1. The SID Creator A Visual Approach for Integrating Sensors with the Sensor Web
Arne Brring, Felix Bache, Thomas Bartoschek, Corn v. Elzakker
AGILE, 20th April 2011

2. Motivation: Sensor Plug & Play
Arne Broering - broering@52north.org

3. Problem: Interoperability Gap
Application Layer
Sensor Web Layer
Sensor Layer
Arne Broering - broering@52north.org

4. Sensor Interface Descriptors (SID)
Bridging Sensor Protocol SWE Protocol
Model to declaratively describe sensor interface:
Communication protocol
Sensor commands
Processing steps
Metadata association
SID instances: re-usable and exchangeable
Generic SID Interpreter translates:
Sensor protocol Sensor Web protocol
Arne Broering - broering@52north.org

5. Sensor Interface Descriptors (SID)
Sensor Web Layer
Sensor Layer
Arne Broering - broering@52north.org

6. SID Model
Arne Broering - broering@52north.org

7. How to generate SID instances?
The SID Creator
Arne Broering - broering@52north.org

8.

9. UseCase: School Weather Station
10 high schoolstudents
10 universitystudents
Task
Integrateweatherstationwith
a Sensor Observation Service
Think Aloud method
Arne Broering - broering@52north.org

10. UseCase: School Weather Station

11. Creation of an SID
Sensor Data:
Station|16.09.2010_12:56|10530Q|#
Status|16.09.2010_12:56|72|#
Wind01|16.09.2010_12:56|42.0|23.0|#
:
Block
Field
SID:
Structure Separation:
Block= #
Field= |
Decimal Numbers= .
Data Block 1:
Field 1 = Block_Identifier Value: Wind01
Field 2 = time
Field 3 = wind_speed
Field 4 = wind_direction
:

12.

13. Association with Observation Metadata
Observed Property := Wind Speed
Phenomenon Time
Result
Feature := High School Havixbeck
23 m/s 16.9.2010 13:45
Unit of measure
Procedure := DAVIS_123
Observation Offering:= Weather
Arne Broering - broering@52north.org

14.

15. Evaluation of UsabilityStudy
Arne Broering - broering@52north.org

16. Evaluation of UsabilityStudy
Successfulcreation of SID:
High School students:2 / 10
University students:6 / 10
Fully / partly / notunderstood SID?
High School students:4, 3, 3
University students:9, 1, 0
SID creationeasierthanadapterimplementation?
5 / 5 students: yes
Arne Broering - broering@52north.org

17. Conclusions & Outlook
SID Creator facilitatessensorintegration
SID Creator doesnotyetsupportfull SID model
Not all sensorprotocolscanbedescribed.
Vision:
Sharing of SID instancesamongusercommunities
Creation of SIDsbysensormanufactures
Arne Broering - broering@52north.org

18. Questions?
Thank you!
Arne Broering
SID project @ 52North:http://52north.org/sid
Sensor Web lab @ IfGI:http://swsl.uni-muenster.de