A method and device for detecting abnormity

A technology to detect anomalies and to be detected, which is applied in the field of anomalies detection, can solve problems such as inapplicability and limited application range, and achieve the effect of preventing vehicle intrusion events, wide application range, and improving accuracy

Active Publication Date: 2020-06-26
APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this solution can identify abnormal CAN messages with high reliability only when the CAN message format is known, but it cannot be applied in most scenarios where the specific format of the CAN message cannot be obtained, and its application range is limited

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  • A method and device for detecting abnormity
  • A method and device for detecting abnormity
  • A method and device for detecting abnormity

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Embodiment Construction

[0028] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0029] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0030] figure 1 An exemplary system architecture 100 is shown to which embodiments of the method for detecting anomalies or the apparatus for detecting anomalies of the present application can be applied.

[0031] like figure 1 As shown, a vehicle 101 , a network 102 and a...

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Abstract

The embodiment of the invention discloses a method and device for detecting abnormity. A specific embodiment of the method comprises the steps of obtaining a to-be-detected controller area network CANmessage of a to-be-detected vehicle-mounted network; converting the to-be-detected CAN message into a to-be-detected point in an N-dimensional space; inputting the to-be-detected points into a pre-trained CAN message distribution model of the to-be-detected vehicle-mounted network to obtain distribution conditions of the to-be-detected points; and based on the distribution condition of the to-be-detected points, generating an anomaly detection result of the to-be-detected CAN message. According to the embodiment of the invention, the CAN message is converted into the points in the N-dimensional space, and anomaly detection is carried out on the CAN message based on the distribution condition of the points, so that the accuracy of anomaly detection is improved, and the occurrence of a vehicle intrusion event is prevented.

Description

technical field [0001] The embodiments of the present application relate to the field of computer technology, and in particular to a method and device for detecting anomalies. Background technique [0002] The in-vehicle network CAN (Controller Area Network, Controller Area Network) message boundary detection technology is a technology capable of detecting abnormal CAN messages transmitted in the in-vehicle network that do not comply with the current model DBC document. In today's wave of the Internet, technologies such as Internet of Vehicles and autonomous driving have emerged one after another, bringing huge value. But at the same time, the incidents of "hackers" attacking vehicles through network technology have also made people aware of its security risks. As the last line of defense for vehicle information security, the vehicle-mounted network is particularly important for its information security. [0003] Currently, the CAN message boundary detection technology gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B2219/24065G05B23/0213
Inventor 郭青龙
Owner APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECH CO LTD
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