System and method for detecting attack when sensor and traffic information are inconsistent

Patent metadata

Field	Value
Publication number	US-2019334924-A1
Application number	US-201916507157-A
Country	US
Kind code	A1
Filing date	Jul 10, 2019
Priority date	Jul 30, 2015
Publication date	Oct 31, 2019
Grant date	—

Abstract

Disclosed is a system for detecting an attack, which includes a server and a plurality of vehicles capable of wirelessly communicating with each other. Each of the vehicles has a sensor, a sensor information acquisition unit, a traffic information reception unit, and a transmission unit that transmits the sensor information and the traffic information to the server. The server has a reception unit that receives the sensor information and the traffic information from the vehicles, a verification unit that verifies whether the sensor information and the traffic information are inconsistent with each other, and a notification unit that notifies, when the sensor information and the traffic information are inconsistent with each other, the vehicles of the inconsistency.

First claim

What is claimed is:

1 . A vehicle comprising:
a sensor; and a processor configured to act as:
a sensor information acquisition unit adapted acquire sensor information from the sensor;
a traffic information reception unit adapted to receive traffic information through wireless communication; and
a verification unit adapted to verify whether the sensor information and the traffic information are inconsistent with each other,
wherein the traffic information is information that describes a road condition around the vehicle and is sent from an outside of the vehicle; and the sensor information and the traffic information are determined to be inconsistent with each other when the road condition indicated by the traffic information and a road condition derived from the sensor information do not match.

2 . The vehicle according to claim 1 , wherein the processor further acts as a notification unit adapted to transmit signature information indicating a characteristic of the traffic information determined by the verification unit to be inconsistent with the sensor information, to one of a circumjacent vehicle and a server.

3 . The vehicle according to claim 2 , further comprising:
a storage unit adapted to store the signature information received from another vehicle or the server, wherein the vehicle does not rely on the traffic information consistent with the received signature information.

4 . The vehicle according to claim 2 , wherein
the signature information on the traffic information is the identifier of the transmitter of the traffic information.

5 . The vehicle according claim 1 , wherein
the road condition includes data indicating at least one of presence or absence of traffic jams, presence or absence of road constructions, traffic lane limitations, and icing of roads.

6 . A method for detecting an attack, executed by a vehicle, the method comprising:
acquiring sensor information from the sensor; receiving traffic information through wireless communication; and verifying whether the sensor information and the traffic information are inconsistent with each other, wherein the traffic information is information that describes a road condition around the vehicle and is sent from an outside of the vehicle; and the sensor information and the traffic information are determined to be inconsistent with each other when the road condition indicated by the traffic information and a road condition derived from the sensor information do not

Assignees

• Toyota Motor Co Ltd
• Nat Univ Corp Yokohama Nat Univ

Inventors

• Toyama Tsuyoshi
• Oguma Hisashi
• Matsumoto Tsutomu
• Gotoh Hideki
• Moriya Tomokazu

Classifications

• G06F2221/034

  Test or assess a computer or a system · CPC title

• G07C5/008

  communicating information to a remotely located station (transmission systems for measured values G08C) · CPC title

• G08G1/0112

  from the vehicle, e.g. floating car data [FCD] · CPC title

• G08G1/096716

  where the received information does not generate an automatic action on the vehicle control · CPC title

• G08G1/096775

  where the origin of the information is a central station · CPC title