Radio frequency identification target positioning method based on unmanned aerial vehicle

Abstract

A radio frequency identification target positioning method based on an unmanned aerial vehicle comprises the steps: enabling an unmanned aerial vehicle to carry a relay module to enter an environment,and carrying out the large-range label identification and information collection through the function that the relay module carries out secondary forwarding on signals; by utilizing the influence ofthe unmanned aerial vehicle body on the label signal strength, collecting the change condition of the signal strength, obtaining a label group which is mainly influenced and changed according to the weighted average value, and determining the position of the target label. According to the target positioning method, the maneuvering characteristics and the automatic cruise function of the unmanned aerial vehicle are utilized, and the relay module is carried, so information capture and target positioning can be completed under the conditions of large scale and complex environment, the high efficiency of data capture and the accuracy of target positioning are ensured, the error amount is reduced, the workload is greatly reduced, and the working process is simplified.

Description

technical field [0001] The invention belongs to the technical field of target positioning based on drones, and in particular relates to a radio frequency identification target positioning method based on drones. Background technique [0002] With the continuous popularization and application of the Internet of Things, the continuous deepening of the concept of smart cities, the continuous development of wireless networks, mobile computing and other technologies, the accuracy and requirements for user location information are also continuously improved, and the Global Positioning System (Global Positioning System, GPS) has been adopted It is widely used in the positioning and tracking of outdoor environments. However, due to the complexity of the indoor environment, satellite signals cannot be effectively perceived. Therefore, indoor positioning technology has gradually become a research hotspot and has been widely proposed and applied. [0003] RFID radio frequency identific...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method of combining UAV and RFID technology. Aiming at the problems of low efficiency of RFID radio frequency scanning, lack of accuracy and the inability of the UAV to carry the antenna array, it is proposed to load the relay on the UAV fuselage. The module forms an automatic RFID reader to act as a mobile scanner to complete target positioning in dangerous spaces such as high altitude and high temperature. The UAV combines the response along the flight path to the position to accurately locate the target and obtain the relevant storage information of the target. , and the information is sent to the ground control station for receiving and processing to ensure the efficiency of data capture and the accuracy of target positioning

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