CN103108136A - Video crossing method and master control device - Google Patents
Video crossing method and master control device Download PDFInfo
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- CN103108136A CN103108136A CN2013100699045A CN201310069904A CN103108136A CN 103108136 A CN103108136 A CN 103108136A CN 2013100699045 A CN2013100699045 A CN 2013100699045A CN 201310069904 A CN201310069904 A CN 201310069904A CN 103108136 A CN103108136 A CN 103108136A
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Abstract
The embodiment of the invention discloses a video crossing method and a master control device. The number of the paths of video cross can be increased or decreased as needed to enable the crossing scale of a video to be expanded limitlessly. The method disclosed by the embodiment of the invention comprises the following steps: receiving video cross request carrying an identity (ID) number of target equipment; acquiring the ID number of the target equipment; sending a video cross instruction to the target equipment according to the ID number, wherein the target equipment comprises ultra wide band (UWB) transmitting modules and UWB receiving modules. Users can increase or decrease the number of the UWB transmitting modules and the UWB receiving modules as needed, so that the number of the paths of video cross is increased or decreased as needed to enable the crossing scale of the video to be expanded limitlessly.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of video cross method and master control set.
Background technology
The video cross method that present most of video matrix adopts probably has two kinds, and a kind of is to adopt the dedicated video cross chips to realize, a kind of is to adopt the high speed SERDES of extensive logic chip (FPGA) to realize.
Adopt the dedicated video cross chips to realize the method that video intersects, its video intersects the way that realizes and is the video cross chips scale that adopts, also need simultaneously video transposition circuit plate of specialized designs in the video cross system, control by MCU the sensing that video intersects.The difficulty that this video intersection implementation runs at present is that video intersection way is limited, and it is 72*72 that commercial cross chips maximum-norm is arranged on present known market, intersects if need to do the video of a 200*200, and this mode is difficult to realize.For adopting FPAG to realize the mode that video intersects, the video of its realization intersects and depends on the SERDES passage that every logic chip has, although can realize intersecting as the video of 200*200 by multi-disc FPAG, its implementation algorithm is very complicated, also abnormal height of cost simultaneously; Only have at present some small-scale intersections can adopt FPGA to realize.
Above-mentioned two kinds of videos intersect implementation method and also have simultaneously a common shortcoming, are exactly that its video intersects way and fixes, and intersect as the video of 20*20, and its system if to be extended to 21*21 be not all right, is exactly non expansivity.
Summary of the invention
The embodiment of the present invention provides a kind of video cross method and master control set, can increase and decrease as required video and intersect way, makes the video crossover scale can infinite expanding.
A kind of video cross method that the embodiment of the present invention provides specifically comprises:
The video intersection request of No. ID of destination device is carried in reception;
Obtain destination device No. ID;
Obtain the scale of destination device, and according to scale increase and decrease destination device;
Send video according to No. ID and intersect instruction to destination device;
Destination device comprises UWB transmitter module and UWB receiver module;
UWB transmitter module and UWB receiver module carry out video by the UWB wireless mode and intersect.
Optionally,
The video intersection request step of No. ID that destination device is carried in reception also comprises before:
The UWB transmitter module is added up;
The UWB receiver module is added up;
Determine the video crossover scale;
Distribute for each UWM transmitter module and UWB receiver module No. ID.
Optionally,
The ID step of obtaining destination device also comprises afterwards:
Judge whether the current video receive path is idle;
If send the video reception instruction of the ID that carries the UWM transmitter module to purpose UWM receiver module;
If not, remove the work at present state, finish work request last time, new video reception command is arrived purpose UWM receiver module.
Optionally,
The ID step of obtaining destination device also comprises afterwards:
Judge whether the current video sendaisle is idle;
If the video that sends the ID that carries the UWM receiver module sends instructions to purpose UWM transmitter module;
If not, remove the work at present state, finish work request last time, new video is sent command to purpose UWM transmitter module.
Optionally,
The method also comprises:
By communication request between interrupt requests mode and UWB transmitter module and UWB receiver module.
Optionally,
The method also comprises:
Give each UWM transmitter module and described UWB receiver module assigned interrupt number;
Communicate according to interrupt number and UWM transmitter module and UWB receiver module.
The embodiment of the present invention also provides a kind of master control set, specifically comprises:
Receiving element is used for receiving the video intersection request of No. ID of carrying destination device;
Acquiring unit is used for obtaining No. ID of destination device;
The first transmitting element is used for sending video according to No. ID and intersects instruction to destination device.
Optionally,
The first statistic unit is used for the UWB transmitter module is added up;
The second statistic unit is used for the UWB receiver module is added up;
Determining unit is used for determining the video crossover scale;
Allocation units are used for distributing No. ID to each UWM transmitter module and UWB receiver module.
Optionally,
The first judging unit is used for judging whether the current video receive path is idle;
The second transmitting element is used for the current video receive path during free time, sends the video reception instruction of the ID that carries the UWM transmitter module to purpose UWM receiver module.
Optionally,
The second judging unit is used for judging whether the current video sendaisle is idle;
The 3rd transmitting element, the video that sends the ID that carries the UWM receiver module when idle for the current video sendaisle sends instructions to purpose UWM transmitter module.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
Prior art can not be expanded the intersection way, and a kind of video cross method that the embodiment of the present invention provides comprises: receive the video intersection request of No. ID of carrying destination device; Obtain destination device No. ID; Send video according to No. ID and intersect instruction to destination device; Wherein destination device comprises UWB transmitter module and UWB receiver module.The user can increase or reduce UWB transmitter module and UWB receiver module quantity as required, intersects way thereby realize increasing and decreasing as required video, makes the video crossover scale can infinite expanding.
Description of drawings
Fig. 1 is the flow chart of a kind of video cross method the 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 the 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.
Embodiment
The embodiment of the present invention provides a kind of video cross method and master control set, can increase and decrease as required video and intersect way, makes the video crossover scale can infinite expanding.
See also Fig. 1, a kind of video cross method that the embodiment of the present invention provides specifically comprises:
101, receive the video intersection request of No. ID of carrying destination device;
In the present embodiment, destination device comprises UWB transmitter module and UWB receiver module, the UWB transmitter module can gather vision signal, and vision signal is compressed, compress mode can adopt H.264 mode, then vision signal is sent, and the UWB receiver module can receive the video data compression bag that UWB sends, and to its decompress(ion), output on arbitrary display.The user sends the request of video intersection by program, this video intersects can comprise which road video data transmitting delivers to the output of a certain road in request, for example the 3 road video data transmitting is delivered to G road output, in actual applications can be by communicating between video input plate and video output board, the UWB transmitter module can be integrated on the video input plate, and the UWB receiver module can be integrated on the video output board.Intersect at video and ask to comprise the ID of UWB transmitter module and the ID of UWB receiver module.
102, obtain No. ID of destination device;
In the present embodiment, master control set can receive the request of above-mentioned video intersection, therefrom obtains the ID of UWB transmitter module and the ID of UWB receiver module.
103, obtain the scale of destination device, and according to scale increase and decrease destination device;
In the present embodiment, master control set can pre-determine the destination device scale, according to the quantity of this scale increase and decrease destination device.
Need to prove, destination device can comprise UWB transmitter module and UWB receiver module.In addition, 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 destination device.
In the present embodiment, master control set can send the instruction of video intersection to UWB transmitter module or UWB receiver module.
Need to prove, the present embodiment adopts the main control chip ARM of master control set in UWB chip and master control set to build the hardware platform of vision signal intersection transmission, adopt simultaneously the ucLinux system to carry out control and management to intersecting video traffic and related chip, realize video cross business and user control interface etc.
Need to prove, can comprise in the instruction of above-mentioned video intersection: order some UWB transmitter modules to send instruction to the video that some UWB receiver modules send video data, also can comprise the video reception instruction to some UWB receiver module transmissions from some UWB transmitter module receiving video datas.
Need to prove, be by super bandwidth UWB(Urta-Wide Band in the present embodiment) wireless technology comes transmission video signal, and by the method that software is realized, vision signal is sent to corresponding receiving terminal, thus realize the intersection of video.The UWB technology is a kind of new wireless transmission mechanism, have a clear superiority at aspects such as transmission rate, power consumption and costs, no matter realize still aspect systematic function in technology, this new Radio Transmission Technology of UWB all has the characteristics that are different from the traditional wireless communication technology, main manifestations be following some:
The band bandwidth that UWB distributes is 7.5Ghz, and power spectral density is 41.3dBm/MHz, and electromagnetic radiation is very little, can effectively avoid other system interference; UWB also has high transmission rate, and the transmission rate height 1Gbps of commercial chip realization at present the analysis showed that the accessible message capacity of UWB system's per unit area is more than 10～1000 times of system such as WLAN (wireless local area network), bluetooth; What the UWB system transmitted and received is ultrashort burst pulse, and transmitting power is low, need not to adopt sinusoidal carrier and directly modulates, and therefore can significantly lower system complexity, less transceiver volume and power consumption, and advantage is very obvious aspect cost and power consumption.
In the present embodiment, master control set carries the video intersection request of No. ID of destination device by reception, thereby obtains the ID of destination device, then sends the instruction of video intersection to destination device, and wherein destination device comprises UWB transmitter module or UWB receiver module.The user can increase or reduce UWB transmitter module and UWB receiver module quantity as required, intersects way thereby can increase and decrease as required video, makes the video crossover scale can infinite expanding.
The above is described the first embodiment of a kind of video cross method that the embodiment of the present invention provides, and the below is described the second embodiment of a kind of video cross method that the embodiment of the present invention provides:
See also Fig. 2, the second embodiment of a kind of video cross method that the embodiment of the present invention provides specifically comprises:
201, UWM transmitter module in the video input plate is added up;
202, UWM receiver module in the video output board is added up;
The effect of step 201 and step 203 in the present embodiment is to prepare for step 203, master control set can be added up the quantity of video input plate and video output board, need to prove, each piece video input plate can be with 4 UWB transmitter modules, and each piece video output board can be with four UWB receiver modules.
Need to prove, step 201 and step 202 be order in no particular order, can first add up UWM transmitter module in the video input plate, also can first add up UWM receiver module in the video output board, does not do concrete restriction at this.
Need to prove, the major function of video input plate is the decoding video signal that enters.Decoder module can be decoded according to the video format that enters (RGB, VIDEO, HDMI, SDI etc.), the unified signal format that converts YCbCr442 to.The input of the vision signal of consolidation form is compressed, the vision signal after compression is being launched by the UWB transmitting chip.Video interface can change according to different video signal formats, and the video decode module generally adopts decoding chip to realize, inputs to compression module by decoded chip with consolidation form.H.264 video compressing module adopts mode to compress, and the CPLD module is mainly that data format is adjusted to the form that the UWB transmitting chip needs, and send the wireless transmission chip data by after adjusting.
The major function of video output board be reception by the UWB receiver module from the intersection video data of video input plate, simultaneously data are carried out H.164 decompress(ion), by the video format conversion module, vision signal is exported the interleaving function of completion system.
The UWB receiver module is mainly to be made of the wireless receiving signal, receives from the video data after the tablet compression; Four road video compression datas carry out the data format adjustment by the CPLD module; The video decompression module major function is that the video data of form is H.264 carried out decompress(ion), reverts to normal video data format; The video format conversion module is mainly that video data is carried out color gamut conversion, converts the call format that satisfies video output to.
203, determine the video crossover scale;
In the present embodiment, completing steps 201 and step 202 just can obtain the quantity of UWB transmitter module and UWB video output module, for step 204 is prepared.
204, distribute for each UWM transmitter module and UWM receiver module No. ID;
In the present embodiment, master control set distributes for each UWM transmitter module and UWM receiver module No. ID, and the purpose of distributing No. ID is in order to distinguish each different module.
205, receive the video intersection request of No. ID of carrying destination device;
206, obtain the ID of purpose UWM transmitter module in the request of receiver, video intersection and the ID of purpose UWM receiver module;
In the present embodiment, in step 205 and step 206 and the first embodiment, step 101 and step 102 are identical, and therefore not to repeat here.
207, judge whether the current video receive path is idle;
If 208 current video receive paths are in idle condition, carry out step 209;
If the current video receive path is in busy state, return to step 205;
209, send the video reception instruction of carrying UWM transmitter module ID and arrive purpose UWM receiver module.
In the present embodiment, before master control set sends the video reception instruction to purpose UWB transmitter module, can judge first whether the current video receive path is idle, if the current video receive path is in idle condition, master control set is execution in step 209 directly, directly send the video reception instruction to purpose UWB receiver module, this video reception instruction can for, make purpose UWB receiver module receive the video data of the UWB transmitter module that carries in instruction.If the current video receive path is in busy state, master control set can be removed the work at present state, finishes work request last time, and returns to step 205, receives new video intersection request, and new video reception command is arrived purpose UWM receiver module.
Need to prove, the mode that master control set and other video input plate and video output board have adopted bus and interruption to return is controlled, interruption processing module on master control set provides an interrupt address decoding function, distribute an interrupt number to each input or output card, make master control set can judge interrupt requests on any piece veneer specifically.The main control chip of master control set is controlled video input plate, video output board by iic bus, because in master control be the IIC main equipment, other integrated circuit board is that IIC is from equipment, so each input and output veneer is all without the ability of initiating communication.In order to address this problem, system has distributed the interrupt number of for each input and output veneer, adopts the mode of interrupt requests to communicate request.When if each input/output board needs master control set to do special processing, send one with the interrupt signal of integrated circuit board ID own, after decoding through the interruption processing module on master control set, master control set is to enter status register inquiry of the integrated circuit board that sends interruption, process corresponding problem, after finishing dealing with, remove and interrupt.
In the present embodiment, master control set is first added up UWB transmitter module and UWB receiver module in video output board and video input plate, obtains the video crossover scale, then is that each UWB transmitter module and UWB receiver module distribute No. ID; Master control set carries the video intersection request of No. ID of destination device by reception, thereby obtains order UWB receiver module ID and purpose UWB transmitter module ID; Then, master control set can judge first whether the current video receive path is in idle condition, if the current video passage is in idle condition, can send the video reception instruction to purpose UWB receiver module, if the current video receive path is in busy state, master control set can be removed the work at present state, finishes work request last time, and new video reception command is arrived purpose UWM receiver module.The user can increase or reduce UWB transmitter module and UWB receiver module quantity as required, can increase and decrease as required video and intersect way, makes the video crossover scale can infinite expanding.And the video input plate can separate with output board, has broken away from the restriction on the space, in addition, can save video input plate and video output board in system; Realize simply, without the restriction of High speed rear panel wiring.
The above is described the second embodiment of a kind of video cross method that the embodiment of the present invention provides, and the below is described the 3rd embodiment of a kind of video cross method that the embodiment of the present invention provides:
See also Fig. 3, the 3rd embodiment of a kind of video cross method that the embodiment of the present invention provides specifically comprises:
301, UWM transmitter module in the video input plate is added up;
302, UWM receiver module in the video output board is added up;
303, determine the video crossover scale;
304, distribute for each UWM transmitter module and UWM receiver module No. ID;
305, receive the video intersection request of No. ID of carrying destination device;
306, obtain the ID of purpose UWM transmitter module in the request of receiver, video intersection and the ID of purpose UWM receiver module;
In the present embodiment, step 301 step 201 to step 306 and the second embodiment is identical to step 206, and therefore not to repeat here.
307, judge whether the current video sendaisle is idle;
If 308 current video sendaisles are in idle condition, carry out step 309;
If the current video sendaisle is in busy state, return to step 305;
309, send the video reception instruction of carrying UWM receiver module ID and arrive purpose UWM transmitter module.
In the present embodiment, before master control set receives and sends order to purpose UWB transmitter module transmission video, can judge first whether the current video sendaisle is idle, if the current video sendaisle is in idle condition, master control set is execution in step 309 directly, directly send video and send instructions to purpose UWB transmitter module, this video send instruction can for, make purpose UWB transmitter module send the UWB receiver module that video data carries in the instruction.If the current video sendaisle is in busy state, master control set can be removed the work at present state, finishes work request last time, and returns to step 305, receives new video intersection request, and new video is sent command to purpose UWM transmitter module.
In the present embodiment, master control set is first added up UWB transmitter module and UWB receiver module in video output board and video input plate, obtains the video crossover scale, then is that each UWB transmitter module and UWB receiver module distribute No. ID; Master control set carries the video intersection request of No. ID of destination device by reception, thereby obtains order UWB receiver module ID and purpose UWB transmitter module ID; Then, master control set can judge first whether the current video sendaisle is in idle condition, if the current video sendaisle is in idle condition, can send video and send instruction to purpose UWB transmitter module, if the current video sendaisle is in busy state, master control set can be removed the work at present state, finishes work request last time, and new video is sent command to purpose UWM receiver module.The user can increase or reduce UWB transmitter module and UWB receiver module quantity as required, can increase and decrease as required video and intersect way, makes the video crossover scale can infinite expanding.And the video input plate can separate with output board, has broken away from the restriction on the space, in addition, can save video input plate and video output board in system; Realize simply, without the restriction of high speed back wiring.
The above is described the example of executing of a kind of video cross method that the embodiment of the present invention provides, and the below is described the first embodiment of a kind of master control set that the embodiment of the present invention provides:
See also Fig. 4, the embodiment of a kind of master control set that the embodiment of the present invention provides specifically comprises:
Receiving element 401 is used for receiving the video intersection request of No. ID of carrying destination device;
Acquiring unit 402 is used for obtaining No. ID of destination device;
The embodiment of a kind of master control set that the embodiment of the present invention provides further comprises:
The first statistic unit 404 is used for the UWB transmitter module is added up;
The second statistic unit 405 is used for the UWB receiver module is added up;
Determining unit 406 is used for determining the video crossover scale;
The embodiment of a kind of master control set that the embodiment of the present invention provides further comprises:
The first judging unit 408 is used for judging whether the current video receive path is idle;
The first transmitting element 403 is used for the current video receive path during free time, sends the video reception instruction of the ID that carries the UWM transmitter module to purpose UWM receiver module.
The below is with the example in a practical application, and the correspondence between the first embodiment unit of a kind of master control set that the embodiment of the present invention is provided is described:
The first statistic unit 404 can be added up UWM transmitter module in the video input plate, and the second statistic unit 405 can be added up UWM receiver module in the video output board;
Need to prove, each piece video input plate can be with 4 UWB transmitter modules, and each piece video output board can be with four UWB receiver modules.
Need to prove, can first be added up by UWM transmitter module in 404 pairs of video input plates of the first statistic unit, also can first be added up by UWM receiver module in 405 pairs of video output boards of the second statistic unit, do not do concrete restriction at this.
After the quantity of statistics UWB transmitter module and UWB video output module, determining unit 406 can be determined the video crossover scale; Then, allocation units 407 distribute for each UWM transmitter module and UWM receiver module No. ID;
In the present embodiment, allocation units 407 distribute for each UWM transmitter module and UWM receiver module No. ID, and the purpose of distributing No. ID is in order to distinguish each different module.
Receiving element 401 can the receiver, video intersection be asked;
In the present embodiment, the user sends the request of video intersection by program, this video intersects can comprise which road video data transmitting delivers to the output of a certain road in request, for example the 3 road video data transmitting is delivered to G road output, in actual applications can be by communicating between video input plate and video output board, the UWB transmitter module can be integrated on the video input plate, and the UWB receiver module can be integrated on the video output board.Intersect at video and ask to comprise the ID of UWB transmitter module and the ID of UWB receiver module.
Then, acquiring unit 402 can obtain the ID of purpose UWM transmitter module in the request of receiver, video intersection and the ID of purpose UWM receiver module;
In the present embodiment, receiving element 401 can receive the request of above-mentioned video intersection, therefrom obtains the ID of UWB transmitter module and the ID of UWB receiver module by acquiring unit 402.
The first judging unit 408 can judge whether the current video receive path is idle; If the current video receive path is in idle condition, directly send the video reception instruction to purpose UWB receiver module by the first transmitting element 403; If the current video receive path is in busy state, remove the work at present state, finish work request last time, receive new video intersection request, new video reception command is arrived purpose UWM receiver module.
In the present embodiment, before the first transmitting element 403 sends the video reception instruction to purpose UWB transmitter module, the first judging unit 408 can judge whether the current video receive path is idle, if the current video receive path is in idle condition, directly send the video reception instruction to purpose UWB receiver module by the first transmitting element 403; If the current video receive path is in busy state, remove the work at present state, finish work request last time, receive new video intersection request, new video reception command is arrived purpose UWM receiver module.
Need to prove, the mode that master control set and other video input plate and video output board have adopted bus and interruption to return is controlled, interruption processing module on master control set provides an interrupt address decoding function, distribute an interrupt number to each input or output card, make master control set can judge interrupt requests on any piece veneer specifically.The main control chip of master control set is controlled video input plate, video output board by iic bus, because in master control be the IIC main equipment, other integrated circuit board is that IIC is from equipment, so each input and output veneer is all without the ability of initiating communication.In order to address this problem, system has distributed the interrupt number of for each input and output veneer, adopts the mode of interrupt requests to communicate request.When if each input/output board needs master control set to do special processing, send one with the interrupt signal of integrated circuit board ID own, after decoding through the interruption processing module on master control set, master control set is to enter status register inquiry of the integrated circuit board that sends interruption, process corresponding problem, after finishing dealing with, remove and interrupt.
In the present embodiment, in the first statistic unit 404 and 405 pairs of video output boards of the second statistic unit and video input plate, UWB transmitter module and UWB receiver module are added up, obtain the video crossover scale by determining unit 406, then be that each UWB transmitter module and UWB receiver module distribute No. ID by allocation units 407; Receiving element 401 carries the video intersection request of No. ID of destination device by reception, thereby acquiring unit 402 obtains purpose UWB receiver module ID and purpose UWB transmitter module ID; Then, the first judging unit 408 can judge first whether the current video sendaisle is in idle condition, if the current video sendaisle is in idle condition, the first transmitting element 403 can send video and send instruction to purpose UWB transmitter module, if the current video sendaisle is in busy state, master control set can be removed the work at present state, finishes work request last time, and new video is sent command to purpose UWM receiver module.The user can increase or reduce UWB transmitter module and UWB receiver module quantity as required, can increase and decrease as required video and intersect way, makes the video crossover scale can infinite expanding.And the video input plate can separate with output board, has broken away from the restriction on the space, in addition, can save video input plate and video output board in system; Realize simply, without the restriction of high speed back wiring.
The above is described the first embodiment of a kind of master control set that the embodiment of the present invention provides, and the below is described the second embodiment of a kind of master control set that the embodiment of the present invention provides:
See also Fig. 5, the embodiment of a kind of master control set that the embodiment of the present invention provides specifically comprises:
Receiving element, 501, be used for receiving the video intersection request of No. ID of carrying destination device;
Acquiring unit 502 is used for obtaining No. ID of destination device;
The embodiment of a kind of master control set that the embodiment of the present invention provides further comprises:
The first statistic unit 504 is used for the UWB transmitter module is added up;
The second statistic unit 505 is used for the UWB receiver module is added up;
Determining unit 506 is used for determining the video crossover scale;
The embodiment of a kind of master control set that the embodiment of the present invention provides further comprises:
The second judging unit 508 is used for judging whether the current video sendaisle is idle;
The second transmitting element 503, the video that sends the ID that carries the UWM receiver module when idle for the current video sendaisle sends instructions to purpose UWM transmitter module.
The below is with the example in a practical application, and the correspondence between the first embodiment unit of a kind of master control set that the embodiment of the present invention is provided is described:
The first statistic unit 504 can be added up UWM transmitter module in the video input plate, and the second statistic unit 505 can be added up UWM receiver module in the video output board;
Need to prove, each piece video input plate can be with 4 UWB transmitter modules, and each piece video output board can be with four UWB receiver modules.
Need to prove, can first be added up by UWM transmitter module in 504 pairs of video input plates of the first statistic unit, also can first be added up by UWM receiver module in 505 pairs of video output boards of the second statistic unit, do not do concrete restriction at this.
After the quantity of statistics UWB transmitter module and UWB video output module, determining unit 506 can be determined the video crossover scale; Then, allocation units 507 distribute for each UWM transmitter module and UWM receiver module No. ID;
In the present embodiment, allocation units 507 distribute for each UWM transmitter module and UWM receiver module No. ID, and the purpose of distributing No. ID is in order to distinguish each different module.
Receiving element 501 can the receiver, video intersection be asked;
In the present embodiment, the user sends the request of video intersection by program, this video intersects can comprise which road video data transmitting delivers to the output of a certain road in request, for example the 3 road video data transmitting is delivered to G road output, in actual applications can be by communicating between video input plate and video output board, the UWB transmitter module can be integrated on the video input plate, and the UWB receiver module can be integrated on the video output board.Intersect at video and ask to comprise the ID of UWB transmitter module and the ID of UWB receiver module.
Then, acquiring unit 502 can obtain the ID of purpose UWM transmitter module in the request of receiver, video intersection and the ID of purpose UWM receiver module;
In the present embodiment, receiving element 501 can receive the request of above-mentioned video intersection, therefrom obtains the ID of UWB transmitter module and the ID of UWB receiver module by acquiring unit 502.
The second judging unit 508 can judge whether the current video receive path is idle; If the current video receive path is in idle condition, directly send the video reception instruction to purpose UWB receiver module by the second transmitting element 503; If the current video receive path is in busy state, remove the work at present state, finish work request last time, receive new video intersection request, new video reception command is arrived purpose UWM receiver module.
In the present embodiment, before the second transmitting element 503 sends the video reception instruction to purpose UWB transmitter module, the second judging unit 508 can judge whether the current video receive path is idle, if the current video receive path is in idle condition, directly send the video reception instruction to purpose UWB receiver module by the second transmitting element 503; If the current video receive path is in busy state, remove the work at present state, finish work request last time, receive new video intersection request, new video reception command is arrived purpose UWM receiver module.
Need to prove, the mode that master control set and other input/output board have adopted bus and interruption to return is controlled, shown in the concrete following description of communication mode.Interruption processing module on master control set provides an interrupt address decoding function, distributes an interrupt number to each input or output card, makes master control set can judge interrupt requests on that piece veneer specifically.The main control chip of master control set by iic bus to input, output card controls because in master control be the IIC main equipment, other integrated circuit board is that IIC is from equipment, so the ability that each input and output veneer is all communicated by letter without initiation.In order to address this problem, system has distributed the interrupt number of for each input and output veneer, adopts the mode of interrupt requests to communicate request.When if each input/output board needs master control set to do special processing, send one with the interrupt signal of integrated circuit board ID own, after decoding through the interruption processing module on master control set, master control set is to enter status register inquiry of the integrated circuit board that sends interruption, process corresponding problem, after finishing dealing with, remove and interrupt.
In the present embodiment, in the first statistic unit 504 and 505 pairs of video output boards of the second statistic unit and video input plate, UWB transmitter module and UWB receiver module are added up, obtain the video crossover scale by determining unit 506, then be that each UWB transmitter module and UWB receiver module distribute No. ID by allocation units 507; Receiving element 501 carries the video intersection request of No. ID of destination device by reception, thereby acquiring unit 502 obtains purpose UWB receiver module ID and purpose UWB transmitter module ID; Then, the second judging unit 508 can judge first whether the current video sendaisle is in idle condition, if the current video sendaisle is in idle condition, the first transmitting element 503 can send video and send instruction to purpose UWB transmitter module, if the current video sendaisle is in busy state, master control set can be removed the work at present state, finishes work request last time, and new video is sent command to purpose UWM receiver module.The user can increase or reduce UWB transmitter module and UWB receiver module quantity as required, can increase and decrease as required video and intersect way, makes the video crossover scale can infinite expanding.And the video input plate can separate with output board, has broken away from the restriction on the space, in addition, can save video input plate and video output board in system; Realize simply, without the restriction of high speed back wiring.
The those skilled in the art can be well understood to, and is the convenience described and succinct, the system of foregoing description, and the specific works process of device and unit can with reference to the corresponding process in preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual the realization, other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be also physically to separate, and the parts that show as the unit can be or can not be also physical locations, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in a computer read/write memory medium.Based on such understanding, part or all or part of of this technical scheme that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: the various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a video cross method, is characterized in that, comprising:
The video intersection request of No. ID of destination device is carried in reception;
Obtain described destination device No. ID;
Obtain the scale of destination device, and according to described scale increase and decrease destination device;
Send video according to described No. ID and intersect instruction to destination device;
Described destination device comprises UWB transmitter module and UWB receiver module;
Described UWB transmitter module and described UWB receiver module carry out video by the UWB wireless mode and intersect.
2. video cross method according to claim 1, is characterized in that,
The video intersection request step of No. ID that destination device is carried in described reception also comprises before:
Described UWB transmitter module is added up;
Described UWB receiver module is added up;
Determine the video crossover scale;
Distribute for each described UWM transmitter module and described UWB receiver module No. ID.
3. video cross method according to claim 1, is characterized in that,
The described ID step of obtaining described destination device also comprises afterwards:
Judge whether the current video receive path is idle;
If send the video reception instruction of the ID that carries described UWM transmitter module to purpose UWM receiver module;
If not, remove the work at present state, finish work request last time, new video reception command is arrived purpose UWM receiver module.
4. video cross method according to claim 1, is characterized in that,
The described ID step of obtaining described destination device also comprises afterwards:
Judge whether the current video sendaisle is idle;
If the video that sends the ID that carries described UWM receiver module sends instructions to purpose UWM transmitter module;
If not, remove the work at present state, finish work request last time, new video is sent command to purpose UWM transmitter module.
5. the described video cross method of any one according to claim 1 to 4, is characterized in that, described method also comprises:
Communicate by letter by between interrupt requests mode and described UWB transmitter module and UWB receiver module.
6. video cross method according to claim 5, is characterized in that, described method also comprises:
Give each described UWM transmitter module and described UWB receiver module assigned interrupt number;
Communicate according to described interrupt number and described UWM transmitter module and described UWB receiver module.
7. a master control set, is characterized in that, comprising:
Receiving element is used for receiving the video intersection request of No. ID of carrying destination device;
Acquiring unit is used for obtaining No. ID of described destination device;
The first transmitting element is used for sending video according to described No. ID and intersects instruction to destination device.
8. master control set according to claim 7, is characterized in that, described master control set also comprises:
The first statistic unit is used for described UWB transmitter module is added up;
The second statistic unit is used for described UWB receiver module is added up;
Determining unit is used for determining the video crossover scale;
Allocation units are used for distributing No. ID to each described UWM transmitter module and described UWB receiver module.
9. master control set according to claim 7, is characterized in that, described master control set also comprises:
The first judging unit is used for judging whether the current video receive path is idle;
The second transmitting element is used for the current video receive path during free time, sends the video reception instruction of the ID that carries described UWM transmitter module to purpose UWM receiver module.
10. master control set according to claim 7, is characterized in that, described master control set also comprises:
The second judging unit is used for judging whether the current video sendaisle is idle;
The 3rd transmitting element, the video that sends the ID that carries described UWM receiver module when idle for the current video sendaisle sends instructions to purpose UWM transmitter module.
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| CN103108136B (en) | 2016-09-28 |
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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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