As the critical step in vision system of robot soccer, color image segmentation directly affects the object recognition and localization. According to the characteristic of illuminant variation and adversarial envirom...
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As the critical step in vision system of robot soccer, color image segmentation directly affects the object recognition and localization. According to the characteristic of illuminant variation and adversarial enviroment in humanoid robot soccor, a fast and adaptive clustering method for color image segmentation is proposed. It is based on coarse segmentation that separate the white and black pixels from the color image by taking constant thresholds of intensity and saturation of HSI color space. The number of clusters and cluster centers of color regions are got adaptively from the hue histogram without any iterative calculation. Experimental results show that the proposed method has better performance on accuracy, satisfies the real-time requirement with adaptive ability and needs to set less numbers of parameters, which has certain practical applications.
Aiming at a 5-TTRRT mobile, which consist of a rectangular Cartesian coordinate mechanism, a rotation mechanism and a swing mechanism. Its kinematics and dynamics modeling and analyzing method was researched. On the b...
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Aiming at a 5-TTRRT mobile, which consist of a rectangular Cartesian coordinate mechanism, a rotation mechanism and a swing mechanism. Its kinematics and dynamics modeling and analyzing method was researched. On the base of the Lagrange's equation, kinematics and dynamics model of the 5-TTRRT mobile robot were set up with it's branch bar's relative coordinates and movable platform's absolute coordinates used as generalized coordinates. Kinematics and dynamics Numeric simulation of the 5-TTRRT mobile robot was finished by use of Matlab software, simulation results show the correctness of the proposed models and the effectiveness, and so it is very valuable reference to contrail plan and motion control design of the 5-TTRRT mobile robot.
Dynamics is the bridge between design andcontrol,as space robots gain more and more importance in space operations,it was becoming imperative to understand their distinctive dynamics andcontrol characteristics. In t...
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Dynamics is the bridge between design andcontrol,as space robots gain more and more importance in space operations,it was becoming imperative to understand their distinctive dynamics andcontrol characteristics. In the absence of fixed base,the dynamic equation of system no longer be linearly parameterized,and the dynamics of space robotic systems could be quite complex and their control could be difficult. The dynamics of a dual-arm space robot system was systematically studied,and a dynamic model based on Kane-Huston's method and screw theory was presented in this paper. The numerical example shows that acting moment of a composition unit of the robot can be solved for given value of motion parameters with the exploitation of the dynamic model,vice versa. Furthermore,the planning technique for position/force control approach can be explored by designing the motion law for composition unit. Simulations results of the proposed dynamic model,which based on Kane-Huston's method and screw theory of the dual-arm space robot system,are very useful.
A novel approach to building an intelligent robot which can be expected to show many intelligent behaviors as people do,is *** approach exploits a computer device called Tesla S1070,a personal supercomputer,to control...
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A novel approach to building an intelligent robot which can be expected to show many intelligent behaviors as people do,is *** approach exploits a computer device called Tesla S1070,a personal supercomputer,to control a humanoid robot named *** Tesla S1070 acts as a human head,in which thousands of artificial neural network,the basis of an artificial brain(AB) ,evolve in a parallel way and act as a human *** CUDA(Computing Unified Device Architecture) technology is employed to solve the key problem i.e.,how to improve the evolution speed of thousands of neura *** general architecture of this approach,the reason why the Tesla S1070 is selected,and how the data structure of neural net modules should be modified to meet the demands of CUDA are presented in *** approach provides a method both for controlling a robot by the AB,and for demonstrating the power of the AB through a robot.
We focus on the object reaching problem for eyeon-handrobot system:how to control the end-effector to reach the exact position and orientation according to the visual information of *** exact position and orientation...
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We focus on the object reaching problem for eyeon-handrobot system:how to control the end-effector to reach the exact position and orientation according to the visual information of *** exact position and orientation are defined as"reaching pose"in this *** issues are mainly concerned and this leads to two contributions in this paper:(1) Find the relationship between reaching pose and object pose in the *** traditional methods based on complex calibration,supervised learning algorithm is introduced to learn the relationship based on training data which are collected *** method has two main advantages:1) it can be implemented with little human assistance and 2) it can handle non-linear case.(2) Represent the object pose in the image.A novel and robust algorithm is proposed to extract the feature *** feature points are robust and invariant under translation,rotation and *** those feature points are sorted into a sequence which corresponds to the input-variable *** sequence is also robust to make sure the consistency of the meanings of the input ***,the experiments show the validity of our method.
The special crane used by ship in this paper is a multi-joints and folding robot arm's work system. Because it needs to work in a variety of sea conditions and being affected by waves and so on, the high demands o...
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The special crane used by ship in this paper is a multi-joints and folding robot arm's work system. Because it needs to work in a variety of sea conditions and being affected by waves and so on, the high demands of the trajectory control should be required. For this kind of complex control system, a system which is analyzed and simulated by the combination of ADAMS (Automatic Dynamic Analysis of Mechanical Systems) modeling based on a virtual prototype and MATLAB control is built and designed. The composition and implementation of the system are presented in the paper. The fuzzy cerebella model articulation controller (FCMAC) was used to tracking control and dynamic simulation research was done for this system. The results showed the superiority of this method which made kinematics and dynamics modeling analysis on ship-borne special crane based on the ADAMS. The simulation results of controller showed FCMAC had good tracking effect. The research method has intuitive, efficient and convenient features, provide better thought for similar studies of complex mechanical system.
This paper firstly introduces the function and hardware components of the robot. Then the complex motion trajectory which must be implemented in small space is analyzed in accordance with the requirements of the contr...
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ISBN:
(纸本)9781424441334
This paper firstly introduces the function and hardware components of the robot. Then the complex motion trajectory which must be implemented in small space is analyzed in accordance with the requirements of the control of archwire bending. Various communications methods that are used to set up a communication between the robot and the host control computer is studied as well as the principle and realization of the robotcontrolling method which is used to make a preparation for constituting the overall framework of control software. Finally, the procedure method of control software that is based on Visual C++6.0 is analyzed. The control software is used to control the archwire bending robot in remote mode.
To solve the seam tracking problem of the mobile welding robot, a prototype of mobile welding robot with welding torch positioned at one side of welding robot is developed. And a new controller based on the dynamics o...
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The basic consideration of autonomous multi-robot system (MRS) control architecture is dealing with the whole system as a group, in which the individual robots interact with each other, avoid conflict, and cooperate t...
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ISBN:
(纸本)9780769538044
The basic consideration of autonomous multi-robot system (MRS) control architecture is dealing with the whole system as a group, in which the individual robots interact with each other, avoid conflict, and cooperate to accomplish the tasks reliably and efficiently in complex environment. This paper systematically surveys and summarizes related studies on control architectures for multi-robot systems from definition and evolutions to theories and technologies corresponded to research Field. Some representational demonstrations and instances are analyzed. Finally the future directions of autonomous MRS architecture are overlooked in the end.
The path following control problem for mobile robots with nonholonomic constraints is discussed. According to the description of robot oriented positioning control, a novel path following fuzzy controller which based ...
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