Event-based formalism for data management in a wireless sensor network
First Claim
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1. A wireless sensor network comprising:
- a plurality of nodes that communicate over wireless communication links, wherein at least one of the plurality of nodes receives sensor data from a sensor;
wherein at least one of the plurality of nodes determines when a discrete event occurs and, when the discrete event occurs, transmits data related to the discrete event over at least one of the wireless communication links; and
wherein the discrete event is a function of the sensor data.
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Abstract
A wireless sensor network comprises a plurality of nodes that communicate over wireless communication links. At least one of the plurality of nodes receives sensor data from a sensor. At least one of the plurality of nodes determines when a discrete event occurs. When the discrete event occurs, transmits data related to the discrete event over at least one of the wireless communication links. The discrete event is a function of the sensor data.
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Citations
20 Claims
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1. A wireless sensor network comprising:
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a plurality of nodes that communicate over wireless communication links, wherein at least one of the plurality of nodes receives sensor data from a sensor;
wherein at least one of the plurality of nodes determines when a discrete event occurs and, when the discrete event occurs, transmits data related to the discrete event over at least one of the wireless communication links; and
wherein the discrete event is a function of the sensor data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless sensor node, comprising:
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a wireless transceiver to communicate over a wireless communication link; and
a sensor interface to receive sensor data from a sensor;
wherein the wireless sensor node determines when a discrete event occurs and, when the discrete event occurs, transmits data related to the discrete event over the wireless communication link; and
wherein the discrete event is a function of the sensor data. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of accessing data in a wireless sensor network comprising a plurality of nodes that communicate over wireless communication links, wherein at least one of the plurality of nodes receives sensor data from a sensor, the method comprising:
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querying the wireless sensor network for data, wherein the query specifies a set of discrete events of interest; and
for each of the set of discrete events of interest, at at least one of the plurality of nodes, determining when that discrete event occurs and, when that discrete event occurs, transmitting data related to that discrete event. - View Dependent Claims (19, 20)
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Specification