This work is on 3-D localization of sensor motes in massive swarms based solely on 1-D relative distance-measurements between neighbouring motes. We target applications in remote and difficult-to-access environments such as the exploration and mapping of the interior of oil reservoirs where hundreds or thousands of motes are used. These applications bring forward the need to use highly miniaturized sensor motes of less than 1 centimeter, thereby significantly limiting measurement and processing capabilities. These constraints, in combination with additional limitations posed by the environments, impede the communication of unique hardware identifiers, as well as communication with external, fixed beacons.
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This paper introduces a novel distributed algorithm designed to optimize the deployment of access points within Mobile Ad Hoc Networks (MANETs) for better service quality in infrastructure less environments. The algorithm operates based on local, independent execution by each network node, thus ensuring a high degree of scalability and adaptability to changing network conditions. The primary focus is to match the spatial distribution of access points with the distribution of client devices while maintaining strong connectivity to the network root. Using autonomous decision-making and choreographed path-planning, this algorithm bridges the gap between demand-responsive network service provision and the maintenance of crucial network connectivity links. The assessment of the performance of this approach is motivated by using numerical results generated by simulations.
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A novel type of application for the exploration of enclosed or otherwise difficult to access environments requires large quantities of miniaturized sensor nodes to perform measurements while they traverse the environment in a “go with the flow” approach. Examples of these are the exploration of underground cavities and the inspection of industrial pipelines or mixing tanks, all of which have in common that the environments are difficult to access and do not allow position determination using e.g. GPS or similar techniques. The sensor nodes need to be scaled down towards the millimetre range in order to physically fit through the narrowest of parts in the environments and should measure distances between each other in order to enable the reconstruction of their positions relative to each other in offline analysis. Reaching those levels of miniaturization and enabling reconstruction functionality requires: 1) novel reconstruction algorithms that can deal with the specific measurement limitations and imperfections of millimetre-sized nodes, and 2) improved understanding of the relation between the highly constraint hardware design space of the sensor nodes and the reconstruction algorithms. To this end, this work provides a novel and highly robust sensor swarm reconstruction algorithm and studies the effect of hardware design trade-offs on its performance. Our findings based on extensive simulations, which push the reconstruction algorithm to its breaking point, provide important guidelines for the future development of millimetre-sized sensor nodes.
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In recent years, a step change has been seen in the rate of adoption of Industry 4.0 technologies by manufacturers and industrial organizations alike. This article discusses the current state of the art in the adoption of Industry 4.0 technologies within the construction industry. Increasing complexity in onsite construction projects coupled with the need for higher productivity is leading to increased interest in the potential use of Industry 4.0 technologies. This article discusses the relevance of the following key Industry 4.0 technologies to construction: data analytics and artificial intelligence, robotics and automation, building information management, sensors and wearables, digital twin, and industrial connectivity. Industrial connectivity is a key aspect as it ensures that all Industry 4.0 technologies are interconnected allowing the full benefits to be realized. This article also presents a research agenda for the adoption of Industry 4.0 technologies within the construction sector, a three-phase use of intelligent assets from the point of manufacture up to after build, and a four-staged R&D process for the implementation of smart wearables in a digital enhanced construction site.
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What does it mean to position anthropos in the center? Questioning anthropocentrism is far more than an academic exercise of debating the dominant cultural motif of placing humans at the center of material and ethical concerns. It is a fertile way of shifting the focus of attention away from the problem-symptoms of our time (be these symptoms as far-reaching as rapid climate change or as inconvenient as “just” jellyfish jamming the machine) to the investigation of root causes. And certainly the dominant beliefs, values, and attitudes guiding human action constitute a significant driver of the pressing problems of our day. https://doi.org/10.1007/s10624-014-9362-1 https://www.linkedin.com/in/helenkopnina/
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The term crowdsourcing was introduced by Jeff Howe (2006). It is the act of a company or organisation to take a function once performed by employees and outsourcing it to an undefined, and usually large, network of people in the form of an open call. As communication tools to organize work have become widely available, and a well-educated global work force has come online, crowdsourcing has become an increasingly important mechanism to organize work. We discuss a categorisation of crowdsourcing, its costs and benefits and several examples. The use of crowdsourcing begins with the question which strategic goal an organisation wants to achieve, and whether the benefits outweigh the costs. We give some recommendations for adopting crowdsourcing. This usually requires a certain amount of restructuring of existing workflows and a willingness to become more open which may or may not be a welcome side effect.
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In dit boekje over crowdsourcing worden een aantal relevante aspecten van crowdsourcing behandeld. Allereerst beschrijven we een aantal historische voorbeelden om duidelijk te maken dat crowdsourcing niet ontstaan is als gevolg van de opkomst van internet maar als fenomeen al bestond voor het internettijdperk. Door internet is het echter zonder meer eenvoudiger geworden crowdsourcing te organiseren en een veel grotere groepen deelnemers te betrekken. In de sectie 'Wisdom of the Crowds' gaan we in op de onderliggende principes van crowdsourcing. Crowdsourcing wordt vaak in één adem genoemd met de 'Wisdom of the Crowds', als onderliggend mechanisme hoe en waarom crowdsourcing werkt. We zullen echter concluderen dat de 'Wisdom of the Crowds' slechts één van de drie onderliggende principes van crowdsourcing is. Vervolgens gaan we in op de verschillende verschijningsvormen van crowdsourcing. Na een reflectie op bestaande voorstellen om tot een categorisering te komen van deze verschijningsvormen, presenteren we zeven categorieën op basis van het te onderscheiden doel. Bij de keuze om crowdsourcing in te zetten zal naar de kosten, risico's en baten ervan gekeken moeten worden. In de sectie 'Kosten en baten van crowdsourcing' bekijken we dit aspect voornamelijk vanuit het perspectief van de initiërende organisatie. Maar de kosten en baten voor de deelnemers zullen ook kort beschreven worden om te begrijpen wat hen drijft om aan een crowdsourcingproject mee te doen. In de laatste sectie beantwoorden we de vraag hoe crowdsourcing zo effectief en efficiënt mogelijk is in te zetten door naar een aantal implementatiemodellen te kijken en algemene adviezen te inventariseren. We sluiten af met een reflectie op de beschreven bevindingen.
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Kunstsocioloog Pascal Gielen verdedigt de hypothese dat de geglobaliseerde kunstwereld een ideaal terrein voor economische uitbuiting is. In de roes van de creative cities en de creatieve industrie omarmen overheden dit postfordistische werkmodel en sluiten zo naadloos aan bij de mondiale, neoliberale markteconomie. Gielen diept deze situatie uit en wil tegelijkertijd nieuwe alternatieven aanreiken, die de kunstwereld nodig heeft om haar eigen dynamiek en vrijheid te bewaren. Zijn zoektocht leidt hem naar plaatsen van gedeelde intimiteit en ‘slowability’ temidden van de hectische, globale flow van artistieke ontwikkelingen en trends. Deze derde editie is geheel herzien en bijgewerkt met Gielens meest recente inzichten in de politieke dimensies van kunst, autonomie en de relatie tussen kunst, ethiek en democratie.
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Swarm planning is a theory and practical approach to deal with uncertain futures. By anticipating scenarios such as a ‘post-carbon’ world and a ‘pre-adaptive’ landscape, it offers an alternative pathway to prepare for medium-term incremental and step changes. The focus is on the regional scale with a planning process to move from an unstable state (i.e. due to external impacts of climate change) towards a state of higher adaptive capacity. It increases the flexibility of spatial systems in two ways: assisting change in spatial land use over time; and catalysing the emergence of autonomous and more resilient developments. Swarm planning theory is used in two pilot designs and compared with regular planning processes. The results are presented in the form of new landscapes: the ‘Zero-Fossil Region’, where the design provides a spatial framework for a complete renewable energy supply, and the ‘Net Carbon Capture Landscape’, in which adaptation and mitigation strategies are designed to become carbon positive. The comparison illuminates the potential advantage of swarm planning to tackle climate change threats. La planification en essaims est une théorie et une approche pratique visant à traiter des avenirs incertains. Au moyen de scénarios prospectifs tels que celui d'un monde « post-carbone » et d'un paysage « préadaptatif », elle offre une voie alternative pour se préparer à des changements progressifs ou radicaux à moyen terme. L'accent est mis sur l’échelle régionale, avec un processus de planification permettant de passer d'un état instable (c'est-à-dire dû aux incidences extérieures du changement climatique) à un état présentant une plus grande capacité adaptative. Cela accroît de deux manières la flexibilité des systèmes spatiaux : en favorisant le changement dans l'utilisation spatiale des terrains au fil du temps; et en catalysant l’émergence de développements autonomes et plus résilients. La théorie de la planification en essaims est utilisée dans deux conceptions pilotes et comparée aux processus de planification habituels. Les résultats sont présentés sous la forme de nouveaux paysages : la « Région Zéro Energie Fossile », dans laquelle la conception fournit un cadre spatial permettant un approvisionnement énergétique entièrement renouvelable, et le « Paysage à Séquestration Nette de Carbone », dans lequel des stratégies d'adaptation et d'atténuation sont conçues pour assurer un bilan carbone positif. Cette comparaison se révèle éclairante quant à l'avantage potentiel de la planification en essaims pour s'attaquer aux menaces posées par le changement climatique. Mots clés: adaptation capacité adaptative cadre bâti résilience conception spatiale planification en essaims incertitude
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Flying insects like dragonflies, flies, bumblebees are able to couple hovering ability with the ability for a quick transition to forward flight. Therefore, they inspire us to investigate the application of swarms of flapping-wing mini-drones in horticulture. The production and trading of agricultural/horticultural goods account for the 9% of the Dutch gross domestic product. A significant part of the horticultural products are grown in greenhouses whose extension is becoming larger year by year. Swarms of bio-inspired mini-drones can be used in applications such as monitoring and control: the analysis of the data collected enables the greenhouse growers to achieve the optimal conditions for the plants health and thus a high productivity. Moreover, the bio-inspired mini-drones can detect eventual pest onset at plant level that leads to a strong reduction of chemicals utilization and an improvement of the food quality. The realization of these mini-drones is a multidisciplinary challenge as it requires a cross-domain collaboration between biologists, entomologists and engineers with expertise in robotics, mechanics, aerodynamics, electronics, etc. Moreover a co-creation based collaboration will be established with all the stakeholders involved. With this approach we can integrate technical and social-economic aspects and facilitate the adoption of this new technology that will make the Dutch horticulture industry more resilient and sustainable.
