High sensitivity environmental sensor network and network services for structural health monitoring
First Claim
1. A high sensitivity structural health monitoring network, the network comprising:
- a plurality of sensor nodes disposed apart from each other and communicating through one or more sensor channels, each sensor node comprising a smart sensor circuit board, the sensor board comprising;
an interface to a wireless smart sensor board platform;
a multi-axis accelerometer having a sensitivity that can measure ambient structural vibrations resulting from non-catastrophic routine environmental factors;
an analog to digital converter (ADC) for converting signals from the multi-axis accelerometer, the ADC having a plurality of individual channels, each channel including being individually programmable for signal conditioning for providing data to said interface;
a network framework providing network services for the plurality of sensor nodes through the one or more sensor channels, the network framework including a time synchronization service with network-wide global synchronization for sensor data and a unified sensing service that supports collection of data for all sensor channels from all nodes together.
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Abstract
A high sensitivity structural health monitoring network includes a plurality of sensor nodes disposed apart from each other and communicating through one or more sensor channels. The nodes include smart sensor circuit boards with an interface to a wireless smart sensor board platform, a multi-axis accelerometer having a measurement range and resolution set to provide sensitivity to measure ambient structural vibrations an analog to digital converter for converting signals that includes a plurality of individual channels being individually programmable for signal conditioning for providing data to the interface. A network framework provides network services including a time synchronization service with network-wide global timestamps for sensor data and a unified sensing service that supports collection of data for all sensor channels from all nodes together with a single set of associated time stamps.
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Citations
19 Claims
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1. A high sensitivity structural health monitoring network, the network comprising:
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a plurality of sensor nodes disposed apart from each other and communicating through one or more sensor channels, each sensor node comprising a smart sensor circuit board, the sensor board comprising; an interface to a wireless smart sensor board platform; a multi-axis accelerometer having a sensitivity that can measure ambient structural vibrations resulting from non-catastrophic routine environmental factors; an analog to digital converter (ADC) for converting signals from the multi-axis accelerometer, the ADC having a plurality of individual channels, each channel including being individually programmable for signal conditioning for providing data to said interface; a network framework providing network services for the plurality of sensor nodes through the one or more sensor channels, the network framework including a time synchronization service with network-wide global synchronization for sensor data and a unified sensing service that supports collection of data for all sensor channels from all nodes together. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A high sensitivity structural health monitoring network, the network comprising:
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a plurality of sensor nodes disposed apart from each other and communicating through one or more sensor channels, each sensor node comprising a smart sensor circuit board, the sensor board comprising; an interface to a wireless smart sensor board platform; a multi-axis accelerometer having a sensitivity that can measure ambient structural vibrations resulting from non-catastrophic routine environmental factors; an analog to digital converter (ADC) for converting signals from the multi-axis accelerometer, the ADC having a plurality of individual channels, each channel including being individually programmable for signal conditioning for providing data to said interface; network service means for managing synchronization and collection of data from the plurality of sensor nodes. - View Dependent Claims (18, 19)
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Specification