Holographic localization of passive UHF RFID transponders

Miesen, Robert; Kirsch, Fabian; Vossiek, Martin

doi:10.1109/rfid.2011.5764633

Cited by 103 publications

(31 citation statements)

References 15 publications

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“…International Journal of Distributed Sensor Networks Then, RFID-based localization is incorporating with SAR 24 in recent years to accurately locate stationary tag with a known trajectory of a reader antenna. 25 This method is called synthetic aperture RFID localization, and the known trajectory is the synthetic aperture. In contrast, a mobile RFID tag with a known trajectory is located based on the inverse synthetic aperture RFID in one dimension, 26 two dimensions, 27 and three dimensions.…”

Section: Related Workmentioning

confidence: 99%

Passive radio frequency identification sorting for dense objects on high-speed conveyor belts

Zhao

Zhang

2017

International Journal of Distributed Sensor Networks

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In many logistics applications, densely placed objects on high-speed conveyor belts are attached with passive tags for automatic identification and sorting to work more efficiently. Traditional localization or sorting methods cannot effectively work in such scenarios due to complex environments. In this article, we propose a new passive radio frequency identification sorting system for dense mobile tags on high-speed conveyor belts by utilizing the output phase. At first, a relative motion model is utilized to get the zero point time when the object passes the radio frequency identification portal. Then, the coarse-grained time and the corresponding speed of the conveyor belt are obtained by the phase curve fitting. Finally, the inverse synthetic aperture radio frequency identification is used to get the fine-grained zero point time, which is realized based on the holographic image reconstruction. And the particle filter is utilized to get a significant reduction of computational burden. The proposed method is implemented with commercial-off-the-shelf devices, and the evaluation results in various scenarios show our system can achieve an average accuracy of 97% with the tag density of 10/m and at a speed of 4 m/s.

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Section: Related Workmentioning

confidence: 99%

Passive radio frequency identification sorting for dense objects on high-speed conveyor belts

Zhao

Zhang

2017

International Journal of Distributed Sensor Networks

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“…The accuracy of the presented systems lies at 30-80 cm. An excellent technique for positioning passive UHF tags is described in [14], using holographic localization. The presented accuracy lies at around 20 cm, it is however rather time consuming and requires high computational capacities.…”

Section: State Of the Artmentioning

confidence: 99%

Position Tracking for Passive UHF RFID Tags with the Aid of a Scanned Array

Bouzakis

Overmeyer

2013

Int J Wireless Inf Networks

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Thanks to the proliferation of radio frequency identification systems (RFID), applications have emerged concerning positioning techniques for inexpensive passive RFID tags. The most accurate approaches for tracking the tag's position, deliver precision in the order of 20 cm over a range of a few meters and require moving parts in a predefined pattern (mechanical antenna steering), which limits their application. Herein, we introduce an RFID tag positioning system that utilizes an active electronically-steered array, based on the principles of modern radar systems. We thoroughly examine and present the main attributes of the system with the aid of an finite element method simulation model and investigate the system performance with far-field tests. The demonstrated positioning precision of 1.5°, which translates to under 1 cm laterally for a range of a few meters can be helpful in applications like mobile robot localization and the automated handling of packaged goods.

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“…One notable exception was demonstrated by Meisen et al, which moves the reader antenna along a known trajectory, while repeatedly measures a static tags [5]. In a sense this method (like [2]) trades accuracy for acquisition time.…”

Section: A Prior Work On Rfid Tag Localizationmentioning

confidence: 99%

Optical localization of passive UHF RFID tags with integrated LEDs

Sample

Macomber

Jiang

et al. 2012

2012 IEEE International Conference on RFID (RFID)

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Abstract-The ability to accurately localize passive UHF RFID tags in uncontrolled and unstructured environments is limited by multi-path propagation. Therefore, in order to increase the spatial resolution of RF based localization methods we propose to combine them with additional sensing capabilities. In this work we enhance passive UHF RFID tags with LEDs, using the Wireless Identification and Sensing Platform (WISP). This allows both humans and computer systems (with cameras) to optically locate tagged items with millimeter accuracy. In order to show the effectiveness of this approach, a PR2 robot is equipped with an EPC Gen2 RFID reader and camera. Using the RFID reader alone, the PR2 is able to identify and coarsely locate tagged items in an unstructured environment. Once the robot has navigated to the vicinity of the LED-enhanced passive RFID tags, it uses the optical location method to precisely locate and autonomously grasp tagged items from a table.

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Holographic localization of passive UHF RFID transponders

Cited by 103 publications

References 15 publications

Passive radio frequency identification sorting for dense objects on high-speed conveyor belts

Passive radio frequency identification sorting for dense objects on high-speed conveyor belts

Position Tracking for Passive UHF RFID Tags with the Aid of a Scanned Array

Optical localization of passive UHF RFID tags with integrated LEDs

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