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It is required to have the functions of music bells for class and regular campus radio, such as radio gymnastics, automatic exercise of eye exercises, radio announcements, radio to find people, public areas and outdoor playgrounds to broadcast campus news and other radio programs.
The requirements can be used for foreign language listening teaching and examinations, and to achieve different grades can play different programs at the same time, the function must also be point-to-point addressable control, which is convenient for individual class exams.
Due to the need for foreign language listening training and examinations, the sound quality requirements for broadcasting are also relatively high, requiring clear, deep voices without background noise. And when the school holds important examinations, such as the high school entrance examination, the broadcast system can achieve double-insurance backup broadcasts.
At present, most school classrooms have installed projectors and use multimedia network terminals and notebooks to teach. This requires that classroom broadcast speakers should also have on-site sound reinforcement functions, and can achieve local listening selection, volume control and other functions.
Because junior and senior high schools have different work schedules and different requirements for playing content, this requires that the two parts can be controlled separately or be broadcast uniformly. Different grade offices can broadcast to the corresponding class, that is, the system can authorize multiple sub-control workstations. For example, when the parent meeting is held in grade, the management teacher can realize the sub-control broadcasting in the office.
Schools with branch campuses also require that the broadcast systems of the main campus and branch campuses can be managed in a unified manner or can be controlled separately.
Some schools demand that campus broadcasting can realize remote telephone broadcasting, and can be linked with the fire fighting system to realize emergency fire broadcasting.
Scheme design In view of the above requirements, the best design scheme is used to reflect the highest performance-price ratio, so that the system's functions and indicators can reach the advanced level of the same type of system in China. It is recommended that schools design and use IP network broadcasting systems. First of all, the program capacity can fully meet the requirements of middle schools for the simultaneous transmission of multiple programs. In addition, in terms of sound quality, the network broadcast is distortion-free and can be transmitted in stereo. Make sure the sound is clear and smooth in the listening test.
The IP network broadcast system has good scalability. As long as the campus network can cover the broadcast information point, it is easy to deploy the broadcast information point, and the configuration of different IP network broadcast terminals can easily achieve point-to-point broadcast. All networked computers in the campus network can be used as sub-control workstations of the broadcasting system upon authorization. The system is designed with an IP network alarm host, which can expand the number of fire control channels at will, fire signal network transmission, and set alarms at any point; the system is equipped with an IP network local telephone access host, which integrates the telephone system and the broadcast system to achieve remote telephone broadcasting.
IP network broadcasting system, using modern computer software engineering, TCP / IP network, automatic control, voice codec and other information technologies to promote the integration of multiple networks, make full use of the campus network through software settings can be unified and centralized system control management throughout the school In addition, each area has independent control and management, which can meet flexible zoning and grouping without additional wiring. Reduce construction projects, simple and fast.
System front-end audio source design The campus audio system audio source includes digital audio source and analog audio source. The system mainly uses computer (system server host), high-quality DVD player, touch-type dual deck, digital tuner, broadcast microphone, wireless microphone, etc.
The overall control design of the system is the campus IP network broadcast system. In terms of intelligent control, we use the broadcast server host + server management software, which can control the IP network broadcast terminal (including IP network speakers, IP network backup terminal, IP network broadcast rack Type terminal, IP network broadcast paging terminal, etc.), can also control the IP network power amplifier or the IP network broadcast terminal connected to the constant pressure broadcast equipment (constant pressure amplifier + speaker) to achieve the control of the constant pressure broadcast equipment in public areas. The classroom part adopts wall-mounted IP network speakers, or wall-mounted IP network broadcast (on-demand + backup) terminals + speakers to achieve classroom live sound reinforcement, and can realize local listening selection, volume control, backup broadcast and other functions, and other public parts are designed Broadcast for partitions. IP network broadcast can be controlled to broadcast to every point; constant pressure broadcast can be controlled to broadcast to every area, different control methods are relatively independent and do not interfere with each other.
System features
? Personalized scheduled playback, automatic music ringing, scheduled broadcast management
? Play different broadcast content in different areas at the same time
? Free combination of broadcasting in each area
? Emergency alarm, broadcast notification of emergencies
? Backup broadcast
? Permission settings
? Broadcast monitoring
? Radio broadcast
? Real-time audio broadcast
? Independent control playback function
? Can set up multiple sub-control workstations
System topology
Middle school IP network broadcasting system solution 01
Overview and Needs Middle schools are generally in the third to sixth grades (including junior high school and high school). The basic requirements for the broadcasting system are as follows: