Indoor Location Technology
dc.contributor.author | Evans, Matt | en_US |
dc.contributor.author | Lai, Helen | en_US |
dc.contributor.author | Menchak, Rachel | en_US |
dc.contributor.author | Pichardo, Fernando | en_US |
dc.contributor.advisor | Stein, Jeffrey; Moldwin, Mark | en_US |
dc.date.accessioned | 2016-02-15T21:22:22Z | |
dc.date.available | 2016-02-15T21:22:22Z | |
dc.date.issued | 2015-12-14 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/117339 | |
dc.description | ME450 Capstone Design and Manufacturing Experience: Fall 2015 | en_US |
dc.description.abstract | People rely on GPS to reach destinations, but once the destination is reached, there is no system for navigation to a desired location inside a building. With an indoor positioning system (IPS), users could view their location in a building and determine indoor routes. Additionally, the FCC has set an objective to implement IPS to improve E911 accuracy. Currently, there are over 200 start-ups and large firms in competition to develop IPS, with most utilizing signals such as Bluetooth Low Energy (BLE) or WiFi. A better IPS product can be developed using magnetic positioning to generate a magnetic field using an extremely low frequency (ELF) signal. ELF consumes little energy and can travel through walls and objects; therefore avoiding troublesome issues encountered with BLE and WiFi. The main challenge with magnetic positioning is the size of the copper coil used to generate the magnetic field: it must be large enough to create a strong field, yet small enough for integration as a beacon into building infrastructure. The ELF beacon is rectangular-shaped for placement above doorways to tag users upon entering a room. Tagging occurs when the user’s smartphone magnetometer detects the dipole magnetic field of the beacon. The field is generated using a set-up that mimics a signal generator: Arduino Uno connected to Arduino Motor Shield, running C-code to create an ELF square wave, powered by batteries. By setting each beacon frequency to a distinctive value, user location can be determined based on unique identification. The prototype beacon’s coil was wound by hand; therefore the largest gauge wire could not be used due breakage risk and the prototype is not fully optimized in terms of size. Future plans include winding a 40 gauge copper wire by machine with multiple layers for further size optimization. | en_US |
dc.subject | ME450 | en_US |
dc.subject.other | indoor location | en_US |
dc.subject.other | indoor GPS technology | en_US |
dc.title | Indoor Location Technology | en_US |
dc.type | Project | en_US |
dc.subject.hlbsecondlevel | Mechanical Engineering | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/117339/1/ME450-F15-Project20-FinalReport.pdf | |
dc.owningcollname | Mechanical Engineering, Department of |
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