{"title":"An integrated framework for obstacle avoidance path planning and tracking of autonomous vehicles considering risk potential fields","authors":"Jinhua Zhang, Weilong Fu","doi":"10.1016/j.robot.2025.105153","DOIUrl":"10.1016/j.robot.2025.105153","url":null,"abstract":"<div><div>Vehicle safety during driving conditions is critical, as collisions significantly contribute to traffic accidents and road congestion. This paper proposes an integrated framework combining a risk potential field and dual-layer model predictive control (MPC) for autonomous obstacle avoidance path planning and tracking. First, environmental risks are modeled through potential fields representing road boundaries, target attractions, and obstacle repulsions. Then, the upper-layer nonlinear MPC (NMPC)incorporates these potential field constraints along with vehicle dynamics to generate feasible path in real-time. Subsequently, the planned path are passed to the lower-layer MPC for accurate path tracking control. Simulation tests on the MATLAB/CarSim co-simulation platform under representative driving scenarios demonstrate that the proposed approach effectively achieves safe autonomous obstacle avoidance and stable control at high speeds,reducing collision risks and validating the method’s feasibility and effectiveness.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105153"},"PeriodicalIF":5.2,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yangfan Li , Jun Liu , Wenyu Liang , Jin Huat Low , Yadan Zeng , Chen-Hua Yeow , I-Ming Chen , Zhuangjian Liu
{"title":"Intelligent automated gesture planning for reconfigurable soft gripper system in food handling","authors":"Yangfan Li , Jun Liu , Wenyu Liang , Jin Huat Low , Yadan Zeng , Chen-Hua Yeow , I-Ming Chen , Zhuangjian Liu","doi":"10.1016/j.robot.2025.105159","DOIUrl":"10.1016/j.robot.2025.105159","url":null,"abstract":"<div><div>Soft grippers, that can mimic human fingers grasping objects, have emerged as a game-changer in the automated food service industry. Their flexibility and compliance enable them to handle various food items, regardless of size, shape, or stiffness, outperforming their rigid counterparts while maintaining cost-efficiency and greater adaptability. However, the working scenarios for soft grippers are also more complex and unpredictable, leading to a challenge in pre-programming the gesture and trajectory of the system. Current research on soft grippers primarily focuses on their compliance characteristics, which is effective for objects with characteristic features but faces challenges with cut food items. For such cut objects, both vertical friction and compliance play crucial roles in grasping, highlighting the need for a reconfigurable soft gripper system (RSGS) with multiple degrees of freedom actuators. To address these challenges, we introduce an intelligent automated gesture planning strategy for RSGSs with multiple degrees of freedom. Our proposed framework comprises five modules: Feature Engineering, which parameterizes and samples arbitrary polygon cross-sections of food items; Simulation, which automates the creation of numerical models in the design space, run and post-processing of simulation; GraspingFormer, which estimates reaction forces during grasping; AgentVAE, which uses a generative variational autoencoder to sample feasible grasping gestures in latent space; Planner, which identifies the optimized gestures by solving an inverse problem. This strategy can facilitate gesture planning when grasping a target object with a RSGS, to enhance the picking-up success rate. The proposed framework can potentially benefit food-handling-like tasks and expand the use of soft robots in real-world applications.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105159"},"PeriodicalIF":5.2,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Li Ding , Yong Yao , Mingyue Lu , Yangmin Li , Yaoyao Wang
{"title":"Integration of linear extended state observer within proxy-based sliding mode control for a cable-driven aerial manipulator","authors":"Li Ding , Yong Yao , Mingyue Lu , Yangmin Li , Yaoyao Wang","doi":"10.1016/j.robot.2025.105161","DOIUrl":"10.1016/j.robot.2025.105161","url":null,"abstract":"<div><div>Aerial manipulators with active operation capabilities have a wide range of applications, but the design of their high-performance controller will be challenging due to internal uncertainties and external disturbances. This article proposes a novel composite control strategy for a cable-driven aerial manipulator, integrating proxy-based sliding mode control and linear extended state observer technique. In this control structure, proxy-based sliding mode control can modify the behavior of the aerial manipulator in joint space, such as tracking accuracy, system safety, and chattering reduction. Meanwhile, the linear extended state observer can estimate and compensate for the lumped disturbances, which enhances the robustness of the designed controller. The stability and convergence of the proposed controller are proved by the Lyapunov theory. Several simulation results show that our controller outperforms the other two existing controllers in terms of control precision, convergence, and robustness.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105161"},"PeriodicalIF":5.2,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144878984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chengmin Zhou , Xin Lu , Jiapeng Dai , Xiaoxu Liu , Bingding Huang , Pasi Fränti
{"title":"Hybrid of representation learning and reinforcement learning for dynamic and complex robotic motion planning","authors":"Chengmin Zhou , Xin Lu , Jiapeng Dai , Xiaoxu Liu , Bingding Huang , Pasi Fränti","doi":"10.1016/j.robot.2025.105167","DOIUrl":"10.1016/j.robot.2025.105167","url":null,"abstract":"<div><div>Motion planning is the soul of robot decision making. Classical planning algorithms like graph search and reaction-based algorithms face challenges in cases of dense and dynamic obstacles. Deep learning algorithms generate suboptimal one-step predictions that cause many collisions. Reinforcement learning algorithms generate optimal or near-optimal time-sequential predictions. However, they suffer from slow convergence, suboptimal converged results, and unstable training. This paper introduces a hybrid algorithm for robotic motion planning: <em><u>l</u>ong short-term memory</em> (LSTM) and <u>s</u>kip connection for <u>a</u>ttention-based <u>d</u>iscrete <u>s</u>oft <u>a</u>ctor <u>c</u>ritic (LSA-DSAC). First, graph network (relational graph) and attention network (attention weight) interpret the environmental state for the learning of the discrete soft actor critic algorithm. The expressive power of attention network outperforms that of graph in our task by difference analysis of these two representation methods. However, attention based DSAC faces the problem of unstable training (vanishing gradient). Second, the skip connection method is integrated to attention based DSAC to mitigate unstable training and improve convergence speed. Third, LSTM is taken to replace the sum operator of attention weigh and eliminate unstable training by slightly sacrificing convergence speed at early-stage training. Experiments show that LSA-DSAC outperforms the state-of-the-art in training and most evaluations. Physical robots are also implemented and tested in the real world.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105167"},"PeriodicalIF":5.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicolas Souli , Panayiotis Kolios , Georgios Ellinas
{"title":"An enhanced autonomous counter-drone system with jamming and relative positioning capabilities","authors":"Nicolas Souli , Panayiotis Kolios , Georgios Ellinas","doi":"10.1016/j.robot.2025.105160","DOIUrl":"10.1016/j.robot.2025.105160","url":null,"abstract":"<div><div>The rise of unlawful and unauthorized operations of unmanned aerial vehicles (UAVs) has led to the need for versatile counter-drone systems. In this work, an autonomous counter-drone system is developed (denoted as RPS-JS-DNN — relative positioning and simultaneous jamming system with deep neural network learning), where a pursuer drone employs algorithms for detection, tracking, and jamming a rogue drone in real-time. The proposed system incorporates wireless interception capabilities to jam the rogue drone, together with self-positioning for the pursuer drone by employing a relative positioning system methodology based on signals of opportunity fused with inertial measurements. The performance of the proposed system depends on the switching between the jamming and self-localization modules, essentially leading to a jamming duration and positioning accuracy trade-off. The overall objective is the maximization of the jamming module’s operation time, while also increasing the performance of the self-localization module. In the proposed system, a software-defined radio (SDR) is utilized, facilitating jamming and spectrum sweeping capabilities to realize the desired GPS disturbance and self-localization, respectively. A prototype system is developed, implemented, deployed, and tested over extensive field experiments, demonstrating its effectiveness to jam a rogue drone and also achieve relative navigation in a real-world environment under various parameter settings.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105160"},"PeriodicalIF":5.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Swarm self-organized multi-heterogeneous target trapping based on the distribution of agent movement influence","authors":"Hanqiao Huang , Yuchen Zhou , Wei Yin , Bo Zhang","doi":"10.1016/j.robot.2025.105158","DOIUrl":"10.1016/j.robot.2025.105158","url":null,"abstract":"<div><div>In existing swarm-based self-organized trapping algorithms, the majority of studies have concentrated on single-target or homogeneous multi-target scenarios within two-dimensional spaces, with limited attention paid to the spatial trapping of multiple heterogeneous targets in three-dimensional environments. The problem of enabling trapping agents to self-organize through mutual perception to trap multiple dispersed and evasive heterogeneous targets in three-dimensional space presents a novel and challenging research direction. To address this gap, this paper proposes a self-organized swarm trapping approach for multiple heterogeneous targets based on the distribution of agent movement influence. First, evaluation criteria for trapping success are established through the definition of nearest-distance and morphological indices. Then, a single-step movement distribution field is constructed based on the incremental motion of neighboring agents to represent the local movement tendencies of trapping agents. This field is used to infer the trapping requirements of heterogeneous targets and to develop a target selection strategy that integrates target demands, density fields, and inter-target distances. Subsequently, the trapping agents achieve a swarm-level self-organized trap in three-dimensional space through the combined effects of four virtual forces: density regulation, target attraction, inter-agent repulsion, and self-propulsion. The feasibility of the proposed method is demonstrated through both algorithmic analysis and simulation-based validation. Results show that even under conditions with minimal redundancy in the number of trapping agents, the proposed strategy can adaptively select heterogeneous targets and form stable trap configurations with high efficiency.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105158"},"PeriodicalIF":5.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144851960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yonghyun Park , Jeonghyeon Pak , Changjo Kim , Hyoung Il Son
{"title":"3D point cloud-based 6D pose estimation using the pedicel morphological features of fruits and vegetables","authors":"Yonghyun Park , Jeonghyeon Pak , Changjo Kim , Hyoung Il Son","doi":"10.1016/j.robot.2025.105151","DOIUrl":"10.1016/j.robot.2025.105151","url":null,"abstract":"<div><div>This study proposes a method to estimate the 6D pose of pedicels using the morphological features of fruits and vegetables. The pedicel, a critical element connecting fruits to their stems, significantly influences the precision and efficiency of agricultural harvesting robots. The proposed system employs 3D point cloud data obtained from RGB-D cameras, using differences in width and curvature to identify the location and orientation of the pedicel. A lightweight YOLOv8n-seg architecture is employed to detect fruits and vegetables, computing the local curvature to estimate pedicel positions. The experimental evaluations on tomatoes and <em>Cucumis melo</em> (<em>C. melo</em>) demonstrate the capability of the proposed system to handle diverse agricultural environments. For <em>C. melo</em>, the system achieved a precision of 0.927, recall of 0.809 and F1-score of 0.864. For tomatoes, precision and recall were both 0.837, resulting in an F1-score of 0.837. Positional errors along the <span><math><mi>x</mi></math></span>-, <span><math><mi>y</mi></math></span>- and <span><math><mi>z</mi></math></span>-axes averaged 1.34, 3.19 and 4.79 mm , respectively, for the <em>C. melo</em>, with corresponding root mean squared errors of 7.95, 5.46 and 5.13 mm. Orientational errors averaged 2.14°, 1.14°and -1.49°for <span><math><mi>ϕ</mi></math></span>, <span><math><mi>θ</mi></math></span> and <span><math><mi>ψ</mi></math></span>, respectively. Smoothing algorithms, including linear interpolation for translation and spherical linear interpolation for rotation, address positional and orientational instability, further enhancing trajectory precision. The system achieved real-time operation with a processing speed exceeding 20 fps with smoothing, making it suitable for dynamic agricultural tasks. The results highlight the robust performance of the system in accurately identifying and approaching pedicels, even in occluded or clustered conditions.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105151"},"PeriodicalIF":5.2,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mario Rosenfelder , Lea Bold , Hannes Eschmann , Peter Eberhard , Karl Worthmann , Henrik Ebel
{"title":"Data-driven predictive control of nonholonomic robots based on a bilinear Koopman realization: Data does not replace geometry","authors":"Mario Rosenfelder , Lea Bold , Hannes Eschmann , Peter Eberhard , Karl Worthmann , Henrik Ebel","doi":"10.1016/j.robot.2025.105156","DOIUrl":"10.1016/j.robot.2025.105156","url":null,"abstract":"<div><div>Advances in machine learning and the growing trend towards effortless data generation in real-world systems have led to an increasing interest for data-inferred models and data-based control in robotics. It seems appealing to govern robots solely based on data, bypassing the traditional, more elaborate pipeline of system modeling through first-principles and subsequent controller design. One promising data-driven approach is the Extended Dynamic Mode Decomposition (EDMD) for control-affine systems, a system class which contains many vehicles and machines of immense practical importance including, e.g., typical wheeled mobile robots. EDMD can be highly data-efficient, computationally inexpensive, can deal with nonlinear dynamics as prevalent in robotics and mechanics, and has a sound theoretical foundation rooted in Koopman theory. On this background, this present paper examines how EDMD models can be integrated into predictive controllers for nonholonomic mobile robots. In addition to the conventional kinematic mobile robot, we also cover the complete data-driven control pipeline – from data acquisition to control design – when the robot is not treated in terms of first-order kinematics but in a second-order manner, allowing to account for actuator dynamics. Using only real-world measurement data, it is shown in both simulations and hardware experiments that the surrogate models enable high-precision predictive controllers in the studied cases. However, the findings raise significant concerns about purely data-centric approaches that overlook the underlying geometry of nonholonomic systems, showing that, for nonholonomic systems, some geometric insight seems necessary and cannot be easily compensated for with large amounts of data.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105156"},"PeriodicalIF":5.2,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design and motion analysis of a simple screw driven in-pipe inspection robot base on adaptive variable pitch","authors":"Jihua Yin , Xuemei Liu, Maokun Rui, Miao Yu","doi":"10.1016/j.robot.2025.105148","DOIUrl":"10.1016/j.robot.2025.105148","url":null,"abstract":"<div><div>In-pipe inspection robot (IPIR) play an important role in detecting the quality of the inner walls of oil and gas transportation pipelines and urban pipelines. However, due to the complex structure of the pipeline, robot is required to have adaptability. The currently existing screw driven pipeline robot has a fixed pitch, and the robot passively and rigidly pass through pipeline curvature. This article designs a simple adaptive variable pitch pipeline robot. The robot is driven by an electric motor and has simple motion control. The robot consists of a rotor that can adapt to changes in pipeline diameter and a stator with fixed dimensions. The robot adapts through pipeline curvature by continuously adjusting the pitch. The robot is equipped with a wide-angle lens and transmits quality images of the inner wall of the pipeline through Wi-Fi. Through theoretical analysis and model experiments, the robot can smoothly pass through vertical pipes with a diameter of 160 mm and 90-degree pipeline curvature.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105148"},"PeriodicalIF":5.2,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trajectory tracking model predictive control for mobile robot based on deep Koopman operator modeling","authors":"Minan Tang , Yaqi Zhang , Shuyou Yu , Jinping Li , Kunxi Tang","doi":"10.1016/j.robot.2025.105152","DOIUrl":"10.1016/j.robot.2025.105152","url":null,"abstract":"<div><div>Trajectory tracking serves as a pivotal performance metric for mobile robot systems, and is crucial for improving the efficiency of robots. The intricate kinematic and dynamic properties of robot systems pose substantial challenges in achieving accurate modeling and effective control, which remain pressing issues within the current research domain. This study focuses on wheeled mobile robot, relying on the deep Koopman operator theory, combined with the extended state observer (ESO) and the adaptive predictive time domain self-triggered model predictive control (APST-MPC) method, to propose a data-driven solution for the trajectory tracking control issue of wheeled mobile robot under uncertain model parameters. Firstly, the dynamic model of the mobile robot is constructed by the deep Koopman operator method. Secondly, to counteract operational disturbances encountered by the robot, an ESO is designed for disturbance estimation and subsequent compensation within the controller. Thirdly, to reduce the computational load, APST-MPC is employed to enhance the trajectory tracking control of wheeled mobile robot. Ultimately, the efficacy of the proposed trajectory tracking controller is confirmed through simulation experiments. The simulation outcomes confirm the deep Koopman operator theory’s efficacy in establishing a robot model with considerable accuracy, the tracking error of the robot is reduced by 46.03% and the total number of triggering times of the system is reduced by more than 59.8% by the APST-MPC controller based on ESO compared with the MPC controller.</div></div>","PeriodicalId":49592,"journal":{"name":"Robotics and Autonomous Systems","volume":"194 ","pages":"Article 105152"},"PeriodicalIF":5.2,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}