CN113048623B - Fresh air conditioner control method and fresh air conditioner - Google Patents

Fresh air conditioner control method and fresh air conditioner Download PDF

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Publication number
CN113048623B
CN113048623B CN202110463727.3A CN202110463727A CN113048623B CN 113048623 B CN113048623 B CN 113048623B CN 202110463727 A CN202110463727 A CN 202110463727A CN 113048623 B CN113048623 B CN 113048623B
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indoor
temperature
concentration
carbon dioxide
fresh air
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CN113048623A (en
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冯文科
杨荣利
曾望
胡德志
杨为标
姜颖
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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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
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/34—Responding to malfunctions or emergencies to fire, excessive heat or smoke by opening air passages
    • 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
    • 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
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • 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
    • F24F2110/10—Temperature
    • 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
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)

Abstract

The invention provides a fresh air conditioner control method and a fresh air conditioner. The fresh air conditioner control method comprises the following steps: obtaining the indoor carbon dioxide concentration Cco2Indoor ambient temperature TIndoor useOutdoor ambient temperature TOutdoorsAnd comprehensively analyzing and judging whether the fire hazard exists in the indoor environment state or not based on the indoor carbon dioxide concentration, the indoor environment temperature and the outdoor environment temperature, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk. The fresh air conditioner has the function of fire early warning, and the judgment accuracy is provided by combining the temperature parameter and the carbon dioxide parameter, so that the fire early warning can be timely sent out.

Description

Fresh air conditioner control method and fresh air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fresh air conditioner control method and a fresh air conditioner.
Background
The human body is very sensitive to the increase of carbon dioxide in the air, the normal content of the carbon dioxide in the natural environment is 400ppm, and when the concentration of the carbon dioxide in a room is too high, the human body feels uncomfortable; when the concentration of carbon dioxide reaches 1000ppm, people feel bored, begin to have no concentration and generate palpitation; when the concentration of the carbon dioxide reaches 1500-; after the concentration exceeds 2000ppm, the thinking ability of people is obviously reduced; above 5000ppm, the body functions are disordered seriously, which makes people lose consciousness and unclear consciousness.
The factor causing the increase of the indoor carbon dioxide concentration is generally caused by the fact that indoor air is not circulated for a long time, and the carbon dioxide concentration can be reduced through a fresh air fan or a windowing ventilation mode and the like. When a fire disaster occurs indoors, a large amount of carbon dioxide gas is generated, the concentration of the carbon dioxide gas can rapidly rise in a short time, and the personal safety is seriously threatened.
Some existing household appliances such as air conditioners, purifiers and the like have a function of detecting the concentration of carbon dioxide, but generally can only judge the indoor control quality according to the concentration of carbon dioxide, and do not have a function of early warning of fire or have low early warning reliability.
Disclosure of Invention
In view of this, the present invention provides a fresh air conditioner control method and a fresh air conditioner, which are at least used for solving the technical problem of single air conditioner function in the prior art, and specifically:
in a first aspect, the present invention provides a fresh air conditioner control method, where the fresh air conditioner is provided with a carbon dioxide detection module and a temperature detection module, and the fresh air conditioner control method includes:
obtaining the indoor carbon dioxide concentration Cco2Indoor ambient temperature TIndoor useOutdoor ambient temperature TOutdoorsAnd comprehensively analyzing and judging whether the fire hazard exists in the indoor environment state or not based on the indoor carbon dioxide concentration, the indoor environment temperature and the outdoor environment temperature, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk.
In a further alternative,
when the concentration of the indoor carbon dioxide is greater than a first concentration threshold C1The indoor environment temperature is greater than a first threshold value TChamber 1The rising rate of the indoor environment temperature is larger than the temperature rising threshold value VT1The temperature difference between the indoor environment and the outdoor environment is greater than the temperature difference threshold value delta T1, the indoor environment is judged to have fire hazard, and fire risk early warning is sent outPrompts and/or climate control recommendations for fire risk.
In a further alternative,
when the indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs greater than the temperature rise threshold VTAnd when the temperature difference between the indoor environment and the outdoor environment is greater than the temperature difference threshold value delta T, judging that the indoor environment has fire hazard, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk.
In a further alternative,
indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs greater than the temperature rise threshold VTThe temperature difference between the indoor environment and the outdoor environment is less than the temperature difference threshold value delta T, and the indoor carbon dioxide concentration Cco2Greater than a first concentration threshold C1Judging that the indoor environment has fire hazard, and sending out fire risk early warning prompt and/or air conditioner control suggestion aiming at the fire risk; alternatively, the first and second electrodes may be,
when the indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs greater than the temperature rise threshold VTThe temperature difference between the indoor environment and the outdoor environment is less than a temperature difference threshold value delta T, and the indoor carbon dioxide concentration is greater than a first concentration threshold value C1，
The concentration of the indoor carbon dioxide is less than a first concentration threshold C1But greater than the second concentration threshold C2，C1>C2Indoor carbon dioxide concentration Cco2Rate of rise greater than Vc1And judging that the indoor environment has fire hazard, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk.
In a further alternative,
indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs less than the temperature rise threshold VTThe temperature difference between the indoor environment and the outdoor environment is greater than the temperature difference threshold value delta T, and the indoor carbon dioxide concentration Cco2Greater than a first concentration threshold C1To determine whether there is fire hidden in the indoor environmentIf the fire happens, sending out a fire risk early warning prompt and/or an air conditioning control suggestion aiming at the fire risk; alternatively, the first and second electrodes may be,
when the indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs less than the temperature rise threshold VTThe temperature difference between the indoor environment and the outdoor environment is greater than a temperature difference threshold value delta T, and the indoor carbon dioxide concentration is greater than a first concentration threshold value C1，
The concentration of the indoor carbon dioxide is less than a first concentration threshold C1But greater than the second concentration threshold C2，C1>C2Indoor carbon dioxide concentration Cco2Rate of rise greater than Vc1And judging that the indoor environment has fire hazard, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk.
In a further alternative,
when the concentration of the indoor carbon dioxide is less than a third concentration threshold C3But greater than the second concentration threshold C2When the indoor air is judged to be in a pollution state, the fresh air system is controlled to start, and/or an air pollution prompt is sent,
wherein, C1＞C3＞C2。
In a further alternative,
when the concentration of the indoor carbon dioxide is less than a first concentration threshold C1But greater than the second concentration threshold C2，C1>C2Indoor carbon dioxide concentration Cco2Rate of rise less than Vc1And when the indoor air is judged to be in a pollution state, the fresh air system is controlled to start, and/or an air pollution prompt is sent.
In a further alternative,
when the air conditioner is in the power-on state and the indoor environment temperature TIndoor useWhen the indoor carbon dioxide concentration Cco is less than the first temperature threshold value T1, if the indoor carbon dioxide concentration Cco is detected2Greater than a fourth concentration threshold C3Continuously judging the indoor environment temperature TIndoor useWhether greater than a second temperature threshold T2, wherein T1>T2；
If TIndoor use>T2, determining that there is fire in the indoor environmentAnd (4) sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk.
In a further alternative,
when the indoor carbon dioxide concentration Cco2Greater than a second concentration threshold C2But less than a third concentration threshold C3And when the indoor air is judged to be in a pollution state, the fresh air system is controlled to start, and/or an air pollution prompt is sent.
In a further alternative,
when the indoor carbon dioxide concentration Cco2Greater than a third concentration threshold C3But less than a fourth concentration threshold C4And the rising rate of the carbon dioxide concentration is less than Vc1And when the indoor air is judged to be in a pollution state, the fresh air system is controlled to start, and/or an air pollution prompt is sent.
Further optionally, the fire risk early warning prompt and the air pollution prompt are sent out through a fresh air conditioner and/or a mobile terminal connected with the fresh air conditioner.
In a second aspect, a fresh air conditioner is provided, comprising:
the carbon dioxide detection module is used for detecting the concentration of indoor carbon dioxide;
the temperature detection module comprises an indoor temperature detection module for detecting indoor temperature and an outdoor temperature detection module for detecting outdoor temperature;
the calculation module is used for calculating a temperature difference value, a temperature rising rate and a carbon dioxide concentration rising rate;
and the control module is used for executing the fresh air conditioner control method according to the detection results of the carbon dioxide detection module and the temperature detection module and the calculation result of the calculation module.
Further optionally, the fresh air conditioner further comprises a mobile terminal, wherein the mobile terminal is used for sending out early warning information and/or inputting a control instruction for the fresh air conditioner.
According to the invention, the indoor environment is judged by monitoring two indoor parameters of carbon dioxide and temperature, so that the fresh air conditioner has the function of fire risk early warning prompt, the two parameters are combined with each other to improve the accuracy of judgment, and early warning can be timely and accurately sent to a user.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
FIG. 1 shows a flow chart of a fresh air conditioning control method according to the present invention;
fig. 2 shows a schematic structural diagram of the fresh air conditioner indoor unit of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
According to the invention, the indoor environment state is judged in a mode of combining carbon dioxide and temperature, and an early warning prompt is sent out when the fire hazard is judged, and the two parameters are combined for judgment, so that the early warning accuracy can be improved, and the occurrence of misjudgment is reduced or avoided. The invention is described in detail below with reference to specific examples:
as shown in fig. 1, the present invention provides a fresh air conditioner control method, in which a carbon dioxide detection module and a temperature detection module are disposed on a fresh air conditioner, and the fresh air conditioner control method includes:
obtaining the indoor carbon dioxide concentration Cco2And temperature, judging the indoor environment state according to the carbon dioxide concentration and the temperature,
when the indoor environment is judged to be in a pollution state, sending an air pollution prompt;
and when the indoor environment is judged to have fire hazard, sending out a fire risk early warning prompt.
Preferably, the temperature detection module is used for detecting indoor temperature and outdoor temperature,
when the indoor temperature is higher than the first temperature threshold value, the indoor temperature rise rate and the indoor and outdoor temperature difference value are obtained, namely the indoor temperature is higher than the outdoor temperature, and whether fire hazard exists or not is judged according to the indoor temperature rise rate and the indoor and outdoor temperature difference value.
When the indoor temperature rising rate is greater than the temperature rising threshold value and the indoor and outdoor temperature difference value is greater than the temperature difference threshold value, judging that fire hazard exists;
and when the indoor temperature rising rate is smaller than the temperature rising threshold value and/or the indoor and outdoor temperature difference value is lower than the temperature difference threshold value, further judging whether fire hazard exists according to a carbon dioxide detection result.
Obtaining the indoor carbon dioxide concentration Cco2And calculating the rising rate V of the carbon dioxide concentrationc1When the concentration of the carbon dioxide is higher than the first concentration threshold value, judging that fire hazard exists;
the concentration of the carbon dioxide is lower than a second concentration threshold and higher than a third concentration threshold, and the indoor environment is judged to be in a pollution state;
when the concentration of the carbon dioxide is lower than the first concentration threshold value and higher than the third concentration threshold value, and the rising rate of the concentration of the carbon dioxide is lower than the rising rate of the concentration, judging that the indoor environment is in a pollution state;
when the concentration of the carbon dioxide is lower than the first concentration threshold and higher than the third concentration threshold, and the rising rate of the concentration of the carbon dioxide is higher than the rising rate of the concentration, judging that fire hazard exists;
the first concentration threshold value is larger than the second concentration threshold value, and the second concentration threshold value is larger than the third concentration threshold value.
In particular, in the first embodiment, the first temperature threshold T1 is 50 ℃, the temperature difference threshold Δ T is 30 ℃,
indoor environment>When the temperature in the room rises at 50 ℃, the rate of rise of the temperature in the room is detected<0.16 ℃/s, i.e. the temperature rise threshold VTThe value is 0.16 ℃/s and the indoor and outdoor temperature difference value<And at 30 ℃, no fire hazard exists.
When the indoor environment is higher than 50 ℃, when the indoor temperature rising rate is higher than 0.16 ℃/s and the indoor and outdoor temperature difference value is higher than 30 ℃, the fire hazard is judged to exist, and the user is reminded that the indoor temperature is abnormal. Preferably, can send sound or light early warning signal through new trend air conditioner self, perhaps, can also send the signal to mobile terminal through the network, if send the early warning at user's cell-phone through cell-phone APP, guarantee that the user can in time receive early warning information. Preferably, after the early warning information is sent to the mobile phone, the feedback of the user is detected, and when the user reads the information, the user does not remind within 24 h; and when the user is unread, 1 prompt is pushed every 1min until the user processes the early warning information, and the prompt is not given.
When the indoor environment is higher than 50 ℃, the indoor temperature rise rate is higher than 0.16 ℃/s, the indoor and outdoor temperature difference value is lower than 30 ℃, or the indoor temperature rise rate is lower than 0.16 ℃/s, the indoor and outdoor temperature difference is higher than 30 ℃, the concentration of carbon dioxide is detected, and the temperature and the carbon dioxide are used for jointly judging:
in this embodiment, the first concentration threshold is 4000ppm, the second concentration threshold is 2000ppm, the third concentration threshold is 1000ppm, and the concentration increase rate is 17 ppm/s;
when the concentration of carbon dioxide is more than 4000ppm, automatically pushing a message through a mobile phone APP to remind a user that the indoor environment is abnormal and fire hidden danger exists, detecting user feedback, and when the user reads, not reminding within 24 hours; and when the user is unread, 1 prompt is pushed every 1min until the user processes the early warning information, and the prompt is not given.
When the concentration of carbon dioxide is more than 1000ppm and less than 2000ppm, judging that the indoor environment is in a pollution state, and detecting that a fresh air system is started, and ending the process; if the fresh air system is not started, a prompt of high carbon dioxide concentration is automatically pushed through the mobile phone APP, and fresh air is recommended to be started or window ventilation is recommended; detecting user feedback, and when the user selects to ignore the message, no reminding is performed within 24 h; when the fresh air is selected, opening a fresh air system; when it is detected that the user message is unread, the reminder is pushed 1 time every 30 minutes. Or the fresh air conditioner can be controlled to start the fresh air system automatically.
When the carbon dioxide concentration is more than 2000ppm and less than 4000ppm, detecting the rising rate of the carbon dioxide concentration, when the rising rate of the carbon dioxide is less than 17ppm/s, judging that the indoor environment is in a pollution state, and detecting that a fresh air system is started, ending the process; if the fresh air system is not started, a prompt of high carbon dioxide concentration is automatically pushed through the mobile phone APP, and fresh air is recommended to be started or window ventilation is recommended; detecting user feedback, and when the user selects to ignore the message, no reminding is performed within 24 h; when the fresh air is selected to be opened, the fresh air system is opened; when it is detected that the user message is unread, the reminder is pushed 1 time every 30 minutes. Or the fresh air conditioner can be controlled to start the fresh air system automatically.
When the rising rate of carbon dioxide is greater than 17ppm/s, automatically pushing a message through a mobile phone APP to remind a user that the indoor environment is abnormal and fire hidden danger exists, then detecting user feedback, and when the user reads, no reminding is performed within 24 hours; and when the user is unread, 1 prompt is pushed every 1min until the user processes the early warning information, and the prompt is not given.
In the second embodiment, when the temperature detection module detects that the indoor temperature is lower than the first temperature threshold, whether fire hazard exists is judged according to the carbon dioxide concentration parameter.
Obtaining the indoor carbon dioxide concentration Cco2And calculating the rising rate of the carbon dioxide concentration, and judging whether fire hazard exists according to the carbon dioxide concentration and the rising rate of the carbon dioxide concentration.
The concentration of the carbon dioxide is lower than a second concentration threshold and higher than a third concentration threshold, and the indoor environment is judged to be in a pollution state;
when the concentration of the carbon dioxide is lower than a fourth concentration threshold value and higher than a second concentration threshold value, and the rising rate of the concentration of the carbon dioxide is lower than the rising rate of the concentration, judging that the indoor environment is in a pollution state;
when the concentration of the carbon dioxide is lower than a fourth concentration threshold value and higher than a second concentration threshold value, and the rising rate of the concentration of the carbon dioxide is higher than the rising rate of the concentration, judging that fire hazard exists;
and the fourth concentration threshold is greater than the second concentration threshold, and the second concentration threshold is greater than the third concentration threshold.
When the concentration of the carbon dioxide is higher than the fourth concentration threshold value and the indoor temperature is higher than the second temperature threshold value, judging that fire hazard exists;
and when the carbon dioxide concentration is higher than the fourth concentration threshold value and the indoor temperature is lower than the second temperature threshold value, judging that the indoor environment is in a pollution state.
Specifically, in this embodiment, the fourth temperature threshold is 5000 ℃, the second concentration threshold is 2000ppm, the third concentration threshold is 1000ppm, the concentration increase rate is 17ppm/s, the first temperature threshold is 50 ℃, and the second temperature threshold is 45 ℃;
detecting carbon dioxide concentration when the power-on state or indoor environment is <50 ℃, and when detecting: when the concentration of carbon dioxide is more than 1000ppm and less than 2000ppm, judging that the indoor environment is in a pollution state, and detecting that a fresh air system is started, and ending the process; if the fresh air system is not started, a prompt of high carbon dioxide concentration is automatically pushed through the mobile phone APP, and fresh air is recommended to be started or window ventilation is recommended; detecting user feedback, and when the user selects to ignore the message, no reminding is performed within 24 h; when the fresh air is selected to be opened, the fresh air system is opened; when it is detected that the user message is unread, the reminder is pushed 1 time every 30 minutes. Or the fresh air conditioner can be controlled to start the fresh air system automatically. .
Detecting carbon dioxide concentration when the power-on state or indoor environment is <50 ℃, and when detecting: when the carbon dioxide concentration is more than 2000ppm and less than 5000ppm, detecting the rising rate of the carbon dioxide concentration rising from 2000ppm to 5000ppm, when the carbon dioxide concentration rising rate is less than 17ppm/s, judging that the indoor environment is in a pollution state, and detecting that a fresh air system is started, ending the process; if the fresh air system is not started, a prompt of high carbon dioxide concentration is automatically pushed through the mobile phone APP, and fresh air is recommended to be started or window ventilation is recommended; detecting user feedback, and when the user selects to ignore the message, no reminding is performed within 24 h; when the fresh air is selected to be opened, the fresh air system is opened; when it is detected that the user message is unread, the reminder is pushed 1 time every 30 minutes. Or the fresh air conditioner can be controlled to start the fresh air system automatically.
Detecting carbon dioxide concentration when the power-on state or indoor environment is <50 ℃, and when detecting: when the carbon dioxide concentration is greater than 5000ppm, detecting the indoor temperature, when the environmental temperature is greater than 45 ℃, automatically pushing a message through a mobile phone APP to remind a user that the indoor environment is abnormal and fire hidden danger exists, then detecting user feedback, and when the user reads, no reminding is performed within 24 hours; and when the user is unread, 1 prompt is pushed every 1min until the user processes the early warning information, and the prompt is not given.
When the environmental temperature is lower than 45 ℃, judging that the indoor environment is in a pollution state, detecting that a fresh air system is started, and ending the process; if the fresh air system is not started, a prompt of high carbon dioxide concentration is automatically pushed through the mobile phone APP, and fresh air is recommended to be started or window ventilation is recommended; detecting user feedback, and when the user selects to ignore the message, no reminding is performed within 24 h; when the fresh air is selected to be opened, the fresh air system is opened; when it is detected that the user message is unread, the reminder is pushed 1 time every 30 minutes. Or the fresh air conditioner can be controlled to start the fresh air system automatically.
The invention also provides a fresh air conditioner, comprising: a carbon dioxide detection module for detecting the indoor carbon dioxide concentration Cco2(ii) a The temperature detection module comprises an indoor temperature detection module for detecting indoor temperature and an outdoor temperature detection module for detecting outdoor temperature; the calculation module is used for calculating a temperature difference value, a temperature rising rate and a carbon dioxide concentration rising rate; and the control module is used for executing the fresh air conditioner control method according to the detection results of the carbon dioxide detection module and the temperature detection module and the calculation result of the calculation module.
As shown in fig. 2, preferably, the fresh air system 11 is located at a side portion of the indoor unit 10, and after the system is turned on, fresh air at an outdoor side enters an indoor side through an air outlet of the fresh air system 11, so that a concentration of carbon dioxide is reduced, and quality of indoor air is improved. The carbon dioxide detection module 12 is disposed at the other side of the indoor unit 10, preferably located at a position close to the air inlet, and configured to monitor the concentration and the rising rate of carbon dioxide at the indoor side, and feed back the carbon dioxide to the control system. The temperature detection module comprises an indoor temperature sensing bulb arranged on the indoor unit and an outdoor temperature sensing bulb arranged on the outdoor unit, the indoor temperature sensing bulb and the outdoor temperature sensing bulb are respectively used for detecting the indoor temperature and the outdoor temperature, and the indoor temperature sensing bulb and the outdoor temperature sensing bulb of the air conditioner are used for monitoring the ambient temperature, the rising rate and the indoor and outdoor temperature difference and feeding back the ambient temperature, the rising rate and the indoor and outdoor temperature difference to the control system.
According to the invention, the carbon dioxide detection module is used for detecting the indoor carbon dioxide concentration and is connected with the mobile terminal, and when the indoor carbon dioxide concentration is higher and the environment causes people to generate discomfort, the fresh air early warning is automatically pushed and started; when the indoor carbon dioxide concentration is too high or the indoor temperature is abnormal, and the fire hidden danger exists, the fire risk early warning prompt is automatically pushed, or the fire alarm is opened, and the user is reminded of the existence of the potential safety hazard. The two parameters are combined to detect the indoor environment, so that the detection precision is improved, the judgment comprehensiveness is ensured, and the situations of missed judgment and erroneous judgment are avoided. The single definition of the traditional fresh air system is broken, the fresh air system is enabled to carry a fire early warning function, the functions of the air conditioner are diversified, and the air conditioner is more informationalized and intelligentized.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (11)

1. A control method of a fresh air conditioner is provided with a carbon dioxide detection module and a temperature detection module, and is characterized by comprising the following steps:
obtaining the indoor carbon dioxide concentration Cco2Indoor ambient temperature TIndoor useOutdoor ambient temperature TOutdoorsComprehensively analyzing and judging whether fire hazard exists in the indoor environment state based on the indoor carbon dioxide concentration, the indoor environment temperature and the outdoor environment temperature, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk;
when the concentration of the indoor carbon dioxide is greater than a first concentration threshold C1The indoor environment temperature is greater than a first threshold value TChamber 1The rising rate of the indoor environment temperature is larger than the temperature rising threshold value VT1The temperature difference between the indoor environment and the outdoor environment is larger than a temperature difference threshold value delta T1, the indoor environment is judged to have fire hazard, and a fire risk early warning prompt and/or an air conditioning control suggestion aiming at the fire risk are sent out;
indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs greater than the temperature rise threshold VTThe temperature difference between the indoor environment and the outdoor environment is less than the temperature difference threshold value delta T, and the indoor carbon dioxide concentration Cco2Greater than a first concentration threshold C1Judging that the indoor environment has fire hazard, and sending out fire risk early warning prompt and/or air conditioner control suggestion aiming at the fire risk; alternatively, the first and second electrodes may be,
when the indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs greater than the temperature rise threshold VTThe temperature difference between the indoor environment and the outdoor environment is less than the temperature difference threshold value Delta T,
the concentration of the indoor carbon dioxide is less than a first concentration threshold C1But greater than the second concentration threshold C2，C1>C2Indoor carbon dioxide concentration Cco2Rate of rise greater than Vc1And judging that the indoor environment has fire hazard, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk.
2. The fresh air conditioning control method according to claim 1,
when the indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs greater than the temperature rise threshold VTAnd when the temperature difference between the indoor environment and the outdoor environment is greater than the temperature difference threshold value delta T, judging that the indoor environment has fire hazard, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk.
3. The fresh air conditioning control method according to claim 1,
indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs less than the temperature rise threshold VTThe temperature difference between the indoor environment and the outdoor environment is greater than the temperature difference threshold value delta T, and the indoor carbon dioxide concentration Cco2Greater than a first concentration threshold C1Judging that the indoor environment has fire hazard, and sending out fire risk early warning prompt and/or air conditioner control suggestion aiming at the fire risk; alternatively, the first and second electrodes may be,
when the indoor ambient temperature TIndoor useGreater than a first temperature threshold T1, indoor ambient temperature TIndoor useIs less than the temperature rise threshold VTThe temperature difference between the indoor environment and the outdoor environment is larger than the temperature difference threshold value delta T,
the concentration of the indoor carbon dioxide is less than a first concentration threshold C1But greater than the second concentration threshold C2，C1>C2Indoor carbon dioxide concentration Cco2Rate of rise greater than Vc1And judging that the indoor environment has fire hazard, and sending out a fire risk early warning prompt and/or an air conditioner control suggestion aiming at the fire risk.
4. The fresh air conditioning control method according to claim 3,
when the concentration of the indoor carbon dioxide is less than a second concentration threshold C2But greater than a third concentration threshold C3When the indoor air is judged to be in a pollution state, the fresh air system is controlled to start, and/or an air pollution prompt is sent,
wherein, C1＞C2＞C3。
5. The fresh air conditioning control method according to claim 3,
when the concentration of the indoor carbon dioxide is less than a first concentration threshold C1But greater than the second concentration threshold C2，C1>C2Indoor carbon dioxide concentration Cco2Rate of rise less than Vc1And when the indoor air is judged to be in a pollution state, the fresh air system is controlled to start, and/or an air pollution prompt is sent.
6. The fresh air conditioning control method according to claim 1,
when the air conditioner is in the power-on state and the indoor environment temperature TIndoor useWhen the indoor carbon dioxide concentration Cco is less than the first temperature threshold value T1, if the indoor carbon dioxide concentration Cco is detected2Greater than a fourth concentration threshold C4Continuously judging the indoor environment temperature TIndoor useWhether greater than a second temperature threshold T2, wherein T1>T2；
If TIndoor use>And T2, judging that the indoor environment has fire hazard, and sending out a fire risk early warning prompt and/or an air conditioning control suggestion aiming at the fire risk.
7. The fresh air conditioning control method according to claim 6,
when the indoor carbon dioxide concentration Cco2Greater than a second concentration threshold C2But less than a third concentration threshold C3And when the indoor air is judged to be in a pollution state, the fresh air system is controlled to start, and/or an air pollution prompt is sent.
8. The fresh air conditioning control method according to claim 6,
when the indoor carbon dioxide concentration Cco2Greater than a third concentration threshold C3But less than a fourth concentration threshold C4And the rising rate of the carbon dioxide concentration is less than Vc1And when the indoor air is judged to be in a pollution state, the fresh air system is controlled to start, and/or an air pollution prompt is sent.
9. The fresh air conditioner control method according to any one of claims 4, 5, 7 and 8, wherein the fire risk early warning prompt and the air pollution prompt are sent by a fresh air conditioner and/or a mobile terminal connected with the fresh air conditioner.
10. A fresh air conditioner is characterized by comprising:
the carbon dioxide detection module is used for detecting the concentration of indoor carbon dioxide;
the temperature detection module comprises an indoor temperature detection module for detecting indoor temperature and an outdoor temperature detection module for detecting outdoor temperature;
the calculation module is used for calculating a temperature difference value, a temperature rising rate and a carbon dioxide concentration rising rate;
the control module is used for executing the fresh air conditioner control method according to any one of claims 1 to 9 according to the detection results of the carbon dioxide detection module and the temperature detection module and the calculation result of the calculation module.
11. The fresh air conditioner according to claim 10, further comprising a mobile terminal, wherein the mobile terminal is configured to send out warning information and/or input a control instruction for the fresh air conditioner.
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