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2022 4th International Conference on Control and Robotics (ICCR)最新文献

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Research on Attitude Active Disturbance Rejection Control for Miniature Unmanned Helicopter 小型无人直升机姿态自抗扰控制研究
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053873
Xinfan Yin, Hongxu Ma, Honglei An, Liang Wang
In this paper, the X-Cell 60 SE miniature unmanned helicopter is taken as the research object. Firstly, its full nonlinear flight dynamics model is established by Newton Euler method. On this basis, the model is trimmed for the basic state of hovering, and the control quantity and state quantity in hovering state are obtained. Then, the nonlinear model is analytically linearized according to the trimmed conditions of the hovering state, and the linearized simulation model in the hovering state is obtained. The active disturbance rejection controller is designed for the attitude control loop, and the numerical simulation is carried out in Matlab/Simulink simulation environment. The simulation results show that the designed active disturbance rejection controller can effectively stabilize the attitude motion of miniature unmanned helicopter and achieve reliable attitude stabilization control, and the control performance is significantly better than $Hinfty$ robust controller, which can meet the attitude control requirements of miniature unmanned helicopter.
本文以X-Cell 60se微型无人直升机为研究对象。首先,利用牛顿-欧拉法建立了其全非线性飞行动力学模型;在此基础上,对模型进行悬停基本状态的裁剪,得到悬停状态下的控制量和状态量。然后,根据悬停状态的裁剪条件对非线性模型进行解析线性化,得到悬停状态下的线性化仿真模型。针对姿态控制回路设计了自抗扰控制器,并在Matlab/Simulink仿真环境下进行了数值仿真。仿真结果表明,所设计的自抗扰控制器能够有效地稳定微型无人直升机的姿态运动,实现可靠的姿态稳定控制,控制性能明显优于$Hinfty$鲁棒控制器,能够满足微型无人直升机的姿态控制要求。
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引用次数: 0
Research on Multi-stage Closed-loop Control Strategy Based on Electromechanical Brake System 基于机电制动系统的多级闭环控制策略研究
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053916
Yifeng Zhu, Bo Yang, Lin Xu
In order to meet the dynamic and stable performance of the braking process in the electromechanical braking system, the relationship between the current threshold and the clamping force is selected to identify the critical point in the braking process, and the staged closed-loop control strategy is designed accordingly. At the same time, for the pressure loop of clamping force control in the braking process, the control strategy adopts fuzzy PID control. Finally, the electronic mechanical brake system simulation platform is built in the offline environment of MATLAB/Simulink. The simulation results prove that the control strategy in this paper can accurately identify the critical point in the braking process and stably follow the control objectives of each stage. Compared with the PID control, the fuzzy PID control algorithm designed in this paper improves the response speed and control quality of the target braking force within a certain range for the pressure loop which directly affects the clamping force control effect.
为了满足机电制动系统制动过程的动态稳定性能,选择电流阈值与夹紧力之间的关系,识别制动过程中的临界点,并据此设计分段闭环控制策略。同时,对于制动过程中夹紧力控制的压力回路,控制策略采用模糊PID控制。最后,在MATLAB/Simulink的离线环境下搭建了电子机械制动系统仿真平台。仿真结果表明,本文所提出的控制策略能够准确识别制动过程中的临界点,并稳定地遵循各阶段的控制目标。与PID控制相比,本文设计的模糊PID控制算法对于直接影响夹紧力控制效果的压力回路,在一定范围内提高了目标制动力的响应速度和控制质量。
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引用次数: 0
Weak Weld-target Recognition Based on Prior Knowledge 基于先验知识的弱焊接目标识别
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053910
Hongbin Ma, Yi Xu, Jie Liu
The welding technology is widely used in many manufacturing industries. The welding seams are weak targets due to unstable welding quality and the various kinds of noises. This article proposed a new method of weak-target recognition focus on welding seams, which helps to automatically track the welding seam in complex enviroment. We first relabel the data with “outer boxes” and “slopes” on the welding seam. Then we design a new recognition framework based on prior knowledge and YOLOv5 recognition algorithm. We trained weld images in many kinds of enviroment and compared the results. It shown that our method exceed the tradional method on both precision and recall.
焊接技术广泛应用于许多制造业。由于焊接质量不稳定和各种噪声的存在,焊缝是弱目标。提出了一种以焊缝为中心的弱目标识别新方法,有助于在复杂环境下对焊缝进行自动跟踪。我们首先在焊缝上用“外框”和“斜面”重新标记数据。然后设计了一种基于先验知识和YOLOv5识别算法的识别框架。对多种环境下的焊缝图像进行了训练,并对结果进行了比较。结果表明,该方法在查准率和查全率上均优于传统方法。
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引用次数: 0
Multi-UUV Detection Array Optimization Based on Ant Colony Algorithm 基于蚁群算法的多紫外探测阵列优化
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053915
Mingwei Liu, Lu Liu, Lichuan Zhang, Guang Pan, Peidong Dang, Yi Chen
With the increasing stealth performance of underwater detection targets and more complex detection tasks, a single underwater unmanned underwater vehicle (UUV) has been already unable to meet the current mission requirements. Therefore, in recent years, multi-UUV cooperative detection has been widely used in certain task. To address the problem that the change of multiple UUV formations in the detection task will have a large impact on the detection effectiveness, a multi-UUV formation optimization model is proposed. Then, the formation optimization problem of multi-UUV cooperative detection is solved through the ant colony algorithm. The results show that the algorithm in this paper is more robust than the traditional algorithm. and the ability to globally search for optimal solutions.
随着水下探测目标隐身性能的提高和探测任务的复杂化,单个水下无人潜航器已经无法满足当前的任务要求。因此,近年来,多紫外协同检测在某些任务中得到了广泛的应用。针对探测任务中多个UUV编队变化对探测效果影响较大的问题,提出了一个多UUV编队优化模型。然后,通过蚁群算法求解多uuv协同检测的队形优化问题。结果表明,本文算法比传统算法具有更强的鲁棒性。以及全局搜索最优解的能力。
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引用次数: 0
An Automated Statistical Evaluation Framework of Rapidly-Exploring Random Tree Frontier Detector for Indoor Space Exploration 一种用于室内空间探测的快速探测随机树边界探测器的自动统计评价框架
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053918
W. Andy, Wen-Yu Cheng Marty, Zhengbin Ni, Xiangnan Zhong
This paper focuses on the design of an automated statistical evaluation framework for mapping generation of Rapidly-Exploring Random Tree (RRT) frontier detectors. By evaluating the run time and distance traveled of the simulated Kobuki robot agent in a Gazebo environment, the designed framework can automatically evaluate the process on a user-defined Gazebo map for a large number of repeated simulations. We also expanded the experiment platform into customized maps with complex layouts and trial schemes. The key formulas and parameters are provided with different trial settings. During the development of this framework, we have added functions that allow the user to choose among the maps we have designed, and the initial positions of the simulated robots for each map at the beginning of each trial. We have also modified the modules developed by Umari et al. so that the RRT frontier detection process can be started automatically with pre-defined exploration area in place. Modules have also been added so that the run time and distance traveled by the simulated robot for each trial can be measured and saved to the respective CSV files for further statistical analysis. We have created additional procedures that ensure the consistency of each trial. The results show that our designed automated evaluation framework is reliable and suitable for use as a fully automated research platform for robot exploration.
研究了一种用于快速探索随机树(RRT)前沿探测器映射生成的自动统计评估框架设计。通过对仿真小木机器人agent在Gazebo环境中的运行时间和行走距离进行评估,设计的框架可以在用户自定义的Gazebo地图上自动评估过程,进行大量的重复模拟。我们还将实验平台扩展为具有复杂布局和试验方案的定制地图。给出了不同试验设置下的关键公式和参数。在这个框架的开发过程中,我们增加了一些功能,允许用户在我们设计的地图中进行选择,并在每次试验开始时为每个地图选择模拟机器人的初始位置。我们还修改了Umari等人开发的模块,使RRT边界探测过程可以在预定义的勘探区域内自动启动。还添加了一些模块,可以测量模拟机器人每次试验的运行时间和行进距离,并将其保存到相应的CSV文件中,以便进行进一步的统计分析。我们制定了额外的程序,以确保每次试验的一致性。结果表明,所设计的自动化评估框架是可靠的,适合作为机器人探索的全自动研究平台。
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引用次数: 1
Steering Wheel Rotation Angle Prediction Based on VGG-16 and Data Augmentation 基于VGG-16的方向盘转角预测及数据增强
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053867
Xin Song, Huili Cao, Haitao You
The deep learning technology based on convolutional neural network in the field of automatic driving makes automatic driving have extremely high practical application value and scientific research value. With the continuous improvement of network real-time and edge computing, autonomous driving technology will continue to show its powerful strength to liberate people's hands in the process of driving. Therefore, controlling the direction and angle of the steering wheel rotation according to the picture captured by the camera in front of the car is the core problem needs to be solved by automatic driving. We design and implement a steering wheel rotation angle prediction system for autonomous driving. By collecting road information on the simulator, data balance analysis is carried out on the collected road picture information. We designed related algorithms such as horizontal flipping of data balance processing, angle processing of bilaterally collected pictures, and random elimination of 0-angle information. For scenarios such as the correlation conditions in the prediction process of the actual vehicle rotation angle, we have done a complete and scientific data augmentation experiment, and trained an excellent prediction network model. From the results of the road test, it can make excellent performance in multi-scenario and complex road conditions, and can more accurately predict the trajectory and direction of the vehicle to be driven. It laies a certain theoretical foundation and accumulated practical experience for the development of autonomous vehicles under smart transportation.
基于卷积神经网络的深度学习技术在自动驾驶领域的应用,使得自动驾驶具有极高的实际应用价值和科研价值。随着网络实时性和边缘计算的不断提高,自动驾驶技术将继续展示其强大的力量,在驾驶过程中解放人们的双手。因此,根据车前方摄像头拍摄到的画面,控制方向盘转动的方向和角度,是自动驾驶需要解决的核心问题。设计并实现了一种用于自动驾驶的方向盘转角预测系统。通过在模拟器上采集道路信息,对采集到的道路图像信息进行数据平衡分析。我们设计了数据平衡处理的水平翻转、双边采集图片的角度处理、0角度信息的随机消除等相关算法。对于车辆实际转角预测过程中的相关条件等场景,我们进行了完整、科学的数据增强实验,训练出了优秀的预测网络模型。从路试结果来看,该系统在多场景、复杂路况下均能取得优异的性能,能够更准确地预测待驾驶车辆的行驶轨迹和方向。为智能交通下自动驾驶汽车的发展奠定了一定的理论基础和积累的实践经验。
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引用次数: 0
The Influence Analysis of Stray Current on Urban Power Grid Substation Underlocal Damage of Rail Ground Insulation 杂散电流对城市电网变电站轨道地绝缘局部损坏的影响分析
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053901
Jianlei Zhang, Haiyang Gao, He Zhong, Mingwei Tang, Yujun Guo, Song Xiao, Guoqiang Gao
With the increase of the operation time of urban rail transit system, the insulation between the track and the earth is partially damaged due to environmental, stress damage and other factors, resulting in increased stray current leakage. The stray current flowing into the ground will flow into the neutral point of the transformer in the surrounding substation, which will have an impact on the urban power grid substation. The simulation model is used to analyze the impact of the location and number of rail ground insulation damage points on the ground potential and the impact of voltage and current density between substations with electrical connection relationship after rail ground insulation damage, providing support for rail ground insulation damage protection.
随着城市轨道交通系统运行时间的增加,轨道与地面之间的绝缘由于环境、应力破坏等因素而部分损坏,导致杂散电流泄漏增大。流入地面的杂散电流会流入周围变电站的变压器中性点,对城市电网变电站产生影响。利用仿真模型分析钢轨地绝缘损坏后,钢轨地绝缘损坏点的位置和数量对地电位的影响以及具有电气连接关系的变电站间电压和电流密度的影响,为钢轨地绝缘损坏防护提供支持。
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引用次数: 0
A Deep Transformer Model-Based Analysis of Fish School Starvation Degree in Marine Farming Vessels 基于深度变压器模型的海洋养殖船舶鱼群饥饿程度分析
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053891
Kaijian Zheng, Renyou Yang, Rifu Li, Liang Yang, Hao Qin, Mingyuan Sun
Studying the physiological behavior of fish school starvation and dynamically adjusting the feeding scheme based on the starvation features of fish school can help promote the unmanned and intelligent process of offshore aquaculture. The current starvation algorithms trained based on breeding data from terrestrial pools and ponds are largely limited by the differences in environmental conditions and are therefore difficult to be applied to real marine aquaculture environments. In this paper, a deep attention model based on a dual-stream network (DADSN) was used to analyze the starvation behaviors of fish school and to grade them into five starvation levels. First, we collected the golden pompano aquaculture videos on a farming vessel and extracted optical flow images from the original videos to create a dual-stream dataset for golden pompano starvation analysis. Next, considering the characteristics of camera imaging in the marine environment, we used DADSN to extract fish behavioral features in the spatial domain and the optical domain, respectively, and fused the heterogeneous features by LSTM to enrich behavioral information without additional equipment. Finally, we conducted detailed control tests and qualitative and quantitative analyses, and the model obtained an accuracy of 83.43%, which is significantly higher than other mainstream models. Further tests were conducted on farmed workboats to confirm that the model can be applied to the vessel aquaculture environment of golden pompano.
研究鱼群饥饿的生理行为,根据鱼群饥饿的特点动态调整摄食方案,有助于推动近海水产养殖的无人化、智能化进程。目前基于陆地水池和池塘养殖数据训练的饥饿算法在很大程度上受到环境条件差异的限制,因此难以应用于真实的海洋水产养殖环境。本文采用基于双流网络的深度注意模型(DADSN)对鱼群的饥饿行为进行了分析,并将其划分为5个饥饿等级。首先,我们收集了养殖船上的金鲳鱼养殖视频,并从原始视频中提取光流图像,创建双流数据集用于金鲳鱼饥饿分析。其次,考虑到海洋环境中相机成像的特点,利用DADSN分别提取空间域和光学域的鱼类行为特征,并利用LSTM融合异质特征,在不增加设备的情况下丰富行为信息。最后,我们进行了详细的控制检验和定性定量分析,模型的准确率达到83.43%,明显高于其他主流模型。在养殖的工作船上进行了进一步的试验,以证实该模型可以应用于金鲳鱼的船舶养殖环境。
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引用次数: 1
Mean-Square Bipartite Consensus of Multi-agent Systems with Saturation Constraint via Impulsive Control 含饱和约束的多智能体系统的均方二部一致性
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053923
Yujia Huang, Shiguo Peng, Yang Liu
To avoid the actuator saturation caused by communication limitation in practical applications, based on the impulsive control strategy constrained by saturation characteristics, in this paper, we study the mean-square bipartite consensus for a class of leader-following multi-agent systems with randomly occurring uncertainties and randomly occurring nonlinearities. By using the Lyapunov stability theory, convex hull theory and algebraic graph theory, some sufficiency conditions for multi-agent systems to achieve mean-square bipartite consensus are given. Finally, a numerical simulation is provided to verify the effectiveness results.
为了避免在实际应用中由于通信限制导致的执行器饱和,本文基于饱和特性约束的脉冲控制策略,研究了一类具有随机不确定性和随机非线性的先导-跟随多智能体系统的均方二部一致性。利用李雅普诺夫稳定性理论、凸包理论和代数图理论,给出了多智能体系统达到均方二部一致的充分条件。最后,通过数值仿真验证了算法的有效性。
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引用次数: 0
Vision Technology in Underwater: Applications, Challenges and Perspectives 水下视觉技术:应用、挑战与展望
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053896
Yiyang Li, K. Sun, Zekai Han
Vision technology is growing vigorously, but underwater vision remains challenges and problems, which is a field with application value and development prospects. The visual information obtained underwater is often color-biased and blurred, and it is highly susceptible to the influence of the surrounding environment and its stability cannot be controlled. Therefore, the current research and applications of vision technologies in underwater vision provide ways to solve the described problems, including image processing, target detection and recognition, localization and tracking technologies. The purpose of this review is to summarize the development of underwater vision technology and the results achieved. The mainstream underwater vision technologies are classified according to the different theories or algorithms used, and the current new research progress in each field is introduced in detail. By summarizing and analyzing the above research results, the application of each key technology of underwater vision is sorted out, and its further development direction is foreseen.
视觉技术正在蓬勃发展,但水下视觉仍然存在挑战和问题,是一个具有应用价值和发展前景的领域。在水下获得的视觉信息往往存在色彩偏差和模糊,极易受到周围环境的影响,其稳定性无法控制。因此,目前在水下视觉领域的视觉技术研究与应用为解决上述问题提供了途径,包括图像处理、目标检测与识别、定位与跟踪技术等。本文综述了水下视觉技术的发展和取得的成果。根据不同的理论或算法对主流的水下视觉技术进行了分类,并详细介绍了当前各个领域的最新研究进展。通过对上述研究成果的总结和分析,对水下视觉各关键技术的应用进行了梳理,并对其进一步发展方向进行了展望。
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引用次数: 0
期刊
2022 4th International Conference on Control and Robotics (ICCR)
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