INDOOR POSITIONING AND GUIDANCE SYSTEM BASED ON EXTREMELY LOW FREQUENCY MAGNETIC FIELD BEACONS AND MOBILE DEVICES, AND ASSOCIATED METHOD

INDOOR POSITIONING AND GUIDANCE SYSTEM BASED ON EXTREMELY LOW FREQUENCY MAGNETIC FIELD BEACONS AND MOBILE DEVICES, AND ASSOCIATED METHOD

The present invention relates to an indoor positioning and guidance system based on extremely low frequency, ELF, magnetic fields, and an associated method. The system comprises a plurality of beacons (1), and at least one receiver (2) adapted to be carried by a user. The beacons (1) comprise at lea...

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Hauptverfasser: RODRÍGUEZ VÁZQUEZ, Antonio Leopoldo, FREIRE ROSALES, Manuel José, BERNAL MÉNDEZ, Joaquín, MARTÍN PRATS, María Ángeles
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
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creator RODRÍGUEZ VÁZQUEZ, Antonio Leopoldo
FREIRE ROSALES, Manuel José
BERNAL MÉNDEZ, Joaquín
MARTÍN PRATS, María Ángeles
description The present invention relates to an indoor positioning and guidance system based on extremely low frequency, ELF, magnetic fields, and an associated method. The system comprises a plurality of beacons (1), and at least one receiver (2) adapted to be carried by a user. The beacons (1) comprise at least one ELF receiving coil (11), at least one ELF generation coil (12), an ELF field generator (13) and a power control means (14) connected to the ELF generation coil (12). The receiver (2) comprises a magnetometer sensor (5) adapted to detect ELF field signals transmitted by the ELF generation coil (12). Advantageously in the invention, the ELF field generator (13) is further adapted to generate ELF field signals comprising: one or more positioning subcarriers (15); one or more beacon-receiver subcarriers (16); and one or more inter-beacon subcarriers (17) configuring an inter-beacon communications channel for managing information exchanged between neighbouring beacons (1).
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language eng ; fre ; ger
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subjects ANALOGOUS ARRANGEMENTS USING OTHER WAVES
DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES
LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES
MEASURING
PHYSICS
RADIO DIRECTION-FINDING
RADIO NAVIGATION
TESTING
title INDOOR POSITIONING AND GUIDANCE SYSTEM BASED ON EXTREMELY LOW FREQUENCY MAGNETIC FIELD BEACONS AND MOBILE DEVICES, AND ASSOCIATED METHOD
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