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Indoor visible light communication LED array layout optimization method based on genetic algorithm

A technology of LED array and visible light communication, which is applied in the field of LED array layout optimization based on genetic algorithm, and can solve the problem of uneven receiving power on the receiving plane.

Active Publication Date: 2016-06-01
重庆信科设计有限公司
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Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a genetic algorithm-based indoor VLC LED array layout optim

Method used

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  • Indoor visible light communication LED array layout optimization method based on genetic algorithm
  • Indoor visible light communication LED array layout optimization method based on genetic algorithm
  • Indoor visible light communication LED array layout optimization method based on genetic algorithm

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Embodiment Construction

[0051] Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail:

[0052] figure 2 As a typical visible light indoor communication system, figure 1 It is a flowchart of an LED array layout optimization method based on a genetic algorithm. As shown in the figure, the present invention provides an indoor visible light communication LED array layout optimization method based on a genetic algorithm. The algorithm includes the following steps:

[0053] (1) A typical indoor visible light communication system such as figure 2 As shown, the length information L of the room is 5 meters, the width information W is 5 meters, the height is 3 meters, and the receiving plane is 0.85 meters high. according to figure 2 The construction coordinate axes shown are marked as x-axis along the length direction and marked as y-axis along the width direction.

[0054] (2) Using the information in step (1) to construct chromosomes, eac...

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Abstract

The invention relates to an indoor visible light communication LED array layout optimization method based on a genetic algorithm. The method comprises following steps: 1, constructing chromosomes according to the number of LED arrays and the length and the width of a room; 2, creating an initial population by using the chromosomes obtained in the previous step; 3, calculating the fitness value of each individual in the population, judging whether an algorithm ending condition is satisfied; 4, carrying out selection, intersection and mutation operations to each individual in the population, thus generating a new population; and 5, analyzing the optimized LED array layout according to the optimum individuals obtained by the genetic algorithm. According to the algorithm of the invention, the problem that the receiving powers received on the receiving plane in the existing LED layout are distributed unevenly can be solved; the optimized LED array layout enables the receiving powers on the receiving plane to be distributed evenly; and the reliability problem of the LED communication is solved.

Description

technical field [0001] The invention belongs to the technical field of indoor visible light communication, and relates to an LED array layout optimization method based on a genetic algorithm in visible light communication. Background technique [0002] Visible light communication technology (VLC, Visible Light Communication) has gradually become a popular candidate technology for short-range wireless communication technology in the future due to its good confidentiality, rich spectrum resources, and harmlessness to the human body. In an indoor VLC system, due to factors such as room size, signal multipath transmission, and object surface reflection characteristics, the received optical power at different receiving positions on the communication plane will vary significantly, which seriously restricts the communication performance of the VLC system. In an indoor environment, how to obtain consistent power and lighting distribution at all receiving locations is of great signif...

Claims

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Application Information

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IPC IPC(8): H04B10/116H04B10/114G06N3/12
CPCG06N3/126H04B10/114H04B10/116
Inventor 刘焕淋代洪跃夏培杰陈勇刘保林
Owner 重庆信科设计有限公司
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