Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2007-11-27
2007-11-27
Cosimano, Edward R (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
C340S003100, C340S500000, C340S870010, C340S870070, C340S870160, C700S028000, C700S032000, C700S108000, C702S187000, C702S188000
Reexamination Certificate
active
11365215
ABSTRACT:
A system and method for providing energy-efficient support of continuous aggregate queries in a sensor network by efficiently orchestrating the collection and transmission of data gathered by a collective set of sensors to ensure conformance to a specified QoI bound. To ensure this, the sink communicates a potentially different value of precision range or interval to each individual sensor; the sensor is adapted to only report its samples back to the sink if the sample values fall outside this specified range. An additional way to specify temporally varying precision ranges to an individual sensor or groups of sensors is provided without having to explicitly communicate the precision bounds for these different time instants. Using temporally varying precision ranges permits the exploitation of temporal correlation among the sample values recorded by an individual sensor to further reduce the need for reports from the sensors. This approach is more energy-efficient and improves performance of long-running pervasive environment monitoring applications.
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Hu Wen
Misra Archan
Shorey Rajeev
Abzug, Esq. Jesse
Cosimano Edward R
International Business Machines - Corporation
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