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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
311

Kostnadseffektiv enhet för fjärrövervakning av inbyggda system

Byström, Henrik, Rickardsson, Filip January 2013 (has links)
Företag kan ha produktionsanläggningar på ett antal olika platser runt om i världen. Den industriella utrustningen som används i anläggningarna innehåller ofta någon form av inbyggt system som kräver underhåll eller övervakning vid jämna mellanrum. Utrustningen kan vara tekniskt avancerad och därför måste underhållet skötas av en servicetekniker. Mindre leverantörer av industriella utrustningar har inte alltid möjlighet att ha serviceorganisationer i varje land då detta innebär en extra kostnad. Det hade därför varit fördelaktigt med ett kompletterande kommunikationssystem som fungerar som en mellanhand mellan servicetekniker och målsystem som kan befinna sig på skilda platser.Kommunikationssystemet som tagits fram i detta projekt fungerar som en typ av fjärrövervakning där det är möjligt att utföra fjärravläsning samt ändra inställningar på distans. Syftet med examensarbetet är därför att utveckla en enkel och kostnadseffektiv enhet avsedd för fjärrövervakning av utrustningar innehållande inbyggda system.Examensarbetet resulterade i en kostnadseffektiv prototyp av en övervakningsenhet, baserad på enkortsdatorn Raspberry Pi, som kan kopplas in till ett målsystem när service behövs. I projektet testades kommunikationssystemet mot ett målsystem baserat på enkortsdatorn Arduino Uno. Övervakningsenheten har möjlighet att kommunicera med målsystemet via tre olika sätt: RS-232, JTAG samt kommunikation via GPIO-pinnar. Dessa kommunikationssätt kan användas till olika ändamål då kommunikationssätten är användbara för olika tillämpningar och kan därmed möjliggöra implementering av många olika funktioner. Kommunikationssätten är dessutom välanvända och passar till många olika målsystem. Servicetekniker har två tillgängliga användargränssnitt för att interagera med övervakningsenheten. Det primära användargränssnittet är ett webbgränssnitt där utdata från målsystemet kan övervakas samt att det finns möjlighet att ställa in olika inställningar. Det andra användargränssnittet består av fjärrstyrning av övervakningsenheten där funktioner finns för att utföra felsökning (eng. debugging) samt möjlighet att ladda in ett nytt program på målsystemet. / Companies can have production plants in a variety of locations around the world. The industrial equipment used in facilities often includes some form of built-in systems which require maintenance or monitoring at regular intervals. The equipment can be technologically advanced and therefore maintenance must be performed by a service technician. Smaller suppliers of industrial equipment are not always able to have service departments in each country, which often means an additional cost. It would therefore be advantageous with an additional communication system that acts as an intermediary between the service technician and the target system that can be located in different places.The communication system developed in this project acts as a kind of remote monitoring where it is possible to perform remote reading, and change different settings remotely. The purpose of this study is therefore to develop a simple and cost effective device designed for remote monitoring of equipment containing embedded systems.The study resulted in a cost-effective prototype, based on the single board computer Raspberry Pi, of a monitoring device that can be connected to a target system when service is needed. The communication system was tested throughout the project on a target system based on the single board computer Arduino Uno. The monitoring unit is able to communicate with the target system via three different ways: RS-232, JTAG and communication via GPIO-pins. These communication methods can be used for different purposes as these communication methods are useful for various applications and can thus enable implementation of many different functions. The communication methods are also widely used and suitable for many different target systems. Service technicians have two available user interfaces for interacting with the monitoring unit. The primary user interface is a web interface where the output of the target system can be monitored and that there is the possibility to set different settings. The second interface is remote controlling of the monitoring device which has functions to perform debugging and the ability to flash a new program into the target system.
312

Testing of a smart transducer network, based upon open-source technology

Beckius, Mathias January 2016 (has links)
Arduino Verkstad AB, the Swedish branch of Arduino, has developed a prototype that demonstrates a smart transducer network with a self-configurable communication protocol. The protocol is called I2C+, since it is based upon I2C. One of the possible areas of application is the EU funded PELARS project, where Arduino Verkstad is responsible for creating educational tools. Within the PELARS project, a maximum number of transducer modules is expected to be 20 modules, connected at the same time.The aim of this thesis was to create a testing tool and a test suite for the prototype system, which later could be used and also further developed by engineers at Arduino Verkstad, during the development of the final product. Though the testing tool was primarily needed for this particular system, it was considered desirable if it could be reused for similar projects as well.It was relevant to create the testing tool and the test suite in order to analyse the validity of the I2C+ protocol, which might become Arduino's future standard in connectivity between smart transducers. The performance of the I2C+ protocol also affects the implementation of the smart transducer system within the PELARS project.This work has been guided by a specification of requirements and also by a systematic top-down approach of solving several subproblems. A testing tool and a test suite was created, which serves as a proof-of-concept. The testing tool has a modular design, which makes the solution reusable for other purposes. The testing tool and the test suite was validated by using Arduino's prototype as a test object. Although only 10 transducer modules was used during these tests, the results showed that the prototype does not perform well for a growing number of modules. Therefore, improvement of the system and further testing is advised.
313

Using Open Source for Rapid Prototyping of Proprietary Systems

Drotth, Andreas, Alatia, Soded January 2016 (has links)
Having a successful innovation process is crucial for any competitive enterprise. Being able to rapidly prototype and validate new concepts can reducethe time and cost from the specification-phase to a final product. This thesisinvestigates how open source hardware and software can accelerate the ideavalidation of proprietary systems.The development of a microcontroller shield and open-source-based softwareis described and how this artifact can take advantage of the open source community, thus making innovation more flexible and concept validation quicker.This thesis followed a five-stage development process, and is evaluated withtwo controlled experiments.The resulting artifact was shown through these controlled experiments thatit was able to improve the idea validation of proprietary systems. The resultof the controlled experiments showed that a new concept could be validatedfaster.
314

Automated Solar Panel Shield : An IoT Approach

Rangannagari, Raghu Vamsi Sai, Deverakonda, Sri Phani January 2022 (has links)
Context: Solar panels are exposed to different weather conditions and get damaged. Sand storms and hail storms could cause serious damage. However, they need to be used for human survival in almost every harsh condition possible. Objectives: Our goal is to design and create a working prototype of an automated solar panel shield. The meteorological conditions around the solar panels should be monitored, including wind speed, air quality, rain, and humidity. The shield automatically protects the solar panel based on the sensor data. The solar shield should even protect panels from harm from small animals. Methods: A microcontroller Arduino Uno is used. Various sensors are used to monitor multiple weather conditions, including an ultrasonic sensor, a rain sensor, a smoke sensor, and a custom-built anemometer. Based on daylight status, the stepper motor is activated to roll up the protective cover over the solar panel. Results: The output from all the sensors and actuators is verified. The values of the sensors are updated in the web application, the user can use that. The web application is used to monitor the weather conditions around solar panels. Conclusions: An working model of the shield is made, in addition, a cleaning system is made. A bird deterring system is also included. All the additional sensors for monitoring can be used for performance automation.
315

Smart medicine alerting system

Nali, Kuladeep January 2022 (has links)
What is the purpose of medication? It’s job is to cure a disease.But taking medicine at the perfect time will definitely help anyonecure diseases immediately. There are so many situations when missingmedicine timing might happen unintentionally or even expected. Forexample, there are diabetic people who miss their shot of dose atperfect timing. Another example is the people with memory issuesdue to age or disease.There are many situations where missing medicine might causeproblems. Mainly in crisis situation like in hospital we need a re-minder that helps people take the preferred medicine at specified time.So that will be the problem statement of this thesis.The main objective of the thesis is to notify patient take correctmedicine with the help of easy equipment. When elders have a prob-lem we admit them in hospitals but due to COVID epidemic situa-tions hospitals are understaffed. Because of that the patients in hos-pitals may not be treated well. The personal has a busy schedule withCOVID situations so they can’t care must about each and every singledetails. This might causes major problems while giving minute dosesto patient where a 1mg medication change can lead to severe problemsfor a patients health condition. By providing a proper check up withpatient we can solve those problems more effectively.
316

Från videoinspelning till animatronisk fisk med AI : Automatiserad nyhetsbrevssammanfattning och uppspelning / From video recording to animatronic fish with AI : Automated newsletter summarization and playback

Öborn Sandström, Johan, Noah, Däckfors January 2024 (has links)
Olika former av nyhetsbrev har funnits i århundraden. På Redpill Linpros kontor i Karlstadpubliceras veckoliga nyhetsbrev i form av videoinspelningar. För att de anställda påföretaget snabbt ska kunna ta del av innehållet i dessa videoinspelningar är detta projektssyfte och mål att skapa en automatiserad process som sammanfattar dessa veckoliganyhetsbrev. Sammanfattningen ska sedan kunna tas del av genom att spela upp dennapå en animatronisk fisk gjord av plast med inbyggda högtalare. Projektet implementerasmed begränsad hårdvara och ingen data delas med tredje part. För att uppnå detta målundersöks och implementeras olika verktyg som använder sig av artificiell intelligenssamt så modifieras den animatroniska fisken. Resultatet av arbetet är en modulär processsom upptäcker publicering, transkriberar, sammanfattar och läser upp sammanfattningenav veckoliga nyhetsbrev. Uppläsningen kan sedan spelas upp på den förutnämndaanimatroniska fisken med ett enkelt knapptryck. / Various predecessors of newsletters have been around for centuries. At Redpill Linpro’soffice in Karlstad, weekly newsletters are published in the form of video recordings. Inorder for the employees to be able to quickly take part of the content of these videorecordings, the purpose and goal of this project is to create an automated process thatsummarizes these weekly newsletters. The summary is then shared by the possibility ofplaying it on an animatronic fish made of plastic with built-in speakers. The project isimplemented with limited hardware and no data is shared with third parties. To achievethis goal, various tools that use artificial intelligence are researched and implemented,and the animatronic fish is modified. The result of the work is a modular process thatdetects publication, transcribes, summarizes and reads the summary of weekly newsletters.The reading can then be played back on the aforementioned animatronic fish witha simple push of a button.
317

Exploration of Piezoelectric Sensors for Signal Processing and Health Monitoring

Atout, Mohammed January 2024 (has links)
To address the growing demand for accurate and reliable wearable technologyin health monitoring and fitness tracking, this report presents a novel stepcounter integrated into a shoe. The goal is to enhance the precision of stepcounting and provide valuable health metrics, such as calorie burning. Theapproach involves a custom-designed circuit board that processes the signalfrom the piezoelectric disks, and an algorithm is developed to accuratelycount steps. The final phase involves constructing a functional prototype forextensive real-world testing. After testing and simulations, the systemdemonstrated a high level of accuracy in step counting. It successfullyprocessed and analyzed step data, providing insightful health metrics thatcould be used for fitness tracking. Lastly, the prototype achieved its goal ofaccurate step counting but also proved to be a significant contribution to thefield of wearable technology. But it could be further improved to have betterdurability and not break. This advancement has the potential to improve thereliability and effectiveness of fitness-tracking devices.
318

Piano Hero : Interactive musical learning

Ahlzén, Anton, Holma, Ville, Segerberg, Adam, Varahram, Sam, Wiig, Marcus January 2024 (has links)
Learning to play the piano usually involves learning to read sheet music and many hours of prac- tice, which can be seen as a tough task for beginners. This project presents an innovative ap- proach to piano learning by integrating a Raspberry Pi, Arduino, and LED lights with a Casio CTK-550 keyboard. This system interprets MusicXML files and visually guides users by lighting up the keys they need to press in the correct order, providing a more intuitive and engaging learn- ing experience. Additionally, it has a playback mode that makes the piano play the chosen song while illuminating the keys played. This allows the user to hear the song being played correctly before using the interactive mode to play the entire song themselves. These modifications to the piano aim to simplify the learning process and ease in new piano players by removing the big initial barrier of understanding sheet music. The project practices sustainability by reusing components from old projects and also follows several UN Sustainable Development Goals. After a few iter- ations, there was a product able to fulfill the goals set in advance. Future improvements could include improved lighting precision, additional learning modes, and more user-friendly file transfer possibilities.
319

穿戴式互動展演創新應用與姿態感測技術研究 / Interactive Performance Using Wearable Devices: Body Skeleton Detection Technology and Innovative Applications

蘇冠榮, Su, Guan Rong Unknown Date (has links)
近年來人體姿態感測的技術與應用愈來愈熱門。許多電玩及電影大多是藉由攝影鏡頭偵測人體姿態,但效果容易受到外在因素的影響,如陽光、遮蔽物等,特別是用在舞台展演方面就不適合了。因此本篇論文希望設計穿戴式裝置來感測人體姿態,並結合新一代無線網路藍牙4.0做為數據傳輸方式,以進行即時互動展演。本論文研究開發以Arduino結合六軸姿態感測器,設計此穿戴式裝置雛型。而實際在展場上表演,此裝置必需具有一定的穩定性、可靠性且方便穿戴。本論文設計出的裝置與系統,已實際參與數場即時互動展演,並且供觀眾親自體驗,反應熱烈。未來期許能將此系統擴大應用於多人異地互動展演上、能有更大的擴充性、多樣的互動體驗。 / Recently, human body skeleton detection technology and its applications are becoming more popular. Many computer games and movies detect human body skeleton by cameras. However, the detection will be affected easily by sun light or obstacles. Especially, this is not suitable for the applications on stage performance. The goal of this thesis is to design wearable devices to detect body skeleton and uses BLE 4.0 for data transmission to interactively real time art perform. We put 6-axis motion detector on Arduino to develop the wearable device prototyping. These devices for performing in practice should be stable, reliable and convenient for wearing or taking off. The devices and system we developed have been used in several real time interactive performances and for audience experience. In the future, this system can be expanded to people performing in different locations and has better scalability and varieties of interactive experience.
320

Expressive Arduino Controlled Self-Balancing Robot

Haraldsson, Jonathan, Nordin, Julia, Blomstedt, Johanna January 2016 (has links)
A robot capable of balancing itself on two wheels has been built and programmed. While balancing, the robot keeps within a limited area. The robot has a face with two eyes and a mouth, consisting of LED-matrices, which switch between six different facial expressions. The robot is programmed using Arduino boards, one of which implements PID regulators to control the motors.

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