This paper describes the concept of a new algorithm to control an Unmanned Aerial System (UAS) for accurate autonomous indoor flight. Inside a greenhouse, Global Positioning System (GPS) signals are not reliable and not accurate enough. As an alternative, Ultra Wide Band (UWB) is used for localization. The noise is compensated by combining the UWB with the delta position signal from a novel optical flow algorithm through a Kalman Filter (KF). The end result is an accurate and stable position signal with low noise and low drift.
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Poster presentation at the European Social Work Research Conference - ESWRA, Aalborg, Denemarken, 20 april – 21 April In the last decade a call is made upon a stronger knowledge base for social work and an abiding professionalism of practice. Transformations in The Netherlands state welfare regime are amongst others a big impetus for this demand. Universities of Applied Sciences (UAS) contribute substantially in answering this legitimation call. UAS in The Netherlands adopted a research function since 2000 and practice oriented research is prevailing in their type of reseach. Both fields, social work practice and social work research as conducted by UAS, are relatively new and are to a certain degree reinventing themselves. It makes practice oriented social work research a timely topic. This poster presents the outline and aim of the PhD research on how to optimise practice.
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This paper describes the concept of a new algorithm to control an Unmanned Aerial System (UAS) for accurate autonomous indoor flight. Inside a greenhouse, Global Positioning System (GPS) signals are not reliable and not accurate enough. As an alternative, Ultra Wide Band (UWB) is used for localization. The noise is compensated by combining the UWB with the delta position signal from a novel optical flow algorithm through a Kalman Filter (KF). The end result is an accurate and stable position signal with low noise and low drift
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Voordat domotica ingezet wordt, moet er wel eerst bekend zijn wat u er aan heeft. Neem het Unattended Autonomous Surveillance-systeem (UAS). Maakt dit UAS-systeem bij thuiswonende cliënten met een verpleeghuisindicatie uitstel van verpleeghuisopname mogelijk? Deze vraag heeft Vilans onderzocht in samenwerking met de Hogeschool Utrecht. Het UAS-systeem is een alarmsysteem dat noodsituaties bij mensen thuis signaleert zonder dat bewoners een halszender dragen. Bij drie van de twintig cliënten leidde de inzet van dit systeem tot maanden uitstel van opname in het verpleeghuis. In deze eindrapportage vindt u de resultaten van dit onderzoek.
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In November 2019, the High Performance Greenhouse project (HiPerGreen) was nominated for the RAAK Award 2019, as one of the best applied research projects in the Netherlands. This paper discusses the challenges faced, lessons learned and critical factors in making the project into a success.
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This paper presents a method for Universities of Applied Sciences (UAS) to account for the impact of research. The 36 UAS in The Netherlands aim to contribute to global challenges and pressing social issues through practice-based research. Given this aim UAS have a strong responsibility to account for the impact of their research and to show that the public research money is well spent. This paper shows that none of the existing methods for assessing the impact of research are suitable for the research conducted at Dutch UAS. It offers an alternative approach based on narratives supported by empirical evidence.
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To better control the growing process of horticulture plants greenhouse growers need an automated way to efficiently and effectively find where diseases are spreading.The HiPerGreen project has done research in using an autonomous quadcopter for this scouting. In order for the quadcopter to be able to scout autonomously accurate location data is needed. Several different methods of obtaining location data have been investigated in prior research. In this research a relative sensor based on optical flow is looked into as a method of stabilizing an absolute measurement based on trilateration. For the optical flow sensor a novel block matching algorithm was developed. Simulated testing showed that Kalman Filter based sensor fusion of both measurements worked to reduce the standard deviation of the absolute measurement from 30 cm to less than 1 cm, while drift due to dead-reckoning was reduced to a maximum of 11 cm from over 36 cm.
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This article aims to explore the moral ideas and experiences that students at Dutch universities of applied sciences (UAS) have of being a professional with an ‘ethical compass.’Semi-structured interviews were held with 36 fourth-year Bachelor students divided over four institutions and three different programmes: Initial Teacher Educa- tion, Business Services and Information and Communication Technology. Findings show that students say they strive to be(come) moral professionals, but that they have difficulties recognising and articulating the moral aspects of their professional roles. They seem to lack a moral vocabulary and the moral knowledge to verbalise their aspirations and to provide arguments to explicate or legitimise their moral behaviour. While most students were critical of the support they received from their universities, they indicated that various other role models and (work) experiences did have a strong and positive influence on their moral development. In this article, we reflect on the findings in relation to international empirical research on students’ moral development and highlight the characteristics of UAS students.
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The knowledge base for Social Work is strengthening. Underpinning of Social Work deriving from scientific research is necessary given the growing complexity of the work and its context. How this research should be conducted and to what type of outcomes it must lead, is part of an ongoing debate. In the Netherlands, practice-based research at Universities of Applied Sciences (UAS) is a relative new approach. Social Work research groups at UAS assert to conduct practice-based research in order to contribute to knowledge and support the objectives of Social Work. The current study was carried out to obtain insight into the characteristics of this research approach. A sample of publications was analysed in terms of knowledge purpose, methodology, and level and type of participation. Results show a strong focus on producing descriptive knowledge and to a lesser extent on control knowledge, using primarily qualitative research methods, and with limited direct participation by stakeholders. In order to practice more what they preach the research can strengthen by doing more empirical research, by diversifying the research in terms of design and methods and increasing the level of participation of stakeholders
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De studie beschrijft het antwoord op de vraag de situatie van de alumni van IBS is op de beroepsmarkt. 6 Subvragen zijn gesteld en beantwoord. De vragen zijn1. Hoeveel IBS studenten studeerden af tussen 1990 en2017?2. Wat zijn de meest voorkomende beroepen en functies?3. Is ter een relatie tussen de keuze van afstudeers minor en het beroep van de alumni?4.Welke bedrijven nemen IBS alumni in dienst?5. Waar werken IBS alumni, hoe internationaal is de alumnus?6. Wat is het studie verloop na het IBS Bachelor diploma.De volgende conclusies zijn getrokken.1. Het aantal afgestudeerden lijkt omlaag te gaan. De samenstelling van nationaliteiten lijkt momenteel te verschillen van die aan het begin van de studie. 2. Het curriculum weerspiegelt het meerendeel van de beroepen van de alumni, aan Sales wordt in het curriculum minder aandacht besteed dan het aantal banen die vervuld worden. 3. De minoren vormen een goede afspiegeling van de beroepen. Er is evenwel geen sterke relatie tussende gekozen minor en het uiteindelijk gekozen beroep, wat het beeld versterkt dat IBS een generieke beroepsopleiding is. 4. Alumni werken in meerderheid voor grote internationaal opererende bedrijven. De meest voorkomende zijn te vinden onder de financials, digitale service providers, de retail en consumenten goederen.5. De alumni van IBS werken zeer internationaal. Het lijkt evenwel dat de meest recente alumni minder geneigd zijn in het buitenland te werken. Een mogelijke verklaring kan ook zijn dat er bij internationaal werkende bedrijven in Duitsland en Nederland voldoende banen te vinden zijn. Een ander beeld dat zich aandient dat Nederland voor veel buitenlandse studenten een vestigingsland is voor een professionele carriere.6. Een bachelor opleiding is nog steeds een goed fundament voor een business carriere aangezien voor 2/3 van de alumni het bachelor diploma het hoogst behaalde diploma is.
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