EP 0811959 B1 20011128 - Radio controlled alarm system with substations and safe data transmission
Title (en)
Radio controlled alarm system with substations and safe data transmission
Title (de)
Funkgesteuerte Gefahrenmeldeanlage mit Unterzentralen und sicherer Datenkommunikation zwischen den einzelnen Komponenten
Title (fr)
Système d'alarme commandé par radio avec sous-stations et transmission sûr de données
Publication
Application
Priority
DE 19622880 A 19960607
Abstract (en)
[origin: EP0811959A1] The system has a number of remote signal generators (1-7) that communicate bidirectionally with a central station (12) via a number of substations (8-11). Each of the substations is also in bidirectional contact with each other. A number of substations (9-11) may be in direct contact with the central station. The mode of communication is determined by a Received-Signal-Strength-Indicator (RSSI) table which defines channel quality and synchronises substations with central station. The communication channels are constantly monitored, and transmission quality is measured and stored on a microcomputer system of the central station.
IPC 1-7
IPC 8 full level
G08B 25/00 (2006.01); G08B 25/10 (2006.01)
CPC (source: EP)
G08B 25/009 (2013.01); G08B 25/10 (2013.01)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI NL PT SE
DOCDB simple family (publication)
EP 0811959 A1 19971210; EP 0811959 B1 20011128; AT E209807 T1 20011215; DE 19622880 A1 19971211; DE 59705496 D1 20020110; ES 2169290 T3 20020701
DOCDB simple family (application)
EP 97109071 A 19970605; AT 97109071 T 19970605; DE 19622880 A 19960607; DE 59705496 T 19970605; ES 97109071 T 19970605