Title:
COMMUNICATION SYSTEM, ABNORMALITY DETECTION DEVICE, AND ABNORMALITY DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2016/114301
Kind Code:
A1
Abstract:
The present invention provides a communication system, an abnormality detection device, and an abnormality detection method with which it is possible to detect communication-related abnormality such as the falsification of information utilizing a difference in sampling timing among a plurality of communication devices. For a system configuration in which ECUs 3a-3e transmit/receive information via a common communication line, communication-related abnormality is detected by a monitoring device connected to this communication line. Each of the ECUs 3a-3b receives information by performing sampling once with prescribed timing during the transmission period of 1-bit information. However, the plurality of ECUs 3a-3e is permitted to perform sampling with different timing. The monitoring device samples the voltage of the communication line multiple times over a prescribed monitoring period including the fastest timing of sampling and the slowest timing of sampling by the ECUs 3a-3e in the 1-bit information transmission period, and detects abnormality on the basis of the result of multiple times of sampling.
Inventors:
TAKADA HIROAKI (JP)
KURACHI RYO (JP)
UEDA HIROSHI (JP)
KURACHI RYO (JP)
UEDA HIROSHI (JP)
Application Number:
PCT/JP2016/050826
Publication Date:
July 21, 2016
Filing Date:
January 13, 2016
Export Citation:
Assignee:
UNIV NAGOYA NAT UNIV CORP (JP)
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
H04L12/28; H04L12/40; H04L69/40
Foreign References:
| JP2015005829A | 2015-01-08 | |||
| JP2009181431A | 2009-08-13 | |||
| JP2005333222A | 2005-12-02 |
Attorney, Agent or Firm:
KOHNO, Hideto et al. (JP)
Hidehito Kono (JP)
Hidehito Kono (JP)
Download PDF: