The classroom end of this system is a multi-channel addressable FM broadcast system; all other public areas use FM to constant voltage transmission to achieve the background music and daily affairs broadcast and reserve the fire broadcast interface. The sub-control department needs to be equipped with a sub-control system; the playground is equipped with a remote wireless broadcast control system. Partition Design: Each building is partitioned according to a single building, the outdoor playground is partitioned separately, and the volume of each partition is centrally managed by the central control computer room. All partitions can be freely combined to set up groups to achieve decentralized and centralized control. The system is designed with multiple sets of audio sources, and different audio sources can be broadcast simultaneously for different partitions or combination of partitions. Terminal design: Baby Diaper Bags are becoming more and more popular as regular items for babies and parents. Whether it is a long-distance travel or a short trip, the Mummy Bag provides important convenience for babies and parents. The popularity of mommy bags has caused new parents to pay attention to infant travel, not only psychologically but also physical changes, have great significance. Baby Nappy Bag,Diaper Bags,Multifunctional Baby Diaper Bags,Portable Bag For Baby JOYBABIES PRODUCT CO.,LTD. , https://www.my-joybabies.com
There are a total of 40 classrooms on the 4th floor of a building of the main teaching building, and each floor is 70 meters long;
There are 4 multi-functional classrooms and 10 offices in a building on the 2nd floor of a comprehensive building, each floor is 20 meters long;
A laboratory building with 3 floors and 10 laboratories, each floor is 40 meters long; a 400 square meter auditorium;
2 dormitory buildings with 3 floors each, each floor 40 meters long;
1000 square meters per floor, 3 floors in a canteen;
One outdoor playground with a standard 400-meter runway.
Now the school needs to build a campus intelligent broadcasting system to meet the needs of education and teaching, the specific requirements are as follows:
The school requires the broadcasting system to be divided into 6 parts: teaching area, corridor area, dormitory area, canteen area, auditorium area and playground area. The system can realize individual broadcasting for each area, and can also realize combined broadcasting of several areas or whole broadcasting. It can realize the automatic playing of frequently used music such as music ring tones in class.
All ordinary classrooms, multi-functional classrooms, and laboratories can independently control the volume of the terminal FM speaker and can achieve point-to-point broadcasting. The speakers in the classroom can realize stereo broadcasting, and the classroom can choose to listen to the digital sound source program designed in the main control room. Each grade group requires an independent program.
The system requires that it can automatically play 4 sets of computer audio programs and manually play several sets of analog audio source programs (DVD player, deck, digital tuner, conference / wireless microphone, etc.).
The Educational Administration Office and Sports Group use the auxiliary control system. Each auxiliary control point can broadcast the public teaching area, playground area, corridor area, etc. individually or in combination. The control requirements are easy to operate.
It is required that the system can realize remote broadcast control of the playground, and can remotely control the playback, pause, fast forward and rewind of music such as radio gymnastics and national anthem in the broadcast room computer on the playground.
The system construction is required to be based on the principles of mature technology, stable operation, good effect, economy and practicality, and easy upgrade.
Scheme design control design:
According to the needs of the school, considering the possible expansion of the school and other factors, the school's broadcasting system is designed as a comprehensive campus intelligent broadcasting system based on the principles of science, economy, practicality, and application. The broadcast mode addresses FM broadcast and constant pressure broadcast. In terms of intelligent control, we use a control host and a set of control software, which can control both addressable FM broadcast and constant pressure broadcast. Addressable FM broadcast can be controlled to broadcast to every point, it can play multiple sets of programs at the same time, and users at the broadcast receiving end can choose to listen to different programs according to their needs, we call it addressable FM control. Constant pressure broadcast can control the broadcast to every area, we call it partition control. Different control methods are relatively independent and do not interfere with each other.
System features: unattended automatic playback, pre-arranged playlist, loop function, large playback capacity, multiple file formats, playback identifier, temporary broadcast partition control, power management control, multi-channel stereo playback, multi-channel digital playback authorization management, regular playback, fixed-point broadcast Channel receiving Channel setting Flexible remote control LED frequency display PLL phase locked loop frequency stabilization
System topology
Middle school campus addressable FM broadcasting system solution 01
Overview and Demand of a middle school in a city, the school is as follows: