Test method, system, device and storage medium for range hood

Abstract

The present disclosure is a test method, system, device and storage medium for a range hood. The test method for the range hood uses a smoke generating device to generate simulated smoke to test the range hood, the smoke generating device comprising an atomizing sheet for generating ultrasonic waves to atomize an atomizing agent into the simulated smoke; the test method comprising: obtaining a cooking mode that needs to be simulated; adjusting ultrasonic control parameters of the atomizing sheet according to the cooking mode, so that the atomizing sheet generates the simulated smoke that matches the cooking mode; controlling the range hood to operate, so as to test the oil smoke suction effect of the range hood. By adjusting the ultrasonic control parameters of the atomizing sheet, the atomizing sheet is controlled to atomize the atomizing agent. The oil smoke particle size of the atomized atomizing agent can be close to real oil smoke, so as to simulate the oil smoke of different cooking modes.

Description

Technical Field

[0001] This disclosure relates to the field of household appliance technology, and in particular to a testing method, system, device and storage medium for a range hood. Background Technology

[0002] For range hoods, their smoke extraction performance is a crucial metric. Therefore, to test this performance, it's necessary to simulate cooking fumes. Currently, the most common method for simulating cooking fumes is to heat emulsified oil to generate smoke. However, this method is not only highly polluting but also wastes cooking oil and gas, making it inefficient.

[0003] Furthermore, the atomizing cookware used for demonstrations at the sales end simulates cooking fumes using ultrasonic atomization. While this method of simulating cooking fumes is environmentally friendly and safe, the atomized particle size in this mode is concentrated at 1.7μm, whereas the particle size of real cooking fumes is generally concentrated at 0.6μm, which is much larger than real cooking fume particles. Therefore, the simulated cooking fumes generated by ultrasonic atomization differ significantly from real cooking fumes in their aerodynamic characteristics and morphology, and cannot be truly used to demonstrate or evaluate the fume extraction effect of range hoods. Summary of the Invention

[0004] The problem this disclosure aims to solve is to overcome the deficiency in the prior art where the particle size of simulated oil fumes cannot simulate real oil fumes, and to provide a testing method, system, device and storage medium for range hoods.

[0005] This disclosure solves the above-mentioned technical problems through the following technical solution:

[0006] This disclosure provides a testing method for a range hood. The method utilizes a fume generating device to produce simulated cooking fumes to test the range hood. The fume generating device includes an atomizing plate, which generates ultrasonic waves to atomize an atomizing agent into the simulated cooking fumes. The testing method includes:

[0007] Obtain the cooking method that needs to be simulated;

[0008] The ultrasonic control parameters of the atomizing plate are adjusted according to the cooking method so that the atomizing plate produces the simulated oil fumes that match the cooking method.

[0009] Control the operation of the range hood to test its smoke extraction effect.

[0010] Preferably, adjusting the ultrasonic control parameters of the atomizing plate according to the cooking method includes:

[0011] Obtain a first mapping relationship between the atomizing agent and the ultrasonic control parameters under the cooking method;

[0012] The ultrasonic control parameters are adjusted according to the first mapping relationship.

[0013] Preferably, the fume generating device includes a fan, the fan being used to discharge the simulated oil fumes from the fume generating device; the testing method includes:

[0014] Based on the second mapping relationship between the cooking method and the fan speed, the target speed is determined; the fan is then controlled to operate at the target speed.

[0015] Preferably, the ultrasonic control parameters include at least one of the following: ultrasonic frequency, power, and number of activations; adjusting the ultrasonic control parameters according to the first mapping relationship includes:

[0016] When the ultrasonic control parameters include ultrasonic frequency, the ultrasonic frequency of the operating atomizing plate is adjusted according to the mapping relationship;

[0017] When the ultrasonic control parameters include power, the power of the operating atomizing plate is adjusted according to the mapping relationship;

[0018] When the ultrasonic control parameters include the number of activations, the number of activations of the operating atomizing plate is adjusted according to the mapping relationship.

[0019] This disclosure also provides a testing system for a range hood. The testing system utilizes a fume generator to produce simulated cooking fumes to test the range hood. The fume generator includes an atomizing plate, which generates ultrasonic waves to atomize an atomizing agent into the simulated cooking fumes. The testing system includes:

[0020] The acquisition module is used to acquire the cooking method that needs to be simulated;

[0021] An adjustment module is used to adjust the ultrasonic control parameters of the atomizing plate according to the cooking method, so that the atomizing plate produces the simulated oil fumes that match the cooking method;

[0022] The control module is used to control the operation of the range hood in order to test the range hood's smoke extraction effect.

[0023] Preferably, the adjustment module includes:

[0024] A parameter acquisition unit is used to acquire a first mapping relationship between the atomizing agent and the ultrasonic control parameters under the cooking method.

[0025] A parameter adjustment unit is used to adjust the ultrasonic control parameters according to the first mapping relationship.

[0026] Preferably, the fume generating device includes a fan for discharging the simulated oil fumes from the fume generating device; the testing system includes:

[0027] The rotation speed determination module is used to determine the target rotation speed based on a second mapping relationship between the cooking method and the rotation speed of the fan;

[0028] The fan control module is used to control the fan to operate at the target speed.

[0029] Preferably, the ultrasonic control parameters include at least one of the following: ultrasonic frequency, power, and activation quantity; the parameter adjustment unit is used for:

[0030] When the ultrasonic control parameters include ultrasonic frequency, the ultrasonic frequency of the operating atomizing plate is adjusted according to the mapping relationship;

[0031] When the ultrasonic control parameters include power, the power of the operating atomizing plate is adjusted according to the mapping relationship;

[0032] When the ultrasonic control parameters include the number of activations, the number of activations of the operating atomizing plate is adjusted according to the mapping relationship.

[0033] This disclosure also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and for running on the processor, wherein the processor executes the computer program to implement the aforementioned test method for a range hood.

[0034] This disclosure also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the aforementioned test method for a range hood.

[0035] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this disclosure.

[0036] The positive and progressive effect of this disclosure is that by adjusting the ultrasonic control parameters of the atomizing plate, the atomizing plate can be controlled to atomize the atomizing agent. This allows the particle size of the atomized oil smoke to closely resemble that of real oil smoke, thus simulating the oil smoke from different cooking modes. Attached Figure Description

[0037] Figure 1 A flowchart illustrating a testing method for a range hood provided as an exemplary embodiment of this disclosure;

[0038] Figure 2 A schematic diagram of a test system for a range hood provided as an exemplary embodiment of this disclosure;

[0039] Figure 3A schematic diagram of the structure of an oil fume generator provided for an exemplary embodiment of this disclosure;

[0040] Figure 4 A cross-sectional structural diagram of an oil fume generating device provided as an exemplary embodiment of this disclosure;

[0041] Figure 5 A schematic diagram of a test scenario for a range hood provided as an exemplary embodiment of this disclosure;

[0042] Figure 6 A schematic diagram of a parallel white light source and a monochrome industrial camera for a test scenario of a range hood provided as an exemplary embodiment of this disclosure;

[0043] Figure 7 A schematic diagram of a smoke-controlled area and a smoke-escape area in an image captured by a monochrome industrial camera, provided as an exemplary embodiment of this disclosure;

[0044] Figure 8 This is a schematic diagram of the structure of an electronic device provided as an exemplary embodiment of the present disclosure. Detailed Implementation

[0045] The present disclosure is further illustrated below by way of embodiments, but the present disclosure is not limited to the scope of the embodiments described herein.

[0046] Extracting cooking fumes is the primary function of a range hood, and its extraction efficiency is a crucial indicator of its performance. Therefore, during the research and development testing phase, range hoods need to be tested, primarily simulating the extraction of different cooking fumes under varying conditions to evaluate their effectiveness. To replace traditional fume simulation methods, this disclosure mainly utilizes ultrasonic principles combined with atomizing agents to simulate cooking fumes. The specific testing methods for this range hood will be detailed below.

[0047] Figure 1 The flowchart illustrates a testing method for a range hood, provided as an exemplary embodiment of this disclosure. This method utilizes a fume generator to produce simulated cooking fumes to test the range hood. The fume generator includes an atomizing plate that generates ultrasonic waves to atomize an atomizing agent into simulated cooking fumes. The testing method includes:

[0048] Step 101: Obtain the cooking method to be simulated.

[0049] Different cooking methods produce different types of fumes, mainly in terms of particle size, smoke intensity, rising speed, and expansion angle. Therefore, in this step, we need to obtain the cooking methods that need to be simulated in order to simulate different types of fumes.

[0050] Step 102: Adjust the ultrasonic control parameters of the atomizing plate according to the cooking method so that the atomizing plate produces simulated oil fumes that match the cooking method.

[0051] The atomizing plate utilizes high-frequency electronic oscillation to induce high-frequency resonance in the atomizing agent, thereby achieving an atomization effect. The ultrasonic frequency can also be adjusted according to specific requirements; for example, the ultrasonic frequency of the atomizing plate can be 1.7MHz and / or 2.4MHz. It should be understood that even with the same ultrasonic frequency range for the atomizing plate, different atomizing agents will produce different atomization effects for simulated cooking fumes. For instance, adding a solution of glucose or glycerin to water as an atomizing agent can reduce the particle size of the simulated cooking fumes.

[0052] In one embodiment, adjusting the ultrasonic control parameters of the atomizing plate according to the cooking method includes: obtaining a first mapping relationship between the atomizing agent and the ultrasonic control parameters under the cooking method, and adjusting the ultrasonic control parameters according to the first mapping relationship. This first mapping relationship can be obtained through theoretical calculations or experimental data. Specifically, the experimental data consists of experimental data on the particle size, rising velocity, and smoke intensity of simulated cooking fumes produced by different atomizing agents under different ultrasonic frequencies, power levels, and activation counts. The first mapping relationship between the atomizing agent and the ultrasonic control parameters is derived from this experimental data. Since different types of atomizing agents combined with different ultrasonic frequencies produce different atomization effects, experiments are conducted to verify the different atomization effects of a single atomizing agent under different ultrasonic control parameters.

[0053] The ultrasonic control parameters include at least one of the following: ultrasonic frequency, power, and number of activated atomizing plates. The ultrasonic frequency is the vibration frequency of the atomizing plates, the power is the operating power of the atomizing plates, and the number of activated atomizing plates is the number of atomizing plates involved in generating simulated smoke. Different simulated smoke effects can be achieved by controlling these parameters. Adjusting the ultrasonic control parameters according to a first mapping relationship includes: when the ultrasonic control parameters include ultrasonic frequency, adjusting the ultrasonic frequency of the operating atomizing plates according to the mapping relationship; when the ultrasonic control parameters include power, adjusting the power of the operating atomizing plates according to the mapping relationship; and when the ultrasonic control parameters include the number of activated atomizing plates, adjusting the number of activated atomizing plates according to the mapping relationship.

[0054] The particle size of simulated cooking fumes can be adjusted by modifying the ultrasonic frequency of the atomizing plate or the properties of the atomizing agent itself. The calculation of the simulated smoke particle size follows this formula:

[0055]

[0056] Where d represents the particle size of the simulated smoke, σ represents the surface tension of the atomizing agent, ρ represents the density of the atomizing agent, and ω represents the ultrasonic frequency of the atomizing plate. Therefore, the particle size of the simulated cooking fumes is influenced not only by the properties of the atomizing agent itself but also by the ultrasonic frequency. For the same atomizing agent, since the surface tension and density are already determined, the ultrasonic frequency of the atomizing plate determines the particle size of the simulated cooking fumes. The higher the ultrasonic frequency, the smaller the particle size of the simulated cooking fumes; conversely, the lower the ultrasonic frequency, the larger the particle size of the simulated cooking fumes. Optionally, the ultrasonic frequency of the atomizing plate can be at least one of 1.7MHz, 2.4MHz, or 3.0MHz. Therefore, when simulating larger particle sizes of simulated cooking fumes, such as simulating fumes produced by boiling, a lower ultrasonic frequency can be used, with water as the atomizing agent to generate the simulated fumes; for example, simulating fumes produced by ultrasonically atomizing water at an ultrasonic frequency of 1.7MHz. When it is necessary to simulate oil fumes with smaller particle sizes, simply increasing the ultrasonic frequency can reduce the particle size of the simulated oil fumes. For example, if the atomizer is kept as water, increasing the ultrasonic frequency from 1.7MHz to 3.0MHz can reduce the particle size of the simulated oil fumes.

[0057] Furthermore, for the same ultrasonic frequency, the particle size of simulated cooking fumes is determined by the surface tension and density of the atomizing agent. The greater the surface tension of the atomizing agent, the larger the simulated cooking fume particle size; conversely, the smaller the surface tension, the smaller the simulated cooking fume particle size. Similarly, for the same ultrasonic frequency, the greater the density of the atomizing agent, the smaller the simulated cooking fume particle size; conversely, the smaller the density, the larger the simulated cooking fume particle size. Therefore, when simulating smaller particle sizes of simulated cooking fumes, such as simulating cooking methods involving a large amount of cooking oil (frying, stir-frying, etc.), the particle size of real cooking fumes produced by these methods is mainly concentrated around 0.6 μm. To simulate this smaller particle size of real cooking fumes, a liquid with a higher density and lower surface tension can be used as the atomizing agent. For example, adding a small amount of glucose to water to form a glucose solution produces smaller simulated cooking fumes. Similarly, optionally adding glycerol to water to form a glycerol solution as the atomizing agent, combined with an ultrasonic frequency of 2.4 MHz, will also produce simulated cooking fumes with smaller particle sizes.

[0058] To simulate the intensity of real cooking fumes, the intensity can be adjusted by changing the power of the atomizing discs and the number of discs involved in generating the simulated fumes. Higher power produces stronger simulated fumes, and vice versa. Similarly, more atomizing discs result in stronger simulated fumes, and fewer discs result in weaker simulated fumes.

[0059] For simulating realistic cooking fumes, simulating the rising speed of real cooking fumes is also important. This is because the rising speed of fumes varies depending on the cooking method. For example, the rising speed of fumes from frying French fries is 0.4–0.6 m / s, from stir-frying shredded potatoes is 0.6–0.8 m / s, and from burning oil alone is 0.8–1.0 m / s. In one embodiment, the fume generating device includes a fan used to exhaust simulated cooking fumes from the device. The testing method includes: determining a target rotational speed based on a second mapping relationship between the cooking method and the fan's rotational speed; and controlling the fan to operate at the target rotational speed. When simulating higher rising speeds of cooking fumes, the fan speed can be increased to increase the rising speed of the simulated fumes. Similarly, the fan speed can be decreased to decrease the rising speed of the simulated cooking fumes.

[0060] This second mapping relationship can be obtained through theoretical calculations or experimental data. Specifically, the experimental data consists of simulated fumes rising at different fan speeds. The simulated fume rising speed is then compared with the actual fumes rising speed corresponding to different cooking methods. This establishes a second mapping relationship between cooking methods and fan speed, ensuring that the fan speed can simulate the actual fumes rising speed.

[0061] Step 103: Control the operation of the range hood to test its smoke extraction effect.

[0062] Through the above embodiments, the testing method for this range hood can simulate the simulated fumes of a cooking method. This simulated fumes can mimic the particle size, rising speed, and smoke intensity of real fumes, providing a more realistic fume environment for range hood testing and obtaining more accurate evaluation data. Furthermore, because this testing method does not use real fumes, it not only avoids the negative impact of real fumes on testers but also achieves energy conservation and emission reduction effects.

[0063] Reference Figure 2 This is a schematic diagram of a testing system for a range hood provided in an exemplary embodiment of the present disclosure. The testing system corresponds to a testing method for a range hood. The testing system utilizes a fume generator to produce simulated cooking fumes to test the range hood. The fume generator includes an atomizing plate, which generates ultrasonic waves to atomize an atomizing agent into simulated cooking fumes. The testing system includes:

[0064] Module 21 is used to obtain the cooking method to be simulated;

[0065] The adjustment module 22 is used to adjust the ultrasonic control parameters of the atomizing plate according to the cooking method, so that the atomizing plate produces simulated oil fumes that match the cooking method;

[0066] Control module 23 is used to control the operation of the range hood in order to test the range hood's smoke extraction effect.

[0067] Optionally, the adjustment module includes:

[0068] The parameter acquisition unit is used to acquire the first mapping relationship between the atomizing agent and the ultrasonic control parameters under the cooking method;

[0069] The parameter adjustment unit is used to adjust the ultrasonic control parameters according to the mapping relationship.

[0070] Optionally, the fume generating device includes a fan for discharging simulated fumes from the fume generating device; the testing system includes:

[0071] The speed determination module is used to determine the speed of the fan based on a second mapping relationship between the cooking method and the fan speed.

[0072] Determine the target rotational speed;

[0073] The fan control module is used to control the fan to run at the target speed.

[0074] Optionally, the ultrasonic control parameters include at least one of the following: ultrasonic frequency, power, and number of activations; the parameter adjustment unit is used for:

[0075] When the ultrasonic control parameters include ultrasonic frequency, the ultrasonic frequency of the operating atomizing plate is adjusted according to the mapping relationship.

[0076] When the ultrasonic control parameters include power, the power of the operating atomizing plate is adjusted according to the mapping relationship;

[0077] When the ultrasonic control parameters include the number of activations, the number of activations of the operating atomizing plates is adjusted according to the mapping relationship.

[0078] Through the above embodiments, the testing system for this range hood can simulate the fumes produced by a specific cooking method. This simulated fume can mimic the particle size, rising speed, and smoke intensity of real cooking fumes, providing a more realistic fume environment for range hood testing and obtaining more accurate evaluation data. Furthermore, because this testing method does not use real cooking fumes, it not only avoids the negative impact of real fumes on testers but also achieves energy conservation and emission reduction.

[0079] Figure 3 This is a schematic diagram of the structure of an oil fume generating device provided as an exemplary embodiment of the present disclosure. Figure 4 A cross-sectional structural schematic diagram of an oil fume generating device provided in an exemplary embodiment of this disclosure is shown below. Figure 3 and Figure 4The fume generator includes: an atomizing plate 31, a 1.7MHz atomizing baffle 32, a coarse particle atomizing chamber 33, a fine particle atomizing chamber 34, a 2.4MHz atomizing baffle 35, a 2.4MHz atomizing plate 36, a fan 37, and an airflow channel 38.

[0080] The atomizing plate 31, with a frequency of 1.7 MHz, generates 1.7 MHz ultrasound waves to atomize the atomizing agent. A 1.7 MHz atomizing baffle 32 prevents liquid splashing of the atomizing agent caused by the ultrasonic vibration of the 1.7 MHz atomizing plate 31. A coarse-particle atomizing chamber 33 holds the atomizing agent that produces larger-particle simulated cooking fumes. For example, adding pure water to the coarse-particle atomizing chamber, combined with the ultrasound waves generated by the 1.7 MHz atomizing plate, can produce simulated cooking fumes with a particle size distribution concentrated at 1.7 μm. A 2.4 MHz atomizing plate 36 generates 2.4 MHz ultrasound waves to atomize the atomizing agent. A 2.4 MHz atomizing baffle 35 prevents liquid splashing of the atomizing agent caused by the ultrasonic vibration of the 2.4 MHz atomizing plate 36. The fine-particle atomizing chamber 34 holds the atomizing agent that produces simulated oil fumes with smaller particle sizes. For example, adding the formulated atomizing agent into the fine-particle atomizing chamber, combined with the ultrasonic waves generated by the 2.4MHz atomizing plate 36, can produce simulated oil fumes with a particle size distribution concentrated at 0.6μm. The fan 37 provides upward airflow to provide the kinetic energy to mix the two simulated oil fumes with different particle sizes and to make the mixed simulated oil fumes rise. It also serves to dissipate heat from the atomizing plate. The airflow channel 38 forms an upward central airflow, guiding the airflow into the mixing chamber 39.

[0081] Additionally, see Figure 4 The fume generator also includes a mixing chamber 39. The mixing chamber 39 is used to mix two types of simulated oil fumes with different particle sizes, and finally discharge simulated oil fumes that conform to real oil fumes.

[0082] Figure 5 This is a schematic diagram of a test scenario for a range hood provided as an exemplary embodiment of this disclosure. Figure 6 A schematic diagram of a parallel white light source and a monochrome industrial camera for a test scenario of a range hood, provided as an exemplary embodiment of this disclosure. (Refer to...) Figure 5 and Figure 6 It is known that the test scenario for this range hood includes: a fume generator 41, the range hood under test 42, a lifting platform 43, a parallel white light source 44, and a monochrome industrial camera 45. When testing the fume extraction effect of the range hood under test 42 in the laboratory, the test steps include:

[0083] Step 401: Apply a matte finish to the surface of the range hood 42 to avoid surface reflection interfering with the data collection of oil fumes; adjust the height of the lifting platform 43 and suspend the range hood 42 to the specified height according to the manufacturer's recommended height.

[0084] Step 402: Turn on the range hood 42 under test and run it continuously for 1800 seconds. This step serves to preheat the range hood 42 under test and clean the air environment inside the test chamber.

[0085] Step 403: Turn on the parallel white light source 44 and the industrial camera 45, and take 600 images under conditions without simulated oil fumes. After marking the images with serial numbers, save them for use in the background image calculation in step 501. The parallel white light source 44 is used to provide illumination, and the industrial camera 45 is used for image data acquisition.

[0086] Step 404: Adjust the range hood 42 under test to the desired fan speed setting. For example, the range hood 42 under test may have low, medium, and high speed settings. The tests can be performed sequentially in the order of low, medium, and high speed.

[0087] Step 405: Turn on the fume generator 41 to generate simulated oil fumes in "boiling" mode. In this mode, the 1.7MHz atomizing plate is turned on, and the rising speed is adjusted to 0.8m / s. In this mode, the monochrome industrial camera 45 acquires 600 images, labels them with serial numbers, and saves them.

[0088] Step 406: Adjust the fume generator 41 to generate simulated oil fumes in "explosion" mode. In this mode, only the 2.4MHz atomizing plate is activated, and the rising speed is adjusted to 0.6m / s. In this mode, the monochrome industrial camera 45 acquires 600 images, labels them with serial numbers, and saves them.

[0089] Step 407: Adjust the fume generator 41 to generate simulated fumes in "stir-fry" mode. In this mode, all 1.7MHz and 2.4MHz atomizing plates are activated, and the rising speed is adjusted to 0.8m / s. An industrial camera captures 600 images in this mode, labels them with serial numbers, and saves them.

[0090] Step 408: Adjust the range hood 42 under test to the other settings, and repeat steps 405, 406, and 407 until image data acquisition is completed for all settings under the conditions of generating simulated oil fumes in "boiling" mode, "frying" mode, and "stir-frying" mode.

[0091] The main function of steps 401 to 408 is to acquire image data simulating oil fume conditions generated by a monochrome industrial camera 45 under different settings and cooking modes, including "boiling," "frying," and "stir-frying." After completing the above steps, the acquired image data needs to be processed, including the following steps:

[0092] Step 501: Process the 600 images acquired in step 403. Specifically, sum the gray values ​​of pixels at the same location in the 600 images, and then calculate the average gray value of all pixels. The resulting image is the background image.

[0093] Step 502: Determine the boundaries of the smoke-free zone and the smoke-avoiding zone. (Refer to...) Figure 7 As can be seen, the area being captured is the smoke-prone area, and the area marked with a dotted line is the smoke-controlled area. The shooting range of the monochrome industrial camera 45 includes both the smoke-prone area and the smoke-controlled area.

[0094] Step 503: Extract the first image captured in step 405 under simulated cooking fume conditions in "cooking" mode. Subtract the grayscale values ​​of all pixels in this image from the grayscale values ​​of the corresponding pixels in the background image in step 501. The final image presented by all pixels is the cooking fume image in "cooking" mode. Mark the cooking fume image with a sequence number and save it.

[0095] Step 504: Perform image noise reduction processing on the oil fume image obtained in step 503.

[0096] Step 505: Calculate the sum of the gray values ​​of all pixels in the smoke-prone area of ​​the smoke image after noise reduction, which is X. i , where i is the sequence number, and in this embodiment i is from 1 to 600.

[0097] Step 506: Calculate the sum of the gray values ​​of all pixels in the smoke control area of ​​the smoke image after noise reduction processing, which is Y. i , where i is the sequence number, and in this embodiment i is from 1 to 600.

[0098] Step 507: Continue extracting the "cooking" mode to generate the next oil fume image captured under simulated oil fume conditions. Repeat steps 504, 505, and 506 until all 600 oil fume images have been processed.

[0099] Step 508: Calculate the escape rate. The formula for calculating the escape rate is as follows:

[0100]

[0101] Where E is the escape rate, which refers to the ratio of the amount of oil fume escaping to the amount of oil fume entering when the range hood is on. In this embodiment, the amount of oil fume escaping and the amount of oil fume entering are represented by the accumulation of image pixel grayscale values.

[0102] Step 509: Repeat steps 502 to 508 to process the images captured under simulated oil fume conditions in the "frying" and "stir-frying" modes respectively.

[0103] Step 510: Calculate all escape rate data obtained in the above steps.

[0104] It should be understood that the amount of image data acquired by the industrial camera 45 can be adjusted according to actual needs, the cooking mode is not limited to "boiling", "frying" and "stir-frying", the range hood 42 being tested is not limited to low, medium and high speed, and the way the image data is processed can be adjusted according to actual needs.

[0105] Figure 8 This is a schematic diagram of the structure of an electronic device provided in this embodiment. The electronic device includes a memory, a processor, and a computer program stored in the memory and used to run on the processor. When the processor executes the program, it implements the testing method for the range hood provided in any of the above embodiments. Figure 8 The electronic device 300 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments disclosed herein.

[0106] Reference Figure 8 The electronic device 300 can be manifested in the form of a general-purpose computing device, such as a server device. The components of the electronic device 300 may include, but are not limited to: at least one processor 301, at least one memory 302, and a bus 303 connecting different system components (including memory 302 and processor 301).

[0107] Bus 303 includes a data bus, an address bus, and a control bus.

[0108] The memory 302 may include volatile memory, such as random access memory (RAM) 321 and / or cache memory 322, and may further include read-only memory (ROM) 323.

[0109] The memory 302 may also include a program / utility 325 having a set (at least one) of program modules 324, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0110] The processor 301 executes various functional applications and data processing by running computer programs stored in the memory 302, such as the testing method for a range hood in this embodiment of the present disclosure.

[0111] Electronic device 300 can also communicate with one or more external devices 304 (e.g., keyboard, pointing device, etc.). This communication can be performed through input / output (I / O) interface 305. Furthermore, the model-generated device 300 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public network, such as the Internet) via network adapter 306. As shown, network adapter 306 communicates with other modules of the model-generated device 300 via bus 303. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the model-generated device 300, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0112] It should be noted that although several units / modules or sub-units / modules of the electronic device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0113] This embodiment also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the testing method for the range hood provided in any of the above embodiments.

[0114] The readable storage medium may be more specifically adopted, including but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device, or any suitable combination thereof.

[0115] In a possible implementation, this disclosure can also be implemented as a program product comprising program code, which, when the program product is run on a terminal device, is used to cause the terminal device to execute the test method for the range hood provided in any of the above embodiments.

[0116] The program code for executing this disclosure can be written in any combination of one or more programming languages. This program code can be executed entirely on a user device, partially on a user device, as a standalone software package, partially on a user device and partially on a remote device, or entirely on a remote device. While specific embodiments of this disclosure have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this disclosure, but all such changes and modifications fall within the scope of protection of this disclosure.

Claims

1. A testing method for a range hood, characterized in that, The testing method for the range hood utilizes a fume generator to produce simulated cooking fumes to test the range hood. The fume generator includes an atomizing plate, which generates ultrasonic waves to atomize an atomizing agent into the simulated cooking fumes. The testing method includes: Obtain the cooking method that needs to be simulated; The ultrasonic control parameters of the atomizing plate are adjusted according to the cooking method so that the atomizing plate produces the simulated oil fumes that match the cooking method; the ultrasonic control parameters include ultrasonic frequency, power, and number of activations. Control the operation of the range hood to test its smoke extraction effect; The step of adjusting the ultrasonic control parameters of the atomizing plate according to the cooking method includes: obtaining a first mapping relationship between the atomizing agent and the ultrasonic control parameters under the cooking method; and adjusting the ultrasonic control parameters according to the first mapping relationship. The first mapping relationship is determined based on experimental data of the particle size, rising speed and smoke intensity of simulated oil fumes produced by different atomizing agents under different ultrasonic frequencies, powers and activation numbers; The step of adjusting the ultrasonic control parameters of the atomizing plate according to the cooking method further includes: The particle size of simulated cooking fumes can be adjusted by changing the ultrasonic frequency of the atomizing plate or the properties of the atomizing agent itself. For the same ultrasonic frequency, the particle size of the simulated oil fume is determined by the surface tension and density of the atomizing agent; The fume generating device includes a fan, which is used to discharge the simulated oil fumes from the fume generating device; the test method includes: Based on the second mapping relationship between the cooking method and the fan speed, the target speed is determined; the fan is then controlled to operate at the target speed.

2. The test method for a range hood according to claim 1, characterized in that, The step of adjusting the ultrasound control parameters according to the first mapping relationship includes: When the ultrasonic control parameters include ultrasonic frequency, the ultrasonic frequency of the operating atomizing plate is adjusted according to the first mapping relationship; When the ultrasonic control parameters include power, the power of the operating atomizing plate is adjusted according to the first mapping relationship; When the ultrasonic control parameters include the number of activations, the number of activations of the operating atomizing plate is adjusted according to the first mapping relationship.

3. A testing system for a range hood, characterized in that, The testing system for the range hood utilizes a fume generator to produce simulated cooking fumes to test the range hood. The fume generator includes an atomizing plate, which generates ultrasonic waves to atomize an atomizing agent into the simulated cooking fumes. The testing system includes: The acquisition module is used to acquire the cooking method that needs to be simulated; An adjustment module is used to adjust the ultrasonic control parameters of the atomizing plate according to the cooking method, so that the atomizing plate produces the simulated oil fumes that match the cooking method; the ultrasonic control parameters include ultrasonic frequency, power, and activation quantity; A control module is used to control the operation of the range hood in order to test the range hood's smoke extraction effect; The adjustment module includes: A parameter acquisition unit is used to acquire a first mapping relationship between the atomizing agent and the ultrasonic control parameters under the cooking method. A parameter adjustment unit is used to adjust the ultrasonic control parameters according to the first mapping relationship; The first mapping relationship was determined based on experimental data of the particle size, rising velocity, and smoke intensity of simulated oil fumes produced by different atomizing agents under different ultrasonic frequencies, powers, and activation numbers. The parameter acquisition unit is also used to: adjust the particle size of simulated oil fumes by adjusting the ultrasonic frequency of the atomizing plate or the properties of the atomizing agent itself. For the same ultrasonic frequency, the particle size of the simulated oil fume is determined by the surface tension and density of the atomizing agent; The fume generating device includes a fan, which is used to discharge the simulated oil fumes from the fume generating device; the testing system includes: The rotation speed determination module is used to determine the target rotation speed based on a second mapping relationship between the cooking method and the rotation speed of the fan; The fan control module is used to control the fan to operate at the target speed.

4. The testing system for a range hood according to claim 3, characterized in that, The parameter adjustment unit is used for: When the ultrasonic control parameters include ultrasonic frequency, the ultrasonic frequency of the operating atomizing plate is adjusted according to the first mapping relationship; When the ultrasonic control parameters include power, the power of the operating atomizing plate is adjusted according to the first mapping relationship; When the ultrasonic control parameters include the number of activations, the number of activations of the operating atomizing plate is adjusted according to the first mapping relationship.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and for running on the processor, characterized in that, When the processor executes the computer program, it implements the testing method for the range hood according to any one of claims 1 to 2.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the testing method for the range hood according to any one of claims 1 to 2.

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