2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)最新文献_第9页

Contact type profile measuring method of optical lens surface 光学透镜表面接触式轮廓测量方法

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9651077

Der-Chin Chen, Ming Liu, Jih-Yi Liao, Feng-Ming Yeh, Yung-Fu Liu, Ya-Hui Hsieh

{"title":"Contact type profile measuring method of optical lens surface","authors":"Der-Chin Chen, Ming Liu, Jih-Yi Liao, Feng-Ming Yeh, Yung-Fu Liu, Ya-Hui Hsieh","doi":"10.1109/ISPACS51563.2021.9651077","DOIUrl":"https://doi.org/10.1109/ISPACS51563.2021.9651077","url":null,"abstract":"Place the optical lens on the XY platform and move laterally along a single horizontal axis. The probe of the digital dial indicator on the Z axis moves vertically along the optical surface. The sliding height difference is converted into a digital signal and input into the computer together with the horizontal position data. The surface profile measurement of the optical lens can be completed through software calculation. The system includes a digital dial indicator, programmable controller (PLC), XY mobile platform, peripheral circuits and calculation computer. The standard test piece of the spherical convex lens with the radius of curvature of 107.14mm is used as the verification of the measurement accuracy of the system. The average value of the measured radius of curvature is 107.24mm, and the error value is ±0.1mm. The advantages of this research method are that it directly reflex of the height difference of the optical surface, is not affected by the interference of ambient light and the reflectivity of the optical surface, and can quickly measure the actual curve of the lens by using a simple algorithm.","PeriodicalId":359822,"journal":{"name":"2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131213878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chaotic Signal Synthesizer Applied on Portable Devices for Tinnitus Therapy 混沌信号合成器在耳鸣治疗便携式设备上的应用

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9650988

Sun-Ting Lin, Ruey-Fen Hsu

引用次数: 1

Alloy Cast Product Defect Detection Based on Object Detection 基于物体检测的合金铸件缺陷检测

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9651119

Chih-Hsueh Lin, Chia-Wei Ho, Guo-Hsin Hu, Po-Chun Kuo, Chia-Yen Hu

{"title":"Alloy Cast Product Defect Detection Based on Object Detection","authors":"Chih-Hsueh Lin, Chia-Wei Ho, Guo-Hsin Hu, Po-Chun Kuo, Chia-Yen Hu","doi":"10.1109/ISPACS51563.2021.9651119","DOIUrl":"https://doi.org/10.1109/ISPACS51563.2021.9651119","url":null,"abstract":"In the metal casting process, a lot of fine pores and air holes are formed in the metal cooling process, and the number of air holes determines the quality of products. Responding to high grade development, high value cast inspection is mostly nondestructive, and full inspection is required to guarantee the quality. The X-ray detection becomes the target of industrial manufacturing and inspection. The X-ray detection technique has been extensively used in industrial production for nondestructive accurate detection. The ray image quality and staff qualification are established according to ASTM E1742 and E2973. This study captured defect images, and used X-Ray-CT equipment to create defective samples for defect images. For internal defect detection, the air holes and defects in the alloy metal cast product are located by adopting object detection technique. The defect spot contour in the image is enhanced by image pre-processing, meanwhile the noise or non-concerns are reduced, assisting the deep learning model to look for the features of defect spots. This model can assist the quality inspection personnel to determine the defect type and grade, reduce the inspection errors and shorten the detection time. Moreover, this model can solve the problems of time consuming inconsistent criteria, while making it to be time efficient and accurate judgment.","PeriodicalId":359822,"journal":{"name":"2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126793041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Performance Enhancement of Low Granularity MIMO-OFDMA Using FSS Method 利用FSS方法增强低粒度MIMO-OFDMA的性能

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9651133

Y. Toyama, S. Kojima, C. Ahn

{"title":"Performance Enhancement of Low Granularity MIMO-OFDMA Using FSS Method","authors":"Y. Toyama, S. Kojima, C. Ahn","doi":"10.1109/ISPACS51563.2021.9651133","DOIUrl":"https://doi.org/10.1109/ISPACS51563.2021.9651133","url":null,"abstract":"OFDMA is a technology that enables multiple users to share the same frequency band to achieve simultaneous multiple connections and high frequency utilization efficiency. Since the channel state of each user is different in multiuser environment, it is necessary to allocate optimal subcarrier (high granularity) to each user to maximize the frequency utilization efficiency. Furthermore, when we consider the MIMO-OFDMA, it is more difficult to choose the optimal subcarrier for each user. This is because the channel state of each antenna for an individual user is also different. Therefore, it is important to know in detail which subcarriers are used by each user, which increases the amount of control information and causes processing delay. Therefore, in practical 4G and 5G systems, subcarrier block assignment (low granularity) for each user is used. However, with considering the subcarrier block assignment, the received power is attenuated due to the effect of frequency selective fading, and this causes bit errors. To improve the BER performance and reduce the amount of control information, in this paper, we propose the optimum subcarrier block assignment for each user using FSS method for enhancement of multiuser diversity with reducing the control information [1] - [4] .","PeriodicalId":359822,"journal":{"name":"2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121501095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ECO Timing Optimization with Data Paths and Clock Paths Considered 考虑数据路径和时钟路径的ECO时序优化

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9650994

Jia-Xiang Tang, Shih-Hsu Huang, Jui-Hung Hung

引用次数: 1

Intelligent Color Image Recognition and Mobile Control System for Robotic Arm 机械臂智能彩色图像识别与移动控制系统

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9651124

W. Yao, H. C. Chen

{"title":"Intelligent Color Image Recognition and Mobile Control System for Robotic Arm","authors":"W. Yao, H. C. Chen","doi":"10.1109/ISPACS51563.2021.9651124","DOIUrl":"https://doi.org/10.1109/ISPACS51563.2021.9651124","url":null,"abstract":"The aim of this study is to develop an intelligent color recognition, mobile control and monitoring system for a pick-and-place robotic arm for manufacturing system. The demand of smart manufacturing factory with a real-time control of fabricating process and traceability of production information is increasing urgently. Generally speaking, a smart manufacturing facility is usually composed of sensing, computing, control and communication technologies together. In this study, the three-tier architecture of Internet of things (IoT) was adopted as a guideline to design mobile devices to control and monitor a color image recognition and alarm monitoring system by using raspberry Pi and web page database. The result shows that: (1) the mobile control and monitoring system is able to supervise a real-time manufacturing plant anywhere and anytime with mobile devices easily; (2) the color identification system can identify and classify different color work-piece precisely, and the identification results are recorded for remote database platform; (3) the collected data are analyzed and displayed on mobile devices through the web database for field operators and engineers.","PeriodicalId":359822,"journal":{"name":"2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123971571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Rice Semantic Segmentation Using Unet-VGG16: A Case Study in Yunlin, Taiwan 基于Unet-VGG16的水稻语义分割:以台湾云林为例

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9651038

Ida Wahyuni, Wei-Jen Wang, Deron Liang, Chin-Chun Chang

引用次数: 0

A 40-Gb/s NRZ Inductorless Transimpedance Amplifier in a 0.18-μm SiGe BiCMOS Technology 基于0.18 μm SiGe BiCMOS技术的40gb /s NRZ无电感跨阻放大器

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9650922

H. Hsu, Xuan-Yi Ye, Jau‐Ji Jou, Tien-Tsorng Shih

引用次数: 1

Monitoring River Pollution of Marine Environment 监测河流污染海洋环境

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9651056

Chiung-Hsing Chen, Yi-Chen Wu, Kang-Pyng Yu, Miin-Jong Hao, Shuoh-Ren Tsai

引用次数: 1

Method of Extracting Data from Images on a Curved Surface in Data Embedding to Printed Images Using Mobile Devices 移动设备打印图像数据嵌入中曲面图像数据提取方法

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI: 10.1109/ISPACS51563.2021.9651096

Fumiaki Kotegawa, M. Muneyasu, Soh Yoshida

引用次数: 0