Patent
Method and system for the transmission of cyclic and acyclic data
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TLDR
In this paper, the authors proposed a method for transmitting cyclic and acyclic data between at least two user units that are connected to a transmission channel via said transmission channel.Abstract:
One aim of the invention is to create a way to transmit data via a transmission channel which effectively counteracts previously known drawbacks resulting from a ring structure and a line structure while combining advantages of one topology group with advantages of the other topology group. Said aim is achieved by a method for transmitting cyclic and acyclic data between at least two user units that are connected to a transmission channel via said transmission channel, protocol-specific cyclic data being transmitted between at least one user unit acting as a master and at least one user unit acting as a slave. The inventive method is characterized in that data that is to be transmitted during an imminent transmission cycle is checked for redundancy and timeliness relative to corresponding data of a previous cycle while acyclic data is inserted in the data area provided for redundant data instead of said redundant data if an imminent transmission cycle is identified for which redundant data having no new information content is provided.read more
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References
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Patent
Collision-free insertion and removal of circuit-switched channels in a packet-switched transmission structure
TL;DR: In this paper, a method and system for a collision free insertion and removal of circuit-switched channels in a self-adaptive transmission data structure carrying different classes of packetswitched traffic on a slotted Local Area Network (LAN).
Journal ArticleDOI
Standard field bus networks for industrial applications
TL;DR: The aims of this paper are to present the solutions introduced in FIP, PROFIBUS, and SERCOS network architectures which have already been adopted as national standards by some European countries and to offer a preliminary evaluation of the performance which can be expected from this kind of systems.
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Repetitive pattern removal in a voice channel of a communication network
TL;DR: In this article, the authors propose a method to detect and suppress repetitive packets in a voice/data stream, after a predefined number of consecutive repetitive packets have been transmitted, and then, at the receiving side of the network, suppressed repetitive packets are reconstituted by filling the resulting gap in the voice and data stream with the repetitive pattern contained in the last received repetitive packet.
Journal ArticleDOI
Producer-Distributor-Consumer Model on Controller Area Network
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Method for the transmission of data telegrams in a switched cyclical communication system
TL;DR: In this article, real-time-critical data telegrammes are transmitted to a reserved first section (20) of a transmission cycle (31), without the need to first plan the transmission and reception times in the forwarding users, whereby the time for commencing (21) the first section(20), for all users in all transmission cycles, is guaranteed by monitoring.