Search results for "53"
showing 10 items of 2908 documents
Sustainable Approaches for Highway Runoff Management During Construction and Operation
2022
Paper V and paper VI have not been published yet. Environmentally friendly approaches for highway runoff management during construction and operation are considered in this project. First, the state of the art in runoff management in terms of characterization, treatment, and modeling approaches were surveyed, and knowledge gaps were identified. Then, the characterization and treatment of tunneling wastewater (by natural and chemical coagulants) was investigated. In the next stage, the vulnerability of water quality to road construction activities was investigated by analyzing field monitoring data. In addition, two different approaches, involving information theory and gamma test theory, we…
Transition to a fossil- and emission-free construction industry
2018
Master's thesis Industrial Economics and Technology Management IND590 - University of Agder 2018 The object for this thesis is to see how Nettpartner, which is Norway’s largest electrical infrastructure contractor, can contribute to the green change in the construction industry. To go green has become a big topic in the Norwegian construction industry during the last few years, and in 2017 a report concluded that the Norwegian construction industry could reduce their emissions of greenhouse gases with close to 99 % if the industry planned better before they started building. The method used in this research is the constructive research. The aim of constructive research is to solve practical…
Simultaneous Localization and Mapping in Repeating Environments
2018
Master's thesis Mechatronics MAS500 - University of Agder 2018 Konfidensiell til / confidential until 01.07.2023
State Estimator using Hybrid Kalman and Particle Filter for Indoor UAV Navigation
2021
Master's thesis in Mechatronics (MAS500) Unmanned aerial vehicles (UAVs) are being used for outdoors inspection and surveying tasks. When operating in an outdoor environment, the global navigation satellite system (GNSS) is predominantly used for position aiding, and magnetometers are used for heading aiding. In combination with an inertial sensor, these sensors form the backbone for state estimation for drones operating in an outdoor environment. A desire to utilize UAVs for inspections in indoor environments means that new challenges are faced. One of these challenges is that the traditional GNSS is unavailable for position aiding, and magnetometers can be unreliable in the presence of in…
Implementering av maskinsyn for montering av fasadeplater
2017
Masteroppgave i mekatronikk MAS500 - Universitetet i Agder 2017 The construction industry has seen a surge in efficiency and automation solutions in recent years. MacGregor, in cooperation with the University of Agder want to use crane and lifting technology to streamline construction processes. Facade panels are widely used due to ease of installation and require minimal maintenance. The process associated with installation has an automation potential. This thesis looks at the implementation of machine vision for installation of facade panels. Installation is done using a ABB IRB6600 industrial robot and a vacuum tool. The machine vision is based on OpenCV and C++. The main components of t…
Using AI and Robotics for EV battery cable detection.: Development and implementation of end-to-end model-free 3D instance segmentation for industria…
2021
Master's thesis in Information- and communication technology (IKT590) This thesis describes a novel method for capturing point clouds and segmenting instances of cabling found on electric vehicle battery packs. The use of cutting-edge perception algorithm architectures, such as graph-based and voxel-based convolution, in industrial autonomous lithium-ion battery pack disassembly is being investigated. The thesis focuses on the challenge of getting a desirable representation of any battery pack using an ABB robot in conjunction with a high-end structured light camera, with "end-to-end" and "model-free" as design constraints. The thesis employs self-captured datasets comprised of several batt…
Learning Automata based Shiftable Domestic Load Scheduling in Smart Grid: Accuracy and Fairness
2016
Master's thesis in Information- and communication technology IKT590 - University of Agder 2016 In this thesis, investigation is carried out on scheduling of shiftable loads which involves partly selection of loads within the power budget of operator. Domestic shiftable loads are scheduled along multiple timeslots with the considerations of the accuracy of scheduling in terms of optimization of capacity and of the fairness between appliances in terms of frequency of usage in smart grids. Since the scheduled load can not be over the capacity, the global optimal point is a combination of loads which are most close or equal to but not over the capacity. This optimization problem is shown to be …
RPA og prosessledelse : En eksplorativ studie av RPA-implementering i norske bedrifter
2020
Master's thesis in Information systems (IS501) Bakgrunnen for denne utredningen har vært å undersøke om det er en sammenheng mellom Robotic Process Automation (RPA) og Business Process Management (BPM), samt hvordan norske virksomheter nyttiggjør seg av dem. I de siste årene har det i økende grad blitt populært å ta i bruk RPA for å automatiseredeler av bedrifters prosesser. Utover dette vet vi veldig lite om hvilke erfaringer virksomheter har med denne teknologien. På den annen side har vi BPM, et konsept som har blitt forsket på i flere år.Samtidig finnes det lite forskning som tar for seg både RPA og BPM. På bakgrunn av dette gjennomførte vi en forstudie høsten 2019. Her gjorde vi flere …
Condition monitoring of steel wire ropes
2018
Master's thesis Mechatronics MAS500 - University of Agder 2018 By utilising the measurements from a commercial acoustic emission sensor system, magnetic tester and a camera system, conducted during four separate simple bending fatigue tests of steel wire ropes (SWR), several measurable quantities of the SWR which indicate deterioration were identi ed. Based on the measurements of a commercial acoustic emission sensor system of one of the tests in this thesis, the fatigue process of a SWRs in a simple bending test is three-phase, with a relatively long rstand second phase, showing little- and steady increase in activity, respectively, followed by a shorter phase with a ramp up of activity. T…
Modeling, Simulation and Control for Marine Crane Operations
2020
Master's thesis in Mechatronics (MAS500) Marine cranes play an important part in offshore operations. They are expected to perform awide range of different tasks, such as handling the load safely offshore. Nowadays, the offshoreoil fields and wind farms are detected and developed, thus more and more offshore platforms arebuilt. The scale and capacity of crane vessels are developing rapidly to fulfill the construction needof offshore platforms and offshore wind farms. Heavy crane, placed on-board vessel, is affected byvessel motions induced by environmental forces such as wind, waves and current, and vice versa.Therefore, the investigation of coupled dynamics between heavy crane and vessel, …