An image processing pipeline was designed for the thread detection. The complete workflow is visualized in Figure 3. At all times, knowledge about the desired thread pattern model is available. A. Two Partial Luminance Images The composed camera RGB-image is converted to a singlechannel luminance image L(x, y) = 0.3∗R(x, y)+ 0.59∗G(x, y)+ 0.11∗B(x, y). …
Category Archives: Uncategorized
Thread Position in High Precision CNC Sewing
Thread Position in High Precision CNC Sewing CNC sewing technology is applied for assembling layers of textiles. Typical examples are car seats or mattresses. The most important function of the sewing thread is not to fix and connect the different layers, but to appear visually pleasing [4]. Therefore, the final thread pattern must correspond to …
Continue reading “Thread Position in High Precision CNC Sewing”
Manova analysis for sewing machines
Preliminary assumption testing was conducted to check for normality, linearity, univariate and multivariate outliers, homogeneity of variance-covariance matrices, and multicollinearity, with no serious violations noted. The results of the MANOVA analysis include the F-statistic value, average (M), standard deviation (SD), Wilks’ Lambda, significance level p and partial eta squared. Wilks’ Lambda is one of the …
An industrial PFAFF 1183 lockstitch
An industrial PFAFF 1183 lockstitch (stitch 301 according to ISO 4915) machine (Fig.1) has been instrumented with a thread tension sensor (Fig.2) connected to a signal conditioning circuit which in turn plugs to a National Instruments PCI-MIO16E-1 data acquisition board (although often called thread tension, the parameter measured is actually a thread pulling force). The …
Monitoring and Control of Industrial Sewing Machines
Monitoring and Control of Industrial Sewing Machines The processing of textile products by sewing them together is a very complicated process. This may not be apparent at first glance, but a closer look at the process reveals that, due to the flexible, often extensible nature of the materials, their handling is a procedure that in …
Continue reading “Monitoring and Control of Industrial Sewing Machines”
Textile Stream Smart Manufacturing Innovation
Textile Stream Smart Manufacturing Innovation He smart factory is a futuristic production paradigm that transforms ICT(Information and communication technology) into a new smart/green/urban production system by integrating the existing traditional industrial production system.[1-2] Industry 4.0 proposed by DFKI, is defined as the 4th industrial revolution based on Internet-of-Things(IoT), cyber-physical systems(CPS), and Internet-of-Services(IoS). [3-6] In the …
Continue reading “Textile Stream Smart Manufacturing Innovation”
Thread Position in CNC Sewing
Be yourself; Everyone else is already taken. — Oscar Wilde. The adaptation process corresponds to finding a unique deformation vector for each model stitch point. A. Thread Representation Positions of the thread appearing in the image are extracted using a blob detection on the binary image wges(x, y). Every position found this way will in …
Simulation Modeling of Sewing Process
Simulation Modeling of Sewing Process Industrie 4.0, proposed by DFKI [1], is defined as the 4th industrial revolution based on Internet-of-Things (IoT) [2], cyber-physical systems (CPS) [3], and Internet-of-Services (IoS) [4]. One of the characteristics of Industrie 4.0 is that it includes smart factories capable of generating customized products for customers. One of the important …
VS Sewing Machines 