CN114484547A - Range hood and control method thereof - Google Patents

Abstract

The embodiment of the invention discloses a range hood and a control method thereof, wherein the control method comprises the following steps: the range hood comprises a first detection module, a second detection module, a lighting module, a fan and a main control module which is respectively and electrically connected with the first detection module, the second detection module, the lighting module and the fan; the first detection module is used for detecting whether people exist around the range hood and sending a first detection result to the main control module; the second detection module is used for detecting the ambient illumination intensity of the range hood and sending a second detection result to the main control module; the main control module is used for detecting the working state of the fan; the main control module is also used for controlling the lighting module to be turned on or turned off according to the first detection result, the second detection result and the working state of the fan, and adjusting the brightness of the lighting module. The technical scheme that this embodiment provided to realize range hood can the luminance of automatically regulated light, it is more intelligent and more energy-conserving, and then improve user's experience impression.

Description

Range hood and control method thereof

Technical Field

The embodiment of the invention relates to the technical field of range hoods, in particular to a range hood and a control method of the range hood.

Background

With the development and improvement of the scientific and technical level, the influence of household appliances on the life of residents is also increasing, wherein the range hood becomes an indispensable electrical appliance of the household appliances.

It can be understood that range hood is used for generally discharging fume when the user cooks the operation to range hood is provided with the light usually, so that can carry out auxiliary lighting under the darker condition of external light, the user of being convenient for cooks the operation such as. However, most of the illuminating lamps of the existing range hoods in the market can not adjust the brightness, can only realize the action of a switch through manual operation, are not intelligent enough, and have single function. Although the illuminating lamp of some range hoods can be automatically turned on and off, the illuminating lamp is turned on and off simply by judging the intensity of ambient light or whether a person approaches the range hood to execute the turning on and off of the illuminating lamp. And a part of range hoods can judge and execute the switch of the illuminating lamp according to the ambient illumination intensity and whether people are close to the two conditions, but the range hoods cannot adjust the brightness of the illuminating lamp, are not intelligent enough and energy-saving, and do not well utilize the illuminating lamp of the range hoods.

In conclusion, the function of the illuminating lamp in the existing range hood is relatively single, and the brightness of the illuminating lamp is difficult to realize automatic adjustment, so that the range hood is low in intellectualization and not energy-saving enough, and the user experience is further reduced.

Disclosure of Invention

The invention provides a range hood and a control method of the range hood, which are used for realizing that the range hood can automatically adjust the brightness of an illuminating lamp, so that the range hood is more intelligent and more energy-saving, and the experience of a user is improved.

In a first aspect, an embodiment of the present invention provides a range hood, where the range hood includes a first detection module, a second detection module, an illumination module, a fan, and a main control module electrically connected to the first detection module, the second detection module, the illumination module, and the fan, respectively;

the first detection module is used for detecting whether people exist around the range hood or not and sending a first detection result to the main control module;

the second detection module is used for detecting the ambient illumination intensity of the range hood and sending a second detection result to the main control module;

the main control module is used for detecting the working state of the fan; the main control module is further used for controlling the lighting module to be turned on or off and adjusting the brightness of the lighting module according to the first detection result, the second detection result and the working state of the fan.

In a second aspect, an embodiment of the present invention further provides a control method for a range hood, which is applied to any one of the range hoods in the first aspect, and the control method includes:

detecting whether people exist around the range hood or not and generating a first detection result;

detecting the intensity of ambient light of the range hood and generating a second detection result;

detecting the working state of the fan;

and controlling the lighting module to be turned on or off and adjusting the brightness of the lighting module according to the first detection result, the second detection result and the working state of the fan.

According to the embodiment of the invention, the first detection module is arranged to detect whether people are around the range hood in real time and send the first detection result to the main control module, so that the main control module can know whether a user operates around the range hood; the second detection module detects the intensity of the ambient light of the range hood in real time and sends a second detection result to the main control module, so that the main control module can know the intensity of the ambient light of the current range hood; the main control module can detect the running state of the fan in real time. So, main control module can be according to receiving first testing result, the operating condition control lighting module of second testing result and fan that detects opens or closes, satisfy the demand to illumination under the different scenes, and automatically regulated lighting module's luminance in real time, further satisfy the different demands of user to luminance in various actual scenes, both avoided the waste of the energy, also make range hood more intelligent, range hood's function has been richened, control logic through more humanized, science and intellectuality satisfies user's multiple demand, user's product experience impression is improved.

Drawings

Fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a range hood according to an embodiment of the present invention;

fig. 3 is a flowchart of a control method of a range hood according to an embodiment of the present invention;

fig. 4 is a flowchart of a specific control method of a range hood according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present invention, and referring to fig. 1, the range hood includes a first detection module 10, a second detection module 20, a lighting module 30, a fan 40, and a main control module 50 electrically connected to the first detection module 10, the second detection module 20, the lighting module 30, and the fan 40, respectively; the first detection module 10 is used for detecting whether people are around the range hood and sending a first detection result to the main control module 50; the second detection module 20 is configured to detect the intensity of ambient light of the range hood, and send a second detection result to the main control module 50; the main control module 50 is used for detecting the working state of the fan 40; the main control module 50 is further configured to control the lighting module 30 to be turned on or off and adjust the brightness of the lighting module 30 according to the first detection result, the second detection result and the working state of the fan 40.

The first detection module 10 is used to detect whether there is a person around the range hood, and the specific structure and type of the first detection module 10 are not particularly limited in this respect, and may be, for example, a sensing device for human body sensing, and may include a human body infrared pyroelectric sensor, a laser sensor, a radar sensor, and may also adopt an infrared pair tube detection device or a microwave detection device.

The second detection module 20 is configured to detect an ambient light intensity of the range hood, generate a first detection result, and send the first detection result to the main control module, and as to a specific structure and a type of the first detection module 20, an embodiment of the present invention is not particularly limited, and may be, for example, a photosensitive sensor.

The specific structure of the main Control module 50 is not limited in this embodiment, and may be, for example, a micro programmed Control Unit (MCU), which has good de-shaping, flexibility and maintainability.

It can be understood that, taking the first detection module 10 as an example of a human body infrared pyroelectric sensor, the internal structure of the human body infrared pyroelectric sensor usually adopts a pyroelectric element to detect the infrared energy change emitted by an object in a non-contact manner and convert the infrared energy change into an electrical signal for output. The human body temperature is generally between 36 degrees and 37 degrees, so a human body can emit infrared rays with specific wavelength about 10um, a pyroelectric element in the human body infrared pyroelectric sensor is sensitive to infrared radiation about 10um, and once a person invades a detection area of the human body infrared pyroelectric sensor, the human body infrared radiation is received by the pyroelectric element, a corresponding electric signal is generated, and then the fact that the person appears in the detection area of the human body infrared pyroelectric sensor can be known.

Specifically, the range hood is provided with the first detection module 10, which can detect whether people are around the range hood in real time, generate a first detection result and send the first detection result to the main control module 50, so that the main control module 50 can determine whether a user performs an operation around the range hood, such as cooking. Simultaneously, still be provided with second detection module 20 on the range hood, can detect the illumination intensity under the current range hood place environment in real time, and generate the second testing result and send to main control module 50, can understand, range hood installs in the kitchen at user's house usually, under the darker condition of light in the kitchen, the ambient illumination intensity that second detection module 20 detected also can be less, on the contrary, when light is brighter in the kitchen, the ambient illumination intensity that corresponds to second detection module 20 and detects also can be great. In addition, the inside fan 40 that is provided with of range hood, be used for discharging fume when the operation, main control module 50 can real-time detection fan 40's running state, thus, main control module 50 can be respectively after receiving first testing result and second testing result, according to first testing result, the running state control lighting module 20 of second testing result and fan 40 opens or closes, and automatically regulated lighting module 30's luminance in real time, make range hood more intelligent, satisfy the different demands of user to illumination intensity under the various different scenes, the waste of the energy has been avoided simultaneously, improve the user and experienced the impression to the product.

For example, if the first detection module 10 detects that there is a person around the range hood, a first detection result of the person around the range hood is generated and sent to the main control module 50; if the second detection module 20 detects that the ambient illumination intensity of the range hood is small, a second detection result with small ambient illumination intensity is generated and sent to the main control module 50, at this time, the main control module 50 detects that the fan 40 is in a working state, and after receiving the first detection result and the second detection result, the lighting module 30 is controlled to be turned on, and the brightness of the lighting module 30 is increased as much as possible, so that the user is prevented from operating under dark light, and the experience and the feeling of the user are improved. Or, if the main control module 50 detects that the fan 40 is in the shutdown state, it indicates that the user does not use the range hood, and at this moment, the main control module 50 still controls the lighting module 30 to turn on after receiving the first detection result and the second detection result, and turns down the luminance of the lighting module 30 as much as possible, and can serve as a night light, thereby providing illumination for the user and avoiding energy waste. In addition, if the first detection module 10 detects that no person is around the range hood, the main control module 50 can also directly control the lighting module 30 to turn off, so as to achieve the effect of energy saving. Therefore, the range hood in the embodiment can automatically control the lighting module to be turned on or turned off according to the external environment and the self condition, meets the requirement on illumination in the cooking process, and can also automatically adjust the brightness of the lighting module so as to meet the requirements on different brightness in various actual situations. The energy waste is avoided, the user requirements can be met more intelligently, and the control logic is more humanized and intelligent and is more scientific.

In the embodiment of the invention, the first detection module is arranged to detect whether people are around the range hood in real time and send a first detection result to the main control module, so that the main control module can know whether a user operates around the range hood; the second detection module detects the intensity of the ambient light of the range hood in real time and sends a second detection result to the main control module, so that the main control module can know the intensity of the ambient light of the current range hood; the main control module can detect the running state of the fan in real time. So, main control module can be according to receiving first testing result, the operating condition control lighting module of second testing result and fan that detects opens or closes, satisfy the demand to illumination under the different scenes, and automatically regulated lighting module's luminance in real time, further satisfy the different demands of user to luminance in various actual scenes, both avoided the waste of the energy, also make range hood more intelligent, range hood's function has been richened, control logic through more humanized, science and intellectuality satisfies user's multiple demand, user's product experience impression is improved.

It should be noted that, specific installation positions of the first detection module 10, the second detection module 20, and the illumination module 30 in the embodiment of the present invention may be adaptively set according to actual situations, and the embodiment of the present invention is not particularly limited to this.

Fig. 2 is a schematic diagram of a specific structure of a range hood according to an embodiment of the present invention, and as shown in fig. 2, fig. 2 exemplarily shows that a first detection module 10 and a second detection module 20 are disposed right in front of the range hood, so that the first detection module 10 can accurately detect whether people are around the range hood, and the second detection module 20 can accurately detect an ambient light intensity in front of the range hood, so as to accurately determine the light intensity. Meanwhile, the lighting module 30 is arranged below the range hood, so that the place with weaker light can be lighted, the user can see the color of the dishes in the pot during cooking clearly, and the use experience of the user is improved.

Optionally, the main control module 50 is configured to control the lighting module 30 to be turned on with a strong-grade brightness or a weak-grade brightness according to the second detection result and the working state of the fan 40 when the first detection result indicates that there is a person around the range hood, where the strong-grade brightness is higher than the weak-grade brightness.

It can be understood that the high-level brightness refers to a higher illumination intensity of the lighting module 30, the low-level brightness refers to a lower illumination intensity of the lighting module 30, and the high-level brightness or the low-level brightness may correspond to a specific brightness value or a brightness range, which is not particularly limited in this embodiment of the present invention.

Specifically, when receiving the first detection result, the main control module 50 obtains the second detection result and detects the current working state of the fan 40 when people are around the range hood, and controls the lighting module 30 to be turned on with high-grade brightness or turned on with low-grade brightness according to the second detection result and the working state of the fan 40, so that the range hood achieves an energy-saving effect, and the range hood is more intelligent. For example, if the second detection result is that the ambient light intensity is low and the fan 40 is in the running state, the main control module 50 controls the lighting module 30 to be turned on at a high brightness level, so as to avoid safety accidents caused by the operation of the user in an environment with weak light; if the second detection result is that the ambient light intensity is small and the fan 40 is in the stop state, the main control module 50 controls the lighting module 30 to be turned on with weak brightness, and the lighting module can be used as a night light, so that the experience of the user is improved.

Optionally, the second detection result includes that the ambient light intensity is smaller than the first preset value, and the working state of the fan 40 includes an operating state; the main control module 50 is configured to control the lighting module 30 to be turned on at a high-intensity level when the second detection result is that the ambient light intensity is smaller than the first preset value and the working state of the fan 40 is the running state.

The specific size of the first preset value is not specially limited, and a user can perform custom setting according to the self condition, so that the range hood is more intelligent.

Specifically, the second detection module 20 may detect the ambient light intensity in real time, compare the ambient light intensity with the first preset value, and when the ambient light intensity is greater than or less than the first preset value, it may be considered that the ambient light intensity of the current range hood is small, and has a certain influence on the normal activities of the user, and meanwhile, if the fan 40 is in an operating state, it may be considered that the current user is performing operations such as cooking. So, main control module 50 is according to the operating condition of the second testing result of receiving and the fan that detects, and control lighting module 30 opens with strong grade luminance to do benefit to the user and carry out operations such as culinary art, promote user's use and experience.

Optionally, the second detection result includes that the ambient illumination intensity is smaller than the first preset value and the ambient illumination intensity is greater than or equal to the first preset value, and the working state of the fan 40 includes an operating state and a stop state; the main control module 50 is configured to control the lighting module 30 to turn on at a low-level brightness when the second detection result is that the ambient illumination intensity is smaller than the first preset value and the working state of the fan 40 is the stop state; or, the main control module 50 is configured to control the lighting module 30 to turn on at a low level of brightness when the second detection result is that the ambient light intensity is greater than or equal to the first preset value and the working state of the fan 40 is the running state.

Specifically, the second detection module 20 can detect the ambient light intensity in real time, and compare it with the first default, when the second detection result is that the ambient light intensity is less than the first default, the main control module 50 continues to detect the operating condition of the fan 40 after receiving the second detection result, if the fan 40 is in the stop state this moment, it explains that the user only appears and moves around the range hood, and does not use the range hood to cook and other operations, thus, the main control module 50 can be according to the operating condition of the fan that receives the second detection result and detect, control the illumination module 30 to open with weak grade luminance, make the illumination module 30 realize the work of little night-light, provide certain light intensity for the user, in order to do benefit to the user and carry out other activities, and then promote user's use experience.

In addition, when the second detection result is that the ambient light intensity is greater than or equal to the first preset value, it can be considered that the ambient light intensity of the current range hood is high, and normal activities (such as washing and brushing) of the user in the kitchen cannot be affected. Meanwhile, the main control module 50 detects the working state of the fan 40 in real time, if the fan 40 is in the running state, the current user can be considered to be cooking and other operations, the main control module 50 can control the illumination module 30 to be turned on at a weak-grade brightness according to the second detection result received at the moment and the detected working state of the fan, auxiliary cooking illumination is carried out, so that the user can clearly observe the color of the domestic dish in the cooking process, and the use experience of the user is improved.

It should be noted that, the weak-range brightness of the corresponding lighting module under the above two different conditions may be the same brightness or different brightness, so that the oil smoke absorption can meet the user requirements under different scenes, and further the range hood is more intelligent and humanized.

Optionally, the second detection result includes that the ambient illumination intensity is greater than or equal to the first preset value, and the working state of the fan includes a stopped state; the main control module 50 is configured to control the lighting module 3 to turn off when the second detection result is that the ambient light intensity is greater than or equal to the first preset value and the working state of the fan 40 is the stop state.

Specifically, the second detection module 20 may detect the ambient light intensity in real time, and compare the ambient light intensity with the first preset value, when the second detection result is that the ambient light intensity is greater than or equal to the first preset value, it may be considered that the ambient light intensity of the current range hood is relatively large, if at this time, the main control module 50 detects that the fan 40 is in the stop state, the lighting module 30 is no longer required to perform auxiliary cooking lighting, and therefore, the main control module 50 controls the lighting module 30 to be turned off, so as to reduce energy waste, and achieve an energy saving effect.

Optionally, the second detection result further includes that the ambient illumination intensity is in different low illumination intensity ranges or different high illumination intensity ranges, the illumination intensity in each low illumination intensity range is smaller than the first preset value, and each high illumination intensity range is larger than or equal to the first preset value; the operating state of the fan 40 includes an operating state; the main control module 50 is configured to control the lighting module 30 to be turned on with different weak-range luminances or different strong-range luminances when the operating state of the fan 40 is the operating state and the second detection result is that the ambient light intensity is in different low-illumination intensity ranges or different high-illumination intensity ranges, where each weak-range luminance corresponds to each low-illumination intensity range one to one, and each strong-range luminance corresponds to each high-illumination intensity range one to one.

For example, the low illumination intensity range includes a first low illumination intensity range, a second low illumination intensity range, and a third low illumination intensity range, and the illumination intensities corresponding to the first low illumination intensity range, the second low illumination intensity range, and the third low illumination intensity range are sequentially reduced, and the first low illumination intensity range is smaller than a first preset value. If the main control module 50 detects that the fan 40 is in the running state, the lighting module 30 is controlled to be turned on at the high-grade brightness, so that the number of the high-grade brightness of the lighting module 30 is the same as the number of the low-illumination intensity ranges in the ambient illumination intensity. Illustratively, the first low illumination intensity range corresponds to a first high-level brightness of the lighting module 30, the second low illumination intensity range corresponds to a second high-level brightness of the lighting module 30, and the third low illumination intensity range corresponds to a third high-level brightness of the lighting module 30, when the illumination intensities corresponding to the first low illumination intensity range, the second low illumination intensity range, and the third low illumination intensity range decrease in sequence, the illumination intensities corresponding to the first high-level brightness, the second high-level brightness, and the third high-level brightness, which correspond to different low illumination intensity ranges one-to-one, increase in sequence.

Based on the same principle, the high illumination intensity range in the ambient illumination intensity may be multiple, which is not particularly limited in this embodiment, for example, the high illumination intensity range includes a first high illumination intensity range, a second high illumination intensity range and a third high illumination intensity range, the illumination intensities corresponding to the first high illumination intensity range, the second high illumination intensity range and the third high illumination intensity range are sequentially increased, and the first high illumination intensity range is greater than or equal to the first preset value. If the main control module 50 detects that the fan 40 is in the running state, the bright lighting module 30 is controlled to be turned on at the weak-gear brightness, so that the number of the weak-gear brightness of the lighting module 30 is the same as the number of the low illumination intensity ranges in the ambient illumination intensity. Illustratively, the first high illumination intensity range corresponds to a first weak-range luminance of the lighting module 30, the second high illumination intensity range corresponds to a second weak-range luminance of the lighting module 30, and the third high illumination intensity range corresponds to a third weak-range luminance of the lighting module 30, when the illumination intensities corresponding to the first high illumination intensity range, the second high illumination intensity range, and the third high illumination intensity range are sequentially increased, the illumination intensities of the first weak-range luminance, the second weak-range luminance, and the third weak-range luminance, which are one-to-one corresponding to different high illumination intensity ranges, are sequentially decreased.

Illustratively, when the first detection result detected by the first detection module 10 is that someone is around the range hood, the second detection result detected by the second detection module 20 is that the ambient light intensity is in the second low light intensity range, and the main control module 50 detects that the fan is in the running state, then the main control module 50 controls the lighting module 30 to be turned on at the second high-level brightness, so that the range hood can realize multi-level automatic adjustment of the brightness of the lighting module by setting the ambient light intensity to include different low light intensity ranges or different high light intensity ranges, and when the fan 40 is in the running state, the main control module 50 can control the lighting module 30 to be turned on at different low-level brightness or different high-level brightness, so as to meet the different requirements for brightness in various actual situations, thereby not only avoiding energy waste, but also more intelligently meeting the user requirements, the intelligent and energy-saving system is more intelligent and more energy-saving, and the use experience of the user is improved.

Optionally, the main control module 50 is further configured to control the lighting module 30 to turn off after no person is around the range hood and the duration time exceeds a first preset time.

The specific value of the first preset time is not particularly limited in the embodiments of the present invention, and the user may perform a user-defined setting, for example, the first preset time is 5 minutes.

Specifically, the first detection module 10 detects whether people are around the range hood in real time, and after it is determined that the first detection result is that no people are around the range hood and the duration time exceeds the first preset time, the first detection result is sent to the main control module 50, and after the main control module 50 receives the first detection result, the second detection result and the working state of the fan 40 do not need to be confirmed, so that the lighting module 30 can be directly controlled to be turned off, and the energy waste is avoided. In this embodiment, the first preset time is set to enable the main control module 50 to delay the turning off of the illumination module 30, so as to prevent the illumination module 30 from being frequently turned on or turned off, avoid the damage of the illumination module 30, and enable the range hood to be more intelligent.

Based on the same inventive concept, an embodiment of the present invention further provides a control method of a range hood, fig. 3 is a flowchart of the control method of the range hood provided by the embodiment of the present invention, as shown in fig. 3, applied to the range hood in any of the above embodiments, and the control method mainly includes the following steps:

s301, detecting whether people exist around the range hood, and generating a first detection result;

s302, detecting the ambient illumination intensity of the range hood and generating a second detection result;

s303, detecting the working state of the fan;

s304, controlling the lighting module to be turned on or off according to the first detection result, the second detection result and the working state of the fan, and adjusting the brightness of the lighting module.

Specifically, whether a user operates around the range hood can be known through detecting whether people exist around the range hood in real time and generating a first detection result; the intensity of the ambient illumination of the range hood is detected in real time, and a second detection result is generated, so that the intensity of the ambient illumination of the range hood can be known; the operating state of the fan is detected in real time, so that the range hood can control the lighting module to be turned on or turned off according to the detected first detection result, the second detection result and the operating state of the fan, the requirements for illumination under different scenes are met, the brightness of the lighting module is automatically adjusted in real time, different requirements of users on the brightness in various actual scenes are further met, energy waste is avoided, the range hood is more intelligent, functions of the range hood are enriched, various requirements of the users are met through more humanized, scientific and intelligent control logic, and experience of the users on products are improved.

Optionally, in step S304, when the first detection result is that there is a person around the range hood, the lighting module is controlled to be turned on with a strong-level brightness or a weak-level brightness according to the second detection result and the working state of the fan, where the strong-level brightness is higher than the weak-level brightness.

Specifically, when the first detection result is that there is a person around the range hood, the range hood can further control the lighting module to open with strong-grade brightness or open with weak-grade brightness according to the working state of the second detection result and the fan, so as to facilitate reaching the energy-saving effect of the range hood, make the range hood more intelligent, and promote the experience of the user.

Optionally, according to the second detection result and the working state of the fan, controlling the lighting module to be turned on at a high-level brightness or a low-level brightness includes: the second detection result comprises that the ambient illumination intensity is in different low illumination intensity ranges or different high illumination intensity ranges, the illumination intensity in each low illumination intensity range is lower than a first preset value, and each high illumination intensity range is larger than or equal to the first preset value; the working state of the fan comprises an operation state; when the working state of the fan is the running state and the second detection result is that the ambient light intensity is in different low light intensity ranges or different high light intensity ranges, the lighting module is controlled to be started with different weak-grade brightness or different strong-grade brightness, the weak-grade brightness corresponds to the low light intensity ranges one by one, and the strong-grade brightness corresponds to the high light intensity ranges one by one.

In this implementation, include different low illumination intensity scope or different high illumination intensity scope through setting up environment illumination intensity, and when the fan is in the running state, range hood can control lighting module and open with the weak grade luminance of difference or the strong grade luminance of difference, make range hood can realize the luminance of many gears automatically regulated lighting module, in order to satisfy the demand different to luminance under the various actual scenes, both avoided the energy waste, also can satisfy user's demand more intelligently, it is more intelligent and more energy-conserving, improve user's use and experience the impression.

To explain by a specific example, fig. 4 is a flowchart of a specific control method of a range hood according to an embodiment of the present invention, and as shown in fig. 4, the control method mainly includes the following steps:

s401, detecting whether people exist around the range hood.

Specifically, if someone is around the range hood, step S402 is executed; if no people are around the range hood, step S403 is executed.

S402, detecting whether the intensity of the ambient light of the range hood is smaller than a first preset value.

Specifically, if it is detected that the intensity of the ambient light of the range hood is smaller than a first preset value, step S404 is executed; if the detected ambient light intensity of the range hood is greater than or equal to the first preset value, step S405 is executed.

And S403, judging whether the duration of the unmanned environment around the range hood is longer than a first preset time.

Specifically, if the duration of the absence of people around the range hood is longer than the first preset time, step S408 is executed.

And S404, detecting the working state of the fan.

If the fan is in a working state, the operation such as cooking is performed at the moment, and then step S406 is executed; if the blower is in the stop state, step S407 is executed.

S405, detecting the working state of the fan.

If the fan is in the working state, it indicates that cooking and other operations are being performed at this time, and then step S407 is executed; if the blower is in the stop state, step S408 is executed.

S406, the illuminating lamp is automatically turned on to enhance the brightness.

S407, the lighting lamp automatically turns on the weak-gear brightness.

And S408, turning off the illuminating lamp.

In this embodiment, whether people exist around the range hood is detected in real time, then the ambient illumination intensity of the range hood is detected in real time when people exist, and the running state of the fan is detected in real time, so that the range hood can automatically control the lighting module to be turned on or turned off according to whether people exist around the range hood and the ambient illumination intensity of the range hood is smaller than a first preset value, and the current running state of the fan realizes automatic control of the lighting module to be turned on or turned off, and the brightness of the lighting module is automatically adjusted in real time, so that the range hood is more intelligent, and manual operation of a user is not needed. And after the duration time of no person around the range hood is detected to exceed a first preset time (for example, 5 minutes), the lighting module is controlled to be turned off so as to meet the requirements for illumination in different application scenes, energy waste is avoided, the user requirements can be met more intelligently, and the experience and the feeling of the product of the user are improved.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A range hood is characterized by comprising a first detection module, a second detection module, a lighting module, a fan and a main control module which is respectively and electrically connected with the first detection module, the second detection module, the lighting module and the fan;

the first detection module is used for detecting whether people exist around the range hood or not and sending a first detection result to the main control module;

the second detection module is used for detecting the ambient illumination intensity of the range hood and sending a second detection result to the main control module;

the main control module is used for detecting the working state of the fan; the main control module is further used for controlling the lighting module to be turned on or off and adjusting the brightness of the lighting module according to the first detection result, the second detection result and the working state of the fan.

2. The range hood of claim 1, wherein the main control module is configured to control the lighting module to turn on at a high-level brightness or a low-level brightness according to the second detection result and the working state of the fan when the first detection result indicates that people are around the range hood, and the high-level brightness is higher than the low-level brightness.

3. The range hood of claim 2, wherein the second detection result comprises that the ambient light intensity is less than a first preset value, and the working state of the fan comprises an operating state;

and the main control module is used for controlling the illumination module to be turned on by the strong-grade brightness when the second detection result indicates that the ambient illumination intensity is smaller than a first preset value and the working state of the fan is a running state.

4. The range hood of claim 2, wherein the second detection result comprises that the ambient light intensity is less than a first preset value and greater than or equal to the first preset value, and the working state of the fan comprises an operating state and a stopping state;

the main control module is used for controlling the illumination module to be started at the weak gear brightness when the second detection result indicates that the ambient illumination intensity is smaller than a first preset value and the working state of the fan is a stop state; or the main control module is used for controlling the illumination module to be turned on at the weak gear brightness when the second detection result is that the ambient illumination intensity is greater than or equal to a first preset value and the working state of the fan is a running state.

5. The range hood of claim 2, wherein the second detection result comprises that the ambient light intensity is greater than or equal to a first preset value, and the working state of the fan comprises a stop state;

and the main control module is used for controlling the lighting module to be turned off when the second detection result indicates that the ambient illumination intensity is greater than or equal to a first preset value and the working state of the fan is a stop state.

6. The range hood of claim 2, wherein the second detection result further comprises that the ambient light intensity is in different low light intensity ranges or different high light intensity ranges, the light intensity in each of the low light intensity ranges is less than a first preset value, and the light intensity in each of the high light intensity ranges is greater than or equal to the first preset value;

the working state of the fan comprises an operating state;

the main control module is used for controlling the lighting module to be started at different weak-gear brightness or different strong-gear brightness when the working state of the fan is the running state and the second detection result is that the ambient illumination intensity is in different low-illumination intensity ranges or different high-illumination intensity ranges, the weak-gear brightness corresponds to the low-illumination intensity ranges one by one, and the strong-gear brightness corresponds to the high-illumination intensity ranges one by one.

7. The range hood of claim 1, wherein the main control module is further configured to control the lighting module to turn off after the duration of the time exceeds a first preset time without a person around the range hood.

8. A control method of a range hood, which is applied to any one of the range hoods as claimed in claims 1 to 7, the control method comprising:

detecting whether people exist around the range hood or not and generating a first detection result;

detecting the intensity of ambient light of the range hood and generating a second detection result;

detecting the working state of the fan;

and controlling the lighting module to be turned on or off and adjusting the brightness of the lighting module according to the first detection result, the second detection result and the working state of the fan.

9. The control method of the range hood according to claim 8, wherein controlling the lighting module to be turned on or off according to the first detection result, the second detection result and the working state of the fan, and adjusting the brightness of the lighting module comprises:

and when the first detection result indicates that people are around the range hood, the lighting module is controlled to be turned on at a high-grade brightness or a low-grade brightness according to the second detection result and the working state of the fan, wherein the high-grade brightness is higher than the low-grade brightness.

10. The control method of the range hood according to claim 9, wherein controlling the lighting module to turn on at a high level brightness or a low level brightness according to the second detection result and the working state of the fan comprises:

the second detection result also comprises that the ambient illumination intensity is in different low illumination intensity ranges or different high illumination intensity ranges, the illumination intensity in each low illumination intensity range is lower than the first preset value, and each high illumination intensity range is larger than or equal to the first preset value;

the working state of the fan comprises an operating state;

the working state of the fan is the running state, and when the second detection result is that the ambient light intensity is in different low illumination intensity ranges or different high illumination intensity ranges, the lighting module is controlled to be turned on by different weak-grade brightness or different strong-grade brightness, each weak-grade brightness corresponds to each low illumination intensity range one to one, and each strong-grade brightness corresponds to each high illumination intensity range one to one.

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