Anti-negative pressure linkage control method and system
Through the anti-negative pressure linkage control method and system, the negative pressure situation in the kitchen is identified and responded to the negative pressure situation in the kitchen, and the ventilation action is performed by controlling the doors and windows, problems such as insufficient air replenishment and floor drain reversal caused by negative pressure in the kitchen are solved, improving the user experience.
Patent Information
- Application Number
- CN202411499880.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-02-25
AI Technical Summary
When using a range hood or integrated stove in the kitchen, long-term smoking causes negative pressure to form in the kitchen, causing many problems, such as insufficient kitchen air replenishment, floor drain reversal, unclean gas passing through doors and windows, etc.
The anti-negative pressure linkage control method and system are adopted to obtain the air pressure parameters inside and outside the target area, calculate the pressure difference parameters, and compare them with the preset negative pressure division standard threshold. If the negative pressure conditions are met, the pressure difference parameters will be displayed through the acousto-optical interactive unit, and the pressure difference parameters will be responded to according to the multi-mode linkage logic, for example, the doors and windows will be controlled to perform ventilation actions to improve the negative pressure situation.
Effectively identify and inform users of the negative pressure in the kitchen, improve negative pressure in the kitchen by linking other electric structures, reduce problems such as floor drain reversal and door and window gaps, and improve user experience.
Smart Images
Figure CN119511743A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of kitchen and bathroom control technology, and in particular to a negative pressure prevention linkage control method and system. Background Art
[0002] In order to ensure clean air in the living room and other areas during home cooking, most families currently choose to install a range hood / integrated stove in the kitchen. The range hood will draw a lot of air from the kitchen for a long time, which will cause negative pressure when the kitchen air is insufficient. When negative pressure is formed in the kitchen, it will cause many problems, for example:
[0003] 1. There is a probability that the kitchen floor drain will replenish air into the kitchen in reverse, resulting in unclean gas in the kitchen;
[0004] 2. The air passes through the kitchen doors and windows quickly, with a fast flow rate, causing howling.
[0005] The situation caused by the above-mentioned negative pressure becomes more severe as the performance of the range hood / integrated stove improves, resulting in a rapid increase in the number and frequency of affected users, affecting the user experience. Therefore, this application proposes a new technical solution. Summary of the invention
[0006] In order to improve the user experience of range hoods, the present application provides an anti-negative pressure linkage control method and system.
[0007] In a first aspect, the present application provides a negative pressure prevention linkage control method, which adopts the following technical solution:
[0008] A negative pressure prevention linkage control method, comprising:
[0009] Get the air pressure parameters inside and outside the target area space, and define them as and ;
[0010] Calculate differential pressure parameters , ;
[0011] The pressure difference parameter Compare with the pre-established negative pressure classification standard threshold to obtain a comparison result; and,
[0012] If the comparison result meets the preset negative pressure condition and the current pressure difference parameter Compared with the parameters of the previous sampling, the pre-connected sound and light interaction unit is based on the current pressure difference parameters. Display and respond to pressure difference parameters according to multi-mode linkage logic ;
[0013] Wherein, the multi-mode linkage suppression logic includes:
[0014] If no linkage condition is preset, the calculated pressure difference parameter is returned. ;as well as,
[0015] If linkage conditions are set, the pre-connected doors and / or windows will be instructed to perform ventilation actions.
[0016] Optionally, obtain the air pressure parameters outside the target area space , which includes:
[0017] Get the position parameters of the target area space;
[0018] Get the current altitude parameters based on the location parameters through online retrieval and outdoor temperature ;
[0019] Calculated according to the formula , ;in, is the standard atmospheric pressure at sea level, is the preset temperature lapse rate, is the absolute temperature, is the acceleration due to gravity, is the molar mass of air, is the preset universal gas constant.
[0020] Optionally, obtain the air pressure parameters in the target area space , which includes: obtaining air pressure parameters based on an air pressure detection unit preset in the target area space .
[0021] Optionally, there are multiple negative pressure division standard thresholds, and the divided pressure difference forms multiple negative pressure levels, and the multi-mode linkage suppression logic performs corresponding ventilation actions according to the negative pressure levels.
[0022] Optionally, the negative pressure level includes severe negative pressure, moderate negative pressure and mild negative pressure, and the multi-mode linkage suppression logic performs corresponding ventilation actions according to the negative pressure level, including:
[0023] Optionally, if the current pressure is severe negative, both the door and the window are allowed to perform ventilation, the door is allowed to perform ventilation and the opening degree is standard parameter 1, or the window is allowed to perform ventilation and the opening degree is standard parameter 2;
[0024] If the current pressure is moderate negative, the door is allowed to perform ventilation and the opening degree is standard parameter 3, or the window is allowed to perform ventilation and the opening degree is standard parameter 4; wherein standard parameter 3 is less than standard parameter 1, and standard parameter 4 is less than standard parameter 2;
[0025] If the current condition is mild, the window is allowed to perform ventilation and the opening degree is parameter five; wherein parameter five is smaller than parameter four.
[0026] Optionally, the multi-mode linkage suppression logic further includes:
[0027] Obtain weather data for the target area based on the current location parameters;
[0028] If the weather data indicates that it is currently raining and the rainfall level exceeds the preset rainfall standard threshold, the window ventilation action is stopped or the window is allowed to perform ventilation action and the opening degree is standard parameter six; wherein, standard parameter six ≤ standard parameter five.
[0029] Optionally, it also includes: if the weather data includes wind data, and the wind level exceeds the preset strong wind level, searching the preset pressure difference interference database according to the wind data to determine the interference data, and correcting the air pressure parameters according to the interference data .
[0030] In a second aspect, the present application provides an anti-negative pressure linkage control system, which adopts the following technical solution:
[0031] A negative pressure prevention linkage control system comprises a memory and a processor, wherein the memory stores a computer program which can be loaded and executed by the processor to implement any of the negative pressure prevention linkage control methods described above.
[0032] In summary, this application includes the following beneficial technical effects:
[0033] 1. Identify and inform the user of negative pressure during use;
[0034] 2. Focusing on the range hood / integrated stove, linking other electric structures to improve the smart kitchen design;
[0035] 3. Detect negative pressure in time and prompt the user to manually or automatically link other structures to improve the negative pressure in the kitchen, reduce problems such as air backflow from floor drains and whistling from door and window gaps. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 It is a schematic diagram of the main process of the method of the present application;
[0037] Figure 2 It is a flow chart of the application for obtaining outdoor air pressure parameters. DETAILED DESCRIPTION
[0038] The following is combined with Figure 1-2 This application is described in further detail.
[0039] The embodiment of the present application discloses a negative pressure prevention linkage control method.
[0040] Reference Figure 1 , the anti-negative pressure linkage control method includes:
[0041] S11. Obtain the air pressure parameters inside and outside the target area space, and define them as and .
[0042] In this embodiment, the target area space refers to the kitchen, and should have a door and window structure that can be opened and closed electrically.
[0043] S12. Calculate pressure difference parameters , It should be noted that under normal circumstances ≥ If > If the situation is not favorable, it can be judged as suspected equipment failure or abnormal weather.
[0044] S13, the pressure difference parameter The negative pressure is compared with the pre-established negative pressure classification standard threshold to obtain a comparison result.
[0045] S14. If the comparison result meets the preset negative pressure condition, for example, the pressure difference parameter Greater than 0 or the maximum allowable error parameter, and the current pressure difference parameter Compared with the parameters of the previous sampling, that is, the pressure difference changes compared with the previous one, the pre-connected sound and light interaction unit is based on the current pressure difference parameters Display and respond to pressure difference parameters according to multi-mode linkage logic .
[0046] In the context of the present application being based on a range hood and an integrated stove, the above-mentioned sound and light interaction unit may be a display screen of the range hood and the integrated stove.
[0047] The above multi-mode linkage suppression logic includes:
[0048] If the linkage condition is not preset, that is, the user has not made an automatic linkage selection in advance, in this case, if the aforementioned pressure difference changes, the calculated pressure difference parameters will be returned. , users ignore the manual opening and closing of doors and windows to alleviate the negative pressure in the kitchen.
[0049] If linkage conditions are set, the pre-connected doors and / or windows will be ordered to perform ventilation actions, that is, the (electric) doors and / or windows will be controlled to open.
[0050] Based on the above, this method can:
[0051] 1. Identify and inform the user of negative pressure during use;
[0052] 2. Focusing on the range hood / integrated stove, linking other electric structures to improve the smart kitchen design;
[0053] 3. Detect negative pressure in time and prompt the user to manually or automatically link other structures to improve the negative pressure in the kitchen, reduce problems such as air backflow from floor drains and whistling from door and window gaps.
[0054] In one embodiment of the method, the air pressure parameters in the target area space are obtained. , which includes: obtaining air pressure parameters based on an air pressure detection unit preset in the target area space .
[0055] Example: An air pressure sensor integrated in a range hood / integrated stove is used as an air pressure detection unit to detect the air pressure data in the kitchen.
[0056] Reference Figure 2 In one embodiment of the method, the air pressure parameters outside the target area space are obtained. , which includes:
[0057] S21. Obtain the location parameters of the target area space; example: add a GPS positioning module or Beidou positioning module to the range hood / integrated stove to obtain the location parameters; or, communicate and network to determine the location of the area through the base station positioning method; or, the user actively uploads.
[0058] S22, obtain the current altitude parameter through online retrieval based on the location parameter and outdoor temperature .
[0059] S23, calculated according to the formula , ;in, is the standard atmospheric pressure at sea level (1013.25 hPa), is the preset temperature lapse rate (e.g., 0.0065 K / m, which can be determined based on the manufacturer's verification of the temperature in various places). is the absolute temperature, is the acceleration due to gravity, is the molar mass of air, is the preset universal gas constant. It is known that ,by =20℃ as an example, .
[0060] According to the above, this method does not require the user to install a temperature sensor or an air pressure sensor outdoors to analyze and obtain the required air pressure parameters. .
[0061] In one embodiment of the present method, when the range hood is turned on for smoking in the kitchen, the air pressure in the kitchen will form a negative pressure. When the negative pressure value is not large, the effect on smoking and other side effects of negative pressure are not large. For this reason, a trial test is conducted in the laboratory to detect the effect of smoking and other side effects of negative pressure under different negative pressure values. According to the evaluation results, multiple negative pressure division standard thresholds are set, and the pressure difference is divided to form multiple negative pressure levels, for example: two thresholds, forming three levels of severe negative pressure, moderate negative pressure, and mild negative pressure.
[0062] On the basis of the above, in one embodiment of the present method, the multi-mode linkage suppression logic performs corresponding ventilation actions according to the negative pressure level, specifically:
[0063] If the current negative pressure is severe, both the door and the window are allowed to perform ventilation action, the door is allowed to perform ventilation action (ie, open the door) and the opening degree is standard parameter one, or the window is allowed to perform ventilation action (ie, open the window) and the opening degree is standard parameter two.
[0064] If the current negative pressure is moderate, the door is allowed to perform ventilation and the opening degree is standard parameter three, or the window is allowed to perform ventilation and the opening degree is standard parameter four; wherein, standard parameter three is smaller than standard parameter one, and standard parameter four is smaller than standard parameter two.
[0065] If the current condition is mild, the window is allowed to perform ventilation and the opening degree is parameter 5; wherein parameter 5 is less than parameter 4.
[0066] Taking the opening degree of doors and windows as 0-100% as an example, the above-mentioned parameters are values between 0-100%, and the specific values can be set by the staff and users. According to the above settings, this method can respond to different negative pressure conditions with different door and window opening methods. On the one hand, it makes the opening and closing of doors and windows more reasonable to avoid the situation where doors and windows are opened too much; on the other hand, it can ensure that when one of the doors and windows fails, this method can still improve the negative impact of negative pressure.
[0067] In another embodiment of the method, the multi-mode linkage suppression logic further includes:
[0068] Obtain weather data for the target area based on the current location parameters; for example, search for local weather forecasts and real-time weather data on the Internet.
[0069] If the weather data indicates that it is currently raining and the rainfall level exceeds the preset rainfall standard threshold (such as moderate rain), the window ventilation action is stopped or the window ventilation action is performed and the opening degree is standard parameter six; among which, standard parameter six ≤ standard parameter five.
[0070] Under the above settings, if it rains outdoors and it is quite heavy, this method will consider not solving the negative pressure problem by opening the windows, or will reduce the degree of opening of the windows to reduce the chance of outdoor rain entering the room and improve the user experience.
[0071] In another embodiment of the method, if the weather data includes wind data, and the wind level exceeds the preset strong wind level, the preset pressure difference interference database is searched according to the wind data to determine the interference data, and the air pressure parameter is corrected according to the interference data. .
[0072] Take a typhoon as an example. If the local area is in the center of a typhoon, the outdoor air pressure will be lower than normal. At this time, if the air pressure is calculated using the altitude analysis method mentioned above, there will be errors. Therefore, the calculated air pressure parameters need to be Eliminate the low-pressure interference at the center of the typhoon to improve the control accuracy of door and window openings. Low-pressure interference data is measured by the manufacturer on site and entered into the preset database for use.
[0073] In summary, this method can be used to improve the negative problems caused by the negative pressure generated by the suction of range hoods and integrated stoves.
[0074] The embodiment of the present application also discloses a negative pressure prevention linkage control system.
[0075] The negative pressure prevention linkage control system includes a memory and a processor, wherein the memory stores a computer program that can be loaded and executed by the processor to implement any of the negative pressure prevention linkage control methods described above.
[0076] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A negative pressure prevention linkage control method, characterized in that: include: Get the air pressure parameters inside and outside the target area space, and define them as and ; Calculate differential pressure parameters , ; The pressure difference parameter Compare with the pre-established negative pressure classification standard threshold to obtain a comparison result; as well as, If the comparison result meets the preset negative pressure condition and the current pressure difference parameter Compared with the parameters of the previous sampling, the pre-connected sound and light interaction unit is based on the current pressure difference parameters. Display and respond to pressure difference parameters according to multi-mode linkage logic ; Wherein, the multi-mode linkage suppression logic includes: If no linkage condition is preset, the calculated pressure difference parameter is returned. ;as well as, If linkage conditions are set, the pre-connected doors and / or windows will be instructed to perform ventilation actions.
2. The negative pressure prevention linkage control method according to claim 1, characterized in that: Get the air pressure parameters outside the target area space , which includes: Get the position parameters of the target area space; Get the current altitude parameters based on the location parameters through online retrieval and outdoor temperature ; Calculated according to the formula , ;in, is the standard atmospheric pressure at sea level, is the preset temperature lapse rate, is the absolute temperature, is the acceleration due to gravity, is the molar mass of air, is the preset universal gas constant.
3. The negative pressure prevention linkage control method according to claim 1, characterized in that: Get the air pressure parameters in the target area space , which includes: obtaining air pressure parameters based on an air pressure detection unit preset in the target area space .
4. The negative pressure prevention linkage control method according to claim 1, characterized in that: There are multiple negative pressure division standard thresholds, and the pressure difference is divided to form multiple negative pressure levels. The multi-mode linkage suppression logic performs corresponding ventilation actions according to the negative pressure levels.
5. The negative pressure prevention linkage control method according to claim 4, characterized in that: The negative pressure levels include severe negative pressure, moderate negative pressure and mild negative pressure. The multi-mode linkage suppression logic performs corresponding ventilation actions according to the negative pressure levels, including: If the current pressure is severe negative, the door and window are both allowed to perform ventilation, the door is allowed to perform ventilation and the opening degree is standard parameter 1, or the window is allowed to perform ventilation and the opening degree is standard parameter 2; If the current pressure is moderate negative, the door is allowed to perform ventilation and the opening degree is standard parameter 3, or the window is allowed to perform ventilation and the opening degree is standard parameter 4; wherein standard parameter 3 is less than standard parameter 1, and standard parameter 4 is less than standard parameter 2; If the current condition is mild, the window is allowed to perform ventilation and the opening degree is parameter five; wherein parameter five is smaller than parameter four.
6. The negative pressure prevention linkage control method according to claim 5, characterized in that: The multi-mode linkage suppression logic further includes: Obtain weather data for the target area based on the current location parameters; If the weather data indicates that it is currently raining and the rainfall level exceeds the preset rainfall standard threshold, the window ventilation action is stopped or the window is allowed to perform ventilation action and the opening degree is standard parameter six; wherein, standard parameter six ≤ standard parameter five.
7. The negative pressure prevention linkage control method according to claim 6, characterized in that: Also includes: If the weather data includes wind data, and the wind level exceeds the preset strong wind level, the preset pressure difference interference database is searched according to the wind data to determine the interference data, and the air pressure parameters are corrected according to the interference data. .
8. A negative pressure prevention linkage control system, characterized in that: It comprises a memory and a processor, wherein the memory stores a computer program that can be loaded and executed by the processor to implement the negative pressure prevention linkage control method as described in any one of claims 1-7.