公开(公告)号：EP2630457B1

公开(公告)日：2020-03-04

申请号：EP11833908.4

申请日：2011-01-12

申请人： Smartrac Investment B.V.

发明人： NIKKANEN, Mikko ,  MANNINEN, Antti ,  KOSKELAINEN, Tuomas ,  VIRTANEN, Juhani ,  AALTO, Harri ,  VATTULAINEN, Juha ,  STROMBERG, Samuli

IPC分类号： G01K7/32 ,  G06K7/00 ,  G01K1/02 ,  G06K19/07 ,  G06K19/077 ,  G06K7/10 ,  G06F12/14 ,  G06F21/35 ,  G06F21/83 ,  G06F21/84 ,  H04W4/80

公开(公告)号：EP2663845B1

公开(公告)日：2018-12-05

申请号：EP11855610.9

申请日：2011-05-02

申请人： Smartrac Investment B.V.

发明人： VIRTANEN, Juhani ,  MANNINEN, Antti ,  KOSKELAINEN, Tuomas ,  NIKKANEN, Mikko ,  AALTO, Harri ,  VATTULAINEN, Juha

IPC分类号： G01K3/06

CPC分类号： G01K3/06 ,  E04B1/70

摘要： A method for monitoring condition of a building structure (350, 380, 390) comprises: - determining first temperature information (T1, TINF1) from first temperature data (TDATA1 ) obtained from a first temperature sensor (100a), - determining reference temperature information (T1,REF,TREF1 ) by using second temperature data (TDATA2) obtained from a second temperature sensor (100b), and - comparing the first temperature information (T1,TINF1) with the reference temperature information (T1,REF,TREF1) in order to detect an abnormal condition of the structure (350, 380, 390), wherein the first sensor (100a, 100b) is positioned within the structure (350, 380, 390) such that a first distance (z1) between the first temperature sensor (100a) and an inner surface (INSRF) of the structure (350, 380, 390) is different from a second distance (z2) between the second temperature sensor (100b) and the inner surface (INSRF), wherein the first temperature sensor (100a) is an RFID transponder arranged to transmit the first temperature data (TDATA1), and wherein the first temperature sensor (100a) is arranged to extract operating energy from a radio frequency field (ROG).