Control method and control system for intelligent purification of range hood

Abstract

The invention discloses a control method and a control system for intelligent purification of a range hood, and the control method comprises the following steps: S100, obtaining a geographic address of the range hood, and uploading the geographic address to a server; s200, delimiting a circular area with the radius of R by taking the geographical address of the range hood as the center as a judgment area, and uploading the judgment area to the server; s300, acquiring a geographical address of a binding person of the range hood; s400, according to the geographical address of the binding person, judging whether the binding person is located in the judgment area or not; s500, if the binding person is not in the judgment area, the negative ion purification function of the range hood is not started; if the binding person enters the judgment area from the non-judgment area, the negative ion purification function of the range hood is started; the range hood can be started in advance and purify air when a user goes back home, it is ensured that indoor air reaches the comfortable and safe standard at the moment when the user enters the home, very good use experience is brought to the user, and the body of the user is effectively protected from being threatened by indoor air pollutants.

Description

Technical Field

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

[0002] With the acceleration of urbanization, people have moved into residential areas, and the problem of indoor air quality has become increasingly prominent, especially in the kitchen environment, where the generation of pollutants such as oil smoke, odor and PM2.5 poses a threat to family health. In order to solve this health threat, some range hood manufacturers have produced range hoods with negative ion purification functions. This range hood has a negative ion purification module. When the negative ion purification module is started, its negative ion emission probe will emit negative ions, and then the air in the kitchen will be purified through negative ions.

[0003] However, how to start the range hood in advance and purify the air when the user returns home to ensure that the indoor air reaches comfortable and safe standards the moment the user enters the house is a problem worthy of study and needs to be solved. To this end, the applicant proposes a control method and control system for intelligent purification of range hoods. Summary of the invention

[0004] The purpose of the present invention is to provide a control method and control system for intelligent purification of range hoods, so that when a user returns home, the range hood can be started in advance and perform air purification, ensuring that the indoor air reaches comfortable and safe standards the moment the user enters the house.

[0005] According to one aspect of the present invention, the present invention provides a control method for intelligent purification of a range hood, comprising the following steps:

[0006] S100, obtaining the geographical address of the range hood and uploading it to the server;

[0007] S200, defining a circular area with a radius of R with the geographical address of the range hood as the center as the determination area, and uploading it to the server;

[0008] S300, obtaining the geographical address of the person who is bound to the range hood;

[0009] S400, judging whether the bound person is located in a determination area according to the geographical address of the bound person;

[0010] S500: If the bound person is not in the determination area, the negative ion purification function of the range hood is not activated; if the bound person enters the determination area from the non-determination area, the negative ion purification function of the range hood is activated.

[0011] Furthermore, in step S400, before determining whether the bound person is located in the determination area, a time determination is first performed to determine whether the current day is a set working day. If not, the determination of whether the bound person is located in the determination area is not performed.

[0012] Furthermore, in step S500, when the bound person enters the determination area from the non-determination area, a time period judgment is first performed to determine whether this is the set home time period. If so, the negative ion purification function of the range hood is started; if not, the negative ion purification function of the range hood is not started.

[0013] Furthermore, when the negative ion purification function of the range hood is activated, the moving speed of the bound person is calculated, and the travel mode of the bound person is judged. According to the travel mode of the bound person, the negative ion purification function of the range hood is activated with an appropriate duty cycle.

[0014] Furthermore, the travel modes of the bound person include driving, cycling and walking. When it is determined that the travel mode of the bound person is driving, the negative ion purification function of the range hood is started with a first duty cycle; when it is determined that the travel mode of the bound person is cycling, the negative ion purification function of the range hood is started with a second duty cycle; when it is determined that the travel mode of the bound person is walking, the negative ion purification function of the range hood is started with a third duty cycle; the first duty cycle>the second duty cycle>the third duty cycle.

[0015] Furthermore, when the negative ion purification function of the range hood is started, the moving speed of the bound person is continuously calculated. When the moving speed of the bound person is lower than the set minimum speed threshold for a continuous period of time, the negative ion purification function of the range hood is stopped; when the moving speed of the bound person is greater than the minimum speed threshold again, it is determined whether the bound person is far away from the geographical address of the range hood or close to the geographical address of the range hood. When the bound person is far away from the range hood, the negative ion purification function of the range hood is not started. When the bound person is close to the range hood, the negative ion purification function of the range hood is started again.

[0016] Furthermore, before starting the negative ion purification function of the range hood, first detect the PM2.5 concentration value P in the kitchen air and compare it with the set concentration threshold P0. If P≤P0, the negative ion purification function of the range hood will not be started; if P>P0, the negative ion purification function of the range hood will be started; the time T1 when the bound person reaches the location of the range hood is calculated according to the moving speed of the bound person, the PM2.5 concentration value P in the kitchen air is detected in real time, and the time T2 when it drops to the concentration threshold P0 is calculated, and the duty cycle of the range hood's negative ion purification function is adjusted in real time so that T2≤T1.

[0017] According to the second aspect of the present invention, the present invention provides a control system for intelligent purification of range hoods, which uses the above-mentioned control method for intelligent purification of range hoods to control the range hood; the control system includes a range hood, a mobile phone and a server, the range hood having a smoke exhaust fan, a main control module, a wireless connection module, a negative ion purification module, and a PM2.5 detection module, the smoke exhaust fan, the wireless connection module, the negative ion purification module and the PM2.5 detection module are all electrically connected to the main control module, the main control module is communicatively connected to the server via the wireless connection module, the main control module is bound and connected to an APP installed on the mobile phone for controlling the range hood via the wireless connection module, and the APP is communicatively connected to the server via the network connection module of the mobile phone.

[0018] Furthermore, the range hood also has a methane sensor, which is communicatively connected to the main control module. The methane sensor monitors the methane concentration in the kitchen in real time and transmits the monitored methane concentration to the main control module; a methane concentration threshold is set in the main control module. Before starting the negative ion purification function of the range hood, the main control module compares the methane concentration transmitted by the methane sensor with the methane concentration threshold. If the methane concentration does not exceed the standard, the negative ion purification function is started normally; if the methane concentration exceeds the standard, the smoke exhaust fan is turned on for ventilation until the methane concentration is lower than the methane concentration threshold.

[0019] Furthermore, when the negative ion purification function is turned off, the main control module transmits the negative ion purification completion information to the server, and the server pushes a prompt message to the APP to remind the user that the purification operation is completed and the indoor air has returned to a good state; if the range hood has turned on the exhaust fan for ventilation due to excessive methane concentration, after the ventilation is completed, the main control module transmits the ventilation completion information to the server, and the server pushes a prompt message to the APP to remind the user that the methane concentration has exceeded the standard and has now returned to a safe range.

[0020] The present invention detects the current time and the user's location, determines whether the current time is a set time period, and determines whether the user enters a certain range around the range hood, and then automatically turns on and off the negative ion purification function of the range hood. When the user returns home, the range hood can start in advance and purify the air, ensuring that the indoor air has reached a comfortable and safe standard when the user enters the house, bringing a very good user experience to the user and effectively protecting the user's body from the threat of indoor air pollutants. Other advantages of the present invention are described in the subsequent description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a flow chart of the control method of intelligent purification of range hood provided by the present invention;

[0022] Figure 2It is a block diagram of the electric control structure of the control system for the intelligent purification of the range hood provided by the present invention. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0025] Example 1

[0026] This embodiment provides a control system for intelligent purification of a range hood. Figure 2 As shown, the control system includes a range hood, a mobile phone and a server. The range hood has a smoke exhaust fan, a main control module, a wireless connection module, a negative ion purification module, a PM2.5 detection module and a methane sensor. The smoke exhaust fan, the wireless connection module, the negative ion purification module, the PM2.5 detection module and the methane sensor are all electrically connected to the main control module. The main control module includes a circuit board and an MCU chip and a storage chip arranged on the circuit board. The PM2.5 detection module is used to detect the PM2.5 concentration of the air in the kitchen where the range hood is located, and the methane sensor monitors the methane concentration in the kitchen in real time. The wireless connection module includes a WiFi module, and the main control module is connected to the server through the WiFi module of the wireless connection module, and can upload data to the server, and can also receive data and instructions from the server. The wireless connection module also includes a Bluetooth module, and the main control module is connected to the APP installed on the mobile phone for range hood control through the Bluetooth module of the wireless connection module, and the APP is connected to the server through the network connection module of the mobile phone.

[0027] Example 2

[0028] This embodiment provides a control method for intelligent purification of a range hood. Figure 1 As shown, the following steps are included:

[0029] S100, obtaining the geographical address of the range hood and uploading it to the server. After the range hood is installed in the kitchen, the range hood uploads the IP address of the router to the server, and the server can query the geographical address, or geographical location, of the range hood through the IP address.

[0030] S200, a circular area with a radius of R is defined as the determination area with the geographical address of the range hood as the center, and uploaded to the server. The specific value of R can be set by the user, for example, the user can set it through the control panel on the range hood or the touch screen of the range hood with a touch screen, or the user can set it through the APP bound to the range hood, for example, R can be set to 2 kilometers, 2.5 kilometers, 3 kilometers, etc. If the user does not set it, the initial value set by the range hood manufacturer is used.

[0031] S300. Obtain the geographical address of the person who binds the range hood. The person who binds the range hood is the owner of the mobile phone where the APP bound to the range hood is located. In today's life, mobile phones are basically carried with us, so by obtaining the geographical address or geographical location of the mobile phone, the geographical address or geographical location of the owner can be known.

[0032] S400. Determine whether the bound person is located in the determination area according to the geographical address of the bound person. Before determining whether the bound person is located in the determination area, first determine whether the current day is a set working day. For example, if Monday to Friday is set as working days, first determine whether the current time is Monday to Friday. If not, then do not determine whether the bound person is located in the determination area. If not, then perform subsequent determination.

[0033] S500. If the bound person is not in the determination area, the negative ion purification function of the range hood will not be activated. If the bound person enters the determination area from the non-determination area, a time period judgment must be performed first to determine whether this is the set time period for going home. For example, if noon (12:00-14:00) and / or around six o'clock in the evening (18:00-20:00) are set as the time period for going home, first determine whether the current time is 12:00-14:00 or 18:00-20:00. If so, the negative ion purification function of the range hood will be activated. If not, it means that the user is just passing by and is not going home, so the negative ion purification function of the range hood will not be activated.

[0034] In some exemplary embodiments, when the negative ion purification function of the range hood is activated, the moving speed of the bound person is calculated, the travel mode of the bound person is judged, and the negative ion purification function of the range hood is activated with a corresponding duty cycle according to the travel mode of the bound person. The travel modes of the bound person include driving, riding, and walking. When it is determined that the travel mode of the bound person is driving, the negative ion purification function of the range hood is activated with a first duty cycle; when it is determined that the travel mode of the bound person is riding, the negative ion purification function of the range hood is activated with a second duty cycle; when it is determined that the travel mode of the bound person is walking, the negative ion purification function of the range hood is activated with a third duty cycle. The faster the user gets home, the faster the purification speed is needed, so the first duty cycle> the second duty cycle> the third duty cycle.

[0035] When the negative ion purification function of the range hood is activated, the bound person's moving speed is continuously calculated. When the bound person's moving speed is lower than the set minimum speed threshold for a continuous period of time, it means that the user has stayed in a certain place for a long time. In this case, the negative ion purification function of the range hood is stopped first to solve the energy problem. When the bound person's moving speed is greater than the minimum speed threshold again, it is determined whether the bound person is far away from the geographical address of the range hood or close to the geographical address of the range hood. When the bound person is far away from the range hood, the negative ion purification function of the range hood is not activated. When the bound person is close to the range hood, the negative ion purification function of the range hood is activated again.

[0036] In addition, before starting the negative ion purification function of the range hood, the PM2.5 concentration value P of the air in the kitchen is first detected by the PM2.5 detection module of the range hood, and it is compared with the set concentration threshold value P0. If P≤P0, the negative ion purification function of the range hood is not started. If P>P0, the negative ion purification function of the range hood is started. According to the real-time moving speed of the bound person and the distance between the bound person and the range hood, the time T1 for the bound person to reach the location of the range hood is calculated in real time, that is, the time T1 required for the user to return home. Real-time detection of the PM2.5 concentration value P in the kitchen air, and calculation of the time T2 required for it to drop to the concentration threshold value P0, adjust the duty cycle of the negative ion purification function of the range hood in real time, so that T2≤T1, to ensure that the air purification is completed before the user arrives home. For example, when T2>T1 is calculated, the duty cycle of the negative ion emission probe during operation is increased. In addition, try to make T2 and T1 close, such as (T1-T2)÷T1×100%≤5%.

[0037] The main control module of the range hood is set with a methane concentration threshold. The methane sensor monitors the methane concentration in the kitchen in real time and transmits the monitored methane concentration to the main control module. Before starting the negative ion purification function of the range hood, the main control module compares the methane concentration transmitted by the methane sensor with the methane concentration threshold. If the methane concentration does not exceed the standard, the negative ion purification function is started normally. If the methane concentration exceeds the standard, in order to ensure safety, the negative ion purification function is not started, and the exhaust fan is turned on for ventilation until the methane concentration is lower than the methane concentration threshold.

[0038] When the negative ion purification function is turned off, the main control module transmits the negative ion purification completion information to the server, and the server pushes a prompt message to the APP to remind the user that the purification operation is complete and the indoor air has returned to a good state. If the range hood has opened the exhaust fan for ventilation due to excessive methane concentration, after the ventilation is completed, the main control module transmits the ventilation completion information to the server, and the server pushes a prompt message to the APP to remind the user that the methane concentration has exceeded the standard and has now returned to a safe range.

[0039] In summary, the present invention detects the current time and the user's location, determines whether the current time is a set time period, and determines whether the user enters a certain range around the range hood, and then automatically turns on and off the negative ion purification function of the range hood. When the user returns home, the range hood can start in advance and purify the air, ensuring that the indoor air has reached a comfortable and safe standard when the user enters the house, bringing a very good user experience to the user and effectively protecting the user's body from the threat of indoor air pollutants.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A control method for intelligent purification of a range hood, characterized in that: The steps include: S100, obtaining the geographical address of the range hood and uploading it to the server; S200, defining a circular area with a radius of R with the geographical address of the range hood as the center as the determination area, and uploading it to the server; S300, obtaining the geographical address of the person who is bound to the range hood; S400, judging whether the bound person is located in a determination area according to the geographical address of the bound person; S500: If the bound person is not in the determination area, the negative ion purification function of the range hood is not activated; if the bound person enters the determination area from the non-determination area, the negative ion purification function of the range hood is activated.

2. The control method for intelligent purification of range hood according to claim 1, characterized in that: In the step S400, before determining whether the bound person is within the determination area, a time determination is first performed to determine whether the current day is a set working day. If not, the determination of whether the bound person is within the determination area is not performed.

3. The control method for intelligent purification of range hood according to claim 2, characterized in that: In step S500, when the bound person enters the determination area from the non-determination area, a time period judgment is first performed to determine whether this is the set home time period. If so, the negative ion purification function of the range hood is started; if not, the negative ion purification function of the range hood is not started.

4. The control method for intelligent purification of range hood according to claim 3 is characterized in that: When the negative ion purification function of the range hood is activated, the moving speed of the bound person is calculated, and the travel mode of the bound person is judged. According to the travel mode of the bound person, the negative ion purification function of the range hood is activated with an appropriate duty cycle.

5. The control method for intelligent purification of range hood according to claim 4, characterized in that: The travel modes of the bound person include driving, cycling and walking. When it is determined that the travel mode of the bound person is driving, the negative ion purification function of the range hood is started with a first duty cycle; when it is determined that the travel mode of the bound person is cycling, the negative ion purification function of the range hood is started with a second duty cycle; when it is determined that the travel mode of the bound person is walking, the negative ion purification function of the range hood is started with a third duty cycle; the first duty cycle>the second duty cycle>the third duty cycle.

6. The control method for intelligent purification of range hood according to claim 4, characterized in that: When the negative ion purification function of the range hood is started, the movement speed of the bound person is continuously calculated. When the movement speed of the bound person is lower than the set minimum speed threshold for a continuous period of time, the negative ion purification function of the range hood is stopped. When the movement speed of the bound person is greater than the minimum speed threshold again, it is determined whether the bound person is far away from the geographical address of the range hood or close to the geographical address of the range hood. When the bound person is far away from the range hood, the negative ion purification function of the range hood is not started. When the bound person is close to the range hood, the negative ion purification function of the range hood is started again.

7. The control method for intelligent purification of range hood according to claim 4, characterized in that: Before starting the negative ion purification function of the range hood, first detect the PM2.5 concentration value P in the kitchen air and compare it with the set concentration threshold P0. If P≤P0, do not start the negative ion purification function of the range hood; if P>P0, start the negative ion purification function of the range hood; calculate the time T1 when the bound person reaches the location of the range hood based on the bound person's moving speed, detect the PM2.5 concentration value P in the kitchen air in real time, and calculate the time T2 when it drops to the concentration threshold P0, and adjust the duty cycle of the range hood's negative ion purification function in real time so that T2≤T1.

8. A control system for intelligent purification of a range hood, characterized in that: The range hood is controlled using the control method for intelligent purification of the range hood as described in any one of claims 1 to 7; the control system includes the range hood, a mobile phone and a server, the range hood has a smoke exhaust fan, a main control module, a wireless connection module, a negative ion purification module, and a PM2.5 detection module, the smoke exhaust fan, the wireless connection module, the negative ion purification module and the PM2.5 detection module are all electrically connected to the main control module, the main control module is communicatively connected to the server via the wireless connection module, the main control module is bound and connected to an APP for range hood control installed on the mobile phone via the wireless connection module, and the APP is communicatively connected to the server via the network connection module of the mobile phone.

9. The control system for intelligent purification of range hood according to claim 8, characterized in that: The range hood also has a methane sensor, which is communicatively connected to the main control module. The methane sensor monitors the methane concentration in the kitchen in real time and transmits the monitored methane concentration to the main control module. A methane concentration threshold is set in the main control module. Before starting the negative ion purification function of the range hood, the main control module compares the methane concentration transmitted by the methane sensor with the methane concentration threshold. If the methane concentration does not exceed the standard, the negative ion purification function is started normally; if the methane concentration exceeds the standard, the smoke exhaust fan is turned on for ventilation until the methane concentration is lower than the methane concentration threshold.

10. The control system for intelligent purification of range hoods according to claim 9, characterized in that: When the negative ion purification function is turned off, the main control module transmits the negative ion purification completion information to the server, and the server pushes a prompt message to the APP to remind the user that the purification operation is completed and the indoor air has returned to a good state; if the range hood has turned on the exhaust fan for ventilation due to excessive methane concentration, after the ventilation is completed, the main control module transmits the ventilation completion information to the server, and the server pushes a prompt message to the APP to remind the user that the methane concentration has exceeded the standard and has now returned to a safe range.

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