CN207219087U - A kind of ambient light induction controller based on LED - Google Patents
A kind of ambient light induction controller based on LED Download PDFInfo
- Publication number
- CN207219087U CN207219087U CN201720400650.4U CN201720400650U CN207219087U CN 207219087 U CN207219087 U CN 207219087U CN 201720400650 U CN201720400650 U CN 201720400650U CN 207219087 U CN207219087 U CN 207219087U
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- China
- Prior art keywords
- led
- microcontroller
- light
- detecting circuit
- circuit
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of ambient light induction controller based on LED, including microcontroller, mu balanced circuit and lighting detecting circuit, mu balanced circuit is connected with LED drive circuit and provides operating voltage to microcontroller and lighting detecting circuit；PWM port is set on microcontroller, and microcontroller is also connected by PWM port and drives lamp control switch, and lamp control switch is connected with LED, the logical control PWM of microcontroller output frequency, so as to control LED glow frequency；The illumination change value that lighting detecting circuit detects is converted into electric signal compared with default magnitude of voltage by microcontroller simultaneously, controls LED switch and brightness regulation by PWM port again according to comparative result.The utility model realizes the function that light fixture automatically controls according to the change of ambient light, saves a large amount of manpowers and the energy；Any portion of purpose that light sensation controller is arranged on to light fixture is realized, and Product Experience is well very good.
Description
Technical field
It the utility model is related to light control device technical field, and in particular to a kind of environment photoinduction control based on LED
Device.
Background technology
The light sensation controller of light fixture can realize that light fixture lamp on daytime does not work, and the automatic bright Automated condtrol of darkness, is a kind of
Very useful convenient product.But traditional light sensation controller None- identified light fixture lights in itself and ambient visible light, also
Say None- identified daytime or night when being disturbed by itself light, controller can only be arranged on not by light fixture in itself
The place that illumination is mapped to, such mounted lamp are just much limited, and cause very big puzzlement；And this method can not be done
To accurately permanent optical illumination, can not accurately avoid the interference of itself light, environment-identification intensity of illumination and make illumination compensation.
The popularization of LED solid-state illuminations provides platform for the design to integral intelligent light fixture, by built in light sensation controller
There is urgent demand in lamp interior structure, but this causes light sensation controller to have to ask in face of the luminous of light fixture itself
Topic, and it is difficult to resolution daytime or night environment under the interference of itself light, in order to solve to identify the light and ring of light fixture itself
Border visible ray, current light sensation controller typically using detect circuit be arranged to timing detection ambient light while quick closedown lamp
Have the light source of itself to judge ambient visible light intensity, of short duration can so be flashed in this detection time point, light fixture, if
If timing detection cycle is shorter, this flicker just it is obvious that if timing detect it is long if when ambient visible light
Very strong but light fixture is also bright always until next detection time point, unnecessary waste can be so caused, also without basic
Solve the problems, such as.
Utility model content
The purpose of this utility model is that solve current light sensation controller None- identified natural light and light fixture itself light, and to lamp
Restricted problem caused by tool installation, reduces the wasting of resources caused by current light sensation controller.
To achieve these goals, the utility model provides a kind of ambient light induction controller based on LED, is used for
Switch and the brightness of LED, including microcontroller, mu balanced circuit and lighting detecting circuit, mu balanced circuit is controlled to be connected with LED
And to microcontroller and lighting detecting circuit output services voltage；
PWM port is set on microcontroller, and microcontroller is also connected by PWM port and drives lamp control switch, and lamp control is opened
Pass is connected with LED, and microcontroller is by controlling the output frequency of PWM port to control the glow frequency of LED；Microcontroller is same
When the illumination change value that lighting detecting circuit detects is converted into electric signal compared with default magnitude of voltage, according to comparing
As a result LED switch and brightness is controlled by PWM port again.
Further, lighting detecting circuit includes the phototriode and resistance of series connection.
Further, mu balanced circuit to the voltage that microcontroller exports be 3V-5.5V.
Further, lamp control switch is metal-oxide-semiconductor, triode, integrated circuit, driving power IC, controllable silicon or relay.
In the above-mentioned technical solutions, the utility model, which solves current light sensation controller, can not suppress the interference of itself light
Problem, ambient light intensity can be accurately identified, without scintillation and Product Experience it is good, realize and light sensation controller be installed
In any portion of purpose of light fixture, the limitation to light fixture surface structure is reduced, greatly promotes the development of light fixture intelligent control,
Society can be saved and save the energy and manpower, be advantageous to promote industry upgrading development.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only described in the utility model
Some embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is ambient light induction controller of the utility model based on LED and LED block diagram connection diagram；；
Fig. 2 is the circuit connection diagram of ambient light induction controller and LED of the utility model based on LED；
Fig. 3 is the brightness value of LED and illumination in the ambient light induction controller described in the utility model based on LED
Detect the relation corresponding diagram of circuit in circuit；
Fig. 4 is the light used in ambient light induction controller one embodiment described in the utility model based on LED
The circuit diagram of quick triode；
Fig. 5 is lamp control switch one embodiment in the ambient light induction controller described in the utility model based on LED
Circuit diagram.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing pair
The utility model is further detailed.
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing pair
The utility model is further detailed.
Current LED light controller cannot be distinguished by the technological deficiency that visible ray and LED light in itself, the utility model proposes
A kind of device for being capable of quick detection ambient visible light and lamp luminescence, i.e., a kind of LED-based light provided by the utility model
Reaction Control Assembly.
As shown in Figure 1-2, the ambient light induction controller 100 described in the utility model based on LED, for controlling
The switch of LED 200 and brightness, including microcontroller 1, mu balanced circuit 2 and lighting detecting circuit 3, mu balanced circuit 2 and LED
200 connections simultaneously provide operating voltage to microcontroller 1 and lighting detecting circuit 3；
PWM port is set on microcontroller 1, and microcontroller is also connected by PWM port and drives lamp control switch 4, micro-control
Device 1 processed is by controlling the output frequency of PWM port to control the glow frequency of LED；Microcontroller is simultaneously by lighting detecting circuit 3
The electric signal that the illumination change value detected is converted to passes through PWM again compared with default magnitude of voltage according to comparative result
The switch of port controlling LED and brightness.
Operation principle：As shown in figure 1, LED 200 includes the He of LED drive circuit 201 being connected with each other during specific implementation
LED module 202.Because ambient light includes the luminous and natural visible ray of various light fixtures, they have specific frequency, light fixture
Including traditional incandescent lamp, frequency is in 50HZ or 60HZ；Modulation frequency is saved in 20-50HZ and LED direct current lamps etc.；And nature can
See the frequency of light between 380-790T HZ.The light frequency that these can have influence on environment is all different, and a kind of by detecting
The frequency of light goes to judge that real ambient light is difficult, therefore the utility model is by controlling the frequency control that PWM port exports
The glow frequency of LED processed, so as to realize that by the frequency conversion of LED module in LED be the frequency different from ambient visible light.
When it is implemented, microcontroller (i.e. MCU) described in the utility model is optionally set to single-chip microcomputer, pass through single-chip microcomputer
The frequency of control PWM port output, which is converted to the light that LED itself exports, to be different from other ambient lights and can not visually distinguish
Other frequency, while synchronous detection lighting detecting circuit (has photosensitive three pole of Microsecond grade curent change response speed to illumination
Pipe and series connection with it resistance composition) in current changing signal, single-chip microcomputer by the current changing signal be converted to numeral electricity
As comparing data after signal, during due to specific implementation can also by set the resistance of resistance adjust the critical point of light sensation or
Critical section, therefore the resistance connected with phototriode can be set to variable resistor, can also be by changing the electricity of different resistances
Resistance, which is realized, changes critical point.It is a cycle that some seconds are can be set as during lighting detecting circuit detection circuit variation signal,
Testing number ten times or up to a hundred times in a cycle, then have repetition by big data analysis to filter out itself light and environment light frequency
Fractional error, the judgement that tries again carrys out output pwm signal and drives lamp control switch.
Further, lighting detecting circuit includes the photosensitive triode and resistance of series connection.When it is implemented, phototriode can
The use PT850 of choosing, corresponding road figure are as shown in Figure 4.
Further, mu balanced circuit is 3-5.5V to the voltage that microcontroller exports, and 5V has been set in the present embodiment.Such as Fig. 2
Shown, in the present embodiment, mu balanced circuit provides 5V voltages supply microcontroller (being optionally single-chip microcomputer), photosensitive after decompression
The triode Q3 and resistance RS of series connection with it work.It can become by phototriode Q3 electric current with the change of intensity of illumination
Change, as shown in Figure 3.For example, choose the critical value that 30LUX is switch lamp, the light currents of corresponding A shelves is about 50uA, RS values
For 20K, so setting internal reference voltage as V=I*R=50Ua*20K=1V.Because single-chip microcomputer (i.e. microcontroller first
Device) synchronous 5th pin of the 2nd pin the output frequency data signal that is converted to the current changing signal of detection and internal reference electricity
Press (1V), be after a cycle does multiple (being set to 20 times) multilevel iudge with 5 seconds, the 5th pin again open by output pwm signal driving lamp control
(open the light lamp control in the present embodiment the triode for being set to that numbering is Q2) is closed to control the state of LED, if monolithic in 5 seconds
The pin of machine the 2nd detects voltage change more than 80% more than 0.8-1V, and the 5th pin just exports the pwm signal of bright light, and otherwise output is gone out
The pwm signal of lamp.
It should be noted that mu balanced circuit is that 3-5.5V is only one of the present utility model to the voltage that microcontroller exports
Optimal parameter value, when it is implemented, mu balanced circuit to the voltage that microcontroller exports can also be other numerical value, the utility model
Herein without limiting.
Lamp control switch metal-oxide-semiconductor is set in the present embodiment, further, when it is implemented, lamp control switch is also optionally set
For the components such as triode, the control pin of integrated circuit, driving power IC, controllable silicon, relay come carry out duty cycle adjustment or
Switch control.When it is implemented, driving power IC (such as model PT4115, MT7816B) can receive pwm signal, wherein, when
When driving power IC is PT4115, its circuit diagram is as shown in Figure 5.Lighted by the control LED for then passing through pwm signal realization,
Therefore each cycle might have reaction time of some seconds to increase accuracy, and the detection number within the reaction time is got over
More, accuracy is higher.
In the present embodiment, the ambient light induction controller based on LED has been arranged on inside LED, when it is implemented,
It is outside to be also optionally installed in LED etc., can be adjusted as needed, due to passing through PWM port control in the utility model
The glow frequency of LED has been made, has been realized the glow frequency difference of LED and the frequency of other visible rays, therefore solve
To the limitation of installation site in traditional approach.
Some one exemplary embodiments of the present utility model are only described by way of explanation above, undoubtedly, for
One of ordinary skill in the art, can be with a variety of in the case of without departing from spirit and scope of the present utility model
Mode is modified to described embodiment.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as
Limitation to the utility model claims protection domain.
Claims (3)
- A kind of 1. ambient light induction controller based on LED, for controlling switch and the brightness of LED, it is characterised in that bag Microcontroller, mu balanced circuit and lighting detecting circuit are included, mu balanced circuit is connected with LED and detects electricity to microcontroller and illumination Road provides operating voltage；PWM port is set on microcontroller, microcontroller is also connected by PWM port and drives lamp control switch, lamp control switch with LED connects, and microcontroller is by controlling the output frequency of PWM port to control the glow frequency of LED；Microcontroller simultaneously will The illumination change value that lighting detecting circuit detects is converted into electric signal and compared with default magnitude of voltage, is tied according to comparing Fruit controls switch and the brightness of LED by PWM port again；Lighting detecting circuit includes the phototriode and resistance of series connection.
- 2. the ambient light induction controller according to claim 1 based on LED, it is characterised in that mu balanced circuit is to micro- Controller and the voltage of lighting detecting circuit output are 5V.
- 3. the ambient light induction controller according to claim 1 based on LED, it is characterised in that lamp control switch MOS Pipe, triode, integrated circuit, driving power I C, controllable silicon or relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400650.4U CN207219087U (en) | 2017-04-17 | 2017-04-17 | A kind of ambient light induction controller based on LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720400650.4U CN207219087U (en) | 2017-04-17 | 2017-04-17 | A kind of ambient light induction controller based on LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207219087U true CN207219087U (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720400650.4U Expired - Fee Related CN207219087U (en) | 2017-04-17 | 2017-04-17 | A kind of ambient light induction controller based on LED |
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| CN (1) | CN207219087U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107105539A (en) * | 2017-04-17 | 2017-08-29 | 深圳市柏力浦光电有限公司 | A kind of ambient light induction controller based on LED |
| CN110784658A (en) * | 2019-10-31 | 2020-02-11 | Oppo广东移动通信有限公司 | Exposure control method, device, storage medium and terminal equipment |
| CN114173445A (en) * | 2021-11-29 | 2022-03-11 | 四维生态科技（杭州）有限公司 | Spectrum adjusting system and method based on voltage modulation |
-
2017
- 2017-04-17 CN CN201720400650.4U patent/CN207219087U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107105539A (en) * | 2017-04-17 | 2017-08-29 | 深圳市柏力浦光电有限公司 | A kind of ambient light induction controller based on LED |
| CN107105539B (en) * | 2017-04-17 | 2019-04-30 | 深圳市柏力浦光电有限公司 | A kind of environment photoinduction controller based on LED light |
| CN110784658A (en) * | 2019-10-31 | 2020-02-11 | Oppo广东移动通信有限公司 | Exposure control method, device, storage medium and terminal equipment |
| CN110784658B (en) * | 2019-10-31 | 2021-12-07 | Oppo广东移动通信有限公司 | Exposure control method, device, storage medium and terminal equipment |
| CN114173445A (en) * | 2021-11-29 | 2022-03-11 | 四维生态科技（杭州）有限公司 | Spectrum adjusting system and method based on voltage modulation |
| CN114173445B (en) * | 2021-11-29 | 2023-12-22 | 四维生态科技（杭州）有限公司 | Spectrum adjusting system and method based on voltage modulation |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 |
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| CF01 | Termination of patent right due to non-payment of annual fee |