sensor networks (field servers and mebroker) takuji kiura masayuki hirafuji aatsushi yamakawa seishi...
TRANSCRIPT
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Sensor Networks(Field Servers and MeBroker)
Takuji KiuraMasayuki Hirafuji
Aatsushi YamakawaSeishi Ninomiya
National Agricultural Research Center
気象 DB
気象 DB
気象 DB
アプリケーション
アプリケーション
アプリケーション
MetBroker
気象 DB
気象 DB
気象 DB
アプリケーション
アプリケーション
アプリケーション
MetBroker
気象 DB
気象 DB
気象 DB
アプリケーション
アプリケーション
アプリケーション
MetBroker
W DB
気象 DB
気象 DB
アプリケーション
アプリケーション
アプリケーション
MetBrokerMetBroker
Weather DB
Weather DB
Client APP
Client APP
Client APP
Weather DB
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Field Server
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UC Berkley, Smart Dusthttp://robotics.eecs.berkeley.edu/~pister/
SmartDust/
TIN-AMEDEShttp://www.tini.org/
Sensor Network Nodes
MICA 2 DOTwww.xbow.com
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Sensor Network Nodes
NEC Hitachi Mitsubishi
IntelNASA
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Field Server II (NARC)
• Case Acryl resin
• Core Field Server-Engine or PICNIC
• Sensors Temperature, Humidity, PPFD Soil moisture, Leaf-wetness UV, IR CO2 Camera, Microscope
• Data-collection and AI Fieldserver-Agent
• Networking Wi-Fi AP, Fieldserver-Gateway
• GRID MetBroker
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Multi-functional Airflow in Field Server
1. Cooling
2. Accurate Measurement Assmann's aspiration psychrometer ● Air-temperature
● Humidity
3. Sampling● Gas (CO2, NOx, SOx)
● Insects
● Microbes
● Virus
● Dusts
Filter orSampler
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Accuracy
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WDS & Wi-Fi Hotspot
Hotspot
Repeating by WDS (Wireless Distributed System)
Cable
Conventional Field Servers(Access-point, Continuously work)
Solar-energy Driven Field Servers(Client connection, Intermittent work)
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Full-Wireless Field ServersIntermittent Drive
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Farmer's market
Greenhouse house
FTTH,ADSL
i-Space
FiledServer
Farmer's restaurant
Mountain
Hotspot Wireless relay communication
Farm inn
Field or Forest
Camping site
Amenity farm Organic farm Fishing spot
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Trial Sites of Field Servers
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Field Server Model (by NECTEC)
• 8 channels
• Store to Compact Flash (up to 1GB)
• Time interval from 10 sec. to 24 hr.
• Easy , Cheap
• Battery backup
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Field server-Agentfor Data-Collection and Control
XML rule-base
Rule-base editor on WebOpen DB Web
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PC-Cluster
Field server-Agent( Web crawler & controller )
The Internet
Web Server
Cellar
Cable
ADSL VPN router
Global IP
Global IP
Private IP
FSG
FSG
FirewallFirewall Private network of Field servers
VPN:Field Server Gateway
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Options for Field Servers
Large Solar Panel Multi stack small solar Panel
Insect counterThermal Camera
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Field Servers and MetBroker
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Applications for MetBroker
Rice growth model
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MetBlastamRice Blast Prediction Model Using MetBroker
Infective condition
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Field Servers linked to MetBroker
気象 DB
気象 DB
気象 DB
気象 DB
FieldServerDB
アプリケーション
アプリケーション
アプリケーション
MetBroker
気象 DB
気象 DB
気象 DB
気象 DB
FieldServerDB
アプリケーション
アプリケーション
アプリケーション
MetBroker
気象 DB
気象 DB
気象 DB
気象 DB
FieldServerDB
アプリケーション
アプリケーション
アプリケーション
MetBroker
W DB
気象 DB
気象 DB
アプリケーション
アプリケーション
アプリケーション
MetBrokerMetBroker
Weather DB
Weather DB
Field Server DB
Client APP
Client APP
Client APP
Weather DB
Station Conf. XML
Weather Data XML
Field Server Data Archive
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Demo for Spacial Access of MetBroker
Field Servers
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Field Server Data
• Different Type of Sensors, Time Resolution– Described in XML files (w/o standard)
• Semantic Problems
– Sensors are added or removed– Time resolution may be changed.
• Small data size (1KB~10MB) for each.
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MetBroker
• Adding new databases– writing new DB wrappers– Restarting MetBroker
• Adding new observation Items– Data Modeling for each item– Writing new data object for each item
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System Overview (New MetBroker)
BrokerBroker
Decision-Making Support ServicesDecision-Making Support Services Operational ProductsOperational Products Simulation ModelsSimulation Models Detailed Digital ForecastDetailed Digital Forecast
Inference Engine
DB WrapperDB Wrapper
Item Definition OWL
Station metadata RDF
Metadata database
Meteorological databases
DB WrapperDB Wrapper
DB WrapperDB Wrapper
2. Request
3. Request
metadata
4. Request data
1. Register
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Roles of the RDF/OWL files
Description about all the weather stations included in a particular database
RDFStation metadata
Local vocabulary that is used in each database
http://www.agmodel.org/Aclima.owl
OWLItem definition
•All standard weather items
•Vocabulary to describe weather stations http://www.agmodel.org/MetBroker.owl
OWLBasic vocabulary
ContentFile type
Name
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New MetBroker
• Adding new databases– writing Item Definition & Station Metadata
• Adding new observation Items– Adding new basic vocabraly
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Field Servers linked to New MetBroker
• New MetBroker can integrate Field Server data with other weather database.
• New MetBroker can integrate other point data (data from other passive sensor networks).
• RDF/OWL technologies are useful for data integration in a specific and small problem domain i.e. meteorological data integration.
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Storage/ApplicationWeb Server
(Native XML-DB)
Field server-AgentsWeb crawler
Remote Controller
The Internet
Local network of Field servers
Agricultural Sensor GridData Grid + Sensor Net + Active Database
Agent Box
Agent Box
Agent ServerRule-base EditorMeta-rule Agent
GRID File System(Gfarm?)
Metadata ServiceOntologyregistry
Local Agent, Storage and MetBroker
MetBroker
ToDo•Rule-base xml to RDF, OWL converter•Separation Metadata service, Ontology registry, and MetBroker•OGSA compliant•Support XML-DB•Data cashing•Rule-based data pushing•Rule-based data file creation and execution of existing programs•etc.
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Earth Observation Data Fusion Project (Japan, 2005-2007)
1. Data Service– Huge Database, Active Database
2. Ontology Registry– Seamless access to an application related data
3. Data Collection
4. Application
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Field Servers at Tsukuba Style Festahttp://model.job.affrc.go.jp/FieldServer/TsukubaStyleFesta.html
Field Server
WDS connection
Wi-Fi HotSpot
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Field Servers at Tsukuba Style Festa
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Field Servers at Tsukuba Style Festaby Tsukuba University
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Field Servers at Tsukuba Style Festaby Panasonic