CN101111109A - Method for controlling color and brightness of LED and control system thereof - Google Patents
Method for controlling color and brightness of LED and control system thereof Download PDFInfo
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- CN101111109A CN101111109A CNA2006101035639A CN200610103563A CN101111109A CN 101111109 A CN101111109 A CN 101111109A CN A2006101035639 A CNA2006101035639 A CN A2006101035639A CN 200610103563 A CN200610103563 A CN 200610103563A CN 101111109 A CN101111109 A CN 101111109A
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The present invention provides a color and the brightness control method of a light emitting diode, and the network control system. The method realizes the controlling of the brightness and the color of the light emitting diode (LED) through the serial code communication method, thus achieving the purpose of continuous control to the color and the brightness of LED lamps in the simple connect-line way; the system comprises a controller, a power supply unit and at least one LED display unit, and utilizes one signal line to control the full-color transformation of the LED display unit by using the special code processing, thus making the system more simple, and convenient for implementation.
Description
Technical field
The present invention relates to the control method and the control system thereof of led color and brightness.
Background technology
Interconnective light-emitting device, such as the light-emitting diode network, the more and more general outdoor decoration that is used for.Luminescence display unit adopts simple collective switching mode in most systems, perhaps has extremely limited flexibility owing to making the minority device open the extension difference with other groups.Along with the development that people need is more and more higher to the requirement of luminous network intelligence words.On March 22nd, 2006 disclosed a kind of luminous network control system and control method in disclosed No. 200410074465.8 patent in Patent Office of the People's Republic of China, but control realizes that " the full color conversion " of light-emitting device needs many data lines in this technology.
Summary of the invention
In view of this, the invention provides a kind of control method that makes light-emitting diode realize " full color conversion ", be that a kind of method by the serial code communication realizes brightness and the color control to light-emitting diode, thereby make it can realize the transmission and the Address Recognition of light data by a data lines.
The invention provides the control method of a kind of led display unit color and brightness, can realize by the Manchester's code mode.
In the Manchester's code mode, may further comprise the steps:
(1), in Manchester's code, there is a saltus step centre of each, synchronizing clock signals had both been made in the saltus step in the middle of the position, again date number;
(2), saltus step from high to low is made as " 1 ", saltus step from low to high is made as " 0 ";
(3), manchester encoder realize be by serial data in the shift register output of the falling edge of synchronised clock from upper level, with synchronised clock XOR mutually, the result obtains the Manchester code that conforms to top coding rule when high and low level;
(4), manchester decoder realizes it being synchronised clock to be calibrated during by serial data generation saltus step, the coding first half of bit or latter half sampled the serial Manchester code is transformed into serial data, and the serial level signal is combined into parallel signal output, so that further handle.
The jumping of Manchester's code mode just also saltus step from high to low be made as " 0 ", saltus step from low to high is made as " 1 ".
Another program of the present invention provides a kind of light-emitting diode network control system, comprises that a controller produces control command; At least one led display unit, a described led display unit contains control chip, emitting red light device, blue luminescent device, green light emitting device; Power supply unit provides power supply.Described controller is connected with described led display unit by a holding wire, and described holding wire comprises the control signal to emitting red light device, blue luminescent device, green light emitting device simultaneously; Described led display unit is parallel to power supply unit by a power line.Controller is finished the control of all led display unit colors of system and brightness by a holding wire.Described light-emitting diode network control system power line can adopt external mode, also can realize realizing power supply unit and being connected by two wires of described led display unit by the interior mode that connects.Led display unit contains a power adjustment device, a protection device, and described protection device is lightning protection or antistatic components and parts.
The invention has the beneficial effects as follows, just can realize control by a holding wire to " the full-color conversion " of lamp color, make like this system's intraconnections more succinctly, flexible more, in use can according to the ornament exterior contour with this LED decorative lamp more random surround the needed different shape of ornament exterior contour.
Description of drawings
Fig. 1 is a hardware block diagram among diode network control system one embodiment of the present invention.
Fig. 2 is diode network control system one a led display unit structured flowchart shown in Figure 1.
Fig. 3 is Manchester (manchest) coded system figure
Among the figure: 1, controller 2, power supply unit 30, led display unit 31, led display unit 4, control chip 5, protection device 6, adjustment device 7, power input 8, power input 9, signal input part 10, power line output 11, power line output 12, signal output part 13, emitting red light device 14, blue luminescent device 15, green light emitting device
Embodiment
Fig. 1 is hardware block diagram among light-emitting diode network control system one embodiment of the present invention.Described diode network control system comprises controller 1, power supply unit 2, led display unit 30, led display unit 31.Power supply unit by two power lines and controller 1, led display unit 30, led display unit 31 is connected to it that power supply is provided.Described power line adopts external mode to realize.The signal deferent segment of controller 1 is connected with the signal input part of led display unit 30, the signal output part of led display unit 30 is connected with the input of led display unit 31, and the like, the signal of controller 1 output can be sent at least one led display unit successively.
Fig. 2, a led display unit structured flowchart.This led display unit comprises: power input 7 and 8; Power output end 10 and 11; Control chip 4; Signal input part 9 links to each other with control chip 4 inputs by protection device 5; Signal output part 12 links to each other with control chip 4 outputs; Emitting red light device 13 links to each other with control chip 4; Blue luminescent device 14 links to each other with control chip 4; Green light emitting device 15 links to each other with control chip 4; Power adjustment device 6, connect and power supply and control chip 4 between, play the effect of voltage stabilizing; One protection device 5 is connected between signal input part 6 and the control chip 4, and this protection device 5 is lightning protection or antistatic device.
In conjunction with Fig. 1 and Fig. 2, be that example describes described diode network control system with led display unit 30.Controller 1 is encoded to control signal according to user's instruction, control signal after controller 1 will be encoded is exported by holding wire, control chip 4 in the led display unit 31 is by signal input part 9 picked up signal, 4 pairs of received control signals of control chip are handled, the control signal that receives this unit is also temporary, afterwards follow-up control signal is delivered to led display unit 31 by signal output part 12.Temporary control signal is sent to the control that emitting red light device 13, blue luminescent device 14, green light emitting device 15 are realized led display unit brightness, color etc. in control chip 4.Control signal enters led display unit 31 and does same processing, and in like manner, this system can connect led display unit many, and the control signal of this unit is preserved in each unit, and follow-up control signal is delivered to next led display unit by signal output part.
The realization key of described diode network control system is the coded system to the light data; In this coded system, comprised data message and clock information, can make led display unit from data, recover synchronised clock, and accurately receive data according to clock.
Manchester (manchest) coded system as shown in Figure 3 in.Controller 1 is encoded to control signal by the Manchester's code rule, and control chip 4 is decoded to control signal by the manchester decoder rule.
The control data of each led display unit is the N position, each series connection of root cable M led display unit, then the N*M position, a frame video data position on this data wire.
Manchester's code is that clock and data are included in the data flow, in transmission code information, also clock sync signal is transferred to the other side together, and a saltus step is arranged in every coding, and synchronizing clock signals had both been made in the saltus step in the middle of the position, again date number; " 1 " is represented in saltus step from high to low, and " 0 " is represented in saltus step from low to high.In the implementation method of manchester encoder, in the shift register output from upper level of the falling edge of synchronised clock, with synchronised clock XOR mutually, the result obtains the Manchester code that conforms to Fig. 3 coding rule when high and low level by serial data.In the implementation method of manchester decoder, during serial data generation saltus step synchronised clock is calibrated, the coding first half of bit or latter half sampled the serial Manchester code is transformed into serial data, and the serial level signal is combined into parallel signal output, so that further handle.
In Fig. 3 with in the Manchester's code transmission course: the LED lamp controller is that unit sequence sends with video data with a frame.It is beginning flag that the beginning of each frame sends a trailing edge, then N*M position LED video data is carried out uninterruptedly sending successively after the Manchester's code, send the N position of first led display unit 30 earlier, send the N position of second led display unit 31 again, up to the data of having sent M led display unit, frame data send and finish back minimum three high level of maintenance as frame end mark.Led display unit enters reception decoding state after detecting the trailing edge beginning flag, begins to receive data and the data counts to receiving, and utilizes trailing edge or rising edge calibration synchronised clock simultaneously.When being, N sends the beginning flag of a trailing edge when receiving as next led display unit, after receiving the N bit data of this unit, video data is temporary to led display unit control chip 4, will send to next unit after the follow-up video data shaping simultaneously.After receiving continuous late high level end mark, the count pick up device that resets prepares to receive next auspicious data.
Control led state with video data at last: led display unit control chip 4 is provided with a cycle counter, comprised by the temporary N position video data of receiving unit red, green, colors such as indigo plant a kind of, or several color information.The numerical value of cycle counter is compared with color data, and when the numerical value of cycle counter during less than color data, corresponding LED is lighted; When the numerical value of cycle counter during greater than color data, corresponding LED is extinguished.
Claims (8)
1. the control method of led display unit color and brightness can realize by the Manchester's code mode.The Manchester's code mode may further comprise the steps:
(1), in Manchester's code, there is a saltus step centre of each, synchronizing clock signals had both been made in the saltus step in the middle of the position, again date number;
(2), saltus step from high to low is made as " 1 ", saltus step from low to high is made as " 0 ";
(3), manchester encoder realize be by serial data in the shift register output of the falling edge of synchronised clock from upper level, with synchronised clock XOR mutually, the result obtains the Manchester code that conforms to top coding rule when high and low level;
(4), manchester decoder realizes it being synchronised clock to be calibrated during by serial data generation saltus step, the coding first half of bit or latter half sampled the serial Manchester code is transformed into serial data, and the serial level signal is combined into parallel signal output, so that further handle;
2. Manchester's code mode according to claim 1 is characterized in that: saltus step from high to low also can be made as " 0 ", and saltus step from low to high is made as " 1 ".
3. a light-emitting diode network control system comprises that a controller (1) produces control command; At least one led display unit, a described led display unit (30,31) contains control chip (4), emitting red light device (13), blue luminescent device (14), green light emitting device (15); Power supply unit (2) provides power supply; It is characterized in that:
Controller (1) is connected with described led display unit (30,31) by a holding wire, and described holding wire comprises the control signal to emitting red light device (13), blue luminescent device (14), green light emitting device (15) simultaneously;
Described led display unit is parallel to power supply unit (2) by a power line.
4. as light-emitting diode network control system as described in the claim 3, it is characterized in that controller (1) is finished the control of all led display units of system (30,31) color and brightness by a holding wire.
5. as light-emitting diode network control system as described in the claim 3, it is characterized in that described power line adopts external mode also can realize by the interior mode that connects.
6. as light-emitting diode network control system as described in the claim 3, it is characterized in that led display unit (30,31) contains a power adjustment device (6).
7. as light-emitting diode network control system as described in the claim 3, it is characterized in that led display unit (30,31) contains protection device (5).
8. as light-emitting diode network control system as described in the claim 7, it is characterized in that described protection device (5) is lightning protection or antistatic components and parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006101035639A CN101111109A (en) | 2006-07-21 | 2006-07-21 | Method for controlling color and brightness of LED and control system thereof |
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| CNA2006101035639A CN101111109A (en) | 2006-07-21 | 2006-07-21 | Method for controlling color and brightness of LED and control system thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572977A (en) * | 2008-04-30 | 2009-11-04 | 苏锦标 | Illuminating system |
| CN101494936B (en) * | 2008-12-19 | 2012-07-25 | 上海广茂达光艺科技股份有限公司 | LED light control bus and control method |
| CN102970105A (en) * | 2012-11-09 | 2013-03-13 | 深圳市晟碟半导体有限公司 | Transmission method and system of light-emitting diode (LED) chip cascading signals |
| CN103377620A (en) * | 2012-04-13 | 2013-10-30 | 新谱光科技股份有限公司 | Method for adjusting light emitting diodes of display device |
| CN108833013A (en) * | 2018-06-11 | 2018-11-16 | 北京科技大学 | A kind of visible optical transceiving method and system |
| CN110211394A (en) * | 2019-07-10 | 2019-09-06 | 江苏航天大为科技股份有限公司 | Display screen deferred mount based on Schmidt trigger |
-
2006
- 2006-07-21 CN CNA2006101035639A patent/CN101111109A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572977A (en) * | 2008-04-30 | 2009-11-04 | 苏锦标 | Illuminating system |
| CN101494936B (en) * | 2008-12-19 | 2012-07-25 | 上海广茂达光艺科技股份有限公司 | LED light control bus and control method |
| CN103377620A (en) * | 2012-04-13 | 2013-10-30 | 新谱光科技股份有限公司 | Method for adjusting light emitting diodes of display device |
| CN103377620B (en) * | 2012-04-13 | 2015-04-22 | 新谱光科技股份有限公司 | Method for adjusting light emitting diodes of display device |
| CN102970105A (en) * | 2012-11-09 | 2013-03-13 | 深圳市晟碟半导体有限公司 | Transmission method and system of light-emitting diode (LED) chip cascading signals |
| CN102970105B (en) * | 2012-11-09 | 2015-12-02 | 深圳市晟碟半导体有限公司 | A kind of transmission method of LED chip cascade signal and transmission system |
| CN108833013A (en) * | 2018-06-11 | 2018-11-16 | 北京科技大学 | A kind of visible optical transceiving method and system |
| CN110211394A (en) * | 2019-07-10 | 2019-09-06 | 江苏航天大为科技股份有限公司 | Display screen deferred mount based on Schmidt trigger |
| CN110211394B (en) * | 2019-07-10 | 2024-04-12 | 江苏航天大为科技股份有限公司 | Display screen delay device based on Schmitt trigger |
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