LEARNING AND REASONING ABOUT THE CONTEXT-SENSITIVE RELIABILITY OF SENSORS
First Claim
1. A system for context-sensitive monitoring of sensor performance for an arterial flow system comprising the following computer-executable components:
- a sensor interface component that obtains sensor data from a plurality of sensors;
a context analyzer component that analyzes contextual data associated with the plurality of sensors;
a sensor analyzer component that identifies degraded sensor data based at least in part upon analysis of the contextual data; and
an output component that provides output sensor data based at least in part upon identification of the degraded sensor data.
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Accused Products
Abstract
A sensor monitoring system is described that identifies inaccurate or degraded sensor data and corresponding sensors. The system analyzes a plurality of sensors to determine reliable sensors and isolate or reinterpret unreliable sensor data. An analysis component analyzes a traffic representation that varies as context varies and determines the probability that current sensor data is invalid. Learning and reasoning are performed from a case library of sensor failure data to build predictive models of sensor health that can provide inferences about the output of sensors. Resulting inferences about sensor reliability can be employed in base-level inferences and predictions about traffic flow.
77 Citations
20 Claims
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1. A system for context-sensitive monitoring of sensor performance for an arterial flow system comprising the following computer-executable components:
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a sensor interface component that obtains sensor data from a plurality of sensors; a context analyzer component that analyzes contextual data associated with the plurality of sensors; a sensor analyzer component that identifies degraded sensor data based at least in part upon analysis of the contextual data; and an output component that provides output sensor data based at least in part upon identification of the degraded sensor data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer-implemented method for identifying questionable sensor data, comprising:
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obtaining data from a data source; analyzing context of the data source; and identifying a subset of the data as suspect data based at least in part upon context. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A system for context-sensitive monitoring of sensor performance for an arterial flow system comprising the following computer-executable components:
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means for receiving sensor data from a plurality of sensors; means for analyzing sensor data based at least in part upon sensor context; and means for filtering output data based at least in part upon the sensor data analysis. - View Dependent Claims (19, 20)
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Specification