We present FlashLogger, an energy-ef\ufb01cient sensor data logging system that uses lazy amnesic compression in a \ufb02ashef\ufb01cient manner. FlashLogger incorporates a suite of compression algorithms suitable for progressively compressing time series scalar, audio, and image data. It uses a novel data structure for ef\ufb01ciently organizing and querying compressed data on \ufb02ash memory. All our methods are designed for the limited memory and processing capabilities typical of low power sensor nodes, and are prototyped on Tmote Sky platform running TinyOS. Evaluation of FlashLogger with several real world data sets shows orders of magnitude energy savings for both logging data and retrieving data within a time range.<\/p>\n","protected":false},"excerpt":{"rendered":"
We present FlashLogger, an energy-ef\ufb01cient sensor data logging system that uses lazy amnesic compression in a \ufb02ashef\ufb01cient manner. FlashLogger incorporates a suite of compression algorithms suitable for progressively compressing time series scalar, audio, and image data. It uses a novel data structure for ef\ufb01ciently organizing and querying compressed data on \ufb02ash memory. All our methods […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":[{"type":"user_nicename","value":"sumann"}],"msr_publishername":"Association for Computing Machinery, Inc.","msr_publisher_other":"","msr_booktitle":"IPSN'09: Information Processing in Sensor Networks","msr_chapter":"","msr_edition":"IPSN'09: Information Processing in Sensor Networks","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"Copyright \u00a9 2007 by the Association for Computing Machinery, Inc. 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