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MQT industrial Fiber Data Ring |
Brief introduction:
iFDR make use of network communication, RS-232 and RS-458 serial communication,
data acquisition technology, configuring central processing cell and
data switching cell, realizing intelligentized data acquisition, data
processing, data transmission and self-management. iFDR is used in electric
network system as the far-end device of automatic distribution system.
IFDR realizes data acquisition, far-end control and self-monitoring,
advancing the automatization, intelligibility and efficiency, economizing
on manpower and material resources, debasing working strength, improving
productivity and economic efficiency. This equipment has application
in long distance meter reading system. The topology of networks is agile.
Use fiber in long distance transmission, avoiding the interference of
different node electric potential and atrocious circumstance, such as
deeply electric field under industry and deeply magnetic field, realizing
reliable data transmission. Close-quarters transmission can make use
of low cost electrical transmission. This system is provided with fast
and reliable self-recovery capability. Network management can monitor
the whole system and locate the position of communication fault, ensuring
the security and reliabity of the whole network system. Network maintenance
is very convenient.
Function
Measure ports with electric current and voltage. It connect electric
current transformer and voltage transformer exteriorly, picking up some
parameter,such as the virtual value of electrical current and voltage
of electric network.
Switching signal acquisition port checks the on off state of electric
power equipment.
Serial communication ports realize two-directional communication between
iFDR equipment and electrical equipment, picking up all kinds of operational
parameter of electrical equipments and transmitting all sorts of instruction
and data of long distance control center to electrical equipment.
Internal central processing and data exchange cell pack parameter and
the data of on off state as network data packet, then transmit the data
packet to long distance control center .
Receive all kinds of instruction and data from long distance control
center with network communication port. Inner central processor analyze
the instruction and data and then convert them into the format accepted
by electrical equipment, finally, transmit them to electrical equipment
by serial communication port.
Each port has possession of independent ID and can be configured.
Check and measure working state itself and transimit the data to far
end.
Either configure the equipment by ethernet port remotely, or configure
the equipment by serial communication ports locally.
Each serial port of different node can transimit signal transparently.
The network can realize natural repair based on double ring topology.
The logical capability of iFDR as follow picture:
Interface characteristic:
Loop circuit provide two 100M interfaces.
Two 100BASE-T interfaces.
Five RS-232/RS-458 serial interfaces.
Six ways of simulate analog acquisition.
Ten ways of switch signal acquisition.
Technology advantage
Build network simply. The structureof RPR is double ring, including
interior ring and outside ring. Two routs between each node ensure the
reliability. Support automatic discovery and rehabiliation, no need
manu-configure.
PRP make use of IPS protection mechanism, realizing 50 nm natural repair
and ensuring the reliability of network also.
RPR provide strict COS class and ensure the service of high priority
operation.
Avoid some complex tache, such as TTU, FTU,RTU and so on,and improve
availability.
Provide viedo graphics monitor and data service, making using LAN interface.
Deep extensibility.
System scenario:
Distribution transformer and disconnector are important power equipments
in power system, whose operating data is important component of the
whole basic data in the distribution network. So, it is necessary to
monitor operating parameter and state.
From the picture upwards, we know that the credibility
of communication network is important.
iFDR equipment achieve digital quantity acquisition and analog quantity
acquisition, transimitting the information to monitor and control center
over RPR network. System scenario as follow:
Application sample:
Application 1 (Circling topology):
Application 2 (Chain topology):
