1. Control System (CS) and Data Acquisition (DAQ) architecture for the radiation background monitoring of a Personnel Safety System in the ATLAS cavern.
Adamidi Eleni, Marie Curie Fellow
PhD student, NTUA-School of Electrical and Computer Engineering
Supervisors: Prof. Evangelos Gazis, Prof. Konstantina Nikita
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2. The EDUSAFE project
EDUSAFE is a 4-year Marie Curie ITN project, funded by FP7, which focuses on research into the use of Virtual Reality (VR) and Augmented Reality (AR) during planned and emergency maintenance in extreme environments (nuclear installations, space, deep sea etc.) such as the ATLAS cavern at CERN.
Goal: technically advance and combine several technologies and integrate them to form a Mobile Personnel Safety System (PSS) improving safety and radioprotection, reducing errors and decreasing the time needed for scheduled or sudden interventions.
Results: Augmented Reality glasses + smart helmet allowing bidirectional
communication with the EDUSAFE Supervision System used for guidance
and radioprotection purposes.
2nd example Mobile Personnel Safety System / AR glasses
Electronics, mechanics, physics, radiation calcs, fast wireless transmission, computer vision..
1st example Radiation Hot Spot Localization /iPad View
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3. 10 Early Stage Researchers (ESR) 2 Experienced Researchers (ER) Coordinator: CERN/ ATLAS 9 Full Partners (3 industries): AUEB, Athens University of Economics and Business, Greece Canberra, France CERN / ATLAS, Switzerland EPFL, Ecole Polytechnique Federale de Lausanne, Switzerland Novocaptis, Greece NTUA, National Technical University Athens, Greece (ESR5) Prisma, Greece TUM, Technical University of Munich, Germany Universita Degli Studi Di Roma Tor Vergata, Italy 4 Associated Partners: AUTH, Aristotle University of Thessaloniki, Greece CAEN University, France DUTH, Democritus University of Thrace, Greece IASA, Institute of Accelerating Systems and Applications, Greece
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4. NTUA ESR 5 - Control System (CS) and Data Acquisition System (DAQ) architecture
The CS and DAQ System is based on the ATLAS Personnel Visualizer System (APVS) part of the ATLAS Wireless Safety System (AWSS) that has been developed during the CERN’s WPSS project.
DAQ Server (sensor data in JSON formatted messages).
GWT application responsible for the GUI (EDUSS) for real-time supervision monitoring (iPad, desktops).
The Software Architecture design of the Control System and Data Acquisition System of EDUSAFE is graphically shown in Figure 1. This system is consisted of the following SW functional blocks:
Java Server. This SW is developed in Java programming language and is responsible for developing the web application that is needed in order to communicate with the client-side.
EDUSAFE User Interface running on the browser client is developed through web-based methods to enable the supervision of the personel in the ATLAS environment.
DAQ Server. This SW is also developed in Java and enables the acquisition of the various sensor data.
Oracle Database SW is used to store data for various purposes such as offline analysis.
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5. DAQ HW sources
The DAQ System can wirelessly acquire various types of data from all the subsystems:
1) The Mobile Personal Supervision System (MPSS), video/audio/radiation data.
2) The sensor board, environmental and biological parameters (JSON messages).
For example: Temperature, Barometric Pressure, Humidity, O2, Fall Detection.
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6. DAQ HW sources
3) The gamma camera, radiation hot spot localization images.
4)The dosimeter used for the radiation measurements.
In case a measurement exceeds a certain threshold the CS creates alarm notifications.
Once the data are acquired they are shown on the developed EDUSS GUI and stored in an Oracle Database for off-line analysis.
Edupix gamma camera using Timepix chip, a single-pixel read-out chip.
The system allows operators to visualize the locations of the main surrounding radioactive sources that contribute to their current dose rate directly on the EDUSAFE prototype display, so that they may perform their work accordingly, respecting ALARA (As Low As Reasonably Achievable) principles for minimizing occupational exposure.
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7. DAQ/CS System DAQ Server EDUSS GUI Oracle DB 03.06.2016 HNPS 2016
1.Mobile Personal Supervision System (MPSS)
2. Sensor Board
3. Gamma radiation camera
4. Operational Dosimeter for radiation data
DAQ/CS System
DAQ Server
EDUSS GUI
Oracle DB
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8. EDUSAFE Supervision System User Interface
The EDUSS GUI is developed in order to monitor the various worker sessions and guide the personnel if needed in the ATLAS cavern.
Through the EDUSS GUI the supervisor can:
Create multiple sessions with the workers in the ATLAS cavern.
Monitor each worker (real-time video streaming
and audio).
Monitor the sensor values and the gamma
radiation measurements corresponding to the
dosimeter of each specific worker.
Generate and save plots of the complete session
for each sensor type resulting in faster offline
analysis of the acquired data (Highcharts SW).
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9. Potentially interested industries:
ESA, NASA, Automotive and aerospace
industries, Nuclear Power plants
military application, Aircraft maintenance,
Medical applications,etc…

10. Thank you for your attention.
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11. Additional Slides
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12. Augmented reality glasses rendering on a real test demonstration.
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13. A prototype case for EDUSAFE system:
The ATLAS Tile Calorimeter Drawers extraction
A recurrent task required for the Tile calorimeter electronics maintenance

14. References 1) http://edusafe.web.cern.ch/edusafe/site.php2)
Acknowledgments
The author wishes to thank all other members of the EDUSAFE consortium. The research of EDUSAFE has been supported by a Marie Curie Initial Training Network Fellowship of the European Community’s FP7 Program under contract number PITN-GA
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