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This article according to the current tendency of Chinese municipal transportation development, proposes the more reasonable solution about embedded platform. Connecting the MCU and the GPRS module through the serial ports, then transmits the AT instruction to the serial port. It causes the platform to be able to relation to the office terminal through the 3G network. Achieved that various sensors...
Based on the fabric image mosaics problem is researched. In the aspect of image edge extraction using cellular automaton model, carries on the research on the characteristics of fabric image mosaic of images, for the rough match of two images,to determine the overlapping area, in the range of the image mosaic, afterwards the image mosaic, the seam is eliminated by rapid and simple weighted smoothing...
Real-time sensing and detecting of underwater weld position is a key technique. Laser vision sensing is a good-prospect detecting method. Therein welding image processing and feature recognition are important parts. Noise features of underwater weld image in different water conditions are described. Underwater V-groove weld image pre-processing is discussed. Mean Shift algorithm application to underwater...
Welding is developing to automatization and robotization, and robot welding is an important development direction. A robot real-time seam tracking system based on laser vision is researched, which includes laser vision sensing and seam image acquisition, seam images recognition and extraction, system coordinates calibration and transformation, communication between PC and robot, control for robot...
The article adopt cellular automata theory to avoid the unpredictable in process of pattern generated with the constraint of cellular automata rule, it makes the cellular automata iterate into ideal patterns. With the computer simulation we can get the three basic fabric weave patterns which are plain weave, twill, satin. Compared with the traditional fabric weave design, the fabric weave generation...
According to the problem of the edge detection in image process, this article adopts two dimensional fuzzy cellular automata model, shape of grid is to be quadrangle, and maximin law is regarded as the conversion rule of the fuzzy cellular automata. And taking fabric defect image as an example, it makes a research on the method. The result shows that the method can get a definite edge, and have a...
The quasi-regular patterns generated from Hamiltonian has unique balanced symmetry. The patterns are quite suitable for the textile fabric. However the number of patterns just generated from Hamiltonian are limited. Therefore in this paper a 110 of functions built by the methods of Hamiltonian of superposition, nesting, combination and parameter variations, and it can increase the type and quantity...
It is difficult that the detection of printing fabric, because the more complex color and pictorial. This article opted for the fabric color difference detection problem. This article is on the basis of analyzing of the fuzzy color, the fuzzy method can be used to describe it, proposed based on fuzzy membership function method size of the fabric color identification methods, and gave the L * a * b...
A lot of function database were built by researching evolution law of uniform stochastic web and quasi-regular patterns mathematical model. It related quasi-regular pattern evolution mechanism with textile pattern design to translate formerly invisible information in mathematic area into visible textile pattern of art design. So the visual field on design could be effectively expanded, and formed...
The detection of fabric color difference and classification issues are studied. First, to the question of color differences and analysis of the characteristics of different color space, we chose L * a * b * color space model. In this method color difference is converted into geometric distance, so we can detect the color difference with the corresponding calculation. For the complexity of color difference...
Camera calibration and robot hand-eye calibration are important parts in applications of robots with visions. A way to simultaneously carry out camera calibration and robot hand-eye calibration is presented in robot welding system with laser vision. It is based on a certain relation between hand-eye matrix and matrix of robot hand frame to robot base frame. Calibration experiments are performed in...
Health monitoring of the hydropower turbine and timely identification of potential failure areas can prevent failure of the entire vertical axis hydropower turbine. A health monitoring system integrated within the turbine could locate blade failures, reducing hydropower turbine life-cycle costs and the costs of energy. System health management is a concerted effort with applicability to machinery...
An on line monitoring and diagnosis system for a modern power plant is essential as hydropower turbine failures are rarely single mode events. Normally, hydropower turbine deterioration is a slow process involving many factors. Cavitations are most severe, eventually forcing a shutdown for repair of affected parts. Cavitations phenomenon in an operating turbine are ubiquitous and unpredictable, and...
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