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Method for determining position of resonant repeater in rechargeable sensor network

A technology for sensor networks and determination methods, which is applied in the field of energy supplementation of wireless rechargeable sensor network nodes, and can solve problems such as charging restrictions

Active Publication Date: 2018-01-16
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In 2012, Liguang Xie proposed in the document On Renewable Sensor Node Networks with WirelessEnergy Transfer: The Multi-Node Case.proc.of SENCON, IEEE, 2012 that in the wireless sensor network, regular hexagonal cells are used to divide the two-dimensional plane. Place the relay node at the center of each unit, and deploy a charging car to supplement the energy of the node by periodically visiting the location of the relay node and using the energy multi-hop method. In this way, the time slot is fixed and the charging is limited.

Method used

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  • Method for determining position of resonant repeater in rechargeable sensor network
  • Method for determining position of resonant repeater in rechargeable sensor network
  • Method for determining position of resonant repeater in rechargeable sensor network

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Embodiment 1

[0075] Embodiment 1: as Figure 1-6 As shown, a method for determining the position of a resonant repeater in a rechargeable sensor network includes the following steps:

[0076] Step1: Establish a wireless rechargeable sensor network model: randomly deploy 25-200 sensor nodes, a charging car and the corresponding base station in a certain monitoring area; Ui represents the set of sensor nodes, where the subscript i represents the i-th sensor nodes; the battery capacity carried by each sensor node is E`=Efull, the survival energy threshold of the i-th sensor node is maintained as ETi, and the energy consumption cycle is ECi;

[0077] The initial sensor node information is Ui (flag(i)=0, mark(i)=-1), where flag(i)=0 means that the node has not been visited, and mark(i)=-1 means the sensor node i does not belong to the charging range of any relay node; the base station is located at the dot position BS=(0,0) on the two-dimensional space plane, which is used to collect the infor...

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Abstract

The invention discloses a method for determining the position of a resonant repeater in a wireless rechargeable sensor network, which belongs to the field of node energy supplement in a wireless rechargeable sensor network. In a wireless rechargeable sensor network, a mobile charging trolley is used to supplement energy for sensor nodes. By introducing a resonant repeater, the sensor nodes can becharged in a multi-hop manner. The charging distance of the mobile trolley can be significantly extended, the delay for the nodes to wait for charging can be reduced, and the charging efficiency can be improved on the whole. In the invention, it is proposed to determine the charging position of the resonant repeater by making use of the property of the circumscribed circle of a triangle and the property of the midpoint of two nodes, and the sensor nodes in the network can be covered to the maximum with a smaller number of repeaters. The problem that the energy of the nodes in a wireless sensornetwork is limited can be solved, and the service life of the network can be prolonged.

Description

technical field [0001] The invention relates to a method for determining the position of a resonant repeater of a rechargeable sensor network, in particular to a method for placing a relay node of the sensor network, and belongs to the field of energy supplementation of wireless rechargeable sensor network nodes. Background technique [0002] The wireless sensor network is composed of a large number of stationary or mobile sensor nodes. The sensor nodes can perceive, collect, and process information in the network in multiple directions, and report the information of the network coverage objects to the user in a wireless manner. Sensor nodes form a network through self-organization and transmit information data to the base station through flooding. In some harsh or dangerous monitoring environments, such as ocean monitoring, volcanic monitoring, vehicle tracking, and military fields, in addition, nodes in wireless sensor networks are randomly deployed in environments that ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W4/021H04W40/22H04W84/18H02J50/90H02J50/40H02J50/80
Inventor 冯勇郭磊王锋付晓东
Owner KUNMING UNIV OF SCI & TECH
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