Abstract:LoRa is a communication scheme that is part of the low power wide are network (LPWAN) technology using ISM bands. It has seen extensive documentation and use in research and industry due to its long coverage ranges of up-to 20Km or more with less than 14dB transmit power. Moreover, some applications report theoretical battery lives of upto 10years for field deployed modules utilising the scheme in WSN applications. Additionally, the scheme is very resilient to losses from noise, as well bursts of interference … Show more
“…LPWAN [47], [48] is considered the trendsetter in wireless networking. This is because it offers good communication range, good scalability, and low energy consumption, which are key requirements in Industry 4.0.…”
Section: B Wireless Communication Technologies and Servicesmentioning
In recent years, considerable advances in connecting industrial equipment to the Internet allowed a higher level of operational efficiency, productivity, and automation. Nevertheless, the construction industry still presents challenging requirements, like long-distance wireless communication, interconnection of out-ofcoverage areas, constant mobility of machinery, and support for legacy and proprietary systems. All these requirements pose different challenges when compared with traditional smart factory Industry 4.0 solutions. This paper discusses some of the current key questions regarding fleet management in the construction industry, identifies requirements for heavy-duty machinery, and proposes an Industrial Internet of Things (IIoT)-based solution for the integrated monitoring of such machinery. Also, it proposes and presents an open, innovative solution for the integrated management of non-standardized civil construction vehicle technologies. The developed prototype uses the J1939 protocol to collect machinery status and Long-Range Wide Area Network (LoRaWAN) to communicate the monitored data. The solution was assessed at the construction site of the new port of Sines in Portugal. A detailed description of the proposed system is provided, along with information on trials and evaluation results regarding its performance. Additionally, the paper provides insights into open issues and challenges in this field and how our solution can contribute to overcoming them.
“…LPWAN [47], [48] is considered the trendsetter in wireless networking. This is because it offers good communication range, good scalability, and low energy consumption, which are key requirements in Industry 4.0.…”
Section: B Wireless Communication Technologies and Servicesmentioning
In recent years, considerable advances in connecting industrial equipment to the Internet allowed a higher level of operational efficiency, productivity, and automation. Nevertheless, the construction industry still presents challenging requirements, like long-distance wireless communication, interconnection of out-ofcoverage areas, constant mobility of machinery, and support for legacy and proprietary systems. All these requirements pose different challenges when compared with traditional smart factory Industry 4.0 solutions. This paper discusses some of the current key questions regarding fleet management in the construction industry, identifies requirements for heavy-duty machinery, and proposes an Industrial Internet of Things (IIoT)-based solution for the integrated monitoring of such machinery. Also, it proposes and presents an open, innovative solution for the integrated management of non-standardized civil construction vehicle technologies. The developed prototype uses the J1939 protocol to collect machinery status and Long-Range Wide Area Network (LoRaWAN) to communicate the monitored data. The solution was assessed at the construction site of the new port of Sines in Portugal. A detailed description of the proposed system is provided, along with information on trials and evaluation results regarding its performance. Additionally, the paper provides insights into open issues and challenges in this field and how our solution can contribute to overcoming them.
“…However, GPRS has a better nominal range, therefore better coverage. This is the main reason for which LoRa has been widely used in IoT applications [27]. About power supply, most of the projects use a photovoltaic system; others are connected to the grid and have batteries in case of power supply failure.…”
Section: Negro and Tobia River Basins Colombiamentioning
Fluvial flooding occurs when a river overspills its banks due to excessive rainfall, and it is the most common flood event. In urban areas, the increment of urbanization makes communities more susceptible to fluvial flooding since the excess of impervious surfaces reduced the natural permeable areas. As flood prevention strategies, early warning systems (EWS) are used to reduce damage and protect people, but key elements need to be selected. This manuscript proposes the monitoring instruments, communication protocols, and media to forecast and disseminate EWS alerts efficiently during fluvial floods in urban areas. First, we conducted a systematic review of different EWS architectures for fluvial floods in urban areas and identified that not all projects monitor the most important variables related to the formation of fluvial floods and most use communication protocols with high-energy consumption. ZigBee and LoRaWAN are the communication protocols with lower power consumption from the review, and to determine which technology has better performance in urban areas, two wireless sensor networks were deployed and simulated in two urban areas susceptible to fluvial floods using Radio Mobile software. The results showed that although Zigbee technology has better-received signal strength, the difference with LoRAWAN is lower than 2 dBm, but LoRaWAN has a better signal-to-noise ratio, power consumption, coverage, and deployment cost.
В роботі запропонована модель системи позиціонування та моніторингу на основі багаторівневої структури передачі даних в розподіленій мережі. Обґрунтування моделі виконано на основі дослідження технологій обміну даними, апаратних компонентів, програмного забезпечення, варіантів топології побудови систем обміну даними. Проведено експериментальне дослідження реалізації функцій моніторингу та позиціонування на основі застосування моделі, що запропонована. Показано, що до основних властивостей моделі відноситься масштабування структури в залежності від конкретних задач, можливість поєднання в єдину систему стаціонарних та рухомих елементів, які здійснюють збір, обробку та передачу даних. Область застосування моделі, що запропонована, це віддалені райони, де відсутній стільниковий зв'язок, роззосереджені промислові об’єкти, аеродроми. Дана модель може бути основою для удосконалення систем пошуково-рятувального забезпечення та системи управління повітряним рухом при застосуванні безпілотних літальних апаратів, в тому числі спільно з пілотованою авіацією.
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