1. Action Web: Towards Viewing a Mobile World in the First Person
Raghu K. Ganti, Yu-En Tsai, Jung Ahn Han, Nam Pham,
Tarek Abdelzaher, and Michael Ward
Illinois Center for
Wireless Systems
Sponsored by NSF and Microsoft Research
INTRODUCTION
Goal: Develop middleware tools to monitor activities in the world as experienced by their participants (a “first-person” view), as opposed to providing external accounts of the activities (a static camera or “third-person” view)
Sensors emplaced on mobile entities (humans, cars, etc)
User views the world as experienced by the mobile entity
Middleware streams data from entity to user
Integration with Microsoft sensor search portal, SensorMap
Applications:
Personal window (remote personal context reconstruction)
Nature monitoring (a “birds-eye view” - literally)
Data stream
sources
Data stream
processors
Data stream
consumers
Sensor
Web
MIDDLEWARE AND APPLICATION-INDEPENDENT TOOLSET
Architectural goals are to support:
- Mobility: Key issue is that the source is mobile.
- Heterogeneity of sensor data: System must handle a large number of different sensor data types
- Sensor evolvability: New sensors may be added into the architecture with ease
- Data analysis tool evolvability: An extensible set of analysis tools may be used to interpret or view data
- Off-the-shelf compatibility: Design should favor existing tools, standards, and protocols when possible
- Access control: System must ensure privacy and security of data
- Application evolvability: New applications should be easy to introduce
PRELIMINARY IMPLEMENTATION AND DEPLOYMENT
Application: Bioscope
Visualization and access of avian activity data measured by attachable sensors
Application: ActivView
Visualization and access of human activity data measured by wearable sensors
SensorMap object: Jacket instrumented with accelerometers and GPS
SensorMap object: 0.1 gram streaming microphone and beaconing device on a female Cardinal
Archival View
Triangulated Location View
Streaming Audio (bird vocalizations)
GPS Location
View
Activity View
Deployment site near UIUC campus