Range hood control method and device, range hood and storage medium

Abstract

The invention discloses an extractor hood control method and device, an extractor hood and a storage medium. The range hood control method comprises the following steps: generating a sound pressure volume curve of sound equipment based on the playing audio volume of the sound equipment and a noise data sound pressure level correspondingly generated in a range hood working noise test experiment, and obtaining a pre-calibrated upper threshold range hood noise sound pressure level; the current noise sound pressure level of the extractor hood running at the current gear is obtained, and the corresponding curve slope is determined according to the current noise sound pressure level and the sound pressure volume curve; and according to the current noise sound pressure level, the curve slope and the upper threshold range hood noise sound pressure level, the current sound volume opening degree of sound equipment of the range hood running at the current gear is determined. According to the invention, the environmental noise is shielded in an audio injection mode, the comfort of the user is improved, and the influence of the noise on the psychology of the user is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and particularly to a control method and device for a range hood, a range hood, and a storage medium. Background Art

[0002] A range hood is a kitchen appliance for purifying the kitchen environment. It is installed above the kitchen stove and can quickly extract the waste generated by the stove combustion and the harmful oil fumes produced during the cooking process outdoors. At the same time, it condenses and collects the oil fumes, reduces pollution, purifies the air, and has the safety guarantee functions of preventing poisoning and explosion.

[0003] Traditional range hoods often produce relatively large noise during operation, which not only affects the user's cooking experience but also may have potential impacts on health. Existing noise reduction technologies for range hoods mostly focus on improving the design of the fan air duct and increasing sound absorption and insulation materials. These methods can reduce noise to a certain extent, but often result in an increase in the volume of the device or an increase in the manufacturing cost. Summary of the Invention

[0004] The present invention provides a control method and device for a range hood, a range hood, and a storage medium to solve the problem that the current noise reduction of range hoods relies on equipment improvement or high manufacturing costs.

[0005] According to an aspect of the present invention, there is provided a control method for a range hood, the range hood including an audio device, and the control method for the range hood includes:

[0006] Based on the playback audio volume of the audio device and the corresponding sound pressure level of the noise data generated under the range hood working noise test experiment, generate a sound pressure volume curve of the audio device, and obtain a pre-calibrated upper threshold sound pressure level of the range hood noise;

[0007] Obtain the current sound pressure level of the range hood operating at the current gear, and determine the corresponding curve slope according to the current sound pressure level and the sound pressure volume curve;

[0008] Determine the current audio volume opening of the audio device of the range hood operating at the current gear according to the current sound pressure level, the curve slope, and the upper threshold sound pressure level of the range hood noise.

[0009] Optionally, generating a sound pressure volume curve of the audio device based on the playback audio volume of the audio device and the corresponding sound pressure level of the noise data generated under the range hood working noise test experiment includes:

[0010] Under the range hood working noise test experiment, collect the playback audio volume of the audio device and the corresponding sound pressure level of the noise data at a set audio volume step length, and generate a sound pressure volume curve of the audio device according to the playback audio volume and the sound pressure level corresponding to each set audio volume step length.

[0011] Optionally, obtaining the current noise sound pressure level of the range hood when operating at the current gear includes:

[0012] Obtaining the current noise sound pressure level stored in the range hood corresponding to the range hood when operating at the current gear.

[0013] Optionally, obtaining the current noise sound pressure level of the range hood when operating at the current gear includes:

[0014] Collecting the noise data of the range hood operating in real time when operating at the current gear, and determining the current noise sound pressure level according to the noise data.

[0015] Optionally, before determining the current audio volume opening of the audio device of the range hood when operating at the current gear according to the current noise sound pressure level, the curve slope, and the upper threshold range hood noise sound pressure level, it further includes:

[0016] Obtaining the initial audio volume opening of the audio device;

[0017] Determining the current audio volume opening of the audio device of the range hood when operating at the current gear according to the current noise sound pressure level, the curve slope, and the upper threshold range hood noise sound pressure level, includes:

[0018] Determining the current audio volume opening of the audio device of the range hood when operating at the current gear based on the following formula, specifically:

[0019]

[0020] wherein, V (x) is the current audio volume opening; V0 is the initial audio volume opening; SPL(n) is the current noise sound pressure level; SPL max is the upper threshold range hood noise sound pressure level; k is the curve slope.

[0021] Optionally, the range hood control method further includes:

[0022] Obtaining the kitchen data of the location where the range hood is located, and storing the kitchen data and the current noise sound pressure level of the range hood when operating at the current gear correspondingly in the range hood, so that when the range hood is used next time, the current noise sound pressure level can be directly called to determine the corresponding current audio volume opening for operation and playback.

[0023] Optionally, obtaining the current noise sound pressure level of the range hood when operating at the current gear includes:

[0024] Obtaining the kitchen data of the location where the range hood is located, and calling the current noise sound pressure level of the corresponding range hood stored in the range hood according to the kitchen data.

[0025] According to another aspect of the present invention, there is provided an oil fume extractor control device. The oil fume extractor includes an audio device. The oil fume extractor control device includes:

[0026] A data acquisition module, configured to generate a sound pressure volume curve of the audio device based on the playback audio volume of the audio device and the corresponding sound pressure level of the noise data generated under the oil fume extractor working noise test experiment, and acquire the pre-calibrated upper threshold oil fume extractor noise sound pressure level;

[0027] A curve slope determination module, configured to acquire the current noise sound pressure level of the oil fume extractor operating at the current gear, and determine the corresponding curve slope according to the current noise sound pressure level and the sound pressure volume curve;

[0028] A volume opening determination module, configured to determine the current audio volume opening of the audio device of the oil fume extractor operating at the current gear according to the current noise sound pressure level, the curve slope, and the upper threshold oil fume extractor noise sound pressure level.

[0029] According to another aspect of the present invention, there is provided an oil fume extractor, which includes an audio device;

[0030] The oil fume extractor further includes:

[0031] At least one processor; and,

[0032] A memory communicatively connected to the at least one processor; wherein,

[0033] The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor so that the at least one processor can execute the oil fume extractor control method of any embodiment of the present invention.

[0034] According to another aspect of the present invention, there is provided a computer-readable storage medium storing computer instructions for causing a processor to implement the oil fume extractor control method of any embodiment of the present invention when executed.

[0035] Based on the playback audio volume of the audio device and the corresponding sound pressure level of the generated noise data under the working noise test experiment of the range hood, the sound pressure volume curve of the audio device is generated. Then, based on the pre-acquired sound pressure volume curve, the range hood is regulated, which can enhance the generality and adaptability of audio injection, and reduce the annoyance degree of the range hood noise. Further, according to the current noise sound pressure level of the range hood operating at the current gear, the curve slope corresponding to the current noise sound pressure level, and the pre-calibrated upper threshold sound pressure level of the range hood noise, the current sound volume opening of the audio device when the range hood operates at the current gear is determined, solving the problem that the current noise reduction of the range hood relies on equipment improvement or high manufacturing cost, realizing the shielding of environmental noise through the way of audio injection, improving the user's comfort, and reducing the impact of noise on the user's psychology.

[0036] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 is a schematic structural diagram of a range hood applicable to an embodiment of the present invention;

[0039] Figure 2 is a schematic structural diagram of another range hood applicable to an embodiment of the present invention;

[0040] Figure 3 is a flowchart of a range hood control method provided by an embodiment of the present invention;

[0041] Figure 4 is a schematic diagram of an experimental scenario of a working noise test experiment of a range hood provided by an embodiment of the present invention;

[0042] Figure 5 is a schematic diagram of the sound pressure volume curve of an audio device provided by an embodiment of the present invention;

[0043] Figure 6 is a flowchart of a range hood control method provided by an embodiment of the present invention;

[0044] Figure 7It is a flowchart of an oil fume extractor control method provided according to an embodiment of the present invention;

[0045] Figure 8 It is a flowchart of an oil fume extractor control method provided according to an embodiment of the present invention;

[0046] Figure 9 It is a schematic structural diagram of an oil fume extractor control device provided according to an embodiment of the present invention;

[0047] Figure 10 It is a schematic structural diagram of an oil fume extractor that implements the oil fume extractor control method of the embodiment of the present invention;

[0048] In the figure:

[0049] 10, main chassis; 20, smoke collecting cavity; 30, audio device; 31, microphone; 32, left speaker; 33, right speaker; 40, high-precision microphone;

[0050] 510, data acquisition module; 520, curve slope determination module; 530, volume opening determination module;

[0051] 610, oil fume extractor control system; 611, processor; 612, read-only memory (ROM); 613, random access memory (RAM); 614, bus; 615, input / output (I / O) interface; 616, input unit; 617, output unit; 618, storage unit; 619, communication unit. Detailed implementation manners

[0052] In order to enable those skilled in the art of the present technology to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0053] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data used can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0054] The range hood in this embodiment includes a sound device, such as Figure 1 The shown sound device is arranged on the smoke collecting cavity 20 of the main chassis 10. The sound device may include a microphone 31, a left speaker 32, a right speaker 33, etc., such as Figure 2 The shown sound device 30 is arranged on the main chassis 10. The sound device 30 may be an intelligent speaker device integrated with a microphone. This embodiment does not make any restrictions on this.

[0055] Due to hardware differences, the change in the sound pressure level of the output sound corresponding to the change in the volume of the sound device included in the range hood is often different. Especially in a reverberation field environment, there is still a transmission loss from the sound device to the user's ear. In some application cases, those skilled in the art will perform sound pressure matching for each gear of the range hood. Usually, the transfer function from the sound device to the human ear is constructed by using the sound field restoration method and the sound simulation method, so as to directly calibrate the volume of the audio. However, this method is undoubtedly time-consuming and laborious, and the efficiency is low. Based on the above problems, the embodiments of the present invention provide a range hood control method, device, range hood and storage medium to solve the above problems.

[0056] Figure 3 The flowchart of a range hood control method provided by an embodiment of the present invention is shown. This embodiment is applicable to the situation where the range hood shields environmental noise by means of audio injection. The range hood control method can be executed by a range hood control device. The range hood control device can be implemented in the form of hardware and / or software, and the range hood control device can be configured in various models of range hoods. The range hood includes a sound device, such as Figure 3 As shown, the range hood control method includes:

[0057] S110. Based on the playing audio volume of the sound device and the sound pressure level of the corresponding generated noise data under the range hood working noise test experiment, generate the sound pressure volume curve of the sound device, and obtain the pre-calibrated upper threshold range hood noise sound pressure level.

[0058] Build the working noise test of the range hood as shown in accordance with the national standard Figure 4 the working noise test experimental scenario of the range hood. The range hood 10 is installed in the simulated kitchen, and a high-precision microphone 40 is separately set at the position of the human ear. The high-precision microphone 40 is set to be 150 cm high and 150 cm away from the wall where the range hood 10 is installed according to the national standard requirements. Based on this, considering that the white noise audio has signals in the full frequency band and is suitable for making frequency response curves, the white noise audio is played through the audio device 30 at 100% volume opening, and the high-precision microphone 40 records the noise data at this time. Repeat the playback of the white noise audio by the audio device 30 and the recording of the noise data by the high-precision microphone 40 with the set audio volume step size. Convert all the recorded data into the playback audio volume of the audio device 30 and the sound pressure level of the corresponding noise data generated by the high-precision microphone 40, and then an acoustic pressure volume curve of the audio device can be integrated and generated.

[0059] Among them, the set audio volume step size is related to the effective minimum volume threshold of the audio device, and can be specifically selected and set according to the effective minimum volume threshold and the desired measurement accuracy. This embodiment does not impose any restrictions on the set audio volume step size. The value of the effective minimum volume threshold depends on the background noise of the working noise test experimental scenario of the range hood. Exemplarily, at a certain volume opening, the difference between the sound pressure level of the sound emitted by the audio device at the high-precision microphone and the background noise is equal to 6 decibels, then the set audio volume step size is 6 decibels.

[0060] In this embodiment, when testing the working noise of the range hood, collect the playback audio volume of the audio device and the sound pressure level of the corresponding noise data at the set audio volume step size. It can complete data statistics at each volume opening by decreasing from the initial audio volume opening of the audio device to the effective minimum volume threshold at the set audio volume step size, or it can also complete data statistics at each volume opening by increasing from the effective minimum volume threshold to the initial audio volume opening at the set audio volume step size. This embodiment does not impose any restrictions on this.

[0061] Further, the pre-calibrated upper threshold of the range hood noise sound pressure level should be understood as that the noise sound pressure level of the range hood at its highest speed gear should not exceed a certain specific decibel value. The upper threshold of the range hood noise sound pressure level can be selected as 70 dB according to the national standard requirements (corresponding to its superimposed sound pressure level not exceeding 73).

[0062] S120. Obtain the current noise sound pressure level of the range hood operating at the current gear, and determine the corresponding curve slope according to the current noise sound pressure level and the acoustic pressure volume curve.

[0063] It is considered that the noise data under all gear operations can be pre-stored in the range hood, and it can be adapted to different types of range hoods. Then, when the range hood is operating in the current gear, the corresponding noise data can be directly obtained, and then the corresponding current noise sound pressure level can be calculated according to the noise data corresponding to the current gear operation at this time, so as to further realize the adaptive volume matching of the range hood.

[0064] In one embodiment, when pre-storing the noise data of the range hood, the kitchen data at the location of the range hood can be synchronously saved at the same time, that is, the kitchen data at the location of the range hood is matched with the noise data of the range hood under all gear operations. Then, when the range hood is operating in the current gear and combining the kitchen data at the location of the range hood, the current noise sound pressure level of the range hood corresponding to the current gear operation stored in the range hood can be directly called, and then the current sound volume opening of the audio device can be determined based on the current noise sound pressure level, so as to realize the adaptive volume matching of the range hood.

[0065] In another embodiment, in order to more accurately control the volume of the range hood, the noise data running in real time under the current gear operation can be obtained in real time, and the current noise sound pressure level can be determined according to the noise data, so as to further realize the accurate volume matching of the range hood.

[0066] Exemplarily, if it is the first time the range hood is used, then under the influence of no background noise, the range hood runs stably for a set time length at each gear operation, and the corresponding actual noise sound pressure level is calculated. Further, the current noise sound pressure level corresponding to the current gear operation of the range hood can be obtained. Among them, the set time length can be selected and set by those skilled in the art according to time requirements. This embodiment does not impose any restrictions on the set time length. Optionally, the set time length is 5s.

[0067] Further, after obtaining the current noise sound pressure level of the range hood, reference can be made to Figure 5 the sound pressure volume curve of the audio device shown to determine the curve slope corresponding to the current noise sound pressure level.

[0068] S130. Determine the current sound volume opening of the audio device when the range hood is operating in the current gear according to the current noise sound pressure level, the curve slope, and the upper threshold range hood noise sound pressure level.

[0069] The sound volume opening is the intensity of the sound emitted by the audio device. In this embodiment, after calculating the current sound volume opening, the audio device needs to be adjusted from the initial sound volume opening to the current sound volume opening. First, the initial sound volume opening of the audio device is obtained. The initial sound volume opening can be the maximum sound size that the audio device can generate when driving the speaker, which is related to the factory attributes of the audio device. This embodiment does not impose any restrictions on it.

[0070] Based on the above, the current sound volume opening of the audio device when the range hood is operating at the current gear is determined according to the following formula, specifically:

[0071]

[0072] Wherein, V (x) is the current sound volume opening; V0 is the initial sound volume opening; SPL(n) is the current noise sound pressure level; SPL max is the upper threshold range hood noise sound pressure level; k is the curve slope.

[0073] Exemplarily, taking the initial sound volume opening of 100 dB(A) as an example, the upper threshold range hood noise sound pressure level is 70 dB. If the current noise sound pressure level SPL(n) is the sound pressure level in the strong gear, correspondingly, the curve slope k corresponding to the current noise sound pressure level is obtained by checking the sound pressure volume curve as 0.5 dB / unit volume. Then, when the audio injection function is set to operate in the strong gear of the range hood, the audio device is adjusted from the initial sound volume opening of 100 to the current sound volume opening of 88.

[0074] The technical solution of the embodiment of the present invention is based on the playback audio volume of the audio device and the sound pressure level of the corresponding generated noise data under the working noise test experiment of the range hood, generates the sound pressure volume curve of the audio device, and obtains the pre-calibrated upper threshold range hood noise sound pressure level; obtains the current noise sound pressure level when the range hood is operating at the current gear, and determines the corresponding curve slope according to the current noise sound pressure level and the sound pressure volume curve; determines the current sound volume opening of the audio device when the range hood is operating at the current gear according to the current noise sound pressure level, the curve slope and the upper threshold range hood noise sound pressure level. The embodiment of the present invention realizes the shielding of environmental noise by means of audio injection, improves the comfort of users, and reduces the impact of noise on the psychology of users.

[0075] Based on the same inventive concept, Figure 6 is a flowchart of a range hood control method provided by an embodiment of the present invention. On the basis of the above embodiment, considering determining the current sound volume opening of the audio device by the current noise sound pressure level stored in advance in the range hood when operating at the corresponding gear, an optional implementation manner is provided. The range hood includes an audio device, as Figure 6 shown, the range hood control method includes:

[0076] S210. Collect the playback audio volume of the audio device and the sound pressure level of the corresponding generated noise data at a set sound volume step length under the working noise test experiment of the range hood, and generate the sound pressure volume curve of the audio device according to the playback audio volume and the noise data sound pressure level corresponding to each set sound volume step length.

[0077] Due to hardware differences, the change in the output sound pressure level corresponding to the volume change of audio equipment is often different. Especially in a reverberant field environment, there is also a transmission loss from the audio equipment to the user's ear. In some application cases, those skilled in the art will perform sound pressure matching for each gear of a certain range hood, usually using the sound field restoration method and acoustic simulation method to construct the transfer function from the audio equipment to the human ear, so as to directly calibrate the volume of the audio in the software. However, this method is undoubtedly time-consuming and laborious, with low efficiency. In this embodiment, according to the working noise test of the national standard, a working noise test experimental scenario of the range hood as shown in Figure 4 is built, which is applicable to all range hoods. By analyzing the sound pressure - volume curve of the audio equipment in the reverberant field of the working noise test experimental scenario of the range hood, an audio injection method that only calibrates the audio once is realized.

[0078] S220. Obtain the pre - calibrated upper threshold sound pressure level of the range hood noise.

[0079] S230. Obtain the current noise sound pressure level stored in the range hood corresponding to the range hood running at the current gear.

[0080] S240. Determine the corresponding curve slope according to the current noise sound pressure level and the sound pressure - volume curve.

[0081] S250. Determine the current audio volume opening of the audio equipment of the range hood running at the current gear according to the current noise sound pressure level, the curve slope and the upper threshold sound pressure level of the range hood noise.

[0082] The technical solution of the embodiment of the present invention collects the playing audio volume of the audio equipment and the sound pressure level of the corresponding generated noise data at a set audio volume step under the working noise test of the range hood, and generates the sound pressure - volume curve of the audio equipment according to the playing audio volume and the sound pressure level of the noise data corresponding to each set audio volume step, realizing audio injection that only calibrates the audio once, saving manpower and time, improving the audio volume regulation efficiency of the audio equipment of the range hood, ensuring the audio use effect of the range hood, and enhancing the comfort of the users using the range hood.

[0083] Based on the same inventive concept, Figure 7 is a flowchart of a range hood control method provided by an embodiment of the present invention. On the basis of the above - mentioned embodiment, considering the difference between the reverberant field environment in the user's kitchen and the actual operating noise of the range hood, by collecting the real - time operating noise data of the range hood at the current operating gear to determine the current audio volume opening of the audio equipment, an alternative implementation manner is provided. The range hood includes an audio equipment, as shown in Figure 7 The range hood control method includes:

[0084] S310. Under the working noise test experiment of the range hood, collect the playing audio volume of the audio device and the sound pressure level of the corresponding generated noise data at a set audio volume step, and generate the sound pressure - volume curve of the audio device according to the playing audio volume and the sound pressure level of the noise data corresponding to each set audio volume step.

[0085] S320. Obtain the pre - calibrated upper - threshold range - hood noise sound pressure level.

[0086] S330. Collect the noise data of the range hood running in real - time at the current gear, and determine the current noise sound pressure level according to the noise data.

[0087] Specifically, in the actual use of the range hood, the range hood can be operated at the current gear in an environment without obvious background noise, and collect the noise data of the range hood running in real - time at the current gear. For example, the current gear can be a strong gear, a weak gear or other preset gears of the range hood, and this embodiment does not make any restrictions on this.

[0088] S340. Determine the corresponding curve slope according to the current noise sound pressure level and the sound pressure - volume curve.

[0089] S350. Determine the current audio volume opening of the audio device when the range hood is running at the current gear according to the current noise sound pressure level, the curve slope and the upper - threshold range - hood noise sound pressure level.

[0090] The technical solution of the embodiment of the present invention, after obtaining the sound pressure - volume curve of the audio device, collecting the noise data of the range hood running in real - time at the current gear, and determining the current noise sound pressure level according to the noise data, further determine the current audio volume opening of the audio device when the range hood is running at the current gear according to the current noise sound pressure level, the curve slope and the upper - threshold range - hood noise sound pressure level, so as to adaptively realize the matching of the current audio volume opening of the audio device after obtaining the current noise sound pressure level of the range hood in real - time, enhance the generality and adaptive ability of audio injection, and reduce the annoyance degree of range - hood noise.

[0091] Based on the same inventive concept, Figure 8 is a flowchart of a range - hood control method provided by an embodiment of the present invention. On the basis of the above - mentioned embodiment, considering the differences in kitchen data of users, this embodiment provides an optional implementation manner by recommending better real - time running noise data of the range hood at the current running gear through kitchen data to determine the current audio volume opening of the audio device. The range hood includes an audio device, as Figure 8 shown, the range - hood control method includes:

[0092] S410. Under the working noise test experiment of the range hood, collect the playback audio volume of the audio device and the sound pressure level of the corresponding generated noise data at a set sound volume step, and generate a sound pressure - volume curve of the audio device according to the playback audio volume and the sound pressure level of the noise data corresponding to each set sound volume step.

[0093] S420. Obtain the pre - calibrated upper - threshold range - hood noise sound pressure level.

[0094] In this embodiment, synchronously save the current noise sound pressure level of the range hood in each operation at the current gear and its corresponding kitchen data, that is, after completing the audio injection regulation of the range hood, obtain the kitchen data at the location of the range hood, and store the kitchen data and the current noise sound pressure level of the range hood in operation at the current gear in the range hood correspondingly, so that when the range hood is used next time, it can directly call the current noise sound pressure level and then determine the corresponding current sound volume opening for operation and playback.

[0095] S430. Obtain the kitchen data at the location of the range hood, and call the corresponding current noise sound pressure level of the range hood in operation at the current gear stored in the range hood according to the kitchen data.

[0096] On the above basis, the current noise sound pressure level of the range hood in operation at the current gear can be obtained in combination with the kitchen data, that is, after obtaining the kitchen data at the location of the range hood, call the corresponding current noise sound pressure level of the range hood in operation at the current gear stored in the range hood based on the kitchen data.

[0097] Among them, the kitchen data can be but is not limited to data such as the floor where the range hood is located, the length, width and height of the range hood, or whether there is a matching cabinet installed, etc. This embodiment does not impose any restrictions on the kitchen data.

[0098] It can be understood that the sound volume opening of the audio device of the range hood at different gears and the kitchen data at its location are stored in the range hood correspondingly, and after each operation of the range hood is completed, the data is saved to the range hood to continuously supplement and optimize the data in the range hood for subsequent matching of the current sound volume opening of the audio device.

[0099] S440. Determine the corresponding curve slope according to the current noise sound pressure level and the sound pressure - volume curve.

[0100] S450. Determine the current sound volume opening of the audio device of the range hood in operation at the current gear according to the current noise sound pressure level, the curve slope and the upper - threshold range - hood noise sound pressure level.

[0101] In the technical solution of the embodiment of the present invention, after obtaining the sound pressure volume curve of the audio device, kitchen data at the location where the range hood is located is obtained, and the current noise sound pressure level of the corresponding range hood operating at the current gear stored in the range hood is called according to the kitchen data. The current audio volume opening of the audio device when the range hood operates at the current gear is determined based on the current noise sound pressure level, the curve slope, and the upper threshold range hood noise sound pressure level. Through a pre-calibration of the control audio frequency and then using the volume sound pressure curve of the audio device to adjust the audio volume opening, it can be applied to all gears of all range hoods, enhancing the audio injection adaptability and reducing the annoyance level of users when using the range hood.

[0102] Based on the same inventive concept, Figure 9 FIG. is a schematic structural diagram of a range hood control device provided by an embodiment of the present invention. As Figure 9 shown, the range hood control device includes:

[0103] A data acquisition module 510, configured to generate a sound pressure volume curve of the audio device based on the playback audio volume of the audio device and the corresponding noise data sound pressure level under the range hood working noise test experiment, and obtain the pre-calibrated upper threshold range hood noise sound pressure level;

[0104] A curve slope determination module 520, configured to obtain the current noise sound pressure level of the range hood operating at the current gear, and determine the corresponding curve slope according to the current noise sound pressure level and the sound pressure volume curve;

[0105] A volume opening determination module 530, configured to determine the current audio volume opening of the audio device when the range hood operates at the current gear according to the current noise sound pressure level, the curve slope, and the upper threshold range hood noise sound pressure level.

[0106] Optionally, generating a sound pressure volume curve of the audio device based on the playback audio volume of the audio device and the corresponding noise data sound pressure level under the range hood working noise test experiment is specifically used for:

[0107] Collecting the playback audio volume of the audio device and the corresponding noise data sound pressure level at a set audio volume step length under the range hood working noise test experiment, and generating a sound pressure volume curve of the audio device according to the playback audio volume and the noise data sound pressure level corresponding to each set audio volume step length.

[0108] Optionally, obtaining the current noise sound pressure level of the range hood operating at the current gear is specifically used for:

[0109] Obtaining the current noise sound pressure level stored in the range hood corresponding to the range hood operating at the current gear.

[0110] Optionally, obtain the current noise sound pressure level of the range hood when operating at the current gear, specifically for:

[0111] Collect the noise data of the range hood running in real time at the current gear, and determine the current noise sound pressure level according to the noise data.

[0112] Optionally, the range hood control device further includes:

[0113] An initial sound volume opening acquisition module, configured to execute obtaining the initial sound volume opening of the audio device;

[0114] Determine the current sound volume opening of the audio device of the range hood when operating at the current gear according to the current noise sound pressure level, the curve slope, and the upper threshold range hood noise sound pressure level, specifically for:

[0115] Based on the following formula, determine the current sound volume opening of the audio device of the range hood when operating at the current gear, specifically:

[0116]

[0117] Where, V (x) is the current sound volume opening; V0 is the initial sound volume opening; SPL(n) is the current noise sound pressure level; SPL max is the upper threshold range hood noise sound pressure level; k is the curve slope.

[0118] Optionally, the range hood control device further includes:

[0119] A data storage module, configured to execute obtaining the kitchen data of the location where the range hood is located, and storing the kitchen data and the current noise sound pressure level of the range hood when operating at the current gear in the range hood in a corresponding manner, so that when the range hood is used next time, the current noise sound pressure level can be directly called to determine the corresponding current sound volume opening for operation and playback.

[0120] Optionally, obtaining the current noise sound pressure level of the range hood when operating at the current gear includes:

[0121] A current sound volume opening acquisition module, configured to execute obtaining the kitchen data of the location where the range hood is located, and calling the current noise sound pressure level of the range hood corresponding to the kitchen data stored in the range hood according to the kitchen data.

[0122] The range hood control device provided by the embodiments of the present invention can execute the range hood control method provided by any embodiment of the present invention, and has the corresponding function modules and beneficial effects for executing the range hood control method.

[0123] Based on the same inventive concept, Figure 10The structural schematic diagram of the range hood 610 that can be used to implement the embodiments of the present invention is shown. The range hood includes an audio device, such as Figure 10 As shown, the range hood 610 further includes at least one processor 611, and a memory communicatively connected to the at least one processor 611, such as a read-only memory (ROM 612), a random access memory (RAM 613), etc. Among them, the memory stores a computer program executable by the at least one processor. The processor 611 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM 612) or the computer program loaded from the storage unit 618 into the random access memory (RAM 613). In the RAM 613, various programs and data required for the operation of the range hood 610 can also be stored. The processor 611, the ROM 612, and the RAM 613 are connected to each other through a bus 614. The I / O (input / output) interface 615 is also connected to the bus 614.

[0124] Multiple components in the range hood 610 are connected to the I / O interface 615, including: an input unit 616, such as a keyboard, a mouse, etc.; an output unit 617, such as various types of displays, speakers, etc.; a storage unit 618, such as a magnetic disk, an optical disc, etc.; and a communication unit 619, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 619 allows the range hood 610 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0125] The processor 611 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 611 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 611 executes the various methods and processes described above, such as the range hood control method.

[0126] In some embodiments, the range hood control method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as the storage unit 618. In some embodiments, part or all of the computer program can be loaded and / or installed onto the range hood 610 via the ROM 612 and / or the communication unit 619. When the computer program is loaded into the RAM 613 and executed by the processor 611, one or more steps of the range hood control method described above can be executed. Alternatively, in other embodiments, the processor 611 can be configured to execute the range hood control method in any other appropriate manner (for example, by means of firmware).

[0127] The various embodiments of the systems and techniques described above in this specification can be implemented in digital electronic circuitry, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems-on-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that receives data and instructions from, and transmits data and instructions to, a storage system, at least one input device, and at least one output device.

[0128] The computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions / operations specified in the flowchart and / or block diagram to be implemented. The computer programs can be executed entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

[0129] In the context of this invention, a computer-readable storage medium can be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0130] To provide interaction with a user, the systems and techniques described herein can be implemented on a range hood that has: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which the user can provide input to the range hood. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0131] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected to each other by digital data communication in any form or medium (e.g., a communication network). Examples of communication networks include: local area network (LAN), wide area network (WAN), blockchain network, and the Internet.

[0132] The computing system can include a client and a server. The client and the server are generally remote from each other and typically interact through a communication network. The client-server relationship is created by computer programs that run on the respective computers and have a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system and solves the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services.

[0133] It should be understood that various forms of the processes shown above can be used, with steps reordered, added, or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is imposed herein.

[0134] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A control method for a range hood, the range hood including an audio device, characterized in that, including: Generating a sound pressure - volume curve of the audio device based on the playback audio volume of the audio device and the sound pressure level of the corresponding generated noise data under the working noise test experiment of the range hood, and obtaining a pre - calibrated upper - threshold range hood noise sound pressure level; Obtaining the current noise sound pressure level of the range hood when operating at the current gear, and determining the corresponding curve slope according to the current noise sound pressure level and the sound pressure - volume curve; Determining the current audio volume opening of the audio device when the range hood is operating at the current gear according to the current noise sound pressure level, the curve slope, and the upper - threshold range hood noise sound pressure level.

2. The control method of the range hood according to claim 1, wherein, Generating a sound pressure - volume curve of the audio device based on the playback audio volume of the audio device and the sound pressure level of the corresponding generated noise data under the working noise test experiment of the range hood, including: Collecting the playback audio volume of the audio device and the sound pressure level of the corresponding generated noise data at a set audio volume step under the working noise test experiment of the range hood, and generating a sound pressure - volume curve of the audio device according to the playback audio volume and the sound pressure level corresponding to each set audio volume step.

3. The control method of the range hood according to claim 1, wherein Obtaining the current noise sound pressure level of the range hood when operating at the current gear, including: Obtaining the current noise sound pressure level stored in the range hood corresponding to the range hood when operating at the current gear.

4. The method for controlling a range hood according to claim 1, wherein, Obtaining the current noise sound pressure level of the range hood when operating at the current gear, including: Collecting the noise data of the range hood running in real - time when operating at the current gear, and determining the current noise sound pressure level according to the noise data.

5. The method for controlling an oil fume extractor according to claim 1, wherein Before determining the current audio volume opening of the audio device when the range hood is operating at the current gear according to the current noise sound pressure level, the curve slope, and the upper - threshold range hood noise sound pressure level, further including: Obtaining the initial audio volume opening of the audio device; Determining the current audio volume opening of the audio device when the range hood is operating at the current gear according to the current noise sound pressure level, the curve slope, and the upper - threshold range hood noise sound pressure level, including: Determining the current audio volume opening of the audio device when the range hood is operating at the current gear based on the following formula, specifically: where V (x) is the current sound volume opening of the audio; V0 is the initial sound volume opening of the audio; SPL(n) is the current noise sound pressure level; SPL max is the upper threshold noise sound pressure level of the range hood; k is the curve slope.

6. The method for controlling a range hood according to claim 1, wherein, The range hood control method further includes: Obtaining the kitchen data of the location where the range hood is located, and storing the kitchen data and the current noise sound pressure level of the range hood when operating at the current gear in the range hood correspondingly, so that when the range hood is used next time, it can directly call the current noise sound pressure level and then determine the corresponding current audio volume opening for operation and playback.

7. The control method of the range hood according to claim 1, characterized in that, Obtaining the current noise sound pressure level of the range hood when operating at the current gear, including: Obtaining the kitchen data of the location where the range hood is located, and calling the current noise sound pressure level of the range hood corresponding to the range hood when operating at the current gear stored in the range hood according to the kitchen data.

8. An oil fume suction machine control device, wherein the oil fume suction machine includes an audio device, characterized in that, including: A data acquisition module, configured to generate a sound pressure - volume curve of the audio device based on the playback audio volume of the audio device and the corresponding sound pressure level of the generated noise data under the range hood working noise test experiment, and acquire a pre - calibrated upper - threshold range hood noise sound pressure level; A curve slope determination module, configured to acquire the current noise sound pressure level of the range hood operating at the current gear, and determine the corresponding curve slope according to the current noise sound pressure level and the sound pressure - volume curve; A volume opening determination module, configured to determine the current audio volume opening of the audio device when the range hood operates at the current gear according to the current noise sound pressure level, the curve slope, and the upper - threshold range hood noise sound pressure level.

9. A range hood, characterized in that, The range hood includes an audio device; The range hood further includes: At least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and when the computer program is executed by the at least one processor, the at least one processor is enabled to execute the range hood control method according to any one of claims 1 - 7.

10. A computer-readable storage medium, characterized in that The computer - readable storage medium stores computer instructions, and when the computer instructions are executed by a processor, the range hood control method according to any one of claims 1 - 7 is implemented.

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