Low frequency magnetic induction positioning system and method
AssigneeAwarepoint Corporation
InventorsMatthew R. Perkins, Anthony Truscott, Wei Geng
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Abstract
A method and system for determining a real-time location of an object or person in a facility using low frequency magnetic induction positioning is disclosed herein. Each of the plurality of low frequency receivers is configured to receive a signal packet from a low-frequency magnetic induction transmitter, decode the signal packet, and estimate a distance from the low-frequency magnetic induction transmitter to the low-frequency receiver based on the decoded signal packet.
Claims26
A method for determining a real-time location of an object within a facility, the method comprising:
- transmitting a signal packet from at least one low-frequency magnetic induction transmitter of a plurality of low-frequency magnetic induction transmitters, each of the plurality of low-frequency magnetic induction transmitters comprising at least one orthogonally oriented transmit coil, the signal packet comprising a unique transmitter identifier code and a coil orientation code;
- receiving the signal packet at at least one low-frequency receiver;
- decoding the signal packet at the at least one low-frequency receiver to generate a decoded signal packet data;
- and
- estimating a distance from the at least one low-frequency magnetic induction transmitter to the at least one low-frequency receiver based on the decoded signal packet data.
A system for determining a real-time location of an object within a facility, the system comprising:
- a plurality of low-frequency magnetic induction transmitters, each of the plurality of low-frequency magnetic induction transmitters comprising at least one orthogonally oriented transmit coil, each of the plurality of low-frequency magnetic induction transmitters configured to transmit a signal packet comprising a unique transmitter identifier code and a coil orientation code;
- and
- a plurality of low-frequency receivers, each of the plurality of low frequency receivers configured to receive the signal packet, decode the signal packet, and estimate a distance from the low-frequency magnetic induction transmitter to the low-frequency receiver based on the decoded signal packet.
Dependencies are inferred from the claim text.