CN111712012B - Illumination control method and device, lamp and storage medium - Google Patents
Illumination control method and device, lamp and storage medium Download PDFInfo
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- CN111712012B CN111712012B CN202010496814.4A CN202010496814A CN111712012B CN 111712012 B CN111712012 B CN 111712012B CN 202010496814 A CN202010496814 A CN 202010496814A CN 111712012 B CN111712012 B CN 111712012B
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The application provides a lighting control method, a lighting control device, a lamp and a storage medium, and the lighting control method comprises the following steps: 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 light-on duration is within a first time interval, wherein the first time interval comprises a plurality of time sub-intervals; and dynamically adjusting the illumination of the lamp according to the total illumination and the reduction rate and the improvement rate corresponding to the time subinterval to which the current on-time belongs. The utility model provides an illuminance of dynamic adjustment lamps and lanterns adaptively 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 eye structure can be in the state of relaxing, under the rhythm of the habit of using the eye, position of sitting and study or work that do not influence the user, avoids user's eyes to keep fixed knot structure unchangeable for a long time, protects user's eyesight effectively.
Description
Technical Field
The application relates to the technical field of smart home, in particular 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 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 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 eyes of the user are prevented from keeping a fixed structure for a long time under the condition of not influencing the eye using habit, sitting posture, learning or working rhythm of the user, 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, wherein the first time interval comprises a plurality of time sub-intervals;
and dynamically adjusting the illumination of the lamp according to the total illumination and the reduction rate and the increase rate corresponding to the time subinterval to which the current lamp-on time belongs.
In some embodiments of the present application, dynamically adjusting the illuminance of the lamp according to the total illuminance and the reduction rate and the improvement rate corresponding to the time subinterval to which the current lighting-on time belongs includes:
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 according to the reduction rate corresponding to the time subinterval to which the current lamp-on duration belongs until the total illumination is smaller than or equal to a second preset illumination;
and according to the fact that the total illumination is smaller than or equal to the second preset illumination, increasing the illumination of the lamp according to the increasing rate corresponding to the time subinterval to which the current lighting-on time belongs until the total illumination is larger than or equal to the first preset illumination, and then, reducing the illumination of the lamp according to the reducing rate corresponding to the time subinterval to which the current lighting-on time belongs.
In some embodiments of the present application, dimming the illuminance of the lamp according to the reduction rate corresponding to the time subinterval to which the current lighting-on duration belongs includes:
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 which are included in the reduction rate corresponding to the time subinterval to which the current lamp-on time length belongs.
In some embodiments of the present application, adjusting the illuminance of the lamp according to a first unit duration and a first adjustment step length included in a reduction rate corresponding to a time subinterval to which a current lamp-on duration belongs, where the reduction rate 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 degressive duty ratios according to a first adjusting step length included in a reducing rate corresponding to a time subinterval to which the current duty ratio and the current lighting-on duration belong;
and adjusting the electrical parameters of the lamp in sequence according to a plurality of decreasing duty ratios every first unit time length included by the interval reduction rate.
In some embodiments of the present application, increasing the illuminance of the lamp according to the increasing rate corresponding to the time subinterval to which the current lighting-on duration belongs includes:
and adjusting the illumination of the lamp according to the current electrical parameters of the lamp, the second unit time length and the second adjusting step length which are included in the increasing rate corresponding to the time subinterval to which the current lamp-on time length belongs.
In some embodiments of the present application, adjusting the illuminance of the lamp according to a second unit duration and a second adjustment step length included in the improvement rate corresponding to the time subinterval to which the current lamp-on duration belongs, 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 incremental duty ratios according to a second adjusting step length included in the increasing rate corresponding to the time subinterval to which the current duty ratio and the current lighting-on duration belong;
and adjusting the electrical parameters of the lamp in sequence according to a plurality of increasing duty ratios for a second unit time included at each interval of 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 a second preset illumination, the operation of increasing the illumination of the lamp at the increasing rate corresponding to the time subinterval to which the current lamp-on time belongs is executed;
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 according to the reduction rate corresponding to the time subinterval to which the current lamp-on duration belongs is executed.
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 preset reduction rate, and the third preset illumination is larger than the first preset illumination;
and controlling the lamp to be closed 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, in the plurality of time subintervals, the reduction rate corresponding to the time subinterval with a long lighting-on time is greater than the reduction rate corresponding to the time subinterval with a short lighting-on time;
the increasing rate corresponding to the time subinterval with long lighting-on time is larger than the increasing rate corresponding to the time subinterval with short lighting-on time.
In some embodiments of the present application, the reduction rate corresponding to the time subinterval with the long lamp-on time includes a first adjustment step length that is greater than a first adjustment step length included in the reduction rate corresponding to the time subinterval with the short lamp-on time, and/or the reduction rate corresponding to the time subinterval with the long lamp-on time includes a first unit time length that is less than a first unit time length included in the reduction rate corresponding to the time subinterval with the short lamp-on time;
the second adjusting step length included by the increasing rate corresponding to the time subinterval with the long lamp-on time is larger than the second adjusting step length included by the increasing rate corresponding to the time subinterval with the small lamp-on time, and/or the second unit time length included by the increasing rate corresponding to the time subinterval with the long lamp-on time is smaller than the second unit time length included by the increasing rate corresponding to the time subinterval with the small lamp-on time.
In some embodiments of the present application, the first preset illuminance corresponding to each time subinterval is equal;
the second preset illumination corresponding to the time subinterval with the long lighting-on time is smaller than the second preset illumination corresponding to the time subinterval with the short lighting-on time.
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 total illumination of the environment where the light source is located in real time, and the total illumination is the sum of the illumination of the light source and the environment illumination;
the processor is used for acquiring the current light-on time of the light source in real time; determining that the current lamp-on duration is within a first time interval, wherein the first time interval comprises a plurality of time sub-intervals; and dynamically adjusting the illumination of the light source through the power supply driving circuit according to the total illumination and the reduction rate and the increase rate corresponding to the time subinterval to which the current lighting-on time belongs.
Embodiments of a 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, where the processor executes the computer program to implement the lighting control method provided by the foregoing embodiments.
Embodiments of a fourth aspect of the present application provide a computer-readable storage medium, on which a computer program is stored, the program being executed by a processor to implement the lighting control method provided by the above-mentioned embodiments.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
in the embodiment of the application, the current lamp-on duration of the lamp and the total illumination within the illumination range of the lamp are obtained in real time, wherein the total illumination comprises the ambient illumination and the illumination of the lamp, the illumination of the lamp is dynamically adjusted according to the lamp-on duration and the total illumination of a user, the total illumination within the illumination range of the lamp is continuously changed, the pupil of the user is continuously enlarged or reduced in a manner of adapting to the change of the total illumination, eye structures such as ciliary muscles, pupils, crystalline lenses and the like of the user can be in a relaxed state, and under the condition of not influencing the eye using habit, sitting posture, learning or working rhythm of the user, 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.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
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 of 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, which is used for 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 comprises the ambient illumination and the illumination of the lamp. The first time interval of the illuminance of the lamp needing to be dynamically adjusted is preset, and the first time interval comprises a plurality of time subintervals. And dynamically adjusting the illumination of the lamp according to the current total illumination and the reduction rate and the increase rate corresponding to the time subinterval to which the current lamp-on time belongs. Therefore, the illumination of the lamp is dynamically adjusted, so that the total illumination in the illumination range of the lamp is continuously changed, the pupil of the user is continuously reduced or enlarged along with the change of the total illumination, eye structures such as ciliary muscles, pupils and crystalline lenses of the user are in a relaxed state, the eyes of the user are prevented from keeping a fixed structure 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.
The execution main body of the embodiment of the application is a lamp or a processor installed in the lamp. One or more photosensitive sensors are mounted on the lamp, and each photosensitive sensor is connected with the processor.
The total illumination 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 light of the lamp, the illumination in the illumination range is formed by overlapping the illumination of the lamp and the ambient illumination of the surrounding environment, therefore, the illumination in the illumination range of the lamp is called the total illumination in the embodiment of the application, and the total illumination is the sum of the illumination of the lamp and the ambient illumination.
Furthermore, a timer is preset on a processor of the lamp, and after the lamp is turned on every time, the current on-time duration can be obtained in real time.
Through the step, the current lamp-on time of the lamp and the total illumination within the illumination range of the lamp can be obtained in real time.
Step 102: determining that the current light-on time length is located in a first time interval, wherein the first time interval comprises a plurality of time sub-intervals.
In the embodiment of the application, a first time interval in which the illuminance of the lamp needs to be dynamically adjusted is preset, and the first time interval comprises a plurality of time subintervals. The plurality of time sub-intervals included in the first time interval can be [ Mt1, mt2], [ Mt3, mt4], \8230and [ Mtn1, mtn2], wherein n is greater than or equal to 2, mtn2-Mtn1>10 seconds, and the value interval of Mt1 can be (1min, 60min). In the embodiment of the application, a time period outside the first time interval is set as a second time interval, namely the second time interval comprises [0,Mt1], [ Mt2, mt3], [ 8230 ], [ Mtn-1,Mtn1], wherein the value of (Mtn 1-Mtn-1) can be 3min, 5min, 10min and the like. The embodiment of the application does not limit the specific values of the first time interval and the second time interval, and the specific values can be determined according to the specific use condition of the lamp in practical application. The time span between the starting time and the ending time of each time subinterval included in the first time interval may be equal or unequal, and the time interval between the ending time of the previous time subinterval and the starting time of the next time subinterval in any two adjacent time subintervals may be equal or unequal. The user can set the setting according to the needs.
In one possible implementation, the first time interval includes a plurality of time sub-intervals, and the time span between the start time and the end time of the later time sub-interval is larger, for example, the time span of the first time sub-interval is 1 minute, the time span of the second time sub-interval is 2 minutes, the time span of the third time sub-interval is 5 minutes, and the time span of the later time sub-interval is longer. Therefore, the duration of dynamic adjustment is prolonged along with the time, and the adjustment of the eye physiological structure of the user is facilitated.
After the current lamp-on duration of the lamp is obtained through step 101, it is determined whether the current lamp-on duration is within the first time interval or within the second time interval. And if the current lamp-on time is within the second time interval, adjusting the illumination of the lamp so as to keep the total illumination within the illumination range of the lamp within a 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 illuminance is less than the lower limit value of the preset illuminance interval, the illuminance of the lamp needs to be increased, the current duty ratio of the power supply driving circuit of the lamp is sequentially 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 illuminance is within the preset illuminance interval is judged, and if yes, the operation of adjusting the illuminance 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, continuously reducing the current duty ratio of the power supply driving circuit according to the mode to adjust the illumination of the lamp 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 dynamically adjusting the illumination of the lamp according to the total illumination and the reduction rate and the improvement rate corresponding to the time subinterval to which the current on-time belongs.
Specifically, dynamically adjusting the illuminance of the luminaire includes the following steps S1 and S2.
S1: and 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 according to the reduction rate corresponding to the time subinterval to which the current lamp-on time belongs until the total illumination is smaller than or equal to a second preset illumination.
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 the 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.
In a possible implementation manner, the first preset illuminance corresponding to each time sub-interval is equal, and the second preset illuminance corresponding to the time sub-interval with the long lighting time is smaller than the second preset illuminance corresponding to the time sub-interval with the short lighting time. The second preset illumination corresponding to the later time subinterval is smaller, namely the amplitude of the later total illumination change is larger, and along with the change of the total illumination, the zooming degree of the pupil of the user is increased, so that after the user uses the lamp for a long time, the eyes of the user are actively exercised and have a rest, and the eyesight of the user is effectively maintained.
The method comprises the steps of obtaining the current total illumination within the illumination range of the lamp, determining the time subinterval to which the lamp-on time belongs, comparing the total illumination with the first preset illumination and the second preset illumination corresponding to the determined time subinterval, and if the total illumination is larger than or equal to the first preset illumination, reducing the illumination of the lamp according to the reduction rate corresponding to the time subinterval to which the current lamp-on time belongs until the total illumination is smaller than or equal to the second preset illumination.
The reduction rates corresponding to different time subintervals may be the same or different. And under the condition that the reduction rates corresponding to the time subintervals are different, the reduction rate corresponding to the time subinterval with long lighting-on time is greater than the reduction rate corresponding to the time subinterval with short lighting-on time. Thus, the more backward time subinterval corresponds to a larger reduction rate, and the more backward illuminance is reduced more quickly.
The rate of decrease includes a first unit duration and a first adjustment step size. Specifically, the reduction rate corresponding to the time subinterval with the long lamp-on time is greater than the reduction rate corresponding to the time subinterval with the short lamp-on time, and/or the reduction rate corresponding to the time subinterval with the long lamp-on time includes a first adjustment step length that is greater than a first adjustment step length that is included in the reduction rate corresponding to the time subinterval with the short lamp-on time, and/or the reduction rate corresponding to the time subinterval with the long lamp-on time includes a first unit time length that is less than a first unit time length that is included in the reduction rate corresponding to the time subinterval with the short lamp-on time.
For example, the first adjustment step size corresponding to the first time subinterval is 0.1, the first adjustment step size corresponding to the second time subinterval is 0.2, the first adjustment step size corresponding to the third time subinterval is 0.3, and the first adjustment step size corresponding to the later time subinterval is larger; the first unit time length corresponding to the first time subinterval is 0.3 second, the first unit time length corresponding to the second time subinterval is 0.2 second, the first unit time length corresponding to the third time subinterval is 0.1 second, and the first unit time length corresponding to the later time subinterval is smaller. The embodiment of the application does not limit the values of the first unit duration and the first adjusting step length, and can be determined according to requirements in practical application.
Specifically, the operation of reducing the illumination of the lamp is to adjust the illumination of the lamp according to the current electrical parameters of the lamp, the first unit duration and the first adjustment step length included in the reduction rate corresponding to the time subinterval to which the current on-time belongs, wherein the current electrical parameters of the lamp include the rated voltage, the rated current, the rated power, the current voltage, the current, the current power and the like of the lamp.
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 a first adjusting step length included in a reduction rate corresponding to a time subinterval to which the current duty ratio of the power supply driving circuit and the current light-on duration belong. And adjusting the electrical parameters of the lamp according to the plurality of decreasing duty ratios in sequence every first unit time length included by the interval reduction 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 included in the reduction 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 S2, 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%. 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, executing the operation of the step S2.
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 lowest illumination of the lamp, increasing the illumination of the lamp according to the operation in the step S2. 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 S2 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.
S2: and increasing the illumination of the lamp according to the increasing rate corresponding to the time subinterval to which the current lamp-on time belongs and 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 the step S1 again.
The method comprises the steps of obtaining the current total illumination within the illumination range of the lamp, determining the time subinterval to which the lamp-on time belongs, comparing the total illumination with the first preset illumination and the second preset illumination corresponding to the determined time subinterval, if the total illumination is smaller than or equal to the second preset illumination, increasing the illumination of the lamp according to the increasing rate corresponding to the time subinterval to which the current lamp-on time belongs until the total illumination is larger than or equal to the first preset illumination.
The improvement rates corresponding to different time subintervals are different, and the improvement rate corresponding to the time subinterval with long lighting-on time is greater than that corresponding to the time subinterval with short lighting-on time. Therefore, the increasing rate corresponding to the later time subinterval is larger, and the illuminance is increased faster after the later time subinterval.
The rate of increase includes a second unit duration and a second adjustment step size. The improvement rate corresponding to the time subinterval with the long lighting time is greater than the improvement rate corresponding to the time subinterval with the short lighting time, specifically, the improvement rate corresponding to the time subinterval with the long lighting time includes a second adjustment step length which is greater than a second adjustment step length included in the improvement rate corresponding to the time subinterval with the short lighting time, and/or the improvement rate corresponding to the time subinterval with the long lighting time includes a second unit time length which is less than a second unit time length included in the improvement rate corresponding to the time subinterval with the short lighting time.
For example, the second adjustment step size corresponding to the first time subinterval is 0.1, the second adjustment step size corresponding to the second time subinterval is 0.2, the second adjustment step size corresponding to the third time subinterval is 0.3, and the second adjustment step size corresponding to the later time subinterval is larger; the second unit time length corresponding to the first time subinterval is 0.3 second, the second unit time length corresponding to the second time subinterval is 0.2 second, the second unit time length corresponding to the third time subinterval is 0.1 second, and the second unit time length corresponding to the later time subinterval is smaller. 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.
Specifically, the operation of increasing the illumination of the lamp is to adjust the illumination of the lamp according to the current electrical parameters of the lamp, the second unit time length and the second adjustment step length included in the increase rate corresponding to the time subinterval to which the current on-time length belongs, wherein the current electrical parameters of the lamp include the rated voltage, the rated current, the rated power, the current voltage, the current, the current power and the like of the lamp. The second unit time period 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. 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 a second adjusting step length included in the increasing rate corresponding to the time subinterval to which the current duty ratio of the power supply driving circuit and the current light-on duration belong. And the electrical parameters of the lamp are adjusted according to a plurality of increasing duty ratios in sequence every second unit time length included by the interval increasing 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 included in the increasing rate; 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 S1, 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%. Detecting the current total illumination through a photosensitive sensor, if the current total illumination is still less than a first preset illumination, generating a duty ratio 72% which needs to be adjusted currently according to a current duty ratio of 71% and a second adjusting step length 1, transmitting the duty ratio 72% to a 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 S1.
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 S1. After it is determined that the illuminance of the lamp is adjusted to the maximum illuminance of the lamp and the total illuminance is still less than the first preset illuminance, the operation of step S1 may be executed for a preset time period, where the preset time period may be 5 seconds or 10 seconds.
The illumination of the lamp is adjusted through the operation cycle of step 103, so that the total illumination within the illumination range of the lamp dynamically changes, and when a user works or learns within the illumination range of the lamp, the pupil expands or contracts along with the change of the total illumination, so that the eye structures such as ciliary muscles, pupils and crystalline lenses of the user are in a relaxed state, and the eyesight of the user is effectively protected.
At any time after the lamp is started, the illumination of the lamp can be reduced at a preset reduction rate according to the fact that the total illumination is larger than or equal to a third preset illumination, and the third preset illumination is larger than the first preset illumination; and controlling the lamp to be closed 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.
Specifically, the embodiment of the present application further sets a third preset illumination, where the third preset illumination is greater than the first preset illumination, and the third preset illumination may be (M0 + 1/2A), where M0 is a standard illumination of the lamp, a is a preset coefficient, and a 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 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 preset reduction rate. If the total illumination is less than the third preset illumination, the illumination of the lamp is adjusted according to the operations of steps 102 and 103.
The preset reduction rate includes a third unit duration and a third adjustment step length, and the third unit duration may be 0.1s, 0.2s, or 0.5s, and 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 large, and the lamp is controlled to be turned off.
In order to facilitate understanding of the illumination 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, step M1, obtaining the total illumination and the current on-time in the illumination range of the lamp in real time. And step M2, judging whether the light-on time is in the first time interval or the second time interval, executing the step M3 when the light-on time is in the second time interval, and executing the step M4 when the light-on time is in the first time interval. And M3, adjusting the illumination of the lamp so as to keep the total illumination within a preset illumination interval. And step M4, judging whether the total illumination is greater than or equal to a first preset illumination and is less than or equal to a second preset illumination, executing the step M5 when the total illumination is greater than or equal to the first preset illumination, and executing the step M9 when the total illumination is less than or equal to the second preset illumination. And M5, calculating the current duty ratio required to be adjusted according to the current duty ratio of the power driving circuit and the first adjusting step included in the reduction rate corresponding to the time subinterval. And step M6, 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. And step M7, judging whether the current total illumination is less than or equal to a second preset illumination, if so, executing step M9, and if not, executing step M8. And step M8, waiting for the first unit time length, and returning to execute the step M5. And M9, calculating the current duty ratio required to be adjusted according to the current duty ratio of the power driving circuit and a second adjusting step included in the increasing rate corresponding to the time subinterval. And step M10, 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. Step M11, determining whether the current total illumination is greater than or equal to a first preset illumination, if so, performing step M5, and if not, performing step M12. And step M12, waiting for the second unit time length, and returning to execute the step M9.
Based on the embodiment of the application, the current lamp-on time of the lamp and the total illumination within the illumination range of the lamp are obtained in real time. And when the current lamp-on duration is within the second time interval, adjusting the illumination of the lamp so as to keep the total illumination within a preset illumination interval. When the current lamp-on duration is within the first time interval, the illumination of the lamp is dynamically adjusted according to the current total illumination and the reduction rate and the improvement rate corresponding to the time sub-interval to which the current lamp-on duration belongs, so that the total illumination superposed by the illumination of the lamp and the ambient illumination within the illumination range of the lamp is continuously changed, the pupil of the user is continuously enlarged or reduced in adaptation to the change of the total illumination, eye structures such as ciliary muscles, pupils and crystalline lenses of the user can be in a relaxed state, and under the condition that the eye using habit, sitting posture, learning or working rhythm of the user is 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 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 pendant 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 photosensor 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 time of the light source 400 in real time; determining that the current light-on duration is within a first time interval, wherein the first time interval comprises a plurality of time sub-intervals; and dynamically adjusting the total illumination of the light source 400 through the power driving circuit 300 according to the total illumination and the reduction rate and the improvement rate corresponding to the time subinterval to which the current lighting-on time belongs.
The processor 200 is configured to reduce the illuminance of the light source 400 through the power driving circuit 300 according to a reduction rate corresponding to the time subinterval to which the current lighting-on duration belongs, until the total illuminance is less than or equal to a second preset illuminance; and the operation of increasing the illumination of the light source 400 through the power driving circuit 300 according to the increasing rate corresponding to the time subinterval to which the current lighting-on time belongs until the total illumination is greater than or equal to the first preset illumination, and decreasing the illumination of the light source 400 through the power driving circuit 300 again according to the decreasing rate corresponding to the time subinterval to which the current lighting-on time belongs is performed.
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 and a first unit time length and a first adjustment step length included in the reduction rate corresponding to the time subinterval to which the current lamp-on time length belongs.
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; the method comprises the steps of calculating to obtain a plurality of degressive duty ratios according to a first adjusting step length included in a reduction rate corresponding to a time subinterval to which a current duty ratio and a current light-on duration belong; the electrical parameters of the light source 400 are adjusted by the power driver circuit 300 in sequence according to a plurality of decreasing duty cycles for a first unit of time included at the interval 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 and the second unit time length and the second adjustment step length included in the improvement rate corresponding to the time subinterval to which the current lamp-on time length belongs.
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; the method comprises the steps of calculating to obtain a plurality of incremental duty ratios according to a second adjusting step length included in the increasing rate corresponding to the time subinterval to which the current duty ratio and the current light-on duration belong; the electrical parameters of the light source 400 are adjusted by the power driver circuit 300 in sequence according to a plurality of increasing duty cycles for a second unit of time included at the interval increase rate.
The processor 200 is configured to perform an operation of increasing the illuminance of the light source 400 at an increasing rate corresponding to the time subinterval to which the current lighting-on time belongs according to the fact that the illuminance of the light source 400 is decreased to the lowest illuminance of the lamp and the total illuminance is still greater than a second preset illuminance; and the operation of decreasing the illuminance of the light source 400 by the power driving circuit 300 according to the reduction rate corresponding to the time subinterval to which the current lighting-on time belongs according to the illuminance of the light source 400 which is increased to the maximum illuminance of the lamp and the total illuminance is still less than the first preset illuminance.
A processor 200, configured to determine that the current light-on duration is within a second 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.
A processor 200 configured to reduce the illuminance of the light source 400 according to a preset reduction rate 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; for controlling the light source 400 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.
A processor 200, configured to make a reduction rate corresponding to a time sub-interval with a long lighting-on time larger than a reduction rate corresponding to a time sub-interval with a short lighting-on time in a plurality of time sub-intervals; the increasing rate corresponding to the time subinterval with long lighting-on time is larger than the increasing rate corresponding to the time subinterval with short lighting-on time.
A processor 200, configured to enable a first adjustment step included in the reduction rate corresponding to the time subinterval with the long lighting-on time to be greater than a first adjustment step included in the reduction rate corresponding to the time subinterval with the short lighting-on time, and/or enable a first unit time length included in the reduction rate corresponding to the time subinterval with the long lighting-on time to be less than a first unit time length included in the reduction rate corresponding to the time subinterval with the short lighting-on time; and/or the second unit time length included by the improvement rate corresponding to the time subinterval with the large lamp-on time is smaller than the second unit time length included by the improvement rate corresponding to the time subinterval with the small lamp-on time.
A processor 200, configured to equalize first preset illumination intensities corresponding to each time subinterval; and enabling the second preset illumination corresponding to the time subinterval with the long lamp-on time to be smaller than the second preset illumination corresponding to the time subinterval with the short lamp-on time.
The lighting control 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 those of the lighting control device adopted, operated or realized by the same inventive concept.
The embodiment of the present application further provides a lamp corresponding to the lighting control method provided in the foregoing embodiment, so as to execute the lighting control method.
Please refer to fig. 4, which illustrates a schematic diagram of a lamp provided in some embodiments of the present application. 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 in any of the foregoing embodiments when executing the computer program.
The memory 201 may include a high-speed Random Access Memory (RAM) and may further include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 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.
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 modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in 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 lamp 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 lamp.
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.
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 (12)
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 light-on duration is within a first time interval, wherein the first time interval comprises a plurality of time sub-intervals;
according to the fact that the total illumination is larger than or equal to a first preset illumination, the illumination of the lamp is adjusted according to the current electrical parameters of the lamp, a first unit time length and a first adjusting step length which are included in a reduction rate corresponding to a time subinterval to which the current lamp-on time length belongs, and the total illumination is smaller than or equal to a second preset illumination;
and regulating the illumination of the lamp according to the current electrical parameters of the lamp, the second unit time length included in the increasing rate corresponding to the time subinterval to which the current on-lamp time belongs and a second regulating step length according to the second preset illumination or less, 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 according to the reducing rate corresponding to the time subinterval to which the current on-lamp time belongs.
2. The method according to claim 1, wherein the adjusting the illuminance of the lamp according to the current electrical parameter of the lamp, the first unit time length included in the reduction rate corresponding to the time subinterval to which the current on-time duration belongs, 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 to obtain a plurality of degressive duty ratios according to a first adjusting step length included in a reduction rate corresponding to the current duty ratio and the time subinterval to which the current lighting-on time belongs;
and adjusting the electrical parameters of the lamp in sequence according to the plurality of decreasing duty cycles every first unit duration included by the reduction rate.
3. The method according to claim 1, wherein the adjusting the illuminance of the lamp according to the current electrical parameter of the lamp, the second unit time length included in the increasing rate corresponding to the time subinterval to which the current on-time duration belongs, 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 to obtain a plurality of incremental duty ratios according to a second adjusting step length included in the increasing rate corresponding to the current duty ratio and the time subinterval to which the current lighting-on time belongs;
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 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 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 increasing rate corresponding to the time subinterval to which the current lamp-on time belongs is executed;
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, executing the operation of reducing the illumination of the lamp according to the reduction rate corresponding to the time subinterval to which the current lamp-on duration belongs.
5. The method according to any one of claims 1-3, further comprising:
determining that the current lamp-on duration 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.
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 at a preset 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. The method according to any one of claims 1 to 3,
in the plurality of time subintervals, the reduction rate corresponding to the time subintervals with long lighting-on time is greater than the reduction rate corresponding to the time subintervals with short lighting-on time;
the increasing rate corresponding to the time subinterval with long lighting-on time is larger than the increasing rate corresponding to the time subinterval with short lighting-on time.
8. The method of claim 7,
the first adjusting step length included by the reducing rate corresponding to the time subinterval with the long lighting-on time is greater than the first adjusting step length included by the reducing rate corresponding to the time subinterval with the short lighting-on time, and/or the first unit time length included by the reducing rate corresponding to the time subinterval with the long lighting-on time is less than the first unit time length included by the reducing rate corresponding to the time subinterval with the short lighting-on time;
the second adjusting step length included by the improving rate corresponding to the time subinterval with the long lamp-on time is larger than the second adjusting step length included by the improving rate corresponding to the time subinterval with the short lamp-on time, and/or the second unit time length included by the improving rate corresponding to the time subinterval with the long lamp-on time is smaller than the second unit time length included by the improving rate corresponding to the time subinterval with the short lamp-on time.
9. The method according to any one of claims 2 or 3,
the first preset illumination corresponding to each time subinterval is equal;
the second preset illumination corresponding to the time subinterval with the long lighting-on time is smaller than the second preset illumination corresponding to the time subinterval with the short lighting-on time.
10. 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 total illumination of the environment where the light source is located in real time, and the total illumination is the sum of the illumination of the light source and the environment illumination;
the processor is used for acquiring the current lamp-on time of the light source in real time; determining that the current light-on duration is within a first time interval, wherein the first time interval comprises a plurality of time sub-intervals; 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 which are included in the reduction rate corresponding to the time subinterval to which the current on-state time belongs and the current electrical parameters of the lamp until the total illumination is less than or equal to the second preset illumination; and the controller is used for adjusting the illumination of the lamp according to the current electrical parameter of the lamp, the second unit time length and the second adjustment step length which are included in the improvement rate corresponding to the time subinterval to which the current lamp-on time length belongs, and 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 according to the reduction rate corresponding to the time subinterval to which the current lamp-on time length belongs.
11. 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 1-9.
12. 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 1-9.
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| CN104538005A (en) * | 2014-12-16 | 2015-04-22 | 深圳市金立通信设备有限公司 | Method for adjusting screen brightness |
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