CN117628553A - Range hood and illumination control method thereof - Google Patents
Range hood and illumination control method thereof Download PDFInfo
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- CN117628553A CN117628553A CN202210993173.2A CN202210993173A CN117628553A CN 117628553 A CN117628553 A CN 117628553A CN 202210993173 A CN202210993173 A CN 202210993173A CN 117628553 A CN117628553 A CN 117628553A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000004907 flux Effects 0.000 claims abstract description 152
- 230000001105 regulatory effect Effects 0.000 description 15
- 230000008859 change Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 7
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- 239000000779 smoke Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses a range hood and an illumination control method thereof, wherein the illumination control method comprises the following steps of S1, obtaining luminous flux X0 of an environment after an illumination lamp is started, and correspondingly adjusting the brightness of the illumination lamp; s2, acquiring luminous flux X1 of the environment after the brightness of the illuminating lamp is adjusted, correspondingly adjusting the brightness of the illuminating lamp, judging whether at least X1 is smaller than X0, and if yes, executing a step S3; s3, acquiring luminous flux X2 of the environment after the brightness of the illuminating lamp is adjusted, at least judging whether the absolute value of the difference between X2 and X0 is smaller than or equal to a preset value Xa, if yes, judging that the illuminating lamp is subjected to the phenomenon of light flashing, and controlling the illuminating lamp to keep the preset brightness for a preset time t1, wherein 0 is smaller than Xa. When the lighting lamp is judged to generate the flashing phenomenon, the lighting lamp is controlled to keep preset time t1 with preset brightness, the brightness of the lighting lamp is not repeatedly and circularly adjusted, the flashing phenomenon is prevented from continuously occurring, and the use experience of a user is improved.
Description
Technical Field
The invention belongs to the field of range hoods, and particularly relates to a range hood and an illumination control method thereof.
Background
In the prior art, when a user cooks back to kitchen light, the environment near the range hood and the kitchen range is darker. The illuminating lamp is arranged on the range hood, so that the illumination brightness near the kitchen range can be improved, and the operation of a user is convenient. However, when a user cooks to generate larger oil smoke, the oil smoke can block a part of light rays of the illuminating lamp of the range hood, so that the brightness near a kitchen range below the range hood is reduced, the user cannot see the situation near the kitchen range or in a pot clearly, and the cooking of the user is hindered.
The automatic dimming lamp of the range hood detects the intensity of ambient light through the photosensitive sensor, and then adjusts the brightness of the illuminating lamp according to the detected light intensity, so that a proper and constant illumination environment is created for a user, and the user can see the condition near the range clearly.
However, due to the small kitchen environment, the light emitted by the illuminating lamp can be scattered and diffracted, and part of the light emitted by the illuminating lamp can be received by the photosensitive sensor, and the light emitted by the illuminating lamp is detected by the photosensitive sensor. When the ambient brightness is detected to be low and the illumination lamp is turned on according to the ambient brightness, namely, the light detected by the light sensor is increased, the brightness of the illumination lamp is controlled to be low, and the aim of turning on the illumination lamp cannot be fulfilled; when the illuminating lamp is darkened, namely the light detected by the photosensitive sensor is reduced, the illuminating lamp is lightened again; the automatic adjustment is repeated in a circulating way, so that the illumination lamp is in a bright and dark state, and frequent light flickering is easy to occur in the process of automatically adjusting the brightness of the illumination lamp.
The present invention has been made in view of this.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a lighting control method of a range hood, which is used for adjusting the brightness of an illuminating lamp and keeping for a certain time when the possible flickering phenomenon of the illuminating lamp is obtained, so that the automatic adjustment of the brightness of the illuminating lamp is prevented from being triggered by mistake under the condition that the ambient brightness is unchanged and the flickering phenomenon is prevented from being generated by repeated and cyclic adjustment of the brightness of the illuminating lamp.
Another object of the present invention is to provide a range hood.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: the lighting control method of the range hood is provided, the range hood is provided with a lighting lamp with adjustable brightness and a photosensitive sensor for detecting the ambient brightness and outputting an electric signal, the control method comprises the following steps,
s1, acquiring luminous flux X0 of the environment after the lighting lamp is started, and correspondingly adjusting the brightness of the lighting lamp;
s2, acquiring luminous flux X1 of the environment after the brightness of the illuminating lamp is adjusted, correspondingly adjusting the brightness of the illuminating lamp, judging whether at least X1 is smaller than X0, and if yes, executing a step S3;
s3, acquiring luminous flux X2 of the environment after the brightness of the illuminating lamp is adjusted, at least judging whether the absolute value of the difference between X2 and X0 is smaller than or equal to a preset value Xa, if yes, judging that the illuminating lamp has a flashing phenomenon, and controlling the illuminating lamp to keep the preset brightness for a preset time t1, wherein 0 is smaller than Xa.
Further, in the step S3, it is determined whether the absolute value of the difference between X2 and X0 is less than or equal to a preset value Xa, and whether the difference between the luminous fluxes X2 and X1 is greater than a preset value Xb, if so, the illumination lamp is controlled to maintain the preset brightness for a preset time t1, wherein Xa is greater than or equal to 0 and less than Xb.
Further, in the step S3, if yes, the brightness of the illumination lamp is controlled to be reduced by the preset brightness corresponding to the luminous flux X for a preset time t1, wherein X1 < luminous flux X < X2.
Further, in the step S3, the luminous flux X is (X1 +X2)/2, and the preset value Xb is not less than (1/3) X2.
Further, in the step S3, if not, the brightness of the illumination lamp is controlled to be adjusted by the preset brightness corresponding to the luminous flux X2.
Further, in the step S3, if yes, the following steps are executed after the illumination lamp is controlled to maintain the preset brightness for the preset time t 1:
s4, acquiring the luminous flux of the environment, and adjusting the brightness of the illuminating lamp according to the luminous flux of the environment;
s5, obtaining the ambient luminous flux after the brightness adjustment of the illuminating lamp as luminous flux X0, adjusting the brightness of the illuminating lamp according to the luminous flux X0, and then executing step S2.
Further, in the step S2, it is determined whether the difference between the light fluxes X0 and X1 is greater than the preset value Xc, and if so, step S3 is performed, wherein Xa < Xc is 0 or less.
Further, the preset value Xc is not less than (1/3) X0.
Further, in the step S1, the acquired ambient light flux X0 is compared with the preset light flux Xset, and if X0 is greater than Xset, the brightness of the illumination lamp is reduced; if X0 is equal to Xset, not adjusting the brightness of the illuminating lamp; if X0 is smaller than Xset, the brightness of the illuminating lamp is increased.
The invention also provides a range hood, which adopts the illumination control method.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects.
(1) After the illumination lamp is started, acquiring an electric signal output by the photosensitive sensor at the moment to acquire luminous flux X0, correspondingly adjusting the brightness of the illumination lamp, then acquiring the brightness output luminous flux X1 of the environment, and when X1 is less than X0, indicating that the brightness of the illumination lamp is reduced in the first adjustment; and acquiring luminous flux X2 of the environment after the brightness of the illuminating lamp is adjusted again, if the absolute value of the difference between X2 and X0 is smaller than or equal to preset luminous flux Xa, judging that X2 is approximately equal to X0, and X1 is smaller than X0, controlling the illuminating lamp to keep preset time t1 with preset brightness, so that the brightness of the illuminating lamp is not repeatedly and circularly adjusted, the problem of continuous circular adjustment of the brightness of the illuminating lamp caused by the fact that light of the illuminating lamp is injected into a photosensitive sensor is avoided, the phenomenon of continuous generation of light flash is avoided, and the use experience of a user is improved.
(2) When the invention judges that the light flashing phenomenon occurs, the brightness of the illuminating lamp is not regulated down by the preset brightness corresponding to the luminous flux X2, but the brightness of the illuminating lamp is regulated down by the preset brightness corresponding to the luminous flux X for keeping the preset time t1, because X1 is smaller than the preset brightness corresponding to the luminous flux X and the preset brightness corresponding to the luminous flux X is smaller than the preset brightness corresponding to the luminous flux X, the adjusting range of the illumination brightness is reduced, the illuminating lamp is not easy to be perceived by human eyes, the preset time t1 can also be kept by a certain brightness, and in the time range, the brightness of the illuminating lamp is not regulated automatically by the brightness corresponding to the acquired luminous flux, but the preset time t1 is kept by the preset brightness corresponding to the luminous flux X, so that the frequent light flashing phenomenon in a subsequent period is avoided.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
fig. 1 is a schematic flow chart of a lighting control method of a range hood according to the present invention;
fig. 2 is a flow chart of a lighting control method of the range hood according to the present invention;
fig. 3 is a flowchart of another lighting control method of the range hood according to the present invention.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3, the present invention provides a lighting control method of a range hood. The range hood is provided with an illuminating lamp with adjustable brightness and a photosensitive sensor for detecting ambient brightness and outputting an electric signal. The illumination control method includes the steps of:
s1, acquiring luminous flux X0 of the environment after the lighting lamp is started, and correspondingly adjusting the brightness of the lighting lamp.
S2, acquiring luminous flux X1 of the environment with the brightness adjusted by the illuminating lamp, correspondingly adjusting the brightness of the illuminating lamp, and enabling the brightness of the environment after adjustment to reach the required normal illumination brightness; at least judging whether X1 is smaller than X0, if yes, executing step S2.
S3, acquiring luminous flux X2 of the environment after the brightness of the illuminating lamp is adjusted, at least judging whether the absolute value of the difference between X2 and X0 is smaller than or equal to preset luminous flux Xa, if yes, judging that the illuminating lamp generates a light flashing phenomenon, controlling to reduce the brightness of the illuminating lamp, and keeping the preset brightness for a preset time t1, wherein 0 is smaller than the preset luminous flux Xa.
The brightness of the environment in the invention refers to the brightness of the environment in the kitchen around the range hood.
After the illumination lamp is started, the luminous flux X0 is acquired through the electric signal output by the photosensitive sensor, the brightness of the illumination lamp is correspondingly adjusted, then the brightness output luminous flux X1 of the environment is acquired, and when X1 is less than X0, the brightness of the illumination lamp is reduced when the first adjustment is shown; and acquiring luminous flux X2 of the environment after the brightness of the illuminating lamp is adjusted again, if the absolute value of the difference between X2 and X0 is smaller than or equal to preset luminous flux Xa, judging that X2 is approximately equal to X0, and X1 is smaller than X0, controlling the illuminating lamp to keep preset time t1 with preset brightness, so that the brightness of the illuminating lamp is not repeatedly and circularly adjusted, the problem of continuous circular adjustment of the brightness of the illuminating lamp caused by the fact that light of the illuminating lamp is injected into a photosensitive sensor is avoided, the phenomenon of continuous generation of light flash is avoided, and the use experience of a user is improved.
According to the invention, under the condition that the actual brightness of the environment is unchanged and the output value of the photosensitive sensor is influenced by the light of the illuminating lamp, the automatic repeated cyclic adjustment of the brightness of the illuminating lamp is avoided, and the brightness of the illuminating lamp is prevented from suddenly changing.
The illumination control program is preset with a plurality of preset brightnesses for adjusting the brightness of the illumination lamp, the preset brightness is inversely proportional to the corresponding ambient luminous flux, and the larger the ambient luminous flux is, the smaller the preset illumination brightness is.
The specific regulation and control process of the invention is that after the illumination lamp is started normally, the photosensitive sensor detects the ambient brightness at the moment and outputs an electric signal, and the luminous flux X0 of the environment is obtained according to the electric signal, so that the brightness of the illumination lamp is correspondingly regulated. When the brightness of the illuminating lamp is adjusted, the external environment brightness is changed, the luminous flux X1 of the environment brightness is acquired at the moment, and if the luminous flux X1 is reduced, the brightness of the illuminating lamp is controlled to be increased by the preset brightness, so that the environment reaches the required normal illumination brightness.
The actual luminous flux X2 of the ambient brightness is acquired again, a part of light rays of the illuminating lamp are irradiated into the photosensitive sensor, at the moment, the luminous flux X2 for acquiring the ambient brightness is increased, the acquired luminous flux is possibly larger than the actual luminous flux, and the adjustment of the ambient brightness is to judge whether the actual ambient brightness is adjusted in place or not through the ambient luminous flux acquired by the photosensitive sensor. If the brightness of the illumination lamp is regulated down by the change result of the luminous flux X2, the brightness of the illumination lamp is possibly reduced after the regulation, and the actual brightness of the environment is possibly dark; and then the luminous flux of the environment is acquired, the luminous flux is reduced, the brightness of the illuminating lamp is controlled to be high, the brightness of the illuminating lamp is continuously and circularly regulated and suddenly changed, and the frequent flashing phenomenon is generated.
In the step S3, the luminous flux X2 of the environment after the brightness adjustment of the illumination lamp is obtained, whether the absolute value of the difference between X2 and X0 is smaller than or equal to the preset luminous flux Xa is judged, whether the luminous flux X2 is larger than X1 is judged, if yes, the brightness of the illumination lamp is controlled to be reduced by the preset brightness corresponding to the luminous flux X, and the preset time t1 is kept, wherein X1 is smaller than the luminous flux X < X2.
When the invention judges that the light flashing phenomenon occurs, the brightness of the illuminating lamp is not regulated down by the preset brightness corresponding to the luminous flux X2, but the brightness of the illuminating lamp is regulated down by the preset brightness corresponding to the luminous flux X for keeping the preset time t1, because the preset brightness corresponding to the luminous flux X1 is less than the preset brightness corresponding to the luminous flux X and the preset brightness corresponding to the luminous flux X is less than the preset brightness corresponding to the luminous flux X, the lighting brightness regulating range is reduced, the lighting brightness is not easy to be perceived by human eyes, the preset time t1 can be kept by a certain brightness, and the brightness of the illuminating lamp is not regulated automatically by the brightness corresponding to the acquired luminous flux in the time range, but the preset time t1 is kept by the preset brightness corresponding to the luminous flux X, so that the light flashing phenomenon is avoided frequently occurring in a subsequent period.
Preferably, in the step S3, it is determined whether the absolute value of the difference between X2 and X0 is less than or equal to the preset luminous flux Xa, and whether the difference between the luminous fluxes X2 and X1 is greater than the preset value Xb, if so, it indicates that the luminous fluxes x2≡x0, X1 is far less than X2, and an obvious flashing phenomenon occurs.
The luminous flux X2 is approximately equal to X0 and X1 is less than X2, so that the occurrence of the light flash can be described, but in the actual use process, the light flash can be regulated normally according to the change of the ambient brightness, or the photosensitive sensor is influenced by the light of the illuminating lamp, but the brightness of the illuminating lamp is changed slightly. According to the preferred scheme of the invention, when the absolute value of the difference between X2 and X0 is smaller than or equal to the preset luminous flux Xa and the difference between the luminous fluxes X2 and X1 is larger than the preset value Xb, the change range of the luminous flux is larger, so that the brightness change of the illuminating lamp is large, obvious light flashing is known, the judging condition for judging the occurrence of the light flashing phenomenon is more accurate, at the moment, the regulation and control treatment for preventing the lighting light flashing is necessary, the unnecessary adjustment is avoided, and the service life of the illuminating lamp is prolonged.
The brightness of the illuminating lamp can be adjusted by adjusting the power of the illuminating lamp, such as adjusting the working current of the illuminating lamp; the brightness of the illuminating lamp can be adjusted by arranging a plurality of lamp beads or lamps which are respectively controllable and controlling the number of the lamp beads or lamps to be lightened.
Preferably, the plurality of preset brightnesses are preset lighting working currents, the preset lighting working currents are inversely proportional to the corresponding luminous flux of the environment, and the brightness of the illuminating lamp is adjusted by adjusting the lighting working currents.
In the step S3, if yes, the illumination lamp is controlled to keep the preset time t1 with the preset brightness corresponding to the luminous flux X, wherein X1 is less than the luminous flux X < X2, and by properly reducing the illumination brightness corresponding to the luminous flux, the brightness of the environment can be properly improved, and the actual brightness of the adjusted environment can be prevented from being too high.
Preferably, in the step S3, if yes, the illumination lamp is controlled to maintain the preset illumination working current corresponding to the luminous flux X of (x1+x2)/2 for the preset time t1.
The preset time t1 is more than or equal to 3min and less than or equal to 5min. The preset value Xb is more than or equal to (1/3) X2.
Further, in the step S3, if not, the brightness of the illumination lamp is controlled to be adjusted by the preset brightness corresponding to the luminous flux X2.
In the step S3, if not, comparing the acquired ambient light flux X2 with the preset light flux Xset, and if X2) is greater than Xset, reducing the brightness of the illumination lamp; if X2 is equal to Xset, not adjusting the brightness of the illuminating lamp; if X2 is smaller than Xset, the brightness of the illuminating lamp is increased.
In the step S2, preferably, the luminous flux X1 of the environment after the brightness adjustment of the illumination lamp is obtained, the brightness of the illumination lamp is correspondingly adjusted, whether the difference between the luminous fluxes X0 and X1 is greater than a preset value Xc is judged, if yes, the step S3 is executed, wherein Xa is greater than or equal to 0 and less than Xc.
When the difference between the luminous fluxes X0 and X1 is larger than the preset value Xc, the variation range of the luminous fluxes is larger, so that the brightness variation of the lighting lamp is larger, when the judging condition is established in the step S3, it is further explained that x0≡x2, X1 is far smaller than X0, and X1 is far smaller than X2, the brightness variation of the lighting lamp is large, obvious light flashing occurs, and the judging condition for judging that the light flashing occurs is more accurate.
More preferably, the preset value Xc is not less than (1/3) X0.
According to the invention, the preset value Xc is not less than (1/3) X0, the preset value Xb is not less than (1/3) X2, when the light flux is obtained to be larger or smaller, the working current of the illumination lamp is correspondingly regulated down or higher, when the light flux is changed to be more than one third, the working current of the illumination lamp is correspondingly regulated to be more than or equal to one third, the user can obviously feel the change of the brightness of the illumination lamp, the user can perceive frequent light flashing phenomenon, the brightness of the illumination lamp is regulated at the moment, the brightness of the illumination lamp is regulated by the preset brightness corresponding to the light flux X, the change of the current is less than one third, the stroboscopic phenomenon of the illumination lamp perceived by the user can be avoided, the regulation times can be reduced, and the loss and the energy consumption of the control module are reduced.
In the step S1 or the step S2, comparing the acquired ambient light flux X0 (or X1) with a preset light flux Xset, and if X0 (or X1) is greater than Xset, reducing the brightness of the illumination lamp; if X0 (or X1) is equal to Xset, not adjusting the brightness of the illuminating lamp; if X0 (or X1) is smaller than Xset, the brightness of the illuminating lamp is adjusted to be high.
In the invention, when the illuminating lamp is not started, the photosensitive sensor can always acquire the brightness of the environment, so that when the illuminating lamp is started, the electric control board of the range hood can give the illuminating lamp proper initial brightness in time. In practical application, the ambient luminous flux X0 obtained after the lighting lamp is started is very large (overshoot phenomenon), and is slightly larger than the preset luminous flux Xset. Namely, the obtained X0 after the corresponding illuminating lamp is started is larger, the brightness of the illuminating lamp can be reduced by the electric control board, and the re-obtained ambient luminous flux X1 can be smaller than X0.
Preferably, the photosensor detects the brightness of the environment in real time, the photosensor obtains the real-time luminous flux of 0.5 seconds or the average luminous flux within 0.5 seconds after the illumination lamp is turned on as X0, obtains the real-time luminous flux of 0.5 seconds or the average luminous flux within 0.5 seconds after the brightness is adjusted as X1, and obtains the real-time luminous flux after the brightness is adjusted again or the average luminous flux within 0.5 seconds after the brightness is adjusted again as X2.
Further, in the step S3, if yes, the following steps are executed after the illumination lamp is controlled to maintain the preset brightness for the preset time t 1:
s4, acquiring the luminous flux of the environment, and adjusting the brightness of the illuminating lamp according to the luminous flux of the environment;
s5, obtaining the ambient luminous flux after the brightness adjustment of the illuminating lamp as luminous flux X0, adjusting the brightness of the illuminating lamp according to the luminous flux X0, and then executing step S2.
In the step S3, if not, the step S5 is executed after the brightness of the corresponding control illumination lamp is adjusted.
And stopping executing the lighting control program of the range hood after the lighting lamp is turned off or the range hood is turned off.
In a specific embodiment, in the step S3, it is determined whether the difference between the light fluxes X2 and X1 is greater than the preset light flux Xb, and whether the absolute value of the difference between X2 and X0 is less than or equal to the preset light flux Xa, if yes, the brightness of the illumination lamp is controlled to be reduced by the preset brightness corresponding to the light flux (x1+x2)/2 for a preset time t1, wherein 0 is less than or equal to the preset light flux Xa < the preset light flux Xb.
In this specific embodiment, it may be determined whether the absolute value of the difference between X2 and X0 is equal to or smaller than the preset luminous flux Xa, or whether the difference between the luminous fluxes X2 and X1 is larger than the preset value Xb.
The unit of luminous flux is Liu Ming (lm). The preset luminous flux Xa is more than or equal to 0 and less than or equal to Xa and less than or equal to (1/10) X0, and Xb is more than or equal to (1/3) X2 and Xc is more than or equal to (1/3) X0.
Preferably, the preset luminous flux xb= (1/3) X2.
In a specific embodiment, X0 is 500lm, X1 is 330lm, and X2 is 498lm, wherein the preset luminous flux Xb is not less than (1/3) X2, that is, xb is not less than 166.
Preferably, the preset luminous flux Xa is 0-50lm. More preferably, the preset luminous flux Xa is 20lm.
Judging whether the absolute value of the difference between the luminous fluxes X2 and X0 is equal to or less than a preset luminous flux Xa, i.e., |x2-x0|=2lm, 2lm is equal to or less than 20lm, i.e., |x2-x0|is equal to or less than Xa.
Judging whether the difference between the luminous fluxes X2 and X1 is larger than the preset luminous flux Xb, wherein the difference between the X2 and X1 is 498-330=1688m, and the difference between the X2 and X1 is 168lm not less than 166lm, namely X2-X1 not less than Xb.
The corresponding relation between the luminous flux of a specific environment and the preset illumination working current is as follows:
when the obtained luminous flux is 500lm, the preset illumination working current I corresponding to the illumination brightness of the illumination lamp is adjusted to be 0.3mA.
When the acquired luminous flux is 333.33lm, the preset illumination working current I corresponding to the illumination brightness of the illumination lamp is adjusted to be 0.2mA.
When the obtained luminous flux is (x1+x2)/2 approximately equal to 416.67, the preset illumination working current corresponding to the illumination lamp brightness is adjusted to be (416.67/500) 0.3=0.25 mA, so that the ambient brightness can reach the luminous flux X0.
Further, in the step S1, if X0 is smaller than Xset, the luminance of the illumination lamp is increased, the ambient light flux X1 acquired in S2 is increased, and X1 > X0 is made larger, and the following steps are executed:
s3', acquiring luminous flux X2' of the environment, judging whether the difference between X1 and X2' is larger than or equal to preset luminous flux Xd or not, and whether the absolute value of the difference between X2' and X0 is smaller than or equal to preset luminous flux Xa or not, if yes, controlling the brightness of the illumination lamp to be reduced by the preset brightness corresponding to the luminous flux X2' or X0 to keep preset time t2, wherein the preset luminous flux Xa is larger than or equal to 0 and smaller than the preset luminous flux Xb and smaller than the preset luminous flux Xd.
The preset time t2 is greater than or equal to the preset time t1.
The preset luminous flux Xd is not less than (1/2) X2' or Xd is not less than (1/2) X0.
The invention also provides a range hood, which adopts the illumination control method.
The range hood is provided with a main control board, an illuminating lamp and a photosensitive sensor. The photosensitive sensor and the illuminating lamp are arranged on the shell of the range hood.
The light sensor and the illuminating lamp are respectively connected with the main control board and used for receiving luminous flux signals of the light sensor, controlling and adjusting working current of the illuminating lamp, and accordingly adjusting brightness of the illuminating lamp.
The range hood is arranged opposite to the kitchen range, and the illuminating lamp and the photosensitive sensor are positioned above the kitchen range.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present invention can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present invention.
Claims (10)
1. A lighting control method of a range hood is characterized in that: the range hood is provided with a lighting lamp with adjustable brightness and a photosensitive sensor for detecting the ambient brightness and outputting an electric signal, the control method comprises the following steps,
s1, acquiring luminous flux X0 of the environment after the lighting lamp is started, and correspondingly adjusting the brightness of the lighting lamp;
s2, acquiring luminous flux X1 of the environment after the brightness of the illuminating lamp is adjusted, correspondingly adjusting the brightness of the illuminating lamp, judging whether at least X1 is smaller than X0, and if yes, executing a step S3;
s3, acquiring luminous flux X2 of the environment after the brightness of the illuminating lamp is adjusted, at least judging whether the absolute value of the difference between X2 and X0 is smaller than or equal to a preset value Xa, if yes, judging that the illuminating lamp is subjected to the phenomenon of light flashing, and controlling the illuminating lamp to keep the preset brightness for a preset time t1, wherein 0 is smaller than Xa.
2. The lighting control method of a range hood according to claim 1, wherein:
in the step S3, it is determined whether the absolute value of the difference between X2 and X0 is less than or equal to a preset value Xa, and whether the difference between the luminous fluxes X2 and X1 is greater than a preset value Xb, if yes, the illumination lamp is controlled to maintain the preset brightness for a preset time t1, wherein Xa is greater than or equal to 0 and less than Xb.
3. The lighting control method of a range hood according to claim 2, wherein: in the step S3, if yes, the brightness of the illumination lamp is controlled to be reduced by the preset brightness corresponding to the luminous flux X for a preset time t1, wherein X1 is less than the luminous flux X is less than X2.
4. A lighting control method of a range hood according to claim 3, wherein: in the step S3, the luminous flux X is (x1+x2)/2, and the preset value Xb is not less than (1/3) X2.
5. A lighting control method of a range hood according to any one of claims 1 to 4, characterized in that:
in the step S3, if not, the brightness of the illumination lamp is controlled to be adjusted by the preset brightness corresponding to the luminous flux X2.
6. A lighting control method of a range hood according to any one of claims 1 to 4, characterized in that: in the step S3, if yes, after the illumination lamp is controlled to maintain the preset brightness for the preset time t1, the following steps are executed:
s4, acquiring the luminous flux of the environment, and adjusting the brightness of the illuminating lamp according to the luminous flux of the environment;
s5, obtaining the ambient luminous flux after the brightness adjustment of the illuminating lamp as luminous flux X0, adjusting the brightness of the illuminating lamp according to the luminous flux X0, and then executing step S2.
7. A lighting control method of a range hood according to any one of claims 1 to 4, characterized in that: in the step S2, it is determined whether the difference between the luminous fluxes X0 and X1 is greater than a preset value Xc, and if so, step S3 is performed, wherein Xa is greater than or equal to 0 and less than Xc.
8. The lighting control method of a range hood according to claim 7, wherein: the preset value Xc is more than or equal to (1/3) X0.
9. A lighting control method of a range hood according to any one of claims 1 to 5, characterized by: in the step S1, the acquired ambient light flux X0 is compared with a preset light flux Xset, and if X0 is greater than Xset, the brightness of the illumination lamp is reduced; if X0 is equal to Xset, not adjusting the brightness of the illuminating lamp; if X0 is smaller than Xset, the brightness of the illuminating lamp is increased.
10. A range hood, characterized in that: use of a lighting control method according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210993173.2A CN117628553A (en) | 2022-08-18 | 2022-08-18 | Range hood and illumination control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210993173.2A CN117628553A (en) | 2022-08-18 | 2022-08-18 | Range hood and illumination control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN117628553A true CN117628553A (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210993173.2A Pending CN117628553A (en) | 2022-08-18 | 2022-08-18 | Range hood and illumination control method thereof |
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| Country | Link |
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| CN (1) | CN117628553A (en) |
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