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2009 IEEE Symposium on Industrial Electronics & Applications最新文献

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Cross-layer optimization for multi-class VSG CDMA in Rayleigh fading 瑞利衰落下多类VSG CDMA的跨层优化
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356490
P. Sedtheetorn
In this paper, we propose a joint throughput maximisation design across Physical (PHY) and Call admission control (CAC) layer for multi-class VSG CDMA systems in a Rayleigh fading environment. The system model is accurately analysed and a new exact closed form of the PHY-layer constraint is derived. We show that it is possible to transform the set of the non-linear PHY-layer constraints into linear expressions of the admission region of CAC layer. This facilitates formulating a linear cost function, which is modeled by semi-Markov decision processes (SMDPs), and results in an accurate cross-layer optimisation design. With the proposed design, the maximum throughput is achieved by linear-programming approach as well as the QoS requirements of both layers are guaranteed. Based on the numerical results, the system performance are improved up to 50% in terms of throughput and blocking probability.
在本文中,我们提出了一种在瑞利衰落环境下,跨物理层(PHY)和呼叫接纳控制层(CAC)的多类VSG CDMA系统的联合吞吐量最大化设计。对系统模型进行了精确分析,导出了物理层约束的新的精确封闭形式。我们证明了将物理层的非线性约束集合转化为CAC层接纳区的线性表达式是可能的。这有助于制定线性成本函数,该函数由半马尔可夫决策过程(smdp)建模,并导致准确的跨层优化设计。该设计通过线性规划实现了最大的吞吐量,同时保证了两层的QoS要求。数值结果表明,在吞吐量和阻塞概率方面,系统性能提高了50%。
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引用次数: 1
Studies on safe-commutation switching sequence for controlled rectifier operation of Single-Phase Matrix Converter 单相矩阵变换器可控整流安全换相开关顺序的研究
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356483
R. Baharom, M. K. Hamzah, M. Seroji, M. K. Mohd Salleh
This paper describes implementation of safe-commutation switching sequence for controlled rectifier operation of Single-Phase Matrix Converter (SPMC). Pulse Width Modulation (PWM) technique was used to calculate the switch duty ratio to synthesize the output. The switching sequence is arranged by providing a continuous path for current flow during switch transition to avoid voltage spikes due to the use of inductive load. A computer simulation model was developed to investigate the behaviour using MATLAB/Simulink (MLS) and PSpice. An experimental test-rig was then used to verify operation; incorporated with control electronics, gate drives, and power circuits. Selected simulations and experimental results are presented to verify operation.
介绍了单相矩阵变换器可控整流运行安全换相开关顺序的实现。采用脉宽调制(PWM)技术计算开关占空比,合成输出。通过在开关转换期间为电流流动提供连续路径来安排开关顺序,以避免由于使用感性负载而产生电压尖峰。利用MATLAB/Simulink (MLS)和PSpice建立了计算机仿真模型来研究其行为。然后使用实验试验台验证操作;结合控制电子,门驱动,和电源电路。给出了部分仿真和实验结果来验证该方法的有效性。
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引用次数: 2
Development of a transduction circuit for piezoresistive MEMS sensor for biosensing 生物传感用压阻式MEMS传感器转导电路的研制
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356373
M. F. Abdullah, L. Khuan, N. K. Madzhi, M. Masrie, A. Ahmad
This paper concerns the development of a potentiometric transduction circuit for a piezoresistive MEMS sensor to detect human stress. The biosensor is comprised of a bioreceptor and a transducer. The sensing principle is based on immobilization of the bioreceptor to produce a biochemical reaction. The novel piezoresistive microcantilever sensor integrated with a transduction circuit converts this biochemical event into a measurable electrical signal. From previous work, it has been found that the level of alpha amylase activity corresponds to human stress. The piezoresistive MEMS sensing and transduction method are described, with enzyme concentration as the input and voltage as the output. The transduction circuit designed enables the small change in resistivity due to the enzymatic reaction to be detected. The circuit has been designed and tested through theoretical, simulation and experimental studies. It has been found that for a sensor input range of 1.2 to 1.3 kilo ohms, an output range of −100 to +100 millivolts is obtained. A discrepancy within 3.69% is found between simulation and experimental results, on the average. The null bridge condition is designed at 1.2 kilo ohms while the offset rate is found to be 10 millivolts per ohm.
本文讨论了一种用于压阻式MEMS传感器的电位传导电路的开发,以检测人体的压力。该生物传感器由一个生物受体和一个传感器组成。传感原理是基于生物受体的固定化来产生生化反应。新型压阻式微悬臂传感器集成了一个转导电路,将这一生化事件转化为可测量的电信号。从以前的工作中,已经发现-淀粉酶活性的水平与人类的压力相对应。介绍了以酶浓度为输入,电压为输出的压阻式MEMS传感和转导方法。所设计的转导电路能够检测到酶促反应引起的电阻率的微小变化。通过理论、仿真和实验研究对该电路进行了设计和测试。已经发现,对于1.2至1.3千欧姆的传感器输入范围,可以获得−100至+100毫伏的输出范围。模拟结果与实验结果的平均误差在3.69%以内。零桥条件被设计为1.2千欧姆,而失调率被发现为每欧姆10毫伏。
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引用次数: 11
A design of embedded dmx512 controller using FPGA and XILKernel
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356505
Sarat Yoowattana, C. Nantajiwakornchai, M. Sangworasil
A design of the various control devices with a DMX512 Protocol is widely used in many areas, such as decorative lighting for both inside and outside of the building, or stage lighting and equipment control, such as spot light, smoke machine, strobe light, moving light. This article presents the creation of Embedded DMX512 Controller using FPGA with Real Time Operating System (RTOS). This creation enables us to build multiple channels of DMX Controller within a single device and to control DMX Controller through the TCP/IP. Thus we can control or update the data through the internet.
采用DMX512协议设计的各种控制设备被广泛应用于许多领域,如建筑物内外的装饰照明,或舞台灯光和设备控制,如射灯、烟雾机、频闪灯、移动灯。本文介绍了基于实时操作系统(RTOS)的嵌入式DMX512控制器的FPGA制作。这种创建使我们能够在单个设备内构建DMX控制器的多个通道,并通过TCP/IP控制DMX控制器。因此,我们可以通过互联网控制或更新数据。
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引用次数: 9
The research into an improved algorithm of telecommunication inter-transactional association rules based on time series of all confidence 研究了一种基于全置信度时间序列的电信事务间关联规则改进算法
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356464
Wenchuan Yang, Chao Dong, Jie Cheng, Fang Fang
The telecommunication network has a large scale and an intense complexity. Agents distributed over diverse network elements have collected an immense number of KPI data, the key indicators of network performance. These time series data can have mutual impact. This paper puts forward an improved algorithm named AFP-Growth to mine association rules of inter-transaction time series in the telecommunication field. Based on improvements of the conventional FP-Growth algorithm without Conditional sub-tree Generation, this algorithm has introduced a new correlation measure, that is, all confidence, thus resolving the problems of null-transaction and negative correlation in mining telecommunication data. In addition, by utilizing the features of all confidence, this algorithm has improved the pruning rule of FP-Tree, and enhanced the effectiveness of FP-Tree search, thus increasing the time and space efficiency.
电信网络具有规模大、复杂性强的特点。分布在不同网络元素上的代理收集了大量的KPI数据,即网络性能的关键指标。这些时间序列数据可以相互影响。本文提出了一种改进的AFP-Growth算法来挖掘电信领域的交易间时间序列关联规则。该算法在改进传统的不生成条件子树的FP-Growth算法的基础上,引入了一种新的关联度量,即全置信度,从而解决了电信数据挖掘中的零交易和负相关问题。此外,该算法利用全置信度的特征,改进了FP-Tree的剪枝规则,提高了FP-Tree搜索的有效性,从而提高了时间和空间效率。
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引用次数: 2
Smart Wheelchair design and monitoring via wired and wireless networks 智能轮椅的设计和监控通过有线和无线网络
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356324
Y. Touati, A. Ali-Chérif, B. Achili
Several works for handicapped people's help and assistance have been investigated in the last decade and particularly those concerning hardware and software architectures design related to automated wheelchairs. Thus, make a wheelchair intelligent and autonomous, leads to develop new strategies taking into account in one hand, environment dynamics, and in other hand, recent communication technologies such as ad hoc radio networks, sensor networks, wireless mesh networks, etc. The aim of this paper is to present new hardware and software architecture of an intelligent system called LIASD-Wheelchair. This system is a kind of home welfare tools used to assists and help the handicapped and elderly people to gain mobility and lead to independent life. The developed wheelchair moves fully autonomously according to environment changes and uses a multimode communication for its maneuverability and localization via Wi-Fi communication network. To test the effectiveness of the developed system, an experiment is designed in this respect.
在过去的十年里,人们研究了一些关于残疾人帮助和帮助的工作,特别是那些涉及自动轮椅硬件和软件架构设计的工作。因此,使轮椅智能化和自主化,导致开发新的策略,一方面考虑环境动态,另一方面考虑最新的通信技术,如自组织无线网络,传感器网络,无线网状网络等。本文的目的是提出一种名为liasd -轮椅的智能系统的新硬件和软件架构。该系统是一种用于帮助残疾人和老年人获得行动能力和独立生活的家庭福利工具。开发的轮椅可以根据环境变化完全自主移动,并通过Wi-Fi通信网络使用多模式通信,以提高机动性和定位能力。为了验证所开发系统的有效性,设计了这方面的实验。
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引用次数: 15
Blind speech separation using OPCA method 基于OPCA方法的盲语音分离
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356353
Y. Benabderrahmane, D. O'Shaughnessy, S. Selouani
During recent decades, much attention has been given to the separation of mixed sources, in particular for the blind case where both the sources and the mixing process are unknown and only recordings of the mixtures are available. In several situations it is desirable to recover all sources from the recorded mixtures, or at least to segregate a particular source. Furthermore, it may be useful to identify the mixing process itself to reveal information about the physical mixing system. This paper deals with blind speech separation of instantaneous mixtures of two noisy speech signals. The separation criterion is based on Oriented Principal Components Analysis (OPCA) method. OPCA is a (second order) extension of standard Principal Component Analysis (PCA) aiming at maximizing the power ratio of a pair of signals. It is shown that OPCA, preceded by almost arbitrary temporal filtering, can be used for blindly separating temporally signals from their linear instantaneous mixtures. The advantage over other second order techniques is the lack of the pre-whitening (or sphering) step. OPCA models proposed earlier are used in simulations to separate a number of artificial sources demonstrating the validity of the method [1].
近几十年来,人们对混合源的分离给予了很大的关注,特别是对于源和混合过程都是未知的,只有混合物的记录可用的盲目情况。在一些情况下,需要从记录的混合物中恢复所有的源,或至少分离出一个特定的源。此外,识别混合过程本身以揭示有关物理混合系统的信息可能是有用的。本文研究了两种含噪语音信号瞬时混合的盲分离问题。分离准则基于定向主成分分析法(OPCA)。OPCA是标准主成分分析(PCA)的一种(二阶)扩展,目的是使一对信号的功率比最大化。结果表明,在OPCA之前进行几乎任意的时间滤波,可以用于从时间信号的线性瞬时混合物中盲目分离时间信号。与其他二阶技术相比,优点是不需要预美白(或球化)步骤。之前提出的OPCA模型在模拟中用于分离许多人工源,证明了该方法的有效性[1]。
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引用次数: 1
Performing high level tasks with a sole microcontroller-based mobile robot - issues, algorithms and experiments 基于微控制器的移动机器人执行高级任务-问题,算法和实验
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356394
N. K, L. Vachhani, Rajarao M.V., S. K.
Autonomous robotic navigation and mapping have been of tremendous interest during the last decade. While several approaches have been presented, little is known about performing these tasks when constraints are placed on the processing resources and sensors. This paper studies the effectiveness in performing a few high level tasks when a mobile robot is equipped merely with a low-end microcontroller and four ultrasonic sensors. It is shown that the data memory on the microcontroller plays a crucial role in map construction of indoor environment. Four sensors are shown to be adequate for good quality map construction and for following a wall reasonably well. Experiments on map construction and wall following in an indoor environment using a mobile robot equipped with merely an Atmel 89C52 (and no external memory) are presented.
在过去的十年中,自主机器人导航和测绘已经引起了极大的兴趣。虽然已经提出了几种方法,但当处理资源和传感器受到限制时,对执行这些任务知之甚少。本文研究了当移动机器人仅配备一个低端微控制器和四个超声波传感器时,其执行一些高级任务的有效性。研究表明,单片机上的数据存储在室内环境地图的绘制中起着至关重要的作用。四个传感器被证明足以用于高质量的地图构建和相当好地跟踪墙壁。本文介绍了一个仅配备Atmel 89C52(无外部存储器)的移动机器人在室内环境下的地图构建和墙壁跟踪实验。
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引用次数: 0
Performance analysis of detection schemes in MIMO spatially correlated channels MIMO空间相关信道中检测方案的性能分析
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356303
A. A. Khan, S. Irteza, Farhan Khawar, Momin Shahab, S. I. Shah
The promise of substantial capacity increase by exploiting spatial diversity has made MIMO systems a new frontier in wireless communication research, but this performance gain is theoretical and does not take real world impairments like channel correlation into account. A lot of work has been done on MIMO detectors. However performance analysis in spatially correlated channels in real world scenarios is lacking. In this paper, we investigate the effects of channel correlation on the performance of existing MIMO detectors like linear detectors (ZF), non-linear detectors (V-BLAST) and exact decoders (Sphere Decoders).
通过利用空间分集大幅增加容量的前景使MIMO系统成为无线通信研究的新前沿,但这种性能增益是理论上的,并没有考虑到现实世界的缺陷,如信道相关。在MIMO探测器上已经做了很多工作。然而,缺乏对实际场景中空间相关信道的性能分析。在本文中,我们研究了信道相关对现有MIMO检测器如线性检测器(ZF)、非线性检测器(V-BLAST)和精确解码器(Sphere decoders)性能的影响。
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引用次数: 0
Application of artificial neural network in detection of probing attacks 人工神经网络在探测攻击检测中的应用
Pub Date : 2009-12-18 DOI: 10.1109/ISIEA.2009.5356382
I. Ahmad, A. Abdullah, Abdullah S Alghamdi
The prevention of any type of cyber attack is indispensable because a single attack may break the security of computer and network systems. The hindrance of such attacks is entirely dependent on their detection. The detection is a major part of any security tool such as Intrusion Detection System (IDS), Intrusion Prevention System (IPS), Adaptive Security Alliance (ASA), check points and firewalls. Consequently, in this paper, we are contemplating the feasibility of an approach to probing attacks that are the basis of others attacks in computer network systems. Our approach adopts a supervised neural network phenomenon that is majorly used for detecting security attacks. The proposed system takes into account Multiple Layered Perceptron (MLP) architecture and resilient backpropagation for its training and testing. The system uses sampled data from Kddcup99 dataset, an attack database that is a standard for evaluating the security detection mechanisms. The developed system is applied to different probing attacks. Furthermore, its performance is compared to other neural networks' approaches and the results indicate that our approach is more precise and accurate in case of false positive, false negative and detection rate.
预防任何类型的网络攻击都是必不可少的,因为一次攻击就可能破坏计算机和网络系统的安全。阻止这种攻击完全取决于对它们的探测。检测是任何安全工具的主要组成部分,如入侵检测系统(IDS)、入侵防御系统(IPS)、自适应安全联盟(ASA)、检查点和防火墙。因此,在本文中,我们正在考虑一种探测攻击的方法的可行性,这些攻击是计算机网络系统中其他攻击的基础。我们的方法采用了一种主要用于检测安全攻击的监督神经网络现象。该系统采用多层感知器(MLP)结构和弹性反向传播方法进行训练和测试。系统使用来自Kddcup99数据集的采样数据,该数据集是评估安全检测机制的标准攻击数据库。所开发的系统应用于不同的探测攻击。此外,将其性能与其他神经网络方法进行了比较,结果表明我们的方法在假阳性、假阴性和检出率方面都更加精确和准确。
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引用次数: 57
期刊
2009 IEEE Symposium on Industrial Electronics & Applications
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