GROUND MONITORING USING SATELLITE COMMUNICATIONS

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1 GROUND MONITORING USING SATELLITE COMMUNICATIONS Otto Koudelka, Peter Schrotter Institute of Applied Systems Technology Joanneum Research Institute of Communication Networks and Satellite Communications, TU Graz 1 July 2003

2 CONTENTS Communications Requirements Systems One-way: GEONETCast Interactive (VSAT-type) Satellite phone technology for data collection, monitoring Summary

3 REQUIREMENTS Environmental data need to be collected Delivery to processing centre & decision makers Distribution of processed data to users & decision makers

4 REQUIREMENTS (2) Space-based tools available, many of them free-ofcharge Access via Internet In many areas suitable Internet access may not be available Data collection in areas without telecom infrastructure Wireless systems advantageous

5 intercontiental metropolitan nationwide local area G S M 3G SATELLITE/ DVB 3.5 G HSPA Flash OFDM W R A N WiMAX G LTE DISTANCE VERSUS BIT RATE 4G indoor short range DECT Zigbee RFID b Bluetooth a n UWB Data rate [Mbit/s]

SATELLITE COMMUNICATIONS Wide coverage (country, continent, intercontinental) Broadcast capability High data rates Flexibility in network set-up

6 SATELLITE COMMUNICATIONS Wide coverage (country, continent, intercontinental) Broadcast capability High data rates Flexibility in network set-up Mobility Rapid deployment Reliability Economic solutions available Systems for Internet access and (one-way) data dissemination existing Source: ESA

7 DATA COLLECTION Sensor network Data Collection Centre Data acqusition Sensors

8 DATA CASTING Internet/Intranet

9 2-WAY SYSTEM Internet

10 AVAILABLE SYSTEMS

11 INMARSAT INMARSAT systems since generations of satellites 11 satellites operational (1 spare) Main application: maritime, aeronautical, landmobile communications

12 INMARSAT COVERAGE Source: INMARSAT

13 INMARSAT-4 Spacecraft Power: 12 kw (DC) Solar arrays: 48 m Mass: 6000 kg EIRP: 67 dbw 1 global beam 228 narrow spot beams 19 wide spot beams 630 channels (200 khz each) L-Band ( GHz) Source: INMARSAT

14 INMARSAT BGAN Laptop-sized terminal kg 30x24x4 cm Up to 400 kbit/s data rate (two-way) Wide coverage

15 BGAN TERMINAL Broadband Global Area Network 1) Integral antenna 2) Compass 3) SIM card 4)Battery 5) External power 6) USB 7) Indicators 8) Ethernet Source: INMARSAT

16 INMARSAT BGAN COVERAGE Source: INMARSAT

17 BGAN SERVICES IP Network PC / Laptop IP Router LAN BGAN terminal Voice & ISDN Earth Station Switch Voice & ISDN Circuit Switched Network

18 ONE-WAY FILE TRANSFER Server

19 Digital Video Broadcast Standard DVB-S, -S2 Adopted nearly in all parts of the world (except US and Japan) Any kind of digital data can be transferred Multiplex of MPEG-II video/audio and IP packets Low-cost hardware for about $ 50 available (PC card) Plugs into existing PC or laptop Dish + receiver front-end for another $ 50

20 SUPPORTED APPLICATIONS S-2 standard provides more capacity and better error protection Delivery of high quantities of data (multicast) Image transfer Data transfer

21 GEONETCast EUMETSAT service: EUMETCast Contribution to GEONETCast Transfer of processed environmental (meteorological) data to users Using low-cost DVB technology

25 INTERACTIVE TERMINAL ESA developments for interactive Terminals Target price: $ cm dish (TV type) Ku-band W transmitter Data rates 128 kbit/s 1 Mbit/s Suitable for data collection Transfer of content-rich data (remote sensing)

27 SATELLITE PHONE TECHNOLOGY GEO orbit: THURAYA LEO orbit: GLOBALSTAR, IRIDIUM Voice and data services LEO store & forward: ORBCOMM

28 THURAYA SATPHONE GSM-compatible Can be used as terrestrial phone in reach of GSM network In remote areas communications via satellite 9.6 kbit/s data services

29 THURAYA TERMINALS Voice, data THURAYA DSL: 144 kbit/s Source: THURAYA

30 THURAYA COVERAGE Source: THURAYA

31 DATA COLLECTION Satphone Remote Data Collection Site Processing Centre Laptop or PDA

32 GLOBALSTAR LEO constellation: 40 satellites Coverage depending on terrestrial gateways Satellite phone with data capability (9.6 kbit/s) Source: GLOBALSTAR

33 DATA MODEMS Duplex Simplex

34 GLOBALSTAR COVERAGE Source: GLOBALSTAR

35 IRIDIUM LEO constellation: 66 satellites World-wide coverage Voice & data Data rates: 2.4 kbit/s (higher with compression)

36 IRIDIUM CONSTELLATION

37 IRIDIUM TERMINALS Handset Source: IRIDIUM Data modem

Not real-time VHF band (137/148 MHz) Serial data

38 ORBCOMM Store-and-forward messaging system LEO constellation (29 satellites) World-wide coverage Not real-time VHF band (137/148 MHz) Serial data interface Suitable for data collection Source: ORBCOMM

39 SUMMARY Satellite communications provides means for Data collection from sensors and sensor networks Data dissemination Symmetrical and asymmetrical solutions Provision of services in remote areas Rapid deployment Reliable systems Affordable solutions available using DVB and stellite phone technology

Inmarsat BGAN. Presentation to EBU Networks 2007 To IP and Beyond. 19 th June Alan Howell Director, Network and Systems Engineering

Inmarsat BGAN. Presentation to EBU Networks 2007 To IP and Beyond. 19 th June Alan Howell Director, Network and Systems Engineering Inmarsat BGAN Presentation to EBU Networks 2007 To IP and Beyond 19 th June 2007 Alan Howell Director, Network and Systems Engineering Outline of Presentation About Inmarsat Broadband Global Area Network