Integrating Volunteered Human Sensor Data into Crowd-sourced Platforms- A Use case on Noise Pollution Monitoring and OpenStreetMap

IntegratingVolunteered Human Sensor Data intoCrowd-sourcedPlatforms- A Usecase on Noise Pollution Monitoring andOpenStreetMap
6 October 2011
Theodor Foerster, Laura Diaz & Arne Bröring

VolunteeredGeographic Information
02.05.2000 – selectiveavailability
Unauthoritivedata
Bottom-up
Users contributedata
Wikipedia, OpenStreetMap, WikiMapia, FixMyStreet, Flickr
Lightweight-systems & protocols

Smartphones
Multi-sensor platform
In yourpocket (anywhere, anytime)
GPS, camera, microphone, accelerometer, pressure, magneticfield, light
3G andWiFiconnection
Enablescrowd-sourcing /crowd-sensing
VGI

www.eyeonearth.eu

Other examples
Noisetube.net
www.opennoisemap.org

Common problem
Silos ofinformation
Novisibility
Nocommondataaccess
Services not in place
Toocomplex
Not alwayscompliant

Noise as environmental pollution
Effects
Hearing loss
Cardiological effects
Stress
Annoyance
Emitters
Airports, cars, industrial sites, neighborhood, etc.
Subjective
Cannot be modeled or calculated

Legal motivation
source: European Commission
Simulated, complex, non-subjective, etc.

Manual & automated noise assessment
Mobile & browser-based visualization
Repository of noise measures
Acknowledgement:
Appel, de Wall, Hopmann, Roß.

OpenStreetMap
Collaborative and open platform
Inventoryofoutdoorobjects
Roads, Crossings, Buildings, POIs
Simple datamodel
Points, lines, tags
Updates throughchangesets
Access through APIs

Approach
Publishcontent on commonplatform
OpenStreetMap
Assign tag toexistingornew OSM object
Tags formeasuredproperty
Visualizethroughspecificrenderers

Implementation
Noise community
Web Processing Service
OSM API
Publication Service
12

Example
OSM API query select
http://api.openstreetmap.org/api/0.6/map?bbox=7.573375599999999,51.9294798,7.5753756,51.9314798
OSM API query  update
<?xml version="1.0" encoding="UTF-8" ?>
<osm generator="OpenStreetMap server" version="0.6">
<node changeset="8712284" id="273968126" lat="51.9310517" lon="7.5706349" timestamp="2011-07-12T14:25:37Z" uid="478890" user="A_user" version="3" visible="true">
<tag k="noise_day" v="50.1" />
</node>
</osm>

Examplecontd.

Open issues
Data licensecompatibility
Rendererrequired
Discussionwith OSM aboutscalabilityandappropriate tags

Conclusion
Crowd-sourceddataneeds a suitableplatform
More visibility
OSM suitable
High visibility & directdataaccess
Future research
Specificrenderers
Specific tag convention

Thanksforyourattention!
swsl.uni-muenster.de
gi-zeitgeist.uni-muenster.de

http://swsl.uni-muenster.de	95
http://sensorweb.uni-muenster.de	8
http://www.openthingsmap.org	1

Integrating Volunteered Human Sensor Data into Crowd-sourced Platforms- A Use case on Noise Pollution Monitoring and OpenStreetMap

by Dr. Theodor Foerster on Oct 06, 2011

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Integrating Volunteered Human Sensor Data into Crowd-sourced Platforms- A Use case on Noise Pollution Monitoring and OpenStreetMap — Presentation Transcript