This paper presents a new algorithm which generates time-optimal trajectories given a path as input. The algorithm improves on previous approaches by generically handling a broader class of constraints on the dynamics. It eliminates the need for heuristics to select trajectory segments that are part of the optimal trajectory through an exhaustive, but efficient search. We also present an algori...

The trajectory planning, which is known as a movement from starting to end point by satisfying the constraints along the path is an essential part of robot motion planning. A common way to create trajectories is to deal with polynomials which have independent coefficients. This paper presents a trajectory formulation as well as a procedure to arrange the suitable trajectories for applications. ...

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As part of an initiative to develop evidence-based practice at the Northern General Hospital, Sheffield, a three-part project was undertaken. The aims were to identify barriers to using research in nursing, establish a baseline of nurses' knowledge and its influence on their practice in one essential area of nursing care--pressure damage prevention--and develop a strategy for change which took ...

Despite the well established policy of ‘shifting’ care from hospitals to the community[1], the overall proportion of nursing staff employed to provide general nursing care to people in their own homes has changed little. Specifically, the number of District Nurses is reported to have decreased by 40% in the last decade[2]. In this Policy+, we review data on the district nursing workforce, look ...

In this paper, Fuzzy Logic Controller (FLC) is implemented in the AR.Drone quadrotor in order to make it follow a given trajectory reference. The distance between the position and angle of the AR.Drone to the reference point is used as the input of the FLC. As for the output, pitch value and yaw rate will be the controlling signal for the AR.Drone. The navigation data of the AR.Drone are forwar...

Autonomous navigation of a mobile robot is a widely studied problem in the robotics community. Most robots designed for this task are equipped with onboard sensor(s) to perceive the external world (sonars, laser telemeters, camera). Two main approaches to autonomous navigation have been proposed: reactive navigation, where the robot uses only its current perceptions to move and explore without ...

A method for the determination of the trajectory of a ballistic missile over a rotating, spherical Earth given only the launch position and impact point has been developed. The iterative solution presented uses a state transition matrix to correct the initial conditions of the ballistic missile state vector based upon deviations from a desired set of final conditions. A six-degree-of-freedom si...

The study of autonomous planning of UAVs (Unmanned Aerial Vehicles) flyable on-line path to adapt unstructured environment and improve manoeuvring warfare capability has an important practical significance. A path planning algorithm on-line of UAV based on Pythagorean Hodograph (PH) curve is put forward, which can consider the kinematics and dynamic constraints. The effect of the key parameters...