Method for optimal deployment of reader antennas of ultrahigh-frequency radio-frequency identification positioning system based on improved chicken swarm optimization algorithm

Abstract

A method for optimal deployment of reader antennas of an ultrahigh-frequency radio-frequency identification positioning system based on an improved chicken swarm optimization algorithm specifically comprises the following steps: determining the evaluation indexes of an optimization target for a deployment problem of multiple target reader positioning antennas; establishing an optimization objective function; determining the constraint conditions in the process of deployment optimization; designing an improved chicken swarm optimization algorithm; and carrying out iterative operation, outputting a global optimal fitness value and an optimal solution, getting a solution satisfying the need of ultrahigh-frequency radio-frequency identification positioning, and carrying out final scheduling on reader antennas. On the premise of meeting the reader antenna number and space constraint conditions, the geometric accuracy of positioning, the coverage of positioning and the communication interference are taken as optimization objectives, and the optimization problem is solved using the improved chicken swarm optimization algorithm. Therefore, the quality of the optimal solution is improved greatly while the convergence speed of the algorithm is ensured.

Description

technical field [0001] The invention belongs to the technical field of mobile wireless communication, and relates to a reader antenna optimization deployment scheme of an ultra-high frequency radio frequency identification positioning system based on an improved chicken flock algorithm. Background technique [0002] With the wide application of environment perception in indoor navigation, logistics management, control access, real-time monitoring and other fields, research on positioning technology based on Ultra High Frequency Radio Frequency Identification (UHF RFID) has attracted much attention. Most of the reader antennas in the existing UHF RFID positioning system use microstrip antennas, which are mainly composed of three parts: the bottom conductor ground plate, the middle dielectric substrate and the conductive sheet attached to it. The space electromagnetic radiation model of the reader antenna is composed of a main lobe and a side lobe. The main lobe is its main pr...

AI Technical Summary

Problems solved by technology

The present invention can effectively solve the problems of low label positioning performance, low algorithm convergence accuracy and slow convergence speed existing in the prior art when solving multi-antenna parameter optimization deployment problems

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