CN106455224B - The adaptively luminous generation device of secondary light source and secondary light source adjusting method - Google Patents
The adaptively luminous generation device of secondary light source and secondary light source adjusting method Download PDFInfo
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- CN106455224B CN106455224B CN201610960639.3A CN201610960639A CN106455224B CN 106455224 B CN106455224 B CN 106455224B CN 201610960639 A CN201610960639 A CN 201610960639A CN 106455224 B CN106455224 B CN 106455224B
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- light source
- secondary light
- led
- colour temperature
- circuit
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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]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to lighting technical field, more particularly to the luminous generation device of adaptive secondary light source and secondary light source adjusting method.The adaptive luminous generating means of secondary light source, including detection control apparatus, LED control circuit and secondary light source, detection control apparatus uses the intelligent terminal with camera function, detection control apparatus is carried out data transmission by bluetooth module and LED control circuit, and the brightness colour temperature chrominance information of detection control apparatus collection secondary light source adjusts secondary light source in order to which LED control circuit drives；The present invention detects brightness colour temperature aberration software by mobile phone, according to the setting value of the brightness colour temperature aberration of cameraman, LED auxiliary illuminating devices are sent to by Bluetooth system, pass through colour temperature, value of chromatism caused by the circuit constantly regulate light-emitting device, detect and contrast by mobile phone, the constantly brightness colour temperature aberration difference of diminution and cameraman's setting, the final brightness colour temperature for realizing requirement, the luminous generation device of the secondary light source of value of chromatism.
Description
Technical field
The present invention relates to lighting technical field, more particularly to the luminous generation device of adaptive secondary light source and secondary light source are adjusted
Section method.
Background technology
In modern photography technology, the influence importance of the brightness colour temperature aberration of photographic background light to imaging is self-evident
's.The difference of brightness, directly affect the definition, contrast and artistic effect of photography.The photo-sensitive cell of video camera does not possess
The unique adaptability of human eye, so, the requirement to light source color temperature is stricter.The change of colour temperature must be in defined balance colour temperature
In the range of tolerance, once exceeding the scope, the picture color reduction distortion of video camera recording may result in.The high picture of colour temperature
Partially blue, the low then picture of colour temperature is partially red.The height of light source color temperature also contributes to the light levels of shot by camera scenery color, i.e.,
Same scenery can show different light levels under the light source illumination of different-colour.The colour difference signal of bias light is namely
The trichromatic ratios of RGB will have a strong impact on the color, contrast or the artistic effect of pursuit of imaging.
The content of the invention
In order to solve above-mentioned technical problem, of the invention first purpose is to provide that a kind of effect is good and convenient use
The adaptive luminous generating means of secondary light source, second object of the present invention are to provide a kind of regulation side of adaptive secondary light source
Method.
In order to realize above-mentioned first purpose, present invention employs following technical scheme：
The adaptive luminous generating means of secondary light source, including detection control apparatus, LED control circuit and secondary light source, institute
State detection control apparatus and use the intelligent terminal with camera function, the detection control apparatus is controlled by bluetooth module and LED
Circuit processed carries out data transmission, and the bluetooth module uses CC2540 chips, the detection control apparatus collection secondary light source
Brightness, colour temperature and chrominance information drive adjustment secondary light source in order to LED control circuit；The LED control circuit includes power supply
Circuit, master chip, reset circuit, clock circuit, software unloading circuit and control interface, the power circuit is using 7.5V lithiums electricity
Pond provides the power supply of whole LED control circuit by 78L05 and LM1117-3.3 voltage stabilizings, and the master chip, which uses, to be had
The STM32F103RBT6 chips of 20KFLASH storage programs, the reset circuit use RC reset circuits；The clock circuit is adopted
With 8MHz crystal oscillator dominant frequency, clock uses 32.768KHz；The software unloading circuit uses RS232 serial ports；On the master chip also
It is connected with colour temperature, aberration, intednsity circuit and TFT interface；The secondary light source uses multigroup LED splicing constructions.
Preferably：The secondary light source includes L-type sheet material and high-power paster LED, the high-power paster LED
It is separately positioned on two sides of L-type sheet material and connects the junction of a side.
Preferably：The secondary light source is using eight sections or the end to end structure of six section LED light rods or use
The structure that eight sections or six section LED light rods are connected side by side.
In order to realize above-mentioned second purpose, present invention employs following technical scheme：
A kind of adjusting method of adaptive secondary light source, using mobile phone, LED control circuit, bluetooth module and secondary light source,
Comprise the following steps：
S1. according to different scenes demand, annular secondary light source, L-shaped secondary light source or rectangle secondary light source are selected, and
By LED control circuit with being connected respectively with bluetooth module and secondary light source；
S2. mobile phone and LED control circuit are subjected to multi-point by bluetooth module wireless connection；
S3., the colour temperatures of needs, aberration, brightness value are set on mobile phone, and LED control circuit is sent to by bluetooth；
S4.LED control circuits by the numerical value received with advance debug LED colour temperatures, aberration, required for brightness value
LED voltage virtual value carries out comparison of tabling look-up, and then exports corresponding voltage effective value by PWM ripples to control colour temperature, aberration, root
According to the mutual relation of colour temperature aberration, color temperature value is adjusted first, then the monochromatic LED maximum according to colour temperature is influenceed, to adjust
The aberration ratio of other colors；Finally by the output of Control white light source, it is effective to export corresponding voltage with reference to PWM ripples
Value controls brightness adjustment；
S5. mobile phone detects the colour temperature of secondary light source, aberration, brightness value by camera, and by the numerical value detected with
The numerical value set before compares, if two groups of numerical value are different, return to S4 and continues to adjust, if two groups of numerical value are identical, by the group
Data preserve.
The present invention detects brightness colour temperature aberration software by mobile phone, according to the setting value of the brightness colour temperature aberration of cameraman,
LED auxiliary illuminating devices are sent to by Bluetooth system, pass through colour temperature, aberration caused by the circuit constantly regulate light-emitting device
Value, detect and contrast by mobile phone, constantly reduce the brightness colour temperature aberration difference with cameraman's setting, it is final to realize desired brightness
Colour temperature, the luminous generation device of the secondary light source of value of chromatism.
Brief description of the drawings
Fig. 1 is principle of the invention block diagram.
Fig. 2 is the mini system hardware circuit diagram of the present invention.
Fig. 3 is the bluetooth nodes circuit diagram of the present invention.
Fig. 4 is colour temperature, aberration, intednsity circuit and the TFT interface of the present invention.
Fig. 5 is the workflow diagram of the present invention.
Fig. 6 is the networking flow chart of detection control apparatus of the present invention, LED control circuit and secondary light source.
Fig. 7 is the LED secondary light source structural design drawings of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " clockwise ", " inverse
The orientation or position relationship of the instructions such as hour hands " are based on orientation shown in the drawings or position relationship, are for only for ease of description originally
Invent and simplify description, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " are meant that two
Individual or two or more, limited unless otherwise clear and definite.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；It can be machine
Tool connects or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
The luminous generating means of adaptive secondary light source as shown in Fig. 1-Fig. 7, including detection control apparatus, LED control electricity
Road and secondary light source, the detection control apparatus use the intelligent terminal with camera function, and the detection control apparatus passes through
Bluetooth module carries out data transmission with LED control circuit, and the bluetooth module uses CC2540 chips, the detection control apparatus
Brightness, colour temperature and the chrominance information of secondary light source are gathered in order to which LED control circuit drives adjustment secondary light source；The LED controls
Circuit processed includes power circuit, master chip, reset circuit, clock circuit, software unloading circuit and control interface, the power supply electricity
Road provides the power supply of whole LED control circuit, the main core using 7.5V lithium batteries by 78L05 and LM1117-3.3 voltage stabilizings
Piece uses the STM32F103RBT6 chips with 20KFLASH storage programs, and the reset circuit uses RC reset circuits；It is described
Clock circuit uses 8MHz crystal oscillator dominant frequency, and clock uses 32.768KHz；The software unloading circuit uses RS232 serial ports；It is described
Colour temperature, aberration, intednsity circuit and TFT interface are also associated with master chip；The secondary light source is using multigroup LED splicing knots
Structure.
The secondary light source includes L-type sheet material and high-power paster LED, and the high-power paster LED is separately positioned on L-type
The junction of on two sides of sheet material and company side.The secondary light source can also use eight sections or six section LED light rods first
The connected structure of tail or the structure being connected side by side using eight sections or six section LED light rods.
A kind of adjusting method of adaptive secondary light source, using mobile phone, LED control circuit, bluetooth module and secondary light source,
Comprise the following steps：
S1. according to different scenes demand, annular secondary light source, L-shaped secondary light source or rectangle secondary light source are selected, and
By LED control circuit with being connected respectively with bluetooth module and secondary light source；
S2. mobile phone and LED control circuit are subjected to multi-point by bluetooth module wireless connection；
S3., the colour temperatures of needs, aberration, brightness value are set on mobile phone, and LED control circuit is sent to by bluetooth；
S4.LED control circuits by the numerical value received with advance debug LED colour temperatures, aberration, required for brightness value
LED voltage virtual value carries out comparison of tabling look-up, and then exports corresponding voltage effective value by PWM ripples to control colour temperature, aberration, root
According to the mutual relation of colour temperature aberration, color temperature value is adjusted first, then the monochromatic LED maximum according to colour temperature is influenceed, to adjust
The aberration ratio of other colors；Finally by the output of Control white light source, it is effective to export corresponding voltage with reference to PWM ripples
Value controls brightness adjustment；
S5. mobile phone detects the colour temperature of secondary light source, aberration, brightness value by camera, and by the numerical value detected with
The numerical value set before compares, if two groups of numerical value are different, return to S4 and continues to adjust, if two groups of numerical value are identical, by the group
Data preserve.
The system includes the brightness based on mobile phone, colour temperature and acetes chinensis device, wireless blue tooth receive-transmit system, control LED
Secondary light source luminosity, colour temperature, Difference Control circuit, the LED secondary light source structure designs of innovation.Its design is as follows:
（1）Brightness, colour temperature and acetes chinensis device based on mobile phone
Photometer configuration parameter more by determined using camera system.LED deviators can then be exported by light-metering module or
External test result obtains.Acquiescence test reflected light.Can installation fitting test incident light.Picture is generated fast by Log methods
Door, aperture, ISO and scene are recorded.Suspend light-metering using Hold buttons, temporarily display measures information.Pressed using correction
Button, into calibration mode, the deviation detected between LED groups is corrected.
（2）LED control circuit based on STM32
The circuit realiration function is as follows：1）Embedded system 2 based on STM32）With the multiple spot Bluetooth communication of cell phone application.
3）
Three colors（RGB）LED colour temperature, Difference Control.4）The brilliance control of white light source.
Specific implementation is as follows：
1）Embedded system minimum system based on STM32
The power circuit design, master chip design, reset circuit that the system includes STM32 design, clock circuit designs,
Software download interface design, control interface design.Power circuit design by 7.5 volts of lithium batteries by 78L05 with
And LM1117-3.3 voltage stabilizings export 3.3 volts, there is provided embedded system power supply.Master chip using STM32F103RBT6 chips realize,
The chip has multi-channel A/D, D/A, PWM ripple and serial ports control, is adapted to the control interface type of the circuit.With 20KFLASH
Storage program, it is adapted to programming size.Reset circuit design is realized using RC.Clock circuit is set using 8MHz crystal oscillator dominant frequency
Meter, clock use 32.768KHz, realize highest frequency 72MHz interface rate.Software unloading circuit is real by RS232 serial ports
It is existing.
2）It is as follows with the multiple spot Bluetooth communication implementation of cell phone application：
CC2540 nodes bluetooth module is controlled to realize the protocol networking of bluetooth 4.0 by STM32 embedded systems.In bluetooth
In 4.0 network structures, each equipment has the device address of one 48, and when carrying out networking, slave unit is by broadcasting oneself
Address be sent to main equipment, main equipment obtains slave unit address information and is stored in data structure by scanning, and passes through later
Structure binding needs the specific slave unit to communicate.It is unbinding after the completion of communication.One mobile phone is realized by bluetooth group
To the colour temperature of multiple background light sources, aberration, brilliance control, the purpose of Web control is realized, while improves control
Stability.
3）Three colors（RGB）LED colour temperature Difference Control
First by Bluetooth system, STM32 systems receive the LED colour temperature of cell phone application requirement, aberration, brightness value,
Comparison of tabling look-up is carried out according to the LED colour temperatures debugged in advance, aberration, the LED voltage virtual value required for brightness value, so
Corresponding voltage effective value is exported by PWM ripples to ensure colour temperature, Difference Control afterwards.According to the mutual pass of colour temperature aberration
System, ensures color temperature value first, then the monochromatic LED maximum according to colour temperature is influenceed, to determine the aberration ratio of other two kinds of colors.
The circuit, which includes PWM control voltages, has virtual value and by the overall light on and off of Control and using TFT
The status information of output control node.
4）The brilliance control of white light source
By the output control of Control white light source, it is bright to realize to export corresponding voltage effective value with reference to PWM ripples
Degree adjustment.
（3）The LED secondary light source structure designs of innovation
The LED secondary light sources of in the market use LED light rod structure more, and the structure can cause the overall uniformity of light source to differ
Sample,
Consistent colour temperature value of chromatism is difficult to realize in whole plane.Designed, can significantly changed by following structure
It is apt to this shortcoming.
The three-dimensional installation led in L-shaped or semicircular sheet material：By taking L-type pipe as an example, it is divided into this 3 row led region.Can
To install 3200K yellow, 5500K whites respectively, RGB color, high-power LED paster is as the different types of led such as flash lamp.
Or annular light source is formed using 6 or 8 section led groups, it can also use 6 or 8 section led groups to form rectangular shaped light source, also may be used
Strip source is formed using 6 or 8 section led groups.
By the LED light source structure of different structure, the problem of effectively improving specific region light source parameters uniformity.For
The adaptive luminous generation device of secondary light source produces consistent background light source colour temperature, aberration, brightness value offer structure structure and set
Meter ensures.
There is very strong innovative invention by above-mentioned, provided for the bias light Computer Aided Design of modern photography with automatic
Change, the luminous generation device of the intelligent adaptive secondary light source accurately controlled.
It should be pointed out that above example is only the representative example of the present invention.The present invention can also have many deformations.It is every
Any simple modification, equivalent change and modification that essence according to the present invention makees above example, it is considered as belonging to this
The protection domain of invention.
Claims (4)
- The generating means 1. adaptive secondary light source lights, it is characterised in that：Including detection control apparatus, LED control circuit and auxiliary Light source is helped, the detection control apparatus uses the intelligent terminal with camera function, and the detection control apparatus passes through bluetooth mould Block carries out data transmission with LED control circuit, and the bluetooth module uses CC2540 chips, and the detection control apparatus gathers auxiliary Brightness, colour temperature and the chrominance information of light source are helped in order to which LED control circuit drives adjustment secondary light source；The LED control circuit Including power circuit, master chip, reset circuit, clock circuit, software unloading circuit and control interface, the power circuit uses 7.5V lithium batteries provide the power supply of whole LED control circuit by 78L05 and LM1117-3.3 voltage stabilizings, and the master chip uses STM32F103RBT6 chips with 20KFLASH storage programs, the reset circuit use RC reset circuits；The clock electricity Road uses 8MHz crystal oscillator dominant frequency, and clock uses 32.768KHz；The software unloading circuit uses RS232 serial ports；The master chip On be also associated with colour temperature, aberration, intednsity circuit and TFT interface；The secondary light source uses multigroup LED splicing constructions.
- The generating means 2. adaptive secondary light source according to claim 1 lights, it is characterised in that：The secondary light source bag L-type sheet material and high-power paster LED are included, the high-power paster LED is separately positioned on two sides of L-type sheet material and connected The junction of individual side.
- The generating means 3. adaptive secondary light source according to claim 1 lights, it is characterised in that：The secondary light source is adopted With eight sections or the end to end structure of six section LED light rods or the structure being connected side by side using eight sections or six section LED light rods.
- 4. a kind of adjusting method of adaptive secondary light source, using mobile phone, LED control circuit, bluetooth module and secondary light source, its It is characterised by comprising the following steps：S1. according to different scenes demand, annular secondary light source, L-shaped secondary light source or rectangle secondary light source are selected, and will LED control circuit with bluetooth module and secondary light source with being connected respectively；S2. mobile phone and LED control circuit are subjected to multi-point by bluetooth module wireless connection；S3., the colour temperatures of needs, aberration, brightness value are set on mobile phone, and LED control circuit is sent to by bluetooth；S4.LED control circuits by the numerical value received with advance debug LED colour temperatures, aberration, the LED electricity required for brightness value It is pressed with valid value and carries out comparison of tabling look-up, corresponding voltage effective value is then exported by PWM ripples to control colour temperature, aberration, according to color The mutual relation of warm colour difference, adjusts color temperature value first, then the monochromatic LED maximum according to colour temperature is influenceed, to adjust other The aberration ratio of color；Finally by the output of Control white light source, export corresponding voltage effective value with reference to PWM ripples and come Control brightness adjustment；S5. mobile phone detects the colour temperature of secondary light source, aberration, brightness value by camera, and by the numerical value detected with before The numerical value of setting compares, if two groups of numerical value are different, return to S4 and continues to adjust, if two groups of numerical value are identical, by this group of data Preserve.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110320733B (en) * | 2018-03-30 | 2021-10-15 | 中强光电股份有限公司 | Projection system, light beam generating device thereof and light beam generating method |
| CN109029920A (en) * | 2018-07-18 | 2018-12-18 | 台龙电子（昆山）有限公司 | A kind of detection device with the flexible luminescent screen light source of adjusting |
| CN112148241B (en) * | 2019-06-28 | 2023-09-01 | 百度在线网络技术（北京）有限公司 | Light processing method, device, computing equipment and storage medium |
| CN110621106B (en) * | 2019-10-16 | 2021-08-31 | 肖高利 | Control method for adaptively adjusting brightness, chromaticity and color temperature of lamp source |
| CN114745510B (en) * | 2022-06-13 | 2022-09-09 | 东莞锐视光电科技有限公司 | Automatic LED light source calibration method and system for target image acquisition |
| CN116540293B (en) * | 2023-06-28 | 2023-09-26 | 赛诺威盛科技(北京)股份有限公司 | Method, device and system for testing detector |
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