Control method of range hood, range hood and computer readable storage medium

Abstract

The invention relates to the technical field of range hoods, and discloses a control method of a range hood, the range hood and a computer readable storage medium, the control method of the range hood comprises the following steps: obtaining the working state of the range hood; if the range hood starts to work, the oil smoke concentration of the range hood is obtained; acquiring an accumulated oil smoke concentration value according to the oil smoke concentration; and judging whether an oil cup of the range hood needs to be cleaned according to the accumulated oil smoke concentration value. According to the control method of the range hood, the accumulated oil smoke concentration value is obtained through the oil smoke concentration, whether the oil cup needs to be cleaned or not is intelligently judged through the accumulated oil smoke concentration value, and whether the oil cup needs to be cleaned or not can be accurately judged without directly measuring the liquid level of the oil cup; therefore, low-cost and high-precision oil cup liquid level detection is realized, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of range hood, in particular to a control method of range hood, range hood and computer readable storage medium. BACKGROUND

[0002] The range hood is an essential household appliance in the kitchen. When the oil cup of the range hood contains a large amount of oil, the user needs to clean the oil cup in time.

[0003] In some related range hoods, a perspective window is arranged on the oil cup to show the user the liquid level in the oil cup through the perspective window, thereby reminding the user to clean. However, the addition of the perspective window increases the structural cost and is not conducive to the overall aesthetics of the range hood. Therefore, some range hoods cancel the perspective window, and the user needs to actively disassemble the oil cup to check the oil cup liquid level, resulting in poor user experience. SUMMARY

[0004] Therefore, the present application provides a control method of range hood, range hood and computer readable storage medium to solve the problems of increasing structural cost and affecting aesthetics of the oil cup with a perspective window, and poor user experience of the oil cup without a perspective window.

[0005] In a first aspect, the present application provides a control method of range hood, comprising:

[0006] obtaining the working state of the range hood;

[0007] if the range hood starts to work, obtaining the oil fume concentration of the range hood;

[0008] obtaining the cumulative oil fume concentration value according to the oil fume concentration;

[0009] determining whether the oil cup of the range hood needs to be cleaned according to the cumulative oil fume concentration value.

[0010] Beneficial effects: the cumulative oil fume concentration value is obtained through the oil fume concentration, and then the cumulative oil fume concentration value is used to intelligently determine whether the oil cup needs to be cleaned. Without directly measuring the liquid level of the oil cup, the oil cup can be accurately determined whether it needs to be cleaned, thereby realizing low-cost and high-precision oil cup liquid level detection and improving user experience.

[0011] In an optional implementation, the determination of whether the oil cup of the range hood needs to be cleaned according to the cumulative oil fume concentration value comprises:

[0012] determining whether the cumulative oil fume concentration value exceeds a preset threshold value;

[0013] if the preset threshold value is exceeded, the oil cup liquid level of the oil cup exceeds a preset liquid level, and the oil cup needs to be cleaned.

[0014] If the preset threshold is not exceeded, the oil cup liquid level of the oil cup does not exceed the preset liquid level, and the oil cup does not need to be cleaned.

[0015] Beneficial effects: According to the specific conditions of the oil cup such as the capacity of the oil cup, the preset liquid level of the oil cup liquid level is set, the preset threshold of the cumulative oil fume concentration value is set in the experimental process and the actual use process, the preset liquid level and the preset threshold are considered in linkage, when the cumulative oil fume concentration value exceeds the preset threshold, it is considered that the oil cup liquid level of the oil cup exceeds the preset liquid level, at this time, the oil liquid in the oil cup is more and needs to be cleaned, so as to avoid the oil liquid in the oil cup from overflowing; when the cumulative oil fume concentration value does not exceed the preset threshold, it is considered that the oil cup liquid level does not exceed the preset liquid level, at this time, the oil liquid in the oil cup can be temporarily cleaned.

[0016] In an optional embodiment, the cumulative oil fume concentration value is obtained according to the oil fume concentration, comprising:

[0017] The cumulative oil fume concentration value is calculated by a weighted average method.

[0018] Beneficial effects: The cumulative oil fume concentration value is calculated by the weighted average method, which improves the accuracy and practicability of the cumulative oil fume concentration value, and provides a more reliable data basis for the judgment, analysis and control of whether the oil cup needs to be cleaned. The cumulative oil fume concentration value is calculated by the weighted average method, which can comprehensively consider the oil fume concentration data at different time points and their importance, avoid the sensitivity problem of simple average method to abnormal values, make the cumulative oil fume concentration value more consistent with the actual situation, reduce the influence of instantaneous fluctuation or noise data, make the cumulative value smoother, reduce the risk of misjudgment, and improve the reliability of the monitoring system.

[0019] In an optional embodiment, the calculation formula of the cumulative oil fume concentration value is:

[0020] C total = i＝1 ∑ n w i ·C i ;

[0021] Wherein, C total is the cumulative oil fume concentration value, w i is the weight coefficient of the i th data point, and C i is the oil fume concentration at the i th time point.

[0022] Beneficial effects: The cumulative oil fume concentration value is calculated by the above calculation formula, which improves the accuracy and practicability of the cumulative oil fume concentration value, and provides a more reliable data basis for the judgment, analysis and control of whether the oil cup needs to be cleaned.

[0023] In an alternative embodiment, the cumulative oil fume concentration value is calculated by a weighted average method, comprising:

[0024] The weight coefficient is dynamically adjusted according to the change trend of the oil fume concentration.

[0025] Beneficial effect: The weight coefficient is dynamically adjusted according to the change trend of the oil fume concentration, which can improve the accuracy of judging the oil cup liquid level.

[0026] In an alternative embodiment, further comprising:

[0027] If the oil cup of the range hood needs cleaning, the range hood sends a reminder to the user to clean the oil cup.

[0028] When the oil cup of the range hood needs cleaning, a reminder is sent to the user to clean the oil cup, so that the user can timely disassemble the oil cup to clean the oil.

[0029] In a second aspect, the present application also provides a range hood, comprising:

[0030] A range hood body;

[0031] An oil cup detachably connected to the range hood body;

[0032] A liquid level detection system comprising a concentration detection module, a data processing module and a liquid level judgment module, the concentration detection module being arranged on the range hood body for real-time acquisition of the oil fume concentration of the range hood; the data processing module being used for obtaining a cumulative oil fume concentration value according to the oil fume concentration; the liquid level judgment module being used for judging whether the oil cup of the range hood needs cleaning according to the cumulative oil fume concentration value; the liquid level detection system being used for executing the control method of the range hood described above.

[0033] Beneficial effect: Through the arrangement of the liquid level detection system, the oil fume concentration of the range hood can be monitored in real time by the concentration detection module when the range hood is working, the cumulative oil fume concentration value can be obtained by the data processing module according to the oil fume concentration, and the oil cup of the range hood can be intelligently judged by the liquid level judgment module according to the cumulative oil fume concentration value. Without directly measuring the liquid level of the oil cup, the oil cup cleaning can be accurately judged, so as to realize low-cost and high-precision oil cup liquid level detection and improve user experience. The oil fume concentration is a direct indicator that can reflect the specific situation of oil fume. When the oil fume concentration is high, the oil accumulated in the oil cup is more, and when the oil fume concentration is low, the oil accumulated in the oil cup is less. Therefore, in this embodiment, whether the oil cup needs cleaning is judged according to the cumulative oil fume concentration value, the oil fume concentration during each use of the range hood is accumulated, different oil fume situations are comprehensively considered, the influence of different oil fume situations on the judgment of whether the oil cup needs cleaning is avoided, and the judgment result is more accurate.

[0034] In one alternative implementation, the concentration detection module includes an oil fume sensor.

[0035] Beneficial effects: The oil fume sensor can directly obtain the oil fume concentration, which facilitates subsequent judgment based on the oil fume concentration.

[0036] In one optional embodiment, the fume sensor is a photoelectric fume sensor.

[0037] Beneficial effects: The photoelectric fume sensor has high sensitivity and stability, and can effectively cope with changes in the composition of oil fumes under different cooking conditions.

[0038] In one alternative implementation, the liquid level detection system further includes a prompting module for reminding the user to clean the oil cup.

[0039] Beneficial effects: When the cumulative oil fume concentration exceeds the preset threshold, it is considered that the oil level in the oil cup exceeds the preset level. At this time, there is too much oil in the oil cup and it needs to be cleaned to prevent the oil from overflowing. At this time, the level detection system will remind the user to clean the oil cup through the prompt module so that the user can disassemble the oil cup in time to clean the oil.

[0040] Thirdly, the present invention also provides a computer-readable storage medium storing computer instructions, which, when executed, implement the above-described control method for a range hood.

[0041] Beneficial effects: The computer-readable storage medium provided by the present invention, through the control method of the range hood using the above-described embodiments, has all the technical effects of the control method of the range hood described above. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the first step in the control method of a range hood according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of a second process for a control method of a range hood according to an embodiment of the present invention;

[0045] Figure 3A third flowchart of a control method of an extractor hood according to an embodiment of the present application;

[0046] Figure 4 A fourth flowchart of a control method of an extractor hood according to an embodiment of the present application;

[0047] Figure 5 A fifth flowchart of a control method of an extractor hood according to an embodiment of the present application;

[0048] Figure 6 A sixth flowchart of a control method of an extractor hood according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0050] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0053] In related range hood, a perspective window is arranged on the oil cup to show the liquid level in the oil cup to the user through the perspective window, thereby reminding the user to clean. However, the increase of the perspective window increases the structure cost and is not conducive to the overall aesthetics of the range hood. Therefore, the perspective window is cancelled in some range hoods, and the user needs to actively disassemble the oil cup to check the oil cup liquid level, resulting in poor user experience.

[0054] Embodiments of the present application will be described below in conjunction with Figures 1 to 6

[0055] According to an embodiment of the present application, on the one hand, a control method of a range hood is provided, comprising:

[0056] S1, obtaining the working state of the range hood; the working state of the range hood includes working, standby and stopping running and the like.

[0057] S2, if the range hood starts to work, obtaining the oil fume concentration of the range hood.

[0058] S3, obtaining the cumulative oil fume concentration value according to the oil fume concentration.

[0059] S4, judging whether the oil cup of the range hood needs to be cleaned according to the cumulative oil fume concentration value.

[0060] The cumulative oil fume concentration value is obtained through the oil fume concentration, and the intelligent judgment of whether the oil cup needs to be cleaned is performed through the cumulative oil fume concentration value. Without directly measuring the liquid level of the oil cup, the accurate judgment of whether the oil cup needs to be cleaned can be performed, thereby realizing the low-cost and high-precision oil cup liquid level detection and improving the user experience.

[0061] The oil fume concentration is a direct index that can reflect the specific situation of oil fume. When the oil fume concentration is high, the oil liquid accumulated in the oil cup is more, and when the oil fume concentration is low, the oil liquid accumulated in the oil cup is less. Therefore, in the embodiment, whether the oil cup of the range hood needs to be cleaned is judged according to the cumulative oil fume concentration value, and the oil fume concentration during each use of the range hood is accumulated, different oil fume situations are fully considered, the influence of different oil fume situations on the judgment of whether the oil cup needs to be cleaned is avoided, and the judgment result is more accurate.

[0062] In the embodiment, the cumulative oil fume concentration value is obtained through the oil fume concentration, and the intelligent judgment of whether the oil cup needs to be cleaned is performed through the cumulative oil fume concentration value. Without setting a perspective window to check the oil cup liquid level, the structure cost is saved, and the overall aesthetics of the range hood is not damaged. The user does not need to actively disassemble the oil cup to check the oil cup liquid level, and the user experience is improved.

[0063] ​In related parts of the range hood, the method of detecting whether the oil cup is full by the sensor generally detects by infrared emission and reflection principle, detects by weighing detection and other means. The above methods all need to increase the sensor on the oil cup, which is relatively complex in structure and increases the cost. In the embodiment, the cumulative oil fume concentration value is obtained by the oil fume concentration, and the oil cup needs to be cleaned is intelligently judged by the cumulative oil fume concentration value. The oil cup needs to be cleaned is accurately judged without detecting whether the oil cup is full by the sensor, so as to realize the low-cost and high-precision oil cup liquid level detection, improve the user experience, and have wide application range without too many improvements of the range hood.

[0064] In related parts of the range hood, the method of judging whether the oil cup is full by the cumulative time of the range hood operating gear size. However, the accuracy of this method is low, the habits of users are different, and the wind stop and the oil fume concentration do not have linearity in different user sites. The judgment and prompt of whether the oil cup is full at the end will be inaccurate due to the different oil fume amount generated by each start of the range hood and the different selection of the wind stop. In the embodiment, the cumulative oil fume concentration value is obtained by the oil fume concentration, and the oil cup needs to be cleaned is intelligently judged by the cumulative oil fume concentration value. The oil fume concentration is a direct index that can reflect the specific situation of the oil fume when the range hood is started each time. When the oil fume concentration is high, the oil liquid accumulated in the oil cup is more, and when the oil fume concentration is low, the oil liquid accumulated in the oil cup is less. Therefore, the judgment method of the application is more intelligent and accurate, realizes the low-cost and high-precision oil cup liquid level detection, and improves the user experience.

[0065] In one embodiment, the judgment of whether the oil cup of the range hood needs to be cleaned according to the cumulative oil fume concentration value comprises:

[0066] S41, judging whether the cumulative oil fume concentration value exceeds a preset threshold value.

[0067] S42, if the preset threshold value is exceeded, the oil cup liquid level of the oil cup exceeds a preset liquid level, and the oil cup needs to be cleaned.

[0068] S43, if the preset threshold value is not exceeded, the oil cup liquid level of the oil cup does not exceed the preset liquid level, and the oil cup does not need to be cleaned.

[0069] The preset liquid level of the oil cup liquid level is set according to the specific situation of the oil cup such as the capacity of the oil cup. The preset threshold value of the cumulative oil fume concentration value is set in the experimental process and the actual use process. The preset liquid level and the preset threshold value are considered in linkage. When the cumulative oil fume concentration value exceeds the preset threshold value, it is considered that the oil cup liquid level of the oil cup exceeds the preset liquid level. At this time, the oil liquid in the oil cup is relatively more and needs to be cleaned to avoid the oil liquid in the oil cup from overflowing. When the cumulative oil fume concentration value does not exceed the preset threshold value, it is considered that the oil cup liquid level does not exceed the preset liquid level. At this time, the oil liquid in the oil cup can be temporarily not cleaned.

[0070] In specific embodiments, the preset threshold value can also be dynamically adjusted according to the use habits of the user and the change trend of the oil fume concentration, and the preset liquid level is also adjusted correspondingly according to the adjustment of the preset threshold value to adapt to the actual needs of different users.

[0071] In one embodiment, the cumulative oil fume concentration value is obtained according to the oil fume concentration, comprising:

[0072] S31, calculating the cumulative oil fume concentration value by weighted average method.

[0073] The cumulative oil fume concentration value is calculated by the weighted average method, which improves the accuracy and practicability of the cumulative oil fume concentration value, and provides a more reliable data basis for the judgment, analysis and control of whether the oil cup needs to be cleaned. By calculating the cumulative oil fume concentration value by the weighted average method, the oil fume concentration data at different time points and their importance can be considered comprehensively, avoiding the sensitivity problem of simple average method to abnormal values, so that the cumulative oil fume concentration value is more in line with the actual situation; It can also reduce the influence of instantaneous fluctuation or noise data, make the cumulative value smoother, reduce the risk of misjudgment, and improve the reliability of the monitoring system.

[0074] In one embodiment, the calculation formula of the cumulative oil fume concentration value is:

[0075] C total = i＝1 ∑ n w i ·C i ;

[0076] Wherein, C total is the cumulative oil fume concentration value, w i is the weight coefficient of the i-th data point, and C i is the oil fume concentration at the i-th time point.

[0077] The cumulative oil fume concentration value is calculated by the above calculation formula, which improves the accuracy and practicability of the cumulative oil fume concentration value, and provides a more reliable data basis for the judgment, analysis and control of whether the oil cup needs to be cleaned.

[0078] In specific embodiments, if the cumulative oil fume concentration value C total is less than or equal to the preset threshold value T, it is considered that the liquid level in the oil cup has not reached the preset liquid level, and the oil cup does not need to be cleaned, and the oil fume concentration of the oil fume machine is continued to be monitored. If the cumulative oil fume concentration value C total is greater than the preset threshold value T, it is considered that the liquid level in the oil cup has reached the preset liquid level, and the user needs to clean the oil cup.

[0079] Further, the preset threshold value can be dynamically adjusted according to actual use. In a specific embodiment, the preset threshold value is 1000, and when the accumulated oil fume concentration value exceeds 1000 units, it is considered that the liquid level in the oil cup reaches the preset liquid level, and a reminder needs to be sent to the user to clean the oil cup.

[0080] In an embodiment, the accumulated oil fume concentration value is calculated by a weighted average method, comprising:

[0081] S311, dynamically adjusting the weight coefficient according to the change trend of the oil fume concentration.

[0082] Dynamically adjusting the weight coefficient according to the change trend of the oil fume concentration can improve the accuracy of judging the liquid level of the oil cup.

[0083] Specifically, when adjusting the weight coefficient, the current fan gear of the range hood, the current environmental temperature, and other conditions such as experimental data can be used as input conditions for dynamic adjustment. Further, the lower the fan gear of the range hood, the more oil fumes remain inside the range hood. The lower the environmental temperature, the more oil fumes are likely to condense into oil droplets, and the more residual oil in the oil cup.

[0084] In an embodiment, further comprising:

[0085] S5, if the oil cup of the range hood needs to be cleaned, the range hood sends a reminder to the user to clean the oil cup.

[0086] When the oil cup of the range hood needs to be cleaned, a reminder is sent to the user to clean the oil cup, so that the user can timely disassemble the oil cup to clean the oil.

[0087] Specifically, in an embodiment, the way the range hood sends a reminder to the user to clean the oil cup includes sound and light reminders, specifically including: the range hood sends a sound alarm that the oil cup needs to be cleaned, and the LED indicator light flashes to remind the user to clean the oil cup.

[0088] As a convertible embodiment, the way the range hood sends a reminder to the user to clean the oil cup can also include only sound reminders, specifically: the range hood sends a sound alarm that the oil cup needs to be cleaned.

[0089] As a convertible embodiment, the way the range hood sends a reminder to the user to clean the oil cup can also include only light reminders, specifically including: the LED indicator light flashes to remind the user to clean the oil cup.

[0090] Specifically, in another embodiment, the way that the range hood sends a reminder to the user to clean the oil cup includes APP push on a mobile terminal, specifically including: connecting the mobile terminal and the range hood through Wi-Fi, the system pushes the prompt information to the mobile terminal, the user can check at any time and take action, improving convenience and intelligent level. Further, the mobile terminal can be a mobile terminal such as a mobile phone, a PAD or a smart watch.

[0091] Specifically, in another embodiment, the way that the range hood sends a reminder to the user to clean the oil cup includes voice broadcast, specifically including: broadcasting the prompt information that the oil cup liquid level is high through the voice module built-in the range hood, prompting the user to clean the oil cup in time, to improve user experience.

[0092] In a specific embodiment, the way that the range hood sends a reminder to the user to clean the oil cup includes: sound and light reminders, APP push on a mobile terminal and voice broadcast, and the priority of which way to send a reminder to the user to clean the oil cup can be adjusted according to the user's settings, for example, APP push on a mobile terminal is used preferentially during working hours, and voice broadcast is used preferentially during rest time.

[0093] According to the embodiment of the present application, on the other hand, a range hood is also provided, including a range hood body, an oil cup and a liquid level detection system; the oil cup is detachably connected to the range hood body; the liquid level detection system includes a concentration detection module, a data processing module and a liquid level judgment module, the concentration detection module is arranged on the range hood body, for real-time acquisition of the oil smoke concentration of the range hood; the data processing module is used to acquire the cumulative oil smoke concentration value according to the oil smoke concentration; the liquid level judgment module is used to judge whether the oil cup of the range hood needs to be cleaned according to the cumulative oil smoke concentration value; the liquid level detection system is used to execute the control method of the range hood described above.

[0094] By setting the liquid level detection system, the oil fume concentration of the range hood can be monitored in real time by the concentration detection module when the range hood is working, the cumulative oil fume concentration value can be obtained by the data processing module according to the oil fume concentration, and the oil cup of the range hood can be intelligently judged by the liquid level judgment module according to the cumulative oil fume concentration value. Without directly measuring the liquid level of the oil cup, it can also accurately judge whether the oil cup needs to be cleaned, thereby realizing low-cost and high-precision oil cup liquid level detection and improving user experience. The oil fume concentration is a direct indicator that can reflect the specific situation of the oil fume. When the oil fume concentration is high, the oil accumulated in the oil cup is more, and when the oil fume concentration is low, the oil accumulated in the oil cup is less. Therefore, in the embodiment, whether the oil cup of the range hood needs to be cleaned is judged according to the cumulative oil fume concentration value, and the oil fume concentration during each use of the range hood is accumulated, different oil fume situations are fully considered, the influence of different oil fume situations on the judgment of whether the oil cup needs to be cleaned is avoided, and the judgment result is more accurate.

[0095] In a further embodiment, the control method of the range hood executed by the liquid level detection system comprises:

[0096] S1, obtaining the working state of the range hood; the working state of the range hood includes working, standby and stopping running and the like.

[0097] S2, if the range hood starts to work, the oil fume concentration of the range hood is obtained.

[0098] S3, the cumulative oil fume concentration value is obtained according to the oil fume concentration.

[0099] S4, whether the oil cup of the range hood needs to be cleaned is judged according to the cumulative oil fume concentration value.

[0100] S5, if the oil cup of the range hood needs to be cleaned, the range hood is controlled to remind the user to clean the oil cup.

[0101] Among them, whether the oil cup of the range hood needs to be cleaned according to the cumulative oil fume concentration value comprises:

[0102] S41, judging whether the cumulative oil fume concentration value exceeds a preset threshold.

[0103] S42, if the preset threshold is exceeded, the oil cup liquid level of the oil cup exceeds the preset liquid level, and the oil cup needs to be cleaned.

[0104] S43, if the preset threshold is not exceeded, the oil cup liquid level of the oil cup does not exceed the preset liquid level, and the oil cup does not need to be cleaned.

[0105] The preset threshold value can also be dynamically adjusted according to the use habits of the user and the change trend of the oil fume concentration, and the preset liquid level is also adjusted correspondingly according to the adjustment of the preset threshold value to adapt to the actual needs of different users. Specifically, the installation position of the concentration detection module and the selection of the concentration detection module are inconsistent with the oil fume concentration index coefficient, which will cause the cumulative oil fume concentration value to be inconsistent, and at this time, the preset threshold value needs to be adjusted accordingly. In addition, the size of the oil cup capacity is inconsistent, which will also cause the cumulative oil fume concentration value to be inconsistent, and at this time, the preset threshold value needs to be adjusted accordingly.

[0106] Specifically, the data processing module also stores the cumulative oil fume concentration value in the local storage, and can selectively upload the data to the cloud for subsequent analysis and optimization of the cumulative oil fume concentration value.

[0107] In one embodiment, the concentration detection module includes an oil fume sensor.

[0108] The oil fume sensor can directly obtain the oil fume concentration, and then facilitate subsequent judgment by the oil fume concentration.

[0109] In one embodiment, the oil fume sensor is a photoelectric oil fume sensor.

[0110] The photoelectric oil fume sensor has high sensitivity and stability, and can effectively cope with the change of oil fume composition under different cooking conditions.

[0111] In further embodiments, attention should be paid to avoid light interference for the photoelectric oil fume sensor to ensure the measurement accuracy of the photoelectric oil fume sensor for the oil fume concentration.

[0112] In one embodiment, the liquid level detection system further includes a prompt module for reminding the user to clean the oil cup.

[0113] When the cumulative oil fume concentration value exceeds the preset threshold value, it is considered that the oil cup liquid level of the oil cup exceeds the preset liquid level, and at this time, the oil liquid in the oil cup is relatively more and needs to be cleaned to avoid the oil liquid in the oil cup from overflowing, at this time, the liquid level detection system reminds the user to clean the oil cup through the prompt module, so that the user can timely disassemble the oil cup to clean the oil liquid.

[0114] In a specific embodiment, the prompt module includes an alarm, and the prompt module issues a sound alarm through the alarm to remind the user to clean the oil cup.

[0115] In another specific embodiment, the prompt module includes an LED indicator light, and the prompt module flashes the LED indicator light to remind the user to clean the oil cup.

[0116] Specifically, in another embodiment, the prompt module is connected with an APP on the mobile terminal through Wi-Fi, the prompt module pushes the prompt information to the mobile terminal, and the user can check and take action at any time.Further, the mobile terminal can be a mobile terminal such as a mobile phone, a PAD or a smart watch.

[0117] Specifically, in another embodiment, the prompt module further comprises a voice module, the prompt module plays the prompt information that the oil cup liquid level is high through the voice module built in the range hood, and prompts the user to clean the oil cup in time to improve the user experience.

[0118] According to the embodiment of the present application, in yet another aspect, a computer readable storage medium is provided, the computer readable storage medium stores computer instructions, when the computer instructions are executed, the control method of the range hood described above is implemented.

[0119] The computer readable storage medium provided by the present application has all the technical effects of the control method of the range hood described above by adopting the control method of the range hood.

[0120] In a further embodiment, the control method of the range hood executed by the liquid level detection system comprises:

[0121] S1, obtaining the working state of the range hood; the working state of the range hood comprises working, standby and stopping running and the like.

[0122] S2, if the range hood starts to work, obtaining the oil fume concentration of the range hood.

[0123] S3, obtaining the cumulative oil fume concentration value according to the oil fume concentration.

[0124] S4, judging whether the oil cup of the range hood needs to be cleaned according to the cumulative oil fume concentration value.

[0125] S5, if the oil cup of the range hood needs to be cleaned, controlling the range hood to send a prompt to the user to clean the oil cup.

[0126] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the present application.

Claims

1. A control method of an extractor hood, characterized in that, The method comprises: acquiring a working state of the range hood; if the range hood starts to work, acquiring a concentration of oil fume of the range hood; acquiring a cumulative concentration value of oil fume according to the concentration of oil fume; judging whether the oil cup of the range hood needs to be cleaned according to the cumulative concentration value of oil fume.

2. The control method of the range hood according to claim 1, characterized in that, The judging whether the oil cup of the range hood needs to be cleaned according to the cumulative concentration value of oil fume comprises: judging whether the cumulative concentration value of oil fume exceeds a preset threshold value; if the cumulative concentration value of oil fume exceeds the preset threshold value, an oil cup liquid level of the oil cup exceeds a preset liquid level, and the oil cup needs to be cleaned; if the cumulative concentration value of oil fume does not exceed the preset threshold value, the oil cup liquid level of the oil cup does not exceed the preset liquid level, and the oil cup does not need to be cleaned.

3. The control method of the range hood according to claim 1, characterized in that, The acquiring a cumulative concentration value of oil fume according to the concentration of oil fume comprises: calculating the cumulative concentration value of oil fume by a weighted average method.

4. The control method of the range hood according to claim 3, characterized in that, The calculation formula of the cumulative concentration value of oil fume is: C total = i＝1 ∑ n w i ·C i ; wherein C total is the cumulative oil fume concentration value, w i is the weight coefficient of the i-th data point, C i is the oil fume concentration at the i-th time point.

5. The control method of the range hood according to claim 4, characterized in that, The calculating the cumulative concentration value of oil fume by the weighted average method comprises: dynamically adjusting the weight coefficient according to a change trend of the concentration of oil fume.

6. The control method of a range hood according to any one of claims 1 to 5, characterized by, The method further comprises: if the oil cup of the range hood needs to be cleaned, controlling the range hood to send a cleaning reminder of the oil cup to a user.

7. A range hood characterized by The range hood comprises: a range hood body; an oil cup, which is detachably connected to the range hood body; a liquid level detection system, which comprises a concentration detection module, a data processing module and a liquid level judgment module, the concentration detection module is arranged on the range hood body and is used to acquire a concentration of oil fume of the range hood in real time, the data processing module is used to acquire a cumulative concentration value of oil fume according to the concentration of oil fume, and the liquid level judgment module is used to judge whether the oil cup of the range hood needs to be cleaned according to the cumulative concentration value of oil fume; and the liquid level detection system is used to execute the control method of the range hood in any one of claims 1 to 6.

8. The range hood according to claim 7, characterized in that The concentration detection module comprises an oil fume sensor.

9. The range hood according to claim 8, characterized in that The oil fume sensor is a photoelectric oil fume sensor.

10. The range hood according to any one of claims 7 to 9, characterized in that, The liquid level detection system further comprises a prompt module, which is used to send a reminder of cleaning the oil cup to a user.

11. A computer readable storage medium, characterized in that, The computer readable storage medium stores computer instructions, when the computer instructions are executed, the control method of the range hood in any one of claims 1 to 6 is implemented.

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