saudi positioning system modernization and expansion
DESCRIPTION
Saudi Positioning System Modernization and Expansion. PRESENTED BY: Erik Johannessen. Presented to: ILA 36 Orlando FL 15 October, 2007. Overview. - PowerPoint PPT PresentationTRANSCRIPT
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Saudi Positioning System Modernization and Expansion
PRESENTED BY:
Erik Johannessen
Presented to:
ILA 36Orlando FL15 October, 2007
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Megapulse Incorporated October, 2007
Overview Saudi Sea Ports Authority (SEAPA) is responsible
for the Loran service in Saudi. Contracted O&M is renewed on a three year basis via competitive tender among Saudi firms.
The latest 3 year contract began in Jan 2007. System modernization is part of the scope. Included in the current project is:
Upgrading system clocks Modernization of Chain Control Equipment Restoring Loran service at Salwa Adding Eurofix to Salwa
Delivery to be complete by Jan 2008.
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Megapulse Incorporated October, 2007
Present Saudi Positioning System (SPS) Coverage
3 stations, each rated at 1MW
SAM (LRSII) at Qunfudah, south of Jeddah
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Megapulse Incorporated October, 2007
Future SPS Coverage
Restoration of 1MW station at Salwa
Return of Monitor station at Al Jubail
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Megapulse Incorporated October, 2007
Modernization of Chain Control Equipment Replacement hardware and software performs three different functions
roughly divided as: Chain Control Station - receives monitor data on a RS-232 data line,
processes the data, display the data, display trends determined from the processing of the data, process alarm data, notify the user of such alarms and archive the data in a format which would allow the data to be fully retrieved.
Administrative Teletype - currently an ASR43 teletype (with definable addressing) to be replaced with a combination of hardware and software. Future implementation will include a combination of software and hardware to allow for active monitoring and archiving of the SMU messages.
SMU logging - An ASR43 teletype logs the output of the Status Monitor Unit (SMU).
The present Saudi communications system operates at 110 baud. The networks are setup to allow all stations to be online all the time.
There are two different networks, one for the administrative station traffic, and the other for the monitor station data.
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Megapulse Incorporated October, 2007
Present Inter-site Communication Diagram
LorstaAsh ShaykHumayd
LorstaAl Muwassam
LorstaSalwa
LorstaAfif
Chain Control
COCO Depot
Monitor SiteQunfudah
Monitor SiteAl Jubail
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Megapulse Incorporated October, 2007
Present Lorsta Communication Interface
RFL 6850 converts RS232 to frequency divided channels over a single voice line.
Left RCU
Right RCU
SMU
RFL 6850To ChainControlCenterRiyadh
Teletype
Teletype
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Megapulse Incorporated October, 2007
Proposed Lorsta Architecture
SEAPA decided to eliminate the RFL 6850 and low data rate with VSAT
terminals
Networked Printer
Ethernet Switch
Left RCU
Right RCU
SMU
RFL 6850
Existing Wiring (No Change)
Existing Wiring (No Change)
Load BatteryLineOn On
BatterySmartBoost
ReplaceBattery
Test
Desktop
Existing Wiring (No Change)
Existing Wiring (No Change)
RS-232 RS-232
UPS
To ChainControlCenter
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Megapulse Incorporated October, 2007
SMU Logging and Administrative Teletype
PC #1
Windows Communicator ClientThunderbird Email Client
(ZOC){Open Office}
PC #2
ZOC(Windows Communicator Client)
(Thunderbird Email Client){Open Office}
SMU
Printer Ethernet SwitchVSAT
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Megapulse Incorporated October, 2007
Site Survey
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Megapulse Incorporated October, 2007
Chain Control 4 PCs: 1 each for
Monitor sites, 1 administrative, and 1 local RCU SMU logging.
Config application Display Application Same admin and
logging software apps as at Lorstas
Networked Printer
LORSTAAdministrative
QunfudahMonitor
JubailMonitor
JubailMonitor
#2
QunfudahMonitor
#2
JubailMonitor
#1
QunfudahMonitor
#1
LORSTAAdministrative
RCU-SMULOGGING
Left RCU
Right RCU
SMU
Ethernet Switch
RCUs & SMU are existing equipmentat the Control Station.
Load BatteryLineOn On
BatterySmartBoost
ReplaceBattery
Test
Load BatteryLineOn On
BatterySmartBoost
ReplaceBattery
Test
UPS
UPS
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
June Trip to Riyadh by John Allen, Megapulse Field Engineer Purpose was two fold:
Training on replacement Lordac system Site survey of Chain Control Center
Upon arrival, rerouted to Salwa
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
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Megapulse Incorporated October, 2007
Summary
Eurofix hardware shipped in June. Chain control hardware shipped in August. Due to unavailability of Salwa, delivery of
complete 4 station system can not be finalized, requesting contract modification.
Estimated delay in restoration of Salwa may be as long as 12 months.
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Megapulse Incorporated October, 2007
Questions?