CN101482232A - Color temperature-adjustable LED lamp and its color temperature adjusting method - Google Patents
Color temperature-adjustable LED lamp and its color temperature adjusting method Download PDFInfo
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- CN101482232A CN101482232A CNA2009100368455A CN200910036845A CN101482232A CN 101482232 A CN101482232 A CN 101482232A CN A2009100368455 A CNA2009100368455 A CN A2009100368455A CN 200910036845 A CN200910036845 A CN 200910036845A CN 101482232 A CN101482232 A CN 101482232A
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Abstract
The invention discloses an LED lamp with adjustable color temperature and a color temperature adjusting method thereof. The LED lamp comprises an LED lamp group and a color temperature adjusting device; the color temperature adjusting device comprises a DMX512 control stand and a circuit board; the LED group comprises LED lamp bodies with different colors or color temperatures; a CPU is arranged on the circuit board and the CPU is respectively connected with a control panel, a display module, a memory, the DMX512 control stand and the LED lamp group; the control panel is provided with an assignment button for assigning the CPU. The read/write mode of the memory is changed to cause the CPU to carry out read/write operation on the memory, the brightness level figure is input by the evaluation button on the control board to drive the LED lamp bodies in the LED lamp group to illuminate and the brightness level figure is considered as a default value or modified value, thus the overall color temperature of the LED lamp group is changed.
Description
Technical field
The present invention relates to the LED lighting field, especially a kind of by the LED lamp of LED lamp group one-tenth and the colour temperature control method of this LED lamp.
Background technology
Because the LED light fixture is more superior than existing incandescent lamp and electricity-saving lamp performance, the LED lamp has replaced incandescent lamp and electricity-saving lamp gradually in the every field of illumination, in the field that some illumination is had relatively high expectations, as light of stage, TV light, shooting light etc., the LED lamp can both reach gratifying effect.Though LED lamp performance is in every respect all played very well, still there is inferior position for the changeability of LED lamp self colour temperature, the light emission color temperature of most LED lamps all is just to configure before product export, so the colour temperature of LED lamp also just is fixed; But because the characteristics of luminescence of LED and circuit characteristic is not quite identical or the difference of manufacturing process and the LED lamp colour temperature after having used of a specified duration also might change.When wanting many LED lamps to send identical colour temperature, be impossible basically, although the colour temperature of every LED lamp is a fine distinction, but for the demanding place of light, these trickle colour temperature difference also are unallowed.
Summary of the invention
Technical problem to be solved by this invention provides a kind of colour temperature adjustable LED lamp and colour temperature control method thereof, can change the colour temperature of LED lamp, and sets up needed color temperature value on their own.
For solving the problems of the technologies described above, a technical scheme of the present invention is: a kind of colour temperature adjustable LED lamp, comprise LED lamp group, colour temperature adjusting device, described colour temperature adjusting device comprises DMX512 console, circuit board, described LED lamp group comprises the LED lamp body of different colours or colour temperature, described circuit board is provided with CPU, and described CPU is connected with control panel, display module, holder, DMX512 console, LED lamp group respectively; Described control panel is provided with the assignment button to the holder assignment, and described memory is the electric erasable holder.
As improvement, described electric erasable holder is I
2C serial ports EEPROM, and be I between holder and the CPU
2The C bus connects.
Another technical scheme of the present invention is: a kind of colour temperature control method of colour temperature adjustable LED lamp, CPU can be to I
2C serial ports EEPROM carries out read-write operation, by the assignment button on the control panel to CPU input as the luminous gray scale numerical value of LED lamp body among the driving LED lamp group as preset value or modification value, the numerical value input range of this assignment button is 0～255; Its colour temperature regulating step is:
(1) LED lamp preset color temperature value step:
(a) press the assignment button, the luminosity rank of default LED lamp body, the luminosity rank of the corresponding LED lamp body of the button inputted numerical value of assignment makes the LED lamp body have 0～255 adjustable brightness rank, simultaneously, CPU shows the gray scale numerical value of input by display module; The assignment button is respectively to the default luminosity rank of all LED lamp body inputs among the lamp LED group;
(b) use photometer to measure the colour temperature of the LED lamp group in adjustment, when LED lamp group colour temperature than predetermined value height, enter step with c; When LED lamp group colour temperature is lower than predetermined value, enter the d step;
(c) turn down gray scale numerical value input with high colour temperature LED lamp body, heighten gray scale numerical value input simultaneously with low colour temperature LED lamp body, make LED lamp group's overall colour temperature decline and reach predetermined value, the gray scale value storage that CPU is imported the assignment button arrives I
2In the C serial ports EEPROM correspondence position, and this group numerical value is provided with an ID address; When needs LED lamp is mass-sended out specific colour temperature, enter the e step; Otherwise, when being higher than desirable value, colour temperature repeats this step, when being lower than desirable value, colour temperature enters the d step;
(d) heighten gray scale numerical value input with low colour temperature LED lamp body, turn down gray scale numerical value input simultaneously with high colour temperature LED lamp body, make LED lamp group's overall colour temperature rising and reach predetermined value, the gray scale value storage that CPU is imported the assignment button arrives I
2In the C serial ports EEPROM correspondence position, and this group numerical value is provided with an ID address; When needs LED lamp is mass-sended out specific colour temperature, enter the e step afterwards; Otherwise, when being lower than desirable value, colour temperature repeats this step, when being higher than desirable value, colour temperature enters the c step;
(e) send instruction by the DMX console to CPU, CPU is from I
2Read the numerical value of corresponding ID address among the C serial ports EEPROM, and the brightness of sending same level with this gray scale numerical value driving LED lamp body.
(2) modify steps is as follows again for LED light color temperature:
(f) use photometer to measure LED lamp group's colour temperature, show by the gray scale numerical value of display module with LED lamp body among the LED lamp group, when LED lamp group colour temperature than predetermined value height, enter the g step, when LED lamp group colour temperature is lower than predetermined value, enter the h step;
(g) turn down gray scale numerical value input with high colour temperature LED lamp body, heighten gray scale numerical value input simultaneously with low colour temperature LED lamp body, make LED lamp group's overall colour temperature decline and reach predetermined value, the gray scale value storage that CPU is imported the assignment button arrives I
2In the C serial ports EEPROM correspondence position, and this group numerical value is provided with an ID address; When needs LED lamp is mass-sended out specific colour temperature, enter the i step; Otherwise, when being higher than desirable value, colour temperature repeats this step, when being lower than desirable value, colour temperature enters the h step;
(h) heighten gray scale numerical value input with low colour temperature LED lamp body, turn down gray scale numerical value input simultaneously with high colour temperature LED lamp body, make LED lamp group's overall colour temperature rising and reach predetermined value, the gray scale value storage that CPU is imported the assignment button arrives I
2In the C serial ports EEPROM correspondence position, and this group numerical value is provided with an ID address; When needs LED lamp is mass-sended out specific colour temperature, enter the i step afterwards; Otherwise, when being lower than desirable value, colour temperature repeats this step, when being higher than desirable value, colour temperature enters the g step;
(i) send instruction by the DMX console to CPU, CPU is from I
2Read the numerical value of corresponding ID address among the C serial ports EEPROM, and the brightness of sending same level with this gray scale numerical value driving LED lamp body.
The beneficial effect that the present invention is compared with prior art brought is:
Changed the read-write mode of memory, and make CPU carry out read-write operation to memory, by the assignment button on the control panel to CPU input as the luminous gray scale numerical value of LED lamp body among the driving LED lamp group as preset value or modification value, thereby the whole colour temperature of LED lamp is changed.
Description of drawings
Fig. 1 is an electrical connection diagram of the present invention.
The specific embodiment
The invention will be further described below in conjunction with Figure of description.
Embodiment 1
A kind of colour temperature adjustable LED lamp comprises LED lamp group 5, colour temperature adjusting device, and described colour temperature adjusting device comprises DMX512 console 2, circuit board (not indicating).The LED lamp body that comprises three kinds of colors of red, green, blue among the described LED lamp group 5, described circuit board is provided with CPU 1, described CPU 1 is connected with control panel 3, display module 6, memory 4, DMX512 console 2, LED lamp group 5 respectively, and the memory 4 in the present embodiment is I
2C serial ports EEPROM.Described control panel 3 is provided with three assignment buttons, and three assignment button numerical value input ranges are 0～255, and the assignment button can pass through 1 couple of I of CPU
2C serial ports EEPROM carries out the numerical value input.The gray scale numerical value input of the corresponding red LED lamp body of the first assignment button, the gray scale numerical value input of the corresponding green LED lamp body of the second assignment button, the gray scale numerical value input of the corresponding blue led lamp body of the 3rd assignment button.
The color temperature control method of described colour temperature adjustable LED lamp is as follows:
Before dispatching from the factory, LED light color temperature is determined at 3200K, needed respectively the gray scale of three kinds of color lamp bodies among the LED lamp group 5 to be imported as need.At first the red LED lamp body is done the input of gray scale, pressed the first assignment button, send a pulse to CPU 1, the gray scale numerical value of input red LED lamp body makes the gray scale of red LED lamp body be in a certain fixed numbers; The green LED lamp body is done the input of gray scale, press the second assignment button, send another pulse to CPU 1, the gray scale numerical value of input green LED lamp body makes the gray scale of green LED lamp body be in a certain fixed numbers; The blue led lamp body is done the input of gray scale, press the 3rd assignment button, send another pulse to CPU 1, the gray scale numerical value of input blue led lamp body makes the gray scale of blue led lamp body be in a certain fixed numbers; Measure LED lamp group 5 color temperature value, and adjust the gray scale numerical value of three kinds of color LED lamp bodies repeatedly, after LED lamp group 5 colour temperatures reach 3200K, stop the assignment action of assignment button to LED lamp body gray scale, the gray scale that can draw three kinds of color LED of red, green, blue lamp body this moment is respectively 255,254,69.Shown in display module 6 by CPU 1 by button inputted three the gray scale numerical value of assignment, CPU 1 is latched into I with these three numerical value
2In the C serial ports EEPROM, and this group numerical value is provided with an ID address.According to above-mentioned same operation, can be at I
2Store the gray scale numerical value of many group colour temperature correspondences in the C serial ports EEPROM.
When needs LED lamp sent the 3200K color temperature value, 2 couples of CPU 1 sent instruction by the DMX512 console, and CPU 1 is from I
2Reading among the C serial ports EEPROM and storing colour temperature is the numerical value of 3200K corresponding ID address, the numerical value 255,254,69 that comprises three gray scales of red, green, blue in this ID address, CPU 1 is with the LED lamp body of three kinds of colors among this gray scale numerical value driving LED lamp group 5, make that three kinds of LED lamp bodies of red, green, blue are luminous with the ratio of 255:254:69, the light emission color temperature of LED lamp is 3200K.
Embodiment 2
A kind of colour temperature adjustable LED lamp comprises LED lamp group 5, colour temperature adjusting device, and described colour temperature adjusting device comprises DMX512 console 2, circuit board (not indicating).The white light LEDs lamp body that comprises two kinds of different-colours among the described LED lamp group 5, described circuit board is provided with CPU 1, described CPU 1 is connected with control panel 3, display module 6, memory 4, DMX512 console 2, LED lamp group 5 respectively, and the memory 4 in the present embodiment is I
2C serial ports EEPROM.Described control panel 3 is provided with two assignment buttons, and two assignment button numerical value input ranges are 0～255, and the assignment button can pass through 1 couple of I of CPU
2C serial ports EEPROM carries out numerical value to be revised.The gray scale numerical value of the corresponding high colour temperature white LED lamp body of the first assignment button is revised, and the gray scale numerical value of the corresponding low color temperature white light LED lamp body of the second assignment button is revised.
The color temperature control method of described colour temperature adjustable LED lamp is as follows:
The colour temperature of dispatching from the factory is the LED lamp of 3200K, because service time is long, its light emission color temperature can be lower than normal 3200K, needs its colour temperature is adjusted on the 3200K colour temperature once more.Gray scale to the white light LEDs lamp body of two kinds of different-colours among the LED lamp group 5 makes an amendment respectively.At first high colour temperature white LED lamp body is done the modification of gray scale, press the first assignment button, send a pulse to CPU 1, revise the gray scale numerical value of high colour temperature white LED lamp body, make the gray scale of high colour temperature white LED lamp body be in a certain fixed numbers again; The low color temperature white light LED lamp body is done the modification of gray scale, press the second assignment button, send another pulse to CPU 1, revise the gray scale numerical value of low color temperature white light LED lamp body, make the gray scale of low color temperature white light LED lamp body be in a certain fixed numbers again.After finishing whole modifications, measure LED lamp group 5 color temperature value, and adjust the gray scale numerical value of two kinds of different-colour LED lamp bodies repeatedly.After LED lamp group 5 colour temperatures reach 3200K, stop of the modification action of assignment button to LED lamp body gray scale, the gray scale that can draw high and low two kinds of different-colour white light LEDs lamp bodies this moment is respectively 253,100.Two gray scale numerical value being revised by the assignment button show in display module 6 by CPU 1, and CPU 1 is latched into I again with these two numerical value
2C serial ports EEPROM correspondence position.
The present invention has changed the read-write mode of memory 4, and makes CPU 1 carry out read-write operation to memory 4, changes by the numerical value to each LED lamp body gray scale, thereby the whole colour temperature of LED lamp is changed.
Claims (5)
1. colour temperature adjustable LED lamp, comprise LED lamp group, colour temperature adjusting device, described colour temperature adjusting device comprises DMX512 console, circuit board, described LED lamp group comprises the LED lamp body of different colours or colour temperature, described circuit board is provided with CPU, and described CPU is connected with control panel, display module, holder, DMX512 console, LED lamp group respectively; It is characterized in that: described control panel is provided with the assignment button to the holder assignment, and described memory is the electric erasable holder.
2. a kind of colour temperature adjustable LED lamp according to claim 1 is characterized in that: described electric erasable holder is I
2C serial ports EEPROM, and be I between holder and the CPU
2The C bus connects.
3. the colour temperature control method of a colour temperature adjustable LED lamp, it is characterized in that: CPU can be to I
2C serial ports EEPROM carries out read-write operation, by the assignment button on the control panel to CPU input as the luminous gray scale numerical value of LED lamp body among the driving LED lamp group as preset value or modification value, the numerical value input range of this assignment button is 0～255.
4. the colour temperature control method of a colour temperature adjustable LED lamp as claimed in claim 3 is characterized in that: concrete regulating step comprises:
(a) press the assignment button, the luminosity rank of default LED lamp body, the luminosity rank of the corresponding LED lamp body of the button inputted numerical value of assignment makes the LED lamp body have 0～255 adjustable brightness rank, simultaneously, CPU shows the gray scale numerical value of input by display module; The assignment button is respectively to the default luminosity rank of all LED lamp body inputs among the lamp LED group;
(b) use photometer to measure the colour temperature of the LED lamp group in adjustment, when LED lamp group colour temperature than predetermined value height, enter step with c; When LED lamp group colour temperature is lower than predetermined value, enter the d step;
(c) turn down gray scale numerical value input with high colour temperature LED lamp body, heighten gray scale numerical value input simultaneously with low colour temperature LED lamp body, make LED lamp group's overall colour temperature decline and reach predetermined value, the gray scale value storage that CPU is imported the assignment button arrives I
2In the C serial ports EEPROM correspondence position, and this group numerical value is provided with an ID address; When needs LED lamp is mass-sended out specific colour temperature, enter the e step; Otherwise, when being higher than desirable value, colour temperature repeats this step, when being lower than desirable value, colour temperature enters the d step;
(d) heighten gray scale numerical value input with low colour temperature LED lamp body, turn down gray scale numerical value input simultaneously with high colour temperature LED lamp body, make LED lamp group's overall colour temperature rising and reach predetermined value, the gray scale value storage that CPU is imported the assignment button arrives I
2In the C serial ports EEPROM correspondence position, and this group numerical value is provided with an ID address; When needs LED lamp is mass-sended out specific colour temperature, enter the e step afterwards; Otherwise, when being lower than desirable value, colour temperature repeats this step, when being higher than desirable value, colour temperature enters the c step;
(e) send instruction by the DMX console to CPU, CPU is from I
2Read the numerical value of corresponding ID address among the C serial ports EEPROM, and the brightness of sending same level with this gray scale numerical value driving LED lamp body.
5. the colour temperature control method of a colour temperature adjustable LED lamp as claimed in claim 3 is characterized in that:
Concrete regulating step comprises:
(f) use photometer to measure LED lamp group's colour temperature, show by the gray scale numerical value of display module with LED lamp body among the LED lamp group, when LED lamp group colour temperature than predetermined value height, enter the g step, when LED lamp group colour temperature is lower than predetermined value, enter the h step;
(g) turn down gray scale numerical value input with high colour temperature LED lamp body, heighten gray scale numerical value input simultaneously with low colour temperature LED lamp body, make LED lamp group's overall colour temperature decline and reach predetermined value, the gray scale value storage that CPU is imported the assignment button arrives I
2In the C serial ports EEPROM correspondence position, and this group numerical value is provided with an ID address; When needs LED lamp is mass-sended out specific colour temperature, enter the i step; Otherwise, when being higher than desirable value, colour temperature repeats this step, when being lower than desirable value, colour temperature enters the h step;
(h) heighten gray scale numerical value input with low colour temperature LED lamp body, turn down gray scale numerical value input simultaneously with high colour temperature LED lamp body, make LED lamp group's overall colour temperature rising and reach predetermined value, the gray scale value storage that CPU is imported the assignment button arrives I
2In the C serial ports EEPROM correspondence position, and this group numerical value is provided with an ID address; When needs LED lamp is mass-sended out specific colour temperature, enter the i step afterwards; Otherwise, when being lower than desirable value, colour temperature repeats this step, when being higher than desirable value, colour temperature enters the g step;
(i) send instruction by the DMX console to CPU, CPU is from I
2Read the numerical value of corresponding ID address among the C serial ports EEPROM, and the brightness of sending same level with this gray scale numerical value driving LED lamp body.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102141210A (en) * | 2010-02-01 | 2011-08-03 | 深圳市光峰光电技术有限公司 | High color rendering index and high-brightness light lighting equipment and method for realizing multi color temperature regulation |
| CN103237385A (en) * | 2013-04-17 | 2013-08-07 | 深圳市秀骑士科技有限公司 | Remote control device and method for DMX (digital multiplex) decoder |
| CN103826368A (en) * | 2014-02-27 | 2014-05-28 | 大峡谷光电科技（苏州）有限公司 | LED lighting lamp color temperature and brightness adjusting control method without mutual influence |
| CN104168689A (en) * | 2014-05-04 | 2014-11-26 | 广东工业大学 | LED lamp control device and LED lamp control method |
| CN105444058A (en) * | 2015-12-22 | 2016-03-30 | 广州市升龙灯光设备有限公司 | Stage lamp adjusting device and control method thereof |
| CN106061014A (en) * | 2016-06-08 | 2016-10-26 | 广州市升龙灯光设备有限公司 | Linear color temperature database construction method, color temperature adjusting method and device and LED lamp |
| CN108596972A (en) * | 2018-04-28 | 2018-09-28 | 上海与德科技有限公司 | A kind of light adjusting method, device, intelligent desk lamp and storage medium |
| CN109340603A (en) * | 2018-11-29 | 2019-02-15 | 常州市友晟电子有限公司 | A kind of glare index adjustable luminaire and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102141210A (en) * | 2010-02-01 | 2011-08-03 | 深圳市光峰光电技术有限公司 | High color rendering index and high-brightness light lighting equipment and method for realizing multi color temperature regulation |
| CN103237385A (en) * | 2013-04-17 | 2013-08-07 | 深圳市秀骑士科技有限公司 | Remote control device and method for DMX (digital multiplex) decoder |
| CN103826368A (en) * | 2014-02-27 | 2014-05-28 | 大峡谷光电科技（苏州）有限公司 | LED lighting lamp color temperature and brightness adjusting control method without mutual influence |
| CN103826368B (en) * | 2014-02-27 | 2015-09-16 | 大峡谷光电科技（苏州）有限公司 | The control method that LED illumination lamp colour temperature and brightness adjustment are independent of each other |
| CN104168689A (en) * | 2014-05-04 | 2014-11-26 | 广东工业大学 | LED lamp control device and LED lamp control method |
| CN105444058A (en) * | 2015-12-22 | 2016-03-30 | 广州市升龙灯光设备有限公司 | Stage lamp adjusting device and control method thereof |
| CN106061014A (en) * | 2016-06-08 | 2016-10-26 | 广州市升龙灯光设备有限公司 | Linear color temperature database construction method, color temperature adjusting method and device and LED lamp |
| CN106061014B (en) * | 2016-06-08 | 2018-03-06 | 广州市升龙灯光设备有限公司 | Linear colour temperature database construction method, color temperature adjusting method and device, LED lamp |
| CN108596972A (en) * | 2018-04-28 | 2018-09-28 | 上海与德科技有限公司 | A kind of light adjusting method, device, intelligent desk lamp and storage medium |
| CN109340603A (en) * | 2018-11-29 | 2019-02-15 | 常州市友晟电子有限公司 | A kind of glare index adjustable luminaire and its control method |
| CN111800923A (en) * | 2020-06-05 | 2020-10-20 | 深圳市晟瑞科技有限公司 | Light control method and device, readable storage medium and terminal equipment |
| CN111800923B (en) * | 2020-06-05 | 2023-05-12 | 深圳市晟瑞科技有限公司 | Light control method and device, readable storage medium and terminal equipment |
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