Miyatake YLiang R.-H|BING-YU CHENSiio I.2022-04-262022-04-262021https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105794461&doi=10.1145%2f3411763.3451841&partnerID=40&md5=f78346af970cb1c67ef065c4760baa61https://scholars.lib.ntu.edu.tw/handle/123456789/608037In this paper, we propose FieldSweep, a tracking method on a plane using only permanent magnets and a smartphone. This method estimates the position of a magnetic sensor on a plane using the magnetic fields of permanent magnets placed at an appropriate pattern. The magnetic sensor is a built-in one in a smartphone. Since the planar side consists of only magnets and a plate for fixing the magnet, no power supply or electronic components are required for the system. In this paper, we report the necessary conditions for tracking, present the implemented prototype, and discuss possible future developments and applications. ? 2021 ACM.InteractionMagnetic-field SensingSmartphoneHuman engineeringMagnetic sensorsMagnetismPermanent magnetsSoftware prototypingTracking (position)2D trackingA-planeElectronic componentPossible futuresPower supplyTracking methodSmartphones[SDGs]SDG7conference paper10.1145/3411763.34518412-s2.0-85105794461