Campus addressable constant pressure broadcasting system solution

Customer requirements:
There are 30 classes in our school to establish a broadcasting system, the specific requirements are as follows:
1. Music ringtones, automatic play, news and background music can be played during breaks.
2. One speaker is installed in each classroom, and it is required to broadcast to each classroom individually and broadcast notifications.
3. When the classroom of each grade is adjusted, any combination of grades or several classes can be broadcast.
Please design a plan and list the equipment.
demand analysis:
1. The system uses a constant pressure broadcasting system, and the front end is equipped with an automatic broadcast control system to realize the function of an intelligent broadcasting system.
2. It is required that each classroom can be broadcast individually, or any combination can be broadcast to one grade or several classes, that is, the system is required to implement addressable broadcasting, and an addressable broadcasting controller should be installed on each classroom side. The addressable function is realized under the control of the control system.
3. Each classroom is equipped with a 3W-6W speaker, the total power of 30 classrooms is 180W, and a 250W power amplifier is required at the front end.
Main functions of the system:
Auto-play function --- the system can automatically play radio exercises, eye exercises, national anthem, athlete march, preparatory music bell, class music bell, class music bell, wake-up number, etc. through the auto-play software according to the schedule set by the school News, English teaching programs and other optional radio music and programs in schools.
Scheduled playlists --- According to the teaching and management needs of the school, the system can schedule one-day and one-week playlists. The daily playlists can be set arbitrarily, and are not restricted by the time period and length of time. , After the computer is turned on every day, the system will automatically judge the day of the week, and then automatically play according to the arranged playlist. Playlists can be stored, modified, and edited.
Weekly cycle function --- After scheduling a week's play schedule, it can be played throughout the year without resetting every week.
Large playback capacity-can store thousands of ringtone music, various radio exercises, eye exercises, classroom music, various language teaching, English teaching programs, etc. in the computer to form a sound file material library for editing When you select a playlist, you can also play audio files on the disc.
Play a variety of file formats --- computer broadcast system can play WAV, MID, WMF, MP3 and other audio file formats, while supporting CD disk to play a variety of music and language teaching programs.
Set Play Identifier --- Various play identifiers can be set according to the content of the play, such as class bell, class bell, class operation, etc., wake-up number, etc., to facilitate the identification of the playback content and playback file calls.
Play Temporary Broadcasting --- If the school has temporary broadcast content to be played, it can end the automatic playback state at any time and enter the manual playback state for playback.
Unattended --- The broadcast control host (computer) can automatically switch on and off, automatically identify the day of the week after turning on every day, and then call the playlist of the day to automatically play to achieve unattended.
Spot broadcast
The system adopts computer control, which can realize authorized broadcast to any individual classroom, such as: broadcast notification.
Group broadcasting
The system can arbitrarily group broadcast all classrooms, such as English listening training for certain classes.
Free zone broadcasting
The system can arbitrarily form different areas for broadcasting. When the classrooms of each grade are changed, they can be re-zoned according to the changed classrooms.
System equipment list
Device name
Device model
Quantity
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