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Digital Controller Design of an Industrial Sewing Station using Evolutionary Algorithms

Abstract

Development of increasingly efficient production methods is a competiveness driving factor for any company. Today, many of these improvements include the integration of technology-based solutions into processes traditionally operated by humans. In this context, the present work aims to report the controller performance of a prototype developed for semi-automatic sewing stations. This project was fostered by “Factory Play”, a Portuguese company that produces inflatable structures, under the technical supervision of the Polytechnic Institute of Bragança. At the present time, the sewing station travel speed is regulated by an embedded PID controller that has been previously tuned using classical methods. However, even if the overall performance is currently acceptable, additional experiments were made regarding the use of evolutionary based algorithms to attain a better dynamic response and flexibility. This article present the results obtained using those methods where it is possible to confirm that the use of evolutionary algorithm will simplify the design process while consistently leading to a suitable solution.

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A Reconfigurable High-Q Antenna for Automotive Applications

Abstract

This paper is a review of the way in which the high-quality factor antennas can be used to integrate the VHF and HF car’s antennas in one device. The usage of the citizen band (CB) antennas in an HF band extends the environmental awareness of the driver and could increase the safety of the traffic. Usually, the citizen band transceiver with its antenna isn’t installed in a brand new car but the FM radio receiver it is. The main constraints that are related to the size difference between the two antennas (in FM and CB) make the main car manufacturers let the matter regarding the CB usage, open, at the choice of the buyer. The paper analyzes the technological advancements in the field and investigates some alternatives to the issue that will allow an opening through a single antenna usage for both radio bands.

Open access
When Econometrics Meets Machine Learning

invite Yong Tan to help answer the question first. 2.2 Yong Tan 2.2.1 Idea 1: Integration of machine learning and econometrics will be of great value Actually, I have been talking about this topic many times from the methodological point of view. However, this time I would like to start with a disclaimer that methodology itself is just a tool. We want to advance the tool in order to solve more interesting business problems. The objective of using econometrics is to find out the causal relationship of data, which is our main purpose. On the other hand, from

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Understanding and Evaluating Research and Scholarly Publishing in the Social Sciences and Humanities (SSH)

expected and must be respected in more typical cultural and societal sectors and domains, such as democratic development, policy design, public administration, international affairs, integration and understanding of different languages and cultures, education at all levels, cultural life, media and information, and in investigating and informing about history, the “memory of society”. In these sectors and domains, one will find that societal impact usually is in place as organized interaction and responsibilities between the SSH and other institutions of civilization

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What Motives Users to Participate in Danmu on Live Streaming Platforms? The Impact of Technical Environment and Effectance

International 55 3 273 286 10.1080/09523987.2018.1512447 Liu, L., Suh, A., & Wagner, C. (2016). Watching online videos interactively: The impact of media capabilities in Chinese Danmaku video sites. Chinese Journal of Communication , 9(3), 283–303. 10.1080/17544750.2016.1202853 Liu L. Suh A. Wagner C. 2016 Watching online videos interactively: The impact of media capabilities in Chinese Danmaku video sites Chinese Journal of Communication 9 3 283 303 10.1080/17544750.2016.1202853 Liu, L., Suh, A., & Wagner, C. (2017). Who is with You? Integrating a Play Experience into

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Social Media Affordances and Information Sharing: An Evidence from Chinese Public Organizations

• Convenient to use • Communicate with top and lower staff quickly • Quick connection and prompt • Communication and association • Reduce the frequency of face-to-face reports • Efficiency and quick response • Interact with my colleague and share express information ideas • Meeting and social groups those are created on social media • A useful way of sharing information • Better connection • Media groups for coordination process • Convenient to integrate • A platform for communicating quickly

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Monitoring the Dynamic Deformation of the Bridge Structures by Accelerometers

Abstract

The paper presents current trends in determining the dynamic deformations of bridge structures through the exploitation of geodetic measurements by accelerometers. The main aim of the paper is to demonstrate the practical application of these measurements on the cycling bridge over the river Morava in Devínska Nová Ves. Possibilities for the processing and analysis of accelerometer measurements by spectral analysis are described. An evaluation of the results is realized based on the modal characteristics from a numerical model designed by the finite element method.

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Concept of AHRS Algorithm Designed for Platform Independent Imu Attitude Alignment

.12.011 Farrel, J. A. (2008). Aided navigation GPS with high rate sensors. Mc Graw Hill. Farrell Jay A., J. W. (2017). GNSS/INS Integration. springer handbook of global navigation satellite systems (S. I. Publishing, Ed.). Springer International Publishing. Foxlin, E. (2005). Pedestrian tracking with shoe-mounted inertial sensors. IEEE Comput. Graph. Appl(25(6)), 38-46. Freescale. (2012). Implementing a tilt-compensated eCompass using accelerometer and magnetometer sensors. Freescale Semiconductor Application Note

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Study of the Effectiveness of Different Kalman Filtering Methods and Smoothers in Object Tracking Based on Simulation Tests

.” Photogrammetric Engineering and Remote Sensing , Vol. 71, No. 4, 377–389. Ito, K., Xiong, K. (2000). „Gaussian Filters for Nonlinear Filtering Problems.” IEEE Transactions on Automatic Control , 45(5), 910–927. Kalman R. E., (1960) „A New Approach to Linear Filtering and Prediction Problems”, Trans. of the ASME - Journal of Basic Engineering, p. 35-45. Kaniewski, P., (2006) „Aircraft Positioning with INS/GNSS Integrated System” Molecular and Quantum Acoustics, Vol. 27, p. 149-168. Kim, H et al. (2003) „An Ultra Tightly coupled GPS/INS Integration using

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