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Aiming to the problems that the fluctuant processing and the incontinuity processing time frame may be arisen due to uncertainties of used parts, the remanufacturing processing quality control method is proposed based on dynamic, abnormal distributed EWMA control chart. The control chart is based on Wilcoxon rank-sum test in non-parametric method, using rank statistics to obtain the results that are...
In the present, the needs and tastes of the market are rapidly changing. The organizations need to adopt the principles of sustainable development in order to survive in a competitive environment. This means that organizations need to develop innovative products. In this study, we propose a methodology for product development, the method combines a Fuzzy-QFD technique for weighting the needs of the...
Harmonic drive transmission has been widely used in such accurate and reliable positioning and tracking fields as space mechanisms, robotics and high precision machines. However, the performance of harmonic drives is deteriorated by inherent nonlinear attributes including nonlinear stiffness, hysteresis, clearance, nonlinear friction, pure kinematic error and damping. Accurate modeling of the nonlinear...
The requirements for manufacturing tools are explored and related to mobile robot positioning systems in terms of flexibility and accuracy. The concept of the Laser Lighthouse featuring a single landmark beacon, is identified as the most flexible positioning system for deployment. Its positioning algorithm allows for positioning of a mobile robot in any pose and offers many clues for refinement.
This paper presents a distributive force sensing technology on a robotic foot, whose movement is controlled by pneumatic artificial muscles, during the contact process of a single step. The flexible force sensors on the robot foot and calibrated by characterizing the magnitude and location of the ground ration force on two different platforms. A control strategy for swinging motion of a single-leg...
Aiming at the problem that the traditional particle filter target tracking algorithm is poor in real time and has the degradation phenomenon, this paper proposes a hybrid tracking algorithm based on multi-technology fusion. The algorithm constructs the probability density function using unscented Kalman filter and adds the latest observations, so that the sample set is closer to the real state of...
Nowadays contemporary economic growth and increasing industrial needs demand robots to have a multifunctional properties such as a wide applicability, precision, wide workspace and simple robot-human interface. Modern, robot industry presents two types of robot architecture: serial and parallel, serial robots have a wide workspace, easy forward kinematics and have a wide applicability in industry,...
Path planning plays an important role in autonomous mobile robot. A lot of methods have been proposed in several decades. However, the complex environment in the real world becomes more challenging for robots. This paper conducts an experiment on evaluating path planning methods under different scenes. Four basic space configurations corresponding to specific indoor scenes are proposed. At the same...
An improved bidirectional RRT algorithm is proposed to solve the problem of path re-planning in a dynamic environment. The off-line path planning is carried out before the UAV takes off. During flight, if pop-up threat is detected, nodes which are affected by pop-up threat will be deleted and the remaining tree structure will be retained, then improved bidirectional RRT is used to path re-planning...
In the present paper, a composite formation strategy for multiple missiles is proposed, which is composed of the optimal formation configuration trajectory and a robust controller for trajectory tracking and formation keeping. Motion models describing multiple missiles formation configuration and keeping are established. Many constraints such as initial position, terminal position and collision avoidance...
This paper studies optimal consensus and formation coordination algorithms for both Single-input Single-output (SISO) and Multi-input Multi output (MIMO) multi-agent systems with high-order integral dynamics from a Linear Quadratic Regulator (LQR) perspective. Firstly, as a new approach using partitioning method, the high-order linear differential dynamic is modeled for SISO multi-agent systems. Then,...
This paper presents a unique design and development of Automated Pepper Sorting Machine (APSM) for industrial application. The design consists of several mechanical and electrical components such as motors, a micro-controller, hoper mechanism, suction tube, belt and pulley. In addition, a gantry crane is used in order to move the suction pipe across the conveyor belt to the exact position of the defective...
To be “fast enough” is a key issue for intelligent vehicle motion planning. The traditional simplicity high dimensional search approach for motion planning often suffers from huge statue-spaces, high time complexity and inefficiency. In this paper, we propose a method, increment-dimensional heuristic search to solve the problem. Our method employs a stepped-up heuristic search to reduce the searching...
In the space or plane, the coordinate of object is important in industrial application, like 3D measurement, reverse engineering and robot calibration. But it is hard to verify expect a laser tracker. In this study, a tracking system had been built by motion control card, servo motor, laser range finder and position sensing detector. PSD was placed on the object and keep laser beam locks on the origin...
This paper presents a symmetric winded PMSM which is connected by all in part coil to a supply system at low voltage of 48–100 V DC, developed by Research Center of Vehicle Industry in Szechenyi University. It has several benefits of this winding system its separate supply. The motor construction is slightly different from the general constructions; its running and control are different but on the...
This paper focuses on digital integrated circuit modeling method to characterize its function and transmission properties. The proposed method constructs the behavioral model of a digital integrated circuit, which is composed of the IO buffer section and functional section. The IO buffer section is described by IBIS, and the functional section is depicted by HDL. The two sections of the model are...
Multi-output power supply is widely used in electrical systems. It is necessary to establish a multi-output power supply model to verify the performance of the electrical system. However, little research work has paid attention to multi-output power supply modeling. This paper focuses on multi-output power supply modeling based on Multiple Input and Multiple Output (MIMO) method. The proposed method...
The aim of this paper is to solve a control problems of Direct Current (DC) servo motor system. Based on varying operating environment, the uncertainties, stochastic behaviors, external disturbance and transportation delayed of signal of the DC servo motor system are simultaneously discussed and investigated. Via modeling approach of Linear Parameter Varying (LPV) system and stochastic difference...
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