Understanding the tradeoffs of LoRaWAN for IoT-based Smart Irrigation

Quete, Bruno; Heideker, Alexandre; Zyrianoff, Ivan; Ottolini, Dener; Kleinschmidt, João Henrique; Soininen, Juha-Pekka; Kamienski, Carlos

doi:10.1109/metroagrifor50201.2020.9277566

Cited by 8 publications

(15 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…O ambiente de avaliação utilizado foi baseado em um sistema de fazenda inteligente [Kamienski et al, 2019] que contém a bruma e a névoa computacional (Figura 3). Sendo esse ambiente composto por quatro estágios de IoT: (i) Coisa: onde o simulador SenSE [Zyrianoff et al, 2017] gera a carga de trabalho dos sensores através da criação de pacotes LoRa, (ii) Bruma: onde o SenSE abstrai o Packet Forwarder e o LoRa Gateway Bridge [Queté et al, 2020] e envia os dados à solução ReMITS, (iii) Névoa: representando um nó de névoa que recebe dados da bruma e (iv) Nuvem: que analisa os dados enviados pela névoa.…”

Section: Ambiente De Avaliaçãounclassified

“…Como prova de conceito, foi considerada uma rede LoRaWAN 9 para exemplificar o fluxo dos dados até o ReMITS, nessa rede, os dados partem dos sensores e chegam na bruma através do Packet Forwarder e LoRa Gateway Bridge[Queté et al, 2020]. O ReMITS recebe os pacotes do LoRa Gateway Bridge via MQTT através do Enfileirador e esses pacotes são armazenados numa fila persistente chamada de Fila DB, sendo que o Enfileirador armazena os dados na Fila DB independentemente de eventuais desconexões ou interrupções da névoa.…”

unclassified

See 1 more Smart Citation

Resiliência de Dados da Bruma Computacional na Internet das Coisas

Ribeiro

Kamienski

2021

Anais Do XXXIX Simpósio Brasileiro De Redes De Computadores E Sistemas Distribuídos (SBRC 2021)

View full text Add to dashboard Cite

Um sistema IoT baseado em bruma (mist) e névoa computacional deve resistir a desconexões e a interrupções da névoa, já que os dados transmitidos pela bruma podem ser perdidos. Esse artigo propõe uma solução intitulada ReMITS, que persiste os dados na bruma, mesmo durante desconexões de rede. Também foi proposto um algoritmo de compressão (LoRa-SAX), para reduzir o atraso dos dados quando a conexão é retomada. O ReMITS foi avaliado com uma carga simulada de 5.000 sensores e com sete configurações, para 1, 5 e 30 minutos de desconexão. Foi observado que o ReMITS entregou todos os pacotes à névoa e que o LoRa-SAX combinado ao algoritmo bzip2 reduziu o tempo de chegada dos pacotes em até 98,5% e o tamanho dos dados em até 93,6%.

show abstract

Section: Ambiente De Avaliaçãounclassified

unclassified

Resiliência de Dados da Bruma Computacional na Internet das Coisas

Ribeiro

Kamienski

2021

Anais Do XXXIX Simpósio Brasileiro De Redes De Computadores E Sistemas Distribuídos (SBRC 2021)

View full text Add to dashboard Cite

show abstract

“…Chirpstack is an open source LoRaWAN Network Server stack [18]. This platform is a costeffective network platform for the design of low-cost IoT experiments and projects.…”

Section: Chirpstack Iot Platformmentioning

confidence: 99%

“…The Chirpstack gateway bridge is a service responsible for the conversion of LoRa packet forwarder protocols into a Chirpstack network server common data-format (JSON and Protobuf). The network server is an open source LoRaWAN server with the responsibility of de-duplication of the received data frames [18]. The application server handles functions such as the join-request and encryption of the application payloads [18].…”

Section: Chirpstack Iot Platformmentioning

confidence: 99%

“…The network server is an open source LoRaWAN server with the responsibility of de-duplication of the received data frames [18]. The application server handles functions such as the join-request and encryption of the application payloads [18]. Furthermore, the application server offers a web interface for device management with a gRPC and RESTful API for integration with external services [18].…”

Section: Chirpstack Iot Platformmentioning

confidence: 99%

See 1 more Smart Citation

An Open Source LoRa Based, Low-Cost IoT Platform for Renewable Energy Generation Unit Monitoring and Supervisory Control

Ndukwe¹,

Iqbal²,

Khan³

2021

JEPT

View full text Add to dashboard Cite

SCADA provides real-time system monitoring by constant communication and data exchange between various system devices to achieve data visualization and logging. Presently, in industrial systems, commercial SCADA systems are being used for data monitoring and control. These systems can be expensive, and as such can only be afforded by select industries. Even at these costs, the commercial SCADA systems face some challenges, which include interoperability and scalability issues. Research has shown that these problems can be solved by the introduction of low-cost materials and open-source software to achieve data monitoring for all levels of processes. This paper proposes an open source, low-cost Internet of Things (IoT)-based SCADA system that employs the IoT architecture for SCADA functions. The proposed system is an improvement to the existing IoT solutions by eliminating cloud based IoT platforms and introducing a single machine system. This solution increases the robustness of the system while reducing costs. The proposed system prototype consists of voltage and current sensors, Arduino Uno microcontroller and Raspberry Pi. The sensors acquire data from the monitored unit. The Arduino Uno receives the data and processes them for transmission to the Raspberry Pi using the LoRa communication technology. At the Raspberry Pi, the local Chirpstack platform processes the data and displays the measured data using the Grafana dashboard for real-time data monitoring, and the data is stored in an InfluxDB database. For system validation purposes, the prototype is designed, developed, and set up to monitor the panel voltage, current and battery voltage of a solar photovoltaic system. The results obtained from the experimental set-up are compared with the test data from physical digital multimeters. The system presented in this paper is a low-cost, open source, scalable and interoperable system. This, therefore, makes the proposed SCADA system an alternative for commercial SCADA systems, especially for select applications. The system proposed in this paper can be deployed to large industrial systems with appropriate upgrades and customization. The main contribution of this research is the design and development of a SCADA system that performs all the functions of a proprietary SCADA system at a very low-cost with scalable and interoperability features which are the main limitations of the traditional SCADA systems.

show abstract