CN116723600A - LED illumination output control method and system - Google Patents

LED illumination output control method and system Download PDF

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Publication number
CN116723600A
CN116723600A CN202310666072.9A CN202310666072A CN116723600A CN 116723600 A CN116723600 A CN 116723600A CN 202310666072 A CN202310666072 A CN 202310666072A CN 116723600 A CN116723600 A CN 116723600A
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China
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led
led lamp
lamp beads
illuminance
working
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Chinese (zh)
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黄彦铭
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Shenzhen Lm Photoelectric Technology Co ltd
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Shenzhen Lm Photoelectric Technology Co ltd
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Priority to CN202310666072.9A priority Critical patent/CN116723600A/en
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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]
    • H05B45/10—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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • 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 relates to the technical field of illumination control, in particular to a control method and a system for LED illumination output; according to the LED lamp provided by the application, when the LED works, the LED light signals collected by the illuminance sensor and reflected by the lampshade are used as an illuminance measuring source, so that the illuminance of the LED court lamp is measured, then when the measured value is lower than the preset constant illuminance target value, the LED lamp beads are started, so that the total number of the LED lamp beads is increased, the rated power of each LED lamp bead is not increased on the premise that the total rated power is unchanged, the brightness is increased, the light efficiency of the LED lamp beads is improved, the stable illuminance output of the LED court lamp is achieved, the service life of the LED is prolonged, and a more stable illumination effect is obtained.

Description

LED illumination output control method and system
Technical Field
The application relates to the technical field of illumination control, in particular to a control method and a system for LED illumination output.
Background
Because LEDs have the advantages of long service life, energy conservation, high reliability, light adjustment and the like, the LED industry is valued and developed rapidly by countries around the world. LED lighting is a very important part of the LED industry, and is also the most proximate part of life, and the design of the illuminance output of LEDs is an important part of LED lighting.
The LED can generate light attenuation problem in the use process. With the generation of light decay, the luminous flux of the whole LED court lamp can be reduced, and the illumination is reduced, so that the luminous brightness of the LED illuminating lamp can be reduced under the condition of maintaining the original driving power.
At present, on an LED court lamp, the method for coping with LED light attenuation mainly comprises the steps of adjusting the whole lamp power of the court lamp in a PWM or 0-10V dimming mode to ensure constant output of illuminance, but the main factor influencing the LED lamp to generate light attenuation is junction temperature (the temperature of a PN junction of a semiconductor), and the higher the junction temperature is, the faster the light attenuation speed is in the use process of the LED. When the whole lamp power is improved, the rated power of the LED lamp beads is improved, the junction temperature of the LEDs is increased, the light decay of the LEDs is accelerated, the service life of the lamp is rapidly ended, and the situation needs to be further improved.
Disclosure of Invention
In order to solve the problem that the illuminance of the existing LED court lamp is reduced in the use process, the application provides a control method and a system for LED illuminance output, which adopts the following technical scheme:
a control method of LED illumination output comprises the following steps:
when the LED works, an LED light signal which is collected by the illuminance sensor and reflected by the lampshade is used as an illuminance measuring source, and the illuminance measuring source is detected to obtain a measured value;
and when the measured value is lower than a preset constant illuminance target value, starting the LED lamp beads under the condition that the total rated power is unchanged, wherein the LED lamp beads are not started in the LEDs.
By adopting the technical scheme, when the LED works, the LED light signals collected by the illuminance sensor and reflected by the lampshade are used as an illuminance measuring source, so that the illuminance of the LED is measured, then when the measured value is lower than the preset constant illuminance target value, the LED lamp beads are started, the number of the LED lamp beads is increased, and on the premise that the total rated power is unchanged, the rated power of each LED lamp bead is not increased, the brightness is increased, the light efficiency of the LED lamp beads is improved, the stable illuminance output of the LED court lamp is achieved, the service life of the LED is prolonged, and the more stable lighting effect is obtained.
Optionally, when the measured value is lower than a preset constant illuminance target value, under the condition that the total rated power is unchanged, the process of starting the LED lamp bead includes the following steps:
determining the actual working power of the LED according to the difference value between the measured value and the preset constant illuminance target value;
determining the working power to be supplemented according to the actual working power and the total rated working power;
determining the number of LED lamp beads to be compensated according to the working power to be supplemented and the rated working power of each LED lamp bead;
and starting the LED lamp beads to be compensated.
By adopting the technical scheme, the application determines the actual working power of the LEDs according to the difference between the measured value and the preset constant illumination target value, determines the working power to be supplemented according to the actual working power and the total rated working power, then determines the number of the LED lamp beads to be compensated according to the working power to be supplemented and the rated working power of each LED lamp bead, and finally starts the LED lamp beads to be compensated to realize illumination compensation.
Optionally, the LEDs are divided into a working area and an illuminance compensation area, where the illuminance compensation area has M-level LED beads, and when the LEDs start to work, the LED beads in the working area are started, and the LED beads in each level of the illuminance compensation area are connected in parallel and have independent switches;
detecting the illumination of the LEDs at preset time intervals when the LEDs work, and starting one-stage LED lamp beads when continuous N times of measured values are lower than a preset constant illumination target value, wherein N is an integer greater than or equal to 1, and the one-stage LED lamp beads are any one stage of the multi-stage LED lamp beads in the illumination compensation area or the LED lamp beads closest to the currently-working LED lamp beads in the multi-stage LED lamp beads in the illumination compensation area.
By adopting the technical scheme, the LED is divided into the working area and the illumination compensation area, the illumination compensation area is provided with the M-level LED lamp beads, wherein when the LED starts to work, the LED lamp beads in the working area are mutually connected in parallel and are provided with independent switches, the illumination of the LED is detected through the preset time length at each interval, and when the continuous multiple measured value is lower than the preset constant illumination target value, the first-level LED lamp beads are started, so that the number of the LED lamp beads can enable the court lamp to maintain stable illumination under the condition that the total rated power is unchanged, and a more stable illumination effect is obtained.
Optionally, the working area and the LED lamp beads of the illuminance compensation area are dynamically changed, when the working frequency of the working area reaches the preset working frequency, a part of LED lamp beads of the working area are added into the illuminance compensation area, a corresponding number of LED lamp beads of the illuminance compensation area are added into the working area, the working frequency is recalculated, wherein the working time after the LED is started reaches the preset minimum working time is defined as one starting, and the part of LED lamp beads are LED lamp beads with the working frequency reaching the preset working frequency.
By adopting the technical scheme, the LED lamp beads in the working area and the illumination compensation area are dynamically changed, when the working times of the working area reach the preset working times, part of the LED lamp beads in the working area are added into the illumination compensation area, the corresponding number of the LED lamp beads in the illumination compensation area are added into the working area, and the working times are recalculated, so that the problem that the LED lamp beads in the working area are frequently used and the resources of the LED lamp beads in the illumination compensation area are wasted is solved.
Optionally, the working area and the LED lamp beads of the illuminance compensation area are dynamically changed, when the working time of the working area reaches the preset working time, part of the LED lamp beads of the working area are added into the illuminance compensation area, the corresponding number of LED lamp beads of the illuminance compensation area are added into the working area, and the working time is recalculated, wherein the part of LED lamp beads are LED lamp beads with the working time reaching the preset working time.
By adopting the technical scheme, when the working time of the working area is very few, but the working time of each time is very long, the problem that the LED lamp beads of the working area are damaged easily occurs is solved, so that when the working time of the working area reaches the preset working time, part of the LED lamp beads of the working area are added into the illuminance compensation area, the corresponding number of the LED lamp beads of the illuminance compensation area are added into the working area, and the working time is recalculated, thereby compensating the limitation that the working area is switched only by the working time.
Optionally, the circuitry of the illuminance sensor incorporates a negative temperature coefficient thermistor.
By adopting the technical scheme, the negative temperature coefficient thermistor is arranged on the circuit of the illuminance sensor, so that the circuit is compensated, and the measurement error of the sensor caused by drift due to the influence of temperature is reduced.
Optionally, the method further comprises:
gradually adding LED lamp beads of the illuminance compensation area into the working area along with the increase of the service life of the LED court lamp;
when all the LED lamp beads are added into the working area, the LEDs are controlled to be started in a slow gradual change mode when started so as to remind a user that the service life of the LEDs is prolonged.
By adopting the technical scheme, the LED lamp beads in the illuminance compensation area are gradually added into the working area along with the increase of the service life of the LED court lamp; when all the LED lamp beads are added into the working area, the LEDs are controlled to be started in a slow gradual change mode when started so as to remind a user that the LEDs exceed the service life, and accordingly replacement is carried out in time so as to save resources.
In a second aspect, the present application provides a control system for LED illumination output, comprising:
the detection module is used for taking the LED light signals collected by the illuminance sensor and reflected by the lampshade as an illuminance measurement source when the LEDs work, and detecting the illuminance measurement source to obtain a measured value;
the starting module is used for starting the LED lamp beads under the condition that the total rated power is unchanged when the measured value is lower than a preset constant illuminance target value, wherein the LED lamp beads are not started in the LEDs.
In a third aspect, the present application provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the above-described method of controlling LED illumination output when executing the computer program.
In a fourth aspect, the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described method of controlling LED illumination output.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the LED lamp provided by the application, when the LEDs work, the LED light signals collected by the illuminance sensor and reflected by the lampshade are used as an illuminance measuring source, so that the illuminance of the LED court lamp is measured, then when the measured value is lower than a preset constant illuminance target value, the LED lamp beads are started step by step, so that the total number of the LED lamp beads is increased, and on the premise that the total rated power is unchanged, the rated power of each LED lamp bead is not increased, so that the brightness is increased, the light efficiency of the LED lamp beads is improved, the stable illuminance output of the LED court lamp is achieved, the service life of the LED is prolonged, and a more stable lighting effect is obtained;
2. according to the application, the LED lamp beads in the working area and the illuminance compensation area are dynamically changed, so that the problem that the LED lamp beads in the working area are frequently used and the resource of the LED lamp beads in the illuminance compensation area is wasted is solved.
Drawings
FIG. 1 is an exemplary flow chart of a constant LED illumination output in the related art;
FIG. 2 is a first exemplary flow chart of a method of controlling LED illumination output according to an embodiment of the present application;
FIG. 3 is an exemplary circuit diagram of a system to which an LED illumination output control method according to an embodiment of the present application is applied;
FIG. 4 is a second exemplary flow chart of a method for LED illumination output control according to an embodiment of the present application;
FIG. 5 is a third exemplary flow chart of a method of controlling LED illumination output according to an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating an understanding of an embodiment of the present application;
FIG. 7 is a fourth exemplary flow chart of a method of controlling LED illumination output according to an embodiment of the present application;
FIG. 8 is a fifth exemplary flow chart of a method of controlling LED illumination output according to an embodiment of the present application;
FIG. 9 is a block diagram of a control system for LED illumination output according to the present application;
fig. 10 is an internal block diagram of a computer device of the present application.
Detailed Description
The terminology used in the following embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It should also be understood that the term "and/or" as used in this disclosure is intended to encompass any or all possible combinations of one or more of the listed items.
The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature, and in the description of embodiments of the application, unless otherwise indicated, the meaning of "a plurality" is two or more.
The problem of light attenuation in the use process of the LED is an important factor influencing the illuminance output of the LED. In the related art, the constant output of illumination is ensured by mainly adjusting the power of the whole court lamp in a PWN or 0-10V dimming mode. Referring to fig. 1, fig. 1 is an exemplary flow chart of LED constant illuminance output in the related art. In the related art, the measured value is obtained by detecting the illuminance of the LED court lamp, and the output power of the whole LED court lamp is increased step by step under the condition that the measured value is lower than a threshold value, so that the constant output of the illuminance is ensured.
However, when the whole power of the LED is improved, the rated power of each LED lamp bead is also improved, the junction temperature of the LED is increased, the light decay of the LED is accelerated, and the service life of the lamp is shortened.
Because the LED court lamp is provided with a plurality of LED lamp beads, the application provides the control method and the system for the LED illumination output aiming at the LED court lamp, and the LED court lamp can achieve the stable illumination output under the condition of constant total rated power, so that the service life of the LED is prolonged, and a more stable illumination effect is obtained.
Referring to fig. 2, fig. 2 is a first exemplary flowchart of a method for controlling LED illuminance output according to an embodiment of the present application.
A control method of LED illumination output comprises the following steps:
s210, when the LEDs work, the LED light signals collected by the illuminance sensor are used as an illuminance measuring source, and the illuminance measuring source is detected to obtain a measured value.
The illuminance sensor is a photoelectric sensing element (photoresistor/photodiode/photocell). The illuminance sensor is solidified on the LED light source plate and forms a parallel relation with the lamp beads, so that the LED light signals collected by the illuminance sensor are light rays reflected by the lampshade instead of the LED direct irradiation, and the problem that the illuminance sensor is saturated and the accuracy is reduced due to the fact that the light intensity of the LED is too strong is avoided. The LED court lamp to different powers can adopt the illuminance sensor of different models, also can increase suitable lens hood in photoelectric sensing element anterior segment in order to reduce the light intensity and guarantee the working interval of sensor.
In some embodiments, the circuit of the illuminance sensor introduces a thermistor with a negative temperature coefficient, so as to compensate the circuit and reduce measurement errors of the sensor caused by drift due to temperature influence.
S220, when the measured value is lower than a preset constant illuminance target value, starting the LED lamp beads under the condition that the total rated power is unchanged.
The LED lamp beads are not started in the LEDs; and when the primary LED lamp beads are started, the total number of the LED lamp beads in operation is gradually increased.
In order to ensure the accuracy of detection, in one embodiment, the illuminance of the LED is detected every preset time interval when the LED works, and when N continuous measured values are lower than a preset constant illuminance target value, a first-stage LED lamp bead is started, wherein N is more than or equal to 3, and the first-stage LED lamp bead is any one stage of multi-stage LED lamp beads in an illuminance compensation area or is the LED lamp bead with the closest distance to the currently working LED lamp bead in the multi-stage LED lamp beads in the illuminance compensation area.
The following describes a control flow of an LED illuminance output control method according to an embodiment of the present application in conjunction with a system circuit diagram to which the LED illuminance output control method according to an embodiment of the present application is applied.
Referring to fig. 3 and 4, fig. 3 is an exemplary circuit diagram of a system to which an LED illuminance output control method according to an embodiment of the present application is applied; fig. 4 is a second exemplary flowchart of a method for controlling LED illuminance output according to an embodiment of the present application.
As shown in fig. 3, the system comprises a court lamp constant current power supply, a court lamp circuit and an MCU, wherein the court lamp constant current power supply is connected with the court lamp circuit and used for providing power, and the MCU is connected with the court lamp circuit and used for controlling the court lamp circuit to start the LED lamp beads step by step.
The court lamp circuit comprises a working area and an illumination compensation area, wherein the illumination compensation area is provided with M-level LED lamp beads, all levels of LED lamp beads are mutually connected in parallel and are provided with independent switches, and M is more than or equal to 3. In the embodiment, m=3, three-level LED beads are controlled by switches K1, K2 and K3 respectively, an illuminance sensor is connected with an MCU for collecting illuminance of a court lamp and transmitting the illuminance to the MCU, the MCU receives the illuminance, obtains a measured value through analog-to-digital conversion, compares the measured value with a preset constant illuminance target value stored in the EEPROM, and then controls actions of the switches K1, K2 and K3 through input and output ports; in addition, the MCU is provided with a reset switch for resetting.
As shown in fig. 4, when the LED court lamp starts to work, the LED court lamp is powered on and then continuously works, the MCU acquires the current illuminance value, reads the preset constant illuminance target value stored in the EEPROM, calculates the light decay condition, and then controls the light decay compensation circuit according to the program control logic, when the light decay is 0, the LED lamp beads of the LED court lamp working area work; when the light attenuation is between 1 and 10 percent, controlling K1 to be closed; when the light attenuation is between 11 and 20 percent, K1 and K2 are controlled to be closed; when the light attenuation is between 21 and 30 percent, K1, K2 and K3 are controlled to be closed; thereby realizing the stable illumination output of the LED court lamp.
In the above embodiment, when the LED works, the LED light signal collected by the illuminance sensor and reflected by the lampshade is used as an illuminance measurement source, so as to measure the illuminance of the LED court lamp, and then when the measured value is lower than the preset constant illuminance target value, the LED lamp beads are started step by step, so that the total number of LED lamp beads is increased, and thus the rated power of each LED lamp bead is not increased to increase the brightness on the premise that the total rated power is unchanged, the light efficiency of the LED lamp bead is improved, the stable illuminance output of the LED court lamp is achieved, the service life of the LED is prolonged, and a more stable illumination effect is obtained. However, the LED lamp beads in the working area are easy to damage because the LED lamp beads in the working area work when each time is started. Therefore, in some embodiments, the LED lamp beads of the working area and the illumination compensation area are set to be dynamically changed, so that the problem of resource waste of the LED lamp beads of the working area is prevented.
In some embodiments, each LED light bead may be connected to a control switch, and the actual operating power of the LED is determined according to the difference between the measured value and the preset constant illuminance target value; determining the working power to be supplemented according to the actual working power and the total rated working power; and then determining the quantity of the LED lamp beads to be compensated according to the working power to be supplemented and the rated working power of each LED lamp bead, and starting the LED lamp beads to be compensated.
Referring to fig. 5, fig. 5 is a third exemplary flowchart of a method for controlling LED illumination output according to an embodiment of the present application.
The LED illumination output control method further comprises the following steps:
s510, acquiring the working times of the working area.
S520, judging whether the working times of the working area reach the preset working times.
The preset working times are 5 times, and the time when the working time reaches the preset minimum working time after the LED is started is defined as one time of starting.
When the determination is yes, S530 is performed;
s530, adding part of LED lamp beads in the working area into the illuminance compensation area, and adding the corresponding number of LED lamp beads in the illuminance compensation area into the working area.
Wherein, partial LED lamp beads are LED lamp beads with the working times reaching the preset working times.
S540, recalculating the working times.
Referring to fig. 6, a schematic diagram is shown for an understanding of an embodiment of the present application.
The difference from fig. 4 is that the MCU of this embodiment is provided with a counter, the LED lamp bead groups of the working area and the illuminance compensation area are both provided with a switch, and the working area and the illuminance compensation area are dynamically changed.
Referring to fig. 7, fig. 7 is a fourth exemplary flowchart of a method for controlling LED illumination output according to an embodiment of the present application.
S710, acquiring the working time of the working area.
S720, judging whether the working time of the working area reaches the preset working time.
Wherein the preset working time is 40 hours.
When the determination is yes, S730 is performed;
and S730, adding part of LED lamp beads in the working area into the illuminance compensation area, and adding the corresponding number of LED lamp beads in the illuminance compensation area into the working area.
Wherein, part of the LED lamp beads are the LED lamp beads with the working time reaching the preset working time.
S740, recalculating the working time.
The MCU of this embodiment is provided with the time-recorder, and the LED lamp pearl group of workspace and illuminance compensation district all is provided with the switch, and workspace and illuminance compensation district are dynamic change.
In some embodiments, the working area and the illumination compensation area may be switched by combining the number of times of working and the length of working.
Referring to fig. 8, a fifth exemplary flowchart of a method for controlling LED illumination output according to an embodiment of the present application is shown.
Optionally, in some embodiments, the method further comprises:
s810, gradually adding LED lamp beads of the illuminance compensation area into the working area along with the increase of the service life of the LED court lamp.
S820, when all the LED lamp beads are added into the working area, the LEDs are controlled to be started in a slow gradual change mode when being started, so that a user is reminded that the service life of the LEDs is prolonged.
With the increase of the service life of the LED court lamp, LED lamp beads in the illuminance compensation area are gradually added into the working area; when all the LED lamp beads are added into the working area, the LEDs are controlled to be started in a slow gradual change mode when started so as to remind a user that the LEDs exceed the service life, and accordingly replacement is carried out in time so as to save resources.
The implementation principle of the control system for LED illumination output in the embodiment of the application is as follows: according to the LED lamp provided by the application, when the LEDs work, the LED light signals collected by the illuminance sensor and reflected by the lampshade are used as an illuminance measuring source, so that the illuminance of the LED court lamp is measured, then when the measured value is lower than a preset constant illuminance target value, the LED lamp beads are started step by step, so that the total number of the LED lamp beads is increased, and on the premise that the total rated power is unchanged, the rated power of each LED lamp bead is not increased, so that the brightness is increased, the light efficiency of the LED lamp beads is improved, the stable illuminance output of the LED court lamp is achieved, the service life of the LED is prolonged, and a more stable lighting effect is obtained; the LED lamp beads in the working area and the illumination compensation area are dynamically changed, so that the problem that the LED lamp beads in the working area are frequently used and the resource of the LED lamp beads in the illumination compensation area is wasted is solved.
In a second aspect, the present application provides a control system for LED illuminance output, and the control system for LED illuminance output of the present application is described below with reference to the above control method for LED illuminance output. Referring to fig. 9, fig. 9 is a schematic block diagram of a control system for LED illumination output according to the present application.
A control system for LED illumination output, comprising:
the detection module is used for taking the LED light signals collected by the illuminance sensor and reflected by the lampshade as an illuminance measurement source when the LEDs work, and detecting the illuminance measurement source to obtain a measured value;
the starting module is used for starting the LED lamp beads step by step under the condition that the total rated power is unchanged when the measured value is lower than the preset constant illuminance target value, wherein the total LED lamp beads in operation are gradually increased when the primary LED lamp beads are started.
In one embodiment, the present application provides a computer device, which may be a server, whose internal structure may be as shown in fig. 10. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is for storing data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program, when executed by a processor, implements a method of controlling the illumination output of an LED.
It will be appreciated by those skilled in the art that the structure shown in FIG. 10 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In an embodiment, there is also provided a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.
Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. The LED illumination output control method is characterized by comprising the following steps of:
when the LED works, an LED light signal which is collected by the illuminance sensor and reflected by the lampshade is used as an illuminance measuring source, and the illuminance measuring source is detected to obtain a measured value;
and when the measured value is lower than a preset constant illuminance target value, starting the LED lamp beads under the condition that the total rated power is unchanged, wherein the LED lamp beads are not started in the LEDs.
2. The method for controlling LED illumination output according to claim 1, wherein when the measured value is lower than a preset constant illumination target value, the process of starting the LED lamp beads under the condition that the total rated power is unchanged comprises the following steps:
determining the actual working power of the LED according to the difference value between the measured value and the preset constant illuminance target value;
determining the working power to be supplemented according to the actual working power and the total rated working power;
determining the number of LED lamp beads to be compensated according to the working power to be supplemented and the rated working power of each LED lamp bead;
and starting the LED lamp beads to be compensated.
3. The method for controlling the illuminance output of an LED of claim 1 wherein: the LED is divided into a working area and an illumination compensation area, the illumination compensation area is provided with M-level LED lamp beads, wherein when the LED starts to work, the LED lamp beads of the working area are started, and all levels of LED lamp beads of the illumination compensation area are connected in parallel and are provided with independent switches; wherein M is an integer greater than or equal to 1;
detecting the illumination of the LEDs at preset time intervals when the LEDs work, and starting one-stage LED lamp beads when continuous N times of measured values are lower than a preset constant illumination target value, wherein N is an integer greater than or equal to 1, and the one-stage LED lamp beads are any one stage of the multi-stage LED lamp beads in the illumination compensation area or the LED lamp beads closest to the currently-working LED lamp beads in the multi-stage LED lamp beads in the illumination compensation area.
4. A method of controlling LED illumination output according to claim 3, wherein: when the working times of the working area reach the preset working times, part of LED lamp beads of the working area are added into the illuminance compensation area, the corresponding number of LED lamp beads of the illuminance compensation area are added into the working area, the working times are recalculated, wherein the working time after the LEDs are started reaches the preset minimum working time is defined as one starting time, and the part of LED lamp beads are the LED lamp beads with the working times reaching the preset working times.
5. A method of controlling LED illumination output according to claim 3, wherein: when the working time length of the working area reaches the preset working time length, part of LED lamp beads of the working area are added into the illuminance compensation area, the corresponding number of LED lamp beads of the illuminance compensation area are added into the working area, and the working time length is recalculated, wherein the part of LED lamp beads are the LED lamp beads with the working time length reaching the preset working time length.
6. The method for controlling the illuminance output of an LED of claim 1 wherein: the circuitry of the illuminance sensor incorporates a negative temperature coefficient thermistor.
7. The method of claim 4, further comprising:
gradually adding LED lamp beads of the illuminance compensation area into the working area along with the increase of the service life of the LED court lamp;
when all the LED lamp beads are added into the working area, the LEDs are controlled to be started in a slow gradual change mode when started so as to remind a user that the service life of the LEDs is prolonged.
8. A control system for LED illumination output, comprising:
the detection module is used for taking the LED light signals collected by the illuminance sensor and reflected by the lampshade as an illuminance measurement source when the LEDs work, and detecting the illuminance measurement source to obtain a measured value;
the starting module is used for starting the LED lamp beads under the condition that the total rated power is unchanged when the measured value is lower than a preset constant illuminance target value, wherein the LED lamp beads are not started in the LEDs.
9. A computer device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized by: the processor, when executing the computer program, implements the steps of the method of controlling LED illumination output of any one of claims 1-7.
10. A computer readable storage medium having stored thereon a computer program, characterized in that the computer program, when being executed by a processor, realizes the steps of the method of controlling LED illuminance output of any one of claims 1 to 7.
CN202310666072.9A 2023-06-06 2023-06-06 LED illumination output control method and system Pending CN116723600A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117355005A (en) * 2023-11-09 2024-01-05 深圳市世迈光电有限公司 Lighting lamp control method for general public place

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117355005A (en) * 2023-11-09 2024-01-05 深圳市世迈光电有限公司 Lighting lamp control method for general public place

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