Dissertations / Theses: 'Node-RED'

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Olsson, Joel, and Junior Asante. "Using Node-Red to Connect Patient, Staff and Medical Equipment." Thesis, Linköpings universitet, Institutionen för systemteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129781.

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The emergency departments in Region Östergötland use pen and paper to a large extent when recording emergency care procedures and measurements. During treatment the patient should be the main focus. Because of this, recording of measurements done could be delayed or in worst case forgotten during stressful situations. The proposal of this project is the development of a prototype that tries to make the administrative work a passive procedure rather than an active one. The system developed uses a Raspberry Pi, along with Node-Red, which connects predefined patient data and medical records, with the clinical staff tending the patient. All these connections are initiated by mainly using RFID technology. The conclusion made with the developed system is that it should unload the staff with the recording of data and that it helps make a data logging a more passive work than today’s used methods. Along with a process that is easier to operate, the time spent on administrative work could be reduced with the proposed system.

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Губчук, Андрій Євгенійович. "Система збору інформації електричної підстанції 35/10 кВ на основі технології Node-RED." Master's thesis, КПІ ім. Ігоря Сікорського, 2020. https://ela.kpi.ua/handle/123456789/39671.

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Магістерська дисертація містить 81 сторінку, 33 таблиці, 19 рисунків, 18 джерел літератури та 7 технічних плакатів А1. Основна частина магістерської дисертації складається з вступу, трьох основних розділів, стартап-проекту, розділу охорони праці та висновків. Актуальність теми – розширення інструментарію та функціоналу для підключення до пристроїв релейного захисту та підключення до засобів збереження інформації. Об’єкт дослідження – підстанція «Артемівська» 35/10 кВ. Предмет дослідження – збір режимної інформації з підстанції «Артемівська» 35/10 на основі технології Node-RED. Мета дослідження – розробка програмного забезпечення на основі технології Node-RED для встановлення зв’язку з пристроями релейного захисту і автоматики на прикладі пристрою релейного захисту ABB-REF615 для зчитування вимірювань. Практичне застосування результатів магістерської дисертації – побудований програмний механізм системи збору та передачі даних може бути застосований в будь-якій енергосистемі для підключення до пристроїв релейного захисту. Апробація результатів дослідження – розробка системи оприлюднена на науково-технічній конференції «Сучасні проблеми електроенерготехніки та автоматики». Публікації – «Збір інформації з пристроїв релейного захисту за допомогою Node-RED» в Міжнародному науково-технічному журналі «Сучасні проблеми електроенерготехніки та автоматики».
The master's dissertation contains 81 pages, 33 tables, 19 figures, 18 sources of literature and 7 technical posters A1. The main part of the master's dissertation consists of an introduction, three main sections, a startup project, a section on labor protection and conclusions. The relevance of the topic is the expansion of tools and functionality for connection to relay protection devices and connection to storage media. The object of research is the 35/10 kV Artemivska substation. The subject of the research is the collection of regime information from the Artemivska 35/10 substation on the basis of Node-RED technology. The aim of the research is to develop software based on Node-RED technology for communication with relay protection devices and automation on the example of the ABB-REF615 relay protection device for reading measurements. Practical application of the results of the master's dissertation - the built-in software mechanism of the data collection and transmission system can be used in any power system for connection to relay protection devices. Approbation of the research results - the development of the system was announced at the scientific and technical conference "Modern problems of electrical engineering and automation". Publications - "Collection of information on relay protection devices using Node-RED" in the International scientific and technical journal "Modern problems of electrical engineering and automation".

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Leijonberg, Carl. "The Viability of Using Trusted Execution Environments to Protect Data in Node-RED : A study on using AMD-SEV and Intel SGX to protect sensitive data when Node-RED is deployed on the cloud." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-295763.

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The Internet of Things (IoT) consists of a network of physical devices that are connected over the internet for the purpose of exchanging data with other devices and systems. IoT platforms, such as Node-RED, have been introduced in recent times to facilitate communication between different IoT devices. Hosting Node-RED on a cloud service provider might result in the confidentiality of sensitive data on Node-RED being violated by malicious attackers, since users are forced to entrust their sensitive data with the cloud service providers. Using trusted execution environments, such as AMD-SEV and Intel SGX, can mitigate several potential attacks from exposing sensitive information in Node-RED. This thesis investigates if AMD-SEV and Intel SGX are viable options to protect sensitive data in Node-RED when hosted on a cloud service provider. The work in this thesis investigates difficulties encountered when deploying Node-RED on AMD-SEV and Intel SGX, from a usability perspective. Usability is measured by running Node-RED in AMDSEV and Intel SGX, and then recording the complexity of the process. Several performance tests are conducted to measure the performance overhead of Node-RED caused by AMD-SEV. A literature review is also conducted to investigate potential vulnerabilities in AMD-SEV and Intel SGX that could undermine the security of user’s data in Node-RED. The results from this thesis finds that AMD-SEV is a viable option to protect sensitive data in Node-RED when hosted on a cloud service provider. Deploying Node-RED on AMD-SEV is found to be a relatively simple process from a usability perspective. There are some noticeable performance overhead with regards to CPU utilization and TCP throughput, but all other metrics show marginal performance overhead. The potential vulnerabilities in AMD-SEV are not found to be significant enough to make AMD-SEV unviable. The thesis finds Intel SGX to be an unviable solution primarily due to usability. The process of running Node-RED in an Intel SGX enclave is extremely complex and the results show that for most users of Node-RED, this is not viable. The security vulnerabilities found from the literature review, are not significant enough to make Intel SGX an unviable option to protect sensitive user data inNode-RED.
Internet of Things (IoT) är en nätverk av fysiska enheter som är sammankopplade via internet för att kunna skicka data till andra fysiska enheter eller system. IoTplattformar, som Node-RED, har utvecklats för att förenkla kommunikationen mellan olika IoT- enheter. Att köra Node-RED på en molntjänst kan leda till att sekretessen av känslig data på Node-RED blir kränkt av en attack mot molntjänsten. Det är på grund av att användarna av Node-RED är tvungna att tillförlita deras känsliga data till molntjänsten, som deras data kan bli kränkt. Detta problem kan förminskas genom att användarna utnyttjar trusted execution environments som AMD-SEV och Intel SGX för att skydda sin känsliga data på molntjänsten. I denna avhandling, undersöks det om AMDSEV och Intel SGX kan användas för att skydda data i Node-RED när den körs på en molntjänst. Användarvänligheten av att köra Node-RED med AMD-SEV och Intel SGX undersöks genom att uppskatta hur komplicerad denna process är. Flera tester genomförs också för att mäta vilken påverkan AMD-SEV har på prestandan av Node-RED. En litteraturöversikt genomförs också för att undersöka potentiella sårbarheter i AMD-SEV och Intel SGX som skulle kunna utnyttjas för att komma åt känslig data i Node-RED. Resultaten från avhandlingen visar att AMD-SEV kan vara användbart för att skydda känslig data i Node-RED när den körs på en molntjänst. AMDSEV är väldigt användarvänlig när Node-RED ska köras. AMD-SEV har en märkbar påverkan på prestandan av processorn och TCP- genomströmning, men för de andra faktorerna som mäts har AMD-SEV ingen större påverkan. Litteraturöversikten finner inga sårbarheter som är tillräckligt farliga för att göra AMD-SEV oanvändbar för att skydda känslig data iNode-RED. Resultaten från avhandlingen visar dock att Intel SGX inte är särskilt användbar för att skydda känslig data i Node-RED när den körs på en molntjänst. Detta är främst för att det är väldigt komplicerat att köra Node-RED i en Intel SGX enklav från en användarvänlighet synpunkt. De flesta av Node-REDs användare skulle finna det för komplicerat att använda Intel SGX för att skydda sin känsliga data. Litteraturöversikten finner inga sårbarheter allvarliga nog för att göra Intel SGX oanvändbar.

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Lwanga, Evans Leonidace. "Feasibility-Study and Developing of a LoRaWAN® IoT Sensor Node." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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The increasing implementation of IoT technologies guarantees a growing number of connected devices. These devices range in features depending on their respective applications. Because of the growing interest and rapid technological advancement of sensor technology, the designing, and deployment of wireless sensor networks has also seen a substantial expansion. This thesis focuses on developing a sensor-node for a LoRaWAN network, which is one of the dominant low-power wide-area network technologies. It does so by taking into account an existing end-device and based on its design and essential performing features, a new design is proposed and implemented. It comprehensively discusses power consumption, size, hardware and firmware development and on how all the mentioned contribute to the overall significance of the end-device. Ultimately, the proposed design is tested by establishing a complete LoRaWAN network to observe and evaluate the performance upon actual deployment.

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Papadakis, Alexander, and Emil Falge. "Sensorbaserad riskbedömning av belastningsbesvär." Thesis, KTH, Data- och elektroteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209011.

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Belastningsskador är idag ett allt större problem i samhället som leder till flera sociala och ekonomiska problem. Tillsammans med en ökande ålder på befolkningen kan belastningsbesvär skapa ännu mer utmaningar i framtiden. Att utöka kunskapen om ergonomi är ett bra sätt att minska risken för att drabbas av belastningsskador. Idag används primärt en visuell bedömning av ergonomi, men varje bedömning är individuella och inte konsistenta. Tillgängligheten av små och billiga Inertial Measurement Unit (IMU) har ökat möjligheten att mäta objektivt istället för subjektivt. I detta exjobb har Texas Instruments SensorTag CC2650 använts som sensor, då den är billig och har många inbyggda sensorer där den 9-axliga rörelsesensorn var den eftersökta. En webbaserad utvecklingsmiljö kallad Node-RED användes för utveckling av en prototyp och sensorn kopplades till en smarttelefon tillsammans med Texas Instruments egna applikation. Data från sensorn skickades från smarttelefonen till webbapplikationen. Mätningar utfördes på en arm för att mäta belastningen på en axel, när handens position passerade axelns höjd finns det risk för belastningsskador efter en längre tid. För att beräkna vinkel av armen användes accelerometer samt gyroskop tillsammans med ett komplementärt filter. Prototypen testades i flera tester, där ena testet undersökte en högre risk t.ex. rita på en tavla samt lägre risk t.ex. papperssortering. Det visade sig att sensorn är kapabel att utföra bedömningar av belastningsriskerna. Men det finns kända begränsningar i form av låg samplingshastighet på 5 Hz (begränsningar i Texas Instruments applikation). Nästa steg för vidare arbete är att lägga till en magnetometer till prototypens sensor fusion och undersöka dess tillförlitlighet.
Musculoskeletal disorders (MSD) is a rising problem in society leading to several socio-economic problems. In combination of the trend of an aging population, MSD can cause even more challenges in the future. Expanding the knowledge of ergonomics is a good way to reduce the risk of stress injury. Today, a visual assessment of ergonomics is primarily used. These observations are individual and not consistent. Availability of cheaper and smaller Inertial Measurement Unit (IMU) has increased the possibility of using objective measurements instead of subjective observations. In this thesis work, the Texas Instruments SensorTag CC2650 was used as a sensor, because it is cheap and has many built-in sensors where the 9-axis motion sensor was the most sought one. A web-based development environment called Node-RED was used to develop a prototype and the sensor was connected to a smartphone along with Texas Instruments own application. The data from the sensor was sent from the smartphone to the web application. Measurements were performed on an arm to measure the load on a shoulder, when the hand's position passed the height of the shoulder it indicates that there is a risk of musculoskeletal disorders after an amount of time. To calculate the angle of the arm, sensor fusion of an accelerometer and a gyroscope were used together with a complementary filter. Developed system was evaluated by series of tasks exposing the shoulder to a higher risk e.g., painting compare to lower risk tasks e.g., paper sorting. It turned out that measurement are useful for assessment of the risk. However, there are known limitations like low sampling rate of 5Hz (due to limitation in the android app from Texas Instruments). Adding magnetometer to the sensor fusion and evaluation of reliability of calculations are the next natural steps for future work.

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Charalampidis, Vasileios. "Real-Time Monitoring System of Sedentary Behavior with Android Wear and Cloud Computing : An office case study." Thesis, KTH, Skolan för teknik och hälsa (STH), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210017.

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Nowadays, prolonged sitting among office workers is a widespread problem, which is highly related to several health problems. Many proposals have been reported and evaluated to address this issue. However, motivating and engaging workers to change health behavior to a healthier working life is still a challenge. In this project, a specific application has been deployed for real-time monitoring and alerting office workers for prolonged sitting. The proposed system consists of three distinct parts: The first one is an android smartwatch, which was used to collect sensor data e.g., accelerometer and gyro data, with a custom android wear app. The second one is an android application, which was developed to act as a gateway for receiving the smartwatch’s data and sending them to IBM Bluemix cloud with MQTT protocol. The final part is a Node-Red cloud application, which was deployed for storing, analyzing and processing of the sensor data for activity detection i.e., sitting or walking/standing. The main purpose of the last one was to return relevant feedback to the user, while combining elements from gaming contexts (gamification methods), for motivating and engaging office workers to a healthier behavior. The system was firstly tested for defining appropriate accelerometer thresholds to five participants (control group), and then evaluated with five different participants (treatment group), in order to analyze its reliability for prolonged sitting detection. The results showed a good precession for the detection. No confusing between sitting and walking/standing was noticed. Communication, storage and analysis of the data was successfully done, while the push notifications to the participants, for alerting or rewarding them, were always accurate and delivered on time. Every useful information was presented to the user to a web-based dashboard accessed through a smartphone, tablet or a PC. The proposed system can easily be implemented at a real-life scenario with office workers. Certainly, there is a lot space for improvement, considering mostly the type of data registered at the system, the method for sitting detection, and the user interface for presenting relevant information.
Numera är förlängt sittande bland kontorsarbetare ett utbrett problem som är väldigt relaterat till flera hälsoproblem. Många förslag har rapporterats och utvärderas för att ta itu med denna fråga. Tydligen är det fortfarande en utmaning att motivera och engagera arbetstagare för att förändra deras hälsobeteende till hälsosammare arbetsliv. I detta projekt har en särskild applikation använts för realtidsövervakning och varnar kontorsarbetare för förlängt sittande. Det föreslagna systemet består av tre olika delar: Den första är en android smartwatch, som användes för att samla sensordata t.ex. accelerometer och gyrodata, med en anpassad android wear app. Den andra är en en androidapplikation som fungerade som en gateway för att ta emot smartwatchens data och skickar datan till IBM Bluemix-Cloud med MQTT-protokollet. Den sista delen är en Node-RED Cloud-Applikation som användes för lagring, analysering och behandling av sensordata för aktivitetsdetektering. Detta innebär sittande eller gå/stående med det huvudsakliga ändamålet att returnera relevant återkoppling till användaren, samtidigt som man kombinerar element från spelkontekster (gamification metoder), för att motivera och engagera arbetarna till ett hälsosammare beteende. Systemet testades först för att definiera lämpliga accelerometertrösklar till fem deltagare (kontroll grupp) och utvärderades sedan med fem olika deltagare (behandingsgrupp) för att analysera dess tillförlitlighet för långvarig sittdetektering. Resultaten visade en bra precession för detektionen. Ingen förvirring mellan att sitta och gå / stående märktes. Kommunikation, lagring och analys av data gjordes framgångsrikt, medan push-meddelandena till deltagarna, för att varna eller belöna dem, var alltid korrekta och levererade i tid. All användbar information presenterades för användaren på en webbaserad dashboard som nås via en smartphone surfplatta eller en dator. Det föreslagna systemet kan enkelt implementeras i ett verkligt scenario med kontorsarbetare. Visst finns det mycket utrymme för förbättring om man tänker på majoriteten av data som registrerats i systemet, metoden för sittande detektion och användargränssnittet för presentering av relevant information.

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Цимбалюк, Ігор Олександрович. "Кіберфізична система розумної теплиці для автоматизації поливу рослин." Бакалаврська робота, Хмельницький національний університет, 2021. http://elar.khnu.km.ua/jspui/handle/123456789/10351.

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Kubů, Jiří. "Elektronický zabezpečovací systém s prvky IoT." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376986.

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The diploma thesis deals with the implementation of own design of an electronic security system with the possibility of extension with the elements of home automation. The control panel is built using the Raspberry Pi3 B+ with a touch screen that communicates with the sensors using Bluetooth Low Energy technology.

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Турчин, Святослав Іванович, and Sviatoslav Turchin. "Розробка та дослідження автоматизованої системи охорони приміщення з функцією віддаленого управління та моніторингу." Master's thesis, Тернопільський національний технічний університет ім. І. Пулюя, Факультет прикладних інформаційних технологій та електроінженерії, Кафедра автоматизації технологічних процесів і виробництв, 2021. http://elartu.tntu.edu.ua/handle/lib/36714.

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Робота виконана на кафедрі автоматизації технологічних процесів і виробництв факультету прикладних інформаційних технологій та електроінженерії Тернопільського національного технічного університету імені Івана Пулюя Міністерства освіти і науки України. Захист відбудеться «23» грудня 2021р. о 9.00год. на засіданні екзаменаційної комісії №22 у Тернопільському національному технічному університеті імені Івана Пулюя.
Мета кваліфікаційної роботи – розробка та дослідження системи охорони приміщення на основі мікрокомп’ютера Raspberry Pi використовуючи протокол бездротової передачі даних Zigbee з функцією віддаленого управління та моніторингу. Розроблена система не має недоліків проаналізованих актуальних систем охорони приміщень. В роботі досліджено дальність сигналу протоколу Zigbee, проведено розрахунок шумів та втрати для лінії. Розроблено та програмно реалізовано алгоритм роботи системи охорони за допомогою мови програмування JavaScript та середовища потокового програмування Node-RED. Розроблена панелі візуалізації системних даних та даних, отриманих від давачів на основі платформи Grafana. Розроблена система розрахована для житлових та офісних приміщень та не підходить для виробничих приміщень, лабораторій, а також установ з пожежонебезпечними та вибухонебезпечними речовинами.
The purpose of the qualification work is to develop and research a security system based on the Raspberry Pi microcomputer using the Zigbee wireless data transmission protocol with remote control and monitoring. The developed system does not have the defects of the analyzed current security systems. The signal range of the Zigbee protocol is investigated, noise and loss for the line are calculated. An algorithm for the operation of the security system using the JavaScript programming language and the Node-RED streaming programming environment has been developed and implemented. Developed panels for visualization of system data and data received from sensors based on the Grafana platform. The developed system is designed for residential and office rooms and is not suitable for industrial rooms, laboratories, as well as institutions with flammable and explosive substances.
Анотація 4 ЗМІСТ 5 ВСТУП 7 1. АНАЛІТИЧНА ЧАСТИНА 9 1.1 Аналіз та класифікація охоронних систем 9 1.2 Аналіз актуальних систем охорони приміщення 12 1.3 Актуальність виконання роботи 17 1.4 Методи вирішення поставленої задачі 18 1.5 Висновки та постановка задач на кваліфікаційну роботу 19 2. ТЕХНОЛОГІЧНА ЧАСТИНА 20 2.1 Дротові технології передачі даних 20 2.2 Бездротові технології передачі даних 24 3. НАУКОВО-ДОСЛІДНА ЧАСТИНА 29 3.1 Розрахунок дальності передачі сигналу протоколу 29 3.2 Розрахунок шумів 35 3.3 Розрахунок втрат у лінії 37 3.4 Розрахунок тривалості роботи системи від джерела безперебійного живлення 39 4. КОНСТРУКТОРСЬКА ЧАСТИНА 40 4.1 Вибір технічного забезпечення 40 4.2 Вибір програмного забезпечення 51 4.3 Аналіз об’єкта охорони 62 4.4 Проектування архітектури програмного забезпечення 66 5. СПЕЦІАЛЬНА ЧАСТИНА 68 5.1 Розробка алгоритму роботи системи охорони 68 5.2 Налаштування мікрокомп’ютера 69 5.3 Налаштування віддаленого сервера 83 5.4 Програмна реалізація алгоритму роботи системи охорони приміщення 89 5.5 Розробка панелі візуалізації системи охорони приміщення 105 6. ОХОРОНА ПРАЦІ ТА БЕЗПЕКА В НАДЗВИЧАЙНИХ СИТУАЦІЯХ 109 6.1 Охорона праці 109 6.2 Правила безпеки при експлуатації обладнання, що проектується 110 6.3 Розрахунок природнього освітлення для проектованої дільниці. 113 6.4 Основні заходи захисту населення і територій 115 6.5 Евакуаційні заходи 117 6.6 Розрахунок евакуаційних шляхів із виробничих приміщень (дільниці) цеху що проектується 119 6.7 Інженерний захист 125 ВИСНОВКИ 128 СПИСОК ВИКОРИСТАНОЇ ЛІТЕРАТУРИ 129 ДОДАТКИ 130

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Hartmann, Jiří. "Správa a automatizace systému vytápění podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445516.

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The aim of this work is to create a unified control and supervision system, SCADA, for controlling the heating and cooling of the company. The system is controlled by UniPi PLC units. Node-RED is used as control software. The user interface is created by an extension "dashboard". For communication between elements using the MQTT protocol. The InfluxDB database is used for data storage. The Grafana tool is used to visualize historical data. The majority of the created system consists of open software. The system is universal, expandable and it is possible to connect it with another system. The system can be used or adapted to similar problems of advanced heating control.

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Maraczek, Patrik. "Návrh a realizace systému zpracování dat z environmentálních čidel v prostředí IoT." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417775.

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The master’s thesis deal with design and realization of measuring station, which process data from environmental sensors in IoT environment. Thesis includes research of sensors, cloud services for IoT, microcontrollers and environmental data available online. Thesis contains detailed procedure for realization of designed system, including code description for microcontrollers STM32W55 and STM32 B-L475E-IOT01A2 Discovery kit, configuration of IBM Watson IoT Platform cloud service and procedure for correct programming of Node-RED application responsible for logic of whole system. Source code, which might be used for simple implementation of designed system, is attached to the master’s thesis.

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Mainza, Chilufya Emma. "A Visual Rapid Prototyping Environment for Smart Home Concepts." Thesis, Malmö högskola, Fakulteten för teknik och samhälle (TS), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20576.

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This research project is part of the Internet of Things and People (IoTaP) project at Malmo ̈ University. The project focuses on the aspects of human-computer interaction in a visual programming environment. Visual programming is becoming increasingly popular in different sector of the IT world. Visual programming allows for novices or non-professional programmers to create systems without any or extensive scripting/coding skills. The research presented in this thesis is on a visual rapid prototyping environment that is founded on an existing smart home platform, and allows for designers and developer to prototype smart home concepts using smart devices. The research methodologies used involve Design Science methods infused with User-Centered Design principles and methods (Participatory Design). The research process involves a series of workshops performed with some of the IoTaP smart home re- searcher. The research process also involves qualitative investigation of existing visual prototyping tools and techniques.A prototype of a visual rapid prototyping environment was used to evaluate the research findings. The evaluation process focused on defining the benefits of a visual rapid prototyping environment and how it can help improve the design and testing process of smart home devices.

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Paťha, Radim. "Rekonstrukce letiště Brno - Tuřany." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225602.

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This diploma thesis describes the reconstruction of the operation parts in the international airport in Brno and proposal of a new arrivals hall. The diploma thesis also shows the specific management of the airport, connection with the existing concourse and design of an appropriate concept of addition of new buildings with currently missing services. The reconstruction deals with the insufficient capacity of the arrivals hall and current bad technical conditions and its inconvenient capacity of arrivals and departures. In this concept, the airport capacity is doubled, up to 2 000 000 passengers per year. This concept, based on axial and mutual synergy of building parts, contains a design of two objects, the central part with public services (clearance, waiting hall, restaurant, control tower, areas for rent, arrivals and departures support), and arrivals hall (inspection, luggage clearance hall). The diploma project is developed in the range of a study. It is based on a previous urban study of the airport in connection to following-up the development of neighboring towns and surrounding area.

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Hamada, Skander. "Design and evaluation of a visual rapid prototyping environment in an existing smart home platform." Thesis, Malmö högskola, Fakulteten för teknik och samhälle (TS), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20267.

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Recent advances in the field of Internet of Things (IoT) are placing its own vision, as a platform of interconnected services and devices, at the heart of the smart home concept. This consolidation promises a new wave of innovative products designed in the open, and in which the user takes center stage starting from the very first steps. Therefore, researchers as well as product designers in these increasingly related fields are now tasked with a more complex mission when investigating user behavior. In this thesis we consider rapid prototyping as the upcoming standard process for investigating user interactions in the future smart home. Although past research contributed with several self-contained solutions (built from scratch) to allow such investigations, no accounts were found tackling the problem from our perspective, in which the focus is on how to enable rapid prototyping in an existing proprietary smart home platform by using open standards, software and hardware. To answer this question, we conducted our research with participation of academic researchers and professional designers in the context of an academic and industrial partnership, in an ongoing smart home research project. We used an approach based on the design science research process in combination with the user centered design (UCD) and agile software development methodologies. During this thesis we performed an end to end design process starting from ideation to implementation and evaluation; an architectural blueprint was proposed and a working prototype of our visual smart home rapid prototyping environment (SHRPE) was implemented and tested. The obtained results demonstrate the feasibility of enabling visual rapid prototyping capabilities in an existing smart home platform, by using the system integration process to introduce available open standards, software and hardware tools into the platform. In addition, evaluation results of user testing confirmed that using UCD to iteratively capture user needs in such complex context is a solid approach.

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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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Tai, Shuo-Hung, and 戴碩宏. "Node-RED-based and IoT-enabled Chatbot Platform." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8g8p6y.

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碩士
國立臺灣海洋大學
資訊工程學系
107
Although there are many chatbot building tools at present, most of these services do not provide comprehensive support for the integration of external systems and IoT (Internet of Things) devices and the control of conversational flows to coordinate multiple users in various roles. To address above issue, this study proposes a Node-RED-based and IoT-enabled Chatbot Platform, referred to as NICP, to provide multiple Node-RED nodes for users to visually create and manage conversational flows with external systems and IoT devices. Finally, five application cases, including monitoring device status, Beacon switch light, receiving external system notification, imitation general infrared remote control and smart restaurant to validate that NICP is feasible and useful in real- world applications.

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Torres, Diogo Luis Rey. "Increasing the feedback on IoT development in Node-RED." Master's thesis, 2020. https://hdl.handle.net/10216/128964.

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Torres, Diogo Luis Rey. "Increasing the feedback on IoT development in Node-RED." Dissertação, 2020. https://hdl.handle.net/10216/128964.

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Zhang, Yu-Jie, and 張裕傑. "Constructing The Internet of Thing with Node-RED ─Home Monitoring System." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/bg73nm.

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碩士
國立彰化師範大學
工業教育與技術學系
107
The purpose of this thesis is to design home monitoring system that integrates the software of home electric appliance, disaster prevention, and monitorig equipment with a simple visual interface, and apply Node-RED's visual development environment to constructed the system, with simple graphical programming interface for user friendly setting of environmental parameters, and can achieve the demand of the customized interface. This thesis applies Message Queuing Telemetry Transport (MQTT) transport protocol installed on a personal computer to exchange data with the home device to attain the publish/subscribe model for ensure data transmission stability with more resource saving. Then, MySQL's database management is to access home device data, improves statistics and analysis of environmental data, and use the HyperText Transfer Protocol (HTTP) to the government open data platform to obtain information and display in the Node-RED web interface. Since Node-RED uses a web interface, it can employ various devices to open web browsers, such as computers, smart phones, etc., to remotely monitor Node-RED programs. In terms of alarms, the most important feature is the use of camera programs to automatically detect displacement and take photos upload the server. Simultaneously, Node-RED connects IBM Watson's cloud image recognition service, and the results are displayed on the webpage and published to the personal LINE account or group.

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Amaro, Paulo Almeida. "Monitorização e controlo remoto de uma instalação solar térmica." Master's thesis, 2019. http://hdl.handle.net/10316/98271.

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Dissertação de Mestrado Integrado em Engenharia Mecânica apresentada à Faculdade de Ciências e Tecnologia
Atualmente, enfrentam-se desafios ao nível da gestão sustentável dos recursos energéticos em edifícios. Neste sentido, face à progressiva necessidade de desenvolvimento das tecnologias limpas de climatização, este estudo visa contribuir para a gradual melhoria dos sistemas térmicos solares. A instalação construída nesta dissertação, provém da transformação de uma instalação solar térmica tradicional, integrando-a ao conceito tecnológico de IoT. Com a substituição e adição de novos componentes, como sensores de temperatura, pressão e caudal, permitiu-se a captação de um relevante número de informações relativas aos estados energéticos dos dois fluidos presentes no sistema, o de acumulação térmica e o de trabalho. No circuito hidráulico primário, foi inserida uma bomba de circulação, com um motor de velocidade variável, de forma a haver um controlo sobre o caudal de fluido térmico. Toda a monitorização da estrutura, proveniente dos sensores adicionados, é efetuada, remotamente, a partir de uma interface gráfica, criada a partir do software Node-RED. Esta interface é, igualmente, responsável pelo controlo remoto sobre a velocidade da bomba de circulação, assim como pela ativação da resistência elétrica no interior do termoacumulador, pertencente ao sistema de aquecimento complementar. Toda a comunicação remota é executada via MQTT, entre o servidor e os microcontroladores ESP32. Este estudo apresenta os procedimentos inerentes ao processo de implementação dos componentes hidráulicos e elétricos, assim como, as ferramentas de hardware e software utilizadas. Simultaneamente, é feita uma análise dos rendimentos do coletor, das perdas de calor nas tubagens e a simulação da estratificação de temperaturas no interior do termoacumulador, a partir do SolidWorks Flow Simulation.
Energy resources in buildings face challenges at the level of sustainable management. In this sense, because of the increasing need to develop clean climatisation technology, this study aims to contribute to the gradual improvement of solar thermal systems.The installation constructed in this dissertation, comes from the transformation of a traditional solar thermal installation, integrating it to the technological concept of IoT. With the replacement and addition of new components, such as temperature, pressure and flow sensors, it was possible to obtain a relevant number of information regarding the energy states of the two fluids present in the system, thermal accumulation and working fluids. In the primary hydraulic circuit, a circulation pump was inserted, with a variable speed motor, to have control over the flow of thermal fluid.All structure monitoring, from the added sensors, is done remotely from a graphical interface created from Node-RED software. This interface is also responsible for the remote control of the speed of the circulation pump, as well as the activation of the electric resistance inside the heater, belonging to the heating system — all remote communication performed via MQTT, between the server and the ESP32 microcontrollers.This study presents the procedures inherent to the implementation process of hydraulic and electrical components, as well as the hardware and software tools used. Simultaneously, it presents an analysis of collector yields, heat losses in the piping and the simulation of temperature stratification inside the heater performed with SolidWorks Flow Simulation.

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Amaro, Paulo Almeida. "Monitorização e controlo remoto de uma instalação solar térmica." Master's thesis, 2019. http://hdl.handle.net/10316/98471.

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Dissertação de Mestrado Integrado em Engenharia Mecânica apresentada à Faculdade de Ciências e Tecnologia
Atualmente, enfrentam-se desafios ao nível da gestão sustentável dos recursos energéticos em edifícios. Neste sentido, face à progressiva necessidade de desenvolvimento das tecnologias limpas de climatização, este estudo visa contribuir para a gradual melhoria dos sistemas térmicos solares. A instalação construída nesta dissertação, provém da transformação de uma instalação solar térmica tradicional, integrando-a ao conceito tecnológico de IoT. Com a substituição e adição de novos componentes, como sensores de temperatura, pressão e caudal, permitiu-se a captação de um relevante número de informações relativas aos estados energéticos dos dois fluidos presentes no sistema, o de acumulação térmica e o de trabalho. No circuito hidráulico primário, foi inserida uma bomba de circulação, com um motor de velocidade variável, de forma a haver um controlo sobre o caudal de fluido térmico. Toda a monitorização da estrutura, proveniente dos sensores adicionados, é efetuada, remotamente, a partir de uma interface gráfica, criada a partir do software Node-RED. Esta interface é, igualmente, responsável pelo controlo remoto sobre a velocidade da bomba de circulação, assim como pela ativação da resistência elétrica no interior do termoacumulador, pertencente ao sistema de aquecimento complementar. Toda a comunicação remota é executada via MQTT, entre o servidor e os microcontroladores ESP32. Este estudo apresenta os procedimentos inerentes ao processo de implementação dos componentes hidráulicos e elétricos, assim como, as ferramentas de hardware e software utilizadas. Simultaneamente, é feita uma análise dos rendimentos do coletor, das perdas de calor nas tubagens e a simulação da estratificação de temperaturas no interior do termoacumulador, a partir do SolidWorks Flow Simulation.
Energy resources in buildings face challenges at the level of sustainable management. In this sense, because of the increasing need to develop clean climatisation technology, this study aims to contribute to the gradual improvement of solar thermal systems.The installation constructed in this dissertation, comes from the transformation of a traditional solar thermal installation, integrating it to the technological concept of IoT. With the replacement and addition of new components, such as temperature, pressure and flow sensors, it was possible to obtain a relevant number of information regarding the energy states of the two fluids present in the system, thermal accumulation and working fluids. In the primary hydraulic circuit, a circulation pump was inserted, with a variable speed motor, to have control over the flow of thermal fluid.All structure monitoring, from the added sensors, is done remotely from a graphical interface created from Node-RED software. This interface is also responsible for the remote control of the speed of the circulation pump, as well as the activation of the electric resistance inside the heater, belonging to the heating system — all remote communication performed via MQTT, between the server and the ESP32 microcontrollers.This study presents the procedures inherent to the implementation process of hydraulic and electrical components, as well as the hardware and software tools used. Simultaneously, it presents an analysis of collector yields, heat losses in the piping and the simulation of temperature stratification inside the heater performed with SolidWorks Flow Simulation.

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Exner, Linus, and Robin Kalla. "En Jämförande Studie Av Hur Två Back-Endlösningar I LoRaWAN-Nätverk Skiljer sig i Skalbarhet." Thesis, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-54248.

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Syftet med det här arbetet är att undersöka hur överföringstid skiljer sig i förhållande tillskalbarhet mellan två back-endlösningar i LoRaWAN. Lösningarna är Node-RED ochChirpstack. Studien genomförs med hjälp av metoderna experiment och fallstudie. Iexperimentet utfördes ett t-test för att svara på om nollhypotesen kan förkastas eller inte.Resultatet visar att nollhypotesen inte kunde förkastas, och att det inte är någon skillnadi skalbarhet. Bortsett från t-testet visar resultaten att Chirpstack skalar sämre änNode-RED vid fyra eller fler tillagda enheter. Slutsatsen är däremot att skillnaden ärtillräckligt liten för att bedömas obetydlig för val av back-endlösning. Studien ärbegränsad till sju uppkopplade LoRa-enheter.
The purpose of this study is to investigate how transfer time differs in relation toscalability between two back-end solutions in LoRaWAN. The solutions are Node-REDand Chirpstack. The study is carried out using the methods experiment and case study.In the experiment, a t-test was performed to answer whether the null hypothesis can berejected or not. The results show that the null hypothesis could not be rejected, and thatthere is no difference in scalability. Apart from the t-test, the results show that Chirpstackscales worse than Node-RED at four or more added LoRa-units. The conclusion,however, is that the difference is small enough to be considered insignificant for thechoice of back-end solution. The study is limited to seven connected LoRa units.

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Santos, Rafael Jorge Galvão. "Remodelação e colocação em funcionamento de uma instalação solar térmica didática." Master's thesis, 2018. http://hdl.handle.net/10316/86070.

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Dissertação de Mestrado Integrado em Engenharia Mecânica apresentada à Faculdade de Ciências e Tecnologia
Os sistemas de energia renováveis estão cada vez mais presentes na sociedade. Torna-se assim fundamental para o seu estudo desenvolver ferramentas educacionais que não só ilustrem os princípios básicos do seu funcionamento como também permitam aos alunos testar soluções tecnológicas inovadoras. Este projeto de dissertação tem como finalidade a remodelação e colocação em funcionamento de uma instalação solar didática e o desenvolvimento de um sistema de controlo e monitorização remoto para a mesma, apto para ser utilizado em qualquer tipo de instalação solar térmica. O processo de remodelação da instalação passou pela substituição dos componentes deteriorados com o tempo e a adição de novos componentes que possam melhor o funcionamento da mesma. O controlo e monitorização remoto é feito à distância, no software Node-RED, instalado num computador (PC) do tipo Raspberry PI, que recebe e transmite os dados de e para os sensores e atuadores instalados na instalação solar térmica. Os sensores e atuadores são controlados por uma placa Arduino e os dados são transmitidos recorrendo a um módulo HC12 com comunicação por radiofrequência. Atualmente a instalação e o sistema de monitorização e controlo remoto podem ser utilizados no apoio à lecionação de matérias que envolvam os sistemas solares térmicos, e o sistema de monitorização e controlo pode ser empregue em instalações solares térmicas domésticas ou industriais, com as devidas adaptações.
Renewable energy systems are more and more present in the society which makes the development of tools that help study them and that can improve the efficiency of them fundamental. This dissertation project has the purpose of remodelling and start up a didactic solar installation and the development of a remote control and monitoring system for it, suitable for use in any type of solar thermal installation. The process of remodelling the installation went from replacing the components that deteriorated with the time to the addition of new components that can increase the efficiency of the installation. The remote monitoring and control process is done in the software Node-RED that is installed on a Raspberry PI computer that receives and transmits the data to and from the sensors and the electronic components that are installed in the thermal installation which are controlled by a microcontroller installed on an Arduino board. Through the sensors it is possible to obtain several temperatures throughout the installation, several pressures in the solar circuit, the flow of the solar circuit, the solar radiation incident on the solar collectors and other data that make the installation more educational. Currently the installation and the remote monitoring and control system can be used to support the teaching of materials involving solar thermal systems and the system can be used in domestic hot water systems or industrial hot water installations.

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Ferreira, Danny Dias. "Supervisão e controlo remoto da iluminação e ar comprimido, em ambiente industrial." Master's thesis, 2019. http://hdl.handle.net/10773/29143.

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Ao longo dos anos tem-se assistido à crescente consolidação do paradigma da Internet of Things em ambiente industrial, tendo sido exatamente neste âmbito que se desenvolveu o Projeto descrito no presente documento. Com vista à promoção da eficiência do consumo dos recursos energéticos utilizados na Atena - Automação Industrial Lda, procedeu-se a um levantamento dos principais desperdícios de energia associados às redes de iluminação e de ar comprimido nesta empresa. A partir deste levantamento identificaram-se as necessidades mais prementes de intervenção que guiaram o desenvolvimento dos trabalhos efetuados. Neste sentido, e face à realidade encontrada, reconheceu-se como essencial criar um sistema de controlo e monitorização remotos da iluminação e do ar comprimido nas suas instalações. Assim, concebeu-se um sistema modular com diferentes módulos a desempenhar funções específicas, comunicando entre si através do protocolo MQTT. Relativamente à iluminação, implementou-se uma arquitetura de controlo por zonas com base em níveis (thresholds) de fluxo luminoso configuráveis. Os horários de funcionamento do sistema de iluminação são também programáveis por zona. Quanto à rede de ar comprimido, apenas se procedeu à monitorização dos consumos de ar, com possibilidade de incorporação de uma electroválvula com controlo remoto para cessar o fornecimento de ar em caso de necessidade. A modularidade dos componentes sensoriais e de controlo com comunicação sem fios permitiu contornar a necessidade de cablagens ao longo da instalação fabril, permitindo de igual modo a escalabilidade rápida do sistema. Por último, procedeu-se ainda ao estudo da aplicabilidade de algoritmos de machine learning à deteção humana nas zonas de escritórios dentro da empresa, tendo em vista a otimização da iluminação nestas áreas. Aplicaram-se os algoritmos Suport Vector Machine (SVM) e Decision Trees (DT). A implementação de todo o projeto assenta sobre a plataforma Node-Red que desempenha o papel de servidor central onde a informação é processada, sendo ainda responsável pela criação da interface acessível remotamente (juntamente com os controlos manuais). Concluindo, a solução implementada apresentou um bom desempenho, cumprindo as funções para as quais foi desenvolvida. A interface remota intuitiva permite consultar o estado do sistema e configurar os parâmetros que o utilizador considere necessários. O baixo custo aliado à fácil instalação fazem desta uma solução atrativa que poderá ser implementada noutras instalações, no meio industrial e residencial.
Throughout the years, the paradigm of the Internet of Things has been gaining strength in the industrial environment. It was precisely in this context that the project described in this thesis was developed. In order to promote an efficient consumption of energy resources in Atena - Automação Industrial Lda, a survey was carried out to determine the main energy wastes associated with the company’s lighting and the compressed air system network. From the data collected, it was possible to identify the most urgent needs of intervention on which the development of the work performed was based upon. As a result, and considering the reality encountered, it was ascertained as essential to create a remote control and monitoring system for lighting and compressed air in its facilities. Thus, a modular system with different modules performing specific functions and communicating with each other via the MQTT protocol was designed. Regarding lighting, an architecture that allows us to control various zones was implemented based on configurable luminous thresholds. The operating hours of the lighting system can also be programmed by zone. Concerning the compressed air network, only the air consumptions were monitored, with the possibility of incorporating a solenoid valve controlled remotely to cease the air supply, if needed. The modularity of the sensing and control components with wireless communication made it possible to bypass the need for wiring throughout the plant, while allowing for rapid system scalability. Finally, we also studied the applicability of machine learning algorithms to human detection in office areas within the company in order to optimize lighting in these areas. Support Vector Machine (SVM) and Decision Trees (DT) algorithms were applied. The entire project was implemented based on the Node-Red platform, which serves as the central server where the information is processed. It is also responsible for creating the remotely accessible interface (along with manual controls). In conclusion, the implemented solution worked out, fulfilling the functions for which it was developed. The intuitive remote interface allows us to check the system status and to configure any parameters we deem necessary. The low cost combined with the easy installation make this an attractive solution to implement in other buildings, both industrial and residential.
Mestrado em Engenharia Mecânica

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Almeida, Rúben Filipe Rocha. "Proposta de um novo equipamento para a marcação e leitura para a Vista Alegre, rastreabilidade da produção ao cliente final." Master's thesis, 2020. http://hdl.handle.net/10773/32121.

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No advento da Indústria 4.0 a rastreabilidade consolidou o seu lugar como ferramenta indispensável à otimização dos processos e à tomada de decisão. Na transição para este novo paradigma, muitas empresas têm de modificar os processos internos e o equipamento que possuem sob pena de não se conseguirem adaptar às novas exigências do mercado e da indústria. Este é um desafio recorrente em indústrias centenárias como é o caso da Vista Alegre. O presente trabalho é um protótipo de uma solução pensada para a rastreabilidade das peças de uma linha de produção na unidade fabril da Vista Alegre, em que é desenvolvido um sistema invisível de leitura de códigos. É ensaiada a leitura das marcações, o tratamento e armazenamento da informação ao longo das fases de produção e a visualização dos dados. São exploradas e desenvolvidas tecnologias para leitura de códigos, criação e utilização de bases de dados, criação de dashboards e agilização dos fluxos de informação. A tecnologia desenvolvida permite abrir portas para novos desenvolvimentos nas técnicas de rastreabilidade industrial.
In the advent of Industry 4.0, traceability has consolidated its place as an indispensable tool for process optimization and decision-making. In the transition to this new paradigm, many companies must modify the internal processes and equipment they have under penalty of not being able to adapt to the new demands of the market and industry. This is a recurring challenge in centuries-old industries such as Vista Alegre. The present work is a prototype of a solution designed for the traceability of the products of a production line in the Vista Alegre manufacturing unit, in which an invisible code reading system is developed. The reading of the markings, the processing and storage of the information throughout the production phases and the visualization of the data are tested. Technologies are explored and developed for reading codes, creating and using databases, creating dashboards and information flow support. The technology developed allows to open doors to new developments in industrial traceability techniques.
Mestrado em Engenharia Mecânica

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Santos, Samira Elaine Lino dos. "Sistema de supervisão e controlo para produção agrícola em Aquaponia." Master's thesis, 2021. http://hdl.handle.net/10198/23682.

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Mestrado de dupla diplomação com a UTFPR - Universidade Tecnológica Federal do Paraná
Aquaponics is an agricultural production technique with the potential to mitigate social and environmental problems in the coming decades, such as scarcity of water resources, climate change and increased hunger and food insecurity. Its differential, compared to other traditional agricultural techniques, is its capacity to produce fish and plants in a closed environment of recirculation of water and nutrients. Due to the complexity of monitoring the different climatic and environmental parameters involved in this method of cultivation, it becomes dependent on the application of information technologies. Thus, the present work intends to contribute with solutions based on IoT technologies for the monitoring and control of agricultural processes in aquaponics. Through the Raspberry Pi, Arduino and Node-RED, a control and supervision system was developed which, in addition to real-time updating of the measured environmental variables, sends an email notification to the producer in the event of failures and abnormalities.
A aquaponia é uma técnica agrícola de produção com potencialidade de mitigar os problemas sociais e ambientais das próximas décadas, como escassez dos recursos hídricos, mudanças climáticas e aumento da fome e insegurança alimentar. Seu diferencial, comparada às outras técnicas agrícolas tradicionais, é a sua capacidade de produção de peixes e plantas em um ambiente fechado de recirculação de água e nutrientes. Devido à complexidade de monitoramento dos diversos parâmetros climáticos e ambientais envolvidos neste método de cultivo, o mesmo se torna dependente da aplicação de tecnologias da informação. Assim, o presente trabalho pretende contribuir com soluções baseadas em tecnologias IoT para o monitoramento e controlo de processos agrícolas em aquaponia. Através do Raspberry Pi, Arduino e Node-RED, foi desenvolvido um sistema de controlo e supervisão que, além da atualização em tempo real das variáveis ambientais medidas, o mesmo envia notificação por e-mail ao produtor no caso em que ocorram falhas e anormalidades no sistema.

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Marques, Catarina Lousa. "Theoretical Analysis of a Potentiostat for Studying Microbial Fuel Cells." Master's thesis, 2021. http://hdl.handle.net/10400.6/11889.

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For many years, Microbial Fuel Cells (MFCs) have been developed as alternatives for generating electricity via the oxidation of organic matter by bacteria. Even though individual MFC units are low in power, significant progress has been achieved in terms of MFC material and configurations, enabling them to generate higher output levels. Nonetheless, MFCs are are mainly produced using conventional laboratory methods that can take up to several months to bring the MFCs to their maximum power aptitudes. In this dissertation, an approach to use a low-cost potentiostat was developed in order to study MFCs comportament. Initially, the work focused on establishing an interface on Node-RED and an interconnection between the living cells in the MFC. In order to achieve that, was used a mbed NXP LPC1768 microcontroller to communicate with the interface created and also with the potentiostat. To fully explore the potentiostat, were studied several electrochemical tests possible to execute in the MFC reactor and the expected results. Finally, is possible to say that the potentiostat is fast, produces low noise and is a versatile instrument, very promising in the study of this emerging renewable energy like is MFCs.
Há vários anos, que as Células de Combustível Microbianas têm sido desenvolvidas como alternativas para gerar eletricidade através da oxidação da matéria orgânica por bactérias. Embora as unidades individuais destas células tenham um baixo consumo de energia, tem-se alcançado um progresso significativo em termos de materiais e configurações das células, permitindo-lhes gerar níveis de produção mais elevados. No entanto, estas células são produzidas principalmente através de métodos de laboratório convencionais que podem levar vários meses até que as células alcancem as suas aptidões de potência máxima. Nesta dissertação, uma abordagem para o uso de um potencióstato de baixo custo foi desenvolvida para estudar o comportamento das células de combustível microbianas. Inicialmente, o trabalho concentrou-se em estabelecer uma interface no Node-RED e fazer a ligação entre as células vivas dos reatores. Para tal, foi utilizado o microcontrolador mbed NXP LPC1768 para comunicar com a interface criada e também com o potencióstato. De forma a explorar totalmente o potencióstato, estudamos vários testes eletroquímicos possíveis de executar no reator das células de combustível microbianas e os resultados esperados. Por fim, pode-se dizer que o potencióstato é rápido, produz baixo ruído e é um instrumento versátil, muito promissor no estudo desta energia renovável emergente como são as células de combustível microbianas.

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Santos, André Machado. "Monitorização e controlo do funcionamento de moldes de injeção." Master's thesis, 2020. http://hdl.handle.net/10400.8/5332.

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O presente trabalho tem como objetivo a conceção e desenvolvimento de um produto que permita a monitorização e controlo do funcionamento de moldes de injeção. A necessidade desse produto surgiu através das empresas que apoiaram o seu desenvolvimento, nomeadamente, a Portutecmo e a PTM Moldes. Estas empresas pretendiam um equipamento leve e versátil, que permitisse interagir com os principais sensores e atuadores presentes nos moldes de injeção, evitando assim a aquisição de equipamentos dispendiosos, específicos para cada situação. De forma a responder às necessidades encontradas, optou-se por desenvolver, o Smart Checker, um equipamento modular com capacidade para 8 módulos e com 4 tipos de módulos desenvolvidos até ao momento. Cada um dos módulos desenvolvidos possui um Arduíno Micro, que comunica por I2C com o Raspberry Pi presente no equipamento. Por sua vez, o Raspberry Pi através do software Node-RED, interage com o utilizador através de uma página web. Os 4 módulo existentes permitem ler temperaturas de 6 termopares; ler o caudal de 6 caudalímetros; ler o estado de 6 sensores de sinal digital e atuar de forma manual ou sequencial um bloco de electroválvulas pneumáticas que aciona 8 bicos de injeção valve gate. Para auxiliar estes módulos, foram também desenvolvidos os acessórios necessários, nomeadamente o bloco de electroválvulas pneumáticas, dois caudalímetros com filtro e circuito de limpeza e dois cabos para ligação às máquinas de injeção utilizadas frequentemente. Este projeto abordou diversas áreas tecnológicas, passando pelo desenvolvimento de produto, projeto e fabrico de PCBs, desenvolvimento de firmware, desenvolvimento de software e o projeto e fabrico da caixa que junta e protege todos os componentes do Smart Checker. Após o desenvolvimento do produto, foram realizados testes em ambiente real, onde se verificou o funcionamento do produto e se detetaram algumas situações a corrigir e novas funcionalidades que serão implementadas futuramente.

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Lourenço, Daniel Armando Gonçalves. "Posto de trabalho de baixo custo e altamente digitalizado." Master's thesis, 2021. http://hdl.handle.net/10773/31360.

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A transformação digital é um termo cada vez mais abordado no aperfeiçoamento da produção na indústria de manufactura, e no aumento do desempenho e rendimento na elaboração dos produtos, pois hoje em dia é um termo que representa impulsionamento das receitas e está directamente relacionado com competitividade das empresas no mercado, graças aos avanços tecnológicos que proporciona. A implementação deste termo em inúmeros tipos de empresas advém do surgimento da Indústria 4.0 que permitiu apresentar ao mundo tecnologias que iriam revolucionar não só o mundo indústria e também marcar a rotina do ser humano, de modo permanente com as suas inovações. No entanto, estas tecnologias continuam a evoluir e a diversificar-se para serem adaptadas a casos específicos, de modo a alcançar melhores resultados e minimizar ao máximo os distúrbios e contrariedades que se verificam na rotina da manufactura. Deste progresso sucessivo surgiu um novo conceito de tecnologias na indústria denominado Internet of Things, um conceito cuja definição e capacidades ainda se encontram em evolução, e cujos limites ainda estão por averiguar. Neste relatório de projecto foi usado esta nova tecnologia em desenvolvimento para criar uma ferramenta que permite a monitorização de produção. Esta ferramenta foi concebida com o intuito de ser de baixo custo, usando um sensor para a aquisição de dados e um dispositivo equipado com a tecnologia Internet of Things, Raspberry Pi, para processar os dados. Para efectuar as várias conexões entre o dispositivo e o Bosch IoT Suite, foi utilizado o aplicativo Node-Red, que utiliza como protocolo de comunicação o MQTT. Para terminar, como plataforma IoT foram subscritos os serviços disponibilizados pelo Bosch IoT Suite.
Digital Transformation is a term that has been increasingly addressed in the improvement of production on the manufacturing industry, performance increase and efficiency during the products elaboration, since nowadays, it’s a term that stimulate revenues and is directly related to the competitiveness of the companies on the market, due to the technological advances provided. The implementation based on this term in innumerable sorts of enterprises came from the emergence of the 4.0 Industry, which enabled the delivery of technologies that would revolutionize not only the industry world, but also would leave a permanent impact on the human routine, worldwide, with these new inovations. However, these technologies continue evolving and being diversified in order to be adapted on more specific fields so it is possible to reach better results and reduce all kinds of frequent disturbances along with setbacks on the manufacturing routine. From this continuous progress a new industry technology concept emerged, the Internet of Things, a concept whose definition and capacities are still poorly defined, and whose limits are yet to be found. On this project report this upcoming technology is used to develop and create a tool that enables production monitoring. This tool was conceived with the purpose of being low-cost, employing a sensor for the collection of data, a device equiped with the Internet of Things technology, which is a Raspberry Pi with the purpose to process and edit the data. To establish the conections between the device and Bosch IoT Suite, Node-Red was the application employed, which is equipped with MQTT communication protocol. In conclusion, as a IoT Platform, all the used subscribed services are provided from Bosch IoT Suite.
Mestrado em Engenharia Mecânica

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(11191893), Jose Alejandro Solorio Cervantes. "Smart Sensing System for a Lateral Micro Drilling Robot." Thesis, 2021.

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The oil and gas industry faces a lack of compact drilling devices capable of performing horizontal drilling maneuvers in depleted or abandoned wells in order to enhance oil recovery. The purpose of this project was to design and develop a smart sensing system that can be later implemented in compact drilling devices used to perform horizontal drilling to enhance oil recovery in wells. A smart sensor is the combination of a sensing element (sensor) and a microprocessor. Hence, a smart sensing system is an arrangement that consists of different sensors, where one or more have smart capabilities. The sensing system was built and tested in a laboratory setting. For this, a test bench was used as a case study to simulate the operation from a micro-drilling device. The smart sensing system integrated the sensors essential for the direct operational measurements required for the robot. The focus was on selecting reliable and sturdy components that can handle the operation Down the Hole (DTH) on the final lateral micro-drilling robot. The sensing system's recorded data was sent to a microcontroller, where it was processed and then presented visually to the operator through a User Interface (UI) developed in a cloud-based framework. The information was filtered, processed, and sent to a controller that executed commands and sent signals to the test bench’s actuators. The smart sensing system included novel modules and sensors suitable for the operation in a harsh environment such as the one faced in the drilling process. Furthermore, it was designed as an independent, flexible module that can be implemented in test benches with different settings and early robotic prototypes. The outcome of this project was a sensing system able to provide robotic drilling devices with flexibility while providing accurate and reliable measurements during their operation.

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Dissertations / Theses on the topic 'Node-RED'

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