Systems and methods of prognosticating damage for structural health monitoring
First Claim
1. A computer-implemented method for prognosticating a structural condition by use of a network having a plurality of diagnostic network patches (DNP), each of the patches being able to operate as at least one of an actuator patch and a receiver patch, at least one of the patches being able to operate as both an actuator patch and a receiver patch, the method comprising:
- (a) causing, by use of a computer processor, the at least one of the patches to emit a transmitter signal and a portion of the other patches to receive a set of sensor signals at a point in time, each said sensor signal being a portion of the transmitter signal emitted by the at least one of the patches and propagated through the structure;
(b) repeating the step (a) to receive multiple sets of sensor signals at multiple points in time, respectively; and
(c) prognosticating, based on the multiple sets of signals, a structural condition of a host structure of the network at a target point in time.
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Accused Products
Abstract
Systems, methods and recordable media for prognosticating a structural condition. A method for prognosticating a structural condition by use of a network having a plurality of diagnostic network patches (DNP), each of the patches being able to operate as at least one of a transmitter patch and a sensor patch, includes the steps of: (a) causing at least one of the patches to emit a transmitter signal and a portion of the other patches to receive a set of sensor signals at a point in time; (b) repeating the step (a) to receive multiple sets of sensor signals at multiple points in time, respectively; and (c) prognosticating, based on the multiple sets of signals, a structural condition of a host structure of the network at a target point in time.
85 Citations
28 Claims
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1. A computer-implemented method for prognosticating a structural condition by use of a network having a plurality of diagnostic network patches (DNP), each of the patches being able to operate as at least one of an actuator patch and a receiver patch, at least one of the patches being able to operate as both an actuator patch and a receiver patch, the method comprising:
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(a) causing, by use of a computer processor, the at least one of the patches to emit a transmitter signal and a portion of the other patches to receive a set of sensor signals at a point in time, each said sensor signal being a portion of the transmitter signal emitted by the at least one of the patches and propagated through the structure; (b) repeating the step (a) to receive multiple sets of sensor signals at multiple points in time, respectively; and (c) prognosticating, based on the multiple sets of signals, a structural condition of a host structure of the network at a target point in time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer-implemented method for prognosticating a structural condition by use of a network having a plurality of sensors, the method comprising:
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preparing a network that includes a plurality of paths and nodes, each of the sensors corresponding to one of the nodes, each path connecting two of the nodes of the network to thereby form an edge of the network, at least one of the sensors being adapted to emit a transmitter signal that propagates through a host structure of the network, the sensors being adapted to receive the transmitter signal emitted by the at least one of the sensors; causing the sensors to obtain a set of sensor signals generated by an external load applied to the host structure at a point in time; analyzing the set of sensor signals by use of the network to characterize the external load and a variation in a structural condition of the host structure; repeating the steps of causing the sensors to obtain a set of sensor signals and analyzing the set of sensor signals to thereby obtain multiple sets of sensor signals from the sensors and variations in the structural condition of the host structure; and prognosticating, based on the multiple sets of sensor signals and the variations in the structural condition, a structural condition of the host structure upon application of an external load to the host structure at a future point in time. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A computer readable medium carrying one or more sequences of instructions for prognosticating a structural condition by use of a network having a plurality of diagnostic network patches (DNP), each of the patches being able to operate as at least one of an actuator patch and a receiver patch, at least one of the patches being able to operate as both an actuator patch and a receiver patch, wherein execution of one or more sequences of instructions by one or more processors causes the one or more processors to perform the steps of:
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(a) causing, by use of a computer processor, the at least one of the patches to emit a transmitter signal and a portion of the other patches to receive a set of sensor signals at a point in time, each said the sensor signal being a portion of the transmitter signal emitted by the at least one of the patches and propagated through a host structure; (b) repeating the step (a) to receive multiple sets of sensor signals at multiple points in time, respectively; and (c) prognosticating, based on the multiple sets of signals, a structural condition of a host structure of the network at a target point in time. - View Dependent Claims (19, 20, 21, 22)
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23. A computer readable medium carrying one or more sequences of instructions for prognosticatlng a structural condition by use of a network having a plurality of sensors, wherein execution of one or more sequences of instructions by one or more processors causes the one or more processors to perform the steps of:
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preparing a network that includes a plurality of paths and nodes, each of the sensors corresponding to one of the nodes, each path connecting two of the nodes of the network to thereby form an edge of the network, at least one of the sensors being adapted to emit a transmitter signal that propagates through a host structure of the network, the sensors being adapted to receive the transmitter signal emitted by the at least one of the sensors; causing the sensors to obtain a set of sensor signals generated by an external load applied to the host structure at a point in time; analyzing the set of sensor signals by use of the network to characterize the external load and a variation in a structural condition of the host structure; repeating the steps of causing the sensors to obtain a set of sensor signals and analyzing the set of sensor signals to thereby obtain multiple sets of sensor signals from the sensors and variations in the structural condition of the host structure; and prognosticating, based on the multiple sets of sensor signals and the variations in the structural condition, a structural condition of the host structure upon application of an external load to the host structure at a future point in time. - View Dependent Claims (24, 25)
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26. A processor for prognosticating a structural condition, the processor being adapted to be included in a system having a network to be coupled to a host structure and having a plurality of diagnostic network patches (DNP), each of the patches being able to operate as at least one of an actuator patch and a receiver patch, the processor being further adapted to:
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cause a first set of the patches to emit a first set of transmitter signals and a portion of the other patches to receive a first set of sensor signals at a first point in time, each of the first set of sensor signals being a portion of the first set of transmitter signals emitted by the first set of the patches and propagated through the host structure; cause a second set of the patches to emit a second set of transmitter signals and a portion of the other patches to receive a second set of sensor signals at a second point in time, each of the second set of sensor signals being a portion of the second set of transmitter signals emitted by the second set of the patches and propagated through the host structure; generate multiple sets of sensor signals including the first and second sets of sensor signals; and prognosticate, based on the multiple sets of sensor signals, a structural condition of the host structure at a target point in time. - View Dependent Claims (27, 28)
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Specification