Conference System - part two

[ali hassan]

http://alihassanelashmawy.blogspot.com/2011/12/conference-system-part-two.html


Partially Open Conference Systems:
This System Is Suitable For Conferences with a Limited Number of
Delegates to Speech Each Other but Under the Control of the
Conference's Chairman.

The Sound Systems Permits Every Delegate To Speech To Other Delegates
And Chairman Under The Control Of The Chairman So That The Chairman
Can Switch Off The Speech Circuits Of The Talked Delegate And Other
Delegates And Activate His Speech Circuit By switching On A Priority
Button On His Unit.

Types of partially open Conference Systems:

1- without internal and external broadcasting:
In This Case Delegate Unit Contains:
Microphone
Talk Button
Internal loud speaker

And Chairman Unit Contains:
Microphone
Talk Button
Priority button
Internal loud speaker

2- With internal and external broadcasting:
In this type, the external broadcasting is provided by adding a remote
loud speaker to different remote locations while the internal
broadcasting is done by using one of the following methods:
The addition of Side Sound Columns in the conference Hall (see fig.5)
and in this case Delegate Unit Contains only the Microphone and Talk
Button And Chairman unit contain only the Microphone , Talk Button and
Priority button.
Or Providing the Delegates and Chairman Units with an Internal Speaker
(Recommended) as in type #1.


Controlled Conference Systems:
This System Is Suitable For Conferences With A Large Number Of
Delegates To Speech Each Other But Under The Full Control Of The
Conference's Chairman.

This System Is Used When Speech Between Delegates Is Not Desired So In
This System The Chairman Has A Control Panel (Permission Keys) Which
Contains A Large Number Of Push Buttons And Lamps According To Max.
Number of the Conference Hall Seats.
And If Any Delegate Wants To Speech He Will switch On A request Button
In His Unit Hence, His Lamp in The Chairman's Control Panel Switch On
Then The Chairman switch On The permission Button (which is below the
lamp) Of This Delegate So, The Delegate Can Talk To Others Until The
Chairman switch off The Button Again To Switch Off The Speech Circuit
Of This Delegate.

Types of Controlled Conference Systems:
1- without internal and external broadcasting: (see fig.)
In This system we can monitor the conference by providing the
Delegates and Chairman Units with an Internal Speaker.

In This Case Delegate Unit Contains:
Microphone
Request Button.
Internal speaker.

And Chairman Unit Contains:
Microphone
Permission keys control panel.
Internal speaker.

2- With internal and external broadcasting:
In this type, the external broadcasting is provided by adding a remote
loud speaker to different remote locations while the internal
broadcasting is done by using one of the following methods:
The addition of Side Sound Columns in the conference Hall and in this
case Delegate Unit Contains only the Microphone , and Request button
And Chairman unit contain only the Microphone , Permission keys
control panel.
Or Providing the Delegates and Chairman Units with an Internal Speaker
(Recommended) as in type #1. (see fig.)

Notes:
It can be useful to use one or more recorder to record the events of
the conference.
Delegates units may be connected all in series or each row is
connected in series then the rows are connected to the power amplifier
separately.

http://alihassanelashmawy.blogspot.com/2011/12/conference-system-part-two.html