2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)最新文献_第2页

An Internet-based coaxial switching system for an amateur radio station with multiple antennas 一种基于互联网的同轴交换系统，用于有多个天线的业余无线电台

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408965

Watchara Amasiri, Saran Lerdnantawat, Dahmmaet Bunnjaweht

{"title":"An Internet-based coaxial switching system for an amateur radio station with multiple antennas","authors":"Watchara Amasiri, Saran Lerdnantawat, Dahmmaet Bunnjaweht","doi":"10.1109/ICITEED.2015.7408965","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408965","url":null,"abstract":"The objective of the Internet-based coaxial switching system for an amateur radio station with multiple antenna was to create a system that could choose the appropriate antenna for a radio station in order to reduce the mismatch problem. That is essential because each antenna has specific operating frequency and specific radiation pattern. To control the switching mechanism, the microcontroller was an essential part of this embedded system. The system was implemented with high quality relays having good response in the amateur radio frequency range. System control could be done through personal computer or Android mobile phone. In addition, this system was integrated with a software-defined receiver. The implemented system was capable of selecting appropriate antenna as designed. The attenuation loss and signal reflection were acceptable by conventional amateur radio standards. This system has a user-friendly interface via mobile phone and personal computer. In addition to regular amateur radio setup, this work was tested with a software-defined receiver and it could operate in the similar designed conditions.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114768938","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

Predicting path quality with cross-layer information in multi-hop wireless networks 基于跨层信息的多跳无线网络路径质量预测

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408991

L. Pradittasnee

引用次数: 1

Modified differential box-counting method using weighted triangle-box partition 改进了加权三角盒划分的微分盒计数方法

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408945

Walairach Nunsong, K. Woraratpanya

{"title":"Modified differential box-counting method using weighted triangle-box partition","authors":"Walairach Nunsong, K. Woraratpanya","doi":"10.1109/ICITEED.2015.7408945","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408945","url":null,"abstract":"Differential box-counting (DBC) is one of the commonly used methods to estimate fractal dimension (FD) for gray scale images. It has been successfully applied in many applications such as image segmentation, pattern recognition, texture analysis and medical signal analysis. However, the accuracy improvement of FD estimation is still a grand challenge. This paper proposes a modified differential box-counting method using weighted triangle-box partition (MDBC) to reduce the estimation error caused by an undercounting problem. The proposed method is derived from two assumptions: (i) increasing the precision of box-counts by using unequally triangle box partition, and (ii) weighting the box-counts in proportion to the size of triangle-box partition. Based on these assumptions, on each grid a square box is divided into four asymmetric triangle-box patterns. Each pattern is calculated the box-counts by a weighted box-counting technique. The maximum number of box-counts represents the better estimation. In this way, the experimental results show that MDBC outperforms the baseline methods in terms of fitting error. Furthermore, the proposed method applies to finger-knuckle-print recognition in order to test its efficiency. The results illustrate that it significantly enhances the recognition rate when compared with the conventional differential box-counting (DBC) and improved triangle box-counting in combination with DBC (ITBC-DBC) methods.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129428188","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: 14

The development of fundamental teaching materials and the inverted pendulum system as advanced sequence control 基础教材的开发和倒立摆系统作为先进的顺序控制

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408933

Yuta Iishiba, Junichi Sugaya, K. Yajima

{"title":"The development of fundamental teaching materials and the inverted pendulum system as advanced sequence control","authors":"Yuta Iishiba, Junichi Sugaya, K. Yajima","doi":"10.1109/ICITEED.2015.7408933","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408933","url":null,"abstract":"In modern society, learning sequence control techniques is essential for engineers since apparatus using sequence control is used in various fields. Therefore, we developed some teaching materials of sequence control for international students and students in our college. Relay sequential control is the subject matter in these materials for beginners, because it is the foundation of sequence control. The purpose of manufacturing the materials is to enable students to understand the foundations of sequential circuits. Next, as an advanced step-up course of fundamental teaching materials, we developed new teaching materials whose subject is inverted-pendulum system. The controlled object is controlled based on the position information from the potentiometer, and the pendulum is kept upright as the cart moves by the electrical signal the controller generates. Therefore, the objective of this inverted-pendulum system is to keep pendulum standing upright. The purpose of developing this teaching material is to enable students to understand sequence control using PLC-sequence control. This advanced teaching material will be used for lectures in our college and visiting lectures in overseas partner universities. At present, we are testing the inverted pendulum system, but we can only keep it standing for one second. The reasons why we cannot keep pendulum standing may be: moving velocity of the ball-screw-stage is too slow and oscillation period of the pendulum is too short. We will consider how to solve these problems.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128503901","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: 2

On the reliability of diversity and redundancy-based search metrics 基于多样性和冗余度的搜索指标的可靠性研究

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7409020

Ake Tangsomboon, Teerapong Leelanupab

{"title":"On the reliability of diversity and redundancy-based search metrics","authors":"Ake Tangsomboon, Teerapong Leelanupab","doi":"10.1109/ICITEED.2015.7409020","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7409020","url":null,"abstract":"Traditional approaches to ranking documents in Information Retrieval (IR) are under the assumption that the representation of information needs is clear and well-defined. This representation, which is usually in the form of a search query, is arguably considered ambiguous or underspecified. To deal with this uncertainty, much recent research has focused on creating IR systems that diversify search results so as to satisfy the multiple possible information needs underlying the query. To validate these IR systems, many new evaluation metrics have been proposed to quantify their effectiveness in terms of diversity and redundancy. Among these, a new diversity-based metric, called normalized Coverage Frequency (nCF), has lately been proposed to quantify diversity in a ranking. When a new metric is proposed, its reliability needs to be validated. This paper conducts an empirical experiment to compares and contrast state-of-the-art diversity and redundancy-based metrics, in term of discriminative power and stability of system rankings. Our experiment shows that the nCF is rated the best among all the studied metrics. Moreover, this finding is confirmed by when nCF is interpolated with other redundancy-based metrics (i.e., ERR-SA and A-nDCG). the nCF is considered more relatively robust than another diversity metric, subtopic-recall.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128262643","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

A software system family: Learning from simple data processing to knowledge management system of research 一个软件系统家族:学习从简单的数据处理到知识管理系统的研究

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408906

I. Liem, Transmissia Semiawan, Ade Chandra, Suprihanto

引用次数: 1

Tracking-based human entry/exit detection on various video resolutions (A study on parameter effects) 不同视频分辨率下基于跟踪的人员进出检测(参数效应研究)

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408985

W. Saelao, Wirat Rattanapitak, S. Wangsiripitak

{"title":"Tracking-based human entry/exit detection on various video resolutions (A study on parameter effects)","authors":"W. Saelao, Wirat Rattanapitak, S. Wangsiripitak","doi":"10.1109/ICITEED.2015.7408985","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408985","url":null,"abstract":"A real-time tracking-based change detection using FAST features and a background feature model are proposed as a base system for detection of human entrance and exit. A speedy FAST feature extraction and tracking has to trade-off its accuracy, which sometimes causes a failure in human entrance/exit detection. Many video sizes are therefore tested in the system to examine the trade-off effects on the accuracy of feature extraction, tracking, and entry/exit detection. Tracking parameters are also investigated to determine the optimal values for each video resolution, such that stable tracking and detection are achieved. Experimental results show that the higher the video resolution is the more the error is likely to happen. Instability of feature extraction and position which increases in higher resolution is proved to be the main reason of failure. Increasing the number of previous images used in the update of background feature model, proportional to the resolution of video, takes into account the feature uncertainty. As the result, the proposed method is robust to changes in video resolution and runs at 30 fps without a miss of human entrance/exit detection and false alarm.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127275202","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: 2

Automatic hemorrhages detection based on fundus images 基于眼底图像的自动出血检测

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408951

Syna Sreng, Noppadol Maneerat, D. Isarakorn, K. Hamamoto, Ronakorn Panjaphongse

引用次数: 5

Indirect vector control of induction motors using a PI-fuzzy controller with the simplified implementation without current sensors 采用pi模糊控制器对异步电动机进行间接矢量控制，并简化实现，无需电流传感器

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408973

Itthiphan Sakunwanthanasak, S. Boonsang

{"title":"Indirect vector control of induction motors using a PI-fuzzy controller with the simplified implementation without current sensors","authors":"Itthiphan Sakunwanthanasak, S. Boonsang","doi":"10.1109/ICITEED.2015.7408973","DOIUrl":"https://doi.org/10.1109/ICITEED.2015.7408973","url":null,"abstract":"The aim of this paper is to present a simplified vector control implementation without current sensors in order to reduce cost of overall system, design complexity, and improving by using proportional-integral fuzzy logic control (PI-FLC) for high performance in wide-speed-range operation. In this scheme, voltage source inverter used space vector pulse width modulation (SVPWM) technique that is good voltage utilization and low total harmonic distortion (THD), where voltage control signal of inverter is derived from indirect vector control (IVC) theory and dynamic motor equation. The complete PI-FLC vector control was experimentally implemented using dsPIC4011 board for 1/2-hp squirrel cage induction motor (IM). This proposed control system was compared with conventional proportional-integral (PI) control validated by MATLAB/Simulink and experiment. Both control techniques were tested at different dynamic conditions such as sudden speed change and speed tracking. The comparative experimental results show that the PI-FLC vector control is more robust for this application.","PeriodicalId":207985,"journal":{"name":"2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130012283","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: 4

An improved 2DPCA for face recognition under illumination effects 光照下人脸识别的改进2DPCA

2015 7th International Conference on Information Technology and Electrical Engineering (ICITEE) Pub Date : 2015-10-01 DOI: 10.1109/ICITEED.2015.7408988

K. Woraratpanya, Monmorakot Sornnoi, Savita Leelaburanapong, Taravichet Titijaroonroj, R. Varakulsiripunth, Y. Kuroki, Yasushi Kato

引用次数: 14