RFID power control and monitoring system
First Claim
1. An RFID system comprising:
- a hybrid sensor tag, comprising an active RFID circuit and a passive RFID circuit, the active RFID circuit being communicatively coupled to the passive RFID circuit;
an interrogator, operative to wirelessly communicate with the passive RFID circuit; and
a scanner, operative to wirelessly communicate with the active RFID circuit,wherein the passive RFID circuit is operative to enable the active RFID circuit when the active RFID circuit is in a sleep mode.
1 Assignment
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Accused Products
Abstract
A system for monitoring parameters associated with a device, such as current, voltage, power, temperature, energy consumed, moisture, fluid levels and flow, wind speed, identification parameters, and repair history. The system includes the use of hybrid RFID sensor tags including a combination of active, semi-passive, and passive RFID circuits. Hybrid tags are attached to electrical system components. Standalone electrical components and generators and those connected to the electrical grid may be monitored. Data collected and stored in the hybrid tags may be accessed via a wireless communication link between hybrid tags and either active scanners or a passive interrogators. The data collected and processed from the hybrid tags may be provided to a user via the Internet or another wired or wireless communication network.
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Citations
37 Claims
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1. An RFID system comprising:
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a hybrid sensor tag, comprising an active RFID circuit and a passive RFID circuit, the active RFID circuit being communicatively coupled to the passive RFID circuit; an interrogator, operative to wirelessly communicate with the passive RFID circuit; and a scanner, operative to wirelessly communicate with the active RFID circuit, wherein the passive RFID circuit is operative to enable the active RFID circuit when the active RFID circuit is in a sleep mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A hybrid sensor tag comprising:
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an active RFID circuit, powered by an energy source located within the tag; and a passive RFID circuit, communicatively coupled to the active RFID circuit; wherein the passive RFID circuit is operative to enable the active RFID circuit when the active RFID circuit is in a sleep mode, and wherein the hybrid sensor tag is operative to communicate with RFID nodes. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A hybrid sensor tag comprising:
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an active RFID circuit, powered by an energy source located within the tag; and a passive RFID circuit, communicatively coupled to the active RFID circuit; wherein the hybrid sensor tag is operative to communicate with RFID nodes, wherein the passive RFID circuit is operative to repetitively enable the active RFID circuit when the active RFID circuit is in a sleep mode with a predetermined period, and wherein the active RFID circuit is operative to enter the sleep mode after a predetermined period of time elapses after the active circuit is enabled. - View Dependent Claims (34, 35, 36, 37)
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Specification