Ifgi Institute for Geoinformatics 7th EC-GIS Workshop Potsdam, Optimization of field data management using mobile GIS, wireless technologies, distributed simulation-, and visualization systems Ingo Simonis (Institute for Geoinformatics, Münster)

Ifgi Institute for Geoinformatics Current situation of data acquisition Mobile Communication High Level Architecture – HLA Momeno-Project Outlook Agenda

Ifgi Institute for Geoinformatics Field data acquisition Situation Data acquisition and processing are two distinct processes

Ifgi Institute for Geoinformatics Current Situation Situation Data acquisition and processing are two distinct processes Time consuming Expensive

Ifgi Institute for Geoinformatics Requirements Situation What is needed? User does the data acquisition in the field

Ifgi Institute for Geoinformatics Requirements Situation What is needed? User takes the data acquisition in the field User defines the required type of processing

Ifgi Institute for Geoinformatics Requirements Situation What is needed? User takes the data acquisition in the field User defines the required type of processing User sends the data to a remote system

Ifgi Institute for Geoinformatics Requirements Situation What is needed? User takes the data acquisition in the field User defines the required type of processing User sends the data to a remote system Processed data will be sent back to the user

Ifgi Institute for Geoinformatics Solution Situation Mobile Communication Distributed simulation and visualization capabilities High Level Architecture How to achieve this goal?

Ifgi Institute for Geoinformatics Solution Situation Mobile Communication Distributed simulation and visualization capabilities High Level Architecture Mobile Communication

Ifgi Institute for Geoinformatics Technologies Mobile Communication Telecommunication GSM HSCSD GPRS (UMTS) wireless LAN

Ifgi Institute for Geoinformatics Technologies III Mobile Communication max 9.6 kbps HSCSD: High Speed Circuit Switched Data GSM: Global System for Mobile Communication based on a circuit-switched technology new channel coding scheme (14.4 kbit/sec) allows up to four channels to be combined: 57.6 kbit/sec high network capacity demanded

Ifgi Institute for Geoinformatics Technologies III Mobile Communication no permanent link data is encapsulated in individual packets “always on” transfer capacities are shared between users of one cell theoretically 128 kbps UMTS: Universal Mobile Telecommunication Standard GPRS: General Packet Radio Service up to 2mbps (practically <800kbps) not before 2003

Ifgi Institute for Geoinformatics wireless LAN Mobile Communication uses radio frequency technology (2.4GHz) Infrastructure: Server http AP max 40km

Ifgi Institute for Geoinformatics wireless LAN Mobile Communication Line of Sight Access Point

Ifgi Institute for Geoinformatics Transfer Rates Mobile Communication GSM GPRS HSCSD WLAN [kbps]

Ifgi Institute for Geoinformatics Solution Situation Mobile Communication Distributed simulation and visualization capabilities High Level Architecture Distributed simulation and visualization capabilities High Level Architecture

Ifgi Institute for Geoinformatics High Level Architecture HLA defines a framework for distributed simulations

Ifgi Institute for Geoinformatics High Level Architecture HLA defines a framework for distributed simulations Developed by the DMSO, under the US Department of Defense

Ifgi Institute for Geoinformatics High Level Architecture HLA defines a framework for distributed simulations Developed by the DMSO, under the US Department of Defense IEEE-Standard (1516.1/2) for interoperable simulation components

Ifgi Institute for Geoinformatics High Level Architecture HLA defines a framework for distributed simulations Developed by the DMSO, under the US Department of Defense IEEE-Standard (1516.1/2) for interoperable simulation components Key feature: Separation of the communication and the state space

Ifgi Institute for Geoinformatics Simulator Architecture HLA Distributed simulations consist of any desired number of communicating and synchronized simulators or other com- ponents (=Federates) F1F2F3Fn... Interrelated Federates forming a distributed simulation (=Federation) All communication is done via the Runtime Infrastructure (=RTI) Runtime Infrastructure SimulatorSensorDisplaySimulatorSensorLive PlayerDisplaySimulatorSensor

Ifgi Institute for Geoinformatics Interoperability HLA Interoperability is supported by: 1.Implementing well known interfaces to communicate with the RTI. Due to the restricted communication possibilities, the interoperability within a federation is guaranteed on a syntactical level. Federate RTIAmbassadorFedAmbassador RTI 2.Every object type to be published or accepted by a federate is documented in a well defined way (based on the Object Model Template). This helps to realize a more semantic interoperability.

Ifgi Institute for Geoinformatics Project MOMENO Mobile Measurement Network Optimization Prototype Data acquisition, sending and receiving HLA: Distributed data interpolation and visualization

Ifgi Institute for Geoinformatics Architecture MOMENO

Ifgi Institute for Geoinformatics WindowsCE Client MOMENO

Ifgi Institute for Geoinformatics To make the remote simulation plug & playable… Outlook We have to achieve a high level of interoperability in the sense of OGC: Geo Federates To create an OMT compliant Geo Object Model, describing basic OGC Features (Simple Features, Coverage) RootFederate GeoFederate OGCSpecs

Ifgi Institute for Geoinformatics Thank you for your attention