IPTV and " digital TV " in prospective market competition is analysed

What the network of wired number TV adopts is HFC network system, as identical as framework of traditional system of network of imitate cable television, however if begin new-style seesaw pattern professional work (be like VOD order programme) , network system can differ somewhat, need undertakes to existing network two-way network is transformed. System of VOD of wired number TV basically includes VOD service, program to collect make up, memory reachs attestation plan to expend a system, main memory and deferent content are MPEG-2TS flows, use technology of IP Over DWDM, be based on DVDIP fiber-optic network to transmit. Differ with the distributed framework of IPTV, what system of VOD of wired number TV uses is the service framework of collect Chinese style, in HFC cent front does not need configuration to be used at content memory and the video server that distribute, need to set the facility such as DWDM receiver and GAM modulation only can, the operation cost that reduced a system greatly and management are intricate degree, user terminal is box of digital machine top television.

Pass notional definition and description of construction of system, the technology that can see both place is used is different, network of wired number TV two-way after transforming, besides having traditional broadcasting television to serve, still can provide professional work of two-way and seesaw pattern (like VOD order programme, when move the function such as TV and network kinescope) , and the network is transformed purpose and income source are sure is to be aimed at " appreciation " business, because this will naturally is opposite,the progress of IPTV business produces tremendous effect. Face competition, business of operation of firm network telecommunication besides should mix in the have the initiative on consultative standard outside reducing operation cost, be discussed in what each link make development even and carry out, because the technology is the method of both competition only, if why handle all sorts of issues of catenary of value of good professional work,just be competitive focus and key.

If the graph is shown 1 times, although both use technology is different, but they have an identical operation to organize a structure, that is to say, system of client, operation and business / content provider is the 3 element that they compete, below just will face from these a few IPTV and " digital TV " competition does brief analysis.

Graph 1 　 IPTV and " digital TV " identical operation organizes a structure

3, cause client

Have some of investigator hypothesis, if 400 million much TV of countrywide is protected,have an user 20% can user of translate into IPTV, give 8 000 with respect to meeting creation the user market dimensions of 10 thousand. The author thinks such hypothesis lacks scientific sex, the consumptive ability that the reason is existing TV user has very big difference, this kind of simple hypothesis lacks pair of cause clients group analysis.
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