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2022 International Conference on Automation, Robotics and Computer Engineering (ICARCE)最新文献

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Kinematics Analysis of a Fully Driven Single Pendulum Spherical Mobile Robot 全驱动单摆球形移动机器人运动学分析
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046480
Minggang Li, Hanxu Sun, Long Ma, Ping Sun
In order to further improve the reliability of the spherical robot and enrich its motion forms, a fully driven single pendulum spherical robot is proposed. An innovative way of kinematic modeling from pendulum to spherical shell is proposed. The velocity Jacobian matrix and the inverse kinematics solution of velocity level in the slope of the spherical robot are given. The simulation results verify the controllability of the spherical robot and the correctness of the kinematic model.
为了进一步提高球面机器人的可靠性,丰富其运动形式,提出了一种全驱动单摆球面机器人。提出了一种从摆到球壳的运动学建模新方法。给出了球面机器人的速度雅可比矩阵和速度水平在斜率上的运动学逆解。仿真结果验证了球形机器人的可控性和运动学模型的正确性。
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引用次数: 0
A Two-phase Type Identification and Subclass Classification Model for Glass Artifacts 玻璃制品的两阶段类型识别与子类分类模型
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046522
Yutong Li, Zerui Xu, Mizi Sun, Tao Liu, Zheng Chen, R. Qiu
This paper focuses on the type identification and subclass classification of glass based on the chemical composition data of glass artifacts. While many papers have been conducted from the perspective of chemistry majors based on direct machine detection of chemical substances, this paper focuses on the analysis of data on the properties and chemical composition of glass artifacts based on mathematical modeling to develop a two-phase model for glass type identification and subclass classification. Since the application scenario of the model is archaeological species of ancient glass, the glass types considered in this paper are high potassium glass and lead-barium glass, which were widely circulated in ancient China and surrounding countries. Phase I was based on binary logistic regression to determine whether the type of glass artifacts belonged to high potassium glass or lead-barium glass. After testing the test set, the accuracy of type discrimination was 94%. The second phase utilizes SPSS based hierarchical clustering algorithm for subclassification. After that, the appropriate number of subclasses to be divided can be derived based on the folded graph of clustering coefficients derived from the elbow rule. Finally, this paper presents an accuracy test of the model through test subsets and suggests that the idea of using mathematical-statistical modeling methods to analyze the chemical composition of substances can be extended to the studies related to the chemical composition analysis of all artifacts.
基于玻璃制品的化学成分数据,对玻璃进行了类型识别和亚类分类。虽然已有很多论文是从化学专业的角度出发,基于化学物质的直接机器检测,但本文的重点是基于数学建模对玻璃制品的性质和化学成分数据进行分析,建立玻璃类型识别和亚类分类的两相模型。由于模型的应用场景是考古种类的古代玻璃,因此本文考虑的玻璃类型为高钾玻璃和铅钡玻璃,这两种玻璃在古代中国及周边国家广泛流传。第一阶段是基于二元逻辑回归来确定玻璃制品的类型是属于高钾玻璃还是铅钡玻璃。经过对测试集的测试,类型识别的准确率为94%。第二阶段利用基于SPSS的分层聚类算法进行子分类。然后,根据由肘部规则导出的聚类系数折叠图,可以得到适当数量的待划分子类。最后,本文通过测试子集对模型进行了精度检验,并提出利用数理统计建模方法分析物质化学成分的思想可以推广到所有人工制品化学成分分析的相关研究中。
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引用次数: 0
Speech Recognition Model of Civil Aviation Radiotelephony Communication Based on Improved Conformer 基于改进改进型的民航无线电话通信语音识别模型
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046493
Ze-ping Xiao, Guimin Jia, Bo Shi
Radiotelephony communication has a special grammatical structure and pronunciation, and it is difficult to apply the model of generic speech recognition directly to the field of radiotelephony communication. We propose a Conv1DSlide-Conformer model for speech recognition of radiotelephony communication. The sliding-window attention mechanism is used instead of the self-attention mechanism to improve the decoding speed of the model and increase the adaptability of the model to radiotelephony communication. The convolutional module is used instead of the feedforward neural network module to make the encoder focus more on local information. The improved Conformer model processes the FBANK features of radiotelephony communication and can extract high-dimensional features that better fit the characteristics of radiotelephony communication. The use of concatenated temporal classification (CTC) combined with a data augmentation strategy assists training to speed up convergence during model training and reduce the complexity of model training. Decoding is assisted by CTC and language models to improve the performance of speech recognition. The experimental results show that the improved Conformer speech recognition model in this paper reduces the word error rate to 8.1% and 7.8% on the actual Chinese radiotelephony communication speech dataset.
无线电话通信具有特殊的语法结构和发音,通用语音识别模型难以直接应用于无线电话通信领域。提出了一种用于无线电话通信语音识别的Conv1DSlide-Conformer模型。采用滑动窗口注意机制代替自注意机制,提高了模型的解码速度,增强了模型对无线电话通信的适应性。使用卷积模块代替前馈神经网络模块,使编码器更关注局部信息。改进的Conformer模型对无线电话通信的FBANK特征进行处理,能够提取出更符合无线电话通信特征的高维特征。将串联时间分类(CTC)与数据增强策略相结合,有助于训练过程中加快收敛速度,降低模型训练的复杂性。通过CTC和语言模型辅助解码,提高了语音识别的性能。实验结果表明,本文改进的Conformer语音识别模型在实际中文无线电话语音数据集上的错误率分别降至8.1%和7.8%。
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引用次数: 0
Enterprise Pollution Emission Monitoring System Based on Deep Learning of Power Data 基于电力数据深度学习的企业污染排放监测系统
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046638
Lin Zhao, H. Wang, Zhen-Yu Zhang, Shu-Ming Feng, W. Gu, Xu Shi, Jialiang Miao
The current situation of polluting enterprises is that they are numerous and widely distributed. The traditional supervision means only have regular inspection and public reporting, which is difficult to achieve effective monitoring. Based on the existing hardware of intelligent electricity meters, combined with Internet of things technology, Convolution Recurrent Neural Network, Long Short-Term Memory and other technologies, we build an automatic monitoring system for pollution enterprises based on power data. The system can automatically identify different types of equipment according to the load characteristics. By comparing and analyzing the operation of the enterprise’s pollutant production equipment and pollutant treatment equipment, it can detect the illegal sewage discharge behavior of enterprises in time. The experimental verification shows that the overall recognition mean square error of the model is only 0.5, and the accuracy of the model is higher than that of RNN model and LSTM model. The system can accurately and timely detect violations, filling the regulatory loopholes of the Environmental supervision department for enterprises.
污染企业的现状是数量多、分布广。传统的监督手段只有定期检查和公开报告,难以实现有效的监督。基于现有智能电表硬件,结合物联网技术、卷积递归神经网络、长短期记忆等技术,构建基于电力数据的污染企业自动监控系统。系统可根据负载特性自动识别不同类型的设备。通过对企业污染物生产设备和污染物处理设备的运行情况进行对比分析,可以及时发现企业的违法排污行为。实验验证表明,该模型的整体识别均方误差仅为0.5,模型的准确率高于RNN模型和LSTM模型。该系统能够准确、及时地发现违规行为,填补了环保部门对企业的监管漏洞。
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引用次数: 0
Adaptive Position and Attitude Trajectory Tracking Control for a Quadrotor UAV 四旋翼无人机自适应位置姿态轨迹跟踪控制
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046429
Yixuan Tian, Chen Li, Wenshang Yu, Jing-Jing Xiong
The adaptive trajectory tracking control issue of a small quadrotor unmanned aerial vehicle (UAV) is preliminarily concerned and studied in this paper. The mathematic model of quadrotor UAV is firstly expressed in a simple form such that the model uncertainties and unknown external disturbances can be conveniently taken into account. Then, an adaptive sliding mode controller is developed for estimating model uncertainties and unknown external disturbances such that the robust and adaptive controller is obtained to enhance the robustness of the flight controller. It is found that the trajectories will asymptotically track the corresponding desired position and attitude values even under uncertainties and unknown disturbances. Finally, simulations based on the developed control scheme are conducted to demonstrate the effectiveness while faced with the uncertainties and unknown disturbances.
本文对小型四旋翼无人机的自适应轨迹跟踪控制问题进行了初步研究。首先将四旋翼无人机的数学模型简化,以便于考虑模型的不确定性和未知的外界干扰。然后,开发了一种用于估计模型不确定性和未知外部干扰的自适应滑模控制器,从而获得了鲁棒自适应控制器,增强了飞行控制器的鲁棒性。研究发现,即使在不确定因素和未知干扰下,轨迹也能渐近地跟踪相应的期望位置和姿态值。最后,对所提出的控制方案进行了仿真,验证了该控制方案在面对不确定性和未知干扰时的有效性。
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引用次数: 1
Analytical Calculation of Magnetic Field in 2-Pole Parallel Magnetized Permanent Magnet Machines 两极并联磁化永磁电机磁场解析计算
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046654
Yanyan Zhang, S. Wang, Yimeng Yu, Sisi Chen
To obtain some performances of 2-pole parallel magnetized permanent magnet (PM) machines quickly, a subdomain method to calculating the open-circuit magnetic field in such machines is proposed. According to material and structural characteristics, we can divide the solution region into three parts having regular shapes. The permanent magnet is the first subdomain and the air-gap is the second subdomain and the stator slots is the third subdomain. Each subdomain is expressed by corresponding governing function in polar coordinate system. The governing functions in those subdomains are solved by variable separation method to obtain the expressions of vector potential distribution and then the field solutions are obtained using interface conditions between the subdomains. Taking a 2-pole/12-slot parallel magnetized prototype permanent magnet machine as example, the flux density in each subdomain is solved via the proposed subdomain method and the predictions are validated through corresponding finite element (FE) method. The verification results illustrate that the subdomain method can solve the open-circuit magnetic field precisely in slotted 2-pole parallel magnetized PM machines.
为了快速获得两极并联磁化永磁电机的某些性能,提出了一种计算两极并联磁化永磁电机开路磁场的子域方法。根据材料和结构特点,我们可以将溶液区域划分为形状规则的三个部分。永磁体为第一子域,气隙为第二子域,定子槽为第三子域。每个子域在极坐标系中用相应的控制函数表示。利用变量分离法求解各子域的控制函数,得到矢量势分布表达式,然后利用子域之间的接口条件得到场解。以2极/12槽并联磁化永磁样机为例,采用所提出的子域方法求解各子域的磁通密度,并通过相应的有限元方法对预测结果进行验证。验证结果表明,子域方法可以精确求解开槽两极并联磁化永磁电机的开路磁场。
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引用次数: 0
Knowledge Base Personalized Updation Based on User Profile 基于用户配置文件的知识库个性化更新
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046481
Beiting Yi, Z. Liu
Knowledge graphs are a hot topic in the field of artificial intelligence. From the beginning of Google search to today’s chatbots, big data risk control, securities investment, intelligent medical care, adaptive education and recommendation systems, all are related to knowledge graphs. The popularity of knowledge graphs in the technology field is also increasing year by year. The construction of a knowledge graph mainly involves creating the mirror image of the encyclopedia knowledge base at a certain timestamp. Currently, information is explored so fast that this knowledge will soon become out of date.
知识图谱是人工智能领域的研究热点。从最开始的谷歌搜索到今天的聊天机器人、大数据风控、证券投资、智能医疗、自适应教育、推荐系统,都与知识图谱有关。知识图谱在技术领域的普及程度也在逐年提高。知识图谱的构建主要是在一定时间点创建百科全书知识库的镜像。目前,人们对信息的探索速度如此之快,以至于这些知识很快就会过时。
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引用次数: 0
VINS-Mask: A ROI-mask Feature Tracker for Monocular Visual-inertial System vin -mask:一种用于单目视觉惯性系统的ROI-mask特征跟踪器
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046501
Jiayu Sun, Fangwei Song, Luping Ji
Feature tracker is usually believed to be one of the most important components to the performance influence on a Visual-inertial System (VINS). This paper proposes the VINS-Mask scheme, a more robust feature tracker for monocular VINS through Region of Interest (ROI) masks. It could achieve real-time feature tracking with high accuracy and robustness. Firstly, we propose an edge mask to generate the edge-sensitive feature candidate regions from the incoming image frame. Next, we design an interest point sensitive SuperPoint mask with deep learning framework to obtain repeatable and reliable feature candidate regions. We also dynamically adjust the inflation radius by monitoring the initial status from VINS Initialization module to obtain more accurate ROI masks. Notably, compared with the best baseline approach (i.e., VINS-Mono), our VINS-Mask scheme achieves an average improvement accuracy of 0.068m on the dataset of EuRoc drone. After paper publication, our source codes will be available at https://github.com/sunjia-yuanro/VINS-Mask.git.
特征跟踪器通常被认为是影响视觉惯性系统性能的重要部件之一。本文提出了一种基于感兴趣区域(ROI)掩模的单眼VINS特征跟踪算法——VINS- mask方案。该方法可以实现实时特征跟踪,具有较高的准确性和鲁棒性。首先,我们提出了一种边缘掩模,从输入的图像帧中生成边缘敏感特征候选区域。其次,利用深度学习框架设计兴趣点敏感SuperPoint掩模,获得可重复、可靠的特征候选区域。通过VINS Initialization模块对初始状态的监测,动态调整膨胀半径,获得更精确的ROI掩模。值得注意的是,与最佳基线方法(即VINS-Mono)相比,我们的VINS-Mask方案在EuRoc无人机数据集上的平均精度提高了0.068m。论文发表后,我们的源代码将在https://github.com/sunjia-yuanro/VINS-Mask.git上提供。
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引用次数: 0
An Improved Optimal Trajectory Planning Method of Six-axis Robotic Manipulators along Prescribed Path Constraints 一种改进的六轴机器人沿规定路径约束的最优轨迹规划方法
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046474
Z. Xiong, Liping Chen, J. Ding
Optimal Control Problem (OCP) is a kind of classical problem with the state space equations, containing the optimal trajectory planning problem of robotic manipulators with complicated path constraints. The optimal control method (OCM) which contains direct and indirect methods is efficient to solve this kind of problems. The Pontryagin maximum principle is the core of the indirect method which includes tedious mathematical derivations, and is hard to work with the complex mechanical system. As the result, the direct methods represented by direct collocation method (DCM) are widely used in the engineering field. They transform the original optimal control problem to nonlinear programming problems (NLP), so that the general NLP solver can be used. There are mainly three different methods based on the above direct methods, including convex optimization (CO) methods, numerical integration (NI) methods and dynamic programming (DP) methods. This paper proposes a brand new idea which can streamline the problem description compared to the CO method, extend the general objective function compared to the NI method, and reduce the cost of storage compared to the DP method, and provides a feasible local optimal solution for the problem. In addition, the simulation experiment satisfies the kinodynamic constraints properly, and the validity of the proposed method is confirmed.
最优控制问题(OCP)是一类经典的状态空间方程问题,包含了具有复杂路径约束的机械臂最优轨迹规划问题。最优控制方法(OCM)是解决这类问题的有效方法,它包含了直接方法和间接方法。庞特里亚金极大值原理是间接方法的核心,间接方法的数学推导繁琐,难以处理复杂的机械系统。因此,以直接配点法(DCM)为代表的直接法在工程领域得到了广泛的应用。他们将原来的最优控制问题转化为非线性规划问题(NLP),从而可以使用一般的NLP求解器。在上述直接方法的基础上主要有三种不同的方法,即凸优化(CO)方法、数值积分(NI)方法和动态规划(DP)方法。本文提出了一种全新的思想,它比CO方法简化了问题描述,比NI方法扩展了一般目标函数,比DP方法减少了存储成本,并为问题提供了一个可行的局部最优解。仿真实验较好地满足了动力学约束,验证了所提方法的有效性。
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引用次数: 0
Design and Implementation of MobileRobot Navigation System Based on ROS Platform 基于ROS平台的移动机器人导航系统设计与实现
Pub Date : 2022-12-16 DOI: 10.1109/ICARCE55724.2022.10046597
Zhe-Kun Jin, Weihua Zhou
This paper presented a mobile robot navigation system based on ROS (Robot Operating System). The hardware structure of mobile robot control system based on ROS was designed, and the core module control principle of bottom and top control system was introduced. The software of robot control system was designed based on hierarchical design, including upper computer control system and chassis control system. A specific prototype was designed, and the experimental results showed that the system not only could control the robot in various ways, but also had the functions of autonomous positioning, mapping and obstacle avoidance navigation. It had the advantages of high control accuracy, low cost, modular design and easy expansion.
提出了一种基于ROS (robot Operating system)的移动机器人导航系统。设计了基于ROS的移动机器人控制系统的硬件结构,介绍了底部和顶部控制系统的核心模块控制原理。采用分层设计的方法设计了机器人控制系统软件,包括上位机控制系统和底盘控制系统。设计了一个具体的样机,实验结果表明,该系统不仅能够以多种方式控制机器人,而且具有自主定位、测绘和避障导航等功能。该系统具有控制精度高、成本低、模块化设计、易于扩展等优点。
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引用次数: 2
期刊
2022 International Conference on Automation, Robotics and Computer Engineering (ICARCE)
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