Range hood control method, system, device and storage medium

Abstract

The present invention provides a control method, system, device and storage medium for a range hood, the control method comprising: obtaining a first image including a smoke inlet captured by a detection device, obtaining a pre-stored reference image of the smoke inlet when the smoke shield is opened at multiple angles, and obtaining a preset correspondence between the angle position of the smoke shield opening and the angle of the air outlet; wherein the air outlet angle is the opening angle of the air outlet of the air supply mechanism; and setting the air outlet angle according to the first image, the smoke inlet reference image and the corresponding relationship, so that the air outlet range of the air supply mechanism is above the upper end position of the smoke inlet. The present invention adds an air supply mechanism at the gap, so that the air supply mechanism forms an air curtain at the gap, thereby preventing oil smoke from leaking out and spreading to other areas to cause environmental pollution and other problems, improving the effect of the range hood in absorbing oil smoke, and taking into account energy conservation while ensuring the air curtain effect.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a control method, system, device and storage medium for a range hood. Background Art

[0002] Current household range hoods, such as close-suction range hoods, operate by opening a baffle to collect and remove fumes. However, for reasons such as the structural safety of the baffle's movement mechanism, a gap typically exists between the baffle and the entire housing. Consequently, when cooking with heavy fumes, there's a risk of smoke escaping through the gap between the baffle and the entire unit. This can be extremely frustrating for the user experience, and currently, no range hoods on the market have implemented measures to address this issue.

[0003] Some products add flexible parts such as rubber strips in the gap to prevent the smoke from escaping from the gap, but this design also has many defects, such as:

[0004] First, the shield will be opened and closed a lot during the entire product life cycle, and the sealing effect of the rubber strip in the gap after a large number of shield openings and closings is questionable;

[0005] Secondly, the shield is exposed to high temperatures in the user's cooking environment for a long time, and the rubber material may deform over time, which may affect the reliability of the sealing structure.

[0006] Finally, there will be color differences between the rubber strips and the overall exterior parts and glass of the machine, which will reduce the refinement of the overall appearance of the machine and affect the high-end feel of the product.

[0007] Therefore, the problem of smoke overflowing from the gap when the range hood inhales smoke needs to be solved urgently. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the defect of smoke overflowing from the gap of the range hood in the prior art, and to provide a control method, system, device and storage medium for the range hood.

[0009] The present invention solves the above technical problems through the following technical solutions:

[0010] The present invention provides a control method for a range hood, the control method comprising:

[0011] Obtaining a first image including the smoke inlet captured by the detection device, obtaining a pre-stored reference image of the smoke inlet with the smoke shield opened at multiple angles, and obtaining a preset correspondence between the angles of the smoke shield opened and the angles of the air outlet; wherein the air outlet angle is the opening angle of the air outlet of the air supply mechanism;

[0012] The air outlet angle is set according to the first image, the smoke inlet reference image and the corresponding relationship so that the air outlet range of the air supply mechanism is above the upper end position of the smoke inlet.

[0013] Preferably, the setting of the air outlet angle according to the first image, the smoke inlet reference image and the corresponding relationship includes:

[0014] determining a current angular position of the smoke baffle at which the smoke baffle is opened according to the first image and the smoke inlet reference image;

[0015] Determining a target air outlet angle according to the current angle position and the corresponding relationship;

[0016] The air outlet angle is set according to the target air outlet angle so that the air outlet angle reaches the target air outlet angle.

[0017] Preferably, the setting of the air outlet angle includes:

[0018] Set the inclination angle of the air guide of the air supply mechanism.

[0019] Preferably, after the step of setting the air outlet angle according to the first image, the smoke inlet reference image and the corresponding relationship, the control method further comprises:

[0020] Get the current smoke grayscale value, current range hood gear, and stove firing status;

[0021] The operating current of the multiple air supply parts of the air supply mechanism is controlled according to the oil fume ash value, the current range hood gear and the firing state of the stove.

[0022] Preferably, the controlling of the operating currents of the multiple air supply parts of the air supply mechanism according to the oil fume grayscale value, the current range hood gear position and the stove firing state includes:

[0023] When the oil smoke grayscale value is greater than a preset grayscale threshold and the current range hood gear is greater than a preset gear, the operating current of the air supply unit corresponding to the burning stove is set to a first current value, and the operating current of the air supply unit corresponding to the unburned stove is set to a second current value; wherein the first current value is greater than the second current value;

[0024] When the oil smoke grayscale value is greater than the grayscale threshold and the current range hood gear is less than or equal to the preset gear, the operating current of all air supply parts is set to the first current value;

[0025] When the oil smoke grayscale value is less than or equal to the grayscale threshold and the current range hood gear is greater than the preset gear, the operating current of all air supply parts is set to a preset third current value; wherein the third current value is less than the second current value;

[0026] When the oil fume grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, the working current of the air supply part corresponding to the burning stove is set to the second current value, and the working current of the air supply part corresponding to the unburned stove is set to the third current value.

[0027] Preferably, the stove firing state includes: the left stove firing, the right stove firing, and the left and right stoves firing simultaneously;

[0028] The operating current of the air supply unit corresponding to the stove that is on is set to a first current value, and the operating current of the air supply unit corresponding to the stove that is not on is set to a second current value, including:

[0029] When the left stove is on, the operating current of the left air supply unit is set to the first current value, and the operating current of the right air supply unit is set to the second current value;

[0030] When the stove is in the right stove on state, the operating current of the right air supply unit is set to the first current value, and the operating current of the left air supply unit is set to the second current value;

[0031] When the stove is in the firing state of both the left and right stoves firing simultaneously, the operating currents of the left and right air supply parts are both set to the first current value;

[0032] The operating current of the air supply unit corresponding to the burning stove is set to the second current value, and the operating current of the air supply unit corresponding to the unburned stove is set to the third current value, including:

[0033] When the left stove is on, the operating current of the left air supply unit is set to the second current value, and the operating current of the right air supply unit is set to the third current value.

[0034] When the stove is in the right stove on state, the operating current of the right air supply unit is set to the second current value, and the operating current of the left air supply unit is set to the third current value;

[0035] When the stove is in the firing state of the left and right stoves firing at the same time, the working currents of the left and right air supply parts are both set to the second current value.

[0036] Preferably, obtaining the currently generated oil smoke gray value includes:

[0037] Acquire a second image including the stove head captured by the detection device;

[0038] The soot grayscale value is obtained by calculation according to the second image.

[0039] The present invention also provides a range hood control system, the control system comprising:

[0040] an acquisition module, configured to acquire a first image including the smoke inlet captured by the detection device, acquire a pre-stored reference image of the smoke inlet when the smoke shield is opened at multiple angles, and acquire a preset correspondence between the angle position of the smoke shield opening and the angle of the air outlet; wherein the air outlet angle is the opening angle of the air outlet of the air supply mechanism;

[0041] An air outlet angle setting module is used to set the air outlet angle according to the first image, the smoke inlet reference image and the corresponding relationship so that the air outlet range of the air supply mechanism is above the upper end position of the smoke inlet.

[0042] Preferably, the air outlet angle setting module is further configured to determine the current opening angle position of the smoke baffle according to the first image and the smoke inlet reference image;

[0043] The air outlet angle setting module is further configured to determine a target air outlet angle based on the current angle position and the corresponding relationship;

[0044] The air outlet angle setting module is further configured to set the air outlet angle according to the target air outlet angle so that the air outlet angle reaches the target air outlet angle.

[0045] Preferably, the air outlet angle setting module is also used to set the inclination angle of the guide member of the air supply mechanism.

[0046] Preferably, the control system further comprises: a working current control module;

[0047] The acquisition module is further used to obtain the currently generated oil smoke gray value, the current range hood gear position and the stove firing state;

[0048] The working current control module is used to control the working current of the multiple air supply parts of the air supply mechanism according to the oil fume ash value, the current range hood gear and the firing state of the stove.

[0049] Preferably, the operating current control module is further configured to, when the oil smoke grayscale value is greater than a preset grayscale threshold and the current range hood gear is greater than a preset gear, set the operating current of the air supply unit corresponding to the burning stove head to a first current value, and set the operating current of the air supply unit corresponding to the unburned stove head to a second current value; wherein the first current value is greater than the second current value;

[0050] The working current control module is further configured to set the working current of all air supply parts to the first current value when the oil smoke gray value is greater than the gray threshold and the current range hood gear is less than or equal to the preset gear;

[0051] The operating current control module is further configured to set the operating current of all air supply parts to a preset third current value when the oil smoke grayscale value is less than or equal to the grayscale threshold and the current range hood gear is greater than the preset gear; wherein the third current value is less than the second current value;

[0052] The working current control module is also used to set the working current of the air supply part corresponding to the burning stove to the second current value, and set the working current of the air supply part corresponding to the unburned stove to the third current value when the oil fume grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear.

[0053] Preferably, the stove firing state includes: the left stove firing, the right stove firing, and the left and right stoves firing simultaneously;

[0054] The operating current control module is further configured to set the operating current of the left air supply unit to the first current value and the operating current of the right air supply unit to the second current value when the oil smoke grayscale value is greater than a preset grayscale threshold and the current range hood gear is greater than a preset gear, and when the stove is in the left stove firing state;

[0055] The operating current control module is further configured to set the operating current of the right air supply unit to the first current value and the operating current of the left air supply unit to the second current value when the oil smoke grayscale value is greater than a preset grayscale threshold and the current range hood gear is greater than a preset gear, and when the stove is in the right stove firing state;

[0056] The operating current control module is further configured to set the operating currents of the left and right air supply parts to the first current value when the oil smoke grayscale value is greater than a preset grayscale threshold and the current range hood gear is greater than a preset gear, and when the stove is in a firing state where both left and right stoves are firing simultaneously;

[0057] The operating current control module is further configured to set the operating current of the left air supply unit to the second current value and the operating current of the right air supply unit to the third current value when the oil smoke grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, and when the stove is in the left stove firing state;

[0058] The operating current control module is further configured to set the operating current of the right air supply unit to the second current value and the operating current of the left air supply unit to the third current value when the oil smoke grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, and when the stove is in the right stove firing state;

[0059] The working current control module is also used to set the working current of the left and right air supply parts to the second current value when the oil fume grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, and when the stove is in the firing state with the left and right stoves firing at the same time.

[0060] Preferably, the acquisition module is further used to acquire a second image containing the stove head collected by the detection device;

[0061] The acquisition module is further configured to calculate the oil smoke grayscale value based on the second image.

[0062] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the aforementioned range hood control method when executing the computer program.

[0063] The present invention also provides a computer-readable storage medium having a computer program stored thereon, and the computer program implements the aforementioned range hood control method when executed by a processor.

[0064] The positive progress effect of the present invention is:

[0065] By adding an air supply mechanism at the gap and arranging the air supply mechanism on the side of the baffle plate close to the air inlet, the air supply mechanism forms an air curtain at the gap, which, on the one hand, prevents oil smoke from leaking out of the gap and spreading to other areas, causing environmental pollution and other problems; on the other hand, the oil smoke is blown into the air inlet through the air curtain, thereby improving the effect of the range hood in absorbing oil smoke; by adding an air supply mechanism at the gap and arranging the air supply mechanism on the side of the baffle plate away from the air inlet, and arranging the air supply port toward the gap, the air curtain "blocks" the gap, thereby preventing oil smoke from leaking out of the gap and spreading to other areas, causing environmental pollution and other problems; ensuring the comprehensiveness of the range hood in absorbing oil smoke, enhancing the cleanliness of the kitchen environment, and improving the comfort of users using the range hood, while ensuring the effect of the air curtain and taking energy saving into account. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 This is a flow chart of a range hood control method according to embodiment 1 of the present invention.

[0067] Figure 2This is a schematic diagram of the overall structure of a range hood according to a range hood control method of embodiment 1 of the present invention.

[0068] Figure 3 This is a schematic diagram of the overall structure of a range hood from another perspective, illustrating the range hood control method according to Example 1 of the present invention.

[0069] Figure 4 This is a side cross-sectional view of a range hood according to a range hood control method of embodiment 1 of the present invention.

[0070] Figure 5 This is a side cross-sectional view of a range hood from another perspective, illustrating the range hood control method according to embodiment 1 of the present invention.

[0071] Figure 6 This is a simplified diagram of the gas flow of a range hood according to the range hood control method of Example 1 of the present invention.

[0072] Figure 7 This is an external schematic diagram of the air supply mechanism of the range hood control method according to embodiment 1 of the present invention.

[0073] Figure 8 This is a schematic diagram of the internal structure of the air supply mechanism of the range hood control method according to embodiment 1 of the present invention.

[0074] Figure 9 This is a flowchart of a specific implementation of step S12 of the range hood control method according to embodiment 1 of the present invention.

[0075] Figure 10 This is a flow chart of a specific implementation of the range hood control method according to Example 1 of the present invention.

[0076] Figure 11 This is a flowchart of a specific implementation of step S14 of the range hood control method according to embodiment 1 of the present invention.

[0077] Figure 12 This is a module diagram of a range hood control system according to embodiment 2 of the present invention.

[0078] Figure 13 This is a schematic structural diagram of an electronic device according to embodiment 3 of the present invention. DETAILED DESCRIPTION

[0079] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0080] Example 1

[0081] This embodiment provides a control method for a range hood, referring to Figure 1 , control methods include:

[0082] S11. Obtain a first image of the smoke inlet captured by a detection device, obtain a pre-stored reference image of the smoke inlet with the smoke deflector at multiple open angles, and obtain a preset correspondence between the open angles of the smoke deflector and the angles of the air outlet. The air outlet angle is the opening angle of the air outlet of the air supply mechanism.

[0083] S12. Setting the angle of the air outlet according to the first image, the smoke inlet reference image, and the corresponding relationship, so that the air outlet range of the air supply mechanism is above the upper end position of the smoke inlet.

[0084] Among them, such as Figure 2-Figure 6 As shown, the range hood 100 includes a housing 11 and a shielding plate 12, and an air inlet 13 is formed on the housing 11. A gap 16 is formed between the housing 11 and the shielding plate 12. In this embodiment, the shielding plate 12 is rotatably arranged on the housing 11 by a rotating mechanism 18 to open and close the air inlet 13. Therefore, during the rotation of the shielding plate 12, a gap 16 is formed near the rotating mechanism 18, that is, between the connection between the shielding plate 12 and the housing 11. Figure 3 As shown, a connecting plate 19 is also provided on the shielding plate 12 and connected to the rotating mechanism 18 to achieve a connection between them. The range hood 100 also includes a fan system 14 and an air intake channel 15 connecting the air inlet 13, the fan system 14, and the detection device 17. In other words, the air intake channel 15 is disposed within the housing 11.

[0085] At the same time, the range hood 100 further includes an air supply mechanism 200 , which is disposed on a side of the shielding plate 12 close to the air inlet 13 .

[0086] Furthermore, the air supply mechanism 200 includes an air supply port 211, which is positioned toward the housing 11. The air supply area of ​​the air supply port 211 is located along the height of the range hood 100, between the gap 16 and the lower edge of the air inlet 13, which is away from the connection between the shielding plate 12 and the housing 11. This design allows the air supply mechanism 200 to form an air curtain at the gap 16. Specifically, the air supply mechanism 200 is also positioned on the connecting plate 19, preventing oil smoke from leaking and spreading to other areas, causing environmental pollution, and improving the oil smoke absorption efficiency of the range hood 100.

[0087] The detection device 17 is disposed on the baffle 12 near the air inlet 13 and is used to detect the smoke flow conditions at the air inlet 13. In this embodiment, the detection device is an image sensor that is used to collect and pre-store the oil smoke conditions at the air inlet 13, so that the control system of the range hood 100 can timely drive the air supply mechanism 200 to supply air and open and close the baffle 12 based on the image sensor's records. By adding the detection device 17, the range hood 100 can control the air supply mechanism 200 and the movement of the baffle 12 based on the smoke flow conditions detected by the detection device 17, ensuring that the oil smoke enters the fan system 14 in a timely manner.

[0088] like Figure 6 The figure shows the coverage range P of the air intake channel, the inhalation direction Q of the air intake channel, and the air supply range M of the air supply mechanism. This further defines the air supply area. This structural form not only prevents oil smoke from escaping from the gap 16, but also allows the airflow in the air supply area to more effectively guide oil smoke into the interior of the range hood 100, thereby improving the comprehensiveness of the range hood 100's absorption and thus enhancing the absorption effect of the range hood 100.

[0089] The air supply mechanism 200 includes multiple groups of air supply units 21. The air supply areas of each group of air supply units 21 are at least partially non-overlapping. Each air supply unit 21 is driven to deliver air based on the amount of oil smoke entering the range hood 100. Because the air supply areas of each group of air supply units 21 are at least partially non-overlapping, the coverage of the air supply mechanism 200 is increased, ensuring that oil smoke in each area is blown into the air inlet 13, ensuring comprehensive absorption of oil smoke by the range hood 100.

[0090] Furthermore, each group of air supply units 21 includes an air supply port 211 and a fan 212. The fan 212 is arranged corresponding to the air supply port 211 to provide an air source for the air supply unit 21, and the fan 212 is at least partially oriented toward the air supply port 211. With this structural form, the airflow generated by the fan 212 can be directly guided into the air inlet 13, thereby enhancing the air supply effect and the accuracy of the airflow direction. At the same time, by at least partially oriented the fan 212 toward the air supply port 211, it can be ensured that the airflow generated by the fan 212 has a direct path to enter the air inlet 13 without multiple reflections or turns, thereby reducing energy loss and wind speed attenuation. In addition, it can also reduce airflow overflow and prevent the airflow generated by the fan 212 from flowing out in other directions, thereby improving the accuracy of air supply.

[0091] like Figure 7-Figure 8As shown, multiple groups of air supply parts 21 are arranged in sequence along the extension direction O of the gap, further limiting the position of the air supply part 21, and adopting this structural form, the coverage range of the air supply mechanism 200 is increased, and the oil smoke in the gap 16 is directed in a targeted manner, so that the oil smoke in each area is blown into the air inlet channel 15, ensuring the comprehensive absorption of the range hood 100.

[0092] There are multiple air supply members 212, and the multiple air supply members 212 are arranged in sequence along the extension direction O of the gap, further limiting the position of the air supply members 212. By adopting this structural form, the coverage range of the air supply mechanism 200 is increased, and the oil smoke in the gap 16 is directed in a targeted manner, so that the oil smoke in each area is blown into the air intake channel 15, ensuring the comprehensive absorption of the range hood 100.

[0093] The air supply mechanism 200 also includes a hood 22, which is mounted on each air supply section 21. A partition plate 23 is provided within the hood 22 to separate adjacent air supply sections 21. The addition of the hood 22 not only facilitates mounting the entire air supply mechanism 200 on the shielding plate 12, but also allows the airflow to be concentrated and directed to the corresponding air supply area, preventing airflow from interfering with or escaping, thereby improving the accuracy and effectiveness of air supply. Furthermore, the partition plate 23 effectively isolates the airflow from adjacent air supply sections 21, preventing interference, thereby enhancing the independence of each air supply section 21 and improving air supply effectiveness.

[0094] The air supply unit 21 also includes a guide member 24 and a drive member 25 connected to the guide member 24. The guide member 24 is positioned at the air supply port 211, and the drive member 25 is positioned near the air supply port 211. The drive member 25 drives the guide member 24 to move and at least partially open the air supply port 211. This structural configuration, by adding the guide member 24 and the drive member 25 that drives the guide member 24, guides the airflow generated by the air supply member 212 to the air inlet 13. The movement of the guide member 24 changes according to the direction of oil fume flow, ensuring comprehensive oil fume absorption by the range hood 100.

[0095] The air outlet angle in the corresponding relationship ensures that when the smoke deflector is open, the air outlet range of the air supply mechanism is above the upper end of the smoke inlet, thereby preventing the air curtain from affecting the range hood's fume absorption. This corresponding relationship can be obtained from measured data, and different models of range hoods may have different corresponding relationships.

[0096] This embodiment adds an air supply mechanism at the gap, and sets the air supply mechanism on the side of the baffle plate close to the air inlet, so that the air supply mechanism forms an air curtain at the gap. On the one hand, it prevents oil smoke from leaking out of the gap and spreading to other areas, causing environmental pollution and other problems. On the other hand, it blows the oil smoke into the air inlet through the air curtain, thereby improving the effect of the range hood in absorbing oil smoke. By adding an air supply mechanism at the gap, and setting the air supply mechanism on the side of the baffle plate away from the air inlet, and setting the air supply port toward the gap, the air curtain "blocks" the gap, thereby preventing oil smoke from leaking out of the gap and spreading to other areas, causing environmental pollution and other problems. The comprehensiveness of the range hood in absorbing oil smoke is ensured, the cleanliness of the kitchen environment is enhanced, and the comfort of users using the range hood is improved.

[0097] When implementing it, refer to Figure 9 , step S12 includes:

[0098] S121. Determine a current angle position of the smoke baffle at which the smoke baffle is opened according to the first image and the smoke inlet reference image.

[0099] S122: Determine the target air outlet angle according to the current angle position and the corresponding relationship.

[0100] S123: Setting the air outlet angle according to the target air outlet angle so that the air outlet angle reaches the target air outlet angle.

[0101] Among them, by setting the air outlet angle as the target air outlet angle, it is ensured that when the smoke shield is opened at the current angle position, the air outlet range of the air supply mechanism can be above the upper end position of the smoke inlet, thereby avoiding the impact of the wind curtain on the range hood's oil smoke suction.

[0102] In specific implementation, the "setting of air outlet angle" in steps S12 and S123 includes:

[0103] Set the inclination angle of the air guide of the air supply mechanism.

[0104] The extension line (or extended surface) of the air guide marks the air outlet range of the air supply mechanism. The intersection (or intersection line) of the extension line (or extended surface) and the plane of the smoke inlet should be above the upper end of the smoke inlet. The air outlet angle of the air supply mechanism can be adjusted by adjusting the inclination angle of the air guide.

[0105] When implementing it, refer to Figure 10 After step S12, the control method further includes:

[0106] S13: Obtain the currently generated oil smoke grayscale value, the current range hood gear position, and the stove firing status.

[0107] S14, controlling the operating current of the multiple air supply parts of the air supply mechanism according to the oil smoke gray value, the current range hood gear position and the stove firing state.

[0108] The oil smoke gray value indicates the size of the oil smoke. The larger the oil smoke, the larger the oil smoke gray value.

[0109] The burner firing status indicates whether each burner is in the firing state or the firing state.

[0110] The output air volume of the air supply unit can be adjusted by adjusting the working current of the air supply unit, thereby ensuring the air curtain effect while taking into account energy saving.

[0111] This embodiment adds an air supply mechanism at the gap, and sets the air supply mechanism on the side of the baffle plate close to the air inlet, so that the air supply mechanism forms an air curtain at the gap. On the one hand, it prevents oil smoke from leaking out of the gap and spreading to other areas to cause environmental pollution and other problems. On the other hand, it blows the oil smoke into the air inlet through the air curtain, thereby improving the effect of the range hood in absorbing oil smoke. By adding an air supply mechanism at the gap, and setting the air supply mechanism on the side of the baffle plate away from the air inlet, and setting the air supply port toward the gap, the air curtain "blocks" the gap, thereby preventing oil smoke from leaking out of the gap and spreading to other areas to cause environmental pollution and other problems. The comprehensiveness of the range hood in absorbing oil smoke is ensured, the cleanliness of the kitchen environment is enhanced, and the comfort of users using the range hood is improved, while ensuring the effect of the air curtain and taking energy saving into account.

[0112] When implementing it, refer to Figure 11 , step S14 includes:

[0113] S141: When the oil smoke grayscale value is greater than a preset grayscale threshold and the current range hood gear is greater than a preset gear, the operating current of the air supply unit corresponding to the burning stove is set to a first current value, and the operating current of the air supply unit corresponding to the unburned stove is set to a second current value, wherein the first current value is greater than the second current value.

[0114] S142: When the oil smoke grayscale value is greater than the grayscale threshold and the current range hood gear is less than or equal to the preset gear, the operating current of all the air supply parts is set to the first current value.

[0115] S143: When the oil smoke grayscale value is less than or equal to the grayscale threshold and the current range hood gear is greater than a preset gear, the operating current of all air supply units is set to a preset third current value, wherein the third current value is less than the second current value.

[0116] S144. When the oil fume grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, the operating current of the air supply part corresponding to the burning stove is set to the second current value, and the operating current of the air supply part corresponding to the unburned stove is set to the third current value.

[0117] Among them, the output air volume of the air supply unit is adjusted according to the comparison results of the oil smoke grayscale value and the grayscale threshold, the comparison results of the current range hood gear and the preset gear, and the stove firing status indication of the firing and non-firing stoves, so as to ensure the air curtain effect while taking into account energy saving.

[0118] The grayscale threshold, the preset gear, the first current value, the second current value and the third current value are set according to actual needs.

[0119] In specific implementation, the stove firing status includes: the left stove firing, the right stove firing, and the left and right stoves firing at the same time.

[0120] In step S141, “setting the operating current of the air supply unit corresponding to the burner that is on to a first current value, and setting the operating current of the air supply unit corresponding to the burner that is not on to a second current value” includes:

[0121] When the left stove is in the firing state, the operating current of the air supply unit on the left is set to the first current value, and the operating current of the air supply unit on the right is set to the second current value.

[0122] When the stove is in the right stove on state, the working current of the right air supply unit is set to the first current value, and the working current of the left air supply unit is set to the second current value.

[0123] When the left and right stoves are in the firing state at the stove top, the working currents of the left and right air supply parts are both set to the first current value.

[0124] In step S144, “setting the operating current of the air supply unit corresponding to the burner that is on to the second current value, and setting the operating current of the air supply unit corresponding to the burner that is not on to the third current value” includes:

[0125] When the left stove is in the firing state, the operating current of the left air supply unit is set to the second current value, and the operating current of the right air supply unit is set to the third current value.

[0126] When the stove is in the right stove on state, the operating current of the right air supply unit is set to the second current value, and the operating current of the left air supply unit is set to the third current value.

[0127] When the left and right stoves are in the firing state at the stove top, the working currents of the left and right air supply parts are both set to the second current value.

[0128] Among them, when the stove includes left and right stoves, the left stove is on, which means the left stove is on and the right stove is not on; the right stove is on, which means the right stove is on and the left stove is not on; and the left and right stoves are on at the same time, which means both the left and right stoves are on.

[0129] This embodiment further indicates how to set the working current of the air supply unit in the case of commonly used left and right stove heads.

[0130] In specific implementation, the step S13 of "obtaining the currently generated oil smoke gray value" includes:

[0131] A second image including the stove head captured by the detection device is acquired.

[0132] The soot grayscale value is calculated based on the second image.

[0133] Example 2

[0134] This embodiment provides a range hood control system, referring to Figure 12 , the control system includes:

[0135] Acquisition module 1 is configured to acquire a first image including the smoke inlet captured by the detection device, acquire pre-stored reference images of the smoke inlet with the smoke deflector opened at multiple angles, and acquire a preset correspondence between the angles of the smoke deflector opened and the angles of the air outlet. The air outlet angle is the opening angle of the air outlet of the air supply mechanism.

[0136] The air outlet angle setting module 2 is used to set the air outlet angle according to the first image, the smoke inlet reference image and the corresponding relationship, so that the air outlet range of the air supply mechanism is above the upper end position of the smoke inlet.

[0137] The structure of the range hood is as described in Example 1.

[0138] The air outlet angle in the corresponding relationship ensures that when the smoke deflector is open, the air outlet range of the air supply mechanism is above the upper end of the smoke inlet, thereby preventing the air curtain from affecting the range hood's fume absorption. This corresponding relationship can be obtained from measured data, and different models of range hoods may have different corresponding relationships.

[0139] This embodiment adds an air supply mechanism at the gap, and sets the air supply mechanism on the side of the baffle plate close to the air inlet, so that the air supply mechanism forms an air curtain at the gap. On the one hand, it prevents oil smoke from leaking out of the gap and spreading to other areas, causing environmental pollution and other problems. On the other hand, it blows the oil smoke into the air inlet through the air curtain, thereby improving the effect of the range hood in absorbing oil smoke. By adding an air supply mechanism at the gap, and setting the air supply mechanism on the side of the baffle plate away from the air inlet, and setting the air supply port toward the gap, the air curtain "blocks" the gap, thereby preventing oil smoke from leaking out of the gap and spreading to other areas, causing environmental pollution and other problems. The comprehensiveness of the range hood in absorbing oil smoke is ensured, the cleanliness of the kitchen environment is enhanced, and the comfort of users using the range hood is improved.

[0140] During specific implementation, the air outlet angle setting module 2 is further configured to determine the current angle position of the smoke baffle when it is opened according to the first image and the smoke inlet reference image.

[0141] The air outlet angle setting module 2 is further configured to determine a target air outlet angle according to the current angle position and the corresponding relationship.

[0142] The air outlet angle setting module 2 is further configured to set the air outlet angle according to the target air outlet angle so that the air outlet angle reaches the target air outlet angle.

[0143] Among them, by setting the air outlet angle as the target air outlet angle, it is ensured that when the smoke shield is opened at the current angle position, the air outlet range of the air supply mechanism can be above the upper end position of the smoke inlet, thereby avoiding the impact of the wind curtain on the range hood's oil smoke suction.

[0144] During specific implementation, the air outlet angle setting module 2 is also used to set the inclination angle of the air guide of the air supply mechanism.

[0145] The extension line (or extended surface) of the air guide marks the air outlet range of the air supply mechanism. The intersection (or intersection line) of the extension line (or extended surface) and the plane of the smoke inlet should be above the upper end of the smoke inlet. The air outlet angle of the air supply mechanism can be adjusted by adjusting the inclination angle of the air guide.

[0146] During specific implementation, the control system further includes: a working current control module 3 .

[0147] The acquisition module 1 is also used to obtain the currently generated oil smoke gray value, the current range hood gear and the stove burning status.

[0148] The working current control module 3 is used to control the working current of the multiple air supply parts of the air supply mechanism according to the oil smoke gray value, the current range hood gear and the stove firing state.

[0149] The oil smoke gray value indicates the size of the oil smoke. The larger the oil smoke, the larger the oil smoke gray value.

[0150] The burner firing status indicates whether each burner is in the firing state or the firing state.

[0151] The output air volume of the air supply unit can be adjusted by adjusting the working current of the air supply unit, thereby ensuring the air curtain effect while taking into account energy saving.

[0152] This embodiment adds an air supply mechanism at the gap, and sets the air supply mechanism on the side of the baffle plate close to the air inlet, so that the air supply mechanism forms an air curtain at the gap. On the one hand, it prevents oil smoke from leaking out of the gap and spreading to other areas to cause environmental pollution and other problems. On the other hand, it blows the oil smoke into the air inlet through the air curtain, thereby improving the effect of the range hood in absorbing oil smoke. By adding an air supply mechanism at the gap, and setting the air supply mechanism on the side of the baffle plate away from the air inlet, and setting the air supply port toward the gap, the air curtain "blocks" the gap, thereby preventing oil smoke from leaking out of the gap and spreading to other areas to cause environmental pollution and other problems. The comprehensiveness of the range hood in absorbing oil smoke is ensured, the cleanliness of the kitchen environment is enhanced, and the comfort of users using the range hood is improved, while ensuring the effect of the air curtain and taking energy saving into account.

[0153] In a specific implementation, the operating current control module 3 is further configured to set the operating current of the air supply unit corresponding to the active cooktop to a first current value, and the operating current of the air supply unit corresponding to the inactive cooktop to a second current value, when the oil smoke grayscale value is greater than a preset grayscale threshold and the current range hood gear is greater than a preset gear. The first current value is greater than the second current value.

[0154] The working current control module 3 is further configured to set the working current of all air supply parts to a first current value when the oil smoke gray value is greater than a gray threshold and the current range hood gear is less than or equal to a preset gear.

[0155] The working current control module 3 is further configured to set the working current of all air supply parts to a preset third current value when the oil smoke gray value is less than or equal to the gray threshold and the current range hood gear is greater than a preset gear.

[0156] The working current control module 3 is also used to set the working current of the air supply part corresponding to the burning stove to the second current value and the working current of the air supply part corresponding to the unburned stove to the third current value when the oil smoke gray value is less than or equal to the gray threshold and the current range hood gear is less than or equal to the preset gear.

[0157] Among them, the output air volume of the air supply unit is adjusted according to the comparison results of the oil smoke grayscale value and the grayscale threshold, the comparison results of the current range hood gear and the preset gear, and the stove firing status indication of the firing and non-firing stoves, so as to ensure the air curtain effect while taking into account energy saving.

[0158] The grayscale threshold, the preset gear, the first current value, the second current value and the third current value are set according to actual needs.

[0159] In specific implementation, the stove firing status includes: the left stove firing, the right stove firing, and the left and right stoves firing at the same time.

[0160] The working current control module 3 is also used to set the working current of the air supply part on the left to the first current value and the working current of the air supply part on the right to the second current value when the oil smoke grayscale value is greater than the preset grayscale threshold and the current range hood gear is greater than the preset gear, and when the stove is in the firing state of the left stove.

[0161] The working current control module 3 is also used to set the working current of the air supply part on the right to the first current value and the working current of the air supply part on the left to the second current value when the oil fume grayscale value is greater than the preset grayscale threshold and the current range hood gear is greater than the preset gear, and when the stove is in the firing state of the right stove.

[0162] The working current control module 3 is also used to set the working current of the air supply parts on the left and right sides to the first current value when the oil smoke grayscale value is greater than the preset grayscale threshold and the current range hood gear is greater than the preset gear, and when the stove is in the firing state with the left and right stoves firing at the same time.

[0163] The working current control module 3 is also used to set the working current of the air supply part on the left to the second current value and the working current of the air supply part on the right to the third current value when the oil smoke grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, and when the stove is in the firing state of the left stove.

[0164] The working current control module 3 is also used to set the working current of the air supply part on the right to the second current value and the working current of the air supply part on the left to the third current value when the oil fume grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, and when the stove is in the firing state of the right stove.

[0165] The working current control module 3 is also used to set the working current of the left and right air supply parts to the second current value when the oil fume grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, and when the stove is in the firing state with the left and right stoves firing at the same time.

[0166] Among them, when the stove includes left and right stoves, the left stove is on, which means the left stove is on and the right stove is not on; the right stove is on, which means the right stove is on and the left stove is not on; and the left and right stoves are on at the same time, which means both the left and right stoves are on.

[0167] This embodiment further indicates how to set the working current of the air supply unit in the case of commonly used left and right stove heads.

[0168] During specific implementation, the acquisition module 1 is further used to acquire a second image containing the stove head captured by the detection device.

[0169] The acquisition module 1 is further configured to calculate the oil smoke gray value according to the second image.

[0170] Example 3

[0171] Figure 13 This is a schematic diagram of the structure of an electronic device provided in Example 3 of the present invention. The electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the range hood control method in Example 1 is implemented. Figure 13 The electronic device 30 shown is only an example and should not limit the functionality and scope of use of the embodiments of the present invention.

[0172] The electronic device 30 may be a general-purpose computing device, such as a server device. Components of the electronic device 30 may include, but are not limited to, the at least one processor 31, the at least one memory 32, and a bus 33 connecting various system components (including the memory 32 and the processor 31).

[0173] The bus 33 includes a data bus, an address bus, and a control bus.

[0174] The memory 32 may include a volatile memory, such as a random access memory (RAM) 321 and / or a cache memory 322 , and may further include a read-only memory (ROM) 323 .

[0175] The memory 32 may also include a program / utility 325 having a set (at least one) of program modules 324, such program modules 324 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0176] The processor 31 executes various functional applications and data processing by running computer programs stored in the memory 32 , such as the range hood control method in Embodiment 1 of the present invention.

[0177] The electronic device 30 can also communicate with one or more external devices 34 (e.g., buttons, pointing devices, etc.). This communication can occur via an input / output (I / O) interface 35. Furthermore, the model-generated electronic device 30 can also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 36. As shown, the network adapter 36 communicates with other modules of the model-generated electronic device 30 via a bus 33. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with the model-generated electronic device 30, including but not limited to microcode, device drivers, redundant processors, external disk drive arrays, RAID (RAID) systems, tape drives, and data backup storage systems.

[0178] It should be noted that although several units / modules or sub-units / modules of the electronic device are mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above may be embodied in one unit / module; conversely, the features and functions of one unit / module described above may be further divided and embodied by multiple units / modules.

[0179] Example 4

[0180] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the range hood control method of embodiment 1 is implemented.

[0181] The readable storage medium may include, but is not limited to, a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0182] In a possible implementation manner, the present invention can also be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the range hood control method in Example 1.

[0183] The program code for executing the present invention may be written in any combination of one or more programming languages, and may be executed entirely on the user device, partially on the user device, as an independent software package, partially on the user device and partially on a remote device, or entirely on the remote device.

[0184] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A range hood control method, characterized in that: The control method includes: Acquire a first image including the smoke inlet captured by a detection device, acquire a pre-stored reference image of the smoke inlet when the smoke shield is opened at multiple angles, and acquire a preset correspondence between the angles of the opened smoke shield and the angles of the air outlet; wherein a gap is formed between the housing of the range hood and the smoke shield, the air outlet angle is the opening angle of the air outlet of an air supply mechanism, and the air supply mechanism is disposed on a side of the smoke shield close to the air inlet of the range hood, such that the air supply mechanism forms an air curtain at the gap; The air outlet angle is set according to the first image, the smoke inlet reference image and the corresponding relationship so that the air outlet range of the air supply mechanism is above the upper end position of the smoke inlet.

2. The range hood control method according to claim 1, wherein: The setting of the air outlet angle according to the first image, the smoke inlet reference image, and the corresponding relationship includes: determining a current angular position of the smoke baffle at which the smoke baffle is opened according to the first image and the smoke inlet reference image; Determining a target air outlet angle according to the current angle position and the corresponding relationship; The air outlet angle is set according to the target air outlet angle so that the air outlet angle reaches the target air outlet angle.

3. The range hood control method according to claim 1, wherein: The setting of the air outlet angle includes: Set the inclination angle of the air guide of the air supply mechanism.

4. The range hood control method according to claim 1, wherein: After the step of setting the air outlet angle according to the first image, the smoke inlet reference image, and the corresponding relationship, the control method further includes: Get the current smoke grayscale value, current range hood gear, and stove firing status; The operating current of the multiple air supply parts of the air supply mechanism is controlled according to the oil fume ash value, the current range hood gear and the firing state of the stove.

5. The range hood control method according to claim 4, wherein: The controlling of the operating current of the multiple air supply parts of the air supply mechanism according to the oil fume gray value, the current range hood gear position and the stove firing state includes: When the oil smoke grayscale value is greater than a preset grayscale threshold and the current range hood gear is greater than a preset gear, the operating current of the air supply unit corresponding to the burning stove is set to a first current value, and the operating current of the air supply unit corresponding to the unburned stove is set to a second current value; wherein the first current value is greater than the second current value; When the oil smoke grayscale value is greater than the grayscale threshold and the current range hood gear is less than or equal to the preset gear, the operating current of all air supply parts is set to the first current value; When the oil smoke grayscale value is less than or equal to the grayscale threshold and the current range hood gear is greater than the preset gear, the operating current of all air supply parts is set to a preset third current value; wherein the third current value is less than the second current value; When the oil fume grayscale value is less than or equal to the grayscale threshold and the current range hood gear is less than or equal to the preset gear, the working current of the air supply part corresponding to the burning stove is set to the second current value, and the working current of the air supply part corresponding to the unburned stove is set to the third current value.

6. The range hood control method according to claim 5, wherein: The stove firing state includes: left stove firing, right stove firing, and left and right stoves firing simultaneously; The operating current of the air supply unit corresponding to the stove that is on is set to a first current value, and the operating current of the air supply unit corresponding to the stove that is not on is set to a second current value, including: When the left stove is on, the operating current of the left air supply unit is set to the first current value, and the operating current of the right air supply unit is set to the second current value; When the stove is in the right stove on state, the operating current of the right air supply unit is set to the first current value, and the operating current of the left air supply unit is set to the second current value; When the stove is in the firing state of both the left and right stoves firing simultaneously, the operating currents of the air supply parts on the left and right sides are both set to the first current value; The operating current of the air supply unit corresponding to the burning stove is set to the second current value, and the operating current of the air supply unit corresponding to the unburned stove is set to the third current value, including: When the left stove is on, the operating current of the left air supply unit is set to the second current value, and the operating current of the right air supply unit is set to the third current value. When the stove is in the right stove on state, the operating current of the right air supply unit is set to the second current value, and the operating current of the left air supply unit is set to the third current value; When the stove is in the firing state of the left and right stoves firing at the same time, the working currents of the left and right air supply parts are both set to the second current value.

7. The range hood control method according to claim 4, wherein: The step of obtaining the currently generated oil smoke grayscale value includes: Acquire a second image including the stove head captured by the detection device; The soot grayscale value is obtained by calculation according to the second image.

8. A range hood control system, characterized in that: The control system includes: an acquisition module, configured to acquire a first image including the smoke inlet captured by the detection device, acquire a pre-stored reference image of the smoke inlet when the smoke shield is opened at multiple angles, and acquire a preset correspondence between the angle position of the smoke shield opening and the angle of the air outlet; wherein a gap is formed between the housing of the range hood and the smoke shield, the air outlet angle is the opening angle of the air outlet of an air supply mechanism, and the air supply mechanism is disposed on a side of the smoke shield close to the air inlet of the range hood, such that the air supply mechanism forms an air curtain at the gap; An air outlet angle setting module is used to set the air outlet angle according to the first image, the smoke inlet reference image and the corresponding relationship so that the air outlet range of the air supply mechanism is above the upper end position of the smoke inlet.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the range hood control method according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the range hood control method according to any one of claims 1 to 7 is implemented.

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