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1. (WO2010122255) NON-INVASIVE DEVICE FOR DIAGNOSING OPERATIONAL DEFECT(S) IN AT LEAST ONE COMMUNICATION NETWORK

Pub. No.:    WO/2010/122255    International Application No.:    PCT/FR2010/050719
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Thu Apr 15 01:59:59 CEST 2010
IPC: H04L 12/26
H04L 12/28
H04L 12/40
H04L 12/10
G01R 19/00
Applicants: PEUGEOT CITROËN AUTOMOBILES SA
MORAND, Nicolas
Inventors: MORAND, Nicolas
Title: NON-INVASIVE DEVICE FOR DIAGNOSING OPERATIONAL DEFECT(S) IN AT LEAST ONE COMMUNICATION NETWORK
Abstract:
The invention relates to a device (D) that is dedicated to detecting operational defect(s) in at least one communication network (CN) having access to a bus (BU). Said device (D) includes: i) connection means (CM1) capable of being connected onto the bus (BU) with a bypass to access the voltages (V1, V2) therein; ii) detection means (DM) arranged to analyze said voltages (V1, V2) to deliver a first signal (S1) representative of the presence of data in the network (CN) and a second signal (S2) representative of the operating status of the network (CN); iii) processing means (MT1) arranged to output, from first (S1) and/or second (S2) signals and/or third signals (S311-S322), each representative of a comparison result between one of the voltages (V1, V2) and at least one reference voltage, at least a fourth signal (S41-S46) representative of a defect or of an absence of defects; and v) display means (DM1) arranged to signal each operational defect or absence of operational defects represented by a fourth output signal (S41S46).