CN103607573A - Video signal transmission method and device - Google Patents
Video signal transmission method and device Download PDFInfo
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- CN103607573A CN103607573A CN201310603936.9A CN201310603936A CN103607573A CN 103607573 A CN103607573 A CN 103607573A CN 201310603936 A CN201310603936 A CN 201310603936A CN 103607573 A CN103607573 A CN 103607573A
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Abstract
The invention provides a video signal transmission method and device. The method includes the first step of judging whether looping-in input signals exist in a display unit when video access signals are received, the second step of combining the received video access signals and the looping-in input signals if the looping-in input signals exist in the display unit, the third step of detecting the path number of the combined video signals and carrying out partition on a whole data transmission cycle according to the path number of the video signals to obtain minor cycles in the corresponding path number, and the fourth step of respectively transmitting corresponding video signals in the minor cycles. Through the video signal transmission method and device, transmitting multi-path video signals in a cable is achieved, and the bandwidth utilization rate in the video signal transmitting process is effectively improved.
Description
Technical field
The present invention relates to combination technical field, particularly relate to a kind of video-signal transmission method and a kind of video signal transmission device.
Background technology
Along with the development of combination Display Technique, the application of combination technology becomes more and more extensive.A joined screen system is spliced by a plurality of display units conventionally, and by a main control system, described a plurality of display units is sent to control command, controls the picture disply of whole combination.
In traditional video-splicing wall, in order opening across screen window, as shown in Figure 1, signal source need to be got up by cable articulating, and adopt the mode of transmission of one line vision signal in a route cable to carry out the transmission of vision signal.But signal articulating adopts SERDES(SERializer/DESerializer, serializer/de-serializers) agreement, bandwidth is more than 10G; And the general bandwidth of video signal is 2G left and right, therefore adopt the mode of transmission of one line vision signal in a route cable greatly to waste bandwidth.
Summary of the invention
Based on this, the invention provides a kind of video-signal transmission method and device, can improve the bandwidth utilization rate in video signal transmission process.
For achieving the above object, the present invention adopts following technical scheme:
A video-signal transmission method, comprises the following steps:
When receiving incoming video signal, judge whether this display unit has existed articulating input signal;
If so, the incoming video signal receiving and described articulating input signal are merged;
The way of combining data detection rear video signal, and according to the way of described vision signal, whole data transfer cycle is divided, the minor cycle of corresponding number obtained;
Within each minor cycle, transmit respectively corresponding vision signal.
A video signal transmission device, comprising:
Judge module, for when receiving incoming video signal, judges whether this display unit has existed articulating input signal;
Signal merges module, in the situation that judgment result is that of described judge module is that the incoming video signal receiving and described articulating input signal are merged;
Detect and divide module, for detection of the way that merges rear video signal, and according to the way of described vision signal, whole data transfer cycle being divided, obtaining the minor cycle of corresponding number;
Transport module, for transmitting respectively corresponding vision signal within each minor cycle.
By above scheme, can be found out, video-signal transmission method of the present invention and device, when receiving incoming video signal, first judge whether this display unit has existed articulating input signal, if it is the incoming video signal receiving and articulating input signal are merged, and according to the way that merges rear video signal, whole data transfer cycle is divided, in the minor cycle obtaining in division, transmit respectively corresponding vision signal.The present invention has realized the object of transmitting multi-path video signal in a kind of cable, has effectively improved the bandwidth utilization rate in video signal transmission process.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a route cable transmission of one line vision signal in traditional scheme;
Fig. 2 is the schematic flow sheet of a kind of video-signal transmission method in the embodiment of the present invention;
Fig. 3 carries out the schematic diagram of signal merging in the embodiment of the present invention;
Fig. 4 is the schematic diagram of a route cable transmitting multi-path video signal in the embodiment of the present invention;
Fig. 5 is video signal transmission process schematic diagram in the embodiment of the present invention;
Fig. 6 is the structural representation of a kind of video signal transmission device in the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Shown in Figure 2, a kind of video-signal transmission method, comprises the following steps:
Step S101, when receiving incoming video signal, judges whether this display unit has existed articulating input signal; If enter step S102, otherwise illustrate in current display unit and do not have other vision signal except this incoming video signal, now can still according to the method for a route cable transmission of one line vision signal in traditional scheme, this incoming video signal be transmitted.
, if when receiving incoming video signal, having there is articulating input signal in step S102, the incoming video signal receiving and described articulating input signal is merged in this display unit.
As a good embodiment, the above-mentioned process that the incoming video signal receiving and described articulating input signal are merged specifically can comprise as follows:
Step S1021, carries out signal separation process to described articulating input signal;
Step S1022, judges the incoming video signal whether existing in the articulating input signal after signal separation after winding one circle; If enter step S1023, otherwise enter step S1024;
Step S1023, if there is the incoming video signal after winding one circle in articulating input signal, can delete the incoming video signal after described winding one circle, and by remaining articulating input signal with described in the incoming video signal that receives merge.
As shown in Figure 3, in figure, capitalization adds numeral (as A1, B1, C1) represent that a upper cell rings goes out signal (this cell rings enters signal), independent capitalization (as A) represents current incoming video signal, the vision signal of supposing current display unit access is A, the vision signal of encircling out is the signal after articulating input merges with A, if include the incoming video signal (being designated as A1) after winding one circle in articulating input, for fear of conflict, after merging with the A of current display unit access again after the A1 that encircles can being deleted, encircle out, the signal A encircling out is called after A1 still.
, if there is not the incoming video signal after winding one circle in articulating input signal, now there is not the problem of signal conflict in step S1024, therefore can be directly by the articulating input signal after separation and described in the incoming video signal that receives merge.
Step S103, the way of combining data detection rear video signal, and according to the way of described vision signal, whole data transfer cycle is divided, obtain the minor cycle of corresponding number.
Step S104 transmits respectively corresponding vision signal within each minor cycle.
As shown in Figure 4, in the embodiment of the present invention, vision signal can access at each display unit, and can merge in articulating signal and go.As Fig. 4 is numbered 00 display unit, have vision signal 1 access, 01 display unit has vision signal 2 accesses, and 12 display units have vision signal 3 accesses.According to generally, 00 display unit inside only has vision signal 1; 01,02 display unit inside only has vision signal 1 and vision signal 2; 12, there are all vision signals 11,10 display unit inside.Make each display unit all have all vision signals, the vision signal of rear end input must be turned back to front end, the articulating output of considering the least significant end (as 10 display units in Fig. 4) of articulating comprises all vision signal inputs, therefore as a good embodiment, in the present invention, the articulating output signal of the last display unit of combination can be outputed to the articulating input of first display unit (as 00 display unit in Fig. 4), the articulating input signal of display unit headed by one-tenth.
For 00 display unit, articulating input has vision signal 1, vision signal 2, vision signal 3, itself be the input source of vision signal 1, the vision signal 1 that therefore 00 display unit accesses self is encircled out after merging with the vision signal 2 of articulating input, vision signal 3.For display unit 01, articulating input has vision signal 1, vision signal 2, vision signal 3, itself be the input source of vision signal 2, therefore 01 display unit encircles out after self vision signal 2 of access can being merged with the vision signal 1 of articulating, vision signal 3.Remaining element the like.
As shown in Figure 5, in the present invention, the transmission of data has been carried out to time-division processing, whole data transfer cycle is divided and is divided into several minor cycles, in each minor cycle, transmitted respectively corresponding vision signal.Now, as a good embodiment, after the transmission that completes a road vision signal, start the transmission of next road vision signal before, can also add a signal distinguishing mark, in order to distinguish each road vision signal.Further, this signal distinguishing mark can take a bit (bit) position of data.Receiving terminal (articulating input) is received after signal, carries out signal separation process, and then has realized a cable transmission multi-channel video signal; Can add a sign to vision signal in addition, be incoming video signal or articulating input signal for distinguishing.
In Fig. 5, at a data transfer cycle, in figure, signal transmission enables to become 1 during this period of time, carries out transfer of data.When transfer of data, first rising edge (process of 0-1) that multiple signals are distinguished is to first trailing edge (process of 1-0), and this period is carried out the transmission of first via video data, the like, between second rising edge to the second trailing edge, transmit the second tunnel vision signal.The signal of different bandwidth can be transmitted together, the concrete sequential that needs only the described signal distinguishing mark of control can be controlled as the signal transmission cycle of each different in width of Fig. 5.
Corresponding with above-mentioned a kind of video-signal transmission method, the present invention also provides a kind of video signal transmission device, as shown in Figure 6, comprising:
Signal merges module 102, in the situation that judgment result is that of described judge module is that the incoming video signal receiving and described articulating input signal are merged;
Detect and divide module 103, for detection of the way that merges rear video signal, and according to the way of described vision signal, whole data transfer cycle being divided, obtaining the minor cycle of corresponding number;
As a good embodiment, described signal merges module and can comprise:
Segregant module, for carrying out signal separation process to described articulating input signal;
Winding judgement submodule, for judging whether the articulating input signal after signal separation exists the incoming video signal after winding one circle;
First merges submodule, in the situation that judgment result is that of submodule of described winding judgement be, the incoming video signal after described winding one circle is deleted, and by remaining articulating input signal with described in the incoming video signal that receives merge;
Second merges submodule, in the situation that described winding judgement submodule the determination result is NO,, by the articulating input signal after separation with described in the incoming video signal that receives merge.
Be appreciated that term used in the present invention " first ", " second " etc. can be in this article for describing various elements, but these elements are not limited by these terms.These terms are only for distinguishing first element and another element.For instance, without departing from the scope of the invention, the first merging submodule can be called to the second merging submodule, and similarly, the second merging submodule can be called to the first merging submodule.The first merging submodule and second merges submodule and both merges submodule, but it is not same merging submodule.
As a good embodiment, described video signal transmission device can also comprise:
Mark adds module, for after the transmission completing a road vision signal, start the transmission of next road vision signal before, add a signal distinguishing mark.
As a good embodiment, described signal distinguishing mark can take a bit of data.
As a good embodiment, described video signal transmission device can also comprise:
Articulating control module, for the articulating output signal of the last display unit of combination being outputed to the articulating input of first display unit, the articulating input signal of display unit headed by one-tenth.
Other technical characterictic of above-mentioned a kind of video signal transmission device is identical with a kind of video-signal transmission method of the present invention, and it will not go into details herein.
Unless context separately has the description of specific distinct, the element in the present invention and assembly, the form that quantity both can be single exists, and form that also can be a plurality of exists, and the present invention does not limit this.Although the step in the present invention is arranged with label, and be not used in the precedence that limits step, unless expressly stated the order of step or the execution of certain step need other steps as basis, otherwise the relative order of step is adjustable.
By above scheme, can find out, video-signal transmission method of the present invention and device, when receiving incoming video signal, first judge whether this display unit has existed articulating input signal, if it is the incoming video signal receiving and articulating input signal are merged, and according to the way that merges rear video signal, whole data transfer cycle is divided, in the minor cycle obtaining in division, transmit respectively corresponding vision signal.The present invention has realized the object of transmitting multi-path video signal in a kind of cable, has effectively improved the bandwidth utilization rate in video signal transmission process.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a video-signal transmission method, is characterized in that, comprises the following steps:
When receiving incoming video signal, judge whether this display unit has existed articulating input signal;
If so, the incoming video signal receiving and described articulating input signal are merged;
The way of combining data detection rear video signal, and according to the way of described vision signal, whole data transfer cycle is divided, the minor cycle of corresponding number obtained;
Within each minor cycle, transmit respectively corresponding vision signal.
2. video-signal transmission method according to claim 1, is characterized in that, the process that the incoming video signal receiving and described articulating input signal are merged comprises:
Described articulating input signal is carried out to signal separation process;
Judge the incoming video signal whether existing in the articulating input signal after signal separation after winding one circle;
If so, the incoming video signal after described winding one circle is deleted, and by remaining articulating input signal with described in the incoming video signal that receives merge;
If not, by the articulating input signal after separation with described in the incoming video signal that receives merge.
3. video-signal transmission method according to claim 1 and 2, is characterized in that, after the transmission that completes a road vision signal, start the transmission of next road vision signal before, also comprise step: add a signal distinguishing mark.
4. video-signal transmission method according to claim 3, is characterized in that, described signal distinguishing mark takies a bit of data.
5. video-signal transmission method according to claim 1 and 2, is characterized in that, also comprises step:
The articulating output signal of the last display unit of combination is outputed to the articulating input of first display unit, the articulating input signal of display unit headed by one-tenth.
6. a video signal transmission device, is characterized in that, comprising:
Judge module, for when receiving incoming video signal, judges whether this display unit has existed articulating input signal;
Signal merges module, in the situation that judgment result is that of described judge module is that the incoming video signal receiving and described articulating input signal are merged;
Detect and divide module, for detection of the way that merges rear video signal, and according to the way of described vision signal, whole data transfer cycle being divided, obtaining the minor cycle of corresponding number;
Transport module, for transmitting respectively corresponding vision signal within each minor cycle.
7. video signal transmission device according to claim 6, is characterized in that, described signal merges module and comprises:
Segregant module, for carrying out signal separation process to described articulating input signal;
Winding judgement submodule, for judging whether the articulating input signal after signal separation exists the incoming video signal after winding one circle;
First merges submodule, in the situation that judgment result is that of submodule of described winding judgement be, the incoming video signal after described winding one circle is deleted, and by remaining articulating input signal with described in the incoming video signal that receives merge;
Second merges submodule, in the situation that described winding judgement submodule the determination result is NO,, by the articulating input signal after separation with described in the incoming video signal that receives merge.
8. according to the video signal transmission device described in claim 6 or 7, it is characterized in that, also comprise:
Mark adds module, for after the transmission completing a road vision signal, start the transmission of next road vision signal before, add a signal distinguishing mark.
9. video signal transmission device according to claim 8, is characterized in that, described signal distinguishing mark takies a bit of data.
10. according to the video signal transmission device described in claim 6 or 7, it is characterized in that, also comprise:
Articulating control module, for the articulating output signal of the last display unit of combination being outputed to the articulating input of first display unit, the articulating input signal of display unit headed by one-tenth.
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| CN201310603936.9A CN103607573B (en) | 2013-11-25 | 2013-11-25 | video signal transmission method and device |
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| CN201310603936.9A CN103607573B (en) | 2013-11-25 | 2013-11-25 | video signal transmission method and device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819755A (en) * | 2009-02-27 | 2010-09-01 | 深圳Tcl新技术有限公司 | Monitor joined screen with function of displaying multi-channel video signals and realization method thereof |
| CN102088621A (en) * | 2011-03-10 | 2011-06-08 | 唐杰 | Television wall server |
| CN102123247A (en) * | 2010-12-31 | 2011-07-13 | Tcl新技术（惠州）有限公司 | Loop-connection system for splicing unit and implementation method thereof |
| US20120300121A1 (en) * | 2011-05-27 | 2012-11-29 | Cheng-Nan Lien | Tv wall system capable of displaying images according to a positioning signal |
| CN102957875A (en) * | 2011-08-17 | 2013-03-06 | 中国移动通信集团公司 | Image processing method, device and system |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819755A (en) * | 2009-02-27 | 2010-09-01 | 深圳Tcl新技术有限公司 | Monitor joined screen with function of displaying multi-channel video signals and realization method thereof |
| CN102123247A (en) * | 2010-12-31 | 2011-07-13 | Tcl新技术（惠州）有限公司 | Loop-connection system for splicing unit and implementation method thereof |
| CN102088621A (en) * | 2011-03-10 | 2011-06-08 | 唐杰 | Television wall server |
| US20120300121A1 (en) * | 2011-05-27 | 2012-11-29 | Cheng-Nan Lien | Tv wall system capable of displaying images according to a positioning signal |
| CN102957875A (en) * | 2011-08-17 | 2013-03-06 | 中国移动通信集团公司 | Image processing method, device and system |
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