Relevant bibliographies by topics / Protocollo MQTT

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Protocollo MQTT'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Protocollo MQTT"

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Salamanca-Figueroa, Fabián Andrés, Willmar Arbey Suarez- Rodrígez, and Christian Camilo Cárdenas-Gamboa. "Prototipo de monitoreo y alarma para la detección de heladas blancas en sectores rurales de Sogamoso." Ingeniería Investigación y Desarrollo 18, no. 1 (January 12, 2018): 47. http://dx.doi.org/10.19053/1900771x.v18.n1.2018.8032.

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El presente artículo muestra el diseño de un prototipo de monitoreo y alarma que permite la detección de heladas blancas y sirve de base para el desarrollo de un prototipo que posibilite la detección y predicción de heladas negras. El dispositivo, muestra las variables atmosféricas de temperatura y humedad, las comunica a un servidor local (Broker) mediante WiFi y el protocolo MQTT, éste a su vez retransmite la información útil a otros dispositivos finales, como celulares y computadoras. El sistema es capaz de alertar mediante una alarma y permitir la comunicación de estos eventos a los diferentes dispositivos finales. Para lograr ésto, fue necesario seleccionar los dispositivos, tecnologías y protocolos convenientes, realizar un diseño y validarlo por medio de la emulación de las condiciones de temperatura y humedad adecuadas.
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Quiñones, Manuel Fernando, Hever Patricio Pachar Bravo, Javier Martínez-Curipoma, Luis Quiñones, and Rommel Torres. "Desarrollo y evaluación de un gateway móvil IoT para redes 4G LTE." Enfoque UTE 11, no. 4 (October 1, 2020): 16–26. http://dx.doi.org/10.29019/enfoqueute.v11n4.634.

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La tendencia actual es interconectar cualquier dispositivo para ser monitoreado y controlado de manera remota por medio de tecnologías propias del concepto de IoT. Uno de los problemas es conectar los dispositivos a una red mediante tecnologías con suficiente cobertura y capacidad, por lo que en el presente artículo se muestra el desarrollo de un gateway móvil para aplicaciones IoT bajo la plataforma Android, evaluado en redes móviles de 4G. El gateway móvil IoT envía los datos recolectados de sensores mediante la selección de los protocolos MQTT y HTTP, hacia plataformas IoT en Internet. La arquitectura se compone de sensores de temperatura, luminosidad y presión que se integran en un nodo sensor, cuya función es la obtención de los datos, procesamiento y luego, mediante Bluetooth, se envía a un smartphone Android, donde se ejecuta una aplicación que hace la función gateway móvil. Aquí se realiza el entramado de datos que son enviados mediante la red 4G LTE hacia las plataformas IoT de Ubidots y Watson IoT. Posteriormente se realizaron pruebas con varias métricas como latencia, demanda de corriente y costos de conexión. Se concluye que el gateway móvil IoT tiene un mejor rendimiento bajo el protocolo MQTT, en comparación con HTTP.
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ALBUQUERQUE, J., D. CHEN, M. BASTOS, A. SOARES, and W. VALENZUELA. "UMA APLICAÇÃO IOT COM PROTOCOLO MQTT PERSISTINDO EM MONGODB." Revista SODEBRAS 15, no. 174 (June 2020): 54–58. http://dx.doi.org/10.29367/issn.1809-3957.15.2020.174.54.

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Silva, Daniel, Liliana I. Carvalho, José Soares, and Rute C. Sofia. "A Performance Analysis of Internet of Things Networking Protocols: Evaluating MQTT, CoAP, OPC UA." Applied Sciences 11, no. 11 (May 26, 2021): 4879. http://dx.doi.org/10.3390/app11114879.

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IoT data exchange is supported today by different communication protocols and different protocolar frameworks, each of which with its own advantages and disadvantages, and often co-existing in a way that is mandated by vendor policies. Although different protocols are relevant in different domains, there is not a protocol that provides better performance (jitter, latency, energy consumption) across different scenarios. The focus of this work is two-fold. First, to provide a comparison of the different available solutions in terms of protocolar features such as type of transport, type of communication pattern support, security aspects, including Named-data networking as relevant example of an Information-centric networking architecture. Secondly, the work focuses on evaluating three of the most popular protocols used both in Consumer as well as in Industrial IoT environments: MQTT, CoAP, and OPC UA. The experimentation has been carried out first on a local testbed for MQTT, COAP and OPC UA. Then, larger experiments have been carried out for MQTT and CoAP, based on the large-scale FIT-IoT testbed. Results show that CoAP is the protocol that achieves across all scenarios lowest time-to-completion, while OPC UA, albeit exhibiting less variability, resulted in higher time-to-completion in comparison to CoAP or MQTT.
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Sahmi, Imane, Abderrahim Abdellaoui, Tomader Mazri, and Nabil Hmina. "MQTT-PRESENT: Approach to secure internet of things applications using MQTT protocol." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 5 (October 1, 2021): 4577. http://dx.doi.org/10.11591/ijece.v11i5.pp4577-4586.

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The big challenge to raise for deploying the application's domain of the Internet of Things is security. As one of the popular messaging protocols in the IoT world, the message queue telemetry transport (MQTT) is designed for constrained devices and machine-to-machine communications, based on the publish-subscribe model, it offers a basic authentication using username and password. However, this authentication method might have a problem in terms of security and scalability. In this paper, we provide an analysis of the current research in the literature related to the security for the MQTT protocol, before we give a brief description of each algorithm used on our approach, to finally propose a new approach to secure this protocol based on AugPAKE algorithm and PRESENT encryption. This solution provides mutual authentication between the broker and their clients (publishers and subscribers), the confidentiality of the published message is protected twice, the integrity and non-repudiation of MQTT messages which is protected during the process of transmission.
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Najeeb, Nihaala, and Shelbi Joseph. "IoT Service Search using MQTT Protocol." International Journal of Computer Sciences and Engineering 7, no. 7 (July 31, 2019): 292–97. http://dx.doi.org/10.26438/ijcse/v7i7.292297.

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Ramos Rojas, José Julian, Pedro Rafael Guevara Salgado, Pedro José Jiménez Pérez, and Samir Oswaldo Castaño Rivera. "SisMo: sistema de seguridad para motocicletas." Ingenium 10, no. 28 (June 30, 2016): 19. http://dx.doi.org/10.21774/ing.v10i28.651.

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Este trabajo de investigación aborda los aspectos relacionados con el diseño, la construcción y la implementación de un sistema de seguridad para motocicletas mediante la utilización de dispositivos móviles bajo sistemas Android y el protocolo de comunicación Message Queue Telemetry Transport [MQTT], como estrategia en la prevención y recuperación de este tipo de vehículos, en caso de ser hurtados. El sistema desarrollado permitió realizar un seguimiento en tiempo real de la ubicación, la notificación de alertas vía móvil y el control del sistema eléctrico de la motocicleta. Es importante resaltar cómo la integración de tecnologías GPRS, GPS, Arduino y el protocolo MQTT, bajo el concepto de Internet de las cosas [IoT] facilita la comunicación entre dispositivos móviles y vehículos de transporte particular, tales como motocicletas, carros y bicicletas. Para su desarrollo, el equipo investigador partió del reconocimiento de las funcionalidades y las limitaciones de dispositivos de similar propósito disponibles en el mercado.
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Shaikh, Arefa Shafique. "A Survey on Exchanging Data Using MQTT Protocol in Arduino." International Journal for Research in Applied Science and Engineering Technology 9, no. VII (July 31, 2021): 3081–82. http://dx.doi.org/10.22214/ijraset.2021.37007.

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In the coming years, sensors will likely grow in every aspect of our lives. Several activities explain how the Internet of Things (IoT) will have an impact on almost all aspect of our lives and why security is at the top of the list of IoT challenges. Device to Device communications (D2D) in IoT are forecast and another major concern within the use of IoT is to make sure device security, D2D connectivity and high quality data. Therefore, a proper communication protocol is required to fix this issues. To address this, we purpose the use of Message Queue Telemetry Transport(MQTT)protocol to transfer data between devices, as it is more secured. MQTT (Message Queuing Telemetry Transport) is a publish/subscribe messaging protocol which works on top of the TCP/IP protocol. The key feature of MQTT is its light weight, adds flexible authentication and bandwidth efficiency. The result of this study is transferring high quality data securely using MQTT protocol.
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Atmoko, Rachmad Andri, Daoguo Yang, M. Yayan Alfiani, and Lilik Subiyanto. "Controlling Unmanned Surface Vehicle Using MQTT Protocol." Journal Of Computer Networks, Architecture and High Performance Computing 1, no. 2 (July 16, 2019): 21–28. http://dx.doi.org/10.47709/cnapc.v1i2.229.

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Abstract- The communication system at USV is the most important part of ensuring that the USV control system runs well. Communication systems that are commonly used at USV are generally still local networks. The development of a wider range of communications is needed to improve USV scalability so that the benefits can be increased to support the concept of remote laboratory and remote surveillance. USV is generally controlled using a wireless network with a limited work area using WIFI or using another electromagnetic waves transmission. This research proposes the development control and monitoring systems of USV to be controlled over the Internet by using the message queuing telemetry transport(MQTT) Protocol. This idea makes the USV can be controlled remotely, no longer have to operate it in the field. The control speed response of rudder and motor are analyzed. Performance monitoring of the compass sensor, GPS, and cameras also showed good results. As a result, the average delay time generated is 1.6 second.
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Quincozes, Silvio, Tubino Emilio, and Juliano Kazienko. "MQTT Protocol: Fundamentals, Tools and Future Directions." IEEE Latin America Transactions 17, no. 09 (September 2019): 1439–48. http://dx.doi.org/10.1109/tla.2019.8931137.

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Dissertations / Theses on the topic "Protocollo MQTT"

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Rinaldini, Fabrizio. "Comunicazione tra dispositivi IoT e Cloud tramite protocollo MQTT." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13199/.

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Panoramica sull'Internet delle Cose. Introduzione, studio e contestualizzazione del protocollo MQTT. Analisi di una comunicazione di tra dispositivi IoT e Cloud tramite protocollo MQTT. Ricerca su soluzioni IoT preconfigurate. Confronto tra MQTT e HTTP, con metodo Post.
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Silvestri, Marco. "Progetto e sviluppo di un'estensione del protocollo MQTT per la gestione di dati geospaziali con meccanismi di privacy." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/22138/.

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Molte aziende nel mondo tengono traccia dei movimenti motivando la loro attività affermando che gli utenti stessi acconsentono a essere tracciati, i dati geolocalizzati memorizzati sono anonimi e al sicuro. È doveroso ricordare infatti che i dati sulla posizione contengono miliardi di punti senza informazioni identificabili come nomi o indirizzi e-mail; il problema in materia sussiste in quanto è stato dimostrato essere fattibile il collegamento di nomi reali ai punti che appaiono sulle mappe nel mondo. Si possono quindi ricordare dozzine di aziende che traggono profitto da tali dati ogni giorno in tutto il mondo, raccogliendoli direttamente dagli smartphone. Per questo motivo in questo progetto di tesi è stato affrontato il tema della privacy nella geolocalizzazione, proponendo un’estensione di un protocollo molto utilizzato in vari ambiti dell'Internet of Things (IoT): MQTT. Il protocollo è stato scelto per le sue ottime prestazioni in sensori e dispositivi nell'ambito dell'IoT, come lo stato dell'arte riportato conferma. Il focus nel mondo dell'IoT è avvenuto in seguito alla presenza continua di questi dispositivi in automobili, ambienti di lavoro, domestici e molti altri, rendendo così un’esigenza fondamentale la regolazione del trattamento dei dati di geolocalizzazione all'interno di questi sensori. Si è realizzato un meccanismo di abbonamento ad un servizio fornito in base ad un geofence precedentemente progettato da determinati utenti. Si rilevano l'entrata, l'uscita e la permanenza nei geofence stessi al fine di avvertire gli utenti con messaggi da loro preimpostati e con notifiche relative al servizio a cui si sono volontariamente abbonati.
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Yara, Ahmad. "Preventing Vulnerabilities and MitigatingAttacks on the MQTT Protocol." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-90763.

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Syftet med denna studie är att undersöka och förstå hur säkerhetsöverträdelser kan förhindrasoch mitigeras i ett MQTT protokoll för att öka den överliggande säkerheten. Jag är särskiltintresserad av tekniker såsom Fuzzing, Fuzzy Logic och Machine Learning..För att undersöka syftet, analyserade och diskuterade jag tidigare implementationer avFuzzing, Fuzzy Logic och Machine Learning, i ett MQTT protokoll. Analysen visade attFuzzing ansågs vara en väldigt effektiv metod för att förhindra säkerhetsöverträdelser samtatt både Fuzzy Logic och Machine Learning var effektiva metoder för mitigering.Sammanfattningsvis, kan säkerhetsnivån i ett MQTT protokoll öka genom implementering avmetoder som används i syfte att förhindra och mitigera säkerhetsöverträdelser. Exempelviskan man först använda Fuzzing för att hitta och korrigera sårbarheter och därigenomförhindra dem. Därefter kan man antingen använda sig av Fuzzy Logic eller MachineLearning för att mitigera plötsliga attacker på MQTT protokollet när den är i produktion.Detta betyder att att utvecklaren kan kombinera metoder för att både förhindra och mitigeraöverträdelser i syfte att öka säkerhetsnivån i ett MQTT protokoll.
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Fakhraddin, Haider. "Toward IoT : Implementation of WSN based MQTT Data Protocol." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-92453.

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Human seeks the maximum profits with least efforts in each and every single life aspect. The development of technology starting with the machine-to-machine concept to reduce human interface with manufacturing processes, hence reducing errors, cost and time. The development enters a new era of connecting those machines and devices to internet, and furthermore make part of data processing and analysis at those machine or devices parts. This concept is what is known nowadays as the Internet of Things (IoT). In this thesis, design for a proposed system is introduced. MQTT messaging protocol used as the data exchange protocol to aggregate the data from WSN that incorporated local and remote sensor. ATmega 328 microcontroller unit, NodeMCU development board, SIM800L GSM module and DHT11 sensor modules where used to implement the nodes while Raspberry Pi 3B was used to implement a gateway that acts as the MQTT broker in order to aggregate the data. The proposed system has been implemented and tested successfully. The power consumption for the remote sensor nodes consumed only 20 mWh and the response time for the data transferred within the system’s network from the remote sensor node to the server is about 7 milliseconds with a total error of 0.11%. The system shows an excellent performance and provide a simple solution to link remote sensors which are out of the gateway’s local network coverage.
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Wickman, Tomas. "Evaluation of communication protocols between vehicle and server : Evaluation of data transmission overhead by communication protocols." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189228.

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This thesis project has studied a number of protocols that could be used to communicate between a vehicle and a remote server in the context of Scania’s connected services. While there are many factors that are of interest to Scania (such as response time, transmission speed, and amount of data overhead for each message), this thesis will evaluate each protocol in terms of how much data overhead is introduced and how packet loss affects this overhead. The thesis begins by giving an overview of how a number of alternative protocols work and what they offer with regards to Scania’s needs. Next these protocols are compared based on previous studies and each protocol’s specifications to determine which protocol would be the best choice for realizing Scania’s connected services. Finally, a test framework was set up using a virtual environment to simulate different networking conditions. Each of the candidate protocols were deployed in this environment and setup to send sample data. The behaviour of each protocol during these tests served as the basis for the analysis of all of these protocols. The thesis draws the conclusion that to reduce the data transmission overhead between vehicles and Scania’s servers the most suitable protocol is the UDP based MQTT SN.
I den här rapporten har jag undersökt ett antal protokoll som kan användas för att kommunicera mellan server och lastbil och därmed användas för Scanias Connected Services. Då det är många faktorer som är intressanta när det kommer till kommunikation mellan lastbil och server för Scania som till exempel responstid, överföringshastighet och mängden extra data vid överföring så har jag valt att begränsa mig till att utvärdera protokollen utifrån hur mycket extra data de använder vid överföring och hur detta påverkas av paketförlust. Rapporten börjar med att ge en överblick över vilka tänkbara protokoll som kan användas och vad de kan erbjuda gällande Scanias behov. Efter det så jämförs protokollen baserat på tidigare studier och protokollens specifikationer för att avgöra vilket protokoll som är bäst lämpat att användas i Scanias Connected Services. Sists så skapas ett virtuellt ramverk för att simulera olike nätverksförhållanden. Här testas varje protokoll och får sända olike datamängder för att sedan få sin prestanda utvärderad baserat på hur mycket extra data som sändes. Dessa resultat ligger sedan till grund för den analys och slutsats angående vilket protokoll som är bäst lämpat att användas av Scania. Rapporten drar slutsatsen att baserat på den information som finns tillgänglig och de resultat som ficks av testerna så skulle den UDP baserade MQTT-SN vara bäst lämpad för att minimera mängden extra data som skickas.
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Werlinder, Marcus. "Comparing the scalability of MQTT and WebSocket communication protocols using Amazon Web Services." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280700.

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This study compares the scalability of two popular communication protocols within IoT, MQTT and WebSocket. The scalability comparison of the protocols is performed using a publish-subscribe pattern. EMQX is used to run the MQTT message broker, and Socket.IO is used for theWebSocket message broker. Five metrics are recorded; memory usage, network usage, CPU utilization, Round Trip Time (RTT) and message loss. The brokers are set in two different scenarios. The first scenario being many publishers and few subscribers, and the second scenario being many subscribers and few publishers. AWS EC2 is used to host the brokers, as well as the publishers and subscribers. The findings of this study indicate that WebSocket is best suited for memory usage and CPU utilization. MQTT is much better suited when it comes to network usage. MQTT and WebSocket has almost identical average RTT in the first scenario. However in the second scenario MQTT has an average RTT of 164 ms, compared to WebSocket that has an average RTT of 331 ms. Both communication protocols perform similar for message loss, whereWebSocket has zero dropped message, while  MQTT has a drop rate of only 0.001%.
Denna studie jämförde skalbarheten mellan två populära kommunikationsprotokoll inom IoT, MQTT och WebSocket. För att jämföra skalbarheten av kommunikationsprotokollen användes en utgivare-prenumerant-metodik. För MQTT användes meddelandehanteraren EMQX, och för WebSocket användes Socket.IO. Fem mätvärden dokumenterades; minnesanvändning, nätverksanvändning, CPU-användning, tur och retur - tid och meddelandeförlust. Meddelandehanterarna sattes i två olika scenarier. Första scenariot bestod av många utgivare och få prenumeranter. Det andra scenariot bestod av många prenumeranter och få utgivare. AWS EC2 användes för att agera som värd för meddelandehanterarna, samt för utgivarna och prenumeranterna. Resultaten av denna studie indikerar att WebSocket är bäst lämpad för minnesanvändning och CPU-användning. MQTT är däremot bättre lämpad för nätverksanvändning. MQTT och WebSocket hade nästan identiska genomsnittliga tur och retur - tider i första scenariot, dock i andra scenariot hade MQTT en genomsnittlig tur och retur - tid på 164 ms medan WebSocket hade en genomsnittlig tur och retur - tid på 331 ms. Båda kommunikationsprotokollen hade snarlika resultat när det kom till  meddelandeförlust, WebSocket hade noll tappade meddelanden och MQTT hade en meddelandeförlust på 0.001 %.
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Jimenez, Canal Vicmar Raul. "Evaluación y diseño de una Plataforma IoT con soporte de protocolo MQTT para un entorno de red empresarial." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2020. http://hdl.handle.net/20.500.12404/17707.

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La transformación digital ha traído consigo muchos beneficios y retos para las empresas; y pese a ello, aún se tiene muchos inconvenientes en adoptar un sistema centralizado para las tecnologías IoT. Las plataformas IoT son sistemas solicitados por las empresas para unificar toda la labor de gestión y operativa relativa al IoT, sin embargo, las empresas para optar por un nuevo tipo de tecnología requieren de referencias de mercado como evaluaciones en ambientes de prueba, diseños validados o experiencias en la misma tecnología en otras empresas del mismo rubro. A pesar de esto, se carece de estas pruebas, evaluaciones y estándares en las plataformas IoT actuales del mercado por lo cual se dificulta su adopción. Es así, como la presente tesis tiene como objetivo realizar la prueba, evaluación y diseño del rendimiento de una plataforma IoT empleando software de código libre. Esto se realizará mediante la implementación de todos los componentes en un centro de datos de prueba y como resultado, se podrá contrastar el beneficio de las distintas plataformas IoT en cada escenario establecido. Dado que los escenarios propuestos son en base a plataformas IoT de terceros, se busca desarrollar un nuevo sistema que cubra las mismas capacidades, y por consiguiente, sea el inicio de futuros proyectos que se complementen con lo propuesto para las tecnologías IoT Finalmente, obtenido toda la información y capacidades respecto a las plataformas, se realizó un análisis exhaustivo del porqué de cada parámetro recibido y como estos pueden beneficiar a los requerimientos empresariales de todo tamaño. Como resultado final, se propone un estudio de mercado en el cual la empresa analizara los costos de implementación para un tipo de escenario.
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Ngouakang, Ive Marcial. "Using the MQTT to implement an IoT infrastructure." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21039/.

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In this thesis we investigated the MQTT protocol, which results in being a valid solution for data transmission in an IoT solution. After having explored the main communication protocols, we focused on the main features of the MQTT that has been selected for our application. To this purpose, a MQTT broker has been created on Node-RED, while the remaining elements of the application have been developed on MATLAB. In particular, we exploited the MQTT and the Database toolboxes: the former is used to exchange data between two PCs through the MQTT protocol, while the latter is necessary to insert data into a database. Before describing the application, we discussed the relevance of databases and the one we have chosen for our need. The application we implemented showed how to transmit smart data between different devices on the same network through the MQTT protocol, with the aim to store information in a central database on PostgreSQL. The architecture built could be easily generalized and therefore applied in a real industrial case, as the possibility to centralize data generated from several machine controllers is becoming a fundamental requirement for industries. In summary, the aim of this paper is to create a new communication exchange information data between machines in an industry, home or any other domain by using the lightweight protocol communication call MQTT. Although Node-Red, MatLAb, Postgres can be written in different program language, they can share each other information, data to manage, control and monitoring entire system without using any cable to link the machine but only an Internet connection. IIoT becomes more popular nowadays.
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Pettersson, William. "An Evaluation of IoT Protocol Efficiency and suitability : For smart vehicles, smart homes & industrial scenarios." Thesis, Mittuniversitetet, Institutionen för informationssystem och –teknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-42392.

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Internet of things (IoT) är det överläggande området i denna rapport. IoT är ett väldigt intressant I nuläget och är snabbt växande. IoT kan beskrivas som ett nätverk av kommunicerande enheter som delar information och automatiserar eller försimplar uppgifter och därav ökar effektivitet och säkerhet. Området växer så pass fort att det förväntas vara 24 miljarder anslutna enheter vid år 2050, denna utökning leder i sin tur till ett ökat behov av förståelse för IoT protokollen som hanterar kommunikationen emellan enheterna. Detta för att kunna välja det mest optimala protokollet för ett givet scenario. Detta arbete kommer att välja ett lovande protokoll för undersökning samt evaluering gällande dess prestation berörande fördröjning, dataöverföringshastighet och skalbarhet.  Protokollet som valdes var MQTT (Message Queuing Telemetry Transport). Baserat på dessa evaluerade värden föra en diskussion gällande protokollets lämplighet inom scenariona. Värdena kommer att tas fram via tidmätningar start till slut för kommunikationen samt tid för att skicka en mängd meddelanden, båda i respekt till antalet samtidigt kommunicerande program. Testen körs med en lokal PC som agerar Broker och en Raspberry Pi som kör samtliga programmen i individuella terminaler. Resultaten var att fördröjningen verkar ha en näst intill linjär relation och dataöverföringshastighet ett exponentiellt avtagande beteende i respekt till samtidigt kommunicerande enheter. Dem mätta resultaten analyseras och diskuteras, och kommer till slutsatsen att protokollet är en lämplig kandidat för de flesta scenarion, så som smarta bilar, smarta hem och till viss del industriell användning. Den största nackdelen med protokollet var dess höga standardavvikelse gällande individuella meddelandens fördröjning.
Internet of things (IoT) is the base topic of this thesis, and it is a rapidly growing area, it can be described  as a network of communicating devices sharing information and streamlining tasks in addition to increasing efficiency and security. It is expected to be 24 billion connected devices by year 2050 and with this growth comes an increased demand on understanding the IoT protocols to be able to choose a suitable protocol for a given scenario. This thesis will discuss this area and pick one protocol to evaluate specifically regarding latency, throughput, and scalability. The protocol chosen were MQTT (Message Queuing Telemetry Transport). Based on these values then discuss whether the protocol is a suitable candidate for the scenarios. The data to evaluate this will be gathered by measuring the end-to-end time of the protocol in respect to the number of communicating programs, and to measure the time it takes to communicate a number of messages with respect to the number of programs handling the communication. These tests are performed with a local PC acting as the broker and a Raspberry pi running each of the communicating programs on individual terminals. The results were that latency seem to have a close to liner relation, and that throughput seem to have an exponentially decreasing relation with respect to number of clients cooperating. The measured results are analyzed and discussed and concluded that the protocol is a fitting candidate for most scenarios such as smart cars, smart homes and to some extent industry. The biggest flawed concluded was the protocols high standard deviation for individual messages latency. The outcome of the benchmarks measurement showed that increasing the number of nodes would not result in superior performance. It was noted that an optimal number of nodes was found to be between 1 and 20 for all the tests performed. The study showed that no load balancer could be considered a clear winner, instead, different configurations of load balancers performed varyingly well at different tests.
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Sozio, Diego. "Protocolli applicativi per il mondo Internet Of Things." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17544/.

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Introduzione al mondo IoT e definizione delle caratteristiche che accomunano i dispositivi che lo compongono, alcuni cenni sulle tecnologie WSN e RFID. Analisi e studio dei principali protocolli di comunicazione, sia ambito produttivo che non, quali MQTT, LonWorks e OPC-UA e relativi scenari applicativi. Possibili sviluppi dei protocolli al fine di unificare l'interfaccia di comunicazione
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Books on the topic "Protocollo MQTT"

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Hillar, Gaston C. Hands-On MQTT Programming with Python: Work with the lightweight IoT protocol in Python. Packt Publishing, 2018.

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Book chapters on the topic "Protocollo MQTT"

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Rizos, Athanasios, Daniel Bastos, Andrea Saracino, and Fabio Martinelli. "Distributed UCON in CoAP and MQTT Protocols." In Computer Security, 35–52. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42048-2_3.

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Zhang, Shan, Heng Zhao, Xin Lu, and Junsuo Qu. "Design of IoT Platform Based on MQTT Protocol." In Proceedings of the Fifth Euro-China Conference on Intelligent Data Analysis and Applications, 210–16. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-03766-6_23.

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Mukambikeshwari and Asmita Poojary. "Smart Watering System Using MQTT Protocol in IoT." In Advances in Intelligent Systems and Computing, 1415–24. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3514-7_106.

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Tanabe, Kotaro, Yoshinori Tanabe, and Masami Hagiya. "Model-Based Testing for MQTT Applications." In Knowledge-Based Software Engineering: 2020, 47–59. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53949-8_5.

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Abstract Model-based testing is a widely-used vital technique for testing software running in a complex environment. In this paper, we propose extensions to existing model-based tools to apply this technique to software that employs the MQ Telemetry Transport (MQTT) protocol for transmitting messages, commonly used in the Internet of Things (IoT) environment. First, in the finite state machine used for generating test cases in a model-based testing framework, we introduce a type of transition that is triggered when receiving MQTT messages. Second, we extend the finite-state machine so that it produces test cases that reflect the characteristics of IoT software – a large number of relatively simple devices communicate with servers. Third, the concept of time is introduced into the finite state machine. Naturally, this is necessary for verifying the properties of software that runs for a long time. Moreover, to facilitate such verification, both real-time and virtual time are introduced. We implemented these extensions into a model-based testing tool, Modbat, and conducted a small experiment to confirm the feasibility, gaining positive results.
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Kuncicky, Radim, Jakub Kolarik, Lukas Soustek, Lumir Kuncicky, and Radek Martinek. "IoT Approach to Street Lighting Control Using MQTT Protocol." In Lecture Notes in Electrical Engineering, 429–38. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14907-9_42.

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Archana, E., Akshay Rajeev, Aby Kuruvila, Revathi Narayankutty, and Jinesh M. Kannimoola. "A Formal Modeling Approach for QOS in MQTT Protocol." In Advances in Intelligent Systems and Computing, 39–57. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0132-6_4.

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Manohar, Hansa Lysander, and T. Reuban Gnana Asir. "Data Consumption Pattern of MQTT Protocol for IoT Applications." In Communications in Computer and Information Science, 12–22. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7635-0_2.

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Burange, Anup, Harshal Misalkar, and Umesh Nikam. "Security in MQTT and CoAP Protocols of IOT’s Application Layer." In Communications in Computer and Information Science, 273–85. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2372-0_24.

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Sahmi, Imane, Tomader Mazri, and Nabil Hmina. "The Security of MQTT Against the Applications Protocols for IoT." In Innovations in Smart Cities Applications Volume 4, 1142–54. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66840-2_87.

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Dedgaonkar, Suruchi, Aakankssha Kaalay, Nitesh Biyani, and Madhuri Mohite. "Biogas Monitoring System Using DS18B20 Temperature Sensor and MQTT Protocol." In Intelligent Computing and Information and Communication, 567–77. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7245-1_56.

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Conference papers on the topic "Protocollo MQTT"

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Cosmi, Arthur Brito, and Vinicius F. S. Mota. "Uma Análise dos Protocolos de Comunicação para Internet das Coisas." In III Workshop de Computação Urbana. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/courb.2019.7475.

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With the growth of devices connected to the Internet, several application layer protocols specific for the Internet of Things (IoT) appear every day. This high number of protocols bring doubts to developers about what to use in their projects. This work aims to assist developers in the decision making in their IoT projects. This work presents a qualitative analysis of the MQTT, MQTT-SN, CoAP and AMQP protocols. In a qualitative way, we analyzed thedomains of application and requirements of the applications to map the protocol choice. After that, the MQTT and CoAP protocols were analyzed using devices with low processing and memory capabilities. Results show that MQTT outperforms CoAP when there are several other devices accessing the same access point.
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Bezerra, Wesley Dos Reis, and Carlos Becker Westphall. "Avaliação de desempenho de protocolos de mensagens com arquitetura publish/subscribe no ambiente de computação em nevoeiro: um estudo sobre desempenho do MQTT, AMQP e STOMP." In Workshop de Pesquisa Experimental da Internet do Futuro. Sociedade Brasileira de Computação, 2020. http://dx.doi.org/10.5753/wpeif.2020.12468.

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Soluções seguras para IoT e agronegócios são primordiais. Entretanto se faz necessária a adoção da tecnologia adequada para o desenvolvimento de sistemas nesta área. Com foco nos protocolos de mensagem pub/sub, nosso trabalho traz uma visão geral dos protocolos de mensagem AQMP, MQTT e STOMP, uma descrição de caso de uso de aplicação de segurança no agronegócio e uma experimentação para avaliação do desempenho temporal dos protocolos citados. Ao final, são discutidos os resultados e avaalido qual protocolo é o mais indicado para as situações análogas aos casos de uso citados.
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Zolett, Daniel, and Alejandro Rafael Garcia Ramirez. "Desenvolvimento de uma Interface de Monitoração Remota para o Sistema Robótico ROBIX, Integrando o Protocolo MQTT e oROS." In Computer on the Beach. Itajaí: Universidade do Vale do Itajaí, 2020. http://dx.doi.org/10.14210/cotb.v11n1.p405-412.

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The history of the industry has been undergoing many changes,improving production methodologies and setting new goals. Theindustry is currently facing a new challenge called Industry 4.0.This is the result of technological developments in areas such asthe Internet of Things (IoT), Information and Communication Technology(ICT) and Automation Systems. The goal is to define amore dynamic and efficient production line, improving productionin terms of resources and time. However, in the current scenario,there are some difficulties to overcome. One of these difficultiesis the existence of various communication protocols, being manyproprietary and closed, which hinders the interoperability betweenmachines. For this reason, there is a need to standardize communicationprotocols, facilitating the integration of all elements in theproduction line. Given this context, this paper presents the integrationof the MQTT protocol with the ROS tool to control a roboticarm viaWeb. The angles of the robot links movements are informedvia web interface. The interface communicates with the robotic armvia the MQTT protocol. The arm control software was developedusing the ROS tool as well as its simulation environment. The softwareis implemented on the Raspbarry PI 3 development board andthe robot servo motors are driven by the Arduino Mega kit processor.Data exchange between these elements is done through serialcommunication. Tests were designed to assess communication latencyto validate the feasibility of using the MQTT protocol for thisscenario. The tests proved that the latency average of the MQTTprotocol, considering the worst case scenario, was 300 milliseconds,which is within the range of the studies consulted in the literature.
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Dias, Lucas Vargas, André Rech Eichner, and Tiago A. Rizzetti. "Um mecanismo para redundância de dados entre Brokers MQTT com uso de Distributed Hash Table." In XVIII Escola Regional de Redes de Computadores. Sociedade Brasileira de Computação - SBC, 2020. http://dx.doi.org/10.5753/errc.2020.15196.

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O Message Queuing Telemetry Transport (MQTT) é um protocolo de entrega de mensagens para dispositivos no conceito de Internet das Coisas (IoT). Ele usa do paradigma Publisher/Subscriber. Os clientes trocam mensagens através de um broker, assim, criando um pontoúnico de falha. Algumas soluções apresentadas na literatura propõem um cluster para balanceamento de carga como mecanismo de defesa. Entretanto, a disponibilidade dos dados não é tratada. Este trabalho apresenta a implementação de um mecanismo para sincronismo e redundância de dados entre brokers MQTT com uso da rede Distributed Hash Table (DHT).
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Sadio, Ousmane, Ibrahima Ngom, and Claude Lishou. "Lightweight Security Scheme for MQTT/MQTT-SN Protocol." In 2019 Sixth International Conference on Internet of Things: Systems, Management and Security (IOTSMS). IEEE, 2019. http://dx.doi.org/10.1109/iotsms48152.2019.8939177.

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Correa, Remington Phelipe da Silva, Márcio José da Cunha, Marcelo Barros de Almeida, Aline Gonçalves Fernandes, and Felipe Francisco Vieira. "MONITORAMENTO DE UMA PLANTA INDUSTRIAL UTILIZANDO O PROTOCOLO MQTT EMBARCADO PROTOCOLO MQTT EMBARCADO." In XV Conferência de Estudos em Engenharia Elétrica. Uberlândia - MG, Brazil: Galoa, 2017. http://dx.doi.org/10.17648/ceel-2017-83012.

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Longo, Edoardo, Alessandro E. C. Redondi, Matteo Cesana, Andres Arcia-Moret, and Pietro Manzoni. "MQTT-ST: a Spanning Tree Protocol for Distributed MQTT Brokers." In ICC 2020 - 2020 IEEE International Conference on Communications (ICC). IEEE, 2020. http://dx.doi.org/10.1109/icc40277.2020.9149046.

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Salagean, Maria, and Daniel Zinca. "IoT Applications based on MQTT Protocol." In 2020 International Symposium on Electronics and Telecommunications (ISETC). IEEE, 2020. http://dx.doi.org/10.1109/isetc50328.2020.9301055.

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Johari, Rahul, Shubhi Bansal, and Kanika Gupta. "Routing in IoT using MQTT Protocol." In 2020 12th International Conference on Computational Intelligence and Communication Networks (CICN). IEEE, 2020. http://dx.doi.org/10.1109/cicn49253.2020.9242600.

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de Siqueira Pinto, Matheus Bueno, Getúlio Santiago dos Santos Júnior, and Ghunter Paulo Viajante. "SUPERVISÓRIO PARA CONTROLE E MONITORAMENTO DE APLICAÇÕES INDUSTRIAIS UTILIZANDO O PROTOCOLO DE COMUNICAÇÃO MQTT." In XVII CEEL – Conferência de Estudos em Engenharia Elétrica. Universidade Federal de Uberlândia, 2019. http://dx.doi.org/10.14295/2596-2221.xviiceel.2019.409.

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Internet das Coisas (IoT) e a Indústria 4.0 tende a ser discutido com mais frequência ao passar dos anos e não são termos novos. A IoT foi criada no início dos anos 2000, e a Indústria 4.0 foi idealizada no início de 2011 abordando conceitos da automação industrial juntamente com a evolução da computação, dessa forma o presente trabalho tem a intenção de apresentar ao público a introdução do protocolo MQTT (Message Queue Telemetry Transport) no ramo industrial para controle e supervisão de processos.
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