CN105323928A - Color temperature adjusting system and method for LED - Google Patents
Color temperature adjusting system and method for LED Download PDFInfo
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- CN105323928A CN105323928A CN201510753669.2A CN201510753669A CN105323928A CN 105323928 A CN105323928 A CN 105323928A CN 201510753669 A CN201510753669 A CN 201510753669A CN 105323928 A CN105323928 A CN 105323928A
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Abstract
The invention discloses a color temperature adjusting system and method for an LED. The color temperature adjusting system comprises a keyboard control circuit for giving out a color temperature adjusting instruction, a main control chip for giving out a driving pulse signal to an LED lamp according to the color temperature adjusting instruction, an LED driving circuit for receiving and processing the driving pulse signal, and an LED lamp panel for adjusting the luminance of the LED lamp according to the processed driving pulse signal, wherein the LED lamp panel comprises two group of LED lamps with different color temperatures; the color temperature adjusting for hybrid lights from the LED lamp panel can be realized by adjusting the luminance ratio of the LED lamps with different color temperatures; and therefore, the LED color temperature adjusting is realized to cater to visual enjoyment of users.
Description
Technical field
The present invention relates to LED light source technical field, particularly relate to a kind of color temperature adjusting system and method.
Background technology
Single led light source color temperature is fixed, and can not regulate, can not realize the comfort conditioned of light source color temperature according to the demand of user, adapts to people at the visual experience of different time to light.
Summary of the invention
The object of the invention is to propose a kind of LED color temperature adjusting system and method, the colour temperature being realized the mixed light that LED lamp panel sends by the brightness ratio of the LED regulating different-colour is regulated, and realizes intelligent lighting, adapts to the visual experience of people.
For reaching this object, the present invention by the following technical solutions:
On the one hand, the present invention proposes a kind of LED color temperature adjusting system, comprising:
Send the keyboard control circuit of colour temperature regulating command, the main control chip of the drive pulse signal controlling LED is provided according to described colour temperature regulating command, receive and process the LED drive circuit of described drive pulse signal, with the LED lamp panel regulating described LED brightness according to the drive pulse signal after process, described LED lamp panel comprises the LED of two groups of different-colours.
Wherein, described LED is white lamps, and wherein the colour temperature of one group of LED is 3000K, and the colour temperature of other one group of LED is 9000K.
Wherein, described LED drive circuit has two groups, for driving the LED of two groups of different-colours respectively, regulates the brightness ratio of the LED of two groups of different-colours according to the drive pulse signal after process.
Wherein, described keyboard control circuit comprises seven buttons.
Wherein, also comprise for the LCD of displaying time, LED brightness, function setting and described working state of system and provide the backlight of substrate light source for LCD, described backlight connects the output of described main control chip.
Wherein, also comprise the AC/DC testing circuit whether detection has external power supply, described AC/DC testing circuit connects the input of described main control chip.
On the other hand, the present invention proposes a kind of LED color temperature adjusting method, comprising:
Obtain the colour temperature regulating command of LED light source;
Main control chip receives and processes described colour temperature regulating command, sends the drive pulse signal of the LED controlling different-colour in described LED light source;
LED drive circuit receives and processes described drive pulse signal, sends to the LED of different-colour to regulate the brightness of described LED the drive pulse signal after process.
Wherein, the colour temperature regulating command of described acquisition LED light source is specially: the colour temperature regulating command being obtained LED light source by keyboard control circuit.
Wherein, the LED of described different-colour comprises LED that one group of colour temperature is 3000K and outer one group of colour temperature is the LED of 9000K;
Described main control chip receives and processes described colour temperature regulating command, the drive pulse signal sending the LED controlling different-colour in described LED light source is specially: described main control chip receives and processes described colour temperature regulating command, sends the drive pulse signal that two-way is respectively used to the LED of control two groups of different-colours.
Wherein, described LED drive circuit receives and processes described drive pulse signal, send to the LED of different-colour to be specially to regulate the brightness of described LED the drive pulse signal after process: described LED drive circuit receives and processes the drive pulse signal that two-way is respectively used to the LED of control two groups of different-colours, send to the LED of two groups of different-colours to regulate the brightness ratio of the described LED of two groups of different-colours respectively the drive pulse signal after process.
The beneficial effect that technical scheme provided by the invention is brought:
LED color temperature adjusting system of the present invention and method, comprise the keyboard control circuit sending colour temperature regulating command, the main control chip of the drive pulse signal controlling LED is provided according to described colour temperature regulating command, receive and process the LED drive circuit of described drive pulse signal, with the LED lamp panel regulating described LED brightness according to the drive pulse signal after described process, described LED lamp panel comprises the LED of two groups of different-colours; The colour temperature being realized the mixed light that LED lamp panel sends by the brightness ratio of the LED regulating different-colour is regulated, and realizes intelligent lighting, adapts to the visual experience of people.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of LED color temperature adjusting system provided by the invention.
Fig. 2 is the method flow diagram of LED color temperature adjusting method provided by the invention.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Embodiment one
See the system construction drawing that Fig. 1, Fig. 1 are LED color temperature adjusting systems provided by the invention.
In a first embodiment, this LED color temperature adjusting system comprises:
Send the keyboard control circuit 01 of colour temperature regulating command, the main control chip 02 of the drive pulse signal controlling LED is provided according to described colour temperature regulating command, receive and process the LED drive circuit 03 of described drive pulse signal, with the LED lamp panel 04 regulating described LED brightness according to the drive pulse signal after described process, described LED lamp panel 04 comprises the LED of two groups of different-colours.
The LED of different-colour the difference mixing of component can produce the mixed light of new different-colour shared by it, carry out regulating to the component of the LED of different-colour and can realize its mixed light sent consecutive variations in certain color temperature regions, to adapt to the regulatory demand of light source to colour temperature, the change of component just can be realized by the brightness controlling LED.The colour temperature regulating circuit of LED light source of the present invention, according to the colour temperature regulating command that keyboard control circuit 01 sends, obtain the drive pulse signal of the LED of two groups of different-colours, the corresponding brightness ratio regulating two groups of LED respectively, the colour temperature of LED lamp panel is regulated, the single-chip microcomputer of above-mentioned main control chip to be model be EM78P510N while changing the mixed light component that two groups of LED send.
Described LED is white lamps, and wherein the colour temperature of one group of LED is 3000K, and the colour temperature of other one group of LED is 9000K.
LED lamp panel 04 comprises two white lamps groups, and each white lamps group comprises the identical LED of 3 colour temperatures, and the colour temperature of the LED of the first white lamps group 041 is 3000K, and the colour temperature of the second white lamps group 042LED lamp is 9000K.
Above-mentioned keyboard control circuit 01 has seven buttons, realize the functions such as setting, control and brightness regulation respectively, under manual adjustment mode, the colour temperature that can realize 3000K, 6500K and 9000K tri-gears regulates, in automatic mode, can be realized the automatic adjustment of these three gears by timer, the different time is corresponding with the color temperature value of LED lamp panel, realized by the software in main control chip 02, as the colour temperature of the LED lamp panel after at 7 in evening is adjusted to 7000K automatically.
Described LED drive circuit has two groups, for driving the LED of two groups of different-colours respectively, regulates the brightness ratio of the LED of two groups of different-colours according to the drive pulse signal after process.
After main control chip 02 receives colour temperature regulating command, the two-way pulse drive signal being respectively used to regulate the brightness of above-mentioned white lamps group is drawn by treatment and analysis, this two-way pulse drive signal is sent to two groups of LED drive circuits respectively, often organize LED drive circuit group and comprise 3 LED drivings, first LED drive circuit 031 is for controlling 3 white led lamps that colour temperature is 3000K, and the second LED drive circuit 032 is for controlling 3 white led lamps that colour temperature is 9000K.Above-mentioned pulse drive signal is potential pulse drive singal, and the effective value of this potential pulse drive singal is larger, and the brightness of the corresponding LED controlled is higher.
The pulse drive signal that colour temperature is the second white lamps group 042 of 9000K if strengthen, reduce the pulse drive signal that colour temperature is the first white lamps group 041 of 3000K, under the light immixture of two kinds of different-colours, the colour temperature of LED lamp panel 04 is close to 9000K, otherwise then close to 3000K, by regulating the brightness of two white lamps groups, the continuous colour temperature that LED lamp panel 04 can realize 3000K ~ 9000K white light regulates, comprising the color temperature regions 3000K ~ 6500K of sunlight, to adapt to the visual experience of people.
This system also comprises for the LCD05 of displaying time, LED brightness, function setting and described working state of system and provides the backlight 06 of substrate light source for LCD05, and described backlight 06 connects the output of described main control chip 02.The liquid crystal on LCD (LCDs) its surface itself is not luminous, needs the light source by being arranged on after it, controls the percent of pass of light thus realize different images by the rotational angle of liquid crystal molecule.
This system also comprises the AC/DC testing circuit 07 whether detection has external power supply.If main control chip 02 does not connect external power supply 10, system stalls, main control chip keeps timing and service data, and chip operation is at low power consumpting state, and main control chip 02 is connected with LCD05 with 8 SEG terminals by 4 COM terminals, the display of control LCD05.External power supply 10 is the DC power supply of 5V/1000ma, this external power supply 10 connects the power module 11 of LED drive circuit 03 and main control chip 02 respectively, the direct current that this power module 11 exports 5V/150ma is respectively AC/DC testing circuit 07, backlight 06, buzzer 08 and battery 12 and powers, wherein, the direct current that battery 12 exports 3.5V provides power supply for main control chip 02, when main control chip 02 does not connect external power supply 10, be its power supply by battery, chip enters low power consumpting state.
When arrange timing then, main control chip 02 sends signal controlling buzzer 08 and sends alerting signal, and the colour temperature of LED lamp panel changes automatically in time according to Operation system setting.Reset circuit 09 is connected with main control chip 02, and user at system jam or when needing to carry out system reset, can be resetted by reset circuit 09 pair of system.
To sum up, LED color temperature adjusting system of the present invention, the drive pulse signal of the LED of different-colour is regulated by keyboard, thus regulate its brightness ratio, the colour temperature realizing the mixed light that LED lamp panel sends regulates, the operating state of this system being shown for being checked on LCD simultaneously, the continuous colour temperature of white light of real 3000K ~ 9000K can regulate, adapting to the visual experience of people.
Embodiment two
See the method flow diagram that Fig. 2, Fig. 2 are LED color temperature adjusting methods provided by the invention.
In a second embodiment, this LED color temperature adjusting method comprises:
S01, obtains the colour temperature regulating command of LED light source by keyboard control circuit;
S02, main control chip receives and processes described colour temperature regulating command, sends the drive pulse signal of the LED controlling different-colour in described LED light source;
The LED of above-mentioned two groups of different-colours is respectively: the white lamps group of colour temperature to be the white lamps group of 3000K and colour temperature be 9000K, if the instruction that this keyboard control circuit provides is that the colour temperature of LED lamp panel is adjusted to 6500K, main control chip receives this regulating command, component shared in mixed light when above-mentioned two lamp groups form aim colour temperature value is obtained by computing, this component corresponds to the brightness of white lamps group, brightness is higher compared with another group, component is larger, thus is regulated by the colour temperature regulating the brightness of two white lamps groups to realize the mixed light that LED lamp panel sends respectively.
S03, LED drive circuit receives and processes the drive pulse signal that two-way is respectively used to the LED of control two groups of different-colours, sends to the LED of two groups of different-colours to regulate the brightness ratio of the described LED of two groups of different-colours respectively the drive pulse signal after process.
After main control chip exports the drive pulse signal of LED, amplify through LED drive circuit, LED is sent to after the signal transacting such as filtering, main control chip exports the drive pulse signal that two-way is respectively used to control two white lamps groups, by the pulse voltage of the white lamps group that regulates two colour temperatures different, thus changing its brightness ratio, the colour temperature realizing combined light regulates.
To sum up, the color temperature adjusting method of LED light source of the present invention, obtain the colour temperature regulating command of LED light source, main control chip receives and processes described colour temperature regulating command, send the drive pulse signal controlling LED, LED drive circuit receives and processes described drive pulse signal, sends to the LED of different-colour to regulate the brightness of described LED the drive pulse signal after process; By regulating the drive pulse signal of the LED of different-colour, thus regulate its brightness ratio, the colour temperature realizing the mixed light that LED lamp panel sends regulates, and realizes intelligent lighting, adapts to the visual experience of people.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. a LED color temperature adjusting system, it is characterized in that, comprise the keyboard control circuit sending colour temperature regulating command, the main control chip of the drive pulse signal controlling LED is provided according to described colour temperature regulating command, receive and process the LED drive circuit of described drive pulse signal, with the LED lamp panel regulating described LED brightness according to the drive pulse signal after process, described LED lamp panel comprises the LED of two groups of different-colours.
2. system according to claim 1, is characterized in that, described LED is white lamps, and wherein the colour temperature of one group of LED is 3000K, and the colour temperature of other one group of LED is 9000K.
3. circuit according to claim 1, is characterized in that, described LED drive circuit has two groups, for driving the LED of two groups of different-colours respectively, regulates the brightness ratio of the LED of two groups of different-colours according to the drive pulse signal after process.
4. system according to claim 1, is characterized in that, described keyboard control circuit comprises seven buttons.
5. system according to claim 1, it is characterized in that, also comprise for the LCD of displaying time, LED brightness, function setting and described working state of system and provide the backlight of substrate light source for LCD, described backlight connects the output of described main control chip.
6. system according to claim 1, is characterized in that, also comprise the AC/DC testing circuit whether detection has external power supply, described AC/DC testing circuit connects the input of described main control chip.
7. a LED color temperature adjusting method, is characterized in that, comprising:
Obtain the colour temperature regulating command of LED light source;
Main control chip receives and processes described colour temperature regulating command, sends the drive pulse signal of the LED controlling different-colour in described LED light source;
LED drive circuit receives and processes described drive pulse signal, sends to the LED of different-colour to regulate the brightness of described LED the drive pulse signal after process.
8. method according to claim 7, is characterized in that, the colour temperature regulating command of described acquisition LED light source is specially: the colour temperature regulating command being obtained LED light source by keyboard control circuit.
9. method according to claim 7, is characterized in that, described LED light source comprises the LED that LED that one group of colour temperature is the white of 3000K and other one group of colour temperature are the white of 9000K, regulates with the continuous colour temperature realizing 3000K ~ 9000K white light;
Described main control chip receives and processes described colour temperature regulating command, the drive pulse signal sending the LED controlling different-colour in described LED light source is specially: main control chip receives and processes described colour temperature regulating command, sends the drive pulse signal that two-way is respectively used to the LED of control two groups of different-colours.
10. method according to claim 9, it is characterized in that, described LED drive circuit receives and processes described drive pulse signal, send to the LED of different-colour to be specially to regulate the brightness of described LED the drive pulse signal after process: LED drive circuit receives and processes the drive pulse signal that two-way is respectively used to the LED of control two groups of different-colours, send to the LED of two groups of different-colours to regulate the brightness ratio of the described LED of two groups of different-colours respectively the drive pulse signal after process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510753669.2A CN105323928A (en) | 2015-11-09 | 2015-11-09 | Color temperature adjusting system and method for LED |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510753669.2A CN105323928A (en) | 2015-11-09 | 2015-11-09 | Color temperature adjusting system and method for LED |
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| CN107132644A (en) * | 2016-02-29 | 2017-09-05 | 西安诺瓦电子科技有限公司 | Image detection device and optics cavity |
| CN107132645A (en) * | 2016-02-29 | 2017-09-05 | 西安诺瓦电子科技有限公司 | Image detection device and optics cavity |
| CN108738200A (en) * | 2018-06-08 | 2018-11-02 | 珠海金晟照明科技有限公司 | Color temperature adjustment device, the system and method for lamp group |
| CN113891528A (en) * | 2021-09-24 | 2022-01-04 | 上海智汇电器有限公司 | Color difference lamp and color difference lamp adjusting method |
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Application publication date: 20160210 |