Coverage keeping method based on sleeping scheduling and coverage compensation

Abstract

The invention discloses a coverage keeping method based on sleeping scheduling and coverage compensation. Specifically, a sleeping scheduling method and a coverage compensation method are simultaneously applied to a scheduling mechanism, and therefore the dual goals of efficient energy utilization and coverage rate keeping are achieved. The coverage keeping method based on sleeping scheduling and coverage compensation comprises the following steps that firstly, a node judges whether surrounding adjacent nodes of the node need to move towards the node through estimating the redundancy and residual energy by itself, wherein a concept of absolute redundant node and a concept of relative redundant node are put forward for the first time in the process; secondly, each of the adjacent nodes judges whether to have the ability of moving to a target position; thirdly, the movement ability of the node is accurately judged in the mode that an energy model is used for energy predication, and therefore the goal of coverage rate keeping is achieved; fourthly, the sleeping scheduling mechanism is applied, waste of the redundant node energy is avoided, and therefore the goal of efficient energy utilization is achieved.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and in particular relates to a coverage control method in topology control. Background technique [0002] Wireless Sensor Network (WSN) emerged with the rapid development of semiconductor technology, communication technology, and computer technology. WSN is a self-organizing network with dynamic topological structure composed of tens of thousands of micro-sensors. It is a comprehensive intelligent information system integrating information collection, information transmission and information processing. [0003] Sensor network topology control technology is one of the core technologies of wireless sensor network research. A good network topology automatically generated through topology control can improve the efficiency of routing protocols and MAC (Medium Access Control) protocols, lay the foundation for data fusion, time synchronization, and target positioning, and help save e...

AI Technical Summary

Problems solved by technology

[0006] It can be seen that there are certain problems in the sleep scheduling and coverage compensation algorithms mentioned above. The generality of the algorithm is not high, which affects the coverage energy of WSN.

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