Optimal deployment method for three-dimensional space reader-writer antenna with cuboid obstacle

Abstract

The invention discloses an optimal deployment method for a three-dimensional space reader-writer antenna with a cuboid obstacle. Firstly, a cuboid obstacle RFID antenna deployment optimization environment model is established, an improved reader-writer antenna perception model is adopted, constraint conditions that a tag can be perceived by a reader-writer antenna are given, and whether a cuboid obstacle exists between the reader-writer antenna and the tag or not is judged. The RFID field working environment is simulated by taking the coverage rate, the interference degree and the load balancefunction as target functions, an optimal solution and a fitness value of an optimal deployment scheme of the reader-writer antenna are obtained by applying an improved firefly algorithm, and the deployment and optimization of the reader-writer antenna is completed. According to the RFID reader-writer antenna deployment method, the reader-writer antenna deployment problem of the RFID environment that the labels exist between cuboid obstacles or materials are obstacles is solved, optimal reader-writer antenna deployment is achieved, and the reading rate of the reader-writer antenna to the labels reaches the highest.

Description

technical field [0001] The invention relates to the field of optimal deployment of RFID reader antennas, in particular to a method for rapidly deploying and optimizing the position and direction of reader antennas in a three-dimensional space with cuboid obstacles. Background technique [0002] RFID technology is one of the important cores of the perception layer of the Internet of Things. It not only promotes the rapid development of the Internet of Things, which is another information industry revolution after computers, Internet of Things and mobile communications, but also promotes the application and development of RFID technology. It involves all aspects of social life such as logistics, anti-counterfeiting, retail, food, manufacturing, automobiles, clothing, transportation, medical care, identification, military, etc., and is widely used. An RFID system mainly includes four components: a host system, an RFID reader, an antenna, and an RFID tag. The RFID reader antenn...

AI Technical Summary

Problems solved by technology

Under the condition that the RFID antenna is optimally deployed without obstacles, that is, the working environment of RFID is ideal, considering the coverage, the interference degree between the reader antennas, and the economic cost, the optimal deployment model of the RFID antenna is established, and the particle swarm Algorithms, ant colony algorithms, etc. solve the problem of optimal deployment of RFID antennas; the working environment for optimal deployment of RFID antennas often has objects such as metals that are not easily penetrated by RFID, that is, obstacles, but currently there are relatively few optimal deployments of RFID antennas for obstacles. The current method is to regard obstacles as typical shapes such as rectangles or cuboids.

When considerin

Images