Preface：

Modern primary school is often in preschool education and primary school education development, with the area of campus layout structure of a large area, with teaching, office, library, playground and other buildings on campus, campus rational layout and beautiful environment characteristics. Primary school campus public broadcasting system as the primary school campus daily service of the humanized service and broadcast function and construction, the need to complete the functions to meet the diverse requirements of middle school campus, including daily background music, the background music broadcast task partition play, all-weather or period of time playing, unattended; the broadcast real-time traffic broadcast fire emergency broadcast; strong requirements, broadcasting system have high stability, comprehensive, intelligent, diversified.

Case analysis:

A primary school project covers an area of 50 acres, 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:

Partition 1 - grade 1.

District 2 - grade two.

District 3 - grade three.

District 4 - grade four.

District 5 - grade five.

District 6 - grade six.

Partition 7 - playground.

District 8 - public corridors of all grades.

Speaker point distribution list:

partition

region

10W wall speaker

60W outdoor waterproof sound column

Partition 1

Freshman class

Five

Partition 2

Class two

Five

Partition 3

Class three

Five

Partition 4

Class four

Five

Partition 5

Class five

Five

Partition 6

Class six

Five

Partition 7

Playground

Six

Partition 8

Corridors by grade

Twenty

Equipment list:

Serial number

Device name

brand

Equipment type

Number

Company

Remarks

Audio device

One

Multi function digital player

HARMAN

HM-CD32

One

platform

Play CD, VCD, DVD, MP3 audio program

Two

Digital Tuner

HARMAN

HM-FM32

One

platform

Radio show

Three

cassette

HARMAN

HM-KZ32

One

platform

Play tape

Partition device

One

10 way partition paging device

HARMAN

HM-V10P

One

platform

Paging control

Two

10 way partition matrix

HARMAN

HM-V13D

One

platform

Zoning control

Three

Preamplifier

HARMAN

HM-V11P

One

platform

Audio processing

Four

Broadcast microphone

HARMAN

HM-MI2S

One

branch

To make an artificial or temporary broadcast

Master control equipment

One

Intelligent digital MP3 host

HARMAN

HM-MP3B

One

platform

Timed play

Two

Preamplifier

HARMAN

HM-V11P

One

platform

Audio processing

Three

Alarm signal generator

HARMAN

HM-8013

One

platform

Alarm source

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-D1500

Two

platform

Push speaker

Speaker equipment

One

Wall speaker

HARMAN

HM-13

Fifty

only

Play class class bell and temporary broadcast

Two

Outdoor waterproof column

HARMAN

HM-414

Six

only

Play class class bell and temporary broadcast

Connection diagram: