Coverage keeping method based on sleeping scheduling and coverage compensation

A technology of sleep and redundancy, applied in the direction of climate sustainability, sustainable communication technology, advanced technology, etc., can solve the problems of affecting WSN coverage energy and algorithm versatility, so as to achieve efficient use of coverage and avoid energy failure Waste, the effect of maintaining coverage

Active Publication Date: 2013-09-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Application Information

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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.

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  • Coverage keeping method based on sleeping scheduling and coverage compensation
  • Coverage keeping method based on sleeping scheduling and coverage compensation
  • Coverage keeping method based on sleeping 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 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...

Claims

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Application Information

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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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