IoB-DTN: a lightweight DTN protocol for mobile IoT Applications to smart bike sharing systems

International audienceInformation and communication are key to the intelligent city of tomorrow. Many technologies have been designed to connect smart devices to the Internet. In particular, public transport systems have been used to collect data from mobile devices. Public bike sharing systems have been introduced as part of the urban transportation system and could be used as the support of a mobile sensor network. In this paper, we introduce the "Internet of Bikes" IoB-DTN protocol which applies De-lay/Disruption Tolerant Network (DTN) paradigm to the Internet of Things (IoT) applications running on urban bike sharing system based sensor network. We evaluate the performance of three variants of IoB-DTN with four buffer management policies. Our results show that limiting the number of packet copies sprayed in the network and prioritizing generated packets against relayed ones, improves on low loss rate and delivery delay in urban bicycle scenario

A Comparative Evaluation of the Performance of the multi-hop IoB-DTN routing protocol

International audienceFollowing the trend of the Internet of Thing, public transport systems are seen as an efficient bearer of mobile devices to generate and collect data in urban environments. Bicycle sharing system is one part of the city's larger transport system. In this article, we study the "Internet of Bikes" IoB-DTN protocol which applies the Delay Tolerant Network (DTN) paradigm to the Internet of Things (IoT) applications running on urban bike sharing system based sensor network. We evaluate the performances of the protocol with respect to the transmission power. Performances are measured in terms of delivery rate, delivery delay, throughput and energy cost. We also compare the multi-hop IoB-DTN protocol to a low-power wide-area network (LPWAN) technology. LPWAN have been designed to provide cost-effective wide area connectivity for small throughput IoT applications: multiyear lifetime and multikilometer range for battery-operated mobile devices. This work aims at providing network designers and managers insights on the most relevant technology for their urban applications that could run on bike sharing systems. To the best of our knowledge, this work is the first to provide a detailed performance comparison between multi-hop and long range DTN-like protocol being applied to mobile network IoT devices running a data collection applications in an urban environment

Evaluation du protocole IoB-DTN pour l’application IoT mobile

Communication is essential to the coordination of public transport systems. Nowadays,cities are facing an increasing number of bikes used by citizens therefore the need of monitoringand managing their traffic becomes crucial. Public bike sharing system has been introducedas an urban transportation system that can collect data from mobile devices. In this context,we introduce "IoB-DTN", a protocol based on the Delay/Disruption Tolerant Network (DTN)paradigm adapted for an IoT-like applications running on bike sharing system based sensor network.This document presents the simulation results obtained by evaluating the Binary Spray andWait inspired variant of IoB-DTN with four buffer management policies and by comparing threevariants of IoB-DTN by varying the number of packet copies sprayed in the network.La communication est essentielle à la coordination des systèmes de transportpublic. De nos jours, les villes font face à un nombre élevé de vélos utilisés par les citoyens,d’où la nécessité de surveiller et de gérer leur trafic. Le système de partage de vélo public a étéintroduit en tant que un système de transport urbain capable de collecter des donnés à partirdes appareils mobiles. Dans ce contexte, nous introduisons « IoB-DTN » un protocole basésur le paradigme DTN (Delay / Disruption Tolerant Network), adapté aux applications de typeIoT et fonctionnant sur un réseau de capteurs basé sur un système de partage de vélos. Cedocument présente les résultats de simulation obtenus en évaluant la variante Binary Spray andWait inspirée de IoB-DTN avec quatre politiques de gestion de tampons et en comparant troisvariantes de IoB-DTN en faisant varier le nombre de copies de paquets diffusés dans le réseau

Internet of Bikes: A DTN Protocol with Data Aggregation for Urban Data Collection

International audienceIntelligent Transport Systems (ITS) are an essential part of the global world. They play a substantial role for facing many issues such as traffic jams, high accident rates, unhealthy lifestyles, air pollution, etc. Public bike sharing system is one part of ITS and can be used to collect data from mobiles devices. In this paper, we propose an efficient, " Internet of Bikes " , IoB-DTN routing protocol based on data aggregation which applies the Delay Tolerant Network (DTN) paradigm to Internet of Things (IoT) applications running data collection on urban bike sharing system based sensor network. We propose and evaluate three variants of IoB-DTN: IoB based on spatial aggregation (IoB-SA), IoB based on temporal aggregation (IoB-TA) and IoB based on spatiotemporal aggregation (IoB-STA). The simulation results show that the three variants offer the best performances regarding several metrics, comparing to IoB-DTN without aggregation and the low-power long-range technology, LoRa type. In an urban application, the choice of the type of which variant of IoB should be used depends on the sensed values

Contextual sensing : integrating contextual information with human and technical geo-sensor information for smart cities

In this article we critically discuss the challenge of integrating contextual information, in particular spatiotemporal contextual information, with human and technical sensor information, which we approach from a geospatial perspective. We start by highlighting the significance of context in general and spatiotemporal context in particular and introduce a smart city model of interactions between humans, the environment, and technology, with context at the common interface. We then focus on both the intentional and the unintentional sensing capabilities of todays technologies and discuss current technological trends that we consider have the ability to enrich human and technical geo-sensor information with contextual detail. The different types of sensors used to collect contextual information are analyzed and sorted into three groups on the basis of names considering frequently used related terms, and characteristic contextual parameters. These three groups, namely technical in situ sensors, technical remote sensors, and human sensors are analyzed and linked to three dimensions involved in sensing (data generation, geographic phenomena, and type of sensing). In contrast to other scientific publications, we found a large number of technologies and applications using in situ and mobile technical sensors within the context of smart cities, and surprisingly limited use of remote sensing approaches. In this article we further provide a critical discussion of possible impacts and influences of both technical and human sensing approaches on society, pointing out that a larger number of sensors, increased fusion of information, and the use of standardized data formats and interfaces will not necessarily result in any improvement in the quality of life of the citizens of a smart city. This article seeks to improve our understanding of technical and human geo-sensing capabilities, and to demonstrate that the use of such sensors can facilitate the integration of different types of contextual information, thus providing an additional, namely the geo-spatial perspective on the future development of smart cities.(VLID)165464

Interactive Collaboration Platform in Augmented Reality

Várias ferramentas são utilizadas para a colaboração remota. No entanto, estas restringem o utilizador a um espaço virtual reduzido e não permitem uma interação com o mundo físico remoto. Este projeto propõe uma framework de Realidade Aumentada (AR) para colaboração remota, em que o utilizador remoto cria instruções num espaço virtual 3D que imita o ambiente do utilizador local. As instruções são apresentadas ao utilizador local usando realidade aumentada, ligando o mundo real ao virtual. O utilizador local tenta executar as tarefas de acordo com as instruções virtuais. Subsequentemente, o utilizador remoto recebe o feedback de volta, e, se positivo, continua com um novo conjunto de instruções.Numerous tools are used for remote collaboration, however, they restrict the users to a very confined virtual space and restrain interaction with the remote physical world. This project proposes an Augmented Reality (AR) framework for remote collaboration, in which the remote user creates instructions in a 3D virtual space which mimics the local user's environment. The instructions are then presented to the local user using augmented reality, linking the virtual and real world. The local user tries to execute the task according to the virtual instructions. Subsequently, the remote user receives feedback back and, if positive, proceeds with the next set of instructions

THE LOOPER CO-CREATION METHODOLOGY: ENHANCING URBAN TRANSFORMATION THROUGH PARTICIPATORY SENSING AND URBAN LIVING LABS IN LEARNING LOOPS

My research aims to test how the participatory co-creation methodology can help to solve different urban issues, and wants to show some practicalities to organisers about how to set up a Urban Living Lab to involve stakeholders in a co-creation process. This research involved both the study of the state of the art, but also some practical work to experience which are the positive results and found criticalities. The study of the state of the art gave me a more complete comprehension of the situation in which my research is framed, and it included: the Scandinavian \u2018cooperative design\u2019 in the \u201860s; De Carlo participatory design of the Terni project; the concept of \u2018Participatory design\u2019 in the USA during the \u201870s; Siza and the SAAL process in the \u201870s; the \u2018User-centred design\u2019 concept by Donald Dorman in the \u201880s; the idea of \u2018Participatory budgeting\u2019 in Portugal from the 2000 on. The methodology has been that of \u2018practice-led\u2019. In my work, I applied the co-creation methodology in different urban environments to: check which practices can be considered good or bad; cross data collected from the state of the art and the field research; compare collected data. The research I have done focused on an European Research Project, funded under the JPI Urban Europe, called LOOPER (Learning Loops in the Public Realm) which applies the learning loop to the co-design process. A comparison background case was used as well: the planning of the City of Sports in San Don\ue0 di Piave (Italy). This research has the ambition of creating a new way of decision-making which brings together all stakeholders, including policymakers, that iteratively learn how to address urban challenges. This then results in an implemented co-design process since stakeholders in the end are called to evaluate what they have done. Future implementations of my research would allow the creation of a complete set of guidelines that can be used to solve different urban issues, by triggering the co-creation methodology applied within Urban Living Labs

Robotics 2010

Without a doubt, robotics has made an incredible progress over the last decades. The vision of developing, designing and creating technical systems that help humans to achieve hard and complex tasks, has intelligently led to an incredible variety of solutions. There are barely technical fields that could exhibit more interdisciplinary interconnections like robotics. This fact is generated by highly complex challenges imposed by robotic systems, especially the requirement on intelligent and autonomous operation. This book tries to give an insight into the evolutionary process that takes place in robotics. It provides articles covering a wide range of this exciting area. The progress of technical challenges and concepts may illuminate the relationship between developments that seem to be completely different at first sight. The robotics remains an exciting scientific and engineering field. The community looks optimistically ahead and also looks forward for the future challenges and new development

Proceedings of Abstracts 10th International Conference on Air Quality Science and Application

This 10th International Conference in Air Quality - Science and Application is being held in the elegant and vibrant city of Milan, Italy. Our local hosts are ARIANET and ARPA Lombardia both of whom play a leading role in assessing and managing air pollution in the area. The meeting builds upon the series that began at the University of Hertfordshire, UK in July 1996. Subsequent meetings have been held at the Technical University of Madrid, Spain (1999), Loutraki, Greece (2001), Charles University, Prague, Czech Republic (2003), Valencia, Spain (2005), Cyprus (2007), Istanbul, Turkey (2009) Athens, Greece (2012) and Garmisch-Partenkirchen, Germany (2014). Over the last two decades controls to limit air pollution have increased but the problem of poor air quality persists in all cities of the world. Consequently, the issue of the quality of air that we breathe remains at the forefront of societal concerns and continues to demand the attention of scientists and policy makers to reduce health impacts and to achieve sustainable development. Although urbanisation is growing in terms of population, transport, energy consumption and utilities, science has shown that impact from air pollution in cities is not restricted to local scales but depends on contributions from regional and global scales including interactions with climate change. Despite improvements in technology, users still demand robust management and assessment tools to formulate effective control policies and strategies for reducing the health impact of air pollution. The topics of papers presented at the conference reflect the diversity of scales, processes and interactions affecting air pollution and its impact on health and the environment. As usual, the conference is stimulating cross-fertilisation of ideas and cooperation between the different air pollution science and user communities. In particular, there is greater involvement of city, regional and global air pollution, climate change, users and health communities at the meeting. This international conference brings together scientists, users and policy makers from across the globe to discuss the latest scientific advances in our understanding of air pollution and its impacts on our health and environment. In addition to the scientific advances, the conference will also seek to highlight applications and developments in management strategies and assessment tools for policy and decision makers. This volume presents a collection of abstracts of papers presented at the Conference. The main themes covered in the Conference include: Air quality and impact on regional to global scales Development/application/evaluation of air quality and related models Environmental and health impact resulting from air pollution Measurement of air pollutants and process studies Source apportionment and emission models/inventories Urban meteorology Special session: Air quality impacts of the increasing use of biomass fuels Special session: Air quality management for policy support and decisions Special session: Air pollution meteorology from local to global scales Special session: Climate change and human health Special Session: Modelling and measuring non-exhaust emissions from traffic Special session: Transport related air pollution - PM and its impact on cities and across EuropeFinal Published versio