodiment of a control method of a fresh air conditioner, it should be noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that here.
Example one
Fig. 1 is a flowchart of a control method of a fresh air conditioner according to an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
and S102, after the fresh air conditioner runs for a first preset time, detecting the concentration of carbon dioxide in a controlled area of the fresh air conditioner through a carbon dioxide detection device to obtain a first carbon dioxide concentration.
Specifically, after a fresh air system of the air conditioner runs for a preset time, a carbon dioxide concentration detection device arranged on an external shell of the air conditioner can detect the concentration of carbon dioxide in ambient air, and the concentration of carbon dioxide detected at the moment is used as the concentration of carbon dioxide I.
The carbon dioxide concentration detection device may be an infrared carbon dioxide gas detection device, or may be an ultrasonic carbon dioxide concentration detection device, and the specific carbon dioxide concentration detection device is not particularly limited herein.
For example, after the air conditioner starts the fresh air operation function for 30 minutes, the equipment starts the method, namely, the equipment starts to collect the air of the environment where the air conditioner is located through the infrared carbon dioxide gas detection device, analyzes the carbon dioxide concentration value in the air and transmits the concentration value to the air conditioner processor for the subsequent processing steps.
And step S104, after a second preset time, detecting the concentration of carbon dioxide in the area controlled by the fresh air conditioner through a carbon dioxide detection device to obtain a second carbon dioxide concentration.
Specifically, after a carbon dioxide detection device in the air conditioner collects a carbon dioxide concentration first value, after a preset time, a carbon dioxide detection device continues to collect a carbon dioxide concentration second value, and the collection method of the carbon dioxide concentration second value is the same as that of the carbon dioxide concentration first value. And sending the collected carbon dioxide concentration two to a processor of the air conditioner for subsequent comparison of the carbon dioxide concentration one and the carbon dioxide concentration two.
And step S106, calculating the difference value between the first carbon dioxide concentration and the second carbon dioxide concentration to obtain a carbon dioxide concentration change value.
Specifically, through the steps described above in the embodiment of the present invention, after obtaining the first carbon dioxide concentration and the second carbon dioxide concentration, the processor of the air conditioner performs a difference calculation according to the two carbon dioxide concentration values, that is, subtracting one carbon dioxide concentration value from the other carbon dioxide concentration value, and taking an absolute value of the difference to represent the concentration variation of the carbon dioxide. For example, after 30 minutes of continuous operation of the fresh air conditioner, the fresh air conditioner starts to enter a carbon dioxide detection device failure determination flow, detects the carbon dioxide concentration T1(CO2) at the time T1, detects the carbon dioxide concentration T2(CO2) at the time T2 after waiting for 30 minutes of continuous operation, and then determines the carbon dioxide concentration difference in the time period, that is, the carbon dioxide concentration change value | [ delta ] T (CO2) | ═ T2(CO2) -T1(CO2) |.
And S108, controlling the wind gear of the fresh air conditioner according to the comparison result of the carbon dioxide concentration change value and a preset threshold value.
Optionally, according to the comparison result of the carbon dioxide concentration variation value and the preset threshold, the control of the wind shield of the fresh air conditioner comprises: if the comparison result is that the carbon dioxide concentration change value is smaller than the preset threshold value, determining that the carbon dioxide detection device normally operates, and controlling the wind shield of the fresh air conditioner to normally operate; and if the comparison result is that the carbon dioxide concentration change value is not less than the preset threshold value, determining that the carbon dioxide detection device fails, determining the air quality condition in the area before the carbon dioxide detection device fails, and controlling the wind gear of the fresh air conditioner according to the air quality condition.
Specifically, after the difference between the carbon dioxide concentration one and the carbon dioxide concentration two is calculated, a carbon dioxide concentration change value is obtained, in order to further determine whether the carbon dioxide detection device fails, the carbon dioxide concentration change value may be compared with a preset threshold value preset in an air conditioner processor, and when the carbon dioxide concentration change value is smaller than the preset threshold value as a result of the comparison, it is indicated that the carbon dioxide detection device installed on the air conditioner casing can normally detect that the carbon dioxide content in the air of the air conditioning environment is stable, so as to determine that the carbon dioxide detection device is in a normal operation working state, and simultaneously, the fresh air damper is controlled to keep the existing damper unchanged, that is, the fresh air damper is kept to normally operate. If the comparison result is that the carbon dioxide concentration change value is not less than the preset threshold value, it is indicated that the carbon dioxide detection device mounted on the air conditioner casing cannot normally detect that the carbon dioxide content in the air of the air conditioning environment is stable, and further it is determined that the carbon dioxide detection device is in an abnormal operation working state, that is, the carbon dioxide detection device is out of work, and on the basis of the determination, whether the wind gear of the fresh air conditioner is controlled or not is determined according to the air quality of the current area.
Optionally, controlling the damper of the fresh air conditioner according to the air quality condition includes: if the air quality condition indicates that the air quality is excellent, keeping the wind shield of the fresh air conditioner unchanged; and if the air quality condition indicates that the air quality is not excellent, adjusting the wind gear of the fresh air conditioner to the highest wind gear.
Specifically, after it has been judged that the carbon dioxide detection device is out of order, the air conditioner needs to detect the air quality of the environment, and whether change new trend windscreen is selected according to the air quality condition. For example, when the air quality detected by the air detection device of the air conditioner is excellent, the current air quality is good, and the fresh air damper does not need to be added, then a measure for keeping the fresh air damper unchanged is adopted according to the judgment. When the air quality is detected to be not excellent by the air detection device of the air conditioner, the current air quality is not good, the air outlet efficiency needs to be increased by the fresh air function, and then the measure of adjusting the wind gear of the fresh air conditioner to the highest wind gear is adopted according to the judgment result.
Optionally, after determining that the carbon dioxide detection device fails, the method further includes: triggering reminding information in a preset reminding mode to remind that the carbon dioxide detection device is out of work, wherein the preset reminding mode is at least one of the following modes: light, vibration, sound.
Specifically, in order to let the user who uses the air conditioner in time know that the carbon dioxide detection device of fresh air conditioner has become invalid, after judging that the carbon dioxide detection device became invalid, the air conditioner can send through display panel and predetermine warning information to arouse user's attention, wherein, predetermine the warning mode and can be light, vibrations or the sound that the display panel through the air conditioner sent, do not limit here.
Optionally, after determining that the carbon dioxide detection device fails, the method further includes: determining the number of target objects in the area by adopting an infrared detection device; and controlling the wind gear of the fresh air conditioner based on the number of the target objects in the region.
Specifically, after the carbon dioxide detection device is judged to be invalid, the embodiment of the invention can also determine that a plurality of target objects exist in the environment where the fresh air conditioner is located according to the infrared detection device, namely, a plurality of people exist in the room where the air conditioner is located. And according to the number of people that infrared detection device confirms, come to control air conditioner new trend wind gear, removed the prerequisite that uses carbon dioxide detection device to detect from.
Optionally, controlling the windshield of the fresh air conditioner based on the number of the target objects in the area includes: if the number of the target objects in the area is larger than the preset number, adjusting the wind level of the fresh air conditioner to the highest wind level; and if the number of the target objects in the area is not more than the preset number, keeping the wind shield of the fresh air conditioner unchanged.
Specifically, after the infrared detection device of the fresh air conditioner judges the number of people in the environment, whether the fresh air damper is adjusted to the highest degree or not is judged according to the preset number of people prestored in the air conditioner processor. If the number of the target objects in the area is larger than the preset number, adjusting the wind level of the fresh air conditioner to the highest wind level; and if the number of the target objects in the area is not more than the preset number, keeping the wind shield of the fresh air conditioner unchanged. For example, after the air conditioner judges that the carbon dioxide detection device fails, five people in the house are detected through the infrared sensor, the number of the people preset in the air conditioner processor is three, so that the number of the people in the house is larger than the preset number of the people, and the fresh air level of the air conditioner is increased to the maximum in order to ensure the fresh air filtering effect.
In summary, in the fresh air conditioner control method provided by the invention, after the fresh air conditioner operates for the first preset time, the carbon dioxide concentration in the area controlled by the fresh air conditioner is detected by the carbon dioxide detection device, so as to obtain the first carbon dioxide concentration; after a second preset time, detecting the concentration of carbon dioxide in the area controlled by the fresh air conditioner through a carbon dioxide detection device to obtain a second carbon dioxide concentration; calculating the difference value between the carbon dioxide concentration I and the carbon dioxide concentration II to obtain a carbon dioxide concentration change value; according to the method for controlling the wind shield of the fresh air conditioner according to the comparison result of the carbon dioxide concentration change value and the preset threshold value, the technical problem that the fresh air control method in the prior art cannot perform fresh air control under the condition that a carbon dioxide detection device fails is solved.
Optionally, as shown in fig. 2, when the user normally uses the fresh air conditioner, the fresh air fan continuously operates for T min (for example, set to 30min), the failure determination of the carbon dioxide detection device starts to enter, the carbon dioxide concentration T1(CO2) at time T1, the fresh air fan continuously operates for Ymin (for example, set to 30min), the carbon dioxide concentration T2(CO2) at time T2 is detected, the carbon dioxide concentration difference of the time period is determined, Δ T (CO2) ═ T2(CO2) -T1(CO2), such as |, Δ T (CO2) | ≧ X (for example, set to 100), if the condition is met, the carbon dioxide detection normal operation is determined, the fresh air operation mode is normally controlled, if the condition is not met, the carbon dioxide detection device is determined to normally operate, the display panel flashes the light to prompt the user, it is determined that the air quality detection is excellent before the failure, the existing fresh air operation windshield is maintained, if the, Poor), the new wind gear is opened to the highest wind gear, and when the new fan is started next time, the new wind gear is raised by one gear from the low wind gear every t3min until the new wind gear is opened to the highest wind gear.
Through above-mentioned scheme, can realize also can adjust the new trend windscreen after carbon dioxide detection device became invalid, guarantee the air quality.
Example two
Fig. 3 is a block diagram of a control device of a fresh air conditioner according to an embodiment of the present invention, and as shown in fig. 3, the device includes:
the first obtaining module 20 is configured to detect, by a carbon dioxide detecting device, a carbon dioxide concentration in an area controlled by the fresh air conditioner after the fresh air conditioner operates for a first preset time, so as to obtain a first carbon dioxide concentration.
Specifically, after a fresh air system of the air conditioner runs for a preset time, a carbon dioxide concentration detection device arranged on an external shell of the air conditioner can detect the concentration of carbon dioxide in ambient air, and the concentration of carbon dioxide detected at the moment is used as the concentration of carbon dioxide I.
The carbon dioxide concentration detection device may be an infrared carbon dioxide gas detection device, or may be an ultrasonic carbon dioxide concentration detection device, and the specific carbon dioxide concentration detection device is not particularly limited herein.
For example, after the air conditioner starts the fresh air operation function for 30 minutes, the equipment starts the method, namely, the equipment starts to collect the air of the environment where the air conditioner is located through the infrared carbon dioxide gas detection device, analyzes the carbon dioxide concentration value in the air and transmits the concentration value to the air conditioner processor for the subsequent processing steps.
And the second obtaining module 22 is configured to detect, by the carbon dioxide detection device, the concentration of carbon dioxide in the area controlled by the fresh air conditioner after a second preset time, so as to obtain a second carbon dioxide concentration.
Specifically, after a carbon dioxide detection device in the air conditioner collects a carbon dioxide concentration first value, after a preset time, a carbon dioxide detection device continues to collect a carbon dioxide concentration second value, and the collection method of the carbon dioxide concentration second value is the same as that of the carbon dioxide concentration first value. And sending the collected carbon dioxide concentration two to a processor of the air conditioner for subsequent comparison of the carbon dioxide concentration one and the carbon dioxide concentration two.
And the calculating module 24 is configured to calculate a difference between the first carbon dioxide concentration and the second carbon dioxide concentration to obtain a carbon dioxide concentration variation value.
Specifically, through the steps described above in the embodiment of the present invention, after obtaining the first carbon dioxide concentration and the second carbon dioxide concentration, the processor of the air conditioner performs a difference calculation according to the two carbon dioxide concentration values, that is, subtracting one carbon dioxide concentration value from the other carbon dioxide concentration value, and taking an absolute value of the difference to represent the concentration variation of the carbon dioxide. For example, after 30 minutes of continuous operation of the fresh air conditioner, the fresh air conditioner starts to enter a carbon dioxide detection device failure determination flow, detects the carbon dioxide concentration T1(CO2) at the time T1, detects the carbon dioxide concentration T2(CO2) at the time T2 after waiting for 30 minutes of continuous operation, and then determines the carbon dioxide concentration difference in the time period, that is, the carbon dioxide concentration change value | [ delta ] T (CO2) | ═ T2(CO2) -T1(CO2) |.
And the control module 26 is configured to control a damper of the fresh air conditioner according to a comparison result between the carbon dioxide concentration variation value and a preset threshold value.
Optionally, the control module 26 includes: the first comparison unit is used for determining that the carbon dioxide detection device normally operates and controlling the wind shield of the fresh air conditioner to normally operate if the comparison result shows that the carbon dioxide concentration change value is smaller than a preset threshold value; and the second comparison unit is used for determining that the carbon dioxide detection device fails if the comparison result shows that the carbon dioxide concentration change value is not less than the preset threshold value, determining the air quality condition in the area before the carbon dioxide detection device fails, and controlling the wind gear of the fresh air conditioner according to the air quality condition.
Specifically, after the difference between the carbon dioxide concentration one and the carbon dioxide concentration two is calculated, a carbon dioxide concentration change value is obtained, in order to further determine whether the carbon dioxide detection device fails, the carbon dioxide concentration change value may be compared with a preset threshold value preset in an air conditioner processor, and when the carbon dioxide concentration change value is smaller than the preset threshold value as a result of the comparison, it is indicated that the carbon dioxide detection device installed on the air conditioner casing can normally detect that the carbon dioxide content in the air of the air conditioning environment is stable, so as to determine that the carbon dioxide detection device is in a normal operation working state, and simultaneously, the fresh air damper is controlled to keep the existing damper unchanged, that is, the fresh air damper is kept to normally operate. If the comparison result is that the carbon dioxide concentration change value is not less than the preset threshold value, it is indicated that the carbon dioxide detection device mounted on the air conditioner casing cannot normally detect that the carbon dioxide content in the air of the air conditioning environment is stable, and further it is determined that the carbon dioxide detection device is in an abnormal operation working state, that is, the carbon dioxide detection device is out of work, and on the basis of the determination, whether the wind gear of the fresh air conditioner is controlled or not is determined according to the air quality of the current area.
Optionally, the second comparing unit is further configured to control the damper of the fresh air conditioner according to the air quality condition, including: if the air quality condition indicates that the air quality is excellent, keeping the wind shield of the fresh air conditioner unchanged; and if the air quality condition indicates that the air quality is not excellent, adjusting the wind gear of the fresh air conditioner to the highest wind gear.
Specifically, after it has been judged that the carbon dioxide detection device is out of order, the air conditioner needs to detect the air quality of the environment, and whether change new trend windscreen is selected according to the air quality condition. For example, when the air quality detected by the air detection device of the air conditioner is excellent, the current air quality is good, and the fresh air damper does not need to be added, then a measure for keeping the fresh air damper unchanged is adopted according to the judgment. When the air quality is detected to be not excellent by the air detection device of the air conditioner, the current air quality is not good, the air outlet efficiency needs to be increased by the fresh air function, and then the measure of adjusting the wind gear of the fresh air conditioner to the highest wind gear is adopted according to the judgment result.
Optionally, after determining that the carbon dioxide detecting device fails, the device further includes: the reminding unit is used for triggering reminding information in a preset reminding mode to remind that the carbon dioxide detection device is out of work, wherein the preset reminding mode is at least one of the following modes: light, vibration, sound.
Specifically, in order to let the user who uses the air conditioner in time know that the carbon dioxide detection device of fresh air conditioner has become invalid, after judging that carbon dioxide detection device became invalid, the air conditioner can send through display panel and predetermine warning information to arouse user's attention, wherein, predetermine the warning mode and can be light, vibrations or the sound that sends through air conditioner display panel.
Optionally, the apparatus further comprises: the infrared module is used for determining the number of target objects in the area by adopting an infrared detection device; and controlling the wind gear of the fresh air conditioner based on the number of the target objects in the region.
Specifically, after the carbon dioxide detection device is judged to be invalid, the embodiment of the invention can also determine that a plurality of target objects exist in the environment where the fresh air conditioner is located according to the infrared detection device, namely, a plurality of people exist in the room where the air conditioner is located. And according to the number of people that infrared detection device confirms, come to control air conditioner new trend wind gear, removed the prerequisite that uses carbon dioxide detection device to detect from.
Optionally, controlling the windshield of the fresh air conditioner based on the number of the target objects in the area includes: if the number of the target objects in the area is larger than the preset number, adjusting the wind level of the fresh air conditioner to the highest wind level; and if the number of the target objects in the area is not more than the preset number, keeping the wind shield of the fresh air conditioner unchanged.
Specifically, after the infrared detection device of the fresh air conditioner judges the number of people in the environment, whether the fresh air damper is adjusted to the highest degree or not is judged according to the preset number of people prestored in the air conditioner processor. If the number of the target objects in the area is larger than the preset number, adjusting the wind level of the fresh air conditioner to the highest wind level; and if the number of the target objects in the area is not more than the preset number, keeping the wind shield of the fresh air conditioner unchanged. For example, after the air conditioner judges that the carbon dioxide detection device fails, the air conditioner acquires that five people are in total in a room through the infrared sensor, the number of people preset in the air conditioner processor is three, so that the number of people in the room is larger than the preset number of people, and the fresh air level of the air conditioner is increased to the maximum in order to ensure the fresh air filtering effect.
According to another aspect of the embodiment of the present invention, a nonvolatile storage medium is further provided, where the nonvolatile storage medium includes a stored program, and the program controls a device in which the nonvolatile storage medium is located to execute a control method of a fresh air conditioner when running.
According to another aspect of the embodiments of the present invention, there is also provided an electronic device, including a processor and a memory; the storage is stored with computer readable instructions, and the processor is used for executing the computer readable instructions, wherein the computer readable instructions execute a control method of the fresh air conditioner when running.
Through the steps, the fresh air damper can be adjusted after the carbon dioxide detection device fails, and the air quality is guaranteed.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A control method of a fresh air conditioner is characterized by comprising the following steps:
after the fresh air conditioner operates for a first preset time, detecting the concentration of carbon dioxide in a controlled area of the fresh air conditioner through a carbon dioxide detection device to obtain a first concentration of carbon dioxide;
after a second preset time, detecting the concentration of carbon dioxide in the area controlled by the fresh air conditioner through a carbon dioxide detection device to obtain a second concentration of carbon dioxide;
calculating the difference value of the first carbon dioxide concentration and the second carbon dioxide concentration to obtain a carbon dioxide concentration change value;
and controlling the wind gear of the fresh air conditioner according to the comparison result of the carbon dioxide concentration change value and a preset threshold value.
2. The method according to claim 1, wherein controlling the wind level of the fresh air conditioner according to the comparison result of the carbon dioxide concentration variation value and a preset threshold comprises:
if the comparison result is that the carbon dioxide concentration change value is smaller than the preset threshold value, determining that the carbon dioxide detection device normally operates, and simultaneously controlling the wind shield of the fresh air conditioner to normally operate;
and if the comparison result shows that the carbon dioxide concentration change value is not smaller than the preset threshold value, determining that the carbon dioxide detection device fails, determining the air quality condition in the area before the carbon dioxide detection device fails, and controlling the wind gear of the fresh air conditioner according to the air quality condition.
3. The method of claim 2, wherein controlling the damper of the fresh air conditioner based on the air quality condition comprises:
if the air quality condition indicates that the air quality is excellent, keeping the wind shield of the fresh air conditioner unchanged;
and if the air quality condition indicates that the air quality is not excellent, adjusting the wind gear of the fresh air conditioner to the highest wind gear.
4. The method of claim 2, wherein upon determining that the carbon dioxide detection device has failed, the method further comprises:
triggering reminding information in a preset reminding mode to remind that the carbon dioxide detection device is out of work, wherein the preset reminding mode is at least one of the following modes: light, vibration, sound.
5. The method of claim 2, wherein upon determining that the carbon dioxide detection device has failed, the method further comprises:
determining the number of target objects in the area by adopting an infrared detection device;
and controlling the wind gear of the fresh air conditioner based on the number of the target objects in the area.
6. The method of claim 5, wherein controlling the damper of the fresh air conditioner based on the number of target objects in the zone comprises:
if the number of the target objects in the area is larger than the preset number, adjusting the wind level of the fresh air conditioner to the highest wind level;
and if the number of the target objects in the area is not greater than the preset number, keeping the wind level of the fresh air conditioner unchanged.
7. The utility model provides a controlling means of new trend air conditioner which characterized in that includes:
the system comprises a first acquisition module, a second acquisition module and a control module, wherein the first acquisition module is used for detecting the concentration of carbon dioxide in an area controlled by a fresh air conditioner through a carbon dioxide detection device after the fresh air conditioner runs for a first preset time to obtain a first concentration of carbon dioxide;
the second acquisition module is used for detecting the concentration of carbon dioxide in the area controlled by the fresh air conditioner through the carbon dioxide detection device after a second preset time, so as to obtain a second concentration of carbon dioxide;
the calculation module is used for calculating the difference value between the first carbon dioxide concentration and the second carbon dioxide concentration to obtain a carbon dioxide concentration change value;
and the control module is used for controlling the wind gear of the fresh air conditioner according to the comparison result of the carbon dioxide concentration change value and a preset threshold value.
8. The apparatus of claim 7, wherein the control module further comprises: the first comparison unit is used for determining that the carbon dioxide detection device normally operates and controlling the wind shield of the fresh air conditioner to normally operate if the comparison result shows that the carbon dioxide concentration change value is smaller than the preset threshold value; and the second comparison unit is used for determining that the carbon dioxide detection device fails if the comparison result shows that the carbon dioxide concentration change value is not smaller than the preset threshold value, determining the air quality condition in the area before the carbon dioxide detection device fails, and controlling the wind gear of the fresh air conditioner according to the air quality condition.
9. A non-volatile storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the non-volatile storage medium is located to perform the method of any of claims 1 to 6.
10. An electronic device comprising a processor and a memory; the memory has stored therein computer readable instructions for execution by the processor, wherein the computer readable instructions when executed perform the method of any one of claims 1 to 6.
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