Wind Turbines and Other Rotating Structures with Instrumented Load-Sensor Bolts or Instrumented Load-Sensor Blades
First Claim
1. A turbine, comprising a turbine blade, a plurality of sensors and a wireless sensor module, a data aggregator, and a blade pitch control unit, wherein said plurality of sensors are distributed in a plurality of locations on said turbine blade suitable for determining a moment of said turbine blade, wherein said sensor module is configured to transmit data to said data aggregator to determine said moment, wherein said data aggregator is configured to provide an output to said blade pitch control unit, wherein said blade pitch control unit is configured to adjust pitch of said turbine blade based on said moment.
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Accused Products
Abstract
A turbine includes a turbine blade, a plurality of sensors, a wireless sensor module, a data aggregator, and a blade pitch control unit. The plurality of sensors are distributed in a plurality of locations on the turbine blade suitable for determining a moment of the turbine blade. The sensor module is configured to transmit data to the data aggregator to determine the moment. The data aggregator is configured to provide an output to the blade pitch control unit. The blade pitch control unit is configured to adjust pitch of the turbine blade based on the moment.
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Citations
50 Claims
- 1. A turbine, comprising a turbine blade, a plurality of sensors and a wireless sensor module, a data aggregator, and a blade pitch control unit, wherein said plurality of sensors are distributed in a plurality of locations on said turbine blade suitable for determining a moment of said turbine blade, wherein said sensor module is configured to transmit data to said data aggregator to determine said moment, wherein said data aggregator is configured to provide an output to said blade pitch control unit, wherein said blade pitch control unit is configured to adjust pitch of said turbine blade based on said moment.
- 32. A system, comprising a plurality of wireless data collecting devices sampling simultaneously, wherein each of said plurality of wireless data collecting devices includes a real time clock and a receiver, further comprising a base station, wherein said base station includes a transmitter for transmitting a beacon for maintaining said real time clocks synchronous with each other, wherein said receiver is for receiving said beacon, wherein each of said plurality of wireless data collecting devices includes a processor and a memory, wherein said memory includes a program for sampling data on a schedule determined by time from said clock, wherein said schedule is the same for each of said plurality of wireless data collecting devices.
- 38. A wireless data collection and storage device, comprising a housing including a sensor, a processor, a clock, a high speed low power non-volatile data storage device, and a transceiver, wherein said a high speed low power non-volatile data storage device uses less than 6 nJ per byte of data stored in non-volatile memory when storing at a rate exceeding 50,000 samples per second.
- 42. An energy harvesting system, comprising an energy harvesting device having a flexure element having a mechanical disadvantage, wherein said flexure element is precompressed and bonded exclusively at one end.
- 44. An energy harvesting system, comprising a mechanical device, a magnet, and a coil, wherein said mechanical device includes linked flexure elements that provide curvilinear relative motion between said magnet and said coil.
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46. An energy harvesting system, comprising a pair of magnets, wherein each member of said pair has same poles, wherein said same poles are held facing each other in said pair.
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47. An energy harvesting system for harvesting energy from a vibrating surface, comprising a resonant flexure element and an accelerometer, wherein said accelerometer is mounted to receive vibration energy from the vibrating surface and wherein said accelerometer is isolated from said resonant flexure element.
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48. A wind turbine, comprising a wind turbine blade, a smart fastener, and a hub, wherein said smart fastener connects said wind turbine blade to said hub, wherein said smart fastener includes a sensor and an electronic circuit, wherein said sensor is positioned for sensing load on said smart fastener, and wherein said electronic circuit is connected to said sensor for receiving data detected by said sensor.
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49. A method of sampling data, comprising:
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providing a plurality of wireless nodes, wherein each said wireless node includes a receiver and a real time clock; broadcasting a common beacon; using said common beacon in each of said wireless nodes to synchronize said real time clocks; and performing an action simultaneously in all said wireless nodes, wherein timing in each said wireless node is determined by said synchronized real time clock. - View Dependent Claims (50)
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Specification