Method and apparatus for opportunistic decision support from intermittent interconnected sensors and data archives
First Claim
1. A sensor subsystem for use in a system comprising one or more other similar sensor subsystems arid a base processing system, the sensor subsystem comprising:
- a. Two or more data sources for gathering parameter data;
b. A data summarizer which fuses parameter data gathered by two or more data sources to create an abstract data parameter;
c. A progressive model, which takes as input abstract data parameters, and generates an output data model; and
d. Means, which takes as input the output data model and derives an optimized schedule for i. (i) subsequent gathering of data by the sensor subsystem and ii. (ii) subsequent transmission of model data to the base processing station e. so as to maximize accuracy of a data model executed by the base station.
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Abstract
Described is a method and apparatus for obtaining accurate, timely information for event detection and prediction based on autonomous opportunism. The objective is to make the best possible use of all available resources at the time of acquisition, including historical data, multiple sensors, and multiresolution acquisition capabilities, under a given set of processing and communication bandwidth constraints. This method (and the corresponding apparatus) fuses multiple adaptively acquired data sources to prepare information for use by decision support models. The onboard data acquisition schedule is constructed to maximize the prediction accuracy of the decision models, which are designed to operate progressively, utilizing data representations consisting of multiple abstraction levels and multiple resolutions. Due to the progressive nature of these models, they can be executed onboard even with the use of substantially summarized (or compressed) datasets delivered from the ground or from other satellite platforms. Models are formulated to accept data with less than complete certainty, thus allowing real-time decisions to be made on locations where additional data is to be acquired based on predicted likelihood of the event of interest and uncertainties. Multi-abstraction-level multi-resolution data is expressed using standard-compliant representations, and progressively transmitted to the ground or other platforms. More detailed calculations can then be performed on the ground using all of the available real time and historical data.
16 Citations
10 Claims
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1. A sensor subsystem for use in a system comprising one or more other similar sensor subsystems arid a base processing system, the sensor subsystem comprising:
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a. Two or more data sources for gathering parameter data;
b. A data summarizer which fuses parameter data gathered by two or more data sources to create an abstract data parameter;
c. A progressive model, which takes as input abstract data parameters, and generates an output data model; and
d. Means, which takes as input the output data model and derives an optimized schedule for i. (i) subsequent gathering of data by the sensor subsystem and ii. (ii) subsequent transmission of model data to the base processing station e. so as to maximize accuracy of a data model executed by the base station. - View Dependent Claims (2, 3, 4)
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5. A base processing system for use in a system comprising two or more sensor subsystems, the base processing system comprising:
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a. Two or more data sources for gathering parameter data, at least one of the data sources being a sensor subsystem for generating model representing data gathered by two or more sensor subsystems;
b. A data summarizer which fuses parameter data gathered by the two or more data sources to create an abstract data parameter;
c. A progressive model which takes as input abstract data parameters and generates an output date model upon which a decision maker can base a decision. - View Dependent Claims (6)
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7. A method, performed by a first remote sensor subsystem, for enabling the a first remote censor subsystem to opportunistically collaborate with one or more other remote sensor subsystems in a system comprising two or more censor subsystems and a base processing system, the method comprising:
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a. Performing a model based processing of information collected by sensors located on board the first remote sensor subsystem;
b. Seeking out one or more neighboring remote sensor subsystems;
c. If there is a neighboring remote sensor subsystem, passing information to the neighboring remote sensor subsystem, and if not, transmitting the information to the base processing system. - View Dependent Claims (8, 9, 10)
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Specification