Method for energy-saving coverage of directional sensor network based on virtual force correction

A sensor network and sensor node technology, applied in the field of energy-saving optimization of regional monitoring coverage, can solve the problems of short network life cycle, low coverage quality, poor regional monitoring effect, etc., achieve long-term regional coverage, extend network time, and extend coverage the effect of time

Active Publication Date: 2019-04-05
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0006] In order to overcome the shortcomings of the existing directional sensor network, such as poor monitoring effect, low coverage quality, and short network life cycle, the present invention provides a sensor energy-saving coverage method based on virtual force correction in the directional sensor network, which can take into account both While saving the energy consumption of the nodes, use the virtual force to reasonably and moderately rotate the sensing direction of the nodes to improve the coverage quality of the monitoring area

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  • Method for energy-saving coverage of directional sensor network based on virtual force correction
  • Method for energy-saving coverage of directional sensor network based on virtual force correction
  • Method for energy-saving coverage of directional sensor network based on virtual force correction

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] refer to figure 1 and figure 2 , an energy-saving overlay method for directed sensor networks based on virtual force correction, including the following steps:

[0038] Step 1: Randomly deploy directional sensor nodes in the target monitoring area, and number the directional sensor nodes S={S i |i=1,2,...,n};

[0039] Step 2: Calculate and obtain the centroid point c of each node i ,initial position

[0040] The third step: to node s i Count all its neighbor nodes as a set ψ i , M represents the number of elements in the neighbor node set;

[0041] Step 4: Node s i According to the neighbor node set ψ i , calculate the node s in the set j to node s i virtual repulsion

[0042]

[0043] Among them, D ij represents the centroid point c i to centroid point c j Euclidean distance; K R Indicates the repulsion coefficient, KR = 1; α ij is a un...

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Abstract

A method for energy-saving coverage of a directional sensor network based on virtual force correction includes the following steps of: (1) randomly deploying a plurality of directional sensor nodes ina monitoring area; (2) calculating a centroid point ci of each node and an initial position as shown in the description; (3) calculating all neighbor nodes of a node si as a set [psi]i; (4) performing energy-saving coverage method for virtual force correction; (5) performing node rotation decision; and (6) calculating the vector of the node si pointing to the corresponding centroid point ci and performing unitization to obtain final perception direction information of the node si and obtain an output set of the node perception direction. The method for energy-saving coverage of a directionalsensor network based on virtual force correction achieves the target of node energy consumption balance and prolongs the coverage time of the whole network in the condition of striving to improve thearea coverage quality.

Description

technical field [0001] The invention relates to a directed sensor network, in particular to a method for energy-saving optimization of regional monitoring coverage in the directed sensor network. technical background [0002] Directional sensors such as video, infrared, and ultrasonic sensors have the ability to collect, transmit, and process multimedia information such as data, images, and videos. The visual monitoring of this type of sensor has the characteristics of convenience, intuition, and rich information. It has been widely used in industry, agriculture, military, monitoring security and environmental monitoring in recent years, and has a good development prospect. [0003] Area coverage control is an important research hotspot in directional sensor networks. However, directional sensors are different from traditional sensors. Due to the limitation of the field of view of their own devices, their sensing range is a fan-shaped area with the node as the center and th...

Claims

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Application Information

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IPC IPC(8): H04W16/20H04W16/28H04W40/10H04W52/36H04W84/18
CPCH04W16/20H04W16/28H04W40/10H04W52/365H04W84/18Y02D30/70
Inventor 蒋一波方剑王伟何成龙
Owner ZHEJIANG UNIV OF TECH
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