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2020 5th International Conference on Automation, Control and Robotics Engineering (CACRE)最新文献

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Dynamic Optimal Scheduling of Microgrid Based on ε constraint multi-objective Biogeography-based Optimization Algorithm 基于ε约束多目标生物地理优化算法的微电网动态优化调度
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9230079
Bo Li, Jue Wang, Nan Xia
Aiming at the important research topic of optimal scheduling in microgrid field, the model for multi-objective optimal dispatching of microgrid is established with the objective of minimum economic and environmental treatment costs. On this basis, the model is organically integrated with constraint handling technology, multi-objective optimization and biogeography-based optimization algorithm and then a constrained multi-objective evolutionary model for biogeography-based optimization is further established. The corresponding constraint handling mechanism, the determining strategy of habitat suitability index and migration strategy are improved, and the convergence performance and the distribution uniformity of Pareto frontier for multi-objective evolutionary algorithm are effectively enhanced. Applied to the optimal scheduling of typical microgrid systems, the effectiveness of the proposed model and method is verified.
针对微网优化调度这一重要研究课题,以经济和环境处理成本最小为目标,建立了微网多目标优化调度模型。在此基础上,将约束处理技术、多目标优化和基于生物地理的优化算法有机地结合起来,进一步建立了基于生物地理的优化约束多目标进化模型。改进了相应的约束处理机制、生境适宜性指数确定策略和迁移策略,有效提高了多目标进化算法的收敛性能和Pareto边界分布均匀性。应用于典型微网系统的优化调度,验证了所提模型和方法的有效性。
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引用次数: 1
Mobile Robot Localization Using Soft Sensor 基于软传感器的移动机器人定位
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9229997
Xiao Li, Dan Wang, Yancheng Liu, Zhouhua Peng
This paper presents a new approach to fuse information in special form. To determine the position and heading of mobile robot, the information from fixation vision geometric constraint must be exploited. However, geometric constraint is not measurement data from sensor, cannot be fused directly. Therefore the concept of “soft sensor” is adopted. Its application to mobile robot localization is shown with simulation in this paper.
本文提出了一种特殊形式信息融合的新方法。为了确定移动机器人的位置和方向,必须利用固定视觉的几何约束信息。然而,几何约束不是来自传感器的测量数据,不能直接融合。因此采用了“软传感器”的概念。通过仿真说明了该方法在移动机器人定位中的应用。
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引用次数: 0
Application of Improved Artificial Bee Colony Algorithm in constant pressure water supply system 改进人工蜂群算法在恒压供水系统中的应用
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9230243
Mingzhu Li, Xi Feng
Due to the hysteresis and non-linearity of constant pressure water supply control system, it is difficult to realize accurate control of water supply pressure. To address this problem, an IABC-PID control algorithm based on improved artificial bee colony algorithm is proposed in this paper. To address the shortcomings of the basic artificial bee colony algorithm, which converges slowly and is prone to local optimality, a full dimensional learning strategy is introduced in the neighborhood search of the employed foragers. At the same time, Gaussian variation and chaotic perturbations are introduced to enhance the local search capability and increase the population diversity, thus speeding up the convergence speed and improving the search accuracy. The simulation results show that the IABC- PID control algorithm outperforms the ABC-PID method in terms of convergence speed, search accuracy and operational stability. Compared with the response curve method, the IABC-PID algorithm has no overshoot, small adjustment time, better dynamic performance, steady-state performance and robustness. The algorithm provides a theoretical basis for real-time online PID parameter rectification of constant pressure water supply system and provides an effective means for energy saving and consumption reduction of pumps.
由于恒压供水控制系统的滞后性和非线性,难以实现供水压力的精确控制。针对这一问题,本文提出了一种基于改进人工蜂群算法的IABC-PID控制算法。针对基本人工蜂群算法收敛速度慢、容易出现局部最优的缺点,在受雇觅食者的邻域搜索中引入了全维学习策略。同时,引入高斯变异和混沌扰动增强了局部搜索能力,增加了种群多样性,从而加快了收敛速度,提高了搜索精度。仿真结果表明,IABC- PID控制算法在收敛速度、搜索精度和运行稳定性方面都优于ABC-PID控制方法。与响应曲线法相比,IABC-PID算法无超调,调整时间短,具有更好的动态性能、稳态性能和鲁棒性。该算法为恒压供水系统的实时在线PID参数整流提供了理论依据,为水泵节能降耗提供了有效手段。
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引用次数: 0
A Method of Prediction for Transformer Malfunction Based on Oil Chromatography 基于油色谱法的变压器故障预测方法
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9230296
Hao Wu, Yang Zhou, Chuanqi Yang, Hongmei Zhu, Dongxin Hao, Shuangzan Ren
Electric power transformer is one of the most necessary part in power system, and hence, it’s significant to diagnose the transformer malfunction in advance; A methods of prediction for transformer malfunction based on oil chromatography is described; 4 models for time series prediction are illustrated, and the specific methods for model identification and ordering are explained; The time series model was applied to predict transformer malfunction in the oil chromatography analysis example, and accurate results were obtained, which shows that the method described in this paper can effectively predict the concentration of dissolved gas in transformer oil in future, and diagnose the types of malfunctions so that meet the actual need of projects.
电力变压器是电力系统中必不可少的部件之一,因此对变压器的故障进行提前诊断具有重要意义。介绍了一种基于油色谱法的变压器故障预测方法;阐述了4种时间序列预测模型,并对模型识别和排序的具体方法进行了说明;通过油色谱分析实例,将时间序列模型应用于变压器故障预测,取得了较准确的结果,表明本文方法能够有效预测未来变压器油中溶解气体的浓度,诊断故障类型,满足工程实际需要。
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引用次数: 5
Distributed Parameter Estimation Using Invariant Manifold Approach 基于不变流形方法的分布参数估计
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9230115
Jingping Shao, Yangyang Chen
A novelty of distributed parameter estimation strategy for a class of nonlinear system with a time-varying parameter is proposed in this paper. The approach relies upon the concepts of invariant manifold and cooperative persistent excitation condition, does not require a priori knowledge of the time-varying parameters. In addition, it is shown that the parameter estimation error is not only bounded but also can converge to a small neighborhood of the origin for sufficiently large value of gain. A numerical simulation example is presented to demonstrate the effectiveness of the proposed method.
针对一类具有时变参数的非线性系统,提出了一种新颖的分布参数估计策略。该方法依赖于不变流形和协同持久激励条件的概念,不需要对时变参数的先验知识。此外,还证明了当增益值足够大时,参数估计误差不仅是有界的,而且可以收敛到原点的小邻域内。最后通过数值仿真实例验证了该方法的有效性。
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引用次数: 0
EEG Enhancement by Auto DNNs with Regularization of Spatial Feature Loss 基于空间特征损失正则化的自dnn脑电增强
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9229989
Fengjie Cao, Xuemei Xu, Peng Ouyang, Yipeng Ding, K. Sun
Electroencephalography (EEG) can be applied in medical diagnosis forecasts via using Brain-Computer Interface (BCI) technology. EEG signals are low voltage signals that are susceptible to various types of noise such as 50 Hz power frequency, noise between the electrodes and the skin and so on. In this work, an enhancement method for EEG data based on a deep neural network (DNN) architecture search method in which the spatial feature loss acts as a regularizer while training the end-to-end network for best noise removal effect is proposed. The proposed system realizes noise reduction by using DNNs, which employs an alternative objective function combining spatial feature loss with time-domain feature loss. The spatial feature can be obtained by Common Spatial Pattern (CSP) algorithm. Experimental results show that auto DNNs with regularization of spatial feature loss can efficiently eliminate the simulated noise in EEG data and makes the mean square error between predicted values and real values as small as 0.06. In addition, the proposed objective function outperforms objective function with single time-domain feature loss. Meanwhile, the number of parameters in auto DNNs is obviously less than other models by 81.7% to 94.2% and also less when using proposed objective function than not use it by 28.6%. These results demonstrate that proposed DNNs based method can reduce parameters and computation. Therefore the proposed method is promising for the wearable application and embedded scenarios.
脑电图(EEG)可以通过脑机接口(BCI)技术应用于医学诊断预测。脑电图信号是低压信号,易受各种噪声的影响,如50hz工频、电极与皮肤之间的噪声等。本文提出了一种基于深度神经网络(DNN)结构搜索方法的脑电数据增强方法,该方法将空间特征损失作为正则化器,同时训练端到端网络以获得最佳的去噪效果。该系统利用深度神经网络实现降噪,该深度神经网络采用空间特征损失与时域特征损失相结合的替代目标函数。空间特征可以通过公共空间模式(CSP)算法得到。实验结果表明,对空间特征损失进行正则化的自动深度神经网络能够有效地消除脑电数据中的模拟噪声,使预测值与实测值的均方误差小于0.06。此外,所提目标函数优于单时域特征损失的目标函数。同时,auto dnn的参数数量明显比其他模型少81.7% ~ 94.2%,使用目标函数时也比不使用目标函数时少28.6%。结果表明,基于深度神经网络的方法可以减少参数和计算量。因此,该方法在可穿戴应用和嵌入式场景中具有广阔的应用前景。
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引用次数: 0
Design of A Novel Transformable Centaur Robot with Multilateral Control Interface for Search and Rescue Missions 一种具有多边控制接口的新型可变形半人马搜救机器人设计
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9230311
Xiangxu Lin, Saifuddin Mahmud, S. Román, Alfred Shaker, Zachary Law, MinYi Lin, Jong-Hoon Kim
Increasing occurrences of natural and man-made disasters have driven the demand for search and rescue (S&R) robots. However, state-of-the-art S&R robots serve as specialpurpose machines with limited use cases. This is in part due to a lack of human-centered designs, particularly in multilateral control and human-robot interactions. Thus, we propose TeleBot-R2, a novel transformable centaur-robot. This robot extends our work presented at the 2018 World Robot Summit, a hybrid humanoid (immersive telepresence) robot with a multilateral control system. Our new version introduces a dual flipper caterpillar track base with an enhanced mechanically dynamic humanoid upper body. This transformer robot can contract into multiple configurations that change it’s support polygon and means of locomotion - allowing it to navigate more efficiently through different terrains. Operational awareness is heightened through a VR immersive control interface that interacts with an AI-assisted multilateral control system. This paper presents our mechanical design, control architecture, immersive interfaces, and AI-assistant.
越来越多的自然和人为灾害的发生推动了对搜索和救援机器人的需求。然而,最先进的S&R机器人是有限用例的特殊用途机器。这在一定程度上是由于缺乏以人为本的设计,特别是在多边控制和人机交互方面。因此,我们提出TeleBot-R2,一种新颖的可变形半人马机器人。这个机器人扩展了我们在2018年世界机器人峰会上展示的工作,一个具有多边控制系统的混合人形(沉浸式远程呈现)机器人。我们的新版本引入了一个双鳍履带式履带基地与一个增强的机械动态人形上身。这个变压器机器人可以收缩成多种配置,改变它的支撑多边形和运动方式,使它能够更有效地在不同的地形中导航。通过与人工智能辅助的多边控制系统交互的VR沉浸式控制界面,提高了操作意识。本文介绍了我们的机械设计、控制架构、沉浸式界面和人工智能助手。
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引用次数: 0
Kinematic analysis of a fully-decoupled parallel manipulator with pure translations 纯平移完全解耦并联机械臂的运动学分析
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9229908
Qi Zou, Dan Zhang, Shuo Zhang, Xueling Luo
A spatial 3 degree-of-freedom parallel mechanism is proposed in this paper. It contains only Pa joint and revolute joints in each kinematic chain. The motion of the moving platform is verified by means of the theory of screw. The simple and intrinsic geometric relations are employed to solve both the inverse and forward positions and fully-decoupled property. Its singularity configurations are found by using the Jacobian matrix. The translational workspace is obtained and verified through considering joints and linkages limitations.
提出了一种空间三自由度并联机构。它在每条运动链中只包含Pa关节和转动关节。利用螺旋理论对运动平台的运动进行了验证。利用简单的固有几何关系求解正、逆位置和完全解耦性质。利用雅可比矩阵求出其奇异位形。通过考虑关节和连杆机构的限制,得到并验证了平移工作空间。
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引用次数: 0
Research on Matching Method of Ocean Observation Data Based on DC-WKNN Algorithm 基于DC-WKNN算法的海洋观测数据匹配方法研究
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9230223
Jie Chen, Yifan Hu, Hailin Liu, Bin Lv, Lin Cao, Hui Li
According to the characteristics of ocean observation data, such as massive, heterogeneous, multi-source, multi-class and multi-dimensional, it is difficult to classify and match ocean observation data quickly and accurately with traditional KNN for large-scale integration. A method of ocean observation data matching based on density clipping and weighted KNN (DC-WKNN) is proposed in this paper. Firstly, according to the distribution density of training samples between different classes, the clipping rule is set up. It can cut out representative samples as new training samples, and reduce the calculation amount of traditional KNN algorithm, so that it can improve the efficiency. Then, according to the distribution characteristics of the training samples in the class, the weight assignment model is established. It can allocate the weight for each training sample and decrease the misjudgment of the boundary points far away from the center of the class, and improve the accuracy. A large number of experimental results based on the data set of the seafloor observatory network show that the calculation complexity is reduced by about 20%. And the accuracy of the algorithm is better than that of the traditional KNN and other improved algorithms. It has good performance for big data classification, especially for the classification of ocean observation data characteristics.
由于海洋观测数据具有海量、异构、多源、多类、多维度等特点,传统的KNN难以快速准确地对海洋观测数据进行分类和匹配,难以进行大规模集成。提出了一种基于密度裁剪和加权KNN的海洋观测数据匹配方法(DC-WKNN)。首先,根据训练样本在不同类别之间的分布密度,建立裁剪规则;它可以将有代表性的样本剔除作为新的训练样本,减少传统KNN算法的计算量,从而提高效率。然后,根据训练样本在类中的分布特征,建立权重分配模型;它可以为每个训练样本分配权值,减少了远离类中心的边界点的误判,提高了准确率。基于海底观测网数据集的大量实验结果表明,该方法的计算复杂度降低了20%左右。该算法的精度优于传统的KNN和其他改进算法。对于大数据分类,特别是海洋观测数据特征的分类,具有良好的性能。
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引用次数: 0
Construction of intelligent visual coal and gangue separation system based on CoppeliaSim 基于CoppeliaSim的智能目视煤矸石分选系统的构建
Pub Date : 2020-09-01 DOI: 10.1109/CACRE50138.2020.9230077
Zhiyuan Sun, Dongjun Li, Linlin Huang, Biao Liu, Ruiqing Jia
Due to the energy composition of China rich in coal, poor in oil and low in gas, coal will continue to be the main energy source in China for a long time. In order to improve the intelligence level of coal mine and realize the efficient and clean utilization, coal and gangue sorting is the research focus of many experts and scholars. At present, the construction of the intelligent visual coal and gangue separation platform is complex, the algorithm effect is difficult to verify, and the research and development cost is high, which is not conducive to the progress of technology. In this paper, the intelligent visual gangue sorting system is built based on the robot simulator CoppeliaSim, combining the robot virtual simulation technology with intelligent coal gangue separation system. The modeling of the whole system is highly close to the real scene, and is coordinated with the software program, which lays a good foundation for the intelligent coal and gangue separation, provides a new way to solve the problem of system construction, and improves the level of intelligence by using virtual and real methods.
由于中国的能源构成是富煤、贫油、低气,在相当长的一段时间内,煤炭仍将是中国的主要能源。为了提高煤矿的智能化水平,实现高效清洁利用,煤矸石分选是众多专家学者的研究重点。目前,智能可视化煤矸石分选平台建设复杂,算法效果难以验证,研发成本高,不利于技术进步。本文基于机器人模拟器CoppeliaSim,将机器人虚拟仿真技术与智能煤矸石分选系统相结合,构建了智能视觉煤矸石分选系统。整个系统的建模高度接近真实场景,并与软件程序相协调,为智能煤矸石分选奠定了良好的基础,为解决系统建设问题提供了新的途径,虚实结合的方法提高了系统的智能化水平。
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引用次数: 6
期刊
2020 5th International Conference on Automation, Control and Robotics Engineering (CACRE)
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