Monitoring in Prague metro Martin Vaníček - CTU. Monitoring in Prague Metro Cambridge 18 June 2010 Martin Vaníček Types of monitoring in Prague Conventional.

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Presentation transcript:

Monitoring in Prague metro Martin Vaníček - CTU

Monitoring in Prague Metro Cambridge 18 June 2010 Martin Vaníček Types of monitoring in Prague Conventional geotechnical monitoring – Jan Záleský Geophysical monitoring – Jaromír Macháček Innovative monitoring Computer vision – data collection – Svatoslav Chamra MEMS sensors – participation – Jan Záleský WSN data collection and transfer – coordination – Martin Vaníček

Monitoring in Prague Metro Cambridge 18 June 2010 Martin Vaníček Conventional geotechnical monitoring Convergence measurements – tape Platform train is needed Manual measurements – 2-3 crew required Rotation – tilt plates Platform train is needed Manual measurements – 1 person Crack opening – crackmeters Automatic measurements to dataloggers Data transfer by laptop during visits Inclinometers – to be installed

Monitoring in Prague Metro Cambridge 18 June 2010 Martin Vaníček WSN installation in Prague - past Test site Near Dejvická metro station (~70m) The reason for this site was to test the WSN network in the environment of Prague metro, especially as on line A is installed a signalling system running on the Wi-Fi band as Zig-bee 8 wireless nodes + Stargate gateway installed 5 nodes + Stargate in one ring 3 nodes along tunnel ~ 17m distance Linksys GPRS router for internet access next to Stargate Encountered problems GPRS connection dropping, router & signal strength problem Stargate stopped working due to faulty power supply, the WSN removed

Monitoring in Prague Metro Cambridge 18 June 2010 Martin Vaníček WSN installation in Prague - present Situation at line C between Nádraží Holešovice and Vltavská stations: WSN is installed in similar set up as in London The gateway used is Balloon computer & MIB600 board Internet – using USB modem connected to Balloon The signal is strong enough as we are closer to the station The system is usually working fine but few issues with internet connectivity were encountered and with help from Cambridge solved Shortly is planed to place the Balloon back into the tunnel, so the new data can be collected

Monitoring in Prague Metro Cambridge 18 June 2010 Martin Vaníček WSN installation in Prague – present & future Proposal: WSN will be installed in 2 more locations in Prague metro – near station Můstek on line A and on Nuselský bridge on line C WSN will be based on Cambridge implementation as is already in Holešovice Balloon gateway will be connected with MIB600 board through PoE enabled hub via about 100m long Ethernet cable in order not to need power supply for MIB 600 Regarding sensors we want to install 4 inclinometers and 2 crackmeters on each site of course together with measurements of temperature, pressure and humidity. Current status The site at Můstek is almost ready for WSN installation, just waiting for Balloon and sensors

Thank you for your attention