CN115720394A - Illumination control system and method for range hood - Google Patents
Illumination control system and method for range hood Download PDFInfo
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- CN115720394A CN115720394A CN202211449681.0A CN202211449681A CN115720394A CN 115720394 A CN115720394 A CN 115720394A CN 202211449681 A CN202211449681 A CN 202211449681A CN 115720394 A CN115720394 A CN 115720394A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention provides a range hood illumination control system and a method, which relate to the technical field of kitchen appliances, wherein the range hood illumination control system comprises a sensor unit, a central processing unit, an illumination driver and an illuminating lamp, the sensor unit in the range hood illumination control system can sense a target electric signal of the surrounding environment, and the target electric signal at least comprises the following components: light intensity signal, central processing unit exports target PWM signal to lighting driver according to the target electricity signal, and then lighting driver output is used for driving the target drive signal of light to adjust the luminous parameter of light, luminous parameter includes at least: brightness. The system provided by the invention can automatically adjust the lighting parameters of the lighting lamp according to the surrounding environment of the range hood, does not need to be manually turned on/off/adjusted by a user, and effectively improves the use experience of the user.
Description
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to a system and a method for controlling illumination of a range hood.
Background
The light that smoke ventilator used in the existing market, all be fixed luminance basically, the user can not adjust, and can only open and close through button control light, and the lighting lamp light of same kind luminance must not satisfy the user demand of different kitchen environment, can not satisfy all users' illumination requirement, leads to user experience not good.
Disclosure of Invention
The invention aims to provide a lighting control system and method for a range hood, which are used for automatically adjusting the lighting parameters of a lighting lamp of the range hood according to the surrounding environment of the range hood without manual turning on/off/adjustment of a user, so that the use experience of the user is effectively improved.
In a first aspect, the present invention provides a range hood lighting control system comprising: the device comprises a sensor unit, a central processing unit, an illumination driver and an illumination lamp; the sensor unit is used for sensing a target electric signal of the surrounding environment and sending the target electric signal to the central processor; wherein the target electrical signal comprises at least: a light intensity signal; the central processing is used for determining a target PWM signal based on the target electric signal and sending the target PWM signal to the lighting driver; the lighting driver is used for determining a target driving signal based on the target PWM signal so as to adjust the lighting parameters of the lighting lamp based on the target driving signal; wherein the lighting parameters comprise at least: brightness.
In an alternative embodiment, the sensor unit comprises: an ambient light sensor; the lighting driver includes: a first driver; the illumination lamp includes: a monochromatic lighting lamp; the environment light sensor is used for sensing a light intensity signal of the surrounding environment and sending the light intensity signal to the central processing unit; the central processing unit is used for determining a first PWM signal based on the light intensity signal and sending the first PWM signal to the first driver; the first driver is used for determining a first driving signal based on the first PWM signal so as to adjust the light-emitting time length of the monochromatic lighting lamp in a unit PWM period based on the first driving signal; wherein the longer the light emitting time, the higher the brightness of the illumination lamp.
In an alternative embodiment, the sensor unit comprises: an ambient light sensor; the illumination driver includes: a second driver and a third driver; the illumination lamp includes: cold light lamps and warm light lamps; the first output end of the central processing unit is connected with the input end of the second driver, and the output end of the second driver is connected with the driving end of the cold light lamp; the second output end of the central processing unit is connected with the input end of the third driver, and the output end of the third driver is connected with the driving end of the warm light lamp; the environment light sensor is used for sensing a light intensity signal of the surrounding environment and sending the light intensity signal to the central processing unit; the central processor is used for determining a second PWM signal and a third PWM signal based on the light intensity signal, sending the second PWM signal to the second driver and sending the third PWM signal to the third driver; the second driver is used for determining a second driving signal based on the second PWM signal so as to adjust the light-emitting duration of the cold light lamp in a unit PWM period based on the second driving signal; the third driver is used for determining a third driving signal based on the third PWM signal so as to adjust the light-emitting duration of the warm light lamp in a unit PWM period based on the third driving signal; the longer the total light emitting duration of the cold light lamp and the warm light lamp in a unit PWM period is, the higher the brightness of the illuminating lamp is.
In an optional embodiment, the illumination lamp includes a target number of light emission levels, and a ratio of a light emission time of the cold light lamp to a light emission time of the warm light lamp in a unit PWM period is a preset value in each of the light emission levels.
In an alternative embodiment, the sensor unit further comprises: a temperature sensor; the temperature sensor is used for sensing a temperature signal of the ambient environment and sending the temperature signal to the central processing unit; the central processor is used for determining a fourth PWM signal and a fifth PWM signal based on the light intensity signal and the temperature signal; and sending the fourth PWM signal to the second driver and the fifth PWM signal to the third driver; the second driver is used for determining a fourth driving signal based on the fourth PWM signal so as to adjust the light-emitting time length of the cold light lamp in a unit PWM period based on the fourth driving signal; the third driver is used for determining a fifth driving signal based on the fifth PWM signal so as to adjust the light-emitting duration of the warm light lamp in a unit PWM period based on the fifth driving signal; the temperature represented by the temperature signal is in direct proportion to a target ratio, and the target ratio represents the ratio of the luminous duration of the cold light lamp in a unit PWM period to the luminous duration of the warm light lamp in the unit PWM period.
In an alternative embodiment, the light intensity represented by the light intensity signal is inversely proportional to the illumination time of the illumination lamp in a unit PWM period.
In an alternative embodiment, the lighting driver comprises one of: the circuit comprises a triode transistor control loop, a field effect transistor control loop, a silicon controlled rectifier control loop, a digital analog switch loop and a load switch control loop.
In a second aspect, the present invention provides a range hood lighting control method applied to the range hood lighting control system according to any one of the foregoing embodiments, including: sensing a target electrical signal of a surrounding environment; wherein the target electrical signal comprises at least: a light intensity signal; determining a target PWM signal based on the target electrical signal; determining a target driving signal based on the target PWM signal to adjust a lighting parameter of a lighting lamp based on the target driving signal; wherein the lighting parameters comprise at least: brightness.
In a third aspect, the present invention provides an electronic device, which includes a memory and a processor, where the memory stores a computer program operable on the processor, and the processor executes the computer program to implement the steps of the range hood illumination control method according to the foregoing embodiment.
In a fourth aspect, the present invention provides a computer-readable storage medium storing computer instructions which, when executed by a processor, implement the range hood lighting control method of the foregoing embodiments.
The sensor unit in the lighting control system of the range hood provided by the invention can sense a target electric signal of the surrounding environment, and the target electric signal at least comprises the following components: light intensity signal, central processing unit exports target PWM signal to lighting driver according to the target electricity signal, and then lighting driver output is used for driving the target drive signal of light to adjust the luminous parameter of light, luminous parameter includes at least: brightness. The system provided by the invention can automatically adjust the lighting parameters of the lighting lamp according to the surrounding environment of the range hood, does not need to be manually turned on/off/adjusted by a user, and effectively improves the use experience of the user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a functional block diagram of a lighting control system of a range hood according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of an alternative range hood lighting control system provided by an embodiment of the present invention;
FIG. 3 is a functional block diagram of another alternative range hood lighting control system provided by an embodiment of the present invention;
fig. 4 is a functional block diagram of a range hood lighting control system with a temperature sensor according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for controlling lighting of a range hood according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Example one
Fig. 1 is a functional block diagram of a lighting control system of a range hood according to an embodiment of the present invention, as shown in fig. 1, the system includes: sensor unit, central processing unit, illumination driver and light.
The sensor unit is used for sensing a target electric signal of the surrounding environment and sending the target electric signal to the central processing unit; wherein the target electrical signal comprises at least: a light intensity signal.
The central processing is configured to determine a target PWM signal based on the target electrical signal and to send the target PWM signal to the lighting driver.
The lighting driver is used for determining a target driving signal based on the target PWM signal so as to adjust the lighting parameters of the lighting lamp based on the target driving signal; wherein the light emission parameters at least include: brightness.
As can be known from the above description of the system structure of the embodiment of the present invention, in order to implement automatic control of the illumination of the range hood, a sensor unit, a central processing unit, an illumination driver, and an illumination lamp are required to be disposed in the range hood illumination control system, where the sensor unit is at least capable of sensing the light intensity of the surrounding environment, that is, a target electrical signal sent by the sensor unit to the central processing unit at least includes a light intensity signal, and after receiving the target electrical signal, the central processing unit at least determines the brightness of the surrounding environment of the range hood, and further determines a target PWM signal in combination with a preset illumination adjustment mechanism for the illumination of the illumination lamp.
The embodiment of the invention does not specifically limit the lighting adjusting mechanism of the lighting lamp, and a user can set the lighting adjusting mechanism according to actual conditions as long as the lighting of the range hood can be automatically switched on and switched off and automatically adjusted.
The sensor unit in the lighting control system of the range hood provided by the invention can sense a target electric signal of the surrounding environment, and the target electric signal at least comprises the following components: light intensity signal, central processing unit exports target PWM signal to lighting driver according to the target electricity signal, and then lighting driver output is used for driving the target drive signal of light to adjust the luminous parameter of light, luminous parameter includes at least: brightness. The system provided by the invention can automatically adjust the lighting parameters of the lighting lamp according to the surrounding environment of the range hood, does not need to be manually turned on/off/adjusted by a user, and effectively improves the use experience of the user.
In an alternative embodiment, as shown in fig. 2, the sensor unit comprises: an ambient light sensor; the lighting driver includes: a first driver; the light includes: a monochromatic lighting lamp.
The ambient light sensor is used for sensing light intensity signals of the surrounding environment and sending the light intensity signals to the central processing unit.
The central processing unit is used for determining a first PWM signal based on the light intensity signal and sending the first PWM signal to the first driver.
The first driver is used for determining a first driving signal based on the first PWM signal so as to adjust the light-emitting time length of the monochromatic lighting lamp in the unit PWM period based on the first driving signal; wherein, the longer the luminous duration, the higher the brightness of the illuminating lamp.
If the sensor unit in the range hood lighting control system only sets up ambient light sensor, and only sets up the monochromatic light, then only need set up first driver with drive monochromatic light can. Wherein, the ambient light sensor mainly comprises a photosensitive element. Photosensitive elements such as: photoresistors, photodiodes, phototransistors, silicon photocells, and the like.
Specifically, set up under the condition of monochromatic light lamp on smoke ventilator, ambient light sensor is used for sensing light intensity signal to send it to central processing unit, central processing unit is after receiving light intensity signal, can determine a PWM signal according to the light intensity that light intensity signal represents. And after receiving the first PWM signal, the first driver processes the first PWM signal to obtain a first driving signal, and then adjusts the light-emitting duration of the monochromatic lighting lamp in a unit PWM period by using the first driving signal.
Generally, the larger the duty ratio of the positive pulse in the unit PWM period, the longer the light emission period of the illumination lamp, and the stronger the light emission luminance. In the embodiment of the invention, the light intensity represented by the light intensity signal is inversely proportional to the light emitting time of the illuminating lamp in the unit PWM period. That is, the greater the light intensity of the environment (i.e., the stronger the ambient light) the shorter the lighting time period of the illumination lamp within a unit PWM period (i.e., the darker the illumination lamp); conversely, the smaller the light intensity of the environment (i.e., the weaker the ambient light), the longer the illumination time of the illumination lamp within a unit PWM period (i.e., the brighter the illumination lamp).
The user can set a light intensity threshold value according to actual requirements, and the illuminating lamp is automatically turned off under the condition that the light intensity is greater than the target threshold value; and under the condition that the light intensity is not greater than the target threshold value, the illuminating lamp is automatically turned on, and the light emitting level of the illuminating lamp is adjusted according to the light intensity. That is, the lighting lamp lighting adjusting mechanism provided by the embodiment of the invention can realize intelligent adjustment of the lighting lamp switch and the brightness, thereby improving the user experience.
In an alternative embodiment, as shown in fig. 3, the sensor unit comprises: an ambient light sensor; the lighting driver includes: a second driver and a third driver; the light includes: cold light lamps and warm light lamps.
The first output end of the central processing unit is connected with the input end of a second driver, and the output end of the second driver is connected with the drive end of the cold light lamp; the second output end of the central processing unit is connected with the input end of a third driver, and the output end of the third driver is connected with the driving end of the warm light lamp.
The ambient light sensor is used for sensing light intensity signals of the surrounding environment and sending the light intensity signals to the central processing unit.
The central processing unit is used for determining a second PWM signal and a third PWM signal based on the light intensity signal, sending the second PWM signal to the second driver and sending the third PWM signal to the third driver.
The second driver is used for determining a second driving signal based on the second PWM signal so as to adjust the light-emitting time length of the cold light lamp in the unit PWM period based on the second driving signal.
The third driver is used for determining a third driving signal based on the third PWM signal so as to adjust the light-emitting time length of the warm-light lamp in the unit PWM period based on the third driving signal.
The longer the total luminous time of the cold light lamp and the warm light lamp in a unit PWM period is, the higher the brightness of the illuminating lamp is.
If the sensor unit in the range hood lighting control system only sets up the ambient light sensor, sets up two light of cold light lamp and warm light lamp simultaneously, so corresponding needs set up two lighting drivers: a second driver and a third driver to drive the cold light lamp and the warm light lamp, respectively. Specifically, according to the product structure relationship, the second driver is used for driving the cold light lamp, the third driver is used for driving the warm light lamp, and then the color temperature of the illuminating lamp can be adjusted by adjusting the ratio of the cold light to the warm light in the unit PWM period.
The working principle of the ambient light sensor is the same as that of the monochromatic illuminating lamp, but is different from the control mode of the monochromatic illuminating lamp, and the central processing unit in this embodiment needs to determine the second PWM signal and the third PWM signal based on the light intensity signal, so as to drive the cold light lamp and the warm light lamp through the corresponding drivers, respectively. By adjusting the light emitting duration of the cold light lamp and the warm light lamp in the unit PWM period, the purpose of adjusting the ratio of the cold light to the warm light can be realized, and the adjustment of the color temperature of the illuminating lamp is further completed.
For ease of understanding, the control of the brightness and color temperature of the illumination lamp is illustrated below:
firstly, dividing a unit PWM cycle into multiple equal parts, wherein each equal part is used as a scale of brightness, for example, 10 equal parts are divided, and if the 10 equal parts are lightened, the brightness of the illuminating lamp is strongest; if 1 scale is lighted, the brightness of the illuminating lamp is weakest.
And secondly, setting the proportion of the cold and warm light in each brightness scale to realize color temperature control. Wherein, the total cold brightness is as follows: the cold light proportion is 100%, the warm light is 0%, and the full warm brightness is as follows: the cold light is 0% and the warm light is 100%, that is, by distributing different proportions to the cold and warm light, different color temperatures can be presented to the illumination lamp.
The principle of brightness adjustment of a monochromatic lighting lamp is the same, for a lighting lamp (including a cold light lamp and a warm light lamp) with color temperature adjustment, the light intensity represented by the light intensity signal is in inverse proportion to the light emitting duration of the lighting lamp in a unit PWM period, and the light emitting duration at the time is the total light emitting duration of the cold light lamp and the warm light lamp in the unit PWM period.
In an alternative embodiment, as shown in fig. 4, the illumination lamp includes a target number of illumination levels, and the ratio of the illumination duration of the cold light lamp to the illumination duration of the warm light lamp per unit PWM period is a preset value at each illumination level. That is to say, the user can set the proportion of the lighting time length of the cool and warm light in each lighting grade according to the actual requirement, and then different color temperatures are presented under different brightness. Taking the unit PWM period as 100ms as an example, the first-level brightness can be that the cold light emits light for 1ms, and the warm light emits light for 9ms; the second grade brightness can be that the cold light emits light for 3ms, and the warm light emits light for 20ms; by analogy, the 10 th brightness can be that the cold light emits light for 30ms and the warm light emits light for 50ms.
Although the color temperature adjustable control system provided in the foregoing can adjust the color temperature of the illumination lamp while realizing brightness adjustment of the illumination lamp, the color temperature at each lighting level is preset by the central processing unit, and cannot be adaptively adjusted according to the surrounding environment. In order to further promote the use experience of light, the colour temperature of control light changes according to ambient temperature: the lower the ambient temperature is, the warmer the luminous color temperature is; the higher the ambient temperature, the colder the luminescent color temperature. If when the lamp is used in winter, the ambient temperature is low, and the color temperature of the illuminating lamp is warm, so that the user can feel warm and comfortable. In view of this, in an alternative embodiment, the sensor unit further comprises: a temperature sensor.
The temperature sensor is used for sensing a temperature signal of the surrounding environment and sending the temperature signal to the central processing unit.
The central processing unit is used for determining a fourth PWM signal and a fifth PWM signal based on the light intensity signal and the temperature signal; and transmits the fourth PWM signal to the second driver and the fifth PWM signal to the third driver.
The second driver is used for determining a fourth driving signal based on the fourth PWM signal so as to adjust the light-emitting time length of the cold light lamp in the unit PWM period based on the fourth driving signal.
The third driver is used for determining a fifth driving signal based on the fifth PWM signal so as to adjust the light-emitting time length of the warm light lamp in the unit PWM period based on the fifth driving signal.
The longer the total light emitting duration of the cold light lamp and the warm light lamp in a unit PWM period is, the higher the brightness of the illuminating lamp is; the temperature represented by the temperature signal is in direct proportion to a target ratio, and the target ratio represents the ratio of the luminous duration of the cold light lamp in a unit PWM period to the luminous duration of the warm light lamp in the unit PWM period.
As can be seen from the above description, in this embodiment, the sensor unit in the range hood lighting control system not only sets the ambient light sensor, but also adds the temperature sensor, and as in the previous embodiment, two lighting lamps, namely a cold light lamp and a warm light lamp, and two lighting drivers are also set: a second driver and a third driver.
The working principle of the ambient light sensor is the same as that of the above monochromatic illuminating lamp, and is not described herein again. Under the condition that the central processing unit receives the light intensity signal output by the ambient light sensor and the temperature signal output by the temperature sensor, a fourth PWM signal and a fifth PWM signal can be determined according to the light intensity and the temperature of the current environment and a preset light intensity-temperature regulating mechanism, and the fourth PWM signal and the fifth PWM signal have the same effect as the previous embodiment and are used for driving the cold light lamp and the warm light lamp through corresponding drivers. However, in the present embodiment, the duty ratio of the positive pulse in the unit PWM period in the fourth PWM signal and the fifth PWM signal is not set according to the intensity of the light in the environment, but is adaptively adjusted by the cpu according to the ambient temperature. Under the condition that the duty ratios of the fourth PWM signal and the fifth PWM signal are determined, the proportion of the luminous time length of cold light to the luminous time length of warm light can be determined, and further the color temperature of the illuminating lamp is determined. That is, the color temperature of the illumination lamp at this time is varied according to the ambient temperature.
In the embodiment of the invention, the temperature represented by the temperature signal is in direct proportion to the target ratio, and the target ratio represents the ratio of the luminous time of the cold light lamp in a unit PWM period to the luminous time of the warm light lamp in the unit PWM period, so that the lower the ambient temperature is, the warmer the luminous color temperature is; the higher the ambient temperature is, the more cold the color temperature of the emitted light is.
Similarly, the light intensity represented by the light intensity signal is inversely proportional to the illumination duration of the lamp in a unit PWM period. The light-emitting duration in this embodiment is the total light-emitting duration of the cold light lamp and the warm light lamp in a unit PWM period. That is, the stronger the ambient light, the shorter the lighting time of the lighting lamp, and the darker the lighting lamp; the weaker the ambient light, the longer the lighting time of the lighting lamp, and the brighter the lighting lamp.
In an alternative embodiment, the illumination lamp includes: LED light, lighting driver includes one of following: the circuit comprises a triode transistor control loop, a field effect transistor control loop, a silicon controlled rectifier control loop, a digital analog switch loop and a load switch control loop. The circuits are all lighting lamp driving circuits commonly used in the field, and the structure of each circuit is not described again here.
In summary, the range hood lighting control system provided by the embodiment of the invention adopts the ambient light sensor to detect the intensity of ambient light, or further combines the temperature sensor to detect the ambient temperature, and the central processing unit can control the light intensity of the single-color lighting lamp through the single-path PWM duty ratio or control different color temperatures and light emitting levels of the cold-warm two-color lighting lamp through the two-path PWM duty ratio according to different sensor settings of the sensor unit, so as to realize full-automatic intelligent dimming and save manual adjustment of a user.
Because light intensity and colour temperature are different under different light environment, so can effectively reduce the use consumption of light, reach energy-conserving purpose, and because the light moves in full-automatic intelligent control, so be not full power in the operational aspect of the overwhelming majority and light, thereby can prolong the life of light. In addition, under the condition of using the temperature sensor, the illuminating lamp can also achieve the effects of rendering the environment to be beautiful, enhancing the visual sense of the user and improving the user experience.
Example two
The embodiment of the invention also provides a range hood illumination control method which is mainly applied to the range hood illumination control system provided by the first embodiment, and the range hood illumination control method provided by the embodiment of the invention is specifically introduced below.
Fig. 5 is a flowchart of a method for controlling lighting of a range hood according to an embodiment of the present invention, and as shown in fig. 5, the apparatus mainly includes the following steps:
step S102, sensing a target electric signal of the surrounding environment.
Wherein the target electrical signal comprises at least: a light intensity signal.
Step S104, determining a target PWM signal based on the target electric signal.
And S106, determining a target driving signal based on the target PWM signal so as to adjust the light-emitting parameters of the illuminating lamp based on the target driving signal.
Wherein the lighting parameters comprise at least: and (4) brightness.
The invention provides a lighting control method of a range hood, which can sense a target electric signal of a surrounding environment, wherein the target electric signal at least comprises the following steps: the light intensity signal, according to the target electric signal output target PWM signal, and then confirm the target drive signal who is used for driving the light according to target PWM signal to adjust the luminous parameter of light, luminous parameter includes at least: and (4) brightness. The method provided by the invention can automatically adjust the lighting parameters of the lighting lamp according to the surrounding environment of the range hood, does not need manual opening/closing/adjustment of a user, and effectively improves the use experience of the user.
EXAMPLE III
Referring to fig. 6, an embodiment of the present invention provides an electronic device, including: a processor 60, a memory 61, a bus 62 and a communication interface 63, wherein the processor 60, the communication interface 63 and the memory 61 are connected through the bus 62; the processor 60 is arranged to execute executable modules, such as computer programs, stored in the memory 61.
The Memory 61 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 63 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
The bus 62 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 6, but that does not indicate only one bus or one type of bus.
The memory 61 is used for storing a program, the processor 60 executes the program after receiving an execution instruction, and the method executed by the apparatus defined by the process disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 60, or implemented by the processor 60.
The processor 60 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware integrated logic circuits or software in the processor 60. The Processor 60 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory 61, and the processor 60 reads the information in the memory 61 and, in combination with its hardware, performs the steps of the above method.
The computer program product of the system and the method for controlling the illumination of the range hood provided by the embodiment of the invention comprises a computer readable storage medium storing nonvolatile program codes executable by a processor, wherein instructions included in the program codes can be used for executing the method in the foregoing method embodiment, and specific implementation can refer to the method embodiment, which is not described herein again.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A range hood lighting control system, comprising: the device comprises a sensor unit, a central processing unit, an illumination driver and an illumination lamp;
the sensor unit is used for sensing a target electric signal of the surrounding environment and sending the target electric signal to the central processor; wherein the target electrical signal comprises at least: a light intensity signal;
the central processing is used for determining a target PWM signal based on the target electric signal and sending the target PWM signal to the lighting driver;
the lighting driver is used for determining a target driving signal based on the target PWM signal so as to adjust the lighting parameters of the lighting lamp based on the target driving signal; wherein the lighting parameters comprise at least: brightness.
2. The range hood lighting control system of claim 1, wherein the sensor unit comprises: an ambient light sensor; the lighting driver includes: a first driver; the illumination lamp includes: a monochromatic lighting lamp;
the environment light sensor is used for sensing a light intensity signal of the surrounding environment and sending the light intensity signal to the central processing unit;
the central processing unit is used for determining a first PWM signal based on the light intensity signal and sending the first PWM signal to the first driver;
the first driver is used for determining a first driving signal based on the first PWM signal so as to adjust the light-emitting time length of the monochromatic lighting lamp in a unit PWM period based on the first driving signal; wherein the longer the light emitting time, the higher the brightness of the illumination lamp.
3. The range hood lighting control system of claim 1, wherein the sensor unit comprises: an ambient light sensor; the lighting driver includes: a second driver and a third driver; the illumination lamp includes: cold light lamps and warm light lamps;
the first output end of the central processing unit is connected with the input end of the second driver, and the output end of the second driver is connected with the driving end of the cold light lamp; the second output end of the central processing unit is connected with the input end of the third driver, and the output end of the third driver is connected with the driving end of the warm light lamp;
the environment light sensor is used for sensing a light intensity signal of the surrounding environment and sending the light intensity signal to the central processing unit;
the central processor is used for determining a second PWM signal and a third PWM signal based on the light intensity signal, sending the second PWM signal to the second driver and sending the third PWM signal to the third driver;
the second driver is used for determining a second driving signal based on the second PWM signal so as to adjust the light-emitting duration of the cold light lamp in a unit PWM period based on the second driving signal;
the third driver is used for determining a third driving signal based on the third PWM signal so as to adjust the light-emitting duration of the warm light lamp in a unit PWM period based on the third driving signal;
wherein the longer the total light emitting time of the cold light lamp and the warm light lamp in a unit PWM cycle is, the higher the brightness of the illumination lamp is.
4. The range hood lighting control system of claim 3, wherein the illumination lamp comprises a target number of illumination levels, and a ratio of an illumination duration of the cold light lamp to an illumination duration of the warm light lamp per PWM period is a preset value for each of the illumination levels.
5. The range hood lighting control system of claim 3, wherein the sensor unit further comprises: a temperature sensor;
the temperature sensor is used for sensing a temperature signal of the ambient environment and sending the temperature signal to the central processing unit;
the central processor is used for determining a fourth PWM signal and a fifth PWM signal based on the light intensity signal and the temperature signal; and sending the fourth PWM signal to the second driver and the fifth PWM signal to the third driver;
the second driver is used for determining a fourth driving signal based on the fourth PWM signal so as to adjust the light-emitting duration of the cold light lamp in a unit PWM period based on the fourth driving signal;
the third driver is used for determining a fifth driving signal based on the fifth PWM signal so as to adjust the light-emitting duration of the warm light lamp in a unit PWM period based on the fifth driving signal;
the temperature represented by the temperature signal is in direct proportion to a target ratio, and the target ratio represents the ratio of the luminous duration of the cold light lamp in a unit PWM period to the luminous duration of the warm light lamp in the unit PWM period.
6. The range hood lighting control system of any one of claims 2-5, wherein the light intensity represented by the light intensity signal is inversely proportional to the length of time the light is illuminated per PWM period.
7. The range hood lighting control system of claim 1, wherein the lighting driver comprises one of: the circuit comprises a triode transistor control loop, a field effect transistor control loop, a silicon controlled rectifier control loop, a digital analog switch loop and a load switch control loop.
8. A range hood lighting control method applied to the range hood lighting control system of any one of claims 1 to 7, comprising:
sensing a target electrical signal of a surrounding environment; wherein the target electrical signal comprises at least: a light intensity signal;
determining a target PWM signal based on the target electrical signal;
determining a target driving signal based on the target PWM signal to adjust a lighting parameter of a lighting lamp based on the target driving signal; wherein the lighting parameters comprise at least: brightness.
9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor implements the steps of the range hood lighting control method of claim 8 when executing the computer program.
10. A computer readable storage medium, wherein the computer readable storage medium stores computer instructions, which when executed by a processor, implement the range hood lighting control method of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211449681.0A CN115720394A (en) | 2022-11-18 | 2022-11-18 | Illumination control system and method for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211449681.0A CN115720394A (en) | 2022-11-18 | 2022-11-18 | Illumination control system and method for range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115720394A true CN115720394A (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211449681.0A Pending CN115720394A (en) | 2022-11-18 | 2022-11-18 | Illumination control system and method for range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115720394A (en) |
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2022
- 2022-11-18 CN CN202211449681.0A patent/CN115720394A/en active Pending
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