公开(公告)号：EP2542877B1

公开(公告)日：2015-07-08

申请号：EP11717728.7

申请日：2011-03-04

申请人： Finmeccanica - Società per azioni

发明人： VIOLA, Roberto ,  MENGALI, Sandro ,  LIBERATORE, Nicola ,  PIERNO, Luigi

IPC分类号： G01N21/05 ,  G01N21/35 ,  G08B21/14

CPC分类号： G01J3/28 ,  G01N21/0303 ,  G01N21/05 ,  G01N21/3504 ,  G08B21/14

公开(公告)号：EP2542877A1

公开(公告)日：2013-01-09

申请号：EP11717728.7

申请日：2011-03-04

申请人： Finmeccanica - Società per azioni

发明人： VIOLA, Roberto ,  MENGALI, Sandro ,  LIBERATORE, Nicola ,  PIERNO, Luigi

IPC分类号： G01N21/05 ,  G01N21/35 ,  G08B21/14

CPC分类号： G01J3/28 ,  G01N21/0303 ,  G01N21/05 ,  G01N21/3504 ,  G08B21/14

摘要： A system for surveillance of a delimited area within which people move, wherein at least one hollow optical fibre (10) is configured for extending through the area (2) and is provided throughout its length with a plurality of holes (12) that set an internal channel (11) of the fibre in communication with the outside of the fibre itself. There is provided an optical source (20) configured for supplying the optical signal to one end of the hollow optical fibre (10) and a sensor (24) designed to detect at one end of the hollow optical fibre the optical signal transmitted throughout the length of the fibre itself. A processing unit (30) is configured for examining the spectrum of the optical signal detected by the sensors (24) in order to detect the presence of toxic agents present in the area and drawn into said channel (11).