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2010 5th IEEE Conference on Industrial Electronics and Applications最新文献

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A method of extracting fuzzy control rules of structural vibration using FCM algorithm 一种基于FCM算法的结构振动模糊控制规则提取方法
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5514696
Shuangye Chen, Yawei Chen, Weijing Zhang, W. Yan
A method of extracting fuzzy control rules from sample data is proposed in this paper, which is based on the FCM algorithm. The sample data is gathered in the process of structural vibration control. Firstly, the input and output spaces of the given sample data are divided into several suitable fuzzy regions using FCM algorithm. Secondly, in order to extract the fuzzy control rules automatically, a special network is designed based on the fuzzy region divisions. Finally, the extracted rules are applied to the structural vibration control and the validity of the rules is verified.
提出了一种基于FCM算法的从样本数据中提取模糊控制规则的方法。在结构振动控制过程中采集样本数据。首先,利用FCM算法将给定样本数据的输入输出空间划分为几个合适的模糊区域;其次,为了自动提取模糊控制规则,设计了基于模糊区域划分的特殊网络;最后,将提取的规则应用于结构振动控制,验证了规则的有效性。
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引用次数: 2
Direct adaptive fuzzy-neural-network control for robot manipulator by using only position measurements 基于位置测量的机械臂直接自适应模糊神经网络控制
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5516980
R. Wai, Zhiwei Yang, Chih-Yi Shih
This study focuses on the development of a direct adaptive fuzzy-neural-network control (DAFNNC) for an n-link robot manipulator to achieve high-precision position tracking. In general, it is difficult to adopt a model-based design to achieve this control objective due to the uncertainties in practical applications, such as friction forces, external disturbances and parameter variations. In order to cope with this problem, a DAFNNC strategy is investigated without the requirement of prior system information. In this model-free control topology, a FNN controller is directly designed to imitate a predetermined model-based stabilizing control law, and then the stable control performance can be achieved by only using joint position information. The DAFNNC law and the adaptive tuning algorithms for FNN weights are established in the sense of Lyapunov stability analyses to ensure the stable control performance. Numerical simulations of a two-link robot manipulator actuated by DC servomotors are given to verify the effectiveness and robustness of the proposed methodology. In addition, the superiority of the proposed control scheme is indicated in comparison with proportional-differential control (PDC), fuzzy-model-based control (FMBC), T-S type fuzzy-neural-network control (T-FNNC), and robust-neural-fuzzy-network control (RNFNC) systems.
本文研究了一种直接自适应模糊神经网络控制(DAFNNC),以实现n-连杆机器人的高精度位置跟踪。一般情况下,由于实际应用中存在摩擦力、外界干扰、参数变化等不确定性,很难采用基于模型的设计来实现这一控制目标。为了解决这一问题,研究了一种不需要系统先验信息的DAFNNC策略。在这种无模型控制拓扑中,直接设计FNN控制器来模仿预先确定的基于模型的稳定控制律,然后仅利用关节位置信息就可以实现稳定控制。在李雅普诺夫稳定性分析的意义上,建立了DAFNNC律和FNN权值的自适应整定算法,以保证稳定的控制性能。以直流伺服电机驱动的双连杆机器人为例进行了数值仿真,验证了该方法的有效性和鲁棒性。此外,与比例微分控制(PDC)、基于模糊模型的控制(FMBC)、T-S型模糊神经网络控制(T-FNNC)和鲁棒神经模糊网络控制(RNFNC)系统相比,表明了所提控制方案的优越性。
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引用次数: 4
Integrated UWB and GPS location sensing system in hospital environment 医院环境下UWB与GPS的集成定位传感系统
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5516828
Lijun Jiang, Lim Nam Hoe, Lay Leong Loon
This paper describes a design effort in a smart tracking prototype, in an attempt to provide real-time, mobile and seamlessly indoor/outdoor location tracking for medical staff, patient or instruments in hospital environment, by integrating GPS (Global Position System) with UWB (Ultra Wideband). Ultra Wideband (UWB) technology can locate a person or asset to the accuracy of centimeters. While UWB technology is becoming popular for indoor position tracking, GPS technology has been around for some time for use in outdoor position tracking with an accuracy of 1 to 100 meters depending on the type of equipment used. It is envisaged that it is possible to combine GPS with UWB to give accurate position regardless of where the person or object is in indoor or outdoor. In view of the strong need for indoor-outdoor tracking in many environments such as hospitals, we looked into the possibility of integrating UWB and GPS to provide the target with seamless indoor-outdoor navigation capability and have developed a prototype. The system structure and experimental results will be illustrated in this paper. To our knowledge, no same system is reported yet.
本文介绍了一种智能跟踪原型的设计工作,试图通过GPS(全球定位系统)与UWB(超宽带)的集成,为医院环境中的医务人员、患者或仪器提供实时、移动和无缝的室内/室外位置跟踪。超宽带(UWB)技术可以定位到厘米精度的人或资产。虽然超宽带技术在室内位置跟踪方面越来越受欢迎,但GPS技术在室外位置跟踪方面的应用已经有一段时间了,根据所使用设备的类型,其精度为1到100米。设想将GPS与超宽带结合起来,无论人或物体在室内或室外的位置,都可以提供准确的位置。针对医院等许多环境对室内外跟踪的强烈需求,我们研究了将超宽带与GPS相结合的可能性,为目标提供室内外无缝导航能力,并开发了原型。本文将对系统结构和实验结果进行说明。据我们所知,目前还没有相同系统的报道。
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引用次数: 45
A mixed sensitivity optimization design for a benchmark control problem 基准控制问题的混合灵敏度优化设计
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5515229
Jiann-Shiou Yang
This paper explores a numerical approach of a mixed H2 sensitivity optimization technique to re-design a robust controller for the Grumman F-14 aircraft, one of the IEEE Control Systems Society's benchmark control problems. By operating in the Discrete Fourier Transform (DFT) domain, we convert the H2 control problem into a constrained vector minimization problem in the l2-space. A two-stage solution approach is detailed and the controller is then constructed. The advantage of using the proposed method is that the l2-space solution can be analytically expressed and efficiently calculated via existing multichannel algorithms due to the partially block circular structure of the matrices involved in the DFT domain. The approximation can be made arbitrarily close to the original H2 control problem if the number of the DFT points is large. The simulation results are presented to demonstrate the proposed method.
本文探讨了混合H2灵敏度优化技术的数值方法,以重新设计格鲁曼F-14飞机的鲁棒控制器,这是IEEE控制系统学会的基准控制问题之一。通过在离散傅里叶变换(DFT)域中操作,我们将H2控制问题转化为在12 -空间中的约束向量最小化问题。详细介绍了两阶段求解方法,然后构造了控制器。采用该方法的优点是,由于矩阵在DFT域中具有部分块圆形结构,因此可以通过现有的多通道算法解析表示并有效地计算出12空间解。如果DFT点的数目很大,则可以任意逼近原H2控制问题。仿真结果验证了该方法的有效性。
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引用次数: 0
Dynamic threshold based keyframe detection 基于关键帧检测的动态阈值
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5516644
W. Yao, S. Rahardja
This paper proposes a simple dynamic threshold based method to detect abrupt scene changes for the coding of a video sequence. The detected frames are then encoded as keyframes aiming at improving the coding efficiency of the video sequence. The proposed detection method first replies on the number of INTRA macroblocks that are available during encoding process. The dynamic threshold, which is updated at the frame level, not only utilizes the statistical properties of video sequence but also takes the resolution and QP value into consideration. The detection process is fast and robust. Experimental results show that the proposed method achieves PSNR improvement.
本文提出了一种简单的基于动态阈值的视频序列编码中场景突变检测方法。然后将检测到的帧编码为关键帧,以提高视频序列的编码效率。所提出的检测方法首先对编码过程中可用的INTRA宏块的数量进行应答。动态门限在帧级更新,既利用了视频序列的统计特性,又考虑了分辨率和QP值。检测过程快速,鲁棒性好。实验结果表明,该方法能有效地提高PSNR。
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引用次数: 3
A novel power weighted synchronous control method for parallel inverters 一种新型功率加权并联逆变器同步控制方法
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5514880
W. Shuang, Ma Yundong, Wang Junqi, Jing XiaoLan
For parallel inverters, the sinusoidal output ac voltages in the same-phase should be ensured. This paper presents a power weighted synchronous control method, which is suitable for parallel inverters of different power capabilities. The key concept of the proposed strategy is that the sinusoidal reference signal is decided by the common synchronous pulse signal, which is determined by the majority of the inverters, and the power weighting factor is taken into account. By doing so, the sinusoidal reference signal cannot be interrupted even though one of the modules is fault or dropout. Firstly, the operation principle is described by comparing the conventional method and the proposed method in this paper. Secondly, the hardware implementation is given. Then a detailed reliability failure analysis of synchronous regulation is presented, which shows that higher precision of the control system is obtained compared with the existing methods. At last, the experimental results prove that the control strategy can be well achieved by the designed circuit, and the synchronization of each module is realized.
对于并联逆变器,应保证输出的正弦交流电压在同一相位。本文提出了一种功率加权同步控制方法,适用于不同功率容量的并联逆变器。提出的策略的关键概念是正弦参考信号由大多数逆变器确定的公共同步脉冲信号决定,并考虑功率加权因素。通过这样做,即使其中一个模块出现故障或丢失,正弦参考信号也不会中断。首先,通过对传统方法和本文提出的方法的比较,阐述了该方法的工作原理。其次,给出了硬件实现。然后对同步调节的可靠性失效进行了详细的分析,结果表明,与现有方法相比,该方法获得了更高的控制精度。最后,实验结果证明了所设计的电路能够很好地实现控制策略,并实现了各模块的同步。
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引用次数: 0
Efficiency optimal control in braking process for linear metro 线性地铁制动过程效率优化控制
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5514897
Jianqiang Liu, X. You, T. Zheng
In this paper, a new approach is proposed that increases the power efficiency in braking process for linear induction motor (LIM) drive. Based on the steady-state performance equations of the LIM, the establishment of equations to quantify the power loss in braking process can be deduced. In order to reduce the pump promotes voltage in regenerative braking and decrease the energy loss of linear metro system at the same time, a complex braking control algorithm based on regenerative braking and DC energy-consuming braking, combined with vector control strategy to drive the LIM, is proposed. This algorithm allows the pump promotes voltage in braking process of LIM drive to be restrained without braking resistor while keeping a good dynamic response. The simulated results presented show the validity of the proposed complex braking control method.
本文提出了一种提高直线感应电动机制动过程功率效率的新方法。基于LIM的稳态性能方程,可以推导出量化制动过程功率损失的方程的建立。为了降低再生制动时的泵升电压,同时降低线性地铁系统的能量损失,提出了一种基于再生制动和直流耗能制动的复合制动控制算法,并结合矢量控制策略驱动LIM。该算法可以在不需要制动电阻的情况下对LIM驱动制动过程中的泵升电压进行抑制,同时保持良好的动态响应。仿真结果表明了所提出的复杂制动控制方法的有效性。
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引用次数: 2
Multi-swarm particle swarm optimization based on mixed search behavior 基于混合搜索行为的多群粒子群优化
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5517044
Jing Jie, Wanliang Wang, Chunsheng Liu, Beiping Hou
The paper develops a Multi-swarm particle swarm optimization (MPSO) to overcome the premature convergence problem. MPSO takes advantage of multiple sub-swarms with mixed search behavior to maintain the swarm diversity, and introduces cooperative mechanism to prompt the information exchange among sub-swarms. Moreover, MPSO adopts an adaptive reinitializing strategy guided by swarm diversity, which can contribute to the global convergence of the algorithm. Through the mixed local search behavior modes, the cooperative search and the reinitializing strategy guided by swarm diversity, MPSO can maintain appropriate diversity and keep the balance of local search and global search validly. The proposed MPSO was applied to some well-known benchmarks. The experimental results show MPSO is a robust global optimization technique for the complex multimodal functions.
本文提出了一种多群粒子群优化算法来克服早熟收敛问题。MPSO利用具有混合搜索行为的多子群来保持群体多样性,并引入合作机制来促进子群之间的信息交换。此外,MPSO采用了一种以群体多样性为指导的自适应再初始化策略,有利于算法的全局收敛。通过混合局部搜索行为模式、协同搜索和基于群体多样性的再初始化策略,MPSO能够保持适当的多样性,有效地保持局部搜索和全局搜索的平衡。建议的MPSO已应用于一些知名基准。实验结果表明,MPSO是一种鲁棒的复杂多模态函数全局优化方法。
{"title":"Multi-swarm particle swarm optimization based on mixed search behavior","authors":"Jing Jie, Wanliang Wang, Chunsheng Liu, Beiping Hou","doi":"10.1109/ICIEA.2010.5517044","DOIUrl":"https://doi.org/10.1109/ICIEA.2010.5517044","url":null,"abstract":"The paper develops a Multi-swarm particle swarm optimization (MPSO) to overcome the premature convergence problem. MPSO takes advantage of multiple sub-swarms with mixed search behavior to maintain the swarm diversity, and introduces cooperative mechanism to prompt the information exchange among sub-swarms. Moreover, MPSO adopts an adaptive reinitializing strategy guided by swarm diversity, which can contribute to the global convergence of the algorithm. Through the mixed local search behavior modes, the cooperative search and the reinitializing strategy guided by swarm diversity, MPSO can maintain appropriate diversity and keep the balance of local search and global search validly. The proposed MPSO was applied to some well-known benchmarks. The experimental results show MPSO is a robust global optimization technique for the complex multimodal functions.","PeriodicalId":234296,"journal":{"name":"2010 5th IEEE Conference on Industrial Electronics and Applications","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115282215","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: 12
Improving the efficiency of mixed-structure charge pumps by the multi-phase technique 利用多相技术提高混合结构电荷泵的效率
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5516888
N. Huang, M. Shiau, Z. Hsieh, Hong-Chong Wu, Don-Gey Liu
In this paper, a new design for efficiency enhance switching-capacitor DC-DC voltage converter based on combination of traditional charge-transfer-switch charge pump and cross-coupled output stage. In order to get a high output power and pump-efficiency. By using multi-phase technique, its can increase both of pump-efficiency and power-efficiency. The propose multi-phase mixed-structure charge pump can operate at 1 MHz switching-frequency on the 0.1µF pump-capacitors. After the simulation by using HSPICE 0.35µm TSMC process, our work can converter the input low DC-voltage (VDD=1.5V) up near to 5 times of it (VOUT= 7.4688), the pump-efficiency can reaches to 99.58%, and the output power can be increased. The new proposed charge pump circuit is suitable for low-voltage applications in CMOS process because there is no threshold voltage drop in every stage even at the output stage. A great achievement has been obtained.
本文将传统的电荷转移开关电荷泵与交叉耦合输出级相结合,设计了一种新的提高效率的开关电容DC-DC电压变换器。以获得较高的输出功率和泵效率。采用多相技术,既能提高泵效率,又能提高功率效率。所提出的多相混合结构电荷泵可以在0.1µF的泵电容器上以1 MHz的开关频率工作。采用HSPICE 0.35µm TSMC工艺进行仿真后,我们的工作可以将输入低直流电压(VDD=1.5V)转换为其(VOUT= 7.4688)的近5倍,泵浦效率达到99.58%,输出功率得到提高。新提出的电荷泵电路适用于CMOS工艺中的低压应用,因为即使在输出级,每个级也没有阈值电压降。取得了巨大的成就。
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引用次数: 13
Research and application on improved BP neural network algorithm 改进BP神经网络算法的研究与应用
Pub Date : 2010-06-15 DOI: 10.1109/ICIEA.2010.5514820
R. Xie, Xinmin Wang, Yan Li, Kairui Zhao
As the iterations are much, and the adjustment speed is slow, the improvements are made to the standard BP neural network algorithm. The momentum term of the weight adjustment rule is improved, make the weight adjustment speed more quicker and the weight adjustment process more smoother. The simulation of a concrete example shows that the iterations of the improved BP neural network algorithm can be calculated and compared. Finally, choosing a certain type of airplane as the controlled object, the improved BP neural network algorithm is used to design the control law for control command tracking, the simulation results show that the improved BP neural network algorithm can realize quicker convergence rate and better tracking accuracy.
针对迭代次数多、调整速度慢的特点,对标准BP神经网络算法进行了改进。改进了配重调整规则的动量项,使配重调整速度更快,配重调整过程更平稳。实例仿真表明,改进后的BP神经网络算法可以进行迭代计算和比较。最后,选择某型飞机作为被控对象,采用改进的BP神经网络算法设计控制律进行控制指令跟踪,仿真结果表明,改进的BP神经网络算法能够实现更快的收敛速度和更好的跟踪精度。
{"title":"Research and application on improved BP neural network algorithm","authors":"R. Xie, Xinmin Wang, Yan Li, Kairui Zhao","doi":"10.1109/ICIEA.2010.5514820","DOIUrl":"https://doi.org/10.1109/ICIEA.2010.5514820","url":null,"abstract":"As the iterations are much, and the adjustment speed is slow, the improvements are made to the standard BP neural network algorithm. The momentum term of the weight adjustment rule is improved, make the weight adjustment speed more quicker and the weight adjustment process more smoother. The simulation of a concrete example shows that the iterations of the improved BP neural network algorithm can be calculated and compared. Finally, choosing a certain type of airplane as the controlled object, the improved BP neural network algorithm is used to design the control law for control command tracking, the simulation results show that the improved BP neural network algorithm can realize quicker convergence rate and better tracking accuracy.","PeriodicalId":234296,"journal":{"name":"2010 5th IEEE Conference on Industrial Electronics and Applications","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121769942","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: 36
期刊
2010 5th IEEE Conference on Industrial Electronics and Applications
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