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Distributed collaborative complete coverage path planning based on hybrid strategy 被引量:2
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作者 ZHANG Jia DU Xin +1 位作者 DONG Qichen XIN Bin 《Journal of Systems Engineering and Electronics》 SCIE CSCD 2024年第2期463-472,共10页
Collaborative coverage path planning(CCPP) refers to obtaining the shortest paths passing over all places except obstacles in a certain area or space. A multi-unmanned aerial vehicle(UAV) collaborative CCPP algorithm ... Collaborative coverage path planning(CCPP) refers to obtaining the shortest paths passing over all places except obstacles in a certain area or space. A multi-unmanned aerial vehicle(UAV) collaborative CCPP algorithm is proposed for the urban rescue search or military search in outdoor environment.Due to flexible control of small UAVs, it can be considered that all UAVs fly at the same altitude, that is, they perform search tasks on a two-dimensional plane. Based on the agents’ motion characteristics and environmental information, a mathematical model of CCPP problem is established. The minimum time for UAVs to complete the CCPP is the objective function, and complete coverage constraint, no-fly constraint, collision avoidance constraint, and communication constraint are considered. Four motion strategies and two communication strategies are designed. Then a distributed CCPP algorithm is designed based on hybrid strategies. Simulation results compared with patternbased genetic algorithm(PBGA) and random search method show that the proposed method has stronger real-time performance and better scalability and can complete the complete CCPP task more efficiently and stably. 展开更多
关键词 multi-agent cooperation unmanned aerial vehicles(UAV) distributed algorithm complete coverage path planning(CCPP)
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Complete Coverage Path Planning Based on Improved Area Division
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作者 Lihuan Ma Zhuo Sun Yuan Gao 《World Journal of Engineering and Technology》 2023年第4期965-975,共11页
It is difficult to solve complete coverage path planning directly in the obstructed area. Therefore, in this paper, we propose a method of complete coverage path planning with improved area division. Firstly, the bous... It is difficult to solve complete coverage path planning directly in the obstructed area. Therefore, in this paper, we propose a method of complete coverage path planning with improved area division. Firstly, the boustrophedon cell decomposition method is used to partition the map into sub-regions. The complete coverage paths within each sub-region are obtained by the Boustrophedon back-and-forth motions, and the order of traversal of the sub-regions is then described as a generalised traveling salesman problem with pickup and delivery based on the relative positions of the vertices of each sub-region. An adaptive large neighbourhood algorithm is proposed to quickly obtain solution results in traversal order. The effectiveness of the improved algorithm on traversal cost reduction is verified in this paper through multiple sets of experiments. . 展开更多
关键词 Generalized Traveling Salesman Problem with Pickup and Delivery Com-plete coverage path planning Boustrophedon Cellular Decomposition Adaptive Large-Neighborhood Search Algorithm Mobile Robot
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Deep Reinforcement Learning for Zero-Shot Coverage Path Planning With Mobile Robots
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作者 JoséPedro Carvalho A.Pedro Aguiar 《IEEE/CAA Journal of Automatica Sinica》 2025年第8期1594-1609,共16页
The ability of mobile robots to plan and execute a path is foundational to various path-planning challenges,particularly Coverage Path Planning.While this task has been typically tackled with classical algorithms,thes... The ability of mobile robots to plan and execute a path is foundational to various path-planning challenges,particularly Coverage Path Planning.While this task has been typically tackled with classical algorithms,these often struggle with flexibility and adaptability in unknown environments.On the other hand,recent advances in Reinforcement Learning offer promising approaches,yet a significant gap in the literature remains when it comes to generalization over a large number of parameters.This paper presents a unified,generalized framework for coverage path planning that leverages value-based deep reinforcement learning techniques.The novelty of the framework comes from the design of an observation space that accommodates different map sizes,an action masking scheme that guarantees safety and robustness while also serving as a learning-fromdemonstration technique during training,and a unique reward function that yields value functions that are size-invariant.These are coupled with a curriculum learning-based training strategy and parametric environment randomization,enabling the agent to tackle complete or partial coverage path planning with perfect or incomplete knowledge while generalizing to different map sizes,configurations,sensor payloads,and sub-tasks.Our empirical results show that the algorithm can perform zero-shot learning scenarios at a near-optimal level in environments that follow a similar distribution as during training,outperforming a greedy heuristic by sixfold.Furthermore,in out-of-distribution environments,our method surpasses existing state-of-the-art algorithms in most zero-shot and all few-shot scenarios,paving the way for generalizable and adaptable path-planning algorithms. 展开更多
关键词 Autonomous robots coverage path planning deep reinforcement learning mobile robot partially observable markov decision processes path planning zero-shot generalization
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Enhanced Coverage Path Planning Strategies for UAV Swarms Based on SADQN Algorithm 被引量:1
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作者 Zhuoyan Xie Qi Wang +1 位作者 Bin Kong Shang Gao 《Computers, Materials & Continua》 2025年第8期3013-3027,共15页
In the current era of intelligent technologies,comprehensive and precise regional coverage path planning is critical for tasks such as environmental monitoring,emergency rescue,and agricultural plant protection.Owing ... In the current era of intelligent technologies,comprehensive and precise regional coverage path planning is critical for tasks such as environmental monitoring,emergency rescue,and agricultural plant protection.Owing to their exceptional flexibility and rapid deployment capabilities,unmanned aerial vehicles(UAVs)have emerged as the ideal platforms for accomplishing these tasks.This study proposes a swarm A^(*)-guided Deep Q-Network(SADQN)algorithm to address the coverage path planning(CPP)problem for UAV swarms in complex environments.Firstly,to overcome the dependency of traditional modeling methods on regular terrain environments,this study proposes an improved cellular decomposition method for map discretization.Simultaneously,a distributed UAV swarm system architecture is adopted,which,through the integration of multi-scale maps,addresses the issues of redundant operations and flight conflicts inmulti-UAV cooperative coverage.Secondly,the heuristic mechanism of the A^(*)algorithmis combinedwith full-coverage path planning,and this approach is incorporated at the initial stage ofDeep Q-Network(DQN)algorithm training to provide effective guidance in action selection,thereby accelerating convergence.Additionally,a prioritized experience replay mechanism is introduced to further enhance the coverage performance of the algorithm.To evaluate the efficacy of the proposed algorithm,simulation experiments were conducted in several irregular environments and compared with several popular algorithms.Simulation results show that the SADQNalgorithmoutperforms othermethods,achieving performance comparable to that of the baseline prior algorithm,with an average coverage efficiency exceeding 2.6 and fewer turning maneuvers.In addition,the algorithm demonstrates excellent generalization ability,enabling it to adapt to different environments. 展开更多
关键词 coverage path planning unmanned aerial vehicles swarmintelligence DeepQ-Network A^(%MUL%)algorithm prioritized experience replay
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Multiple fixed-wing UAVs collaborative coverage 3D path planning method for complex areas
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作者 Mengyang Wang Dong Zhang +1 位作者 Chaoyue Li Zhaohua Zhang 《Defence Technology(防务技术)》 2025年第5期197-215,共19页
Complex multi-area collaborative coverage path planning in dynamic environments poses a significant challenge for multi-fixed-wing UAVs(multi-UAV).This study establishes a comprehensive framework that incorporates UAV... Complex multi-area collaborative coverage path planning in dynamic environments poses a significant challenge for multi-fixed-wing UAVs(multi-UAV).This study establishes a comprehensive framework that incorporates UAV capabilities,terrain,complex areas,and mission dynamics.A novel dynamic collaborative path planning algorithm is introduced,designed to ensure complete coverage of designated areas.This algorithm meticulously optimizes the operation,entry,and transition paths for each UAV,while also establishing evaluation metrics to refine coverage sequences for each area.Additionally,a three-dimensional path is computed utilizing an altitude descent method,effectively integrating twodimensional coverage paths with altitude constraints.The efficacy of the proposed approach is validated through digital simulations and mixed-reality semi-physical experiments across a variety of dynamic scenarios,including both single-area and multi-area coverage by multi-UAV.Results show that the coverage paths generated by this method significantly reduce both computation time and path length,providing a reliable solution for dynamic multi-UAV mission planning in semi-physical environments. 展开更多
关键词 Multi-fixed-wing UAVs(multi-UAV) Minimum time cooperative coverage Dynamic complete coverage path planning(DCCPP) Dubins curves Improved dynamic programming algorithm(IDP)
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Energy-Efficient UAVs Coverage Path Planning Approach 被引量:2
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作者 Gamil Ahmed Tarek Sheltami +1 位作者 Ashraf Mahmoud Ansar Yasar 《Computer Modeling in Engineering & Sciences》 SCIE EI 2023年第9期3239-3263,共25页
Unmanned aerial vehicles(UAVs),commonly known as drones,have drawn significant consideration thanks to their agility,mobility,and flexibility features.They play a crucial role in modern reconnaissance,inspection,intel... Unmanned aerial vehicles(UAVs),commonly known as drones,have drawn significant consideration thanks to their agility,mobility,and flexibility features.They play a crucial role in modern reconnaissance,inspection,intelligence,and surveillance missions.Coverage path planning(CPP)which is one of the crucial aspects that determines an intelligent system’s quality seeks an optimal trajectory to fully cover the region of interest(ROI).However,the flight time of the UAV is limited due to a battery limitation and may not cover the whole region,especially in large region.Therefore,energy consumption is one of the most challenging issues that need to be optimized.In this paper,we propose an energy-efficient coverage path planning algorithm to solve the CPP problem.The objective is to generate a collision-free coverage path that minimizes the overall energy consumption and guarantees covering the whole region.To do so,the flight path is optimized and the number of turns is reduced to minimize the energy consumption.The proposed approach first decomposes the ROI into a set of cells depending on a UAV camera footprint.Then,the coverage path planning problem is formulated,where the exact solution is determined using the CPLEX solver.For small-scale problems,the CPLEX shows a better solution in a reasonable time.However,the CPLEX solver fails to generate the solution within a reasonable time for large-scale problems.Thus,to solve the model for large-scale problems,simulated annealing forCPP is developed.The results show that heuristic approaches yield a better solution for large-scale problems within amuch shorter execution time than the CPLEX solver.Finally,we compare the simulated annealing against the greedy algorithm.The results show that simulated annealing outperforms the greedy algorithm in generating better solution quality. 展开更多
关键词 coverage path planning MILP CPLEX solver energy model optimization region of interest area of interest
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Parameter value selection strategy for complete coverage path planning based on the Lüsystem to perform specific types of missions 被引量:1
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作者 Caihong LI Cong LIU +1 位作者 Yong SONG Zhenying LIANG 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2023年第2期231-244,共14页
We propose a novel parameter value selection strategy for the Lüsystem to construct a chaotic robot to accomplish the complete coverage path planning(CCPP)task.The algorithm can meet the requirements of high rand... We propose a novel parameter value selection strategy for the Lüsystem to construct a chaotic robot to accomplish the complete coverage path planning(CCPP)task.The algorithm can meet the requirements of high randomness and coverage rate to perform specific types of missions.First,we roughly determine the value range of the parameter of the Lüsystem to meet the requirement of being a dissipative system.Second,we calculate the Lyapunov exponents to narrow the value range further.Next,we draw the phase planes of the system to approximately judge the topological distribution characteristics of its trajectories.Furthermore,we calculate the Pearson correlation coefficient of the variable for those good ones to judge its random characteristics.Finally,we construct a chaotic robot using variables with the determined parameter values and simulate and test the coverage rate to study the relationship between the coverage rate and the random characteristics of the variables.The above selection strategy gradually narrows the value range of the system parameter according to the randomness requirement of the coverage trajectory.Using the proposed strategy,proper variables can be chosen with a larger Lyapunov exponent to construct a chaotic robot with a higher coverage rate.Another chaotic system,the Lorenz system,is used to verify the feasibility and effectiveness of the designed strategy.The proposed strategy for enhancing the coverage rate of the mobile robot can improve the efficiency of accomplishing CCPP tasks under specific types of missions. 展开更多
关键词 Chaotic mobile robot Lüsystem complete coverage path planning(CCPP) Parameter value selection strategy Lyapunov exponent Pearson correlation coefficient
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Complete coverage path planning for an Arnold system based mobile robot to perform specific types of missions 被引量:7
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作者 Cai-hong LI Chun FANG +2 位作者 Feng-ying WANG Bin XIA Yong SONG 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2019年第11期1530-1542,共13页
We propose a contraction transformation algorithm to plan a complete coverage trajectory for a mobile robot to ac-complish specific types of missions based on the Arnold dynamical system. First, we construct a chaotic... We propose a contraction transformation algorithm to plan a complete coverage trajectory for a mobile robot to ac-complish specific types of missions based on the Arnold dynamical system. First, we construct a chaotic mobile robot by com-bining the variable z of the Arnold equation and the kinematic equation of the robot. Second, we construct the candidate sets including the initial points with a relatively high coverage rate of the constructed mobile robot. Then the trajectory is contracted to the current position of the robot based on the designed contraction transformation strategy, to form a continuous complete cov-erage trajectory to execute the specific types of missions. Compared with the traditional method, the designed algorithm requires no obstacle avoidance to the boundary of the given workplace, possesses a high coverage rate, and keeps the chaotic characteristics of the produced coverage trajectory relatively unchanged, which enables the robot to accomplish special missions with features of completeness, randomness, or unpredictability. 展开更多
关键词 Chaotic mobile robot Arnold dynamical system Contraction transformation complete coverage path planning Candidate set
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Development of Global Geographical Coverage Area for Terrestrial Networks Internetworked with Leo Satellite Network 被引量:1
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作者 V. O. C. Eke A. N. Nzeako 《Communications and Network》 2014年第4期228-242,共15页
Network planning, analysis and design are an iterative process aimed at ensuring that a new network service meets the needs of subscribers and operators. During the initial start-up phase, coverage is the big issue an... Network planning, analysis and design are an iterative process aimed at ensuring that a new network service meets the needs of subscribers and operators. During the initial start-up phase, coverage is the big issue and coverage in telecommunications systems is related to the service area where a bare minimum access in the wireless network is possible. In order to guarantee visibility of at least one satellite above a certain satellite elevation, more satellites are required in the constellation to provide Global network services. Hence, the aim of this paper is to develop wide area network coverage for sparsely distributed earth stations in the world. A hybrid geometrical topology model using spherical coordinate framework was devised to provide wide area network coverage for sparsely distributed earth stations in the world. This topology model ensures Global satellite continuous network coverage for terrestrial networks. A computation of path lengths between any two satellites put in place to provide network services to selected cities in the world was carried out. A consideration of a suitable routing decision mechanism, routing protocols and algorithms were considered in the work while the shortest paths as well as the alternate paths between located nodes were computed. It was observed that a particular satellite with the central angle of 27&deg;can provide services into the diameter of the instantaneous coverage distance of 4081.3 Km which is typical of wide area network coverage. This implies that link-state database routing scheme can be applied, continuous global geographical coverage with minimum span, minimum traffic pattern and latency are guaranteed. Traffic handover rerouting strategies need further research. Also, traffic engineering resources such as channel capacity and bandwidth utilization schemes need to be investigated. Satellite ATM network architecture will benefit and needs further study. 展开更多
关键词 NETWORK planning GLOBAL NETWORK coverage VISIBILITY Angle Link-State Database ORTHOGONAL Route path Dijkstras Algorithm
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Automatic collaborative water surface coverage and cleaning strategy of UAV and USVs
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作者 Tianping Deng Xiaohui Xu +3 位作者 Zeyan Ding Xiao Xiao Ming Zhu Kai Peng 《Digital Communications and Networks》 2025年第2期365-376,共12页
As the problem of surface garbage pollution becomes more serious,it is necessary to improve the efficiency of garbage inspection and picking rather than traditional manual methods.Due to lightness,Unmanned Aerial Vehi... As the problem of surface garbage pollution becomes more serious,it is necessary to improve the efficiency of garbage inspection and picking rather than traditional manual methods.Due to lightness,Unmanned Aerial Vehicles(UAVs)can traverse the entire water surface in a short time through their flight field of view.In addition,Unmanned Surface Vessels(USVs)can provide battery replacement and pick up garbage.In this paper,we innovatively establish a system framework for the collaboration between UAV and USVs,and develop an automatic water cleaning strategy.First,on the basis of the partition principle,we propose a collaborative coverage path algorithm based on UAV off-site takeoff and landing to achieve global inspection.Second,we design a task scheduling and assignment algorithm for USVs to balance the garbage loads based on the particle swarm optimization algorithm.Finally,based on the swarm intelligence algorithm,we also design an autonomous obstacle avoidance path planning algorithm for USVs to realize autonomous navigation and collaborative cleaning.The system can simultaneously perform inspection and clearance tasks under certain constraints.The simulation results show that the proposed algorithms have higher generality and flexibility while effectively improving computational efficiency and reducing actual cleaning costs compared with other schemes. 展开更多
关键词 UAV USVs Collaborative cleaning path planning coverage Autonomous obstacle avoidance
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基于单元分解法与遗传算法的割草机全覆盖路径优化
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作者 黄云 何辉波 +3 位作者 李华英 刘亚伦 刘宗东 彭星宇 《农机化研究》 北大核心 2026年第6期81-88,96,共9页
为解决割草机器人全覆盖路径规划问题,提出了一种基于单元分解法与遗传算法的路径优化方法。通过单元分解法将作业区域划分为无障碍的子单元,以降低路径规划的计算复杂度。针对子单元内部路径规划,设计深度优先搜索(DFS)与蛇形(Serpenti... 为解决割草机器人全覆盖路径规划问题,提出了一种基于单元分解法与遗传算法的路径优化方法。通过单元分解法将作业区域划分为无障碍的子单元,以降低路径规划的计算复杂度。针对子单元内部路径规划,设计深度优先搜索(DFS)与蛇形(Serpentine)覆盖两种策略,并在遗传算法框架下对分区访问顺序和覆盖策略进行优化。为提高路径的平滑性与连接效率,引入改进的双向A*算法,用于连接相邻分区的最短路径。通过适应度函数,结合考虑路径总长度、路径重复点和拐点个数,进一步提升了全覆盖效率。为验证算法的有效性,设计两组仿真试验:第1组比较了传统A*结合遗传算法与改进双向A*结合遗传算法的路径优化效果,结果表明:改进算法的路径重复点减少11.73%,路径总长度由8683.02 m缩短至8676.52 m,拐点数由332减少至327,提高了规划性能;第2组针对全覆盖路径规划问题,将本文算法与传统螺旋式算法和A*全覆盖算法进行对比,结果表明:路径长度分别缩短22.80%和23.76%,路径重复点数减少93.46%和94.52%,拐点数减少49.30%和68.71%。此外,迭代过程中路径长度逐渐稳定,验证了本文算法在优化路径冗余和搜索最优解方面的有效性。 展开更多
关键词 A%MUL%
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基于新型贪心-D^(*)算法的无人机全覆盖路径规划
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作者 周映江 谢明慧 +2 位作者 蒋国平 徐丰羽 高辉 《南京邮电大学学报(自然科学版)》 北大核心 2026年第1期111-123,共13页
针对动态未知环境中全覆盖路径规划面临的路径冗余率高和环境适应性差等难题,提出一种基于新型贪心-D^(*)算法(Novel Greedy-D^(*)Algorithm,NG-D^(*))的无人机全覆盖路径规划。首先,构建动态增量式环境建模系统,实现障碍物分布实时更... 针对动态未知环境中全覆盖路径规划面临的路径冗余率高和环境适应性差等难题,提出一种基于新型贪心-D^(*)算法(Novel Greedy-D^(*)Algorithm,NG-D^(*))的无人机全覆盖路径规划。首先,构建动态增量式环境建模系统,实现障碍物分布实时更新与矩阵化栅格状态精准映射,增强系统环境感知能力。其次,设计最小值优先三元组贪心决策函数,通过评估曼哈顿距离、横向优先级与纵向优先级,生成结构化有序覆盖路径。最后,引入关键节点导向D^(*)逃离算法,在检测到局部死区时高效规划平滑脱离路径。实验结果表明,相较于传统方法,NG-D^(*)算法在保持覆盖完整性的前提下,将路径冗余率降低至3.0%以下。 展开更多
关键词 D^(%MUL%)
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基于多目标优化算法的多无人机海上搜救路径规划
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作者 章文俊 廖凯 +3 位作者 孟祥坤 杨雪 周翔宇 郑怀宇 《中国航海》 北大核心 2026年第1期66-77,共12页
针对多变海洋环境与紧迫时间需求下的多无人机海上搜救任务,提出一种面向搜索效率与资源均衡的覆盖路径规划方法。首先,通过基于网格的区域分解方法将复杂的海上环境简化为可视化的规划单元,引入高斯混合模型对目标漂移分布进行先验建模... 针对多变海洋环境与紧迫时间需求下的多无人机海上搜救任务,提出一种面向搜索效率与资源均衡的覆盖路径规划方法。首先,通过基于网格的区域分解方法将复杂的海上环境简化为可视化的规划单元,引入高斯混合模型对目标漂移分布进行先验建模,生成概率分布图以引导路径搜索。其次,在多无人机覆盖路径规划中,基于改进的多目标粒子群优化算法,融合任务分配、路径安全、高优先级区域覆盖及能耗控制等多个优化目标。再次,为提升算法全局搜索能力与收敛性能,引入基于Sigmoid函数的自适应动态权重调整机制、双层精英交叉策略以及路径约束惩罚等改进策略。最后,部署三架无人机在多种形状搜救区域中开展仿真试验。结果表明:所提方法在无人机前50步目标累计发现概率、任务均衡度和路径总长度方面,分别较传统经典算法最高提升了30.27%、82.5%和1.28%,验证了所提方法在提升搜救效率和任务均衡性方面的有效性与可行性。 展开更多
关键词
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多机器人全覆盖路径规划算法——基于Boustrophedon细胞分解与轨迹跟踪
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作者 胡妙丹 郑超 +3 位作者 谢舻 王孙杰 马梓琦 黄伟忠 《农机化研究》 北大核心 2026年第5期135-142,共8页
针对未知农田环境下的多机器人协同覆盖问题,提出了一种高效的全覆盖路径规划算法,以实现农业机械化的区域高效覆盖。首先,基于Boustrophedon细胞分解的路径规划框架,集成同步定位与建图(SLAM)技术进行实时地图构建,并通过全局路径规划... 针对未知农田环境下的多机器人协同覆盖问题,提出了一种高效的全覆盖路径规划算法,以实现农业机械化的区域高效覆盖。首先,基于Boustrophedon细胞分解的路径规划框架,集成同步定位与建图(SLAM)技术进行实时地图构建,并通过全局路径规划算法对作业区域路径进行详细规划,将全局覆盖路径均匀分配至各机器人,从而确保负载均衡;然后,采用PID控制器来增强轨迹跟踪的鲁棒性,以实现精确路径跟随,确保覆盖过程的稳定性和准确性;最后,在平坦水稻田和复杂混种大田两种典型农田地图进行仿真试验。试验结果表明,与单机器人覆盖相比,部署5台机器人将覆盖时间从12250~24500 s显著缩短至2450~4900 s,路径重叠率降至(4±1)%~(5±1)%,负载均衡差异小于50%。算法通过优化分解和分配机制,显著提高了覆盖效率和资源利用率,为多机器人协同农业作业提供了可靠框架。 展开更多
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面向全覆盖路径规划的类Rulkov混沌映射算法设计
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作者 刘思聪 何明 +3 位作者 李春彪 韩伟 刘承卓 夏恒煜 《电子与信息学报》 北大核心 2026年第2期842-854,共13页
该研究提出了一种基于正弦约束的类Rulkov超混沌映射(SRHC)系统,并将其应用于全覆盖路径规划算法(SRHC-CCPP)中,以解决智能机器人在复杂任务场景中的全覆盖路径规划问题。通过引入超混沌序列,该算法显著提升了机器人运动路径的随机性和... 该研究提出了一种基于正弦约束的类Rulkov超混沌映射(SRHC)系统,并将其应用于全覆盖路径规划算法(SRHC-CCPP)中,以解决智能机器人在复杂任务场景中的全覆盖路径规划问题。通过引入超混沌序列,该算法显著提升了机器人运动路径的随机性和动态性,避免了传统算法因规律性过强而可能陷入局部循环的问题。同时,结合记忆效应,算法能够动态记录网格访问历史,优先覆盖未访问区域,从而有效减少重复访问,提升覆盖效率。在障碍物处理方面,设计了碰撞检测与法线向量反射机制,使机器人能够灵活应对复杂环境中的障碍物干扰,并通过轻微扰动避免局部振荡。实验结果表明,SRHC-CCPP算法在无障碍和有障碍物条件下均表现出较高的覆盖速度和均匀性,展现了良好的初始值敏感性和鲁棒性。此外,算法的计算复杂度较低,适合大规模应用场景。该研究为智能机器人在灾区救援、火灾扑灭及未知地域勘探等高风险任务中的应用提供了新的技术支持。 展开更多
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芡实打捞船全覆盖作业路径规划研究
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作者 陈志 胡军 +2 位作者 石航 刘昶希 李宇飞 《农机化研究》 北大核心 2026年第2期183-190,共8页
芡实打捞船工作环境复杂,由于自身的操纵性约束使得常规的全覆盖路径规划算法对其适用性不高。基于此,对芡实种植环境特点进行分析,提出了其种植水域的环境建模方法。首先,详细从水动力学因素、固定支点、舵效和推进效率等4个方面探讨... 芡实打捞船工作环境复杂,由于自身的操纵性约束使得常规的全覆盖路径规划算法对其适用性不高。基于此,对芡实种植环境特点进行分析,提出了其种植水域的环境建模方法。首先,详细从水动力学因素、固定支点、舵效和推进效率等4个方面探讨了芡实打捞船与传统农机作业的区别,通过对比转弯代价得出最佳工作方式;然后,将芡实打捞船全覆盖作业路径规划转化为旅行商(TSP)问题,以最小化转弯路径总距离为优化目标,提出了基于TSP的芡实打捞船全覆盖路径规划方法,并采用改进的粒子群优化算法进行求解;最后,通过MatLab平台进行仿真对比试验。结果表明:基于改进PSO算法的路径规划方法能够有效降低芡实打捞船的转弯路径总距离,提高作业效率和质量,同时减少不必要的能源消耗。通过算法寻优性能分析,验证了改进粒子群优化算法在解决芡实打捞船作业路径优化问题上具有一定的优势。研究成果为芡实打捞船在复杂水域环境中的高效作业提供了理论支持,对推动农业船舶路径规划的发展具有重要意义。 展开更多
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多边形田块下无人插秧机全覆盖作业路径规划方法 被引量:1
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作者 葛德强 吴昭昭 +2 位作者 季海波 杜华庆 李晋阳 《农机化研究》 北大核心 2026年第2期191-198,共8页
针对多边形田块下无人插秧机作业路径规划效率低、覆盖率低、适应性差的问题,提出了一种全覆盖作业路径规划方法。构建了转弯成本公式,分析了转弯方式对路径规划的影响规律,并在此基础上采用道格拉斯—普克算法结合等距偏移算法对田块... 针对多边形田块下无人插秧机作业路径规划效率低、覆盖率低、适应性差的问题,提出了一种全覆盖作业路径规划方法。构建了转弯成本公式,分析了转弯方式对路径规划的影响规律,并在此基础上采用道格拉斯—普克算法结合等距偏移算法对田块边界进行预处理,划分了内外工作区。以最小化转弯成本为目标,提出最优作业方向角求取方法,并对作业方向进行了优化。综合考虑田块出入口位置和奇偶作业行的约束,以转弯成本最小为优化目标,提出了基于改进遗传算法的遍历顺序优化方法,求解最优的全覆盖路径遍历顺序,解决了传统遍历方式适应性差和由大规模路径引起经典遗传算法陷入局部最优化的问题。为了验证提出算法的有效性,对3块典型田块开展了路径规划试验,结果显示:路径平均作业覆盖率达94.75%,平均有效作业比达93.56%,作业成本比传统方法最高减少了6.7%。由此表明,全覆盖路径规划算法的效果满足插秧机作业要求。 展开更多
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基于覆盖圆的无人机区域覆盖飞行路径规划方法
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作者 张然 裴萌洋 姚文祺 《兵器装备工程学报》 北大核心 2026年第1期225-236,共12页
针对无人机在不规则区域执行完全覆盖飞行任务时存在覆盖率低、路径长等问题,提出一种基于覆盖圆的无人机区域覆盖路径规划方法。该方法设计了一种近似最小圆形覆盖优化算法,动态生成并优化无人机的飞行覆盖点,通过引入贪婪选择与重叠... 针对无人机在不规则区域执行完全覆盖飞行任务时存在覆盖率低、路径长等问题,提出一种基于覆盖圆的无人机区域覆盖路径规划方法。该方法设计了一种近似最小圆形覆盖优化算法,动态生成并优化无人机的飞行覆盖点,通过引入贪婪选择与重叠惩罚机制,保证在完全覆盖的同时最小化覆盖点数量。在此基础上,结合混合初始化和特定2-opt局部搜索的改进模因算法,优化访问覆盖点的飞行路径。仿真实验结果表明:相较于传统往复式方法,所提方法在达到100%覆盖的同时,重叠率平均降低了54.23%,总路径长度缩短了44.14%;与维诺图方法相比,覆盖率平均提升了5.23%,重叠率降低了32.43%,总路径长度缩短了4.67%,证明了该方法在无人机区域覆盖飞行方面的有效性和优越性。 展开更多
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基于知识图谱的无人机集群覆盖路径规划方法
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作者 杨欢 《智能物联技术》 2026年第2期29-33,共5页
针对无人机集群在复杂场景中任务分配不均、路径冗余高等问题,研究融合知识图谱的集群路径规划机制。阐述任务-区域语义图谱的构建方法,介绍图神经网络在路径目标推理中的嵌入结构,提出结合动态控制反馈的路径生成与更新算法。在多类仿... 针对无人机集群在复杂场景中任务分配不均、路径冗余高等问题,研究融合知识图谱的集群路径规划机制。阐述任务-区域语义图谱的构建方法,介绍图神经网络在路径目标推理中的嵌入结构,提出结合动态控制反馈的路径生成与更新算法。在多类仿真任务区域的测试结果表明,所提方法在覆盖率、冗余率及控制响应时间等指标上优于对比方案,具有较强的系统稳定性和资源适应性。 展开更多
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基于改进粒子群算法的高地隙无人喷雾机对不规则凸田块的全覆盖作业路径规划 被引量:7
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作者 刘国海 万亚连 +3 位作者 沈跃 刘慧 何思伟 张亚飞 《华南农业大学学报》 北大核心 2025年第3期390-398,共9页
【目的】满足高地隙无人喷雾机自主导航全覆盖作业的应用需求并优化农机作业效率。【方法】提出了一种针对不规则凸田块的全覆盖遍历路径规划算法。首先,通过获取农田区域的边界数据,得到不规则凸田块的边界轮廓模型;其次,在传统U型转... 【目的】满足高地隙无人喷雾机自主导航全覆盖作业的应用需求并优化农机作业效率。【方法】提出了一种针对不规则凸田块的全覆盖遍历路径规划算法。首先,通过获取农田区域的边界数据,得到不规则凸田块的边界轮廓模型;其次,在传统U型转弯方式的基础上,引入作业行与田块边界的夹角,对作业行间的衔接路径原理进行详细阐述;由经过不规则凸区域中心点的直线进行平行线偏移,生成随机方向角的全覆盖作业行后,通过改进的粒子群优化(Particle swarm optimizer,PSO)算法对作业行方向角进行最优化,规划出遍历田块的全覆盖作业路径;最后,将算法在4块典型实际田块中进行仿真测试。【结果】与传统路径规划算法相比,改进PSO算法在1~4个田块的总遍历距离分别减少9.01、23.25、8.71和14.32 m,转弯次数减少率分别下降11.1%、61.5%、16.7%和5.3%,额外覆盖比分别减少0.20、0.96、0.45和1.96个百分点,有效减少了无人农机的能量消耗、提高了作业效率。【结论】在作业区域被完全覆盖的前提下,本算法能规划出无人农机行驶路程较短、覆盖率较高和转弯次数较少的作业路径,可为无人农机的路径规划技术的发展提供理论支撑。 展开更多
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