PERFORMANCE STUDY of THEOS DATA TRANSFER via Mobile IP Mr. Prawit CHERTCHOM Network Engineer
Outline Outline � GI STDA with THEOS � THEOS I mage for Disaster � THEOS I mage for Disaster � Experimentation
I mage Ground System I mage Ground System THEOS THEOS THEOS X-Band Station S-Band Station THEOS THEOS Control Ground C t l G d Image Ground Segment Segment User Request
Sharpening Sharpening PAN THEOS I MAGE THEOS I MAGE MS PAN
THEOS I MAGE TYPE THEOS I MAGE TYPE � P � Pan 2 m. 22 km. 2 22 k � MS 15 m. 90 Km. � Level 1A � Level 2A � Pansharpening 2m � Pansharpening 2m.
Hardware architecture of THEOS image ground segment Hardware architecture of THEOS image ground segment
Acquisition Acquisition
Ladkraba ang Station n GSC 13m. THEOS ข้อมูลโดย : ประมิน พิชิตการค้า
Sriracha St tatio on ข้อมูลโดย : สาวิตรี กลั่นเอี่ยม
Sequence of activities from acquisition to archiving Sequence of activities from acquisition to archiving Monitoring
Moving Window Display
Role of GISTDA in Disaster monitoring in Thailand � Flood: Inundated area maps were provided to � Flood: Inundated area maps were provided to relating agencies and to public via GISTDA web page page � Forest fire: Hot spot and burnt area were posted on GISTDA MODIS web page and WMS on GISTDA MODIS web page and WMS � Environmental and climate related event monitoring monitoring � Drought monitoring using THEOS and Landsat-5 � Coastal change using archived and recent Landsat, SPOT and THEOS images
Forest Fire (Fire Hotspots) Forest Fire (Fire Hotspots)
Drought monitoring Drought monitoring
Coastal Changes Coastal Changes
Flood Monitoring Flood Monitoring THEOS Image, Acquired on Nov 1, 2010 Nov 1, 2010 Inundated area: Sing Buri
Flood Monitoring Flood Monitoring THEOS Image, Acquired on Oct 23, 2010 Inundated area: Nakhon Ratchasima
Flood Monitoring Flood Monitoring THEOS Image, Acquired on Oct 27, 2010 Inundated area: Ayutthaya
Open access of EO data: GISTDA web page Open access of EO data: GISTDA web page � Public awareness: � Disasters situation: view from satellite � Web map server Web map server
Activities of Sentinel Asia GISTDA Node Activities of Sentinel Asia GISTDA Node � Possibility for GISTDA to become a SA provider y p node with the launch of THEOS
Mode of Data Transfer Mode of Data Transfer � Currently, data transfer from GISTDA server to SA y, server can be made via ftp � Data transfer testing for THEOS was successfully � Data transfer testing for THEOS was successfully done (June 2009): THEOS full scene image (both MS and Pan) MS and Pan) � Data preprocessing: convert map projection to geographic lat/long remove ch4 from MS image geographic lat/long, remove ch4 from MS image, remake jpeg, make meta-data � Data visualization on SA WMS Data visualization on SA WMS
THEOS image on SA server THEOS image on SA server Panchromatic 2 meter resolution; 22x22 sq.km. Multispectral 15 meter resolution; 90x90 sq.km.
ASEAN+3 ASEAN+3 � ASEAN+ 3 Satellite Image Archive for Environmental Study project Environmental Study project � To share the satellite image archives among the ASEAN+ 3 member countries ASEAN 3 b t i � A distributed system of servers containing metadata of available ASIAES information for environments study and natural hazards � Make use of readily available Internet Mapping technology � International standard will be applied to facilitate query and consistent presentation across multiple participating sites
ASEAN ASEAN � System Capabilities y p � Automated Metadata/Information Updating service � Searching service � Searching service • Region of Interest via Web Map Service • Catalogue/Keywords Search • Catalogue/Keywords Search • Data Viewing • Data Upload/download service • Data Upload/download service • Linkages for ordering service
ASEAN ASEAN � System Capabilities y p � Automated Metadata/Information Updating service � Searching service � Searching service • Region of Interest via Web Map Service • Catalogue/Keywords Search • Catalogue/Keywords Search • Data Viewing • Data Upload/download service • Data Upload/download service • Linkages for ordering service
ASEAN ASEAN � Data content � Metadata of the Image which can be used for natural hazard management or representing natural hazard management or representing environmental events � Documents, applications and tools Documents, applications and tools � Satellite image archives � Types of Hazard � Types of Hazard � Earthquake; active volcano; fire; flood; landslide; deforestation; oil spill; air; soil and water pollution deforestation; oil spill; air; soil and water pollution, etc.
Thailand Monitoring System � Portal for providing of satellite-based geo-spatial p g g p information for operational use � Natural resources, environment, disasters and Natural resources, environment, disasters and national security � WEB-BASED System � WEB BASED System � Data acquisition, data processing, data dissemination dissemination � System comprises: Geo-spatial database, image and Thematic processing unit thematic application and Thematic processing unit, thematic application models, data presentation/distribution unit
Monitoring System for Disaster Monitoring System for Disaster
National Satellite Image Archive National Satellite Image Archive � RTL: StorageTek L700 � SDLT Slots: 690 � Capacity: ~ 600 Terabyte Data Management: Data Management: � Satellite Data: FRED and I Image Products available P d t il bl on-line services
THEOS Image Ground Segment (IGS) THEOS Image Ground Segment (IGS) THEOS Database Processing g Sever Sever
Mobile IP using for IP using for THEOS M bil
Connection between GISTDA and other Node Connection between GISTDA and other Node
Simulation Scenario Simulation Scenario � The throughput of sending packet without g p g p buffering � The throughput of sending packet with buffering � The throughput of sending packet with buffering � The throughput of receiving packet without buffering buffering � The throughput of receiving packet with buffering � The throughput as the difference the time when g p mobile host is able to receive the first packet
Mobile IP without Buffering Mobile IP without Buffering The packet losses between time 100 and 120 seconds and 120 seconds
Mobile IP with Buffering Mobile IP with Buffering The period between 80 seconds and d d 120 seconds the packets stack up in p buffer
Throughput for Mobile IP without Buffering Throughput for Mobile IP without Buffering
Throughput for Mobile IP with Buffering Throughput for Mobile IP with Buffering
Number of Packet loss Number of Packet loss 250 200 oss Without Buffering acket Lo AVG AVG= 177.8 177 8 150 ber of Pa 100 Buffering 50 50 Numb AVG= 2.8 0 1 2 3 4 5 6 7 8 9 10 -50 Number of Experimention
Conclusions and Future works Conclusions and Future works � Buffering technique will give results in lower packet g q g p loss compared to the without buffering technique � This advantage may cost of additional application � This advantage may cost of additional application memory to act as a buffer � In the future work will performance test with � In the future work will performance test with actual THEOS data
ุ ขอบคุณครับ Thank you
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