Illumination control method of intelligent range hood and intelligent range hood

Abstract

The invention relates to an illumination control method of an intelligent range hood and the intelligent range hood, and is applied to the field of intelligent electric appliances, and the illumination control method of the intelligent range hood comprises the following steps: obtaining a plurality of quantum dot electric signals; the plurality of quantum dot electric signals are used for transmitting pulse light signals to quantum dots based on an ultraviolet excitation source and are received by a photoelectric sensor; determining a light attenuation value of the semiconductor lamp according to the plurality of quantum dot electric signals; determining a compensation current of the semiconductor lamp based on the light attenuation value; and controlling the intelligent range hood to perform illumination compensation on the semiconductor lamp based on the compensation current. According to the invention, the situation that the cooking experience of a user is influenced by the color temperature and brightness change caused by the light attenuation effect generated when the user uses the semiconductor lamp is avoided.

Description

Technical Field

[0001] This application relates to the field of smart appliances, and in particular to a lighting control method for a smart range hood and a smart range hood. Background Technology

[0002] As people's living standards improve and technologies such as the internet, big data, artificial intelligence, and voice interaction become more widespread, traditional lifestyles are gradually changing, and the use of home appliances is increasingly moving towards intelligentization. While bringing more convenience to users, the functions of various home appliances are also becoming more diversified.

[0003] Currently, smart range hoods are generally equipped with LED lights as illumination for the cooking area. However, due to the significant light decay characteristics of semiconductor lamps, including LEDs, the output power of LED lights decreases with usage time and temperature changes, resulting in brightness variations. This leads to a poor viewing experience for users regarding the color changes of cooked food. Therefore, it is urgent to solve the problem of reduced lighting brightness in smart range hoods caused by the inherent light decay characteristics of semiconductor lamps.

[0004] There is currently no effective solution to the problem of reduced lighting brightness in smart range hoods due to the unique light decay characteristics of semiconductor lamps. Summary of the Invention

[0005] This embodiment provides a lighting control method for a smart range hood and a smart range hood, in order to solve the problem in related technologies where the lighting brightness of a smart range hood decreases due to the unique light decay characteristics of semiconductor lamps.

[0006] In a first aspect, this embodiment provides a lighting control method for an intelligent range hood, the intelligent range hood including a semiconductor lamp; the semiconductor lamp is encapsulated with quantum dots, the semiconductor lamp includes an ultraviolet excitation source, and multiple photoelectric sensors respectively provided with filters of different wavelength ranges; the method includes:

[0007] Multiple quantum dot electrical signals are acquired; the multiple quantum dot electrical signals are emitted from the ultraviolet excitation source to the quantum dots and received by the photoelectric sensor;

[0008] The light decay value of the semiconductor lamp is determined based on the multiple quantum dot electrical signals.

[0009] Based on the light decay value, the compensation current of the semiconductor lamp is determined; based on the compensation current, the intelligent range hood is controlled to provide lighting compensation for the semiconductor lamp.

[0010] In some embodiments, determining the light decay value of the semiconductor lamp based on the quantum dot electrical signal includes:

[0011] The degree of aging of the semiconductor lamp is determined based on the multiple quantum dot electrical signals.

[0012] Based on the aging degree and a preset calibration formula, the spectral peak shift of the quantum dot is determined; the preset calibration formula is used to characterize the monotonic relationship between the aging degree of the semiconductor lamp and the spectral peak shift of the quantum dot.

[0013] The light decay value of the semiconductor lamp is determined based on the spectral peak shift of the quantum dot.

[0014] In some embodiments, the plurality of quantum dot electrical signals include a first quantum dot electrical signal obtained through a first wavelength range filter and a second quantum dot electrical signal obtained through a second wavelength range filter;

[0015] The determination of the aging degree of the semiconductor lamp based on the plurality of quantum dot electrical signals includes:

[0016] Calculate the ratio of the first quantum dot electrical signal to the second quantum dot electrical signal;

[0017] Based on the ratio, the aging value of the semiconductor lamp is determined; the aging value is used to characterize the degree of aging of the semiconductor lamp.

[0018] In some embodiments, the method further includes:

[0019] Based on the fluorescence spectral intensity corresponding to the pulsed light signal emitted by the ultraviolet excitation source and the preset photoelectric conversion coefficient in the photoelectric sensor, the multiple quantum dot electrical signals are determined in multiple spectral ranges.

[0020] In some embodiments, after determining the light decay value of the semiconductor lamp, the method further includes:

[0021] Determine whether the light decay value of the semiconductor lamp is within a preset light decay threshold range;

[0022] If it is determined that the light decay value of the semiconductor lamp has not reached the preset light decay threshold range, the current driving state of the semiconductor lamp shall be maintained.

[0023] In some embodiments, after determining the light decay value of the semiconductor lamp, the method further includes:

[0024] If the light decay value of the semiconductor lamp exceeds the preset light decay threshold range, an aging signal for the semiconductor lamp is generated.

[0025] In some embodiments, determining the compensation current of the semiconductor lamp based on the light decay value includes:

[0026] If it is determined that the light decay value of the semiconductor lamp is within the preset light decay threshold range, the target lamp bead currently in working state in the semiconductor lamp is obtained;

[0027] The compensation current of the target LED is determined based on the preset initial driving current and preset current compensation coefficient of the target LED, as well as the light attenuation value.

[0028] Secondly, this embodiment provides an intelligent range hood, including a controller and a semiconductor lamp; the controller is used to perform lighting compensation on the semiconductor lamp by employing the lighting control method of the intelligent range hood as described in the first aspect.

[0029] Thirdly, this embodiment provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the lighting control method for the intelligent range hood described in the first aspect.

[0030] Fourthly, this embodiment provides a storage medium storing a computer program that, when executed by a processor, implements the lighting control method for the intelligent range hood described in the first aspect.

[0031] Compared with related technologies, the lighting control method and intelligent range hood provided in this embodiment, by encapsulating quantum dots on the semiconductor lamp of the intelligent range hood, emits pulsed light signals to the quantum dots through an ultraviolet excitation source, and receives them through filters of different wavelength ranges by different photoelectric sensors to obtain quantum dot electrical signals; based on the quantum dot electrical signals, the influence of light intensity fluctuations is eliminated, and the light decay status of the current semiconductor lamp is determined. Then, based on the light decay status, a compensation current is determined, and the lighting of the semiconductor lamp is controlled according to the compensation current to compensate for the light decay of the semiconductor lamp in a timely manner, so as to avoid the light decay effect when the user uses the semiconductor lamp, resulting in changes in color temperature and brightness, which affects the user's cooking experience.

[0032] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0034] Figure 1 This is a hardware structure block diagram of the terminal of the lighting control method for an intelligent range hood provided in the embodiments of this application;

[0035] Figure 2 This is an installation diagram of the lighting system of the intelligent range hood provided in the embodiments of this application;

[0036] Figure 3 This is a flowchart of the lighting control method for an intelligent range hood provided in an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of the system architecture of the smart range hood provided in this specific embodiment;

[0038] Figure 5 This is a flowchart of the control method for the intelligent range hood in this specific embodiment.

[0039] Figure descriptions: 10. Range hood light assembly; 11. UV-LED ultraviolet light excitation source; 12. Lamp beads; 13. Filter; 14. Photoelectric sensor; 15. Light distribution plate; 16. Lamp cover plate; 20. Smoke collection hood; 30. Range hood fan. Detailed Implementation

[0040] To better understand the purpose, technical solution, and advantages of this application, the application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0041] Unless otherwise defined, the technical or scientific terms used in this application shall have the general meaning understood by one of ordinary skill in the art to which this application pertains. Words such as “a,” “an,” “an,” “the,” “the,” and “these” used in this application do not indicate quantitative limitation and may be singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or modules (units) is not limited to the listed steps or modules (units) but may include steps or modules (units) not listed, or may include other steps or modules (units) inherent to these processes, methods, products, or devices. Words such as “connected,” “linked,” and “coupled” used in this application are not limited to physical or mechanical connections but may include electrical connections, whether direct or indirect. “Multiple” used in this application refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. Normally, the character " / " indicates that the objects before and after it are in an "or" relationship. The terms "first," "second," "third," etc., used in this application are merely to distinguish similar objects and do not represent a specific order of objects.

[0042] The method embodiments provided in this example can be executed on a terminal, computer, or similar computing device. For example, it can run on a terminal. Figure 1 This is a hardware structure block diagram of the terminal for the lighting control method of the intelligent range hood provided in this application embodiment. For example... Figure 1 As shown, a terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 and a memory 104 for storing data are also included. The processor 102 may be, but is not limited to, a microprocessor (MCU) or a programmable logic device (FPGA). The terminal may also include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that… Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the terminal described above. For example, the terminal may also include components that are larger than... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown are illustrated.

[0043] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to the lighting control method of the intelligent range hood in this embodiment. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0044] The transmission device 106 is used to receive or send data via a network. This network includes a wireless network provided by the terminal's communication provider. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 106 can be a Radio Frequency (RF) module used for wireless communication with the Internet.

[0045] Currently, range hoods generally use semiconductor lighting, including LED lights, for illumination. Although LED lights have a long lifespan, prolonged exposure to oil fumes and high temperatures causes light decay, as the LED chips gradually age, reducing brightness and causing the lights to dim or yellow, ultimately lowering the overall lighting intensity. Therefore, it is necessary to monitor the light decay and lifespan of the semiconductor lights in the range hood in real time during operation and make pre-adjustments and compensations to provide users with a better cooking lighting experience.

[0046] To address the issue of reduced brightness in existing smart range hoods due to the inherent light decay characteristics of semiconductor lamps, this embodiment provides a lighting control method for a smart range hood. The smart range hood includes a semiconductor lamp; the semiconductor lamp is encapsulated with quantum dots and includes an ultraviolet excitation source and multiple photoelectric sensors, each equipped with filters for different wavelength ranges. By detecting the light decay and lifespan of the range hood lamp online during operation, pre-adjustment and compensation are performed to provide a better cooking lighting experience and enhance the user's cooking experience.

[0047] Figure 2 This is an installation diagram of the lighting system of the intelligent range hood provided in an embodiment of this application. (Reference) Figure 2The intelligent range hood includes a range hood light assembly 10, a smoke collection hood 20, and a range hood fan 30. The lighting system of the intelligent range hood is located within the range hood light assembly 10 on the inner wall of the smoke collection hood 20. The range hood light assembly 10 is equipped with LED beads 12 encapsulated with CdSe / ZnS quantum dots. A lamp cover plate 16 covers the LED beads 12 to protect them and improve the light distribution of the LED lights. Simultaneously, the range hood light assembly 10 also includes a UV-LED ultraviolet light excitation source 11 as the light source excitation point, and a light distribution plate 15, as well as a photoelectric sensor 14 for receiving the light signal reflected by the light distribution plate 15 after the light source excitation. Specifically, two photoelectric sensors 14 are provided, and different filters 13 with different wavelength ranges are placed in front of the corresponding channels of different photoelectric sensors 14. For example, the wavelength range of one filter 13 is set to the wavelength range in which the corresponding lamp bead 12 does not produce attenuation, and the wavelength range of the other filter 13 is set to the wavelength range corresponding to the attenuation redshift region.

[0048] Figure 3 This is a flowchart of the lighting control method for an intelligent range hood provided in this application embodiment, such as... Figure 3 As shown, the process includes the following steps:

[0049] Step S310: Acquire multiple quantum dot electrical signals; the multiple quantum dot electrical signals are emitted as pulsed light signals from an ultraviolet excitation source to the quantum dots and received by a photoelectric sensor.

[0050] In this embodiment, quantum dots are incorporated into the encapsulating resin of the semiconductor lamp, such as CdSe / ZnS quantum dots with a particle size of 5nm or InP / ZnS quantum dots. Specifically, CdSe / ZnS quantum dots are incorporated into the epoxy resin of the lamp beads. A UV-LED ultraviolet light excitation source is used as the excitation point. A UV-LED ultraviolet excitation source (ultraviolet light-emitting diode) is a semiconductor light source that emits ultraviolet light.

[0051] By controlling the ultraviolet light excitation source to operate in a pulsed manner, pulsed light signals are sent to a semiconductor lamp in illumination mode, thereby exciting the quantum dot fluorescence effect of CdSe / ZnS quantum dots doped in the semiconductor lamp. The light signals generated by the quantum dot fluorescence effect are then received by a photoelectric sensor with multiple channels equipped with filters of different wavelength ranges.

[0052] For example, such as Figure 2 As shown, the photoelectric sensor here has two channels. In front of the optical channels of the two photoelectric sensors, there are filters with a wavelength range of 500±5nm (corresponding to the spectral peak without attenuation) and filters with a wavelength range of 540±5nm (corresponding to the spectral wavelength of the attenuated redshift region).

[0053] Preferably, the photoelectric sensor here can be a silicon photodiode array, but no specific limitation is made on the photoelectric sensor here.

[0054] Step S320: Determine the light decay value of the semiconductor lamp based on multiple quantum dot electrical signals.

[0055] The process involves acquiring multiple quantum dot signals and then determining the aging degree of the semiconductor lamp based on these signals. Specifically, the multiple quantum dot signals include a first quantum dot signal obtained through a first wavelength range filter and a second quantum dot signal obtained through a second wavelength range filter. Determining the aging degree of the semiconductor lamp based on these signals includes: calculating the ratio of the first quantum dot signal to the second quantum dot signal; determining the aging value of the semiconductor lamp based on the ratio; and using the aging value to characterize the aging degree of the semiconductor lamp.

[0056] In this step, after obtaining multiple quantum dot electrical signals through different photoelectric sensors, specifically obtaining two quantum dot electrical signals (including a first quantum dot electrical signal and a second quantum dot electrical signal) through two photoelectric sensors, the aging degree of the current semiconductor lamp is determined by calculating the ratio of the first quantum dot electrical signal and the second quantum dot electrical signal. The ratio of quantum dot electrical signals from different channels helps to eliminate the influence of light intensity fluctuations and further improves the accuracy of determining the current attenuation degree of the semiconductor lamp.

[0057] Furthermore, based on the degree of aging and a preset calibration formula, the spectral peak shift of the quantum dots is determined; the preset calibration formula is used to characterize the monotonic relationship between the degree of aging of the semiconductor lamp and the spectral peak shift of the quantum dots; based on the spectral peak shift of the quantum dots, the light decay value of the semiconductor lamp is determined.

[0058] Since the fluorescence spectrum of quantum dots is approximately Gaussian distributed, the ratio of different quantum dot electrical signals and the spectral peak value have a certain monotonic relationship. Experiments have shown that the spectral peak shift of quantum dots can be characterized by the ratio of different quantum dot electrical signals. Therefore, the spectral peak shift of the quantum dots currently used to characterize light decay can be determined by the degree of aging determined by the ratio of different quantum dot electrical signals. Then, based on the spectral peak shift and the preset experimental calibration value, the degree of decay of the current semiconductor lamp can be determined.

[0059] Preferably, the coefficients involved in the preset calibration formula are mainly based on the accelerated aging test calibration of semiconductor lamps, and no specific limitations are imposed on the coefficients here.

[0060] Step S330: Determine the compensation current of the semiconductor lamp based on the light decay value; control the smart range hood to provide lighting compensation for the semiconductor lamp based on the compensation current.

[0061] The process involves determining the light decay value of the current semiconductor lamp based on the current quantum dot electrical signal, then determining the current light attenuation rate based on this value. This attenuation rate then determines the required compensation current for the lamp, which is used to drive the lamp and improve its brightness, thus achieving lighting compensation. By adaptively compensating for the light decay value, the process avoids excessive compensation that could lead to a rapid increase in semiconductor temperature or even damage, thereby improving the accuracy of lighting compensation.

[0062] Through the above steps, quantum dots are encapsulated on the semiconductor lamps of the smart range hood. A pulsed light signal is emitted to the quantum dots through an ultraviolet excitation source. The light is then received by different photoelectric sensors through filters of different wavelength ranges to obtain the quantum dot electrical signal. Based on the quantum dot electrical signal, the influence of light intensity fluctuations is eliminated, and the light decay status of the current semiconductor lamp is determined. Then, based on the light decay status, a compensation current is determined, and the illumination of the semiconductor lamp is controlled according to the compensation current to compensate for the light decay of the semiconductor lamp in a timely manner. This avoids the light decay effect when the user uses the semiconductor lamp, which can lead to changes in color temperature and brightness, affecting the user's cooking experience.

[0063] In some embodiments, the lighting control method for the smart range hood further includes: determining multiple quantum dot electrical signals within multiple spectral ranges based on the fluorescence spectral intensity corresponding to the pulsed light signal emitted by the ultraviolet excitation source and the preset photoelectric conversion coefficient in the photoelectric sensor.

[0064] In this process, after emitting pulsed light signals to the quantum dot based on an ultraviolet excitation source, the quantum dot electrical signals acquired by the photoelectric channels of different photoelectric sensors are determined based on the photoelectric conversion coefficient k determined by the transmittance of filters in different wavelength ranges, different wavelength ranges, and fluorescence spectral intensity functions. The formulas for the quantum dot electrical signals S1 and S2 can be expressed as follows:

[0065] ;

[0066] ;

[0067] In the quantum dot electrical signal, S1 and S2 represent voltage or current signals of different channels, respectively; 495-505 represents the spectral range of the filter with a wavelength range of 500±5nm (corresponding to the spectral peak without attenuation); 535-545 represents the spectral range of the filter with a wavelength range of 540±5nm (corresponding to the spectral wavelength of the attenuated redshift region); k1 and k2 represent the photoelectric conversion coefficients including the transmittance of the filter. This represents the fluorescence spectral intensity function.

[0068] Furthermore, the fluorescence spectral intensity function typically refers to a mathematical or physical function that describes the intensity of light emitted or excited by a fluorescent substance at different wavelengths (or wavenumbers, energies). In other words, when a fluorescent substance is excited by light of a specific wavelength, it emits light at different wavelengths. The fluorescence intensity is measured below. Fluorescence intensity is affected by several factors, including but not limited to: quantum yield, molar absorptivity, concentration of the fluorescent substance in the solution, and the distance the light travels through the sample.

[0069] In some embodiments, determining the compensation current of the semiconductor lamp based on the light decay value includes: when it is determined that the light decay value of the semiconductor lamp is within a preset light decay threshold range, obtaining the target lamp bead currently in operation in the semiconductor lamp; and determining the compensation current of the target lamp bead based on the preset initial drive current and preset current compensation coefficient of the target lamp bead, as well as the light decay value.

[0070] Since semiconductor lamps generally contain multiple sets of LEDs, the brightness of these sets of LEDs can be combined to meet various lighting brightness requirements. Therefore, the light decay detection of semiconductor lamps in the above method can also be understood as the light decay detection of the LEDs in the semiconductor lamps.

[0071] After acquiring quantum dot electrical signals S1 and S2 from multiple channels (specifically two channels), the aging degree of the LED chips in the current semiconductor lamp is calculated using the ratio of S1 to S2. The formula for the aging degree R of the LED chips can be expressed as:

[0072] ;

[0073] R represents the aging degree of the LED bead, and the influence of light intensity fluctuations is eliminated by the ratio of quantum dot electrical signals S1 and S2.

[0074] Furthermore, since the fluorescence spectrum of quantum dots approximates a Gaussian distribution, and the ratio of quantum dot signals to spectral peak values ​​exhibits a certain monotonic relationship, a preset calibration formula can be used to represent the monotonic relationship between the aging degree of semiconductor lamps and the shift in the spectral peak values ​​of quantum dots. This preset calibration formula can be expressed as follows:

[0075] ;

[0076] in, R represents the spectral peak shift of the quantum dot, R represents the aging degree of the LED beads in the semiconductor lamp, and a and b represent the coefficients calibrated through a preset accelerated aging experiment. The accelerated aging experiment is an experiment that accelerates the aging process of materials or products by simulating extreme conditions.

[0077] For example, when the LED chips of a semiconductor lamp are not aged, the spectral peak of the quantum dots shifts to 510nm, and the corresponding aging degree R value of the LED chips is about 0.8. When the LED chips of a semiconductor lamp are aged to a certain extent, the spectral peak of the quantum dots shifts to 530nm, and the peak moves towards the longer wavelength red light direction, and the corresponding aging degree R value of the LED chips is about 1.2.

[0078] After determining the spectral peak shift of the quantum dots, the light decay value of the current semiconductor lamp is determined based on the spectral peak shift and the preset experimental calibration value. The formula can be expressed as:

[0079] ;

[0080] in, This represents the light attenuation rate, or light decay value, of the current semiconductor lamp. c is the experimental calibration value, which can generally be 0.35. This indicates the spectral peak shift of the quantum dot.

[0081] After determining the light decay value of the current semiconductor lamp's LED chips, it is necessary to determine the size of the light decay value relative to the preset light decay threshold range.

[0082] If the light decay value of the current semiconductor lamp's LED chips is determined to be within the preset light decay threshold range, it indicates that the LED chips in the current semiconductor lamp are not severely aged. In this case, the lighting brightness and color temperature can be compensated by adjusting the compensation current. The specific compensation current... The formula can be expressed as:

[0083] ;

[0084] in, This indicates the compensated drive current, also known as the compensation current. This indicates the compensated drive current, which is the preset initial drive current of the target LED chip. This indicates the preset current compensation coefficient for the target LED chip. This represents the light attenuation rate, or light decay value, of the current semiconductor lamp. For example, =0.6, The value can be pre-calibrated based on the selected LED beads.

[0085] In some embodiments, after determining the light decay value of the semiconductor lamp, the method further includes: determining whether the light decay value of the semiconductor lamp is within a preset light decay threshold range; if the light decay value of the semiconductor lamp does not reach the preset light decay threshold range, maintaining the current driving state of the semiconductor lamp; if the light decay value of the semiconductor lamp exceeds the preset light decay threshold range, generating a semiconductor lamp aging signal.

[0086] This embodiment also provides an intelligent range hood, including a controller and a semiconductor lamp; the controller is used to perform lighting compensation on the semiconductor lamp by employing the lighting control method of the intelligent range hood as described above.

[0087] The present embodiment will be described and explained below through specific examples.

[0088] Figure 4 This is a schematic diagram of the system architecture of the intelligent range hood provided in this specific embodiment. (Reference) Figure 4 The intelligent range hood is equipped with a main controller. The main controller generates UV light by pulse-exciting a UV-LED excitation source, which is then emitted into the resin encapsulation layer of LED beads doped with CdSe / ZnS quantum dots. An optical detector receives the fluorescence reflected by the quantum dots and converts it into a quantum dot electrical signal. This signal is then processed and sent to the main controller. The optical detector here is the photoelectric sensor described in the previous embodiment, comprising optical detector 1 and optical detector 2, with filters of different wavelength ranges positioned at the front end of their channels.

[0089] When the LED beads are attenuating, the main controller generates a corresponding lighting control strategy through quantum dot electrical signals, generates a corresponding compensation current, and controls the driver chip to perform current compensation on the LED beads.

[0090] Furthermore, the LED lights are equipped with a light diffuser and a lampshade housing. The smart range hood also features a fan, with airflow in the intake duct blowing from one side of the fan and LED lights to the other.

[0091] Figure 5 This is a flowchart of the control method for the intelligent range hood in this specific embodiment, as shown below. Figure 5 As shown, the control method of this smart range hood includes: after the user starts the smart range hood, the range hood is turned on, and the LED lights in the smart range hood are turned on to provide illumination for the user. First, it is necessary to determine whether the current usage time of the LED lights has reached the light detection cycle; if the current usage time of the LED lights has not reached the light detection cycle, then the current lighting state of the LED lights is maintained, such as maintaining the current driving current and lighting brightness.

[0092] If the current LED lamp's usage time reaches the lamp's testing cycle, then it is necessary to control the UV-LED excitation source to start the excitation pulse, turn on the UV-LED for 10ms to generate UV light, and at the same time, use a photoelectric sensor to synchronously collect quantum dot electrical signals S1 and S2, and calculate the lamp bead aging degree R value based on the ratio of S2 and S1.

[0093] Subsequently, according to the preset calibration formula This indicates the aging degree R of the semiconductor lamp and the spectral peak shift of the quantum dots. The monotonic relationship between them, and thus the spectral peak shift based on quantum dots. Calculate the light decay value of the current semiconductor lamp based on the preset experimental calibration value. .

[0094] Compare the current light decay value of the semiconductor lamp with the preset light decay threshold range. Comparison, in terms of light decay value Exceed In this case, it indicates that the LED light fixture is severely aged and needs to be replaced; at a light decay value Within the preset light decay threshold range If the light decay value is within a certain range, it indicates that the LED light fixture is aging, but the aging is not severe and can be compensated. Specifically, the compensation current driving the LED light fixture is calculated using the method described above, and the LED light fixture is driven based on the compensation current; [The text abruptly ends here, likely due to an incomplete sentence or missing information.] No more than If the LED light fixture has not yet reached the aging compensation stage, then the current state of the light fixture should be maintained until the next testing cycle.

[0095] It should be noted that the steps shown in the above process or in the flowcharts in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions.

[0096] This embodiment also provides a control device for an intelligent range hood, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. The terms "module," "unit," and "subunit," etc., used below refer to combinations of software and / or hardware that achieve a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0097] The range hood's control device includes a main controller, and connected to the main controller are a switching unit, a fan drive module, a communication module, an optional smoke baffle drive module, an optional smoke guide plate drive module, a storage module, and a lighting assembly. The lighting assembly includes a main LED light module for illumination, a UV-LED light module for detection, and two photoelectric sensors. By employing the aforementioned intelligent range hood lighting control method through the main controller, the light decay of the current LED light module is detected and compensated, thereby providing users with a smarter and superior cooking lighting experience.

[0098] It should be noted that the above modules can be functional modules or program modules, and can be implemented through software or hardware. For modules implemented through hardware, the above modules can reside in the same processor; or the above modules can be located in different processors in any combination.

[0099] This embodiment also provides an electronic device including a memory and a processor, the memory storing a computer program and the processor being configured to run the computer program to perform the steps in any of the above method embodiments.

[0100] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0101] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0102] S1, acquire multiple quantum dot electrical signals; the multiple quantum dot electrical signals are emitted by an ultraviolet excitation source to the quantum dots and received by a photoelectric sensor.

[0103] S2 determines the light decay value of the semiconductor lamp based on multiple quantum dot electrical signals.

[0104] S3 determines the compensation current for the semiconductor lamps based on the light decay value; based on the compensation current, it controls the smart range hood to provide lighting compensation for the semiconductor lamps.

[0105] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated in this embodiment.

[0106] Furthermore, in conjunction with the lighting control method for the intelligent range hood provided in the above embodiments, this embodiment can also provide a storage medium for implementation. This storage medium stores a computer program; when executed by a processor, the computer program implements any of the lighting control methods for the intelligent range hood described in the above embodiments.

[0107] It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. All other embodiments derived by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0108] Obviously, the accompanying drawings are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar situations based on these drawings without any creative effort. Furthermore, it is understood that although the work done in this development process may be complex and lengthy, for those skilled in the art, certain design, manufacturing, or production modifications made based on the technical content disclosed in this application are merely conventional technical means and should not be considered as insufficient disclosure of this application.

[0109] The term "embodiment" in this application refers to a specific feature, structure, or characteristic described in connection with an embodiment that may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily imply the same embodiment, nor does it imply that it is mutually exclusive with or independent of other embodiments. It will be clearly or implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0110] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of patent protection. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A lighting control method for an intelligent range hood, characterized in that, The intelligent range hood includes semiconductor lighting fixtures; The semiconductor lamp is encapsulated with quantum dots, and includes an ultraviolet excitation source and multiple photoelectric sensors, each equipped with filters for different wavelength ranges; the method includes: Multiple quantum dot electrical signals are acquired; the multiple quantum dot electrical signals are emitted from the ultraviolet excitation source to the quantum dots and received by the photoelectric sensor; The light decay value of the semiconductor lamp is determined based on the multiple quantum dot electrical signals. Based on the light decay value, the compensation current of the semiconductor lamp is determined; based on the compensation current, the intelligent range hood is controlled to provide lighting compensation for the semiconductor lamp.

2. The lighting control method for an intelligent range hood according to claim 1, characterized in that, Determining the light decay value of the semiconductor lamp based on the quantum dot electrical signal includes: The degree of aging of the semiconductor lamp is determined based on the multiple quantum dot electrical signals. Based on the aging degree and a preset calibration formula, the spectral peak shift of the quantum dot is determined; the preset calibration formula is used to characterize the monotonic relationship between the aging degree of the semiconductor lamp and the spectral peak shift of the quantum dot. The light decay value of the semiconductor lamp is determined based on the spectral peak shift of the quantum dot.

3. The lighting control method for an intelligent range hood according to claim 2, characterized in that, The plurality of quantum dot electrical signals include a first quantum dot electrical signal obtained after passing through a first wavelength range filter, and a second quantum dot electrical signal obtained after passing through a second wavelength range filter; The determination of the aging degree of the semiconductor lamp based on the plurality of quantum dot electrical signals includes: Calculate the ratio of the first quantum dot electrical signal to the second quantum dot electrical signal; Based on the ratio, the aging value of the semiconductor lamp is determined; the aging value is used to characterize the degree of aging of the semiconductor lamp.

4. The lighting control method for an intelligent range hood according to claim 1, characterized in that, The method further includes: Based on the fluorescence spectral intensity corresponding to the pulsed light signal emitted by the ultraviolet excitation source and the preset photoelectric conversion coefficient in the photoelectric sensor, the multiple quantum dot electrical signals are determined in multiple spectral ranges.

5. The lighting control method for an intelligent range hood according to any one of claims 1 to 4, characterized in that, After determining the light decay value of the semiconductor lamp, the method further includes: Determine whether the light decay value of the semiconductor lamp is within a preset light decay threshold range; If it is determined that the light decay value of the semiconductor lamp has not reached the preset light decay threshold range, the current driving state of the semiconductor lamp shall be maintained.

6. The lighting control method for an intelligent range hood according to claim 5, characterized in that, After determining the light decay value of the semiconductor lamp, the method further includes: If the light decay value of the semiconductor lamp exceeds the preset light decay threshold range, an aging signal for the semiconductor lamp is generated.

7. The lighting control method for an intelligent range hood according to claim 5, characterized in that, Determining the compensation current of the semiconductor lamp based on the light attenuation value includes: If it is determined that the light decay value of the semiconductor lamp is within the preset light decay threshold range, the target lamp bead currently in working state in the semiconductor lamp is obtained; The compensation current of the target LED is determined based on the preset initial driving current and preset current compensation coefficient of the target LED, as well as the light attenuation value.

8. A smart range hood, characterized in that, It includes a controller and a semiconductor lamp; the controller is used to perform lighting compensation on the semiconductor lamp using the lighting control method of the intelligent range hood as described in any one of claims 1 to 7.

9. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to run the computer program to perform the lighting control method for the intelligent range hood according to any one of claims 1 to 7.

10. 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 steps of the lighting control method for the intelligent range hood according to any one of claims 1 to 7.

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