ralfie: reduce potential radiation exposure by...
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Sponsored by
RALFIE: Reduce Potential Radiation Exposure by OGC-based Sensor
Information Platforms Kyoung-‐Sook Kim, Hirotaka Ogawa, Isao Kojima
Informa=on Technology Research Ins=tute (ITRI)
Na=onal Ins=tute of Advanced Industrial Science and Technology (AIST), JAPAN
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OGC ®
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AIST
• Na#onal Ins#tute of Advanced Industrial Science and Technology, JAPAN
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Mainly funded by METI (Ministry of Economy, Trade and Industry) ≒2200 Researchers + Suppor#ng Staffs
Industrial Research Bridge between basic research and product development
Cross-‐Domain R&D(Ex. Informa#on technology with Geoscience)
6 Major Research Area
ITRI
2
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Fukushima Radiation Monitoring Database Project
Nuclear Regula#on Authority(NRA), JAPAN
Japan Atomic Energy Agency(JAEA)
JAEA AIST Hokkaido University Japan Map Center (Company)
2 Teams 2 Teams 1 Team 2 Teams
Project Management
Partners ・・・・・ Okayama-‐U, The Ins#tute of Sta#s#cal Mathema#cs,,
Project Structure as of 2013〜
Database Construc#on
Database Publishing
Radia#on Monitoring
Na#onal Project to con#nuously Monitor/Construct/Publish Radia#on Monitoring Database of Fukushima Area
• Understand what happened at the accident in the past
• Help the decision making for the future
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AIST’s Role in the Project Provide Ease-‐of Use “Modern” Sensor Data Service Framework
based on the Interna=onal Standards.
Sensor/Database that JAEA produced => “Legacy” style data like CSVs. 1. Convert/Wrap “Legacy” sensors and data(CSVs and raw data) and provide them as standard Web Services 2. Construct a data federa=on framework based on 1.
Framework • Easy to access/interoperate • Easy to re-‐use • Easy to combine with other geospa=al data Various Radia#on Sensors • Need to handle various sensors
OGC(Open Geospa#al Consor#um) Web Services
Real-‐Time Monitoring Posts/Sensors
• 4000 radia=on monitoring points in Fukushima-‐area
• Produce raw data in every 10 minutes for 3years
• Approx. 22million Records(as of 2013)
Periodical Monitoring Result Database (Car, Helicopter, Soils etc.) • 239 CSV Files (data collected by “県” or “全国”)
• Approx. 17million Records • 31 CSV table types (for possible one schema)
• Japanese characters for the a`ribute name
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OGC-based Sensor Information Platforms
Database/Sensor Federa#on
• Access Data : SOS and W*S (Sensor Observa#on Service) (Web Feature/Coverage Service) – Interface to radia=on measurements – Federate with other OWS servers
• Process Data: WPS (Web Processing Service) – Spa=al & Temporal Analy=cs – Produce various format
• KMZ,AVI etc.
• Publish Data: WMS (Web Map Service) WMS Time of maps – KMZ – Rich Client with Google Earth/Map
SOS Service
WPS Service
Client
Sensors
GIF89a, SVG, Flash, AVI, KMZ
Client
O&M
Calculate Various Spa=al & Temporal Opera=ons
Monitoring Databases
OWS Services (WMS,WFS,WCS)
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Use Case: Combination of our SOS with other WMS data source (Weather)
Jan 1, 2013 The dose rate was rela#vely high
Jan 16, 2013 The dose rate was rela#vely low when there was heavy snow
Human exposure to natural background radia#on, 0.27uSv/h
Snow effect Simple overlay can be useful
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RALFIE Framework: Overview
• Assist Fukushima residents to reduce poten#al health effects of radia#on exposure based on life padern mining
Administra#ve Decision-‐Making Personal Health Assistance
Radia#on Monitoring Data
No#fica#on
!!
Mobile Users Experts Government
Moving Features + Sensor Data (Radioac#vity)
OGC GeoSMS
Moving Object Databases
Data Interconnec=on
Open Data (Sta#s#cs, Meteorology,
Geology, etc.)
OGC Moving Feature Encoding OGC SensorThings API
Hotspot Detec#on
Exposure Es#ma#on
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Spa#otemporal Informa#on Plaform
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Health Effects caused by Radiation Exposure
• Radiation level – The average person: 2 to 3 millisievert per year – 400 millisieverts per hour at reactor No. 3 on March 15, 2011 – CT scan (more than 1 millisievert) – Radiation sickness: A whole-body dose of 3 sieverts (3,000 times the
recommended public dose limit per year) • Radiation type
– gamma and x-ray radiation: pass directly through the body without interacting with the tissue
– alpha and beta radiation: lower energy, more dangerous – In the Fukushima situation the radioactive isotopes detected, iodine 131 and
cesium 137, emit both gamma and beta radiation. • Exposure time
– High radiation level during a short time > Low level dosage accumulated over time
– Difficulty to estimate effects of long-term and low-dose radiation, such as cancer risk, mental health, etc.
! Refer to http://www.scientificamerican.com/article/how-radiation-threatens-health/
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RALFIE Framework
Ralfie MobileApp
Mobile user
Ralfie Archiver API D-‐Shudle Reader
LifeLog Ralfie Analyzer
User Profile Data
Official Monitoring
Data Volunteered Radia#on Data (#me series)
Raw Trajectory
Data
LifePadern Radia#onData (R+V+U+O+M)
Bluetooth LE
Loca#on log
Seman#c log
Measurement log
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Map Data
(POI, Roads)
Courtesy Wataru Naito (AIST)
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Lifelog Data
Sony SmartBand
Samsung Galaxy
• Personal lifelogging – Timelines of chronological sequences of ac=vity objects – Food and exercise records, event pictures, loca=ons, etc.
• cf) EMR(Electronic Medical Record), EHR(Electronic health record), and PHR(Personal Health Record)
– Wearable sensors, smartphones
• Open Interfaces and Data Formats – Plaiorms and the data they expose can be controlled and delivered to the correct users at the correct =me for the correct usage through APIs
– Ex) Sony Lifelog API: REST-‐based web-‐service API • User profile: name, height, weight, etc. • Ac=vi=es: steps, sleep, transporta=on, music listening, etc. • Loca=ons: a history of where the user has been
(https://developer.sony.com/develop/services/lifelog-api/lifelog-api-overview/) Jawbone
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Summary Data
• Mobile users – Don’t want to share whole their lifelogs – Want someone(expert) to interpret their logs – Want to compare with others or average cases
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0.75 mSV 2.75 mSv
expert user
Privacy issues, extract relevant informa#on using sta#s#cal data
Summary data
Report
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Possible Candidates of Existing Standards to Interoperate
• Health Domain – Health Level 7 (HL7) for exchanging health care data (https://www.hl7.org)
• A data set to provide a snapshot in time containing a summary of the pertinent clinical, demographic, and administrative data
– Statistical Data and Metadata Exchange –Health Domain (SDMX-HD) • SDMX: Statistical Data and Metadata Exchange (ISO/TS 17369:2005) • WHO implementation of SDMX (summary data) to share and exchange
medical indicators and metadata between medical organizations
• Publishing Statistical Data as Linked Data – The RDF Data Cube Vocabulary (W3C Recommendation) (http://www.w3.org/TR/vocab-data-cube)
• Aggregate data, Numeric, Time series, Multi-dimensional tables, cubes
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Conclusions
• Fukushima Radiation Monitoring Database Project – To provide ease-of use “modern” sensor data service framework
based on OGC Standards – OWS (WMS, WFS, WPS), SOS.
• RALFIE Framework – To assist Fukushima residents to reduce potential health effects of
radiation exposure based on life pattern mining – New fashion of OGC
• Moving Feature, SensorThings API – Current open issues of data formats and interfaces
• Lifelog data • Summary data
– Vocabulary, dimension, …
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