The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Spatial cognition is an important branch of cognition science and also very common in our daily life when people work together. In terms of human-robot spatial cognition interaction, it would be dramatic if the robot could interact with people like a human. So we designed an intelligent robot which could communicate with people in natural language and think on the human's perspective in spatial cognition...
Effective chemical plume tracing strategies are important for autonomous underwater vehicles (AUVs) to perform a variety of missions of searching for underwater targets, such as oil spill sources and deep-sea hydrothermal vents. In such circumstances where fluid flow direction cannot be measured by AUVs or fluid flow direction provides little or wrong information about the distribution of a dynamic...
Deep-sea hydrothermal plume tracing capability is important for autonomous underwater vehicles (AUVs) to efficiently perform hydrothermal vents prospecting missions. This paper addresses the hydrothermal non-buoyant plume tracing problem: an AUV tracks a hydrothermal non-buoyant plume in horizontal plane to its upflow source (the top terminal of a hydrothermal buoyant plume) and localize the source...
Multi-robot formation control has been studied in the literature assuming ideal surface that can provide sufficiently large friction as needed. However, in reality the friction is constrained by terrain characteristic and slip occurs due to insufficient friction. In this paper we investigate the effect of slip on the formation control problem of wheeled mobile robots (WMR). We explicitly model the...
In order to model a wheeled mobile robot (WMR) system to improve its maneuverability in a real environment, wheel dynamics, which may violate no-slipping and pure rolling constraints, needs to be studied. In this paper, wheel dynamics with slip is modeled and introduced into the robot overall dynamics. Wheel slip phenomenon is captured and at the same time accommodated. Considering both lateral and...
In this paper, the L2 performance rule is adopted to deal with the interference of the visual servoing system which affects image feature points. The system output disturbance is limited to gamma. The controller which includes the camera translational and rotational velocities is designed. In the case of unknown object depth, an adaptive nonlinear control scheme is used to estimate the pointspsila...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.