e-Remote. Ctrl: Concepts for VLBI station control as part of NEXPRe. S Arpad Szomoru (JIVE) Alexander Neidhardt (FESG), Martin Ettl (FESG), Matthias Mühlbauer (BGK), Walter Alef (MPIf. R), Ed Himwich (NASA/GSFC), Christopher Beaudoin (MIT-Haystack), Christian Plötz (BKG), Arpad Szomoru (JIVE)
NEXPRe. S Novel EXplorations Pushing Robust e-VLBI Services
NEXPRe. S WP 5/Task 3: Continuous quality monitoring & Station Remote Control Novel EXplorations Pushing Robust e-VLBI Services - three-year project - aimed at further developing e-VLBI services of the European VLBI Network (EVN) - incorporating e-VLBI into every astronomical observation conducted by the EVN. -15 astronomical institutes and National Research and Education Network (NREN) providers - e‑Infrastructure project funded by the European Union's Seventh Framework Programme - Four main technical activities: - Cloud Correlation - Dynamically Provisioned Network Resources - Computing in a Shared Infrastructure - Provisioning High-Bandwidth, High-Capacity Networked Storage
- WP 5 at JIVE: - Dealing with increasing complexity of operations - Handling of data streams in realtime, recorded, mixed - At 1, 2, 4, 10 (? ) Gbps -More frequent/irregular e-VLBI observations involve - Much improved monitoring Both hardware, network (semi) automated scheduling Rapid feedback Robust warning systems NEXPRe. S first year review – Brussels – September 8, 2011
NEXPRe. S WP 5/Task 3: Continuous quality monitoring & Station Remote Control Novel EXplorations Pushing Robust e-VLBI Services - three-year project - aimed at further developing e-VLBI services of the European VLBI Network (EVN) - incorporating e-VLBI into every astronomical observation conducted by the EVN. -15 astronomical institutes and National Research and Education Network (NREN) providers - e‑Infrastructure project funded by the European Union's Seventh Framework Programme - Four main technical activities: - Cloud Correlation - Dynamically Provisioned Network Resources - Computing in a Shared Infrastructure - Provisioning High-Bandwidth, High-Capacity Networked Storage WP 5/Task 3: (TUM, MPIf. R, JIVE) - identify and re-act on observation failures in near real-time - improve diagnostics - allow direct (read) access to the field system control parameters - extend the capabilities of the NASA Field System by - remote control with authentication, authorization and a operator role management - station and system monitoring
NEXPRe. S WP 5/Task 3: Continuous quality monitoring & Station Remote Control 2010 2011 Authentication &authorization 2012 2013 Role management Preliminary work July 1 st System monitoring Test + experiments Integration into Fieldsystem Test + experiments now
Remote Control (“e-Remote. Ctrl” software)
„e-Remote. Ctrl“ software – the original test bed Tele-working C om m un ic at io n Remote Control on Site TIGO Concepción/Chile GARS O’Higgins/Antarctica RT Wettzell/ Germany TTW Wettzell/ Germany
e-Remote. Ctrl „e-Remote. Ctrl“ software – the communication stack for a remote operator Graphical User Interface (GUI) Client (currently wx. Widgets) FS Monitor Client GUI FS Monitor Client Communication TCP/IP-Network RPC FS Monitor Server Communication FS Monitor Server Functionality FS Monitor NASA Field System RPC Interfacedefinition Communication generated with the software generator idl 2 rpc. pl Server functionality Device … Wettzell Software Toolbox (well tested SW modules) RPC = (Sun) Remote Procedure Calls SSH = Secure Shell
e-Remote. Ctrl „e-Remote. Ctrl“ software – the communication stack for a remote operator FS Monitor Client GUI FS Monitor Client Communication TCP/IP-Network sshbroker Establish& RPC Control SSH tunnels FS Monitor Server Communication FS Monitor Server Functionality FS Monitor NASA Field System Graphical User Interface (GUI) Client (currently wx. Widgets) RPC Interfacedefinition Communication generated with the software generator idl 2 rpc. pl Server functionality Device … Wettzell Software Toolbox (well tested SW modules) RPC = (Sun) Remote Procedure Calls SSH = Secure Shell
„e-Remote. Ctrl“ software – some impressions Status monitor Mark 5 capacity Logging System temperature User input Chat Connection information Connection state
„e-Remote. Ctrl“ software – some impressions Permanent logfile filter Alarm sound (on/off) Operator Input Commandline history Filter logfiles by userdefined tokens Safe logfiles
„e-Remote. Ctrl“ software – authentication & authorization An authentication Confirm someone is authentic and permited to access Password + Username Individual, station specific access rights for every individual client users with fine grained access levels (e. g. only read rights for monitoring or dedicated change rights to interact) and authorization mechanism. Give him a role
Sys. Mon System Monitoring at Wettzell
Sys. Mon – System Monitoring at Wettzell - Collect data from several sensors at the telescope and site - Visualize the data with graphs and diagrams - Archive the collected data - (React according to predefined rules ) → Get a better knowledge about the system behavior during 1. Session 2. Post processing
Sys. Mon – System Monitoring at Wettzell Local safety for people and systems in combination with reliability in operations Meteo, WVR, Clock offsets, … => low sampling rates => as scheduled Power supply, wind uploads, emergency stops, rack temp. , … => medium sampling rates => permanently Servo currents, contouring errors, … => high sampling rates => on demand See also: Monitoring and Control Interface Collaboration Group Data for science and analysis Data for system operations Data for diagnosis
Sys. Mon – System Monitoring at Wettzell
Sys. Mon – System Monitoring at Wettzell Safety-system display Windsensor display
Current status – a “e-Remote. Ctrl” network
Current status – a “e-Remote. Ctrl” network IVS Cont 11 Test par a llel rem ote atte nda nce tes t
Current status – a “e-Remote. Ctrl” network TIGO Webcam Wettzell Control TIGO e-Remote. Ctrl TIGO Shifts Wettzell Mark 5 B+ Control
Thank you Software available under http: //www. econtrol-software. de 22
Скачать презентацию e-Remote Ctrl Concepts for VLBI station control as
6c50bb92aaca7c0a2c575e0cb15ff0cd.ppt