APPARATUS AND METHOD FOR RECHARGE-TRIGGERED WAKE-UP FOR POWER MANAGEMENT IN WIRELESS SENSOR NETWORKS
First Claim
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1. A wireless sensor network including a plurality of wireless sensor nodes, each of the plurality of wireless sensor nodes comprising:
- a sensor;
a sensor activation switch;
a memory including a data buffer;
an energy harvester;
a capacitor switching bank;
a capacitor bank including a plurality of capacitors;
a wireless interface; and
a controller,wherein the energy harvester charges one or more capacitors of the plurality of capacitors, as connected by the capacitor switching bank.
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Abstract
Disclosed is a wireless sensor network that includes a plurality of wireless sensor nodes having a sensor, a sensor activation switch, a memory having a data buffer, an energy harvester, a capacitor switching bank having more than one switch, a capacitor bank having a corresponding number of capacitors, a wireless interface, and a controller. The capacitor switching bank is provided between the capacitor bank and the energy harvester, and the energy harvester provides power to charge capacitors of the plurality of capacitors connected by the capacitor switching bank.
19 Citations
9 Claims
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1. A wireless sensor network including a plurality of wireless sensor nodes, each of the plurality of wireless sensor nodes comprising:
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a sensor; a sensor activation switch; a memory including a data buffer; an energy harvester; a capacitor switching bank; a capacitor bank including a plurality of capacitors; a wireless interface; and a controller, wherein the energy harvester charges one or more capacitors of the plurality of capacitors, as connected by the capacitor switching bank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification