2,274 research outputs found

    An Intelligent System-on-a-Chip for a Real-Time Assessment of Fuel Consumption to Promote Eco-Driving

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    Pollution that originates from automobiles is a concern in the current world, not only because of global warming, but also due to the harmful effects on people’s health and lives. Despite regulations on exhaust gas emissions being applied, minimizing unsuitable driving habits that cause elevated fuel consumption and emissions would achieve further reductions. For that reason, this work proposes a self-organized map (SOM)-based intelligent system in order to provide drivers with eco-driving-intended driving style (DS) recommendations. The development of the DS advisor uses driving data from the Uyanik instrumented car. The system classifies drivers regarding the underlying causes of non-optimal DSs from the eco-driving viewpoint. When compared with other solutions, the main advantage of this approach is the personalization of the recommendations that are provided to motorists, comprising the handling of the pedals and the gearbox, with potential improvements in both fuel consumption and emissions ranging from the 9.5% to the 31.5%, or even higher for drivers that are strongly engaged with the system. It was successfully implemented using a field-programmable gate array (FPGA) device of the Xilinx ZynQ programmable system-on-a-chip (PSoC) family. This SOM-based system allows for real-time implementation, state-of-the-art timing performances, and low power consumption, which are suitable for developing advanced driving assistance systems (ADASs).This work was supported in part by the Spanish AEI and European FEDER funds under Grant TEC2016-77618-R (AEI/FEDER, UE) and by the University of the Basque Country under Grant GIU18/122

    The three second time window in poems and language processing in general: Complementarity of discrete timing and temporal continuity

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    The existence of discrete time windows has triggered the search for permanence and continuity for artists (including poets) in multiple cultures throughout history. In this article, we argue that there exists a 3‐s window in the temporal structure of poems as well as in the aesthetic appreciation of poetry by reviewing previous literature on the temporal aspects of poems. This 3‐s window can also be considered to be a general temporal machinery underlying human behavior, including language production and perception in general. The reafference principle has provided us a unique frame for understanding cognitive processes. However, “time” was absent in the original two‐stage reafference principle. Therefore, we propose a three‐stage cycling model of language perception, taking into account time and time windows. We also inspect the possible neural implementations of the three stages: the generation, maintenance, and comparison of predictions (as well as the integration of predictions into the representational context). These three stages are embedded in a temporal window of ~3 s and are repeated in a cycling mode, resulting in the representational context being continuously updated. Thus, it is possible that “semantics” could be carried forward across different time windows, being a “glue” linking the discrete time windows and thus achieving the subjective feeling of temporal continuity. Candidates of such “semantic glue” could include semantic and syntactic structures as well as identity and emotion

    Intelligent Simulation Modeling of a Flexible Manufacturing System with Automated Guided Vehicles

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    Although simulation is a very flexible and cost effective problem solving technique, it has been traditionally limited to building models which are merely descriptive of the system under study. Relatively new approaches combine improvement heuristics and artificial intelligence with simulation to provide prescriptive power in simulation modeling. This study demonstrates the synergy obtained by bringing together the "learning automata theory" and simulation analysis. Intelligent objects are embedded in the simulation model of a Flexible Manufacturing System (FMS), in which Automated Guided Vehicles (AGVs) serve as the material handling system between four unique workcenters. The objective of the study is to find satisfactory AGV routing patterns along available paths to minimize the mean time spent by different kinds of parts in the system. System parameters such as different part routing and processing time requirements, arrivals distribution, number of palettes, available paths between workcenters, number and speed of AGVs can be defined by the user. The network of learning automata acts as the decision maker driving the simulation, and the FMS model acts as the training environment for the automata network; providing realistic, yet cost-effective and risk-free feedback. Object oriented design and implementation of the simulation model with a process oriented world view, graphical animation and visually interactive simulation (using GUI objects such as windows, menus, dialog boxes; mouse sensitive dynamic automaton trace charts and dynamic graphical statistical monitoring) are other issues dealt with in the study

    Testing models of driver behaviour

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    Testing models of driver behaviour

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    Kooperative, manöverbasierte Automation und Arbitrierung als Bausteine fĂŒr hochautomatisiertes Fahren

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    Bei der Entwicklung von hochautomatisierten Fahrzeugen ist eine intuitive Bedienbarkeit fĂŒr den Fahrer von entscheidender Bedeutung. Die kooperative Kontrolle („Cooperative Control“) stellt ein viel versprechendes Konzept dar, wie eine Automation in einem hochautomatisierten Fahrzeug gestaltet werden kann, so dass eine gewinnbringende Zusammenarbeit zwischen Automation und Fahrer möglich wird. Nach dem Aufzeigen von Anforderungen wird eine konkrete Ausgestaltung einer solchen kooperativen Automation vorgestellt. Die Arbitrierung bietet eine Strategie zur Abstimmung ĂŒber auszufĂŒhrende Handlungen zwischen Fahrer und kooperativer Automation. Die Umsetzbarkeit der Konzepte wird am Beispiel eines prototypischen Systems zum hochautomatisierten Fahren mit integrierter LĂ€ngs- und QuerfĂŒhrung gezeigt
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