Control method of range hood with purification function

Abstract

The invention discloses a control method of a range hood with a purification function, and the control method is characterized in that the range hood has a learning mode, when the range hood runs, a main control module obtains cooking time period preference information of a user, and forms a first preference time period T11, a second preference time period T12 and a third preference time period T13 according to the obtained cooking time period preference information; starting an air quality detection module by the main control module at a time point of which the time length is T from the beginning of each preference time period, so as to enable the air quality detection module to detect the air quality; compared with the prior art, the control method of the range hood with the purification function has the advantages that the first preference time period T11, the second preference time period T12 and the third preference time period T13 which are formed through the learning mode are time periods with relatively high user habits or cooking frequency, so that the pertinence is high; and the kitchen air quality can reach the standard when a user enters a kitchen to start cooking operation.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and in particular to a control method for a range hood with a purification function. Background Art

[0002] The range hood is a kitchen appliance that purifies the kitchen environment. It can quickly remove the waste from stove combustion and the fumes generated during cooking and discharge them outdoors, reduce pollution, and purify the air. In order to provide users with a healthy cooking environment, the desired state is usually that when users enter the kitchen to cook, the air quality in the kitchen meets the health standards. However, the actual situation is that the public flue of commercial housing may have fumes backflow, or the fumes from the neighbor's kitchen may drift into the kitchen, so that when users enter the kitchen to start cooking, the air they inhale may be polluted air. Summary of the invention

[0003] The object of the present invention is to provide a control method for a range hood with a purification function, which is used to solve the above-mentioned technical problems.

[0004] A control method for a range hood with a purification function, the range hood comprises a main control module, an air quality detection module and a purification module, the control method comprising: the range hood has a learning mode, when the range hood is in operation, the main control module records the time points of N times the user starts the range hood and the time points of turning off the range hood corresponding to the time points, so as to obtain the user's cooking period preference information, and forms a first preference time period T11, a second preference time period T12 and a third preference time period T13 according to the obtained cooking period preference information, wherein the first preference time period T11 corresponds to the breakfast cooking time period, the second preference time period T12 corresponds to the lunch cooking time period, and the third preference time period T13 corresponds to the dinner cooking time period; at a time point T from the start of each time period, the main control module starts the air quality detection module to detect the air quality, if the air quality detected by the air quality detection module does not meet the standard, the main control module starts the purification module to purify the kitchen air; if the air quality detected by the air quality detection module meets the standard, the main control module enables the air quality detection module to detect the air quality once every waiting time t1 until the corresponding time period is entered or the air quality does not meet the standard, wherein t1<T.

[0005] According to one embodiment of the present invention, the range hood also includes a WiFi module, which is used to connect to the user's router. After the WiFi module is connected to the user's router, the main control module can identify the date information of the user's location and record the user's actual cooking time period when the date corresponds to the weekend; after obtaining the user's M weekend cooking time period preference information, a first weekend preference time period T31, a second weekend preference time period T32 and a third weekend preference time period T33 are formed for the weekend, and based on this preference time period, at a time point T away from the start of each weekend preference time period, the main control module starts the air quality detection module to detect the air quality. If the air quality detected by the air quality detection module is not up to standard, the main control module starts the purification module to purify the kitchen air; if the air quality detected by the air quality detection module is up to standard, the main control module enables the air quality detection module to detect the air quality once every waiting time t1 until entering the corresponding time period or the air quality is not up to standard, wherein t1<T.

[0006] According to one embodiment of the present invention, the range hood has an initial mode. In the initial mode, the range hood has a first initial preference time period T01, a second initial preference time period T02 and a third initial preference time period T03. At a time point T away from the start of each time period, the main control module starts the air quality detection module to detect the air quality. If the air quality detected by the air quality detection module does not meet the standard, the main control module starts the purification module to purify the kitchen air; if the air quality detected by the air quality detection module meets the standard, the main control module makes the air quality detection module wait for a period of t1 and then detect the air quality again until entering the corresponding time period, wherein t1<T; when the main control module records the time points when the user starts the range hood N times and the time points when the range hood is turned off corresponding to the time points, the range hood replaces the time period set in the initial mode with the preference time period formed by the learning mode.

[0007] According to one embodiment of the present invention, the range hood also includes a WiFi module, which is used to connect to the user's router. After the WiFi module is connected to the user's router, the main control module can identify the user's location. The range hood also has an adaptation mode. When the WiFi module is connected to the user's router and the main control module identifies the user's location and the time information of the location, the main control module determines the local user's general cooking habits based on the location information of the range hood. If the time period corresponding to the local general cooking habits is significantly different from the initial time period set in the initial mode, the main control module forms a first debugging time period T21, a second debugging time period T22 and a third debugging time period T23 based on the time period corresponding to the general cooking habits of the user's location, and at a time point T before the start of each time period, the main control module starts the air quality detection module to detect the air quality.

[0008] According to one embodiment of the present invention, after the main control module records the time points at which the user starts the range hood N times and the time points at which the range hood is turned off corresponding to those time points, the range hood uses the preference time period formed by the learning mode to replace the debugging time period produced by the main control module according to the general cooking habits of the user's location.

[0009] According to one embodiment of the present invention, in the learning mode, the main control module divides the first preference time period T11 corresponding to the breakfast cooking time period into n1 first hour periods in chronological order, divides the second preference time period T12 corresponding to the lunch cooking time period into n2 second hour periods in chronological order, and divides the third preference time period T13 corresponding to the dinner cooking time period into n3 third hour periods in chronological order, and counts the frequency of the range hood being turned on in each hour period, eliminates the small time periods that are relatively early in the corresponding cooking time period and have a low frequency of being turned on, and eliminates the small time periods that are relatively late in the corresponding cooking time period and have a low frequency of being turned on, to obtain the first preference time period T11, the second preference time period T12 and the third preference time period T13.

[0010] According to one embodiment of the present invention, the main control module of the range hood repeatedly learns, and after completing a learning mode and forming the first preference time period T11, the second preference time period T12 and the third preference time period T13, the range hood uses the corresponding preference time period as the time basis for purifying the air in advance, and at the same time, each time the user turns on and off the range hood, the main control module continues to record the time points of the user's subsequent N times of starting the range hood and the time points of turning off the range hood corresponding to the time points, forming a new preference time period, and replacing the original preference time period with the new preference time period.

[0011] According to one embodiment of the present invention, when the purification module is started and purifies the kitchen air, the air quality detection module detects the air quality in real time until the air quality reaches the standard, then the purification module is turned off, the air quality detection module is turned off, and waits for the user to perform cooking operations.

[0012] According to one embodiment of the present invention, if the purification module has completed the purification operation and the time has entered the preferred time period, but the user still has not started the range hood, the main control module will enable the air quality detection module to detect the air quality once every waiting time t1 until the user starts the range hood or the corresponding time period ends.

[0013] According to one embodiment of the present invention, when the purification module is performing a purification operation, if the corresponding time period ends, the purification module will be closed after completing the purification operation; when the purification module is performing a purification operation, if the user starts the range hood, the purification module will be closed.

[0014] Compared with the prior art, the control method of the range hood with purification function of the present invention has the following advantages:

[0015] The control method of the range hood with purification function of the present invention forms the first preference time period T11, the second preference time period T12 and the third preference time period T13 through the learning mode, which are time periods when users are accustomed to or when cooking occurs frequently. It is highly targeted and can ensure that the kitchen air quality meets the standard when the user enters the kitchen and starts cooking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A system block diagram of a control method for a range hood with a purification function according to the present invention;

[0017] Figure 2 A data flow chart of a control method of a range hood with a purification function according to the present invention;

[0018] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0020] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0023] The present invention discloses a control method for a range hood with a purification function. Figure 1 and Figure 2 The range hood includes a main control module, an air quality detection module and a purification module. The main control module is the control module of the range hood. The main control module can obtain the air quality data of the kitchen through the air quality detection module and can control the working state of the air quality detection module. The main control module can control the working state of the purification module. The control method is that the range hood has a learning mode. When the range hood is running, the main control module records the time points of the user starting the range hood N times and the time points of shutting down the range hood corresponding to the time points, so as to obtain the user's cooking period preference information, and form a first preference time period T11, a second preference time period T12 and a third preference time period T13 according to the obtained cooking period preference information. The first preference time period T11, the second preference time period T12 and the third preference time period T13 are formed. The preferred time period T11 corresponds to the breakfast cooking time period, the second preferred time period T12 corresponds to the lunch cooking time period, and the third preferred time period T13 corresponds to the dinner cooking time period; at a time point T away from the start of each time period, the main control module starts the air quality detection module to detect the air quality. If the air quality detected by the air quality detection module is not up to standard, the main control module starts the purification module to purify the kitchen air; if the air quality detected by the air quality detection module is up to standard, the main control module enables the air quality detection module to detect the air quality once every waiting time t1 until entering the corresponding time period, or the air quality is not up to standard, where t1<T.

[0024] In the control method of the range hood with purification function of the present invention, the main control module records the time point each time the user starts the range hood and the shutdown time period corresponding to the time point, and after recording N times, obtains the user's cooking time period preference information, and forms a first preference time period T11 corresponding to the breakfast cooking time period, a second preference time period T12 corresponding to the lunch cooking time period, and a third preference time period T13 corresponding to the dinner time period, and at a time point T away from the start of each time period, the main control module starts the air quality detection module to detect the air quality, and starts the purification module when the air quality does not meet the standard, so that the purification module purifies the kitchen air in advance before the user enters the kitchen to perform cooking operations, and when the user enters the kitchen to perform cooking operations, the kitchen air quality meets the health standards.

[0025] The control method of the range hood with purification function of the present invention forms the first preference time period T11, the second preference time period T12 and the third preference time period T13 through the learning mode, which are time periods when users are accustomed to or when cooking occurs frequently. It is highly targeted and can ensure that the kitchen air quality meets the standard when the user enters the kitchen and starts cooking.

[0026] The control method of the range hood with purification function of the present invention is that at a time point T from the start of each time period, if the air quality detection module detects that the air quality meets the standard, the air quality detection module will detect the air quality once every waiting time t1 to ensure that the kitchen air quality meets the standard when the user enters the kitchen to start cooking. That is to say, when the air quality detection module detects that the air quality meets the standard at a time point T from the start of each time period, the air quality detection module is turned off and waits for a time t1 before starting again to detect the air quality. If the air quality does not meet the standard, the purification module is started. If the air quality still meets the standard, the air quality detection module will be turned off again and wait for a time t1 before starting again to detect the air quality. This cycle is repeated until the time T ends, the time enters the corresponding cooking time period, or until the air quality detection module detects that the air quality does not meet the standard.

[0027] The control method of the range hood with purification function of the present invention is that when the purification module is started and the kitchen air is purified, the air quality detection module detects the air quality in real time, until the air quality reaches the standard, the purification module is turned off, the air quality detection module is turned off, and the user is waiting for cooking. Because the purification module detects that the air quality does not reach the standard, the air pollution situation is inconsistent each time, so the purification time of the purification module is not convenient to set. When the purification module is started and the air is purified, the air quality detection module detects the air quality in real time. When the air quality detection module detects that the air quality reaches the standard, the main control module turns off the purification module, and the air quality detection module can also be turned off at the same time.

[0028] In the control method of the range hood with purification function of the present invention, the air quality detection module can adopt a PM2.5 detection module, the PM2.5 detection module detects the concentration value of PM2.5 or the content of PM2.5 in the air, and the main control module sets the maximum PM2.5 concentration or PM2.5 content when the air quality meets the standard. When the PM2.5 detection module detects that the concentration value of PM2.5 in the air or the content of PM2.5 exceeds the standard and maintains for a certain period of time, the main control module starts the purification module to purify the air. During the purification process, the PM2.5 detection module monitors the PM2.5 concentration or PM2.5 content in the air. When the PM2.5 concentration or PM2.5 content in the air drops below the standard value and maintains for a certain period of time, the main control module determines that the purification module has completed the purification operation.

[0029] In the control method of the range hood of the present invention, if the purification module has completed the purification operation and the time has entered the preferred time period, but the user still has not started the range hood, the main control module will make the air quality detection module detect the air quality once every waiting time t1 until the user starts the range hood or the corresponding time period ends. The logic set in the main control mode is to purify the kitchen air within T time before the user starts cooking, but the time point for detecting the air quality is based on the earliest time of the corresponding preferred time period. During the preferred time period, the user may perform cooking operations. If the time interval between the time point when the user starts cooking operations and the time point after the purification module completes the purification operation is greater than T, the kitchen air may be polluted again during this time period. Therefore, after the purification module has completed the purification operation and the time has entered the preferred time period, the user still has not started the range hood, the main control module will enable the air quality detection module to detect the air quality once every waiting time t1. When the detected air quality meets the standard, the main control module will enable the air quality detection module to continue to wait for time t1 and detect the air quality again. When the air quality does not meet the standard, the main control module will enable the purification module to start again and purify the air until the user starts the range hood or the corresponding time period ends.

[0030] That is to say, the control method of the range hood with purification function of the present invention completes the air quality detection at a time point T from the start of each preferred time period, and after the air quality purification is completed, the main control module does not wait for the user to enter the cooking operation or wait for the corresponding preferred time period to end. Instead, after the purification module has completed the purification operation and waited for a time of T, it determines whether the user is cooking, and when the user does not cook in the corresponding preferred time period, the air quality detection module detects the air quality every time t1 to ensure that the kitchen air quality is up to standard when the user enters the kitchen in the corresponding preferred time period. When the corresponding preferred time period ends and the user still does not cook, the air quality detection module will be turned off and stop detecting the air quality to avoid excessive work without practical significance.

[0031] In the control method of the range hood with purification function of the present invention, when the purification module is started and the kitchen air is purified, the air quality detection module detects the air quality in real time, until the air quality reaches the standard, the purification module is turned off, the air quality detection module is turned off, and the user is waiting for cooking. This situation corresponds to the situation that the purification module has completed the purification operation and the time has entered the preferred time period, that is, at a time point T from the start of each preferred time period, the air quality detection module detects that the air quality reaches the standard, and in the next process of detecting the air quality again, the air quality does not reach the standard, and the purification module will enter the purification mode. When entering the purification mode in this situation, the time from the corresponding preferred time period may be less than the time required for the purification module to complete the purification operation, so it may happen that the purification module has not completed the purification operation, and the corresponding preferred time period ends. If this situation occurs, if the user still does not start it, the purification module will be turned off after completing the purification operation; and when the purification operation is not completed in the purification mode and the user starts the range hood, since the user has started the range hood, the exhaust fan of the range hood will suck the air in the kitchen and ventilate the kitchen. In this case, the purification module can be turned off to allow the range hood to operate normally.

[0032] In the control method of the range hood with purification function of the present invention, when the range hood is started, the air quality detection module is in the start-up state and detects the air quality in real time. When the range hood is started, the user performs cooking operations, and the air quality detection module detects the air quality and determines the smoke extraction effect of the range hood. When the air quality does not meet the standard, it means that the current operating power of the range hood is insufficient to enable the range hood to discharge the smoke out of the kitchen in time. The user can automatically choose to increase the operating power of the range hood, or directly set the corresponding control mode in the main control mode, so that the main control module can adjust the operating power of the range hood according to the air quality detected by the air quality detection module when the range hood is running. The most important thing is to increase the operating power of the range hood when the air quality does not meet the standard.

[0033] Please refer to the control method of the range hood with purification function of the present invention. Figure 1 and Figure 2The range hood also includes a WiFi module, which is used to connect to the user's router. The WiFi module can connect the range hood to the Internet, thereby obtaining relevant information such as the local time and location, and can also upload the range hood status and data to the server; after the WiFi module is connected to the user's router, the main control module can identify the date information of the user's location and record the user's actual cooking time period when the date corresponds to the weekend; after obtaining the user's M weekend cooking time period preference information, a first weekend preference time period T31, a second weekend preference time period T32 and a third weekend preference time period T33 are formed for the weekend, and based on this preference time period, at a time point T from the start of each weekend preference time period, the main control module starts the air quality detection module to detect the air quality. If the air quality detected by the air quality detection module is not up to standard, the main control module starts the purification module to purify the kitchen air; if the air quality detected by the air quality detection module is up to standard, the main control module enables the air quality detection module to detect the air quality once every waiting time t1 until entering the corresponding time period or the air quality is not up to standard, wherein t1<T. Since the user's cooking habits may be different on weekdays and weekends, for example, on weekdays due to work needs, the user is used to cooking breakfast between 6:00 and 7:00 in the morning, while the user likes to sleep in on weekends, and the cooking time of breakfast will be relatively late, which may be delayed to between 8:00 and 9:00, or even longer. If the weekend preference time period is incorporated into the preference time period, the preference time period will be lengthened, and the first preference time period T11 will be recorded as: 6:00-9:00; in this way, the range hood may detect the air quality in advance at a time point T earlier than 6:00 on weekends, but when it comes to the time period of 6:00-7:00, the user does not cook, and the main control module will make the air quality detection module detect the air quality once every waiting time t1; this causes the air quality detection module or purification module to waste operation. Therefore, the main control module records the actual cooking time period of the user when the date corresponds to the weekend, and forms the cooking time period preference information of the weekend, which can detect the air quality in advance before the user cooks, ensure that the kitchen air quality meets the standard when the user cooks, and avoid the waste of air quality detection module or purification module operation.

[0034] See also Figure 1 and Figure 2The control method of the range hood with purification function of the present invention is that the range hood has an initial mode. In the initial mode, the range hood has a first initial preference time period T01, a second initial preference time period T02 and a third initial preference time period T03. At a time point T away from the start of each time period, the main control module starts the air quality detection module to detect the air quality. If the air quality detected by the air quality detection module does not meet the standard, the main control module starts the purification module to purify the kitchen air; if the air quality detected by the air quality detection module meets the standard, the main control module makes the air quality detection module wait for a time period t1 and then detect the air quality again until entering the corresponding time period, wherein t1<T; when the main control module records the time point when the user starts the range hood N times and the time point when the range hood is turned off corresponding to the time point, the range hood replaces the time period set in the initial mode with the preference time period formed by the learning mode. The main control module of the range hood records the time when the user starts the range hood and the time when the range hood is turned off corresponding to the time multiple times before forming a preferred time period. Therefore, the range hood has an initial mode. The initial time period of the initial mode is the common cooking time period of the three meals of the user obtained by the manufacturer based on general surveys. Through the initial time period, it is convenient for the main control module to control the start time point of the air quality detection module. After the user completes the learning mode, the main control module replaces the time period set in the initial mode with the preferred time period obtained in the learning mode, so that the purification module can better serve specific users.

[0035] According to the control method of the range hood with purification function of the present invention, in the learning mode, the main control module divides the first preference time period T11 corresponding to the breakfast cooking time period into n1 first hour periods in time sequence, divides the second preference time period T12 corresponding to the lunch cooking time period into n2 second hour periods in time sequence, and divides the third preference time period T13 corresponding to the dinner cooking time period into n3 third hour periods in time sequence, and counts the frequency of the range hood being turned on in each hour period, eliminates the small time periods that are relatively early in the corresponding cooking time period and have a low frequency of being turned on, and eliminates the small time periods that are relatively late in the corresponding cooking time period and have a low frequency of being turned on, to obtain the first preference time period T11, the second preference time period T12 and the third preference time period T13.

[0036] For example, the main control module records the time points at which a user starts the range hood N times and the time points at which the range hood is turned off corresponding to the time points, and obtains the initial value of the first preferred time period T11 corresponding to the breakfast cooking time period as 6:00-9:00. The main control module divides the two hours from 6:00 to 9:00 into a first small time period every 10 minutes, and a total of 18 small time periods are obtained, which are: 6:00-6:10, 6:10-6:20, 6: 20-6:30, 6:30-6:40, 6:40-6:50, 6:50-7:00, 7:00-7:10, 7:10-7:20, 7:20-7:30, 7:30-7:40, 7:40-7:50, 7:50-8:00, 8:00-8:10, 8:10-8:20, 8:20-8:30, 8:30-8:40, 8:40-8:50, 8:50-9:00; Assuming that the number of times the user starts the range hood in the first time periods of 6:00-6:10, 6:10-6:20, 8:40-8:50, and 8:50-9:00 is very small, and the frequency of occurrence during the breakfast time period is very low, then the first time periods of 6:00-6:10, 6:10-6:20, 8:40-8:50, and 8:50-9:00 will be eliminated, and the main control module will select the first preferred time period T1 corresponding to the breakfast cooking time period 1 is corrected to 6:20-8:40; and if the number of times the user starts the range hood is normal in the first small time period of 6:00-6:10, 6:10-6:20, 8:40-8:50, and 8:50-9:00, the frequency during the breakfast time period is normal, and during the time period of 6:20-8:40, other small time periods also have a low number of range hood starts, the main control module will not eliminate the small time periods within the time period of 6:20-8:40.

[0037] The method for eliminating the small time periods of the second preferred time period T12 corresponding to the lunch cooking time period and the third preferred time period T13 corresponding to the dinner cooking time period is as described above and will not be repeated here.

[0038] In the control method of the range hood with purification function of the present invention, the main control module of the range hood repeatedly learns, and after completing a learning mode and forming the first preference time period T11, the second preference time period T12 and the third preference time period T13, the range hood uses the corresponding preference time period as the time basis for purifying the air in advance, and at the same time, each time the user turns on and off the range hood, the main control module continues to record the time points of the user's subsequent N times of starting the range hood and the time points of turning off the range hood corresponding to the time points, to form a new preference time period, and replace the original preference time period with the new preference time period to continuously adapt to changes in the user's cooking habits. For some users who need to go to work, the choice of time periods for breakfast and dinner is closely related to the working hours. Some companies have summer time and winter time, and the working hours are different in summer time and winter time. Therefore, after the range hood completes a learning mode and forms the first preference time period T11, the second preference time period T12 and the third preference time period T13, the range hood uses the corresponding preference time period as the time basis for purifying the air in advance. In the subsequent cooking process, the main control module will still record the time points of the user's subsequent N times of starting the range hood and the time points of turning off the range hood corresponding to the time points, forming a new preference time period, and replacing the previous preference time period with the new preference time period to constantly adapt to changes in the user's cooking habits.

[0039] See also Figure 1 and Figure 2The control method of the range hood with purification function of the present invention, the range hood also includes a WiFi module, the WiFi module is used to connect to the user's router, after the WiFi module is connected to the user's router, the main control module can identify the user's location; the range hood also has an adaptation mode, when the WiFi module is connected to the user's router and the main control module identifies the user's location and the time information of the location, the main control module determines the local user's general cooking habits according to the location information of the range hood, if the time period corresponding to the local general cooking habits is significantly different from the initial time period set in the initial mode, the main control module forms a first debugging time period T21, a second debugging time period T22 and a third debugging time period T23 according to the time period corresponding to the general cooking habits of the user's location, and at a time point T before the start of each time period, the main control module starts the air quality detection module to detect the air quality. The initial time set in the initial mode can be set according to Beijing time, and the sunrise and sunset times in different regions are different. For example, in Tibet, Xinjiang, Inner Mongolia and other remote areas, the residents' work and rest habits are significantly different from the initial time set in the initial mode. The range hood starts the purification module in advance based on the initial time period set initially, which cannot guarantee that the air quality of the kitchen space is up to standard before the user performs cooking operations. Therefore, after the range hood is installed in place at the corresponding user's home, the WiFi module of the range hood will connect to the user's router, so that the main control module can identify the user's location and the time information of the location, query the sunrise and sunset time of the corresponding area according to the user's location, and analyze the common cooking habits of users in the corresponding area. The analysis of the common cooking habits of users in the corresponding area is based on the local sunrise and sunset time and the attendance time of most local companies; the time period corresponding to the local common cooking habits obtained is quite different from the initial time period set in the initial mode, then the main control module forms the first debugging time period T21, the second debugging time period T22 and the third debugging time period T23 according to the time period corresponding to the common cooking habits of the user's location, and uses the first debugging time period T21, the second debugging time period T22 and the third debugging time period T23 as the time basis for the range hood to perform purification operations in advance. When the range hood is initially used and the learning mode is not completed, the first initial preference time period T01, the second initial preference time period T02 and the third initial preference time period T03 are replaced by the first debugging time period T21, the second debugging time period T22 and the third debugging time period T23, so that the early purification function of the range hood can be as effective as possible. The effectiveness mentioned here refers to the effective service of the advance purification function to users.

[0040] In the control method of the range hood with purification function of the present invention, after the main control module records the time point of the user starting the range hood N times and the time point of the range hood closing corresponding to the time point, the range hood replaces the debugging time period formed by the main control module according to the general cooking habits of the user's location with the preferred time period formed by the learning mode. Although the range hood is connected to the user's router through the WiFi module, so that the main control module can identify the user's location and form the first debugging time period T21, the second debugging time period T22 and the third debugging time period T23, the first debugging time period T21, the second debugging time period T22 and the third debugging time period T23 are still different from each user's first preferred time period T11, the second preferred time period T12 and the third preferred time period T13. By obtaining each user's first preferred time period T11, the second preferred time period T12 and the third preferred time period T13 through the learning mode, and using the preferred time period as the time basis for the purification module to purify in advance, it can better adapt to the user and make the function of early purification effectively serve the user.

[0041] The control method of the range hood with purification function of the present invention has a default initial preference time period T01, T02, T03 after the range hood leaves the factory; when the range hood is connected to the Internet through the wifi module, the range hood can obtain a relatively suitable debugging time period T21, T22, T23 for the local area; when the debugging time period T21, T22, T23 is inconsistent with the initial preference time period T01, T02, T03, the debugging time period T21, T22, T23 replaces the original default initial preference time period to form a new initial preference time period T01, T02, T03; (replace only once); in the subsequent operation process, the range hood uses the learning mode and forms the preferred time periods T11, T12, T13 based on the debugging time periods T21, T22, T23, and replaces the debugging time periods T21, T22, T23 with the preferred time periods T11, T12, T13; in addition, the range hood uses the learning mode and forms the weekend preferred time periods T31, T32, T33 based on the preferred time periods T11, T12, T13; in order to provide users with more targeted services.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A control method for a range hood with a purification function, the range hood comprising a main control module, an air quality detection module and a purification module, characterized in that: The control method is that: the range hood has a learning mode. When the range hood is running, the main control module records the time points of the user starting the range hood N times and the time points of turning off the range hood corresponding to the time points, so as to obtain the user's cooking period preference information, and form a first preference time period T11, a second preference time period T12 and a third preference time period T13 according to the obtained cooking period preference information, wherein the first preference time period T11 corresponds to the breakfast cooking time period, the second preference time period T12 corresponds to the lunch cooking time period, and the third preference time period T13 corresponds to the dinner cooking time period; at a time point T away from the start of each preference time period, the main control module starts the air quality detection module to detect the air quality. If the air quality detected by the air quality detection module does not meet the standard, the main control module starts the purification module to purify the kitchen air; if the air quality detected by the air quality detection module meets the standard, the main control module enables the air quality detection module to detect the air quality once every waiting time t1 until entering the corresponding time period or the air quality does not meet the standard, wherein t1<T.

2. The control method of the range hood with purification function according to claim 1, characterized in that: The range hood also includes a WiFi module, which is used to connect to the user's router. After the WiFi module is connected to the user's router, the main control module can identify the date information of the user's location and record the user's actual cooking time period when the date corresponds to the weekend; after obtaining the user's M weekend cooking time period preference information, a first weekend preference time period T31, a second weekend preference time period T32 and a third weekend preference time period T33 are formed for the weekend, and based on this preference time period, at a time point T away from the start of each weekend preference time period, the main control module starts the air quality detection module to detect the air quality. If the air quality detected by the air quality detection module is not up to standard, the main control module starts the purification module to purify the kitchen air; if the air quality detected by the air quality detection module is up to standard, the main control module enables the air quality detection module to detect the air quality once every waiting time t1 until entering the corresponding time period or the air quality is not up to standard, wherein t1<T.

3. The control method of the range hood with purification function according to claim 1, characterized in that: The range hood has an initial mode. In the initial mode, the range hood has a first initial preferred time period T01, a second initial preferred time period T02 and a third initial preferred time period T03. At a time point T from the start of each time period, the main control module starts the air quality detection module to detect the air quality. If the air quality detected by the air quality detection module does not meet the standard, the main control module starts the purification module to purify the kitchen air. If the air quality detected by the air quality detection module meets the standard, the main control module makes the air quality detection module wait for a period of time t1 and then detect the air quality again until entering the corresponding time period, where t1<T; when the main control module records the time points when the user starts the range hood N times and the time points when the range hood is turned off corresponding to those time points, the range hood uses the preferred time period formed by the learning mode to replace the time period set in the initial mode.

4. The control method of the range hood with purification function according to claim 3, characterized in that: The range hood also includes a WiFi module, which is used to connect to the user's router. After the WiFi module is connected to the user's router, the main control module can identify the user's location. The range hood also has an adaptation mode. When the WiFi module is connected to the user's router and the main control module identifies the user's location and the time information of the location, the main control module determines the local users' general cooking habits based on the location information of the range hood. If the time period corresponding to the local general cooking habits is significantly different from the initial time period set in the initial mode, the main control module forms a first debugging time period T21, a second debugging time period T22 and a third debugging time period T23 based on the time period corresponding to the general cooking habits of the user's location, and at a time point T before the start of each time period, the main control module starts the air quality detection module to detect the air quality.

5. The control method of the range hood with purification function according to claim 4, characterized in that: After the main control module records the time points at which the user starts the range hood N times and the time points at which the range hood is turned off corresponding to those time points, the range hood uses the preferred time period formed by the learning mode to replace the debugging time period produced by the main control module according to the general cooking habits of the user's location.

6. The control method of the range hood with purification function according to claim 1, characterized in that: In the learning mode, the main control module divides the first preference time period T11 corresponding to the breakfast cooking time period into n1 first hour periods in chronological order, divides the second preference time period T12 corresponding to the lunch cooking time period into n2 second hour periods in chronological order, and divides the third preference time period T13 corresponding to the dinner cooking time period into n3 third hour periods in chronological order, and counts the frequency of the range hood being turned on in each hour period, eliminates the small time periods that are relatively early in the corresponding cooking time period and have a low frequency of being turned on, and eliminates the small time periods that are relatively late in the corresponding cooking time period and have a low frequency of being turned on, to obtain the first preference time period T11, the second preference time period T12 and the third preference time period T13.

7. The control method of the range hood with purification function according to claim 1, characterized in that: The main control module of the range hood repeatedly learns, and after completing a learning mode and forming the first preference time period T11, the second preference time period T12 and the third preference time period T13, the range hood uses the corresponding preference time period as the time basis for purifying the air in advance. At the same time, each time the user turns on and off the range hood, the main control module continues to record the time points of the user's subsequent N times of starting the range hood and the time points of turning off the range hood corresponding to the time points, forming a new preference time period, and replacing the original preference time period with the new preference time period.

8. The control method of the range hood with purification function according to claim 1, characterized in that: When the purification module is started and purifies the kitchen air, the air quality detection module detects the air quality in real time until the air quality reaches the standard. Then the purification module is turned off, the air quality detection module is turned off, and waits for the user to cook.

9. The control method of the range hood with purification function according to claim 1, characterized in that: If the purification module has completed the purification operation and the time has entered the preferred time period, but the user still has not started the range hood, the main control module will enable the air quality detection module to detect the air quality once every waiting time t1 until the user starts the range hood or the corresponding time period ends.

10. The control method of the range hood with purification function according to claim 9, characterized in that: When the purification module is performing purification operation, if the corresponding time period ends, the purification module will be closed after completing the purification operation; when the purification module is performing purification operation, if the user starts the range hood, the purification module will be closed.

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