EP 0910843 B1 20020213 - IMPROVEMENTS IN AND RELATING TO REMOTE MONITORING AND SIGNALLING
Title (en)
IMPROVEMENTS IN AND RELATING TO REMOTE MONITORING AND SIGNALLING
Title (de)
FERNÜBERWACHUNGS- UND MELDESYSTEM
Title (fr)
AMELIORATIONS APPORTEES A UN SYSTEME DE SURVEILLANCE ET DE SIGNALISATION A DISTANCE ET LE CONCERNANT
Publication
Application
Priority
- CA 2259837 A 19990121
- GB 9701870 W 19970711
- GB 9614736 A 19960712
- GB 9625011 A 19961130
Abstract (en)
[origin: WO9802859A1] An apparatus and method for remotely monitoring the performance of an electrical appliance utilising the mains power supply cables of the electrical apparatus (4, 5, 6). A remote unit (3) is provided which communicates, using a signal at between 90 kHz and 145 kHz modulated on to the A.C. power supply cable of the electrical apparatus (4, 5, 6), with a local processing means (17) provided in the vicinity of the electrical apparatus (4, 5, 6). A memory means is provided to store information relating to the performance of the electrical apparatus (4, 5, 6). A robust communication protocol is provided to ensure that data is not lost. A control means is provided in the vicinity of the local processing means (17) so that the electrical apparatus (4, 5, 6) can be controlled via the remote unit (3). The system is primarily designed for monitoring items of street furniture (4, 5, 6).
IPC 1-7
IPC 8 full level
G08B 25/06 (2006.01); G08C 25/00 (2006.01)
CPC (source: EP)
G08B 25/06 (2013.01); G08C 25/00 (2013.01); H05B 47/185 (2020.01); H05B 47/22 (2020.01)
Citation (examination)
- WO 9216086 A1 19920917 - IND CYBERNETICS LTD [GB]
- EP 0669787 A1 19950830 - STRAND LIGHTING LTD [GB]
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9802859 A1 19980122; AT E213354 T1 20020215; CA 2259837 A1 20000721; CN 1227650 A 19990901; DE 69710466 D1 20020321; EP 0910843 A1 19990428; EP 0910843 B1 20020213; HK 1020221 A1 20000331
DOCDB simple family (application)
GB 9701870 W 19970711; AT 97930678 T 19970711; CA 2259837 A 19990121; CN 97197247 A 19970711; DE 69710466 T 19970711; EP 97930678 A 19970711; HK 99104837 A 19991027