Coverage Preservation Method Based on Sleep Scheduling and Coverage Compensation

A sleep and node technology, applied in the direction of climate sustainability, sustainable communication technology, advanced technology, etc., can solve the problems of affecting WSN coverage energy and low algorithm versatility, achieve efficient use of coverage, avoid energy waste, The effect of maintaining coverage

Active Publication Date: 2016-03-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
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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.

Method used

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  • Coverage Preservation Method Based on Sleep Scheduling and Coverage Compensation
  • Coverage Preservation Method Based on Sleep Scheduling and Coverage Compensation
  • Coverage Preservation Method Based on Sleep Scheduling and Coverage Compensation

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Embodiment Construction

[0037] In order to facilitate the understanding of the technical solution of the present invention, some terms are defined first.

[0038] Definition 1: Wireless Sensor Network (WSN), WSN is a self-organizing network with a dynamic topology composed of thousands of micro-sensors, and is a comprehensive intelligent information system integrating information collection, information transmission, and information processing ; It has the characteristics of large-scale, self-organizing, multiple routing, dynamic, data-centric, and compatible applications. The node density in WSN is large enough. At the beginning, all the nodes are fully working, which can not only guarantee the coverage quality required by the application, but also have a large number of redundant nodes.

[0039] Definition 2: Sensor node, a sensor node is a micro-embedded device that has the characteristics of low price and low power consumption, but at the same time has the problems of limited power supply energy...

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Abstract

The invention discloses a coverage maintenance method based on sleep scheduling and coverage compensation. Specifically, the two methods of sleep scheduling and coverage compensation are adopted in the scheduling mechanism, thereby achieving the dual goals of efficient energy utilization and coverage maintenance. Firstly, the node judges whether it needs the surrounding neighbor nodes to move to it by estimating its own redundancy and remaining energy; the concept of absolute redundant node and relative redundant node is proposed for the first time; then the neighbor node judges whether it has the ability to move to the target The ability of location; by using the energy model for energy prediction to accurately judge the mobility of nodes, and then achieve the goal of maintaining coverage, and then adopt a sleep scheduling mechanism to avoid the waste of redundant node energy and achieve high-efficiency energy utilization The goal.

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 (WirelessSensorNetwork, WSN) appears 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 (MediumAccessControl) protocols, lay the foundation for data fusion, time synchronization, and target position...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W84/18
CPCH04W52/0206Y02D30/70
Inventor 罗俊海葛桐羽蔡济杨刘骁李涛倪静
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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