CN106658859B - A kind of high-precision LED frequency modulation system and LED frequency modulation lamp - Google Patents
A kind of high-precision LED frequency modulation system and LED frequency modulation lamp Download PDFInfo
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- CN106658859B CN106658859B CN201710013280.3A CN201710013280A CN106658859B CN 106658859 B CN106658859 B CN 106658859B CN 201710013280 A CN201710013280 A CN 201710013280A CN 106658859 B CN106658859 B CN 106658859B
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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
- 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 present invention provides a kind of high-precision LED frequency modulation system and LED frequency modulation lamps, equipped with LED luminescence unit, the LED luminescence unit connection switch switch unit and charging control unit, it is additionally provided with single-chip microcontroller main control unit, the single-chip microcontroller main control unit connects the switch switching unit, charging control unit, frequency and adjusts unit, light sensor unit, display unit.Implement a kind of high-precision LED frequency modulation system provided by the invention and LED frequency modulation lamp, by the photosensitive sensor with feedback, the closed loop controlling structure of rotary encoder and single-chip microcontroller main control unit, make the flash frequency actually generated accurate and stable by the control algolithm of single-chip microcontroller main control unit；Using the power supply mode of AC charging, direct current supply, under the premise of being supplied to flash frequency stabilized power supply, so that device is more environmentally friendly convenient, external power supply can be detached from and isolated operation, practicability are wider, there is vast application prospect.
Description
Technical field
The present invention relates to LED frequency modulation technology field more particularly to a kind of high-precision LED frequency modulation system and LED frequency modulation lamps.
Background technique
LED light is using a kind of lamps and lanterns of light emitting diode (Light Emitting Diode) as light source, Yin Qifa
The advantages that light efficiency height, energy saving, good anti-seismic performance and be widely used in various scenes.LED light currently on the market is logical
AC and DC power supply two ways can be often divided into, since alternating current has certain frequency, so the LED light of Alternating Current Power Supply exists
It is shone under normal circumstances with the identical frequency of supply and AC, but there are two main problems for ac power supply method, first is that alternating current passes through
Its intrinsic frequency is still had after overmodulated circuit transformation and rectification, this intrinsic frequency can generate interference to strobe signal frequency,
Lead to the practical frequency flashed of LED and unstable and accurate；Second is that external power supply use cannot be detached from without internal cell.
And the frequency modulation control mode of existing adjustable frequency LED light is open-loop control structures, that is to say, that frequency modulation control is only
It is responsible for output frequency, without measuring and feeding back to output frequency, so frequency modulation precision cannot be guaranteed.
In addition, Chinese patent that Patent No. ZL201410445221 is provided " a kind of LED automatic synchronization strobe apparatus and its
Control method " in strobe signal be to be triggered by external knob, this mode there are two main problem, first is that need button or
Knob perseveration LED could continue to flash, and influence service using life, second is that external signal precision is not easy to control, be unfavorable for
Steady and sustained stroboscopic output.
Summary of the invention
The present invention provides a kind of high-precision LED frequency modulation system and LED frequency modulation lamp, solves the photosensitive biography fed back using band
The closed loop controlling structure of sensor, rotary encoder and single-chip microcontroller main control unit carrys out the technical issues of accurately adjusting flash frequency.
In order to solve the above technical problems, the present invention provides a kind of high-precision LED frequency modulation system, is equipped with LED luminescence unit,
The LED luminescence unit connection switch switch unit and charging control unit are additionally provided with single-chip microcontroller main control unit, the single-chip microcontroller
Main control unit connects the switch switching unit, charging control unit, frequency and adjusts unit, light sensor unit, display unit；
The switch switching unit is provided with switch block, described in the Switch State Combination in Power Systems control by the switch block
LED luminescence unit on-off is restarted, and is issued display switch to the single-chip microcontroller main control unit and controlled signal；
The frequency adjusts unit for generating frequency adjusting signals, and target luminous frequency value is arranged；
The light sensor unit is used to measure the practical luminous frequency value of the LED luminescence unit；
The single-chip microcontroller main control unit is used for the deviation according to the practical luminous frequency value and target luminous frequency value, adopts
It is adjusted to the practical luminous frequency value of LED luminescence unit to reach target luminous frequency value with control algolithm；
The single-chip microcontroller main control unit is also used to the display switch control signal based on the received and controls the display list
First displaying target luminous frequency value and practical luminous frequency value.
Further, the LED luminescence unit is equipped with LED light source；The switch block of the switch switching unit includes extremely
A few switch button.
Further, the charging control unit is equipped with rechargeable battery and is connected to the rechargeable battery positive and negative anodes two
The battery charger at end and the single-chip microcontroller main control unit.
Further, the frequency adjusts unit and is equipped with adjusting knob and is connected to the adjusting knob and the single-chip microcontroller
Rotary encoder between main control unit；Change the encoded radio setting of the rotary encoder not by rotating the adjusting knob
The same target luminous frequency value.
Further, the single-chip microcontroller main control unit is equipped with microcontroller and internal clocking, and the internal clocking controls institute
State target luminous frequency value, the triggering of the frequency of practical luminous frequency value.
Further, the light sensor unit is equipped with photosensitive sensor, and the photosensitive sensor acquires the LED light source
Intensity of illumination the practical luminous frequency is obtained according to the irradiation time interval or fall time interval of the intensity of illumination
Value.
Further, the display unit is equipped with LCD display, is also used to show what the single-chip microcontroller main control unit issued
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 equipped with LED stock, pedestal and the connection pedestal with
The bracket of LED stock；The pedestal, bracket and LED stock mounted inside have pcb board；It is luminous single that the pcb board is equipped with LED
Member, single-chip microcontroller main control unit, light sensor unit, frequency adjust unit, charging control unit, display unit and switching list
Member.
Further, the bracket is deformable support；LED stock surface shines equipped with the LED is fitted into
The LED aperture of the LED light source of unit；The susceptor surface is equipped with the electricity for being fitted into the AC charger of the charging control unit
Line aperture, be fitted into the light sensor unit photosensitive sensor sensor aperture, be fitted into opening for the switch switching unit
It closes the button aperture of button, the knob aperture for the adjusting knob for being fitted into the frequency adjusting unit, be fitted into the display unit
The LCD aperture of LCD display.
A kind of high-precision LED frequency modulation system provided by the invention and LED frequency modulation lamp pass through the light sensor with feedback
The closed loop controlling structure of device, rotary encoder and single-chip microcontroller main control unit is made by the control algolithm of single-chip microcontroller main control unit
The flash frequency actually generated is accurate and stable；Using the power supply mode of AC charging, direct current supply, it is steady to be supplied to flash frequency
Under the premise of determining power supply, so that device is more environmentally friendly convenient, external power supply can be detached from and isolated operation, practicability are wider；Pass through
Button and knob are adjusted come the switch control and frequency for carrying out device, and pass through display unit display system and the operation shape of device
State had both met publicity and validity that humanized design in turn ensures information, had vast application prospect.
Detailed description of the invention
Fig. 1 is a kind of system module figure of high-precision LED frequency modulation system provided in an embodiment of the present invention；
Fig. 2 is a kind of circuit theory schematic diagram of high-precision LED frequency modulation system provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of high-precision LED frequency modulation device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Following component is only preferred embodiment, does not constitute limiting the scope of the invention.
It is a kind of system module figure of high-precision LED frequency modulation system provided in an embodiment of the present invention referring to Fig. 1.At this
In embodiment, a kind of high-precision LED frequency modulation system is equipped with LED luminescence unit 10, and the LED luminescence unit 10 connects
Switch switching unit 20 and charging control unit 30 are connect, single-chip microcontroller main control unit 40, the single-chip microcontroller main control unit 40 are additionally provided with
It connects the switch switching unit 20, charging control unit 30, frequency and adjusts unit 50, light sensor unit 60, display unit
70；
The switch switching unit 20 is provided with switch block, and the switch block includes at least one switch button；It is logical
The Switch State Combination in Power Systems for crossing the switch button controls the on-off of 10 power supply of LED luminescence unit, restarts, and to institute
It states single-chip microcontroller main control unit 40 and issues display switch control signal；
The frequency adjusts unit 50 for generating frequency adjusting signals, and target luminous frequency value K is arranged；
The light sensor unit 60 is used to measure the practical luminous frequency value K ' of the LED luminescence unit 10；
The single-chip microcontroller main control unit 40 is used for according to the inclined of the practical luminous frequency value K ' and target luminous frequency value K
Difference is adjusted to the practical luminous frequency value K ' of LED luminescence unit 10 to reach target luminous frequency value K using control algolithm；
The single-chip microcontroller main control unit 40 is also used to the display switch control signal based on the received and controls the display
70 displaying target luminous frequency value K of unit and practical luminous frequency value K '.
It referring to fig. 2, is a kind of circuit theory schematic diagram of high-precision LED frequency modulation system provided in an embodiment of the present invention.?
In the present embodiment, the LED luminescence unit 10 is mainly provided with LED light source 11, can be equipped with different number and not according to user demand
With the LED for different purposes of color；The switch block of the switch switching unit 20 includes at least one switch button 21,
For example, switch button 21 described in short-press carries out the connection of LED luminescence unit 10 in the case where switch button 21 are only arranged
With disconnection, long-pressing switch button 21 can force single-chip microcontroller main control unit 40 to restart, and double-click the changeable display of switch button 21
Unit 70 shows different contents.Above-mentioned function can also be realized by setting multiple switch button 21.
The charging control unit 30 is equipped with rechargeable battery 31 and is connected to 31 positive and negative end of rechargeable battery
With the battery charger 32 of the single-chip microcontroller main control unit 40；In this way, being mentioned using the power supply mode of AC charging, direct current supply
Under the premise of supplying flash frequency stabilized power supply, so that the device with the system is more environmentally friendly convenient, external power supply can be detached from
And isolated operation, practicability are wider.Rechargeable battery 31 can by the single-chip microcontroller main control unit 40 control AC charger 26 into
Row intelligent charge, when battery capacity is lower than some degree, (for example being lower than 20%) is started to charge, when load voltage is lower than floating charge
When voltage, it is constant-current charge that 51 single-chip microcontroller, which controls the output of battery charger 32, when load voltage reaches float charge voltage
When automatically switch to constant-voltage charge, electricity stops charging after being full of, and can monitor battery capacity and temperature in real time during the charging process
Degree；The rechargeable battery 31 is also that single-chip microcontroller main control unit 40 is powered other than powering for the LED light source 11, when not outer
Also it can guarantee that LED light operates normally enough for a long time when connecing alternating current.
According to different customer groups or practical scene, the settable rechargeable battery 31 is different amount of capacity
Rechargeable battery, in certain extreme environments, it is solar battery that the rechargeable battery 31, which also can be set, by increasing solar energy
Collector plate removes original battery charger 32 and change proper circuit and just can be realized.
In the present embodiment, the frequency adjust unit 50 be equipped with adjusting knob 51 and be connected to the adjusting knob 51 with
Rotary encoder 52 between the single-chip microcontroller main control unit 40；Change the rotary coding by rotating the adjusting knob 51
The different target luminous frequency value K is arranged in the encoded radio of device 52；The single-chip microcontroller main control unit 40 is equipped with microcontroller 41,
51 single-chip microcontrollers preferably can be used, be additionally provided with internal clocking 411, the internal clocking 411 controls the target luminous frequency value
K, the frequency triggering of practical luminous frequency value K '；The light sensor unit 60 is equipped with photosensitive sensor 61, the light sensor
Device 61 acquires the intensity of illumination of the LED light source 11, according to the irradiation time interval or fall time interval of the intensity of illumination,
Obtain the practical luminous frequency value K '.
It is that the frequency-tuning range of above-mentioned adjusting knob 51 may be configured as 0.01~1000Hz, the microcontroller 41 connects
The code conversion of the rotary encoder 52 is received into target luminous frequency value K, is then calculated in the way of T=1/2K described
The duration that LED light source 11 is lighted and extinguished controls the LED light source 11 by the timing function of the internal clocking 411
The on-off of 21 part of switch button on power supply circuit follows T+t time after the connected state of a T+t time
Off-state, wherein t is to finely tune the time, and the calculating of fine tuning time t shines frequently according to the reality that photosensitive sensor 61 measures first
The time deviation e that the deviation of rate value K ' and target luminous frequency value K are calculated, then according to control algolithm (such as PID increment
Type control algolithm) calculate fine tuning time t:
T (k)=q0e (k)+q1e (k-1)+q2e (k-2)
Fine tuning time when wherein t (k) is kth time measurement, e (k), e (k-1), e (k-2) are respectively kth time, kth -1
It is secondary, kth -2 times measurement when time deviation, q0, q1, q2 be proportional integral derivative algorithm coefficient.
Pass through the closed-loop control of photosensitive sensor 61, rotary encoder 52 and single-chip microcontroller main control unit 40 that above-mentioned band is fed back
Structure can accurately adjust the luminous frequency of LED light source 11, so that LED light source 11 is with accurate stable with target luminous frequency value
KK carries out flashing.
In the present embodiment, the display unit 70 is equipped with LCD display 71, in addition to showing above-mentioned target luminous frequency
Value K and practical luminous frequency value K ' outside, are also used to show the battery real time electrical quantity information that the single-chip microcontroller main control unit 40 issues
And battery real time temperature information, relevant information is obtained in time convenient for user, has both been met humanized design and has been in turn ensured information
Publicity and validity have vast application prospect.The LCD display 71 can be selected LCD1602 dot lcd and show
Screen, can show two rows, 16 characters of every row, screen size and indication range can satisfy display demand substantially.
It is a kind of structural schematic diagram of high-precision LED frequency modulation device 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 equipped with LED stock 1, pedestal 2 and the connection pedestal 2
With the bracket 3 of LED stock 1；The pedestal 2, bracket 3 and 1 mounted inside of LED stock have pcb board 4；The pcb board 4 is equipped with
It is the LED luminescence unit 10 corresponding with a kind of above-mentioned high-precision LED frequency modulation system, single-chip microcontroller main control unit 40, photosensitive
Sensing unit 60, frequency adjust unit 50, charging control unit 30, display unit 70 and switch switching unit 20.
Wherein, the bracket 3 is deformable support, and 1 surface of LED stock is equipped with and is fitted into the LED luminescence unit
The LED aperture 5 of 10 LED light source 11；2 surface of pedestal is equipped with the battery charger for being fitted into the charging control unit 30
32 electric wire aperture 6, be fitted into the light sensor unit 60 photosensitive sensor 61 sensor aperture 7, be fitted into the switch
The button aperture 8 of the switch button 21 of switch unit 20, the knob for being fitted into the adjusting knob 51 that the frequency adjusts unit 50 are opened
Hole 9, be fitted into the display unit 70 LCD display 71 LCD aperture 100.
In this way, user can realize user certainly by need to only operate battery charger 32, the button and adjusting knob 51
The High Precision Automatic adjusting of the target luminous frequency value K of setting.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, 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 system is equipped with LED luminescence unit, which is characterized in that the LED luminescence unit connection
Switch switching unit and charging control unit are additionally provided with single-chip microcontroller main control unit, open described in the single-chip microcontroller main control unit connection
It closes switch unit, charging control unit, frequency and adjusts unit, light sensor unit, display unit；
The switch switching unit is provided with switch block, controls the LED by the Switch State Combination in Power Systems of the switch block
Luminescence unit on-off is restarted, and is issued display switch to the single-chip microcontroller main control unit and controlled signal；
The frequency adjusts unit for generating frequency adjusting signals, and target luminous frequency value is arranged；
The light sensor unit is used to measure the practical luminous frequency value of the LED luminescence unit；
The single-chip microcontroller main control unit is used for the deviation according to the practical luminous frequency value and target luminous frequency value, using control
Algorithm processed is adjusted to the practical luminous frequency value of LED luminescence unit to reach target luminous frequency value；
It is aobvious that the single-chip microcontroller main control unit is also used to the display switch control signal control display unit based on the received
Show target luminous frequency value and practical luminous frequency value.
2. a kind of high-precision LED frequency modulation system as described in claim 1, it is characterised in that: the LED luminescence unit is equipped with
LED light source；The switch block of the switch switching unit includes at least one switch button.
3. a kind of high-precision LED frequency modulation system as described in claim 1, it is characterised in that: the charging control unit is set
There is rechargeable battery and is connected to the battery charger of the rechargeable battery positive and negative end and the single-chip microcontroller main control unit.
4. a kind of high-precision LED frequency modulation system as described in claim 1, it is characterised in that: the frequency adjusts unit and sets
The rotary encoder for having adjusting knob and being connected between the adjusting knob and the single-chip microcontroller main control unit；Pass through rotation institute
It states adjusting knob and changes the encoded radio of the rotary encoder and the different target luminous frequency values is set.
5. a kind of high-precision LED frequency modulation system as described in claim 1, it is characterised in that: the single-chip microcontroller main control unit
Equipped with microcontroller and internal clocking, the internal clocking controls the frequency of the target luminous frequency value, practical luminous frequency value
Rate triggering.
6. a kind of high-precision LED frequency modulation system as claimed in claim 2, it is characterised in that: the light sensor unit is set
There is photosensitive sensor, the photosensitive sensor acquires the intensity of illumination of the LED light source, when according to the irradiation of the intensity of illumination
Between be spaced or fall time interval, obtain the practical luminous frequency value.
7. a kind of high-precision LED frequency modulation system as described in claim 1, it is characterised in that: the display unit is equipped with LCD
Display screen is also used to show battery real time electrical quantity information and battery real time temperature information that the single-chip microcontroller main control unit issues.
8. a kind of a kind of high-precision LED frequency modulation lamp of high-precision LED frequency modulation system as described in claim 1, feature
It is, the bracket equipped with LED stock, pedestal and the connection pedestal and LED stock；In the pedestal, bracket and LED stock
Portion is equipped with pcb board；The pcb board is equipped with the LED luminescence unit, single-chip microcontroller main control unit, light sensor unit, frequency
Adjust unit, charging control unit, display unit and switch switching unit.
9. a kind of high-precision LED frequency modulation lamp as claimed in claim 8, it is characterised in that: the bracket is deformable support；
LED stock surface is equipped with the LED aperture for being fitted into the LED light source of the LED luminescence unit；The susceptor surface is equipped with
It is fitted into the electric wire aperture of the AC charger of the charging control unit, the photosensitive sensor that is fitted into the light sensor unit
Sensor aperture, be fitted into the switch switching unit switch button button aperture, be fitted into the tune that the frequency adjusts unit
Save the LCD aperture of the knob aperture of knob, the LCD display for being fitted into the 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 |
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| 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 |
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| CN106658859A CN106658859A (en) | 2017-05-10 |
| CN106658859B true CN106658859B (en) | 2019-01-01 |
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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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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 |
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