نتایج جستجو برای: motion constraints

تعداد نتایج: 390583  

2004
Christophe Y. Vincent Tardi Tjahjadi

In the context ofreal-time collision /obstacle avoidance this paper investigates a direct -method of estimating dense scene structure and image motion. Our proposed method combines both stereo vision (invoIving geometric constraints) and optical flow (involving photometric constraints). It is applied to multiple motion images (i.e., images with vehicle ego-motion plus obstacle motion). Modijica...

Journal: :journal of optimization in industrial engineering 2013
moharam h. korayem mostafa nazemizadeh hamed rahimi nahooji

in this paper, finding dynamic load carrying capacity (dlcc) of flexible link manipulators in point to-point motion was formulated as an optimal control problem. the finite element method was employed for modelling and deriving the dynamic equations of the system. the study employed indirect solution of optimal control for system motion planning. due to offline nature of the method, many diffic...

2012
Francesco Maria Raimondi Maurizio Melluso

The cybercars are electric road wheeled non-holonomic vehicles with fully automated driving capabilities. They contribute to sustainable mobility and are employed as passenger vehicles. Non-holonomic mechanics describes the motion of the cybercar constrained by non-integrable constraints, i.e. constraints on the system velocities that do not arise from constraints on the configuration alone. Fi...

2004
Patrick PLEDEL

Motion generation gives the joint positions, speeds and accelerations of manipulators, at every moment. ?Ve assume that the motion are polynomial trajectories, that ensure joint acceleration continuity. Usual kinematical constraints, obtained with approximations, are not always suflcient, then we will focus on actuators constraints on voltages and currents.

1993
Thierry Fraichard Christian Laugier

| This paper addresses dynamic trajectory planning, which is deened as motion planning for a robot A moving in a dynamic workspace W, i.e. a workspace cluttered up with stationary and moving obstacles. Besides A is subject both to kinematic constraints, i.e. constraints involving the connguration parameters of A and their derivatives, and dynamic constraints, i.e. constraints on the forces, the...

Journal: :مدیریت اطلاعات سلامت 0
محمد جبرائیلی مربی، مدارک پزشکی، دانشگاه علوم پزشکی ارومیه، ارومیه، ایران زکیه پیری استادیار، مدیریت اطلاعات سلامت، دانشگاه علوم پزشکی تبریز، تبریز، ایران. بهلول رحیمی استادیار، انفورماتیک پزشکی، دانشگاه علوم پزشکی ارومیه، ارومیه، ایران نازآفرین قاسم زاده دانشجوی دکتری، اخلاق پزشکی، دانشگاه علوم پزشکی تهران، تهران، ایران. محمد قاسمی راد دانشجو، پزشکی عمومی، دانشگاه علوم پزشکی ارومیه، ارومیه، ایران. آیت محمودی دانشجو، پزشکی عمومی، دانشگاه علوم پزشکی ارومیه، ارومیه، ایران.

introduction: the critical dependence of healthcare services systems on information along with the indigenous restriction of paper documents in satisfying this need has caused a trend toward computer information systems. the main goal of such systems is to achieve electronic health records (ehr). however, implementation of ehr in healthcare organizations is difficult and complicated. this resea...

Journal: :مهندسی صنایع 0
الیپس مسیحی استادیار بخش مهندسی صنایع- دانشگاه تربیت مدرس امیرعباس ابوئی مهریزی دانش¬آموخته کارشناسی ارشد مهندسی صنایع دانشگاه تربیت مدرس و مربی بخش مهندسی صنایع مجتمع آموزش عالی بم

in this paper a new method is proposed for path planning of planar manipulators amid obstacles through mathematical programming in a way that the robot’s links avoid collision with obstacles throughout their motion from an initial to a goal configuration. after inputting the workspace geometry, the shortest feasible path for the robot’s end-effector is planned toward its goal position using gen...

2003
Javier Minguez Luis Montano

This paper presents a framework to use collision avoidance methods in the majority of existing mobile robots (that have any shape, and kinematic and dynamic constraints). The solution proposed is a vehicle abstraction layer based on transforming the space where these methods work, onto another one in which the constraints are implicitly represented. This space incorporates the vehicle kinematic...

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