An RFID antenna deployment system and method for real-time monitoring of warehouses

Abstract

The invention discloses an RFID antenna deployment system and method for real-time monitoring of warehouses. The system includes arranging shelves in the warehouse, RFID readers, RFID antennas, photoelectric sensors, GPIO Box conversion control boxes, and wireless routers. RFID The antenna is deployed on the upper side of each compartment frame of the shelf at a set inclination angle β; the RFID antenna is connected to the RFID reader through an RFID cable. During the test, the products with RFID tags are placed on each compartment of the shelf. On the shelf in the middle of the layer frame, the RFID reader recognizes the RFID tag pasted on the product through the RFID antenna; calculates the deployment function value of the RFID antenna according to the deployment function of the RFID antenna, and calculates the RFID antenna in each compartment frame Adjust the height, position, and angle of the location to obtain the optimal recognition energy threshold, and use this energy threshold as the basis for judging whether the RFID antenna is the optimal deployment location. The method realizes the optimal deployment of the RFID antenna for real-time monitoring of the warehouse, and reduces the signal interference of adjacent warehouse locations.

Description

technical field [0001] The invention relates to the field of electronic information technology, in particular to an RFID antenna deployment system and method for real-time monitoring of warehouses. Background technique [0002] With the rapid development of information science, RFID (Radio Frequency Identification) technology in the Internet of Things, that is, radio frequency identification technology, has been widely used in many fields such as manufacturing supply chain logistics, manufacturing and traffic management. Since different types of products have different placement forms and quantities when they pass through the RFID identification range, and the electromagnetic environment and space around the gate where the RFID antenna is deployed are also different, it is difficult to find an optimal RFID antenna deployment method, the optimal RFID antenna The deployed application environment requires comprehensive optimization of the RFID reader antenna height, antenna pos...

AI Technical Summary

Problems solved by technology

In the paper "Optimized deployment of RFID network based on hybrid particle swarms" published by Liu Kuai et al. in the fourth issue of "Computer Application Research" in 2012, this paper introduces the optimal deployment of RFID antennas in the two-dimensional moment plane. A hybrid particle swarm optimization algorithm is used to optimize the deployment position of the reader, so that the reader can read multiple tag information while reducing the conflict problem, but this deployment method does not consider the impact of the three-dimensional space environment on the read-write recognition performance of the RFID antenna; Liu Yu et al. in the invention patent CN 101872885B "a system and method for rapid deployment of RFID antennas". Antennas, comparing the recognition performance of one or more RFID antenna parameter combinations on RFID tags pasted on commodities in the application field environment, however, this method does not consider the index constraints of RFID antenna deployment height, position, and angle in RFID antenna deployment , the maximum coverage of the RFID antenna to the area to be monitored in the warehouse cannot be achieved, and the overlapping coverage of the RF signal of the RFID reader will also cause conflicts between the RFID reader and the RFID tag, and the optimal deployment of the RFID antenna in the real-time monitoring of the warehouse cannot be realized.

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