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Weak fence coverage constructing method for moveable heterogeneous sensor network

A technology of heterogeneous sensors and construction methods, applied in network topology, network planning, electrical components, etc.

Active Publication Date: 2012-06-13
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a weak fence coverage construction method for a mobile heterogeneous sensor network to solve the problem of weak fence coverage in a mobile heterogeneous sensor network.

Method used

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  • Weak fence coverage constructing method for moveable heterogeneous sensor network
  • Weak fence coverage constructing method for moveable heterogeneous sensor network
  • Weak fence coverage constructing method for moveable heterogeneous sensor network

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Embodiment Construction

[0019] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] The specific steps of the weak fence coverage construction method of the mobile heterogeneous sensor network of the present invention are as follows:

[0021] Step 1: Randomly deploy n movable heterogeneous sensor nodes in a rectangular area of ​​length L, and mark the nodes as s from left to right 1 ,s 2 ,...,s n , the abscissa of each node is x 1 , x 2 ,...,x n , the sensing radius is r 1 , r 2 ,...,r n , where 0≤x 1 2 n ≤L, and if x i + r i > x j + r j (1≤i≠j≤n), then x i -r i > x j -r j . Such as Figure 4 As shown in (a), 12 mobile heterogeneous sensor nodes s are randomly deployed in a rectangular area with length L 1 ,s 2 ,...,s 12 , the abscissa is x 1 , x 2 ,...,x 12 , the sensing radius is r 1 , r 2 ,...,r 12 .

[0022] Step 2: Initialize each node s 1 ,s 2,...,s n offset value d 1 , d 2 ,...,d...

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Abstract

The invention discloses a weak fence coverage constructing method for a movable heterogeneous sensor network. The method comprises the following steps of: calculating the mapping of a node covering region on a boundary and a boundary region or gaps uncovered by a node mapping region; moving nodes from left to right in sequence for covering the gaps; and on the premise of ensuring that a new gap is not formed, minimizing a maximum node moving distance, i.e., minimizing a maximum moving distance in all nodes till all gaps are covered by the node mapping region. Due to the adoption of the method, the problem of weak fence coverage in the movable heterogeneous sensor network is solved.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a method for constructing weak fence coverage of a mobile heterogeneous sensor network. Background technique [0002] Wireless sensor network (Wireless Sensor Network, WSN) is composed of a large number of micro sensor nodes deployed in the monitoring area, and forms a multi-hop self-organizing network through wireless communication. , sensor technology, micro-electro-mechanical technology, and distributed information processing technology is an emerging information acquisition technology, which is currently attracting international attention, involving a high degree of cross-discipline and highly integrated knowledge. field. [0003] Coverage control is a basic problem in the research of wireless sensor networks. It refers to the perception of the physical information of the monitored area or the target object through the spatial distribution of sensor nodes in the netwo...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W16/22H04W84/18
Inventor 林亚平罗卿尹波胡玉鹏
Owner HUNAN UNIV
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