This paper provides an algorithm to grasp a moving object on a belt conveyer by a robot arm with 8 DOF. A method of recognition and position measurement of the moving object is developed and built in the robot arm with a visual servo system which is consisted of two CCD cameras. To find the best grasping posture of the robot arm, the robot coordinate system and the camera coordinate system is i...

This paper presents a vibration control method for the suppression of robotic arm. To understand causes in six-axis manipulator and then eliminate through an effective method, structure can be divided into two parts. First, variational mode decomposition (VMD) Hilbert–Huang transform (HHT) algorithm are integrated to analyze signal extract characteristics. Second, smooth trajectory planning is ...

Minimally invasive surgery (as previously discussed) is an operation technique advantageous for patients. However, surgeons have to contend with a number of disadvantages. With the development and commissioning of a robot supported, prototypic minimally invasive robotic surgery (MIRS) instrument the intracorporal manipulability as well as surgeon’s immersion will be enhanced. This paper will gi...

Robotic telesurgery is a promising application of robotics to medicine, aiming to enhance the dexterity and sensation of regular and minimally invasive surgery through using millimeter-scale robotic manipulators under control of the surgeon. With appropriate communication links, it would also be possible to perform remote surgery for care in rural areas where specialty care is unavailable, or t...

The foundation of surgical robotics is in the development of the robotic arm. This is a thorough review of the literature on the nature and development of this device with emphasis on surgical applications. We have reviewed the published literature and classified robotic arms by their application: show, industrial application, medical application, etc. There is a definite trend in the manufactu...

PURPOSE To investigate repositioning accuracy in particle radiotherapy in 6 degrees of freedom (DOF) and intensity-modulated radiotherapy (IMRT, 3 DOF) for two immobilization devices (Scotchcast masks vs thermoplastic head masks) currently in use at our institution for fractionated radiation therapy in head and neck cancer patients. METHODS AND MATERIALS Position verifications in patients tre...

Prediction is a powerful approach to minimize errors and control problems in familiar environments tasks. In human motor execution of sequential action, context effects can be observed, such as anticipation or predictive movement toward target objects, where later subactions are affected by the earlier subactions. this article, we present simulation framework for serial reaching task using 4-Do...

The need for high precision robotic systems has increased in recent years. Examples include automated assembly of complex electro-mechanical products such as disk drives, cameras, and medical devices. In this paper we present an optical sensor which can sense motion with better than 0.15 m resolution while also o ering the advantages of insusceptibility to ambient lights, high bandwidth, and a ...

This paper documents our eeorts to instantiate force-guided cooperative behaviors between robotic agents in the minifactory environment. Minifactory incorporates high-precision 2-DOF robotic agents to perform micron-level precision 4-DOF assembly tasks. Here we utilize two mini-factory agents to perform compliant insertion. We present a custom force sensing device which has been developed as we...

We present a novel approach for incorporating collision avoidance into trajectory optimization as a method of solving robotic motion planning problems. At the core of our approach are (i) A sequential convex optimization procedure, which penalizes collisions with a hinge loss and increases the penalty coefficients in an outer loop as necessary. (ii) An efficient formulation of the no-collisions...