Automation and remote control as new challenges on the way to … · 2011-05-18 · Technische...

A GGOS site …

Co-located, interoperable systems

Future requirements

See „The History and Future of Satellite Laser Ranging“(2):� [...] High Level of Automation [...] Fully automated [...] Semi-automated: Single Operator or

Remote Operation[...]� [...] Kilohertz Systems [...]See „The SLR 2000 Pseudo Operator“(3):� „[...] SLR 2000 Pseudo Operator (POP) controls or directs all aspects of the automated SLR 2000

system. [...] POP will monitor the health and safety of the system foremost and control the acquisition and tracking [...] of the satellites.“

See IVS Memorandum 2006-008v01: VLBI2010 (1):� „[...] Increase observation density [...]“� „[...] For the highest accuracy the global networks must be tied together. [...]“� „[...] Automate operations and procedures at all stages[...] Flexibility to add/subtract stations on

short notice [...] Automated diagnostic procedures and notification of personel when necessary [...]“� „[...] Monitoring [...] will make it possible to account for factors [...]“� „[...] new observing strategies [...]“

See NTRIP: „Nutzung der Internet-Radio-Technologie zur Übertragung von GNSS-Daten“(4):� „[...] Echtzeitübertragung von GNSS-Daten [...]“� „[...] Möglichkeit der Fernwartung [...]“

(1) Niell, Arthur; et. al.: IVS Memorandum 2006-008v01. „VLBI2010: Current and Future Requirements for Geodetic VLBI Systems“. Sept. 2004(2) http://ilrs.gsfc.nasa.gov/docs/degnan_0603.pdf (3) http://cddis.nasa.gov/slr2000/docs/pseudo_operator.pdf(4) http://igs.bkg.bund.de/root_ftp/NTRIP/documentation/sapos03_gebhard.pdf

Flexible, remote accessible, reliable, independent, automated and safe systems (throughout all technical levels)

Laser Ranging Workflow

The workflows on a technical point of view

Predictions(ILRS)

Ranging(passages few

minutes)

Storage (Linux file system)

SLR-Control

Status email(EUROLAS)

FTP-Transfer (of NP, Fullrate)

ILRSDatacenterAnalysis-Center

Predictions(ILRS)

minutes)

SLR-Control

Few days

QualityFeedback

Predictions(ILRS)

minutes)

SLR-Control

RT-monitoringtransfer

Real-time (Quality) Feedback

Few days

QualityFeedback

Predictions(ILRS)

minutes)

SLR-Control

System Monitoring

Few days

QualityFeedback

Predictions(ILRS)

minutes)

SLR-Control

System Monitoring

Few days

QualityFeedback

CoordinationILRS

DatacenterAnalysis-Center

Before tracking

Standardizing interfacesand system software

Control includes ...

Interfaces

Protocols

Workflows

Data & Formats

SW/HW Techniques

Strategies

Access points, available functionalities

Standardization &

synergies over services and

system borders

Communication and operation schedule

Communication rules and styles

Communication data and storage descriptions

Communication software andhardware in a development process(New) strategies to operatesites using communication

Safety & Security

Authenticity and reliability

New control strategies

- Standard operations- Local operator

Local Remote

- Check systemstates from everywhere at the observatory

- Tele-working- Remote assistance

and diagnostics- Control very

remote, inaccessible telescopes

SharedLocal Remote

- Save, passive data live monitoring

- Dedicated control access by responsible person

- Shared access from different observatories

- Shared night shifts

InternetInte

SharedLocal Remote Unattended

Internet

- Observations run autonomous, (semi-) automated and unattended

Control*

* per system with individual restrictions andonly with reliable, well educated personnel staff on site

InternetInte

Control*

* per system with individual restrictions andonly with reliable, well educated personnel staff on site

SysMon

InternetInte

An example from astronomy:The Liverpool telescope

Prof. Iain Steele, Telescope Director

http://telescope.livjm.ac.uk/

The Liverpool Telescope

� 2.0 metre f/10

� La Palma, Canary Islands

� Operating since 2004

� Fully Robotic (no on site staff).

� Multiple instruments (change time 20 seconds)

− CCD imagers

− Polarimeter

− Spectrograph

� Common user (~50 users from ~20 institutions)

� Total Operating Budget 600,000 Euro/year

� http://telescope.livjm.ac.uk/

Web Based User Interaction

Some statistics and references …

• The Liverpool Telescope: performance and first results, Steele I.A. et al.., Proc

SPIE, 5489, pp. 679-692 (2004).

• Design of low cost and reliable instrumentation for robotic telescopes,

Mottram, C.J. et al.. Proc SPIE, 5492, pp. 677-688 (2004).

• Robotic telescope scheduling: the Liverpool Telescope experience, Fraser S. &

Steele, I. A., Proc SPIE 5493, pp. 331-340 (2004).

• Switching the Liverpool Telescope from a full-service operating model to self-

service, Smith R.J. et al., Proc SPIE 7713 (2010).

Thank you!

Automation and remote control as new challenges on the way to … · 2011-05-18 · Technische...

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