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

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A CSTR State Observer Based on Residual Neural Network 基于残差神经网络的CSTR状态观测器
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053924
Shi Liu, Tehuan Chen, Chao Xu
Continuous stirred tank reactor (CSTR) is one of the most common industrial equipment in petroleum and chemical industry, and is widely used in regrouping, fermentation engineering and additive preparation. In general, CSTR is used to prepare a fixed concentration of the output product. Accurate and fast monitoring of the changes in the state quantities of the CSTR chemical reaction process becomes the most important aspect before implementing excellent control. This paper presents a neural network observer with a residual network as the core component. In addition, the operations of the neural network are also matrixed to isolate the nonlinearities as much as possible. Finally we conduct numerical experiments in MATLAB R2018b based on SIMULINK framework to verify the feasibility of our strategy.
连续搅拌槽式反应器(CSTR)是石油、化工等行业最常用的工业设备之一,广泛应用于重组、发酵工程和添加剂制备等领域。通常,CSTR用于制备固定浓度的输出产物。准确、快速地监测CSTR化学反应过程状态量的变化,成为实施优良控制的重要方面。提出了一种以残差网络为核心的神经网络观测器。此外,神经网络的运算也是矩阵化的,以尽可能地隔离非线性。最后基于SIMULINK框架在MATLAB R2018b中进行了数值实验,验证了策略的可行性。
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引用次数: 1
A Perched Landing Control Method Based on Incremental Nonlinear Dynamic Inverse 基于增量非线性动态逆的悬架着陆控制方法
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053864
Yansui Song, Shuai Liang, Erzhuo Niu, Bin Xu
This paper investigates the trajectory optimization and tracking control for the perch maneuver of a fixed-wing unmanned aerial vehicle (UAV). An important aspect of the perch maneuver is that it provides a fast landing for UAVs on fixed points, which could be useful to solve the problem of landing dornes on warship or in tight areas. Optimal trajectory optimization is one of the main concerns of the technology, which is optimised for the shortest trajectory length and minimal energy consumption of the actuator in this paper. In addition, high-precision trajectory tracking control is required, but it is difficult due to the contradiction between variable model parameters and high-precision trajectory tracking control at high angles of attack flight. Toward this end, we developed a cascade incremental nonlinear dynamic inverse (INDI) controller which has a great robustness to the model uncertainties. As a result of simulation, it is verified that the INDI controller can maintain high trajectory tracking accuracy even at a large model deviation, and that it has a better control performance than a linear quadratic controller.
研究了固定翼无人机悬空机动的轨迹优化与跟踪控制问题。栖点机动的一个重要方面是为无人机在定点上提供快速着陆,这可能有助于解决在军舰上或在狭窄区域着陆的问题。最优轨迹优化是该技术的主要研究方向之一,本文以轨迹长度最短、执行器能耗最小为目标进行了优化。此外,需要高精度的弹道跟踪控制,但在大攻角飞行中,由于变模型参数与高精度轨迹跟踪控制之间的矛盾,很难实现。为此,我们开发了一种对模型不确定性具有较强鲁棒性的级联增量非线性动态逆(INDI)控制器。仿真结果验证了INDI控制器在模型偏差较大的情况下仍能保持较高的轨迹跟踪精度,具有比线性二次型控制器更好的控制性能。
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引用次数: 2
Optimization of Two-end Access Platform Automated Warehouse Storage Allocation 双端接入平台仓库自动配库优化
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053853
Qingyun Wang, Li Yan, Zhenfeng Cui
The main technical challenges in the operation of automated warehouses with two-end access platforms are related to low operational efficiency and racks instability. This paper proposed a modified mathematical model with the optimization objectives of improving the handling efficiency of the stacker crane, reducing the center of gravity of the goods and approaching the quality of the goods in the same aisle. Meanwhile, an improved genetic algorithm based on cosine adaptive is used to optimize the objective function. The findings demonstrate that the developed mathematical model can successfully optimize the warehouse level and that the improved genetic algorithm is more effective than the conventional adaptive algorithm at resolving the allocation issue in the double-access automated warehouse.
具有两端存取平台的自动化仓库运行的主要技术挑战是操作效率低和货架不稳定。本文提出了一种改进的数学模型,其优化目标是提高堆垛机的装卸效率,降低货物的重心,接近同一通道的货物质量。同时,采用基于余弦自适应的改进遗传算法对目标函数进行优化。研究结果表明,所建立的数学模型能够成功地优化仓库层,改进的遗传算法比传统的自适应算法更有效地解决双通道自动化仓库的分配问题。
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引用次数: 0
Innovative Discounted Optimal Control Design via Offline and Online Formulations for Affine Systems 基于离线和在线仿射系统公式的创新贴现最优控制设计
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053888
H. Huang, Ding Wang, Junlong Wu, Lingzhi Hu
This paper develops a novel value iteration (VI) scheme and an online VI algorithm, to address the discounted optimal control problems of affine discrete-time nonlinear systems. First, we provide the derivation of the novel VI. Second, we analyze the convergence and monotonicity of the iterative value function sequence, as well as the admissibility of the iterative control. Third, based on the theory of the attraction domain and the novel VI scheme, an online VI algorithm is proposed to implement the stability analysis of the controlled system. It is worth noting that the current control during the online control stage is determined by the location of the current state. Finally, a simulation example is involved to demonstrate the performance of the developed algorithms.
针对仿射离散非线性系统的贴现最优控制问题,提出了一种新的值迭代(VI)格式和在线VI算法。首先,我们给出了新的VI的推导。其次,我们分析了迭代值函数序列的收敛性和单调性,以及迭代控制的可容许性。第三,基于吸引域理论和新颖的VI方案,提出了一种在线VI算法来实现被控系统的稳定性分析。值得注意的是,在线控制阶段的当前控制是由当前状态的位置决定的。最后,通过仿真实例验证了所开发算法的性能。
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引用次数: 0
Secure Consensus of Stochastic Multi-agent Systems Subject to Deception Attacks via Impulsive Control 基于脉冲控制的欺骗攻击下随机多智能体系统的安全一致性
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053932
Jiawei Zhuang, Shiguo Peng, Yonghua Wang
This article addresses the secure leader-following consensus (SLFC) problem of nonlinear stochastic multi-agent systems, which suffer from randomly occurring uncertainties, stochastic disturbances and deception attacks. As a typical type of deception attacks, randomly occurring stealthy false data-injection (FDI) attacks imply that sensor-to-controller channels are probably injected with false signals by adversaries intending to damage consensus. The malicious attacker's behavior can be measured by the Bernoulli distribution variable. By jointly employing the Lyapunov function, the linear matrix inequality method and the definition of average impulsive interval, several sufficient conditions with less conservative are derived, which means that impulsive control scheme can ensure the achievement of SLFC within a given error bound. Finally, one simple simulation example is reported to verify the reliability and effectiveness of our developed results.
本文研究了具有随机不确定性、随机干扰和欺骗攻击的非线性随机多智能体系统的安全领导-跟随共识问题。作为一种典型的欺骗攻击类型,随机发生的隐形虚假数据注入(FDI)攻击意味着传感器到控制器的通道可能被意图破坏共识的对手注入虚假信号。恶意攻击者的行为可以用伯努利分布变量来衡量。结合Lyapunov函数、线性矩阵不等式方法和平均脉冲区间的定义,导出了几个保守性较小的充分条件,表明脉冲控制方案可以保证在给定误差范围内实现SLFC。最后,通过一个简单的仿真实例,验证了所得结果的可靠性和有效性。
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引用次数: 0
Research on Surface Defect Detection of Aluminum Based on Improved Cascade R-CNN 基于改进级联R-CNN的铝表面缺陷检测研究
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053881
Yuge Xu, Zixing Guo, Xie Zhang, Chuanlong Lv
Aluminum profiles are widely used in many industries with good characteristics. Surface defects of aluminum profiles will affect the quality, reliability and safety of products. In recent years, deep learning has been applied in aluminum profile surface defect detection. However, there are still some problems unsolved. The tiny and narrow defects are easily ignored in feature extraction. The length-width ratio of different aluminum surface defects varies widely, but the fixed anchor boxes in traditional deep learning algorithms will easily miss defects. Due to the lack of training on background images, some backgrounds are easily misidentified as defects. To address these problems, a novel Cascade R-CNN network with deformable convolution, guided anchoring and sample augmentation (GAE-Cascade R-CNN model) is proposed. The deformable convolution enhances the feature extraction ability of the network. The guided anchoring reduces the missed detection by automatically generating anchors to match narrow defects. The sample augmentation effectively reduces missed defect detection by training a large number of background images. The experimental results show that the proposed GAE-Cascade R-CNN model can achieve accuracy of 98.85% for identification and mean average precision (mAP) of 80.55% for surface defect detection of aluminum profiles. The performance of the proposed network outperforms other deep learning methods in terms of both missed detection rate and false detection rate.
铝型材具有良好的特性,广泛应用于许多行业。铝型材表面缺陷会影响产品的质量、可靠性和安全性。近年来,深度学习在铝型材表面缺陷检测中得到了广泛的应用。然而,仍有一些问题没有解决。在特征提取中,细小的缺陷容易被忽略。不同铝表面缺陷的长宽比差异很大,但传统深度学习算法中的固定锚盒容易遗漏缺陷。由于缺乏对背景图像的训练,一些背景很容易被误认为是缺陷。为了解决这些问题,提出了一种具有可变形卷积、导向锚定和样本增强的新型级联R-CNN网络(GAE-Cascade R-CNN模型)。可变形卷积增强了网络的特征提取能力。引导锚定通过自动生成锚点来匹配窄缺陷,从而减少了漏检。该方法通过训练大量的背景图像,有效地减少了缺陷检测的缺失。实验结果表明,本文提出的GAE-Cascade R-CNN模型对铝型材表面缺陷的识别精度达到98.85%,平均平均精度(mAP)达到80.55%。在漏检率和误检率方面,该网络的性能优于其他深度学习方法。
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引用次数: 0
Model Following Adaptive Control of Complex Dynamical Networks with the Adaptive Coupling 具有自适应耦合的复杂动态网络自适应控制模型
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053849
Xiaoxiao Li, Yinhe Wang, Shengping Li
In this research, the model following adaptive control problem for the complex dynamical networks with adaptive coupling is investigated. Firstly, from the large-scale system perspective, the complex dynamical networks studied in this paper is composed of many nodes coupled with each other, where each node is a dynamic basic unit with detailed content, which is modeled by the vector differential equation. Next, based on the Lyapunov stability theory, an appropriate adaptive control scheme and the adaptive coupling are designed for the controller plant, so that the controlled plant can asymptotically track its model following target. Furthermore, each node has a different model following target, which is actually achieve multi-target tracking control. Finally, numerical simulation is given to verify the effectiveness and correctness of the control scheme proposed in this paper.
研究了具有自适应耦合的复杂动态网络的自适应控制问题。首先,从大尺度系统的角度出发,本文研究的复杂动态网络由许多节点相互耦合组成,每个节点是一个具有详细内容的动态基本单元,用矢量微分方程对其进行建模。其次,基于Lyapunov稳定性理论,为被控对象设计合适的自适应控制方案和自适应耦合,使被控对象能够渐近跟踪其模型跟踪目标。此外,每个节点都有不同的模型跟踪目标,实际上实现了多目标跟踪控制。最后通过数值仿真验证了所提控制方案的有效性和正确性。
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引用次数: 0
Coupling Modeling Analysis of Synchronous Direct-Drive Gantry Laser Cutting Stage with Heavy-Load 重载同步直驱龙门激光切割工作台耦合建模分析
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053859
Hanjun Xie, Qin-ruo Wang
Aiming at the dynamic coupling problem of the dual-drive motors caused by the position change of heavy-load working head on gantry stage, this paper establishes an accurate electromechanical mathematical model for rigid-flexible coupling characteristics of the platform based on first principles. The model includes the crossbeam's linear motion and rotational motion of the non-constant moment of inertia ${J}$, and the cross-coupling force between the dual drive motors is quantified by defining the virtual centroid of the crossbeam. Finally, the effectiveness of the model is verified by the frequency response experiment of a actual system.
针对龙门平台上重载工作头位置变化引起的双驱动电机动态耦合问题,基于第一性原理建立了平台刚柔耦合特性的精确机电数学模型。该模型包含了横梁的直线运动和非恒定转动惯量${J}$的旋转运动,并通过定义横梁的虚拟质心来量化双驱动电机之间的交叉耦合力。最后,通过实际系统的频响实验验证了该模型的有效性。
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引用次数: 0
Application of Small Animals Control in Substation Based on GBDT and LR Fusion Algorithm 基于GBDT和LR融合算法的变电站小动物控制应用
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053897
Zhaofeng Chen
Animals control is an important task for the safe operation of substations. Aiming at the problems existing in the control of small animals, with the superior prediction ability of machine learning, a prediction model of small animals hazard grade is proposed, which combines gradient boosting decision (GBDT) and logistic regression (LR) algorithm. The model combined substation operation and maintenance data with local meteorological data, performs features screening by calculating the variance value, and achieves classes balance by using sampling technology. And finally the model achieves the prediction of small animals hazard grade in substation. By using different data sets and not using GBDT algorithm to train the model, the prediction results are compared and analyzed. The proposed model is better in all prediction performance indicators, which verifies the validity of the method.
动物控制是变电站安全运行的一项重要任务。针对小动物控制中存在的问题,利用机器学习优越的预测能力,提出了一种结合梯度增强决策(GBDT)和逻辑回归(LR)算法的小动物危害等级预测模型。该模型将变电站运维数据与当地气象数据相结合,通过计算方差值进行特征筛选,并利用抽样技术实现类平衡。最后,该模型实现了变电站小动物危害等级的预测。通过使用不同的数据集,不使用GBDT算法训练模型,对预测结果进行比较分析。所提模型在各预测性能指标上均较好,验证了该方法的有效性。
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引用次数: 0
Stochastic Linear Quadratic Game for Discrete-time Systems Based-on Adaptive Dynamic Programming 基于自适应动态规划的离散系统随机线性二次对策
Pub Date : 2022-12-02 DOI: 10.1109/ICCR55715.2022.10053887
Shibo Na, Ruizhuo Song
In this paper, we proposed an adaptive dynamic programming (ADP) algorithm for discrete time stochastic linear quadratic game without system dynamics. Firstly, we described the problem and converted it into a deterministic form. Then, we solved the Bellman equation to obtain the control gain matrix and disturbance gain matrix when the system dynamics were known. After that, we implemented the ADP algorithm with unknown system through neural networks. Model network, action network, disturbance network and critic network were used to approximate the system model, control gain matrix, disturbance gain matrix and value function respectively. Finally, a simulation example was given to verify the effectiveness of the algorithm.
针对无系统动力学的离散时间随机线性二次对策,提出了一种自适应动态规划(ADP)算法。首先对问题进行描述,并将其转化为确定性形式。然后,在系统动力学已知的情况下,通过求解Bellman方程得到控制增益矩阵和扰动增益矩阵。在此基础上,通过神经网络实现了未知系统的ADP算法。采用模型网络、动作网络、干扰网络和批评家网络分别逼近系统模型、控制增益矩阵、干扰增益矩阵和值函数。最后通过仿真算例验证了算法的有效性。
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引用次数: 0
期刊
2022 4th International Conference on Control and Robotics (ICCR)
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