Background technology
Along with science and technology is maked rapid progress, information is constantly spread by various method, and video wall undoubtedly is a kind of good media of mass media, so be fit to outdoor broadcast, be applied in widely therefore that ad playing, open air are relayed, the concert scene in the open ... or the like occasion.
Seeing also shown in Figure 1ly, is existing known video wall Organization Chart.Existing known video wall framework is to send picture to all video wall main frames, for example first video wall main frame 13, second video wall main frame 15...... or the like with host computer 11.Its framework that couples is a kind of framework of parallel connection, and in more detail, existing known video wall framework is the transmission ends Tx with the RS232 serial ports on the host computer 11, is connected to the receiving end Rx of the RS232 serial ports on all video wall main frames.The receiving end Rx of the RS232 serial ports on the host computer 11 is connected on the transmission ends Tx of the RS232 serial ports on all video wall main frames.Such framework is in order to reach the purpose of transmitted in both directions, and host computer 11 can be seen the instruction that will transmit off from the transmission ends Tx of RS232 serial ports, remaining video wall main frame again by the receiving end Rx of its RS232 serial ports with command reception.On the contrary, instruct to host computer 11 when for example second video wall main frame 15 will send, then the transmission ends Tx by its RS232 serial ports sends out instruction, host computer 11 then by the receiving end Rx of its RS232 serial ports with command reception.
Existing known video wall framework has following problem:
1, when the video wall main frame does not all also have setting identification code, can only allow unidirectional instruction transmission, just host computer is sent to remaining video wall main frame with instruction.But when the tendency to develop of video wall main frame send instruction to give host computer,, be which video wall main frame is sent out then so host computer is beyond recognition this instruction because also do not have setting identification code.
2, PORT COM transmits data all certain distance limit, and for example once to transmit the communication length range of data be 25 feet to RS232.If data is not passed through any processing and amplifying, approximately can only transmit 25 feet, and such length approximately is the length of 20 video wall main frame series connection.20 video wall main frames so existing known video wall framework approximately can only be connected, this has just caused very big restriction.
3, existing known video wall framework, if will use a teleswitch or line control machine control video wall main frame wherein, video wall main frame Close All that then must the back is all is in order to avoid cause interference.Therefore, will set one of them video wall main frame each time, video wall Host Shutdown that just must the back is all waits until that directly the video wall host setting of target finishes back, again open the video wall main frame of back again, this has caused the very big inconvenience of user really.
This shows that above-mentioned existing video wall framework still has many defectives, and demands urgently further being improved.In order to solve the defective of existing video wall framework, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but does not see always that for a long time suitable design finished by development, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing video wall framework exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of new Video Wall Framework And Two-way Communication Means, can improve general existing video wall framework, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing video wall framework exists, and provide a kind of new video wall framework, technical matters to be solved is to make it can add a count value in a kind of form of communication command signal, even if make that the video wall main frame does not also have setting identification code, still can transmitted in both directions, thus be suitable for practicality more.
Another object of the present invention is to, a kind of video wall framework is provided, technical matters to be solved is to make it can be so that the number of video wall series connection increases, and can not be subjected to the restriction of data transmission length, thereby is suitable for practicality more.
A further object of the present invention is, a kind of video wall framework is provided, and technical matters to be solved is to make in control wherein during a video wall main frame, need not be with the video wall Host Shutdown of back, thus be suitable for practicality more.
An also purpose of the present invention is that a kind of video wall framework is provided, and technical matters to be solved is to make its identification code that can realize each video wall main frame of automatic setting very easily, thereby is suitable for practicality more.
Another purpose of the present invention is, overcome the defective that above-mentioned existing video wall both-way communication method exists, and provide a kind of new video wall both-way communication method, technical matters to be solved is only need utilize the communication command signal, just can make whole video wall framework do two-way transmission, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of video wall framework that the present invention proposes, it comprises: a controller; And a plurality of video wall main frames, each those video wall main frame respectively uses a RS232 serial ports, and the transmission end of this RS232 serial ports of this first video wall main frame is the receiving end that is connected to this RS232 serial ports of next video wall main frame, the rest may be inferred, and the transmission end of each those video wall main frame is connected to the receiving end of next video wall main frame; Wherein when this controller sends a command signal, this first video wall main frame in those video wall main frames can receive this command signal, adjust the setting value of video wall main frame, and transfer this command signal to the RS232 command signal, to send next video wall main frame to, and after next video wall main frame receives this RS232 command signal, can be according to the command signal of this RS232, adjust the default value of video wall main frame, and according to the identifying information of this video wall main frame or the command signal content that present default value removes to change this RS232, so that next video wall main frame is when receiving this order, the identifying information of last video wall main frame or last the default value that the video wall main frame is present can know for sure.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid video wall framework, wherein said controller are computing machines.
Aforesaid video wall framework, wherein said controller are line traffic control keyboards.
Aforesaid video wall framework, wherein said controller are wireless remote control keyboards.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to a kind of video wall framework that the present invention proposes, it comprises: a controller; And a plurality of video wall main frames, each those video wall main frame respectively uses a PORT COM, and each those video wall main frame is to connect with series system, makes the transmission end of respectively this PORT COM of each those video wall main frame be connected to the receiving end of next stage; Wherein when this controller sends a communication command signal, this first video wall main frame in those video wall main frames can receive this command signal, adjust the default value of video wall main frame, and go to change signal content in this communication command signal according to the identifying information of this video wall main frame or present default value, so that next video wall main frame is when receiving this order, the identifying information of last video wall main frame or last the default value that the video wall main frame is present can know for sure.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid video wall framework, wherein said controller are computing machines.
Aforesaid video wall framework, wherein said controller are line traffic control keyboards.
Aforesaid video wall framework, wherein said controller are wireless remote control keyboards.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to a kind of video wall both-way communication method that the present invention proposes, it may further comprise the steps: a host computer, use a PORT COM; And a plurality of video wall main frames; Wherein this host computer and those video wall main frame are to be connected in series, the transmission end of this host computer is the receiving end that is connected to one first video wall main frame in those video wall main frames, the rest may be inferred, make the transmission end of one-level wherein be connected to the receiving end of next stage, and the transmission end of afterbody video wall main frame retracted the receiving end of this host computer, to constitute a loop; This video wall both-way communication method comprises: this host computer produces an initial communication command signal, and wherein this initial communication command signal comprises at least one command code at least; After first video wall main frame of those video wall main frames receives this initial communication command signal, can adjust the default value of video wall main frame according to the communication command signal, and go to change signal content in this communication command signal according to the identifying information of this video wall main frame or present default value, revise the communication command signal to produce one, when making next stage video wall main frame receive this order, the identifying information of last video wall main frame can know for sure, or last default value that the video wall main frame is present, the rest may be inferred, pass the communication command signal back host computer, and reach the purpose of both-way communication.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid Video Wall Framework And Two-way Communication Means, wherein said communication command signal is an ASCII character.
Aforesaid Video Wall Framework And Two-way Communication Means, wherein said initial communication command signal is the RS232 specification.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The invention provides a kind of video wall framework, comprise host computer and several video wall main frames, and host computer all has RS232 communication serial ports with each video wall main frame.Wherein, the transmission ends of the RS232 serial ports of host computer is the receiving end that is connected to the RS232 serial ports of first video wall main frame in these video wall main frames.The transmission ends of each video wall main frame then is connected to the receiving end of next video wall main frame, and the transmission ends of the RS232 serial ports of last video wall main frame is the receiving end that is connected to the RS232 serial ports of host computer.When host computer sends a RS232 command signal, in these video wall main frames first receives this RS232 command signal video wall main frame, can change the handle in its RS232 command signal, and in this RS232 command signal, add count value, and when next video wall main frame receives this RS232 command signal, the count value in this RS232 command signal can be increased an increment.
The form of above-mentioned RS232 command signal comprises handle, identification code and command code, and handle is for having an ASCII character at least.
From another viewpoint, the present invention also provides a kind of video wall framework, comprises host computer and several video wall main frames, and host computer all has PORT COM with each video wall main frame.Host computer is to be connected with series system with these video wall main frames, makes the transmission ends of each PORT COM of host computer and each video wall main frame be connected to the receiving end of next stage, to constitute the loop.When host computer sends a communication command signal, in these video wall main frames first received the video wall main frame of this communication command signal, can change the handle in this communication command signal, and in this communication command signal, add count value, and when next video wall main frame receives this order, the count value in this communication command signal is increased an increment.
The form of above-mentioned communication command signal comprises handle, identification code and command code, and its handle is at least one ASCII character.
From another viewpoint, the present invention provides a kind of video wall framework again, comprise several video wall main frames, each video wall main frame is to be one another in series, and makes the transmission ends of PORT COM of one of them video wall main frame be connected to the receiving end of the PORT COM of next video wall main frame.When first video wall main frame in these video wall main frames receives this communication command signal, can change the handle in this communication command signal, and in this communication command signal, add count value, and count value can increase along with the increase of those video wall main frames.
The form of above-mentioned communication command signal comprises handle, identification code and command code, and its handle is at least one ASCII character.
In addition, the present invention more provides a kind of video wall both-way communication method, and wherein host computer and several video wall main frames are to be connected in series, and makes the transmission ends of one-level wherein be connected to the receiving end of next stage.This video wall both-way communication method comprises: host computer produces initial communication command signal, and this initial communication command signal comprises at least one handle, an identification code and a command code at least.And after first video wall main frame of these video wall main frames receives this initial communication command signal, can change the handle in this communication command signal, and add count value, revise the communication command signal to produce.When follow-up other video wall main frame received this correction communication command signal, the count value that can revise in communication command signal increased an increment.
In video wall both-way communication method of the present invention, the handle in the initial communication command signal is to be ASCII character, and its command code is to be the RS232 specification.
Via as can be known above-mentioned, the invention relates to a kind of Video Wall Framework And Two-way Communication Means.This video wall framework comprises host computer and several video wall main frames, and host computer all has RS232 communication serial ports with each video wall main frame.Wherein, the transmission ends of the RS232 serial ports of host computer is the receiving end that is connected to the RS232 serial ports of first video wall main frame in these video wall main frames.The transmission ends of each video wall main frame then is connected to the receiving end of next video wall main frame, and the transmission ends of the RS232 serial ports of last video wall main frame is the receiving end that is connected to the RS232 serial ports of host computer.When this host computer sends a RS232 command signal, in these video wall main frames first receives this RS232 command signal video wall main frame, can change the handle in its RS232 command signal, and in this RS232 command signal, add count value, and when next video wall main frame receives this RS232 command signal, the count value in this RS232 command signal can be increased an increment.Therefore, this video wall structure can reach the purpose of both-way communication easily.
By technique scheme, the present invention has following advantage at least:
As known from the above, the present invention comprises following advantage at least:
1, because the present invention in the communication command signal, add count value, and each video wall main frame all can add an increment when sending the communication command signal to one-level video wall main frame on count value.Therefore, the present invention also not before the setting identification code, just can do two-way transmission at the video wall main frame.
2, ways of connecting of the present invention is the PORT COM that the PORT COM of video wall main frame is connected to next stage video wall main frame.Signal is every will to be transmitted by the PORT COM of another grade through one-level video wall main frame, and the distance of data transmission is very short, and therefore video wall framework provided by the present invention can not limited by the distance that communication is transmitted.
3, the employed communication command signal of line control machine of the present invention and telepilot has count value too.When one of them video wall main frame of control, as long as check the content of count value, just can know which video wall main frame is done control, do not need to plug the plug of other video wall main frame to save time.
4, video wall framework of the present invention is because be the framework of series connection, so the communication command signal can be through each grade video wall main frame and to next stage video wall main frame.Therefore, revise, just can utilize upper level video wall main frame to set the identification code of next stage video wall main frame, so can very easily realize the identification code of each video wall main frame of automatic setting as long as communication command is done a bit.
In sum, video wall framework provided by the present invention is that the framework in parallel originally framework with series connection is replaced, and therefore can not be subjected to the influence of communication transmission distance restriction.And video wall both-way communication method provided by the present invention is that initial communication command signal is added count value, even therefore the video wall main frame is not also set identification code, video wall framework of the present invention still can use the function of both-way communication.It has above-mentioned plurality of advantages and practical value, and in like product and method, do not see have similar structural design and method to publish or use and really genus innovation, no matter it all has bigger improvement on product structure, method or function, have large improvement technically, and produced handy and practical effect, and more existing video wall framework has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its concrete structure of Video Wall Framework And Two-way Communication Means, method, step, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Seeing also shown in Figure 2ly, is the video wall Organization Chart according to a preferred embodiment of the present invention.We can be clearly seen that video wall framework provided by the present invention is a framework of taking a kind of series connection.In more detail, each video wall main frame is all to be one another in series, and host computer 21 makes its whole framework become a loop connecting the first video wall main frame 23 and n video wall main frame 29.Host computer 21 and all video wall main frames all have for example PORT COM of RS232 port, and this PORT COM can be divided into transmission ends Tx and receiving end Rx.
Please continue to consult shown in Figure 2, the transmission ends Tx of the PORT COM of host computer 21 is connected to first video wall main frame in these video wall main frames that are one another in series, the receiving end Rx of the PORT COM of the first video wall main frame 23 just, and the first video wall main frame, the 23 transmission ends Tx with its PORT COM are connected to the receiving end Rx of the PORT COM of the second video wall main frame 25.That is to say the transmission ends Tx of the PORT COM of each video wall main frame, all be connected to the receiving end Rx of the PORT COM of next stage video wall main frame.And last video wall main frame, the transmission ends Tx of the PORT COM of n video wall main frame 29 just then connects the receiving end Rx of the PORT COM of getting back to host computer, makes that video wall framework provided by the present invention is capable to become a loop.
Fig. 3 is the both-way communication method flow diagram according to a preferred embodiment of the present invention.Please consult Fig. 2 and shown in Figure 3 simultaneously, when host computer 21 will be when for example the second video wall main frame 25 be linked up, then shown in step S311, host computer 21 will produce an initial communication command signal, and will this initial communication command signal be sent out by the transmission ends Tx of PORT COM.In the present embodiment, this initial communication command signal is for example to be the command signal of a RS232, and its form is: handle+identification code+command code.Wherein, handle has an ASCII character at least.Below we provide the example of a more complete initial communication command signal form at this:
stx+eot+ID+Command+etx
Wherein ID is an identification code.Command is a command code, is exactly the confidential command context of giving the second video wall main frame of host computer.And stx, eot and etx are all ASCII character, and the meaning division of its representative is as follows:
The instruction title |
ASCII character |
Function |
stx |
02H |
Character string is initial |
eot |
04H |
Transmission ending |
etx |
03H |
Character string stops |
Table (1)
This order meeting is received by the receiving end Rx of the first video wall main frame 23 by its PORT COM earlier.In the above-mentioned command format, stx, eot and etx etc. only are an example, do not limit especially when reality is implemented.
Please continue to consult Fig. 2 and shown in Figure 3, after the first video wall main frame 23 receives this initial communication command signal, just shown in step S312, the first video wall main frame 23 will change the handle in the initial communication command signal, and adds count value to produce correction communication command signal.A form of revising the communication command signal below just is provided:
ack+enq+ID+Command+Count+etx
Wherein the meaning represented separately of ack and enq is as described below:
The instruction title |
ASCII character |
Function |
Ack |
06H |
Confirm |
Enq |
05H |
Inquiry |
Table (2)
From above correction communication command signal as can be seen, the first video wall main frame 23 will begin handle stx and eot in the communication command signal change into ack and enq, and add count value Count.In the above-mentioned command format, ack and enq etc. only is stx and the eot example through conversion, can convert other handle to when reality is implemented, and the present invention does not limit conversion regime especially.
Please continue to consult Fig. 2 and shown in Figure 3, after the first video wall main frame 23 will be revised the communication command signal and be sent to the second video wall main frame 25, then can be shown in step S313, the second video wall main frame 25 adds that with count value Count an increment (for example being 1) is again to the second video wall main frame 25.By that analogy, when each video wall main frame will be revised the communication command signal again and send next stage video wall main frame to, all can add an increment at count value Count.Relatively, give host computer 21 when for example second video wall main frame 25 will send instruction, this host computer 21 just can know it is which video wall main frame is sent out as long as check the content of count value Count, so before video wall is not also set identification code, still can both-way communication.In addition, telepilot or line control machine also can use the form of revising the communication command signal to control one of them.When using the form of revising the communication command signal, telepilot or line control machine control one of them video wall main frame for example during the second video wall main frame 25, the second video wall main frame 25 is as long as check the content of count value Count, just can know to oneself, and remaining video wall main frame just can not go to comprehend this and revise the communication command signal, therefore again do not need when controlling one of them video wall main frame the power-off of the video wall main frame that the user need be all with the back and increase difficulty in the use.
Though above embodiment is the form that proposes a kind of communication command signal, do not represent that the communication command signal form of wanting required for the present invention leaves no choice but so write, not necessarily at the communication architecture of RS232 yet.Have the knack of this skill person and send initial communication command to behind first main frame as long as set the host computer computing machine, first main frame can make an amendment the content of initial communication command and add count value, to produce the communication command of revising, just meet the spirit of technical solution of the present invention.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.