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Method and device for decoding a signal

A decoding method and signal technology, applied in the field of decoding signals, can solve problems such as deteriorating the usability of a data transmission system

Inactive Publication Date: 2008-04-23
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, a disadvantage of frequent request error detection algorithms is the associated degradation of the availability of the data transmission system, since, for example, erroneous data have to be retransmitted or discarded

Method used

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  • Method and device for decoding a signal

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Embodiment Construction

[0043] The networking of control devices, sensors and actuators by means of a communication system or data transmission system and a communication connection, for example in the form of a bus system, has in recent years not only in modern vehicle construction but also in machine construction, Especially in the field of machine tools, but also in automation is growing dramatically. In this case, synergy can be achieved by distributing the functions among several users of the communication system (for example, control devices). Hence it is called a distributed system.

[0044] Communication between the various subscribers of such a data transmission system increasingly takes place via bus systems. The communication, access and reception mechanisms and error handling on the bus system are regulated by a protocol. A known protocol is, for example, the FlexRay protocol, currently based on the FlexRay specification V2.1. The FlexRay is a fast, deterministic and fault-tolerant bus...

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Abstract

The invention relates to a method and a device for decoding a signal (10) that is transmitted via at least one connection line (32) of a data transmission system, in a subscriber (30) of the data transmission system receiving the signal (10). According to the invention, the interval caused by a modification of the signal (10), obligatorily provided in a transmission protocol used in the data transmission system, from the rising edge to the falling edge or the falling edge to the rising edge, is measured. The tendency for an asymmetrical delay of the signal (10) can be determined from the measured interval. The scanning of the bits of the received signal (10) can be improved according to the interval or the asymmetrical delay, for example by adjusting the scanning point (12') in a variable manner. Alternatively, the interval or the asymmetrical delay are used for diagnosis purposes.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for decoding a signal in a user of a data transmission system receiving a signal which is transmitted via at least one connecting line of the data transmission system. The invention also relates to a system for transmitting signals according to the preamble of claim 10 . Furthermore, the invention relates to a user of a data transmission system according to the preamble of claim 12 . The invention finally also relates to a communications controller for a user of a data transmission system as claimed in the preamble of claim 14 . Background technique [0002] The networking of control devices, sensors and actuators by means of a communication system or data transmission system and a communication connection, for example in the form of a bus system, has recently been used in modern vehicles and in other fields such as in machine building, Especially in the field of machine tools and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40
CPCH04L12/433
Inventor F·哈特威克A·-J·罗哈特谢克E·博尔
Owner ROBERT BOSCH GMBH
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