LON WORKS BASED MEANS FOR DISTRIBUTED CONTROL
AND MONITORING SAFETY PARAMETERS DISPLAY SYSTEM (SPDS1/ GARDIA
4)
Technology
based product.
One of the basic principles for achieving high
reliability and availability in the management and control of
the Nuclear Power Plants is redundancy of the provided information
to the Operators. This information shall be processed and presented
in a synthetic and, at the same time, meaningful graphic form
to allow the operator to take the right decision at the right
time. Along with the information flow for the technologic processes,
which is made available by an regular data acquisition and information
processing systems, usually called Plant Computers, the Operator
shall have available another source, which is independent physically,
logically and geographically from the ordinary information system.
This is the function of GARDIA 4.
GARDIA 4 was designed, developed and installed
to two Units of the Kozloduy Nuclear Power plant in Bulgaria.
DICS Intertrade, being LonWorks Independent Developer,
designed highly reliable distributed system, which utilizes the
range of modules, which are presented below.
The highly developed and proven technology of
Echelon Corporation
was the backbone of the architecture of GARDIA 4.
These systems have been in operation since 1999.
No single failure has occurred since then.
GARDIA 4 possesses, which has features of Expert
System. It processes a lot of specific and highly important signals
and presents messages to the operator in a concise and easily
accepted form, along with registering of the emergency events
and their cause – effect relation.
The system provides also information to the Emergency
Remote Control Center through reliable Fiber Optic Extension of
the LonWorks busses.
This system can be utilized for remote telemetry
control of scattered objects for monitoring and control on a highly
efficient price.
It has all the advantages of the LonWorks
technology.
Elements
Configuring Unit
LON-PC2 PC Interface Card
LON-OPT
AK1 Standart Analog Current
Input Channel
DK1 Discrete Signal Input Channels
CK1 RS232 Communication Input
Channel
MK1 AC Voltage Input Channel
TK1 Thermocouple Signal Input
Channel
RT1 ROUTER
KT1 Concentrator Manager
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