Ring network-based communication method and ring network

A communication method and technology of a ring network, which are applied to the communication method based on the ring network and the field of the ring network, can solve the problems of low real-time and low reliability of communication, meet the real-time performance of communication, improve application flexibility, improve certainty and reliability. The effect of reliability

Inactive Publication Date: 2010-07-14
SUPCON GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiments of the present application is to provide a ring network-based communication method and ring network to solve the problem of low real-time and reliability of ring network communication in the prior art

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  • Ring network-based communication method and ring network
  • Ring network-based communication method and ring network
  • Ring network-based communication method and ring network

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Embodiment Construction

[0065] In the following multiple embodiments of the present application, some embodiments provide a communication method based on a ring network, and some embodiments provide a ring network. The ring network in the embodiment of the present application includes several devices, which are connected to each other to form a single ring physically, and each of the devices includes at least two ports, and the ring network includes the main lines and alternate lines. All devices are initialized and configured before the ring network is started, including configuring device types, communication cycles, and the order of sending messages, etc.; after the ring network is started, the ring network power-on circuit self-test is first performed by sending a line check message, and the self-test passes Afterwards, each device synchronizes the clock with the clock server. After the synchronization is established, the ring network enters the real-time communication stage. In each communicatio...

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Abstract

An embodiment of the invention discloses a ring network-based communication method. A ring network comprises a plurality of apparatuses; the apparatuses are physically connected mutually to form a single ring; each apparatus at least comprises two ports; and the ring network comprises a main line and a spare line which are in a communication state. The method comprises the following steps that: in each communication period of performing real-time communication, each apparatus of the apparatuses sends messages from the main line and the spare line according to a previously set sequence and receives the messages sent by other apparatuses; and when the messages which are mutually redundant and sent by the same apparatus, the equipment selects a message from the messages which are mutually redundant. In each communication period, all apparatuses redundantly send the messages according to an initially configured sequence so as to avoid message collision, avoid the influence of packet loss, error code and the like on the communication, and improve the determinacy and the stability of the communication of the ring network.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a communication method based on a ring network and a ring network. Background technique [0002] A ring network uses a continuous ring to connect each device together. It can ensure that the signal sent by one device can be received by all other devices on the ring. As a mature network topology, the ring network has the advantages of low cost, high reliability, high transmission rate and simple networking, and is gradually applied in the field of industrial control. When communicating based on a ring network, how to avoid logical looping on the physical ring and how to build a fast fault detection mechanism have always been the focus of research. Taking an Ethernet ring network as an example, it generally uses a STP (Spanning Tree Protocol, Spanning Tree) protocol to protect the topology of the network. [0003] The inventor found in the process of research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/42H04L29/06H04L12/24H04L12/56
Inventor 冯冬芹王强褚健金建祥
Owner SUPCON GRP
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