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It is becoming increasingly achievable for steel bridge structures, which are normally both inaccessible and hazardous for humans, to be inspected and maintained by autonomous robots. Steel bridges have been traditionally constructed by securing plate members together with rivets. However, rivets present a challenge for robots both in terms of cleaning and surface traversal. This paper presents a...
In cooperative spectrum sensing, wireless reporting channels (from local sensing nodes to fusion center) may suffer severe unreliability, which would make a correct local sensing result incorrect while received by fusion center. In this study, the reliability of the sensing result transmission from local sensor to fusion center is considered, and to make spectrum sensing more energy efficient, appropriate...
Assistive Robotics(AR) is a rapidly expanding field, implementing advanced intelligent machines capable of working collaboratively with a range of human users; as assistants, tools and as companions. These AR devices can provide assistance to stretched carers when transferring non-ambulatory patients safely. This paper presents the preliminary outcomes of the design, development and implementation...
Speech enhancement is an important task in many applications such as speech recognition. Conventional methods always require some principles by which to distinguish speech and noise and the most successful enhancement requires strong models for both speech and noise. However, if the noise actually encountered differs significantly from the system's assumptions, performance will rapidly declines. In...
Recent years has witnessed a rapid development of the wind power industry. It has become a concern for operators as to how to extract valuable information from the massive amount of historical data generated during operation of wind farm. A design plan of data mining software applied in wind farm is proposed in this paper. B/S mode and J2EE framework are adopted, and the software is composed of three...
The electric field of HV insulator distribute in infinite area. In order to calculate its electric field and potential distribution using FEM, it is inevitable to resolve the open field problem. In this paper, 2D electric field of HVDC insulator has been analyzed using FEM, in which the field boundary has been set by two methods. One is using artificial truncation boundary, the other is using far...
Many manufacturers and researchers have established various Intrusion Detection System (IDS) evaluation standards, most of which involve tests of IDS functions but neglect evaluation of IDS security. On the basis of IDS security evaluation, this paper describes segmented and multi-level mixed evaluation methods, classifies intrusions by type of TCP/IP, and illustrates the evaluation process by means...
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