3D localization of passive UHF RFID transponders using direction of arrival and distance estimation techniques

Ascher, Alois; Lechner, Johannes; Nosovic, Stefan; Eschlwech, Philipp; Biebl, Erwin

doi:10.1109/iaeac.2017.8054239

Cited by 21 publications

(7 citation statements)

References 11 publications

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“…A localization technique has been proposed using combination of wireless sensor network (WSN) and radio frequency identification technology to solve the localization in WSN [3]. UHF RFID transponders and Direction of Arrival (DoA) estimation technique has been used to detect tags localization by filtering out the carrier frequency and the signal is used for estimating the direction of arrival [4]. A localization methods using Phase Different of Arrival (PDoA) has been proposed [5].…”

Section: Related Workmentioning

confidence: 99%

Solving RFID mobile reader path problem with optimization algorithms

Zakaria¹,

Mutalib²,

Abdul-Rahman³

et al. 2019

IJEECS

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Radio Frequency Identification (RFID) is a one of the fastest growing and most beneficial technologies being adopted by businesses today. One of the important issues is localization of items in a warehouse or business premise and to keep track of the said items, it requires devices which are costly to deploy. This is because many readers need to be placed in a search space. In detecting an object, a reader will only report the signal strength of the tag detected. Once the signal strength report is obtained, the system will compute the coordinates of the RFID tags based on each data grouping. In this paper, algorithms using genetic algorithm, particle swarm, ant colony optimization are proposed to achieve the shortest path for an RFID mobile reader, while covering full search area. In comparison, for path optimization, the mobile reader traverses from one node to the next, moving around encountered obstacles in its path. The tag reading process is iterative, in which the reader arrives at its start point at the end of each round. Based on the shortest path, an algorithm that computes the location of items in the search area is used. The simulation results show that the ACO method works more effectively and efficiently compare to others when solving shortest path problems.

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Section: Related Workmentioning

confidence: 99%

Solving RFID mobile reader path problem with optimization algorithms

Zakaria¹,

Mutalib²,

Abdul-Rahman³

et al. 2019

IJEECS

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“…This increase in the possible read range has pushed the demand for localization methods to determine not only that a tag is present, but also where it is currently positioned. Multiple different approaches were evaluated, starting from rudimentary signal strength based methods (Kim et al, 2007) over traditional ranging via frequency modulated continuous-wave (FMCW) radar (Heidrich et al, 2009) to Direction of Arrival (DoA) estimating systems (Azzouzi et al, 2011). DoA estimation can determine the angle from which the tag response signal is impinging on the receiving system.…”

Section: Introductionmentioning

confidence: 99%

“…The evaluation methods can be divided Figure 1. Evaluation of a UHF RFID DoA estimation system in an anechoic chamber (taken from Ascher et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Target simulation for UHF RFID DoA estimation systems

Eschlwech¹,

Biebl²

2019

Adv. Radio Sci.

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Abstract. In this work a new method for the evaluation of UHF RFID Direction of Arrival (DoA) estimation systems is developed and demonstrated. Instead of simulating the system performance or manually measuring it in realistic or ideal environments, a method for the evaluation of DoA systems using received signals produced by a target simulator is proposed. The simulator generates the signals for each channel of the DoA estimator by attenuating and phase shifting the signals of an UHF RFID chip to replicate the signal propagation conditions for a chosen tag distance and arrival angle. This combines the advantages of the simulative approach and real world evaluation: it is fast, reproducible and doesn't require special measurement environments. To facilitate this method, plane and spherical wave signal models for the simulation of RFID targets are derived, multichannel phase-shifting and attenuation hardware for the simulation of such signals is presented and a demonstrative evaluation of a RFID DoA estimation system is performed, replicating evaluation scenarios in non reflective and multipath environments.

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“…The most significant features of the LPDA antennas are: parallel linear dipole elements, possessing different lengths and spacing, directional patterns with linear polarization, and relatively high directivity [18], which helps to enhance the read range and reduce multi-path effects [1, 4]. For example, direction-of-arrival estimation in a directional RFID antenna has been used to improve the RFID positioning performance in a multi-path environment [19, 20]. Considering the location and orientation of tags, which are predetermined in a typical RFID system, directional antennas are better candidates compared with their omnidirectional counterparts [4].…”

Section: Introductionmentioning

confidence: 99%

A novel miniaturized log-periodic dipole array antenna using dynamic scaling factor for RFID application

Gooran

Karimi

Lalbakhsh

2017

Int. J. Microw. Wireless Technol.

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A novel radio frequency identification antenna based on log-periodic dipole array (LPDA) antenna at 5.8 GHz is presented. The antenna design approach consists of two major steps. Firstly, the conventional primitive method is used to design a traditional LPDA antenna. The antenna structure is then miniaturized and its overall performance significantly improved. Dynamic scaling factor along with uniformly separated elements are introduced in this class of antenna, resulting in a 51.5% length reduction. To improve front-to-back (F/B) ratio a symmetrical folding technique is employed, leading to 21.5 dB F/B ratio for the fabricated prototype. An excellent level of input impedance matching (S11 = −28 dB) is achieved using a well-designed feeding system through a proximity coupling technique. The measured gain of the fabricated prototype is 6.2 dBi, and the overall dimension of the antenna substrate is only 30 × 45 mm2 (0.58λ0 × 0.87λ0).

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3D localization of passive UHF RFID transponders using direction of arrival and distance estimation techniques

Cited by 21 publications

References 11 publications

Solving RFID mobile reader path problem with optimization algorithms

Solving RFID mobile reader path problem with optimization algorithms

Target simulation for UHF RFID DoA estimation systems

A novel miniaturized log-periodic dipole array antenna using dynamic scaling factor for RFID application

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