Dynamic speed planning for safe navigation

نویسندگان

  • Anthony Mandow
  • Victor F. Muñoz
  • R. Fernandez
  • Alfonso García-Cerezo
چکیده

The paper deals with speed control for autonomous mobile robots. First a trajectory planner attaches a speed component to the postures of a path by considering speed limitations introduced by the vehicle and by task specifications. In order to provide robustness during task execution in the real world, environment feedback is used to dynamically adjust the speed of the vehicle to the presence of unexpected obstacles, both static and mobile. This is accomplished by combining the planned speed profile with the outputs of two reactive controllers. The system has been successfully implemented within the control architecture of the RAM-2 mobile robot.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Safe and high speed navigation of a patrol robot in occluded dynamic obstacles

It is difficult to detect all dynamic obstacles around a robot due to the limitation of field of view. Visibility information is necessary in order to avoid collisions. In previous research, we proposed a path planning and speed control scheme that could be applied to a robot to avoid occluded dynamic obstacles. In this paper experimental verifications of the proposed scheme for various environ...

متن کامل

A Navigation System for Autonomous Robot Operating in Unknown and Dynamic Environment: Escaping Algorithm

In this study, the problem of navigation in dynamic and unknown environment is investigated and a navigation method based on force field approach is suggested. It is assumed that the robot performs navigation in...

متن کامل

Modeling of ship trajectory in collision situations by an evolutionary algorithm

|For a given circumstance (i.e., a collision situation at sea) a decision support system for navigation should help the operator to choose a proper maneuver, teach them good habits, and enhance their general intuition on how to behave in similar situations in the future. By taking into account certain boundaries of the maneuvering region along with information on navigation obstacles and other ...

متن کامل

High-Speed Navigation Using the Global Dynamic Window Approach

Many applications in mobile robotics require the safe execution of a collision-free motion to a goal position. Planning approaches are well suited for achieving a goal position in known static environments, while real-time obstacle avoidance methods allow reactive motion behavior in dynamic and unknown environments. This paper proposes the global dynamic window approach as a generatlization of ...

متن کامل

Steps Towards Safe Navigation in Open and Dynamic Environments

Autonomous navigation in open and dynamic environments is an important challenge, requiring to solve several difficult research problems located on the cutting edge of the state of the art. Bassically, these problems can be classified into three main categories: SLAM in dynamic environments; Detection, characterization, and behavior prediction of the potential moving obstacles; On-line motion p...

متن کامل

RRT Path Planning using a Dynamic Vehicle Model - Path Planning using a Dynamic Vehicle Model Romain Pepy, Alain Lambert, Hugues Mounier Information and Communication Technologies, 2006. ICTTA '06. 2nd

This paper addresses the problem of path plannrng using a dynamic vehicle model. Previous works which include a basic kinematic model generate paths that are only realistic at very low speed. By considering higher vehicle speed during navigation, the vehicle can significantly deviate from the planned trajectory. Consequently, the planned path becomes unusable for the mission achievement. So, to...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1997