This paper reviews the design and development of a human arm-like mechanical manipulator, which is the basis of research currently being undertaken at Lancaster University, in order to address the complex tasks found ...
详细信息
ISBN:
(纸本)9728865600
This paper reviews the design and development of a human arm-like mechanical manipulator, which is the basis of research currently being undertaken at Lancaster University, in order to address the complex tasks found in the rapidly expanding field of nuclear decommissioning. The requirements of multi-arm robot architecture for use in decommissioning tasks are discussed. The manipulators are integrated to work cooperatively and perform similar functions to humans in both scale and dexterity. The role that automation and robotics can play in enabling quicker demolition and at the same time reducing the exposure of workers to harmful radiation is examined. The key issues surrounding radioactive materials and safe dose levels are explained. The different stages of a particular system engineering process are outlined together with the essential physical steps. The paper will conclude by identifying the compliance of the system engineering used here with the requirements of designing a multi-arm robot.
The ability to sense tactile feedback is important for many robotic grasping and manipulating tasks. However, common force sensors are expensive. Therefore, we investigate various force measuring principles and review...
详细信息
ISBN:
(纸本)9781509060887
The ability to sense tactile feedback is important for many robotic grasping and manipulating tasks. However, common force sensors are expensive. Therefore, we investigate various force measuring principles and review existing sensor concepts for mobile robotic applications. The results lead to a concept of a low-cost, two-finger manipulator with force sensing ability using embedded hall sensors in flexible material. The gripper is produced by rapid prototyping. A calibration method is presented. Furthermore, we evaluate and present the idle state, local sensitivity, and material influence of the two-finger manipulator. As a result, it is possible to successfully handle sensitive objects with the sensitive areas of the fingers, although a bias was measures while handling ferromagnetic materials. With a priori knowledge of the objects, this effect can be compensated.
The present book includes a set of selected papers from the seventh "internationalconference on informatics in control automation and robotics"(ICINCO 2010), held in Madeira, Portugal, from 15 to 18 June 20...
ISBN:
(数字)9783642195396
ISBN:
(纸本)9783642195389
The present book includes a set of selected papers from the seventh "internationalconference on informatics in control automation and robotics"(ICINCO 2010), held in Madeira, Portugal, from 15 to 18 June 2010. The conference was organized in three simultaneous tracks: "Intelligent control Systems and Optimization", "robotics and automation" and "Signal Processing, Systems Modeling and control". The book is based on the same *** received 320 paper submissions, not including those of workshops or special sessions, from 57 countries, in all continents. After a double blind paper review performed by the Program Committee only 27 submissions were accepted as full papers and thus selected for oral presentation, leading to a full paper acceptance ratio of 8%. Additional papers were accepted as short papers and posters. A further refinement was made after the conference, based also on the assessment of presentation quality, so that this book includes the extended and revised versions of the very best papers of ICINCO *** to high quality standards is a major concern of ICINCO that will be maintained in the next editions of this conference, including not only the stringent paper acceptance ratios but also the quality of the program committee, keynote lectures, workshops and logistics.
The autonomous robot formation maintenance problem can be approached by considering local information only. This approach is more realistic than using global information, but presents a troop deformation drawback. Thi...
详细信息
ISBN:
(纸本)9728865600
The autonomous robot formation maintenance problem can be approached by considering local information only. This approach is more realistic than using global information, but presents a troop deformation drawback. This paper performs a step forward in local information usage for formation maintenance by analyzing a parameterization of different basic behaviors. Formation maintenance emerges from the combination of these simple behaviors, and its overall accuracy is empirically optimized by tuning behavior parameters. In particular, we study and characterize three different formations: queue or column (as for ants), inverted V or wedge (as for birds or planes) and rectangle (for manipulus antique roman troop formations). This paper describes simulated robots that incorporate a unique set of basic behaviors from which formation maintenance emerges. These simple behaviors provide formation robustness and are parameterized in order to minimize deformation while following a trajectory.
In current public spaces, it is difficult to maintain security and determine if someone is a potential threat. In most cases, reactive approaches are applied after an event occurs to mitigate the threat, rather than b...
详细信息
ISBN:
(纸本)9781509060887
In current public spaces, it is difficult to maintain security and determine if someone is a potential threat. In most cases, reactive approaches are applied after an event occurs to mitigate the threat, rather than being proactive and attempt to prevent the event from occurring in the first place. Modern CCTV camera surveillance can efficiently track users and match against a watch list for potential threats, but it is up to the surveillance operator to analyse user behaviour that may classify a user as a threat. However, this approach is subject to human error and requires human resources to facilitate it. This article proposes a technology to automate this process by using the existing camera infrastructure and using affective computing methods for user threat profiling. The preliminary results show that certain environments that allow for a profile view, yield good classification results. Although there are certain structural and environmental constraints, the technology is viable and warrants further investigation.
We present a distributed control architecture for the integration of an experimental robotic cell with 3D visual servoing. This architecture allows us to control a 6 DOF robot in hard Real-Time and the global experime...
详细信息
ISBN:
(纸本)9728865600
We present a distributed control architecture for the integration of an experimental robotic cell with 3D visual servoing. This architecture allows us to control a 6 DOF robot in hard Real-Time and the global experimental system in soft Real-Time. We have developed distributed applications, based on this architecture, for the robot control (whose characteristics permit us to teleoperate the robot), the 3D data acquisition and for an advanced simulation and visualization. These applications, together with the algorithms developed by our computer vision research group, allow a full intelligent robotic manipulation in complex scenes to be made. This can be useful in manufacturing environments where an automated piece manipulation is necessary.
Studies on human visual perception measurement for perceptual robotics are described. The visual perception is mathematically modelled as a probabilistic process obtaining and interpreting visual data from an environm...
详细信息
ISBN:
(纸本)9728865600
Studies on human visual perception measurement for perceptual robotics are described. The visual perception is mathematically modelled as a probabilistic process obtaining and interpreting visual data from an environment. The measurement involves visual openness perception in virtual reality, which has direct implications for navigation issues of actual autonomous robotics. The perception is quantified by means of a mapping function which converts a distance to an elemental perception estimate. The measurement is carried out with the averaging of the elemental perceptions in real time. This is accomplished by means of exponential averaging. The mapping function parameters are optimized uniquely by means of genetic algorithm approach where the data set for model development consists of a number of perception data samples. These are obtained from individuals who are confronted with a number of scenes and asked for their perceptual openness statements. Based on this data, a perception model is developed for a virtual robot where the simulated vision interaction of the robot with the environment is converted to visual openness estimation through the model output. The model outcome is essential visual information for the navigation of an autonomous perceptual robot.
The prestressed concrete beams are increasingly widely used in bridges, large span building structures, so old prestressed structural safety of the performance testing is increasingly important. Because nondestructive...
详细信息
ISBN:
(纸本)9781424451944
The prestressed concrete beams are increasingly widely used in bridges, large span building structures, so old prestressed structural safety of the performance testing is increasingly important. Because nondestructive detection testing do not damage the structure itself, it is one of the best detection methods. Through the five prestressed concrete beams static load test, measured the deflection and strain. The results show that, through the beam deflection, strain and other modal parameters of the test can effectively identify the health status of prestressed concrete beams for the bridge in the future provide a valuable reference for nondestructive testing.
Electronic equipments may be disturbed by electromagnetic pulse during operation in some fields. Gas discharge tube is usually added as surge protection device to protect electronic equipment from electromagnetic puls...
详细信息
ISBN:
(纸本)9781450365307
Electronic equipments may be disturbed by electromagnetic pulse during operation in some fields. Gas discharge tube is usually added as surge protection device to protect electronic equipment from electromagnetic pulse. Electromagnetic pulse current injection experiment is used to test gas discharge tube's protective characteristics. In order to reduce experimental times and guide experimental process, Elman neural network was used to predict electromagnetic pulse responses of gas discharge tube. Elman neural network is a recurrent neural network with local memory units and local feedback connections. Experiments showed that the Elman neural network model on gas discharge tube at different grades of voltage injection experiments have had better prediction results.
Video action recognition is widely applied in video indexing, intelligent surveil-lance, multimedia understanding, and other fields. Recently, it was greatly improved by incorporating the learning of deep information ...
详细信息
ISBN:
(纸本)9781450365307
Video action recognition is widely applied in video indexing, intelligent surveil-lance, multimedia understanding, and other fields. Recently, it was greatly improved by incorporating the learning of deep information using convolutional neural network (ConvNet). In this paper, we proposed a 3D ConvNet-GRU architecture to learn deep information for action recognition. Specifically, we use 3D ConvNet to learn spatiotemporal information from short RGB clips and optical flow clips, and impose gated recurrent unit (GRU) on the spatiotemporal information to model the temporal evolution for action recognition. The experimental results show that our 3D ConvNet-GRU method is effective to model temporal evolution for action and achieves recognition performance comparable to that of state-of-the-art methods.
暂无评论