An Indoor AC Magnetic Positioning System

Abstract

This paper describes the design and realization of a Magnetic Indoor Positioning System. The system is entirely realized using off-the-shelf components and is based on inductive coupling between resonating coils. Both system-level architecture and realization details are described along with experimental results. The realized system exhibits a maximum positioning error of less than 10 cm in an indoor environment over a 3×3 m 2 area. Extensive experiments in larger areas, in non-line-of-sight conditions, and in unfavorable geometric configurations, show sub-meter accuracy, thus validating the robustness of the system with respect to other existing solutions.

Design and Analysis of a Mutual Inductance Coupling-Based Microdeformation Sensor

“…7(b). The three x-axis crossed rollers (TAM-401C, Sigma Koki Company Ltd., Japan) 5 are used to place the end face of the glass tube where the Rx coils are fixed at the center of rotation stage (RSM82-1A, Zolix Company Ltd., China) 10 . The x y-axis crossed roller (XYSPG60, MISUMI Corporation Ltd., Japan) 9 is to ensure the Tx coil points to center of 10 and adjust the longitudinal compression ρ.…”

“…According to the difference between coil configurations, the applications can be divided into 1-D range and displacement detection by coaxial coils [4], 2-D planar positioning [5], and 3-D orientation tracking by multiple orthogonal transmitter/receiver coils [6]. Using two coaxial coils, Dionigi et al [4] presented a 1-D ranging system based on inductive coupling with a maximum error less than 3 cm over a 5.8 m range.…”

“…Using two coaxial coils, Dionigi et al [4] presented a 1-D ranging system based on inductive coupling with a maximum error less than 3 cm over a 5.8 m range. De Angelis et al [5] extended it to realize a 2-D planar position detection system through three transmitting coils with a maximum error less than 10 cm over a 3×3 m 2 . Aschenbrenner and Zagar [2] designed a planar position measurement system using a planar excitation coil and multiple planar receiver coils with a nonlinear error mostly within ±0.04% over 90% of the range 20-370 mm.…”

A novel method for overcoming the impact of spatially varying ambient magnetic fields on a DC magnetic field-based tracking system

“…for robot navigation and underground cavity mapping. De Angelis et al (2015) describe the design and implementation of an indoor positioning system, which is based also on AC magnetic fields. The position of the receiver node is calculated using the trilateration method and the received rMS voltages induced by the transmitter coils.…”

Study on Improved Flight Coefficient Estimation and Trajectory Analysis of a Flying Disc through Onboard Magnetometer Measurements

“…A preliminary result for indoor positioning is presented by designing a cluster of pulsed magnetic signals to obtain relative distances [10]. Alternating magnetic measurements generated from multiple source coils are used for computing the distance from the transmitter node to the receiver node, and then a trilateration method is applied for localization [11]. Recently, the study was extended to cover orientation as well as 3D localization under a spatial test region [12].…”