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Introduction
Computer
Telephony Solution for Plant Communication Systems
The
commercialization of digital technology revolutionized the industrial
world. It’s impact on every area of life has been unparalleled by
any other. Bringing with it speed, miniaturization and greatly increasing
reliability and accuracy, it entered the field of communication
causing tremendous growth in this area. Digitized information being
relatively free from electrical, magnetic and other signal noises
broke down the limiting barriers of conventional technology and
rapidly replaced analogue systems.
A
lot of work was done in the area of digital switching, and products
proven in reliability and speed, delivered power to various applications.
Digital EPABX’s replaced conventional cross bar systems even into
the remotest villages of India.
But
the technological revolution did not cease. With the power of the
PC changing lives and destinies of people, organizations and countries,
it was not long before it’s potential was recognized in communication
circles.
Thus evolved CTI or Computer Telephony Integration. Recognized as the next breakthrough for the coming super information millenium, stupendous work and progress is being recorded in this area. BNA proudly presents the Computer based
Digital Plant Communication System or CPCS-2000.
A State-of- the-art communication system specifically engineered for usage in Plants and process industries, with all the advantages of digital technology coupled with the ease of configurability, operationality and controllability made accessible by a PC. A wide range of features designed for plant operation enables the system to be a powerful tool in the hands of the educated user. The
versatility of software configuration over physical hardware changes
enables a high level of customization according to exact site requirements
and usage.
The
system is designed with its primary requisites being reliability,
ease of control and flexibility. While redundancy of all critical
cards in hot stand-by assures the former , user friendly software
driven menus and simple key operations enables the operator to maximize
utilization of all the various features.
The
CPCS- 2000 allows clear, trouble free and limitless communication
between process points and control rooms and vice versa, ensuring
vital information transfer, essential for the efficient and smooth
operation of a plant.
System Write Up The loud speaker inter- communication system is based on "State of Art" Computer Telephony Integration incorporating digital technology. Further integration of analog audio amplifiers through paging controllers units facilitate individual and selective paging while ensuring clarity and audibility at very high volumes. The System provides point to point paging and fully duplex intercommunication over entire area of plant, without requiring any operator intervention at master console. Features like zone paging multi zonal paging, teleconferencing, priority interrupt, queuing etc, maximize utilization of the power of the digital switch. Two master control stations monitor the system with individual control from each. The system is controlled by a powerful software, which co-ordinate, monitors and diagnoses the every working of the entire system. The
band width and various parameters of the LSIC system including
that of DSS, call stations, Amplifiers, Loudspeakers, Cables &
Cabling, Paging controller etc., are selected, designed and tuned
so as to enable intelligible, clear & loud paging as well
as private communication; through the system, even in a plant
environment of high noise ambiance. |
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The
CASPro system was evolved to meet the need of automated announcements
at all public utility areas like airports, railway stations, bus
stands etc. The system is designed to facilitate announcements in
multiple languages with various variable parameters. The system
being digital and software based enables flexibility and easy configurability.
I
) System Description.
The
system consists of a Main Announcement Console ( MAC) and Remote
announcement console ( RAC) , from where announcements originate.
The Console operator is able to route the announcements to selected
Zones, Groups or to All call . Further, he is also able to assign
a sequence for the announcement, and set a repeat sequence, if needed.
The functional procedure for the both the consoles are the same,
and one console is able to continue/terminate the command issued
by the other, if needed.
The
remote announcement console operates as a slave console and the
main console has a higher priority over this console.
The Computerised consoles feed the selected input signal to the amplifier rack through a selection matrix. All the loudspeakers would be broadcasting signals from one of the three functional inputs as indicated below. a.
Arrival/ Departure Announcements , from the announcement console
or from the Computerised announcement system.
b.
Pre-recorded Music or Advertisements from CD ROM Changer
c.
High-priority Alarm announcements, directly from consoles, equipment
rack or other systems.
Key
Strengths of the system.
The
system is based on State of the art Computer based architecture
with versatile and flexible storage and retrieval hardware which
eliminates restriction created by microprocessor based PROM controlled
systems. Also standard Communications protocols are used and implementation
based on proprietary hardware is avoided.
The
System is implemented using standard Multimedia Component Systems
with user friendly menu driven software.
The
system has the capability to Pre-define functions using visual tools.
Standard
networking options permit interconnection between other locations,
such as the
up-link
and down-link stations. This can be implemented where by the loudspeakers
in the other stations can be considered as remote zones on the main
console.
The
key pads, displays and the i/o ports etc. conform to standard peripheral
standards, but are customised for use by a non-professional.
Functional Specifications: 1)
The System accepts inputs from the following sub-systems
2)
It is possible to effect announcements in the following modes.
3)
The System has a frequency response ideally suited for high intelligibility
in voice announcements in noisy areas.
4)The system can also be used for playing of Music as well as other advertisements/commercials, but priority would be for clarity for speech announcements.
Overview of the CASPro Product The
system incorporates digital voice banks and GUI based screens to
ensure unlimited, error free, clear and intelligible messages be
announced allowing regular repetitions eliminating human error or
variance.
Software
is user friendly and flexible to suit various requirements.
The
solution being PC based ensures it future proof. Software used and
written are in presently relevant GUI based languages. Standard
PC protocols are used for communication thereby eliminating obsolesce
as software and hardware upgradation occurs.
The
cost of the system is dependant on features included, no audio input
required , no of platforms or announcement zones required, size
of database and other variable factors.
CASPro
has been developed after in-depth study of the announcement need
in public places and BNA’s strength and long experience in this
field ensured the technical superiority of the CASPro system to
all other existing systems, in terms of usability, flexibility and
control.
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Traditional
BAS ( Building Automation Systems ) or in large Manufacturing facilities
have been designed as an independent system, using specialized
processors communicating on a separate low speed network.
The controllers used are low technology 8bit or 16 bit versions,
but due to their proprietary nature and low volumes, they
are priced very high, compared to similar products in other similar
applications.
The
only integration of such independent Control Systems to the
LAN backbone, if at all provided, is provided through
a gateway device, in the form of a gateway controller.
Today,
all corporate users have high speed LAN network, and Convergence
is the order of the day. BNA has developed a complete line
of BAS services based on controllers which sit directly on
the Corporate LAN, and which uses standard protocols, such as TCP/IP
for their communications. Direct, point to point connections,
are used only when there is a requirement of real time communication
for instant controls.
In
implementing such projects, BNA can either take up a total turnkey
responsibility of a total Solution provider, or can provide
assistance for design of systems and also supply the various
Active controllers and other devices required for the implementation
by third parties.
Key
Advantages of such Integrated Systems:
1.
The Building or Factory Automation of non-critical nature, such
as access information through an entrance in a building or the bar-code
of an item or part or sub-assembly crossing a control point, can
now be dealt as a Data Item, and as such captured and integrated
in to other Plant wide systems, such as Paging Systems or
Product Tracking Systems, without any additional system
or protocol translator/ converter.
2.
As the existing Dedicated Controller / PLC based
systems are replaced with new systems as they near end of
their life-cycles, the new Ethernet based systems can be introduced
locally, and integration of the system can be done at
"information" level, rather than follow the traditional
route of autonomous controllers.
3.
New Systems for any new activity, can be easily added
to an existing premises, without disturbing any of the existing
systems. For example, a new product identification or counting system
can be introduced at some new control point in the manufacturing
cycle, to provide some new tracking functionality, and this information
can be readily integrated in to a new audit or security
alert application, without ever upgrading the existing hardware
or sensors of an existing factory tracking system.
4. Finally, one of the most important application area of this approach is that on line systems can now be installed and integrated in farthest points in the premises, and still integrated in to an on-line systems without any additional cabling or networking. For example, a new addition to the product tracking systems in the form of Yard-inspection and Gate inspection can be added to an existing Product tracking system, even if these points are miles away from the manufacturing plant. Campus-wide Ethernet connectivity to such systems can be provided using DSL/ Wireless connectivity, and the data can be imported in to the target application which may be anywhere in the manufacturing facility. |
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| Reference List | |
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| Electricity Boards | |||||
| Steel Plants | |||||
| Major Industries | |||||
| Government Department | |||||