2021 International Young Engineers Forum (YEF-ECE)最新文献_第2页

A Reconfigurable Switched-Capacitor DC-DC Step-up Converter Integrated in 130 nm CMOS 可重构开关电容DC-DC升压变换器集成在130纳米CMOS

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505159

Joao Gerhardt, L. Oliveira, Henrique Oliveira

引用次数: 0

Mathematical Modeling of the Interests of Social Network Users 社交网络用户兴趣的数学建模

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505100

Zhenisgul Rakhmetullina, Roza Mukasheva, Raushan Mukhamedova, Bolat Batyrkhanov

引用次数: 2

YEF-ECE 2021 Author Index

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/yef-ece52297.2021.9505121

引用次数: 0

Multi-image Super-Resolution Algorithm Supported on Sentinel-2 Satellite Images Geolocation Error 基于Sentinel-2卫星图像地理定位误差的多图像超分辨率算法

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505092

Miguel Vaqueiro, J. Fonseca, H. Oliveira, A. Mora

{"title":"Multi-image Super-Resolution Algorithm Supported on Sentinel-2 Satellite Images Geolocation Error","authors":"Miguel Vaqueiro, J. Fonseca, H. Oliveira, A. Mora","doi":"10.1109/YEF-ECE52297.2021.9505092","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505092","url":null,"abstract":"Every year, the hottest seasons are marked by forest fires. Monitoring these forest areas is more effective with the help of satellite imagery, since ground operations are hampered by vegetation density and height, making them less productive and more expensive. However, nowadays, freely available imagery from Sentinel-2 satellite has a maximum spatial resolution of 10 meters per pixel, a low resolution to identify small or thin structures in the image, such as roads, bridges, buildings, rivers, fuel breaks, among others.To improve image’s resolution, a new super-resolution algorithm, named KGEONP – K Geographically Nearest Pixels, is proposed in this paper. It benefits from Sentinel-2 regular observations (it has a revisit of 5 days) and the georeferencing error of its images (whose maximum value is 1.5 pixels). KGEONP seeks to add as much information as possible to the super-resolved image, by using data from K-nearest pixels and their spatial distance for computing each new pixel’s value.KGEONP was applied to Sentinel-2 images to increase resolution by a factor of 10 and was compared to state-of-the-art super-resolution techniques. It showed quite satisfactory results, with the capacity of increasing resolution and maintaining the structural data of the source images.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125614070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Synoptics of Things (SoT): An Open Framework for the Supervision of IoT Devices 物联网概要(SoT):物联网设备监管的开放框架

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505145

Bruno Serras, C. Gonçalves, Tiago Dias, A. L. Osório

{"title":"Synoptics of Things (SoT): An Open Framework for the Supervision of IoT Devices","authors":"Bruno Serras, C. Gonçalves, Tiago Dias, A. L. Osório","doi":"10.1109/YEF-ECE52297.2021.9505145","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505145","url":null,"abstract":"In the industry, there is a need to manage and monitor systems and their associated devices. This process can be quite complex when the technological landscape is composed of several heterogeneous systems. In such scenarios, both the systems and their devices can be from different suppliers, each one with its own interfaces, often proprietary and non standardized. Moreover, several different administrators can be responsible for the supervision of a system, which greatly complicates the process of supervising multiple systems. Yet, overviewing a technological landscape can be facilitated by the concept of Synoptics, as a fundamental part of a supervisory control and data acquisition system. As modern applications become more and more web based, it makes sense to use web browsers to implement the concept of Synoptics. In this paper, we present the Synoptics of Things (SoT) framework to extend the Synoptics concept to the web domain. The proposed SoT framework explores the concept of Web Components as a standard to enable the development of custom and reusable components for modern web browsers. Such components, or Widgets-IoT, as we call them, can function as an abstraction of both IoT devices and informatics systems, facilitating the interaction with the supervising operators. Accordingly, we present and discuss the use of the SoT framework in an Informatics System of Systems reference implementation to monitor and control the involved systems and the various executive services that compose them.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125485047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A sub-1V CMOS Instrumentation Amplifier for an AFE Interfacing with Sensors 用于AFE与传感器接口的sub-1V CMOS仪表放大器

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505076

F. Neves, J. Oliveira, Henrique Oliveira

引用次数: 2

The Use of Bézier Curves for Optimal Motion Planning of Autonomous Vehicles bsamzier曲线在自动驾驶汽车运动优化规划中的应用

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505058

Thomas Berry, A. Pascoal

引用次数: 0

Model predictive control strategies for parcel relay manoeuvres using drones 无人机包裹接力机动的模型预测控制策略

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505115

F. Matos, Bruno J. Guerreiro

{"title":"Model predictive control strategies for parcel relay manoeuvres using drones","authors":"F. Matos, Bruno J. Guerreiro","doi":"10.1109/YEF-ECE52297.2021.9505115","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505115","url":null,"abstract":"The increasing supply and demand by customers and companies is an important factor present in today’s economy. With new business tactics like online shopping, the number of products being requested by clients is rapidly increasing, and to have a profitable business companies must be able to reach the client in a quick, effective way. Current delivery services distribute large quantities of items in urban environments, however, for individual deliveries, they are not the most efficient, since they result in high costs. Autonomous electric vehicles like quadcopters offer a new approach to the delivery paradigm, being more efficient and accessible, less polluting, among other advantages, however their low battery life presents a big disadvantage, limiting the range these aircrafts can reach to deliver packages. The present paper addresses this problem by studying advanced control methods, particularly Model Predictive Control (MPC) based techniques due to their effectiveness handling agile dynamics and performing aggressive manoeuvres, accounting to physical and mechanical constraints present in the process. The main goal is having two aircrafts perform a relay manoeuvre, exchanging a payload between them and effectively extending the delivery range. Firstly, the vehicle’s model is established and used to formulate the optimal control problem. The resulting controller will be subjected to validation using complex trajectories and compared to an implementation of another similar controller. After validation, the controller will be adapted to support two vehicles simultaneously and subjected to a parcel exchange scenario. Conclusions about the feasibility of the controller will be drawn.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116285072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

[YEF-ECE 2021 Front cover]

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/yef-ece52297.2021.9505091

引用次数: 0

NOVA.DroneArena: design and control of a low-cost drone testbed 新星。无人机竞技场:低成本无人机试验台的设计和控制

2021 International Young Engineers Forum (YEF-ECE) Pub Date : 2021-07-09 DOI: 10.1109/YEF-ECE52297.2021.9505090

H. Cabrita, Bruno J. Guerreiro

{"title":"NOVA.DroneArena: design and control of a low-cost drone testbed","authors":"H. Cabrita, Bruno J. Guerreiro","doi":"10.1109/YEF-ECE52297.2021.9505090","DOIUrl":"https://doi.org/10.1109/YEF-ECE52297.2021.9505090","url":null,"abstract":"In order to improve the development of unmanned aerial vehicles it is mandatory to make, not only virtual simulations using proper software, but also real experimental trials. Furthermore, to enable rapid prototyping, a controlled environment with all the necessary hardware and software must be thoroughly prepared. The creation of a testbed will solve this need and that is precisely the objective of this article, allowing future drone developments in NOVA School of Science and Technology. In order to be able to follow the trajectory of the drone and ensure that its position is known with a considerable accuracy and low latency, the testbed will rely on Marvelmind Indoor Navigation System. Regarding this system and so that it was possible to have an idea of how accurate it can be, a series of experiments were done with the objective of achieving the best configuration out of it. Furthermore, it is shown that it can be integrated with an autopilot module, in this case PX4 Mini was used. Consequently, so that the communication was as fast and reliable as possible, a Wi-Fi module was used, namely ESP2866. The testbed is then validated by conducting a simple experimental trial inside its perimeter.","PeriodicalId":445212,"journal":{"name":"2021 International Young Engineers Forum (YEF-ECE)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126297569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2