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Directed wireless charger deployment method for multi-hop rechargeable sensor network

A wireless charger and charger technology, applied in wireless communication, services based on specific environments, network planning, etc., can solve problems such as node failure, wireless charger is expensive, link disconnection, etc.

Pending Publication Date: 2020-10-13
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For fixed wireless charging, due to the high price of wireless chargers, it is unrealistic to arrange a large number of chargers in the area, and mobile charging often cannot adapt to the dynamic consumption of nodes, resulting in nodes that cannot be charged in time. Invalid due to being charged, resulting in serious consequences such as data loss, link disconnection, etc.

Method used

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  • Directed wireless charger deployment method for multi-hop rechargeable sensor network
  • Directed wireless charger deployment method for multi-hop rechargeable sensor network
  • Directed wireless charger deployment method for multi-hop rechargeable sensor network

Examples

Experimental program
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Embodiment

[0056] Example: The deployment method for directed wireless chargers in a multi-hop wireless rechargeable sensor network. First, according to the charging range of the charger and the actual distribution of nodes, the size of the area circle is determined and the nodes in the entire area are divided into Several sub-regions, and a series of candidate deployment positions for chargers are obtained in the sub-regions; secondly, based on the greedy principle, a method for finding multi-hop charging paths in the sub-regions is designed. Finally, according to the distribution of nodes in the sub-regions, a method for finding charging is designed. The optimal deployment position and direction of the device.

[0057] The specific steps of the scheme are as follows:

[0058] Step1 sub-area division

[0059] Step1.1 Determine the diameter of the area circle

[0060] Assuming that N sensor nodes are randomly distributed in a square plane area Ω with side length a, these N sensor nodes are deno...

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Abstract

The invention discloses a directed wireless charger deployment method used in a multi-hop rechargeable sensor network, and belongs to the field of Internet-of-Things wireless rechargeable sensor networks, and the method comprises the steps: firstly dividing nodes in a whole area into a plurality of subareas through a circular coverage method according to the charging range of a charger and the actual distribution of the nodes; secondly, designing a multi-hop charging coverage method of the nodes to determine a multi-hop charging path of the nodes; and finally, designing a method for searchingfor the optimal deployment position and angle of the charger according to the node distribution condition in the subarea. According to the method, the problem of directed charger deployment in the multi-hop wireless rechargeable sensor network is solved, and the method is an economical and effective energy supplementing method for prolonging the life cycle of the wireless rechargeable sensor network.

Description

Technical field [0001] The invention relates to a directional wireless charger deployment method used in a multi-hop rechargeable sensor network, and belongs to the field of the Internet of Things wireless rechargeable sensor network. Background technique [0002] A wireless sensor network (WSN) is usually composed of a large number of sensor nodes, limited by the size and cost of the sensor nodes, and is usually powered by batteries with very limited energy, which becomes the key to restricting the performance of the sensor network. [0003] In recent years, the development and progress of wireless charging technology (WPT) has provided practical solutions for the energy supplement of WSN. A sensor network that can be charged by a wireless charger is called a wireless rechargeable sensor network (WRSN). A major feature of this network is that the life of the network is no longer restricted by battery life. The wireless charger can provide continuous stability for the sensor networ...

Claims

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Application Information

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IPC IPC(8): H04W52/46H04W4/38H04W16/18H04B5/00
CPCH04W52/46H04W4/38H04W16/18H04B5/79
Inventor 冯勇胡尧
Owner KUNMING UNIV OF SCI & TECH
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