Architecture for Multi-Technology Real-Time Location Systems

Rodas, Javier; Barral, Valentín; Escudero, Carlos J.

doi:10.3390/s130202220

Cited by 10 publications

(8 citation statements)

References 28 publications

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“…Rodas et al also acknowledge the benefit of multi-RAT for localization [6]. In their research, they propose an architecture that combines data from multiple RATs for localization purposes.…”

Section: Multi-rat Communication and Localizationmentioning

confidence: 99%

A Multimodal Localization Framework Design for IoT Applications

Aernouts

Lemić

Moons

et al. 2020

Sensors

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Multiple Radio Access Technology (multi-RAT) communication with Low Power Wide Area Networks (LPWAN) significantly increases the flexibility of Internet of Things (IoT) applications. Location-based services that build upon such a multimodal communication architecture are able to switch to an optimal localization method depending on the constraints of the active wireless technology. Furthermore, the resulting location estimate can aid location-based handover mechanisms to reduce the energy consumption of a multi-RAT IoT device. In this research, we present our design of a multimodal localization framework and illustrate the benefit of such a framework with two IoT use case examples. For the first use case, valuable artwork is tracked during transportation to a museum. In the second use case, we monitor the usage and location of large construction tools. Finally, we propose how our localization framework can be improved to deal with implementation challenges and to reduce location estimation errors.

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Section: Multi-rat Communication and Localizationmentioning

confidence: 99%

A Multimodal Localization Framework Design for IoT Applications

Aernouts

Lemić

Moons

et al. 2020

Sensors

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“…Furthermore, Bluetooth easily sends various sensor signals integrally. ZigBee is flexible and expandable and would be favorable for location information since the data size is relatively small compared to audio and video files [16]. …”

Section: Development Of the Rtl Systemmentioning

confidence: 99%

Real-Time Location Tracking of Multiple Construction Laborers

Lim¹,

Song

Lee

2016

Sensors

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A real-time location (RTL) system was developed to improve safety for multiple laborers in confined construction sites. The RTL system can monitor the location and movement of multiple laborers in real time. A portable RTL system with a low-battery mode was developed to accommodate various constraints in the construction site. A conventional RTL system that uses radio signal strength indicators (RSSIs) has high error, so an accelerometer with Bluetooth Low Energy (BLE) was added, and a calculation process is suggested. Field tests were performed for validation in underground construction and bridge overlay sites. The results show that the accelerometer and BLE can be used as effective sensors to detect the movement of laborers. When the sensor is fixed, the average error ranges 0.2–0.22 m, and when the sensor is moving, the average error ranges 0.1–0.47 m.

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“…[20] proposed a sensor fusion framework for combining WiFi, PDR and landmarks for indoor localization. [22] designed a real time location system architecture using multiple sensor technologies. To estimate robot position and orientation, [26] used a sensor system consisting of static ultrasonic beacons and one mobile receiver.…”

Section: Sensor Based Positioning Systemmentioning

confidence: 99%

“…Nonetheless, LBS are an important for outdoor as well as indoor Ubiquitous environments. For indoor location based service, the LBS needs to provide the accurate locations of objects within a small area [4,21,22,25]. However, it is presently impossible to provide accurate location estimation via indoor LBS because of the inaccuracy of the locations that are provided based on GPS [7,18,19].…”

Section: Introductionmentioning

confidence: 99%

RFID Based Indoor Positioning System Using Event Filtering

Bok¹,

Yoo²

2017

Journal of Electrical Engineering and Technology

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-Recently, location systems using RFID technology have been studied in indoor environments. However, the existing techniques require high computational cost to compute the location of a moving object because they compare the location proximity of all reference tags and objects. In this paper, we propose an RFID based location positioning scheme using event filtering, which reduces the computation cost of calculating the locations of moving objects while maintaining the accuracy of location estimation. In addition, we propose an incremental location update policy to reduce the location update cost for moving objects. We also compare the proposed scheme with one of the localization schemes, LANDMARC using a performance evaluation. As a result, the proposed scheme outperforms LANDMARC in terms of the computational cost of location estimation. The proposed scheme also reduces the cost of location update by using the RFID-based update policy.

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Architecture for Multi-Technology Real-Time Location Systems

Cited by 10 publications

References 28 publications

A Multimodal Localization Framework Design for IoT Applications

A Multimodal Localization Framework Design for IoT Applications

Real-Time Location Tracking of Multiple Construction Laborers

RFID Based Indoor Positioning System Using Event Filtering

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