Unauthorized activity detection method, monitoring electronic control unit, and onboard network system
US10992688B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2018 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Jan 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An unauthorized activity detection method is provided in an onboard network system having multiple electronic units (ECU) that perform communication via a bus, such that an occurrence of an unauthorized state can be detected by monitoring frames transmitted over the bus. The unauthorized activity detection method determines, by a monitoring electronic control unit using unauthorized activity detection rule information indicating a first condition, whether or not a set of frames received from the bus satisfies the first condition. The first condition being a condition regarding a relation in content between a first frame having a first identifier and a second frame having a second identifier that differs from the first identifier. And the method further detects the occurrence of the unauthorized state in a case where the first condition is not satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.