Sensor for Tunnels Wireless Network
Kenichi Soga
Professor of Civil Engineering
Department of Engineering
•
London Underground –
Monitor area of lining deterioration g
–Tiltmeters + crackmeters
–Optical fibre strain monitoring
学习国际象棋Aug 2002, 19 Metro Stations flooded $200millons, areas usable for 6 months •Prague Metro
–Asss long term impact of flood
T ti it i l ti
–Two active monitoring locations •Barcelona Metro
–wet areas
万圣节几月几号
–oxidation of reinforcement
–cracks and fissures.
LUL Barcelona Metro Prague Metro
Why WSN?
Why WSN?•Humber Bridge
–Long-term monitoring of unique object
联通取消呼叫转移g g q j •London Underground, Highways Agency L d U d d Hi h A
–Large network
续费–Short-term monitoring
Requires fast action to check
–Requires fast action to check
Risk Management
尺度大的电视剧Risk Management
Probability of Failure
×
Number of death by the failure
×
Cost per person
×
收红包
Political damage
３（Political damage）
＝
城隍庙街
Cost of Maintenance and Repair电子商务概念
5
