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Event-based Dissemination and
Processing of Geospatial Information
Welcome, Introduction, Motivation
Pre-conference workshop at the 20th AGILE International Conference
on Geographic Information Science, Wageningen, May 9, 2017
Simon Jirka, Christoph Stasch
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 2
Organizing Committee
Simon Jirka
52°North
Christoph Stasch
52°North
Albert Remke
ESRI Germany
Matthes Rieke
52°North
Andreas Wytzisk
HS Bochum
Alexander Kotsev
JRC
Lars Bernard
TU Dresden
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 3
Schedule
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 4
Participants
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 5
Prospective.HARVEST project
5
How are the infield yield levels up front?
When does the next transport wagon arrive?
Where are the unloading points?
At what time do I have to arrive at the forage
harvester?
How many transport wagons are needed?
How is the ripeness?
What is the best field order?
When is how much biomass
arriving?
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 6
6
Prospective.HARVEST Approach
Geoprocessing Central platform
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 7
General OGC Architecture
Web Map
Service (WMS): Maps as background
images
(jpg, tiff, …)
Web Coverage
Service (WCS):Raster data
(geoTiff, netCDF, …)
Web Feature
Service (WFS): Vector data
(GML, shp)
Web Processing
Service (WPS):Geo-processing,
simulations, …
Sensor
Observation
Service (SOS):Sensor measurements
(O&M, SWE Common,…)
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 8
Traditional Interaction Patterns
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 9
OGC Pub/Sub
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 10
SWE Eventing
• Sensor Alert Service
• Sensor Event Service
• Web Notification Service
• Pub-Sub Extension
• SensorThings API: MQTT
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 11
Sensor Web Eventing Example
Observations
SESSubscribe Alerts
WNS
SMSEmailFax
Phone Call
Notify
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 12
EML Example
• Complex processing (EML based):
– Complex pattern: „low temperature followed by high
temperature“
– a warning per hot period
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 13
EML Example
• Fire detection
• Hot periods combined with smoke detection
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 14
Mainstream Frameworks
Source: https://github.com/cncf/landscape
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 15
Research Topics (i)
Galton, A. “Outline of a Formal Theory of Porcesses and Events, and Why
GIScience Needs One.”In S. I. Fabrikant et al., Spatial Information Theory,
Proceedings of the 12th International Conference COSIT 2015, Springer-
Verlag LNCS 9368, 2015, pages 3-22.
ISBN 978-3-319-23373-4
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 16
Research Topics (ii)
Cugola, G. & Margara, A.
Processing Flows of Information: From Data Stream to Complex Event
Processing
ACM Comput. Surv., ACM, 2012, 44, 15:1-15:62
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 17
Research Topics (iii)
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 18
Goals
• Analyze Requirements
• Identify Gaps/Challenges
• Discuss Research Agenda
• Think about Joint Proposals
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52°North Student Innovation Challenge 2017
“Bridging IoT and Sensor Web Applications ”
• Explore link between IoT & Sensor Web technology. Potential projects:
– IoT clients for feeding data from sensors into Sensor Web infrastructures
– Processing and analysis of observation streams (event streams)
– Integration of heterogeneous IoT data sources by means of Sensor Web and Semantic Web technologies
• Top 3 implement proofs of concepts & present results @ Geospatial Sensor Web Conference 2017
• Application deadline: May 29, 2017
• Prizes: 1st – 2000 €, 2nd – 1000 €, 3rd – 500 € plus travel costs
• Infos: http://52north.org/innovationprize
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 20
Geospatial Sensor Webs Conference 2017
Focus: “ Geospatial Sensor Webs – from data
information in the Sensor Web”
Importance of Sensor Web technology in conjunction with tools for data analysis,
processing and visualization
Status quo & future directions of Sensor Web standards/technology
Challenges of processing Sensor Web data
Dates: August 28 - 30, 2017
Location: FOM in Münster
Call for Presentations
Infos: http://52north.org/conference
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Outlook – Morning Session
Workshop EDPGI at AGILE 2017, Wageningen, 09/05/2017 22
Discussion• Projects/Use Cases/Requirements
– Lorenzo‘s Slide
• Description of Processing Workflows
– Orchestration
– Provenance
– Semantics
• Standards/ Reference Architectures
• Large Datasets/Lamda Architecture
• Data/Event Modelling
• Semantics of Events