Preface：

The increasing development of intelligent campus broadcasting system according to the requirements of the new school broadcasting system, the whole system in line with advanced design, stability, practicability, economy, compatibility, flexibility, reliability and practicability of the background music (public emergency broadcast system). The school has become one of the indispensable infrastructure of the weak current system, and the intelligent campus broadcasting system is still used by the schools for its practicality, economy and convenience. All kinds of schools in our country basically use intelligent public school broadcasting system. According to the school of different domains, different broadcast function requirements, design different broadcast implementations, the last broadcast control room by the main control simple operation platform, according to the different needs of schools in various regions, broadcast each time.

user demand

A school with a total area of 300*500. Divided into 3 years. The public broadcasting system is required to meet the needs of school teaching. Among them, the principal can achieve the control of the school in the office.

Case analysis:

A middle school project with a total area of 300*500, need to install wall speakers in each classroom, to play on the school bell, all-weather or period of time playing, unattended, broadcast notification, listening to the news on the radio, fire emergency strong etc.. The broadcast center is located in the broadcasting room.

Functional requirements:

1): the system needs to play music all day or time:

Above the bell, broadcast gymnastics, eye exercises, etc..

(2) a manual or temporary broadcast:

If the hearing test, the leadership meeting.

Broadcast partition:

District 1 - grade 1.

District 2 - grade two.

District 3 - grade three.

Partition 4 - playground.

District 5 - public corridors of all grades.

Section 6 - student dormitory.

Speaker point distribution list:

partition

region

10W wall speaker

60W outdoor waterproof sound column

Partition 1

First grade class

Twelve

Partition 2

Grade two class

Twelve

Partition 3

Grade three class

Twelve

Partition 4

Playground

Ten

Partition 5

Corridors by grade

Twenty

Partition 6

Student dormitory

Twenty

Equipment list:

Serial number

Device name

brand

Equipment type

Number

Company

Remarks

Audio device

One

Controlled multifunctional digital player

HARMAN

HM-CD82

One

platform

Play CD, VCD, DVD, MP3 audio program

Two

Controlled digital tuner

HARMAN

HM-FM82

One

platform

Radio show

Three

cassette

HARMAN

HM-KZ32

One

platform

Play tape

Master control equipment

One

Computer centralized intelligent broadcasting center

HARMAN

HM-8800

One

platform

Central control host

Two

Intelligent central controller

HARMAN

HM-8300

One

platform

Multi tone signal distribution

Three

Preamplifier

HARMAN

HM-V28H

One

platform

Audio processing

Four

Alarm signal generator

HARMAN

HM-8013

One

platform

Alarm source

Five

Broadcast microphone

HARMAN

HM-MI2S

One

branch

To make an artificial or temporary broadcast

Six

Partition microphone pager

HARMAN

HM-8010

One

platform

Partition paging control

Seven

Remote paging microphone

HARMAN

HM-8009

One

platform

To make an artificial or temporary broadcast

Power management equipment

One

16 channel controlled power manager

HARMAN

HM-V26S

One

platform

Timing opening device

Power amplifier equipment

One

Pure power amplifier

HARMAN

HM-D240

Three

platform

Push speaker

Two

Pure power amplifier

HARMAN

HM-D360

Two

platform

Push speaker

Three

Pure power amplifier

HARMAN

HM-D1000

One

platform

Push speaker

Speaker equipment

One

Wall speaker

HARMAN

HM-13

Seventy-six

only

Play class class bell and temporary broadcast

Two

Outdoor waterproof column

HARMAN

HM-414

Ten

only

Play class class bell and temporary broadcast

Connection diagram: