EP 2041588 A2 20090401 - METHOD AND DEVICE FOR ANALYZING ELECTRIC CABLE NETWORKS
Title (en)
METHOD AND DEVICE FOR ANALYZING ELECTRIC CABLE NETWORKS
Title (de)
VERFAHREN UND EINRICHTUNG ZUM ANALYSIEREN VON ELEKTRISCHEN KABELNETZEN
Title (fr)
PROCEDE ET DISPOSITIF D'ANALYSE DE RESEAUX DE CABLES ELECTRIQUES
Publication
Application
Priority
- EP 2007056834 W 20070705
- FR 0606531 A 20060718
Abstract (en)
[origin: WO2008009566A2] The invention concerns a method and a device for analyzing electric cable networks, in order to detect and localize errors in the networks comprising at least one junction forming the origin of N secondary cable sections. The method contains the following steps: - interposition of a corresponding bidirectional passive filter (FR2, FR3) in series at the entrance of each of the secondary sections (T2, T3) starting at the junction (A), within the network, which filter is suitable for cutting a corresponding frequency range associated to said section, wherein all of the filters allow for passing of the frequencies which are useful for the normal operation of the network - application, at the entrance of the network, of an impulse test signal modulated by N different carrier frequencies, each of which is situated in one of the N frequency ranges of the filters - detection of the temporary position of reflected test signal peaks for each of the N frequencies and thus deduction of the position of possible errors on a network cable section.
IPC 8 full level
G01R 31/11 (2006.01)
CPC (source: EP US)
G01R 31/11 (2013.01 - EP US)
Citation (search report)
See references of WO 2008009566A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2008009566 A2 20080124; WO 2008009566 A3 20080320; EP 2041588 A2 20090401; FR 2904116 A1 20080125; FR 2904116 B1 20080912; JP 2009545196 A 20091217; US 2010141264 A1 20100610; US 8063645 B2 20111122
DOCDB simple family (application)
EP 2007056834 W 20070705; EP 07787124 A 20070705; FR 0606531 A 20060718; JP 2009519913 A 20070705; US 30776107 A 20070705