1. Introduction
The horn of building a new socialist countryside has been heard all over the country. As the main force of construction, farmers will face real problems such as large policy adjustments, fast knowledge updates, and high work requirements. In particular, with the continuous deepening of the reform of the rural system and the high-level advancement of comprehensive agricultural development, higher demands have been placed on farmers ’subjective consciousness, scientific planting, scientific breeding, unimpeded information, and legal concepts, and farmers’ understanding of policies and regulations And the desire for technology culture is more urgent. In order to actively promote the construction of a new socialist countryside and unify the development of rural spiritual life and economic development, it is necessary to build a village broadcasting system.
2. Design principles
The system is designed based on the principle of unity of "advancedness, scientificity, stability and economy".
Advanced: The system adopts the network transmission method, and the independent development technology has powerfully solved the problem of balanced long-distance transmission of low-cost network audio signals, and can achieve the playback sound quality effect, without interference and crosstalk. The operation is simple. The use of network communication technology to establish a new and complete ip network broadcast system. We have constructed a new generation of broadcasting system with a brand-new concept, which has radiated infinite vitality which is unmatched by any traditional broadcasting system. The software is powerful and practical. The analog signal transmission method has the problems of large distortion, narrow frequency band, and low signal-to-noise ratio. The use of digital signal transmission has no damage to the sound quality due to transmission problems, and can reproduce high-quality sound source signals at the terminal.
Scientificity: The system design is scientific and reliable. It can be used in the LAN of the same network segment, the LAN of cross-gateways or the Internet through the Ethernet network technology. Stable and reliable network broadcast directly depends on the perfect performance of the combination of software and hardware of the network server and network adapter; in addition, the system guarantees strong maintainability and at the same time has sufficient scalability.
Stability: Because the system uses the IP digital network broadcasting method, a large number of wiring systems are eliminated, so the line system failure phenomenon caused by the line failure that may occur in the broadcasting system is eliminated;
Economical: The system is easy to maintain, simple in structure, concise in layout, and economical in the broadcasting system, and can save a lot of transmission wire and line laying costs during the construction period.
Three, realize the function
1 Automatic broadcast: Fully automatic unattended broadcast program broadcast;
2 Unified broadcasting: Centralized unified broadcasting for all towns;
3 Ding Village Broadcasting: The administrative villages can be grouped at will, and one or a group of administrative villages can be designated to listen to the broadcast;
4 Emergency broadcasting: Emergency broadcasting can be carried out for any administrative village or all administrative villages to notify emergency matters.
5 Emergency broadcasting: In case of floods, earthquakes or other disasters, emergency command broadcasting can be conducted to any administrative village or all administrative villages;
6 Township-level insertion: support rural secondary broadcasting, that is, township-level insertion, in order to manage broadcasting at the township level;
7 Village-level insertion: support rural three-level broadcasting, that is, village-level insertion to facilitate village affairs management;
8 Popular science broadcasting: scientific knowledge about scientific breeding, scientific planting, insect prevention and disaster prevention can be promoted through this system;
9 Weather broadcasting: weather forecast broadcasting can be carried out to enable farmers to choose farming according to the weather conditions;
10 Policy Broadcasting: Propaganda of party and government policies can be carried out to synchronize farmers ’ideas with major policies and to increase the passion for building a new socialist countryside;
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