CN106658859A - High-precision LED frequency modulation system and LED frequency modulation lamp - Google Patents
High-precision LED frequency modulation system and LED frequency modulation lamp Download PDFInfo
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- CN106658859A CN106658859A CN201710013280.3A CN201710013280A CN106658859A CN 106658859 A CN106658859 A CN 106658859A CN 201710013280 A CN201710013280 A CN 201710013280A CN 106658859 A CN106658859 A CN 106658859A
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- led
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- control unit
- frequency modulation
- chip microcomputer
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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
-
- 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 invention provides a high-precision LED frequency modulation system and an LED frequency modulation lamp. The high-precision LED frequency modulation system is provided with an LED light emitting unit, wherein the LED light emitting unit is connected with a switch switching unit and a charging control unit, and also provided with a single chip microcomputer main control unit; and the single chip microcomputer main control unit is connected with the switch switching unit, the charging control unit, a frequency regulation unit, a photosensitive sensing unit and a display unit. According to the high-precision LED frequency modulation system and the LED frequency modulation lamp provided by the embodiments, the actually produced flash frequently is accurate and stable due to a photosensitive sensor with feedback, a rotary encoder and a closed loop control structure of the single chip microcomputer main control unit and a control algorithm of the single chip microcomputer main control unit; under the premise of supplying power to a power supply with stable flash frequently in manners of alternating current charging and direct current power supply, an apparatus is more environment-friendly, and convenient and rapid, and can work independently by separating from an external power supply; and therefore, the high-precision LED frequency modulation system and the LED frequency modulation lamp are higher in practicability and bright in application prospect.
Description
Technical field
The present invention relates to LED frequency modulation technologies field, more particularly to a kind of high-precision LED frequency modulation systems and LED frequency modulation lamps.
Background technology
LED is as a kind of light fixture of light source, Yin Qifa using light emitting diode (Light Emitting Diode)
The advantages of light efficiency height, energy saving, good anti-seismic performance and be widely used in various scenes.LED in the market is led to
AC and DC can be often divided into power two ways, because alternating current has certain frequency, so the LED of Alternating Current Power Supply exists
It is luminous with supply and AC identical frequency under normal circumstances, but ac power supply method has two subject matters, and one is alternating current Jing
Its intrinsic frequency is still had after overmodulated circuit transformation and rectification, this intrinsic frequency can produce interference to strobe signal frequency,
Cause the frequency of the actual flickers of LED and unstable and accurate；Two is without internal cell, it is impossible to departs from external power supply and uses.
And the frequency modulation control mode of existing adjustable frequency LED is open-loop control structures, that is to say, that frequency modulation control is only
Responsible output frequency, and output frequency is not measured and is fed back, thus frequency modulation precision it cannot be guaranteed that.
Additionally, the Chinese patent that Patent No. ZL201410445221 is provided《A kind of LED automatic synchronizations strobe apparatus and its
Control method》In strobe signal be to be triggered by external knob, this mode has two subject matters, one be need button or
Knob perseveration LED could persistently flash, and affect device service life, and two is that external signal precision is wayward, is unfavorable for
Stably lasting stroboscopic output.
The content of the invention
The present invention provides a kind of high-precision LED frequency modulation systems and LED frequency modulation lamps, solves using the photosensitive biography with feedback
The closed loop controlling structure of sensor, rotary encoder and single-chip microcomputer main control unit is accurately adjusting the technical problem of flashing rate.
To solve above technical problem, the present invention provides a kind of high-precision LED frequency modulation systems, is provided with LED luminescence units,
The LED luminescence units connecting valve switch unit and charging control unit, are additionally provided with single-chip microcomputer main control unit, the single-chip microcomputer
Main control unit connects the switch switching unit, charging control unit, frequency adjustment unit, light sensor unit, display unit；
The switch switching unit is provided with switch module, described by the Switch State Combination in Power Systems control of the switch module
LED luminescence unit on-offs, restart, and display switch control signal is sent to the single-chip microcomputer main control unit；
The frequency adjustment unit is used to produce frequency adjusting signals, arranges target glow frequency value；
The light sensor unit is used to measure the actual glow frequency value of the LED luminescence units；
The single-chip microcomputer main control unit is used for the deviation according to the actual glow frequency value and target glow frequency value, adopts
The actual glow frequency value of LED luminescence units is adjusted to control algolithm reaches target glow frequency value；
The single-chip microcomputer main control unit is additionally operable to single according to the display switch control signal control display for receiving
First display target glow frequency value and actual glow frequency value.
Further, the LED luminescence units are provided with LED/light source；The switch module of the switch switching unit include to
A few shift knob.
Further, the charging control unit is provided with rechargeable battery and is connected to the rechargeable battery both positive and negative polarity two
End and the battery charger of the single-chip microcomputer main control unit.
Further, the frequency adjustment unit is provided with adjusting knob and is connected to the adjusting knob with the single-chip microcomputer
Rotary encoder between main control unit；The encoded radio for changing the rotary encoder by rotating the adjusting knob is arranged not
The same target glow frequency value.
Further, the single-chip microcomputer main control unit is provided with microcontroller and internal clocking, and the internal clocking controls institute
State target glow frequency value, the triggering of the frequency of actual glow frequency value.
Further, the light sensor unit is provided with light sensor, and the light sensor gathers the LED/light source
Intensity of illumination, according to the irradiation time of the intensity of illumination interval or the fall time interval, obtain the actual glow frequency
Value.
Further, the display unit is provided with LCD display, is additionally operable to show what the single-chip microcomputer main control unit sent
Battery real time electrical quantity information and battery real time temperature information.
The present invention also provides a kind of high-precision LED frequency modulation lamp, be provided with LED stocks, base and connect the base with
The support of LED stocks；The base, support and LED stock mounted insides have pcb board；The pcb board is provided with the LED and sends out
Light unit, single-chip microcomputer main control unit, light sensor unit, frequency adjustment unit, charging control unit, display unit and switch are cut
Change unit.
Further, the support is deformable support；The LED stocks surface is provided with the chimeric LED and lights
The LED perforates of the LED/light source of unit；The susceptor surface is provided with the electricity of the AC charger of the chimeric charging control unit
Line perforate, be fitted together to the light sensor unit light sensor sensor aperture, be fitted together to the switch switching unit and open
Close button perforate, the knob perforate of the adjusting knob of the chimeric frequency adjustment unit, the chimeric LCD display unit of button
LCD display LCD perforates.
A kind of high-precision LED frequency modulation systems and LED frequency modulation lamps that the present invention is provided, the light sensor fed back by band
The closed loop controlling structure of device, rotary encoder and single-chip microcomputer main control unit, is caused by the control algolithm of single-chip microcomputer main control unit
The actual flashing rate for producing is accurate and stable；Using AC charging, the power supply mode of direct current supply, there is provided steady to flashing rate
On the premise of determining power supply so that device is more environmentally friendly convenient, external power supply can be departed from and isolated operation, practicality is wider；Pass through
Button and knob are adjusted come the switch control rule and frequency for carrying out device, and by display unit display system and the operation shape of device
State, the design for both having met hommization in turn ensure that the publicity and validity of information, with vast application prospect.
Description of the drawings
Fig. 1 is a kind of system module figure of high-precision LED frequency modulation systems provided in an embodiment of the present invention；
Fig. 2 is a kind of circuit theory sketch of high-precision LED frequency modulation systems provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of high-precision LED frequency modulation devices provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.Following components and parts are only preferred embodiment, do not constitute limiting the scope of the invention.
It is a kind of system module figure of high-precision LED frequency modulation systems provided in an embodiment of the present invention referring to Fig. 1.At this
In embodiment, described a kind of high-precision LED frequency modulation systems are provided with LED luminescence units 10, and the LED luminescence units 10 connect
Switch switching unit 20 and charging control unit 30 are connect, single-chip microcomputer main control unit 40, the single-chip microcomputer main control unit 40 is additionally provided with
Connect the switch switching unit 20, charging control unit 30, frequency adjustment unit 50, light sensor unit 60, display unit
70；
The switch switching unit 20 is provided with switch module, and the switch module includes at least one shift knob；It is logical
The Switch State Combination in Power Systems for crossing the shift knob controls the on-off of the power supply of LED luminescence units 10, restarts, and to institute
State single-chip microcomputer main control unit 40 and send display switch control signal；
The frequency adjustment unit 50 is used to produce frequency adjusting signals, arranges target glow frequency value K；
The light sensor unit 60 is used to measure actual glow frequency value K of the LED luminescence units 10 '；
The single-chip microcomputer main control unit 40 is used for according to actual glow frequency value K ' it is inclined with target glow frequency value K
Difference, using control algolithm by actual glow frequency value K of LED luminescence units 10 ' it is adjusted to and reaches target glow frequency value K；
The single-chip microcomputer main control unit 40 is additionally operable to control the display according to the display switch control signal for receiving
Display target glow frequency value K of unit 70 and actual glow frequency value K '.
It is a kind of circuit theory sketch of high-precision LED frequency modulation systems provided in an embodiment of the present invention referring to Fig. 2.
In the present embodiment, the LED luminescence units 10 are mainly provided with LED/light source 11, can be provided with varying number and not according to user's request
With the LED for different purposes of color；The switch module of the switch switching unit 20 includes at least one shift knob 21,
Such as, in the case where only a shift knob 21 is arranged, the short UNICOM that LED luminescence units 10 are carried out by the shift knob 21
With disconnection, long by shift knob 21 single-chip microcomputer main control unit 40 to be forced to restart, the double-click changeable display of shift knob 21
Unit 70 shows different contents.Above-mentioned functions can also be realized by arranging multiple switch button 21.
The charging control unit 30 is provided with rechargeable battery 31 and is connected to the positive and negative end of the rechargeable battery 31
With the battery charger 32 of the single-chip microcomputer main control unit 40；Thus, using AC charging, the power supply mode of direct current supply, carrying
On the premise of supply flashing rate stabilized power source so that more environmentally friendly convenient with the device of the system, external power supply can be departed from
And isolated operation, practicality is wider.Rechargeable battery 31 can control AC charger 26 and enter by the single-chip microcomputer main control unit 40
Row intelligent charge, when battery electric quantity is less than certain degree, (such as less than 20%) starts to charge up, when load voltage is less than floating charge
During voltage, battery charger 32 described in 51 Single-chip Controlling is output as constant-current charge, when load voltage reaches float charge voltage
When automatically switch to constant-voltage charge, electricity stops charging full of rear, and can in charging process monitor in real time battery electric quantity and temperature
Degree；The rechargeable battery 31 is also powered in addition to powering for the LED/light source 11 for single-chip microcomputer main control unit 40, when without outer
Also LED normally operation long-time enough can be ensured when connecing alternating current.
According to different customer groups or practical scene, the rechargeable battery 31 can be set for different amount of capacity
Rechargeable battery, in some extreme environments, it is also possible to which it is solar cell to arrange the rechargeable battery 31, by increasing solar energy
Collector plate removes original battery charger 32 and change proper circuit and just can realize.
In the present embodiment, the frequency adjustment unit 50 be provided with adjusting knob 51 and be connected to the adjusting knob 51 with
Rotary encoder 52 between the single-chip microcomputer main control unit 40；Change the rotary coding by rotating the adjusting knob 51
The encoded radio of device 52 arranges different target glow frequency values K；The single-chip microcomputer main control unit 40 is provided with microcontroller 41,
51 single-chip microcomputers can be preferably adopted, internal clocking 411 is additionally provided with, the internal clocking 411 controls the target glow frequency value
K, actual glow frequency value K ' frequency triggering；The light sensor unit 60 is provided with light sensor 61, the light sensor
Device 61 gathers the intensity of illumination of the LED/light source 11, according to the irradiation time of intensity of illumination interval or fall time interval,
Obtain actual glow frequency value K '.
The frequency-tuning range for being above-mentioned adjusting knob 51 may be configured as 0.01～1000Hz, and the microcontroller 41 connects
The code conversion of the rotary encoder 52 is received into target glow frequency value K, then according to the mode of T=1/2K calculates described
The duration that LED/light source 11 is lighted and extinguished, the LED/light source 11 is controlled by the timing function of the internal clocking 411
The break-make of the part of shift knob 21 on power supply circuits, after the connected state of a T+t times, follows T+t time
Off-state, wherein t are the fine setting time, finely tune the calculating of time t first according to the luminous frequency of reality of the measurement of light sensor 61
Rate value K ' and target glow frequency value K calculated time deviation e of deviation, then according to control algolithm (such as PID increments
Type control algolithm) calculate fine setting time t:
T (k)=q0e (k)+q1e (k-1)+q2e (k-2)
Fine setting time when wherein t (k) is kth time measurement, e (k), e (k-1), e (k-2) are respectively kth time, kth -1
Time deviation during -2 measurements of secondary, kth, q0, q1, q2 are proportional integral derivative algorithm coefficient.
By the closed-loop control of the above-mentioned light sensor 61 with feedback, rotary encoder 52 and single-chip microcomputer main control unit 40
Structure can accurately adjust the glow frequency of LED/light source 11 so that LED/light source 11 with accurate stable with target glow frequency value
KK carries out flashing.
In the present embodiment, the display unit 70 is provided with LCD display 71, except showing above-mentioned target glow frequency
Value K and actual glow frequency value K ' outward, it is additionally operable to show the battery real time electrical quantity information that the single-chip microcomputer main control unit 40 sends
And battery real time temperature information, it is easy to user to obtain relevant information in time, the design for both having met hommization in turn ensure that information
Publicity and validity, with vast application prospect.The LCD display 71 can select LCD1602 dot lcds and show
Screen, can show two rows, often 16 characters of row, and screen size and indication range can meet display demand substantially.
It is a kind of structural representation of high-precision LED frequency modulation devices provided in an embodiment of the present invention referring to Fig. 3.At this
In embodiment, the present invention provides a kind of high-precision LED frequency modulation lamp, is provided with LED stocks 1, base 2 and connects the base 2
With the support 3 of LED stocks 1；The base 2, support 3 and the mounted inside of LED stocks 1 have pcb board 4；The pcb board 4 is provided with
It is the LED luminescence units 10 corresponding with above-mentioned a kind of high-precision LED frequency modulation systems, single-chip microcomputer main control unit 40, photosensitive
Sensing unit 60, frequency adjustment unit 50, charging control unit 30, display unit 70 and switch switching unit 20.
Wherein, the support 3 is deformable support, and the surface of LED stocks 1 is provided with the chimeric LED luminescence units
The LED perforates 5 of 10 LED/light source 11；The surface of the base 2 is provided with the battery charger of the chimeric charging control unit 30
32 electric wire perforate 6, the sensor aperture 7 of the light sensor 61 of the chimeric light sensor unit 60, the chimeric switch
The button perforate 8 of the shift knob 21 of switch unit 20, the knob of the adjusting knob 51 for being fitted together to the frequency adjustment unit 50 are opened
Hole 9, the LCD perforates 100 of the LCD display 71 of the chimeric LCD display unit 70.
Thus, user is just capable of achieving user certainly by need to only operate battery charger 32, the button and adjusting knob 51
The High Precision Automatic regulation of target glow frequency value K of setting.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (9)
1. a kind of high-precision LED frequency modulation systems, are provided with LED luminescence units, it is characterised in that the LED luminescence units connection
Switch switching unit and charging control unit, are additionally provided with single-chip microcomputer main control unit, open described in the single-chip microcomputer main control unit connection
Close switch unit, charging control unit, frequency adjustment unit, light sensor unit, display unit；
The switch switching unit is provided with switch module, and by the Switch State Combination in Power Systems of the switch module LED is controlled
Luminescence unit on-off, restart, and display switch control signal is sent to the single-chip microcomputer main control unit；
The frequency adjustment unit is used to produce frequency adjusting signals, arranges target glow frequency value；
The light sensor unit is used to measure the actual glow frequency value of the LED luminescence units；
The single-chip microcomputer main control unit is used for the deviation according to the actual glow frequency value and target glow frequency value, using control
The actual glow frequency value of LED luminescence units is adjusted to and reaches target glow frequency value by algorithm processed；
The single-chip microcomputer main control unit is additionally operable to be shown according to the display switch control signal control display unit for receiving
Show target glow frequency value and actual glow frequency value.
2. a kind of high-precision LED frequency modulation systems as claimed in claim 1, it is characterised in that：The LED luminescence units are provided with
LED/light source；The switch module of the switch switching unit includes at least one shift knob.
3. a kind of high-precision LED frequency modulation systems as claimed in claim 1, it is characterised in that：The charging control unit sets
There is rechargeable battery and be connected to the battery charger of the rechargeable battery positive and negative end and the single-chip microcomputer main control unit.
4. a kind of high-precision LED frequency modulation systems as claimed in claim 1, it is characterised in that：The frequency adjustment unit sets
The rotary encoder for having adjusting knob and being connected between the adjusting knob and the single-chip microcomputer main control unit；By rotation institute
The encoded radio for stating the adjusting knob change rotary encoder arranges the different target glow frequency values.
5. a kind of high-precision LED frequency modulation systems as claimed in claim 1, it is characterised in that：The single-chip microcomputer main control unit
Microcontroller and internal clocking are provided with, the internal clocking controls the target glow frequency value, the frequency of actual glow frequency value
Rate is triggered.
6. a kind of high-precision LED frequency modulation systems as claimed in claim 1 or 2, it is characterised in that：The light sensor unit
Light sensor is provided with, the light sensor gathers the intensity of illumination of the LED/light source, according to the irradiation of the intensity of illumination
Time interval or fall time are spaced, and obtain the actual glow frequency value.
7. a kind of high-precision LED frequency modulation systems as claimed in claim 1, it is characterised in that：The display unit is provided with LCD
Display screen, is additionally operable to show the battery real time electrical quantity information and battery real time temperature information that the single-chip microcomputer main control unit sends.
8. a kind of high-precision LED frequency modulation lamp, it is characterised in that be provided with LED stocks, base and connect the base and LED
The support of stock；The base, support and LED stock mounted insides have pcb board；It is luminous single that the pcb board is provided with the LED
Unit, single-chip microcomputer main control unit, light sensor unit, frequency adjustment unit, charging control unit, display unit and switch switching are single
Unit.
9. a kind of high-precision LED frequency modulation lamp as claimed in claim 8, it is characterised in that：The support is deformable support；
The LED stocks surface is provided with the LED perforates of the LED/light source of the chimeric LED luminescence units；The susceptor surface is provided with
The electric wire perforate for being fitted together to the AC charger of the charging control unit is, the light sensor for being fitted together to the light sensor unit
Sensor aperture, the button perforate of the shift knob of the chimeric switch switching unit, the tune for being fitted together to the frequency adjustment unit
The knob perforate of section knob, the LCD perforates of the LCD display of the chimeric LCD display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710013280.3A CN106658859B (en) | 2017-01-09 | 2017-01-09 | A kind of high-precision LED frequency modulation system and LED frequency modulation lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710013280.3A CN106658859B (en) | 2017-01-09 | 2017-01-09 | A kind of high-precision LED frequency modulation system and LED frequency modulation lamp |
Publications (2)
| Publication Number | Publication Date |
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| CN106658859A true CN106658859A (en) | 2017-05-10 |
| CN106658859B CN106658859B (en) | 2019-01-01 |
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ID=58843509
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710013280.3A Active CN106658859B (en) | 2017-01-09 | 2017-01-09 | A kind of high-precision LED frequency modulation system and LED frequency modulation lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107846751A (en) * | 2017-11-17 | 2018-03-27 | 欧普照明股份有限公司 | Lighting apparatus, illuminator and electronic equipment with signal edit function |
| WO2018126751A1 (en) * | 2017-01-09 | 2018-07-12 | 万长林 | High-precision led frequency modulation system and led frequency modulation light |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104254179A (en) * | 2014-09-03 | 2014-12-31 | 宁波欣达印刷机器有限公司 | LED (light emitting diode) automatic synchronous stroboscopic device and control method thereof |
| CN205082012U (en) * | 2015-10-20 | 2016-03-09 | 欧普照明股份有限公司 | Lighting device |
| CN206452574U (en) * | 2017-01-09 | 2017-08-29 | 万长林 | A kind of high-precision LED frequency modulation systems and LED frequency modulation lamps |
-
2017
- 2017-01-09 CN CN201710013280.3A patent/CN106658859B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104254179A (en) * | 2014-09-03 | 2014-12-31 | 宁波欣达印刷机器有限公司 | LED (light emitting diode) automatic synchronous stroboscopic device and control method thereof |
| CN205082012U (en) * | 2015-10-20 | 2016-03-09 | 欧普照明股份有限公司 | Lighting device |
| CN206452574U (en) * | 2017-01-09 | 2017-08-29 | 万长林 | A kind of high-precision LED frequency modulation systems and LED frequency modulation lamps |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018126751A1 (en) * | 2017-01-09 | 2018-07-12 | 万长林 | High-precision led frequency modulation system and led frequency modulation light |
| CN107846751A (en) * | 2017-11-17 | 2018-03-27 | 欧普照明股份有限公司 | Lighting apparatus, illuminator and electronic equipment with signal edit function |
| CN107846751B (en) * | 2017-11-17 | 2024-01-19 | 欧普照明股份有限公司 | Lighting device with signal editing function, lighting system and electronic device |
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| Publication number | Publication date |
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| CN106658859B (en) | 2019-01-01 |
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