Routing method for WSN linear coverage sleep scheduling based on target distance

Abstract

The invention relates to a routing method for WSN linear coverage dormancy scheduling based on a target distance. The routing method comprises the following steps thatafter receiving a 'hello' message flooded by a sink node, each node enters a sleep mode to wait for a target to appear; after the target appears, the node sensing the target enters a working mode and selects a cluster head; after the cluster head is selected, other nodes in the working mode execute a WSN linear coverage sleep scheduling method based on the target distance, and after the sleep scheduling process is finished, the nodes still in the working mode and the cluster head form a current cluster structure; the cluster head of the current cluster structure predicts a to-be-moved position of the target, and activates nodes around the predicted target moving position to form a next cluster structure; and the cluster head of the next cluster structure wakes up, receives the sensing data of each cluster node, fuses the sensing data and forwards the fused sensing data to the sink node through a preset transmission path. Redundant nodes can be reduced, and the service life of the network is prolonged.

Description

technical field [0001] The invention relates to the field of communication and information technology, in particular to a routing method for WSN linear coverage dormancy scheduling based on target distance. Background technique [0002] As a new information perception and acquisition method, Wireless Sensor Network (WSN) has been widely used in environmental detection, medical care, intelligent transportation and other fields. Among them, the target tracking technology supported by large-scale WSN can be directly applied to many scenarios, including the location finding of missing persons, vehicle navigation of intelligent transportation systems, and so on. It is an important research topic in this field to use an efficient method to reduce the energy consumption of nodes and effectively prolong the survival time of the network. [0003] Sleep scheduling is a key technology that can prolong the lifecycle of large-scale WSNs. Generally speaking, a large-scale WSN will rando...

AI Technical Summary

Problems solved by technology

[0004] Although great progress has been made in the research on dormant scheduling methods in recent years, when they are applied to target tracking scenarios, these studies do not take into account the scale of nodes involved in the scheduling method and the relationship between scheduling rules and targets, resulting in network Nodes that undertake critical tasks in the network mistakenly go to sleep, while idle nodes are mistakenly activated, which will cause coverage holes and redundant resources in the network

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