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A WMN-based multi-strategy hybrid repair routing method for underground mines

A multi-strategy, underground technology, applied in the field of wireless communication, can solve problems such as poor robustness and low network connectivity, and achieve the effect of reducing packet loss and delay, and repairing routes

Active Publication Date: 2019-06-04
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the narrow and long underground roadway, the underground network is mostly a strip topology, with low network connectivity and poor robustness

Method used

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  • A WMN-based multi-strategy hybrid repair routing method for underground mines
  • A WMN-based multi-strategy hybrid repair routing method for underground mines
  • A WMN-based multi-strategy hybrid repair routing method for underground mines

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Experimental program
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Embodiment Construction

[0048] The routing method proposed by the invention includes four parts: network initialization, information maintenance between nodes, routing establishment and routing maintenance.

[0049] Step A, network initialization:

[0050] In step A-1, the node establishes a neighbor table and a routing table, and applies for memory space for it.

[0051] Step A-2, initialize the serial number of the node, set the HELLO message timer, neighbor cache timer, route cache timer and other related timers.

[0052] Step A-3, the node initializes the HELLO data packet.

[0053] Step B, information maintenance between nodes:

[0054] Nodes regularly exchange information through HELLO data packets and maintain neighbor tables. If the node receives the HELLO message sent by the node, it will check whether the neighbor exists in the neighbor table, and if it does not exist, it will be added to the neighbor table. If a HELLO message from a neighbor node in the neighbor table has not been rece...

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Abstract

The present invention proposes a WMN-based mine multi-strategy hybrid repair routing protocol, which includes network initialization, inter-node information maintenance, routing establishment and routing maintenance; Repair, because the network overhead caused by this approach is very small, so the route is repaired with little impact on network performance; when the early repair fails, a small-scale quick repair is performed and the second repair after the quick repair fails. During the process, nodes with a higher success rate can be selected as much as possible for route repair, and at the same time, the overhead caused is relatively small. This protocol provides a relatively complete solution to various network topology faults, and can effectively repair routes with little impact on the network, and has a good effect on networks in complex environments.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a WMN-based multi-strategy hybrid repair routing method in underground mines. Background technique [0002] With the coal mining and roadway excavation, the coal mining face and the tunneling face in the coal mine are constantly advancing. It is a mobile working environment, and the underground environment is harsh and the mining conditions are complex. The wired communication network cannot reach these special areas, because the wired nodes are affected. The limitation of its data transmission method makes the deployment and control range of the wired link limited, which is easily restricted by environmental factors, and the monitoring points of the wired network are limited, so it is impossible to monitor disaster information in these areas in an all-round way. Due to the poor expandability of the wired network and the relatively weak ability to respond to faults...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/703H04W40/04H04W40/12H04W40/24H04W84/18H04L45/28
CPCH04L45/28H04W40/04H04W40/125H04W40/248H04W84/18Y02D30/70
Inventor 江海峰韩广智吕恋生
Owner CHINA UNIV OF MINING & TECH
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