CN103108136B - A kind of video cross method and master control set - Google Patents
A kind of video cross method and master control set Download PDFInfo
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- CN103108136B CN103108136B CN201310069904.5A CN201310069904A CN103108136B CN 103108136 B CN103108136 B CN 103108136B CN 201310069904 A CN201310069904 A CN 201310069904A CN 103108136 B CN103108136 B CN 103108136B
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Abstract
The embodiment of the invention discloses a kind of video cross method and master control set, video can be increased and decreased as required and intersect way, make the video crossover scale can be with infinite expanding.The method comprise the steps that the video intersection request receiving No. ID that carries purpose equipment；Obtain No. ID of purpose equipment；Send video according to No. ID and intersect instruction to purpose equipment；Wherein purpose equipment includes UWB transmitter module and UWB receiver module.User can increase or reduce UWB transmitter module and UWB receiver module quantity as required, such that it is able to increase and decrease video intersects way as required, makes the video crossover scale can be with infinite expanding.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of video cross method and master control set.
Background technology
The video cross method that major part video matrix uses at present probably has two kinds, and one is that employing is special
Video cross chips realizes, and one is to use high speed SERDES of extensive logic chip (FPGA) in fact
Existing.
Using dedicated video cross chips to realize the method that video intersects, the way that its video intersection realizes exists
In the video cross chips scale used, in video cross system, also need to specialized designs one simultaneously and regard
Frequently transposition circuit plate, controls, by MCU, the sensing that video intersects.This video intersection implementation mesh
Before the difficulty that runs into be that video intersects way limited, be currently known on market commercial cross chips maximum
Scale is 72*72, if needing the video being a 200*200 to intersect, which is difficult to realize.Right
In using FPAG to realize the mode that video intersects, its video realized intersects and depends on every piece of logic chip
The SERDES passage having, although the video that can be realized such as 200*200 by multi-disc FPAG is intersected,
But it is extremely complex that it realizes algorithm, the height that cost is also abnormal simultaneously；The most only some small-scale friendships
Fork can use FPGA to realize.
Above two video intersection implementation method also has a common shortcoming simultaneously, it is simply that its video intersects
Way is fixing, and the video such as 20*20 intersects, if its system 21*21 to be extended to is not all right,
It it is exactly non expansivity.
Summary of the invention
Embodiments provide a kind of video cross method and master control set, can increase as required
Subtract video and intersect way, make the video crossover scale can be with infinite expanding.
A kind of video cross method that the embodiment of the present invention provides specifically includes:
Receive the video intersection request of No. ID that carries purpose equipment；
Obtain No. ID of purpose equipment；
Obtain the scale of purpose equipment, and increase and decrease purpose equipment according to scale；
Send video according to No. ID and intersect instruction to purpose equipment；
Purpose equipment includes UWB transmitter module and UWB receiver module；
UWB transmitter module and UWB receiver module carry out video intersection by UWB wireless mode.
Optionally,
Also include before receiving the video intersection request step of No. ID that carries purpose equipment:
UWB transmitter module is added up；
UWB receiver module is added up；
Determine video crossover scale；
No. ID is distributed to each UWM transmitter module and UWB receiver module.
Optionally,
Also include after obtaining the ID step of purpose equipment:
Judge that current video receives passage the most idle；
The most then send the video reception of ID carrying UWM transmitter module to instruct purpose UWM and connect
Receive module；
If it is not, then remove current operating state, terminate work request last time, by new video reception instruction
It is transferred to purpose UWM receiver module.
Optionally,
Also include after obtaining the ID step of purpose equipment:
Judge that current video sendaisle is the most idle；
The most then send the video of ID carrying UWM receiver module to send instructions to purpose UWM and send out
Penetrate module；
If it is not, then remove current operating state, terminate work request last time, new video is sent instruction
It is transferred to purpose UWM transmitter module.
Optionally,
The method also includes:
By communication request between interrupt requests mode and UWB transmitter module and UWB receiver module.
Optionally,
The method also includes:
Interrupt number is distributed to each UWM transmitter module and described UWB receiver module；
Communicate with UWM transmitter module and UWB receiver module according to interrupt number.
The embodiment of the present invention additionally provides a kind of master control set, specifically includes:
Receive unit, for receiving the video intersection request of No. ID that carries purpose equipment；
Acquiring unit, is used for obtaining No. ID of purpose equipment；
First transmitting element, intersects instruction to purpose equipment for sending video according to No. ID.
Optionally,
First statistic unit, for adding up UWB transmitter module；
Second statistic unit, for adding up UWB receiver module；
Determine unit, be used for determining video crossover scale；
Allocation unit, for distributing No. ID to each UWM transmitter module and UWB receiver module.
Optionally,
First judging unit, is used for judging that current video receives passage the most idle；
Second transmitting element, when current video receives the passage free time, sends and carries UWM transmitting mould
The video reception of the ID of block instructs purpose UWM receiver module.
Optionally,
Second judging unit, is used for judging that current video sendaisle is the most idle；
3rd transmitting element, sends when the current video sendaisle free time and carries UWM receiver module
The video of ID send instructions to purpose UWM transmitter module.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
Intersection way can not be extended by prior art, and a kind of video that the embodiment of the present invention provides is handed over
Fork method includes: receive the video intersection request of No. ID that carries purpose equipment；Obtain the ID of purpose equipment
Number；Send video according to No. ID and intersect instruction to purpose equipment；Wherein purpose equipment includes that UWB launches
Module and UWB receiver module.User can increase as required or reduce UWB transmitter module and
UWB receiver module quantity, thus realize can increasing and decreasing video intersection way as required, make video intersect
Scale can be with infinite expanding.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of video cross method first embodiment in the embodiment of the present invention；
Fig. 2 is the flow chart of a kind of video cross method the second embodiment in the embodiment of the present invention；
Fig. 3 is the flow chart of a kind of video cross method the 3rd embodiment in the embodiment of the present invention；
Fig. 4 is the structural representation of a kind of master control set first embodiment in the embodiment of the present invention；
Fig. 5 is the structural representation of a kind of master control set the second embodiment in the embodiment of the present invention.
Detailed description of the invention
Embodiments provide a kind of video cross method and master control set, can increase as required
Subtract video and intersect way, make the video crossover scale can be with infinite expanding.
Referring to Fig. 1, a kind of video cross method that the embodiment of the present invention provides specifically includes:
101, the video intersection request of No. ID that carries purpose equipment is received；
In the present embodiment, purpose equipment includes UWB transmitter module and UWB receiver module, UWB
Transmitter module can gather video signal, and is compressed video signal, and compress mode can use
H.264 mode, then video signal is sent, UWB receiver module can receive what UWB sent
Video data compression bag, and it is decompressed, export on any display.User is sent by program and regards
Frequency intersects asks, and can include which road video data is sent to the output of a certain road in the intersection request of this video,
Such as the 3rd road video data transmitting is delivered to the output of G road, video input can be passed through in actual applications
Communicating between plate and video frequency output plate, UWB transmitter module can be integrated on video input plate,
UWB receiver module can be integrated on video frequency output plate.Intersect at video and ask to include that UWB launches
The ID of ID and the UWB receiver module of module.
102, No. ID of purpose equipment is obtained；
In the present embodiment, master control set can receive the intersection request of above-mentioned video, therefrom obtains UWB and sends out
Penetrate the ID of ID and the UWB receiver module of module.
103, obtain the scale of purpose equipment, and increase and decrease purpose equipment according to scale；
In the present embodiment, master control set can predefine purpose equipment scale, increases and decreases according to this scale
The quantity of purpose equipment.
It should be noted that purpose equipment can include UWB transmitter module and UWB receiver module.Separately
Outward, it will be understood by those skilled in the art that step 103 can be before step 101 or 102.
104, send video according to No. ID and intersect instruction to purpose equipment.
In the present embodiment, master control set can send video intersect instruction to UWB transmitter module or
UWB receiver module.
It should be noted that the present embodiment uses the master control core of master control set in UWB chip and master control set
Sheet ARM has built the hardware platform of a video signal Cross transfer, uses ucLinux system pair simultaneously
Intersection video traffic and related chip are controlled management, it is achieved video cross business and user control interface
Deng.
It should be noted that the intersection instruction of above-mentioned video may include that some UWB of order launches
The video that module sends video data to some UWB receiver module sends instruction, it is also possible to include to certain
One UWB receiver module transmission refers to from the video reception of some UWB transmitter module reception video data
Order.
It should be noted that the present embodiment is by ultra-wide band UWB(Urta-Wide Band) wireless
Technology carrys out transmission video signal, and the method realized by software is sent to video signal to receive accordingly
End, thus realize the intersection of video.UWB technology is a kind of new wireless transmission mechanism, transfer rate,
The aspect such as power consumption and cost has a clear superiority in, and no matter realizes or in terms of systematic function in technology, UWB
This new Radio Transmission Technology all has the feature being different from traditional wireless communication technology, mainly shows as
The most what time:
The band bandwidth of UWB distribution is 7.5Ghz, and power spectral density is 41.3dBm/MHz, electromagnetism
Radiate the least, can be prevented effectively from other system interference；UWB also has high transfer rate,
The transfer rate height 1Gbps that commercial chip realizes at present, analysis shows, UWB system per unit area
Accessible message capacity is more than 10～1000 times of the system such as WLAN, bluetooth；UWB system
System launch and receive be ultrashort burst pulse, launch power low, it is not necessary to use sinusoidal carrier and directly carry out
Modulation, therefore can significantly lower system complexity, less transceiver volume and power consumption, at cost and
Power consumption aspect advantage is clearly.
In the present embodiment, master control set carries the video intersection request of No. ID of purpose equipment by reception,
Thus obtain the ID of purpose equipment, and retransmit video intersection and instruct to purpose equipment, wherein purpose equipment bag
Include UWB transmitter module or UWB receiver module.User can increase as required or reduce UWB
Transmitter module and UWB receiver module quantity, such that it is able to increase and decrease video intersection way as required, make to regard
Frequently crossover scale can be with infinite expanding.
Above the first embodiment of a kind of video cross method that the embodiment of the present invention provides is retouched
State, below the second embodiment of a kind of video cross method that the embodiment of the present invention provides be described:
Referring to Fig. 2, the second embodiment of a kind of video cross method that the embodiment of the present invention provides specifically is wrapped
Include:
201, UWM transmitter module in video input plate is added up；
202, UWM receiver module in video frequency output plate is added up；
The effect of step 201 and step 203 in the present embodiment is in order to step 203 is prepared, master control
The quantity of video input plate and video frequency output plate can be added up by device, it should be noted that each
Block video input plate can be with 4 pieces of UWB transmitter modules, and each block of video frequency output plate can be with four pieces
UWB receiver module.
It should be noted that step 201 and step 202 order in no particular order, can be first to video input
In plate, UWM transmitter module is added up, it is also possible to first enter UWM receiver module in video frequency output plate
Row statistics, is not especially limited at this.
It should be noted that the major function of video input plate is the decoding video signal entered.
Decoder module can be decoded according to the video format (RGB, VIDEO, HDMI, SDI etc.) entered,
The unified signal format being converted into YCbCr442.The video signal of consolidation form is inputted and is compressed,
Video signal after compression is launched by UWB transmitting chip.Video interface can be according to different
Video signal format is changed, and Video decoding module typically uses decoding chip to realize, after decoding
Chip with consolidation form input to compression module.Video compressing module uses H.264 mode to be compressed,
CPLD module is mainly the form becoming UWB transmitting chip to need data Format adjusting, after adjusting
Wireless transmit chip is sent data.
The major function of video frequency output plate is receiving from video input plate by UWB receiver module
H.164, data are decompressed, by video format modular converter video by intersection video data simultaneously
Signal exports, the interleaving function of completion system.
UWB receiver module is mainly made up of wireless reception of signals, receives after compressing from tablet
Video data；Four road video compression datas pass through CPLD module, carry out data Format adjusting；Video solution
Die block major function is to be decompressed by the video data of H.264 form, reverts to normal video counts
According to form；Video format modular converter mainly carries out color gamut conversion video data, is converted into satisfied regarding
The call format of frequency output.
203, video crossover scale is determined；
In the present embodiment, complete step 201 and step 202 just can obtain UWB transmitter module and
The quantity of UWB Video Output Modules, prepares for step 204.
204, No. ID is distributed to each UWM transmitter module and UWM receiver module；
In the present embodiment, master control set receives mould can to each UWM transmitter module and UWM
Block distributes No. ID, and the purpose distributing No. ID is to distinguish each different module.
205, the video intersection request of No. ID that carries purpose equipment is received；
206, ID and purpose UWM of purpose UWM transmitter module in reception video intersection request are obtained
The ID of receiver module；
In the present embodiment, step 205 and step 206 and step 101 and step 102 in first embodiment
Identical, therefore not to repeat here.
207, judge that current video receives passage the most idle；
If 208 current videos receive passage and are in idle condition, then carry out step 209；
If current video receives passage and is in busy state, then return step 205；
209, send and carry the video reception of UWM transmitter module ID and instruct purpose UWM and receive mould
Block.
In the present embodiment, before master control set sends video reception instruction to purpose UWB transmitter module,
Can first judge that current video receives passage the most idle, if current video receives passage and is in idle condition,
Master control set can directly perform step 209, directly transmits video reception and instructs purpose UWB reception mould
Block, the instruction of this video reception can be, makes purpose UWB receiver module receive the UWB carried in instruction
The video data of transmitter module.If current video receives passage and is in busy state, then master control set can
To remove current operating state, terminate work request last time, and return step 205, receive new video and hand over
Fork request, is transferred to purpose UWM receiver module by new video reception instruction.
It should be noted that master control set and other video input plate and video frequency output plate have employed bus and
The mode interrupting returning is controlled, and the interruption processing module on master control set provides an interrupt address
Decoding function, distributes an interrupt number to each input or output card so that master control set can interpolate that
The interrupt requests specifically come on any block veneer.The main control chip of master control set is defeated to video by iic bus
Enter plate, video frequency output plate is controlled because being IIC main equipment in master control, other board be IIC from
Equipment, so each input and output veneer is all without initiating the ability of communication.In order to solve this problem, it is
System is assigned with the interrupt number of to each input and output veneer, uses the mode of interrupt requests to communicate
Request.Each input/output board time if desired master control set does special handling, then sends one with this
The interrupt signal of body card ID, after the interruption processing module on master control set is decoded, master control fills
Put status register inquiry that the board sending interruption is entered, process corresponding problem, after having processed,
Remove and interrupt.
In the present embodiment, master control set first to UWB transmitter module in video frequency output plate and video input plate and
UWB receiver module is added up, and obtains video crossover scale, then be each UWB transmitter module and
UWB receiver module distributes No. ID；Master control set is carried the video of No. ID of purpose equipment and hands over by reception
Fork request, thus obtain mesh UWB receiver module ID and purpose UWB transmitter module ID；Then, main
Control device can first judge that current video receives whether passage is in idle condition, if current video passage
It is in idle condition, then can send video reception and instruct to purpose UWB receiver module, if current video
Receive passage and be in busy state, then master control set can remove current operating state, terminates work last time
Ask, new video reception instruction is transferred to purpose UWM receiver module.User can be according to need
Increase or reduce UWB transmitter module and UWB receiver module quantity, can increase and decrease as required and regard
Frequency intersects way, makes the video crossover scale can be with infinite expanding.And, video input plate and output board can
To separate, break away from restriction spatially, it addition, video input plate and video can be saved in systems
Output board；Realize simple, without the restriction of High speed rear panel wiring.
Above the second embodiment of a kind of video cross method that the embodiment of the present invention provides is retouched
State, below the 3rd embodiment of a kind of video cross method that the embodiment of the present invention provides be described:
Referring to Fig. 3, the 3rd embodiment of a kind of video cross method that the embodiment of the present invention provides specifically is wrapped
Include:
301, UWM transmitter module in video input plate is added up；
302, UWM receiver module in video frequency output plate is added up；
303, video crossover scale is determined；
304, No. ID is distributed to each UWM transmitter module and UWM receiver module；
305, the video intersection request of No. ID that carries purpose equipment is received；
306, ID and purpose UWM of purpose UWM transmitter module in reception video intersection request are obtained
The ID of receiver module；
In the present embodiment, step 301 is to step 201 in step 306 and the second embodiment to step 206
Identical, therefore not to repeat here.
307, judge that current video sendaisle is the most idle；
If 308 current video sendaisles are in idle condition, then carry out step 309；
If current video sendaisle is in busy state, then return step 305；
309, send and carry the video reception of UWM receiver module ID and instruct purpose UWM and launch mould
Block.
In the present embodiment, master control set sends before video receives and sends order to purpose UWB transmitter module,
Can first judge that current video sendaisle is the most idle, if current video sendaisle is in idle condition,
Master control set can directly perform step 309, directly transmits video and sends instructions to purpose UWB transmitting mould
Block, this video sends instruction and can be, makes purpose UWB transmitter module send video data and takes in instruction
The UWB receiver module of band.If current video sendaisle is in busy state, then master control set is permissible
Remove current operating state, terminate work request last time, and return step 305, receive new video and intersect
Request, sends instruction by new video and is transferred to purpose UWM transmitter module.
In the present embodiment, master control set first to UWB transmitter module in video frequency output plate and video input plate and
UWB receiver module is added up, and obtains video crossover scale, then be each UWB transmitter module and
UWB receiver module distributes No. ID；Master control set is carried the video of No. ID of purpose equipment and hands over by reception
Fork request, thus obtain mesh UWB receiver module ID and purpose UWB transmitter module ID；Then, main
Control device can first judge whether current video sendaisle is in idle condition, if current video sends
Passage is in idle condition, then can send video and send a command to purpose UWB transmitter module, if currently
Video sendaisle is in busy state, then master control set can remove current operating state, terminate on
Task is asked, and new video is sent instruction and is transferred to purpose UWM receiver module.User can root
Increase according to needs or reduce UWB transmitter module and UWB receiver module quantity, can increase as required
Subtract video and intersect way, make the video crossover scale can be with infinite expanding.And, video input plate and output
Plate can separate, and has broken away from restriction spatially, it addition, can save in systems video input plate and
Video frequency output plate；Realize simple, without the restriction of high speed back wiring.
Above the example of executing of a kind of video cross method that the embodiment of the present invention provides is described, below
The first embodiment of a kind of master control set that the embodiment of the present invention provides is described:
Referring to Fig. 4, the embodiment of a kind of master control set that the embodiment of the present invention provides specifically includes:
Receive unit 401, for receiving the video intersection request of No. ID that carries purpose equipment；
Acquiring unit 402, is used for obtaining No. ID of purpose equipment；
The embodiment of a kind of master control set that the embodiment of the present invention provides farther includes:
First statistic unit 404, for adding up UWB transmitter module；
Second statistic unit 405, for adding up UWB receiver module；
Determine unit 406, be used for determining video crossover scale；
Allocation unit 407, for distributing No. ID to each UWM transmitter module and UWB receiver module.
The embodiment of a kind of master control set that the embodiment of the present invention provides farther includes:
First judging unit 408, is used for judging that current video receives passage the most idle；
First transmitting element 403, when current video receives the passage free time, sends and carries UWM transmitting
The video reception of the ID of module instructs purpose UWM receiver module.
Below with the example in an actual application, to a kind of master control set that the embodiment of the present invention provides
Correspondence between first embodiment unit is described:
UWM transmitter module in video input plate can be added up by the first statistic unit 404, and second
UWM receiver module in video frequency output plate can be added up by statistic unit 405；
It should be noted that each block of video input plate can be with 4 pieces of UWB transmitter modules, each piece
Video frequency output plate can be with four pieces of UWB receiver modules.
It should be noted that can first UWM in video input plate be launched by the first statistic unit 404
Module is added up, it is also possible to first by the second statistic unit 405, UWM in video frequency output plate is received mould
Block is added up, and is not especially limited at this.
After the quantity of statistics UWB transmitter module and UWB Video Output Modules, determine that unit 406 may determine that
Video crossover scale；Then, allocation unit 407 can give each UWM transmitter module and UWM
Receiver module distributes No. ID；
In the present embodiment, allocation unit 407 connects to each UWM transmitter module and UWM
Receiving module assignment ID, the purpose distributing No. ID is to distinguish each different module.
Receive unit 401 and can receive video intersection request；
In the present embodiment, user sends video intersection request by program, can in the intersection request of this video
To include which road video data is sent to the output of a certain road, such as, the 3rd road video data transmitting is delivered to G
Road exports, in actual applications can be by communicating between video input plate and video frequency output plate, UWB
Transmitter module can be integrated on video input plate, and UWB receiver module can be integrated in video frequency output plate
On.The ID of ID and the UWB receiver module of UWB transmitter module is included in video intersection request.
Then, purpose UWM transmitter module during acquiring unit 402 can obtain reception video intersection request
ID and the ID of purpose UWM receiver module；
In the present embodiment, receive unit 401 and can receive the intersection request of above-mentioned video, therefrom by obtaining
Unit 402 obtains the ID of ID and the UWB receiver module of UWB transmitter module.
It is the most idle that first judging unit 408 may determine that current video receives passage；If current video connects
Receive passage and be in idle condition, then directly being sent video reception by the first transmitting element 403 instructs purpose
UWB receiver module；If current video receives passage and is in busy state, then remove current operating state,
Terminate work request last time, receive new video intersection request, new video reception instruction is transferred to mesh
UWM receiver module.
In the present embodiment, the first transmitting element 403 refers to purpose UWB transmitter module transmission video reception
Before order, it is the most idle, if working as forward sight that the first judging unit 408 may determine that current video receives passage
Frequency receives passage and is in idle condition, then directly sent video reception by the first transmitting element 403 and instruct
Purpose UWB receiver module；If current video receives passage and is in busy state, then remove work at present
State, terminates work request last time, receives new video intersection request, new video reception instruction is passed
It is passed to purpose UWM receiver module.
It should be noted that master control set and other video input plate and video frequency output plate have employed bus and
The mode interrupting returning is controlled, and the interruption processing module on master control set provides an interrupt address
Decoding function, distributes an interrupt number to each input or output card so that master control set can interpolate that
The interrupt requests specifically come on any block veneer.The main control chip of master control set is defeated to video by iic bus
Enter plate, video frequency output plate is controlled because being IIC main equipment in master control, other board be IIC from
Equipment, so each input and output veneer is all without initiating the ability of communication.In order to solve this problem, it is
System is assigned with the interrupt number of to each input and output veneer, uses the mode of interrupt requests to communicate
Request.Each input/output board time if desired master control set does special handling, then sends one with this
The interrupt signal of body card ID, after the interruption processing module on master control set is decoded, master control fills
Put status register inquiry that the board sending interruption is entered, process corresponding problem, after having processed,
Remove and interrupt.
In the present embodiment, the first statistic unit 404 and the second statistic unit 405 to video frequency output plate and regard
Frequently in tablet, UWB transmitter module and UWB receiver module are added up, by determining that unit 406 obtains
Video crossover scale, then be each UWB transmitter module and UWB receiver module by allocation unit 407
Distribute No. ID；Receive the video intersection request that unit 401 carries No. ID of purpose equipment by reception,
Thus acquiring unit 402 obtains purpose UWB receiver module ID and purpose UWB transmitter module ID；So
After, the first judging unit 408 can first judge whether current video sendaisle is in idle condition, as
Really current video sendaisle is in idle condition, then the first transmitting element 403 can send video transmission
Instruction is to purpose UWB transmitter module, if current video sendaisle is in busy state, then master control dress
Put and can remove current operating state, terminate work request last time, new video is sent instruction and is transferred to
Purpose UWM receiver module.User can increase or reduce UWB transmitter module and UWB as required
Receiver module quantity, can increase and decrease video as required and intersect way, make the video crossover scale can be unlimited
Extension.And, video input plate and output board can separate, and broken away from restriction spatially, it addition,
Video input plate and video frequency output plate can be saved in systems；Realize simple, without the wiring of high speed back
Limit.
Above the first embodiment of a kind of master control set that the embodiment of the present invention provides is described, under
In the face of the second embodiment of a kind of master control set of embodiment of the present invention offer is described:
Referring to Fig. 5, the embodiment of a kind of master control set that the embodiment of the present invention provides specifically includes:
Reception unit, 501, for receiving the video intersection request of No. ID that carries purpose equipment；
Acquiring unit 502, is used for obtaining No. ID of purpose equipment；
The embodiment of a kind of master control set that the embodiment of the present invention provides farther includes:
First statistic unit 504, for adding up UWB transmitter module；
Second statistic unit 505, for adding up UWB receiver module；
Determine unit 506, be used for determining video crossover scale；
Allocation unit 507, for distributing No. ID to each UWM transmitter module and UWB receiver module.
The embodiment of a kind of master control set that the embodiment of the present invention provides farther includes:
Second judging unit 508, is used for judging that current video sendaisle is the most idle；
Second transmitting element 503, sends when the current video sendaisle free time and carries UWM reception mould
The video of the ID of block sends instructions to purpose UWM transmitter module.
Below with the example in an actual application, to a kind of master control set that the embodiment of the present invention provides
Correspondence between first embodiment unit is described:
UWM transmitter module in video input plate can be added up by the first statistic unit 504, and second
UWM receiver module in video frequency output plate can be added up by statistic unit 505；
It should be noted that each block of video input plate can be with 4 pieces of UWB transmitter modules, each piece
Video frequency output plate can be with four pieces of UWB receiver modules.
It should be noted that can first UWM in video input plate be launched by the first statistic unit 504
Module is added up, it is also possible to first by the second statistic unit 505, UWM in video frequency output plate is received mould
Block is added up, and is not especially limited at this.
After the quantity of statistics UWB transmitter module and UWB Video Output Modules, determine that unit 506 is permissible
Determine video crossover scale；Then, allocation unit 507 can give each UWM transmitter module and UWM
Receiver module distributes No. ID；
In the present embodiment, allocation unit 507 connects to each UWM transmitter module and UWM
Receiving module assignment ID, the purpose distributing No. ID is to distinguish each different module.
Receive unit 501 and can receive video intersection request；
In the present embodiment, user sends video intersection request by program, can in the intersection request of this video
To include which road video data is sent to the output of a certain road, such as, the 3rd road video data transmitting is delivered to G
Road exports, in actual applications can be by communicating between video input plate and video frequency output plate, UWB
Transmitter module can be integrated on video input plate, and UWB receiver module can be integrated in video frequency output plate
On.The ID of ID and the UWB receiver module of UWB transmitter module is included in video intersection request.
Then, purpose UWM transmitter module during acquiring unit 502 can obtain reception video intersection request
ID and the ID of purpose UWM receiver module；
In the present embodiment, receive unit 501 and can receive the intersection request of above-mentioned video, therefrom by obtaining
Unit 502 obtains the ID of ID and the UWB receiver module of UWB transmitter module.
It is the most idle that second judging unit 508 may determine that current video receives passage；If current video connects
Receive passage and be in idle condition, then directly being sent video reception by the second transmitting element 503 instructs purpose
UWB receiver module；If current video receives passage and is in busy state, then remove current operating state,
Terminate work request last time, receive new video intersection request, new video reception instruction is transferred to mesh
UWM receiver module.
In the present embodiment, the second transmitting element 503 refers to purpose UWB transmitter module transmission video reception
Before order, it is the most idle, if working as forward sight that the second judging unit 508 may determine that current video receives passage
Frequency receives passage and is in idle condition, then directly sent video reception by the second transmitting element 503 and instruct
Purpose UWB receiver module；If current video receives passage and is in busy state, then remove work at present
State, terminates work request last time, receives new video intersection request, new video reception instruction is passed
It is passed to purpose UWM receiver module.
It should be noted that master control set and other input/output board have employed bus and interrupt the side returned
Formula is controlled, and concrete communication mode is described below shown.Interruption processing module on master control set provides
One interrupt address decoding function, distributes interrupt number to each input or output card so that main
Control device can interpolate that the interrupt requests on specifically that block veneer.The main control chip of master control set passes through
Input, output card are controlled by iic bus, because in master control being IIC main equipment, other board is
IIC is from equipment, so each input and output veneer is all without initiating the ability of communication.In order to solve this problem,
System gives the interrupt number that each input and output veneer is assigned with, uses the mode of interrupt requests to lead to
Letter request.Each input/output board is time if desired master control set does special handling, then send one with
The interrupt signal of board ID own, after the interruption processing module on master control set is decoded, master control
Device the board sending interruption is entered status register inquiry, process corresponding problem, after having processed,
Remove and interrupt.
In the present embodiment, the first statistic unit 504 and the second statistic unit 505 are to video frequency output plate and video
In tablet, UWB transmitter module and UWB receiver module are added up, by determining that unit 506 is regarded
Frequently crossover scale, then divided for each UWB transmitter module and UWB receiver module by allocation unit 507
Join No. ID；Receive the video intersection request that unit 501 carries No. ID of purpose equipment by reception, from
And acquiring unit 502 obtains purpose UWB receiver module ID and purpose UWB transmitter module ID；Then,
Second judging unit 508 can first judge whether current video sendaisle is in idle condition, if worked as
Forward sight frequency sendaisle is in idle condition, then the first transmitting element 503 can send video and send instruction
To purpose UWB transmitter module, if current video sendaisle is in busy state, then master control set can
To remove current operating state, terminate work request last time, new video is sent instruction and is transferred to purpose
UWM receiver module.User can increase or reduce UWB transmitter module as required and UWB connects
Receive module number, video intersection way can be increased and decreased as required, make video crossover scale infinitely to expand
Exhibition.And, video input plate and output board can separate, and broken away from restriction spatially, it addition,
System can be saved video input plate and video frequency output plate；Realize simple, without the limit of high speed back wiring
System.
Those skilled in the art is it can be understood that arrive, and for convenience and simplicity of description, above-mentioned retouches
The specific works process of the system stated, device and unit, is referred to the correspondence in preceding method embodiment
Process, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, device and
Method, can realize by another way.Such as, device embodiment described above is only shown
Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing
There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another
System, or some features can ignore, or do not perform.Another point, shown or discussed each other
Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit
Or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, makees
The parts shown for unit can be or may not be physical location, i.e. may be located at a place,
Or can also be distributed on multiple NE.Can select according to the actual needs part therein or
The whole unit of person realizes the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit,
Can also be that unit is individually physically present, it is also possible to two or more unit are integrated in a list
In unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ software function list
The form of unit realizes.
If described integrated unit realizes and as independent production marketing using the form of SFU software functional unit
Or when using, can be stored in a computer read/write memory medium.Based on such understanding, this
The part that the most in other words prior art contributed of technical scheme of invention or this technical scheme
Completely or partially can embody with the form of software product, this computer software product is stored in one
In storage medium, including some instructions with so that computer equipment (can be personal computer,
Server, or the network equipment etc.) perform completely or partially walking of method described in each embodiment of the present invention
Suddenly.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. the various media that can store program code.
The above, above example only in order to technical scheme to be described, is not intended to limit；
Although being described in detail the present invention with reference to previous embodiment, those of ordinary skill in the art should
Work as understanding: the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence depart from various embodiments of the present invention technical scheme spirit and scope.
Claims (8)
1. a video cross method, it is characterised in that including:
Receive the video intersection request of No. ID that carries purpose equipment；
Obtain No. ID of described purpose equipment；
Obtain the scale of purpose equipment, and increase and decrease purpose equipment according to described scale；
Send video according to described No. ID and intersect instruction to purpose equipment；
Described purpose equipment includes UWB transmitter module and UWB receiver module；
Described UWB transmitter module and described UWB receiver module carry out video by UWB wireless mode
Intersect；
Also include after the ID step of described acquisition described purpose equipment:
Judge that current video receives passage the most idle；
The video reception the most then sending the ID carrying described UWM transmitter module instructs purpose UWM
Receiver module；
If it is not, then remove current operating state, terminate work request last time, by new video reception instruction
It is transferred to purpose UWM receiver module.
Video cross method the most according to claim 1, it is characterised in that
Described reception is carried the video of No. ID of purpose equipment and is intersected before request step and also include:
Described UWB transmitter module is added up；
Described UWB receiver module is added up；
Determine video crossover scale；
No. ID is distributed to each described UWM transmitter module and described UWB receiver module.
Video cross method the most according to claim 1, it is characterised in that
Also include after the ID step of described acquisition described purpose equipment:
Judge that current video sendaisle is the most idle；
The video the most then sending the ID carrying described UWM receiver module sends instructions to purpose UWM
Transmitter module；
If it is not, then remove current operating state, terminate work request last time, new video is sent instruction
It is transferred to purpose UWM transmitter module.
Video cross method the most according to any one of claim 1 to 3, it is characterised in that institute
Method of stating also includes:
By communicating between interrupt requests mode with described UWB transmitter module and UWB receiver module.
Video cross method the most according to claim 4, it is characterised in that described method also includes:
Interrupt number is distributed to each described UWM transmitter module and described UWB receiver module；
Communicate with described UWM transmitter module and described UWB receiver module according to described interrupt number.
6. a master control set, it is characterised in that including:
Receive unit, for receiving the video intersection request of No. ID that carries purpose equipment；
Acquiring unit, is used for obtaining No. ID of described purpose equipment；
First transmitting element, intersects instruction to purpose equipment for sending video according to described No. ID；
Described master control set also includes:
First judging unit, is used for judging that current video receives passage the most idle；
Second transmitting element, when current video receives the passage free time, sends and carries UWM transmitting mould
The video reception of the ID of block instructs purpose UWM receiver module.
Master control set the most according to claim 6, it is characterised in that described master control set also includes:
First statistic unit, for adding up UWB transmitter module；
Second statistic unit, for adding up UWB receiver module；
Determine unit, be used for determining video crossover scale；
Allocation unit, for distributing to each described UWM transmitter module and described UWB receiver module
No. ID.
Master control set the most according to claim 6, it is characterised in that described master control set also includes:
Second judging unit, is used for judging that current video sendaisle is the most idle；
3rd transmitting element, sends when the current video sendaisle free time and carries UWM receiver module
The video of ID send instructions to purpose UWM transmitter module.
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|---|---|---|---|
| CN201310069904.5A CN103108136B (en) | 2013-03-05 | 2013-03-05 | A kind of video cross method and master control set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310069904.5A CN103108136B (en) | 2013-03-05 | 2013-03-05 | A kind of video cross method and master control set |
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| CN103108136A CN103108136A (en) | 2013-05-15 |
| CN103108136B true CN103108136B (en) | 2016-09-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI634790B (en) * | 2017-05-17 | 2018-09-01 | 龍迅半導體（合肥）股份有限公司 | A chip and a digital video signal transmission system |
| TWI632813B (en) * | 2017-06-16 | 2018-08-11 | 龍迅半導體（合肥）股份有限公司 | A matrix switcher |
| US10602170B2 (en) | 2017-07-24 | 2020-03-24 | Lontium Semiconductor Corporation | Signal extension method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127755A (en) * | 2006-08-15 | 2008-02-20 | 深圳洪迪实业有限公司 | Real time video image transmission method and system |
| CN101491002A (en) * | 2006-05-17 | 2009-07-22 | 国家Ict澳大利亚有限公司 | Send and receive streams of media packets |
| CN101959060A (en) * | 2010-10-26 | 2011-01-26 | 镇江科大船苑计算机网络工程有限公司 | Video passenger flow monitoring system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7260369B2 (en) * | 2005-08-03 | 2007-08-21 | Kamilo Feher | Location finder, tracker, communication and remote control system |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101491002A (en) * | 2006-05-17 | 2009-07-22 | 国家Ict澳大利亚有限公司 | Send and receive streams of media packets |
| CN101127755A (en) * | 2006-08-15 | 2008-02-20 | 深圳洪迪实业有限公司 | Real time video image transmission method and system |
| CN101959060A (en) * | 2010-10-26 | 2011-01-26 | 镇江科大船苑计算机网络工程有限公司 | Video passenger flow monitoring system and method |
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Address after: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee after: VTRON GROUP Co.,Ltd. Address before: 510663 Guangzhou province high tech Industrial Development Zone, Guangdong, Cai road, No. 6, No. Patentee before: VTRON TECHNOLOGIES Ltd. |
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Granted publication date: 20160928 |