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Method for detecting a deterioration in a network

A technology for identifying networks and networks, which is applied in the field of computer programs and can solve problems affecting the identification of senders or reliable functions of attack identification

Pending Publication Date: 2021-03-05
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This interference may therefore affect the reliable function of sender identification or attack identification via signal fingerprinting

Method used

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  • Method for detecting a deterioration in a network
  • Method for detecting a deterioration in a network

Examples

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Embodiment Construction

[0030] figure 1An exemplary system is shown in which embodiments of the invention may be applied. The system comprises a network 1 having a bus line 10 which is equipped at its ends with terminating resistors 20 , 22 . A plurality of members 30 , 32 , 34 , which are also referred to as nodes, and in particular electronic control units (ECU, electronic control unit) in the case of a vehicle bus, can be connected to the bus. ), the plurality of electronic control units can control different associated modules such as actuators and sensors in the vehicle and can thus support various tasks ranging from the braking system via the positioning system to engine control functions.

[0031] In this case, a plurality of components can be connected to a bus line, often 5 to 10 components per bus line 10 in a vehicle. Each network member 30, 32, 34 comprises at least one corresponding control unit and a transceiver or transceiver which can send and receive signals on the bus.

[0032] I...

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PUM

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Abstract

The invention relates to a method for detecting a deterioration in a network. The method for detecting a deterioration of network components in a network is provided. The method includes the evaluation (130), in an evaluation unit, of at least one ascertained signal parameter of a signal that is transmitted in a network (1), in order to determine a signal quality of the signal, and establishing (150) that a deterioration of the network exists if the signal quality lies outside a predefined range.

Description

technical field [0001] The present invention relates to a method for detecting variations of network components in a network, as well as to a computing unit and a computer program for carrying out the method. Background technique [0002] In order to achieve a certain level of security when transmitting messages and signals in a network, it is desirable that the sender be respectively unambiguously authenticated and that signals transmitted over the transmission path be prevented from being altered without authorization. [0003] For this purpose, various measures are generally known in the field of network technology, for example the use of signatures or MACs (Message Authentication Codes). [0004] However, not all of these measures can reasonably be used in any network. For example, some systems are limited with respect to signal or message size, or there are only limited resources available for processing, such as in real time. [0005] An example of this is a bus syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/40
CPCH04L63/1416H04L12/40006H04L2012/40215H04L63/1425H04L2012/40273G06N20/00H04L12/40H04L63/14G06N3/08G06N3/047
Inventor C.胡斯M.克奈博
Owner ROBERT BOSCH GMBH