CN-122015153-A - Control method of oil fume purifying equipment and oil fume purifying equipment

CN122015153ACN 122015153 ACN122015153 ACN 122015153ACN-122015153-A

Abstract

The invention discloses a control method of oil smoke purifying equipment and the oil smoke purifying equipment, wherein the oil smoke purifying equipment comprises a smoke collecting cover shell and an oil smoke detecting module, the control method firstly utilizes the oil smoke detecting module to emit detection light signals towards a corresponding furnace end, receives the light signals reflected by oil smoke particles corresponding to the furnace end, defines the light signals as reflected light signals, then recognizes that first-class user cooking actions exist according to the signal intensity of the reflected light signals, and finally eliminates the interference signal intensity corresponding to the first-class user cooking actions from the signal intensity of the reflected light signals within the duration range corresponding to the first-class user cooking actions so as to detect the oil smoke concentration in a target light curtain detection area correspondingly formed. By using the method, the oil smoke concentration is detected in the furnace end area, the interference existing in the cooking actions of the first type of users is eliminated, the detection information of the oil smoke concentration is more real-time and accurate, and the detection information is more close to the requirements of actual use.

Inventors

LIU RONG
BAI QINGSONG
YU FUQIANG
REN FUJIA
ZENG XIANWEI

Assignees

杭州老板电器股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260310

Claims (10)

1. The control method of the oil fume purifying equipment is characterized by comprising an oil fume collecting hood shell and an oil fume detecting module, wherein the oil fume collecting hood shell is arranged above a kitchen range, and the oil fume detecting module is arranged on one side of the oil fume collecting hood shell, which faces towards a burner of the kitchen range; The control method comprises the following steps: Transmitting a detection light signal towards the corresponding furnace end by utilizing the oil smoke detection module, enabling a target light curtain detection area formed by the oil smoke detection module to be aligned with the furnace end area, receiving the light signal reflected by oil smoke particles corresponding to the furnace end, and defining the light signal as a reflected light signal; Identifying that a first type of user cooking action exists according to the signal intensity of the reflected light signal, wherein the first type of user cooking action at least comprises a hand waving action, a pot releasing and moving action and a pot releasing and pot holding action; And in the duration range corresponding to the first type of user cooking actions, removing the interference signal intensity corresponding to the first type of user cooking actions from the signal intensity of the reflected light signal so as to detect the oil smoke concentration in the target light curtain detection area formed correspondingly.
2. The control method of claim 1, wherein identifying the presence of a first type of user cooking action based on the signal strength of the reflected light signal comprises: determining the change rate of the signal intensity of the reflected light signal according to the signal intensity of the reflected light signal; Acquiring a first duration time in a first preset time range when the signal intensity change rate of the reflected light signal is greater than or equal to a preset change rate threshold value, wherein the first duration time is the duration time when the signal intensity change rate of the reflected light signal is greater than or equal to the preset change rate threshold value; And when the first duration is smaller than a preset duration threshold value, determining that the first type of user cooking action exists.
3. The control method according to claim 2, characterized in that, when the signal intensity change rate of the reflected light signal is greater than or equal to a preset change rate threshold, after acquiring the first duration within the first preset time range, further comprising: Determining that a second type of user cooking action exists when the first duration is greater than or equal to the preset duration threshold, wherein the second type of user cooking action at least comprises stir-frying action; And determining the target oil smoke concentration in the target light curtain detection area formed correspondingly according to the signal intensity of the reflected light signal and the preset mapping relation between the signal intensity of the reflected light signal and the oil smoke concentration in the duration range corresponding to the second-class user cooking action.
4. The control method of claim 1, wherein excluding the interference signal intensity corresponding to the first type of user cooking action from the signal intensity of the reflected light signal over the duration corresponding to the first type of user cooking action to detect the soot concentration in the target light curtain detection region formed accordingly comprises: acquiring the signal intensity of the reflected light signal corresponding to the starting moment of the duration range corresponding to the first type of user cooking action, and defining the signal intensity as target signal intensity; Modifying the signal intensity of the reflected light signal corresponding to each time between the starting time and the ending time of the duration range corresponding to the first type of user cooking action to be the target signal intensity; and determining the target oil smoke concentration in the target light curtain detection area formed correspondingly according to the target signal intensity and the preset mapping relation between the signal intensity of the reflected light signal and the oil smoke concentration in the duration range corresponding to the first type of user cooking action.
5. The control method according to claim 1, wherein the detecting light signal is emitted toward the corresponding burner by the fume detecting module, and the target light curtain detecting area formed by the fume detecting module is aligned with the burner area, and the light signal reflected by the fume particles corresponding to the burner is received and defined as a reflected light signal, and further comprising: Identifying that no user cooking action exists according to the signal intensity of the reflected light signal; and determining the target oil smoke concentration in the target light curtain detection area formed correspondingly according to the signal intensity of the reflected light signal and the preset mapping relation between the signal intensity of the reflected light signal and the oil smoke concentration.
6. The control method of claim 5, wherein identifying the absence of a user cooking action based on the signal strength of the reflected light signal comprises: determining the change rate of the signal intensity of the reflected light signal according to the signal intensity of the reflected light signal; And when the change rate of the signal intensity of the reflected light signal is smaller than a preset change rate threshold value, according to the absence of the cooking action of the user.
7. The control method according to claim 1, wherein after recognizing the presence of a first type of user cooking action based on the signal strength of the reflected light signal, further comprising: determining an action type of the first type of user cooking action; And constructing a user cooking habit database according to the duration range and the time sequence corresponding to each action type.
8. A fume purification apparatus, characterized by performing a control method of the fume purification apparatus according to any one of claims 1 to 7; the oil fume purifying device comprises an oil fume collecting hood shell, an oil fume detecting module and a controller, wherein the oil fume collecting hood shell is arranged above a kitchen range, and the oil fume detecting module is arranged on one side of the oil fume collecting hood shell, which faces towards a burner of the kitchen range; The controller is electrically connected with the oil smoke detection module, and is used for utilizing the oil smoke detection module to emit detection light signals towards the corresponding stove head, a target light curtain detection area formed by the oil smoke detection module correspondingly aims at the stove head area, receives the light signals reflected by oil smoke particles corresponding to the stove head and defines the light signals as reflected light signals, and recognizes that first-class user cooking actions exist according to the signal intensity of the reflected light signals, wherein the first-class user cooking actions at least comprise a hand waving action, a pot placing and moving action and a pot placing and cover taking action, and interference signal intensity corresponding to the first-class user cooking actions is eliminated from the signal intensity of the reflected light signals within a duration time range corresponding to the first-class user cooking actions so as to detect the oil smoke concentration in the correspondingly formed target light curtain detection area.
9. The fume purification apparatus of claim 8, wherein said fume detection module comprises a signal emitter, a first optical lens assembly, and a signal receiver; the signal transmitter is used for transmitting an initial light signal towards the corresponding furnace end; The first optical lens assembly is positioned on the propagation path of the initial light signal, and is used for carrying out collimation treatment on the initial light signal so as to obtain a parallel emergent detection light signal, and the target light curtain detection area is correspondingly formed; The signal receiver is used for receiving light signals reflected by the oil smoke particles corresponding to the furnace end.
10. The oil fume purification apparatus according to claim 8, wherein two of said burners are provided on said kitchen range, and two of said oil fume detection modules are provided on said fume collecting hood housing; The two oil smoke detection modules are respectively and correspondingly arranged towards the two furnace heads, the two oil smoke detection modules alternately emit the detection light signals towards the two furnace heads, and the light signals reflected by the oil smoke particles corresponding to the furnace heads are received.

Description

Control method of oil fume purifying equipment and oil fume purifying equipment Technical Field The embodiment of the invention relates to the technical field of intelligent home, in particular to a control method of oil fume purifying equipment and the oil fume purifying equipment. Background The range hood is used as a necessary household appliance for modern kitchens, can effectively discharge cooking fume and improves the environmental quality of the kitchen. With the continuous development of intelligent household technology, the range hood is gradually updated to be intelligent and automatic, and the functions are also more and more abundant. Wherein, realize automatic start-stop, air quantity regulation etc. coordinated control according to the oil smoke concentration, become the important development direction of intelligent range hood. Most intelligent range hoods on the market at present detect the concentration of oil smoke in a kitchen through an oil smoke sensor and execute corresponding control logic based on the oil smoke concentration. However, such detection schemes are mainly used for uniformly detecting the whole kitchen environment, even if the oil smoke detection is performed on the burner area of the kitchen range, the interference of the cooking actions of the user cannot be avoided, the accuracy and the instantaneity are poor, the cooking states and the oil smoke generation amounts of different burners cannot be distinguished, and the oil smoke condition generated in the current cooking process is difficult to be directly and clearly reflected. Because the accurate oil smoke detection to the furnace end area can not be realized, the intelligent range hood is difficult to refine, targeted air quantity adjustment and intelligent control, the smoke discharging effect is not only influenced, but also the use experience of a user is reduced. Therefore, the problems of low detection precision, extensive control mode and the like still exist in the prior art, and the requirements of users on efficient, accurate and intelligent smoke discharge cannot be met. Disclosure of Invention The embodiment of the invention provides a control method of oil smoke purifying equipment and the oil smoke purifying equipment, which are used for detecting the oil smoke concentration in a furnace end area, and removing the interference signal intensity corresponding to the cooking actions of a first type of users from the signal intensity of a reflected light signal, wherein the detection information of the oil smoke concentration has more real-time performance and accuracy and is more close to the requirement of actual use. In a first aspect, the embodiment of the invention provides a control method of oil fume purifying equipment, which comprises an oil fume collecting hood shell and an oil fume detecting module, wherein the oil fume collecting hood shell is arranged above a kitchen range, and the oil fume detecting module is arranged on one side of the oil fume collecting hood shell, which faces towards a burner of the kitchen range; The control method comprises the following steps: Transmitting a detection light signal towards the corresponding furnace end by utilizing the oil smoke detection module, enabling a target light curtain detection area formed by the oil smoke detection module to be aligned with the furnace end area, receiving the light signal reflected by oil smoke particles corresponding to the furnace end, and defining the light signal as a reflected light signal; Identifying that a first type of user cooking action exists according to the signal intensity of the reflected light signal, wherein the first type of user cooking action at least comprises a hand waving action, a pot releasing and moving action and a pot releasing and pot holding action; And in the duration range corresponding to the first type of user cooking actions, removing the interference signal intensity corresponding to the first type of user cooking actions from the signal intensity of the reflected light signal so as to detect the oil smoke concentration in the target light curtain detection area formed correspondingly. Optionally, identifying the presence of a first type of user cooking action based on the signal strength of the reflected light signal comprises: determining the change rate of the signal intensity of the reflected light signal according to the signal intensity of the reflected light signal; Acquiring a first duration time in a first preset time range when the signal intensity change rate of the reflected light signal is greater than or equal to a preset change rate threshold value, wherein the first duration time is the duration time when the signal intensity change rate of the reflected light signal is greater than or equal to the preset change rate threshold value; And when the first duration is smaller than a preset duration threshold value, determining that the first type of user cooking action exists.