Distributed robust routing method for wireless network in fully mechanized mining face

Abstract

A distributed robust routing method for a wireless network in a fully mechanized mining face, which is suitable for wireless network connection in an underground fully mechanized mining face. During wireless communication, each communication node classifies the neighbor nodes according to the distance between the neighbor nodes and the up and down troughs. That is, each communication node maintains two neighbor node lists; each node optimizes the sending probability of the neighbor nodes in the two neighbor lists according to the distance, throughput and other information of the neighbor nodes. Each neighbor node in the list is randomly selected as the destination to send. If the sending is successful, the sending task of this node ends; otherwise, other neighbor nodes are randomly selected as the destination to send until the data is sent successfully. It has the ability to reduce the delay and jitter of the entire network when the communication node fails, and when the node communication fails, the time delay and delay jitter of the algorithm are small.

Description

Technical field [0001] The invention relates to a distributed robust routing method, in particular to a distributed robust routing method of a fully mechanized mining face used for wireless network connection in a fully mechanized mining face in a coal mine Background technique [0002] Due to the mobility of fully mechanized mining face equipment, the cables are not easy to handle during the movement of the shearer and hydraulic support equipment. The use of wireless network as a communication network can better meet the needs of the face monitoring system. There have been some research results in applying wireless network technology to fully mechanized mining face. [0003] Although the physical length of the working face is not long, the harsh communication environment of the fully mechanized mining face has seriously affected the communication distance and reliability of the fully mechanized mining face. Preliminary theoretical analysis shows that the channel attenuation coeff...

AI Technical Summary

Problems solved by technology

However, this algorithm with routing planning process has poor performance when the network node is unstable. When the next hop node of a node suddenly fails or is moved after the routing algorithm is calculated, then the node will send data when it sends data. Failure, which will cause the entire network node to participate in the routing process

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