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A general framework of robot manipulation planning for door opening task is proposed in this paper. First grasp pattern, including grasp point and method for various door handles, is defined. Second door-opening pattern, including task planning and trajectory planning, is also proposed. This paper utilizes Kinect as a vision sensor to collect point cloud data of the environment. Viewpoint Feature...
Tasks planning under uncertainties is one of fundamental skills for enabling autonomous robots to make proper manipulations in the complex environment. But owing to inexpressive representations, autonomous robots hardly conduct efficient tasks planning, especially in unknown conditions. The application of semantic knowledge in task planning is critically required in artificial intelligence research...
As the pioneers of robots for family services, the current cleaning and security robots cannot implement high-level and multi-task planning; an efficient solution to adapt the dynamic environments of household work is desired. To deal with this issue and enhance the flexibility of robots with partial observability, a HTN (Hierarchical Task Network) -based semantic planner integrating the robot's control...
In this paper, a novel type of parallel robot with four degree of freedoms is presented and investigated, which expends the family of few DOFs parallel robots. The parallel robot has two rotation and two translation degree of freedoms. The aspects about its configuration and kinematics analysis are discussed firstly, and a comparison of its singularity, workspace and dexterity are discussed in details...
A novel localization algorithm with low-cost sensors for cleaning robots is presented in this paper, which includes fusing the data of encoders and an electronic compass to estimate the posture state of the robot by using Kalman filter. It judges the confidence of the data of the electronic compass with magnetic field intensity; judges the confidence of data of odometer by the information of slippage...
A novel calibration approach to determine the coordinate transformation between the robot tool and the external axle worktable based on differential evolution algorithm is presented. The methodology can be divided into three different steps. Firstly, the transformation relationship between the robot wrist and the contact position sensor tool is calibrated. Secondly, the transformation relationship...
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