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A Genetic Algorithm-Based Arrangement Method for Radio Frequency Energy Sources

A technology of radio frequency energy and arrangement method, which is applied in the field of radio frequency energy source arrangement based on genetic algorithm, can solve the problem of low radio frequency energy rate and achieve the effect of large capture power

Active Publication Date: 2021-08-03
ZHEJIANG UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0003] However, at this stage, the rate at which RF energy capture sensor nodes capture the RF energy in the environment is still very low, which is one of the bottlenecks for the wide application of this new type of network.

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  • A Genetic Algorithm-Based Arrangement Method for Radio Frequency Energy Sources
  • A Genetic Algorithm-Based Arrangement Method for Radio Frequency Energy Sources
  • A Genetic Algorithm-Based Arrangement Method for Radio Frequency Energy Sources

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Embodiment Construction

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] refer to figure 1 , a method for arranging a radio frequency energy source based on a genetic algorithm, comprising the following steps:

[0027] Step 1. For i=1,2,...,M and j=1,2,...,N, where M is the number of nodes capturing RF energy, and N is the number of candidate placement positions of the RF energy source, calculate the i-th The power p captured by the nodes from the energy source placed at the jth candidate placement position i,j :

[0028]

[0029] where η is the rectification efficiency, G s Represents the transmit gain of the energy source antenna, G r Represents the node antenna receiving gain, L p represents the polarization loss, λ represents the wavelength, d i,j is the distance between the i-th node and the j-th candidate arrangement position, and P is the energy transmission power of the energy source;

[0030] Step 2. Chromosome popul...

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Abstract

A method for arranging radio frequency energy sources based on a genetic algorithm. Aiming at a given node position, a candidate arrangement position of a radio frequency energy source, and the number of energy sources to be arranged, a genetic algorithm is used to select the arrangement position of the energy source. In the algorithm, the chromosome The fitness value is defined as the total effective energy capture power of a node. Through iterative execution of operations such as chromosome selection, crossover, and mutation, the selection of a layout position with a higher total effective energy capture power is finally obtained. The method of the invention realizes reasonable selection of the arrangement position of the radio frequency energy source, and can achieve a larger total effective energy capture power.

Description

technical field [0001] The invention relates to a method for arranging a radio frequency energy source based on a genetic algorithm, which is suitable for a wireless sensor network in which sensor nodes can capture radio frequency energy. Background technique [0002] As a ubiquitous, green and sustainable energy source, electromagnetic waves have been paid more and more attention by academia and industry. Radio frequency energy capture wireless sensor network is a new type of network that captures the radio frequency energy in the environment and converts it into electrical energy to support the continuous operation of nodes. [0003] However, at this stage, the rate of RF energy capture sensor nodes capturing RF energy in the environment is still very low, which is one of the bottlenecks for the wide application of this type of new network. To overcome this weakness, deploying dedicated RF energy sources to power nodes is a feasible and effective method. [0004] Because...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W84/18G06N3/12
CPCG06N3/126H04W28/0215H04W28/0226H04W84/18Y02D30/70
Inventor 池凯凯许星原胡萍郑可琛
Owner ZHEJIANG UNIV OF TECH