An IoT-LoRa System for Tracking a Patient with a Mental Disorder: Correlation between Battery Capacity and Speed of Movement

Nugraha, Aswin Tresna; Wibowo, R.A.; Suryanegara, Muhammad; Hayati, Nur

doi:10.1109/iccce.2018.8539316

Cited by 21 publications

(9 citation statements)

References 6 publications

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“…Helmet-UAV off-body links for SaR [13], [14] Terrestrial links for mountain SaR [8] Localization and tracking [15] Emergency communications [9] Remote health monitoring [16] Extend the SMS coverage to unconnected areas [10] Human activity recognition [17] Industrial monitoring [11] UAV communications for swarm configurations [18] Wireless underground sensor networks [12] Recovery of incapacitated UAVs [19], [20] Smart cities…”

Section: This Workmentioning

confidence: 99%

Numerical and Experimental Characterization of LoRa-based Helmet-to-UAV links on Flat Lands

Bianco,

Mejia-Aguilar,

Marrocco

2022

Preprint

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The use of the LoRa communication protocol in a new generation of transceivers is attractive for search and rescue (SaR) procedures because they can operate in harsh environments covering vast areas while maintaining a low power consumption. The possibility of wearing helmets equipped with LoRa-radios and installing LoRa transceivers in unmanned aerial vehicles (UAVs) will accelerate the localization of the targets, probably unconscious. In this paper, the achievable communication ranges of such links are theoretically and experimentally evaluated by considering the possible positions of the helmet wearer (standing or lying) on a flat field, representing a simple SaR scenario. Simulations and experimental tests demonstrated that, for the standing position, the ground-bounce multi-path produces strong fluctuations of the received power versus the Tx-Rx distances. Such fluctuations can be kept confined within 100 m from the target by lowering the UAV altitude. Instead, for a more critical lying position, the received power profile is monotonic and nearly insensitive to the posture. For all the considered cases, the signal emitted by the body-worn transceiver can be exploited to localize the helmet wearer based on its strength, and it is theoretically detectable by the UAV radio up to 5 km on flat terrain.

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Section: This Workmentioning

confidence: 99%

Numerical and Experimental Characterization of LoRa-based Helmet-to-UAV links on Flat Lands

Bianco,

Mejia-Aguilar,

Marrocco

2022

Preprint

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“…Sekali LoRa mengirimkan status lock maka gateway akan mengirimkan data sekali lagi dan setelah itu tidak terjadi lagi uplink hingga status bersifat unlock. Skema pengiriman data ini sangat memungkinkan diterapkan pada pengiriman data objek bergerak [8].…”

Section: Perancangan Sistemunclassified

Efisiensi Daya Pada Smartlock Bike-Sharing Berbasis LoRaWAN Dengan Metode GPS Duty Cycle

Nugroho¹,

Ashari

2021

Indonesian J. Electron. Instrum. Syst.

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Bike-sharing or commonly called Public-Use Bycycle (PUB), Bycycle Transit, or Smartbike is a short-term bicycle rental system that allows users to borrow bikes from a self-serve bike-sharing station to a point. Due to technological advances, the bike-sharing system that was once simple, now also utilizes technology in its operations. The modern bike-sharing system is equipped with IoT and GPS technology that is useful for sending data on the actual location of the bicycle, bicycle lock conditions, or even for M2M communication with other stations or bikes. However, this data transmission can cause the battery to run out quickly because of frequent sending and using GSM which requires a large enough power that is 200 mA when sending data and 80 mA when receiving, so that an alternative solution is needed to be able to save power. Therefore, the GPS Duty cycle is used as a method to increase power efficiency on the smartlock. In addition to using the GPS Duty cycle, this study also uses LoRa as a data delivery medium which has lower power usage compared to GSM technology. The results of this study are the duty-cycle algorithm can increase the efficiency of power usage up to 59% when compared to smartlocks that do not use the duty-cycle algorithm. It was also found that LoRa succeeded in sending data up to a distance of 750 meters with a successful delivery of 39.3 percent

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“…Table 7 presents an overview of the type of coverage for each subcategory of smart city applications. On the basis of our quality assessment, healthcare applications consider a fixed communication between a diagnostic system and a base station, but there are also some applications, e.g., those focused on patient follow-up, which require signal quality during communication when the objects are in movement (the speed of a patient can be in the ranges of 1-3 km/h, 5-8 km/h, and 1-30 km/h) [58]. In the case of traffic control or transportation applications, the monitoring of streetlight systems requires communication among multiple nodes located within a short range.…”

Section: Coverage Of Lora In Iot Applicationsmentioning

confidence: 99%

A Comprehensive Study of the Use of LoRa in the Development of Smart Cities

Andrade

Yoo

2019

Applied Sciences

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The New Urban Agenda (Agenda 2030) adopted at the United Nations Conference related to Sustainable Urban Development (Habitat III) in the year 2016 has the goal of prompting cities to achieve the identified Sustainable Development Goals by the year 2030. In this context, cities can experiment strategies of circular economy for the optimization of resources, waste reduction, reuse, and recycling. The data generated by the components of an Internet of Things (IoT) ecosystem can contribute in two relevant ways to a smart city model: (1) by the generation of a circular economy and (2) by the creation of intelligence to improve the decision-making processes by citizens or city managers. In this context, it is in our interest to understand the most relevant axes of the research related to IoT, particularly those based on the LoRa technology. LoRa has attracted the interest of researchers because it is an open standard and contributes to the development of sustainable smart cities, since they are linked to the concepts of a circular economy. Additionally, the intention of this work is to identify the technological or practical barriers that hamper the development of solutions, find possible future trends that could exist in the context of smart cities and IoT, and understand how they could be exploited by the industry and academy.

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An IoT-LoRa System for Tracking a Patient with a Mental Disorder: Correlation between Battery Capacity and Speed of Movement

Cited by 21 publications

References 6 publications

Numerical and Experimental Characterization of LoRa-based Helmet-to-UAV links on Flat Lands

Numerical and Experimental Characterization of LoRa-based Helmet-to-UAV links on Flat Lands

Efisiensi Daya Pada Smartlock Bike-Sharing Berbasis LoRaWAN Dengan Metode GPS Duty Cycle

A Comprehensive Study of the Use of LoRa in the Development of Smart Cities

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