Positioning precision analysis of passive phased array radar localization for construction safety monitoring in a non-line-of-sight environment via heatmap

Zhou, Cheng; Li, Rao; Jiang, Weiguang; Wang, Yu

doi:10.1016/j.measurement.2021.110356

Cited by 4 publications

(5 citation statements)

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“…BLE is another radio frequency-based technology that has recently gained relevance as a safety system [ 14 , 15 , 16 , 18 , 43 , 44 ]. BLE shows advantages such as its low cost and power consumption.…”

Section: State Of the Artmentioning

confidence: 99%

“…It also has a high availability, as most smartphones use this technology. Examples of BLE in construction sites can be found in [ 14 , 15 ], where several sensors were placed in the construction sites of a building and a petrochemical plant, respectively. Both construction sites were full of BLE sensors; in the case of [ 14 ] 39 sensors were placed in a 39 × 27.5 m construction site, and in the case of [ 15 ], 34 sensors in a 2736

site.…”

Section: State Of the Artmentioning

confidence: 99%

“…Examples of BLE in construction sites can be found in [ 14 , 15 ], where several sensors were placed in the construction sites of a building and a petrochemical plant, respectively. Both construction sites were full of BLE sensors; in the case of [ 14 ] 39 sensors were placed in a 39 × 27.5 m construction site, and in the case of [ 15 ], 34 sensors in a 2736

site. The positions of all these sensors must be measured and introduced to a software manually.…”

Section: State Of the Artmentioning

confidence: 99%

“…Moreover, the most important drawback of BLE-based systems is their poor accuracy. Generally, BLE can have positioning errors between 1 m and 10 m [ 15 ].…”

Section: State Of the Artmentioning

confidence: 99%

“…However, these types of solutions may have some drawbacks because of the difficulty of deploying an RTLS [ 11 ] and the dynamic nature of construction environments [ 12 ]. Most safety systems based on RTLS [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ] need to deploy some fixed sensors with known positions around the working environment and define safe and dangerous zones. Some time has to be spent fixing sensors where needed, measuring their positions and introducing the limits of the safe and danger zones to the system.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Untethered Ultra-Wideband-Based Real-Time Locating System for Road-Worker Safety

Ochoa-de-Eribe-Landaberea,

Zamora-Cadenas,

Velez

2024

Sensors

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In order to reduce the accident risk in road construction and maintenance, this paper proposes a novel solution for road-worker safety based on an untethered real-time locating system (RTLS). This system tracks the location of workers in real time using ultra-wideband (UWB) technology and indicates if they are in a predefined danger zone or not, where the predefined safe zone is delimited by safety cones. Unlike previous works that focus on road-worker safety by detecting vehicles that enter into the working zone, our proposal solves the problem of distracted workers leaving the safe zone. This paper presents a simple-to-deploy safety system. Our UWB anchors do not need any cables for powering, synchronisation, or data transfer. The anchors are placed inside safety cones, which are already available in construction sites. Finally, there is no need to manually measure the positions of anchors and introduce them to the system thanks to a novel self-positioning approach. Our proposal, apart from automatically estimating the anchors’ positions, also defines the limits of safe and danger zones. These features notably reduce the deployment time of the proposed safety system. Moreover, measurements show that all the proposed simplifications are obtained with an accuracy of 97%.

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Section: State Of the Artmentioning

confidence: 99%

site.…”

Section: State Of the Artmentioning

confidence: 99%

site. The positions of all these sensors must be measured and introduced to a software manually.…”

Section: State Of the Artmentioning

confidence: 99%

“…Moreover, the most important drawback of BLE-based systems is their poor accuracy. Generally, BLE can have positioning errors between 1 m and 10 m [ 15 ].…”

Section: State Of the Artmentioning

confidence: 99%