IWADS – Applications of Dynamical Systems

International Workshop on Applications of Dynamical Systems – IWADS 2022

1 November (Tuesday) 2022

Aeronautics Institute of Technology – ITA

São José dos Campos,

12228-900, SP, Brazil

New IEF Building, Room F2-102


ARISE-LA Invited talks

DEEC, room: I(-1)05

Date and time: Thursday, October 27, at 3 pm

Title: Applied cryptography and cybersecurity in autonomous vehicles

Petter Solnør, Norwegian University of Science and Technology

Abstract: With cloud-computing technology, we can outsource computations in feedback control to third-party providers, increasing scalability and enabling feedback control as a service. However, by hosting our systems on third-party infrastructure, we also reveal potentially confidential information which limits the practical use of such systems. We can solve this problem by using a cryptographic concept called homomorphic encryption to design encrypted control systems that only operate on encrypted data. The goal of this presentation is to describe how we can use homomorphic encryption to design encrypted feedback control systems. We cover the basics of homomorphic encryption before describing general design principles and limitations of encrypted control. We proceed by showing examples of an encrypted control system and an encrypted guidance system for an unmanned surface vehicle. Finally, we show a third application where we fuse encrypted state estimates and describe how we can use such an application to, for example, design a collaborative air defense surveillance system.

Title: Autonomous docking of unmanned surface vehicles aided by visual and acoustic measurements

Øystein Volden, Norwegian University of Science and Technology

Abstract: Docking is a safety-critical operation for autonomous surface vehicles and requires highly accurate navigation signals. Since Global Navigation Satellite Systems (GNSS) can be unreliable and inaccurate in urban environments, other sensors should be considered for increased redundancy and reliability. To this end, we present a low-cost visual-inertial navigation system that we can use for automatic docking of small vehicles. The proposed system produces state estimates of the vehicle, including position, velocity, and attitude, based on raw image and inertial data. To simplify the navigation task, we use easily identifiable tags as a reference on the dockside. When the vehicle approaches the dock, a visual fiducial system recognizes the tags and estimates the relative pose between the camera onboard the vehicle and the tags at the dockside. The camera-tag pose and inertial data are then fused using an error-state Kalman filter for robust state estimation of the vehicle. Since the visual system is constrained by distance to the dockside and the camera’s field of view, we also employ a doppler velocity log (DVL) to obtain low-drift velocity aiding. As such, the DVL can be used to minimize drift for short-endurance missions until a landmark is detected and used by the visual system.

ADOreD – SYSTEC participates in the new project that aims to accelerate the deployment of offshore wind energy using DC technology

ADOreD – Accelerating the Deployment of Offshore wind using DC technology (01/10/2022 – 30/09/2026)

Renewable power is one of the main drives to achieve carbon reduction and net-zero, and to meet the ambitious climate goals. In particular, offshore wind power in Europe has been developing at a rapid pace in recent years. Multi-Giga watts offshore wind farms with larger wind turbine power ratings, floating wind turbines installed in deeper water areas, and higher ratio of renewables integrated to existing power grids, are fundamentally changing power system operations and bringing new challenges and technical demands. This industry doctorate consortium, ADOreD, will recruit and train 15 Researchers by collaborating with 19 academic and industrial organizations. It aims to tackle the academic and technical challenges in the areas of transmission of offshore wind power to the AC grid by using power electronics-based AC/DC technologies. In doing so, it will equip the Researchers, through their PhD studies, with essential knowledge and skills to face fast energy transition in their future careers. The project covers 3 key research aspects: offshore wind (including wind turbines, wind power collection, and wind farm design and control); DC technologies (including AC/DC converters, HVDC control and DC network operation and protection); and AC grid (including stability and control of AC grids dominated with converters under various control modes. The ADOreD consortium has excellent coverage of academic universities and industry organizations including manufacturers, energy utilities, system operators, consultancy and technology innovation centers. All the research questions in the project reflect industry needs; academic novelty and innovation will be reflected in the methodologies and solutions; and the research results will be disseminated directly to the industry partners’ products, grid operation and services. The outcomes of the project are both technologies and a talent pool to accelerate the deployment and grid integration of large-scale offshore wind power.

Partners from Denmark, United Kingdom, China, Portugal, Germany, Belgium, Spain, Island:

  • Faculdade de Engenharia da Universidade do Porto (FEUP – SYSTEC) and Danmarks Tekniske Universitet (Coordinator);
  • Cardiff University;
  • Centrale Lille Institut; China Electric Power Research Institute (SEAL) SOE;
  • EFACEC ENERGIA – Máquinas e Equipamentos Eléctricos S.A;
  • Global Energy Interconnection Research;
  • Institute Europe GMBH;
  • Hitachi Energy Germany AG;
  • Katholieke Universiteit Leuven;
  • Ore Catapult Development Services Limited;
  • RED Electrica de Espana S.A.U.;
  • Scottish Hydro Electric Transmission PLC;
  • Siemens Gamesa Renewable Energy AS;
  • TNEI Services Limited;
  • Universitat Politècnica de Catalunya;
  • Vattenfall Vindkraft A/S;
  • Youwind Renewables EHF;
  • YUSO.

CEMMPRE participation in the Celebration of the 50th anniversary of the Department of Mechanical Engineering

As part of the celebrations of the 50th anniversary of the creation of engineering courses at the University of Coimbra (UC), the Department of Mechanical Engineering (DEM) of the Faculty of Science and Technology of the University of Coimbra (FCTUC) held, on the 30th of September, a meeting to mark the date. With the motto “RoadMAP50 – Memory, Present and Perspectives”, the initiative aimed to “visit the memory of the evolution of the DEM and analyze its current situation to envision its future development”.

CEMMPRE participated in this initiative, with a brief presentation highlighting its integration into the Advanced Production and Intelligent Systems (ARISE) Associated Laboratory (AL), as well as its Research, Development, and Innovation activity, with particular emphasis on ongoing projects. At the end, Professor Marta Oliveira, made an appeal to all former members of CEMMPRE (or of CEMUC and ICEMS – centres that gave rise to CEMMPRE) to integrate a network that intends to promote future collaborations.

CEMMPRE participation in the European Researcher’s Night

A group of CEMMPRE Researchers participated in the European Researchers’ Night, which this year had as its theme SCIEVER – SCIENCE FOR EVERYONE – Sustainability and Inclusion.

A game and a small exhibition were the base of this participation. In an entertaining way, the objective of the game was to show CEMMPRE activities, including GreenTRIBOS (a joint doctorate programme on Green Tribology for Sustainable Engineering), raising awareness for personal conscience on sustainability-related to mechanical engineering, materials, and processes. This game also gave visibility to the Advanced Production and Intelligent Systems (ARISE) Associated Laboratory (AL). The Robot “Pepper” was the main attraction of the small exhibition.

Inova+ Awards

INOVA+ celebrated its 25th anniversary with the launch of a national competition to award innovative projects in a scientific and business context, with the potential of an international scale, and to distinguish, through the CAREER AWARD – SCIENTIFIC EXCELLENCE, those who have remarkably careers and who, in doing so, has contributed to asserting excellence in teaching and research.

In this edition, PROFESSOR FERNANDO LOBO PEREIRA was awarded, posthumously, the personality of the year award, distinguishing and recognizing the excellence of his scientific career and the contribution that, by example, he made to society.

The communication of the results took place in a public session, on the 26th of September 2022, in the FEUP Auditorium.


Fernando Lobo Pereira, founder of the ARISE Associated Lab of which he was Scientific Coordinator, passed away on June 17th, 2022. He was 65 years old.

A person of immense sympathy and generosity, he leaves an enormous scientific legacy. One of the biggest Portuguese names in the areas of control, dynamic optimization, impulsive systems, coordination and control of multiple dynamic systems, autonomous systems, as well as control applications in mobile robotics, power and manufacturing systems.

With condolences to the family, colleagues and friends The Advanced Production and Intelligent Systems Associated Laboratory.