UWB Positioning for Industrial Applications: the Galvanic Plating Case Study

Martinelli, Alessio; Jayousi, Sara; Caputo, Stefano; Mucchi, Lorenzo

doi:10.1109/ipin.2019.8911746

Cited by 14 publications

(5 citation statements)

References 14 publications

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“…For simplified scenarios, studies from the literature were performed in small controlled scenarios under optimal radio conditions. This is the case in [22][23][24][25][26][27], which evaluated UWB systems in relatively small, obstacle-free environments with full LOS conditions to all anchors. These studies represent the best case scenarios for UWB positioning in an industrial environment, and achieved accuracies ranging from 1 cm to 40 cm.…”

Section: Literature Reviewmentioning

confidence: 99%

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Performance Evaluation of a UWB Positioning System Applied to Static and Mobile Use Cases in Industrial Scenarios

et al. 2022

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Indoor positioning systems are essential in the industrial domain for optimized production and safe operation of mobile elements, such as mobile robots, especially in the presence of static machinery and human operators. In this paper, we assess the performance of a commercial UWB radio-based positioning system deployed in a realistic industrial scenario, considering both static and mobile use cases. Our goal is to characterize the accuracy of this system in the context of industrial use cases and applications. For the static case, an extensive analysis was presented based on measurements performed at 72 measurement positions at 3 different heights (above, at similar a level to, and below the average clutter level) in different industrial clutter conditions (open and cluttered spaces). The extensive analysis in the mobile case considered several runs of a route covered by an autonomous mobile robot equipped with multiple tags in different positions. The results indicate that a similar degree of accuracy with a median 2D positioning error smaller than 20 cm is possible in both static and mobile conditions with an optimized anchor deployment. The paper provides a complete statistical characterization of the system’s accuracy and addresses the multiple deployment trade-offs and system dynamics observed for the different configurations.

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Section: Literature Reviewmentioning

confidence: 99%

“…Ref. [24] evaluated a small 16 m² environment using four anchors, achieving 2D accuracies in the 2-38 cm range, dropping to 1-3 cm when a person was positioned right next to a tag. Similar 2D accuracies ranging from 5-22 cm were reported in [25,26] for empty rooms measuring 60-70 m² with four anchors.…”

Section: Literature Reviewmentioning

confidence: 99%

Performance Evaluation of a UWB Positioning System Applied to Static and Mobile Use Cases in Industrial Scenarios

et al. 2022

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“…The ranging based on RTT has generally higher accuracy with respect to the RSSI-based Fingerprint method with a positioning resolution of 2–3 m. The positioning accuracy also depends on the technology used for RTT estimation. RTT computed using UWB signals is commonly more accurate with respect to the RTT computed using narrowband signals [ 22 , 23 , 24 ].…”

Section: Introduction Of Indoor Positioning System Methodsmentioning

confidence: 99%

High-Precision RTT-Based Indoor Positioning System Using RCDN and RPN

Seong

Lee

Kim

et al. 2021

Sensors

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Wi-Fi round-trip timing (RTT) was applied to indoor positioning systems based on distance estimation. RTT has a higher reception instability than the received signal strength indicator (RSSI)-based fingerprint in non-line-of-sight (NLOS) environments with many obstacles, resulting in large positioning errors due to multipath fading. To solve these problems, in this paper, we propose high-precision RTT-based indoor positioning system using an RTT compensation distance network (RCDN) and a region proposal network (RPN). The proposed method consists of a CNN-based RCDN for improving the prediction accuracy and learning rate of the received distances and a recurrent neural network-based RPN for real-time positioning, implemented in an end-to-end manner. The proposed RCDN collects and corrects a stable and reliable distance prediction value from each RTT transmitter by applying a scanning step to increase the reception rate of the TOF-based RTT with unstable reception. In addition, the user location is derived using the fingerprint-based location determination method through the RPN in which division processing is applied to the distances of the RTT corrected in the RCDN using the characteristics of the fast-sampling period.

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“…Using another UWB-based commercial technology rather than Pozyx, the authors of [19] evaluate the TimeDomain PulsON440 in a heavy industrial galvanic environment for plating fashion accessories with precious metals. The study mentions that such a system claims an accuracy up to 2 cm.…”

Section: Related Work and State Of The Art (Sota)mentioning

confidence: 99%

Evaluation and Comparison of Ultrasonic and UWB Technology for Indoor Localization in an Industrial Environment

Crețu-Sîrcu

Schiøler

Cederholm

et al. 2022

Sensors

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Evaluations of different technologies and solutions for indoor localization exist but only a few are aimed at the industrial context. In this paper, we compare and analyze two prominent solutions based on Ultra Wide Band Radio (Pozyx) and Ultrasound (GoT), both installed in an industrial manufacturing laboratory. The comparison comprises a static and a dynamic case. The static case evaluates average localization errors over 90 s intervals for 100 ground-truth points at three different heights, corresponding to different relevant objects in an industrial environment: mobile robots, pallets, forklifts and worker helmets. The average error obtained across the laboratory is similar for both systems and is between 0.3 m and 0.6 m, with higher errors for low altitudes. The dynamic case is performed with a mobile robot travelling with an average speed of 0.5 m/s at a height of 0.3 m. In this case, low frequency error components are filtered out to focus the comparison on dynamic errors. Average dynamic errors are within 0.3–0.4 m for Pozyx and within 0.1–0.2 m for GoT. Results show an acceptable accuracy required for tracking people or objects and could serve as a guideline for the least achievable accuracy when applied for mobile robotics in conjunction with other elements of a robotic navigation stack.

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UWB Positioning for Industrial Applications: the Galvanic Plating Case Study

Cited by 14 publications

References 14 publications

Performance Evaluation of a UWB Positioning System Applied to Static and Mobile Use Cases in Industrial Scenarios

Performance Evaluation of a UWB Positioning System Applied to Static and Mobile Use Cases in Industrial Scenarios

High-Precision RTT-Based Indoor Positioning System Using RCDN and RPN

Evaluation and Comparison of Ultrasonic and UWB Technology for Indoor Localization in an Industrial Environment

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