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Dynamic-target-tracking-oriented sleeping scheduling method for nodes of energy capturing sensor network

A sensor network and energy harvesting technology, applied in the field of sensor networks, can solve the problem of failing to consider the moving direction and speed of the number of targets

Inactive Publication Date: 2015-01-07
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing sensor network node sleep scheduling method for target tracking has not considered the number of targets, the moving direction and speed of the target, and the situation that the node obtains energy from the outside world.

Method used

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  • Dynamic-target-tracking-oriented sleeping scheduling method for nodes of energy capturing sensor network
  • Dynamic-target-tracking-oriented sleeping scheduling method for nodes of energy capturing sensor network
  • Dynamic-target-tracking-oriented sleeping scheduling method for nodes of energy capturing sensor network

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Embodiment Construction

[0012] (1) Many stationary sensor nodes randomly deployed in the planar area form a sensor network, and multiple targets randomly traverse the area from different directions and at different rates. All nodes can draw energy from the outside world, but only when they are in a dormant state. The present invention adopts the disc perception model, and the perception radius of each node is the same. The meaning of target tracking is that there is a set of sensor nodes, and when the target reaches the sensing range of any one of the nodes, the node is already in working state and can detect the target. The present invention does not consider the technology used by nodes to detect targets, and considers that all nodes have the ability to detect targets. The dormancy scheduling is carried out periodically. When the dormancy scheduling starts, the nodes at the boundary of the observation area are all in the working state to wait for the arrival of the target, and other nodes enter th...

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Abstract

The invention discloses a dynamic-target-tracking-oriented sleeping scheduling method for nodes of an energy capturing sensor network. The dynamic-target-tracking-oriented sleeping scheduling method includes the steps that when sleeping scheduling is started, the nodes on the boundary of an observation area are in the working state for waiting for arriving of a target, and the other nodes get into the sleeping state and capture energy from the outside world; when the center target gets close to the area, the boundary nodes detecting that the target appears notify the other boundary nodes and the neighbor nodes in a broadcasting mode and awaken the neighbor nodes to track the target. The dynamic-target-tracking-oriented sleeping scheduling method can adapt to the situations that the number, the movement direction and the speed of the target are changed and the nodes capture the energy from the outside world, the energy captured from the outside world can be used in an optimized mode, the life cycle of the network can be prolonged, and meanwhile the dynamic target tracking performance requirement can be met.

Description

[0001] technical field [0002] The invention relates to the technical field of sensor networks, in particular to an energy harvesting node sleep scheduling method for dynamic target tracking. Background technique [0003] The main feature that distinguishes sensor networks from other wireless networks is that sensor nodes are powered by their own batteries, and the available energy is limited. Therefore, the primary goal of architecture, algorithm, and protocol design in sensor networks is to save energy and prolong the network life cycle. Sleep scheduling is a typical sensor network topology control technology. Its core idea is to let as many redundant nodes as possible enter the sleep state while meeting certain application performance requirements. [0004] Target tracking has been widely used in emergency rescue, intelligent navigation, deep space exploration, military confrontation and other fields. It judges the movement of the target in real time and then reacts thr...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W84/18
CPCH04W52/0225H04W52/0229H04W84/18Y02D30/70
Inventor 陈宏滨谭松高曾倩李雪艳
Owner GUILIN UNIV OF ELECTRONIC TECH
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