WIRELESS NODE AND METHOD OF POWERING A WIRELESS NODE EMPLOYING AMBIENT LIGHT TO CHARGE AN ENERGY STORE

A wireless node, such as a sensor node or other suitable node, includes a supercapacitor having a charge and one or more photocells adapted to charg e the supercapacitor responsive to ambient light. A microprocessor cooperates with a wireless transceiver to transmit a count of one or more wireless m...

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Bibliographische Detailangaben
Hauptverfasser:	LUEBKE, CHARLES J, PLANNING, MATTHEW F, NAEVE, MARCO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION PHYSICS SEMICONDUCTOR DEVICES SIGNALLING SYSTEMS FOR STORING ELECTRIC ENERGY TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILARSIGNALS WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	A wireless node, such as a sensor node or other suitable node, includes a supercapacitor having a charge and one or more photocells adapted to charg e the supercapacitor responsive to ambient light. A microprocessor cooperates with a wireless transceiver to transmit a count of one or more wireless messages. T he microprocessor determines the charge of the supercapacitor, determines an incremental charge of the supercapacitor resulting from the ambient light, a nd adjusts the count of the wireless messages as a function of the charge of the supercapacitor and the incremental charge. A power supply, including a boost regulator and a filter capacitor, powers the microprocessor and the wireless transmitter from the charge of the supercapacitor.