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As the autonomous underwater vehicle (AUV) are considered for a wider variety of military and commercial application. Effective obstacle avoidance schemes are essential to the success missions, especially in offshore environment. Response time to a threat or incident for coastline security is an area needing improvement. Classical mapping and obstacle avoidance algorithm are too complex to be applied...
The Contextual Visual Dataspace (CVD) is a real-time representation of an automotive environment that combines automated 3D modeling and semantic labeling of a scene with dynamic object detection using infrastructure cameras. Our automotive active safety concept uses CVD to detect and track dynamic objects of interest, geo-register them into the semantically labeled 3D world space, analyze the paths...
The present technologies provide only assistance in a car for controlling the relative speed and distance between two vehicles in the same lane and permit to drive at a constant given speed in a Highway free of traffic and to maintain a constant distance with the vehicle ahead but not collision avoidance But the proposed system provides enhancements in the present adaptive cruise control system, which...
The article proposes a feedback control system for real-time navigation and obstacle avoidance that is made of two components: (i) a sensor-based, real-time model that generates and periodically updates the path on-line in order to avoid both known and unforeseen obstacles, and (ii) a feedback-control model that is capable of driving a unicycle vehicle along the collision free path. The system has...
Due to the improvement of technology, the way human being do things are changing day by day. Railway infrastructures and locomotives have also been enhanced with latest technologies. Japan and Europe are the frontiers to adopt state-of-the-art technologies to railway systems. However we discover that there is a possibility beyond the current available systems. Though it is not an easy task to step...
Selecting optimal routes to reduce travel time has been an important research area for urban traffic network managements. Various parameters such as route length, average speed and event situations need to be considered in the design of a route guidance system. In this paper, we develop a new navigation system based on the combination of fastest path search algorithm and travel time prediction method...
This paper presents a roll state estimator and a rollover prediction model based on a real-time roll estimator. The real-time roll estimator is designed to estimate the current roll angle and roll rate of the vehicle body from a 3DOF vehicle model. The veDYNA dynamic simulation software was used to verify the performance of roll motion prediction. The prediction model calculates the time it takes...
Making full uses of the processing performance and peripheral features of DSP TMS320DM6437 chip, we innovatively designed a vehicle collision avoidance system with low-cost, high reliability. The system can achieve functions of vehicle detection, vehicle distance measurement and auto-assisted control. Through simulations and experiments, we verified the correctness of the system's hardware platform,...
A new linear programming obstacle-avoided model is presented in target pursuit and obstacle-avoided problem. The obstacle-avoided model only has the linear program once for obstacle avoidance at one time step. The collision forecasting domain of vehicle and obstacle is obtained, which can prevent the happening of collision between vehicle and obstacle. In the target pursuit problem, the dynamic equation...
In this paper, a modeling, planning and remote control of a redundant manipulator for a semi-structured ldquounder vehiclerdquo environment is investigated. The geometric characteristic is abstracted by the distance laser sensory information and collision danger is measured in real time to activate the self-motion of reshaping the configuration. To make a real time solution, a intuitive collision...
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