发布求助
文献互助 智能选刊 最新文献

Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.最新文献

筛选
英文 中文
A boundary location update strategy for minimizing average cost of paging 最小化分页平均成本的边界位置更新策略
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459679
S. Dangiumeak, J. Peinjalern, S. Noppanakeepong
{"title":"A boundary location update strategy for minimizing average cost of paging","authors":"S. Dangiumeak, J. Peinjalern, S. Noppanakeepong","doi":"10.1109/SCORED.2003.1459679","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459679","url":null,"abstract":"In this paper, we propose a novel paging strategy based on number of cell in the set of boundary with standard location area (LA) and location update. When compared to conventional paging methods, the propose scheme decreases paging cost but also increases boundary location update cost. The LA boundary location update is performed whenever the MS changes its boundary between the cells set in boundary and the rest of cells in LA. This scheme consider most MS are moving in some cell of LA, with dedicated boundary paging for reduce cost of paging. Therefore, paging cost reduces depending on the number of cell set in the boundary and the scheme was performed by numerical results.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130687028","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
Simulation studies of current regulated PWM VSI fed multi-phase AC machine drives 电流调节PWM VSI馈电多相交流电机驱动的仿真研究
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459729
A. Iqbal, E. Levi, M. Jones, Mohibullah
{"title":"Simulation studies of current regulated PWM VSI fed multi-phase AC machine drives","authors":"A. Iqbal, E. Levi, M. Jones, Mohibullah","doi":"10.1109/SCORED.2003.1459729","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459729","url":null,"abstract":"Application of power electronic converters in electric drive systems enables utilization of ac machines with a phase number greater than three. Multi-phase ac machine drive offers numerous advantages over conventional three-phase drives. In principle the control methods are same as for three phase machines. A detail modelling of n-phase (where n=odd) induction machine is presented in this paper. The model of machine, given in terms of phase variable, is transformed into a common reference frame, rotating at an arbitrary angular speed. Five-phase drives are finally chosen for the simulation study. An extensive simulation study is done for different operating conditions and the results are presented. Most application of PWM converters has a control structure comprising a current feedback loop for current regulation. This paper deals with the most commonly used hysteresis current control schemes. The reference current is taken as the ideal sinusoidal current source.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128593644","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
Development of a scheduler for quality of service support in IP-based networks 基于ip的网络中服务质量支持的调度程序的开发
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459672
N. M. Din, N. Fisal
{"title":"Development of a scheduler for quality of service support in IP-based networks","authors":"N. M. Din, N. Fisal","doi":"10.1109/SCORED.2003.1459672","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459672","url":null,"abstract":"The current IP-based networks are described as best effort. When a packet arrives at a router, the router looks at the destination address, checks with the routing-table entries, then selects the best match and sends the packet to the output queue. The routing is dynamic where the packets in a single flow may take different paths to the destination. Also packets in the output queues are serviced based on first-come-first-serve order. The best effort mechanism of the IP-based networks worked very well in an end-to-end data transfer environment, which contributes to the success of the Internet this far. However, to support real-time multimedia applications over the IP-based networks such as streaming video, IP telephony, Internet radio, teleconferencing, interactive games, etc, would require necessary services that could guarantee the end-to-end delay required by the applications. New service architectures have been recently introduced to support real-time multimedia networking in IP-based networks. Differentiated services (DiffServ) architecture combined with multi protocol label switching (MPLS) have become a promising mechanism of achieving quality of service (QoS) with the scalability required by the Internet. Scheduling mechanisms at the network nodes can give fairness and protection according to the requirements of the traffic. This paper proposes a dynamic scheduler based on fuzzy logic at the DiffServ-enabled MPLS edge node. The fuzzy logic scheduler uses the maximum bandwidth allocation scheme.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130898696","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: 3
Industrial variable speed drives for induction motor practical failures and their solutions 工业变速驱动中感应电机的实际故障及其解决方法
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459708
G. Ramasamy, S. Jantan
{"title":"Industrial variable speed drives for induction motor practical failures and their solutions","authors":"G. Ramasamy, S. Jantan","doi":"10.1109/SCORED.2003.1459708","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459708","url":null,"abstract":"Variable speed drives (VSD) is rapidly replacing the conventional electromechanical contactors. Earlier engineers have shown hesitation to except the change of conventional starting method to soft starting using solid-state switches as the cost relatively high. But now the condition has changed as industrialist prefers this power electronics based inverters for both soft starting and speed control, this in fact getting more attention as price of solid states semiconductors has gradually reduced and eventually the VSD is cost effective as compare to electromechanical switches especially when the questions of efficiency, energy saving and reliability arise. However, as VSD is not a stand-alone device hence, there are many practical problems and failures confront by design engineers, project engineers as well as maintenance engineers. For this reason, this paper includes practical failures or problems faced by engineers during design, selection, installation and operation of VSD for induction motor in particular. Failures and problems in each stage will be elaborated in the simple manner from industrial point of view. Their appropriate solutions or preventions will be introduced to minimize breakdown and possible severe damages of VSD.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"37 51","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120929361","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
Fast power system computation using multiprocessor 基于多处理器的电力系统快速计算
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459703
I. Hassan, M.M. Ahmed, S. Mohd
{"title":"Fast power system computation using multiprocessor","authors":"I. Hassan, M.M. Ahmed, S. Mohd","doi":"10.1109/SCORED.2003.1459703","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459703","url":null,"abstract":"The system being developed is a power system module that will calculate load flow processes and outputting results for better understanding of the grid being analyzed. A dedicated multiprocessors system is developed to suit the purpose. The multiprocessors will utilize low-cost and readily available processors. At the moment, there are only three (3), computers will be connected as a multiprocessors system. Beowulf Linux clustering is implemented to create a 'supercomputer' like environment of the multiprocessor system. Through Linux stable operating system environment, the program would simulate the network using Newton-Raphson iterations to produce results. Fast solutions are enabled using parallel programming and load balancing technique among the multiprocessors system. User-friendly interface is created for easy access and easy interaction with the program and data input. Any trained personnel can monitor the system using the wide 21\" screen that will also display the status of other processors currently working.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125664286","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
Development of PAN (personal area network) for mobile robot using Bluetooth transceiver 基于蓝牙收发器的移动机器人个人区域网络的开发
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459685
S. Choo, S. Amin, N. Fisal, C. F. Yeong, J. Abu Bakar
{"title":"Development of PAN (personal area network) for mobile robot using Bluetooth transceiver","authors":"S. Choo, S. Amin, N. Fisal, C. F. Yeong, J. Abu Bakar","doi":"10.1109/SCORED.2003.1459685","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459685","url":null,"abstract":"In recent years, wireless applications using radio frequency (RF) have been rapidly evolving in personal computing and communications devices. Bluetooth technology was created to replace the cables used on mobile devices. Bluetooth is an open specification and encompasses a simple low-cost, low power solution for integration into devices. This research work aim was to provide a PAN (personal area network) for computer based mobile robot that supports real-time control of four mobile robots from a host mobile robot. With ad hoc topology, mobile robots may request and establish a connection when it is within the range or terminated the connection when it leaves the area. A system that contains both hardware and software is designed to enable the robots to participate in multi-agent robotics system (MARS). Computer based mobile robot provide operating system that enabled development of wireless connection via IP address.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127608703","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
Room access monitoring system 房间门禁监控系统
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459711
R. Sahbudin, Lee Choong Hooi, Tan Chin Guan, Ling Siong Liet
{"title":"Room access monitoring system","authors":"R. Sahbudin, Lee Choong Hooi, Tan Chin Guan, Ling Siong Liet","doi":"10.1109/SCORED.2003.1459711","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459711","url":null,"abstract":"This paper presents a room access monitoring system, which integrates computer and microcontroller MOTOROLA MC68HC11A8. Assembly language is used to program the microcontroller and Visual Basic 6 (VB) is used to develop the monitoring system. The monitoring system is divided into server side program (Eyewatch) and client side program. The server side program informs the user about the door status through the client side program. The purpose to develop client side program is to enable user far apart from the door, know the status whether the door is block or not. The microcontroller is integrated with a keypad and LCD display. Only an authorized person can enter the room. If an unauthorized person trying to break through the door, an alarm will be activated.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131536334","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: 5
Simple analogue active filter testing using digital modelling 简单的模拟有源滤波器测试使用数字建模
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459692
M. H. Leong, A. A'ain
{"title":"Simple analogue active filter testing using digital modelling","authors":"M. H. Leong, A. A'ain","doi":"10.1109/SCORED.2003.1459692","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459692","url":null,"abstract":"This paper presents a new approach to detect analogue catastrophic faults via digital modelling for an analogue filter. Area of interest in this paper is to prove that analogue circuit can be translated into logic gates (0's or 1's) and investigates the effectiveness of analogue fault (short and open) in analogy approximate to digital stuck-at fault model. The purpose of testing fault that connects active component to supply terminal (stuck-at fault) is to investigate the characteristic of the output response, whether can successful model analogue fault to logic level. The approach is to sensitise primary input with an arbitrary frequency square-wave as stimuli and observes output signature in transient and frequency response in order to distinguish Go or No-GO. It is a simple method to accelerate production test without any extra circuitry. This approach has been implemented to a frequency-dependant circuit (Butterworth low pass filter) in order to verify its functionability.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131541014","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
Response of D-STATCOM under unbalanced voltage condition caused by SLG fault SLG故障引起的电压不平衡状态下D-STATCOM的响应
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459730
N. Wahab, Norman Mariun, Azah Mohamed, M. Mohamad
{"title":"Response of D-STATCOM under unbalanced voltage condition caused by SLG fault","authors":"N. Wahab, Norman Mariun, Azah Mohamed, M. Mohamad","doi":"10.1109/SCORED.2003.1459730","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459730","url":null,"abstract":"This work presents a study on a distribution static compensator (D-STATCOM) operating in electrical systems where the voltages are unbalanced due to SLG fault. During the SLG fault, negative sequence components exist in the system. In balanced systems the STATCOM has a very good performance, allowing compensation of capacitive or inductive reactive power with a fast transient response. When there are negative sequence components due to voltage imbalance, the D-STATCOM has reacted in reducing the unbalanced in the system. An analytical analysis, and simulations of a 12-pulse D-STATCOM using the electromagnetic transient program (PSCAD/EMTDC) show how D-STATCOM reacts during the unbalanced in the system affected by negative sequence components and how its performance increase the power system's stability. The D-STATCOM performances under unbalanced voltage are illustrated in the paper along with harmonics analysis study.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114723707","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: 6
An improvement to the adaptive Kalman filter with the feedback of estimation error 基于估计误差反馈的自适应卡尔曼滤波器的改进
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459657
N. Promkajin, S. Noppanakeepong
{"title":"An improvement to the adaptive Kalman filter with the feedback of estimation error","authors":"N. Promkajin, S. Noppanakeepong","doi":"10.1109/SCORED.2003.1459657","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459657","url":null,"abstract":"This paper presents a new novel technique for implementation of the adaptive Kalman filter. The algorithm is based on Kalman filtering tracking method with the addition of feedback estimation error. The performance of the algorithm is compared with that of a standard Kalman filter and also with that of an IMM algorithm. This proposed filter is simple to implement and requires less computational load while produce better estimates than the standard Kalman filter algorithm and closely to the IMM algorithm.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121697675","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信