Emergency Data Distribution Network
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Transcript of Emergency Data Distribution Network
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Emergency Data Distribution Network
Proposalto add an independent
GOES DCS Reception and Distribution System
to complement the
NESDIS Wallops Island FacilityPresented by Ernest Dreyer, USGS/WRD
January 23, 2008
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Overview
Review EDDN project
Provide a current status
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EDDN Project GOALS• Receive data from all DCPs transmitting in
the GOES DCS independently of Wallops Island.
• Locate facility at a receive site(s) sufficiently distant from Wallops Island to achieve event independence.
XImplement additional pilot signal at a location other than Wallops Island.
• Distribute data independently of Wallops Island.
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STIWG/NESDIS Proposal• Locate the emergency distribution system
at the USGS EROS Data Center in Sioux Falls, South Dakota.
• USGS and NOAA/NESDIS will share the costs for procurement of the Direct Readout Ground Station system.
• System will be primarily operated by USGS with support from NESDIS.
• Operational costs will be shared among users who agree to participate and NESDIS.
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LimitationsContains no system to
• Make new assignments• Data will be acquired from any transmitting DCP and so an internal schedule will not be necessary.
Generate abnormal platform response messages - changed!!!changed!!!•Messages will be checked for abnormal conditions as long as there is access to a PDT file.
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Limitations (cont.)• Distribution will initially be over the
Internet using the DDS protocol.• No DOMSAT transmissions• No direct land-lines
• Depends on the existence of a usable pilot signal.
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Basic EDDN System DRGS system with 2 antennas for
GOES East and West ( at least 7M ) DOMSAT system for data from
Wallops Island LRGS systems for acquiring and
distributing data. Web Server for reporting system
status.
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Some Features required of theEDDN GOES Receive System
Receive both 100 and 300 baud messages on the same channel.
Support a backup pilot signal and be able to switch to the backup if the primary signal fails.
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Diagram of Proposed System
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System Monitoring• Use Big Brother system monitoring
Write Big Brother clients for monitoring DRGSs via the DAMS NT event socket LRGSs via system logs Other events significant to the operations of
system• Big Brother can
Display current status on web site Send notifications to email groups Page users
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System Control
• After initial setup, system should operate with a minimum of operator intervention.
• System will be remotely managed using a remote system console assisted by on-site support.
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Current Status of EDDN
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Calendar of Contract Events Contract Awarded in July 2007 to
Microcom Design Inc. Contract began in Early August 2007. Contract to be completed in February
2008.
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Status of EROS Installation Antennas
GOES East: New 7.5M antenna has been installed. GOES West: Existing 8.1M antenna has been
refurbished. DOMSAT: New 2.4M antenna has been installed. Backup: Backup 3.8M antenna has been installed.
Cabling All power cables have been installed. All communications cables have been
installed.
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Status of EROS Installation(cont)
GOES Receivers GOES Receivers are installed and receiving data
from all domestic channels on GOES East and West. To Be Done
Testing and fine tuning system will continue until final acceptance.
Operational training will occur during the last two weeks of February.
Integration into operational systems will begin in March.
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Installing Conduits
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Cabling from Warehouse to Main Building
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Hole for 7.5M Antenna Pad
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7.5M Antenna for GOES West
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7.5M Antenna for GOES West
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Three New Antennas
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8.1M Antenna at EROS for GOES East
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GOES Receive Equipment at EROS
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EROS System Diagram
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Status Display on EROS LRGS
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Status of Other Related Activities LRGS Software
Version 6.1 of LRGS software is being tested and refined. Public EDDN Web Server
A Web server (lrgseddn1.cr.usgs.gov) is being constructed to provide:
Status of the public LRGSs Access to Big Brother Monitoring Page Server Pages that
Describe the EDDN Describe message format Describe how to obtain and install LRGS software Make available relevant Documentation
Accessible mirror of the LRGS software source code repository
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Status of Other Related Activities User Registration
A Synchronization scheme has been established to mirror user information for users registered on the NESDIS LRGS systems.
When scheme has been implemented, users already registered with NESDIS will automatically be registered with the EDDN system.
A proposal for a new format for user Ids is under consideration.
Note: Password authentication will be enabled.
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Status of Other Related Activities User Access
EDDN system can be accessed in the same manner as the current LRGSs at Wallops.
For current LRGS users, if they upgrade to version 6.1, they can configure their LRGS to include the EDDN LRGSs as dynamic backups.
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Example of LRGS Configuration<!--#------------------------------------------------------------------# Lrgs Configuration#------------------------------------------------------------------## This is an example LRGS configuration file.## Data storage areaarchiveDir=/usr/opt/LRGS/archivenumDayFiles=31# Status snapshot intervalhtmlStatusSeconds=10# DDS connections from other systemsddsListenPort=16003ddsRequireAuth=false# DOMSAT configurationenableDomsatRecv=truedomsatTimeout=60loadDomsat=truedomsatClass=lrgs.domsatrecv.DomsatSangoma# Remote DDS connectionsenableDdsRecv=trueddsRecvConfig=/usr/opt/LRGS/ddsrecv.confrecoverOutages=truemergePref1=DOMSATmergePref2=DDS
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Example of DDS Configuration<!--This file holds the DDS Receiver Configuration.--><ddsrecvconf><connection number="1" host="lrgseddn2.cr.usgs.gov"><name>lrgseddn2</name><port>16003</port><enabled>true</enabled><username>usgs.wrd.va</username><authenticate>true</authenticate></connection>
<connection number="2" host="cdadata.wcda.noaa.gov"><name>CDADATA</name><port>16003</port><enabled>true</enabled><username>usgs.wrd.va</username><authenticate>true</authenticate></connection></ddsrecvconf>