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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.
1

The future of Remote Operations for Autonomous Vehicles : Exploring Human-Automation Teamwork and Situational Awareness for SAE Level 4 trucks

Klingberg, Linnea January 2023 (has links)
The level of autonomation and the number situations which an autonomous vehicle can handle continuously increases. However, even fully autonomous vehicles will need human support, especially when system failures occur. Remote operations enables vehicles to operate autonomously when possible and keeps the human in the loop to assist when needed by allocating them to a remote operating center (ROC). It is a new field within autonomous trucks and little research has thus been conducted on the topic. By taking an approach from the fields of aviation and maritime, where remote operations has been researched for longer, the study aims to transfer knowledge to road freight and to enable remote operations at a management mode. The focus of the study is thus to investigate which information is important for the remote operator (RO) when manual procedures are automated, and to define recommendations for how a ROC could be designed from a human-automation teamwork and situational awareness perspective. The results of the conducted interviews find that the RO first and foremost needs information regarding failures of the automation, including how the failures could be solved. However, it also confirms previous research emphasizing interactive interfaces to avoid passive monitoring, as that is likely to cause an out-of-the-loop problem. Furthermore, recommendations which could be defined regarding the design of a ROC include incorporating both verbal and digital communicational abilities, and the possibility to collaborate, both internally and externally. Lastly, the results show an importance to differentiate between different modes of remote operations in the ROC to remain clear of the responsible actor and avoiding automation surprise.
2

Compliant Behaviors for Remote Robotic Operations

Pokharna, Rahul Kishor 25 January 2022 (has links)
No description available.
3

Risk Contours for RemoteOperations Centres forMaritime AutonomousSurface Ships / Risk­konturer för landbaserad övervakningav autonoma marina fartyg

Baldhagen, Andreas, Lindström, Jonas January 2022 (has links)
To monitor and control maritime autonomous surface ships in a land­based remote operations centre leads to several advantages compared to today when a whole crew is needed on board. For example, less humans would be required to control the same amount of ships, less personnel would be required to live or stay on the ship for a longtime and risk being injured or die in accidents or storms. To facilitate and ease a remote operators work, a risk contour could be a valuable tool and utility. A risk contour is a visual tool on the user interface used by the remote operator and illustrates an area around the ship. When a risk contour collides with another objector another risk contour, a warning notifies the operator of a dangerous situation. In case the operator has multiple monitors, the warning informs the operator to focus on the concerned monitor and Maritime Autonomous Surface Ship (MASS). In this project, risk contours have been researched through a background study, literature study and a case study. In the case study the risk contours were tested in a simulation environment by experienced test persons in the field. The test data was analysed and the opinion of the testers were gathered through simulations and reviewed with questions. The data from the testing showed that the risk contour affected the tester by increasing their risk awareness by increasing distances to other objects or ships and made them act earlier in riskful situations. The feedback from the simulation and the interviews regarding the proposed risk contour was overwhelmingly positive. Understanding the risk contour and the changed risk contour in the different scenarios were highly rated on scales from the participants. The conclusions from the thesis were that wind and currents are the two most relevant factors when studying environmental factors affecting the position of a MASS. The conclusion about which mechanical system was the most relevant, and will affect the risk contour the most when the system has reduced function, was concluded to be the rudder. The study shows that the risk contour for the MASS should be directed towards the relative course over ground when affected by wind and currents. The study also shows that the risk contour should remain the same but be extended when the vesselis affected by reduced manoeuvring ability. Lastly, conclusions about the results from the case study, were that the risk contour both is useful and helpful for the participants. / Att övervaka marina autonoma ytfartyg i en landbaserad fjärroperationcentral och kontrollera dem medför många fördelar i stället för att som idag behöva en hel besättning ombord. Att ha en operatör som övervakar flera fartyg medför många fördelar. Till exempel skulle, färre antal personer krävas för att styra samma antal fartyg samt färre personal vara tvungna att bo på fartyget i långa perioder och riskera att skadas eller avlida i olyckor eller oväder. För att underlätta och stödja övervakning av autonoma ytfartyg kan en risk­-kontur vara ett verktyg och hjälpmedel. En risk-­kontur är ett visuellt verktyg för fjärroperatören och illustrerar ett område runt omkring skeppet. När en risk­kontur kolliderar med ett annat föremål eller en annan risk­kontur, varnas operatören. Om operatören har flera monitorer, ger varningen en indikation om vilken monitor som operatören bör fokusera på. I detta projekt har risk­-konturer undersökts genom en bakgrunds-­, en litteratur-och en fallstudie. Fallstudien bestod av intervjuer med ett antal experter som därutöver fick agera testpersoner i en simuleringsmiljö med risk-konturer. Datan ifråntestningen visade att risk­konturen påverkade testoperatören genom att öka deras riskmedvetenhet och öka avstånd till andra skepp samt agera tidigare i riskfyllda situationer. Feedbacken från simuleringen och den föreslagna formen på risk-­konturen var överväldigande positiv. Risk­-konturen var lätt att förstå och den förändrade risk-konturen i olika scenarier fick högt betyg från deltagarna. Slutsatserna blev att vind och strömmar är de två mest relevanta faktorer när man studerar miljöfaktorer som påverkar positionen för ett marint autonomt ytfartyg direkt. Slutsatsen om vilket mekaniskt system som är det mest relevanta och därför kommer att påverka risk­konturen mest när systemet har reducerad förmåga visade sig vara roder­systemet. Studien visar att risk­-konturen för fartyget bör vara i riktning med den relativa kursen över grund när fartyget påverkas av vind och strömmar. Dessutom visar studien att risk­-konturen ska förbli samma form men förlängas när fartyget påverkas av reducerad manövreringsförmåga. Slutligen var slutsatserna om resultaten från fallstudien att risk­konturen både är användbar och till hjälp för deltagarna.

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