Energy harvesting for wireless sensor operation and data transmission
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0 Petitions
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
85 Claims
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1-76. -76. (canceled)
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77. An electronic system, comprising:
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a moving part;
an energy harvesting device mounted to convert mechanical energy of said moving part into electrical energy;
a rechargeable power supply connected to receive electrical energy from said energy harvesting device;
an electronic component connectable for using energy derived from said rechargeable power supply; and
a micro-controller connected to receive a signal indicating state of charge of said rechargeable power supply, said micro-controller further connected to control said electronic component, wherein said micro-controller controls operation of said component based on said signal. - View Dependent Claims (78, 79, 80, 81, 82, 83, 84, 85)
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Specification