A kind of new IPTV service terminal implementation method
Affiliated technical field
The present invention relates to 3C (Computer, Communicatio and Consumer electronics, i.e. computer, communication and consumer electronics) and merge and digital home technical field, especially relate to a kind of new IPTV service terminal implementation method.
Background technology
At present, along with progressively popularizing of INTERNET (the Internet) and improving constantly of bandwidth, the IPTV service has obtained the telecommunications operator with business and the radio and television operator more and more payes attention to, and also has been subjected to liking and using of users.The IPTV system is called IPTV again, subsystems such as its system configuration comprises that streaming media service, program are gathered and edited, storage and authentication and accounting, main storage and the content that transmits are the files in stream media that is encoded to core with MPEG-4, based on the Computer IP Network Transmission.
Current, IPTV user's service terminal mainly contains following two kinds of implementations: (1) " IPTV set-top box+television set " or digital high-definition television all-in-one (general built-in IPTV set-top box functionality); (2) computer (PC)." IPTV set-top box+television set " or digital high-definition television all-in-one mode are simple and easy to use, but the IPTV set-top box is the PC of an embedded computer or simplification in essence, system-specific, lack flexibility, simultaneously, for terminal use and operator, because general purpose PC has become the indispensable electrical equipment of many families, buying the IPTV set-top box is an overlapping investment, has increased system operation cost; And the general purpose PC mode is convenient, flexible, the common treatment ability is strong, but general purpose PC mainly satisfies the office demand from its design concept and software/hardware architectural framework angle, be used for home entertaining aspects such as IPTV and also have many deficiencies,, Audio Processing weak effect less etc. as display screen.
If can be in conjunction with the advantage of above-mentioned two kinds of IPTV service terminal implementations, with processing center, media center, network center and the control centre of general purpose PC, can make full use of the common treatment ability of PC and music sources, video display resource, game resource and the information resources of flexibility and INTERNET magnanimity as family.In addition, the user interface of general purpose PC and mode of operation have become an industry standard, by users are familiar with, more than embedded computer system occupation modes such as IPTV set-top box convenience, upgrading flexibly.And digital high-definition television is a display terminal that has high image quality, large-screen and clear stereo, as family's digital product display centre and audio-visual centre.Each performs its own functions for the two, and its combination advantage is given full play in the seamless again organic integration of independent development respectively, by computer network and digital TV network are organically blended with innovating, greatly expanded the content sources and the application model of digital high-definition television.Become a kind of IPTV service terminal by effective, economic method with household PC and digital high-definition television are interconnected, can either realize the broadcast service of digital TV network, can realize the various data, services of computer network again, at aspects such as common treatment ability, software flexibility, service diversity, storage capacity and economy, compare with " IPTV set-top box+television set " or the digital high-definition television all-in-one scheme of special use, be more conducive to bring into play household PC and digital high-definition television advantage separately, the equipment that also can alleviate the domestic consumer repeats to buy expenditure.Simultaneously, this kind IPTV service terminal is by the extension of many networks, multiple terminals, multiple services fusion and value chain, for providing single audio frequency, video and data service, the domestic consumer changed the information service that provides comprehensive into from the past, a kind of fusion information service platform and total solution have been realized, for the digitlization life in family future brings great convenience.
Summary of the invention
The object of the present invention is to provide a kind of new IPTV service terminal implementation method, in the method, household PC is mainly carried out IPTV relative clients end software, finish works of treatment such as receiving the decode of audio and video stream media signal, digital high-definition television is mainly finished functions such as the demonstration of audio-video signal and broadcast.
The present invention solves the technical scheme that its technical barrier adopts:
1, the interconnected method of household PC and digital high-definition television: can realize by wired and wireless dual mode, wired mode mainly comprises modes such as VGA line, AV line, coaxial cable, twisted-pair feeder, USB line, wireless mode mainly comprises UWB (Ultra Wide Band ultra broadband), Wi-Fi, WiMAX, ZigBee, Wireless USB, wireless 1394, bluetooth (Blue Tooth) and based on the modes such as other specialized protocol of 2.4GHz/5.8GHz frequency band, also can wired and wireless dual mode mixes and uses.Comparatively speaking, twisted-pair feeder, Wi-Fi and UWB are comparatively rational at present three kinds of modes.
2, household PC is found with service automatically with the recognition of devices of digital high-definition television: household PC is connected with receiving device with corresponding sending ending equipment respectively with digital high-definition television, transmitting terminal and receiving device are each other by device id number identification, and can finish protocol negotiation and service discovery automatically, even under multiple devices and interference environment, also can operate as normal.
3, the transmission of VGA/ audio frequency: sending ending equipment is divided into two the VGA/ audio signal of household PC output, and one group of VGA/ audio signal is distributed to the computer monitor and the multimedia loudspeaker box use of near-end; Another group VGA/ audio signal is through processing such as coding, amplifications, transfer to far-end (the general distance that connects is in 100 meters) by the wire/wireless mode, the VGA/ audio signal is decoded, compensated and processing such as distribution by receiving device, output to the VGA and the audio signal interface of digital high-definition television.
4, the transmission of interface signals such as USB, PS/2, microphone: sending ending equipment with USB, microphone, PS/2 and household PC machine open/close signal encode, processing such as amplification, transfer to far-end (the general distance that connects is in 100 meters) by the wire/wireless mode, interface signals such as USB, PS/2, microphone are decoded, compensated and processing such as distribution by receiving device, at the remote local computer peripheral equipments such as keyboard, mouse, digital camera, game paddle, microphone, dedicated remote control that use, can also be at distant location ON/OFF computer.
Main application of the present invention is: the audio-video signal of household PC in the study can be outputed on the digital high-definition television in parlor or bedroom, simultaneously, can be in the parlor or the bedroom medium-long range use the computer peripheral equipments such as keyboard, mouse, digital camera, game paddle, microphone, dedicated remote control of household PC, can also be in parlor or medium-long range ON/OFF study, bedroom household PC, both satisfied house decoration requirement attractive in appearance, and reached the far distance controlled computer again, use computer and on digital high-definition television, enjoyed the purpose that IPTV serves.
Description of drawings
Fig. 1 is the recognition of devices and service automatic discovering method schematic diagram of household PC of the present invention and digital high-definition television.
Fig. 2 is a VGA/ audio signal transmission method schematic diagram of the present invention.
Fig. 3 is interface signal transmission method schematic diagrames such as USB of the present invention, PS/2, microphone.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and example.
1, as shown in Figure 1, household PC is connected with receiving device with corresponding sending ending equipment respectively with digital high-definition television, transmitting terminal and receiving device are each other by device id number identification, each equipment has unique ID number, adopt 32 codings, even under multiple devices and interference environment, also can operate as normal.Simultaneously, the network architecture is the P2P pattern, and unconventional C/S model supports the point-to-point of equity to connect.Service requester (being generally receiving device) needs certain when service, at first determines the type of its service, then, sends protocol package and communicates with a plurality of ISPs (being generally sending ending equipment) on every side, finishes processes such as protocol handshake and protocol negotiation.After communication was set up, a plurality of ISPs' service interface was determined situations such as its system capability and load around the service requester inquiry, selects one of them suitable ISP, sends service request to it, and accepts the service that it provides.According to practical situations, bottom-layer network can adopt the procotol and the physical medium of present various maturations, as twisted-pair feeder, Wi-Fi, UWB etc.
2, as shown in Figure 2, sending ending equipment is divided into two the VGA/ audio signal of household PC output, one group of VGA/ audio signal is distributed to the computer monitor and the multimedia loudspeaker box of near-end, when guaranteeing long-range use household PC, household PC also can be used as usual in this locality, real " dual-use " of realizing household PC satisfies multipurpose requirements such as household PC office, amusement, and can reduce the expenditure that repeats of family widely.Simultaneously, to processing such as another group VGA/ coding audio signal, amplifications, coding adopts special-purpose coded format, problems such as the interference of emphasis solution signal transmission, decay, time delay, to guarantee brightness, color and the real-time of VGA signal, then, transfer to far-end (the general distance that connects is in 100 meters) by the wire/wireless mode, the VGA/ audio signal is decoded, compensated and processing such as distribution by receiving device, output to the VGA and the audio signal interface of digital high-definition television.Wherein,, can adopt the wired mode of twisted-pair feeder to transmit, neither destroy the existing finishing environment of family, can guarantee signal transmission quality again and obtain the high product cost performance for the family that finishes comprehensive wiring; For the family that does not carry out comprehensive wiring, can adopt the transmission of Wi-Fi and UWB wireless mode, system is flexible, and is easy to use.
3, as shown in Figure 3, sending ending equipment is to USB, microphone, PS/2 and household PC machine open/close signal are encoded, processing such as amplification, coding adopts special-purpose coded format, emphasis solves the interference of signal transmission, decay, problems such as time delay, the bandwidth and the rate request of principal security USB 2.0 signals, transfer to far-end (the general distance that connects is in 100 meters) by the wire/wireless mode, by receiving device to USB, PS/2, interface signals such as microphone are decoded, processing such as compensation and distribution, at the remote local keyboard that uses, mouse, digital camera, game paddle, microphone, computer peripheral equipments such as dedicated remote control can also be at distant location ON/OFF computer.Wherein,, can adopt the wired mode of twisted-pair feeder to transmit, neither destroy the existing finishing environment of family, can guarantee signal transmission quality again and obtain the high product cost performance for the family that finishes comprehensive wiring; For the family that does not carry out comprehensive wiring, can adopt the transmission of Wi-Fi and UWB wireless mode, system is flexible, and is easy to use.
In order to bring into play function of the present invention and feature performance benefit, the present invention can adopt ways of realization such as control box and control panel, and can realize with the form of various combinations, organically combines with the house decoration environment, satisfy dissimilar domestic consumers' demand, enlarge user's coverage rate of product effectively.All this functions of realization, digital TV in high resolution and the household PC interconnecting method of possess this function the corresponding interface, realizing by forms such as control box and control panels all should comprise within the scope of the invention.