Ventilation control method and system based on state of range hood

Abstract

The invention relates to a ventilation control method and system based on the state of a range hood, and relates to the technical field of ventilation. The method comprises the following steps: starting an indoor ventilation mode at regular time according to a preset ventilation time period; according to the preset high-temperature and high-humidity time period, the indoor temperature and humidity are increased regularly; collecting an indoor real-time volatile organic compound concentration value set in a whole time period in real time; generating a check-in suggestion and a ventilation suggestion according to the indoor real-time volatile organic compound concentration value set; and visually displaying the indoor real-time volatile organic compound concentration value set, the check-in suggestion and the ventilation suggestion, and providing an interactive interface. According to the method, the timing on-off duration is set for the exhaust mode and the window opening mode of the range hood in the intelligent home control application, and the high-temperature and high-humidity environment is formed in the indoor space, so that the volatile organic compound removal speed of a newly decorated house is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilation and air exchange, and in particular to a ventilation and air exchange control method and system based on the state of a range hood. Background Art

[0002] Benzene and formaldehyde pollution is a common problem in newly renovated houses, because benzene and formaldehyde are organic compounds that are easily volatile at room temperature. They are widely present in various building materials, furniture, coatings, paints, adhesives and other decoration materials. Living in an environment with high concentrations of benzene and formaldehyde for a long time may cause respiratory diseases, skin allergies, nervous system damage and other problems, and even increase the risk of cancer.

[0003] In real life, after a house is renovated, many people are not able to frequently go to the new house for ventilation due to busy work or other reasons. In addition, the determination of indoor formaldehyde concentration requires that the house be sealed for 12 hours. Many people lack sufficient time to test indoor formaldehyde. Summary of the invention

[0004] Based on this, it is necessary to provide a ventilation control method and system based on the state of the range hood to address the above problems.

[0005] The present invention provides a ventilation control method based on the state of a range hood, the ventilation control method comprising:

[0006] According to the preset ventilation time period, the indoor ventilation mode is started at a fixed time, and the indoor ventilation mode includes the window opening mode and the range hood exhaust mode;

[0007] Determine a preset high temperature and high humidity time period according to a preset ventilation time period;

[0008] According to the preset high temperature and high humidity time period, the indoor temperature and humidity are increased regularly;

[0009] Real-time collection of indoor volatile organic compound concentration value sets for all time periods;

[0010] Generate occupancy recommendations and ventilation recommendations based on the indoor real-time volatile organic compound concentration value set;

[0011] The indoor real-time volatile organic compound concentration value set, the occupancy recommendation and the ventilation recommendation are visualized and an interactive interface is provided.

[0012] In one embodiment, the step of timing the indoor ventilation mode according to a preset ventilation time period includes:

[0013] Collect the air outlet area and exhaust wind speed of the range hood exhaust mode;

[0014] Collect outdoor real-time wind speed and outdoor real-time wind direction;

[0015] Based on the air outlet area and exhaust wind speed, the window opening area of ​​the window opening mode is calculated according to the outdoor real-time wind speed;

[0016] The window opening position of the window opening mode is determined according to the real-time outdoor wind direction.

[0017] In one embodiment, based on the outlet area and the exhaust wind speed, the window opening amount of the window opening mode is calculated according to the outdoor real-time wind speed and is calculated by formula A. y ×V y =A c ×V c Get, where A y is the air outlet area of ​​the range hood exhaust mode, V y is the exhaust wind speed of the range hood exhaust mode, A c is the window opening area, V y It is the real-time outdoor wind speed.

[0018] In one embodiment, the step of timing the indoor ventilation mode according to the preset ventilation time period also includes:

[0019] The outdoor real-time wind speed is compared with the wind speed of the high-speed exhaust mode of the range hood exhaust mode. If the outdoor real-time wind speed is ≤ the exhaust speed of the range hood exhaust mode, the high-speed exhaust mode of the range hood is started. If the outdoor real-time wind speed is greater than the exhaust speed of the range hood exhaust mode, the low-speed exhaust mode of the range hood is started.

[0020] In one embodiment, the step of determining the preset high temperature and high humidity time period according to the preset ventilation time period includes:

[0021] The whole time period is divided into a preset ventilation time period and a preset closed time period according to ventilation or not;

[0022] Divide the preset closed time period into two groups of sub-time periods according to the middle time point;

[0023] The sub-time period adjacent to the previous set of preset ventilation time periods is determined as the daily closed time period, and the sub-time period adjacent to the next set of preset ventilation time periods is determined as the preset high temperature and high humidity time period.

[0024] In one embodiment, the indoor real-time volatile organic compound concentration value set includes a real-time volatile organic compound concentration value set in a high temperature and high humidity environment, a real-time volatile organic compound concentration value set in a daily closed environment, and a real-time volatile organic compound concentration value set in a ventilated environment.

[0025] In one embodiment, the step of generating an occupancy recommendation based on a set of indoor real-time volatile organic compound concentration values ​​within a week includes:

[0026] If the minimum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is ≥ 0.1 mg / m 3 , then the check-in recommendation is not available;

[0027] If the minimum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is less than 0.1mg / m 3 The maximum value of the real-time volatile organic compound concentration value set in a daily closed environment is ≥ 0.05 mg / m 3 , then the check-in recommendation is not available;

[0028] If the maximum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is less than 0.1 mg / m 3 The maximum value of the real-time volatile organic compound concentration value set in a daily closed environment is less than 0.05 mg / m 3 , it is recommended to stay in a ventilated environment.

[0029] In one embodiment, the step of generating ventilation recommendations based on the indoor real-time volatile organic compound concentration value set includes:

[0030] If the minimum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is ≥ 0.1 mg / m 3 , then the ventilation recommendation is to turn on the window opening mode and exhaust mode;

[0031] If the maximum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is less than 0.1 mg / m 3 The minimum value of the real-time volatile organic compound concentration value set in a daily closed environment is ≥ 0.05 mg / m 3 , then the ventilation recommendation is to open the window mode;

[0032] If the maximum value of the real-time volatile organic compound concentration value set in a high temperature and high humidity environment and the maximum value of the real-time volatile organic compound concentration value set in a daily closed environment are both less than 0.05 mg / m 3 , then the ventilation recommendation is that no ventilation measures are required.

[0033] The present invention also provides a ventilation control system based on the range hood status, the system comprising a control module, a ventilation module, a temperature and humidity control module, a monitoring module, an analysis module and a visualization interface;

[0034] The control module is connected to the ventilation module, the temperature and humidity control module, the monitoring module, the analysis module and the visualization interface, and is used to output a control signal;

[0035] The ventilation module is used to start the indoor ventilation mode at a fixed time according to the ventilation time period preset by the control module, and the indoor ventilation mode includes a window opening mode and an exhaust mode;

[0036] The temperature and humidity control module is used to start increasing the indoor temperature and humidity according to the preset high temperature and high humidity time period of the control module, and the preset high temperature and high humidity time period is determined according to the preset ventilation time period;

[0037] The monitoring module is used to collect indoor real-time volatile organic compound concentration value sets;

[0038] The analysis module is used to generate occupancy recommendations and ventilation recommendations based on the indoor real-time volatile organic compound concentration value set;

[0039] The visualization interface is used to visualize the indoor real-time volatile organic compound concentration value set and the occupancy recommendation, and provide an interactive interface.

[0040] In one embodiment, the ventilation module includes an automatic window opener and a range hood, wherein the automatic window opener is used to open indoor windows, and the range hood is used to create negative pressure to accelerate indoor air flow.

[0041] The above-mentioned ventilation control method based on the state of the range hood achieves the timed ventilation effect of the indoor space by setting the timed switch duration for the exhaust mode and window opening mode of the range hood in the smart home control application, which is convenient for users to ventilate the newly renovated house remotely, and combines the formation of a high temperature and high humidity environment in the indoor space to accelerate the release of volatile organic compounds in indoor furniture, thereby accelerating the removal of volatile organic compounds from the newly renovated house by combining the two measures of timed ventilation and high temperature and high humidity to accelerate volatile organic compounds. At the same time, according to the real-time monitored volatile organic compound concentration value, occupancy suggestions and ventilation suggestions are automatically generated for users to refer to and adjust the ventilation mode to save house ventilation energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1A flow chart of the ventilation control method based on the range hood status proposed by the present invention;

[0044] Figure 2 This is a schematic diagram of the structure of the range hood status-based ventilation control system proposed by the present invention. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In view of the above problems, the following Figure 1-Figure 2 The present invention describes a ventilation control method and system based on the range hood status.

[0047] like Figure 1 As shown, in one embodiment, the present invention provides a ventilation control method based on the state of a range hood, the ventilation control method comprising:

[0048] Step S100, according to a preset ventilation time period, the indoor ventilation mode is regularly turned on, and the indoor ventilation mode includes a window opening mode and a range hood exhaust mode.

[0049] Step S200, determining a preset high temperature and high humidity time period according to a preset ventilation time period.

[0050] Step S300, increasing indoor temperature and humidity regularly according to a preset high temperature and high humidity time period.

[0051] Specifically, install an air conditioner and a humidifier indoors, and connect the air conditioner and the humidifier to the smart home control application via wireless connection. Change the air conditioner mode to heating and increase the heating temperature. Use the air conditioner's timing function to set the air conditioner to automatically turn on during a preset high temperature and high humidity time period. Use the humidifier's timing function to set the humidifier to automatically turn on during a preset high temperature and high humidity time period, so as to regularly heat up the room and increase the indoor humidity.

[0052] Step S400: Collect indoor real-time volatile organic compound concentration value sets for all time periods in real time.

[0053] Specifically, a volatile organic compound detector is installed in an indoor living space, and the volatile organic compound detector is connected to a smart home control application via a wireless connection to report monitoring data in real time.

[0054] It should be noted that the volatile organic compound detector is a benzene detector or a formaldehyde detector.

[0055] Step S500, generating occupancy recommendations and ventilation recommendations based on the indoor real-time volatile organic compound concentration value set.

[0056] Step S600 , visually displaying the indoor real-time volatile organic compound concentration value set, occupancy recommendations and ventilation recommendations, and providing an interactive interface.

[0057] Specifically, in the smart home application, the air conditioner and humidifier are set to automatically turn on when the preset high temperature and high humidity time period is reached, thereby increasing the indoor temperature and humidity, which is conducive to the rapid release of volatile organic compounds in indoor furniture into the indoor air. The exhaust mode of the range hood is set to high-speed exhaust mode and low-speed exhaust mode, and the range hood exhaust mode and window are set to automatically turn on when the preset ventilation time period is reached, thereby accelerating the indoor air flow and thus speeding up the discharge of indoor air containing volatile organic compounds.

[0058] In addition, a volatile organic compound detector is installed indoors to send the real-time indoor volatile organic compound concentration value to the smart home application on the mobile phone, so that users can view the real-time indoor volatile organic compound concentration value, and compare the real-time uploaded volatile organic compound concentration value with the indoor air quality standard, and then generate corresponding occupancy recommendations and ventilation recommendations, so that users can refer to the occupancy recommendations to decide whether to check in, and refer to the ventilation recommendations to adjust the settings of the indoor ventilation mode.

[0059] It should be noted that the user can adjust the preset ventilation time period according to the weather forecast.

[0060] In one embodiment, the step of timing the indoor ventilation mode according to a preset ventilation time period includes:

[0061] Step S110, collecting the air outlet area and exhaust wind speed of the range hood exhaust mode.

[0062] Specifically, the air outlet area of ​​the range hood exhaust mode is obtained by referring to the instruction manual and then inputted into the smart home application.

[0063] Step S120, collecting outdoor real-time wind speed and outdoor real-time wind direction.

[0064] Specifically, since the wind direction is single, the wind force values ​​at windows in different directions are different. Therefore, an anemometer is installed outside the center of the north-south windows to collect the outdoor real-time wind speed and wind direction in real time. The anemometer transmits the collected outdoor real-time wind direction and real-time wind speed to the smart home application. It should be noted that if the cost allows, it is preferred to install an anemometer outside each window.

[0065] Step S130, based on the air outlet area and the exhaust wind speed, the window opening area of ​​the window opening mode is calculated according to the outdoor real-time wind speed.

[0066] Step S140, determining the window opening position of the window opening mode according to the real-time outdoor wind direction.

[0067] Specifically, the window opening position is set in real time by selecting the window opposite to the wind direction to open, so as to accelerate the air flow by using the wind pressure difference. For example, if the wind blows from the north, the south window is controlled to open.

[0068] In this embodiment, based on the outlet area and exhaust wind speed, the window opening amount of the window opening mode is calculated according to the outdoor real-time wind speed by using the calculation formula A y ×V y =A c ×V c Get, where A y is the air outlet area of ​​the range hood exhaust mode, V y is the exhaust wind speed of the range hood exhaust mode, A c is the window opening area, V y It is the real-time outdoor wind speed.

[0069] In this embodiment, the step of timing the indoor ventilation mode according to the preset ventilation time period also includes:

[0070] Step S150, compare the outdoor real-time wind speed with the wind speed of the high-speed exhaust mode of the range hood exhaust mode. If the outdoor real-time wind speed is ≤ the wind speed of the high-speed exhaust mode of the range hood, start the high-speed exhaust mode of the range hood. If the outdoor real-time wind speed is greater than the wind speed of the high-speed exhaust mode of the range hood, start the low-speed exhaust mode of the range hood.

[0071] Specifically, when the outside wind speed is high, by adjusting the range hood exhaust mode to a low-speed exhaust mode, the wind speed can be reduced to save electricity consumption while ensuring the negative pressure effect of the indoor space.

[0072] In one embodiment, the step of determining the preset high temperature and high humidity time period according to the preset ventilation time period includes:

[0073] Step S210, dividing the entire time period into a preset ventilation time period and a preset closed time period according to whether ventilation is in progress or not.

[0074] Step S220: Divide the preset closed time period into two groups of sub-time periods according to the middle time points.

[0075] Specifically, in order to facilitate the detection of indoor volatile organic compound concentrations, the preset closed time period should be ≥12 hours.

[0076] Step S230, determining the sub-time period adjacent to the previous set of preset ventilation time periods as the daily closed time period, and determining the sub-time period adjacent to the next set of preset ventilation time periods as the preset high temperature and high humidity time period.

[0077] Specifically, by setting the preset high temperature and high humidity time period and the preset ventilation time period to transition in time, the volatile organic compounds accumulated in the indoor high temperature and high humidity environment can be ventilated and discharged in time.

[0078] In one embodiment, the indoor real-time volatile organic compound concentration value set includes a real-time volatile organic compound concentration value set in a high temperature and high humidity environment, a real-time volatile organic compound concentration value set in a daily closed environment, and a real-time volatile organic compound concentration value set in a ventilated environment.

[0079] Specifically, the real-time volatile organic compound concentration value set in a high temperature and high humidity environment is obtained by collecting data within a preset high temperature and high humidity time period, the real-time volatile organic compound concentration value set in a daily closed environment is obtained by collecting data within a daily closed time period, and the real-time volatile organic compound concentration value set in a ventilated environment is obtained by collecting data within a preset ventilated time period.

[0080] In this embodiment, the step of generating a check-in recommendation based on a set of indoor real-time volatile organic compound concentration values ​​within a week includes:

[0081] Step S510: If the minimum value of the real-time volatile organic compound concentration value set under the high temperature and high humidity environment is ≥ 0.1 mg / m 3 , then the check-in recommendation is not available.

[0082] Step S520: If the minimum value of the real-time volatile organic compound concentration value set under the high temperature and high humidity environment is less than 0.1 mg / m 3 The maximum value of the real-time volatile organic compound concentration value set in a daily closed environment is ≥ 0.05 mg / m 3 , then the check-in recommendation is not available.

[0083] Step S530: If the maximum value of the real-time volatile organic compound concentration value set under the high temperature and high humidity environment is less than 0.1 mg / m 3 The maximum value of the real-time volatile organic compound concentration value set in a daily closed environment is less than 0.05 mg / m3 , it is recommended to stay in a ventilated environment.

[0084] Specifically, according to the Indoor Air Quality Standard GB / T 18883-2002, after closing doors and windows for 12 hours, the concentration of volatile organic compounds should be less than 0.1 mg / m 3 To be qualified, the concentration of volatile organic compounds under daily temperature and humidity should be much lower than the standard value, such as 0.05mg / m 3 to ensure a safe and healthy living environment.

[0085] In this embodiment, the step of generating ventilation suggestions according to the indoor real-time volatile organic compound concentration value set includes:

[0086] If the minimum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is ≥ 0.1 mg / m 3 , then the ventilation recommendation is to turn on the window opening mode and exhaust mode.

[0087] If the maximum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is less than 0.1 mg / m 3 The minimum value of the real-time volatile organic compound concentration value set in a daily closed environment is ≥ 0.05 mg / m 3 , then the ventilation recommendation is to turn on the window mode.

[0088] It should be noted that although the concentration of volatile organic compounds in high temperature and high humidity environments has not reached the critical value, the concentration of volatile organic compounds in daily closed environments is relatively high, and it is still necessary to open windows to reduce the concentration of volatile organic compounds.

[0089] If the maximum value of the real-time volatile organic compound concentration value set in a high temperature and high humidity environment and the maximum value of the real-time volatile organic compound concentration value set in a daily closed environment are both less than 0.05 mg / m 3 , then the ventilation recommendation is that no ventilation measures are required.

[0090] like Figure 2 As shown, in one embodiment, the present invention also provides a ventilation control system based on the range hood status, the system comprising a control module, a ventilation module, a temperature and humidity control module, a monitoring module, an analysis module and a visualization interface.

[0091] The control module 10 is connected with the ventilation module 20, the temperature and humidity control module 30, the monitoring module 40, the analysis module 5 and the visualization interface 60, and is used to output control signals.

[0092] The ventilation module 20 is used to start the indoor ventilation mode at a fixed time according to the ventilation time period preset by the control module 10. The indoor ventilation mode includes a window opening mode and an exhaust mode.

[0093] The temperature and humidity control module 30 is used to start increasing the indoor temperature and humidity according to the preset high temperature and high humidity time period of the control module 10, and the preset high temperature and high humidity time period is determined according to the preset ventilation time period.

[0094] The monitoring module 40 is used to collect a set of real-time volatile organic compound concentration values ​​indoors.

[0095] The analysis module 50 is used to generate occupancy recommendations and ventilation recommendations based on the real-time indoor volatile organic compound concentration value set.

[0096] The visualization interface 60 is used to visualize the indoor real-time volatile organic compound concentration value set and occupancy recommendations, and provide an interactive interface.

[0097] In this embodiment, the ventilation module 20 includes an automatic window opener 202 and a range hood 204. The automatic window opener 202 is used to open indoor windows, and the range hood 204 is used to form negative pressure to accelerate indoor air flow.

[0098] It should be noted that the automatic window opener 202 and the range hood 204 are both existing devices that support the smart home protocol.

[0099] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0100] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A ventilation control method based on the state of a range hood, characterized in that: The ventilation control method comprises: According to the preset ventilation time period, the indoor ventilation mode is started at a fixed time, and the indoor ventilation mode includes the window opening mode and the range hood exhaust mode; Determine a preset high temperature and high humidity time period according to a preset ventilation time period; According to the preset high temperature and high humidity time period, the indoor temperature and humidity are increased regularly; Real-time collection of indoor volatile organic compound concentration value sets for all time periods; Generate occupancy recommendations and ventilation recommendations based on the indoor real-time volatile organic compound concentration value set; The indoor real-time volatile organic compound concentration value set, the occupancy recommendation and the ventilation recommendation are visualized and an interactive interface is provided.

2. The ventilation control method based on the range hood status according to claim 1, characterized in that: The steps of timing the indoor ventilation mode according to the preset ventilation time period include: Collect the air outlet area and exhaust wind speed of the range hood exhaust mode; Collect outdoor real-time wind speed and outdoor real-time wind direction; Based on the air outlet area and exhaust wind speed, the window opening area of ​​the window opening mode is calculated according to the outdoor real-time wind speed; The window opening position of the window opening mode is determined according to the real-time outdoor wind direction.

3. The ventilation control method based on the range hood status according to claim 2, characterized in that: Based on the outlet area and exhaust wind speed, the window opening amount of the window opening mode is calculated according to the outdoor real-time wind speed through the calculation formula A y ×V y =A c ×V c Get, where A y is the air outlet area of ​​the range hood exhaust mode, V y is the exhaust wind speed of the range hood exhaust mode, A c is the window opening area, V y It is the real-time outdoor wind speed.

4. The ventilation control method based on the range hood status according to claim 2, characterized in that: The step of timing the indoor ventilation mode according to the preset ventilation time period also includes: The outdoor real-time wind speed is compared with the wind speed of the high-speed exhaust mode of the range hood exhaust mode. If the outdoor real-time wind speed is ≤ the exhaust speed of the range hood exhaust mode, the high-speed exhaust mode of the range hood is started. If the outdoor real-time wind speed is greater than the exhaust speed of the range hood exhaust mode, the low-speed exhaust mode of the range hood is started.

5. The ventilation control method based on range hood status according to claim 1, characterized in that: The step of determining the preset high temperature and high humidity time period according to the preset ventilation time period comprises: The whole time period is divided into a preset ventilation time period and a preset closed time period according to ventilation or not; Divide the preset closed time period into two groups of sub-time periods according to the middle time point; The sub-time period adjacent to the previous set of preset ventilation time periods is determined as the daily closed time period, and the sub-time period adjacent to the next set of preset ventilation time periods is determined as the preset high temperature and high humidity time period.

6. The ventilation control method based on range hood status according to claim 1, characterized in that: The indoor real-time volatile organic compound concentration value set includes a real-time volatile organic compound concentration value set in a high temperature and high humidity environment, a real-time volatile organic compound concentration value set in a daily closed environment, and a real-time volatile organic compound concentration value set in a ventilated environment.

7. The ventilation control method based on the range hood status according to claim 6, characterized in that: The steps for generating occupancy recommendations based on a set of real-time indoor volatile organic compound concentration values ​​within a week include: If the minimum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is ≥ 0.1 mg / m 3 , then the check-in recommendation is not available; If the minimum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is less than 0.1mg / m 3 The maximum value of the real-time volatile organic compound concentration value set in a daily closed environment is ≥ 0.05 mg / m 3 , then the check-in recommendation is not available; If the maximum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is less than 0.1 mg / m 3 The maximum value of the real-time volatile organic compound concentration value set in a daily closed environment is less than 0.05 mg / m 3 , it is recommended to stay in a ventilated environment.

8. The method for controlling ventilation based on the range hood status according to claim 6, characterized in that: The step of generating ventilation recommendations according to the indoor real-time volatile organic compound concentration value set comprises: If the minimum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is ≥ 0.1 mg / m 3 , then the ventilation recommendation is to turn on the window opening mode and exhaust mode; If the maximum value of the real-time volatile organic compound concentration value set under high temperature and high humidity environment is less than 0.1 mg / m 3 The minimum value of the real-time volatile organic compound concentration value set in a daily closed environment is ≥ 0.05 mg / m 3 , then the ventilation recommendation is to open the window mode; If the maximum value of the real-time volatile organic compound concentration value set in a high temperature and high humidity environment and the maximum value of the real-time volatile organic compound concentration value set in a daily closed environment are both less than 0.05 mg / m 3 , then the ventilation recommendation is that no ventilation measures are required.

9. A ventilation control system based on the state of a range hood, applicable to the ventilation control method based on the state of a range hood according to any one of claims 1 to 9, characterized in that: The system includes a control module, a ventilation module, a temperature and humidity control module, a monitoring module, an analysis module and a visualization interface; The control module is connected to the ventilation module, the temperature and humidity control module, the monitoring module, the analysis module and the visualization interface, and is used to output a control signal; The ventilation module is used to start the indoor ventilation mode at a fixed time according to the ventilation time period preset by the control module, and the indoor ventilation mode includes a window opening mode and an exhaust mode; The temperature and humidity control module is used to start increasing the indoor temperature and humidity according to the preset high temperature and high humidity time period of the control module, and the preset high temperature and high humidity time period is determined according to the preset ventilation time period; The monitoring module is used to collect indoor real-time volatile organic compound concentration value sets; The analysis module is used to generate occupancy recommendations and ventilation recommendations based on the indoor real-time volatile organic compound concentration value set; The visualization interface is used to visualize the indoor real-time volatile organic compound concentration value set and the occupancy recommendation, and provide an interactive interface.

10. The ventilation control system based on the range hood status according to claim 9, characterized in that: The ventilation module includes an automatic window opener and a range hood, wherein the automatic window opener is used to open indoor windows, and the range hood is used to form negative pressure to accelerate indoor air flow.

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