smartBike EPSIAE
description
Transcript of smartBike EPSIAE
smartBike
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smartBikeAn adaptive navigation system for e-bikes
EPSIAE Green ICT
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Overview
• Big Picture
• Motivation
• System Architecture
• Server
• Client
• Context Framework
• Sensor Technology
• Future Work
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Big Picture
• Android Navigation App for E-Bikes
• Personal routing
– Age
– Weight
– Fitnesslevel, …
• Adaptive routing
– Current batterylevel has an influence on the routing algorithm
– Redirection over nearby charging stations
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Motivation
• Increase cruising reach
• CO2 awareness
– Show the users how many CO2 they have saved
– Create footprints, graphs
• Motivate people to go by bicycle
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System architecture
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smartBikeAn adaptive navigation system for e-bikes
Routing Server
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Server
• PostgreSQL-Database
• ASP.NET Webservice
– Communication via SOAP - XML
ASP.NET Webservice
NpgSQL
SOAP
PostgreSQL DB
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Why PostgreSQL?
• Open Source DBMS
• PostGIS
– Geospatial querys on a object-relational database
– PostgreSQL-Server as a backend GIS
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pgRouting
• Open Source Routing Library
• Adds routing functionalities to an exisiting PostGIS/PostgreSQL database
– Calculation of shortest paths (Dijkstra, A*)
– Travelling Salesman Problem (TSP)
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OSM-Import
• Osm2po
– Java-based command line tool
– Produces routable SQL files
– Integrated web tool
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Route calculation
• Client requests a new route with a list of GPS-Coordinates (lat/lon) and
an unique user id
• Server mapps coordinates on valid positions
• Calculation of the euclidean distance between the positions
• Nearest-Neighbour-Heuristic is used to find the cheapest connection of all locations
• Route is stored to the database and transmitted to the user
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smartBikeAn adaptive navigation system for e-bikes
Android App (Client)
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Client
• Android App
• Navigation mode
• Communicates with the server via SOAP
• Context Framework provides sensor values (pressure, energy, heading…)
• Shows nearby charging stations
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Client Librarys
• mapsforge
– Mapview
– Offline Maps
– OpenStreetMap Mapmaterial
• kSoap
– RPC for Client Server Communication
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Functions
• Map
– Fully offline mode
– Vector maps, use less space
• Navigation
– User types in there start / endposition
– Server calculates cheapest route
– Client presents the route
– Shows sensorvalues from the arduino
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Client Design
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smartBikeAn adaptive navigation system for e-bikes
Android Context Framework
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Context Awareness
• Context
– is any information that can be used to characterize the situation of an entity. An
entity is a person, place, or object that is considered relevant to the interaction
between a user and an application, including the user and applications themselves.[Anind K. Dey and Gregory D. Abowd]
– Location, Time, Movement, Volumne …
• Context is calculated from sensor values
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Android Context Service
• interface to offer context information to applications
Application 1
Context Service
… Application N
Context Aggregators
Hardware Sensors
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Implementation
• Hardware Sensors
– On Android device and Arduino board
• Context Aggregators
– Combine the output of sensors and context aggregators
– Offer context information
Hardware Sensors
GPS
Context Aggregators
Running
Acc Lightsensor
Driving Moving
…
…
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Architecture
• Framework
– Context Aggregator:
• Input
– Calibration or filters
• Output
– Context is published
– New Context Aggregators can be implemented and
used by interested applications
• Combined to get better and better context information
Moving
Input
Output
AccGPS
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Tasks
• Processes the raw Arduino sensor values
– Altitude changes
– Distance
– Velocity
– Compass
• Offers context information to Green Route Android Application
– To adapt the route according to the new context
– Show information to user
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smartBikeAn adaptive navigation system for e-bikes
Sensor Technology
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Sensor System
• Aim: designing and developing a prototype of a µC-based Sensorsystem
including all relevant sensors for an E-bike Navigation Application
• Calculate all Sensor-Data periodically
• Wireless Transmission of the data to an Android-device
• Android Service as a receiver of the sensor-data
• -> Possibility to save energy with an alternate calculation of the position by
turning off the GPS-receiver partly
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Architecture
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Amarino
• Android meets Arduino
• Toolkit (Android-Lib + Arduino-Lib) to ease the BT-Communication between
Android-Devices and Arduino µC Boards
• It includes a simple frame based communication protocol
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HW-Prototyp – Circuit Layout
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Prototyp
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Summary
• Adaptive navigation system for E-bikes
• Trying to convince people to go by bike
• Using sensors to gather context information and present it to user
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Future Work
• Improve Adaptive Routing
– Taking personal data into account
• Apply navigation functionality
• Calculation of CO2 footprint
• Visualization of following statistics
– Calorie consumption
– Altitude, elevation, speed
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smartBikeAn adaptive navigation system for e-bikes
Thanks for your attention!