Recovery and replacement-based coverage hole elimination method

A technology covering voids and voids, applied in electrical components, wireless communication, network planning, etc., can solve the problems of non-renewable hardware, high cost, environmental pollution of hardware batteries, etc.

Active Publication Date: 2014-04-09
郎溪品旭科技发展有限公司
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Problems solved by technology

Incremental deployment is to redeploy new nodes. Due to the non-renewable node hardware, the cost is relatively high; the second is that hardware and waste batteries are easy to cause environmental pollution

Method used

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  • Recovery and replacement-based coverage hole elimination method
  • Recovery and replacement-based coverage hole elimination method
  • Recovery and replacement-based coverage hole elimination method

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] refer to Figure 4 , Figure 5 , Image 6 , Figure 7 , the technical scheme adopted by the present invention to solve its technical problem is:

[0050] A method for eliminating coverage holes based on recycling and replacement, the method comprising the following steps:

[0051] Step 1, grid-based coverage hole detection algorithm

[0052] After N nodes are randomly deployed, the leach protocol is used for clustering, and the grid method is used to calculate the coverage C. 0 , covering the number of holes H and the number of redundant nodes R (there are only these two types of nodes in the network); after the sink node collects this information, it notifies the mobile node; at this time, the energy charging station, the sink node, and the mobile robot are in the same position; based on the network The specific operation steps of the grid coverage hole d...

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Abstract

A recovery and replacement-based coverage hole elimination method comprises the following steps of (1) calculating the coverage degree, energy coverage density, hole number, and redundant node number by using a grid method after the random deployment of N nodes; (2) calculating the number of nodes carried by a mobile robot; (3) calculating recovery and replacement paths for the mobile robot according to the principle that the redundant node closest to the certain hole is used to patch the hole; (4) enabling the robot to conduct the recovering and replacing of the nodes; (5) charging the recovered nodes immediately after the moved nodes come back to an energy station and charging the moved nodes; and (6) getting back to the step (2) and retriggering the recovering and replacing of the nodes.

Description

technical field [0001] The invention relates to a method for eliminating coverage holes in wireless sensor networks based on recycling and replacement Background technique [0002] In the sensor network composed of static nodes, after the nodes are randomly deployed, there are coverage holes and redundant nodes. Find redundant nodes. Redundant nodes cause waste of network energy, and holes cause coverage and event detection rates to decrease. On the other hand, the node energy is limited, and the node energy in the area with frequent events will be quickly exhausted, resulting in coverage holes, and this area is an area that needs to be monitored, and nodes damaged by enemy attacks will also generate new the void. All of these will lead to the degradation of the performance of the sensor network. How to solve coverage holes and enhance coverage is one of the research hotspots in recent years. The solutions to such problems are mainly redeployment and incremental deploym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00H04W16/18
Inventor 范兴刚林星星张兆娟王恒
Owner 郎溪品旭科技发展有限公司
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