CN106704845B - LED lamp and method and system for prolonging service life of LED lamp - Google Patents
LED lamp and method and system for prolonging service life of LED lamp Download PDFInfo
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- CN106704845B CN106704845B CN201611122696.0A CN201611122696A CN106704845B CN 106704845 B CN106704845 B CN 106704845B CN 201611122696 A CN201611122696 A CN 201611122696A CN 106704845 B CN106704845 B CN 106704845B
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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
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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
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- 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
Abstract
The invention discloses an LED lamp and a method and a system for prolonging the service life of the LED lamp.
Description
Technical Field
The invention relates to the technical field of LED lamp application, in particular to an LED lamp and a method and a system for prolonging the service life of the LED lamp.
Background
The LED lamp is a high-efficiency energy-saving light source, and therefore, the LED lamp is widely applied to real life. However, since the service life of the LED lamp is constant, in the use process of the existing LED lamp, a fixed voltage and current are applied to the LED lamp, and thus, after the LED lamp is used for a corresponding time, the LED lamp gradually becomes dark until the brightness requirement is not met, so that the service life of the LED lamp is limited.
Disclosure of Invention
The invention provides a method for prolonging the service life of an LED lamp, which can greatly prolong the service life of the LED lamp.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for prolonging the service life of an LED lamp comprises the steps of setting a light intensity attenuation rate threshold, collecting light intensities of the LED lamp at different moments, and increasing input current of the LED lamp at regular time according to the light intensity attenuation rate threshold and the light intensities at different moments.
According to the method for prolonging the service life of the LED lamp, the method for increasing the input current of the LED lamp at regular time according to the light intensity attenuation rate threshold and the light intensities at different moments comprises the following steps: and collecting second light intensity of the LED lamp at regular time, and increasing the input current of the LED lamp when the light intensity attenuation rate of the LED lamp is less than or equal to a light intensity attenuation rate threshold value, wherein the light intensity attenuation rate = the second light intensity/the first light intensity.
According to the method for prolonging the service life of the LED lamp, the method for increasing the input current of the LED lamp at regular time according to the light intensity attenuation rate threshold and the light intensities at different moments comprises the following steps: the method comprises the steps of collecting second light intensity of the LED lamp, determining a light intensity attenuation coefficient of the current environment according to the first light intensity and the second light intensity, obtaining third light intensity according to the first light intensity and a light intensity attenuation rate threshold value, determining attenuation time of the LED lamp from attenuation of the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation rate coefficient, and increasing input current of the LED lamp when the attenuation time is reached.
The method for prolonging the service life of the LED lamp comprises the following steps of: the attenuation coefficient k is determined according to the formula P (t 2) = P (t 1) × exp [ -k (t 2-t 1) ], where P (t 1) represents the first light intensity and P (t 2) represents the second light intensity.
The method for prolonging the service life of the LED lamp comprises the following steps of determining the attenuation time of the LED lamp from the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation coefficient: determining the decay time t3 of the LED lamp from the first light intensity to the third light intensity according to the formula P (t 3) = P (t 1) × exp [ -k (t 3-t 1) ], wherein P (t 1) represents the first light intensity, and P (t 3) represents the third light intensity
The method for prolonging the service life of the LED lamp comprises the step of judging whether the decay time is smaller than a set time threshold value, and if so, giving an alarm.
The invention also provides a system for prolonging the service life of the LED lamp, which comprises:
the light intensity detection module is used for collecting the light intensity of the LED lamp at different moments and sending the light intensity to the control module;
and the control module is used for setting a light intensity attenuation rate threshold value and increasing the input current of the LED lamp according to the light intensity of the LED lamp at different moments and the light intensity attenuation rate threshold value.
In the system for prolonging the service life of the LED lamp, the control module is configured to calculate a light intensity attenuation rate of the LED lamp according to the light intensity of the LED lamp collected by the light intensity detection module, and is configured to increase the input current of the LED lamp when the light intensity attenuation rate is less than or equal to a light intensity attenuation rate threshold, where the light intensity attenuation rate = second light intensity/first light intensity.
In the system for prolonging the service life of the LED lamp, the control module is configured to determine the light intensity attenuation coefficient of the current environment according to the first light intensity and the second light intensity of the LED lamp collected by the light intensity detection module; the LED lamp is used for obtaining third light intensity according to the first light intensity and the light intensity attenuation rate threshold value, and determining the attenuation time of the LED lamp from the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation rate coefficient; for increasing the input current of the LED lamp when the decay time is reached.
The system for prolonging the service life of the LED lamp comprises an alarm module, wherein the control module is used for setting a time threshold, and when the control module judges that the decay time is smaller than the set time threshold, the control module controls the alarm module to alarm.
The invention further provides an LED lamp, which comprises a support and an LED chip positioned on the support, wherein the LED lamp comprises the system, and the light intensity detection module is positioned on the support.
In the LED lamp, the light intensity detection module is located on the side surface of the LED chip and is configured to detect the light intensity emitted from the side surface of the LED chip.
Compared with the prior art, the invention has the advantages and positive effects that: according to the invention, the light intensity of the LED lamp at different moments is collected, and according to the light intensity attenuation rate threshold value and the light intensity of the LED lamp at different moments, when the light intensity of the LED lamp is weakened, the light intensity of the LED lamp is increased in a mode of increasing the input current of the LED lamp, so that the light intensity of the LED lamp meets the light intensity requirement, and the service life of the LED lamp is prolonged.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of an embodiment 1 of the present invention;
FIG. 2 is a schematic block diagram of an embodiment 1 of the present invention;
FIG. 3 is a flow chart of embodiment 2 of the present invention;
FIG. 4 is a schematic block diagram of embodiment 2 of the present invention;
fig. 5 is a schematic view of a package structure of an LED lamp according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a method for prolonging the service life of an LED lamp, which comprises the steps of setting a light intensity attenuation rate threshold value, collecting light intensities of the LED lamp at different moments, and increasing the input current of the LED lamp at regular time according to the light intensity attenuation rate threshold value and the light intensities at different moments so as to improve the light intensity of the LED lamp in a current increasing mode when the light intensity of the LED lamp is weakened to meet the light intensity requirement.
The method for increasing the input current of the LED lamp at regular time according to the light intensity attenuation rate threshold and the light intensity at different moments comprises the following steps: and when the light intensity attenuation rate of the LED lamp is less than or equal to the light intensity attenuation rate threshold value, increasing the input current of the LED lamp, wherein the light intensity attenuation rate = second light intensity/first light intensity.
Specifically, as shown in fig. 1, the method for prolonging the service life of the LED lamp in the embodiment includes the following steps:
s1, setting a light intensity attenuation rate threshold value L.
Wherein, the light intensity attenuation rate is the ratio of the light intensity after attenuation to the light intensity before attenuation. The light intensity attenuation rate threshold value L is a preset fixed value, different values can be set according to different requirements of use occasions, and the setting of the light intensity attenuation rate threshold value L needs to enable the brightness of the LED lamp to meet the brightness requirement of the use occasions.
S2, collecting first light intensity of the LED lamp;
s3, collecting second light intensity of the LED lamp;
s4, judging whether the light intensity attenuation rate of the LED lamp is less than or equal to the light intensity attenuation rate threshold value, if so, going to step S5, and if not, going to step S3. Wherein the intensity decay rate = second intensity/first intensity.
And S5, increasing the input current of the LED lamp.
The steps S2-S5 may be repeated after increasing the input current of the LED lamp until the brightness of the LED lamp fails to meet the demand. Wherein, the first light intensity of the LED lamp collected in the repeated loop step S2 is the light intensity collected again after the input current of the LED lamp is increased in the previous step S5.
When the light intensity attenuation rate of the LED lamp is smaller than or equal to the light intensity attenuation rate threshold value, the input current of the LED lamp is increased to improve the light intensity of the LED lamp, so that the brightness of the LED lamp meets the requirement, and the service life of the LED lamp is greatly prolonged.
Based on the design of the method for prolonging the service life of the LED lamp, another system for prolonging the service life of the LED lamp is also provided in this embodiment, as shown in fig. 2, the system for prolonging the service life of the LED lamp includes a light intensity detection module and a control module.
The light intensity detection module is used for collecting the light intensity of the LED lamp at different moments and sending the light intensity to the control module;
and the control module is used for setting a light intensity attenuation rate threshold value L and increasing the input current of the LED lamp according to the light intensity of the LED lamp at different moments and the light intensity attenuation rate threshold value.
Specifically, the control module calculates a light intensity attenuation rate of the LED lamp according to the light intensity of the LED lamp collected by the light intensity detection module, wherein the light intensity attenuation rate = second light intensity/first light intensity. The control module controls the input current of the LED lamp according to the relation between the light intensity attenuation rate and the light intensity attenuation rate threshold value, and increases the input current of the LED lamp when the light intensity attenuation rate is smaller than or equal to the light intensity attenuation rate threshold value.
The control method of the system for prolonging the service life of the LED lamp in this embodiment is as described in the method for prolonging the service life of the LED lamp, and is not described herein again.
As shown in fig. 5, the present embodiment further provides an LED lamp, where the LED lamp includes a support 1 and an LED chip 2 located on the support 1, the LED lamp includes the system for prolonging the service life of the LED lamp, and the method for prolonging the service life of the LED lamp is adopted, where the light intensity detection module 3 is located on the support 1.
The LED lamp can be a common LED lamp or an ultraviolet LED lamp.
Example 2
The embodiment provides a method for prolonging the service life of an LED lamp, which comprises the steps of setting a light intensity attenuation rate threshold value, collecting light intensities of the LED lamp at different moments, and increasing the input current of the LED lamp at regular time according to the light intensity attenuation rate threshold value and the light intensities at different moments so as to improve the light intensity of the LED lamp in a current increasing mode when the light intensity of the LED lamp is weakened to meet the light intensity requirement.
The method for increasing the input current of the LED lamp at regular time according to the light intensity attenuation rate threshold and the light intensity at different moments comprises the following steps: determining a light intensity attenuation coefficient of the current environment according to the first light intensity and the second light intensity, obtaining a third light intensity according to the first light intensity and a light intensity attenuation rate threshold value, determining the attenuation time of the LED lamp from the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation rate coefficient, and increasing the input current of the LED lamp when the attenuation time is reached.
Specifically, as shown in fig. 3, the method for prolonging the service life of the LED lamp in the embodiment includes the following steps:
s1, the control module sets a light intensity attenuation rate threshold value L and a time threshold value Ts.
Wherein, the light intensity attenuation rate is the ratio of the light intensity after attenuation to the light intensity before attenuation. The light intensity attenuation rate threshold value L is a preset fixed value, different values can be set according to different requirements of use occasions, and the setting of the light intensity attenuation rate threshold value L needs to enable the brightness of the LED lamp to meet the brightness requirement of the use occasions.
The time threshold Ts is a preset time fixed value, and the purpose of setting the time threshold Ts is to remind a user in advance that the time of the LED lamp is still Ts, namely the use limit is reached, and the requirement on brightness is not met. The time setting threshold Ts is a fixed time length, and the time setting threshold may be set to different values according to different requirements of the use occasions, for example, Ts may be set to 50 hours, and an alarm may be given when the decay time is less than 50 hours.
S2, collecting a first light intensity P (t 1) of the LED lamp;
s3, collecting a second light intensity P (t 2) of the LED lamp;
s4, determining the light intensity attenuation coefficient of the current environment according to the first light intensity P (t 1) and the second light intensity P (t 2).
And determining the light intensity attenuation coefficient k of the LED lamp under the current working environment according to the formula P (t 2) = P (t 1) × exp [ -k (t 2-t 1) ].
And S5, obtaining a third light intensity P (t 3) according to the first light intensity P (t 1) and the light intensity attenuation rate threshold L, wherein L = P (t 3)/P (t 1).
S6, determining the decay time of the LED lamp from the first light intensity P (t 1) to the third light intensity P (t 3) according to the third light intensity P (t 3) and the light intensity decay rate coefficient k.
And determining the decay time t3 of the LED lamp from the first light intensity to the third light intensity according to the formula P (t 3) = P (t 1) × exp [ -k (t 3-t 1) ].
S7, judging whether the attenuation time t3 is smaller than a set time threshold, if so, going to step S8, otherwise, going to step S9.
And S8, alarming.
And S9, increasing the input current of the LED lamp when the decay time t3 is reached.
After the input current of the LED lamp is increased, the loop of step S2 is repeated until the process goes to step S8 and ends. Wherein, the first light intensity of the LED lamp collected in the repeated loop step S2 is the light intensity collected again after the input current of the LED lamp is increased in the previous step S9.
The detection wavelength of the light intensity detection module corresponds to the light emitting wavelength of the LED lamp, and the light intensity detection module does not respond to light in other wave bands.
The embodiment calculates the light intensity attenuation coefficient of the working environment where the LED lamp is located according to the change of the light intensity of the LED lamp, calculates the third light intensity according to the preset light intensity attenuation rate threshold value, determines the attenuation time of the LED lamp from the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation coefficient, increases the input current of the LED lamp when the attenuation time is reached, improves the light intensity of the LED lamp, ensures that the light intensity of the LED lamp meets the requirement, and circulates the working processes in sequence.
As shown in fig. 4, the present embodiment further provides a system for prolonging the service life of an LED lamp, which includes a light intensity detection module, a control module, and an alarm module.
The light intensity detection module is used for collecting the light intensity of the LED lamp at different moments and sending the light intensity to the control module;
and the control module is used for setting a light intensity attenuation rate threshold value L and increasing the input current of the LED lamp according to the light intensity of the LED lamp at different moments and the light intensity attenuation rate threshold value.
Specifically, the control module determines a light intensity attenuation coefficient k of the current environment according to a first light intensity P (t 1) and a second light intensity P (t 2) of the LED lamp, which are collected by the light intensity detection module; the attenuation coefficient k is determined in particular according to the formula P (t 2) = P (t 1) × exp [ -k (t 2-t 1) ].
The control module obtains a third light intensity P (t 3) according to the first light intensity P (t 1) and the light intensity decay rate threshold L, wherein L = P (t 3)/P (t 1).
The control module determines the attenuation time of the LED lamp from the first light intensity P (t 1) to the third light intensity P (t 3) according to the third light intensity P (t 3) and the light intensity attenuation rate coefficient k; specifically, the decay time t3 of the LED lamp from the first light intensity to the third light intensity is determined according to the formula P (t 3) = P (t 1) × exp [ -k (t 3-t 1) ].
The control module is used for increasing the input current of the LED lamp when the decay time t3 is reached.
The control module is also used for setting a time threshold, judging whether the attenuation time is smaller than the set time threshold by the control module, and outputting a control signal to the alarm module to control the alarm module to give an alarm when the attenuation time is smaller than the set time threshold.
And the alarm module is used for receiving the control signal of the control module and giving an alarm to remind a user.
The control method of the system for prolonging the service life of the LED lamp in this embodiment is as described in the method for prolonging the service life of the LED lamp, and is not described herein again.
As shown in fig. 5, the present embodiment further provides an LED lamp, where the LED lamp includes a support 1 and an LED chip 2 located on the support 1, the LED lamp includes the system for prolonging the service life of the LED lamp, and the method for prolonging the service life of the LED lamp is adopted, where the light intensity detection module 3 is located on the support 1.
The LED chip 2 and the light intensity detection module 3 are both packaged on the support 1, preferably, the light intensity detection module 3 is located on the side face of the LED chip 2 and used for detecting the light intensity of the side face of the LED chip 2. The LED chip 2 and the light intensity detection module 3 are integrated into one support 1, and the relative positions of the light intensity detection module 3 and the LED chip 2 are fixed. The light intensity detection module 3 detects the side light emitting of the LED chip 2, and the front light emitting of the LED lamp cannot be influenced.
The LED lamp can be a common LED lamp or an ultraviolet LED lamp.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. A method for prolonging the service life of an LED lamp is characterized in that the method comprises the steps of setting a light intensity attenuation rate threshold, collecting light intensities of the LED lamp at different moments, and increasing the input current of the LED lamp at regular time according to the light intensity attenuation rate threshold and the light intensities at different moments;
the method for increasing the input current of the LED lamp at regular time according to the light intensity attenuation rate threshold and the light intensity at different moments comprises the following steps: collecting second light intensity of the LED lamp, determining a light intensity attenuation coefficient of the current environment according to the first light intensity and the second light intensity, obtaining third light intensity according to the first light intensity and a light intensity attenuation rate threshold value, determining attenuation time of the LED lamp from the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation rate coefficient, and increasing input current of the LED lamp when the attenuation time is reached;
the method for determining the light intensity attenuation coefficient of the current environment according to the first light intensity and the second light intensity comprises the following steps: determining an attenuation coefficient k according to the formula P (t 2) = P (t 1) × exp [ -k (t 2-t 1) ], wherein P (t 1) represents the first light intensity and P (t 2) represents the second light intensity;
the method for determining the attenuation time of the LED lamp from the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation rate coefficient comprises the following steps: determining the decay time t3 of the LED lamp from the first light intensity to the third light intensity according to the formula P (t 3) = P (t 1) × exp [ -k (t 3-t 1) ], wherein P (t 1) represents the first light intensity and P (t 3) represents the third light intensity.
2. The method for prolonging the service life of the LED lamp as recited in claim 1, wherein the method comprises the step of judging whether the decay time is less than a set time threshold value, and if so, alarming.
3. A system for extending the useful life of an LED lamp, the system comprising:
the light intensity detection module is used for collecting the light intensity of the LED lamp at different moments and sending the light intensity to the control module;
the control module is used for setting a light intensity attenuation rate threshold value and increasing the input current of the LED lamp according to the light intensity of the LED lamp at different moments and the light intensity attenuation rate threshold value;
the control module is used for determining the light intensity attenuation coefficient of the current environment according to the first light intensity and the second light intensity of the LED lamp acquired by the light intensity detection module; the LED lamp is used for obtaining third light intensity according to the first light intensity and the light intensity attenuation rate threshold value, and determining the attenuation time of the LED lamp from the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation rate coefficient; for increasing the input current of the LED lamp when the decay time is reached;
the method for determining the light intensity attenuation coefficient of the current environment according to the first light intensity and the second light intensity comprises the following steps: determining an attenuation coefficient k according to the formula P (t 2) = P (t 1) × exp [ -k (t 2-t 1) ], wherein P (t 1) represents the first light intensity and P (t 2) represents the second light intensity;
the method for determining the attenuation time of the LED lamp from the first light intensity to the third light intensity according to the third light intensity and the light intensity attenuation rate coefficient comprises the following steps: determining the decay time t3 of the LED lamp from the first light intensity to the third light intensity according to the formula P (t 3) = P (t 1) × exp [ -k (t 3-t 1) ], wherein P (t 1) represents the first light intensity and P (t 3) represents the third light intensity.
4. An LED lamp, LED lamp includes the support and is located the LED chip on the support, its characterized in that, LED lamp includes the system of claim 3, light intensity detection module is located on the support, light intensity detection module is located the side of LED chip, light intensity detection module is used for detecting the side light-emitting intensity of LED chip.
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| CN102014560B (en) * | 2010-11-24 | 2012-11-28 | 四川省桑瑞光辉标识系统股份有限公司 | Adaptive light emitting diode (LED) illumination device and control method thereof |
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