Abstract
A necessity to improve the quality of textile products and reduce production costs associated with losses of raw materials in the processing requires the development of automated quality inspection systems for all steps of textile production. Promising is the use of contactless methods of nondestructive testing based on the methods of vision. The object of research is a device to inspect the shape of textile packages by shadow projection method for monitoring in real time. A series of experiments and theoretical research are conducted aimed at the study of structural parameters of the device to inspect the shape of the packing by the shadow projection method, providing the required accuracy. On the basis of the mutual arrangement of the structural elements of the light source, camera shutter and inspected bobbin, the impact of each of them on the scale transformation error for inspection of the package shape of cross winding is defined. This result allows to select the mutual arrangement of design elements and to set their permissible variations of devices to inspect the package shape of cross winding by the shadow projection method. Inspection of package shape in the process of their developments will prevent the formation of defective packages. It will increase a percentage of defect packages and the loss of raw material in the textile industry, which ultimately will raise its efficiency.
Highlights
Textile industry effectiveness is closely connected with the provision of the required quality for all technological steps
One of the most important processes in the textile industry is the winding process, which resulted in for ming textile packages of various shapes
One of the most important indi cators of quality of textile packages is their deviation from a given shape
Summary
1. Passenger transport correspondence between cities with different number of inhabitants is experimentally defined. The quantitative indicators of passenger transport correspondence are obtained. It is established that intercity passenger transport correspondence can be predicted. It is proved that gravity modeling of passenger transport correspondence is suitable for this system. 2. Theoretical and experimental data are compared. Static error of calculations is defined as a comparison results. Unknown parameters of gravity func tion are defined. This allows to predict the passenger correspondence in this system
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