thanks to the advances in Artificial Intelligence (AI), and in particular in automated planning & scheduling and execution, goal-oriented controllers have being developed to test degrees of autonomy for robotics s...
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ISBN:
(纸本)9781479956203
thanks to the advances in Artificial Intelligence (AI), and in particular in automated planning & scheduling and execution, goal-oriented controllers have being developed to test degrees of autonomy for robotics systems in challenging scenarios. Despite these efforts, there is a lack of methodology for approaching the design of deliberative systems or the choice of the critical parameters or metrics under which the control systems can be compared during execution or deliberation. this paper presents the first initial results of the On-Ground Autonomy Test Environment (OGATE) over a year after its initiation. It is an ESA funded project that aims to facilitate accurate experiments on planning and execution systems for robotics. We present features of an initial instance of such system built to support the GOAC robotic software, an ESA project to demonstrate key concepts in autonomy for ESA missions
the Indoor Navigation Framework we have proposed allows any wheelchair user to be guided to a desired location on his own, as long as the building itself is adopted to the novel system. Unlike the state of the art, wh...
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ISBN:
(纸本)9781479938575
the Indoor Navigation Framework we have proposed allows any wheelchair user to be guided to a desired location on his own, as long as the building itself is adopted to the novel system. Unlike the state of the art, where no automation exists for guiding a wheelchair in modern buildings, this allows the owner of the least sophisticated wheelchair to explore public buildings with more ease than a normal person. In this project we intend to implement a working prototype, which fulfills the fundamental functions of the system. It can be further customized to the needs of system owners.
the quality of oil determines the status and life of the devices. However, most Chinese vessels have not equipped with on-line oil quality testing facilities. therefore, a special on-line oil quality monitoring system...
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the dynamic bandwidth allocation (DBA) process in the modern passive optical networks (PONs) is crucial since it greatly influences the whole network performance. Recently, the latest new generation PON (NGPON) standa...
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ISBN:
(纸本)9789897580444
the dynamic bandwidth allocation (DBA) process in the modern passive optical networks (PONs) is crucial since it greatly influences the whole network performance. Recently, the latest new generation PON (NGPON) standard, known as 10-gigabit-capable passive optical network (XG-PON), standardized by the international telecommunication union telecommunication standardization sector (ITU-T), emerges as one of the most efficient access networking framework to cope withthe demanding needs of the fiber to the x (FTTX) paradigm, where x stands for home (FTth), bulding (FTTB), or curve (FTTC). Motivated by the fact that the ITU-T specifications leave the bandwidth allocation process open for development by both industry and academia, we propose a novel DBA scheme for effectively delivering data in the upstream direction. Our idea is based on a subtle suggestion induced by the XG-PON specifications;each developed DBA method should combine both status reporting (SR) and traffic monitoring (TM) techniques. this means that a XGPON framework should be cognitive enough in order to be able either to request bandwidth reporting from the connected users or estimate users' bandwidth demands or both. In this article we cover this gap by proposing a robust learning from experience method by utilizing a powerful yet simple tool, the learning automata (LAs). By combining SR and TM methods, the proposed hybrid scheme, called hybrid reporting allocation (HYRA), is capable of taking efficient decisions on deciding when SR or TM method should be employed so as to maximize the efficacy of the bandwidth allocation process. Simulation results reveal the superiority of our scheme in terms of average packet delay offering up to 33% improvement.
the article introduces the reasons for realisation of the remote laboratory of computer networks which originate from the comparisons of the alternatives of working withthe specialised networking hardware. these use ...
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For chemical disaster having a wide range, often accompanied by fire, smoke, toxic gases and other complex conditions, it make use of swarm robotics to achieve rapid access to information on the disaster site. this st...
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this paper deals withthe problem of unicycle mobile robot navigation in cluttered environments. It presents in particular an approach which permits to verify the stability of the control architecture of mobile robot ...
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ISBN:
(纸本)9781479979202
this paper deals withthe problem of unicycle mobile robot navigation in cluttered environments. It presents in particular an approach which permits to verify the stability of the control architecture of mobile robot using the reachability analysis. To perform this analysis, we consider the robot as a hybrid dynamic system. the latter is modeled by an hybrid automata in order to verify the reachability property by using the interval analysis. the simulation results validate the proposed control architecture.
CREA robot is designed to climb up concrete walls. the robot uses the suction mechanism to provide adhesion and wheel mechanism for locomotion. Eleven chambers which are connected to one common reservoir are responsib...
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ISBN:
(纸本)9781479979202
CREA robot is designed to climb up concrete walls. the robot uses the suction mechanism to provide adhesion and wheel mechanism for locomotion. Eleven chambers which are connected to one common reservoir are responsible to produce adhesion force. A controller is developed to independently control each chamber while satisfying certain criteria on the safety of the robot. It is also designed to reach minimum friction between active inflatable seals and wall. In conclusion, the controller is able to successfully meet the conditions of stability, minimum friction and safety.
this paper discusses the placement of cameras in order to achieve the highest possible localization accuracy. It is reached by using several cameras with redundant fields of views. A camera model is introduced and the...
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ISBN:
(纸本)9781479979202
this paper discusses the placement of cameras in order to achieve the highest possible localization accuracy. It is reached by using several cameras with redundant fields of views. A camera model is introduced and the components which cause the localization errors are identified. the localization accuracy measure is defined for one and for multiple cameras too. the problem of adding a new camera to the system in order to improve the accuracy is formulated. the method for finding the optimal placement of this new camera is presented. Some features are enumerated which can be applied for getting an advanced method.
In this paper, we focus on the problem of optimally placing a mixture of static and PTZ cameras based on the resolution requirement, this configuration will be useful later cameras planning. the static cameras used fo...
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In this paper, we focus on the problem of optimally placing a mixture of static and PTZ cameras based on the resolution requirement, this configuration will be useful later cameras planning. the static cameras used for detecting an object or an event, this result is used to select the best PTZ camera within the network to identify or recognize this moving object or event. In our work the monitoring area is represented by a grid of points distributed uniformly or randomly (S. thrun, 2002), then using surface-projected monitoring area and camera sensing model we develop a binary integer programming algorithm. the results of the algorithm are applied successfully to a variety of simulated scenarios.
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