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Communication link anomaly detection method and device, electronic equipment and network

A communication link and anomaly detection technology, which is applied in the field of communication, can solve problems such as data loss and communication link anomalies that are difficult to be detected in time, achieve rapid positioning and processing, and reduce the risk of continuous data loss

Inactive Publication Date: 2019-04-02
AEROSPACE INFORMATION
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Problems solved by technology

[0004] The purpose of this disclosure is to provide a communication link abnormality detection method, device, electronic equipment and network to solve the problem that the existing RS485 communication link does not perform abnormal detection, which makes it difficult to detect the abnormality of the communication link in time, thereby causing data missing problem

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  • Communication link anomaly detection method and device, electronic equipment and network
  • Communication link anomaly detection method and device, electronic equipment and network
  • Communication link anomaly detection method and device, electronic equipment and network

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[0042] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.

[0043] Before introducing the communication link abnormality detection method provided by the present disclosure, the application scenarios involved in the present disclosure are firstly introduced. The implementation environment involved in each embodiment of the present disclosure may include a communication link, and the communication link may be an RS485 bus. each communication link.

[0044] figure 1 It is a flow chart of a communication link abnormality detection method shown in an exemplary embodiment of the present disclosure. The method can be applied to a target node on the RS485 bus and run in parallel with the application program on the target node. Meth...

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Abstract

The invention relates to a communication link anomaly detection method and device, electronic equipment and a network. The method is applied to a target node on an RS485 bus. The method runs in parallel with an application program on the target node. The method comprises the steps that the target node on the RS485 bus periodically sends a heartbeat detection data packet including a node address toother nodes on the RS485 bus, wherein the heartbeat detection data packet is used for requesting a node specified by the node address to feed back a response data packet to the target node; and it isdetermined that the communication link between the target node and the node specified by the node address is abnormal if the target node does not receive the response data packet used for respondingto the heartbeat detection data packet within a preset period of time.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular, to a method, an apparatus, an electronic device and a network for abnormality detection of a communication link. Background technique [0002] RS485 is a serial data interface standard formulated and released by the American Electronics Industry Association. It adopts a half-duplex communication method and only specifies the electrical characteristics of the interface. At any time of RS485, only one node is in the sending state, and the other nodes must be in the receiving state, so the high-level communication protocol of RS485 generally adopts the master-slave type. Because RS485 has the characteristics of long communication distance, strong anti-interference ability, simple networking, low cost and strong applicability, it has been widely used in the fields of industrial control and intelligent instruments. [0003] At present, the RS485 bus communication ...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/24
CPCH04L41/069H04L43/0811H04L43/10
Inventor 董旭
Owner AEROSPACE INFORMATION
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