Managing a Fleet of Autonomous Mobile Robots (AMR) using Cloud Robotics Platform

In this paper, we provide details of implementing a system for managing a fleet of autonomous mobile robots (AMR) operating in a factory or a warehouse premise. While the robots are themselves autonomous in its motion and obstacle avoidance capability, the target destination for each robot is provided by a global planner. The global planner and the ground vehicles (robots) constitute a multi agent system (MAS) which communicate with each other over a wireless network. Three different approaches are explored for implementation. The first two approaches make use of the distributed computing based Networked Robotics architecture and communication framework of Robot Operating System (ROS) itself while the third approach uses Rapyuta Cloud Robotics framework for this implementation. The comparative performance of these approaches are analyzed through simulation as well as real world experiment with actual robots. These analyses provide an in-depth understanding of the inner working of the Cloud Robotics Platform in contrast to the usual ROS framework. The insight gained through this exercise will be valuable for students as well as practicing engineers interested in implementing similar systems else where. In the process, we also identify few critical limitations of the current Rapyuta platform and provide suggestions to overcome them.Comment: 14 pages, 15 figures, journal pape

6C learning: a pragmatic framework for 2nd generation e-learning projects.

In 2006 we expect a large scale take-up of e-learning. In this paper we first argue that e-learning has evolved from a first to a second generation, with learning itself as the essential component. Within this second generation, we present a pragmatic framework, the 6C learning framework. There are six components, all pertaining to the question how to make e-learning work. Success in e-learning is the result of careful conceptualization, design, implementation and outcome. The framework enables reflection, sustainment and evaluation. As such, it is mainly but not solely meant for management of e-learning projects. This reference framework may thus prove its usefulness as a possible checklist.e-learning; architecture;

The role of boundary objects in the co-evolution of design and use: the KMP project experimentation

Nowadays, it is widely recognized that an ICT tool cannot be built without knowing who will use it and what they will do with. In this perspective, Human-Computer Interaction community (Carroll, 1990; Jarke, Tung Bui and Carroll, 1998; Young and Barnard, 1987; Young and al., 1989) developed a scenario-based approach contrasting with the traditional information system design. The scenario describes an existing or envisioned system from the perspective of one or more users and includes a narration of their goals, plans and reactions (Rosson and Carroll, 2002). As a result, design is founded on the use of scenarios as a central representation for the analysis and design of use. The scenario-based design appears to be a first step in the integration of users in the design of ICT tool. However, we would like to underline in this paper a more active role of users in the design process. According to Orlikowski (2000) while a technology can be seen to have been constructed with particular materials and inscribed with developers' assumptions and knowledge about the world at a point in time, it is only when this technology is used in recurrent social practices that it can be said to structure user's action. The use of technology in recurrent social practices must be considered because how technological properties will for the moment be used or appropriate is not inherent or predetermined. Finally, this approach leads us to dissociate the designers' world from the users' world. In this perspective, the design project is the result of the co-evolution and the convergence of both worlds: on the one hand, the world of design and a first integration of users by scenarios; on the other hand, the world of users where innovation is the art of interesting an increasing number of allies who will make the world of design stronger and stronger. The objective of this paper is to understand the mechanisms of interaction between the world of design and that of users i.e. between loops of co-design and loops of uses. Indeed, according to Akrich, Callon and Latour (1988) we adopt a whirlwind model of innovation. In this perspective, “innovation continuously transforms itself according to the trials to which it is submitted i.e. of the “interessements” tried out » (Akrich and al., 2002: 7). We will demonstrate that the key success of an innovation depends on the co-evolution and convergence of design and use around boundary objects developed during this process (see Figure 1). More specifically, we will show the role of boundary objects on the integration and on the involvement of users in the design process. In order to do so, we carried out an empirical research – the Knowledge Management Platform project - located in the scientific park of Sophia Antipolis (Alpes-Maritimes, France), focusing on the Telecom Valley® (TV) association which gathers the main actors of the Sophia Antipolis Telecom cluster. Indeed, the KMP project aims to build a semantic web service of competencies in order to enhance exchange and combination dynamics of knowledge within the Telecom cluster thanks to an interactive mapping of competencies. This paper will comprise three parts: Based on the researches of Akrich, Callon and Latour (1988), Hatchuel and Mollet (1986), Orlikowski (2000), Romme and Endenburg (2006) we will identify and analyse in a first part the process of design. The combination of these approaches leads us to distinguish the design' world from the users' world. In this perspective, the success of an innovation may be explained by the co-evolution and the convergence of these two worlds. In this process, we suggest that boundary objects play a key role in the convergence of these two worlds. We will present in a second part the empirical study of the KMP project within the TV network. The KMP project involved researchers from socio-economic sciences (GREDEG Laboratory, UNSA-CNRS, Rodige and Latapses teams), cognitive sciences and artificial intelligence (INRIA, Acacia team), telecommunications (GET) and users (TV) for a total force of 187 men per month for a two-year period (2003-2005). At this present time this project is being set up in a pre-industrialization phase, supported by TV and the PACA region. Here, we will analyse the specific process of design experimented by KMP. Finally, the third part discusses the role of boundary objects in the KMP experimentation. In this part, we will show the evolution of boundary objects during the loops of design. More specifically, the focus will be on the emergence of compromises between designers and users, their materialisation in boundary objects and finally their evolution during the design' process.boundary objects, IS development, actor network theory

Highlighting Current Trends in Volunteered Geographic Information

Volunteered Geographic Information (VGI) is a growing area of research. This Special Issue aims to capture the main trends in VGI research based on 16 original papers, and distinguishes between two main areas, i.e., those that deal with the characteristics of VGI and those focused on applications of VGI. The topic of quality assessment and assurance dominates the papers on VGI characteristics, whereas application-oriented work covers three main domains: human behavioral analysis, natural disasters, and land cover/land use mapping. In this Special Issue, therefore, both the challenges and the potentials of VGI are addressed

ARTiVIS Arts, real-time video and interactivity for sustainability

Dissertação para obtenção do Grau de Doutor em Media DigitaisPortuguese Foundation for Science and Technology (SFRH/BD/42555/2007

Building capacity in climate change policy analysis and negotiation: methods and technologies

Capacity building is often cited as the reason “we cannot just pour money into developing countries” and why so many development projects fail because their design does not address local conditions. It is therefore a key technical and political concept in international development. Some of the poorest countries in the world are also some of the most vulnerable to the impacts of climate change. Their vulnerability is in part due to a lack of capacity to plan and anticipate the effects of climate change on crops, water resources, urban electricity demand etc. What capacities do these countries lack to deal with climate change? How will they cope? What steps can they take to reduce their vulnerability? This innovative and high-profile research project was part of a larger project (called C3D) and conducted with non-governmental organisations in Senegal, South Africa and Sri Lanka. The research involved several participatory workshops and a questionnaire to all three research centres

Deliverable 3.3. Reports on execution of field trails at each case study site

The main objective of the field trials was to bring into practice the key aspects of EVOKED: the focus on climate services, the Living Labs approach, and the information design of the selected climate services for each of the EVOKED case study sites (Deltares, 2019). To support comparing the outcomes of these case studies, Deliverable 3.2 (Deltares, 2020) was developed to create a framework to structure the data that has been collected in the case studies as well as to draw lessons and conclusions based on a case comparison. The final objective as presented in the present report is “a systematic evaluation of the climate information designs and thus of the communicative qualities of currently used climate services; insight into the different information needs, perceptions of risk and uncertainty, and the responsibilities and roles of different stakeholder groups; a set of visualization principles and visualization strategies for stakeholder specific climate services.” (Deltares, 2019, p.17).EU, Horizon Europe European Research Area for Climate Services JPI Climate The Research Council of Norway Federal Ministry of Education and Research (Germany) NWO FORMA

How a Diverse Research Ecosystem Has Generated New Rehabilitation Technologies: Review of NIDILRR’s Rehabilitation Engineering Research Centers

Over 50 million United States citizens (1 in 6 people in the US) have a developmental, acquired, or degenerative disability. The average US citizen can expect to live 20% of his or her life with a disability. Rehabilitation technologies play a major role in improving the quality of life for people with a disability, yet widespread and highly challenging needs remain. Within the US, a major effort aimed at the creation and evaluation of rehabilitation technology has been the Rehabilitation Engineering Research Centers (RERCs) sponsored by the National Institute on Disability, Independent Living, and Rehabilitation Research. As envisioned at their conception by a panel of the National Academy of Science in 1970, these centers were intended to take a “total approach to rehabilitation”, combining medicine, engineering, and related science, to improve the quality of life of individuals with a disability. Here, we review the scope, achievements, and ongoing projects of an unbiased sample of 19 currently active or recently terminated RERCs. Specifically, for each center, we briefly explain the needs it targets, summarize key historical advances, identify emerging innovations, and consider future directions. Our assessment from this review is that the RERC program indeed involves a multidisciplinary approach, with 36 professional fields involved, although 70% of research and development staff are in engineering fields, 23% in clinical fields, and only 7% in basic science fields; significantly, 11% of the professional staff have a disability related to their research. We observe that the RERC program has substantially diversified the scope of its work since the 1970’s, addressing more types of disabilities using more technologies, and, in particular, often now focusing on information technologies. RERC work also now often views users as integrated into an interdependent society through technologies that both people with and without disabilities co-use (such as the internet, wireless communication, and architecture). In addition, RERC research has evolved to view users as able at improving outcomes through learning, exercise, and plasticity (rather than being static), which can be optimally timed. We provide examples of rehabilitation technology innovation produced by the RERCs that illustrate this increasingly diversifying scope and evolving perspective. We conclude by discussing growth opportunities and possible future directions of the RERC program