International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 03 | Mar -2017
p-ISSN: 2395-0072
www.irjet.net
Indoor Positioning System using Magnetic Positioning and BLE beacons Prof.Manoj.V. Bramhe1, Jeetendra Gan2, Nayan Ghodpage3, Ankit Nawale4, Gurendra Bahe5 1Associate
Professor & HOD, Dept of Information Technology, St. Vincent Pallotti College of Engineering and Technology, Nagpur, India 2,3,4,5U.G. Student, Dept of Information Technology, SVPCET, Nagpur ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract-Global positioning system(GPS) does not work indoors due to attenuation of signals. Hence, creating indoor context aware applications using GPS is not possible. Indoor positioning systems locate objects, people and assets indoors. There is an array of indoor positioning techniques and technologies that have been developed till date. There is no standard technique for implementing Indoor Position Systems (IPS), as each technique has its own advantages and drawbacks. The best IPS implementations often employ the use of multiple techniques within a building in order to maximize precision. In this paper we present a technology known as magnetic positioning system) that determines location using disturbances of the Earth's magnetic field caused by structural steel elements in a building thus creating a magnetic fingerprint. We will be using IndoorAtlas’s API for gathering the fingerprints. After fingerprint collection, a mobile application installed on a smart-phone that is equipped with magnetometer would make an API call to retrieve the location. Bluetooth low energy (BLE) beacons will be used to get a location fix quicker. Once the location of the smart-phone has been fetched, it can be used to create various context aware applications indoors. Keywords: IPS: Indoor positioning system, GPS: Global Positioning system, Localization, Magnetic localization, IndoorAtlas, Bluetooth Low Energy beacons.
I. INTRODUCTION An indoor positioning system (IPS) is a solution to locate objects or people inside a building using radio waves, magnetic fields, acoustic signals, or other sensory information collected by mobile devices. Global positioning system (GPS) is the most widely used satellite-based positioning system, which offers maximum coverage. However, GPS cannot be deployed for indoor use, because line-of-sight transmission between receivers and satellites is not possible in an indoor environment. Comparing with the outdoor environment, indoor environment is more complex. There are various obstacles, for example, walls, equipment, human beings, influencing the propagation of electromagnetic waves, which lead to multi-path effects. Some interference and noise sources from other wired and wireless networks degrade the accuracy of positioning. A number of indoor positioning techniques have been proposed, but none of them is deployable in most campuses, in spite of their acceptable accuracy in experiments. The primary reason is that, to work properly, all of them have specific assumptions about parameters, like infrastructure, environment, and user behaviours. Today, most application requirements are locating or real-time tracking of physical belongings inside campuses accurately; thus, the demand for indoor localization services has become a key prerequisite in some markets. Moreover, Indoor Localization technologies address the inadequacy of global positioning system inside a closed environment, like campuses. Indoor positioning systems have a lot of use cases, some of the applications of IPSs are hospitals and healthcare. IPSs can be integrated with GPS to guide patients from their home seamlessly all the way to the doctor’s appointment. IPS can be used to automate check-ins and notify medical staff of patient whereabouts, locate staff, colleagues and equipment in real-time within the hospital. IPSs can also be used in retail to enable a personalized shopping experience in the visitors’ smart-phones. IPSs can be used to provide Google navigation like way-finding indoors. IPSs can be used at public transport stations like airports, bus stops, railway stations, etc. to reduce the anxiety and stress for passengers by providing information relevant to their context, present the shortest route, and estimated walking time to the gate. Help passengers discover what restaurants are nearby, or where the closest toilet is located in the terminal. An accurate indoor positioning system opens a lot of doors and enables the implementation of a lot of use cases in virtual reality, augmented reality and context aware gaming.
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