EP 1006759 A2 20000607 - System for monitoring a lighting installation or light signaling equipment having a plurality of light points of the led or similar type
Title (en)
System for monitoring a lighting installation or light signaling equipment having a plurality of light points of the led or similar type
Title (de)
Anordnung zur Überwachung einer Beleuchtungseinrichtung oder einer Signalisierungsanordnung mit mehreren Lichtquellen vom LED Typ
Title (fr)
Système de surveillance d'une installation d'éclairage ou d'un dispositif de signalisation utilisant des diodes electroluminescentes comme sources lumineuses
Publication
Application
Priority
IT FI980264 A 19981204
Abstract (en)
The system comprises groups (1, 3, 5) of LEDs, the LEDs of each of the groups being connected in series with each other; a direct current power supply (1B, 3B, 5B) is provided for each series; in a microprocessor (9) each of a plurality of inputs is connected to an intermediate point (1C, 3C, 5C) of one of the series of LEDs, so that an interruption of current in one of the series of LEDs or a short-circuit in one LED causes a change in the voltage at the corresponding input of the microprocessor, and a scanning means is used for monitoring the individual inputs by scanning; at the output of said microprocessor, a detector (12) signals this change, during scanning, by means of a relay (12C). <IMAGE>
IPC 1-7
IPC 8 full level
H05B 37/03 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP)
H05B 45/58 (2020.01); H05B 47/23 (2020.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 1006759 A2 20000607; EP 1006759 A3 20030423; EP 1006759 B1 20050504; DE 69925092 D1 20050609; DE 69925092 T2 20060126; ES 2248977 T3 20060316; IT 1305051 B1 20010410; IT FI980264 A0 19981204; IT FI980264 A1 20000605
DOCDB simple family (application)
EP 99830640 A 19991011; DE 69925092 T 19991011; ES 99830640 T 19991011; IT FI980264 A 19981204