home
> business lines > Broadcast
> ISS Supervisory
Demo : Itelco Supervisory System - ISS
Function
Continual technical evolution
has brought about an increase in the complexity of the various broadcast systems
along with a reduction of engineering staff in many organizations. Thus the
request for control and monitoring systems has considerably increased. Itelco
proudly presents its industry-leading Supervisory System (ISS). The
ISS with its windows based software enables a very sophisticated, user-friendly
control and management of a single transmitter to a whole network of
transmitters. The ISS can be applied to any Itelco transmitter as well as also
to transmitters from other manufacturers. The open system architecture allows
tailoring the system to the customer�s specific requirements as well as
modifying or expanding its features in the future. The ISS enhances the ease of
transmitter maintenance by identifying the location and number of faults,
providing maintenance date and time information, and allowing long-term trend
analysis. The software directed ISS provides information from the entire
transmitter by gathering data and parameters from each major subassembly. The
system�s Acquisition/Control logic interfaces, which acquire the normalized
values from the signal conditioning interfaces of the transmitter�s major
subassemblies and the logic of the exciter, forward their data to the G232
serial line Multiplexer. Data from subassemblies that have no signal
conditioning interface can be gathered through the G034, which normalizes the
values and forwards them to the G232. From there the information is communicated
to the control center PC through a standard switched telephone line or GSM
mobile phone connection. Alternatively, the information from the G232 can be
communicated first to a local PC (PC-based Version) and from there to the
control center PC. The PC software elaborates the values and visualizes the
resulting data and parameters in a simple and intuitive graphical user
interface. For each data three color-labeled threshold levels are displayed -
normal functioning, warning, alarm -. The software organizes the data/alarms in
databases for further reading and evaluation. From the PC the following remote
commands can be carried out: transmitter ON/Reset; transmitter OFF; and setting
of digital parameters of digital exciters.
Key
Features/Benefits
Supervision of transmitting systems manufactured by Itelco and/or
other manufactures
Comprehensive, real-time monitoring and commands
Open system architecture allows customization and continuous growth
Supervision of single transmitter to transmitter network
User-friendly graphic interface in Windows environment
ISS software configurable to specific customer requirements
Data/alarm storage in Microsoft Access data base format
Automatic calling of control center PC in the event of a failure
Values are displayed in graphic and numeric forms
The control center PC calls the transmitter station at set hours and
gathers data
Multiple user access levels
Software provides trend and diagnostic analysis
System Components
The ISS uses
the following hardware and software for the data
management of
each transmitting system:
Acquisition/Control logic interfaces
G034 General Purpose Acquisition and Control Unit
G232 Front End Concentrator
PC-based Version
Switched telephone line / GSM phone connection
Software and control center PC
G020
Changeover unit for 1+1 passive reserve systems-transmitters or exciters.
-
G011
Changeover unit for N+1 passive and active reserve systems.
-
G021 Control
logic for IOT transmitters.
-
G041 Control
logic for solid state transmitters.
-
G042 Control
logic for solid state transmitters.
Control logics incorporated in digital exciters.
G034 General
Purpose Acquisition and Control Unit
The General
Purpose Acquisition/Control unit is used to interface measurements from
transmitters or its subunits that lack a RS232 output with the supervisory
system. The G034 normalizes the input signals and communicates them to the G232.
It is possible to customize the G034 to specific functions and integrate the
monitoring and control of transmitters not manufactured by Itelco.
The G034 is equipped with 23 digital inputs, 16 analog inputs, 15 digital
outputs, 3 analog outputs. Each digital input/output signal is opto/galvanic
isolated and has a LED indicator to ease installation and service. Each analog
input has a High Impedance Differential Input Amplifier and buffered analog
outputs. Optionally, the control of accessory equipment present in the station,
such as the cooling cabinet, motor generator, tower lights, and security system
can be comprised into the ISS.
G232 Front End
Concentrator
The G232 is the
interface between the control center PC and the Acquisition/Control logic
interfaces and, when present, the G034 General Purpose Acquisition and Control
unit. The G232 acts as a multiplexer for up to eight RS232 serial lines. The
switch command, as well as all other G232 commands, is sent through the RS232
input line with a unique command. LEDs are used to indicate the status of the
switch. The G232 is equipped with a modem in order to connect directly to a
standard telephone line. A connection by means of a mobile phone is also
available. The G232 can automatically poll the connected units in order to check
their general fault status. In presence of a fault, the G232 calls the preset
telephone numbers.
"PC-based
Version"
Optionally,
instead of having just one PC at the control center, each transmitter station is
equipped with its own PC. In this case the Acquisition/Control logics and the
G034 are connected to the station�s PC, which integrates the G232 functions on
a PC plug-in card. The PC operates a reconfigured ISS software. A general
purpose remote control PC software is used to control the local PC directly from
the control center.
Software and
control center PC
The Windows based
ISS software provides simple and intuitive operation. A standard PC with the
following minimum features is required: i486 CPU, 8MB RAM, 850MB HD, VGA
graphic, Microsoft Windows 95, and a modem.
Configuration
The data is automatically
gathered from the stations at set hours. If the station is not called by a
certain preset time, a user defined procedure will be activated. The G232 logic
can be configured for spontaneous calling in case a fault occurs. The alarm will
be indicated on the PC monitor by a blinking red label.
Multiple user
access levels:
The ISS has three password
coded access levels. Level 0 allows local transmitter control only, disabling
RS232 communication. Level 1 allows the ISS only receiving data from the
transmitter. Level 2 enables ISS to send and receive data, providing complete
control of the transmitter.
Monitoring
Any value can be measured
and displayed in a graphic and numeric form. Physical layouts and mechanical
diagrams of the transmitter and its subassemblies (power amplifiers, exciter,
logic unit etc.), electrical layouts, tables and block diagrams in Windows
environment provide user-friendly monitoring. The ISS graphically displays the
component causingthe fault. Self-diagnosis, graphic guide and on-line service
manual with context help are provided.
Database editing
The data is on-line
edited with three colorlabeled threshold levels (normal, warning, alarm) and
stored in a Microsoft Access file format database. The ISS automatically detects
parameters which are outside a preset range of admissible parameter variations.
The database creates two types of statistics.
Any time the center PC connects with the transmitter, the Value Statistic stores
a complete set of data (analog and digital) and the Alarm Statistic stores all
detected fault conditions. The operator can edit further statistical reports
from this data.
|