Industrial accidents can occur at any moment. It is
imperative that your plant have the necessary means
to notify a large number of people at a moment’s
notice. Through partnerships with several of the
industry’s leading manufacturers, Fercom Ltd can
provide that solution to you.
Tone Alert radios manufactured by Motorola can be a
great method of notification to those indoors and
can even be implemented to control strobes in high
noise areas if required. These units can seamlessly
integrate with the rest of your Fercom-Motorola
system for a single point of activation.
In the event that indoor notification is required,
Fercom Ltd manufactures the IPS (Industrial Plant
System) which is utilized to power speakers
independently or to interface into an existing
paging system to override that system for emergency
notification. Additionally, strobes can be
controlled by this system for high noise areas. This
system can be seamlessly integrated and controlled
with the outdoor warning systems for outdoor voice
notification.
Fercom can also provide instant notification. This
multimedia notification system can contact all of
your necessary personnel thru a variety of different
methods including landline telephone, cell phone,
SMS text and email. The flexibility offered by
Fercom offers you a system that can be used for any
type of emergency or non emergency situation.
Hungarian Public Early Warning System
In the recent past as well as in these days the
claim for the appropriate, fast warning in case of
residental emergency (nature-, industrial disaster)
has been significantly risen. The topmost criteria
of such a system like that is the extremely high (near
by 100%) availability, the right handling of
alarming authority, the separated alarm sectors and
the rugged construction (at least 50 years) of the
system components. Fercom Ltd has been engaged in
design, install, recontruction, repair and operate
public alarm-, and warning systems for more than 10
years. During long time like that, our professionals
has gained lots of experience, which have been
feedbacked continually to the development. For now
we have succesfully created the system what is going
to be suitable for the expectations of the next
years. Fercom Ltd’s public warning-, and alarm
systems have 4 main parts:
- Central unit
- Communication media
- Remote unit control unit
- Siren unit
Introduction of the central unit
The central unit is a normal PC which can get in
public commerce, what installed by the suitable
application. With this application the operator can
provide a simple, but particular surveillance
through the installed device speakers at the
townships. The activating of the remote unit
speakers happen by this central unit as well. The
charter and the text messages show univoque picture
from the central application. The system provide the
possibility for transmit both stored speech from the
central unit, stored speech from the remote unit,
stored signals from the remote unit as well as live
speech transmit. The application enables to select
and activate the units one by one, or any optional
section.
Thanks to the right develop of the central
application its capable to analyse the operability,
and the availability of the communication media. In
case of any kind of functional failure the
application send a warning message for the operator.
Introduction of the communication media
The link between the central unit and the RTU is
created by the communication media (hencefort CM).
The type of this CM in our proferred systems is
always suit to the requirements of the very/current/
application. Without the pretension of fullness the
Fercom would like to introduce some solutions
adapted in widespread. In these days the using of
digital media is coming to the front. Of course our
proffered systems provide the ablility for this as
well, but the most trustable, simple solution what
significantly reduce the installing, and operating
cost is the lot proven conventional radio system.
That system has a digital version which ensure the
same simple communication, but in the digital world.
In these days the IP based data communication usage
is being increased caused by the reliability and
high bandwidth. The IP based data communication
available both in wired and wireless technology. In
the selecting of CM you have to consider it’s
distinctivenesses. In some cases there is a
possibility for use GPRS based technology or can be
managed through other trunked radiosystem. In
special cases it can be use for satellite, or
microwave data transmission. In those cases where
the wired system build is possible, than many more
different way offer itself for create the connection.
For example without the pretension of fullness:
- RS232
- RS485
- Ethernet
- Telefon modem (Dial-up) – also on leased line
- Optical network
The introduction of MOSCAD ACE RTU used both
central and remote unit control
The Motorola is present on the SCADA market for more
than 30 years. Use up their huge amount of
experience on radio communication they developed
such a great reliable system which maximalize the
advanteges given by wireless communication. What
emphasize the MOSCAD system of the other companies
similiar products is the optimized data protocol for
radio communication MDLC (Motorola Data Link
Communication).
The MDLC is an extraordinarily advanced protocoll
for transmitting all type/kind of data on the
network. The protocoll has been developed by the
Motorola based on OSI modell (Open System Interface)
recommendated by the ISO (International Standard
Office). The MDLC protocoll support the 7 level OSI
modell, what adaptated for the SCADA systems. While
other protocols (for ex.: HDLC, Modbus) usually
support only the first 2 levels of the OSI standard,
the MDLC has been developed especially for radio
applications, which enables to transmit huge volume
of data between the RTU (Remote Terminal Unit) and
the central unit using advanced packet tranmission
technology. Through the fexible date frame, in the
MDLC protocoll the receiver side ask the resending
the missing or false frames only. This reduce the
air time to the minimum, because it doesn’t repeat
the correct frames.
The introduction of Remote Unit Control
One main part of the system is the speaker (siren)
RTU has been installed at endangered townships, what
provide information for the citizen about any
haphazardly happened emergency, and the given out
arrangements/actions caused by that emergency. The
installed speakers in proper number and power at the
townships provide immediate information for the
citizens or all the plantworkers. They are get
public adress about the evolved emergency, as well
as the cessation of the emergency. The RTUs include
the 4 alarm signals use in Hungary. (disaster,
air-raid, emergency over, test-run). Of course the
speakers RTUs provide the possibility to store other
signals or speeches from any countries. The
installed RTUs could be activated not only from the
center unit, but the well trained personell is able
to give out alarm signal at the spot, or with the
included microphone they can broadcast local live
speech.
Advanteges: The aluminium horn, low power usage,
energy efficent, live speech broadcast, or digital
voice storage, can be fully programmed, reliable and
long lifetime, local, or central managing,
definiated signals by user, selftest routine,
security regulations (false alarm, handling,
sabotage), variant managing options.
Main advantages of Fercom Ltd. of Siren
Systems:
- continuous development and an experience
feedback
- RPS siren can adapt to the customer's requirements
(e.g. local menu and menu languages, communication protocol etc.)
- the capacity of the voice storage memory can
expand with wide range (more then one hour)
- communication variety
- easy installation
(light weight even so robust aluminium horns, electronic and battery in
the same box)
- amplifier and driver redundancy
- modular architecture, easy expansion and repairing
- low standby current, up to 2 week standby time
- free calibration/service software (configure,
testing, upload audio files, etc.)
- CPU card based on ATMEL processor
- remote firmware update and remote configuration
opportunity
- many protection in the siren (e.g. battery, over
voltage, temperature etc.)
- external audio inputs opportunity (2 pieces), you
can gain the signal level by configuration software
- external measuring instruments and executive
modules connection opportunity
- SCADA software can adapt to the customer's
requirements
- it can integrate any exist system, it can adapt
many protocol (user protocol)
- intelligent battery charger (passive PFC,
switchable input voltage 115V/230V, over voltage
protection, short circuit protection, polarity
change protection)
- battery protection circuit (over charge/discharge
protection
- dual tone signals
- very intelligent wide range silent test on the
spot
- PIN code protection in local menu
- sabotage protection
- 3 level siren ID for siren control option
- 2 pieces RS232 port
- general proposes digital inputs and outputs
opportunities
- modular architecture horns up to 3000W, real
omnidirection characteristic |
Main Parts
Central Unit
Communication Media
Remote Control Unit
Siren Unit
Related Links
publicearlywarning.com
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