CN-122015151-A - Self-cleaning control method, system and equipment for range hood and storage medium

CN122015151ACN 122015151 ACN122015151 ACN 122015151ACN-122015151-A

Abstract

The method identifies key nodes with obvious solidification boundaries and oil stain characteristics in an air duct of the range hood by collecting oil fume flow data in the air duct of the range hood so as to determine key targets in subsequent cleaning treatment. And quantifying the oil stain degree of each key node by further analyzing the temperature gradient characteristics corresponding to the solidification boundary, so that the key nodes with different oil stains can be subjected to differentiation treatment during subsequent cleaning treatment. And for each key node, determining a matched cleaning demand index according to the actual oil pollution degree, determining a nozzle cleaning priority sequence based on the matched cleaning demand index, and generating a corresponding control signal to implement a differential cleaning strategy. The purpose of the preferential strengthening treatment of the heavy accumulation area can be achieved, so that the nozzle cleaning system can focus on the relevant area with serious oil stains in the air duct to perform important cleaning on the relevant area, and the cleaning effect is guaranteed.

Inventors

FEI BENKAI
FU ANRONG
RUAN HUAPING
REN FUJIA

Assignees

杭州老板电器股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260210

Claims (10)

1. The self-cleaning control method of the range hood is characterized by comprising the following steps of: collecting oil smoke flow data in an air duct of the range hood, and determining a solidification boundary and key nodes according to the oil smoke flow data; Determining the oil contamination degree of the key node according to the temperature gradient characteristics corresponding to the solidification boundary; Determining cleaning requirement indexes of the key nodes based on the oil contamination degree, and determining a corresponding nozzle cleaning priority sequence by integrating each cleaning requirement index; And generating a corresponding control signal according to the nozzle cleaning priority sequence so as to drive a nozzle cleaning system to execute air duct cleaning according to the control signal.
2. The range hood self-cleaning control method of claim 1, wherein the fume flow data includes fume temperature data and fume flow rate data, and correspondingly, the determining a solidification boundary and a key node according to the fume flow data includes: determining the oil smoke viscosity value of each test point in the air duct according to the oil smoke temperature data and the oil smoke flow rate data, and determining the viscosity change rate corresponding to the adjacent test points; Determining corresponding viscosity mutation points in response to the viscosity change rate corresponding to the adjacent test points exceeding a preset change rate threshold, and determining a solidification boundary by integrating all the viscosity mutation points; determining target nodes on the contour lines corresponding to the solidification boundaries, and determining a fluid separation area according to the geometric parameters of the section of the air duct and the flow velocity vector corresponding to each target node; determining deposition density distribution data according to the oil fume residence time and the oil stain deposition thickness in the fluid separation area; And determining a density abrupt change boundary point based on a gradient operation result of the deposition density distribution data, and determining the key node by performing space matching according to the density abrupt change boundary point and a preset geometric structure of the air duct.
3. The self-cleaning control method of a range hood according to claim 1, wherein the determining the oil contamination degree of the key node according to the temperature gradient characteristic corresponding to the solidification boundary comprises: for each target node on the solidification boundary, determining the temperature change rate of the target node according to the temperature difference value of two adjacent nodes of the target node and the node distance; determining that the corresponding target node is a temperature conversion node in response to the temperature change rate meeting a preset change condition; Constructing a temperature distribution matrix for determining the temperature gradient characteristics of the solidification boundary according to the temperature time sequence data of the temperature conversion node in a preset range; Mapping the temperature value in the temperature distribution matrix into a gray value to obtain a temperature gray image, and determining the contrast of the temperature conversion node by integrating the contrast of adjacent pixel point pairs in the temperature gray image; Determining the corresponding viscosity change rate according to the contrast of each temperature conversion node, and determining the average value of the viscosity change rates of the key nodes corresponding to the temperature conversion nodes in a target range; Determining the oil stain thickness increasing rate of the key node according to the average value and the deposition rate proportionality coefficient in response to the average value of the viscosity change rate exceeding a preset threshold value; And determining the oil stain accumulated thickness according to the oil stain thickness increasing rate and the oil fume residence time, and determining the oil stain degree of the key node based on the oil stain accumulated thickness.
4. The self-cleaning control method of a range hood according to claim 1, wherein determining the cleaning requirement indexes of the key nodes based on the oil contamination degree, and integrating each cleaning requirement index to determine a corresponding nozzle cleaning priority sequence, comprises: determining a corresponding association feature matrix according to the pollution level and the cleaning strength of the key nodes; Determining a cleaning requirement index of the key node according to the association characteristic matrix and the oil stain degree; and responding to the cleaning requirement indexes exceeding a preset cleaning threshold, determining the corresponding key nodes as priority cleaning nodes, and determining a nozzle cleaning priority sequence by integrating the cleaning requirement indexes of all the priority cleaning nodes.
5. The range hood self-cleaning control method according to any one of claims 1 to 4, further comprising: and determining the jet coverage area of the key node, and determining the actual contact rate according to the cleaning liquid flow value of the jet coverage area so as to optimize the nozzle cleaning priority sequence according to the actual contact rate.
6. The self-cleaning control method of a range hood according to claim 5, wherein said determining the jet coverage area of the critical node, determining an actual contact rate according to a cleaning flow value of the jet coverage area, to optimize the nozzle cleaning priority sequence according to the actual contact rate, comprises: determining the spraying distance and the spraying angle between the center of the nozzle and each key node corresponding to the nozzle cleaning priority sequence; determining a spraying coverage area corresponding to the key node according to the spraying distance and the spraying angle; Determining a cleaning fluid flow value based on the oil stain thickness and the cleaning fluid permeability coefficient in the spray coverage area; determining the cleaning solution coverage density of the key node according to the cleaning solution flow value, and determining the actual contact rate based on the cleaning solution coverage density; And determining the corresponding priority cleaning node as a first-stage cleaning node in response to the actual contact rate being greater than or equal to a preset solidification oil stain dissolution threshold value, and integrating all the first-stage cleaning nodes to optimize the nozzle cleaning priority sequence.
7. The range hood self-cleaning control method of claim 6, wherein the optimizing the nozzle cleaning priority sequence according to the actual contact rate further comprises: and determining the corresponding priority cleaning node as a secondary cleaning node in response to the actual contact rate being smaller than a preset solidification oil stain dissolution threshold value, and adjusting the cleaning strength corresponding to the secondary cleaning node to optimize the nozzle cleaning priority sequence.
8. A range hood self-cleaning control system, the system comprising: The data acquisition module is used for acquiring oil smoke flow data in the air duct of the range hood and determining a solidification boundary and key nodes according to the oil smoke flow data; The oil stain degree determining module is used for determining the oil stain degree of the key node according to the temperature gradient characteristics corresponding to the solidification boundary; The cleaning requirement determining module is used for determining the cleaning requirement indexes of the key nodes based on the oil pollution degree, and determining a corresponding nozzle cleaning priority sequence by integrating each cleaning requirement index; and the control module is used for generating a corresponding control signal according to the nozzle cleaning priority sequence so as to drive the nozzle cleaning system to execute air duct cleaning according to the control signal.
9. An electronic device, comprising: and a memory coupled to the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions being executable by the at least one processor to enable the at least one processor to perform the method of claim 1 7, The self-cleaning control method of the range hood.
10. A non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the range hood self-cleaning control method according to any one of claims 1 to 7.

Description

Self-cleaning control method, system and equipment for range hood and storage medium Technical Field The disclosure relates to the technical field of range hood cleaning, in particular to a self-cleaning control method, a self-cleaning control system, self-cleaning control equipment and a storage medium for a range hood. Background Along with the continuous improvement of daily cleaning demands of consumers on kitchens, how to improve the cleaning effect of the range hood gradually becomes an important index for measuring the performance of products. In the related art, a nozzle cleaning system is arranged in an air duct of the range hood, and the nozzle cleaning system adopts a uniform spraying mode to spray cleaning liquid so as to achieve the cleaning purpose of the range hood. But be limited to the oil stain state of different positions in the lampblack absorber wind channel probably different, nozzle cleaning system adopts unified injection mode to be difficult to reach effective cleanness to different oil stain states, and for example the wind channel region that oil stain solidification degree is higher is compared with the wind channel region that oil stain solidification degree is lower and is appeared wasing the condition thoroughly easily to influence the life of equipment. Disclosure of Invention The disclosure provides a self-cleaning control method, a self-cleaning control device, self-cleaning control equipment and a storage medium for a range hood, so as to at least solve the technical problems in the prior art. In a first aspect of the present disclosure, a self-cleaning control method for a range hood is provided, the method including: collecting oil smoke flow data in an air duct of the range hood, and determining a solidification boundary and key nodes according to the oil smoke flow data; Determining the oil contamination degree of the key node according to the temperature gradient characteristics corresponding to the solidification boundary; Determining cleaning requirement indexes of the key nodes based on the oil contamination degree, and determining a corresponding nozzle cleaning priority sequence by integrating each cleaning requirement index; And generating a corresponding control signal according to the nozzle cleaning priority sequence so as to drive a nozzle cleaning system to execute air duct cleaning according to the control signal. In an embodiment, the fume flow data includes fume temperature data and fume flow rate data, and accordingly, the determining the solidification boundary and the key node according to the fume flow data includes: determining the oil smoke viscosity value of each test point in the air duct according to the oil smoke temperature data and the oil smoke flow rate data, and determining the viscosity change rate corresponding to the adjacent test points; Determining corresponding viscosity mutation points in response to the viscosity change rate corresponding to the adjacent test points exceeding a preset change rate threshold, and determining a solidification boundary by integrating all the viscosity mutation points; determining target nodes on the contour lines corresponding to the solidification boundaries, and determining a fluid separation area according to the geometric parameters of the section of the air duct and the flow velocity vector corresponding to each target node; determining deposition density distribution data according to the oil fume residence time and the oil stain deposition thickness in the fluid separation area; And determining a density abrupt change boundary point based on a gradient operation result of the deposition density distribution data, and determining the key node by performing space matching according to the density abrupt change boundary point and a preset geometric structure of the air duct. In an embodiment, the determining the oil contamination degree of the key node according to the temperature gradient feature corresponding to the solidification boundary includes: for each target node on the solidification boundary, determining the temperature change rate of the target node according to the temperature difference value of two adjacent nodes of the target node and the node distance; determining that the corresponding target node is a temperature conversion node in response to the temperature change rate meeting a preset change condition; Constructing a temperature distribution matrix for determining the temperature gradient characteristics of the solidification boundary according to the temperature time sequence data of the temperature conversion node in a preset range; Mapping the temperature value in the temperature distribution matrix into a gray value to obtain a temperature gray image, and determining the contrast of the temperature conversion node by integrating the contrast of adjacent pixel point pairs in the temperature gray image; Determining the corresponding viscosity change rate according to the con