CN104243932A - Video image encoding system for large-screen image transmission - Google Patents
Video image encoding system for large-screen image transmission Download PDFInfo
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- CN104243932A CN104243932A CN201410512419.5A CN201410512419A CN104243932A CN 104243932 A CN104243932 A CN 104243932A CN 201410512419 A CN201410512419 A CN 201410512419A CN 104243932 A CN104243932 A CN 104243932A
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Abstract
The invention discloses a video image encoding system for large-screen image transmission. A higher authority or coordinating department can image-copy a picture which a site command views, to display the picture on a large screen of a same-level command center, in a one-key manner, and synchronous viewing of site monitoring pictures is achieved; each monitoring center can autonomously retrieve other monitoring pictures to be viewed, through the system. The system is mainly installed on a site command center or a lower command center to allow signal distribution and wall displaying for video data; meanwhile, the video data is encoded and uploaded; the system is installed at the higher command center or other coordinating departments to allow decoding, distribution and wall displaying of video signals received.
Description
Technical field
The present invention relates to the data transmission technology of data communication field and the encoding and decoding technique of digital processing field, particularly relate to a kind of video coding system for the transmission of large-size screen monitors mirror image.
Background technology
Guard duty work and are two important contents of public security work to the emergency disposal work of the unexpected incidents endangered public security.Since central authorities have implemented since " eight regulations ", the mechanism worked to guard, mode are proposed new requirement.In these two task processes of execution, particularly command centre at different levels analyzing field condition, to study and judge and in decision process, video monitoring image serves irreplaceable effect.How more convenient, more intuitively, more reliably use video monitoring system and video image information to be Remote Decision-making and command scheduling service, be an important content in video monitoring system good application.
Due in guard duty and accident disposal task, county, city, province's multistage linking and decision-making is needed to hold a conference or consultation, but forward position headquarter are generally located at primary command center, there is final decision command, need to weigh and control definitely having access to of live video monitoring image, but higher authorities and other collaborative departments also need synchronously to understand field condition, conveniently coordinate for forward position headquarter provide or propose decision references suggestion, therefore also needing the monitoring image at synchronous viewing scene.So just the image scene ensureing each side's viewing is needed to be consistent.Surveillance center at different levels also needs freely to transfer any monitoring image simultaneously.The most conventional way has two kinds: one to be that floor manager portion is the picture number of watching with offer higher level command centre and assistance department nominally, image scene is had access to according to by the whole province's video monitoring networking system by them, not only increase workload like this, and have little time, can opportunity of combat be incured loss through delay.Two is utilize video conference or video directing system upload images, but once can only transmit a road video, can not meet the requirement of operational coordination commander.
Summary of the invention
For above-mentioned technical problem, the present invention, from the job requirement of guard duty and accident emergency disposal, feature, proposes a kind of video coding system for the transmission of large-size screen monitors mirror image, thus can regulate and control on-site supervision image fast in all cases.
In order to solve above-mentioned technological deficiency, technical scheme of the present invention is as follows:
For large-size screen monitors mirror image transmission video mirror as a coded system, comprise higher level command centre and command centre of subordinate; Command centre of described subordinate comprises mirror image transmission head end encoder, first screen controller and former video matrix, described large screen controller is under the control of management system, vision signal is transferred from former video matrix, large screen controller is input to front mirror encoder the vision signal needing large-size screen monitors to show, this encoder is divided into two each road signal of input, one tunnel outputs to large-size screen monitors and shows, separately lead up to after format conversion and carry out unifying compressed encoding, after coding, be uploaded to the mirror image transmission back end decoders of higher level command centre; Described higher level command centre comprises mirror image transmission back end decoders and second largest screen controller, shows after described mirror image transmission back end decoders exports video decode to second largest screen controller.
Further, the compressed encoding module that described mirror image transmission head end encoder comprises signal input module, signal distribution module, ring lead to output module, format converting module and be connected with format converting module; The vision signal of described each form passes through input module, be divided into two in vision signal distribution module, ring of wherein leading up to leads to output module and outputs to large-size screen monitors and directly show, separately lead up to after format converting module and convert unified SDI format digital video to, then be input to compressed encoding module and carry out compressed encoding.
Further, described mirror image transmission back end decoders comprises input module, decoder module, format converting module and output module; IP vision signal after described compressed encoding, by input module, completes decompression, and after format converting module, forms the vision signal of various form, finally by output module, the vision signal of various form is exported in decoder module.
Beneficial effect of the present invention is: namely by a set of coded system, higher authorities and coordination department can show by the image watched of a key image copying floor manager portion to the large-screen of command centre at the corresponding levels, thus the synchronous viewing realized on-site supervision image, Surveillance center at different levels also can independently transfer the monitoring image watched needed for other by native system simultaneously.Mirror image transfer encoding system is mainly arranged on operation center or command centre of subordinate, realizes dividing the signal of video data mixing wall display, uploads coding video data simultaneously.Mirror image Propagation solution code system is arranged on higher level command centre or other coordination departments, achieve a butt joint receive vision signal decoding, distribute, upper wall display.Large screen controller can be automatically associated to each port of head end encoder, each port of head end encoder is corresponded on splicing large-size screen monitors, user's automated control chart picture is manifested at the ad-hoc location of center large-size screen monitors; Higher level's mirror image screen can define mirror image screen and the distribution thereof at higher level center, respectively which output of which screen of corresponding lower central, higher level's decoder and which input port of subordinate's head end encoder; Lower class mirror-image selection function: the screen of which lower central of mirror image can be selected in higher level center; One binding moves controlling functions: after selecting mirror image lower central by management control system, according to the superior and the subordinate's mirror image template of setting, a key can start mirror image; State-detection and fault warning function: can the operating state of Real-Time Monitoring subordinate Mirror Coding device, find that fault can alarm in time.
Accompanying drawing explanation
Fig. 1 is the structural representation of present system;
Fig. 2 is the structural representation of mirror image of the present invention transmission head end encoder;
Fig. 3 is mirror image transmission back end decoders.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further.As shown in Figure 1, by a kind of video mirror for the transmission of large-size screen monitors mirror image as coded system, catch the video of the large screen display of command centre of subordinate, after coding, be sent to higher level command centre by network, large-size screen monitors synchronously reduce display.System architecture
System mainly consists of the following components:
Command centre of subordinate---video mirror as transcoder;
Higher level command centre---video mirror picture transmission decoder;
Management system---mirror-image fashion, image source, control authority are managed and operate control.
Command centre of described subordinate comprises mirror image transmission head end encoder, first screen controller and former video matrix, described large screen controller is under the control of management system, vision signal is transferred from former video matrix, the premenstrual end mirror of large screen controller distributes a road video access large-screen display as the signal distribution function of video encoder, (this vision signal can be HDMI, DVI, VGA, RGB, BNC signal), this road video of front mirror encoder encodes simultaneously, is uploaded to the mirror image transmission back end decoders of higher level command centre by Video coding; Described higher level command centre comprises mirror image transmission back end decoders and second largest screen controller, shows after described mirror image transmission back end decoders exports video decode to second largest screen controller.
(1) command centre of subordinate Equipments Setting
As shown in Figure 2, command centre of subordinate configuration mirroring transcoder, the vision signal that large screen controller exports distributes a road video access display screen after the signal distribution function of front mirror video encoder, and this road video of front mirror encoder encodes, realizes Video coding and upload simultaneously.
The configuration information of large screen controller has been configured by management system, the configuration of the management system of front end and higher level adopts duplicate configuration database to carry out unified management, do not need the control information of uploading large screen controller, unified configuration information can realize the video mirror picture of the large screen image in front end to the large screen image of higher level
Consider that the large screen controller of lower central has different signal output interfaces, head end encoder needs to support the input of the distinct interface such as BNC, HDMI, DVI (-A/-D), RGB, VGA, adopt standard PC case plate mode, adapted to the video interface of lower central by the Video coding tablet matching distinct interface.
(2) higher level's central apparatus configuration
As shown in Figure 3, higher level Surveillance center configuration mirroring transmission decoder, management system or soft decoding client, video frequency output is to large screen controller and display screen, and mirror image is decoded the display image of lower central.
Back end decoders is also wanted to support that the distinct interface such as BNC, HDMI, DVI (-A/-D), RGB, VGA exports, and adopts standard PC case plate mode, is adapted to the video interface at higher level center by the video decode output board matching distinct interface.
Back end decoders structure is as follows: described mirror image transmission back end decoders comprises input module, decoder module, format converting module and output module; The described IP vision signal caught from lower central, by input module, after decoder module carries out video decode, is converted to the vision signal of various form, and vision signal is exported by output module by format converting module.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered as in scope.
Claims (3)
1. for large-size screen monitors mirror image transmission video mirror as a coded system, it is characterized in that, comprise higher level command centre and command centre of subordinate; Command centre of described subordinate comprises mirror image transmission head end encoder, first screen controller and former video matrix, described large screen controller is under the control of management system, vision signal is transferred from former video matrix, large screen controller is input to front mirror encoder the vision signal needing large-size screen monitors to show, this encoder is divided into two each road signal of input, one tunnel outputs to large-size screen monitors and shows, separately lead up to after format conversion and carry out unifying compressed encoding, after coding, be uploaded to the mirror image transmission back end decoders of higher level command centre; Described higher level command centre comprises mirror image transmission back end decoders and second largest screen controller, shows after described mirror image transmission back end decoders exports video decode to second largest screen controller.
2. a kind of video mirror for the transmission of large-size screen monitors mirror image according to claim 1 is as coded system; it is characterized in that, described mirror image transmission head end encoder comprises signal input module, compressed encoding module that signal distribution module, ring lead to output module, format converting module and be connected with format converting module; The vision signal of described each form passes through input module, be divided into two in vision signal distribution module, ring of wherein leading up to leads to output module and outputs to large-size screen monitors and directly show, separately lead up to after format converting module and convert unified SDI format digital video to, then be input to compressed encoding module and carry out compressed encoding.
3. a kind of video mirror for the transmission of large-size screen monitors mirror image according to claim 1 is as coded system, it is characterized in that, described mirror image transmission back end decoders comprises input module, decoder module, format converting module and output module; IP vision signal after described compressed encoding, by input module, completes decompression, and after format converting module, forms the vision signal of various form, finally by output module, the vision signal of various form is exported in decoder module.
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| CN201410512419.5A CN104243932A (en) | 2014-09-29 | 2014-09-29 | Video image encoding system for large-screen image transmission |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106817569A (en) * | 2017-01-06 | 2017-06-09 | 浙江广信智能建筑研究院有限公司 | A kind of transmission of video images dispatches system |
| CN111327873A (en) * | 2019-07-29 | 2020-06-23 | 杭州海康威视系统技术有限公司 | Scene layout adjusting method and device, electronic equipment and storage medium |
| CN113645448A (en) * | 2021-08-09 | 2021-11-12 | 北京凌壹世纪科技有限公司 | Video decoding method and device suitable for command scheduling |
| CN114125526A (en) * | 2021-12-24 | 2022-03-01 | 北京淳中科技股份有限公司 | Screen mirroring method and device |
| CN114286073A (en) * | 2021-11-18 | 2022-04-05 | 中国北方车辆研究所 | Video image online detection system and method based on graphic coding |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106817569A (en) * | 2017-01-06 | 2017-06-09 | 浙江广信智能建筑研究院有限公司 | A kind of transmission of video images dispatches system |
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| CN111327873B (en) * | 2019-07-29 | 2021-09-21 | 杭州海康威视系统技术有限公司 | Scene layout adjusting method and device, electronic equipment and storage medium |
| CN113645448A (en) * | 2021-08-09 | 2021-11-12 | 北京凌壹世纪科技有限公司 | Video decoding method and device suitable for command scheduling |
| CN114286073A (en) * | 2021-11-18 | 2022-04-05 | 中国北方车辆研究所 | Video image online detection system and method based on graphic coding |
| CN114286073B (en) * | 2021-11-18 | 2024-04-19 | 中国北方车辆研究所 | Video image online detection system and method based on graphic coding |
| CN114125526A (en) * | 2021-12-24 | 2022-03-01 | 北京淳中科技股份有限公司 | Screen mirroring method and device |
| CN114125526B (en) * | 2021-12-24 | 2024-03-15 | 北京淳中科技股份有限公司 | Screen mirroring method and device |
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Application publication date: 20141224 |