CN103685983B - A kind of host computer, ring lead to splicing module, video-signal transmission method and system - Google Patents
A kind of host computer, ring lead to splicing module, video-signal transmission method and system Download PDFInfo
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- CN103685983B CN103685983B CN201310717084.6A CN201310717084A CN103685983B CN 103685983 B CN103685983 B CN 103685983B CN 201310717084 A CN201310717084 A CN 201310717084A CN 103685983 B CN103685983 B CN 103685983B
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Abstract
The present invention is suitable for field of digital video, provides a kind of host computer, ring leads to splicing module, video-signal transmission method and system.Host computer leads to one ring of selection in splicing module from least two ring and leads to splicing module, and leads to splicing module to selected ring and send signal behavior instruction；Selected ring leads to splicing module and receives the signal behavior instruction that the host computer is sent, and the determining vision signal of signal behavior instruction is converted to high-definition digital display interface standard DP signal, and the DP signal is sent to next ring and leads to splicing module；It realizes that DP signal leads in splicing module in all rings that display screen includes to share；It further realizes the logical splicing module of ring and shows from next ring and lead to the received vision signal of splicing module.
Description
Technical field
The invention belongs to field of digital video more particularly to a kind of host computer, ring to lead to splicing module, video signal transmission side
Method and system.
Background technique
In the display screen being made of the splicing of multiple concatenation units, each concatenation unit is required to configuration distributor and control
The equipment such as device processed.
Existing concatenation unit is only capable of displaying the radiofrequency signal of single concatenation unit access, is unable to simultaneous display from other spellings
The vision signal of order member access, shares vision signal in this way, being not carried out concatenation unit.Such as：If some splicing is single
Member only has Video Graphics Array（Video Graphics Array, VGA）Interface is then only capable of displaying from the USB interface and accesses
Vision signal；If other concatenation units are also wanted to show the vision signal, there must be USB interface to access video letter
Number；
Summary of the invention
The purpose of the present invention is to provide a kind of video-signal transmission method and systems, it is intended to which solving existing display screen does not have
Realize the problem of concatenation unit shares same vision signal.
On the one hand, a kind of video-signal transmission method is applied to lead to splicing module by host computer and including at least two rings
Display screen composition system, the video-signal transmission method includes：
Host computer leads to one ring of selection in splicing module from least two ring and leads to splicing module, and to selected ring
Logical splicing module sends signal behavior instruction, and the signal behavior instructs one for being accessed from the logical splicing module of the ring of selection
Vision signal all the way is determined in road or multi-channel video signal；
Selected ring leads to splicing module and receives the signal behavior instruction that the host computer is sent, and by the signal
The vision signal that selection instruction determines is converted to high-definition digital display interface standard DP signal, the DP signal is sent to next
Ring leads to splicing module, and it is the logical spelling of ring that the output end for leading to splicing module with selected ring is connect that next ring, which leads to splicing module,
Connection module.
On the one hand, another object of the present invention is to provide a kind of video signal transmission system, the video signal transmission system
System includes：
Host computer and the display screen for leading to splicing module including at least two rings, wherein all rings lead to splicing module and connect into
The logical data transmission structure of one ring；
The host computer selects the logical splicing module of a ring for leading in splicing module from least two ring, and to
Selected ring leads to splicing module and sends signal behavior instruction, and the signal behavior instruction is for leading to splicing module from the ring of selection
Vision signal all the way is determined in one or more vision signal accessed；
The ring of selection leads to splicing module, the signal behavior instruction sent for receiving the host computer, and will be described
The determining vision signal of signal behavior instruction is converted to high-definition digital display interface standard DP signal, and the DP signal is sent to
Next ring leads to splicing module, and it is the ring that the output end for leading to splicing module with selected ring is connect that next ring, which leads to splicing module,
Logical splicing module.
On the one hand, another object of the present invention is to provide a kind of host computer, and the host computer includes：
Module selecting unit leads to splicing module for leading to one ring of selection in splicing module from least two rings；
Vision signal determination unit sends signal behavior instruction, the signal for leading to splicing module to selected ring
Selection instruction, which is used to lead in one or more vision signal that splicing module is accessed from the ring of selection, determines video letter all the way
Number.
On the one hand, another object of the present invention is to provide a kind of logical splicing module of ring, and the ring leads to splicing module and includes：
Instruction receiving unit, for receiving the module selection instruction and signal behavior instruction that the host computer is sent；
Transmission unit is converted, if leading to the logical splicing mould of ring that splicing module is module selection instruction selection for the ring
The determining vision signal of signal behavior instruction is then converted to high-definition digital display interface standard DP signal by block, will be described
The ring that DP signal is connect to the output end for leading to splicing module with the ring leads to splicing module and sends.
The beneficial effects of the invention are as follows：It all rings that display screen includes are led into splicing module establishes ring and leads to and connect；By upper
Position machine control is specified to lead to splicing module reception vision signal by which ring, and further control is led to splicing module by specified ring and received
Which road vision signal, be converted to DP signal for specified vision signal, is connect with reaching DP signal is successively forwarded to ring to lead to
Each ring leads to splicing module, realizes the shared of vision signal.In turn, ring leads to splicing module and can also show from the logical splicing of next ring
The received vision signal of module.In addition, each ring, which leads to splicing module, can access various video format, including：USB interface, AV connect
Mouth, HDMI interface and DVI interface etc.；Then the different video signal of access is uniformly converted into the output of DP signal；And by institute
State DP signal led to by ring connect successively be forwarded to each ring lead to splicing module, realize comprising the ring lead to splicing module display
Screen carries out tiled display.Due to being to be wanted to interface using unified interface when ring leads between splicing module and forwards the DP signal
Ask simple.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the architecture diagram for the video signal transmission system that the embodiment of the present invention one provides；
Fig. 2 is the implementation flow chart of video-signal transmission method provided by Embodiment 2 of the present invention；
Fig. 3 is the composite structural diagram for the host computer that the embodiment of the present invention three provides；
Fig. 4 is the composite structural diagram that the ring that the embodiment of the present invention four provides leads to splicing module.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
In embodiments of the present invention, display screen leads to splicing module by multiple rings and forms.Host computer can control display screen
Display can also control and which ring lead to splicing module incoming video signal by, and the vision signal of access is converted to high definition number
Word display interface standard（DisplayPort, DP）The DP signal is forwarded to the ring successively spliced and leads to splicing module by signal；It is real
Now the DP signal is led in all rings shared in splicing module.
Embodiment one：
Fig. 1 shows the framework of video signal transmission system provided in this embodiment, for ease of description, illustrate only with
The relevant part of the embodiment of the present invention.
A kind of video signal transmission system, the video signal transmission system include：
Host computer 3 and the display screen 4 for leading to splicing module 41 including at least two rings, wherein all rings lead to splicing module 41
Connect into the logical data transmission structure of a ring；
The host computer 3 leads to splicing module for leading to one ring of selection in splicing module 41 from least two ring, and
Lead to splicing module to selected ring and send signal behavior instruction, the signal behavior instruction is for leading to splicing mould from the ring of selection
Vision signal all the way is determined in one or more vision signal that block is accessed；
The ring of selection leads to splicing module, the signal behavior instruction sent for receiving the host computer 3, and will be described
The determining vision signal of signal behavior instruction is converted to high-definition digital display interface standard DP signal, and the DP signal is sent to
Next ring leads to splicing module, and it is the ring that the output end for leading to splicing module with selected ring is connect that next ring, which leads to splicing module,
Logical splicing module 41.
Wherein, the host computer 3 can have the device of control function for computer, IPAD etc..
It is worth noting that it is that ring leads to and connects that all ring, which leads to splicing module,.Specifically, the logical splicing of all rings
Module 41 forms a ring, i.e., each ring leads to the input terminal of splicing module 41 and output end connects a ring respectively and leads to splicing module
41 output end and next ring lead to the input terminal of splicing module 41.In addition, each ring, which leads to splicing module 41, can also have one
Or multiple video interfaces（The type of plurality of video interface may be the same or different）, the type of video interface is at least
Including：USB interface, AV interface, HDMI interface and DVI interface.
In turn, the ring leads to splicing module, for sending out when the DP signal leads to splicing module from the selected ring
Afterwards, it receives the DP signal and stores.
Specifically, after the DP signal, which leads to splicing module from the selected ring, to be sent out, ring leads to the logical spelling of the ring connect
Connection module can be sequentially received the DP signal；Wherein, the logical spelling of a upper ring is received from input terminal when some ring leads to splicing module
When the DP signal that connection module is sent, store the DP signal, by the DP signal from output end send the DP signal to
Next ring leads to splicing module.Wherein, the logical splicing module of the selected ring is：Ring leads to one that the ring connect leads in splicing module
Ring leads to splicing module；Similarly, a upper ring leads to splicing module and the logical splicing module of next ring is also respectively：Ring, which leads to, to be connect
Ring lead to splicing module in a ring lead to splicing module.
In addition, formed since display screen 4 is led to the logical splicing module 41 of the ring connect by ring, it is spelled respectively according to ring is logical
Position of the connection module 41 in display screen 4, each ring lead to splicing module 41 and only show that the part of corresponding position in display screen 4 is drawn
Face.
In turn, when display screen 4 needs to update picture, host computer 3 can be directly to the logical splicing mould of the ring selected
Block issues signal behavior instruction.Specifically, it is connected if host computer 3 leads to splicing module 41 with each ring respectively, it can be with
Lead to splicing module to the specified ring and pointedly issues the signal behavior instruction；Which need ring to lead to splicing module to
41 carry out video access control, then lead to splicing module 41 to this ring and send the signal behavior instruction.
Preferably, the ring that splicing module 41 is led to since all rings have been established, which leads to, to be connect, and the host computer 3 is specifically used for：
Only lead to 41 sending module selection instruction of splicing module and signal behavior instruction to a ring successively to turn
It sends out module selection instruction described and the signal behavior instructs to ring all rings for leading to and connecing to lead to splicing module 41, the module choosing
It selects instruction and selects the logical splicing module of a ring for leading in splicing module 41 from all rings.
Specifically, it is connect since all rings lead to splicing module 41 and formed ring and lead to, in turn, host computer 3 only needs and one
The ring leads to splicing module 41 and connects, and leads to splicing module 41 to this ring and sends the module selection instruction and the signal behavior
Instruction.In turn, the module selection instruction and signal behavior instruction are led to by ring and are connect by the logical splicing module 41 of this ring
It is successively forwarded to each ring and leads to splicing module 41.If it is that the ring that the module selection instruction is specified is logical that some ring, which leads to splicing module 41,
Splicing module is connect then after receiving the module selection instruction for the determining vision signal of signal behavior instruction
It receives, and stops receiving the other road vision signals for accessing the logical splicing module of the ring.
In turn, received vision signal is converted to DP signal by the logical splicing module of the specified ring of the module selection instruction,
And leads to splicing module 41 to next ring from output end and send.And so on, next ring leads to splicing module 41 and saves DP letter
After number, the ring also connecting to the output end for leading to splicing module 41 with next ring leads to splicing module 41 and sends the DP letter
Number.And then realize that the DP signal leads to the shared of splicing module 41 to each ring.
In turn, the logical splicing module 41 of each ring goes out logical 41 needs of splicing module of this ring from the DP signal screening received
The part of display；Such as：Display screen 4 leads to splicing module 41 by three an equal amount of rings and forms in the way of upper, middle and lower, from
And for the video pictures in DP signal, superposed ring leads to the upper display that splicing module 41 shows the video pictures, position
Ring in middle part leads to the middle part picture that splicing module 41 shows the video pictures, and the ring positioned at lower part leads to the display of splicing module 41 should
The bottom picture of video pictures.
As an embodiment of the present invention, interface of the logical splicing module 41 of the ring for incoming video signal includes：VGA connects
Mouth, AV interface, HDMI interface and DVI interface.
In this way, the ring, which leads to splicing module 41, passes through corresponding one or more VGA video of access of one or more USB interfaces
Signal；The ring leads to splicing module 41 and accesses one or more AV vision signal by the way that one or more AV interface is corresponding；It is described
Ring leads to splicing module 41 and passes through corresponding one or more HDMI video signal of access of one or more HDMI interface；The ring is logical to spell
Connection module 41 accesses one or more DVI vision signal etc. by the way that one or more DVI is corresponding.
In turn, the signal behavior instruction is received when the ring that the module selection instruction is specified leads to splicing module, according to
The signal behavior instruction, which is determined, carries out specific aim reception to which road vision signal of access；Again from the vision signal determined
Corresponding video interface receives the road vision signal, and is converted to DP signal to the vision signal of access, such as：If the signal
Selection instruction determines that the received road vision signal is HDMI video signal, then the HDMI video signal is converted to DP signal.
As a specific embodiment of the invention, all rings lead to the connection of splicing module 41 and form a ring, it is established that ring is logical
Connection；Specifically, each ring, which leads to splicing module 41, has one for receiving the output end of DP signal, also has one and is used for
Send the input terminal of DP signal；The input termination ring of each logical splicing module 4 leads to the upper ring in connecing and leads to splicing module 41
Output end, the output termination ring of each logical splicing module 4 leads to the input terminal that next ring in connecing leads to splicing module 41.
At the same time, the RS-232 interface of host computer 3 passes through interface convertor（For RS-232 interface to be converted to RJ45
Interface）The RJ45 interface for leading to splicing module 41 with a ring is connect.
In this way, host computer 3 leads to 41 sending module selection instruction of splicing module and signal to a ring by RS-232 interface
Selection instruction leads to the logical splicing module 41 of all rings connect to be successively forwarded to ring.Specifically, ring leads to the logical spelling of each ring connect
Connection module 41 can be sequentially received the module selection instruction and signal behavior instruction；This is received when ring leads to splicing module 41
When module selection instruction, if this ring, which leads to splicing module 41, does not lead to splicing module for the ring that the module selection instruction is specified, this
A ring leads to splicing module 41 and is only used for being forwarded DP signal；If it is that the module selection instruction refers to that this ring, which leads to splicing module 41,
Fixed ring leads to splicing module, then this ring leads to splicing module 41 and is converted into the specified vision signal all the way of signal behavior instruction
DP signal leads to the logical splicing module 41 of all rings connect so as to which the DP signal is forwarded to ring.
Preferably, each ring, which leads to splicing module 41, can access one or more vision signal；Also, the logical splicing of ring
The video interface for incoming video signal that module 41 has may be the same or different, and each ring leads to splicing module 41
Can at least have following video interface：USB interface, AV interface, HDMI interface and DVI interface etc.；Accordingly, pass through difference
Video interface accesses corresponding vision signal.
Embodiment two：
It should be noted that the vision signal that video-signal transmission method and embodiment one that embodiment two provides provide passes
Defeated system is mutually applicable in.
Fig. 2 shows the processes for the video-signal transmission method that second embodiment of the invention provides, for ease of description, only
Show part related to the embodiment of the present invention.
A kind of video-signal transmission method, applied to the display screen for leading to splicing module by host computer and including at least two rings
The system of composition, the video-signal transmission method include：
Step S21, host computer lead to one ring of selection in splicing module from least two ring and lead to splicing module, and to institute
The ring of selection leads to splicing module and sends signal behavior instruction, and the signal behavior instruction is for leading to splicing module institute from the ring of selection
Vision signal all the way is determined in one or more vision signal of access；
Step S22, selected ring lead to splicing module and receive the signal behavior instruction that the host computer is sent, and will
The determining vision signal of the signal behavior instruction is converted to high-definition digital display interface standard DP signal, by the DP signal
It is sent to next ring and leads to splicing module, it is to lead to the output end company of splicing module with selected ring that next ring, which leads to splicing module,
The ring connect leads to splicing module.
It is worth noting that it is that ring leads to and connects that all ring, which leads to splicing module,.Display screen is by the logical splicing of multiple rings
Module is spliced.The logical splicing module cyclization of all rings, which leads to, to be connect, i.e., each ring leads to the input terminal and output end of splicing module
A ring is connected respectively leads to the output end of splicing module and the input terminal of the logical splicing module of next ring.
At the same time, the video-signal transmission method further includes：
After the DP signal, which leads to splicing module from the selected ring, to be sent out, the sequence connect is led to according to ring, each
The ring leads to splicing module and successively receives the DP signal and store.
Specifically, since each ring leads to splicing module, ring leads to and connects, the selected ring leads to splicing module and sends
After out, all rings lead in splicing module other than the selected ring leads to splicing module, lead to splicing from the selected ring
The ring of the output end connection of module leads to splicing module and starts, and other rings, which lead to splicing module, can all be sequentially received the DP letter
Number；At the same time, the ring for each receiving the DP signal, which leads to splicing module, to save the DP signal, and will connect
The DP signal received is forwarded to ring from output end and leads to the logical splicing module of next ring connect.
When display screen needs to update picture, had connected if host computer leads to splicing module with each ring respectively,（Such as：
The RS-232 interface of host computer, passes through interface convertor（For RS-232 interface to be converted to RJ45 interface）It is logical with a ring
The RJ45 interface of splicing module connects）, splicing module can be led to for the ring for obtaining vision signal and directly transmits signal choosing
Instruction is selected, when the ring leads to splicing module and receives signal behavior instruction, only receives the specified video of the signal behavior instruction
Signal；The ring leads to splicing module and the vision signal received is converted to DP signal.And then the ring leads to splicing module for DP signal
It is sent to the ring connecting with output end and leads to splicing module.And so on, DP signal is forwarded to ring and leads to the logical spelling of each ring connect
Connection module.
As an embodiment of the present invention, each ring, which leads to splicing module, can show that the entire video in the DP signal is drawn
Face.Wherein, the entire video pictures by PC control in which DP signal, the logical splicing module of which ring do not show described
Entire video pictures in DP signal.
As another embodiment of the present invention, splicing module is led to by each ring and shows the partial video in the DP signal respectively
Picture, thus, the display screen that all rings lead to splicing module composition shows the entire video pictures in the DP signal.Specifically,
The logical splicing module of each ring is required to the pre- image processing techniques that first passes through and is divided the entire video pictures in the DP signal
It cuts, extracts corresponding partial video picture；Each ring leads to splicing module and shows corresponding partial video picture, and then display screen
Show the entire video pictures in the DP signal.
Preferably, the ring for splicing module being led to since all rings have been established leads to and connects, and host computer is from described at least two
A ring leads to one ring of selection in splicing module and leads to splicing module, and leads to splicing module to selected ring and send signal behavior instruction
The step of, specially：
The host computer only leads to splicing module sending module selection instruction and signal behavior instruction to a ring
It is described successively to forward the module selection instruction and the signal behavior that all rings for leading to and connecing is instructed to ring to lead to splicing module
Module selection instruction, which is used to lead in splicing module from all rings, selects the logical splicing module of a ring.
Specifically, connect since all rings lead to splicing module and formed ring and lead to, in turn, host computer only need with described in one
Ring leads to splicing module connection, leads to splicing module to this ring and sends the module selection instruction and signal behavior instruction.Into
And the module selection instruction and the signal behavior are instructed to lead to connect by ring and be successively forwarded to by the logical splicing module of this ring
Each ring leads to splicing module.
If it is that the ring that the module selection instruction is specified leads to splicing module that some ring, which leads to splicing module, the mould is being received
It after block selection instruction, instructs determining vision signal to be received for the signal behavior, and stops to the logical spelling of the access ring
Other road vision signals of connection module are received.
If it is not that the specified ring of the module selection instruction is logical that the ring for receiving the module selection instruction, which leads to splicing module,
Splicing module, then the ring for receiving the module selection instruction leads to splicing module and is only used for storing and forwarding DP signal.
As an embodiment of the present invention, interface of the logical splicing module of the ring for incoming video signal includes：VGA connects
Mouth, AV interface, HDMI interface and DVI interface.
Specifically, the interface of each incoming video signal can access vision signal all the way.When the module selection instruction refers to
Fixed ring leads to splicing module and receives the signal behavior instruction, instructs selection to determine according to the signal behavior and receives which road regards
Frequency signal, and receive the corresponding video signal interface of road vision signal；And then determine the video of the vision signal received
The vision signal of the video format received is converted to DP signal by format.
The specified ring of the module selection instruction leads to splicing module and splices the DP signal to the ring connecting with output end is logical
Module is sent；In turn, it realizes that the DP signal leads in the logical splicing module of ring connect in ring to forward, the ring connect is led to each ring
Logical splicing module receives the DP signal and stores to the DP signal.
Embodiment three：
It should be noted that the host computer that embodiment three provides is suitable for the video signal transmission system that embodiment one provides
System applies also for the video-signal transmission method of the offer of embodiment two.
The composed structure that Fig. 4 shows the host computer of third embodiment of the invention offer illustrates only for ease of description
Part related to the embodiment of the present invention.
A kind of host computer, the host computer include：
Module selecting unit 31 leads to splicing module for leading to one ring of selection in splicing module from least two rings；
Vision signal determination unit 32 sends signal behavior instruction, the letter for leading to splicing module to selected ring
Number selection instruction, which is used to lead in one or more vision signal that splicing module is accessed from the ring of selection, determines video all the way
Signal.
Preferably, it is connect since all rings lead to splicing module and ring has been established lead to, host computer can an only institute thereto
It states ring and leads to the splicing module transmission module selection instruction and signal behavior instruction；In turn, the module selection is received
The ring of instruction and signal behavior instruction leads to splicing module, and the module selection instruction and the signal behavior are instructed successively
It is forwarded to ring and leads to the logical splicing module of each ring in connecing；Realize that host computer leads to the control of splicing module to all rings；In turn, institute
Module selecting unit 31 is stated, is specifically used for：
Only lead to splicing module sending module selection instruction to a ring successively to forward the module selection instruction extremely
Ring leads to all rings connect and leads to splicing module, and the module selection instruction, which is used to lead in splicing module from all rings, selects one
Ring leads to splicing module.
At the same time, the vision signal determination unit 32, is specifically used for：
Only lead to splicing module to a ring and sends the signal behavior instruction successively to forward the signal behavior to refer to
All rings for leading to ring and connecing are enabled to lead to splicing module.
Example IV：
It should be noted that the ring that example IV provides, which leads to splicing module, is suitable for the vision signal biography that embodiment one provides
Defeated system applies also for the video-signal transmission method of the offer of embodiment two.
The ring that Fig. 4 shows fourth embodiment of the invention offer leads to the composed structure of splicing module, for ease of description, only
Show part related to the embodiment of the present invention.
A kind of logical splicing module of ring, the ring lead to splicing module and include：
Instruction receiving unit 411, for receiving the module selection instruction and signal behavior instruction that the host computer is sent；
Transmission unit 412 is converted, is spelled if leading to the ring that splicing module is module selection instruction selection for the ring and leading to
The determining vision signal of signal behavior instruction is then converted to high-definition digital display interface standard DP signal by connection module, will
The ring that the DP signal is connect to the output end for leading to splicing module with the ring leads to splicing module and sends.
As an embodiment of the present invention, interface of the logical splicing module of the ring for incoming video signal includes：VGA connects
Mouth, AV interface, HDMI interface and DVI interface.
As an embodiment of the present invention, it is that ring leads to and connects that all rings, which lead to splicing module,；
At the same time, the logical splicing module of the ring further includes：
Store and forward unit 413 leads to if leading to the ring that splicing module is not the module selection instruction selection for the ring
Splicing module receives the logical spelling of a upper ring from input terminal after the DP signal, which leads to splicing module from the selected ring, to be sent out
The DP signal of connection module transmission simultaneously stores, and sends the DP signal to next ring from output end and leads to splicing module.
It will be appreciated by those skilled in the art that each unit for including for above-described embodiment three and/or example IV only by
It is divided, but is not limited to the above division according to function logic, as long as corresponding functions can be realized；In addition,
The specific name of each functional unit is also only for convenience of distinguishing each other, the protection scope being not intended to restrict the invention.
Those of ordinary skill in the art be further appreciated that implement the method for the above embodiments be can
It is completed with instructing relevant hardware by program, the program can be stored in a computer-readable storage medium
In, described storage medium, including ROM/RAM, disk, CD etc..
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Several equivalent substitute or obvious modifications are made under the premise of not departing from present inventive concept, and performance or use is identical, all should
It is considered as belonging to present invention scope of patent protection determined by the appended claims.
Claims (6)
1. a kind of video-signal transmission method, which is characterized in that be applied to by host computer and including the logical splicing mould of at least two rings
The system of the display screen composition of block, the video-signal transmission method include：
Host computer leads to one ring of selection in splicing module from least two ring and leads to splicing module, and spells to selected ring is logical
Connection module sends signal behavior instruction, signal behavior instruction for lead to that splicing module accessed from the ring of selection all the way or
Vision signal all the way is determined in multi-channel video signal；
Selected ring leads to splicing module and receives the signal behavior instruction that the host computer is sent, and by the signal behavior
The determining vision signal of instruction is converted to high-definition digital display interface standard DP signal, and the DP signal is sent to next ring and is led to
Splicing module, it is the logical splicing mould of ring that the output end for leading to splicing module with selected ring is connect that next ring, which leads to splicing module,
Block；
The host computer leads to one ring of selection in splicing module from least two ring and leads to splicing module, and to selected ring
Logical splicing module sends the step of signal behavior instruction, specially：
The host computer only to ring lead to splicing module sending module selection instruction and signal behavior instruction with according to
It is secondary to forward the module selection instruction and the signal behavior that all rings for leading to and connecing is instructed to ring to lead to splicing module, the module
Selection instruction, which is used to lead in splicing module from all rings, selects the logical splicing module of a ring；
The selected ring leads to splicing module and receives the signal behavior instruction that the host computer is sent, and by the signal
The vision signal that selection instruction determines is converted to high-definition digital display interface standard DP signal, the DP signal is sent to next
Ring leads to splicing module, specially：
If it is the logical splicing mould of ring that the module selection instruction is specified that the ring for receiving the module selection instruction, which leads to splicing module,
Block, then the ring leads to splicing module after receiving the module selection instruction, for the determining video of signal behavior instruction
Signal is received, and stops receiving the other road vision signals for accessing the logical splicing module of the ring；
The video-signal transmission method further includes：
If it is not the logical splicing of the specified ring of the module selection instruction that the ring for receiving the module selection instruction, which leads to splicing module,
Module, then the ring leads to splicing module and only the DP signal is stored and forwarded；
It is that ring leads to and connects that all ring, which leads to splicing module,；
The video-signal transmission method further includes：
After the DP signal, which leads to splicing module from the selected ring, to be sent out, the sequence connect is led to according to ring, it is each described
Ring leads to splicing module and successively receives the DP signal and store.
2. video-signal transmission method as described in claim 1, which is characterized in that the ring leads to splicing module for accessing view
The interface of frequency signal includes：USB interface, AV interface, HDMI interface and DVI interface.
3. a kind of video signal transmission system, which is characterized in that the video signal transmission system includes：
Host computer and the display screen for leading to splicing module including at least two rings, wherein all rings lead to splicing module and connect into one
The logical data transmission structure of ring；
The host computer leads to splicing module for leading to one ring of selection in splicing module from least two ring, and to selected
The ring selected leads to splicing module and sends signal behavior instruction, and the signal behavior instruction is connect for leading to splicing module from the ring of selection
Vision signal all the way is determined in one or more vision signal entered；
The ring of selection leads to splicing module, the signal behavior instruction sent for receiving the host computer, and by the signal
The vision signal that selection instruction determines is converted to high-definition digital display interface standard DP signal, the DP signal is sent to next
Ring leads to splicing module, and it is the logical spelling of ring that the output end for leading to splicing module with selected ring is connect that next ring, which leads to splicing module,
Connection module；
The host computer, is specifically used for：
It is described successively to forward only to lead to splicing module sending module selection instruction and signal behavior instruction to a ring
Module selection instruction and the signal behavior instruct to ring all rings for leading to and connecing to lead to splicing module, and the module selection instruction is used
The logical splicing module of a ring is selected in leading in splicing module from all rings；
The selected ring leads to splicing module, is specifically used for：After receiving the module selection instruction, selected for the signal
It selects the determining vision signal of instruction to be received, and stops connecing the other road vision signals for accessing the logical splicing module of the ring
It receives；
Non-selected ring leads to splicing module, for storing and forwarding the DP signal；
It is that ring leads to and connects that all ring, which leads to splicing module,；
The ring leads to splicing module, for receiving institute after the DP signal leads to splicing module from the selected ring and sends out
It states DP signal and stores.
4. video signal transmission system as claimed in claim 3, which is characterized in that the ring leads to splicing module for accessing view
The interface of frequency signal includes：USB interface, AV interface, HDMI interface and DVI interface.
5. a kind of ring leads to splicing module, which is characterized in that the ring leads to splicing module and includes：
Instruction receiving unit, for receiving the module selection instruction and signal behavior instruction of host computer transmission；
Transmission unit is converted, if leading to the ring that splicing module is module selection instruction selection for the ring leads to splicing module,
The determining vision signal of signal behavior instruction is then converted into high-definition digital display interface standard DP signal, the DP is believed
Number lead to splicing module transmission to the ring that connect of output end for leading to splicing module with the ring；
Store and forward unit, if leading to the logical splicing mould of ring that splicing module is not the module selection instruction selection for the ring
Block receives a upper ring from input terminal and leads to splicing module after the DP signal, which leads to splicing module from the selected ring, to be sent out
The DP signal of transmission simultaneously stores, and sends the DP signal to next ring from output end and leads to splicing module；Wherein, all institutes
Stating ring and leading to splicing module is that ring leads to and connects.
6. ring as claimed in claim 5 leads to splicing module, which is characterized in that the ring leads to splicing module for accessing video letter
Number interface include：USB interface, AV interface, HDMI interface and DVI interface.
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| CN105141905B (en) * | 2015-08-14 | 2019-09-10 | Tcl新技术（惠州）有限公司 | A kind of joined screen system and its implementation |
| CN106506985A (en) * | 2015-09-08 | 2017-03-15 | 北京东方久瑞系统工程技术有限公司 | A kind of realize that 4K ultra high-definition video rings are held high office the method that shows |
| CN105407310A (en) * | 2015-11-13 | 2016-03-16 | 武汉精测电子技术股份有限公司 | Method and system for converting low voltage differential signaling (LVDS) video signal into 8LANE DP video signal |
| CN105516619A (en) * | 2016-01-26 | 2016-04-20 | 深圳市维冠视界科技股份有限公司 | Four K splicing processor and four K splicing display system |
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