【最新专题】自动化与计算方法的研究进展
论文目录概览
Vol.15, No.2
(点击序号阅读全文)
专题:
Automation and Computing Advancements for Future Industries
①State Estimation Using Non-uniform and Delayed Information: A Review
②Feedforward Control for Wind Turbine Load Reduction with Pseudo-LIDAR Measurement
③A Position and Torque Switching Control Method for Robot Collision Safety
④Rotation Scaling and Translation Invariants of 3D Radial Shifted Legendre Moments
⑤A Fuzzy Neural Network Based Dynamic Data Allocation Model on Heterogeneous Multi-GPUs for Large-scale Computations
研究论文:
⑥Large-scale 3D Semantic Mapping Using Stereo Vision
⑦Multi-sensor Fusion for Wheelchair Position Estimation with Unscented Kalman Filter
⑧Sliding Mode Guidance Law Considering Missile Dynamic Characteristics and Impact Angle Constraints
⑨Improving on Linear Scan Register Allocation
⑩Sliding Mode Control for Flexible-link Manipulators Based on Adaptive Neural Networks
论文详细摘要
Details
专题:
Automation and Computing Advancements for Future Industries
客座编辑:
Prof. Zhijie Xu, University of Huddersfield, UK
Prof. Dongbing Gu, University of Essex, UK
Prof. Xichun Luo, University of Strathclyde, UK
1State Estimation Using Non-uniform and Delayed Information: A Review
摘要节选:
状态估计技术(state estimation techniques)中,不一致及滞后信息(nonuniform and delayed information)整合方法的研究和应用对于柔性传感器(soft sensor)的发展十分重要。本文综述了一些整合方法,同时提出一种分类方法(taxonomy),可快速地选择状态估计器(state estimator)。分类根据估计器类型、方法及使用工具(used tool)展开。最后,文章展示了该分类方法在部分研究中的应用。
关键词:
State estimation, asynchronism, delayed measurement, non-uniform information, taxonomy.
作者信息:
Jhon A. Isaza, Hector A. Botero, Hernan Alvarez
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-017-1106-7
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1977.shtml
2Feedforward Control for Wind Turbine Load Reduction with Pseudo-LIDAR Measurement
摘要节选:
基于虚拟LIDAR(light detection and ranging)风速测量,本文设计出一种增益调度前馈控制器(gain-scheduled feedforward controller),用以增强基线反馈控制器(augment the baseline feedback controller),以期降低风力机的负荷(load reduction)。通过一款商用软件Bladed,可生成虚拟LIDAR测量数据。本研究还对非线性风力机模型做了简化和线性处理。前馈和基线反馈控制在5MW工业风力机模型上进行了仿真实验,结果表明:本研究所提出的控制策略能够降低大型风力机风轮和塔楼的负荷。
关键词:
Wind turbine control, light detection and ranging (LIDAR) measurement, feedforward control, load reduction, gain scheduling, disturbance rejection.
作者信息:
Jie Bao, Hong Yue, William E. Leithead, Ji-Qiang Wang.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-017-1103-x
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1979.shtml
3A Position and Torque Switching Control Method for Robot Collision Safety
摘要节选:
随着人机交互技术的广泛应用,设计机器人控制系统时,机器人的控制特性(control characteristics)、对安全的影响(effects on safety)、操作性能都应考虑在内。本文提出一种位置及转矩控制方法(position and torque switching control method),用以保证人机同时工作时,机器人的安全性和性能。该控制方法包括两种模式:位置控制模式(position control mode)和转矩控制模式(torque control mode)。正常情况下,机器人以位置控制模式运行,可快速追踪轨迹。一旦机器与人发生冲突,则立即进入转矩控制模式,影响力将会控制在安全范围内。冲突解决后,机器人会自动调整至位置控制模式。
关键词:
Human-robot interaction, position control, torque control, switching control, robot collision safety.
作者信息:
Zhi-Jing Li, Hai-Bin Wu, Jian-Ming Yang, Ming-Hao Wang, Jin-Hua Ye.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-017-1104-9
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1978.shtml
4Rotation Scaling and Translation Invariants of 3D Radial Shifted Legendre Moments
摘要节选:
研究提出一种新型3D径向复数矩(3D radial complex moment)。同时,借助体积图像的球面表示(spherical representation of volumetric image),得出3DSRSLMs(3D substituted radial shifted Legendre moments)和3DWRSLMs(3D weighted radial one)。为验证方法的可靠性,研究者将其应用于解决三类问题:旋转、缩放和平移。结果表明:无论有无噪音,3DSRSLMs和3DWRSLMs的性能均优于3D径向复数矩(3D radial complex moments)。同时,通过3DSRSLMs 和3DWRSLMs两种方法,可快速重建原始图像(original image)。
关键词:
3D radial complex moments, 3D radial shifted Legendre radial moments, radial shifted Legendre polynomials, 3D image reconstruction, 3D rotation scaling translation invariants, 3D image recognition, computational complexities.
作者信息:
Mostafa El Mallahi, Jaouad El Mekkaoui, Amal Zouhri, Hicham Amakdouf, Hassan Qjidaa.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-017-1105-8
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1976.shtml
5A Fuzzy Neural Network Based Dynamic Data Allocation Model on Heterogeneous Multi-GPUs for Large-scale Computations
摘要节选:
本文基于新型模糊神经网络(innovative fuzzy neural network),提出一种动态负载平衡模型(novel dynamic load balancing (DLB) model),用以在异构GPU节点上(heterogeneous GPU nodes)进行快速的数据分割和分配(data division and allocation)。本研究还提出了定义所有集群和节点(overall cluster and node)性能的五状态反馈机制(5-state parameter feedback mechanism)。相应地,基于模糊神经网络的DLB模型可监测和预测每个节点在不同工作负荷场景(workload scenario)下的性能。改进后的实时自适应调度器(real-time adaptive scheduler)可为每个节点重组输入的数据,从而保证他们运行时的计算性能。实验结果表明:DLB模型具有较强的计算处理能力,在完成复杂计算任务时,能够达到实时和准确的要求。
关键词:
Heterogeneous GPU cluster, dynamic load balancing, fuzzy neural network, adaptive scheduler, discrete wavelet transform.
作者信息:
Chao-Long Zhang, Yuan-Ping Xu, Zhi-Jie Xu, Jia He, Jing Wang, Jian-Hua Adu.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-018-1120-4
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1991.shtml
研究论文
6Large-scale 3D Semantic Mapping Using Stereo Vision
摘要节选:
基于双目立体视觉(binocular stereo vision),本文提出一种生成户外大规模3D致密语义地图(outdoor large-scale 3D dense semantic map)的方法。输入系统的立体彩色图像(stereo color images)来自于一辆移动的小车。首先系统会围绕小车构建一个致密3D空间(dense 3D space),并通过视觉里程(visual odometry)估计摄像机的运动。同时,借助线上深度学习技术完成语义分割(semantic segmentation),语义标签(semantic label)用于验证视觉里程匹配的特征。上述三步计算了输入图像中每一像素的移动(motion)、深度(depth)和语义标签。而后,研究引入体素条件随机场推理(voxel conditional random field (CRF) inference),将语义标签融入体素。再结合语义标签,去除移动物体,从而提升运动分割的准确性(motion segmentation accuracy)。最后从一长串随机图像(arbitrary long image sequence)中生成城市环境的致密3D语义地图。
关键词:
Semantic map, stereo vision, motion segmentation, visual odometry, simultaneous localization and mapping (SLAM).
作者信息:
Yi Yang, Fan Qiu, Hao Li, Lu Zhang, Mei-Ling Wang, Meng-Yin Fu.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-018-1118-y
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1988.shtml
7Multi-sensor Data Fusion for Wheelchair Position Estimation with Unscented Kalman Filter
摘要节选:
本文主要研究室内环境轮椅的位置估计(wheelchair position)和噪音测量(noisy measurements)。基于两轮轴上的安装的里程表(odometers)和磁罗盘(magnetic compass),测量系统可确定位置和方向。传感器得到的数据经过综合后会输入无迹卡尔曼滤波器(unscented Kalman filter)中。本文还提出两种数据融合结构:量测融合(measurement fusion,MF)和状态向量融合(state vector fusion, SVF)。对比研究发现:进行状态估计时,SVF结构相较于MF结构而言,不确定性更高。确定位置时,里程计测量(odometers measurements)的不确定性高于加速度仪(accelerometer measurements)。
关键词:
Data fusion, unscented Kalman filter (UKF), measurement fusion (MF), navigation, state vector fusion (SVF), wheelchair.
作者信息:
Derradji Nada, Mounir Bousbia-Salah, Maamar Bettayeb.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-017-1065-z
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1877.shtml
8Sliding Mode Guidance Law Considering Missile Dynamic Characteristics and Impact Angle Constraints
摘要节选:
为了提升导弹拦截机动目标(missile intercepting maneuvering targets)的准确性,本文基于2D平面(2D plane)上导弹与目标的相对运动(relative motion)方程,提出一种具备碰撞角约束(impact angle constraints)的滑模制导律(sliding mode guidance law)。在非奇异终端滑模的基础上,本文还提出两种限定时间收敛制导律(finite-time convergent guidance law),以及两种应用高阶非奇异终端滑模(higher-order nonsingular terminal sliding mode)、包含动态延时(dynamic delay)的指数收敛制导律(exponential convergent guidance law)。仿真实验表明:在四个目标机动场景中,制导律可有效防止滑模出现抖振现象(chattering phenomenon),同时以理想的扫描角(expected aspect angle),让导弹更精准快速地击中目标。
关键词:
Autopilot, impact angle, nonsingular terminal sliding mode, finite-time convergent, guidance.
作者信息:
Hui-Bo Zhou, Jun-Hong Song, Shen-Min Song.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-016-0953-y
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1935.shtml
9Improving on Linear Scan Register Allocation
摘要节选:
本文提出了一种可用于线性时间(linear time)的寄存器分配和代码生成算法(register allocation and code generation algorithms)。该算法基于抽象解释(abstract interpretation)的数学基础(mathematical foundation)以及抽象级别(level of abstraction)的计算,已经应用于专用库(specialized library)的即时编译(just-in-time compilation)中。图书馆的专业性在于包含专注于嵌入式系统(embedded systems)的公共中间语言处理(common intermediate language, CIL)和低级虚拟机(low level virtual machine, LLVM)应用。
关键词:
Register allocation, just-in-time compilation, code generation, static analysis, dynamic analysis.
作者信息:
Shahrzad Kananizadeh, Kirill Kononenko.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-017-1100-0
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1965.shtml
10Sliding Mode Control for Flexible-link Manipulators Based on Adaptive Neural Networks
摘要节选:
基于自适应RBF神经网络(adaptive radial basis function (RBF) neural network),本文设计出一种针对单杠柔性机械臂(single flexible-link manipulator)的边界层滑模控制器(sliding mode boundary controller)。本文提到的柔性机械臂可以看成是欧拉-伯努利梁(Euler-Bernoulli beam)。通过Hamiltons方法(Hamiltons approach),我们首先得到单杆柔性机械臂的偏微分方程(partial differential equation, PDE)。为提升控制的鲁棒性,所配备的自适应神经逼近器(adaptive neural approximator)可对系统的不稳定性,如建模不确定性(modeling uncertainties)和外部干扰(external disturbances)进行补偿。而后,滑模控制方法使柔性臂关节调整到理想位置,快速压制梁上的振动。基于无限维度模型(infinite dimensional model),借助李雅普诺夫方法(Lyapunov’s method),闭环系统的稳定性得以保障,可避免由传统的有限维度截断模(traditional finite dimensional truncated models)导致的控制溢出(control spillovers)等问题。这一全新的控制器只需测量边界信息,大大便利了工程实践。
关键词:
Sliding mode control, adaptive control, neural network, flexible manipulator, partial differential equation (PDE).
作者信息:
Hong-Jun Yang, Min Tan.
全文链接:
1) SpringerLink:
https://link.springer.com/article/10.1007/s11633-018-1122-2
2) IJAC Website:
http://www.ijac.net/EN/abstract/abstract1997.shtml
IJAC新年首期,重磅来袭(Vol. 14 No.1, Feb. 2017)
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