Energy harvesting for wireless sensor operation and data transmission
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Accused Products
Abstract
A device for powering a load from an ambient source of energy is provided. The device includes an energy harvesting device for harvesting energy from the ambient source of energy wherein the rate energy is harvested from the ambient source of energy is below that required for directly powering the load. A storage device is connected to the energy harvesting device. The storage device receives electrical energy from the energy harvesting device and is for storing the electrical energy. A controller is connected to the storage device for monitoring the amount of electrical energy stored in the storage device and for switchably connecting the storage device to the load when the stored energy exceeds a first threshold. The system can be used for powering a sensor and for transmitting sensor data, such as tire pressure.
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Citations
93 Claims
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1-76. -76. (canceled)
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77. A system for measuring a parameter of a moving part, comprising:
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a moving part;
an energy harvesting device mounted on said moving part for harvesting energy from movement of said moving part;
a sensor mounted on said moving part for measuring a parameter of said moving part;
a memory device mounted on said moving part for storing said sensor measurement; and
a transmitter mounted on said moving part for transmitting at least one from the group including said measurement and data derived from said measurement, wherein said transmitter is powered by energy derived from said energy harvesting device. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93)
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Specification