CN101466189B - Distributor, distributing system and method - Google Patents
Distributor, distributing system and method Download PDFInfo
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- CN101466189B CN101466189B CN200910076648.6A CN200910076648A CN101466189B CN 101466189 B CN101466189 B CN 101466189B CN 200910076648 A CN200910076648 A CN 200910076648A CN 101466189 B CN101466189 B CN 101466189B
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Abstract
The invention discloses a distribution device, a distribution system and a distribution method, which are mainly applied to the LBD lamp string signal distribution. The distribution device comprises a control unit, a distribution unit and at least a switch power supply; the control unit is provided with a signal interface which is used for receiving the external video signals, and the signals are transmitted to the distribution unit and each switch power supply by the control unit; the distribution unit is connected with at least one group of LBD unit and is used for executing the data grouping according to the video signals, and each group data can be transmitted to the external corresponding to each group LBD unit; each switch power supply is connected with external at least one group of LBD unit and is used for adjusting the output condition according to the video signals and supplying power for each group of the LBD unit. According to the grayscale data of the LBD unit, the switch power supply synchronously adjusts the output current, the voltage and the power, so as to ensure the brightness and the depth, and ensure the display effect.
Description
Technical field
The present invention relates to data allocations, in particular, a kind of distributor, a kind of distribution system that adopts this distributor and a kind of distribution method.
Background technology
As shown in Figure 1, in prior art, LED unit for each LED lamp string, or for comprising each row LED unit of the various display screens that the opposite sex is put down or being respectively listed as LED unit, its control method normally adopts data distributor, according to the LED unit of each lamp string, each row or each row, data are divided into data queue, adopt certain form, send to the LED unit of each lamp string, each row or each row.
For example, for a display screen, can adopt one or more data distributors, by the one-frame video data of input, be divided into the data queue of several rows, correspondence sends to each row LED unit respectively; Meanwhile, for each row LED unit, also at least adopt a Switching Power Supply to power; Thereby show this frame video data of screen display at this.
Generally, a Switching Power Supply, may connect up to a hundred or hundreds of LED unit.Power supply output needs to change according to the demonstration of LED unit; For each LED unit, this Switching Power Supply power output is stable.Like this, in the time of need to regulating the brightness of a certain LED unit; For example, the brightness of this LED unit is heightened, now, for this LED unit, need to be increased output current; Output voltage can correspondingly reduce in a short time, needs certain voltage recovery time.
Yet; when the shown part in a certain LED unit of display frame; when front and back contrast is stronger; because the brightness of this LED unit changes greatly; and the voltage recovery time can be caused hysteresis phenomenon significantly to this; thereby it is undesired or unstable to cause gray scale to show, brightness and depth declines, and has affected display effect.
If Switching Power Supply adopts the stand-by power supply of relatively high power to avoid the problems referred to above, need more high-power power reserves, reduced the efficiency of power supply, increased application cost; And the voltage recovery time still exists, must cause display effect still can be subject to certain impact.
Therefore, there is defect in prior art, needs to improve.
Summary of the invention
Technical problem to be solved by this invention is because power supply output needs to change according to the demonstration of LED unit, causes gray scale to show undesired or unstable, and brightness and depth declines, and display effect is poor.
Technical scheme of the present invention is as follows: a kind of distribution method, wherein, comprises the following steps: A, send vision signal to allocation units, carry out packet, each group data are transferred to respectively to the corresponding LED unit of respectively organizing; B, transmission vision signal, to each Switching Power Supply corresponding to described allocation units, are adjusted output condition, for each group LED unit powers; Wherein, described output condition at least comprise output current, output voltage, power output one of them.
Described distribution method, wherein, in step B, described transmission vision signal, to each Switching Power Supply, is to send vision signal to each Switching Power Supply by allocation units.
Described distribution method, in step B, by allocation units according to each Switching Power Supply corresponding respectively organize LED unit, using each group data as the required vision signal of each Switching Power Supply, be transferred to respectively each corresponding Switching Power Supply; Each Switching Power Supply is respectively organized data according to its reception, adjusts output condition, for each group LED unit powers.
Described distribution method, wherein, in steps A, described allocation units adopt serial or parallel connection mode, the data of a certain group are outputed in each LED unit of this group.
Described distribution method, wherein, in steps A, described allocation units are respectively by each Switching Power Supply, and each group data are transferred to respectively to the corresponding LED unit of respectively organizing.
Described distribution method, wherein, also comprises step C: adopt one to pre-set cascade mode, described vision signal is sent to other allocation units and each corresponding Switching Power Supply thereof.
, wherein, comprising interconnective control unit and distributor, described distributor comprises allocation units and at least one Switching Power Supply; Described control unit arranges a signaling interface, for receiving outside vision signal, and sends to described distributor by described control unit; Described allocation units are also connected with at least one group of LED unit of outside, for according to described vision signal, carry out packet, and each group data are transferred to respectively to the outside corresponding LED unit of respectively organizing; Arbitrary Switching Power Supply is also connected with at least one group of LED unit of outside, for according to described vision signal, adjusts output condition, for each group LED unit powers; Wherein, described output condition at least comprise output current, output voltage, power output one of them.
Described distributor, wherein, described control unit also arranges a configuration interface and at least one cascade module and corresponding asynchronous interface thereof, gang mould pieces at different levels are respectively used to arrange a kind of cascade mode, and according to a certain cascade mode, by its corresponding asynchronous interface, be connected with an asynchronous interface of other distributor.
Described distributor, wherein, described control unit sends to each Switching Power Supply by described allocation units by described vision signal.
Described distributor, wherein, described allocation units also for according to each Switching Power Supply corresponding respectively organize LED unit, each group data are transferred to respectively to each corresponding Switching Power Supply; Each Switching Power Supply also for according to its reception respectively organize data, adjust output condition, for each group LED unit powers.
Described distributor, wherein, described allocation units output to the holding wire of outside a certain group of LED unit, with each LED units in series or in parallel of this group.
Described distributor, wherein, described allocation units are as described distributor setting, and it is inner that each Switching Power Supply is arranged on described allocation units.
Described distributor, wherein, described allocation units are respectively by each Switching Power Supply, and respectively the organize LED unit corresponding with each Switching Power Supply is connected.
, wherein, comprise at least one above-described distributor, and some groups of LED unit; Described allocation units are also connected with at least one group of LED unit; Arbitrary Switching Power Supply is also connected with at least one group of LED unit.
Adopt such scheme, the present invention, by the gradation data that need to show according to LED unit, prenotices Switching Power Supply, synchronously adjusts output current, or synchronously adjusts output voltage, or synchronously adjusts power output.Thereby normally and stably carry out gray scale demonstration, ensured brightness and depth, guaranteed display effect; And avoided Switching Power Supply need adopt the stand-by power supply of relatively high power, improved the service efficiency of Switching Power Supply.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art;
Fig. 2 is the schematic diagram of the embodiment 1 of distribution system of the present invention and distributor thereof;
Fig. 3 is the schematic diagram of the embodiment 2 of distribution system of the present invention and distributor thereof;
Fig. 4 is the schematic diagram of the embodiment 3 of distribution system of the present invention and distributor thereof;
Fig. 5 is the schematic diagram of the embodiment 4 of distribution system of the present invention and distributor thereof;
Fig. 6 is the schematic diagram of the embodiment 5 of distribution system of the present invention and distributor thereof;
Fig. 7 is the schematic diagram of the embodiment 6 of distribution system of the present invention and distributor thereof;
Fig. 8 is the schematic diagram of the embodiment 7 of distribution system of the present invention and distributor thereof;
Fig. 9 is the schematic diagram of the embodiment 8 of distribution system of the present invention and distributor thereof;
Figure 10 is the schematic diagram of the embodiment 9 of distribution system of the present invention and distributor thereof;
Figure 11 is the schematic diagram of the embodiment 10 of distribution system of the present invention and distributor thereof;
Figure 12 is the application schematic diagram of distribution system of the present invention and distributor thereof.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 2, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And in Fig. 2, the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
Wherein, in Fig. 2, distributor only comprises control unit and distributor; Do not comprise and respectively organize LED unit, and organize being connected of LED unit with each.Described control unit and described distributor can be made into respectively a box body in actual applications, these two box bodys can interconnect by netting twine, optical fiber, cable or other power supplys, holding wire, and each interface is set in described distributor, can be connected with each group LED unit by netting twine, optical fiber, cable or other power supplys, holding wire; Or described distributor can be made into a box body in actual applications, can be connected with each group LED unit by netting twine, optical fiber, cable or other power supplys, holding wire.For example, at described distributor, hub HUB interface and power interface are set, by grafting netting twine and power line, for example, netting twine and the power line of grafting RJ45 interface, be connected with each group LED unit, to realize the transmission of power supply and signal.
Wherein, described distributor, by packet, transmission, sends to and respectively organizes LED unit by display order; For each LED unit of a certain group, can be decoded as pulse square wave by a driver element by the data that receive, produce displacement clock, be sent to a driving chip; By this, drive chip according to pulse square wave, the latch signal in displacement clock and data, controls corresponding LED lamp.
Described control unit can arrange at least one signaling interface, for receiving outside vision signal; By described control unit, be connected with described distributor, described vision signal is sent to described distributor.
Or, as shown in Figure 2, described control unit can also arrange a configuration interface and at least one cascade module and corresponding asynchronous interface thereof, gang mould pieces at different levels are respectively used to arrange a kind of cascade mode, and according to a certain cascade mode, by its corresponding asynchronous interface, be connected with an asynchronous interface of other distributor.For example, described control unit can arrange two cascade modules and corresponding asynchronous interface thereof, comprises a levels gang mould piece and corresponding levels connector thereof, and a vertical level gang mould piece and corresponding vertical level connector thereof.
As shown in Figure 2, described distributor comprises allocation units and at least one Switching Power Supply; Described allocation units are also connected with at least one group of LED unit, for carrying out packet, each group data are transferred to respectively to the corresponding LED unit of respectively organizing.
It should be noted that, a distributor, generally include allocation units, also can comprise a plurality of allocation units, a plurality of allocation units can separately arrange, and also can be arranged in parallel, the present invention does not make any additional limits to this, as long as can realize, data allocations is organized to LED unit to each, comprise the LED unit of each lamp string, each row or each row, thereby show.
Arbitrary Switching Power Supply is also connected with at least one group of LED unit, for according to described vision signal, adjusts output condition, for each group LED unit powers; Wherein, described output condition at least comprise output current, output voltage, power output one of them.For example, described output condition is output current; Or described output condition is output voltage and output current etc.Like this, the gradation data that need to show according to LED unit, prenotices Switching Power Supply, synchronous adjustment output current, or synchronously adjust output voltage, or synchronously adjust power output, or synchronously adjust output current and power output, or synchronously adjust output current and output voltage etc.; Thereby normally and stably carry out gray scale demonstration, ensured brightness and depth, guaranteed display effect; And avoided Switching Power Supply need adopt the stand-by power supply of relatively high power, improved the service efficiency of Switching Power Supply.
A distributor, generally includes a plurality of Switching Power Supplies, and concrete quantity can decide according to the quantity of LED unit.Generally, as shown in Figure 2, a Switching Power Supply with can be connected one group of LED unit.For example, an output maximum current is the Switching Power Supply of 20 amperes, and each desired maximum current in LED unit is 100 milliamperes, and 0.1 ampere, the multipotency of this Switching Power Supply connects 20 amperes/100 milliamperes=200 LED unit; These 200 LED unit can form 1 group of LED unit, also can form the LED unit of two or more groups.
In general, the related Switching Power Supply of each embodiment in the present invention, is switching power supply, utilizes modern power electronics technology, and the time ratio that control switch transistor turns on and off maintains a kind of power supply of regulated output voltage.Switching Power Supply generally by pulse width modulation (PWM), controls IC (integrated circuit) and MOSFET (metal oxide semiconductor field effect tube) forms.
Embodiment 2
As shown in Figure 3, similar to embodiment 1, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And in Fig. 3, the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
The difference of this example and embodiment 1 is, described control unit is connected with described allocation units, be also connected with each Switching Power Supply respectively, described control unit by video signal transmission to described allocation units and each Switching Power Supply.
Embodiment 3
As shown in Figure 4, similar to embodiment 1, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And in Fig. 4, the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor, and described allocation units and each Switching Power Supply more closely arrange, as a distributor.
The difference of this example and embodiment 1 is, described control unit is connected with described allocation units, and described control unit sends to each Switching Power Supply by described allocation units by described vision signal.
Or, described allocation units also for according to each Switching Power Supply corresponding respectively organize LED unit, the data of respectively organizing after packet are transferred to respectively to each corresponding Switching Power Supply; Each Switching Power Supply also for according to its reception respectively organize data, adjust output condition, for each group LED unit powers.
For example, the corresponding a certain group of LED unit of a certain Switching Power Supply, is transferred to this Switching Power Supply by this group LED cell data after packet, is transferred to the data of this group LED unit by this Switching Power Supply basis, the synchronous output condition of adjusting, for each group LED unit powers.Like this, the gradation data that just can need to show according to LED unit, synchronously adjusts output current by Switching Power Supply, or synchronously adjusts output voltage, or synchronously adjusts power output; Thereby normally and stably carry out gray scale demonstration, ensured brightness and depth, guaranteed display effect; And avoided Switching Power Supply need adopt the stand-by power supply of relatively high power, improved the service efficiency of Switching Power Supply.
Embodiment 4
As shown in Figure 5, similar to embodiment 3, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
The difference of this example and embodiment 3 is, described control unit is connected with described allocation units, is not connected with each Switching Power Supply, and described control unit sends to each Switching Power Supply by described allocation units by described vision signal.And described allocation units and each Switching Power Supply, compared with scattering device, are considered as a distributor on the whole.So more be conducive to the integral layout in practical application, spatial relationship is not made to any additional limits.
In this example, for arbitrary group of LED unit, the grouped data of described allocation units is chain type transmission, and in other words, described allocation units output to the holding wire of outside a certain group of LED unit, with each LED units in series of this group.According to sequencing, first send to some LED unit of close together, then be transferred to next LED unit through this LED unit.
Embodiment 5
As shown in Figure 6, similar to embodiment 4, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
The difference of this example and embodiment 4 is, in this example, and for arbitrary group of LED unit, the grouped data of described allocation units is the transmission of tree formula, in other words, described allocation units output to the holding wire of outside a certain group of LED unit, in parallel with each LED unit of this group.Simultaneously by each LED cell data of group, send each LED unit of this group.
Embodiment 6
As shown in Figure 7, similar to embodiment 1, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
This routine feature is, adopts described allocation units as described distributor, each Switching Power Supply is arranged on to described allocation units inner; Like this, described control unit is connected with described allocation units, is also directly connected with each Switching Power Supply, and described control unit sends to respectively described allocation units and wherein each Switching Power Supply by described vision signal.
In Fig. 7, distributor only comprises control unit and allocation units; Do not comprise and respectively organize LED unit, do not comprise with each yet and organize being connected of LED unit.Described distributor can be made into a box body in actual applications, can be connected with each group LED unit by netting twine, optical fiber, cable or other power supplys, holding wire.For example, at described distributor, hub HUB interface and electric source line interface are set, by grafting netting twine and power line, for example, netting twine and the power line of grafting RJ45 interface, be connected with each group LED unit, to realize the transmission of power supply and signal.The interface of box body can be arranged on allocation units.
Or, as shown in Figure 7, described control unit can also arrange a configuration interface and at least one cascade module and corresponding asynchronous interface thereof, gang mould pieces at different levels are respectively used to arrange a kind of cascade mode, and according to a certain cascade mode, by its corresponding asynchronous interface, be connected with an asynchronous interface of other distributor.For example, described control unit can arrange two cascade modules and corresponding asynchronous interface thereof, comprises a levels gang mould piece and corresponding levels connector thereof, and a vertical level gang mould piece and corresponding vertical level connector thereof.
It should be noted that, a distributor, generally include allocation units, also can comprise a plurality of allocation units, a plurality of allocation units can separately arrange, and also can be arranged in parallel, the present invention does not make any additional limits to this, as long as can realize, data allocations is organized to LED unit to each, comprise the LED unit of each lamp string, each row or each row, thereby show.
Arbitrary Switching Power Supply is also connected with at least one group of LED unit, for according to described vision signal, adjusts output condition, for each group LED unit powers; Wherein, described output condition at least comprise output current, output voltage, power output one of them.For example, described output condition is output current; Or described output condition is output voltage and output current etc.Like this, the gradation data that need to show according to LED unit, prenotices Switching Power Supply, synchronous adjustment output current, or synchronously adjust output voltage, or synchronously adjust power output, or synchronously adjust output current and power output, or synchronously adjust output current and output voltage etc.; Thereby normally and stably carry out gray scale demonstration, ensured brightness and depth, guaranteed display effect; And avoided Switching Power Supply need adopt the stand-by power supply of relatively high power, improved the service efficiency of Switching Power Supply.
Embodiment 7
As shown in Figure 8, similar to embodiment 6, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
This routine feature is, adopts described allocation units as described distributor, each Switching Power Supply is arranged on to described allocation units inner; Like this, described control unit is connected with described allocation units, and described control unit sends to described allocation units by described vision signal.
The difference of this example and embodiment 6 is, described control unit is connected with each Switching Power Supply by described allocation units, and described control unit sends to each Switching Power Supply by described allocation units by described vision signal.
Or described control unit is connected with described allocation units, be not connected with each Switching Power Supply, described control unit sends to described allocation units by described vision signal; Described allocation units also for according to each Switching Power Supply corresponding respectively organize LED unit, the data of respectively organizing after packet are transferred to respectively to each corresponding Switching Power Supply; Each Switching Power Supply also for according to its reception respectively organize data, adjust output condition, for each group LED unit powers.
For example, the corresponding a certain group of LED unit of a certain Switching Power Supply, is transferred to this Switching Power Supply by this group LED cell data after packet, is transferred to the data of this group LED unit by this Switching Power Supply basis, the synchronous output condition of adjusting, for each group LED unit powers.Like this, the gradation data that just can need to show according to LED unit, synchronously adjusts output current by Switching Power Supply, or synchronously adjusts output voltage, or synchronously adjusts power output; Thereby normally and stably carry out gray scale demonstration, ensured brightness and depth, guaranteed display effect; And avoided Switching Power Supply need adopt the stand-by power supply of relatively high power, improved the service efficiency of Switching Power Supply.
Embodiment 8
As shown in Figure 9, similar to embodiment 7, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
The difference of this example and embodiment 7 is, in this example, and for arbitrary group of LED unit, the grouped data of described allocation units is the transmission of tree formula, in other words, described allocation units output to the holding wire of outside a certain group of LED unit, in parallel with each LED unit of this group.Simultaneously by each LED cell data of this group, send to each LED unit of this group.
Embodiment 9
As shown in figure 10, similar to above-described embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
Described allocation units in described distributor, are connected with at least one group of LED unit by each Switching Power Supply, for carrying out packet, each group data are transferred to the corresponding LED unit of respectively organizing by each Switching Power Supply respectively.
Arbitrary Switching Power Supply is also connected with at least one group of LED unit, for according to described vision signal, adjusts output condition, for each group LED unit powers; Each Switching Power Supply is the corresponding related data of respectively organizing LED unit of exporting also.Wherein, described output condition at least comprise output current, output voltage, power output one of them.
For example, each Switching Power Supply is connected with one group of LED unit respectively, and described allocation units are connected with one group of LED unit by a Switching Power Supply respectively, by each Switching Power Supply, by the data after grouping, is transferred to respectively the corresponding LED unit of respectively organizing.In this case, each Switching Power Supply is except adjusting output condition according to each grouped data, and for outside each group LED unit powers, also the related data of LED unit is respectively organized in corresponding output; Related data comprises one or more in grey scale signal, clock signal, ground signalling, latch signal, enable signal.
Embodiment 10
As shown in figure 11, similar to above-described embodiment 6, embodiment 7, embodiment 8, the present embodiment provides a kind of distribution system, and it comprises at least one distributor, and some groups of LED unit; And the present embodiment also provides a kind of distributor, this distributor comprises interconnective control unit and distributor.
Adopt described allocation units as described distributor, each Switching Power Supply is arranged on to described allocation units inner; Like this, described control unit is connected with described allocation units, can also directly be connected with each Switching Power Supply, and described control unit sends to respectively described allocation units and wherein each Switching Power Supply by described vision signal; Or described control unit also can be connected with each Switching Power Supply by described allocation units, by described allocation units, the data of respectively organizing after grouping are sent to respectively to each Switching Power Supply.
Described allocation units, are connected with at least one group of LED unit by each Switching Power Supply, for carrying out packet, each group data are transferred to the corresponding LED unit of respectively organizing by each Switching Power Supply respectively.
Arbitrary Switching Power Supply is also connected with at least one group of LED unit, for according to described vision signal, adjusts output condition, for each group LED unit powers; Each Switching Power Supply is the corresponding related data of respectively organizing LED unit of exporting also.Wherein, described output condition at least comprise output current, output voltage, power output one of them.
For example, each Switching Power Supply is connected with one group of LED unit respectively, and described allocation units are connected with one group of LED unit by a Switching Power Supply respectively, by each Switching Power Supply, by the data after grouping, is transferred to respectively the corresponding LED unit of respectively organizing.In this case, each Switching Power Supply is except adjusting output condition according to each grouped data, and for outside each group LED unit powers, also the related data of LED unit is respectively organized in corresponding output; Related data comprises one or more in grey scale signal, clock signal, ground signalling, latch signal, enable signal.
Embodiment 11
As shown in figure 12, on the basis of above-mentioned each example, the present embodiment provides the practical situations of a kind of distribution system and distributor thereof, by PC or other data source, vision signal is passed through to transmit control device, receive controller and be sent at least one distributor of the present invention, by this distributor cascade, send vision signal or related data to other distributors, or, by this distributor, will after grouping, respectively organize data and the adjustment output condition after each Switching Power Supply is adjusted, be transferred to corresponding respectively organizing on LED unit, thereby form the display effect of display screen or lamp decoration.
It should be noted that, other distributors of this distributor cascade, can be with this distributor acting in conjunction in identical LED display or a lamp decoration; Be the data of respectively organizing LED unit that each distributor is processed respectively one or more LED displays or lamp decoration.
Embodiment 12
On the basis of the various embodiments described above, the present embodiment provides a kind of distribution method, and it comprises the following steps.
Steps A, send vision signal to allocation units, carry out packet, each group data are transferred to respectively to the corresponding LED unit of respectively organizing; For example, in steps A, described allocation units adopt serial or parallel connection mode, the data of a certain group are outputed in each LED unit of this group; And for example, in steps A, described allocation units are respectively by each Switching Power Supply, and each group data are transferred to respectively to the corresponding LED unit of respectively organizing.
Step B, transmission vision signal, to each Switching Power Supply corresponding to described allocation units, are adjusted output condition, for each group LED unit powers; Wherein, described output condition at least comprise output current, output voltage, power output one of them; For example, in step B, described transmission vision signal, to each Switching Power Supply, is to send vision signal to each Switching Power Supply by allocation units.
And for example, in step B, by allocation units according to each Switching Power Supply corresponding respectively organize LED unit, using each group data as the required vision signal of each Switching Power Supply, be transferred to respectively each corresponding Switching Power Supply; Each Switching Power Supply is respectively organized data according to its reception, adjusts output condition, for each group LED unit powers.
Or above-mentioned each method can also comprise step C: adopt a cascade mode pre-seting, described vision signal is sent to other allocation units and each corresponding Switching Power Supply thereof.For example, gang mould pieces at different levels respectively correspondence arrange a kind of cascade mode, and according to a certain cascade mode, by its corresponding asynchronous interface, are connected with an asynchronous interface of other distributor.For example, described control unit can arrange two cascade modules and corresponding asynchronous interface thereof, comprises a levels gang mould piece and corresponding levels connector thereof, and a vertical level gang mould piece and corresponding vertical level connector thereof.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. a distribution method, is characterized in that, comprises the following steps:
A, send vision signal to allocation units, carry out packet, each group data are transferred to respectively to the corresponding LED unit of respectively organizing;
B, transmission vision signal, to each Switching Power Supply corresponding to described allocation units, are adjusted output condition, for each group LED unit powers; Wherein, described output condition at least comprise output current, output voltage, power output one of them; According to described, respectively organize the gradation data that LED unit need to show, prenotice Switching Power Supply, synchronously adjust output current, or synchronously adjust output voltage, or synchronously adjust power output, or synchronously adjust output current and power output, or synchronously adjust output current and output voltage;
After step B, also perform step C: adopt one to pre-set cascade mode, described vision signal is sent to other allocation units and each corresponding Switching Power Supply thereof.
2. distribution method according to claim 1, is characterized in that,
In step B, described transmission vision signal, to each Switching Power Supply, is to send vision signal to each Switching Power Supply by allocation units;
Or, in step B, by allocation units according to each Switching Power Supply corresponding respectively organize LED unit, using each group data as the required vision signal of each Switching Power Supply, be transferred to respectively each corresponding Switching Power Supply; Each Switching Power Supply is respectively organized data according to its reception, adjusts output condition, for each group LED unit powers;
Or in steps A, described allocation units adopt serial or parallel connection mode, the data of a certain group are outputed in each LED unit of this group;
Or in steps A, described allocation units are respectively by each Switching Power Supply, each group data are transferred to respectively to the corresponding LED unit of respectively organizing.
3. a distributor, is characterized in that, comprises interconnective control unit and distributor, and described distributor comprises allocation units and at least one Switching Power Supply;
Described control unit arranges a signaling interface, for receiving outside vision signal, and sends to described distributor by described control unit;
Described allocation units are also connected with at least one group of LED unit of outside, for according to described vision signal, carry out packet, and each group data are transferred to respectively to the outside corresponding LED unit of respectively organizing;
Arbitrary Switching Power Supply is also connected with at least one group of LED unit of outside, for according to described vision signal, adjusts output condition, for each group LED unit powers; Wherein, described output condition at least comprise output current, output voltage, power output one of them; According to described, respectively organize the gradation data that LED unit need to show, prenotice Switching Power Supply, synchronously adjust output current, or synchronously adjust output voltage, or synchronously adjust power output, or synchronously adjust output current and power output, or synchronously adjust output current and output voltage.
4. distributor according to claim 3, it is characterized in that, described control unit also arranges a configuration interface and at least one cascade module and corresponding asynchronous interface thereof, gang mould pieces at different levels are respectively used to arrange a kind of cascade mode, and according to a certain cascade mode, by its corresponding asynchronous interface, be connected with an asynchronous interface of other distributor.
5. distributor according to claim 3, is characterized in that, described control unit sends to each Switching Power Supply by described allocation units by described vision signal.
6. distributor according to claim 3, is characterized in that, described allocation units also for according to each Switching Power Supply corresponding respectively organize LED unit, each group data are transferred to respectively to each corresponding Switching Power Supply; Each Switching Power Supply also for according to its reception respectively organize data, adjust output condition, for each group LED unit powers.
7. according to the distributor described in claim 5 or 6, it is characterized in that, described allocation units output to the holding wire of outside a certain group of LED unit, with each LED units in series or in parallel of this group.
8. distributor according to claim 7, is characterized in that, described allocation units are as described distributor setting, and it is inner that each Switching Power Supply is arranged on described allocation units.
9. distributor according to claim 7, is characterized in that, described allocation units are respectively by each Switching Power Supply, and respectively the organize LED unit corresponding with each Switching Power Supply is connected.
10. a distribution system, is characterized in that, comprises at least one distributor as described in as arbitrary in claim 3 to 9, and some groups of LED unit;
Described allocation units are also connected with at least one group of LED unit; Arbitrary Switching Power Supply is also connected with at least one group of LED unit.
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| CN200910076648.6A CN101466189B (en) | 2009-01-12 | 2009-01-12 | Distributor, distributing system and method |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656042A (en) * | 2009-09-16 | 2010-02-24 | 北京巨数数字技术开发有限公司 | LED display system |
| TWI518655B (en) * | 2011-11-18 | 2016-01-21 | 友達光電股份有限公司 | Display and method for generating power output of the display |
| TW201322231A (en) * | 2011-11-23 | 2013-06-01 | Au Optronics Corp | Display and method for generating power output of the display |
| CN105788521B (en) * | 2014-12-25 | 2018-07-24 | 西安诺瓦电子科技有限公司 | LED display screen system and condition detection method |
| CN105788519B (en) * | 2014-12-25 | 2018-09-21 | 西安诺瓦电子科技有限公司 | LED display screen system, data distributor, display control method |
| CN107042690B (en) * | 2016-02-05 | 2020-06-19 | 富士施乐株式会社 | Drive control device for light emitting element, droplet drying device, and image forming apparatus |
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| CN201017609Y (en) * | 2007-03-28 | 2008-02-06 | 深圳市同洲电子股份有限公司 | Display control system of large-sized LED display screen |
| CN101192371A (en) * | 2006-11-28 | 2008-06-04 | 康佳集团股份有限公司 | LEDLED display module group signal |
| US20080157697A1 (en) * | 2006-12-29 | 2008-07-03 | Industrial Technology Research Institute | Apparatus for controlling lamp source and electric equipment and power socket therof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006331945A (en) * | 2005-05-27 | 2006-12-07 | Toshiba Lighting & Technology Corp | Lighting control system |
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| CN101192371A (en) * | 2006-11-28 | 2008-06-04 | 康佳集团股份有限公司 | LEDLED display module group signal |
| US20080157697A1 (en) * | 2006-12-29 | 2008-07-03 | Industrial Technology Research Institute | Apparatus for controlling lamp source and electric equipment and power socket therof |
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