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Inomhuspositioneringssystem: Personlig navigation inomhus via mobiltelefon
KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
2015 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Indoor Positioning System : Personal indoor navigation via mobile phone (English)
Abstract [sv]

GPS används idag för personlig navigering men dessvärre är GPS beroende av fri sikt och presterar sämre i en inomhusmiljö. Ett IPS, inomhuspositioneringssystem, skulle komplet-tera GPS:ens funktion samt öppna dörrar för nya användningsområden inom positionering. I detta examensarbete studerades metoder och tekniker för att möjliggöra ett IPS för en mo-bil enhet. Där teknikerna och metoderna verifieras för att kunna implementeras i en mobil-telefon.En prototyp för ett IPS framställdes för att utreda möjligheterna att navigera i en inomhus-miljö. En radiofingeravtrycksmetod baserat på RSSI-mätningar från Bluetooth-enheter im-plementerades och integrerades med en dödräkningsmetod som använder en IMU för att positionera användaren. Utefter tester och simuleringar utförts presenteras resultatet i form av figurer och tabeller. Med hjälp av prototypen går det att navigera med ett medelfel på 0,26m. Resultatet visar också på att en integrering av två metoder är att föredra då de kan komplettera varandras svagheter.

Abstract [en]

The GPS is used today for personal navigation, however GPS performs less well in an in-door environment due to the dependency of line of sight. The IPS, Indoor Positioning Sys-tem, will complement the function of the GPS and open doors for new applications. In this thesis studies of methods and techniques are made to enable IPS for a portable device. These techniques and methods are verified that they could be implemented in a smartphone.A prototype was designed to examine the possibility to navigate in an indoor environment. The prototype was built on a RSSI-based radio fingerprinting method over Bluetooth. This method was integrated with a dead reckoning system using an IMU to follow the motions of the user. Tests and simulations are performed along with the results presented in tables and figures. The result shows that it is possible to navigate using the prototype with a mean error of 0.26m. Results are also showing that two methods are to prefer, as they will com-plement each other’s weaknesses.

Place, publisher, year, edition, pages
2015. , 58 p.
Series
TRITA-STH, 2015:035
Keyword [en]
Navigate, IPS, radio fingerprinting, RSSI, Bluetooth, dead reckoning, IMU, smart phone
Keyword [sv]
Navigera, IPS, radiofingeravtryck, RSSI, Bluetooth, dödräkning, IMU, mobiltelefon
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-168988OAI: oai:DiVA.org:kth-168988DiVA: diva2:819109
Subject / course
Electronics and Communications
Educational program
Bachelor of Science in Engineering - Electrical Engineering
Supervisors
Examiners
Available from: 2015-06-12 Created: 2015-06-10 Last updated: 2015-06-12Bibliographically approved

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IPS_prototyp(2748 kB)175 downloads
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55d88b8c5fa9c91030885a0024aca9277b88c5fa0d46acada5683520ccf387fc6b6e5fc585cf248dc579e1f97badb228f80bf3682f898d87ea68150bd1c2439a
Type fulltextMimetype application/pdf

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CiteExportLink to record
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Citation style
  • apa
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Output format
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