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IPS Indoor Positioning System

IPS Indoor Positioning System. Puneet Arora Anurag Bajad Tao Bi Mike Gruszewski Aviral Mahajan. Team 31. The Problem.

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IPS Indoor Positioning System

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  1. IPSIndoor Positioning System Puneet Arora Anurag Bajad Tao Bi Mike Gruszewski Aviral Mahajan Team 31

  2. The Problem Whenever a sighted person enters a room (especially large areas in large buildings), they instantly and almost subconsciously gather a collection of introductory information, much of which is non-transitory: Where are the exits? Obstacles? Walls? Elevators? Is there an information desk? Restrooms and water fountains? Where are the dangers? Where is the fire extinguisher? Visually impaired people have no such capability to survey each newenvironment. The goal of IPS is to gather all useful information and deliver it to the user in such a way that it allows them to navigate a new environment independently and with ease.

  3. GPS Possible Models Map

  4. Current Solutions • Tactile Map • Guide animals • White canes • Braille on walls and signs • Mobile apps with Accelerometer and Gyro sensor • Not easy to change or very mobile. • The animal can just avoid obstacles, but it can not know the destination. • Canes are only able to detect objects in the vicinity, it has no means of knowing the destination. • Problems with consistency and readability • Accuracy and limited processing power Draw- backs:

  5. System Architecture When the user enters a building supported by IPS, the app downloads pertinent data directly from the server. The app locates the position of the user using Wi-Fi Triangulation. The user can navigate through the building using the app's Voice output feature which will guide the user on its path and will also give various paths to choose from.

  6. System Architecture cont. The app locates the position of the user using Wifi Triangulation. The user can navigate through the building using the app's Voice output feature which will guide the user on its path and will also give various paths to choose from.

  7. Feasibility IPS feasibility relies on the strength of the Wi-Fi Triangulation signal. If the strength is good, the app will accurately determine the position of the user, if not then some extra features like accelerometer needs to be added.

  8. Major Obstacles and Limitations Limited Amount of Wi-Fi Access Points -A building analysis must be conducted for each building to assess the feasibility of the system in said building. If it is concluded that building contains an insufficient amount of access points, then more will need to be installed. Accuracy - The application will only rely on Wifi triangulation to track the movement of the user throughout the building. If the margin of error in the user’s position is greater than one meter, the current design will be updated to include data from the accelerometer to minimize error. Initial Setup of the System - Although the system is designed to use current infrastructure (i.e. the user’s cell phone and the building’s Wifi network), the upfront costs to convert the building’s blueprint to a usable form of data and adding code to the Wi-Fi access points are a necessary cost to implement.

  9. Fig. 2 User Experience Fig. 1

  10. Outcome As per the proposed WBS, it would take 63.5 days to complete IPS. This WBS covers various phases of software development like requirement gathering, investigation, design, development, testing, documentation and deployment and 1 day equals 8 hours of work The cost incurred by customer will be of hardware setup and maintenance. Depending on expected number of daily users, it will vary. If number of users are less, database server can be setup on one of the computers owned by customer. Else, customer needs to buy a small business server which will cost around 500-1000$. Another cost incurred by customer will be of generating blueprints of buildings map. Mostly it will available to with the architects of buildings.

  11. Adoption of the IPS We believe that our system addresses the problem that we set out to solve; to gather all useful information and deliver it to user in such a way that it allows them to navigate a new environment independently and with ease. In addition to addressing the effectiveness of this app to the user, customers will also find our design cost effective, further promoting its usefulness. • Runs on hardware already owned by user • Utilizes Wifi already present in buildings • Collection of useful data already available

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