CN111629498B - 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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Publication number
CN111629498B
CN111629498B CN202010496161.XA CN202010496161A CN111629498B CN 111629498 B CN111629498 B CN 111629498B CN 202010496161 A CN202010496161 A CN 202010496161A CN 111629498 B CN111629498 B CN 111629498B
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illumination
lamp
current
preset
total
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CN111629498A (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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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/12—Controlling the intensity of the light using optical feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/16—Controlling the light source by timing means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
    • 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
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
    • 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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  • 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, 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; 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 until the total illumination is smaller than or equal to a second preset illumination; and increasing the illumination of the lamp 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 executing the operation of reducing the illumination of the lamp again. This application dynamic adjustment lamps and lanterns's illuminance adaptively ground makes the total illuminance in the lamps and lanterns illumination scope constantly change, and the user pupil adapts to the change of illuminance and constantly enlarges or dwindles, and user's eyes structure can be in the state of relaxing, under not influencing user's use of eyes custom and study or 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 lamps for illumination every day, and especially students and office workers often learn and work for a long time under light, so that eye fatigue is easily caused. Therefore, the research on scientifically lighting control schemes is of great significance to 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 has the difficulty in improving the eye use health of the user if the user does not perform reminding operation according to 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 an illumination control method, an illumination control device, a lamp and a storage medium, the illumination of the lamp is dynamically adjusted in a self-adaptive manner, the total illumination in the illumination range of the lamp is continuously changed, and the pupil of a user is continuously enlarged or reduced in a manner of adapting to the change of the illumination, so that the eyesight of the user is effectively protected without influencing the eye use habit and learning or working rhythm of the user.
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, wherein the starting time of the first time interval is the time after the preset lamp-on duration of the lamp;
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 until the total illumination is smaller than or equal to a second preset illumination;
and increasing the illumination of the lamp 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 executing the operation of reducing the illumination of the lamp again.
In some embodiments of the present application, said dimming the illuminance of said luminaire comprises:
and adjusting the illumination of the lamp according to the current electrical parameters of the lamp, the first unit time length and the first adjusting step length included by the first adjusting speed.
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 adjusting rate and the first 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 to obtain a plurality of degressive duty ratios according to the current duty ratio and a first adjusting step length included by a first adjusting 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 adjustment rate.
In some embodiments of the present application, said increasing the illuminance of said light fixture comprises:
and adjusting the illumination of the lamp according to the current electrical parameters of the lamp, the second unit duration and the second adjusting step length included in the second adjusting speed.
In some embodiments of the present application, said adjusting the illuminance of the lamp according to the current electrical parameter of the lamp, the second unit time length included in the second adjustment rate, and the second adjustment step size includes:
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 increasing duty ratios according to the current duty ratio and a second adjusting step included by a second adjusting rate;
and adjusting the electrical parameters of the lamp in sequence according to the plurality of incremental duty cycles every second unit time length included by the second adjusting rate.
In some embodiments of the present application, the method further comprises:
determining that the current lamp-on time length is within a second 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 adjusting 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 method further comprises:
and 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 is executed.
In some embodiments of the present application, the method further comprises:
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 is executed.
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 the current lamp-on time of the light source and the total illumination in the illumination range of the light source in real time, wherein 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 lamp-on time of the light source in real time, and determining that the current lamp-on time is within a first time interval, wherein the starting time of the first time interval is the time after the preset lamp-on time of the lamp; controlling the power supply driving circuit to reduce the illumination of the light source 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; and the controller is used for controlling the power driving circuit to increase the illumination of the light source according to the condition that the total illumination is less than or equal to a second preset illumination until the total illumination is greater than or equal to the first preset illumination, and then executing the operation of reducing the illumination of the lamp again.
In some embodiments of the present application, the processor is configured to determine a current duty cycle of the power driving circuit according to a current electrical parameter of the light source; 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 adjusting rate; and adjusting the electrical parameters of the light source by the power driving circuit according to the plurality of degressive duty ratios in sequence every first unit time length included by the first adjusting rate.
In some embodiments of the present application, the processor is configured to determine a current duty cycle of the power driving circuit according to a current electrical parameter of the light source; calculating to obtain a plurality of increasing duty ratios according to the current duty ratio and a second adjusting step included by a second adjusting rate; and adjusting the electrical parameter of the light source by the power driving circuit in sequence according to the plurality of incremental duty cycles every second unit time length included by the second adjustment rate.
Embodiments of a third aspect of the present application provide a luminaire comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing 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 at least has the following technical effects or advantages:
the illumination of lamps and lanterns is dynamically adjusted in this application embodiment self-adaptation ground in the first 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 habit of using the eye, 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.
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 is a schematic flow chart illustrating a lighting control method according to an embodiment of the present application;
fig. 2 is another schematic flow chart diagram illustrating a lighting control method provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram illustrating a lighting control device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a lamp provided in an embodiment of the present application;
fig. 5 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 a time period for dynamically adjusting the illumination of a lamp is set, the illumination of the lamp is continuously adjusted in the time period, 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 in the time period after the user uses the lamp for a period of time, the eye of the user is prevented from keeping a fixed structure unchanged for a long time, and the eye health of the user is effectively protected.
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 within 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 photosensitive sensor is installed on the lamp, the illuminance in the illumination range of the lamp is detected in real time through the photosensitive sensor, the illumination range of the lamp is a range which can be covered by the light of the lamp, and the illuminance in the illumination range is formed by overlapping the illuminance of the lamp and the ambient illuminance of the surrounding environment.
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 lamp or the processor of the lamp records the time length from the starting time to the current time of the lamp in real time, and the time length is used as the current lamp-on time length of the lamp.
Step 102: and determining that the current lamp-on time is within a first time interval, wherein the starting time of the first time interval is the time after the preset lamp-on time.
The time period required for dynamically adjusting the illumination of the lamp is preset, the time period is the first time interval, the starting time of the first time interval is the time after the lamp is turned on for the preset time, and the preset time can be 1 minute or 2 minutes and the like. The first time interval may be represented as (t 1, t 2), where the value interval of t1 may be (1min, 60min), and the value interval of t2 may be ((t 1+ 1) min, (t 1+ 20) min). The embodiment of the present application sets the time periods [0, t1] and [ t2, + ∞) as the second time interval. The specific values of the first time interval and the second time interval are not limited in the embodiment of the application, and 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 whether the current lamp-on time is in the first time interval or the second time interval, and if it is determined that the current lamp-on time is in the second time interval, the illumination of the lamp is adjusted so that the total illumination in the illumination range of the lamp is kept in the preset illumination 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 driving circuit of the lamp successively, after the current duty ratio of the power 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 specific values of the standard illumination M0, the preset coefficient A and the preset illumination interval of the lamp, and can be determined according to requirements in practical application.
After the current lamp-on time of the lamp is obtained through the operation of 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 operations of steps 103 and 104, so that the total illuminance within the illumination range of the lamp can be dynamically changed within a certain illuminance interval.
Step 103: and reducing the illumination of the lamp according to the condition 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.
In the embodiment of the application, a first preset illumination and a second preset illumination are set, the value interval of the first preset illumination can be (M0-100, M0+ 100), the value interval of the second preset illumination can be (1/4M0, 3/4M 0), wherein M0 is the standard illumination of the lamp, namely the illumination of the lamp under the rated power, and the value interval of M0 can 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 it is determined that the total illumination obtained in step 101 is greater than or equal to the first preset illumination, the illumination of the lamp is reduced until the total illumination is less than or equal to the second preset illumination. In the embodiment of the present application, the amplitude of each turn-down may be set, for example, 5lux or 10lux may be turned down each time. And converting the set amplitude into a duty ratio according to the conversion relation between the illumination and electrical parameters such as voltage, current or power of the lamp. And subtracting the converted duty ratio from the current duty ratio of the power driving circuit of the lamp successively, judging whether the current total illumination is less than or equal to a second preset illumination after adjusting the current duty ratio of the power driving circuit every time, and if so, executing the operation of the step 104. 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.
In other embodiments of the present application, the illuminance of the lamp may also be adjusted according to the current electrical parameter of the lamp, the first unit time length included in the first adjustment rate, and the first adjustment step size. 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 to obtain a plurality of degressive duty ratios according to the current duty ratio of the power supply driving circuit and a first adjusting step included in the first adjusting speed. 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 adjusting rate until the total illumination is less than or equal to a second preset illumination.
The process of turning down 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 length included in a first regulation rate; a2: the calculated duty ratio is transmitted to a power supply driving circuit, the current duty ratio is adjusted to the received duty ratio by the power supply driving circuit, electrical parameters such as voltage and current applied to the light source are correspondingly changed after the duty ratio is adjusted, and the illumination of the light source is lowered; a3: and 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 the step 104, otherwise, returning to the step A1 to execute after waiting for the first unit time.
For example, if the current duty ratio of the power driving circuit is 80%, the first unit duration is 0.1 second, and the first adjustment step is 1, 79% of the duty ratio that needs to be adjusted currently is generated according to the current duty ratio of 80% and the first adjustment step 1, 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%. Detecting the current total illumination through a photosensitive sensor, if the current total illumination is still greater than the second preset illumination, generating 78% of the current duty ratio which needs to be adjusted according to 79% of the current duty ratio and a first adjusting step length 1, transmitting 78% of the duty ratio to a power supply driving circuit, adjusting the current duty ratio from 79% to 78% by the power supply driving circuit, detecting the current total illumination through the photosensitive sensor, and if the current total illumination is less than or equal to the second preset illumination, subsequently executing the operation of the step 104.
And gradually reducing the illumination of the lamp according to the operation, and if the total illumination in the illumination range of the lamp is still greater than the second preset illumination when the illumination of the lamp is reduced to the minimum illumination of the lamp, subsequently increasing the illumination of the lamp according to the operation in the step 104. 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 step 104 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 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.
Step 104: and increasing the illumination of the lamp according to the total illumination less than or equal to the second preset illumination until the total illumination is greater than or equal to the first preset illumination, and executing the operation of the step 103 again.
And if the total illumination within the illumination range of the lamp is determined to be less than or equal to the second preset illumination, increasing the illumination of the lamp until the total illumination is greater than or equal to the first preset illumination. In the embodiment of the present application, the amplitude of each increase may be set, for example, each increase is 5lux or 10 lux. And converting the set amplitude into a duty ratio according to the conversion relation between the illumination and electrical parameters such as voltage, current or power of the lamp. And successively adding the converted duty ratio to the current duty ratio of the power supply driving circuit of the lamp, judging whether the current total illumination is greater than or equal to a first preset illumination after adjusting the current duty ratio of the power supply driving circuit each time, and if so, executing the operation of the step 103. 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.
In other embodiments of the present application, the illuminance of the lamp may also be adjusted according to the current electrical parameter of the lamp, the second unit time length included in the second adjustment rate, and the second adjustment step length. Wherein the second unit time length may be 0.1 second, 0.2 second, etc. The value range 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. 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 supply 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 to obtain a plurality of incremental duty ratios according to the current duty ratio of the power supply driving circuit and a second adjusting step included in a second adjusting speed. 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 second adjusting rate until the total illumination is greater than or equal to the first preset illumination.
The process of increasing the illuminance 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 length included by a second regulating speed; b2: the calculated duty ratio is transmitted to a power supply driving circuit, the current duty ratio is adjusted to the received duty ratio by the power supply driving circuit, electrical parameters such as voltage and current applied to the light source are correspondingly changed after the duty ratio is adjusted, and 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 the step 103, otherwise, 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%. Detecting the current total illumination through the photosensitive sensor, if the current total illumination is still less than the first preset illumination, generating a duty ratio 72% which needs to be adjusted currently according to the current duty ratio 71% and a second adjustment step length 1, transmitting the duty ratio 72% to the power supply driving circuit, adjusting the current duty ratio from 71% to 72% by the power supply driving circuit, detecting the current total illumination through the photosensitive sensor, and if the current total illumination is greater than or equal to the first preset illumination, subsequently executing the operation of the step 103.
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 operation of the step 103. After determining that the illuminance of the lamp is increased to the maximum illuminance of the lamp and the total illuminance is still less than the first preset illuminance, the operation of step 103 may be executed for a preset time period, where the preset time period may be 5 seconds or 10 seconds.
In the first time interval, the illumination of the lamp is adjusted through the operation cycles of steps 103 and 104, so that the total illumination in the illumination range of the lamp is dynamically changed, and in the process that a user works or learns in the illumination range of the lamp, the pupil is expanded or contracted 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.
In order to facilitate understanding of the lighting control method provided in the embodiments of the present application, the following description is made with reference to the accompanying drawings. As shown in fig. 2, S1: and acquiring the current on-time of the lamp and the total illumination in the illumination range of the lamp in real time. S2: and judging whether the current light-on time length is in a first time interval or a second time interval, if the current light-on time length is in the second time interval, executing the step S3, and if the current light-on time length is in the first time interval, executing the step S4. S3: and adjusting the illumination of the lamp so as to keep the total illumination in the illumination range of the lamp within a preset illumination interval. S4: judging whether the total illumination in the illumination range of the lamp is greater than or equal to a first preset illumination and less than or equal to a second preset illumination, if so, executing the step S5, and if not, executing the step S9. S5: and 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 the first regulation speed. S6: and transmitting the calculated duty ratio to a power supply driving circuit, and adjusting the current duty ratio to the received duty ratio by the power supply driving circuit. S7: and judging whether the current total illumination is less than or equal to a second preset illumination, if so, executing the step S9, and if not, executing the step S8. S8: and waiting for the first unit time length and returning to the step S5. S9: and 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 a second regulating speed. S10: and transmitting the calculated duty ratio to a power supply driving circuit, and adjusting the current duty ratio to the received duty ratio by the power supply driving circuit. S11: and judging whether the current total illumination is greater than or equal to a first preset illumination, if so, executing the step S5, and if not, executing the step S12. S12: and waiting for the second unit time length and returning to the step S9.
The embodiment of the application further sets a third preset illumination, wherein the third preset illumination is greater than the first preset illumination, the third preset illumination can be (M0 + 1/2A), 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 regulation rate. If the total illumination is less than the third preset illumination, the illumination of the lamp is adjusted according to the operations of the above steps 102 and 103.
Wherein the third adjustment rate includes a third unit duration and a third adjustment step size, and the third unit duration may be 0.1s, 0.2s, 0.5s, or the like. The value interval of the third adjustment step length may be (0.02, 0.2), for example, the value of the third adjustment step length may be 0.03, 0.05, 0.01, and the like. The specific values of the third unit time length and the third adjustment step length are not limited in the embodiment of the application, and can be determined according to requirements in practical application.
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 self-adaptation ground in the first 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 habit of using the eye, 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.
An embodiment of the present application further provides an illumination control apparatus, configured to perform the illumination control method according to the foregoing embodiment, and as shown in fig. 3, 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 sensor 500 is mounted on the lighting control device within the range covered by the light of the device, and if the lighting control device is a desk lamp, the light sensor 500 may be mounted on the surface of the base of the desk lamp.
The photosensitive sensor 500 is configured to obtain a current lighting time of the light source 400 and a total illumination within an illumination range of the light source 400 in real time, where the total illumination is a 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, and determine that the current lighting-on duration is within a first time interval, where a starting time of the first time interval is a time after a preset duration of lighting of the lamp; controlling the power driving circuit 300 to reduce the illumination of the light source 400 until the total illumination is less than or equal to a second preset illumination according to the total illumination being greater than or equal to a first preset illumination; and controlling the power driving circuit 300 to increase the illumination of the light source 400 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 then performing the operation of decreasing the illumination of the lamp 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 adjustment rate, and the first adjustment step size.
A processor 200 for determining the current duty cycle of the power driving circuit 300 according to the current electrical parameter of the light source 400; calculating to obtain a plurality of descending duty ratios according to the current duty ratio and a first adjusting step included in a first adjusting speed; 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, each interval comprising a first unit duration of time at a first adjustment 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 second adjustment rate, and the second adjustment step length.
A processor 200 for determining the current duty cycle of the power driving circuit 300 according to the current electrical parameter of the light source 400; calculating a plurality of increasing duty ratios according to the current duty ratio and a second adjusting step included in a second adjusting speed; 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 comprised by the second adjustment rate.
The processor 200 is further configured to determine that the current light-on duration is within a second time interval; the illuminance of the light source 400 is adjusted so that the current total illuminance is maintained within the preset illuminance interval.
The processor 200 is further configured to reduce the illumination of the light source 400 through the power driving circuit 300 according to a third adjustment rate according to the total illumination being greater than or equal to a third preset illumination, where the third preset illumination is greater than the first preset illumination; and controlling the light source 400 to be turned off by the power driving circuit 300 according to the illumination of the light source 400 being adjusted to the lowest illumination of the light source 400 and the total illumination still being greater than the standard illumination of the light source 400.
The processor 200 is further configured to increase the illumination of the light source 400 through the power driving circuit 300 according to that the illumination of the light source 400 is decreased to the lowest illumination of the light source 400 and the total illumination is still greater than a second preset illumination; and an operation for lowering the illuminance of the light source 400 through the power driving circuit 300 according to the illuminance of the light source 400 being increased to the maximum illuminance of the light source 400 and the total illuminance being still less than the first preset illuminance.
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. 4, which illustrates a schematic diagram of a lamp according to some embodiments of the present disclosure. As shown in fig. 4, the luminaire 2 includes: 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 equipment provided by the embodiment of the application and the lighting control method provided by the embodiment of the application are based on the same inventive concept, and have the same beneficial effects as the method adopted, operated or realized by the electronic equipment.
Referring to fig. 5, 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.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, 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 (8)

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 duration is within a first time interval, wherein the starting time of the first time interval is the time after the preset lamp-on duration of the lamp;
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 adjusting rate; adjusting electrical parameters of the lamp according to the plurality of descending duty ratios in sequence every first unit time included by the first adjusting rate until the total illumination is less than or equal to a second preset illumination;
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 increasing duty ratios according to the current duty ratio and a second adjusting step included by a second adjusting rate; and adjusting the electrical parameters of the lamp in sequence according to the plurality of increasing duty ratios every second unit time length included by the second adjustment rate until the total illumination is greater than or equal to a first preset illumination, and executing the operation of reducing the illumination of the lamp again.
2. The method of claim 1, further comprising:
determining that the current lamp-on time length is within a second time interval;
and adjusting the illumination of the lamp so as to keep the total illumination within a preset illumination interval.
3. The method of claim 1, 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 adjusting 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.
4. The method of claim 1, further comprising:
and 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 is executed.
5. The method of claim 1, further comprising:
and according to the fact that the illumination of the lamp is adjusted to be 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 is executed.
6. 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 the current lighting-on time of the light source and the total illumination within the illumination range of the light source in real time, wherein 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 lamp-on time of the light source in real time, and determining that the current lamp-on time is within a first time interval, wherein the starting time of the first time interval is the time after the preset lamp-on time; 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 adjusting rate; adjusting electrical parameters of the lamp according to the plurality of descending duty ratios in sequence every first unit time included by the first adjusting rate until the total illumination is less than or equal to a second preset illumination; the current duty ratio of the power supply driving circuit of the lamp is determined according to the current electrical parameters of the lamp; calculating to obtain a plurality of increasing duty ratios according to the current duty ratio and a second adjusting step included by a second adjusting rate; and adjusting the electrical parameters of the lamp according to the plurality of increasing duty ratios in sequence every second unit time included by the second adjustment rate at intervals until the total illumination is greater than or equal to the first preset illumination, and executing the operation of reducing the illumination of the lamp again.
7. A luminaire comprising a memory, a processor and a computer program stored on said memory and executable on said processor, characterized in that said processor executes said computer program to implement the method according to any of the claims 1-5.
8. 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 1-5.
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