A control method and control system for intelligent purification of a range hood

Abstract

The application discloses a kind of control method and control system of intelligent purification of range hood, control method includes following steps: S100, obtain the geographical address of range hood, and upload to server;S200, with the geographical address of range hood as center, demarcate a circular area with radius R as judging area, and upload to server;S300, obtain the geographical address of the binding person of range hood;S400, according to the geographical address of binding person, judge whether binding person is located in judging area;S500, if binding person is not in judging area, then do not start the negative ion purification function of range hood;If binding person enters judging area from non-judging area, then start the negative ion purification function of range hood;The application can be realized when user returns home, range hood can be started in advance and carries out air purification, ensure that user enters the moment of door, indoor air has reached comfortable, safe standard, bring very good use experience to user, and effectively protect the body of user from the threat of indoor air pollutant.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of range hood purification, and particularly relates to a control method and a control system for intelligent purification of a range hood. BACKGROUND

[0002] With the acceleration of urbanization, people have moved into residential communities for living, and the air quality in the room is increasingly prominent, especially in the kitchen environment, the generation of pollutants such as oil fume, peculiar smell and PM2.5 has caused a threat to family health. In order to solve this health threat, some range hood manufacturers have produced range hoods with negative ion purification function. The range hood has a negative ion purification module, when the negative ion purification module is started, the negative ion emission probe will emit negative ions, and then the air in the kitchen is purified through the negative ions.

[0003] However, how to start the range hood in advance and perform air purification when the user returns home, to ensure that the indoor air has reached the comfortable and safe standard at the moment when the user enters the door, is a problem worth studying and necessary to solve. For this reason, the applicant proposes a control method and a control system for intelligent purification of a range hood. SUMMARY

[0004] The purpose of the present application is to provide a control method and a control system for intelligent purification of a range hood, which can start the range hood in advance and perform air purification when the user returns home, to ensure that the indoor air has reached the comfortable and safe standard at the moment when the user enters the door.

[0005] According to one aspect of the present application, the present application 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 R as a judgment area with the geographical address of the range hood as the center, and uploading it to the server;

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

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

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

[0011] Further, before judging whether the binding person is located in the judgment area in the step S400, a time judgment is performed to judge whether the current day is a set working day, and if not, the judgment whether the binding person is located in the judgment area is not performed.

[0012] Further, in the step S500, when the binding person enters the judgment area from the non-judgment area, a time period judgment is performed to judge whether the current time is a set home time period, and if yes, the negative ion purification function of the range hood is started; and if not, the negative ion purification function of the range hood is not started.

[0013] Further, when the negative ion purification function of the range hood is started, the moving speed of the binding person is calculated to judge the travel mode of the binding person, and according to the travel mode of the binding person, the negative ion purification function of the range hood is started with a matched duty cycle.

[0014] Further, the travel mode of the binding person includes driving, riding and walking, when the travel mode of the binding person is judged to be driving, the negative ion purification function of the range hood is started with a first duty cycle; when the travel mode of the binding person is judged to be riding, the negative ion purification function of the range hood is started with a second duty cycle; and when the travel mode of the binding person is judged to be 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] Further, when the negative ion purification function of the range hood is started, the moving speed of the binding person is continuously calculated, when the moving speed of the binding person in a continuous time period is lower than a set minimum speed threshold, the negative ion purification function of the range hood is stopped; when the moving speed of the binding person is greater than the minimum speed threshold again, it is judged whether the binding person is far away from the geographic address of the range hood or close to the geographic address of the range hood, when the binding person is far away from the range hood, the negative ion purification function of the range hood is not started, and when the binding person is close to the range hood, the negative ion purification function of the range hood is started again.

[0016] Further, before starting the negative ion purification function of the range hood, the PM2.5 concentration value P in the kitchen air is detected and compared with a set concentration threshold 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 moving speed of the binding person, the time T1 for the binding person to reach the location of the range hood is calculated, the PM2.5 concentration value P in the kitchen air is detected in real time, and the time T2 for the concentration value P to drop to the concentration threshold P0 is calculated, and the duty cycle of the negative ion purification function of the range hood is adjusted in real time so that T2≤T1.

[0017] According to a second aspect of the present application, the present application provides a control system for intelligent purification of a range hood, which uses the control method for intelligent purification of the range hood to control the range hood; the control system comprises the range hood, a mobile phone and a server, the range hood is provided with 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 electrically connected with the main control module, the main control module is communicatively connected with the server through the wireless connection module, the main control module is communicatively connected with an APP installed on the mobile phone and used for controlling the range hood through the wireless connection module, and the APP is communicatively connected with the server through a network connection module of the mobile phone.

[0018] Further, the range hood is further provided with a methane sensor, the methane sensor is communicatively connected with the main control module, the methane sensor monitors a methane concentration in a kitchen in real time and transmits the monitored methane concentration to the main control module, a methane concentration threshold value 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 value, if the methane concentration is not over the standard, the negative ion purification function is normally started, and if the methane concentration is over the standard, the smoke exhaust fan is started to ventilate until the methane concentration is lower than the methane concentration threshold value.

[0019] Further, when the negative ion purification function is turned off, the main control module transmits negative ion purification completion information to the server, the server pushes prompt information to the APP to remind a user that the purification operation is completed and the indoor air has returned to a good state, and if the range hood starts the smoke exhaust fan to ventilate due to over-standard methane concentration, after the ventilation is completed, the main control module transmits ventilation completion information to the server, and the server pushes prompt information to the APP to remind the user that the methane concentration was once over the standard and has now returned to a safe range.

[0020] The present application detects the current time and the position of the user, judges whether the current time is a set time period and whether the user enters a certain range around the range hood, and then automatically starts and turns off the negative ion purification function of the range hood. When the user returns home, the range hood can be started in advance to purify the air, so that the indoor air reaches a comfortable and safe standard at the moment when the user enters the door, and the user has a very good use experience, and the user's body is effectively protected from indoor air pollutants. Other advantages of the present application are described in the subsequent specification. BRIEF DESCRIPTION OF DRAWINGS

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

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

[0023] In the present application, unless otherwise explicitly specified and limited, the terms such as "mounting", "connection", "linking", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] The following will be further described in combination with the drawings and specific embodiments:

[0025] Embodiment 1

[0026] The present embodiment provides a control system for intelligent purification of a range hood, as shown in Figure 2 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 electrically connected with 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 for detecting the PM2.5 concentration of the air in the kitchen where the range hood is located, and the methane sensor is used for monitoring the methane concentration in the kitchen in real time. The wireless connection module includes a WiFi module, the main control module is connected with the server in communication through the WiFi module of the wireless connection module, so as to upload data to the server, and also receive data and instructions from the server. The wireless connection module also includes a Bluetooth module, the main control module is connected with the APP installed on the mobile phone for controlling the range hood through the Bluetooth module of the wireless connection module, and the APP is connected with the server in communication through the network connection module of the mobile phone.

[0027] Embodiment 2

[0028] The present embodiment provides a control method for intelligent purification of a range hood, as shown in Figure 1 The control method includes the following steps:

[0029] S100, obtaining the geographic 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 geographic address, or the geographic position, of the range hood through the IP address.

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

[0031] S300, the geographic address of the bound person of the range hood is obtained, and the bound person is the owner of the mobile phone where the APP of the range hood is located. In the current life, mobile phones are basically carried with them, so by obtaining the geographic address or geographic position of the mobile phone, the geographic address or geographic position of the owner can be known.

[0032] S400, whether the bound person is located in the judgment area is judged according to the geographic address of the bound person. Before judging whether the bound person is located in the judgment area, time judgment is performed to judge whether the current day is a set working day. For example, Monday to Friday is set as a working day, and it is first judged whether the current time is Monday to Friday. If not, it is not judged whether the bound person is located in the judgment area. If yes, subsequent judgment is performed.

[0033] S500, if the bound person is not in the judgment area, the negative ion purification function of the range hood is not started. If the bound person enters the judgment area from the non-judgment area, time period judgment is also performed to judge whether it is the set home time period. For example, noon (12:00-14:00) and / or around 6:00 pm (18:00-20:00) are set as the home time period. It is first judged whether the current time is within 12:00-14:00 or 18:00-20:00. If yes, the negative ion purification function of the range hood is started. If not, it is indicated that the user is just passing by and does not go home, and the negative ion purification function of the range hood is not started.

[0034] In some exemplary embodiments, when the negative ion purification function of the range hood is started, the moving speed of the bound person is calculated, the bound person's travel mode is judged, and the negative ion purification function of the range hood is started with a matching duty cycle according to the bound person's travel mode. The travel mode of the bound person includes 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 started 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 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 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 started, the moving speed of the bound person is continuously calculated. When the moving speed of the bound person in a continuous period of time is lower than the set minimum speed threshold, it indicates that the user has stayed in a certain place for a long time. Therefore, the negative ion purification function of the range hood is stopped first to save energy. When the moving speed of the bound person is greater than the minimum speed threshold again, it is judged whether the bound person is away from the geographical address of the range hood or close to the geographical address of the range hood. When the bound person is 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.

[0036] In addition, before starting the negative ion purification function of the range hood, the PM2.5 detection module of the range hood is used to detect the PM2.5 concentration value P of the air in the kitchen, and compare it with the set concentration threshold 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 required for the bound person to reach the location of the range hood, i.e. the time T1 required for the user to return home, is calculated in real time. The PM2.5 concentration value P in the kitchen air is detected in real time, and the time T2 required for the PM2.5 concentration value P to drop to the concentration threshold P0 is calculated. The duty cycle of the range hood negative ion purification function is adjusted in real time to make T2≤T1, so as 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 in operation is increased. In addition, T2 and T1 are made as close as possible, for example, (T1-T2)÷T1×100%≤5%.

[0037] The methane concentration threshold is set in the main control module of the range hood. 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 is not over standard, the negative ion purification function is started normally. If the methane concentration is over 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 the prompt information 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 starts the exhaust fan for ventilation due to over-standard methane concentration, after the ventilation is completed, the main control module transmits the ventilation completion information to the server, and the server pushes the prompt information to the APP to remind the user that the methane concentration has been over standard and has now returned to a safe range.

[0039] In summary, the present application detects the current time and the position of the user, judges whether the current time is a set time period, judges whether the user enters a certain range around the range hood, and further automatically opens and closes 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 at the moment the user enters the door, providing a very good user experience and effectively protecting the user's body from indoor air pollutants.

[0040] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Various modifications and changes can be made by those skilled in the art based on the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control method for intelligent purification of range hoods, 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 R centered on the geographical address of the range hood as a determination area, and uploading the result to the server; S300: Obtain the geographical address of the person who is bound to the range hood; S400, judging whether the bound person is located in the 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; in step S400, before determining whether the bound person is 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 in the determination area is not performed; In step S500, when the bound person enters the determination area from the non-determination area, a time period is first determined to determine whether it is the set home time period. If so, the negative ion purification function of the range hood is activated; if not, the negative ion purification function of the range hood is not activated. When the negative ion purification function of the range hood is activated, the bound person's moving speed is calculated, and the bound person's travel mode is determined. According to the bound person's travel mode, the negative ion purification function of the range hood is activated with an appropriate duty cycle. When the negative ion purification function of the range hood is activated, 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 activated. When the bound person is close to the range hood, the negative ion purification function of the range hood is activated again.

2. The control method for intelligent purification of range hood according to claim 1, 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.

3. The control method for intelligent purification of range hood according to claim 2, 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, 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 based on the bound person's moving speed, 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 when it is running is adjusted in real time so that T2≤T1.

4. A control system for intelligent purification of range hoods, 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 3; 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, 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 communicated with the server via the wireless connection module, the main control module is bound and connected to the APP for range hood control installed on the mobile phone via the wireless connection module, and the APP is communicated with the server via the network connection module of the mobile phone.

5. The intelligent purification control system for range hoods according to claim 4 is 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 exhaust fan is turned on for ventilation until the methane concentration is lower than the methane concentration threshold.

6. The intelligent purification control system for range hoods according to claim 5, 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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