A method for indoor navigation based on magnetic beacons using smartphones and tablets

Sheinker, Arie; Ginzburg, Boris; Salomonski, Nizan; Frumkis, Lev; Kaplan, B.Z.; Moldwin, M. B.

doi:10.1016/j.measurement.2015.12.023

Cited by 32 publications

(18 citation statements)

References 48 publications

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“…An indoor position determination can also be performed by measuring the magnetic field strengths. Both the geomagnetic field [ 27 ] and an artificially generated magnetic field [ 28 ] can be used. Although there are some approaches using the later, most modern systems use the Earth’s magnetic field strength [ 11 ].…”

Section: Suitable Indoor Positioning Techniques Surveymentioning

confidence: 99%

Development of a Smartphone-Based University Library Navigation and Information Service Employing Wi-Fi Location Fingerprinting

Retscher

Leb

2021

Sensors

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A guidance and information service for a University library based on Wi-Fi signals using fingerprinting as chosen localization method is under development at TU Wien. After a thorough survey of suitable location technologies for the application it was decided to employ mainly Wi-Fi for localization. For that purpose, the availability, performance, and usability of Wi-Fi in selected areas of the library are analyzed in a first step. These tasks include the measurement of Wi-Fi received signal strengths (RSS) of the visible access points (APs) in different areas. The measurements were carried out in different modes, such as static, kinematic and in stop-and-go mode, with six different smartphones. A dependence on the positioning and tracking modes is seen in the tests. Kinematic measurements pose much greater challenges and depend significantly on the duration of a single Wi-Fi scan. For the smartphones, the scan durations differed in the range of 2.4 to 4.1 s resulting in different accuracies for kinematic positioning, as fewer measurements along the trajectories are available for a device with longer scan duration. The investigations indicated also that the achievable localization performance is only on the few meter level due to the small number of APs of the University own Wi-Fi network deployed in the library. A promising solution for performance improvement is the foreseen usage of low-cost Raspberry Pi units serving as Wi-Fi transmitter and receiver.

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Section: Suitable Indoor Positioning Techniques Surveymentioning

confidence: 99%

Development of a Smartphone-Based University Library Navigation and Information Service Employing Wi-Fi Location Fingerprinting

Retscher

Leb

2021

Sensors

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“…This issue needs to be solved by using the angle algorithm method. With the assistance of the DSP coprocessor, this system used the digital orthogonal phase-locked amplifier algorithm [36,37] as shown in Figure 11 to calculate the amplitudes ( V x , V y , and V z ) and phase ( θ x , θ y , and θ z ).…”

Section: Design Of the Signal Conditioning And Processing Subsystemmentioning

confidence: 99%

A Low-cost Electromagnetic Docking Guidance System for Micro Autonomous Underwater Vehicles

Peng

Liu

et al. 2019

Sensors

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As important observational platforms for the Smart Ocean concept, autonomous underwater vehicles (AUVs) that perform long-term observation in fleets are beneficial because they provide large-scale sampling data with a sufficient spatiotemporal resolution. Therefore, a large number of low-cost micro AUVs with docking capability for power recharge and data transmission are essential. This study designed a low-cost electromagnetic docking guidance (EMDG) system for micro AUVs. The EMDG system is composed of a transmitter coil located on the dock and a three-axial search coil magnetometer acting as a receiver. The search coil magnetometer was optimized for small sizes while maintaining sufficient sensitivity. The signal conditioning and processing subsystem was designed to calculate the deflection angle (β) for docking guidance. Underwater docking tests showed that the system can detect the electromagnetic signal and successfully guide AUV docking. The AUV can still perform docking in extreme positions, which cannot be realized through normal optical or acoustic guidance. This study is the first to focus on the EM guidance system for low-cost micro AUVs. The search coil sensor in the AUV is inexpensive and compact so that the system can be equipped on a wide range of AUVs.

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“…Magnetic beacons and receiver with magnetic sensors are attractive for a wide range of indoor events and applications, like pedestrian and robot navigation [14]. Mobile beacons in wireless sensor network (WSN) provide information of world-class applications like forest fire detection and animal tracking [15].…”

Section: Related Workmentioning

confidence: 99%

BeaLib: A Beacon Enabled Smart Library System

Uttarwar¹,

Kumar²,

Chong³

2017

WSN

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Nowadays, Global Positioning Systems (GPS) receivers are used for outdoor navigation, which are the part of recent smartphones and tablet devices. However, GPS is not suitable for indoor navigations due to its signal limitations which are blocked by ceiling and walls. Indoor navigation can be achieved through a mobile phone using a recent technology that utilizes Bluetooth, namely beacons. Beacons are small transmitters, run on Bluetooth Low Energy (BLE) technology, used as a point of reference for mobile devices and they can detect a Bluetooth enabled device once it enters its transmission range. In this paper, we present BeaLib: a beacon assisted indoor navigation technique for smart libraries. The proposed indoor navigation technique can also be used for other applications such as offices, retails, airports, hospitality, and education. For experimentation, beacons are placed in a library and a Bluetooth enabled smartphone is used to install a digital library application (App) which communicates with the beacons. The result shows that when the smartphone comes in the range of a beacon, it shows the information related to the book on the smartphone screen.

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A method for indoor navigation based on magnetic beacons using smartphones and tablets

Cited by 32 publications

References 48 publications

Development of a Smartphone-Based University Library Navigation and Information Service Employing Wi-Fi Location Fingerprinting

Development of a Smartphone-Based University Library Navigation and Information Service Employing Wi-Fi Location Fingerprinting

A Low-cost Electromagnetic Docking Guidance System for Micro Autonomous Underwater Vehicles

BeaLib: A Beacon Enabled Smart Library System

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