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Published byLester Lawson Modified over 9 years ago
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Oregon State University Marine Technical Group 2009-2010 SUDS Upgrade
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OSU MTG Members Sponsor o National Science Foundation System Description o Measurement, Conversion, and Data Transmission Format - David O’Gorman o Transport, Recording, and Distribution - Toby Martin Questions Oregon State University Ships Underway Data System
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System Overview Phenomenon (Rainfall, Wind Speed, etc) > Sensor > Electrical Signal (Serial Stream, Voltage, Frequency, etc.) > Conversion > Transmission > Recording > Distribution Oregon State University Ships Underway Data System
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Sensors Direct - 32 Signals From 27 Sensors Multiple Signals per Sensor - PIR, Mech. Wind Multiple Sensors - Wind, Air Temp Combined Metrics - Salinity, 'True' Wind Oregon State University Ships Underway Data System
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Digital Conversion Old o Keithley and Adam Modules o Direct Serial Links New o OSU DAS Boards NTP Time Synced Network Interface Serial Analog Provide Local Power Custom Adaptable Oregon State University Ships Underway Data System
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Data Selection o Raw Values o Processed values o Meta Data Location, name, etc. o Everything With Every Sample Data Formatting For Transmission o CSV, XML, KVP, SNMP o XML XML Readability Clear and Simple Association of data and Metadata Large, but comprehensive Oregon State University Ships Underway Data System
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Transport Security (malicious, inadvertent) o Isolated Network o Redundant Aggregation Protocol (TCP vs UDP) o Reliability (Delivery Guarantee) o Flexibility o Scalability o Overhead Oregon State University Ships Underway Data System
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Recording Streaming Logs - Per Acquisition Board Sensor Files - Per Sensor (Primary And Virtual) File Partitioning - Convenience o Processing Interval o Offloading Interval o Time o Size Oregon State University Ships Underway Data System
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Distribution Local Sacrificial Servers - on user accessible network Onboard User Access o Files - Internal Archive o Graphs - Near Real-time o Streams - (TCP, Serial,...) Near Real-time Dissemination Off Ship o Repositories o Archives o Special Users (VOS, SAMOS, R2R, per cruise,...)VOSSAMOSR2R o Data Volume Oregon State University Ships Underway Data System
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Summary Network Sensor interface Increase Sample Frequency Ease of use for Users and Technicians Questions and Comments ? Oregon State University Ships Underway Data System
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