Special Issue on Advanced Materials and Sensing Technologies
on IoT Applications: Part 2-2Preface
In recent years, applications of advanced materials and sensing
technologies in electronic and mechanical devices have become rapidly
developing fields. Manufacturing is the economic lifeline of a country
and has been regarded as a labor-intensive industry. Therefore, to cut
production costs, devices for the internet of things (IoT) have been
widely developed. IoT is composed of most integrated end devices
and facilities, such as intelligent sensors for internal control, industrialsystems, mobile terminal systems, floor control systems, and homeintelligent facilities. Smart devices and external control information areutilized with the hope of attracting companies that manufacture highvalue-added products in the fields of aerospace, automotive, IT molds,
textiles, optoelectronics, watches, medical devices, defense, automation,energy, and semiconductor-related parts and components to drive thecountry’s economy. Therefore, the key to maintaining a competitive
advantage in domestic manufacturing in the future is still to rely on thedevelopment of advanced manufacturing and precision machinery-relatedtechnologies. The scope of this Special Issue, “Advanced Materials andSensing Technologies on IoT Applications”, covers fundamental materials
used in electronic, mechanical, and electrical engineering including theirsynthesis and integration with many elements, the design of electronic andoptical devices, sensing technologies, evaluation of various performance
characteristics, and exploration of their broad applications to industry,
environmental control, materials analyses, and so forth. Part 2-2 of thisspecial issue selects 10 excellent papers about four categories of sensors and materials fields:(1) Physical/Mechanical Sensors: “Simulation and Analysis of Power-point Tracking via
Photovoltaic Sensors” presented by Zhang et al. and “EfficientNet: A Low-Bandwidth IoTImage Sensor Framework for Cassava Leaf Disease Classification” presented by Chen et al.
(2) Bio/Chemical Sensors: “Portable Pulse Meter with Simple Design” presented by Lan et al.
(3) Related Technologies: “Realization of Initiative Repair of Power Distribution Network
Based on Back Propagation Neural Network Optimization” presented by Guo et al., “Recognitionof Vehicle License Plate Based on Hopfield Artificial Neural Network” presented by Lanet al., “Terahertz Imaging of ICs Using K-means Clustering for SIFT Feature and Fusion
Model of Wavelet Transform” presented by Pu et al., “Elimination of Motion Artifacts in
Photoplethysmography Signals by Analytical Method” presented by Guo et al., and “HyperspectralImage Classification Based on Visible–Infrared Sensors and Residual Generative Adversarial
Networks” presented by Su et al.
(4) Sensors Applications: “Interactive Sound Generation to Aid Visually Impaired People via
Object Detection Using Touch Screen Sensor” presented by Kurniati et al. and “Designing,Manufacturing, and Testing a Voice-controlled Intelligent Drawer” presented by Yang et al.
The guest editors would like to thank the authors for their contributions to this special issue
and all the reviewers for their constructive reviews. We are also grateful to Ms. Misako Sakano
for her time and efforts in the publication of this special issue for Sensors and Materials.
Teen-Hang Meen
Distinguished Professor, Department of Electronic Engineering
National Formosa University, Taiwan
Wenbing Zhao
Professor, Department of Electrical Engineering and Computer ScienceCleveland State University, USA
Cheng-Fu Yang
Professor, Department of Chemical and Materials Engineering
National University of Kaohsiung, Taiwan