Multi-screen sharing method and system based on MOSTTechnical field
The present invention relates to multi-screen technology of sharing fields, more particularly, to a kind of multi-screen sharing method based on MOST and areSystem.
Background technique
With the increase of people's demand and the raising of scientific and technological level, more media content (video, bluetooth, CarplayDeng) it is introduced in car.Although in-car entertainment content is very abundant as compared with the past, number of screen is also from only front-seat screen beforeThe combination of two (front-seat a screen and two heel row screens) after becoming previous, but, be between screen independently, cannotShared, i.e., interior multiple screens do not have any intersection, and user can only respectively see that each content or multiple users see a screen,Reduce the entertainment of vehicle entertainment system.Independently due to front and back screen, so needing to develop two systems (software and hardPart) sharing problem is solved, development cost additionally increase, virtually increase vehicle cost, also increase the burden of enterprise.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of multi-screen sharing method and system based on MOST, to alleviateIt is that independently, cannot share between screen existing in the prior art, i.e., interior multiple screens do not have any intersection,User can only respectively see that each content or multiple users see a screen, and the technology for reducing the entertainment of vehicle entertainment system is askedTopic.
In a first aspect, the embodiment of the invention provides a kind of multi-screen shared system based on MOST, wherein include: hostAnd be respectively connected with by connector and the host at least one audio & video equipment, master control screen, at least one rear display screen；Wherein, the master control screen and at least one described rear display screen access in MOST network；
The audio & video equipment, for sending audio/video information to the host；
The host, for being encoded to the audio/video information, and the audio/video coding information that will be obtained after codingIt is sent to MOST network；
The master control screen, for being decoded to the audio/video coding information, by decoded first audio/video decodingInformation is shown；
Display screen after described, for receiving the audio/video coding information by the MOST network, to the audio-videoEncoded information is decoded, and obtains the second audio/video decoding information.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein instituteIt states master control screen and the MOST network is accessed by the first MOST chip, the rear display screen passes through described in the access of the 2nd MOST chipMOST network.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein instituteStating audio & video equipment includes: navigation equipment, multimedia equipment, full-view camera, night vision cam, USB multimedia equipment and widePlaying multimedia equipment.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein instituteIt states master control screen to be also used to, obtains the sharing operation of user, led to the first audio/video decoding information based on the sharing operationIt crosses the MOST network and is sent to the rear display screen.
With reference to first aspect, the embodiment of the invention provides the 4th kind of possible embodiments of first aspect, wherein instituteIt states rear display screen to be also used to, obtain user follows operation, follows operation on the MOST network described in selection based on describedAudio/video coding information, and the audio/video coding information of selection is decoded, obtain the second audio/video decoding information.
With reference to first aspect, the embodiment of the invention provides the 5th kind of possible embodiments of first aspect, wherein instituteIt states master control screen to be also used to, priority ranking is carried out to audio-video frequency content corresponding with all audio & video equipments, and according to excellentFirst grade ranking results show the audio-video frequency content.
With reference to first aspect, the embodiment of the invention provides the 6th kind of possible embodiments of first aspect, wherein instituteStating priority ranking result includes:
High priority is set by the full-view camera or the corresponding audio-video frequency content of the night vision cam；
Middle priority is set by the corresponding audio-video frequency content of the navigation equipment；
Set low excellent for the audio-video frequency content of the multimedia equipment, USB multimedia equipment and broadcast multimedia equipmentFirst grade.
With reference to first aspect, the embodiment of the invention provides the 7th kind of possible embodiments of first aspect, wherein instituteThe system of stating further includes the loudspeaker being connected with the master control screen.
With reference to first aspect, the embodiment of the invention provides the 8th kind of possible embodiments of first aspect, wherein instituteThe system of stating further includes the earphone being connected with the rear display screen.
Second aspect, the embodiment of the present invention also provide a kind of multi-screen sharing method based on MOST, wherein include:
Receive the audio/video information that audio & video equipment is sent to host；
The audio/video information is encoded using the host, and the audio/video coding information obtained after coding is sent outIt send to MOST network；
Judge whether master control screen and/or rear display screen receive the audio/video coding information；
If the master control screen receives the audio/video coding information, the audio/video coding information is decoded, it willDecoded first audio/video decoding information is shown；
If display screen receives the audio/video coding information after described, the audio-video is received by the MOST networkEncoded information is decoded the audio/video coding information, obtains the second audio/video decoding information.
The embodiment of the present invention brings following the utility model has the advantages that the shared system of the multi-screen provided in an embodiment of the present invention based on MOSTSystem, comprising: host and at least one audio & video equipment being respectively connected with by connector and the host, master control screen, at leastDisplay screen after one；Wherein, the master control screen and at least one described rear display screen access in MOST network；The audio-videoEquipment sends audio/video information to the host；The host encodes the audio/video information, and will obtain after codingAudio/video coding information be sent to MOST network；The master control screen is decoded the audio/video coding information, will decodeThe first audio/video decoding information afterwards is shown；Display screen receives the audio/video coding by the MOST network after describedInformation is decoded the audio/video coding information, obtains the second audio/video decoding information.Sound view in the embodiment of the present inventionFrequency equipment provides audio/video information, and host encodes audio/video information, and master control screen and rear display screen pass through access MOST netNetwork is decoded audio/video coding information, to realize information sharing.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specificationIt obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claimsAnd specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperateAppended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior artEmbodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described belowAttached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative laborIt puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structure chart for multi-screen shared system based on MOST that the embodiment of the present invention one provides；
Fig. 2 is the structure chart for the system access MOST network that the embodiment of the present invention one provides；
Fig. 3 is a kind of flow chart of the multi-screen sharing method based on MOST provided by Embodiment 2 of the present invention.
Icon:
10- host；20- connector；30- audio & video equipment；31- navigation equipment；32- multimedia equipment；33- panoramic shootingHead；34- night vision cam；35-USB multimedia equipment；36- broadcast multimedia equipment；40- master control screen；The first MOST core of 41-Piece；Display screen after 50-；The 2nd MOST chip of 51-；60- loudspeaker；70- earphone.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present inventionTechnical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather thanWhole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premiseUnder every other embodiment obtained, shall fall within the protection scope of the present invention.
Currently, between multiple screens independently, cannot share, i.e., interior multiple screens do not have any intersection, userIt can only respectively see that each content or multiple users see a screen, reduce the entertainment of vehicle entertainment system, be based on this, this hairA kind of multi-screen sharing method and system based on MOST that bright embodiment provides can provide audio-video letter by audio & video equipmentBreath, host encode audio/video information, and master control screen and rear display screen are by access MOST network, to audio/video coding informationIt is decoded, to realize information sharing.
Embodiment one:
For convenient for understanding the present embodiment, first to a kind of multi-screen based on MOST disclosed in the embodiment of the present inventionShared system describes in detail.
Referring to Fig.1, the multi-screen shared system provided in an embodiment of the present invention based on MOST, may include: host 10 andAt least one audio & video equipment 30 for being respectively connected with by connector 20 and host 10, master control screen 40, at least one rear display screen50；Wherein, master control screen 40 and at least one rear display screen 50 access in MOST network；
Audio & video equipment 30, for sending audio/video information to host 10；
Host 10 is sent to for encoding to audio/video information, and by the audio/video coding information obtained after codingMOST network；
Master control screen 40, for being decoded to audio/video coding information, by decoded first audio/video decoding information intoRow display；
Display screen 50 afterwards solve audio/video coding information for receiving audio/video coding information by MOST networkCode, obtains the second audio/video decoding information.
In embodiments of the present invention, MOST (Media Oriented System Transport, the system of media guidanceTransmission) it is a kind of in-vehicle network Interface Standard, and construct the inter-vehicle information system towards vehicle-mounted Audio and vehicle mounted multimediaAgreement may be implemented primarily to the multimedia component in automobile or other transport vehicles can be interconnected and be designedIt is connected with a variety of media products.The application of MOST network may include: illustratively that MOST50/150 system supports 720P,The high-definition format data of 1080P are transmitted.
By taking the multi-screen shared system of automobile as an example, host 10 can refer to amusement navigation host 10, the number of rear display screen 50It is indefinite, illustratively, due in automobile heel row generally there are two seat, if each seat respectively install one after display screen 50,It, can also only display screen 50 after separately installed one there are two rear display screen 50 in automobile.MOST network is referring to Fig. 2, by host10, master control screen 40 and rear display screen 50 are linked into a MOST network, and the shared of audio/video information may be implemented.Likewise,Other equipment on network can also realize information sharing with master control screen 40, rear display screen 50.
Display screen 50 can be linked into MOST network after one master control screen 40 and two, and three Screen sharing oneHost 10.Therefore, audio/video information can be pushed to other screens from one of screen.Audio/video information is transmitted by host 10In image and sound.After host 10 decodes audio/video information, decoded audio/video information can be sent the two of heel row toDisplay screen 50 after a.
The processor of host 10 is responsible for handling audio/video information, is sent on MOST network after audio/video information is encoded,Then display screen 50 receives audio/video information relevant to oneself respectively and is decoded after two of heel row, is then presented on screenOr 70 end of earphone.
The mode of MOST network, comprising: host 10 is responsible for the audio/video information of processing master control screen 40 and rear display screen 50；It is mainControl 40 pairs of hosts 10 of screen be sent to after the audio/video coding information decoding of MOST network obtained the first audio/video decoding information intoRow display, or display after display screen 50 the second audio/video decoding information, similarly, rear display screen 50 is sent to MOST to host 10Obtained the second audio/video decoding information is shown after the audio/video coding information decoding of network, or display master control screen 40 theOne audio/video decoding information, or the audio/video coding for showing that another rear display screen 50 is sent to MOST network to host 10 are believedThe the second audio/video decoding information obtained after breath decoding.
Further, system further includes the loudspeaker 60 being connected with master control screen 40.
Further, system further includes the earphone 70 being connected with rear display screen 50.
Further, master control screen 40 is also used to, and obtains the sharing operation of user, is based on sharing operation for the first audio-video solutionCode information is sent to rear display screen 50 by MOST network.
It, can be mutual if the sound of display screen 50 is all issued from interior sound equipment after a master control screen 40 and two in automobileInterference is mutually generated, therefore the sound of the decoded second audio/video decoding information of display screen 50 is sent out from earphone 70 after two of heel rowOut.Only the decoded first audio/video decoding information voice of master control screen 40 of front-seat screen is issued from interior sound equipment.
Further, master control screen 40 accesses MOST network by the first MOST chip 41, and rear display screen 50 passes through secondMOST chip 51 accesses MOST network.
Further, audio & video equipment 30 includes: that navigation equipment 31, multimedia equipment 32, full-view camera 33, night vision are taken the photographAs head 34, USB multimedia equipment 35 and broadcast multimedia equipment 36.
Host 10 can also install other navigation equipments 31 with dash navigation equipment 31.In practical applications, panorama is taken the photographOne camera is respectively installed as first 33 in four orientation of automobile, full-view camera 33 passes through 4 high-definition camera groupsAt 360 degree of panorama systems, defaults master control screen 40 and play display, the audio/video information for the full-view camera 33 that master control screen 40 is shown canTo share with rear display screen 50.The audio/video information default master control screen 40 of night vision cam 34 plays, can be with rear display screen 50Share.
USB multimedia equipment 35 is played by USB flash disk playing audio-video information, default master control screen 40, the U that master control screen 40 playsThe audio/video information of disk can be shared with rear display screen 50.
Further, rear display screen 50 is also used to, and obtain user follows operation, is operated on MOST network based on followingAudio/video coding information is selected, and the audio/video coding information of selection is decoded, obtains the second audio/video decoding information.
Further, master control screen 40 is also used to, and is carried out to audio-video frequency content corresponding with whole audio & video equipments 30 preferentialGrade sequence, and audio-video frequency content is shown according to priority ranking result.
In embodiments of the present invention, priority ranking result includes:
High priority is set by full-view camera 33 or the corresponding audio-video frequency content of night vision cam 34；
Middle priority is set by the corresponding audio-video frequency content of navigation equipment 31；
Set low for the audio-video frequency content of multimedia equipment 32, USB multimedia equipment 35 and broadcast multimedia equipment 36Priority.
On the basis of constructing the multi-screen shared system based on MOST, the sound of master control screen 40 Yu rear display screen 50 is devisedTwo rules of video information transmission: sharing operation and following operation, and the function of each equipment is it has been determined that last need in systemDetermine the logic of master control screen 40 Yu rear display screen 50, system just can the Methodistic sharing operation for completing audio/video information andFollow operation.Function may include: and the corresponding navigation feature of navigation equipment 31, multimedia function corresponding with multimedia equipment 32It can be with the corresponding panorama function of full-view camera 33, night vision function corresponding with night vision cam 34 and USB multimedia equipment35 corresponding USB multimedia functions and broadcast multimedia function corresponding with broadcast multimedia equipment 36.
In practical applications, audio/video information can be shared by the sharing operation on master control screen 40 front-seat in automobileTo the rear display screen 50 of heel row, the display content of rear display screen 50 and the display content of master control screen 40 are consistent, if rear display screen 50It is not desired to share identical display content with master control screen 40, then can exit sharing operation, select other sounds view in MOST networkFrequency information is shown.If the non-selected sharing operation of main screen, rear display screen 50 can operate display and master control screen 40 according to followingConsistent display content, rear display screen 50 two if it exists, respectively left back display screen 50 and it is right after display screen 50, left back displayScreen 50, which can choose, follows operation, display and the consistent display content of display screen 50 behind the right side, alternatively, display screen 50 can select behind the right sideIt selects and follows operation, display and the consistent display content of left back display screen 50, concrete operations are selected according to user oneself.
In system, the rear display screen 50 of automobile rear is identical with the menu content that front-seat master control screen 40 is shown, works as masterWhen control screen 40 is not turned on some function, this function can be opened by rear display screen 50, at this point, master control screen 40 and rear displayScreen 50 display audio-video frequency content it is inconsistent, master control screen 40 need to audio-video frequency content corresponding with whole audio & video equipments 30 intoThe sequence of row major grade, and audio-video frequency content is shown according to priority ranking result.If the audio-video that master control screen 40 is shownThe priority of content is higher than the priority of the audio-video frequency content for a certain function that rear display screen 50 will be opened, then in rear display screenWhen 50 unlatching function, master control screen 40, which remains unchanged, shows the display content of oneself, is not influenced by rear display screen 50；If master control screen 40The priority of the audio-video frequency content for a certain function that the priority of the audio-video frequency content of display will be opened with rear display screen 50 isSame rank, then when rear display screen 50 opens the function, master control screen 40, which remains unchanged, shows the display content of oneself, not by rear displayThe influence of screen 50；If the priority for the audio-video frequency content that master control screen 40 is shown is lower than a certain function that rear display screen 50 will be openedAudio-video frequency content priority, then when rear display screen 50 opens the function, master control screen 40 also shows rear display screen 50 and opensThe audio-video frequency content of function.Illustratively, if master control screen 40 currently shows night vision function, what rear display screen 50 will be opened is to leadBoat function, when rear display screen 50 opens navigation feature, the consideration corresponding audio-video frequency content of night vision cam 34 is high priority,Higher than the corresponding audio-video frequency content of navigation equipment 31 of middle priority, so master control screen 40 is not opened navigation function by rear display screen 50The influence of energy.Alternatively, what rear display screen 50 will be opened is night vision function, rear if master control screen 40 currently shows navigation featureWhen display screen 50 opens night vision function, the consideration corresponding audio-video frequency content of navigation equipment 31 is middle priority, is lower than high priorityThe corresponding audio-video frequency content of night vision cam 34, so master control screen 40 show after display screen 50 open night vision function.
Embodiment two:
Fig. 3 is a kind of flow chart of the multi-screen sharing method based on MOST provided by Embodiment 2 of the present invention.
Referring to Fig. 3, the multi-screen sharing method provided in an embodiment of the present invention based on MOST, comprising:
Step S101 receives the audio/video information that audio & video equipment is sent to host；
The audio/video coding information that step S102 encodes audio/video information using host, and will obtain after codingIt is sent to MOST network；
Step S103, judges whether master control screen and/or rear display screen receive audio/video coding information；
Step S104 is decoded audio/video coding information, will decode if master control screen receives audio/video coding informationThe first audio/video decoding information afterwards is shown；
Step S105 receives audio/video coding letter by MOST network if rear display screen receives audio/video coding informationBreath, is decoded audio/video coding information, obtains the second audio/video decoding information.
Multi-screen shared system provided in an embodiment of the present invention based on MOST, comprising: host and pass through connector and masterAt least one audio & video equipment that machine is respectively connected with, master control screen, at least one rear display screen；Wherein, master control screen and at least oneDisplay screen accesses in MOST network afterwards；Audio & video equipment sends audio/video information to host；Host carries out audio/video informationCoding, and the audio/video coding information obtained after coding is sent to MOST network；Master control screen carries out audio/video coding informationDecoding, decoded first audio/video decoding information is shown；Display screen receives audio/video coding by MOST network afterwardsInformation is decoded audio/video coding information, obtains the second audio/video decoding information.Audio-video in the embodiment of the present invention is setStandby to provide audio/video information, host encodes audio/video information, and master control screen and rear display screen are right by access MOST networkAudio/video coding information is decoded, to realize information sharing.
The flow chart and block diagram in the drawings show the system of multiple embodiments according to the present invention, method and computer journeysThe architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generationA part of one module, section or code of table, a part of the module, section or code include one or more useThe executable instruction of the logic function as defined in realizing.It should also be noted that in some implementations as replacements, being marked in boxThe function of note can also occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually baseOriginally it is performed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted thatIt is the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart, can uses and execute ruleThe dedicated hardware based system of fixed function or movement is realized, or can use the group of specialized hardware and computer instructionIt closes to realize.
The computer program product of multi-screen sharing method based on MOST provided by the embodiment of the present invention, including storeThe computer readable storage medium of program code, the instruction that said program code includes can be used for executing in previous methods embodimentThe method, specific implementation can be found in embodiment of the method, and details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing descriptionIt with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phaseEven ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It canTo be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediaryConnection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete conditionConcrete meaning in invention.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent productIt is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other wordsThe part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meterCalculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be aPeople's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are depositedThe various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely toConvenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second "," third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present inventionTechnical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hairIt is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the artIn the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be lightIt is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not makeThe essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the inventionWithin the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.