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Intelligent star coupler for time triggered communication protocol and method for communicating between nodes within a network using a time trigger protocol

A time-triggered protocol, star coupler technology, applied in the directions of star/tree network, ring network, multiplexing communication, etc. Effects of increased data traffic, high total available bandwidth

Active Publication Date: 2009-08-19
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The known star coupler concept is capable of disconnecting one or more connected legs from the rest of the cluster, but does not support separate operation of individual paralleled legs

Method used

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  • Intelligent star coupler for time triggered communication protocol and method for communicating between nodes within a network using a time trigger protocol
  • Intelligent star coupler for time triggered communication protocol and method for communicating between nodes within a network using a time trigger protocol
  • Intelligent star coupler for time triggered communication protocol and method for communicating between nodes within a network using a time trigger protocol

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Embodiment Construction

[0027] figure 1 The network used in the present invention is shown. figure 1 The shown cluster is divided into subnetworks (A-D), each of which is supported by a passive bus or an active star coupler in a connection topology. These sub-networks are interconnected by intelligent star couplers 11 provided for internal sub-network communication. Several subnetworks A-D are connected to an intelligent star coupler 11 . Subnets A-D have different topologies. Specifically, subnet B is depicted as including a passive bus. Subnetwork C includes a hybrid topology with star coupler and passive bus topology. Subnet D includes an active star topology, where subnet A includes only a single node. Naturally, any number of subnets can be connected. Depending on the protocols used in the network, it is possible to limit the topology to only one subnet that can contain a single conventional active star coupler.

[0028] refer to figure 2, specifically describe node n in this subnetwork...

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Abstract

This invention relates to a star coupler connected to a plurality of nodes within a network using a time triggered protocol on a time slot basis. The invention further relates to a network including a cluster having at least one node. Further, the invention relates to a method for communication between nodes within a network using a time trigger protocol. To provide a star coupler, which is able to increase the bandwidth and to communicate with low propagation delay for communicating the relevant data it is proposed to provide a star coupler (11) comprising a switch (12) having a plurality of input branches and output branches, wherein a switch controller (13) is provided for controlling the switch (12), further comprising means (14, 15) for deriving knowledge about the protocol timing, which knowledge is used for selectively forward data in a certain time slot to at least one predetermined output.

Description

technical field [0001] The present invention relates to a star coupler connected to a plurality of nodes in a network using a slot-based time-triggered protocol. The invention also relates to a network comprising a cluster, wherein the cluster comprises at least one node. Furthermore, the invention relates to a method of communicating between nodes in a network using a time-triggered protocol. Background technique [0002] Reliable automated communication networks generally rely on time-triggered communication protocols such as TTP / C or FlexRay based on propagation methods according to predetermined TDMA mechanisms. A time-triggered protocol is proposed for use in distributed real-time communication systems eg in the automotive industry. Such a communication protocol is described in "FlexRay - A Communication System for advanced automated Control Systems" in SEAworld congress 2001. [0003] In these systems, the medium access protocol is based on a timetriggered multiplex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/417H04L12/43H04L12/44H04L12/56
CPCH04L49/55H04L2012/445H04L12/40006H04L2012/40241H04J3/0685H04L12/43H04L12/44H04L12/28H04L12/417
Inventor 弗朗茨·翁格曼安德烈斯·范瓦格宁根
Owner NXP BV
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