CN108513393A - Lamp string unit, LED cascade systems and data transmission method - Google Patents
Lamp string unit, LED cascade systems and data transmission method Download PDFInfo
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- CN108513393A CN108513393A CN201810236176.5A CN201810236176A CN108513393A CN 108513393 A CN108513393 A CN 108513393A CN 201810236176 A CN201810236176 A CN 201810236176A CN 108513393 A CN108513393 A CN 108513393A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Abstract
This application discloses a kind of lamp string unit, LED cascade systems and data transmission methods.Lamp string unit includes the first data channel and the second data channel, is respectively used to transmission data signal；And drive module, straight-through module and multiple LED light, the drive module are located at first data channel, the straight-through module is located at second data channel, and the drive module drives multiple LED light according to the data-signal that first data channel is transmitted.The lamp string unit carries out redundant data transmissions using data channel independent of each other, reduces wiring complexity, reverse data transmission can be carried out when multiple lamp strings are unit cascaded, to improve system reliability.
Description
Technical field
The present invention relates to LED display fields, more particularly, to lamp string unit, LED cascade systems and transmission side data
Method.
Background technology
LED (light-emitting diode) lamp string is widely used in landscape and lamp ornaments lighting and display field.
Fig. 1 shows that a kind of LED cascade systems 100 of the prior art, a communication output mouth of control terminal 101 provide one
The data-signal of the cascade lamp string unit of row, respectively there are one communication port, including input terminal for each 102 opposite sides of lamp string unit
Mouth and output port.One of the cascade lamp string unit of a line, the input port connection control terminal 101 of first order lamp string unit is logical
Believe output port, the input port of the output port connection rear stage lamp string unit of subsequent previous stage lamp string unit.Per a line grade
The data-signal forward direction that the lamp string unit of connection exports 101 output port of control terminal is transmitted, and realizes display.
When certain level-one lamp string unit breaks down in LED cascade systems 100, all lamp string units of rear class will be unable to receive
Data-signal, and then the corresponding multiple LED light of each lamp string unit of rear class is caused to can not work normally, reduce LED grades of contacts
The system reliability of system.
To improve the system reliability of LED cascade systems, each lamp string unit in LED cascade systems 200 shown in Fig. 2
202 include two input ports and an output port positioned at not homonymy.The cascade lamp string unit of a line, first order lamp string list
The identical data-signal of two-way that two input ports reception control terminals 201 of member export, two of subsequent rear stage lamp string unit
Input port is separately connected the input port and an output port of previous stage lamp string unit.LED cascade systems 200 pass through redundancy
The mode of transmission can solve the problems, such as that certain grade of lamp string cell failure leads to loading error occurring in LED cascade systems, but LED is cascaded
The two paths of data that rear class lamp string unit receives in system 200 is different, needs to carry out data processing inside lamp string unit, and use
The mode of redundant transmission increases the complexity of system wiring.
It is expected that the reliability for further decreasing LED cascade systems wiring complexity and raising LED cascade systems is aobvious to be promoted
Show effect.
Invention content
The object of the present invention is to provide a kind of lamp string unit that can solve the above technical problem and LED cascade systems.
According to an aspect of the present invention, a kind of lamp string unit is provided, the lamp string unit includes the first data channel and the
Two data channel are respectively used to transmission data signal；And drive module, straight-through module and multiple LED light, the drive module
Positioned at first data channel, the straight-through module is located at second data channel, and the drive module is according to described
The data-signal of one data channel transmission drives multiple LED light.
Preferably, first data channel further includes：First port is connected to the input terminal of the drive module, and
And receive the data-signal；And second port, it is connected to the output end of the drive module, and send the data letter
Number.
Preferably, the input terminal and output end of the drive module are respectively adaptive bidirectional port, are receiving the number
It is believed that number when be automatically configured to input terminal, be automatically configured to output end when sending the data-signal.
Preferably, second data channel further includes：Third port is connected to the input terminal of the straight-through module；With
And the 4th port, it is connected to the output end of the straight-through module.
Preferably, the straight-through module directly forwards the data-signal.
According to another aspect of the present invention, a kind of LED cascade systems are provided, the LED cascade systems include control terminal；With
And multiple lamp string units, including：First data channel and the second data channel, are respectively used to transmission data signal；And driving
Module, straight-through module and multiple LED light, the drive module are located at first data channel, and the straight-through module is located at institute
The second data channel is stated, the multiple lamp string unit receives the data-signal, and the forward direction that cascades with one another from the control terminal
The data-signal is transmitted, the second data of the first data channel connection i+1 grade lamp string unit of i-stage lamp string unit are logical
Road, the second data channel of the i-stage lamp string unit connects the first data channel of the i+1 grade lamp string unit, described
It is whole more than or equal to 1 that drive module drives multiple LED light, wherein i according to the data-signal that first data channel is transmitted
Number.
Preferably, the first order lamp string unit in the multiple lamp string unit is connected with the control terminal, to obtain two
The parallel data-signal in road.
Preferably, first data channel of the afterbody lamp string unit in the multiple lamp string unit and described
Two data channel form loop, to data-signal described in the reverse transfer since the afterbody lamp string unit.
Preferably, first data channel of the i-stage lamp string unit and the i+1 grade lamp string unit is described
The distribution of second data channel is identical, second data channel of the i-stage lamp string unit and the i+1 grade lamp string unit
First data channel distribution it is identical.
Preferably, first data channel of the i-stage lamp string unit and the i+1 grade lamp string unit is described
The distribution of first data channel is identical, second data channel of the i-stage lamp string unit and the i+1 grade lamp string unit
Second data channel distribution it is identical.
Preferably, first data channel includes first port, is connected to the input terminal of the drive module, and is connect
Receive the data-signal；And second port, it is connected to the output end of the drive module, and send the data-signal.
Preferably, the input terminal and output end of the drive module are respectively adaptive bidirectional port, are receiving the number
It is believed that number when be automatically configured to input terminal, be automatically configured to output end when sending the data-signal.
Preferably, second data channel includes：Third port is connected to the input terminal of the straight-through module；And
4th port is connected to the output end of the straight-through module.
Preferably, the straight-through module directly forwards the data-signal.
Preferably, the LED cascade systems are one kind in LED illumination System and LED display system.
According to another aspect of the present invention, a kind of data transmission method applied to above-mentioned LED cascade systems is provided, is wrapped
It includes：Control terminal exports the parallel data-signal of two-way to the LED cascade systems；And first via data-signal is described in
First data channel of LED cascade system first order lamp string units is to the LED cascade systems forward direction transmission data signal, and second
Circuit-switched data signal by the second data channel of the LED cascade systems first order lamp string unit to the LED cascade systems just
To transmission data signal, when the first via data-signal or the second circuit-switched data signal interruption transmission, another way
It is believed that the reverse transmission data signal number since afterbody lamp string unit.
Lamp string unit of the present invention carries out redundant data transmissions using two data independent of each other channel, and data channel is opposite
The communication port symmetric design of both sides setting, reduces wiring complexity.Multiple unit cascaded formation loops of lamp string so that LED
Cascade system can carry out reverse data transmission, and data transmission is more flexible, to improve the display effect of system reliability and LED
Fruit.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, above-mentioned and other purposes of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows a kind of structural schematic diagram of LED cascade systems of the prior art；
Fig. 2 shows the structural schematic diagrams of another LED cascade systems of the prior art；
Fig. 3 shows the internal structure schematic diagram of lamp string unit of the present invention；
Fig. 4 shows the structural schematic diagram of LED cascade systems of the present invention；
Fig. 5 shows the structural schematic diagram of LED cascade systems first embodiment of the present invention.
Specific implementation mode
Hereinafter reference will be made to the drawings is more fully described the present invention.In various figures, identical element is using similar attached
Icon is remembered to indicate.For the sake of clarity, the various pieces in attached drawing are not drawn according to than row.Furthermore, it is possible to which certain is not shown
A little well known parts.
Many specific details of the present invention are described hereinafter, to be more clearly understood that the present invention.But as this
The technical staff in field it will be appreciated that as, can not realize the present invention according to these specific details.
The present invention can be presented in a variety of manners, some of them case explained below.
Fig. 3 shows the internal structure schematic diagram of lamp string unit of the present invention.Lamp string unit 20 includes mutually independent first number
According to channel and the second data channel, the first data channel and the second data channel are used for transmission data-signal.
Drive module 21 is located in the first data channel, and the one of the first port A connections drive module 21 of lamp string unit 20
A port receives data-signal and drives the multiple LED light 22 being connect with drive module 21, the second port B of lamp string unit 20
The another port for connecting drive module 21, exports remaining data-signal.
Straight-through module 22 is located in the second data channel, and the one of the third port C connections straight-through module 22 of lamp string unit 20
A port, the another port of the 4th port D connections straight-through module 22 of lamp string unit 20, the second data channel is via straight-through module
22 forwarding data-signals.
It should be noted that drive module 21 includes shift register, memory module, read module, data processing module
Concrete operating principle Deng, the drive module 21 is the field known to the staff of this field, and details are not described herein.Drive mould
The input terminal and output end of block 21 are, for example, adaptive bidirectional port, when the input terminal or output end of drive module 21 send number
It is believed that number when, the port Auto-matching be output port；When the input terminal or output end of drive module 21 receive data-signal
When, which is input port.
The first port A and third port C of lamp string unit 20 are located at the side of lamp string unit, second port B in the present invention
Be located at the other side of lamp string unit with the 4th port D, but in the present invention lamp string unit specific implementation it is without being limited thereto, lamp string unit
First port A and the 4th port D be located at the side of lamp string unit, second port B and third port C are located at the another of lamp string unit
Side.In Fig. 3 I be, for example, lamp string unit internal structure schematic diagram, II is, for example, the rotation of two data channel of lamp string unit in Fig. 3
180 ° of internal structure schematic diagram, in lamp string unit with the input terminal of first port A and second port the B drive module 21 connecting
It is adaptive bidirectional port with output end, is used for third port C and the 4th port the D straight-through module 22 connecting in lamp string unit
Data-signal is forwarded, therefore in practical applications, two data channel rotate 180 ° in lamp string unit proposed by the present invention, still may be used
With normal work.
Lamp string unit of the present invention carries out redundant data transmissions using data channel independent of each other, reduces lamp string unit cloth
Line complexity, the port symmetrical in each circuit data channel design the transmitted in both directions for realizing data-signal in lamp string unit, in turn
When multiple lamp strings are unit cascaded, data-signal can be reversed transmission, to improve system reliability.
Fig. 4 shows the structural schematic diagram of LED cascade systems of the present invention.
As shown in figure 4, LED cascade systems 300 include control terminal 301 and the cascade lamp string unit 302 of multirow, each lamp string
Unit 302 drives multiple LED light, and lamp string unit is, for example, lamp string unit described above.
The first data channel of first order lamp string unit receives that control terminal 301 exports in the cascade lamp string unit of a line the
Data-signal all the way is transmitted to this grade of drive module and drives this grade of multiple LED light, and remaining data signal is passed through the first data
Channel transfer to second level lamp string unit the second data channel；First order lamp string the second data channel of unit receives control terminal
Second circuit-switched data signal of 301 outputs, the first data channel of second level lamp string unit is transmitted to by this grade of straight-through module.
Second data channel of second level lamp string unit receives remaining first via data-signal, passes through this grade of straight-through module
It is transmitted to the first data channel of next stage lamp string unit；First data channel of second level lamp string unit receives the second circuit-switched data
Signal is transmitted to this grade of drive module and is driven to this grade of multiple LED light, and by remaining second circuit-switched data signal transmission to next
Second data channel of grade lamp string unit.
The rest may be inferred, and the second data of the first data channel connection i-stage lamp string unit of i+1 grade lamp string unit are logical
Road, the first data channel of the second data channel connection i-stage lamp string unit of i+1 grade lamp string unit, multiple lamp string units
Drive module multiple LED light of this grade are driven according to the data-signal of reception, to the last level-one lamp string unit, afterbody
First data channel of lamp string unit 10 forms loop with the second data channel.Wherein i is the integer more than or equal to 1.
It should be noted that the two paths of data channel of first order lamp string unit is connect with control terminal, it is parallel to obtain two-way
Data-signal.First data channel of lamp string unit, which receives data-signal, need to first pass through shift LD in such as lamp string unit
Device processing, will drive the data transmission of this grade of lamp string unit to drive module, drive module drives this grade more according to data-signal
A LED light and by the second data channel of remaining data signal transmission to next stage lamp string unit, the second number of lamp string unit
Any processing need not be done according to channel reception to data-signal, is directly transferred to the first data channel of next stage lamp string unit
In.
In the cascade lamp string unit of a line, first order lamp string unit receives the two-way parallel data signal of control terminal output,
First data channel of first order lamp string unit receives the first via data-signal exported by control terminal, according to LED cascade systems
Loop first drive multiple LED light of the odd level headed by the corresponding multiple LED light of first order lamp string unit, then from last
Level-one lamp string unit starts the LED light of reverse transmission data signal driving even level until the corresponding LED of second level lamp string unit
Until lamp, when the correspondence lamp string unit that first via data signal transmission to drive module malfunctions, first via data signal transmission
It terminates.First order lamp string the second data channel of unit receives the second circuit-switched data signal exported by control terminal, is contacted according to LED grades
The loop of system first drives multiple LED light of the even level headed by the corresponding multiple LED light of second level lamp string unit, then from most
Rear stage lamp string unit starts the LED light of reverse transmission data signal driving odd level until first order lamp string unit is corresponding
Until LED light, when the correspondence lamp string unit that the second circuit-switched data signal transmission to drive module malfunctions, the second circuit-switched data signal passes
Defeated termination.
At this time in addition to the corresponding multiple LED light of the lamp string unit of error can not work normally in the cascade lamp string unit of a line
Except, remaining lamp string unit at different levels can work normally, and enhance system reliability, and data channel independent of each other carries out
Redundant data transmissions reduce wiring complexity.
When the driving circuit error of certain level-one lamp string unit in LED cascade systems being only described in detail herein, remaining is each
The principle of grade lamp string unit normal work.But when the lamp string unit of adjacent two-stage even multistage even level or odd level
When drive module malfunctions, remaining lamp string unit at different levels still can work normally, concrete operating principle and above-mentioned level-one lamp string list
Operation principle when the drive module error of member is similar, and details are not described herein.
Fig. 5 shows the structural schematic diagram of LED cascade systems first embodiment of the present invention.
As shown in figure 5, being the specific connected mode schematic diagram of LED cascade systems of the present invention.Above-mentioned LED cascade systems 400
Including control terminal 301 and multiple lamp string units 20, multiple lamp string units 20 are lamp string unit proposed by the present invention, internal specific
Details are not described herein for structure.
In the cascade lamp string unit of a line, the first port A of first order lamp string the first data channel of unit receives control terminal
The data-signal of 301 outputs is transmitted to this grade of drive module and is driven to this grade of multiple LED light, and remaining data signal is passed through
The second port B of first data channel is transmitted to the 4th port D of the second level the second data channel of lamp string unit；First order lamp string
The third port C of the second data channel of unit receives the data-signal that control terminal 301 exports, and is transmitted to by this grade of straight-through module
The second port B of the second level the first data channel of lamp string unit.
4th port D of the second level the second data channel of lamp string unit receives remaining data-signal, straight-through by this grade
Module transfer to next stage lamp string the first data channel of unit first port A；The second level the first data channel of lamp string unit
Second port B receives data-signal, is transmitted to this grade of drive module and is driven to this grade of multiple LED light, and by remaining data signal
The third port C of next stage lamp string the second data channel of unit is transmitted to by the first port A of the first data channel.
The rest may be inferred, to the last level-one lamp string unit, when the cascade lamp string unit of a line includes even number lamp string list
Member, the first port A of the first data channel of afterbody lamp string unit connect the third port C of the second data channel of this grade；
When the cascade lamp string unit of a line includes odd number lamp string unit, the second of the first data channel of afterbody lamp string unit
Port B connects the 4th port D of the second data channel of this grade.
In the present embodiment, the second data channel of the first data channel and i+1 grade lamp string unit of i-stage lamp string unit
Distributing position is identical, and the second data channel of i-stage lamp string unit and the first data channel of i+1 grade lamp string unit are distributed position
It sets identical.
It should be noted that the implementation of LED cascade systems is not limited to the above embodiments in the present invention, more specifically, i-stage
First data channel of lamp string unit is identical with the first data channel distributing position of i+1 grade lamp string unit, i-stage lamp string list
Second data channel of member is identical with the second data channel distributing position of i+1 grade lamp string unit.
Data transmission method provided by the invention applied to LED cascade systems of the present invention, it is parallel that control terminal exports two-way
Data-signal to above-mentioned LED cascade systems, first via data-signal passes through the first of LED cascade system first order lamp string units
Data channel passes through LED cascade system first order lamp strings to LED cascade system forward direction transmission data signals, the second circuit-switched data signal
Second data channel of unit is to LED cascade system forward direction transmission data signals.When first via data-signal or the second way
When being transmitted according to signal interruption, another way data-signal reverse transmission data signal since afterbody lamp string unit.Above-mentioned number
It can make the level-one in the cascade lamp string unit of a line in addition to error or mutual non-conterminous multistage lamp string list according to transmission method
Except the corresponding multiple LED light of member can not work normally, remaining lamp string unit at different levels can work normally, and it is reliable to enhance system
Property, and data channel independent of each other carries out redundant data transmissions, reduces wiring complexity.
It should be noted that the foregoing description of the present embodiment only more clearly describes the present embodiment, implementation of the invention
Without being limited thereto, the lamp string unit of above-mentioned odd level and the lamp string port layout of even level can be interchanged.And in the present embodiment
LED cascade systems can be any one of LED illumination System and LED display system, and then realize illumination by LED or show
Show function.
It should be noted that herein, the relational terms of such as one end and the other end or the like are used merely to one
Entity, which is either operated, to be distinguished without necessarily requiring or implying these entities with another entity or operation or operates it
Between there are any actual relationship or orders.It is intended to moreover, belonging to "comprising", " comprising " or its any other variant
Cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
As described above according to the embodiment of the present invention, there is no all details of detailed descriptionthe for these embodiments, also not
Limit the specific embodiment that the invention is only described.These embodiments are chosen and specifically described to this specification, is in order to preferably
Explain the principle of the present invention and practical application, to enable skilled artisan utilize well the present invention and
Modification on the basis of the present invention uses.Although present invention has been described in detail with reference to the aforementioned embodiments, this field
Those of ordinary skill should understand that：It still can be with technical scheme described in the above embodiments is modified or right
Its all or part of technical characteristic carries out equivalent replacement；And these modifications or replacements, do not make the sheet of corresponding technical solution
Matter is detached from the range of each embodiment technical solution of the present invention.
Claims (26)
1. a kind of lamp string unit, including：
First data channel and the second data channel, are respectively used to transmission data signal；And
Drive module, straight-through module and multiple LED light, the drive module are located at first data channel, the straight-through mould
Block is located at second data channel, and the drive module is multiple according to the data-signal driving that first data channel is transmitted
LED light.
2. lamp string unit according to claim 1, wherein first data channel further includes：
First port, is connected to the input terminal of the drive module, and receives the data-signal；And
Second port, is connected to the output end of the drive module, and sends the data-signal.
3. lamp string unit according to claim 2, wherein the input terminal and output end of the drive module are respectively adaptive
Bidirectional port is answered, input terminal is automatically configured to when receiving the data-signal, is automatically configured when sending the data-signal
For output end.
4. lamp string unit according to claim 1, wherein second data channel further includes：
Third port is connected to the input terminal of the straight-through module；And
4th port is connected to the output end of the straight-through module.
5. lamp string unit according to claim 4, wherein the straight-through module directly forwards the data-signal.
6. a kind of LED cascade systems, including：
Control terminal；And
Multiple lamp string units, including：
First data channel and the second data channel, are respectively used to transmission data signal；And
Drive module, straight-through module and multiple LED light, the drive module are located at first data channel, the straight-through mould
Block is located at second data channel,
Wherein, the multiple lamp string unit receives the data-signal from the control terminal, and the positive transmission institute that cascades with one another
Data-signal is stated, the second data channel of the first data channel connection i+1 grade lamp string unit of i-stage lamp string unit is described
Second data channel of i-stage lamp string unit connects the first data channel of the i+1 grade lamp string unit, the drive module
It is the integer more than or equal to 1 to drive multiple LED light, wherein i according to the data-signal of first data channel transmission.
7. LED cascade systems according to claim 6, wherein the first order lamp string unit in the multiple lamp string unit
It is connected with the control terminal, to obtain the parallel data-signal of two-way.
8. LED cascade systems according to claim 6, wherein the afterbody lamp string list in the multiple lamp string unit
First data channel and second data channel of member form loop, to since the afterbody lamp string unit
Data-signal described in reverse transfer.
9. LED cascade systems according to claim 6, wherein first data channel of the i-stage lamp string unit
It is identical as the second data channel distribution of i+1 grade lamp string unit, second number of the i-stage lamp string unit
It is identical as the first data channel distribution of i+1 grade lamp string unit according to channel.
10. LED cascade systems according to claim 6, wherein first data of the i-stage lamp string unit are logical
Road is identical as the first data channel distribution of i+1 grade lamp string unit, and described the second of the i-stage lamp string unit
Data channel is identical as the second data channel distribution of i+1 grade lamp string unit.
11. LED cascade systems according to claim 6, wherein first data channel includes：
First port, is connected to the input terminal of the drive module, and receives the data-signal；And
Second port, is connected to the output end of the drive module, and sends the data-signal.
12. LED cascade systems according to claim 11, wherein the input terminal and output end of the drive module are distinguished
For adaptive bidirectional port, it is automatically configured to input terminal when receiving the data-signal, certainly when sending the data-signal
It is dynamic to be configured as output to hold.
13. LED cascade systems according to claim 6, wherein second data channel includes：
Third port is connected to the input terminal of the straight-through module；And
4th port is connected to the output end of the straight-through module.
14. LED cascade systems according to claim 13, wherein the straight-through module directly forwards the data-signal.
15. LED cascade systems according to claim 6, wherein the LED cascade systems be selected from LED illumination System and
One kind in LED display system.
16. a kind of data transmission method for LED cascade systems, including：
Control terminal exports the parallel data-signal of two-way to the LED cascade systems；And
First via data-signal is by the first data channel of the LED cascade systems first order lamp string unit to LED grades described
The positive transmission data signal of contact system, the second circuit-switched data signal pass through the second of the LED cascade systems first order lamp string unit
Data channel to the LED cascade systems forward direction transmission data signal,
Wherein, when the first via data-signal or the second circuit-switched data signal interruption are transmitted, another way data-signal
The reverse transmission data signal since afterbody lamp string unit.
17. data transmission method according to claim 16, wherein the LED cascade systems include：
Control terminal；And
Multiple lamp string units, including：
First data channel and the second data channel, are respectively used to transmission data signal；And
Drive module, straight-through module and multiple LED light, the drive module are located at first data channel, the straight-through mould
Block is located at second data channel,
Wherein, the multiple lamp string unit receives the data-signal from the control terminal, and the positive transmission institute that cascades with one another
Data-signal is stated, the second data channel of the first data channel connection i+1 grade lamp string unit of i-stage lamp string unit is described
Second data channel of i-stage lamp string unit connects the first data channel of the i+1 grade lamp string unit, the drive module
It is the integer more than or equal to 1 to drive multiple LED light, wherein i according to the data-signal of first data channel transmission.
18. data transmission method according to claim 17, wherein the first order lamp string list in the multiple lamp string unit
It is first to be connected with the control terminal, to obtain the parallel data-signal of two-way.
19. data transmission method according to claim 17, wherein the afterbody lamp string in the multiple lamp string unit
First data channel of unit and second data channel form loop, to be opened from the afterbody lamp string unit
Data-signal described in beginning reverse transfer.
20. data transmission method according to claim 17, wherein first data of the i-stage lamp string unit
Channel is identical as the second data channel distribution of i+1 grade lamp string unit, and described the of the i-stage lamp string unit
Two data channel are identical as the first data channel distribution of i+1 grade lamp string unit.
21. data transmission method according to claim 17, wherein first data of the i-stage lamp string unit
Channel is identical as the first data channel distribution of i+1 grade lamp string unit, and described the of the i-stage lamp string unit
Two data channel are identical as the second data channel distribution of i+1 grade lamp string unit.
22. data transmission method according to claim 17, wherein first data channel includes：
First port, is connected to the input terminal of the drive module, and receives the data-signal；And
Second port, is connected to the output end of the drive module, and sends the data-signal.
23. data transmission method according to claim 22, wherein the input terminal and output end of the drive module are distinguished
For adaptive bidirectional port, it is automatically configured to input terminal when receiving the data-signal, certainly when sending the data-signal
It is dynamic to be configured as output to hold.
24. data transmission method according to claim 17, wherein second data channel includes：
Third port is connected to the input terminal of the straight-through module；And
4th port is connected to the output end of the straight-through module.
25. data transmission method according to claim 24, wherein the straight-through module directly forwards the data to believe
Number.
26. data transmission method according to claim 17, wherein the LED cascade systems are selected from LED illumination System
With one kind in LED display system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236176.5A CN108513393B (en) | 2018-03-21 | 2018-03-21 | Light string unit, LED cascading system and data transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236176.5A CN108513393B (en) | 2018-03-21 | 2018-03-21 | Light string unit, LED cascading system and data transmission method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108513393A true CN108513393A (en) | 2018-09-07 |
| CN108513393B CN108513393B (en) | 2024-04-02 |
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| CN201810236176.5A Active CN108513393B (en) | 2018-03-21 | 2018-03-21 | Light string unit, LED cascading system and data transmission method |
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