Satellite Receiver & Exchanges
act to statistically analyze and receive /exchange the 90
ports digital satellite TS signal, then multiplex as 15 ports
ASI outputs to core server.
Network Media Server function as a professional 8 ports
mpeg2/4, Full D1 real-time hardware encoders/decoders for 8
local TV program with AV/DV inputs, itís SDH
fiber port (STM-1) is as for input of the province programs
stream. The Gigabit Ethernet port of net media server is used
to output the compressed programs streaming with MPEG-2/4
format to core server through LAN/WAN. It support TCP/IP and
RTP/RTCP protocol, accord with SNMP V3 and realize
long-distance network administration.
2 Core Servers
act as main equipments of the DVB (Digital Video Broadcasting
) Head-End System, input 15 ASI CHs from 5 Digital Satellite
Receiver & Exchanges,
2 Gigabit Ethernets with ICP/IP, RTP/RTCP protocol from
Network Media Server and the SAN witch acts as huge programs
storage in MPEG-2/4 and data broadcasting format.
The Core Server
real-time multiplex all inputs and broadcast 96 Digital TV CHs
to HFC (hybrid Fiber Coax-cable) network through mixers, and
can transport the programs to backbone SDH network. The
operator can manage and control Core Server through internet.
In this DVB architecture, the Core
Servers act as core equipments, for collecting the
satellite TV program, the DTV program transported from SDH,
local TV program, and others from internet. According to
operator management, all the informationís and programs in
MPEG2/MPEG4 format can be stored in disk or broadcasted to HFC
with MHP (Multimedia Home
Platform) requirement. A QAM (Quadrature
Amplitude Modulation) module is embedded in the core server,
for multiplexing TS (Transport Stream), broadcasting to HFC
through mixers, then transporting to every DTV user. The ASI
(Asynchronous Serial Interface) stream can be transformed to
DS3 format, transporting through SDH backbone.
Subscriber Management System (SMS)
is an indispensable and crucial system in digital TV business,
which plays very important role for DTV service provider to
manage DTV platform, and helps them developing the DTV market.
Based on the long-term experience of offering solutions for
service provider, our SMS not only provides the management of
subscriber and charging, but also take the idea of management
and the manner of service throughout the software. Besides
fully considering of technical factors, SMS involves many
factors such as management, service, market promotion,
consumer service etc. It is in possession of advancement,
flexibility, openness, credibility and efficiency platform,
and can support digital TV service provider increasing the
profit through digital TV service.
The system supports
local TV operators to supplying MHP data broadcasting service
with HTML4.0 format. With the platform of MHP, data
broadcasting streaming and the web page can be packaged in TS
format and broadcasted by the Core Server.