Tag: STB HFC
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Digital TV not only brings people rich programs, information, entertainment, but also brings people personalized and interactive enjoyment. If the overall translational transition mode is adopted to develop digital TV, the digital information terminal of the set-top box is built in thousands of households, which is to establish an information platform that covers the whole society, where e-government, e-commerce, online education, and network medical treatment can be carried out. Internet banking, etc., will greatly improve the overall social economy, cultural level, information level, benefit the country and the people, is an objective requirement for accelerating the development of radio and television and information industry, and better meet the growing spiritual and cultural needs of the people. An important measure to build a harmonious socialist society. In order to speed up the digitalization process of radio and television and promote the rapid development of radio and television industry, this paper proposes a county-level cable digital TV overall conversion plan for your reference, and hopes to criticize and correct.
Overall conversion goal
Establish county-level cable digital TV system to realize the conversion of urban and rural cable TV users from analog TV to digital TV, so that they can enjoy more than 52 sets of standard definition digital TV programs, more than 6 sets of high-quality data audio and audio broadcasts, government information, Stock information, weather information and other comprehensive professional, personalized and diversified information services.
Principle of overall conversion
The basic principles for the overall conversion of cable digital TV can be followed: 1 “Government promotion, market operation, overall conversion, integrated network, radio and television, social participationâ€; 2 “two total two points†to establish a general front end in the province, each city and state established According to the integration of network resources, the head office of the whole province is established, and the branches of each city and state are established; 3 “One exemption and one increaseâ€: Free set-top boxes for cable TV users in the county, and appropriate increase of TV users' viewing and maintenance fees.
Steps for overall conversion
The first step: establish a county-level cable digital TV system, realize 1 to 3 sets of video and 1 digital audio and video broadcast of the broadcast TV station, and accelerate the integration of the HFC network. Step 2: Under the care and support of the government and all walks of life, implement the overall conversion of cable digital TV with a dot-to-face approach.
1. Construction of county-level cable digital TV system.
(1) Cable digital TV county-level sub-front
The main task of the cable digital TV county-level sub-front is to be responsible for the production/sending of digital local programs, and the management of local network users. The following issues should be noted in the construction: First, the problem of maximizing benefits. Benefits are money, life. Under the national digital TV technology system, it is necessary to do things according to local conditions, to do things at the right time, to spend the least money to do the best things, and to maximize profits. In 2004, our county cooperated with the provincial digital TV company to open a cable digital TV. If the platform is still used during the overall conversion, it will reduce equipment and capital investment, such as QAM modulator. The percentage of paid professional channels and value-added application services can also be increased. The second is the issue of independent operation management. Establish a user management subsystem to implement relative independent operation management rights for local network users. In order to ensure the fairness and fairness of the provincial, city and county settlements, the provincial, municipal and county user management systems must be compatible and interconnected with the provincial regulatory platform. The third is the insertion of local programs. The local programs at the county level can be inserted locally according to the unified spectrum plan of the service platform. The EPG of the provincial or municipal platform reserves "local 1", "local 2", and "local 3" for the user to receive. The composition diagram of the county-level practical cable digital TV front-end system is as follows.
The SDH backbone network program sent by the service platform is converted into the DVB-C format ASI signal stream by the DS3/DVB-C adapter; modulated by the QAM modulator and sent to the local HFC network, and the local program is transmitted by the MPEG-2 encoder, and the transport stream is transmitted. The multiplexer then modulates the hybrid playout for the user to receive. The user management system of the county-level sub-front-end system adopts a relatively independent multi-level authorized user management system. The service platform is responsible for scrambling programs and establishing a user management system. Each county-level sub-front can establish a user management subsystem through the SDH backbone network or The IP network establishes a return channel, logs in to the remote authorization server of the main front end, and manages the local network digital TV users.
(2) Network system
In order to enable cable TV users to conveniently and quickly view digital TV programs and enjoy the infinite excitement brought by digital TV, it is necessary to speed up the transformation of HFC networks, speed up the networking of county and township optical cables, and gradually make HFC networks become two-way, distributed HFC networks.
(3) User terminal
A digital set top box (STB) is both a user terminal and a network terminal. Using cable TV network as the transmission platform and TV as the user terminal, STB can make analog TV from passive receiving analog TV to interactive digital TV, enabling users to enjoy all-round information services such as digital TV and data broadcasting. Considering the reality of the network, from the perspective of operation, STB can be divided into two types in actual promotion. Basic: View digital TV, implement pay TV function, support EPG, data broadcasting, stock analysis; Enhanced: support middleware, software upgrade, program download, TV modem (Modem), cable modem (CableModem) or Ethernet Interface, can carry out interactive TV business and Internet business.
2. Implement an overall conversion strategy with a point-to-face approach
(1) Divisional grading advancement
First select the pilots with mature conditions, and then gradually promote them; The specific method is to configure a set-top box (including a smart card) for each user of the last-level optical node by using the last-level optical node as a unit, and let the user receive the digital TV program content through the set-top box, and close the deadline. The analog signal of the node realizes the digital conversion of the optical cable of the optical node, and so on. When all the optical nodes turn off the analog signal, the entire cable television network realizes the digital overall conversion. The digital TV community should be built in one step for the newly built and under construction communities and buildings.
(2) Classification for different users
The conversion method of the registered resident users: the radio and television department freely configures one set-top box (including smart card), the first TV set, the second TV set, the third TV set, etc. of the same household, and receives the basic viewing according to local standards. Fees; if the user voluntarily purchases the set-top box and smart card, the charging standard can be reduced by 20% according to the standard of freely configuring a set-top box (including smart card) by the radio and television department.
The conversion method for registered non-resident users: non-operating group users such as government agencies, military units, schools, non-profit hospitals, etc. Each TV set is charged according to the first set-top box standard of the resident family; the operating group users can follow the higher than ordinary Residents negotiated the billing with the first TV set to maintain the maintenance standard by 20%.
The conversion mode of the cable TV installer: the installation fee is not charged for the current registered analog TV users during the whole conversion period; the installation fee for the local standard is charged for the non-registered users and the newly installed users.
The conversion method of the arrears user: after the payment of the arrears, the conversion is based on the registered user.
Specially poor households, low-income households, etc. are converted according to policy preferences.
After the implementation of the overall conversion, the old Red Army, the widows of the old Red Army, the families with disabilities as the main body, the special destitute households receiving the minimum living allowance, and the families with social pensioners, etc., can be exempted from the cable by the relevant documents of the civil affairs department and other relevant documents. Digital TV basically receives maintenance fees.
3 digital mode and transmission: the area where the overall conversion of cable digital TV is implemented. After the conversion user has mastered the digital TV viewing mode, most of the analog programs will be stopped in the region within 3 months. Only CCTV-1 and the provinces will be retained until 2015. 6 sets of satellite TV, city comprehensive channel, and county comprehensive channel. For users who are unwilling to switch overall, they can charge a basic viewing maintenance fee of 8 yuan/month before 2015.
4 set-top box market sales method: the basic set-top box is provided by the radio and television department, non-human damage, the radio and television department is responsible for the warranty for two years, the price is approved by the price department and the maximum price is imposed, the basic set-top box can be set to 450 yuan per unit, smart card 50 yuan. The enhanced set top box is purchased by the user and the market price is adjusted.
Overall conversion safeguards
1. The government promotes
In 2005, our county opened a cable digital TV and transmitted 72 sets of programs of the provincial cable digital TV company. The market operation mode has been adopted, and the user development is slow. Up to now, there are only a few hundred users. Therefore, in order to complete the overall conversion of the cable digital TV in the county. Work must be strongly supported by the government. The county party committee and county government should set up a leading group for the overall transformation and promotion of cable digital TV, responsible for leading and comprehensively coordinating the overall conversion work. The county radio and television bureau, the relevant townships and towns should set up an overall conversion working group to implement each work of the overall transformation.
2. Policy support
In light of the actual situation in the local area, it is recommended that the county party committee and the county government include the overall conversion of cable digital TV into the key construction projects of the year. The overall conversion of cable digital TV has a large workload and involves a wide range of management departments. It is recommended that the government provide support in various management policies, such as: supervising the construction and planning departments to formulate regulations: the new residential buildings should be in accordance with digital standards. Planning and building a wired network, prompting developers to improve the corresponding pipeline and other infrastructure.
3. Financial support
The cable TV digital conversion project has a large investment. The county level generally needs nearly 25 million construction funds. The huge funding gap needs financial, banking and other departments to support, such as: additional radio and television construction funds, interest-free loans, bank loans, etc. At the same time, the project has a wide range of influences and strong industrial linkages. It is necessary to make full use of external resources to form a joint force and jointly promote, and actively expand financing channels, such as: personal capital shares, set-top box business financing. Under the premise of insisting that radio and television is the mouthpiece and public welfare undertaking of the party and the government, according to the characteristics of market development, it will be promoted according to certain market rules and market operation methods.
4. Publicity guarantee
Establish a digital TV publicity work system, strengthen the positive publicity and guidance of digital TV and overall conversion, popularize digital TV knowledge, guide the audience's consumption concept, and make the community and the masses fully understand the advantages and characteristics of digital TV, understand the digitalization, accept Digitalization creates a good external environment and public opinion atmosphere for digital development.
5. Technical support and service guarantee
Establish a digital TV technology service work system. During the overall conversion process, strictly implement the technical policies and standards for digital broadcasting and television, strictly use the systems, equipment and equipment with network access certification, and coordinate with the provinces and cities to accelerate the establishment of user management, operation and maintenance, and settlement. With the electronic payment system, we will speed up the construction of a cable digital TV maintenance team with advanced technology, strong style, sense of responsibility and good dedication, ensuring efficient and high-quality development of the overall conversion work.
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