CN101340761A - Lighting system, lamp tool controller and lamp tool control method - Google Patents
Lighting system, lamp tool controller and lamp tool control method Download PDFInfo
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- CN101340761A CN101340761A CNA2008101422819A CN200810142281A CN101340761A CN 101340761 A CN101340761 A CN 101340761A CN A2008101422819 A CNA2008101422819 A CN A2008101422819A CN 200810142281 A CN200810142281 A CN 200810142281A CN 101340761 A CN101340761 A CN 101340761A
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Abstract
The invention is applicable to the field of light beam illumination and provides a light system, a lamp controller and a lamp control method. The light beam system comprises a controller and a lamp chain which is connected with the controller by data lines; the lamp in the lamp chain comprises a display lamp and a driving circuit which controls the display lamp; the driving circuit is connected with a power supply by positive power signal wires and negative power signal wires; the controller comprises a signal generation unit which is used for generating data signals and transmitting the data signals to the lamp chain by the data line so as to control the lamp in the lamp chain; the data signal comprises pixel data signals and synchronous display signal. In the light beam system provided by the invention, the light beam system adopts a three-wire control type of the positive power signal wires, the negative power signal wires and the single data wires to control the lamp; the whole system achieves the object of reducing the cost of the system by reducing the control wires, is suitable for the development trend of minimization of products and can be widely applied to LED curtain products.
Description
Technical field
The invention belongs to the lighting field, relate in particular to a kind of lighting system, lamp controller and light fixture control method.
Background technology
In light fixture light modulation and control mode, the control of light fixture has the DMX512 of employing standard, by microcontroller (Micro Controller Unit, MCU) or special-purpose DMX512 integrated circuit (Integrate Circuit, IC) four line traffic control systems of control light fixture, adopt five line traffic control systems of DM413 drive circuit control light fixture, adopt shift register such as 74HC595, ZQL9712 etc., or increase by six line traffic control systems of schemes such as constant current function such as MBI5026 control light fixtures on this basis, all there is the too many problem of control line in above-mentioned each scheme, is not suitable for the development trend of product miniaturization, and it is too high to control cost simultaneously.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of lighting system, and the control line that is intended to solve light fixture in the present lighting system is too many, the too high problem of controlling cost.
The embodiment of the invention is to realize like this, a kind of lighting system, comprise controller and the light fixture link that is connected with described controller by data wire, light fixture in the described light fixture link comprises the drive circuit of display lamp and control display lamp, described drive circuit is connected with power supply by positive and negative power supply signal line, and described controller comprises:
Signal generating unit is used to produce data-signal and transfers to described light fixture link by data wire, and so that the light fixture in the described light fixture link is controlled, described data-signal includes pixel data signal and synchronous shows signal.
Another purpose of the embodiment of the invention is to provide a kind of lamp controller, and described lamp controller comprises:
Signal generating unit is used to produce data-signal light fixture is controlled, and described data-signal includes pixel data signal and synchronous shows signal.
Another purpose of the embodiment of the invention is to provide a kind of light fixture control method, said method comprising the steps of:
Controller produces data-signal, and described data-signal transfers to the light fixture link by data wire, and described data-signal includes pixel data signal and synchronous shows signal;
Each light fixture in the light fixture link according to and controller between agreement, the pixel data that selective reception is corresponding with it, and when receiving described synchronous shows signal, simultaneously the state of display lamp being controlled.
In the lighting system that the embodiment of the invention provides, lighting system adopts the three-way control mode of positive and negative power supply signal line, single lamp data line to control light fixture, control the drive circuit of light fixture by the data-signal that includes pixel data signal and synchronous shows signal by controller, further controlling corresponding light fixture by each drive circuit shows simultaneously, whole system has realized reducing the purpose of system cost owing to reducing control circuit, be fit to the development trend of product miniaturization, can be widely used in LED curtain product.
Description of drawings
Fig. 1 is the structure principle chart of the lighting system that provides of the embodiment of the invention;
Fig. 2 is the sequential chart of the control signal that signal generating unit produces in the controller that provides of first embodiment of the invention;
Fig. 3 is the sequential chart of the control signal that signal generating unit produces in the controller that provides of second embodiment of the invention;
Fig. 4 is the sequential chart of the control signal that signal generating unit produces in the controller that provides of third embodiment of the invention;
Fig. 5 is the sequential chart of the control signal that signal generating unit produces in the controller that provides of fourth embodiment of the invention;
Fig. 6 is the realization flow of the light fixture control method that provides of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the embodiment of the invention, lighting system adopts the three-way control mode control light fixture of positive and negative power supply signal line, light fixture control data line, by signal generating unit with asynchronous system will include pixel data signal and synchronously the data of shows signal to the drive circuit of each light fixture, control corresponding light fixture by each drive circuit and show simultaneously.
Fig. 1 shows the structural principle of the lighting system that the embodiment of the invention provides, and for convenience of description, only shows the part relevant with the embodiment of the invention.
Please refer to Fig. 1, lighting system comprises controller 11 and a plurality of light fixture link that is connected with controller 11 by data wire, this light fixture link comprises a plurality of light fixtures, as L1, L2, L3, Ln-1, Ln, wherein light fixture further comprises the drive circuit that display lamp and control display lamp are lighted or extinguished, drive circuit is connected with power supply by positive power signal end VDD, negative power signal end GND, display lamp can for light-emitting diode (Light Emitting Diode, LED) etc.Comprise a signal generating unit in the controller 11, the data-signal that signal generating unit will include driving parameters information and synchronous display message transfers to each light fixture with asynchronous system, as shown in Figure 2, data-signal is made up of pixel data signal and synchronous shows signal, wherein signal T1, T2, T3, Tn-1, Tn are respectively light fixture L1, L2 among Fig. 1, L3, Ln-1, the pairing pixel data signal of Ln, and signal Tt is synchronous shows signal.
The drive circuit of each light fixture is according to the agreement between itself and the controller 11, behind the selective reception pixel data corresponding with it, send the drive circuit of a synchronous shows signal Tt to each light fixture of system at last by signal generating unit, drive circuit is controlled corresponding display lamp (as LED) simultaneously and is lighted.One of them complete data frame signal cycle comprises pixel data cycle and synchronous shows signal cycle.
Fig. 2 shows the sequential of the control signal that signal generating unit produces in the controller that first embodiment of the invention provides, wherein pixel data signal is controlled lighting of display lamp with the height state of level or is extinguished, when being high level as detect its corresponding pixel data signal when drive circuit, the control display lamp is lighted (signal T1, T2, Tn-1), when drive circuit detects its corresponding pixel data signal and is low level, the control display lamp extinguishes (signal T3, Tn), and shows signal Tt is lasting high level or lasting low level synchronously, and the duration is greater than a pixel period, synchronously high level state value or low level state value equate in the value of shows signal Tt and the pixel data signal, include two class level in the data-signal altogether.
In the second embodiment of the invention, pixel data signal adopts the control mode of two kinds of duty ratios, as shown in Figure 3, when light fixture detected its corresponding pixel data signal and has first kind of duty ratio, the control display lamp was lighted, as signal T1, T2, Tn-1, when drive circuit detected its corresponding pixel data signal and has second kind of duty ratio, the control display lamp extinguished, as signal T3, Tn, and shows signal Tt repeats no more described in first embodiment herein synchronously.
Fig. 4 shows the sequential of the control signal that signal generating unit produces in the controller that third embodiment of the invention provides, for the drive circuit that makes light fixture is discerned synchronous shows signal Tt better, signal generating unit adopts the control mode of three class level in the present embodiment, pixel data bit level: 0～0.8V represents low (L) level, 2.0～3.3V represents height (H) level, shows signal Tt:0～0.8V represents low (L) level synchronously, 4～5V represents height (H) level, i.e. the three class level of 0～0.8V, 2.0～3.3V, 4～5V.
In like manner, the control mode of above-mentioned three class level also can combine with the pixel data signal with two kinds of duty ratios, is the fourth embodiment of the present invention, and as shown in Figure 5, concrete principle is with reference to second, third embodiment.
Data are transmitted with serial mode in the whole lighting system, suppose that signal input part DI, signal output part DO in all lamp driving circuits of the initial condition that powers on remain low level, all display lamps are in and extinguish state, in data transmission procedure, each display lamp keeps current state constant, when drive circuit detects synchronous shows signal Tt, light or extinguish according to the duty ratio control display lamp of the pixel data that receives.When only needing to change the state of first three display lamp, then 3 pixel data signal postposition of controller 11 outputs are the pairing level value of synchronous shows signal Tt, and the like; When only needing to change the state of some display lamps wherein, as the 4th display lamp, then to need the current pixel data of preceding 3 display lamps of output and the control data postposition of the 4th display lamp be the pairing level value of synchronous shows signal Tt to master controller 11.
The embodiment of the invention also provides a kind of lamp controller, this lamp controller comprises a signal generating unit, this signal generating unit produces the data-signal that includes pixel data signal and synchronous shows signal that light fixture is controlled, wherein data-signal repeats no more specifically as mentioned above herein.
The embodiment of the invention also provides a kind of light fixture control method, and Fig. 6 shows the realization flow of this method, and details are as follows:
In step S601, controller produces data-signal, and this data-signal transfers to the light fixture link by data wire, and this data-signal includes pixel data signal and synchronous shows signal.
In the embodiment of the invention, pixel data signal can be controlled lighting of display lamp or extinguishes with the height state of level, also can adopt the control mode of two kinds of duty ratios.Synchronously shows signal can be to continue high level or lasting low level, and the duration greater than a pixel period, high level state value or low level state value equate in the value of shows signal and the pixel data signal synchronously, include two class level in the data-signal altogether; For to make the drive circuit of light fixture discern synchronous shows signal better, also can adopt the control mode of three class level simultaneously, specifically as indicated above, specifically repeat no more.
In step S602, each light fixture in the light fixture link according to and controller between agreement, the pixel data that selective reception is corresponding with it, and when receiving described synchronous shows signal, simultaneously the state of display lamp being controlled.
In sum, in the lighting system that the embodiment of the invention provides, lighting system adopts the three-way control mode control light fixture of positive and negative power supply signal line, single light fixture control data line, control the drive circuit of light fixture by the data-signal that includes pixel data signal and synchronous shows signal by signal generating unit, further controlling corresponding light fixture by each drive circuit shows simultaneously, whole system has realized reducing the purpose of system cost owing to reducing control circuit, be fit to the development trend of product miniaturization, can be widely used in LED curtain product; Controller adopts the control mode of three class level simultaneously, also makes the drive circuit of light fixture can discern synchronous shows signal better.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1, a kind of lighting system, comprise controller and the light fixture link that is connected with described controller by data wire, light fixture in the described light fixture link comprises the drive circuit of display lamp and control display lamp, described drive circuit is connected with power supply by positive and negative power supply signal line, it is characterized in that described controller comprises:
Signal generating unit is used to produce data-signal and transfers to described light fixture link by data wire, and so that the light fixture in the described light fixture link is controlled, described data-signal includes pixel data signal and synchronous shows signal.
2, lighting system as claimed in claim 1 is characterized in that, described pixel data signal has two kinds of duty ratios.
3, lighting system as claimed in claim 1 or 2 is characterized in that, described synchronous shows signal continues high level or continues the low level time greater than a pixel period.
4, lighting system as claimed in claim 1 or 2 is characterized in that, described signal generating unit adopts the control mode of three class level that the drive circuit of described light fixture is controlled.
5, a kind of lamp controller is characterized in that, described lamp controller comprises:
Signal generating unit is used to produce data-signal light fixture is controlled, and described data-signal includes pixel data signal and synchronous shows signal.
6, lamp controller as claimed in claim 5 is characterized in that, described pixel data signal has two kinds of duty ratios.
As claim 5 or 6 described lamp controllers, it is characterized in that 7, institute's shows signal synchronously continues high level or continues the low level time greater than a pixel period.
As claim 5 or 6 described lamp controllers, it is characterized in that 8, described signal generating unit adopts the control mode of three class level that the drive circuit of described light fixture is controlled.
9, a kind of light fixture control method is characterized in that, said method comprising the steps of:
Controller produces data-signal, and described data-signal transfers to the light fixture link by data wire, and described data-signal includes pixel data signal and synchronous shows signal;
Each light fixture in the light fixture link according to and controller between agreement, the pixel data that selective reception is corresponding with it, and when receiving described synchronous shows signal, simultaneously the state of display lamp being controlled.
10, light fixture control method as claimed in claim 9 is characterized in that, described pixel data signal has two kinds of duty ratios.
As claim 9 or 10 described light fixture control methods, it is characterized in that 11, described synchronous shows signal continues high level or continues the low level time greater than a pixel period.
As claim 9 or 10 described light fixture control methods, it is characterized in that 12, described signal generating unit adopts the control mode of three class level that the drive circuit of described light fixture is controlled.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008101422819A CN101340761A (en) | 2008-08-07 | 2008-08-07 | Lighting system, lamp tool controller and lamp tool control method |
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| CNA2008101422819A CN101340761A (en) | 2008-08-07 | 2008-08-07 | Lighting system, lamp tool controller and lamp tool control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010015202A1 (en) * | 2008-08-07 | 2010-02-11 | 深圳市宏啟光电有限公司 | Lighting system and lamp controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010015202A1 (en) * | 2008-08-07 | 2010-02-11 | 深圳市宏啟光电有限公司 | Lighting system and lamp controller |
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Application publication date: 20090107 |