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2023 9th International Conference on Control, Automation and Robotics (ICCAR)最新文献

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Robust Model Predictive Control Based Cooperative Control of Uncertain Connected Vehicle Platoon Systems 基于鲁棒模型预测控制的不确定互联车辆排系统协同控制
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151715
Hao Zeng, Zehua Ye, Dan Zhang
To solve the problem of cooperative control of connected vehicle platoon with parameter uncertainty, this paper proposes a robust model predictive control (RMPC) algorithm which can tolerate the certain parameter uncertainty. A sufficient condition in the form of linear matrix inequalities (LMIs) that guarantees the stability of connected vehicle platoon system with model uncertainty is obtained by using our proposed RMPC algorithm. The optimal feedback control law for the system is obtained by solving some LMIs online at each sampling moment. Finally, the effectiveness of proposed control algorithm is demonstrated through a simulation study of the connected vehicle platoon control system.
针对具有参数不确定性的联网车辆队列协同控制问题,提出了一种能够容忍一定参数不确定性的鲁棒模型预测控制算法。利用本文提出的RMPC算法,得到了具有模型不确定性的联网车辆排系统稳定性的一个充分条件,其形式为线性矩阵不等式(lmi)。通过在线求解各采样时刻的lmi,得到了系统的最优反馈控制律。最后,通过对车联网队列控制系统的仿真研究,验证了所提控制算法的有效性。
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引用次数: 0
Convolutional Radon Transformation Method for Sparse Collective Recognizing 稀疏集合识别的卷积Radon变换方法
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151728
Bowen Cheng, Dan Wang, Jiaxiang Niu, Xiaoda Li, Shenshen Luan
The onboard processing technology based on remote sensing images has become the focus of current research area and received widespread attention. With the increasing amount of onboard data, how to extract effective information from massive data becomes increasingly important. In this paper, a novel sparse collective formation recognizing method is proposed to detect and analyze the formation of the surface ship formation. Firstly, a mobilenet is trained to detect the carrier and single ships to form a binary encoded map, which will be segmented by the DBSCAN method to extract the suspected formation. Then the binary encoded map is processed by the convolutional radon transformation and the result is compared with the standard confidential dataset (SCD) of three formations. Finally the formation type, confidential probability, direction of the surface ship formation was given by the comparison result which has the minimum root-mean-square-error (RMSE) with the SCD. The experimental results show that the proposed method can recognize the ‘Y’, ‘T’ and ‘I’ type surface ship formations with different offsets under more than 60% confidential probability and has a significant feasibility and robustness.
基于遥感图像的机载处理技术已成为当前研究领域的热点,受到了广泛的关注。随着机载数据量的不断增加,如何从海量数据中提取有效信息变得越来越重要。本文提出了一种新的稀疏集体编队识别方法,用于水面舰艇编队的检测和分析。首先,训练一个移动网络来检测航母和单个舰船,形成一个二进制编码的地图,然后用DBSCAN方法对其进行分割,提取可疑的编队。利用卷积radon变换对二值编码映射进行处理,并与三种地层的标准机密数据集(SCD)进行比较。最后通过与SCD的均方根误差(RMSE)最小的比较结果,给出了水面舰艇编队的类型、保密概率和方向。实验结果表明,该方法能在60%以上的保密概率下识别不同偏移量的“Y”、“T”、“I”型水面舰艇编队,具有显著的可行性和鲁棒性。
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引用次数: 0
Design, Development and Implementation of an Effective and Efficient Emergency Third Rail Fishplate Joint Clamp 高效应急三轨鱼尾板接头夹具的设计、开发与实现
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151698
Shawn Jun Jie Pang, Andrew Keong Ng
A third rail joint is an indispensable asset ensuring electrical continuity and third rail alignment in a railway network. When a faulty third rail joint issue is reported during train revenue service, track maintenance staff will implement an interim solution to address it. However, considerable time and effort are often spent on the emergency recovery process. This paper, therefore, aims to design, develop, and implement an Emergency Third Rail Fishplate Joint Clamp (ETJC) that can effectively and efficiently overcome faulty third rail joint issues, while minimizing operational costs. ETJC design, modeling, and simulation were performed using Creo Parametric and Ansys software packages. A static structural analysis of ETJC was conducted. Materials for manufacturing ETJC were carefully selected to withstand any loading and environmental conditions that may occur on the ground. The ETJC was implemented in a train depot track and evaluated via hammer impact tests. Acceleration signals were acquired and analyzed at different locations on the third rail joint with ETJC. Results from simulation and field experiments are consistent and promising, thereby implying that the ETJC can firmly support and align a defective third rail joint.
在铁路网络中,第三轨接头是确保电气连续性和第三轨对齐的不可或缺的资产。当在列车收入服务期间报告出现故障的第三轨连接问题时,轨道维护人员将实施临时解决方案来解决该问题。然而,在紧急恢复过程中往往要花费大量的时间和精力。因此,本文旨在设计、开发和实现一种紧急三轨鱼尾板接头夹具(ETJC),该夹具能够有效地克服三轨接头故障问题,同时最大限度地降低运营成本。使用Creo Parametric和Ansys软件包对ETJC进行设计、建模和仿真。对ETJC进行了静力结构分析。制造ETJC的材料经过精心挑选,可以承受地面上可能发生的任何负载和环境条件。ETJC在火车站轨道上实施,并通过锤击试验进行了评估。利用ETJC对三轨接头不同位置的加速度信号进行了采集和分析。仿真结果与现场试验结果一致,表明ETJC能够牢固地支撑和对准缺陷的三轨接头。
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引用次数: 0
Image Enhancement and Detection of Courier Slips Based on Affine Transform 基于仿射变换的快递单图像增强与检测
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151736
Xin Wang, Fan Xu, Yan Ye, Yishen Xu
Aiming at the problem of courier slip information extraction in a complex environment, a courier slip image enhancement and detection algorithm based on affine transformation is studied and proposed, which enhances the courier bill image in a complex environment by gamma transformation and automatic color equalization algorithm, and quickly locates the courier slip subject based on the barcode position in combination with the actual situation Then the affine transformation is introduced to detect the courier slip. Simulation and comparison experiment is conducted using Python and OpenCV, the results of which show that the algorithm can effectively improve the traditional OCR algorithm when the picture has low brightness or high exposure, the courier bill has a small proportion in the picture and the direction is difficult to determine, and improve the positioning efficiency and recognition success rate of the courier slips. It can be combined with technologies such as robotic arms and AGV omnidirectional mobile chassis and is widely used in various sorting scenarios such as logistics transfer.
针对复杂环境下的快递单信息提取问题,研究并提出了一种基于仿射变换的快递单图像增强与检测算法,该算法通过伽马变换和自动色彩均衡算法对复杂环境下的快递单图像进行增强。结合实际情况,根据条码位置快速定位快递单主体,然后引入仿射变换对快递单进行检测。利用Python和OpenCV进行仿真对比实验,结果表明,该算法在图片亮度低或曝光高、快递单在图片中所占比例小、方向难以确定的情况下,能有效改进传统OCR算法,提高快递单的定位效率和识别成功率。可与机械臂、AGV全向移动底盘等技术相结合,广泛应用于物流转运等各种分拣场景。
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引用次数: 0
Cascade Aggregation Network for Ship Instance Segmentation 基于级联聚合网络的船舶实例分割
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151748
Yuxin Sun, Li Su, Shouzheng Yuan, Hao Meng
Instance segmentation technology has great application in the field of intelligent ships. However, existing methods still have many problems when used directly for ship instance segmentation. For the problems of imprecise bounding box and poor segmentation of detailed contour of ships. We propose a new Cascade Aggregation Network (CAN) for ship instance segmentation. The GIoU loss function is used to optimize the bounding box. And we propose an aggregation segmentation net-work with multi-scale edge aggregation information can improve mask. Finally, CAN can predict more accurate bounding boxes and generates higher quality masks. Experimental comparison and visual analysis show that our CAN outperforms Cascade Mask R-CNN on the ship instance segmentation dataset.
实例分割技术在智能船舶领域有着广泛的应用。然而,现有的方法在直接用于船舶实例分割时仍然存在许多问题。针对边界盒不精确和舰船细节轮廓分割不好的问题。提出了一种用于船舶实例分割的级联聚合网络(CAN)。使用GIoU损失函数对边界框进行优化。提出了一种基于多尺度边缘聚合信息的聚类分割网络。最后,CAN可以预测更准确的边界框,并生成更高质量的蒙版。实验对比和视觉分析表明,该方法在船舶实例分割数据集上的性能优于级联掩码R-CNN。
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引用次数: 0
Path Planning of Autonomous Driving Based on Quadratic Optimization 基于二次优化的自动驾驶路径规划
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151702
Yi Wei, Haiqin Xu
In order to deal with the scenario that require high flexibility in obstacle avoidance, such as urban roads, this paper proposes an autonomous driving path planning algorithm based on quadratic programming (QP). The algorithm proposes an obstacle avoidance cost based on Frenet frame, which can not only satisfy the characteristics of the positive definite quadratic form of the cost function, but also add the obstacle avoidance cost as a soft constraint, and then adapts an iterative solution strategy. The candidate paths are generated by solving the QP problem, the algorithm will output the optimal path, which satisfy the collision detection. The simulation test shows that the algorithm can deal with nudge, lane change and complex obstacle avoidance scenarios.
针对城市道路等对避障灵活性要求较高的场景,提出了一种基于二次规划(QP)的自动驾驶路径规划算法。该算法提出了一种基于Frenet框架的避障代价,既满足代价函数的正定二次型特征,又将避障代价作为软约束加入,采用迭代求解策略。通过求解QP问题生成候选路径,算法将输出满足碰撞检测的最优路径。仿真试验表明,该算法能够处理轻推、变道和复杂的避障场景。
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引用次数: 0
IA*QB: An Efficient Trajectory Planning Approach for the Automatic Berthing of Unmanned Surface Vessel a *QB:一种有效的无人水面舰艇自动靠泊轨迹规划方法
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151734
Shouzheng Yuan, Zhilin Liu, Yuxin Sun, Simeng Song, Zhongxin Wang
Trajectory planning plays an important role in the automatic berthing of Unmanned Surface Vessel (USV). This study proposes IA*QB approach for the USV's berthing trajectory planning in the harbor. First, a global path is obtained by the A * algorithm. Considering the path generated by the traditional A * algorithm is unsuitable for the USV to track at the corners, quasi B-spline is employed to smooth the path. Subsequently, path points with approximately equal spacing are selected as waypoints in the trajectory. Furthermore, the quadratic interpolation method is proposed at the end of the berthing trajectory. Thus, the USV's velocity can be decreased to zero linearly. Simulation results show the effectiveness and the superiority of the proposed approach.
轨迹规划在无人水面舰艇的自动靠泊中起着重要的作用。本研究提出了基于IA*QB的USV在港停泊轨迹规划方法。首先,通过a *算法得到全局路径;考虑到传统A *算法生成的路径不适合USV在拐角处跟踪,采用拟b样条对路径进行平滑处理。随后,在轨迹中选取间距近似相等的路径点作为路径点。在此基础上,提出了靠泊轨迹末端的二次插值方法。因此,USV的速度可以线性地降低到零。仿真结果表明了该方法的有效性和优越性。
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引用次数: 0
Accurate Localization for Indoor and Outdoor Scenario by GPS and UWB Fusion 基于GPS和UWB融合的室内外场景精确定位
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151723
Jie Luo, Zhengshuai Yin, Linqiu Gui, Xu Yang
Robot positioning system is difficult to locate in large area and complex environment. In order to compensate for the impact of indoor and outdoor scene changes, an indoor and outdoor positioning system based on GPS / UWB is proposed, which can realize seamless positioning between buildings in mixed scenes. In view of this, this paper integrates UWB and GPS information into the Ceres nonlinear optimization framework. In the outdoor scene, GPS is used for positioning. In the indoor scene, UWB is used to improve the accuracy of indoor positioning. In the mixed scene, UWB and GPS are used to improve the positioning accuracy and realize indoor and outdoor seamless positioning.
机器人定位系统在大面积、复杂的环境中定位困难。为了补偿室内外场景变化的影响,提出了一种基于GPS / UWB的室内外定位系统,可实现混合场景下建筑物间的无缝定位。鉴于此,本文将超宽带和GPS信息整合到Ceres非线性优化框架中。在室外场景中,使用GPS进行定位。在室内场景中,采用超宽带技术提高室内定位精度。在混合场景下,利用超宽带和GPS提高定位精度,实现室内外无缝定位。
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引用次数: 0
Contour Tracking Control of Networked Motion Control System Using Improved Equivalent-Input-Disturbance Approach 基于改进等效输入扰动法的网络化运动控制系统轮廓跟踪控制
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151710
Wenjie Lin, Guangpu Huang, Qun Lu, Lifeng Luo, Xiang Wu, Dan Zhang
In this paper, an integrated controller was designed to perform the multi-axis contouring tracking control tasks of networked motion control systems under the influence of external disturbance and measurement noise. To suppress this influence in single-axis tracking, an improved equivalent-input-disturbance (EID)-based single-axis controller is designed to enhance the tracking precision. Then, cross-coupling control (CCC) is utilized for compensation control between each axis, thereby further improving the efficiency and accuracy of contouring tracking control. Finally, comparative experiments are presented to fully illustrate the effectiveness and superiority of the method.
本文设计了一种集成控制器,用于在外部干扰和测量噪声的影响下完成网络化运动控制系统的多轴轮廓跟踪控制任务。为了在单轴跟踪中抑制这种影响,设计了一种改进的基于等效输入干扰(EID)的单轴控制器来提高跟踪精度。然后利用交叉耦合控制(CCC)进行各轴间的补偿控制,进一步提高了轮廓跟踪控制的效率和精度。最后通过对比实验,充分说明了该方法的有效性和优越性。
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引用次数: 0
Automation of Banana Fiber for the Improvement of the Mechanical Properties of Concrete 香蕉纤维自动化加工对混凝土力学性能的改善
Pub Date : 2023-04-21 DOI: 10.1109/ICCAR57134.2023.10151767
Marcelo Miguel De la Cruz-Calderon, Cesar Elmer Taboada-Perez, Axel Anyelo Luque-Saico, Juan Jose Bullon-Rosas
The automation processes in the construction area have been covering the planning and control of obtaining fibers to improve the properties of concrete in an environmentally sustainable way. This work develops the automation for obtaining banana fiber, which will be detailed and controlled by an HMI, to then improve the physical and mechanical properties of concrete in the compressive strength, modulus of rupture, diametral tensile strength. Tia Portal, Factory IO and LabViewsoftware were used for the process of obtaining banana fiber and by means of the Peruvian standard MTC/14, the physical and mechanical properties of the concrete were evaluated. It was obtained that placing 3% of the fiber in a concrete designed for a compressive strength $boldsymbol{text{fc}=210text{kg}/text{cm}^{2}}$, improved the compressive strength to $boldsymbol{mathrm{f}^{prime}c}=boldsymbol{315.5text{kg}/text{cm}^{2}}$, modulus of rupture of $boldsymbol{4{9}.6text{kg}/text{cm}^{2}}$, diametral tensile strength of $boldsymbol{31.4text{kg}/text{cm}^{2}}$, which were evaluated at 28 days.
建筑领域的自动化过程已经涵盖了获取纤维的规划和控制,以环境可持续的方式改善混凝土的性能。本研究开发了香蕉纤维提取的自动化系统,并将通过人机界面进行详细控制,从而提高混凝土的抗压强度、断裂模量、直径抗拉强度等物理力学性能。采用Tia Portal、Factory IO和LabViewsoftware进行香蕉纤维的提取过程,并采用秘鲁标准MTC/14对混凝土的物理力学性能进行了评价。结果表明,在抗压强度为$boldsymbol{text{fc}=210text{kg}/text{cm}^{2}}$的混凝土中加入3%的纤维,可使混凝土抗压强度提高到$boldsymbol{ maththrm {f}^{prime}c}=boldsymbol{315.5text{kg}/text{cm}^{2}}$,断裂模量为$boldsymbol{4{9}。6text{kg}/text{cm}^{2}}$, $boldsymbol{31.4text{kg}/text{cm}^{2}}$的直径抗拉强度,在28天进行评估。
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引用次数: 0
期刊
2023 9th International Conference on Control, Automation and Robotics (ICCAR)
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