CN111726920B - Illumination control method and device, lamp and storage medium - Google Patents

Illumination control method and device, lamp and storage medium Download PDF

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CN111726920B
CN111726920B CN202010496815.9A CN202010496815A CN111726920B CN 111726920 B CN111726920 B CN 111726920B CN 202010496815 A CN202010496815 A CN 202010496815A CN 111726920 B CN111726920 B CN 111726920B
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illumination
lamp
rate
total
preset
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CN111726920A (en
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杜鹏杰
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Midea Intelligent Lighting and Controls Technology Co Ltd
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Midea Intelligent Lighting and Controls Technology Co Ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/105Controlling the light source in response to determined parameters
    • H05B47/11Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/165Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The application provides a lighting control method, a lighting control device, a lamp and a storage medium, wherein the method comprises the following steps: acquiring the current lamp-on time and the total illumination in the illumination range of the lamp in real time; determining that the current lamp-on duration is within a first time interval, and dynamically adjusting the lamp illumination according to the total illumination, a first reduction rate and a first improvement rate; determining that the current lamp-on time is within a second time interval, and dynamically adjusting the lamp illumination according to the total illumination, a second reduction rate and a second increase rate; the second rate of decrease is greater than the first rate of decrease and the second rate of increase is greater than the first rate of increase. This application is in first time interval and second time interval ground dynamic adjustment lamps and lanterns illuminance of self-adaptation, makes total illuminance constantly change, and user's pupil adapts to the change of total illuminance and constantly enlarges or dwindles, and user's eye structure is in the state of relaxing, under not influencing user's use of eye habit and study work rhythm, avoids user's eyes to keep fixed knot structure for a long time, effectively protects user's eyesight.

Description

Illumination control method and device, lamp and storage medium
Technical Field
The application belongs to the technical field of smart home, and particularly relates to a lighting control method, a lighting control device, a lamp and a storage medium.
Background
People use the lamp to illuminate every day, and especially students and office workers often study and work for a long time under the light, so that eye fatigue is easily caused. Therefore, the research on scientific illumination control schemes has important significance on visual health.
At present, a lamp is proposed in the related art, which reminds a user of resting eyes and correcting sitting posture while illuminating. However, the lamp only cultivates the eye use habit of the user, depends on the subjective cooperation of the user, and is difficult to improve the eye use health of the user if the user does not operate according to the reminding of the lamp. And the user is continuously reminded to rest or correct sitting postures, which can cause interference to the study or work of the user.
Disclosure of Invention
The application provides a lighting control method, a lighting control device, a lamp and a storage medium, wherein the illuminance of the lamp is dynamically adjusted in a self-adaptive manner in a first time interval and a second time interval, so that the total illuminance is continuously changed, the pupil of a user is continuously enlarged or reduced in response to the change of the total illuminance, and under the condition that the eye use habit and the learning and working rhythm of the user are not influenced, the eyes of the user are prevented from keeping a fixed structure for a long time, and the eyesight of the user is effectively protected.
An embodiment of a first aspect of the present application provides a lighting control method, including:
acquiring the current lamp-on time of a lamp and the total illumination in the illumination range of the lamp in real time, wherein the total illumination is the sum of the illumination of the lamp and the ambient illumination;
determining that the current lamp-on duration is within a first time interval, and dynamically adjusting the illumination of the lamp according to the total illumination, a first reduction rate and a first improvement rate;
determining that the current lamp-on duration is within a second time interval, and dynamically adjusting the illumination of the lamp according to the total illumination, a second reduction rate and a second increase rate; the starting time of the second time interval is later than the ending time of the first time interval, the second reduction rate is greater than the first reduction rate, and the second increase rate is greater than the first increase rate.
In some embodiments of the present application, said dynamically adjusting the illuminance of said luminaire in accordance with said total illuminance, a first rate of decrease, and a first rate of increase comprises:
according to the fact that the total illumination is larger than or equal to a first preset illumination, the illumination of the lamp is reduced at a first reduction rate until the total illumination is smaller than or equal to a second preset illumination;
and increasing the illumination of the lamp at a first increasing rate according to the condition that the total illumination is less than or equal to the second preset illumination until the total illumination is greater than or equal to the first preset illumination, and reducing the illumination of the lamp at a first reducing rate again.
In some embodiments of the present application, said dimming the illumination of said luminaire at a first reduced rate comprises:
and adjusting the illumination of the lamp according to the current electrical parameter of the lamp, the first unit time length included in the first reduction rate and the first adjustment step length.
In some embodiments of the present application, said adjusting the illuminance of said lamp according to the current electrical parameter of said lamp, the first unit time length included in the first reduction rate and the first adjustment step size comprises:
determining the current duty ratio of a power supply driving circuit of the lamp according to the current electrical parameters of the lamp;
calculating a plurality of descending duty ratios according to a first adjusting step included by the current duty ratio and a first reducing rate;
and adjusting the electrical parameters of the lamp in sequence according to the plurality of decreasing duty cycles every first unit time included by the first reduction rate.
In some embodiments of the present application, said dimming the illumination of said luminaire at a first rate of increase comprises:
and adjusting the illumination of the lamp according to the current electrical parameter of the lamp, the second unit time length included in the first improvement rate and the second adjustment step length.
In some embodiments of the present application, said adjusting the illuminance of said lamp according to the current electrical parameter of said lamp, the second unit time length included in the first increasing rate and the second adjusting step length comprises:
determining the current duty ratio of a power supply driving circuit of the lamp according to the current electrical parameters of the lamp;
calculating a plurality of incremental duty ratios according to the current duty ratio and a second adjusting step included in the first increasing rate;
and adjusting the electrical parameters of the lamp in sequence according to the plurality of increasing duty ratios every second unit time included by the first increasing rate.
In some embodiments of the present application, the method further comprises:
according to the fact that the illumination of the lamp is reduced to the lowest illumination of the lamp and the total illumination is still larger than the second preset illumination, the operation of increasing the illumination of the lamp according to the first increasing rate is executed;
and according to the fact that the illumination of the lamp is increased to the maximum illumination of the lamp and the total illumination is still smaller than the first preset illumination, the operation of reducing the illumination of the lamp at the first reduction rate is executed.
In some embodiments of the present application, said dynamically adjusting the illumination of said light fixture according to said total illumination, a second rate of decrease, and a second rate of increase comprises:
according to the fact that the total illumination is larger than or equal to a first preset illumination, the illumination of the lamp is reduced at a second reduction rate until the total illumination is smaller than or equal to a second preset illumination;
and increasing the illumination of the lamp at a second increasing rate according to the condition that the total illumination is less than or equal to the second preset illumination until the total illumination is greater than or equal to the first preset illumination, and reducing the illumination of the lamp at a second reducing rate.
In some embodiments of the present application, the method further comprises:
determining that the current lamp-on duration is within a third time interval;
and adjusting the illumination of the lamp so as to keep the total illumination within a preset illumination interval.
In some embodiments of the present application, the method further comprises:
according to the fact that the total illumination is larger than or equal to a third preset illumination, the illumination of the lamp is reduced according to a third reduction rate, and the third preset illumination is larger than the first preset illumination;
and controlling the lamp to be turned off according to the condition that the illumination of the lamp is reduced to the lowest illumination of the lamp and the total illumination is still greater than the standard illumination of the lamp.
In some embodiments of the present application, the second rate of decrease comprises a third adjustment step size that is greater than a first adjustment step size comprised by the first rate of decrease, and/or the second rate of decrease comprises a third duration per unit that is less than a first duration per unit comprised by the first rate of decrease;
the second rate of increase comprises a fourth adjustment step size that is greater than a second adjustment step size comprised by the first rate of increase, and/or the second rate of increase comprises a fourth unit duration that is less than a second unit duration comprised by the second rate of increase.
Embodiments of a second aspect of the present application provide a lighting control apparatus, comprising: the system comprises a processor, a power supply driving circuit, a light source and a photosensitive sensor;
the photosensitive sensor is used for acquiring total illumination within the illumination range of the light source in real time, and the total illumination is the sum of the illumination of the light source and the ambient illumination;
the processor is used for acquiring the current light-on time of the light source in real time, determining that the current light-on time is within a first time interval, and dynamically adjusting the illumination of the light source through the power supply driving circuit according to the total illumination, a first reduction rate and a first improvement rate; the power driving circuit is used for dynamically adjusting the illumination of the light source according to the total illumination, a second reduction rate and a second improvement rate; the starting time of the second time interval is later than the ending time of the first time interval, the second reduction rate is greater than the first reduction rate, and the second increase rate is greater than the first increase rate.
Embodiments of the third aspect of the present application provide a luminaire, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method of the first aspect.
An embodiment of a fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, the program being executable by a processor to implement the method of the first aspect.
The technical scheme provided in the embodiment of the application has at least the following technical effects or advantages:
the illumination of lamps and lanterns is dynamically adjusted in this application embodiment in self-adaptation ground in first time interval and the second time interval after turning on the light for the illumination of lamps and lanterns and the superimposed total illuminance of environment illuminance constantly change in the illumination scope of lamps and lanterns, make user's pupil adapt to the change of this total illuminance and constantly enlarge or dwindle, user's eye structures such as ciliary muscle, pupil, crystalline lens can be in the state of relaxing, do not influence under user's use of eyes custom, position of sitting and study or work rhythm, avoid user's eyes to keep fixed knot structure unchangeable for a long time, protect user's eyesight effectively. And the speed of regulating the illumination intensity in the second time interval is higher than that in the first time interval, and the speed of regulating the illumination intensity in the later time interval is higher, so that the illumination intensity of the lamp is changed more severely for longer time, the total illumination intensity in the illumination range of the lamp is changed more severely, the change range of the pupil of the user along with the change of the total illumination intensity is larger, the eyes of the user are effectively exercised and have a rest, and the vision of the user is well maintained.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 illustrates a flow chart of a lighting control method provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram illustrating a lighting control device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a lamp according to an embodiment of the present application;
fig. 4 is a schematic diagram of a storage medium provided in an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
A lighting control method, a lighting control device, a luminaire, and a storage medium according to embodiments of the present application are described below with reference to the accompanying drawings.
The embodiment of the application provides an illumination control method, wherein at least two time periods for dynamically adjusting the illumination of a lamp are set in the method, the illumination of the lamp is continuously adjusted in the time periods, so that the total illumination in the illumination range of the lamp is continuously changed from high to low and then from low to high, the total illumination is dynamically changed, the pupil of a user can be continuously reduced or enlarged along with the change of the total illumination, the eye structure of the user can be in a relaxed state, the eyes of the user are prevented from keeping a fixed structure unchanged for a long time, and the eye health of the user is effectively protected.
And in the time periods set by the embodiment of the application, the later time period is the faster the speed of adjusting the illumination intensity. The fatigue degree of the eyes of the user can be increased along with the prolonging of the time for using the lamp, the illumination change of the lamp is more severe for a longer time by designing the higher the illumination adjusting speed of the later time period, so that the total illumination change in the illumination range of the lamp is more severe, the change range of the pupils of the user along with the change of the total illumination is larger, the eyes of the user can be effectively exercised and have a rest, and the eyesight of the user can be well maintained.
Referring to fig. 1, the method specifically includes the following steps:
step 101: and acquiring the current lamp-on time of the lamp and the total illumination in the illumination range of the lamp in real time, wherein the total illumination is the sum of the illumination of the lamp and the ambient illumination.
In the embodiment of the application, the light-sensitive sensor is mounted on the lamp, the illumination in the illumination range of the lamp is detected in real time through the light-sensitive sensor, the illumination range of the lamp is a range which can be covered by light of the lamp, and the illumination in the illumination range is formed by overlapping the illumination of the lamp and the ambient illumination of the surrounding environment, so that the illumination in the illumination range of the lamp is called as total illumination in the embodiment of the application.
The executing main body of the embodiment of the application can be a lamp or a processor installed in the lamp, after the lamp is started, the time length from the starting time to the current time of the lamp is recorded in real time by the lamp or the processor of the lamp, and the time length is used as the current lamp-starting time length of the lamp.
The embodiment of the application presets two time periods which need to dynamically adjust the illumination of the lamp, wherein the two time periods are respectively called a first time interval and a second time interval, and the starting time of the second time interval is later than the ending time of the first time interval. The first time interval can be represented as (t 1, t 2), the second time interval can be represented as (t 3, t 4), wherein the value interval of t1 can be (1min, 60min), the value interval of t2 can be ((t 1+ 1) min, (t 1+ 20) min), t3> t2, and the value interval of t4 can be ((t 3+ 1) min, (t 3+ 20) min). The embodiment of the present application sets time periods [0, t1], [ t2, t3], and [ t4, + ∞) as the third time interval. The embodiment of the application does not limit the specific values of the first time interval, the second time interval and the third time interval, and the specific values can be determined according to requirements in practical application.
After the current lamp-on time of the lamp is obtained through the operation in step 101, it is first determined in which time interval of the first time interval, the second time interval, and the third time interval the current lamp-on time is located, and if it is determined that the current lamp-on time is located in the third time interval, the illuminance of the lamp is adjusted, so that the total illuminance in the illumination range of the lamp is kept in the preset illuminance interval.
In the embodiment of the present application, the amplitude of each adjustment may be preset, and the amplitude may be 5lux or 10 lux. And converting the amplitude into an electrical parameter according to the conversion relation between the illumination of the lamp and the current electrical parameters of the lamp, such as voltage, current, power and the like, and converting the converted electrical parameter into a duty ratio. Specifically, if the current total illumination is less than the lower limit value of the preset illumination interval, the illumination of the lamp needs to be increased, the current duty ratio of the power supply driving circuit of the lamp is gradually added with the converted duty ratio, after the current duty ratio of the power supply driving circuit is adjusted each time, whether the current total illumination is within the preset illumination interval is judged, and if yes, the operation of adjusting the illumination of the lamp is stopped. If not, the illumination of the lamp is continuously increased by improving the current duty ratio of the power supply driving circuit according to the mode until the current total illumination is within the preset illumination interval. Similarly, if the current total illumination is greater than the upper limit value of the preset illumination interval, the illumination of the lamp needs to be reduced, the converted duty ratio is subtracted from the current duty ratio of the power supply driving circuit of the lamp successively, after the current duty ratio of the power supply driving circuit is adjusted each time, whether the current total illumination is within the preset illumination interval or not is judged, and if yes, the operation of adjusting the illumination of the lamp is stopped. If not, the illumination of the lamp is continuously adjusted to be low by reducing the current duty ratio of the power supply driving circuit according to the mode until the current total illumination is within the preset illumination interval.
The preset illumination interval may be (M0-1/2A, M0+ 1/2A), where M0 is the standard illumination of the lamp, A is a preset coefficient, and the value of A may be 100 or 200. The embodiment of the application does not limit the standard illumination M0, the preset coefficient A and the specific value of the preset illumination interval of the lamp, and can be determined according to requirements in practical application.
The total illumination intensity in the illumination range of the lamp is stably kept in the preset illumination intensity interval in the third time interval in the above mode, so that the total illumination intensity in the third time interval is relatively stable, and a user can learn or work under the relatively stable illumination intensity.
After the current lamp-on time of the lamp is obtained through the operation in the step 101, if it is determined that the current lamp-on time is within the first time interval in which the illuminance of the lamp needs to be dynamically adjusted, the illuminance of the lamp is adjusted through the following operation in the step 102, so that the total illuminance within the illumination range of the lamp can be dynamically changed within a certain illuminance interval.
Step 102: and determining that the current lamp-on time is within a first time interval, and dynamically adjusting the illumination of the lamp according to the total illumination, the first reduction rate and the first improvement rate.
In the embodiment of the application, a first preset illumination and a second preset illumination are set, a value interval of the first preset illumination may be (M0-100, M0+ 100), a value interval of the second preset illumination may be (1/4M0,3/4M 0), where M0 is a standard illumination of a lamp, that is, an illumination of the lamp under a rated power, and a value interval of M0 may be [100, 3000]. The embodiment of the application does not limit the specific values of the first preset illumination, the second preset illumination and the standard illumination M0 of the lamp, and the specific values can be determined according to the actual condition of the lamp in practical application.
If the current lighting-on duration is within the first time interval, it is first determined whether the total illumination within the illumination range of the lamp obtained in step 101 is greater than or equal to a first preset illumination or less than or equal to a second preset illumination. And if the current total illumination is determined to be greater than or equal to the first preset illumination, the illumination of the lamp is reduced according to the first reduction rate until the total illumination is less than or equal to the second preset illumination. Specifically, the illumination of the lamp is adjusted according to the current electrical parameters of the lamp, the first unit duration included in the first reduction rate and the first adjustment step length. The current electrical parameters of the lamp comprise rated voltage, rated current, rated power of the lamp, current voltage, current, current power and the like. The first unit time period may be 0.1 second, 0.2 second, or the like. The value interval of the first adjustment step may be (0.1,5), for example, the first adjustment step may be 0.2, 0.5, or 1. The embodiment of the application does not limit the values of the first unit time length and the first adjusting step length, and the values can be determined according to requirements in practical application.
Firstly, the current duty ratio of a power supply driving circuit of the lamp is determined according to the current electrical parameters of the lamp. Specifically, the current duty ratio of the power driving circuit is calculated according to the rated voltage and the current voltage of the lamp. Or, calculating the current duty ratio of the power driving circuit according to the rated current and the current of the lamp. Or, calculating the current duty ratio of the power supply driving circuit according to the rated power and the current power of the lamp.
And calculating a plurality of decreasing duty ratios according to the current duty ratio and a first adjusting step included by the first reducing rate. And adjusting the electrical parameters of the lamp according to the plurality of descending duty ratios in sequence every first unit time included by the first reduction rate until the total illumination is less than or equal to a second preset illumination.
The process of dimming the illumination of the lamp can be further understood as the following cyclic process:
a1: calculating the current duty ratio to be regulated according to the current duty ratio of the power supply driving circuit and a first regulation step included in a first reduction rate; a2: transmitting the calculated duty ratio to a power supply driving circuit, adjusting the current duty ratio to the received duty ratio by the power supply driving circuit, and correspondingly changing electrical parameters such as voltage, current and the like applied to the light source after the duty ratio is adjusted, so that the illumination of the light source is reduced; a3: and B, judging whether the total illumination currently detected by the photosensitive sensor is less than or equal to a second preset illumination, if so, executing the operation of increasing the illumination of the lamp according to a first increasing rate, and if not, returning to the step A1 to execute after waiting for the first unit time.
For example, assuming that the current duty ratio of the power driving circuit is 80%, the first unit time length is 0.1 second, and the first adjustment step size is 1, according to the current duty ratio of 80% and the first adjustment step size 1, 79% of the duty ratio that needs to be adjusted currently is generated, the 79% of the duty ratio is transmitted to the power driving circuit, and the power driving circuit adjusts the current duty ratio from 80% to 79%. The current total illumination is detected through the photosensitive sensor, if the current total illumination is still larger than the second preset illumination, 78% of the duty ratio which needs to be adjusted currently is generated according to 79% of the current duty ratio and a first adjusting step length 1, the duty ratio is transmitted to the power supply driving circuit, the current duty ratio is adjusted to 78% from 79% by the power supply driving circuit, the current total illumination is detected through the photosensitive sensor, and if the current total illumination is smaller than or equal to the second preset illumination, the operation of increasing the illumination of the lamp at a first increasing rate is executed subsequently.
And gradually reducing the illumination of the lamp according to the operation, and if the illumination of the lamp is reduced to the lowest illumination of the lamp, and the total illumination in the illumination range of the lamp is still greater than the second preset illumination, subsequently increasing the illumination of the lamp according to the first increasing rate. After it is determined that the illumination of the lamp is adjusted to the lowest illumination of the lamp and the total illumination is still greater than the second preset illumination, the operation of increasing the illumination of the lamp at the first increasing rate may be executed after a preset time period, where the preset time period may be 5 seconds or 10 seconds. The specific value of the preset duration is not limited in the embodiment of the application, and can be determined according to requirements in practical application.
The minimum illumination of the lamp may be a product of a standard illumination of the lamp and a preset percentage, the preset percentage may be 10% or 15%, the standard illumination of the lamp may be 1000lux or 1200lux, and the minimum illumination of the lamp may be 100lux or 150 lux. The specific value of the lowest illumination of the lamp is not limited in the embodiment of the application, and the specific value can be determined according to the actual condition of the lamp in practical application.
If the current lamp-on duration is determined to be within the first time interval and the total illumination within the illumination range of the lamp is judged to be less than or equal to the second preset illumination, the illumination of the lamp is increased according to the first increasing rate until the total illumination is greater than or equal to the first preset illumination, and the operation of reducing the illumination of the lamp according to the first reducing rate is executed again. Specifically, the illumination of the lamp is adjusted according to the current electrical parameters of the lamp, the second unit time length included in the first improvement rate and the second adjustment step length. Wherein the second unit time length may be 0.1 second, 0.2 second, etc. The value interval of the second adjustment step may be (0.1,5), for example, the second adjustment step may be 0.2, 0.5, or 1. The embodiment of the application does not limit the values of the second unit time length and the second adjustment step length, and the values can be determined according to requirements in practical application.
Firstly, the current duty ratio of a power supply driving circuit of the lamp is determined according to the current electrical parameters of the lamp. The calculation method of the current duty ratio is the same as the above-mentioned method, and is not described herein again. And calculating a plurality of incremental duty ratios according to the current duty ratio and a second adjusting step included by the first increasing rate. And adjusting the electrical parameters of the lamp according to the plurality of increasing duty ratios in sequence every second unit time length included by the first increasing rate until the total illumination is greater than or equal to the first preset illumination.
The process of increasing the illumination of the lamp can be further understood as the following cyclic process:
b1: calculating the current duty ratio to be regulated according to the current duty ratio of the power supply driving circuit and a second regulating step included in the first increasing rate; b2: transmitting the calculated duty ratio to a power supply driving circuit, adjusting the current duty ratio to the received duty ratio by the power supply driving circuit, and correspondingly changing electrical parameters such as voltage, current and the like applied to the light source after the duty ratio is adjusted, so that the illumination of the light source is increased; b3: and judging whether the total illumination currently detected by the photosensitive sensor is greater than or equal to a first preset illumination, if so, executing the operation of reducing the illumination of the lamp according to a first reduction rate, and if not, returning to the step B1 to execute after waiting for a second unit time.
For example, if the current duty ratio of the power driving circuit is 70%, the second unit time is 0.1 second, and the second adjustment step size is 1, then 71% of the current duty ratio required to be adjusted is generated according to 70% of the current duty ratio and the second adjustment step size 1, the 71% of the duty ratio is transmitted to the power driving circuit, and the power driving circuit adjusts the current duty ratio from 70% to 71%. The current total illumination is detected through the photosensitive sensor, if the current total illumination is still smaller than a first preset illumination, a duty ratio 72% which needs to be adjusted currently is generated according to a current duty ratio 71% and a second adjusting step length 1, the duty ratio 72% is transmitted to the power supply driving circuit, the current duty ratio is adjusted to 72% from 71% by the power supply driving circuit, the current total illumination is detected through the photosensitive sensor, and if the current total illumination is larger than or equal to the first preset illumination, the operation of reducing the illumination of the lamp at a first reduction rate is performed subsequently.
And gradually increasing the illumination intensity of the lamp according to the operation, and if the total illumination intensity in the illumination range of the lamp is still smaller than the first preset illumination intensity when the illumination intensity of the lamp is increased to the maximum illumination intensity of the lamp, subsequently decreasing the illumination intensity of the lamp according to the first reduction rate. After the illuminance of the lamp is determined to be increased to the maximum illuminance of the lamp and the total illuminance is still less than the first preset illuminance, the illuminance of the lamp can be decreased according to the first reduction rate after waiting for a preset time, and the preset time can be 5 seconds or 10 seconds and the like.
In the first time interval, the illumination of the lamp is adjusted circularly according to the above manner, so that the total illumination in the illumination range of the lamp dynamically changes between the first preset illumination and the second preset illumination, and in the process of working or learning activities of a user in the illumination range of the lamp, pupils can expand or contract along with the change of the total illumination, so that eye structures such as ciliary muscles, pupils, crystalline lenses and the like of the user are in a relaxed state, and the eyesight of the user is effectively protected.
Step 103: determining that the current lamp-on time is within a second time interval, and dynamically adjusting the illumination of the lamp according to the total illumination, a second reduction rate and a second increase rate; the starting time of the second time interval is later than the ending time of the first time interval, the second reducing rate is larger than the first reducing rate, and the second increasing rate is larger than the first increasing rate.
If the current lighting time obtained in step 101 is within the second time interval, it is first determined whether the total illumination within the lighting range of the lamp obtained in step 101 is greater than or equal to the first preset illumination or is less than or equal to the second preset illumination. And if the current total illumination is determined to be greater than or equal to the first preset illumination, reducing the illumination of the lamp according to a second reduction rate according to the fact that the total illumination is greater than or equal to the first preset illumination until the total illumination is less than or equal to the second preset illumination. And specifically, the illumination of the lamp is adjusted according to the current electrical parameters of the lamp, the third unit time length included in the second reduction rate and the third adjustment step length. Wherein the third unit time period may be 0.1 second, 0.2 second, etc. The value interval of the third adjustment step may be (0.1,5), for example, the third adjustment step may be 0.2, 0.5, or 1. The embodiment of the application does not limit the values of the third unit time length and the third adjustment step length, and the values can be determined according to requirements in practical application.
Firstly, the current duty ratio of a power supply driving circuit of the lamp is determined according to the current electrical parameters of the lamp. And calculating to obtain a plurality of decreasing duty ratios according to the current duty ratio and a third adjusting step included by the second reduction rate. And adjusting the electrical parameters of the lamp according to the plurality of descending duty ratios in sequence every third unit time included by the second reduction rate until the total illumination is less than or equal to a second preset illumination.
Wherein, the starting time of the second time interval is later than the ending time of the first time interval, and the second reduction rate corresponding to the second time interval is larger than the first reduction rate corresponding to the first time interval. In particular, the second rate of decrease comprises a third adjustment step larger than the first adjustment step comprised by the first rate of decrease, and/or the second rate of decrease comprises a third unit duration smaller than the first unit duration comprised by the first rate of decrease.
For example, the second reduction rate includes a third adjustment step of 0.5 and the first reduction rate includes a first adjustment step of 0.2. Alternatively, the second reduction rate includes a third adjustment step of 1 and the first reduction rate includes a first adjustment step of 0.5. Alternatively, the second rate of decrease may comprise a third unit duration of 0.1s and the first rate of decrease may comprise a first unit duration of 0.2s. Or the second rate of decrease may comprise a third unit duration of 0.05s and the first rate of decrease may comprise a first unit duration of 0.1s.
And gradually reducing the illumination of the lamp according to the operation, and if the illumination of the lamp is reduced to the lowest illumination of the lamp, and the total illumination in the illumination range of the lamp is still greater than the second preset illumination, subsequently increasing the illumination of the lamp according to a second increasing rate. After determining that the illumination of the lamp is adjusted to the lowest illumination of the lamp and the total illumination is still greater than the second preset illumination, the operation of increasing the illumination of the lamp according to the second increasing rate may be executed after waiting for a preset time period, where the preset time period may be 5 seconds or 10 seconds. The specific value of the preset duration is not limited in the embodiment of the application, and can be determined according to requirements in practical application.
If the current total illumination in the illumination range of the lamp is determined to be smaller than or equal to the second preset illumination, the illumination of the lamp is increased at the second increasing rate according to the fact that the total illumination is smaller than or equal to the second preset illumination until the total illumination is larger than or equal to the first preset illumination, and the operation of reducing the illumination of the lamp at the second reducing rate is executed again. And specifically, the illumination of the lamp is adjusted according to the current electrical parameters of the lamp, the fourth unit time length included in the second improvement rate and the fourth adjustment step length. Wherein the fourth unit time period may be 0.1 second, 0.2 second, etc. The value interval of the fourth adjustment step may be (0.1,5), for example, the fourth adjustment step may be 0.2, 0.5, or 1. The embodiment of the application does not limit the values of the fourth unit time length and the fourth adjustment step length, and the values can be determined according to requirements in practical application.
Firstly, the current duty ratio of a power supply driving circuit of the lamp is determined according to the current electrical parameters of the lamp. And calculating a plurality of incremental duty ratios according to the current duty ratio and a fourth adjusting step included by the second increasing rate. And adjusting the electrical parameters of the lamp in sequence according to the plurality of increasing duty ratios every fourth unit time included by the second increasing rate until the total illumination is greater than or equal to the first preset illumination.
Wherein the start time of the second time interval is later than the end time of the first time interval, and the second rate of increase is greater than the first rate of increase. Specifically, the second increase rate includes a fourth adjustment step that is greater than the second adjustment step included in the first increase rate, and/or the second increase rate includes a fourth unit duration that is less than the second unit duration included in the second increase rate.
For example, the second ramp-up rate includes a fourth adjustment step size of 0.5, and the first ramp-up rate includes a second adjustment step size of 0.2. Alternatively, the second increase rate includes a fourth adjustment step of 1 and the first increase rate includes a second adjustment step of 0.5. Alternatively, the fourth unit duration included in the second ramp-up rate is 0.1s, and the second unit duration included in the first ramp-up rate is 0.2s. Or the fourth unit duration included in the second ramp-up rate is 0.05s and the second unit duration included in the first ramp-up rate is 0.1s.
And gradually increasing the illumination of the lamp according to the operation, and if the illumination of the lamp is increased to the maximum illumination of the lamp, and the total illumination in the illumination range of the lamp is still smaller than the first preset illumination, subsequently decreasing the illumination of the lamp according to a second reduction rate. After it is determined that the illumination of the lamp is increased to the maximum illumination of the lamp and the total illumination is still less than the first preset illumination, the operation of decreasing the illumination of the lamp according to the second decreasing rate may be executed after waiting for a preset time period, where the preset time period may be 5 seconds or 10 seconds. The specific value of the preset duration is not limited in the embodiment of the application, and can be determined according to requirements in practical application.
The embodiment of the application further sets a third preset illumination, the third preset illumination is greater than the first preset illumination, and the third preset illumination can be (M0 + 1/2A), wherein M0 is the standard illumination of the lamp, a is a preset coefficient, and the value of a can be 100 or 200. The embodiment of the application does not limit the specific values of the standard illumination M0, the preset coefficient A and the third preset illumination of the lamp, and can be determined according to requirements in practical application.
And comparing the total illumination within the illumination range of the lamp with a third preset illumination at any time after the lamp is started, and if the total illumination is greater than or equal to the third preset illumination, reducing the illumination of the lamp according to a third reduction rate.
Wherein the third reduction rate comprises a fifth unit duration and a fifth adjustment step size, and the fifth unit duration may be 0.1s, 0.2s, or 0.5s, etc. The value range of the fifth adjustment step may be (0.02,0.2), for example, the value of the fifth adjustment step may be 0.03, 0.05, 0.01, or the like. The embodiment of the present application does not limit specific values of the fifth unit duration and the fifth adjustment step length, and may be determined according to requirements in practical applications.
In the process of reducing the illumination of the lamp, if the illumination of the lamp is reduced to the lowest illumination of the lamp, and the total illumination in the illumination range of the lamp is still greater than the standard illumination of the lamp, it indicates that the ambient illumination of the current environment where the lamp is located is very high, and the lamp is controlled to be turned off.
The illumination of lamps and lanterns is dynamically adjusted in this application embodiment in self-adaptation ground in first time interval and the second time interval after turning on the light for the illumination of lamps and lanterns and the superimposed total illuminance of environment illuminance constantly change in the illumination scope of lamps and lanterns, make user's pupil adapt to the change of this total illuminance and constantly enlarge or dwindle, user's eye structures such as ciliary muscle, pupil, crystalline lens can be in the state of relaxing, do not influence under user's use of eyes custom, position of sitting and study or work rhythm, avoid user's eyes to keep fixed knot structure unchangeable for a long time, protect user's eyesight effectively. And the speed of regulating the illumination intensity in the second time interval is higher than that in the first time interval, and the speed of regulating the illumination intensity in the later time interval is higher, so that the illumination intensity of the lamp is changed more severely for longer time, the total illumination intensity in the illumination range of the lamp is changed more severely, the change range of the pupil of the user along with the change of the total illumination intensity is larger, the eyes of the user are effectively exercised and have a rest, and the vision of the user is well maintained.
An embodiment of the present application further provides an illumination control apparatus, configured to perform the illumination control method according to the foregoing embodiment, as shown in fig. 2, the apparatus includes: a processor 200, a power driving circuit 300, a light source 400 and a photosensor 500. The processor 200 is connected to the power driving circuit 300 and the photosensitive sensor 500, respectively, and the power driving circuit 300 is connected to the light source 400.
The lighting control device may be a lamp such as a desk lamp or a ceiling lamp, and the light source 400 may be an LED lamp. The light sensitive sensor 500 is mounted on the lighting control device within the range covered by the light of the device, if the lighting control device is a desk lamp, the light sensitive sensor 500 may be mounted on the surface of the base of the desk lamp.
The photosensitive sensor 500 is used for acquiring the total illumination within the illumination range of the light source 400 in real time, wherein the total illumination is the sum of the illumination of the light source 400 and the ambient illumination;
the processor 200 is configured to obtain a current lighting-on duration of the light source 400 in real time, determine that the current lighting-on duration is within a first time interval, and dynamically adjust the illumination of the light source 400 through the power driving circuit 300 according to the total illumination, the first reduction rate and the first improvement rate; and is configured to determine that the current lamp-on duration is within a second time interval, and dynamically adjust the illuminance of the light source 400 through the power driving circuit 300 according to the total illuminance, the second reduction rate, and the second increase rate; the start time of the second time interval is later than the end time of the first time interval, the second reduction rate is greater than the first reduction rate, and the second increase rate is greater than the first increase rate.
The processor 200 is configured to reduce the illuminance of the light source 400 through the power driving circuit 300 according to a first reduction rate until the total illuminance is less than or equal to a second preset illuminance; and an operation for increasing the illuminance of the light source 400 at the first increasing rate through the power driving circuit 300 according to the total illuminance being less than or equal to the second preset illuminance until the total illuminance is greater than or equal to the first preset illuminance, and decreasing the illuminance of the light source 400 at the first decreasing rate through the power driving circuit 300 again.
And the processor 200 is configured to adjust the illuminance of the light source 400 through the power driving circuit 300 according to the current electrical parameter of the light source 400, the first unit duration included in the first reduction rate, and the first adjustment step size.
A processor 200 for determining a current duty cycle of the power driving circuit 300 of the light source 400 according to a current electrical parameter of the light source 400; calculating to obtain a plurality of degressive duty ratios according to the current duty ratio and a first adjusting step length included by a first reduction rate; the electrical parameters of the light source 400 are adjusted by the power driving circuit 300 in sequence according to a plurality of decreasing duty cycles, every first unit duration comprised by the first reduction rate.
And the processor 200 is configured to adjust the illuminance of the light source 400 through the power driving circuit 300 according to the current electrical parameter of the light source 400, the second unit duration included in the first increasing rate, and the second adjusting step length.
A processor 200 for determining a current duty cycle of the power driving circuit 300 of the light source 400 according to a current electrical parameter of the light source 400; calculating to obtain a plurality of increasing duty ratios according to the current duty ratio and a second adjusting step included in the first increasing rate; the electrical parameters of the light source 400 are adjusted by the power driving circuit 300 in sequence according to a plurality of incremental duty cycles every second unit duration encompassed by the first ramp-up rate.
A processor 200 for increasing the illuminance of the light source 400 at a first increasing rate through the power driving circuit 300 according to the illuminance of the light source 400 being decreased to the lowest illuminance of the light source 400 and the total illuminance being still greater than a second preset illuminance; according to the operation that the illumination of the light source 400 is increased to the maximum illumination of the light source 400 and the total illumination is still less than the first preset illumination, the illumination of the light source 400 is reduced at the first reduction rate by the power driving circuit 300.
The processor 200 is configured to reduce the illuminance of the light source 400 according to a second reduction rate through the power driving circuit 300 according to the total illuminance being greater than or equal to the first preset illuminance until the total illuminance is less than or equal to the second preset illuminance; and increasing the illuminance of the light source 400 at a second increasing rate through the power driving circuit 300 according to the total illuminance being less than or equal to the second preset illuminance until the total illuminance is greater than or equal to the first preset illuminance, and decreasing the illuminance of the light source 400 at a second decreasing rate through the power driving circuit 300 again.
A processor 200, configured to determine that the current light-on duration is within a third time interval; the illumination of the light source 400 is adjusted by the power driving circuit 300 so that the total illumination is maintained within the preset illumination interval.
The processor 200 is configured to reduce the illuminance of the light source 400 according to a third reduction rate by the power driving circuit 300 according to the total illuminance being greater than or equal to a third preset illuminance, where the third preset illuminance is greater than the first preset illuminance; the light source 400 is controlled to be turned off according to the illumination intensity of the light source 400 being adjusted to the lowest illumination intensity of the light source 400 and the total illumination intensity still being greater than the standard illumination intensity of the light source 400.
The second reduction rate comprises a third adjustment step larger than the first adjustment step comprised by the first reduction rate, and/or the second reduction rate comprises a third unit duration smaller than the first unit duration comprised by the first reduction rate;
the second rate of increase comprises a fourth adjustment step that is larger than the second adjustment step comprised by the first rate of increase, and/or the second rate of increase comprises a fourth unit duration that is smaller than the second unit duration comprised by the second rate of increase.
The lighting control device provided by the above embodiment of the present application and the lighting control method provided by the embodiment of the present application have the same beneficial effects as the method adopted, operated or implemented by the application program stored in the lighting control device.
The embodiment of the application also provides a lamp to execute the above illumination control method. Please refer to fig. 3, which illustrates a schematic diagram of a lamp according to some embodiments of the present disclosure. As shown in fig. 3, the luminaire 2 includes: the system comprises a processor 200, a memory 201, a bus 202 and a communication interface 203, wherein the processor 200, the communication interface 203 and the memory 201 are connected through the bus 202; the memory 201 stores a computer program that can be executed on the processor 200, and the processor 200 executes the lighting control method provided by any one of the foregoing embodiments when executing the computer program.
The Memory 201 may include a Random Access Memory (RAM) and 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 203 (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.
Bus 202 can 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. The memory 201 is configured to store a program, and the processor 200 executes the program after receiving an execution instruction, and the lighting control method disclosed in any of the foregoing embodiments of the present application may be applied to the processor 200, or implemented by the processor 200.
The processor 200 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 200. The Processor 200 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application 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 application 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 module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 201, and the processor 200 reads the information in the memory 201 and completes the steps of the method in combination with the hardware thereof.
The electronic device provided by the embodiment of the application and the lighting control method provided by the embodiment of the application have the same beneficial effects as the method adopted, operated or realized by the electronic device.
Referring to fig. 4, the computer-readable storage medium is an optical disc 30, on which a computer program (i.e., a program product) is stored, and when the computer program is executed by a processor, the computer program executes the lighting control method provided in any of the foregoing embodiments.
It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, a phase change memory (PRAM), a Static Random Access Memory (SRAM), a Dynamic Random Access Memory (DRAM), other types of Random Access Memories (RAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a flash memory, or other optical and magnetic storage media, which are not described in detail herein.
The computer-readable storage medium provided by the above-mentioned embodiments of the present application and the lighting control method provided by the embodiments of the present application have the same beneficial effects as the method adopted, executed or implemented by the application program stored in the computer-readable storage medium.
It should be noted that:
in the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the application, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the application and aiding in the understanding of one or more of the various inventive aspects.
Moreover, those of skill in the art will understand that although some embodiments described herein include some but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A lighting control method, comprising:
acquiring the current lamp-on time of a lamp and the total illumination in the illumination range of the lamp in real time, wherein the total illumination is the sum of the illumination of the lamp and the ambient illumination;
determining that the current lamp-on time length is within a first time interval, and adjusting the illumination of the lamp according to the total illumination being greater than or equal to a first preset illumination, the current electrical parameter of the lamp, a first unit time length included in a first reduction rate and a first adjustment step length until the total illumination is less than or equal to a second preset illumination; adjusting the illumination of the lamp according to the current electrical parameter of the lamp, the second unit time length included by the first increasing rate and the second adjusting step length according to the total illumination being less than or equal to the second preset illumination until the total illumination being greater than or equal to the first preset illumination, and executing the operation of reducing the illumination of the lamp according to the first reducing rate again;
determining that the current lamp-on time is within a second time interval, and reducing the illumination of the lamp according to a second reduction rate until the total illumination is less than or equal to a second preset illumination according to the fact that the total illumination is greater than or equal to a first preset illumination; according to the fact that the total illumination is smaller than or equal to the second preset illumination, increasing the illumination of the lamp at a second increasing rate until the total illumination is larger than or equal to the first preset illumination, and then reducing the illumination of the lamp at a second reducing rate; the starting time of the second time interval is later than the ending time of the first time interval, the second reduction rate is greater than the first reduction rate, and the second increase rate is greater than the first increase rate.
2. The method of claim 1, wherein said adjusting the illuminance of the lamp according to the current electrical parameters of the lamp, the first reduction rate comprising a first unit time length and a first adjustment step size comprises:
determining the current duty ratio of a power supply driving circuit of the lamp according to the current electrical parameters of the lamp;
calculating to obtain a plurality of degressive duty ratios according to the current duty ratio and a first adjusting step length included by a first reduction rate;
and adjusting the electrical parameters of the lamp in sequence according to the plurality of decreasing duty cycles every first unit time included by the first reduction rate.
3. The method of claim 1, wherein said adjusting the illuminance of the light fixture according to the current electrical parameter of the light fixture, the second duration of the unit comprised by the first increase rate, and the second adjustment step size comprises:
determining the current duty ratio of a power supply driving circuit of the lamp according to the current electrical parameters of the lamp;
calculating a plurality of incremental duty ratios according to the current duty ratio and a second adjusting step included in the first increasing rate;
and adjusting the electrical parameters of the lamp in sequence according to the plurality of increasing duty ratios every second unit time included by the first increasing rate.
4. The method according to any one of claims 1-3, further comprising:
according to the fact that the illumination of the lamp is adjusted to be the lowest illumination of the lamp and the total illumination is still larger than the second preset illumination, the operation of increasing the illumination of the lamp according to the first increasing speed is executed;
and according to the fact that the illumination of the lamp is increased to the maximum illumination of the lamp and the total illumination is still smaller than the first preset illumination, the operation of reducing the illumination of the lamp at the first reduction rate is executed.
5. The method according to any one of claims 1-3, further comprising:
determining that the current lamp-on duration is within a third time interval;
and adjusting the illumination of the lamp so as to keep the total illumination within a preset illumination interval.
6. The method according to any one of claims 1-3, further comprising:
according to the fact that the total illumination is larger than or equal to a third preset illumination, the illumination of the lamp is reduced according to a third reduction rate, and the third preset illumination is larger than the first preset illumination;
and controlling the lamp to be turned off according to the condition that the illumination of the lamp is reduced to the lowest illumination of the lamp and the total illumination is still greater than the standard illumination of the lamp.
7. A method according to any of claims 1-3, wherein the second rate of decrease comprises a third adjustment step larger than the first adjustment step comprised by the first rate of decrease, and/or wherein the second rate of decrease comprises a third unit duration smaller than the first unit duration comprised by the first rate of decrease;
the second rate of increase comprises a fourth adjustment step size that is greater than a second adjustment step size comprised by the first rate of increase, and/or the second rate of increase comprises a fourth unit duration that is less than a second unit duration comprised by the second rate of increase.
8. A lighting control device, comprising: the system comprises a processor, a power supply driving circuit, a light source and a photosensitive sensor;
the photosensitive sensor is used for acquiring total illumination within the illumination range of the light source in real time, and the total illumination is the sum of the illumination of the light source and the ambient illumination;
the processor is used for acquiring the current lighting-on time length of the light source in real time, determining that the current lighting-on time length is located in a first time interval, and adjusting the illumination of the lamp according to the total illumination greater than or equal to a first preset illumination, the current electrical parameters of the lamp, a first unit time length included by a first reduction rate and a first adjustment step length until the total illumination is less than or equal to a second preset illumination; adjusting the illumination of the lamp according to the current electrical parameter of the lamp, the second unit time length included by the first increasing rate and the second adjusting step length according to the total illumination being less than or equal to the second preset illumination until the total illumination being greater than or equal to the first preset illumination, and executing the operation of reducing the illumination of the lamp according to the first reducing rate again; the system comprises a lamp controller, a lamp controller and a controller, wherein the lamp controller is used for determining that the current lamp-on time length is within a second time interval, and reducing the illumination of the lamp according to a second reduction rate until the total illumination is less than or equal to a second preset illumination according to the fact that the total illumination is greater than or equal to the first preset illumination; according to the fact that the total illumination is smaller than or equal to the second preset illumination, increasing the illumination of the lamp at a second increasing rate until the total illumination is larger than or equal to the first preset illumination, and then executing the operation of reducing the illumination of the lamp at a second reducing rate again; the starting time of the second time interval is later than the ending time of the first time interval, the second reduction rate is greater than the first reduction rate, and the second increase rate is greater than the first increase rate.
9. A luminaire comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor executes the computer program to implement the method according to any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program is executed by a processor to implement the method according to any of claims 1-7.
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