RFID (Radio Frequency Identification) antenna deployment system and method used for real-time monitoring of warehouse

Abstract

The invention discloses a RFID (Radio Frequency Identification) antenna deployment system and method used for the real-time monitoring of a warehouse. The system comprises a goods shelf arranged in the warehouse, RFID reader-writers, RFID antennae, photoelectric sensors, a GPIO (General Purpose Input / Output) box switching control cabinet and a wireless router, wherein the RFID antennae are arranged on the upper side surface of each interlayer frame of the goods shelf at a set dig angle [Beta], and the RFID antennae are connected with the RFID reader-writers through RFID cables. During a test, a product stuck with a RFID label is arranged on a shelf in the middle of each interlayer frame of the goods shelf, and the RFID reader-writers identify the RFID label stuck on the product through the RFID antennae; and according to the deployment functions of the RFID antennae, the deployment function value of each RFID antenna is calculated, the height, the position and the angle of each RFID antenna in each interlayer frame are regulated to obtain an optimal identification energy threshold value, and the energy threshold value is taken as a basis to judge whether each RFID antenna is deployed on an optimal position or not. The RFID antenna optimization deployment of the real-time monitoring of the warehouse is realized, and the signal interference of an adjacent storage location is lowered.

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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